CN215091589U

CN215091589U - Positioning pin telescopic mechanism

Info

Publication number: CN215091589U
Application number: CN202022770014.5U
Authority: CN
Inventors: 钟如健; 谭智皓; 雷明愉; 梁科伟; 蒋华丽
Original assignee: Guangzhou Ruisong Intelligent Technology Co ltd
Current assignee: Guangzhou Ruisong Intelligent Technology Co ltd
Priority date: 2020-11-25
Filing date: 2020-11-25
Publication date: 2021-12-10
Anticipated expiration: 2030-11-25

Abstract

The utility model discloses a positioning pin telescoping mechanism, which comprises a bracket, a driving mechanism, a sliding module, an adjusting bolt, a plurality of first gaskets, a plurality of positioning pins and a shell with a containing cavity, wherein the shell comprises two first side plates and two second side plates, two ends of the first side plates are respectively and vertically connected with the two second side plates, the sliding module and the adjusting bolt are both positioned in the containing cavity, the driving mechanism and the sliding module are both arranged on the shell, a plurality of first through holes which are communicated with the containing cavity are arranged on one second side plate, one end of the positioning pin is protruded out of the shell, the other end of the positioning pin is connected with the sliding module after passing through the first through hole, the output end of the driving mechanism is connected with the sliding module, the adjusting bolt is positioned between the second side plate where the first through holes are positioned and the sliding module, the adjusting bolt is arranged on the shell and/or the sliding module, the bracket is positioned outside the shell and fixed on one first side plate, the first gasket may be sandwiched between the bracket and the housing. The utility model discloses can carry out two direction to the locating pin and adjust.

Description

Positioning pin telescopic mechanism

Technical Field

The utility model relates to an anchor clamps technical field especially relates to a locating pin telescopic machanism.

Background

In the prior art, most positioning pin telescoping mechanisms for welding of automobile front suspensions are completed by adopting double-guide-rod cylinder bodies, specifically, the automobile front suspensions are also called as workpieces, the workpieces are generally provided with two positioning holes, each positioning pin telescoping mechanism comprises the double-guide-rod cylinder body, two pin seats and two positioning pins, the two positioning pins are respectively connected with two output ends of the double-guide-rod cylinder body through the two pin seats, the double-guide-rod cylinder body stretches out and retracts to complete the stretching of the positioning pins, so that the two positioning pins can be respectively clamped in the two positioning holes, and the workpieces are fixed on the positioning pin telescoping mechanisms.

In order to enable the positioning pin to be smoothly clamped in the positioning hole, the pin seat needs to be made into a type with at least two adjustable directions, so that the positioning pin can be adjusted in the left-right direction and the front-back direction relative to the double-guide-rod cylinder body, namely adjusted in the length direction and the width direction of the double-guide-rod cylinder body.

However, because two positioning pins on the positioning pin telescoping mechanism are close to each other and the space between the double-guide-rod cylinder body and the workpiece is limited, the positioning pins cannot be adjusted in two directions relative to the double-guide-rod cylinder body.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a locating pin telescopic machanism to solve the locating pin on the current locating pin telescopic machanism and can't carry out two directions and adjust, thereby lead to the locating pin can not smooth the card insert in the problem in the locating hole of work piece.

The utility model discloses a following technical scheme realizes:

the utility model provides a positioning pin telescoping mechanism, which comprises a bracket, a driving mechanism, a sliding module, a plurality of first gaskets, a plurality of positioning pins, an adjusting bolt for limiting the telescoping of the positioning pins and a shell with a containing cavity, wherein the shell comprises two first side plates arranged at intervals and two second side plates arranged at intervals, two ends of the first side plates are respectively and vertically connected with the two second side plates, the sliding module and the adjusting bolt are both positioned in the containing cavity, the driving mechanism and the sliding module are both arranged on the shell, one second side plate is provided with a plurality of first through holes communicated with the containing cavity, one end of the positioning pin is exposed out of the shell, the other end of the positioning pin is connected with the sliding module after passing through the first through holes, the output end of the driving mechanism is connected with the sliding module to drive the positioning pins to move along the length direction of the first side plates, the adjusting bolt is arranged between the second side plate where the first through hole is formed and the sliding module, the adjusting bolt is arranged on the shell and/or the sliding module, the support is arranged outside the shell and fixed on one first side plate, and the first gasket can be clamped between the support and the shell.

