Tooling for processing a weld lap joint

Abstract

The application provides a tool for processing a welding lap joint, which comprises a base, a driving motor installed on the base, and a cutter installed on a driving end of the driving motor; a planar rectangular coordinate system is used as a reference system, the driving motor moves linearly along an x-axis through a linear motion guide device; a clamp is installed on the base; two driving motors are arranged at intervals along the x-axis direction, and the cutter on one of the driving motors is arranged towards the cutter on the other driving motor; the clamp is located between the two cutters and is used for clamping a front support and a rear support. The tool can simultaneously process the welding lap joints on the front support and the rear support of a front subframe. The tool has the advantages of simple operation, simultaneous processing, improved processing efficiency and the like.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of machining, and particularly relates to a tool for machining a welding lap joint. BACKGROUND

[0002] The subframe of an automobile is a component for connecting a suspension and a vehicle body. The one located at the front end of the automobile is called a front subframe, and the one located at the rear end of the automobile is called a rear subframe. Generally, the front subframe comprises a pair of front supports and rear supports arranged in pairs, and the front supports and the rear supports are connected by a longitudinal beam. Therefore, a lap joint for welding with the longitudinal beam needs to be machined on each of the front supports and the rear supports. The usual way is to use a vertical milling machine to complete the machining of the welding lap joint on the front supports or the rear supports. However, the welding lap joints on the front supports and the rear supports cannot be machined at the same time. SUMMARY

[0003] The present application solves the technical problem of providing a tool for machining a welding lap joint, which can simultaneously machine the welding lap joints on the front supports and the rear supports of a front subframe.

[0004] The technical solution adopted by the present application to solve the technical problem is as follows: a tool for machining a welding lap joint, comprising a base, and a driving motor installed on the base, a cutter being installed on the driving end of the driving motor; taking a planar rectangular coordinate system as a reference system, the driving motor moves along the x-axis direction through a linear motion guide device; further comprising a clamp installed on the base; the driving motors are arranged in pairs along the x-axis direction, and the cutters on one of the driving motors are arranged towards the cutters on the other driving motor.

[0005] The clamp is located between the two cutters and is used to clamp the front supports and the rear supports.

[0006] Further, a mounting seat is installed on the base, a vertical plate is installed on the mounting seat, a mounting space is formed between the mounting seat and the vertical plate, and the cutters on the driving motor are arranged corresponding to the mounting space.

[0007] The clamp comprises a first clamping unit, a second clamping unit and a third clamping unit.

[0008] The first clamping unit is installed on the mounting seat.

[0009] The second clamping unit and the third clamping unit are installed on the vertical plate; the third clamping unit is provided with two, and the two third clamping units are arranged in pairs along the x-axis direction; the second clamping unit is located between the two third clamping units.

[0010] The first clamping unit, the second clamping unit and the third clamping unit are located in the mounting space.

[0011] The first clamping unit cooperates with one of the third clamping units to clamp the front support; and the second clamping unit cooperates with the other third clamping unit to clamp the rear support.

[0012] Further, the first clamping units are arranged uniformly along the x-axis direction.

[0013] The second clamping units are arranged along the x-axis direction.

[0014] Further, the first clamping unit comprises a first pressing jaw and a first supporting piece which are used cooperatively, and the first pressing jaw and the first supporting piece are both mounted on the mounting seat.

[0015] Further, the second clamping unit comprises a second pressing jaw and a second supporting piece which are used cooperatively, and the second pressing jaw and the second supporting piece are both mounted on the vertical plate.

[0016] Further, the third clamping unit comprises a third pressing jaw and a third supporting piece which are used cooperatively, and the third pressing jaw and the third supporting piece are both mounted on the vertical plate.

[0017] Further, the mounting seat comprises a bottom plate and a base which are arranged sequentially from top to bottom.

[0018] The bottom end of the vertical plate is connected with the bottom plate, and the first clamping unit is mounted on the bottom plate; and the base is mounted on the bottom seat.

