A laser welded clamp

Abstract

The utility model discloses a kind of clamps of laser welding, it is related to clamp technical field, including main support, main support is provided with clamp body and the compression solid component for compressing solid workpiece;Multiple positioning pins are provided on clamp body, and the space formed by multiple positioning pins is enclosed on clamp body Same as workpiece contour;Cam and rotary telescopic piece are further provided on clamp body, and rotary telescopic piece is used to drive cam to rotate and lift action;Among them, the circumferential surface of cam has protruding structure, when placing workpiece, the protruding structure of multiple cam can extrude workpiece;The utility model can solve the problem of workpiece misplacement, leading to the problem of butt welding error, improve welding quality, and clamping efficiency is high, electric welding and continuous welding are integrated in same station, can adapt to different processing scheme, reduce clamping time, reduce the debugging to equipment, and then improve overall production efficiency.

Description

Technical Field

[0001] This utility model relates to the field of fixture technology, and in particular to a laser welding fixture. Background Technology

[0002] With the continuous development of the manufacturing industry, the demand for welding thin-walled metal parts is increasing. For example, when welding two box-shaped thin-walled workpieces, the welding quality directly depends on the alignment and flatness of the upper and lower workpieces, and the fixture is the key equipment to achieve this alignment requirement. Currently, most metal thin-walled component welding fixtures used in the industry employ manually adjustable locating pins or simple pneumatic clamping structures. Because thin-walled metal components have poor rigidity and are easily deformed by external forces, manual alignment makes it difficult to accurately control the flatness of the upper and lower workpieces, easily leading to welding misalignment, weld displacement, and poor fusion, severely affecting welding quality. Furthermore, the process of manually adjusting positioning parameters and repeated calibration is cumbersome, and clamping a single workpiece takes a long time, significantly reducing overall welding production efficiency and failing to meet the high-efficiency requirements of mass production.

[0003] Therefore, it is necessary to propose a new technical solution to address the above problems. Utility Model Content

[0004] To overcome the shortcomings mentioned above, this utility model aims to provide a technical solution that can solve the aforementioned problems.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a laser welding fixture, comprising a main support, wherein the main support is provided with a fixture body and a clamping assembly for clamping the workpiece; The fixture body is provided with a plurality of positioning pins, and the space formed by the plurality of positioning pins on the fixture body is the same as the outline of the workpiece. The fixture body is also provided with a cam and a rotary telescopic component, the rotary telescopic component being used to drive the cam to rotate and lift. The cam has a protruding structure on its circumferential surface, and when a workpiece is placed, the protruding structures of multiple cams can compress the workpiece.

[0006] As a further embodiment of this utility model: a rotary motor is also provided on the main support, which can drive the fixture body to rotate.

[0007] As a further embodiment of this utility model: the cam includes a thick edge and a thin edge. When placing a workpiece, the thick edge of the cam can squeeze the workpiece, and through the drive of the rotating telescopic component, the cam can be lowered while rotating, and the thick edge can be moved away from the workpiece.

[0008] As a further aspect of this utility model: the upper end circle of the cam gradually decreases in diameter upwards.

[0009] As a further embodiment of this utility model: a horizontal support is provided on the main support, and the clamping assembly includes a clamping cylinder installed on the horizontal support. The telescopic shaft at the lower end of the clamping cylinder passes through the horizontal support and is connected to a clamping block.

[0010] As a further embodiment of this utility model: the rotary telescopic component includes a rotary telescopic cylinder, the rotary telescopic cylinder is provided with a rotary telescopic shaft, the rotary telescopic shaft passes through and extends to the fixture body, and the cam is provided at the upper end of the rotary telescopic shaft.

[0011] As a further embodiment of this utility model: the cam is an annular sleeve, which is sleeved on the upper end of the rotating telescopic shaft.

[0012] Compared with the prior art, the beneficial effects of this technical solution are as follows: the workpiece 1 is positioned on the fixture body by the positioning pin and cam. Then, during the placement of the workpiece 2, its side is simultaneously squeezed by the thick edges of multiple cams, so that the thin walls of workpiece 1 and workpiece 2 are aligned vertically. Then, the clamping component clamps the workpiece 2, so that workpiece 2 and workpiece 1 fit tightly together. Then, the rotating telescopic component is activated to drive the cam to rotate and descend. At the same time, the height of the positioning pin is lower than the welding position line, so that the welding position line is fully exposed. At this time, the positioning pin fixes the position of workpiece 1, and the clamping component keeps workpiece 2 fixed and tightly fitted to workpiece 1. Then, the laser welding process is used to continuously weld the welding position line of workpiece 1 and workpiece 2. After the welding is completed, the clamping component releases the clamping of workpiece 2, and then the welded complete workpiece is taken out. Then, the rotating telescopic component drives the cam to rotate and rise to reset. When the welding scheme used between workpiece 1 and workpiece 2 is spot welding, after workpiece 1 and workpiece 2 are placed and fixed, the positioning pins and cams are set at intervals, and workpiece 1 and workpiece 2 can be welded in the gap between each positioning pin and cam. After the welding is completed, the pressure component is activated to release the pressure on workpiece 2, the complete workpiece after welding is taken out, and then the telescopic component is rotated to drive the cam to rotate and rise to reset. In summary, this utility model can solve the problem of workpiece misalignment leading to welding errors, improve welding quality, and has high clamping efficiency. It integrates electric welding and continuous welding into the same workstation, can adapt to different processing schemes, reduces clamping time, reduces equipment debugging, and thus improves overall production efficiency.

