CN111306163A - Elastic positioning pin capable of self-locking - Google Patents
Elastic positioning pin capable of self-locking Download PDFInfo
- Publication number
- CN111306163A CN111306163A CN201910307823.1A CN201910307823A CN111306163A CN 111306163 A CN111306163 A CN 111306163A CN 201910307823 A CN201910307823 A CN 201910307823A CN 111306163 A CN111306163 A CN 111306163A
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- main pin
- pin
- self
- wall
- guide sleeve
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- 238000003825 pressing Methods 0.000 claims abstract description 32
- 229910000831 Steel Inorganic materials 0.000 claims description 22
- 239000010959 steel Substances 0.000 claims description 22
- 238000000034 method Methods 0.000 claims description 7
- 238000004519 manufacturing process Methods 0.000 description 8
- 238000009434 installation Methods 0.000 description 5
- 230000006835 compression Effects 0.000 description 4
- 238000007906 compression Methods 0.000 description 4
- 230000007547 defect Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000003754 machining Methods 0.000 description 3
- 230000002035 prolonged effect Effects 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
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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
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Insertion Pins And Rivets (AREA)
Abstract
A self-lockable resilient locating pin comprising: the main pin comprises a main pin head part and a main pin working part, wherein the main pin head part is provided with two adjusting holes, the main pin head part outside the adjusting holes is sleeved with a pressing sheet, the lower part of the main pin is provided with an anti-dropping structure, a plurality of holes are annularly distributed on the wall of the main pin, balls are placed in the holes, and the diameter of each ball is larger than the wall thickness of the main pin working part; the guide sleeve is sleeved on the outer wall of the middle part of the main pin, one end of the return spring is abutted against the pressing sheet, the other end of the return spring is abutted against the guide sleeve, and an outer ring groove is formed in the inner wall of the guide sleeve; the locking device comprises a locking rod and a self-locking spring, wherein the locking rod and the self-locking spring are arranged in a main pin, the lower end of the locking rod is abutted against the self-locking spring, the upper end of the locking rod is arranged at two waist-shaped holes through an elastic pin, two ends of the elastic pin are arranged in mounting holes in a pressing sheet, and an inner ring groove is formed in the surface of the locking rod. The invention can be applied to the environment with large size change of the positioned workpiece and large size deviation of the distance positioning surface, and can complete quick positioning.
Description
Technical Field
The invention relates to a workpiece positioning and quick separating device, in particular to an elastic positioning pin capable of self-locking.
Background
At present, in the workpiece positioning requirement that the workpiece can be quickly positioned and quickly separated, a conical head cylindrical positioning pin is usually adopted. Due to the popularization of modern automated production, mixed flow production has become a normal state. The positioning requirements of workpieces with different sizes are met on the same production line, one size corresponds to the positioning pin with one length, the more parts are, the more required specifications of the positioning pin are, the more parts are required to be replaced in use, the production cost is increased, and meanwhile, the field management difficulty is increased.
Taking automobile assembly production as an example, at present, all brands adopt assembly workshop flexible multi-vehicle type mixed flow production, and because the vehicle types comprise total and medium-sized SUVs, compact SUVs, medium-sized cars, sports cars and the like with different sizes and large structural difference of vehicle type chassis, the positioning holes of the currently produced bearing type vehicle body structure are usually arranged on a bearing steel beam at the bottom of the vehicle body. The height difference of front and rear positioning holes is different due to different vehicle types; the bearing steel beam is provided with a vehicle body bottom plate, and the vehicle body bottom plate needs to ensure waterproof sealing and cannot be provided with a through hole. In the final assembly process, the lifting appliance needs to adopt positioning pins of various specifications to be matched with the automobile bodies of different automobile types for positioning, so that when different automobile types are produced, the automobile types need to be checked, and pins with corresponding sizes need to be replaced independently. This operation is time-consuming and labor-consuming, increasing management costs.
