CN103674542A - Testing equipment for linear motion module - Google Patents

Abstract

A test apparatus for testing a linear motion module. The linear motion module is provided with a linear track and a sliding seat. The testing device comprises a driving device, a moving device, a load sensing device and a fixing device. The motion device is connected with the driving device and is provided with a rod body and a motion body. The motion body is arranged on the rod body in a sliding way. The load sensing device is connected with the motion device. The fixing device is used for accommodating at least one part of the load sensing device and fixing the sliding seat of the linear motion module. When the driving device drives the motion body to move relative to the rod body, the motion device drives the fixing device and the linear motion module to move through the load sensing device, and a test result is output by the load sensing device. The test equipment is suitable for evaluating the mechanical efficiency of the linear motion module in the complete linear motion process, and improves the measurement accuracy.

Description

Test equipment for linear motion modules

technical field

The present invention relates to a testing device, in particular to a testing device for a linear motion module.

Background technique

The linear slide rail is a high-precision transmission component. The infinite rolling contact between the slide seat and the slide rail is made by the ball, so that the slide seat can easily perform linear motion with high precision along the slide rail. Linear slides have been widely used in precision machinery, automation, various power transmission, semiconductor, medical and aerospace industries, and play an extremely critical role.

Because the linear slide is a high-precision transmission component that requires high mechanical efficiency, the quality of the mechanical efficiency has always been the quality indicator of the linear slide. At present, the general spring tester is used to test the linear slide rail. Through the deformation of the spring structure 1 (please refer to Figure 1) in the spring tester due to the pulling of the linear slide rail, the required initial movement of the linear slide rail is converted. Force, and then compare the measured results with the previous experience, you can know the mechanical efficiency of the linear slide. However, due to the instability of force applied by manually operating the spring tester and the angle between the pulling direction and the moving direction of the slider, the accuracy of measuring the mechanical efficiency with the spring tester is quite unreliable. Moreover, this measurement method can only measure the smoothness of the linear slide rail in the initial movement and short-distance movement, but cannot measure the complete mechanical efficiency.

Therefore, how to provide a linear slide rail testing device that can improve the test accuracy including mechanical efficiency and is more suitable for measuring the mechanical efficiency of the linear slide rail in a complete linear motion process has become an important issue.

Contents of the invention

The object of the present invention is to provide a kind of test equipment, it is used for testing the linear motion module, and is suitable for evaluating the mechanical efficiency of the linear motion module in a complete linear motion process, to overcome the known spring tester can only be used for Measure the shortcomings of initial movement and short-distance movement, and improve the accuracy of measurement.

Another object of the present invention is to overcome the inaccuracy and large error value of the test results caused by the use of the spring tester.

The present invention can be realized by adopting the following technical solutions.

A testing device of the present invention is used for testing a linear motion module, wherein the linear motion module has a linear track and a sliding seat. The test equipment includes a driving device, a moving device, a load sensing device and a fixing device. The moving device is connected with the driving device, and has a rod body and a moving body, and the moving body is slidably arranged on the rod body. The load sensing device is connected to the exercise device. The fixing device accommodates at least a part of the load sensing device, and the fixing device fixes the sliding seat of the linear motion module. When the driving device drives the moving body to move relative to the rod body, the moving device drives the fixing device and the linear motion module to move through the load sensing device, and the load sensing device outputs a test result. Preferably, the linear motion module is a linear slide rail.

In an embodiment of the present invention, the load sensing device is a resistive, capacitive or strain sensor.

In one embodiment of the present invention, the load sensing device includes a force response component, and when the load sensing device drives the fixed device and the linear motion module to move through the force response component, the force of the load sensing device relative to the fixed device, to output the test results. Preferably, when the load sensing device drives the fixing device forward, because the load sensing device exerts a force on the fixing device, and the fixing device provides a reaction force to the load sensing device at the same time, the force response component feels the reaction The difference in force produces deformation, and outputs the value corresponding to the deformation result, that is, the test result.

