CN216758957U

CN216758957U - Auxiliary clamping mechanism for preventing milling deformation of thin wall of opening part

Info

Publication number: CN216758957U
Application number: CN202122839635.9U
Authority: CN
Inventors: 王海涛; 吴兴丁; 徐平宗
Original assignee: Ningbo Top Chassis System Co ltd
Current assignee: Ningbo Top Chassis System Co ltd
Priority date: 2021-11-18
Filing date: 2021-11-18
Publication date: 2022-06-17
Anticipated expiration: 2031-11-18

Abstract

The utility model discloses an auxiliary clamping mechanism for preventing milling deformation of a thin wall part of an opening part, which is characterized by comprising an auxiliary clamping seat, wherein a supporting arm and a movable clamping arm are arranged on the auxiliary clamping seat; the supporting arm and the clamping arm are clamped on two opposite end faces of the thin wall of the opening part in a matched mode to achieve auxiliary clamping during machining. The thin-wall stable clamping device has the advantages that the supporting arm and the clamping arm are matched to realize stable clamping of the thin wall, so that the condition that the thin wall is deformed during milling is effectively prevented, the product percent of pass is improved, and the overall production efficiency is further improved.

Description

Auxiliary clamping mechanism for preventing milling deformation of thin wall of opening part

Technical Field

The utility model relates to a clamping mechanism, in particular to an auxiliary clamping mechanism for preventing milling deformation of a thin wall of an opening part.

Background

For a bracket product (see fig. 1) with an opening a2 and a thin wall a1 on one side of the opening a2, the opening a2 usually has a connecting and assembling function, so that the inner end surface of the opening a2 needs to be milled during production, at present, when the product is processed, only main positioning clamping for overall clamping of the product is usually provided, however, when the inner end surface of the opening a2 corresponding to the thin wall a1 is milled, due to the small thickness of the thin wall a1, the thin wall a1 is very easily deformed, so that a defective product is generated, and in the whole processing process, the qualification rate of the product is low, and the production efficiency is seriously affected.

Disclosure of Invention

The utility model aims to solve the technical problem of providing an auxiliary clamping mechanism for preventing milling deformation of the thin wall of an opening part, and the thin wall of the part is clamped by the clamp during machining, so that the condition that the thin wall is deformed during milling is effectively prevented, the product percent of pass is improved, and the overall production efficiency is improved.

The technical scheme adopted by the utility model for solving the technical problems is as follows:

the auxiliary clamping mechanism for preventing the milling deformation of the thin wall of the opening part comprises an auxiliary clamping seat, wherein a supporting arm and a movable clamping arm are arranged on the auxiliary clamping seat, and a clamping driving member for driving the clamping arm to move and providing clamping force for the clamping arm during clamping is arranged between the auxiliary clamping seat and the clamping arm; the supporting arm and the clamping arm are clamped on two opposite end faces of the thin wall of the opening part in a matched mode to achieve auxiliary clamping during machining.

One end of the supporting arm is provided with a supporting part in an upward protruding mode. The supporting part plays a main supporting and clamping role.

The one end of support arm for supporting the installation end, the other end of support arm for supporting the end, supplementary clamping seat on be provided with and be used for the installation the mount pad of support arm, the mount pad on the undercut be provided with mounting groove, support the installation end and rotationally install mounting groove in make support the end can warp from top to bottom, the preceding terminal surface arch of support end be provided with the supporting part, the below of support end be provided with the support hydro-cylinder, the cylinder body fixed mounting of support hydro-cylinder in supplementary clamping seat on, the cylinder body of support hydro-cylinder in can be provided with the support ejector pin from top to bottom movably, the upper end of support ejector pin stretch out the cylinder body of support hydro-cylinder support and set up the lower terminal surface of supporting part on. The supporting oil cylinder provides a stable clamping supporting force for the supporting arm, and the supporting mounting end of the supporting arm is rotatably mounted on the mounting seat to realize fine adjustment of the supporting position of the supporting end so as to adapt to different main positioning clamping.

The mounting groove is internally provided with a mounting shaft in a cross-connection manner, the supporting mounting end is provided with a through mounting hole, the mounting shaft is mounted in the mounting hole in a cross-connection manner, and the inner diameter of the mounting hole is larger than the outer diameter of the mounting shaft so that the supporting mounting end can be rotatably mounted in the mounting groove. The rotatable installation structure for the supporting installation end is simple, convenient to assemble and low in cost.