Disclosure of Invention
The invention aims to overcome the defects in the prior art and provide the self-locking elastic positioning pin which is simple and reliable in structure, stable in action, convenient to disassemble and assemble, free of damage to a positioning workpiece and an installation part and capable of completing disassembling and assembling operations by hands without any tools.
The technical scheme of the invention is as follows: the method comprises the following steps: the main pin comprises a main pin head part and a main pin working part, wherein the main pin head part is provided with two adjusting holes, the main pin head part outside the adjusting holes is sleeved with a pressing sheet, the lower part of the main pin is provided with an anti-dropping structure, a plurality of holes are annularly distributed on the wall of the main pin, balls are placed in the holes, and the diameter of each ball is larger than the wall thickness of the main pin working part; the guide sleeve is sleeved on the outer wall of the middle part of the main pin, one end of the return spring abuts against the pressing sheet, the other end of the return spring abuts against the guide sleeve, and the inner wall of the guide sleeve is provided with an outer ring groove for containing the ball positioning guide sleeve when the locking rod keeps the top position under the action of the self-locking spring; the locking device comprises a locking rod and a self-locking spring, wherein the locking rod and the self-locking spring are arranged in a main pin, the lower end of the locking rod is abutted against the self-locking spring, the upper end of the locking rod is arranged at two waist-shaped holes through an elastic pin, two ends of the elastic pin are arranged in mounting holes in a pressing sheet, and an inner annular groove used for containing a ball to enable a guide sleeve to slide up and down along the outer wall of the main pin is arranged on the. The elastic pin can prevent the elastic pin from falling off from the mounting hole due to vibration in the use process. When the head of the main pin contacts the surface of the positioning workpiece, if the position of the positioning hole of the positioning workpiece deviates, the upper main pin does not enter the positioning hole. The locking rod keeps the top position under the action of the self-locking spring. The steel ball is pushed to the outer ring groove along the radial direction by the cylindrical surface of the locking rod. The steel ball is clamped in the outer ring groove, so that the upper main pin and the lower main pin are axially positioned, and the main pin is prevented from moving downwards.
The sum of the depth of the outer ring groove and the wall thickness of the working part of the kingpin is larger than or equal to the diameter of the ball, and the sum of the depth of the inner ring groove and the wall thickness of the working part of the kingpin is larger than or equal to the diameter of the ball.
And a circle of flange for preventing the return spring from moving radially is arranged on the outer wall of the main pin close to the lower end of the kidney-shaped hole, and the upper part of the return spring is sleeved on the flange.
The locking rod is of a stepped structure with a thin middle part and thick two ends, and the two ends of the locking rod are matched with the shape of the inner cavity of the main pin.
The outer wall of the main pin close to the anti-drop pin is sleeved with a flat gasket matched with the guide sleeve. The flat gasket has the following functions: when the device is installed on a lifting appliance, the flat gasket is installed between the D-shaped anti-falling pin and the lower surface of the lifting appliance, the guide sleeve is fixed in the installation hole of the lifting appliance through the external steps of the guide sleeve and the upper and lower positioning action of the flat gasket, meanwhile, the abrasion of the D-shaped anti-falling pin can be reduced, and the service life is prolonged.
The guide sleeve is of a stepped sleeve structure, the lower portion of the return spring is sleeved on the outer wall of the upper end of the guide sleeve, a positioning flange which abuts against the lower end of the return spring is arranged on the outer wall of the guide sleeve, and the inner wall of the guide sleeve is matched with the outer wall of the main pin working portion in shape. The stepped sleeve structure is convenient to mount with a mounting hole of a lifting appliance, and meanwhile, the radial positioning effect of the return spring is increased.
The main pin is of a cylindrical structure and comprises a main pin head part and a main pin working part, wherein the main pin head part is a conical head and a cylindrical barrel head connected with the conical head. The thickness of the head wall of the king pin is determined by the size of the positioning hole of the part, and the thickness of the head wall of the king pin is = (diameter of the positioning hole on the part-diameter of the inner hole of the king pin)/2, because the outer diameter of the inner locking rod determines the size of the inner hole of the king pin.
