CN114734077A

CN114734077A - Tool for machining welding lap joint

Info

Publication number: CN114734077A
Application number: CN202210465708.9A
Authority: CN
Inventors: 卢成勇; 刘建全; 唐海翔; 胡浩; 郝峰; 赖祥华; 冯攀; 李国燕
Original assignee: Sichuan Jian'an Industrial Ltd
Current assignee: Sichuan Jian'an Industrial Ltd
Priority date: 2022-04-29
Filing date: 2022-04-29
Publication date: 2022-07-12

Abstract

The invention provides a tool for machining a welding lap joint opening, which comprises a base and a driving motor arranged on the base, wherein a cutter is arranged at the driving end of the driving motor; taking a plane rectangular coordinate system as a reference system, and enabling the driving motor to do linear reciprocating motion along the x axis through the linear motion guide device; the device also comprises a clamp arranged on the base; two driving motors are arranged at intervals along the x-axis direction, and a cutter on one driving motor is arranged opposite to a cutter on the other driving motor; the clamp is positioned between the two cutters and used for clamping the front support and the rear support. The welding joint openings on the front support and the rear support of the front auxiliary frame can be machined simultaneously. The method has the advantages of simple operation, simultaneous processing, improvement of processing efficiency and the like.

Description

Tool for machining welding lap joint

Technical Field

The invention belongs to the technical field of machining, and particularly relates to a tool for machining a welding lap joint.

Background

The subframe of an automobile is a member for connecting a suspension to a vehicle body. The auxiliary frame is located at the front end of the automobile and is called a front auxiliary frame and the rear auxiliary frame is located at the rear end of the automobile. Typically, the front subframe includes a pair of front and rear supports connected by a longitudinal member. Therefore, lap joints for welding with the longitudinal beams need to be processed on the front support and the rear support respectively. The common method is to adopt a vertical milling machine to complete the processing of the welding lap joint on the front support or the rear support. But the welding lap joint openings on the front support and the rear support cannot be simultaneously machined.

Disclosure of Invention

The invention aims to provide a tool for machining welding lap joints, which can be used for machining the welding lap joints on a front support and a rear support of a front auxiliary frame at the same time.

The technical scheme adopted by the invention for solving the technical problems is as follows: the tool for machining the welding lap joint comprises a base and a driving motor arranged on the base, wherein a cutter is arranged at the driving end of the driving motor; taking a plane rectangular coordinate system as a reference system, and enabling the driving motor to do linear reciprocating motion along the x axis through a linear motion guide device; the clamp is arranged on the base; two driving motors are arranged at intervals along the x-axis direction, and a cutter on one driving motor is arranged opposite to a cutter on the other driving motor;

the fixture is positioned between the two cutters and used for clamping the front support and the rear support.

Further, a mounting seat is mounted on the base, a vertical plate is mounted on the mounting seat, a mounting space is formed between the mounting seat and the vertical plate, and cutters on the driving motor are arranged corresponding to the mounting space;

the clamp comprises a first clamping unit, a second clamping unit and a third clamping unit;

the first clamping unit is arranged on the mounting seat;

the second clamping unit and the third clamping unit are arranged on the vertical plate; the number of the third clamping units is two, and the two third clamping units are arranged at intervals along the x-axis direction; the second clamping unit is positioned between the two third clamping units;

the first clamping unit, the second clamping unit and the third clamping unit are positioned in the installation space;

the first clamping unit is matched with one third clamping unit and used for clamping the front support; the second clamping unit is matched with the other third clamping unit and used for clamping the rear support.

Further, the first clamping units are provided in plurality and are uniformly arranged at intervals along the x-axis direction;

the second clamping units are arranged in two numbers, and the two second clamping units are arranged at intervals along the x-axis direction.

Further, the first clamping unit comprises a first pressing claw and a first supporting piece which are matched with each other, and the first pressing claw and the first supporting piece are both installed on the installation seat.

Further, the second clamping unit comprises a second pressing claw and a second supporting piece which are matched with each other, and the second pressing claw and the second supporting piece are both installed on the vertical plate.

Further, the third clamping unit comprises a third pressing claw and a third supporting piece which are matched with each other, and the third pressing claw and the third supporting piece are installed on the vertical plate.

Further, the mounting seat comprises a bottom plate and a base which are sequentially arranged from top to bottom;

the bottom ends of the vertical plates are connected with the bottom plate, and the first clamping unit is arranged on the bottom plate; the base is arranged on the base;

the base is connected with a vertically arranged sleeve, and a through hole for the sleeve to pass through is arranged on the bottom plate in a penetrating manner; the bottom plate and the base are fastened through a limiting bolt arranged in the sleeve;

and wedge blocks are padded in the gap between the bottom plate and the base.