[0019] The base is connected with a sleeve which is arranged vertically, and the bottom plate is provided with a through hole through which the sleeve passes; and the bottom plate and the base are fastened by a limiting bolt mounted in the sleeve.

[0020] A wedge is arranged in the gap between the bottom plate and the base.

[0021] Further, a stopper which is arranged vertically is further included, and the stopper is located at the end of the mounting seat which is away from the vertical plate.

[0022] The upper end of the stopper is detachably connected with the bottom plate through a first fastening bolt, and the lower end is detachably connected with the base through a second fastening bolt.

[0023] A pad is arranged between the stopper and the bottom plate.

[0024] Compared with the prior art, the present application has the advantages that: the present application provides a tool for processing a welding lap joint, which can process the welding lap joints on the front support and the rear support of the front subframe simultaneously. The tool has the advantages of simple operation, simultaneous processing and improved processing efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0025] Figure 1 is a structural schematic diagram of the front support and the rear support of the present application for processing;

[0026] Figure 2 is a front view structural schematic diagram of the clamp installation of the present application;

[0027] Figure 3 is a three-dimensional structural schematic diagram of the clamp installation of the present application;

[0028] Figure 4 is a top view structural schematic diagram of the clamp installation of the present application;

[0029] Figure 5 is a structural schematic diagram of the sleeve and the limiting bolt installation of the present application;

[0030] Reference signs: 1 - base; 2 - driving motor; 201 - cutter; 3 - front support; 4 - rear support; 5 - mounting seat; 501 - bottom plate; 502 - base; 6 - vertical plate; 7 - first clamping unit; 701 - first pressing jaw; 702 - first supporting piece; 8 - second clamping unit; 801 - second pressing jaw; 802 - second supporting piece; 9 - third clamping unit; 901 - third pressing jaw; 902 - third supporting piece; 10 - sleeve; 11 - limiting bolt; 12 - wedge block; 13 - stop block; 14 - cushion block. DETAILED DESCRIPTION

[0031] The present application is further illustrated below in combination with the drawings and examples.

[0032] The tool for processing the welding lap joint comprises a base 1 and a driving motor 2 installed on the base 1, and a cutter 201 is installed on the driving end of the driving motor 2; a planar rectangular coordinate system is taken as a reference system, the driving motor 2 moves along the x-axis in a linear reciprocating motion through a linear motion guide device; a clamp is further installed on the base 1; the driving motor 2 is arranged in two along the x-axis direction, and the cutter 201 on one of the driving motor 2 is arranged towards the cutter 201 on the other driving motor 2; the clamp is located between the two cutters 201 and is used for clamping a front support 3 and a rear support 4.

[0033] The base 1 provides mounting support for the driving motor 2, and a linear motion guide device is mounted between the base 1 and the driving motor 2. The linear motion guide device is a prior art, such as a ball screw pair, a slider slot structure, etc. 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 a slider slot structure, the power device is a hydraulic drive device. The clamp is used to clamp the front support 3 and the rear support 4, and the tool 201 on one of the driving motors 2 processes a first welding lap joint on the front support 3, and the tool on the other driving motor 2 processes a second welding lap joint on the rear support 4. The feed and the retreat are realized through the existing control system. Simultaneous processing improves processing efficiency.

[0034] The clamp has various structural forms, as long as the stable clamping of the front support 3 and the rear support 4 is ensured. Preferably, the base 1 is provided with a mounting seat 5, the mounting seat 5 is provided with a vertical plate 6, an installation space is formed between the mounting seat 5 and the vertical plate 6, and the tool 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 mounted on the mounting seat 5; the second clamping unit 8 and the third clamping unit 9 are mounted on the vertical plate 6; the third clamping unit 9 is provided with two, and the two third clamping units 9 are arranged along the x-axis direction; the second clamping unit 8 is located between the two third clamping units 9; the first clamping unit 7, the second clamping unit 8 and the third clamping unit 9 are located in the installation space; the first clamping unit 7 cooperates with one of the third clamping units 9 to clamp the front support 3; the second clamping unit 8 cooperates with the other third clamping unit 9 to clamp the rear support 4. The mounting seat 5 provides mounting support for the first clamping unit 7, and the vertical plate 6 provides mounting support for the second clamping unit 8 and the third clamping unit 9. The front support 3 is stably placed in the installation space through the clamping of the first clamping unit 7 and one of the third clamping units 9. The rear support 4 is stably placed in the installation space through the clamping of the second clamping unit 8 and the other third clamping unit 9.

