CN109578408B - Quick-change eccentric pin structure - Google Patents
Quick-change eccentric pin structure Download PDFInfo
- Publication number
- CN109578408B CN109578408B CN201811540108.4A CN201811540108A CN109578408B CN 109578408 B CN109578408 B CN 109578408B CN 201811540108 A CN201811540108 A CN 201811540108A CN 109578408 B CN109578408 B CN 109578408B
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- Prior art keywords
- eccentric pin
- positioning
- pin seat
- eccentric
- seat
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- 230000000694 effects Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B19/00—Bolts without screw-thread; Pins, including deformable elements; Rivets
- F16B19/02—Bolts or sleeves for positioning of machine parts, e.g. notched taper pins, fitting pins, sleeves, eccentric positioning rings
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B11/00—Work holders not covered by any preceding group in the subclass, e.g. magnetic work holders, vacuum work holders
- B25B11/02—Assembly jigs
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Insertion Pins And Rivets (AREA)
Abstract
The invention belongs to the technical field of tool clamps, and relates to a quick-change eccentric pin structure, which comprises an eccentric pin seat supporting block, wherein a U-shaped groove is formed in the eccentric pin seat supporting block, an eccentric pin seat is matched in the U-shaped groove, an eccentric pin is rotationally arranged in a vertical hole of the eccentric pin seat, the upper end of the eccentric pin is provided with a positioning and pressing part, the positioning and pressing part is of an eccentric structure, a horizontal positioning mechanism for positioning the eccentric pin seat in the horizontal direction and a vertical positioning mechanism for positioning the eccentric pin seat in the vertical direction are further arranged on the eccentric pin seat supporting block, the horizontal positioning mechanism is matched with a positioning hole in the eccentric pin seat, and the upper part and the lower part of the eccentric pin seat are matched with the vertical positioning mechanism to realize horizontal and vertical positioning. The eccentric pin structure can realize the quick replacement of the eccentric pin, and is quick and convenient to operate.
Description
Technical Field
The invention belongs to the technical field of tool clamps, and relates to a quick-change eccentric pin structure.
Background
The positioning of the automobile body on the automobile assembly line is a problem which needs to be considered, and the automobile body is convenient to detach in order to realize reliable positioning and fixing of the automobile body and switching production of different automobile types. At present, a positioning pin is generally used for positioning and fixing a vehicle body, positioning is reliable and convenient, but the existing positioning pin has a problem when reliably positioning the vehicle body, namely, the positioning pin cannot be used for positioning and fixing the vehicle body in general use of different vehicle types, namely, the positioning pin cannot be conveniently and effectively replaced.
Disclosure of Invention
The invention aims at the problems and provides a quick-change eccentric pin structure which can realize quick replacement of an eccentric pin and is quick and convenient to operate.
According to the technical scheme of the invention: the utility model provides a quick change eccentric pin structure, its characterized in that, includes eccentric pin seat supporting shoe, be equipped with U type groove on the eccentric pin seat supporting shoe, the cooperation sets up eccentric pin seat in the U type groove, rotate in the vertical hole of eccentric pin seat and set up eccentric pin, the upper end of eccentric pin is equipped with location clamping part, and location clamping part is eccentric structure, be used for also on the eccentric pin seat supporting shoe to eccentric pin seat horizontal direction location's horizontal positioning mechanism and be used for to eccentric pin seat vertical direction location's vertical positioning mechanism, wherein horizontal positioning mechanism cooperatees with the locating hole on the eccentric pin seat, and eccentric pin seat's upper portion, lower part and vertical positioning mechanism cooperate, realize horizontal and vertical direction location.
As a further improvement of the invention, the eccentric pin seat is connected with the ball plunger in a threaded manner, the circumferential surface of the eccentric pin is provided with a positioning groove, and the ball plunger extends into the positioning groove.
As a further improvement of the invention, the lower part of the eccentric pin extends out of the eccentric pin seat, and the pin body of the eccentric pin extending out of the eccentric pin seat is fixedly connected with the eccentric pin rotating spanner.