In an embodiment of the present invention, wherein the load sensing device includes a measurement component and a data processing component, the measurement component is coupled to the data processing component, and the measurement component measures the test result generated by the response of the force response component, For example, the deformation generated by the force response component, and the data processing component outputs the test results.

In an embodiment of the present invention, the test equipment further includes a display device coupled to the load sensing device and displaying test results.

In an embodiment of the present invention, the test equipment further includes an operating device coupled to the driving device.

In an embodiment of the present invention, the moving device includes at least one test track module, which is substantially arranged parallel to the rod body.

In an embodiment of the present invention, the exercise device includes a support component disposed on the exercise body, and the load sensing device is fixed and connected to the support component. The supporting component includes at least one fixing part, and the fixing part fixes the load sensing device on the supporting component.

In an embodiment of the present invention, the fixing device includes two protrusions defining an accommodating space, and part of the load sensing device is accommodated in the accommodating space. The fixing device includes two stoppers, which are respectively arranged at two ends of the fixing device, and the stoppers contact and fix the two ends of the linear motion module.

In an embodiment of the present invention, the testing device further includes at least two fixing seats for fixing the linear motion module.

In an embodiment of the present invention, the testing device further includes at least two spacers, which are arranged corresponding to the linear motion module to support both ends of the linear track.

In an embodiment of the present invention, the testing device further includes a body, and the driving device, the moving device, the load sensing device and the fixing device are arranged on the body.

As mentioned above, according to a test device of the present invention, the force of the load sensing device relative to the fixing device can be sensed by the load sensing device when the fixing device and the linear motion module move, and the output test results can be used to further Judging data related to the production yield of the linear motion module, such as the mechanical efficiency of the linear motion module. Therefore, the present invention can indeed be used as a testing device for linear motion modules.

In addition, since the testing device of the present invention is suitable for driving the linear motion module to reciprocate and test the results, it can completely test the motion of the linear motion module. Since the power source of the test is the sliding of the moving body on the rod body, the direction of force application is fixed, and there is less human error.

Compared with the known technology, the present invention provides a testing device, which can improve the problems that cannot be solved by the known spring tester in many aspects. In detail, because the load sensing device of the testing device according to the present invention is accommodated in the accommodating space of the fixing device, the force of the load sensing component on the fixing device can be parallel to the force of the linear motion module, compared to The known spring tester needs to provide an additional pulling force, and the angle of each pulling may be different, resulting in a decrease in accuracy and a large error range. The present invention has the advantages of high accuracy and easy digitization, and is more suitable for judging production Yield standard. In addition, compared with the prior art, the present invention can completely test the motion of the linear motion module instead of just short-distance movement.

Description of drawings

1 is a schematic diagram of a known spring tester for measuring linear motion modules;

FIG. 2 is a schematic diagram of a test device for a linear motion module according to a preferred embodiment of the present invention;

Fig. 3 is the schematic diagram of test equipment and linear motion module shown in Fig. 2;

Fig. 4 is an exploded view of the test equipment shown in Fig. 2;

Figure 5 is an enlarged schematic view of the motion device shown in Figure 2;

6 is a system block diagram of a load sensing device according to a preferred embodiment of the present invention; and

Fig. 7 is a schematic diagram of the use of spacers according to a preferred embodiment of the present invention.

Description of main component symbols:

1: Spring structure

2: Test equipment

21: Drive device

22: Sports device

221: rod body

222: Motion Ontology

223: Test Track Module

224: Support components

225: fixed part

226: Support Platform

23: Load sensing device

231: Stress Response Components

232: Measuring components

233: Data processing components

24: Fixtures

241: Protrusion

242: Accommodating Space

243: stopper

25: Display device

251: wire

26: Fixed seat

261: seat body

262: Manual switch

263: Resist Head

27: spacer

28: Ontology

29: Operating device

3: Linear motion module

31: Linear track

32: sliding seat

Detailed ways

A testing device for a linear motion module according to a preferred embodiment of the present invention will be described below with reference to related drawings, wherein the same components will be described with the same reference numerals.

