CN217475220U - Diamond telescopic pin mechanism - Google Patents
Diamond telescopic pin mechanism Download PDFInfo
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- CN217475220U CN217475220U CN202221368279.5U CN202221368279U CN217475220U CN 217475220 U CN217475220 U CN 217475220U CN 202221368279 U CN202221368279 U CN 202221368279U CN 217475220 U CN217475220 U CN 217475220U
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- wall
- stabilizing sleeve
- installation axle
- spacing
- support
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Abstract
The utility model relates to an automobile manufacturing technical field especially involves a rhombus telescopic pin mechanism, including cylinder and support, the support middle part is provided with and holds the chamber, still including fixing the telescopic pin subassembly of support one end, telescopic pin subassembly includes rhombus locating pin, installation axle, first stable cover and the stable cover of second, the one end of installation axle with rhombus locating pin fixed connection, the other end with the output shaft fixed connection of cylinder, just the installation axle runs through hold the chamber. The utility model discloses a set up first stable cover and the stable cover of second for under the condition of long stroke, the installation axle can receive the support, thereby has promoted the stability of installation axle, has promoted the location and the fixed degree of accuracy of rhombus locating pin.
Description
Technical Field
The utility model relates to an automobile manufacturing technical field especially involves a rhombus telescopic pin mechanism.
Background
At present, the automobile manufacturing industry in China is rapidly developing and gradually becomes one of the post industries in China. In the automobile manufacturing process, the automobile body production is a relatively important link, and the key process is the automobile body welding. To weld the various body parts together, a clamp must be present to fix the part position. Therefore, the clamp is an important auxiliary tool, and the reasonability of the clamp not only affects the accuracy of a processing position and the welding quality, but also affects the working efficiency and the production cost. One common fixture is a positioning pin, which passes through a hole on a part to position and fix the part.
However, sometimes the pin needs to make a long stroke to reach the designated position to fix the part, and at this time, the position of the pin may be shifted due to most of the guide rod extending out, which affects the positioning effect, and even the pin cannot be aligned with the hole position on the part and cannot be fixed. Therefore, there is a need for an improved structure that overcomes the above-mentioned deficiencies.
SUMMERY OF THE UTILITY MODEL
The utility model discloses an overcome prior art not enough, provide a rhombus telescopic pin mechanism, the utility model discloses a realize through following technical scheme:
the utility model provides a rhombus telescopic pin mechanism, includes cylinder and support, the support middle part is provided with and holds the chamber, still including fixing the telescopic pin subassembly of support one end, telescopic pin subassembly includes rhombus locating pin, installation axle, first stable cover and the stable cover of second, the one end of installation axle with rhombus locating pin fixed connection, the other end with the output shaft fixed connection of cylinder, just the installation axle runs through hold the chamber.
In the above technical scheme: the air cylinder is used for providing power so that the diamond positioning pin can move axially; the support plays a role of supporting, and the accommodating cavity is used for providing a space for conveying the telescopic pin assembly; in the telescopic pin assembly, the rhombic positioning pins are used for positioning and fixing products, the mounting shaft plays a role in transferring force and guiding tracks, and the first stabilizing sleeve and the second stabilizing sleeve are matched to keep the stability of the mounting shaft when the stroke is large.
The utility model discloses a further set up to: the outer wall of first stable cover with the inner wall sliding connection who holds the chamber, the outer wall of second stable cover with the inner wall sliding connection of first stable cover, the inner wall of second stable cover with installation axle sliding connection.
In the above technical scheme: first stable cover and second stable cover sliding connection for in the motion process of installation axle, second stable cover and first stable cover can be successively moved, reduce unnecessary friction, improve life.
The utility model discloses a further set up to: the telescopic pin assembly further comprises a sealing ring, and one end of the support is fixedly connected with the sealing ring.
In the above technical scheme: the sealing washer plays sealed effect, avoids first stabilizer sleeve, second stabilizer sleeve and the installation lubricating oil between the axle to fall out easily.
The utility model discloses a further set up to: the inner wall top of sealing washer is provided with first spacing groove, the outer wall top of first stabilizing cover be provided with the first spacing ring that first spacing groove corresponds.
In the above technical scheme: the first limiting groove is matched with the first limiting ring, so that the first stabilizing sleeve can be located at a determined initial position when not moving along with the second stabilizing sleeve.
The utility model discloses a further set up to: the inner wall top of first stabilizing sleeve is provided with the second spacing groove, the inner wall bottom of first stabilizing sleeve is provided with first spacing step, the outer wall top of second stabilizing groove be provided with the second spacing ring that the second spacing groove corresponds, the outer wall bottom of second stabilizing groove be provided with the third spacing ring that first spacing step corresponds.
In the above technical scheme: the second limiting groove is matched with the second limiting ring, so that the second stabilizing sleeve can be positioned at a determined initial position when not moving along with the mounting shaft; the arrangement of the first limiting step and the third limiting ring enables the first limiting step to be in contact with the third limiting ring after the second stabilizing sleeve moves for a certain distance, and therefore the first stabilizing sleeve moves along with the second stabilizing sleeve.