[0013] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the structure of this utility model when clamping a workpiece; Figure 3 This is a schematic diagram of the main body of the fixture of this utility model; Figure 4 yes Figure 3 Enlarged schematic diagram of a local structure at point A; The corresponding labels in the attached diagram are explained as follows: 1. Main support; 2. Fixture body; 3. Pressure assembly; 31. Pressure cylinder; 32. Pressure block; 4. Positioning pin; 5. Cam; 51. Thick edge; 52. Thin edge; 6. Rotary telescopic component; 61. Rotary telescopic cylinder; 62. Rotary telescopic shaft; 7. Rotary motor; 8. Horizontal support. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0017] Please see Figure 1-4 A laser welding fixture includes a main support 1, on which a fixture body 2 and a clamping component 3 for clamping the workpiece are disposed; The fixture body 2 is provided with multiple positioning pins 4 and multiple cams 5. The space formed by the multiple positioning pins 4 and multiple cams 5 on the fixture body 2 is adapted to the workpiece contour. The fixture body 2 is also provided with a rotary telescopic component 6, which is used to drive the cam 5 to rotate and lift. Among them, the cam 5 has a protruding structure on its circumferential surface. When placing the workpiece, the protruding structures of multiple cams 5 can squeeze the workpiece.

[0018] Specifically, such as Figure 2The workpieces are placed as shown, consisting of two box-shaped workpieces, one at the bottom ("Workpiece 1") and the other at the top ("Workpiece 2"). First, Workpiece 1 is placed on the fixture body 2, positioned using multiple locating pins 4 and cams 5. Next, Workpiece 2 is placed on top of Workpiece 1. During this placement, its sides are simultaneously compressed by the protruding structures of multiple cams 5, aligning the thin walls of Workpiece 1 and Workpiece 2 vertically. Then, the clamping assembly 3 presses down on Workpiece 2, ensuring a tight fit between it and Workpiece 1. Subsequently, the rotating telescopic component 6 is activated, causing the cams 5 to rotate and descend. During the rotation and descent of the cams 5, not only at its highest point... The positioning pin 4 is lower than the welding position line of workpiece 1 and workpiece 2, and its protruding structure is far away from and does not squeeze workpiece 1 and workpiece 2. The height of the positioning pin 4 is lower than the upper end surface of workpiece 1 (lower than the welding position line), so that the welding position line is fully exposed. At this time, the positioning pin 4 fixes the position of workpiece 1, and the clamping component 3 clamps workpiece 2 to keep it fixed and tightly attached to workpiece 1. Then, the laser welding process is used to continuously weld the welding position line of workpiece 1 and workpiece 2, thereby completing the welding operation of workpiece 1 and workpiece 2. Finally, the clamping component 3 is activated to release the clamping of workpiece 2, and then the complete workpiece after welding is taken out. Then, the telescopic component 6 is rotated to drive the cam 5 to rotate and rise to reset. In one embodiment, when the welding scheme used between workpiece 1 and workpiece 2 is spot welding, after workpiece 1 and workpiece 2 are placed and fixed, the positioning pin 4 and cam 5 are set at intervals, and workpiece 1 and workpiece 2 can be welded in the gap between each positioning pin 4 and cam 5. After the welding is completed, the pressure fixing component 3 is activated to release the pressure on workpiece 2, and the complete workpiece after welding is taken out. Then, the telescopic component 6 is rotated to drive the cam 5 to rotate and rise to reset. In summary, this utility model can solve the problem of workpiece misalignment leading to welding errors, improve welding quality, and has high clamping efficiency. It integrates electric welding and continuous welding into the same workstation, can adapt to different processing schemes, reduces clamping time, reduces equipment debugging, and thus improves overall production efficiency.

[0019] Based on the above embodiments, it is further proposed that a rotary motor 7 is also provided on the main support 1, which can drive the fixture body 2 to rotate.

[0020] Specifically, after workpiece 1 and workpiece 2 are clamped and fixed, the rotary motor 7 drives the fixture body 2 and the workpiece to rotate, enabling the laser welding equipment to weld at different positions, further improving welding efficiency, and avoiding workpiece misalignment caused by manual intervention, thus further improving welding quality. Among them, the rotary motor 7 is a servo motor, which is mounted on the main bracket 1 and located at the lower end of the fixture body 2, with its output shaft fixed to the bottom of the fixture body 2.