2 is a schematic diagram of a testing device for a linear motion module according to the present invention, FIG. 3 is a schematic diagram of the testing device and the linear motion module shown in FIG. 2 , and FIG. 4 is an exploded schematic diagram of the testing device shown in FIG. 2 . The structure and components of the test equipment will be described below with reference to FIG. 2 to FIG. 4 , and then the relevant details will be further described in detail.

Please refer to FIG. 2 and FIG. 3 at the same time, the testing device 2 of the present invention is used to test a linear motion module 3 . The linear motion module 3 to be tested can be any linear slide rail or linear guide rail, and has a linear track 31 and a sliding seat 32 . The testing device 2 includes a driving device 21 , a moving device 22 , a load sensing device 23 and a fixing device 24 . The moving device 22 is connected to the driving device 21 and has a rod body 221 and a moving body 222 , and the moving body 222 is slidably disposed on the rod body 221 .

In this embodiment, the moving device 22 is based on a guide rail actuator or a guide rail actuator, and is connected to the driving device 21 through one end of the rod body 221 . Therefore, when the driving device 21 drives the rod body 221 to rotate, the moving body 222 can slide on the rod body 221 relative to the rod body 221 . However, the moving device 22 can be other mechanical devices capable of achieving the same effect, and the present invention is not limited thereto.

The load sensing device 23 is connected to the motion device 22 . Figure 5 is an enlarged schematic view of the motion device shown in Figure 2, please refer to Figure 5, in this embodiment, the motion device 22 also includes a test track module 223 and a support assembly 224, wherein the support assembly 224 moves around The body 222 is disposed on the moving body 222 , and the supporting component 224 also extends toward a direction substantially perpendicular to the rod body 221 , so that the moving device 22 has a larger platform space.

In addition, the support assembly 224 includes at least one fixing portion 225 and a support platform 226. The fixing portion 225 is arranged on the support platform 226, and the load sensing device 23 is fixed to the support assembly 224 by means such as screw locks, so that the load sensing The device 23 is stably connected to the movement device 22 .

The fixing device 24 accommodates at least a part of the load sensing device 23 . As shown in the figure, in this embodiment, the fixing device 24 includes two protruding parts 241, and an accommodating space 242 is defined by the spaced arrangement of the two protruding parts 241, and one end of the load sensing device 23 can be Accommodated in the accommodating space 242 . It should be noted that the width of the accommodating space 242 can be greater than the width of the load sensing device 23, so that when the load sensing device 23 is accommodated therein, it is not completely attached to the protruding portion 241, but there is still room. It is convenient for installation, and no matter which direction the load sensing device 23 moves, there is a buffer space, so as to avoid the problem of large deviation of the initial measurement value obtained in the static state.

The fixing device 24 fixes the sliding seat 32 of the linear motion module 3 . In this embodiment, the fixing device 24 also includes two stoppers 243, which are respectively arranged at the two ends of the fixing device 24, so that the fixing device 24 forms an upper cover structure similar to the linear motion module 3, and covers the linear motion module 3. above, and have the same shape and size as the linear motion module 3.

Based on the above structure, when the driving device 21 drives the rod body 221 of the moving device 22 to rotate, so that the moving device 22 moves, the load sensing device 23 is fixed and connected to the moving device 22 through the support assembly 224, so the load sensing device 23 is simultaneously The linear motion of the moving device 22 drives the fixing device 24 and the linear motion module 3 to be tested to move, and the load sensing device 23 outputs a test result.

Compared with the prior art spring tester, the force applied to the stopper 243 by the load sensing device 23 is a force parallel to the linear track 31, which is different from the known pulling force provided manually by the user. , it is difficult to control the magnitude and angle of the applied force, which will cause errors.

According to the test equipment 2 of the present invention, the load sensing device 23 can be a resistive, capacitive or strain force sensor. The present invention does not limit the type of sensor, only a device that can measure the magnitude of the bearing force is selected. For example, the load sensing device 23 may include a force response component 231 disposed on a side of the load sensing device 23 facing the protruding portion 241 . When the load sensing device 23 pushes the fixing device 24 and the linear motion module 3 to be tested to move, it will receive the reaction force of the two. Because the force response component 231 itself is elastic and conductive, it will deform when subjected to the reaction force, resulting in a change in resistance, and then the resistance is measured by other components in the load sensing device 23 changes, as output test results.