The utility model discloses a further set up to: the bottom end of the inner wall of the second stabilizing sleeve is provided with a third limiting groove, and the middle part of the mounting shaft is provided with a second limiting step corresponding to the third limiting groove.
In the above technical scheme: the setting of the spacing step of second and third spacing groove for after installation axle motion certain distance, the spacing step of second can contact with the third spacing groove, thereby makes the second stable cover along with installation axle motion.
The utility model discloses a further set up to: and the upper part of the outer wall of the mounting shaft is fixedly provided with a toggle block.
In the above technical scheme: the poking block is used for poking the second stabilizing sleeve back to the initial position when the mounting shaft retracts, and the first stabilizing sleeve is enabled to return to the initial position.
The utility model discloses a rhombus telescopic pin mechanism compares with prior art:
1. the utility model discloses a set up first stable cover and second stable cover, make under the condition of long stroke, the installation axle can receive the support, thus has promoted the stability of installation axle, has promoted the location of rhombus locating pin and the fixed degree of accuracy; 2. this use is novel still to be provided with separation blade and location tangent plane, can prevent that installation axle from rotating, and then avoids the rotation of rhombus locating pin, has promoted the positioning accuracy of rhombus locating pin.
Drawings
Fig. 1 is a cross-sectional view of the present invention in a retracted state;
fig. 2 is a cross-sectional view of the extended state of the present invention.
The corresponding part names indicated by the numbers and letters in the drawings: 10-cylinder; 20-a support; 201-a containment chamber; 30-a telescopic pin assembly; 301-diamond locating pins; 302-mounting the shaft; 302 a-a second limit step; 303-a first stabilizing sleeve; 303 a-a first stop collar; 303 b-a second restraint slot; 303 c-a first limit step; 304-a second stabilizing sleeve; 304 a-a second stop collar; 304 b-a third stop collar; 304 c-a third limit groove; 305-a sealing ring; 305 a-a first restraint slot; 40-a dial block.
Detailed Description
The embodiments of the present invention will be described in detail below, and the present embodiment is implemented on the premise of the technical solution of the present invention, and a detailed implementation manner and a specific operation process are given, but the scope of the present invention is not limited to the following embodiments.
The utility model discloses a
As shown in fig. 1-2, the utility model provides a rhombus telescopic pin mechanism, including cylinder 10 and support 20, support 20 middle part is provided with and holds chamber 201, still includes, fixes the telescopic pin subassembly 30 of support 20 one end, telescopic pin subassembly 30 includes rhombus locating pin 301, installation axle 302, first stable cover 303 and the stable cover 304 of second, the one end of installation axle 302 with rhombus locating pin 301 fixed connection, the other end with the output shaft fixed connection of cylinder 10, just installation axle 302 runs through hold chamber 201. Wherein, the accommodating cavity 201 comprises an upper cylindrical cavity and a lower cubic cavity; a sliding bearing can be arranged in the cylindrical cavity, and the first stabilizing sleeve 303 is connected with the sliding bearing in a sliding manner; the mounting shaft 302 is detachably and fixedly connected with the output end of the air cylinder 10 through a connecting block, one end of the connecting block is fixedly connected with the mounting shaft 302, and the other end of the connecting block is in threaded connection with the output end of the air cylinder 10 through threads; the length of the first stabilizing sleeve 303 is greater than the length of the second stabilizing sleeve 304 and the length of the first stabilizing sleeve 303 is greater than the height of the cylindrical cavity.
As shown in fig. 1-2, the utility model provides a rhombus telescopic pin mechanism, the outer wall of first stable cover 303 with the inner wall sliding connection who holds chamber 201, the outer wall of second stable cover 304 with the inner wall sliding connection of first stable cover 303, the inner wall of second stable cover 304 with installation axle 302 sliding connection. The first stabilizing sleeve 303 is in clearance fit with a sliding bearing fixedly arranged on the accommodating cavity 201, the second stabilizing sleeve 304 is in clearance fit with the first stabilizing sleeve 303, the second stabilizing sleeve 304 is in clearance fit with the mounting shaft 302, and the components are lubricated by grease.
As shown in fig. 1-2, the utility model provides a diamond-shaped telescopic pin mechanism, telescopic pin assembly 30 still includes sealing washer 305, sealing washer 305 the one end fixed connection of support 20. Wherein the inner diameter of the sealing ring 305 is slightly smaller than the outer diameter of the first stabilizer sleeve 303, so as to reduce the friction therebetween and still achieve the sealing function.
As shown in fig. 1-2, the utility model provides a rhombus telescopic pin mechanism, the inner wall top of sealing washer 305 is provided with first spacing groove 305a, the outer wall top of first stabilizer 303 be provided with first spacing ring 303a that first spacing groove 305a corresponds. The first limit groove 305a and the first limit ring 303a have the same height and outer diameter.