Furthermore, the device also comprises a stop block which is vertically arranged, wherein the stop block is positioned at one end of the mounting seat far away from the vertical plate;

the upper end of the stop block is detachably connected with the bottom plate through a first fastening bolt, and the lower end of the stop block is detachably connected with the base through a second fastening bolt;

and a cushion block is arranged between the stop block and the bottom plate.

Compared with the prior art, the invention has the beneficial effects that: the invention provides a tool for machining welding lap joints, which can simultaneously machine the welding lap joints on a front support and a rear support of a front subframe. The method has the advantages of simple operation, simultaneous processing, improvement of processing efficiency and the like.

Drawings

FIG. 1 is a schematic structural view of the present invention for machining a front support and a rear support;

FIG. 2 is a front view of the clip assembly of the present invention;

FIG. 3 is a perspective view of the clip assembly of the present invention;

FIG. 4 is a schematic top view of the clip installation of the present invention;

FIG. 5 is a schematic view of the mounting structure of the sleeve and the limit bolt of the present invention;

reference numerals: 1-a base; 2-driving the motor; 201-a cutter; 3-a front support; 4-rear support; 5-mounting a base; 501-a bottom plate; 502-a base; 6-vertical plate; 7-a first clamping unit; 701-a first pressing claw; 702-a first support; 8-a second clamping unit; 801-second press jaw; 802-a second support; 9-a third clamping unit; 901-third press jaw; 902-a third support; 10-a sleeve; 11-a limit bolt; 12-a wedge block; 13-a stopper; 14-cushion block.

Detailed Description

The invention is further illustrated with reference to the following figures and examples.

The tool for machining the welding lap joint comprises a base 1 and a driving motor 2 installed on the base 1, wherein a cutter 201 is installed at the driving end of the driving motor 2; the driving motor 2 makes linear reciprocating motion along the x axis through a linear motion guide device by taking a plane rectangular coordinate system as a reference system; the clamp is arranged on the base 1; two driving motors 2 are arranged at intervals along the x-axis direction, wherein a cutter 201 on one driving motor 2 is arranged opposite to a cutter 201 on the other driving motor 2; the clamp is located between two tools 201 and is used for clamping the front support 3 and the rear support 4.

The base 1 provides the installation support for driving motor 2, installs linear motion guider between driving motor 2 and the base 1. The linear motion guide device is in the prior art, such as a ball screw pair, a sliding block and sliding groove structure and the like. The power device provides power for the linear reciprocating motion of the driving motor 2 along the x-axis direction. When the linear motion guide device is a ball screw pair, the power device is a motor; when the linear motion guide device is of a slide block and sliding groove structure, the power device is a hydraulic driving device. The fixture is used for clamping the front support 3 and the rear support 4, a first welding overlapping opening is machined on the front support 3 by the cutter 201 on one driving motor 2, and a second welding overlapping opening is machined on the rear support 4 by the cutter on the other driving motor 2. The feeding and retracting are realized by the existing control system. And meanwhile, the machining efficiency is improved.

The fixture has various structural forms, and only the stable clamping of the front support 3 and the rear support 4 is required to be ensured. Preferably, the base 1 is provided with an installation seat 5, the installation seat 5 is provided with a vertical plate 6, an installation space is formed between the installation seat 5 and the vertical plate 6, and the cutter 201 on the driving motor 2 is arranged corresponding to the installation space; the clamp comprises a first clamping unit 7, a second clamping unit 8 and a third clamping unit 9; the first clamping unit 7 is arranged on the mounting seat 5; the second clamping unit 8 and the third clamping unit 9 are arranged on the vertical plate 6; two third clamping units 9 are arranged, and the two third clamping units 9 are arranged at intervals along the x-axis direction; the second clamping unit 8 is positioned between the two third clamping units 9; the first clamping unit 7, the second clamping unit 8 and the third clamping unit 9 are positioned in the installation space; the first clamping unit 7 is matched with one third clamping unit 9 and used for clamping the front support 3; the second clamping unit 8 is matched with another third clamping unit 9 and used for clamping the rear support 4. The mounting seat 5 provides mounting support for the first clamping unit 7, and the riser 6 provides mounting support for the second clamping unit 8 and the third clamping unit 9. The front mount 3 is stably placed in the installation space by the clamping of the front mount 3 by the first clamping unit 7 and one of the third clamping units 9. The rear holder 4 is stably placed in the installation space by the clamping of the rear holder 4 by the second clamping unit 8 and the other third clamping unit 9.