In a nutshell, the force response component 231 is located in the load sensing device 23, so when the yield rate of the linear motion module 3 to be tested is not good, for example, when there is a gap on the wall of the ball return channel, or the groove surface of the slide rail is poorly processed, the slide The movement of the seat 32 on the linear track 31 will not be smooth, so to maintain a constant speed movement, the output of the driving device 21 must be strengthened, causing the load sensing device 23 to exert more force on the fixing device 24 to move the straight line to be tested Movement Module3. At the same time, when the load sensing device 23 senses the reaction force of the fixing device 24 to increase, the force response component 231 will have a greater deformation, that is, the test result shows that the resistance value changes more, which means that the product yield is not good.

To further illustrate the measurement details above, please refer to FIG. 6 , which is a system block diagram of a load sensing device according to a preferred embodiment of the present invention. The load sensing device 23 also includes a measurement component 232 and a data processing component 233, the measurement component 232 is coupled to the data processing component 233, and measures the response of the force response component 231 (for example, the above-mentioned deformation causes the resistance value to change) The test result is generated, and the data processing component converts the test result into a signal or data for output.

In detail, depending on whether the load sensing device 23 used is resistive, capacitive, strain-sensitive or other types, the force response component 231 may be deformed, displaced or other physical changes due to force, so that the resistance value, capacitance value or other measurable values change, and the measurement component 232 measures the change, and transmits the measurement result to the data processing component 233, and the data processing component 233 can output a specific value. In addition, the testing device 2 also includes a display device 25, which is, for example, a computer screen. The display device 25 can be wired (such as the wire 251 shown in FIG. 2 or FIG. 3 ) or wirelessly connected to the load sensing device 23 to display the test results for the user's reference.

In addition, the moving device 22 may include at least one test track module 223. Preferably, please refer to FIG. 2 and FIG. The motion body 222 can maintain balance when moving linearly, and has a motion pattern similar to that of the linear motion module 3 to be tested. However, the present invention does not limit the number of test track modules 223 , but it is better to arrange them symmetrically to achieve balance. It should be noted that the test equipment 2 may not be provided with test track modules 223 , which is not limited by the present invention.

Please refer to FIG. 3 and FIG. 4 , in this embodiment, the testing device 2 further includes at least two fixing seats 26 for fixing the linear track 31 of the linear motion module 3 to be tested. In detail, please refer to FIG. 7, the fixed seat 26 can be a quick switch, and the opening and closing of the contact head 263 is controlled by the hand switch 262 arranged on the seat body 261, so as to achieve tight contact or release of the linear motion module 3. Linear track 31. In addition, in addition to the fixing seat 26 , the testing device 2 in this embodiment also includes at least two pads 27 , which are arranged corresponding to the installation positions of the linear motion module 3 to support both ends of the linear track 31 . The spacer 27 is designed to cooperate with the fixing seat 26, and is mainly used for smaller linear motion modules, so as to avoid being unable to be fixed by the fixing seat 26 due to too small size, and expand the application range of the testing device 2 .

Please refer to shown in Fig. 2, test equipment 2 also comprises a body 28, and driving device 21, motion device 22, load sensing device 23 and fixing device 24 are arranged on body 28, have and make test equipment can run smoothly and be easy to set up Function.

In addition, an operating device 29 can be provided on the body 28, coupled to the driving device 21, through the setting of the operating device, the speed of the driving device 21 can be set or changed to meet the requirements of the test operation.