The adjusting hole is a kidney-shaped hole, the length of the kidney-shaped hole is larger than or equal to the diameter of the steel ball and the diameter of the mounting hole in the pressing sheet, the length of the adjusting hole = the radius of the two semicircles and the distance between the centers of the two semicircles, the distance between the centers of the two semicircles = the diameter of the steel ball, the stroke of the locking rod corresponds to the length of the kidney-shaped hole, the stroke of the locking rod is increased, and the problem of unstable locking caused by machining; the width of the waist-shaped hole is larger than or equal to the diameter of the mounting hole on the pressing sheet, so that the problem of interference of action jamming caused by machining errors of the pressing sheet and the center position of the mounting hole on the locking rod is solved.
The preforming is cylindrical structure, and the mounting hole radially sets up along the preforming, and the distance of mounting hole axis above the preforming is greater than the distance below the mounting hole axis apart from the preforming. The upper surface of the pressing sheet is in contact with the vehicle body and is easy to wear, and the mounting hole is formed in the position, close to the lower part, of the pressing sheet, so that the service life of the pressing sheet is prolonged.
The ball is a steel ball; the anti-disengaging structure is a D-shaped anti-disengaging pin.
The invention overcomes the defects that the elastic positioning pin with a telescopic function is adopted, although the positioning requirements of products with a plurality of specifications can be compatible, the pin falling deviation (poor insertion of the pin and the hole) can not be found in time during the use due to the defect that the elastic positioning pin is not positionable, the positioning is poor, and the workpiece deviation occurs. The invention can be applied to the environment with large size change of the positioned workpiece and large size deviation of the distance positioning surface, and can complete quick positioning. The invention has simple and reliable structure, stable action and convenient disassembly and assembly, does not have any damage to the positioning workpiece and the installation part, and can complete the disassembly and assembly operation by hand without any tool.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a cross-sectional view of the present invention;
FIG. 3 is an enlarged view of a portion of FIG. 2;
FIG. 4 is a schematic structural view of a kingpin;
FIG. 5 is a self-locking state view of the present invention;
FIG. 6 is an enlarged view of section I of FIG. 5;
FIG. 7 is a comparison of three states during use of the present invention;
in the figure, 1, a main pin, 2, a pressing sheet, 3, a return spring, 4, a guide sleeve, 5, a flat gasket, 6, a D-shaped anti-falling pin, 7, a self-locking spring, 8, a steel ball, 9, a locking rod, 10, an elastic pin, 11, a first step, 12, an upper main pin, 13, a middle main pin, 14, a lower main pin, 15, an outer ring groove, 16, an inner ring groove, 17, a vehicle body bottom plate, 18 and a lifting appliance are arranged.
Detailed Description
In the figures 1, 2 and 3, the invention comprises a hollow main pin 1, the upper part of the main pin 1 extends outwards horizontally to form a flange for fixing a return spring 3, and the outer wall of the lower part of the main pin 1 is provided with an annular equipartition round hole for embedding a steel ball 8 along the circumferential direction. The flange and the annular sharing round hole divide the main pin 1 into an upper main pin 12, a middle main pin 13 and a lower main pin 14 from top to bottom. The lower main pin 14 is cylindrical, a first through hole for the D-shaped anti-drop pin 6 to pass through is formed in the bottom end of the lower main pin 14, and a flat gasket 5 is sleeved outside the bottom end of the lower main pin 14. The outer wall cover of lower king pin 14, well king pin 13 has uide bushing 4, and D type anticreep round pin 6 is used to king pin 1 afterbody, can play the anticreep effect in use, and the while is dismantling the installation in-process, bare-handed just can accomplish. The bottom end of the guide sleeve 4 is fixedly connected with the flat gasket 5, and the height of the guide sleeve 4 is higher than that of the top end of the annular equal-dividing round hole. A first V-shaped ring groove 15 is formed in the contact position of the inner wall of the guide sleeve 4 and the annular equal-dividing round hole, and the diameter of the outer wall of the guide sleeve 4 is decreased progressively to form a first annular