Because the front support of the front auxiliary frame comprises a left front support and a right front support, and the rear support of the front auxiliary frame comprises a left rear support and a right rear support, the left front support, the right front support, the left rear support and the right rear support can be conveniently processed. Preferably, the first clamping units 7 are provided in plurality, and the first clamping units 7 are uniformly arranged at intervals along the x-axis direction; the number of the second clamping units 8 is two, and the two second clamping units 8 are arranged at intervals along the x-axis direction. The left front support or the right front support is clamped by selecting a third clamping unit 9 at different positions and a first clamping unit 7 arranged corresponding to the third clamping unit 9. The left rear support or the right rear support is clamped by selecting a third clamping unit 9 at a different position and a second clamping unit 8 arranged adjacent to the third clamping unit 9. Specifically, if the third clamping unit 9 positioned on the left side and the second clamping unit 8 arranged adjacent to the third clamping unit are selected to clamp the left rear support together; the right third clamping unit 9 and the first clamping unit 7 arranged in correspondence thereto clamp the right front support together.

The first clamping unit 7 has various structural forms, and preferably, the first clamping unit 7 comprises a first pressing claw 701 and a first supporting member 702 which are used in a matching way, and the first pressing claw 701 and the first supporting member 702 are both installed on the installation seat 5. The workpiece to be processed is placed between the first pressing claw 701 and the first support 702, and the workpiece to be processed is clamped through the cooperation of the first pressing claw 701 and the first support 702.

The second clamping unit 8 has various structural forms, and preferably, the second clamping unit 8 comprises a second pressing claw 801 and a second support 802 which are matched with each other, and the second pressing claw 801 and the second support 802 are both installed on the vertical plate 6. The workpiece to be machined is placed between the second pressing claw 801 and the second supporting piece 802, and the workpiece to be machined is clamped through the cooperation of the second pressing claw 801 and the second supporting piece 802.

The third clamping unit 9 has various structural forms, and preferably, the third clamping unit 9 comprises a third press claw 901 and a third support 902 which are matched with each other, and the third press claw 901 and the third support 902 are both installed on the riser 6. The workpiece to be processed is placed between the third pressing claw 901 and the third support 902, and the workpiece to be processed is clamped through the cooperation of the third pressing claw 901 and the third support 902.

The first pressing claw 701, the second pressing claw 801 and the third pressing claw 901 may be a manual clamping fixture, a pneumatic clamping fixture, an electromagnetic fixture, and the like, preferably a hydraulic clamping fixture, and are all in the structure in the prior art. The first support 702, the second support 802, and the third support 902 may be either rod-shaped structures or block-shaped structures.

In order to adjust the processing height of the workpiece to be processed, preferably, the mounting base 5 includes a bottom plate 501 and a base 502 which are sequentially arranged from top to bottom; the bottom end of the vertical plate 6 is connected with the bottom plate 501, and the first clamping unit 7 is installed on the bottom plate 501; the base 502 is mounted on the base 1; the base 502 is connected with a vertically arranged sleeve 10, and a through hole for the sleeve 10 to pass through is arranged on the bottom plate 501 in a penetrating manner; the bottom plate 501 and the base 502 are fastened by a limit bolt 11 installed in the sleeve 10; wedge blocks 12 are arranged in a gap between the bottom plate 501 and the base 502 in a cushioning mode. The bottom end of the sleeve 10 is welded and fixed with the upper surface of the base 502, the sleeve 10 is in sliding fit with the bottom plate 501, the bottom plate 501 is adjusted to a proper height by arranging the wedge blocks 12 between the base 502 and the bottom plate 501 in a cushioning mode, and then the limiting bolts 11 are installed in the sleeve 10 to fasten the bottom plate 501 and the base 502. The bottom plate 501 provides mounting support for the first clamping unit 7. The vertical plate 6 is connected with the bottom plate 501 to form an L-shaped structure, which can be welded or integrally formed.

Preferably, the device further comprises a vertically arranged stop block 13, wherein the stop block 13 is positioned at one end of the mounting seat 5 far away from the vertical plate 6; the upper end of the stop block 13 is detachably connected with the bottom plate 501 through a first fastening bolt, and the lower end of the stop block is detachably connected with the base 502 through a second fastening bolt; a cushion block 14 is arranged between the stop block 13 and the bottom plate 501. And a cushion block 14 is arranged between the stop block 13 and the bottom plate 501, so that the rigidity is increased, and the structural stability is improved.