In general, after the linear motion module 3 to be tested is installed on the main body 28 , the user can activate and set the speed of the driving device 21 through the operating device 29 . When the driving device 21 drives the moving device 22, the load sensing device 23 connected to the moving device 22 will apply a force to the linear motion module 3 to drive the linear motion module 3 to move. At this time, the linear motion module 3 is fixed The fixing device 24 will give a reaction force to the load sensing device 23 . It should be noted that the reaction force described in the present invention is broadly defined as the force exerted by the fixing device 24 on the load sensing device 23, so the reaction force is actually the sum of other forces (such as friction) that have been added force. The load sensing device 23 can, for example, use the force response component 231 to deform by sensing force, thereby causing a change in resistance or capacitance, and finally output the test result as a criterion for product yield.

Based on the above, according to the linear motion module efficiency testing equipment of the present invention, the force of the load sensing device relative to the fixing device can be sensed by the load sensing device when the fixing device and the linear motion module are moving, and can be output through the The test results then judge the mechanical efficiency of the linear motion module. Therefore, the present invention can completely test the motion situation of the linear motion module.

Compared with the known technology, the present invention provides a linear motion module efficiency testing device, which can improve the problems that cannot be solved by the known spring tester in many aspects. In detail, according to the test equipment of the linear motion module of the present invention, since the load sensing device is accommodated in the accommodating space of the fixing device, the force of the load sensing component on the fixing device is parallel to the force of the linear motion module, Compared with the known spring tester, it is necessary to provide an additional pulling force, and the angle of pulling away is different each time, resulting in a decrease in accuracy and a large error range. In addition, compared with the prior art, the present invention can completely test the motion of the linear motion module instead of just short-distance movement.

The above description is only illustrative, not restrictive. Any equivalent modification or change made without departing from the spirit and scope of the present invention shall be included within the scope defined in the claims.

Claims (14)

1. A testing device, used to test a linear motion module, the linear motion module has a linear track and a slide, it is characterized in that the testing device includes: a driving device; A moving device, connected to the driving device, has a rod body and a moving body, and the moving body is slidably arranged on the rod body; a load sensing device, connected to the movement device; and a fixing device for accommodating at least a part of the load sensing device, and the fixing device fixes the sliding seat of the linear motion module, Wherein when the driving device drives the moving body to move relative to the rod body, the moving device drives the fixing device and the linear motion module to move through the load sensing device, and the load sensing The device outputs a test result. 2. The testing device according to claim 1, wherein the load sensing device is a resistive, capacitive or strain force sensor. 3. The testing device according to claim 1, wherein the load sensing device includes a force response component, and the load sensing device drives the fixing device and the load sensing device through the force response component. When the linear motion module moves, the force of the load sensing device relative to the fixing device is used to output the test result. 4. The testing device according to claim 3, wherein the load sensing device comprises a measurement component and a data processing component, the measurement component is coupled to the data processing component, and the measurement component The component measures the response of the force response component to generate the test result, and the data processing component outputs the test result. 5. The testing device according to claim 1, further comprising: A display device is coupled to the load sensing device and displays the test result. 6. The testing device according to claim 1, further comprising: An operating device is coupled to the driving device. 7. The test device according to claim 1, wherein the moving device comprises at least one test track module, which is arranged parallel to the rod body. 8 . The testing device according to claim 1 , wherein the moving device comprises a supporting component disposed on the moving body, and the load sensing device is fixed and connected to the supporting component. 9 . The testing device according to claim 8 , wherein the support assembly comprises at least one fixing portion, and the fixing portion fixes the load sensing device to the support assembly. 10 . 10. The testing device according to claim 1, wherein the fixing device comprises two protrusions defining an accommodating space, and the part of the load sensing device is accommodated in the Accommodate space. 11. The testing device according to claim 1, wherein the fixing device comprises two stoppers, which are respectively provided at both ends of the fixing device, and the stoppers abut and fix the straight line Both ends of the motion module. 12. The testing device according to claim 1, further comprising: At least two fixing seats are used to fix the linear motion module. 13. The testing device according to claim 1, further comprising: At least two pads are provided corresponding to the linear motion module to support both ends of the linear track. 14. The testing device according to claim 1, further comprising: A body, the driving device, the moving device, the load sensing device and the fixing device are arranged on the body.

Images