The clamping drive component be the clamping hydro-cylinder, the cylinder body setting of clamping hydro-cylinder be in supplementary clamping seat on, the cylinder body of clamping hydro-cylinder in can be provided with the clamping ejector pin from top to bottom movably, the clamping arm for L type structure include the clamping installation end and with the clamping installation end looks vertically clamping end, the upper end of clamping ejector pin stretch out the clamping hydro-cylinder the cylinder body with the clamping installation end between rotatable coupling realize the upper and lower tilting of clamping end, the upper end of the cylinder body of clamping hydro-cylinder upwards the arch be provided with a spacing seat, the preceding terminal surface of spacing seat with the preceding terminal surface of clamping installation end between be connected through a preceding limiting plate that rotates, the both ends of preceding limiting plate rotationally install respectively spacing seat with the clamping installation end on, the rear end face of spacing seat with the rear end face of clamping installation end between rotate the limiting plate through a back and link to each other The front rotating limiting plate and the rear rotating limiting plate are arranged oppositely, and the end head of the clamping end is vertically bent towards the clamping direction to form a clamping part; after opening part owner location clamping was accomplished, through the adjustment support ejector pin the upper and lower position realize the supporting part support the lower lateral wall that sets up at the thin wall of opening part, clamping ejector pin upward movement preceding rotation limiting plate with the back combined action who rotates the limiting plate under, the clamping arm lock rotate, make clamping portion clamping to the last lateral wall of thin wall on, the realization is fixed the clamping of thin wall. The clamping oil cylinder not only drives the clamping arm to move, but also provides clamping supporting force for the clamping arm, and the structure is simple and the use is stable; the front rotation limiting plate and the rear rotation limiting plate are matched with each other to limit the moving direction of the clamping end, so that the clamping arm rotates towards the clamping direction under the action of the clamping ejector rod, and the device is simple in structure and convenient to operate; the clamping part is attached to the corresponding end surface of the thin wall to play a main clamping role.

The lower end face of the clamping part is a clamping end face, and a plurality of clamping teeth are arranged on the clamping end face; when the clamping is fixed, the lower end surface of the clamping tooth is tightly attached to the upper side wall of the thin wall. The friction force between the clamping teeth and the corresponding end face of the thin wall is increased, and stable clamping is ensured.

The clamping installation end on be provided with and be used for the installation the mounting groove of the upper end of clamping ejector pin, the mounting groove in cross-under install and rotate the connecting axle, the upper end of clamping ejector pin have with rotation connecting axle matched with rotate the mounting hole, the rotation connecting axle with rotate the mounting hole cooperation realize the clamping installation end with rotatable coupling between the clamping ejector pin. The structure is used for realizing rotatable installation between the clamping installation end and the clamping ejector rod, and is simple in structure and stable in connection.

The limiting seat is provided with a lower connecting shaft in a front-to-back cross connection mode, the lower ends of the front rotating limiting plate and the rear rotating limiting plate are respectively and rotatably installed at the front end and the rear end, extending outwards, of the lower connecting shaft, the clamping installation end is provided with an upper connecting shaft in a front-to-back cross connection mode, and the upper ends of the front rotating limiting plate and the rear rotating limiting plate are respectively and rotatably installed at the front end and the rear end, extending outwards, of the upper connecting shaft. The structure for realizing the rotary connection of the front rotary limiting plate and the rear rotary limiting plate is simple and convenient to assemble.

The rear part of the clamping arm is provided with a supporting wall, the supporting wall is arranged on the auxiliary clamping seat, a guide block is arranged between the supporting wall and the clamping installation end, the guide block is fixedly arranged on the supporting wall, the rear end face of the clamping installation end is provided with a guide groove, a guide part matched with the guide groove is arranged on the guide block in a protruding mode, and the guide part can be arranged in the guide groove in a sliding mode. The movement of the clamping arm is further guided, and meanwhile a certain supporting effect is provided for the clamping arm.

Compared with the prior art, the utility model has the advantages that: after the main positioning and clamping of the opening part is completed, a support arm arranged on the auxiliary clamping seat firstly provides a support for the lower side wall of the thin wall needing auxiliary clamping, then the clamping driving mechanism drives the clamping arm to move and provides clamping supporting force for the clamping arm, clamping of the clamping arm on the upper side wall of the thin wall is realized, and the support arm and the clamping arm are matched to realize stable clamping of the thin wall, so that the condition that the thin wall is deformed during milling is effectively prevented, the product percent of pass is improved, and the whole production efficiency is further improved.