The above is a specific embodiment of the present invention, and it can be seen from the implementation process that the present invention provides a tool for processing a welding joint, which can simultaneously process welding joints on a front support and a rear support of a front subframe. The method has the advantages of simple operation, simultaneous processing, improvement of processing efficiency and the like.

Claims

1. The tool for machining the welding lap joint comprises a base (1) and a driving motor (2) installed on the base (1), wherein a cutter (201) is installed at the driving end of the driving motor (2); the driving motor (2) is in linear reciprocating motion along the x axis through a linear motion guide device by taking a plane rectangular coordinate system as a reference system; the clamp is arranged on the base (1); the method is characterized in that: two driving motors (2) are arranged at intervals along the x-axis direction, wherein a cutter (201) on one driving motor (2) is arranged opposite to a cutter (201) on the other driving motor (2);

the clamp is positioned between the two cutters (201) and is used for clamping the front support (3) and the rear support (4).

2. A tooling for manufacturing a weld lap joint as set forth in claim 1, wherein: the cutting tool is characterized in that a mounting seat (5) is mounted on the base (1), a vertical plate (6) is mounted on the mounting seat (5), a mounting space is formed between the mounting seat (5) and the vertical plate (6), and the cutting tool (201) on the driving motor (2) is arranged corresponding to the mounting space;

the clamp comprises a first clamping unit (7), a second clamping unit (8) and a third clamping unit (9);

the first clamping unit (7) is arranged on the mounting seat (5);

the second clamping unit (8) and the third clamping unit (9) are arranged on the vertical plate (6); two third clamping units (9) are arranged, and the two third clamping units (9) are arranged at intervals along the x-axis direction; the second clamping unit (8) is positioned between the two third clamping units (9);

the first clamping unit (7), the second clamping unit (8) and the third clamping unit (9) are positioned in the installation space;

the first clamping unit (7) is matched with one third clamping unit (9) and is used for clamping the front support (3); the second clamping unit (8) is matched with another third clamping unit (9) and is used for clamping the rear support (4).

3. A tooling for manufacturing a weld lap joint as set forth in claim 2, wherein: the first clamping units (7) are arranged in a plurality, and the first clamping units (7) are uniformly arranged at intervals along the x-axis direction;

the number of the second clamping units (8) is two, and the two second clamping units (8) are arranged at intervals along the x-axis direction.

4. A tooling for manufacturing a weld lap joint as set forth in claim 2, wherein: the first clamping unit (7) comprises a first pressing claw (701) and a first supporting piece (702) which are matched to use, and the first pressing claw (701) and the first supporting piece (702) are both installed on the installation seat (5).

5. A tooling for manufacturing a weld lap joint as set forth in claim 2, wherein: the second clamping unit (8) comprises a second pressing claw (801) and a second support (802) which are matched with each other, and the second pressing claw (801) and the second support (802) are both installed on the vertical plate (6).

6. A tooling for manufacturing a weld lap joint as set forth in claim 2, wherein: the third clamping unit (9) comprises a third pressing claw (901) and a third support (902) which are matched, and the third pressing claw (901) and the third support (902) are both installed on the vertical plate (6).

7. A tooling for manufacturing a weld lap joint as set forth in claim 2, wherein: the mounting seat (5) comprises a bottom plate (501) and a base (502) which are sequentially arranged from top to bottom;

the bottom end of the vertical plate (6) is connected with the bottom plate (501), and the first clamping unit (7) is installed on the bottom plate (501); the base (502) is arranged on the base (1);

the base (502) is connected with a vertically arranged sleeve (10), and a through hole for the sleeve (10) to pass through is arranged on the bottom plate (501) in a penetrating manner; the bottom plate (501) and the base (502) are fastened through a limiting bolt (11) arranged in the sleeve (10);

wedge blocks (12) are padded in a gap between the bottom plate (501) and the base (502).

8. A tooling for manufacturing a weld lap joint as set forth in claim 7, wherein: the vertical type mounting device is characterized by further comprising a stop block (13) which is vertically arranged, wherein the stop block (13) is located at one end, far away from the vertical plate (6), of the mounting seat (5);

the upper end of the stop block (13) is detachably connected with the bottom plate (501) through a first fastening bolt, and the lower end of the stop block is detachably connected with the base (502) through a second fastening bolt;

and a cushion block (14) is arranged between the stop block (13) and the bottom plate (501).