Furthermore, a second through hole communicated with the accommodating cavity is formed in the shell, the first through hole and the second through hole are respectively formed in the two second side plates, the driving mechanism is located outside the shell, and the output end of the driving mechanism penetrates through the second through hole and then is connected with the sliding module.

Further, the sliding module comprises a sliding block assembly and a sliding rail, the sliding rail is fixed on the inner wall of the shell along the length direction of the first side plate, the sliding block assembly is installed on the sliding rail in a sliding mode, one end of the sliding block assembly is connected with the output end of the driving mechanism, and the other end of the sliding block assembly is connected with the positioning pin.

Further, the slider component includes fixed block, slider, first plate body and second plate body, first plate body passes through slider slidable mounting in on the slide rail, the fixed block with the second plate body is fixed in respectively the both ends of first plate body, the fixed block with actuating mechanism's output is connection for floating, two the locating pin is fixed in respectively the both ends of second plate body, adjusting bolt is located two between the locating pin.

Further, the slide rail includes two guide rails that the interval set up, the quantity of slider is two, two the slider slidable mounting is respectively in two on the guide rail.

Further, locating pin telescopic machanism still includes the second gasket and is used for the backing plate of butt on the work piece, the backing plate passes through the second gasket is fixed in outside the casing, the second gasket has the third perforation that a plurality of intervals set up, the backing plate has the fourth perforation that a plurality of intervals set up, the one end of locating pin protruding expose in outside the backing plate, the other end of locating pin passes in proper order behind fourth perforation, third perforation and the first perforation with the module that slides is connected.

Further, locating pin telescopic machanism still including be used for with work piece upper groove matched with mounting panel, the mounting panel is fixed in keeping away from of backing plate one side of second gasket, the mounting panel has the fifth perforation that a plurality of intervals set up, the one end of locating pin protruding expose in outside the mounting panel, the other end of locating pin passes in proper order behind fifth perforation, the fourth perforation, the third perforation and the first perforation with the module that slides is connected.

Furthermore, the locating pin telescopic mechanism further comprises a plurality of magnetic pieces for adsorbing workpieces, and the magnetic pieces are fixed on the mounting plate.

Furthermore, one side of the mounting plate, which is far away from the backing plate, is concavely provided with a plurality of mounting grooves, and the magnetic part is fixed in the mounting grooves.

Furthermore, the quantity of locating pin is two, the quantity of magnetism spare is three, three magnetism spare is "article" style of calligraphy, and three magnetism spare all is located two the locating pin below.

Compared with the prior art, the beneficial effects of the utility model reside in that:

the bracket of the utility model is fixed outside the first side plate of the shell, the positioning pin passes through the second side plate which is vertical to the first side plate, and the shell and the positioning pin are integrally moved along the length direction of the second side plate in a mode of clamping a plurality of first gaskets between the bracket and the shell; meanwhile, the adjusting bolt is located between the second side plate where the first through hole is formed and the sliding module, the length of the adjusting bolt is set to limit the positioning pin to move along the length direction of the first side plate, so that the positioning pin can be adjusted in two directions, the positioning pin can be smoothly inserted into the positioning hole of the workpiece, and the workpiece is fixed.

Drawings

Fig. 1 is a schematic structural view illustrating a workpiece mounted on a positioning pin telescoping mechanism according to an embodiment of the present invention;

fig. 2 is a schematic structural diagram of a workpiece according to an embodiment of the present invention;

fig. 3 is a schematic structural view of a positioning pin telescoping mechanism according to an embodiment of the present invention;

fig. 4 is an exploded view of a positioning pin telescoping mechanism according to an embodiment of the present invention;

fig. 5 is a first schematic structural diagram of the positioning pin telescoping mechanism according to the embodiment of the present invention, after removing the top plate, the bracket and a first side plate;

FIG. 6 is an enlarged view of a portion of FIG. 5 at A;

fig. 7 is a schematic structural diagram ii of the positioning pin telescoping mechanism according to the embodiment of the present invention, after removing the top plate, the bracket and the first side plate;

fig. 8 is a partially enlarged schematic view of a portion B in fig. 7.