As a further improvement of the invention, the horizontal positioning mechanism comprises a sleeve arranged on the eccentric pin seat supporting block and corresponding to the U-shaped groove, a positioning pin is arranged in the sleeve in a sliding fit manner, a spring is sleeved on the positioning pin, the inner end of the spring is limited by a boss integrally connected with the positioning pin, and the other end of the spring is limited by a sleeve step arranged on the sleeve.
As a further improvement of the invention, the outer end of the positioning pin is provided with an operating ball head, the positioning pin is also provided with a radially extending elastic cylindrical pin, and the elastic cylindrical pin is arranged in a guide groove arranged on the sleeve to realize the sealing of the spring in the sleeve.
As a further improvement of the invention, the vertical positioning mechanism comprises an upper step arranged at the upper end of the U-shaped groove and a lower step arranged at the lower end of the U-shaped groove, the upper flange of the eccentric pin seat is tightly pressed on the upper surface of the upper step, and the lower flange of the eccentric pin seat is abutted against the bottom surface of the lower step.
The invention has the technical effects that: the invention has ingenious and reasonable design, is limited by applicable vehicles in the existing locating pins, and cannot be developed and designed according to the requirements of the locating pins for adaptively replacing the locating pins of different vehicle types, so that the locating pins can be quickly and effectively replaced according to the requirements of the vehicle body, and the use requirements of the vehicle bodies with various specifications and models can be met.
Drawings
Fig. 1 is a front view of the present invention.
Fig. 2 is a left side view of the present invention.
Fig. 3 is a top view of the present invention.
Fig. 4 is a perspective view of the present invention.
Detailed Description
The following describes the embodiments of the present invention further with reference to the drawings.
In fig. 1 to 4, the eccentric pin seat support block comprises an eccentric pin seat support block 1, a U-shaped groove 2, an upper step 3, a lower step 4, an eccentric pin rotating wrench 5, a sleeve 6, a sleeve step 6-1, a positioning pin 7, a protruding part 7-1, an eccentric pin seat 8, an eccentric pin 9, a positioning pressing part 9-1, a ball plunger 10, a spring 11, a positioning groove 12, an elastic cylindrical pin 13 and the like.
As shown in figures 1-4, the quick-change eccentric pin structure comprises an eccentric pin seat supporting block 1, wherein a U-shaped groove 2 is arranged on the eccentric pin seat supporting block 1, an eccentric pin seat 8 is matched in the U-shaped groove 2, an eccentric pin 9 is rotatably arranged in a vertical hole of the eccentric pin seat 8, the eccentric pin 9 is rotatably arranged on the eccentric pin seat 8 and is required to be limited in a horizontal rotation direction, so that the eccentric pin 9 is prevented from distinguishing an operating state from a non-operating state. When the ball plunger 10 is not in the positioning groove 12, the ball plunger is in an unstable state, and the horizontal rotation cannot be limited. The rotary positioning groove 12 is preferably an annular circular arc groove.
In order to avoid the eccentric pin seat 8 to rotate in the U-shaped groove 2, when the eccentric pin seat is specifically arranged, two sides of the U-shaped groove 2 are milled flat, meanwhile, the outer shape of the eccentric pin seat 8 is a cylinder with 180-degree intervals, two sides of the eccentric pin seat are milled flat, the structure is effectively matched with the U-shaped groove 2, when the eccentric pin seat 8 is replaced according to the use condition, the replaced eccentric pin seat 8 is placed in the U-shaped groove 2 and pushed to the bottom of the groove, and the eccentric pin seat 8 can be effectively positioned through a horizontal positioning mechanism.
The upper end of the eccentric pin 9 is provided with a positioning and pressing part 9-1, the positioning and pressing part 9-1 is of an eccentric structure, and when the vehicle body is in operation, the pressing part 9-1 is pressed on the vehicle body by rotating the eccentric pin 9, so that effective pressing operation is realized.