[0035] Since the front support of the front subframe comprises a left front support and a right front support, and the rear support of the front subframe comprises a left rear support and a right rear support, in order to facilitate the machining of the left front support, the right front support, the left rear support and the right rear support. Preferably, the first clamping unit 7 is provided with a plurality of first clamping units 7, and the plurality of first clamping units 7 are uniformly arranged along the x-axis direction; the second clamping unit 8 is provided with two second clamping units 8, and the two second clamping units 8 are arranged along the x-axis direction. By selecting different positions of the third clamping unit 9 and the first clamping unit 7 arranged corresponding to the third clamping unit 9, the left front support or the right front support is clamped. By selecting different positions of the third clamping unit 9 and the second clamping unit 8 arranged adjacent to the third clamping unit 9, the left rear support or the right rear support is clamped. Specifically, if the left third clamping unit 9 and the second clamping unit 8 arranged adjacent to the third clamping unit 9 are selected to clamp the left rear support together; the right third clamping unit 9 and the first clamping unit 7 arranged corresponding to the third clamping unit 9 clamp the right front support together.

[0036] The first clamping unit 7 has a plurality of structural forms, and preferably comprises a first pressing jaw 701 and a first supporting piece 702 used in cooperation, and the first pressing jaw 701 and the first supporting piece 702 are both mounted on the mounting seat 5. The workpiece to be machined is placed between the first pressing jaw 701 and the first supporting piece 702, and the workpiece to be machined is clamped by the cooperation of the first pressing jaw 701 and the first supporting piece 702.

[0037] The second clamping unit 8 has a plurality of structural forms, and preferably comprises a second pressing jaw 801 and a second supporting piece 802 used in cooperation, and the second pressing jaw 801 and the second supporting piece 802 are both mounted on the vertical plate 6. The workpiece to be machined is placed between the second pressing jaw 801 and the second supporting piece 802, and the workpiece to be machined is clamped by the cooperation of the second pressing jaw 801 and the second supporting piece 802.

[0038] The third clamping unit 9 has a plurality of structural forms, and preferably comprises a third pressing jaw 901 and a third supporting piece 902 used in cooperation, and the third pressing jaw 901 and the third supporting piece 902 are both mounted on the vertical plate 6. The workpiece to be machined is placed between the third pressing jaw 901 and the third supporting piece 902, and the workpiece to be machined is clamped by the cooperation of the third pressing jaw 901 and the third supporting piece 902.

[0039] The first pressing jaw 701, the second pressing jaw 801 and the third pressing jaw 901 can be a manual clamping clamp, a pneumatic clamping clamp, an electromagnetic clamp, etc., preferably a hydraulic clamping clamp, and all are structures in the prior art. The first supporting piece 702, the second supporting piece 802 and the third supporting piece 902 can be a rod-shaped structure or a block-shaped structure.

[0040] In order to realize the adjustment of the machining height of the workpiece, preferably, the mounting base 5 comprises a bottom plate 501 and a base 502 arranged in sequence 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 installed on the base 1; the sleeve 10 arranged vertically is connected with the base 502, and the through hole for the sleeve 10 to pass through is arranged through the bottom plate 501; the bottom plate 501 and the base 502 are fastened by the limiting bolt 11 installed in the sleeve 10; the gap between the bottom plate 501 and the base 502 is padded with the wedge block 12. 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 the appropriate height by padding the wedge block 12 between the base 502 and the bottom plate 501, then the limiting bolt 11 is installed in the sleeve 10, and the fastening of the bottom plate 501 and the base 502 is realized. 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.