step 11 and a second annular step. The outer wall of the guide sleeve 4 is in a stepped shaft form, and the diameter size of the guide sleeve is gradually increased along the installation direction, so that the lifting appliance is conveniently installed in a lifting appliance 18 hole. The upper kingpin 12 is conical and the diameter of the upper kingpin 12 is greater than the diameter of the middle kingpin 13. The locking rod 9 is arranged in the main pin 1 and is connected with the main pin 1 in a sliding way. The pressing sheet 2 is sleeved outside the upper main pin 12, and the top of the locking rod 9 is fixedly connected with the pressing sheet 2 through the elastic pin 10. The bottom end of the locking rod 9 and the lower main pin 14 form a cavity, and a self-locking spring 7 is arranged in the cavity. One end of the self-locking spring 7 is fixedly connected with the D-shaped anti-falling pin 6, and the other end of the self-locking spring is fixedly connected with the lower plane of the locking rod 9. The locking rod 9 is symmetrically provided with an inner ring groove 16 which has the same shape and size as the outer ring groove 15. The return spring 3 is sleeved outside the main pin 1, the bottom end of the return spring 3 is fixedly connected with the upper plane of the first step 11, and the top end of the return spring 3 is fixedly connected with the lower plane of the pressing sheet 2. The lower plane of the flat gasket 5 is flush with the upper plane of the first through hole. The upper main pin 12 is correspondingly provided with a kidney-shaped hole for the elastic pin 10 to pass through, and the top of the locking rod 9 is provided with a second through hole for the elastic pin 10 to pass through. The cross sections of the middle main pin 13 and the lower main pin 14 are the same in diameter and the side wall thickness. The upper main pin 12, the middle main pin 13, the lower main pin 14, the locking rod 9 and the guide sleeve 4 are on the same central line. The height H of the blocking lever 9 is greater than the height H of the king pin 13.
In fig. 4, the main pin 1 is of a hollow structure, the upper part of the main pin 1 extends outwards horizontally to form a flange, and the outer wall of the lower part of the main pin 1 is provided with an annular uniform round hole for embedding the steel ball 8 along the circumferential direction. The flange and the annular sharing round hole divide the main pin 1 into an upper main pin 12, a middle main pin 13 and a lower main pin 14 from top to bottom. The lower main pin 14 is cylindrical, and the bottom end of the lower main pin 14 is provided with a first through hole for the D-shaped anti-drop pin 6 to pass through. The center kingpin 13 is cylindrical. The upper kingpin 12 comprises a conical, cylindrical shape connected to the conical shape, the diameter of the upper kingpin 12 being greater than the diameter of the middle kingpin 13. The upper main pin 12 is correspondingly provided with a kidney-shaped hole for the elastic pin 10 to pass through. The length L1 of the kidney-shaped hole = the diameter of the steel ball 8 + the diameter of the mounting hole on the pressure plate 2. The length L1 of the adjusting hole = the radius of the two semicircles + the distance between the centers of the two semicircles, and the distance between the centers of the two semicircles = the diameter of the steel ball 8.
In fig. 5 and 6, the groove depth of the outer ring groove 15 is a, the groove width at the widest part is B, the side wall thickness of the center pin 13 is C, the diameter of the steel ball 8 is R, B < R, and a + C > R. The diameter of the annular uniform circular hole is D, and D = R. In the self-locking state, a car body is clamped by a lifting appliance 18, the head of a main pin 1 contacts the surface of a car body bottom plate 17, if the main pin 1 does not enter a positioning hole due to the position deviation of the positioning hole of the car body bottom plate 17, a locking rod 9 keeps a jacking position under the action of a self-locking spring 7. The steel ball 8 is pushed to the outer ring groove 15 along the radial direction by the cylindrical surface of the locking rod 9, the steel ball 8 is clamped in the outer ring groove 15, the main pin 1 is axially positioned, the main pin 1 is prevented from moving downwards, a position sensor on a production line cannot detect a car body and send an alarm, and a car body bottom plate 17 is found to be unsuccessfully positioned, so that the situation that the car body is not clamped in place when the car body flows to the next working procedure along the production line to be machined is prevented, and error machining is caused.