In the figure:

10. a workpiece; 11. positioning holes; 12. a groove; 20. a support; 30. a drive mechanism; 31. a cylinder body; 32. a piston rod; 33. a cylinder block joint; 40. a sliding module; 41. a slider assembly; 411. a fixed block; 412. a slider; 413. a first plate body; 414. a second plate body; 42. a slide rail; 421. a guide rail; 50. positioning pins; 60. adjusting the bolt; 61. adjusting a rod; 70. a housing; 71. an accommodating chamber; 72. a first side plate; 73. a second side plate; 731. a first perforation; 732. a second perforation; 74. a top plate; 75. a base plate; 80. a second gasket; 81. a third perforation; 90. a base plate; 91. a fourth perforation; 100. mounting a plate; 110. a fifth perforation; 120. mounting grooves; 200. a magnetic member; 300. and a third gasket.

Detailed Description

The present invention will be further described with reference to the accompanying drawings and the detailed description, and it should be noted that, on the premise of no conflict, the embodiments or technical features described below can be arbitrarily combined to form a new embodiment.

Referring to fig. 1 and 2, the present invention discloses a positioning pin telescoping mechanism for fixing a front suspension of an automobile for welding, the front suspension of the automobile is also referred to as a workpiece 10, the workpiece 10 is provided with a plurality of positioning holes 11 and a groove 12, preferably, the number of the positioning holes 11 is two, and the groove 12 is located below the two positioning holes 11.

Referring to fig. 3 to 8, the positioning pin telescoping mechanism includes a bracket 20, a driving mechanism 30, a sliding module 40, a plurality of first spacers, a plurality of positioning pins 50, an adjusting bolt 60 for limiting the telescoping of the positioning pins 50, and a housing 70 having an accommodating cavity 71, wherein the sliding module 40 and the adjusting bolt 60 are both located in the accommodating cavity 71, and the bracket 20 is used for connecting with an external machine.

In this embodiment, the housing 70 includes two first side plates 72 disposed at an interval, two second side plates 73 disposed at an interval, a top plate 74 and a bottom plate 75 disposed opposite to the top plate 74, the top plate 74 is connected to the tops of the first side plates 72 and the second side plates 73, the bottom plate 75 is connected to the bottoms of the first side plates 72 and the second side plates 73, the two ends of the first side plates 72 are respectively connected to the two second side plates 73 perpendicularly, the top plate 74, the bottom plate 75, the two first side plates 72 and the two second side plates 73 enclose the accommodating cavity 71, the housing 70 can prevent welding slag from flying into the workpiece 10 during welding, and the use accuracy and stability of the inner structure are prevented from being affected.

The driving mechanism 30 and the sliding module 40 are both mounted on the housing 70, wherein one of the second side plates 73 is provided with a plurality of first through holes 731 which are both communicated with the accommodating cavity 71, one end of the positioning pin 50 is exposed outside the housing 70, the other end of the positioning pin passes through the first through hole 731 and then is connected with the sliding module 40, and the positioning pin 50 can move relative to the housing 70 in the first through hole 731.

The output end of the driving mechanism 30 is connected with the sliding module 40 to drive the positioning pin 50 to move along the length direction of the first side plate 72, so as to achieve the telescopic function of the positioning pin 50, the adjusting bolt 60 is located between the second side plate 73 where the first through hole 731 is located and the sliding module 40, the adjusting bolt 60 is installed on the shell 70 and/or the sliding module 40, and the moving distance of the positioning pin 50 in the length direction of the first side plate 72 can be limited by changing the length of the adjusting bolt 60.

Adjusting bolt 60 in this embodiment includes two regulation poles 61, all is equipped with two screw holes on the second curb plate 73 that first perforation 731 place and the module 40 that slides, and two regulation poles 61 are installed respectively on two screw holes, can set up the length that adjusting pole 61 is protruding on second curb plate 73 or the module 40 that slides through rotatory regulation pole 61, and the effect of adjusting pole 61 is equivalent to the piece that stops, adjusts the flexible volume of the depth adjustment locating pin 50 that pole 61 locked into through adjusting.