[0021] Based on the above embodiments, it is further proposed that the cam 5 includes a thick edge 51 and a thin edge 52. When placing a workpiece, the thick edge 51 of the cam 5 can squeeze the workpiece, and through the drive of the rotating telescopic member 6, the cam 5 can be lowered while rotating, and the thick edge 51 can be moved away from the workpiece.

[0022] Specifically, when workpiece 2 is placed, the thick edges 51 of multiple cams 5 simultaneously press workpiece 1 and workpiece 2, aligning workpiece 1 and workpiece 2 vertically. After workpiece 2 is pressed by the pressing assembly 3, the drive of the rotating telescopic component 6 causes the cams 5 to rotate and descend, thereby moving the thick edges 51 away from the workpiece and the thin edges 52 towards the workpiece, thus releasing the pressing and limiting effect on the workpiece.

[0023] Based on the above embodiments, it is further proposed that the upper end circle of the cam 5 gradually decreases in diameter.

[0024] Specifically, during the process of placing workpiece 1 and workpiece 2, the upper end of cam 5 gradually narrows in diameter, forming an inclined surface at the upper end of cam 5. The inclined surface formed on the thin-walled contact cam 5 of workpiece 1 and workpiece 2 allows workpiece 1 and workpiece 2 to smoothly enter the side of cam 5. As the diameter of cam 5 increases, it squeezes the sides of workpiece 1 and workpiece 2 to achieve vertical alignment of workpiece 1 and workpiece 2.

[0025] Based on the above embodiments, it is further proposed that the rotary telescopic component 6 includes a rotary telescopic cylinder 61, a rotary telescopic shaft 62 is provided on the rotary telescopic cylinder 61, the rotary telescopic shaft 62 passes through and extends to the clamp body 2, and the cam 5 is provided at the upper end of the rotary telescopic shaft 62.

[0026] Specifically, the rotary telescopic cylinder 61 can drive the rotary telescopic shaft 62 to rotate while descending, such as by 90° or 180°. In this embodiment, the effect after rotation is sufficient to ensure that the thick edge moves away and no longer squeezes the workpiece.

[0027] Based on the above embodiments, it is further proposed that the cam 5 is an annular sleeve and is sleeved on the upper end of the rotary telescopic shaft 62.

[0028] Based on the above embodiments, it is further proposed that a horizontal support 8 is provided on the main support 1, and the clamping assembly 3 includes a clamping cylinder 31 installed on the horizontal support 8. The telescopic shaft at the lower end of the clamping cylinder 31 passes through the horizontal support 8 and is connected to a pressure block 32.

[0029] Specifically, the horizontal support 8 provides a solid mounting base for the clamping cylinder 31. The activation of the clamping cylinder 31 can drive the pressure block 32 to move up and down, thereby achieving the clamping or release of the workpiece 2. Preferably, the connection between the pressure block 32 and the telescopic shaft of the pressure cylinder 31 is a rotatable connection, which ensures that the pressure block 32 can rotate along with the rotary motor 7 when it drives the fixture body 2 and the workpiece to rotate. The rotatable connection can be a bearing connection.

[0030] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A laser welding fixture, characterized in that, It includes a main support (1), on which a clamp body (2) and a clamping assembly (3) for clamping the workpiece are provided. The fixture body (2) is provided with a plurality of positioning pins (4), and the space formed by the plurality of positioning pins (4) on the fixture body (2) is the same as the outline of the workpiece. The clamp body (2) is also provided with a cam (5) and a rotary telescopic component (6), the rotary telescopic component (6) being used to drive the cam (5) to rotate and lift. The circumferential surface of the cam (5) has a protruding structure, and when the workpiece is placed, the protruding structures of the multiple cams (5) can squeeze the workpiece.

2. The laser welding fixture according to claim 1, characterized in that, The main support (1) is also equipped with a rotary motor (7), which can drive the fixture body (2) to rotate.

3. The laser welding fixture according to claim 2, characterized in that, The cam (5) includes a thick edge (51) and a thin edge (52). When placing a workpiece, the thick edge (51) of the cam (5) can squeeze the workpiece, and the cam (5) can be lowered while rotating by the drive of the rotating telescopic member (6), and the thick edge (51) can be moved away from the workpiece.

4. The laser welding fixture according to claim 3, characterized in that, The upper end circle of the cam (5) gradually decreases in diameter.

5. The laser welding fixture according to any one of claims 1-4, characterized in that, The main support (1) is provided with a horizontal support (8), and the pressure assembly (3) includes a pressure cylinder (31) installed on the horizontal support (8). The telescopic shaft at the lower end of the pressure cylinder (31) passes through the horizontal support (8) and is connected to a pressure block (32).

6. The laser welding fixture according to claim 5, characterized in that, The rotary telescopic component (6) includes a rotary telescopic cylinder (61), on which a rotary telescopic shaft (62) is provided. The rotary telescopic shaft (62) passes through and extends to the fixture body (2), and the cam (5) is provided at the upper end of the rotary telescopic shaft (62).

7. The laser welding fixture according to claim 6, characterized in that, The cam (5) is an annular sleeve and is fitted onto the upper end of the rotary telescopic shaft (62).

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