CN102705463A - Differential screw fine adjustment device - Google Patents
Differential screw fine adjustment device Download PDFInfo
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- CN102705463A CN102705463A CN2012101937027A CN201210193702A CN102705463A CN 102705463 A CN102705463 A CN 102705463A CN 2012101937027 A CN2012101937027 A CN 2012101937027A CN 201210193702 A CN201210193702 A CN 201210193702A CN 102705463 A CN102705463 A CN 102705463A
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Abstract
本发明公开了一种精密微调装置，特别涉及一种差动螺旋微调装置。该装置由底座、导向杆、导向板、螺杆、螺钉、调整螺套组成，所述底座上设置上下贯通的螺纹孔及上下贯通的光孔；所述调整螺套为套状结构，外圆柱面设有外螺纹，内圆柱面设有内螺纹，外螺纹与螺纹孔螺纹连接，形成一对螺旋副，所述调整螺套上的内螺纹与螺杆螺纹连接，所述调整螺套的内螺纹、外螺纹的旋向一致，但螺距不等，两个螺旋副的螺旋差，即为转动调整螺套一圈而产生的微调距离。本发明的差动螺旋微调装置结构简单、设计合理，易于操作；差动产生的实际直线位移量小，可以实现精确微调；差动微调方便，位置定位可靠，精密度高，适用范围比广。
The invention discloses a precision fine-tuning device, in particular to a differential screw fine-tuning device. The device is composed of a base, a guide rod, a guide plate, a screw, a screw, and an adjusting screw sleeve. The base is provided with a threaded hole penetrating up and down and a light hole penetrating up and down; the adjusting screw sleeve is a sleeve-shaped structure, and the outer cylindrical surface An external thread is provided, and an internal thread is provided on the inner cylindrical surface, and the external thread is threadedly connected with the threaded hole to form a pair of spiral pairs. The internal thread on the adjusting screw sleeve is threadedly connected with the screw rod. The direction of rotation of the external threads is the same, but the pitches are not equal. The difference in the helix of the two helical pairs is the fine-tuning distance produced by turning the adjusting screw sleeve one turn. The differential screw fine-tuning device of the present invention is simple in structure, reasonable in design, and easy to operate; the actual linear displacement generated by the differential is small, and precise fine-tuning can be realized; the differential fine-tuning is convenient, the position positioning is reliable, the precision is high, and the application range is relatively wide.
Description
Technical field
The present invention relates to a kind of precision micrometer adjustable device, particularly a kind of differential screw vernier device.
Background technique
In the work of carrying out Machine Design and assembling, run into the problem that needs accurately to adjust the component position through regular meeting, the short-cut method that adopts usually is directly to utilize a pair of screw pair to regulate.Though but this method is easy, receive the restriction of pitch size, can't accurately adjust part position.
Application number is that 201110155051.8 patent application discloses a kind of constant force self-locking differential screw vernier device; This vernier device comprises control agent, master connecting rod body and slave connecting rod body, and the outside thread of the internal thread of master connecting rod body and slave connecting rod body connects the vernier device that constitutes differential type with the outside thread and the internal thread of control agent respectively; Described control agent comprises Adjusting bolt Adjusting screw, interior cover and overcoat; Cover and overcoat on the right-hand member outer cylinder of Adjusting bolt Adjusting screw, being inserted in successively; Through overcoat is connected with the riveting of Adjusting bolt Adjusting screw right side, be enclosed within making on the Adjusting bolt Adjusting screw and can freely rotate and reach axially locating, form control agent; Described master connecting rod body comprises master connecting rod, lock nut and big spring; Lock nut and big spring are installed by left end outside thread place at Adjusting bolt Adjusting screw; Adjusting bolt Adjusting screw takes lock nut and big spring revolves in the interior threaded hole that is inserted in master connecting rod together, and the rotational lock nut shrinks big spring again, aligns with elongated slot on the master connecting rod up to the pin-and-hole on the lock nut external diameter; And with in the pin-and-hole on the elongated slot insertion lock nut external diameter of locating stud on master connecting rod; Make master connecting rod and lock nut on the major diameter of thread of Adjusting bolt Adjusting screw, produce axial force in opposite directions, Adjusting bolt Adjusting screw and master connecting rod constant force self-locking are formed the master connecting rod body; Described slave connecting rod body comprises slave connecting rod, pin, spring housing, spring and locking nut; Successively spring housing, spring and locking nut are installed on the slave connecting rod respective outer diameter; Pin-and-hole on the locking nut external diameter is alignd with the elongated slot of the big outer radius of spring housing; And insert in the pin-and-hole of locking nut external diameter through the elongated slot of the big outer radius of spring housing with position limit pin, insert in the pin-and-hole of slave connecting rod right-hand member composition slave connecting rod body with the elongated slot of pin through the little outer radius of spring housing; In the internal thread that screws into Adjusting bolt Adjusting screw of slave connecting rod; Pushing spring housing shrinks spring; Align with screw on the interior cover external diameter and use bolton up to the screw at spring housing left end place; Make spring housing pulling Adjusting bolt Adjusting screw and locking nut on the major diameter of thread of slave connecting rod, produce relative shaft orientation force, Adjusting bolt Adjusting screw and slave connecting rod constant force self-locking revolve the positioning screwn in the screw of master connecting rod middle part in the elongated slot that is inserted on the outer spiral shell of the slave connecting rod left end footpath again; Make on the Adjusting bolt Adjusting screw master connecting rod and slave connecting rod regulate with the self-locking process in guarantee the parallelism of two hole heart lines, whole composition constant force self-locking differential screw vernier device.