Drawings

FIG. 1 is a schematic perspective view of a clamped product according to the present invention;

FIG. 2 is a schematic perspective view of the present invention;

FIG. 3 is a schematic perspective view of a chuck arm according to the present invention;

FIG. 4 is a perspective view of a support wall according to the present invention;

FIG. 5 is a schematic perspective view of the auxiliary clamping seat of the present invention;

FIG. 6 is a schematic structural view of the present invention after clamping the upper opening part;

FIG. 7 is a schematic structural view of the present invention with the opening removed in the clamped state.

Detailed Description

The utility model is described in further detail below with reference to the accompanying examples.

As shown in the figure, the auxiliary clamping mechanism for preventing the milling deformation of the thin wall of the opening part comprises an auxiliary clamping seat 1, wherein a supporting arm 2 and a movable clamping arm 3 are arranged on the auxiliary clamping seat 1, and a clamping driving member 4 for driving the clamping arm 3 to move and providing clamping force for the clamping arm 3 during clamping is arranged between the auxiliary clamping seat 1 and the clamping arm 3; the supporting arm 2 and the clamping arm 3 are clamped on two opposite end faces of the thin wall A1 of the opening part A in a matching mode, so that auxiliary clamping during machining is achieved.

In this embodiment, one end of the support arm 2 is provided with a support portion 201 protruding upward. The supporting part 201 plays a main supporting and clamping role.

In this embodiment, one end of the supporting arm 2 is a supporting mounting end 21, the other end of the supporting arm 2 is a supporting end 22, a mounting seat 11 for mounting the supporting arm 2 is disposed on the auxiliary clamping seat 1, a mounting groove 111 is recessed downward on the mounting seat 11, the supporting mounting end 21 is rotatably mounted in the mounting groove 111 so that the supporting end 22 can tilt up and down, a supporting portion 201 is convexly disposed on a front end surface of the supporting end 22, a supporting cylinder 5 is disposed below the supporting end 22, a cylinder body 51 of the supporting cylinder 5 is fixedly mounted on the auxiliary clamping seat 1, a supporting rod 52 is movably disposed in the cylinder body 51 of the supporting cylinder 5 up and down, and an upper end of the supporting rod 52 extending out of the cylinder body 51 of the supporting cylinder 5 is supported and disposed on a lower end surface of the supporting portion 201. The supporting oil cylinder 5 provides a stable clamping supporting force for the supporting arm 2, and the supporting mounting end 21 of the supporting arm 2 is rotatably mounted on the mounting seat 11 to realize fine adjustment of the supporting position of the supporting end 22 so as to adapt to different main positioning clamping.

In this embodiment, a mounting shaft 6 is disposed in the mounting groove 111 in a penetrating manner, the support mounting end 21 has a through mounting hole 211, the mounting shaft 6 is mounted in the mounting hole 211 in a penetrating manner, and the inner diameter of the mounting hole 211 is larger than the outer diameter of the mounting shaft 6, so that the support mounting end 21 can be rotatably mounted in the mounting groove 111. The rotatable mounting structure for the support mounting end 21 is simple in structure, convenient to assemble and low in cost.