As shown in fig. 1-2, the utility model provides a rhombus telescopic pin mechanism, the inner wall top of first stable cover 303 is provided with second spacing groove 303b, the inner wall bottom of first stable cover 303 is provided with first spacing step 303c, the outer wall top of second stable cover 304 be provided with the second spacing ring 304a that second spacing groove 303b corresponds, the outer wall bottom of second stable cover 304 be provided with the third spacing ring 304b that first spacing step 303c corresponds. Wherein, the heights and the outer diameters of the second limit groove 303b and the second limit ring 304a are consistent; the first stop step 303c corresponds to the outer diameter of the third stop collar 304 b.
As shown in fig. 1-2, the utility model provides a rhombus telescopic pin mechanism, the inner wall bottom of second stable cover 304 is provided with third spacing groove 304c, the middle part of installation axle 302 be provided with the spacing step 302a of second that third spacing groove 304c corresponds. Wherein, the outer diameters of the second limit step 302a and the third limit groove 304c are the same.
As shown in fig. 1-2, the utility model provides a diamond-shaped retractable pin mechanism, the upper portion of the outer wall of the installation shaft 302 is fixedly provided with a toggle block 40. Wherein the dial block 40 is not in contact with the first stabilizer sleeve 303.
The utility model discloses a theory of operation:
a) when the output shaft of the air cylinder is at an initial position, the tops of the first stabilizing sleeve, the second stabilizing sleeve and the sealing ring are all parallel and level, and the shifting block is in contact with the second stabilizing sleeve;
b) the output shaft of the cylinder pushes the mounting shaft to precess axially;
c) after the mounting shaft moves for a moving distance, the second limiting step is contacted with the third limiting groove, so that the second stabilizing sleeve is driven to perform axial precession;
d) after the mounting shaft moves for a moving distance, the third limiting ring is contacted with the first limiting step, so that the first stabilizing sleeve is driven to perform axial precession;
e) when the rhombic pin shaft reaches a designated position, the output shaft of the air cylinder stops pushing, and at the moment, the mounting shaft is supported by the first stabilizing sleeve and the second stabilizing sleeve, so that the price cannot be generated;
f) the cylinder output shaft returns to drive the mounting shaft to return, the toggle block drives the second stabilizing sleeve to return, and the second stabilizing sleeve drives the first stabilizing sleeve to return to the initial position.
Above, only be the embodiment of the preferred of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the design of the present invention, equivalent replacement or change should be included in the protection scope of the present invention.
It should be noted that, in this document, relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
Claims (7)
1. The utility model provides a rhombus telescopic pin mechanism, includes cylinder (10) and support (20), support (20) middle part is provided with holds chamber (201), its characterized in that: still including fixing telescopic pin subassembly (30) of support (20) one end, telescopic pin subassembly (30) include rhombus locating pin (301), installation axle (302), first stable cover (303) and second stable cover (304), the one end of installation axle (302) with rhombus locating pin (301) fixed connection, the other end with the output shaft fixed connection of cylinder (10), just installation axle (302) run through hold chamber (201).
2. The diamond-shaped retractable pin mechanism of claim 1, wherein: the outer wall of first stabilizing sleeve (303) with the inner wall sliding connection who holds chamber (201), the outer wall of second stabilizing sleeve (304) with the inner wall sliding connection of first stabilizing sleeve (303), the inner wall of second stabilizing sleeve (304) with installation axle (302) sliding connection.
3. A diamond shaped retracting pin mechanism according to claim 2, wherein: the telescopic pin assembly (30) further comprises a sealing ring (305), and one end of the support (20) of the sealing ring (305) is fixedly connected.
4. A diamond shaped retracting pin mechanism according to claim 3, wherein: the inner wall top of sealing washer (305) is provided with first spacing groove (305a), the outer wall top of first stabilizer (303) is provided with first spacing ring (303a) that first spacing groove (305a) correspond.
5. The diamond-shaped retractable pin mechanism of claim 4, wherein: the inner wall top of first stabilizing sleeve (303) is provided with second spacing groove (303b), the inner wall bottom of first stabilizing sleeve (303) is provided with first spacing step (303c), the outer wall top of second stabilizing sleeve (304) be provided with second spacing ring (304a) that second spacing groove (303b) corresponds, the outer wall bottom of second stabilizing sleeve (304) be provided with third spacing ring (304b) that first spacing step (303c) corresponds.
6. The diamond-shaped retractable pin mechanism of claim 5, wherein: the bottom end of the inner wall of the second stabilizing sleeve (304) is provided with a third limiting groove (304c), and the middle part of the mounting shaft (302) is provided with a second limiting step (302a) corresponding to the third limiting groove (304 c).
7. The diamond-shaped retractable pin mechanism of claim 6, wherein: the upper part of the outer wall of the mounting shaft (302) is fixedly provided with a toggle block (40).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221368279.5U CN217475220U (en) | 2022-06-01 | 2022-06-01 | Diamond telescopic pin mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221368279.5U CN217475220U (en) | 2022-06-01 | 2022-06-01 | Diamond telescopic pin mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217475220U true CN217475220U (en) | 2022-09-23 |
Family
ID=83313762
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221368279.5U Active CN217475220U (en) | 2022-06-01 | 2022-06-01 | Diamond telescopic pin mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217475220U (en) |
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2022
- 2022-06-01 CN CN202221368279.5U patent/CN217475220U/en active Active
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