Above-mentioned constant force self-locking differential screw vernier device though it is complicated accurately to adjust its structure of position, is not easy to manufacturing and troublesome poeration.
Summary of the invention
Deficiency based on existing technology; Main purpose of the present invention is to provide a kind of screw differential vernier device; This device can accurately be adjusted the position, and is simple in structure, is easy to manufacturing and easy to operate; Can be used for fine position, the adjustment of the gap between component of frock clamping in the machining process, Applicable scope is extensive.
For realizing above-mentioned purpose, the technological scheme that the present invention adopts is: a kind of differential screw vernier device, mainly form by base, guide rod, guide plate, screw rod, adjustment swivel nut, and the tapped hole of up/down perforation and the unthreaded hole of up/down perforation are set on the said base; Said adjustment swivel nut is a sleeve-like structure, and external cylindrical surface is provided with outside thread, and inner cylindrical surface is provided with internal thread; Outside thread on the said adjustment swivel nut is connected with the tapped hole on the base, forms a pair of screw pair; Internal thread on the said adjustment swivel nut is connected with screw flight, forms another to screw pair; Said guide rod lower end be fixed on the base unthreaded hole on, the upper end slides up and down with guide plate one end and is connected; The other end of guide plate is fixed in said screw rod upper end, and the lower end is provided with and adjusts the screw thread of the screw-internal thread fit use of swivel nut.
Said guide plate one end has elongated slot; The elongated slot pine is enclosed within on the guide rod; The other end is drilled with unthreaded hole or the screw that cooperates with screw rod; Connected by narrow groove between said unthreaded hole or screw and the end face, the both sides of narrow groove have little unthreaded hole and the little screw that matches with screw respectively in the side, and screw passes little unthreaded hole and is screwed in the little screw.
Big locking nut has been threaded on the adjustment swivel nut; Little locking nut has been threaded on screw rod.
Internal thread on the described adjustment swivel nut, externally threaded rotation direction are consistent, but pitch do not wait, and the spiral of two screw pairs is poor, is the fine setting distance of rotating adjustment swivel nut one circle and producing.
Differential screw vernier device of the present invention compared with prior art, simple in structure, processing ease; The actual straight-line displacement amount of differential generation is little, can realize accurate fine setting; Differential differential tuning is convenient, and location positioning is reliable; Applicable scope is bigger.
Description of drawings
The front cross-sectional view of Fig. 1 differential screw vernier device of the present invention;
The plan view of Fig. 2 differential screw vernier device of the present invention.
Embodiment
Below in conjunction with accompanying drawing and embodiment differential screw vernier device of the present invention is explained in detail and explains.
As depicted in figs. 1 and 2; A kind of differential screw vernier device; Form by base 1, guide rod 2, guide plate 3, screw rod 4, screw 5, little locking nut 6, adjustment swivel nut 7, big locking nut 8, the tapped hole 9 of up/down perforation and the unthreaded hole 10 of up/down perforation are set on the said base 1; Said adjustment swivel nut 7 is a sleeve-like structure, and external cylindrical surface is provided with outside thread, and inner cylindrical surface is provided with internal thread; Outside thread on the said adjustment swivel nut 7 is threaded with tapped hole 9 on the base and is connected, and forms a pair of screw pair, and the internal thread on the said adjustment swivel nut 7 is threaded with screw rod 4, forms another to screw pair; Internal thread, externally threaded rotation direction on the adjustment swivel nut 7 are consistent, but pitch does not wait; Said guide rod 2 lower ends are fixed in the unthreaded hole 10 on the base 1, and its effect is when rotating adjustment swivel nut 7, stops the screw rod rotation with guide plate 3; Adjusting the big locking nut 8 that has been threaded on the swivel nut 7, big locking nut 8 is processed with and adjusts the internal thread that swivel nut 7 outside threads cooperate; The little locking nut 6 that on screw rod 4, has been threaded, little locking nut 6 is processed with the internal thread with screw rod 4 screw-thread fit; Big locking nut 8 and little locking nut 6 are screwed in respectively on adjustment swivel nut 7 and the screw rod 4, and its effect is after the gap adjustment is accomplished, and are used for locking adjustment swivel nut 7 and screw rod 4, prevent they because receiving external force unintentional rotation.