FIG. 7 is a comparison diagram of three states of "successful access, self-locking release and compression limit" when the present invention contacts the positioning hole of the vehicle body, wherein H1 is the release stroke, and H2 is the full stroke capable of effective positioning.
In use, the spring pin of the present invention has achieved a locating function starting from the cylindrical region of the kingpin 1 entering the locating hole. From the pin hole locating, self-locking releasing and elastic limit position, the full-stroke return spring 3 is always kept in a compressed state, and the full-stroke elastic effect can be realized.
When the upper main pin 12 enters the positioning hole, the return spring 3 is in a pre-compression state 3A, along with the increase of the depth, the underbody 17 contacts the pressing sheet 2 and enables the pressing sheet to move downwards in the kidney-shaped hole along the axial direction of the main pin 1H 1, the return spring 3 is in a self-locking release compression state 3B, the steel ball 8 falls into the inner annular groove 16 through the simultaneous movement of the elastic pin 10 and the locking rod 9, the steel ball 8 between the main pin 1 and the guide sleeve 4 is separated at the moment, the main pin 1 can freely move in the stroke range of the return spring 3, and 3C is in an elastic limit state of the return spring 3. The extension and retraction of the return spring 3 can realize the accurate positioning of the underbody 17 and keep the contact surface of the underbody 17 close.
When the positioning is finished, when the underbody 17 leaves the device, under the thrust action of the return spring 3, the guide sleeve 4 is pushed downwards to abut against the upper surface of the lifting appliance 18, the return spring 3 can push the pressing piece 2 upwards at the same time, then the self-locking spring 7 pushes the locking rod 9 and the pressing piece 2 upwards, and the pressing piece 2 is directly pushed upwards by the return spring 3; the self-locking spring 7 pushes the locking rod 9, the locking rod 9 drives the elastic pin 10, and the elastic pin 10 drives the pressing sheet 2, so that indirect upward pushing is realized, the steel ball 8 is clamped into the inner annular groove 15 on the guide sleeve 4, and the return and self-locking states are finished. When the self-locking type spring is not used, namely in a self-locking state, the return spring 3 is in a pre-compression state of the spring, the spring is compressed by about 5 percent, and certain pre-tightening force is provided. When the steel ball 8 returns to the self-locking state, the pressing sheet 2 finishes the process that the steel ball 8 enters the inner ring groove 15 under the simultaneous action of the return spring 3 and the self-locking spring 7.
Claims (10)
1. The utility model provides an elastic positioning pin that can auto-lock which characterized in that: the method comprises the following steps:
the main pin comprises a hollow main pin (1), wherein the main pin (1) comprises a head part of the main pin (1) and a main pin working part, the head part of the main pin (1) is provided with two adjusting holes, the head part of the main pin (1) outside the adjusting holes is sleeved with a pressing sheet (2), the lower part of the main pin (1) is provided with an anti-falling structure, a plurality of holes are annularly distributed on the wall of the main pin (1), balls (8) are arranged in the holes, and the diameter of each ball (8) is greater than the wall thickness of the main pin working part;
the guide sleeve (4) is sleeved on the outer wall of the middle part of the main pin (1), one end of the return spring (3) abuts against the pressing sheet (2), the other end of the return spring (3) abuts against the guide sleeve (4), and an outer annular groove (15) for containing a ball (8) to position the guide sleeve (4) when the locking rod (9) keeps the top position under the action of the self-locking spring (7) is arranged on the inner wall of the guide sleeve (4);
the locking mechanism comprises a locking rod (9) and a self-locking spring (7) which are arranged in a main pin (1), wherein the lower end of the locking rod (9) is abutted against the self-locking spring (7), the upper end of the locking rod (9) is arranged at two waist-shaped holes through an elastic pin (10), two ends of the elastic pin (10) are arranged in mounting holes in a pressing sheet (2), and an inner annular groove (16) which is used for containing a ball (8) to enable a guide sleeve (4) to slide up and down along the outer wall of the main pin (1) is arranged on the surface of the locking rod (9).