The bracket 20 is located outside the housing 70 and fixed to one of the first side plates 72, and the first spacer is interposed between the bracket 20 and the housing 70, so that the driving mechanism 30, the sliding module 40, the positioning pin 50, the adjusting bolt 60, and the housing 70 can be integrally moved in the longitudinal direction of the second side plate 73.

In a preferred embodiment, the housing 70 is further provided with a second through hole 732 communicated with the accommodating cavity 71, the first through hole 731 and the second through hole 732 are respectively disposed on the two second side plates 73, the driving mechanism 30 is located outside the housing 70, and an output end of the driving mechanism 30 passes through the second through hole 732 and then is connected with the sliding module 40 to drive the positioning pin 50 to extend and retract, so that a distance between the driving mechanism 30 and the positioning pin 50 is increased, and the amount of extension and retraction of the positioning pin 50 is conveniently adjusted.

In this embodiment, the sliding module 40 includes a sliding block assembly 41 and a sliding rail 42, the sliding rail 42 is fixed to the inner wall of the housing 70 along the length direction of the first side plate 72, the sliding rail 42 is fixed to the bottom plate 75, the sliding block assembly 41 is slidably mounted on the sliding rail 42, one end of the sliding block assembly 41 is connected to the output end of the driving mechanism 30, the other end of the sliding block assembly 41 is connected to the positioning pin 50, the driving mechanism 30 can drive the positioning pin 50 to reciprocate through the sliding block assembly 41, and the two adjusting rods 61 are respectively fixed to the housing 70 and the sliding block assembly 41, so as to limit the positioning pin 50.

The sliding block assembly 41 comprises a fixed block 411, a sliding block 412, a first plate body 413 and a second plate body 414, the first plate body 413 is slidably mounted on the sliding rail 42 through the sliding block 412, the fixed block 411 and the second plate body 414 are respectively fixed at two ends of the top of the first plate body 413, the fixed block 411 is in floating connection with the output end of the driving mechanism 30, the two positioning pins 50 are respectively fixed at two ends of the second plate body 414, and the adjusting bolt 60 is located between the two positioning pins 50, so that the stability and smoothness of the positioning pins 50 in the moving process can be guaranteed.

Specifically, the driving mechanism 30 includes a cylinder 31, a piston rod 32 and a cylinder joint 33, the piston rod 32 and the cylinder joint 33 constitute an output end of the driving mechanism 30, the cylinder joint 33 is connected to the cylinder 31 through the piston rod 32, and a 7mm long groove is milled in the middle position of the top of the cylinder joint 33 in order to be embedded into the fixed block 411 to form a floating joint.

In a preferred embodiment, the slide rail 42 includes two guide rails 421 spaced apart from each other, the number of the sliding blocks 412 is two, and the two sliding blocks 412 are slidably mounted on the two guide rails 421, so that the positioning pin 50 can further run smoothly during the moving process.

The positioning pin telescoping mechanism further comprises a second gasket 80 and a base plate 90 used for abutting against the workpiece 10, the base plate 90 is fixed outside the shell 70 through the second gasket 80, the second gasket 80 is provided with a plurality of third through holes 81 arranged at intervals, the base plate 90 is provided with a plurality of fourth through holes 91 arranged at intervals, one end of the positioning pin 50 is exposed outside the base plate 90 in a protruding mode, the other end of the positioning pin 50 sequentially penetrates through the fourth through holes 91, the third through holes 81 and the first through holes 731 and then is connected with the sliding module 40, and the telescoping amount of the positioning pin 50 exposed outside the base plate 90 can be adjusted by replacing the second gasket 80.