The eccentric pin seat supporting block 1 is also provided with a horizontal positioning mechanism for positioning the eccentric pin seat 8 in the horizontal direction and a vertical positioning mechanism for positioning the eccentric pin seat 8 in the vertical direction, wherein the horizontal positioning mechanism is matched with a positioning hole on the eccentric pin seat 8, and the upper part and the lower part of the eccentric pin seat 8 are matched with the vertical positioning mechanism to realize horizontal and vertical positioning.
In order to realize effective positioning of the eccentric pin seat 8 in the horizontal direction, the horizontal positioning mechanism adopts a structure comprising a sleeve (6) arranged on the eccentric pin seat supporting block 1 and corresponding to the U-shaped groove 2, a positioning pin 7 is arranged in the sleeve 6 in a sliding fit manner, a spring 11 is sleeved on the positioning pin 7, the inner end of the spring 11 is limited by a boss 7-1 integrally connected with the positioning pin 7, and the other end of the spring 11 is limited by a sleeve step 6-1 arranged on the sleeve 6.
The outer end of the locating pin 7 is provided with an operating ball head, the locating pin 7 is also provided with an elastic cylindrical pin 13 which extends radially, and the elastic cylindrical pin 13 is arranged in a guide groove formed in the sleeve 6, so that the spring 11 is sealed in the sleeve 6.
In order to realize effective positioning of the eccentric pin seat 8 in the vertical direction, the vertical positioning mechanism in the product adopts the following structure: the eccentric pin seat comprises an upper step 3 arranged at the upper end of the U-shaped groove 2 and a lower step 4 arranged at the lower end of the U-shaped groove 2, wherein an upper flange of the eccentric pin seat 8 is tightly pressed on the upper surface of the upper step 3, and a lower flange of the eccentric pin seat 8 is attached to the bottom surface of the lower step 4.
The lower part of the eccentric pin 9 extends out of the eccentric pin seat 8, the pin body of the eccentric pin 9 extending out of the eccentric pin seat 8 is fixedly connected with the eccentric pin rotating spanner 5, and when the eccentric pin rotating spanner 5 is rotated during use, the rotation adjustment of the eccentric pin 9 is realized, so that the eccentric pin 9 can effectively press a vehicle body.
Claims (3)
1. The quick-change eccentric pin structure is characterized by comprising an eccentric pin seat supporting block (1), wherein a U-shaped groove (2) is formed in the eccentric pin seat supporting block (1), an eccentric pin seat (8) is matched in the U-shaped groove (2), an eccentric pin (9) is rotationally arranged in a vertical hole of the eccentric pin seat (8), a positioning and pressing part (9-1) is arranged at the upper end of the eccentric pin (9), the positioning and pressing part (9-1) is of an eccentric structure, a horizontal positioning mechanism for positioning the eccentric pin seat (8) in the horizontal direction and a vertical positioning mechanism for positioning the eccentric pin seat (8) in the vertical direction are further arranged on the eccentric pin seat supporting block (1), the horizontal positioning mechanism is matched with a positioning hole in the eccentric pin seat (8), and the upper part and the lower part of the eccentric pin seat (8) are matched with the vertical positioning mechanism to realize horizontal and vertical positioning;
the eccentric pin seat (8) is connected with a ball plunger (10) in a threaded manner, two positioning grooves (12) are formed in the circumferential surface of the eccentric pin (9) at intervals of 180 degrees, and the ball plunger (10) stretches into the positioning grooves (12);
the horizontal positioning mechanism comprises a sleeve (6) arranged on the eccentric pin seat supporting block (1) and corresponding to the U-shaped groove (2), a positioning pin (7) is arranged in the sleeve (6) in a sliding fit manner, a spring (11) is sleeved on the positioning pin (7), the inner end of the spring (11) is limited through a boss (7-1) integrally connected with the positioning pin (7), and the other end of the spring (11) is limited through a sleeve step (6-1) arranged on the sleeve (6);
the vertical positioning mechanism comprises an upper step (3) arranged at the upper end of the U-shaped groove (2) and a lower step (4) arranged at the lower end of the U-shaped groove (2), wherein an upper flange of the eccentric pin seat (8) is tightly pressed on the upper surface of the upper step (3), and a lower flange of the eccentric pin seat (8) is attached to the bottom surface of the lower step (4).