2. The self-lockable resilient locating pin according to claim 1, characterized in that: the sum of the depth of the outer annular groove (15) and the wall thickness of the main pin working part is larger than or equal to the diameter of the ball (8), and the sum of the depth of the inner annular groove (16) and the wall thickness of the main pin working part is larger than or equal to the diameter of the ball (8).
3. The self-lockable resilient locating pin according to claim 1, characterized in that: the outer wall of the main pin (1) close to the lower end of the kidney-shaped hole is provided with a circle of flange used for preventing the return spring (3) from moving radially, and the upper part of the return spring (3) is sleeved on the flange.
4. The self-lockable resilient locating pin according to claim 1, characterized in that: the locking rod (9) is of a stepped structure with a thin middle part and thick two ends, and the two ends of the locking rod (9) are matched with the shape of the inner cavity of the main pin (1).
5. The self-lockable resilient locating pin according to claim 1, characterized in that: the outer wall of the main pin (1) close to the anti-drop pin (6) is sleeved with a flat gasket (5) matched with the guide sleeve (4).
6. The self-lockable resilient locating pin according to claim 1, characterized in that: the guide sleeve (4) is of a stepped sleeve structure, the lower portion of the return spring (3) is sleeved on the outer wall of the upper end of the guide sleeve (4), a positioning flange which abuts against the lower end of the return spring (3) is arranged on the outer wall of the guide sleeve, and the inner wall of the guide sleeve (4) is matched with the outer wall of the main pin working portion in shape.
7. The self-lockable resilient locating pin according to claim 1, characterized in that: the main pin (1) is of a cylindrical structure and comprises a head part of the main pin (1) and a main pin working part, wherein the head part of the main pin (1) is a conical head and is connected with the conical head to form a cylindrical barrel head.
8. The self-lockable resilient locating pin according to claim 1, characterized in that: the adjusting hole is a waist-shaped hole, and the length of the waist-shaped hole is more than or equal to the diameter of the steel ball (8) plus the diameter of the mounting hole on the pressing sheet (2); the width of the waist-shaped hole is more than or equal to the diameter of the mounting hole on the pressing sheet (2).
9. The self-lockable resilient locating pin according to claim 1, characterized in that: the pressing sheet (2) is of a cylindrical structure, the mounting hole is radially arranged along the pressing sheet (2), and the distance from the axis of the mounting hole to the upper surface of the pressing sheet (2) is greater than the distance from the axis of the mounting hole to the lower surface of the pressing sheet (2).
10. The self-lockable resilient locating pin according to claim 1, characterized in that: the ball (8) is a steel ball; the anti-disengaging structure is a D-shaped anti-disengaging pin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910307823.1A CN111306163A (en) | 2019-04-17 | 2019-04-17 | Elastic positioning pin capable of self-locking |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910307823.1A CN111306163A (en) | 2019-04-17 | 2019-04-17 | Elastic positioning pin capable of self-locking |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111306163A true CN111306163A (en) | 2020-06-19 |
Family
ID=71144771
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910307823.1A Pending CN111306163A (en) | 2019-04-17 | 2019-04-17 | Elastic positioning pin capable of self-locking |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111306163A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112648950A (en) * | 2020-12-18 | 2021-04-13 | 陕西法士特汽车传动集团有限责任公司 | Quick positioning and clamping fixture for three-coordinate detection |
| EP4215764A1 (en) * | 2022-01-20 | 2023-07-26 | Audi AG | Fixation system |
-
2019
- 2019-04-17 CN CN201910307823.1A patent/CN111306163A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112648950A (en) * | 2020-12-18 | 2021-04-13 | 陕西法士特汽车传动集团有限责任公司 | Quick positioning and clamping fixture for three-coordinate detection |
| EP4215764A1 (en) * | 2022-01-20 | 2023-07-26 | Audi AG | Fixation system |
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