The positioning pin telescoping mechanism further comprises a mounting plate 100 used for being matched with the groove 12 on the workpiece 10, the mounting plate 100 is fixed on one side, away from the second gasket 80, of the backing plate 90, the mounting plate 100 is provided with a plurality of fifth through holes 110 arranged at intervals, one end of the positioning pin 50 is protruded out of the mounting plate 100, the other end of the positioning pin 50 sequentially penetrates through the fifth through holes 110, the fourth through holes 91, the third through holes 81 and the first through holes 731 and then is connected with the sliding module 40, and the shape of the mounting plate 100 is determined according to points, needing to be supported, of the workpiece 10.

In a preferred embodiment, the positioning pin telescoping mechanism further includes a plurality of magnetic members 200 for attracting the workpiece 10, the plurality of magnetic members 200 are fixed to the mounting plate 100, so that the workpiece 10 can be more stably mounted on the positioning pin telescoping mechanism, and the magnetic members 200 are preferably magnets.

In a preferred embodiment, a plurality of mounting grooves 120 are concavely formed on a side of the mounting plate 100 away from the backing plate 90, and the magnetic member 200 is fixed in the mounting grooves 120, so that the mounting plate 100 can be tightly attached to the workpiece 10.

In a preferred embodiment, the number of the positioning pins 50 is two, such that the number of the fifth through hole 110, the number of the fourth through hole 91, the number of the third through hole 81 and the number of the first through hole 731 are all two, the number of the magnetic members 200 is three, the three magnetic members 200 are in a zigzag shape, the three magnetic members 200 are all disposed between the two positioning pins 50, and the three magnetic members 200 are all located below the two positioning pins 50, so that the three magnetic members 200 can be closely attached to the workpiece 10.

In a preferred embodiment, the positioning pin telescoping mechanism further includes a plurality of third spacers 300 disposed between the second side plate 73 and the second plate 414, the third spacers 300 are provided with U-shaped retaining openings, the third spacers 300 can be retained on the positioning pins 50 through the retaining openings, and the third spacers 300 can also be used to adjust the telescoping amount of the positioning pins 50.

The working principle of the positioning pin telescoping mechanism is as follows:

when the driving mechanism 30 is in the extended state, two positioning pins 50 in the whole positioning pin telescoping mechanism are also in the state of maximum extension, and then two positioning holes 11 of the workpiece 10 to be positioned are inserted into the positioning pins 50 and placed, and at this time, other clamping mechanisms (not belonging to the positioning pin telescoping mechanism) above the positioning pins 50 can press down and clamp the workpiece 10 on the positioning pin telescoping mechanism. Then, after other preparatory work is completed, welding of the workpiece 10 can be started. After the welding is completed, the two positioning pins 50 can easily complete the pin removing work by the aid of the sliding module 40 under the action of the driving mechanism 30.

In addition, if the positioning pin 50 is not aligned with the positioning hole 11 of the workpiece 10 and needs to be fine-adjusted, the adjustment of the positioning pin 50 on the positioning pin telescoping mechanism in two directions can be realized by setting the length of the adjusting bolt 60 or replacing the first gasket clamped between the bracket 20 and the housing 70, wherein the adjustment is carried out by adjusting the whole mechanism together, but not by adjusting each positioning pin 50 individually, so that the structure of the positioning pin telescoping mechanism is more simplified.

To sum up, the bracket 20 of the present invention is fixed outside the first side plate 72 of the housing 70, the positioning pin 50 passes through the second side plate 73 perpendicular to the first side plate 72, and the housing 70 and the positioning pin 50 are integrally moved along the length direction of the second side plate 73 by interposing a plurality of first gaskets between the bracket 20 and the housing 70; meanwhile, the adjusting bolt 60 is located between the second side plate 73 where the first through hole 731 is located and the sliding module 40, the length of the adjusting bolt 60 is set to limit the positioning pin 50 to move along the length direction of the first side plate 72, so that the positioning pin 50 can be adjusted in two directions, the positioning pin 50 can be smoothly inserted into the positioning hole 11 of the workpiece 10, and the positioning pin telescoping mechanism is simpler and more convenient in comparison with a conventional design structure, more stable and simpler in installation and debugging of the positioning pin 50.

The above embodiments are only preferred embodiments of the present invention, and the protection scope of the present invention cannot be limited thereby, and any insubstantial changes and substitutions made by those skilled in the art based on the present invention are all within the protection scope of the present invention.