In this embodiment, the clamping driving member 4 is a clamping cylinder, a cylinder body 41 of the clamping cylinder is disposed on the auxiliary clamping seat 1, a clamping ejector rod 42 is movably disposed in the cylinder body 41 of the clamping cylinder up and down, the clamping arm 3 is an L-shaped structure including a clamping mounting end 31 and a clamping end 32 perpendicular to the clamping mounting end 31, an upper end of the clamping ejector rod 42 extends out of the space between the cylinder body 41 of the clamping cylinder and the clamping mounting end 31 to rotatably connect the clamping end 32 up and down, an upper end of the cylinder body 41 of the clamping cylinder is provided with a limiting seat 43 protruding upwards, a front end surface of the limiting seat 43 is connected with a front end surface of the clamping mounting end 31 through a front rotation limiting plate 7, two ends of the front rotation limiting plate 7 are rotatably mounted on the limiting seat 43 and the clamping mounting end 31 respectively, a rear end surface of the limiting seat 43 is connected with a rear rotation limiting plate 8, the two ends of the rear rotation limiting plate 8 are respectively and rotatably arranged on the limiting seat 43 and the clamping installation end 31, the front rotation limiting plate 7 is arranged opposite to the rear rotation limiting plate 8, and the end head of the clamping end 32 is vertically bent towards the clamping direction to form a clamping part 301; after the main positioning and clamping of the opening part A are completed, the supporting part 201 is supported and arranged on the lower side wall of the thin wall A1 of the opening part A by adjusting the upper and lower positions of the supporting ejector rod 52, the clamping ejector rod 42 moves upwards, and under the combined action of the front rotation limiting plate 7 and the rear rotation limiting plate 8, the clamping arm 3 rotates, so that the clamping part 301 is clamped on the upper side wall of the thin wall A1, and the clamping and fixing of the thin wall A1 are realized. The clamping oil cylinder not only drives the clamping arm 3 to move, but also provides clamping supporting force for the clamping arm 3, and the structure is simple and the use is stable; the front rotation limiting plate 7 and the rear rotation limiting plate 8 are matched with each other to limit the moving direction of the clamping end 32, so that the clamping arm 3 rotates towards the clamping direction under the action of the clamping ejector rod 42, and the clamping device is simple in structure and convenient to operate; the clamping part 301 is attached to the corresponding end face of the thin wall A1 to play the main clamping role.

In this embodiment, the lower end surface of the clamping portion 301 is a clamping end surface, and a plurality of clamping teeth 302 are arranged on the clamping end surface; when clamping, the lower end face of the clamping tooth 302 is tightly attached to the upper side wall of the thin wall A1. The friction force between the clamping teeth 302 and the corresponding end face of the thin wall A1 is increased, and stable clamping is ensured.

In this embodiment, the mounting groove 311 for mounting the upper end of the mounting ejector rod 42 is disposed on the mounting end 31, the rotating connecting shaft 312 is mounted in the mounting groove 311 in a penetrating manner, the upper end of the mounting ejector rod 42 has a rotating mounting hole 421 matched with the rotating connecting shaft 312, and the rotating connecting shaft 312 is matched with the rotating mounting hole 421 to realize the rotatable connection between the mounting end 31 and the mounting ejector rod 42. The structure is used for realizing rotatable installation between the clamping installation end 31 and the clamping ejector rod 42, and is simple in structure and stable in connection.

In this embodiment, the lower connecting shaft 431 is provided in the limiting seat 43 in a penetrating manner from front to rear, the lower ends of the front rotation limiting plate 7 and the rear rotation limiting plate 8 are rotatably mounted at the front end and the rear end of the lower connecting shaft 431, respectively, the upper connecting shaft 313 is provided in the clamping mounting end 31 in a penetrating manner from front to rear, and the upper ends of the front rotation limiting plate 7 and the rear rotation limiting plate 8 are rotatably mounted at the front end and the rear end of the upper connecting shaft 313, respectively. The structure for realizing the rotary connection of the front rotary limiting plate 7 and the rear rotary limiting plate 8 is simple and convenient to assemble.

In this embodiment, a supporting wall 12 is disposed behind the chuck arm 3, the supporting wall 12 is disposed on the auxiliary chuck holder 1, a guide block 13 is disposed between the supporting wall 12 and the chuck mounting end 31, the guide block 13 is fixedly disposed on the supporting wall 12, a guide groove 314 is disposed on a rear end surface of the chuck mounting end 31, a guide portion 131 engaged with the guide groove 314 is protrudingly disposed on the guide block 13, and the guide portion 131 is slidably disposed in the guide groove 314. The movement of the clamping arm 3 is further guided, and meanwhile, a certain supporting function is provided for the clamping arm 3.

Claims

1. The auxiliary clamping mechanism is used for preventing the milling deformation of the thin wall of the opening part and is characterized by comprising an auxiliary clamping seat, wherein a supporting arm and a movable clamping arm are arranged on the auxiliary clamping seat; the supporting arm and the clamping arm are clamped on two opposite end faces of the thin wall of the opening part in a matched mode to achieve auxiliary clamping during machining.

2. The auxiliary clamping mechanism for preventing the milling deformation of the thin wall of the opening part as claimed in claim 1, wherein a supporting part is convexly arranged at one end of the supporting arm.