2. The quick change eccentric pin structure of claim 1, wherein: the lower part of the eccentric pin (9) extends out of the eccentric pin seat (8), and the pin body of the eccentric pin (9) extending out of the eccentric pin seat (8) is fixedly connected with the eccentric pin rotating wrench (5).
3. The quick change eccentric pin structure of claim 1, wherein: the outer end of the locating pin (7) is provided with an operating ball head, the locating pin (7) is also provided with a radially extending elastic cylindrical pin (13), and the elastic cylindrical pin (13) is arranged in a guide groove formed in the sleeve (6) to seal the spring (11) in the sleeve (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811540108.4A CN109578408B (en) | 2018-12-17 | 2018-12-17 | Quick-change eccentric pin structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811540108.4A CN109578408B (en) | 2018-12-17 | 2018-12-17 | Quick-change eccentric pin structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109578408A CN109578408A (en) | 2019-04-05 |
| CN109578408B true CN109578408B (en) | 2024-04-02 |
Family
ID=65930341
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811540108.4A Active CN109578408B (en) | 2018-12-17 | 2018-12-17 | Quick-change eccentric pin structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109578408B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114310102B (en) * | 2021-12-02 | 2024-05-10 | 上海宝钢阿赛洛激光拼焊有限公司 | Welding electromagnet positioning device with workpiece fine-tuning mechanism |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102909579A (en) * | 2011-08-01 | 2013-02-06 | 天津市中马骏腾精密机械制造有限公司 | Eccentric clamping fixture |
| CN203463444U (en) * | 2013-08-20 | 2014-03-05 | 沈阳透平机械股份有限公司 | Base positioning pin capable of adjusting mounting gap |
| CN204164118U (en) * | 2014-07-28 | 2015-02-18 | 中国汽车工业工程有限公司 | A kind of eccentric locking mechanism for vehicle body lifting appliance |
| CN106763061A (en) * | 2016-12-29 | 2017-05-31 | 江苏省无锡探矿机械总厂有限公司 | Quick pins |
| CN107877420A (en) * | 2017-12-09 | 2018-04-06 | 无锡特恒科技有限公司 | Elastic taper pin positioning mechanism |
| CN107956772A (en) * | 2017-12-28 | 2018-04-24 | 东风商用车有限公司 | Eccentric pin structure |
| CN209604386U (en) * | 2018-12-17 | 2019-11-08 | 天奇自动化工程股份有限公司 | Quick change eccentric pin structure |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3704320B2 (en) * | 2002-03-18 | 2005-10-12 | 株式会社日研工作所 | Tool holder |
-
2018
- 2018-12-17 CN CN201811540108.4A patent/CN109578408B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102909579A (en) * | 2011-08-01 | 2013-02-06 | 天津市中马骏腾精密机械制造有限公司 | Eccentric clamping fixture |
| CN203463444U (en) * | 2013-08-20 | 2014-03-05 | 沈阳透平机械股份有限公司 | Base positioning pin capable of adjusting mounting gap |
| CN204164118U (en) * | 2014-07-28 | 2015-02-18 | 中国汽车工业工程有限公司 | A kind of eccentric locking mechanism for vehicle body lifting appliance |
| CN106763061A (en) * | 2016-12-29 | 2017-05-31 | 江苏省无锡探矿机械总厂有限公司 | Quick pins |
| CN107877420A (en) * | 2017-12-09 | 2018-04-06 | 无锡特恒科技有限公司 | Elastic taper pin positioning mechanism |
| CN107956772A (en) * | 2017-12-28 | 2018-04-24 | 东风商用车有限公司 | Eccentric pin structure |
| CN209604386U (en) * | 2018-12-17 | 2019-11-08 | 天奇自动化工程股份有限公司 | Quick change eccentric pin structure |
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| Publication number | Publication date |
|---|---|
| CN109578408A (en) | 2019-04-05 |
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