Claims

1. A locating pin telescoping mechanism is characterized by comprising a support, a driving mechanism, a sliding module, a plurality of first gaskets, a plurality of locating pins, an adjusting bolt and a shell, wherein the adjusting bolt is used for limiting the telescoping of the locating pins, the shell is provided with a containing cavity, the shell comprises two first side plates arranged at intervals and two second side plates arranged at intervals, two ends of each first side plate are respectively and vertically connected with the two second side plates, the sliding module and the adjusting bolt are both positioned in the containing cavity, the driving mechanism and the sliding module are both arranged on the shell, one second side plate is provided with a plurality of first through holes communicated with the containing cavity, one end of each locating pin is exposed out of the shell, the other end of each locating pin is connected with the sliding module after penetrating through the first through hole, the output end of the driving mechanism is connected with the sliding module to drive the locating pins to move along the length direction of the first side plates, the adjusting bolt is arranged between the second side plate where the first through hole is formed and the sliding module, the adjusting bolt is arranged on the shell and/or the sliding module, the support is arranged outside the shell and fixed on one first side plate, and the first gasket can be clamped between the support and the shell.

2. The positioning pin telescoping mechanism of claim 1, wherein the housing is further provided with a second through hole communicated with the accommodating cavity, the first through hole and the second through hole are respectively formed in the two second side plates, the driving mechanism is located outside the housing, and an output end of the driving mechanism penetrates through the second through hole and then is connected with the sliding module.

3. The locating pin telescoping mechanism of claim 1, wherein the sliding module comprises a sliding block assembly and a sliding rail, the sliding rail is fixed on the inner wall of the housing along the length direction of the first side plate, the sliding block assembly is slidably mounted on the sliding rail, and one end of the sliding block assembly is connected with the output end of the driving mechanism while the other end is connected with the locating pin.

4. The positioning pin telescoping mechanism of claim 3, wherein the slider assembly comprises a fixed block, a slider, a first plate and a second plate, the first plate is slidably mounted on the slide rail through the slider, the fixed block and the second plate are respectively fixed at two ends of the first plate, the fixed block is in floating connection with the output end of the driving mechanism, the two positioning pins are respectively fixed at two ends of the second plate, and the adjusting bolt is located between the two positioning pins.

5. The locating pin telescoping mechanism of claim 4, characterized in that the slide rail comprises two guide rails arranged at intervals, the number of the slide blocks is two, and the two slide blocks are respectively slidably mounted on the two guide rails.

6. The locating pin telescoping mechanism of claim 2, characterized in that, the locating pin telescoping mechanism still includes second gasket and is used for the backing plate of butt on the work piece, the backing plate passes through the second gasket is fixed in outside the casing, the second gasket has the third perforation of a plurality of intervals setting, the backing plate has the fourth perforation of a plurality of intervals setting, the one end of locating pin is exposed in outside the backing plate, the other end of locating pin pass in proper order behind fourth perforation, third perforation and the first perforation with the module of sliding is connected.

7. The locating pin telescoping mechanism of claim 6, characterized in that, the locating pin telescoping mechanism still includes and is used for with work piece upper groove matched with mounting panel, the mounting panel is fixed in the one side of keeping away from the second gasket of backing plate, the mounting panel has the fifth perforation that a plurality of intervals set up, the one end of locating pin is protruding to expose in the mounting panel outward, the other end of locating pin pass in proper order behind fifth perforation, fourth perforation, third perforation and the first perforation with the module of sliding is connected.

8. The locating pin telescoping mechanism of claim 7, further comprising a plurality of magnetic members for attracting a workpiece, wherein the plurality of magnetic members are fixed to the mounting plate.

9. The locating pin telescoping mechanism of claim 8, wherein the mounting plate is recessed with a plurality of mounting slots on a side thereof away from the backing plate, the magnetic member being secured in the mounting slots.

10. The locating pin telescoping mechanism of claim 8, wherein the number of locating pins is two, the number of magnetic members is three, three of the magnetic members are in a shape of Chinese character pin, and the three magnetic members are all located below the two locating pins.