3. The auxiliary clamping mechanism for preventing milling deformation of the thin wall of the opening part as claimed in claim 2, it is characterized in that one end of the supporting arm is a supporting and mounting end, the other end of the supporting arm is a supporting end, the auxiliary clamping seat is provided with a mounting seat for mounting the supporting arm, the mounting seat is provided with a mounting groove which is sunken downwards, the supporting installation end is rotatably installed in the installation groove to enable the supporting end to tilt up and down, the supporting part is convexly arranged on the front end surface of the supporting end, a supporting oil cylinder is arranged below the supporting end, the cylinder body of the supporting oil cylinder is fixedly arranged on the auxiliary clamping seat, a supporting mandril is movably arranged in the cylinder body of the supporting oil cylinder up and down, the upper end of the supporting mandril extends out of the cylinder body of the supporting oil cylinder to be supported and arranged on the lower end surface of the supporting part.

4. The auxiliary clamping mechanism for preventing the milling deformation of the thin wall of the opening part as claimed in claim 3, wherein a mounting shaft is arranged in the mounting groove in a penetrating manner, the support mounting end is provided with a through mounting hole, the mounting shaft is mounted in the mounting hole in a penetrating manner, and the inner diameter of the mounting hole is larger than the outer diameter of the mounting shaft, so that the support mounting end can be rotatably mounted in the mounting groove.

5. The auxiliary clamping mechanism for preventing the milling deformation of the thin wall of the open part as claimed in claim 3, wherein the clamping driving member is a clamping cylinder, the body of the clamping cylinder is disposed on the auxiliary clamping seat, a clamping rod is movably disposed in the body of the clamping cylinder up and down, the clamping arm is of an L-shaped structure and includes a clamping installation end and a clamping end perpendicular to the clamping installation end, the upper end of the clamping rod extends out of the body of the clamping cylinder and is rotatably connected with the clamping installation end to tilt the clamping end up and down, a limiting seat is convexly disposed on the upper end of the body of the clamping cylinder, the front end surface of the limiting seat is connected with the front end surface of the clamping installation end through a front rotation limiting plate, and two ends of the front rotation limiting plate are rotatably mounted on the limiting seat and the mounting clamping seat respectively The end of the clamping end is vertically bent towards the clamping direction to form a clamping part; after opening part owner location clamping was accomplished, through the adjustment support ejector pin the upper and lower position realize the supporting part support the lower lateral wall that sets up at the thin wall of opening part, clamping ejector pin upward movement preceding rotation limiting plate with the back combined action who rotates the limiting plate under, the clamping arm lock rotate, make clamping portion clamping to the last lateral wall of thin wall on, the realization is fixed the clamping of thin wall.

6. The auxiliary clamping mechanism for preventing the milling deformation of the thin wall of the opening part as claimed in claim 5, wherein the lower end surface of the clamping part is a clamping end surface, and a plurality of clamping teeth are arranged on the clamping end surface; when the clamping is fixed, the lower end surface of the clamping tooth is tightly attached to the upper side wall of the thin wall.

7. The auxiliary clamping mechanism for preventing the milling deformation of the thin wall part of the open part as claimed in claim 5, wherein the clamping mounting end is provided with a mounting groove for mounting the upper end of the clamping ejector rod, a rotating connecting shaft is mounted in the mounting groove in a penetrating manner, the upper end of the clamping ejector rod is provided with a rotating mounting hole matched with the rotating connecting shaft, and the rotating connecting shaft is matched with the rotating mounting hole to realize the rotatable connection between the clamping mounting end and the clamping ejector rod.

8. The auxiliary clamping mechanism for preventing milling deformation at the thin wall of the open part as claimed in claim 5, wherein the limiting seat is provided with a lower connecting shaft in a penetrating manner from front to back, the lower ends of the front rotation limiting plate and the rear rotation limiting plate are respectively rotatably mounted at the front end and the rear end of the lower connecting shaft extending outwards, the clamping mounting end is provided with an upper connecting shaft in a penetrating manner from front to back, and the upper ends of the front rotation limiting plate and the rear rotation limiting plate are respectively rotatably mounted at the front end and the rear end of the upper connecting shaft extending outwards.

9. An auxiliary clamping mechanism for preventing milling deformation at a thin wall of an opening part as claimed in claim 5, wherein a supporting wall is arranged behind the clamping arm, the supporting wall is arranged on the auxiliary clamping seat, a guide block is arranged between the supporting wall and the clamping mounting end, the guide block is fixedly arranged on the supporting wall, a guide groove is arranged on the rear end face of the clamping mounting end, a guide part matched with the guide groove is convexly arranged on the guide block, and the guide part is slidably arranged in the guide groove.