[0041] Preferably, the vertically arranged stop block 13 is located at the end of the mounting base 5 away from the vertical plate 6; the upper end of the stop block 13 is detachably connected with the bottom plate 501 through the first fastening bolt, and the lower end is detachably connected with the base 502 through the second fastening bolt; the gasket 14 is arranged between the stop block 13 and the bottom plate 501. The gasket 14 is installed between the stop block 13 and the bottom plate 501 to increase the rigidity and improve the structural stability.

[0042] The above is the specific embodiment of the present application. As can be seen from the implementation process, the present application provides a tool for machining the welding lap joint, which can simultaneously machine the welding lap joints on the front support and the rear support of the front subframe. It has the advantages of simple operation, simultaneous machining and improved machining efficiency.

Claims

1. A tool for processing a weld joint, comprising a base (1), and a drive motor (2) mounted on the base (1), wherein a tool (201) is mounted on a drive end of the drive motor (2); with a plane rectangular coordinate system as a reference system, the drive motor (2) performs linear reciprocating motion along an x-axis via a linear motion guide device; and further comprising a fixture mounted on the base (1); characterized in that: Two drive motors (2) are arranged at intervals along the x-axis direction, and the tool (201) on one of the drive motors (2) is arranged opposite to the tool (201) on the other drive motor (2); The clamp is located between the two cutting tools (201) and is used to clamp the front support (3) and the rear support (4); 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 a tool (201) on the drive 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 mounted on the mounting seat (5); The second clamping unit (8) and the third clamping unit (9) are mounted on the vertical plate (6); two third clamping units (9) are provided, and the two third clamping units (9) are spaced apart along the x-axis direction; the second clamping unit (8) is located between the two third clamping units (9); The first clamping unit (7), the second clamping unit (8) and the third clamping unit (9) are located in the installation space; The first clamping unit (7) cooperates with one of the third clamping units (9) to clamp the front support (3); the second clamping unit (8) cooperates with the other third clamping unit (9) to clamp the rear support (4); A plurality of the first clamping units (7) are provided, and the plurality of the first clamping units (7) are evenly spaced and arranged along the x-axis direction; Two second clamping units (8) are provided, and the two second clamping units (8) are spaced apart along the x-axis direction; The first clamping unit (7) comprises a first pressing claw (701) and a first supporting member (702) used in conjunction with each other, and the first pressing claw (701) and the first supporting member (702) are both mounted on the mounting seat (5); The second clamping unit (8) comprises a second pressing claw (801) and a second supporting member (802) used in conjunction with each other, and the second pressing claw (801) and the second supporting member (802) are both mounted on the vertical plate (6); The third clamping unit (9) comprises a third pressing claw (901) and a third supporting member (902) used in conjunction with each other, and the third pressing claw (901) and the third supporting member (902) are both mounted on the vertical plate (6).

2. The tool for processing a welding joint according to claim 1, characterized in that: The mounting seat (5) comprises a bottom plate (501) and a base (502) arranged sequentially from top to bottom; The bottom end of the vertical plate (6) is connected to the bottom plate (501), and the first clamping unit (7) is installed on the bottom plate (501); the base (502) is installed on the base (1); A vertically arranged sleeve (10) is connected to the base (502), and a through hole for the sleeve (10) to pass through is provided on the bottom plate (501); the bottom plate (501) and the base (502) are fastened by a limiting bolt (11) installed in the sleeve (10); A wedge (12) is provided in the gap between the bottom plate (501) and the base (502).

3. The tool for processing a welding joint according to claim 2, characterized in that: It also includes a vertically arranged stopper (13), wherein the stopper (13) is located at an end of the mounting seat (5) away from the vertical plate (6); The upper end of the stopper (13) is detachably connected to the bottom plate (501) via a first fastening bolt, and the lower end is detachably connected to the base (502) via a second fastening bolt; A cushion block (14) is provided between the stop block (13) and the bottom plate (501).

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