As shown in Figure 2; Said guide plate 3 one ends have elongated slot; The elongated slot pine is enclosed within on the guide rod 2, and the other end is drilled with unthreaded hole or the screw that cooperates with screw rod 4, is connected by narrow groove between said unthreaded hole or screw and the end face; The both sides of narrow groove have little unthreaded hole and the little screw that matches with screw 5 respectively in the side, and screw 5 passes little unthreaded hole and is screwed in the little screw; Said screw rod 4 upper ends are installed in the unthreaded hole or screw of guide plate 3, tighten screw 5 clamping screw rods 4 it is fixed on the guide plate 3.
Differential screw vernier device of the present invention is adjusted the position of part with the mode of rotating the adjustment swivel nut; The screw rod upper end directly withstands on and is connected on the adjustment part or with quilt adjustment part, if rotate adjustment swivel nut one circle, adjusts swivel nut and screws in pitch t1 of base; Screw rod is owing to receive the restriction of guide plate and guide rod simultaneously; Can not rotate with the adjustment swivel nut, thereby and produce relative rotation between the adjustment swivel nut, be the distance of t2 and from the adjustment swivel nut, screw out a circle; Pitch t1 and t2's is poor, is the fine setting distance of rotating adjustment swivel nut one circle and producing.
Claims (4)
1. a differential screw vernier device mainly is made up of base, guide rod, guide plate, screw rod, adjustment swivel nut, it is characterized in that: the tapped hole of up/down perforation and the unthreaded hole of up/down perforation are set on the said base; Said adjustment swivel nut is a sleeve-like structure, and external cylindrical surface is provided with outside thread, and inner cylindrical surface is provided with internal thread; Outside thread on the said adjustment swivel nut is connected with the tapped hole on the base, forms a pair of screw pair; Internal thread on the said adjustment swivel nut is connected with screw flight, forms another to screw pair; Said guide rod lower end be fixed on the base unthreaded hole in, its upper end slides up and down with guide plate one end and to be connected; The other end of guide plate is fixed in said screw rod upper end, and the lower end is provided with and adjusts the screw thread of the screw-internal thread fit use of swivel nut.
2. ask 1 described differential screw vernier device according to right; It is characterized in that: said guide plate one end has elongated slot; The elongated slot pine is enclosed within on the guide rod, and the other end is drilled with unthreaded hole or the screw that cooperates with screw rod, is connected by narrow groove between said unthreaded hole or screw and the end face; The both sides of narrow groove are respectively equipped with little unthreaded hole and the little screw that matches with screw in the side, and screw passes little unthreaded hole and is screwed in the little screw.
3. ask 1 described differential screw vernier device according to right, it is characterized in that: big locking nut has been threaded on the adjustment swivel nut; Little locking nut has been threaded on screw rod.
4. according to arbitrary described differential screw vernier device in the claim 1,2,3, it is characterized in that: the internal thread on the described adjustment swivel nut, externally threaded rotation direction unanimity, pitch does not wait.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101937027A CN102705463A (en) | 2012-06-13 | 2012-06-13 | Differential screw fine adjustment device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101937027A CN102705463A (en) | 2012-06-13 | 2012-06-13 | Differential screw fine adjustment device |
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| CN102705463A true CN102705463A (en) | 2012-10-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012101937027A Pending CN102705463A (en) | 2012-06-13 | 2012-06-13 | Differential screw fine adjustment device |
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| CN (1) | CN102705463A (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104552436A (en) * | 2014-12-09 | 2015-04-29 | 北京工业大学 | Automatic punching machine for parts of electric vehicle |
| CN105115842A (en) * | 2015-09-21 | 2015-12-02 | 沈阳天星试验仪器有限公司 | Differential screw hardness measuring device |
| CN105114578A (en) * | 2015-07-28 | 2015-12-02 | 重庆长安汽车股份有限公司 | Quick high-precision micro-distance adjusting device |
| CN106271778A (en) * | 2016-09-29 | 2017-01-04 | 天津大学 | A kind of flexible distributing clamper for microsphere clamping Yu location |
| CN106972318A (en) * | 2017-04-07 | 2017-07-21 | 北京机械设备研究所 | A kind of pull-off plug passively pulls mechanism |
| CN109580156A (en) * | 2019-01-03 | 2019-04-05 | 成都中航华测科技有限公司 | A kind of fall-down test device that height is fine-tuning |
| CN110530737A (en) * | 2019-09-29 | 2019-12-03 | 天津津航计算技术研究所 | A kind of big moment of flexure loading device of rudderpost |
| CN114411832A (en) * | 2022-01-27 | 2022-04-29 | 天津大学 | Device for accurately controlling slow change of axial force of anchor rod in foundation pit model test |
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|---|---|---|---|---|
| DE2809188A1 (en) * | 1978-03-03 | 1979-09-06 | Messerschmitt Boelkow Blohm | Coarse and fine adjustment mechanism - has component between springs of different characteristics and adjustably loaded |
| EP0311478A1 (en) * | 1987-10-08 | 1989-04-12 | Rockwell Automotive Body Systems-France En Abrege:Rockwell Abs-France | Overload-protected screw jack for an adjustable device such as a seat |
| US4846011A (en) * | 1988-02-29 | 1989-07-11 | Gaffney Edward J | Clutch assembly |
| CN2120921U (en) * | 1992-05-21 | 1992-11-04 | 柳日升 | Differential screw arbor chang drive device |
| DE60300831T2 (en) * | 2002-03-20 | 2006-04-27 | Transrol | Linear drive with thread rollers |
| WO2011045182A1 (en) * | 2009-10-16 | 2011-04-21 | Thales | Differential roller screw |
| CN102278360A (en) * | 2011-06-10 | 2011-12-14 | 淮阴工学院 | Constant-force self-locking differential screw fine-tuning device |
| CN202674207U (en) * | 2012-06-13 | 2013-01-16 | 天润曲轴股份有限公司 | Differential screw fine adjusting device |
-
2012
- 2012-06-13 CN CN2012101937027A patent/CN102705463A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2809188A1 (en) * | 1978-03-03 | 1979-09-06 | Messerschmitt Boelkow Blohm | Coarse and fine adjustment mechanism - has component between springs of different characteristics and adjustably loaded |
| EP0311478A1 (en) * | 1987-10-08 | 1989-04-12 | Rockwell Automotive Body Systems-France En Abrege:Rockwell Abs-France | Overload-protected screw jack for an adjustable device such as a seat |
| US4846011A (en) * | 1988-02-29 | 1989-07-11 | Gaffney Edward J | Clutch assembly |
| CN2120921U (en) * | 1992-05-21 | 1992-11-04 | 柳日升 | Differential screw arbor chang drive device |
| DE60300831T2 (en) * | 2002-03-20 | 2006-04-27 | Transrol | Linear drive with thread rollers |
| WO2011045182A1 (en) * | 2009-10-16 | 2011-04-21 | Thales | Differential roller screw |
| CN102278360A (en) * | 2011-06-10 | 2011-12-14 | 淮阴工学院 | Constant-force self-locking differential screw fine-tuning device |
| CN202674207U (en) * | 2012-06-13 | 2013-01-16 | 天润曲轴股份有限公司 | Differential screw fine adjusting device |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104552436A (en) * | 2014-12-09 | 2015-04-29 | 北京工业大学 | Automatic punching machine for parts of electric vehicle |
| CN105114578A (en) * | 2015-07-28 | 2015-12-02 | 重庆长安汽车股份有限公司 | Quick high-precision micro-distance adjusting device |
| CN105115842A (en) * | 2015-09-21 | 2015-12-02 | 沈阳天星试验仪器有限公司 | Differential screw hardness measuring device |
| CN105115842B (en) * | 2015-09-21 | 2018-06-08 | 沈阳天星试验仪器有限公司 | Differential screw hardness measuring device |
| CN106271778A (en) * | 2016-09-29 | 2017-01-04 | 天津大学 | A kind of flexible distributing clamper for microsphere clamping Yu location |
| CN106972318A (en) * | 2017-04-07 | 2017-07-21 | 北京机械设备研究所 | A kind of pull-off plug passively pulls mechanism |
| CN109580156A (en) * | 2019-01-03 | 2019-04-05 | 成都中航华测科技有限公司 | A kind of fall-down test device that height is fine-tuning |
| CN110530737A (en) * | 2019-09-29 | 2019-12-03 | 天津津航计算技术研究所 | A kind of big moment of flexure loading device of rudderpost |
| CN114411832A (en) * | 2022-01-27 | 2022-04-29 | 天津大学 | Device for accurately controlling slow change of axial force of anchor rod in foundation pit model test |
| CN114411832B (en) * | 2022-01-27 | 2024-09-03 | 天津大学 | Device for accurately controlling slow change of axial force of anchor rod in foundation pit model test |
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Application publication date: 20121003 |