Laser welding clamp

Abstract

The utility model relates to a laser welding clamp, which belongs to the technical field of laser welding positioning and comprises a welding platform, a first sliding seat and a second sliding seat are symmetrically arranged on the upper side of the welding platform in a sliding mode, and clamping assemblies are arranged on the sides, close to each other, of the first sliding seat and the second sliding seat. Sliding grooves in sliding fit with the first sliding base and the second sliding base correspondingly are formed in the two sides of the welding platform in a penetrating mode, and a driving assembly for driving the first sliding base and the second sliding base to be close to each other and away from each other at the same time is arranged on the lower surface of the welding platform. The first sliding seat and the second sliding seat can be simultaneously driven to be close to each other and far away from each other through the driving assembly, so that an object is simultaneously clamped on two sides, the object can be accurately positioned in the center of the welding platform, the clamping and positioning precision is improved, and the subsequent welding precision is further improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of laser welding positioning, and in particular relates to a laser welding fixture. Background Art

[0002] Laser welding is an efficient and precise welding method that uses high-energy-density lasers as a heat source. Laser welding is one of the important aspects of the application of laser material processing technology. During the welding process, laser radiation heats the surface of the workpiece, and the surface heat diffuses to the inside through heat conduction. By controlling the width, energy, peak power, and repetition frequency of the laser pulse, the workpiece is melted to form a specific molten pool. In the welding process, the objects to be welded must first be positioned, and then the welding machine works to weld.

[0003] For example, in the Chinese utility model with announcement number CN219944936U, named as a positioning tool for a laser welding machine, it includes a platform, a lifting plane is arranged inside the platform, a clamp is matched on the top of the lifting plane, a rotating rod is rotatably connected to the left side of the clamp, a rotating handle is rotatably connected to the left side of the rotating rod, a slider is rotatably connected to the bottom of the rotating handle, and a support plate is fixed to the side wall of the slider. Although the above-mentioned prior art realizes the clamping and positioning of the welding object during laser welding, it requires the handles on both sides of the platform to rotate at the same time to complete the clamping and positioning of the object, and because there is an error in the rotation speed of the handles on both sides, there is an error in the position of the clamping and positioning of the object. In order to make the clamps on both sides close to each other for clamping at the same time, a laser welding fixture is now needed. Utility Model Content

[0004] The purpose of the utility model is to provide a laser welding fixture with simple structure and reasonable design in order to solve the above problems.

[0005] The utility model achieves the above-mentioned purpose through the following technical solutions:

[0006] A laser welding fixture comprises a welding platform, wherein a first slide seat and a second slide seat are symmetrically slidably arranged on the upper side of the welding platform, a clamping assembly is arranged on the side where the first slide seat and the second slide seat are close to each other, and sliding grooves which are respectively slidably matched with the first slide seat and the second slide seat are opened through both sides of the welding platform, and a driving assembly which simultaneously drives the first slide seat and the second slide seat to approach and move away from each other is arranged on the lower surface of the welding platform.

[0007] As a further optimization scheme of the utility model, the clamping assembly includes slots respectively opened on the upper sides of the first slide and the second slide and a clamping plate slidably inserted into the inner side of the slots. One side of the first slide and the second slide is provided with a locking screw that fixes the first slide and the second slide to the slot.

[0008] As a further optimization scheme of the utility model, the driving assembly includes a first push plate fixedly arranged at the bottom of the first slide and a second push plate fixedly arranged at the bottom of the second slide, a first rack is fixedly arranged on one side of the first push plate, a second rack in the opposite direction of the first rack is fixedly arranged on one side of the second push plate, a gear is meshed between the first rack and the second rack, a servo motor for driving the gear to rotate is fixedly arranged on the lower side of the welding platform, and a buffer assembly cooperating with the second push plate and the first push plate is respectively arranged at one end of the first rack and the second rack.

[0009] As a further optimization solution of the utility model, the buffer assembly includes a buffer rod slidingly passing through the second push plate and the first push plate, and a buffer spring connected to the second push plate and the first push plate is fixedly provided at one end of the buffer rod.

[0010] As a further optimization solution of the utility model, a top plate abutting against one end of the buffer spring is fixedly provided at one end of the buffer rod, and through holes slidably matched with the first rack and the second rack are respectively opened on the second push plate and the first push plate.

[0011] As a further optimization solution of the utility model, the clamping plate adopts an arc structure or a plane structure.

[0012] The beneficial effect of the utility model is that in the utility model, by placing the object between the two clamping plates, and then driving the gear to rotate by the servo motor, the first rack and the second rack are brought close to each other, thereby driving the first push plate and the second push plate at both ends to approach each other, so that the first slide and the second slide are brought close to each other, and then the clamping plates on one side of the first slide and the second slide are brought close to each other at the same time, so that the object is clamped on both sides at the same time, the object can be accurately positioned at the center of the welding platform, the accuracy of clamping positioning is improved, and then the accuracy of subsequent welding is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0014] Figure 2 It is a schematic diagram of the overall structure of the utility model when viewed from above;

[0015] Figure 3 This utility model Figure 1 Enlarged view of point A in the middle;

[0016] Figure 4 This utility model Figure 2 Enlarged view of point B in the middle.

[0017] In the figure: 1. welding platform; 2. slide groove; 3. first slide seat; 4. slot; 5. clamping plate; 6. first push plate; 7. first rack; 8. gear; 9. second push plate; 10. servo motor; 11. second rack; 12. buffer assembly; 1201. buffer rod; 1202. buffer spring; 1203. top plate; 1204. through hole; 13. second slide seat; 14. locking screw. DETAILED DESCRIPTION

[0018] The present application is further described in detail below in conjunction with the accompanying drawings. It is necessary to point out here that the following specific implementation methods are only used to further illustrate the present application and cannot be understood as limiting the scope of protection of the present application. Technical personnel in this field can make some non-essential improvements and adjustments to the present application based on the above application content.

[0019] Example

[0020] like Figure 1 , Figure 2 As shown, a laser welding fixture includes a welding platform 1, a first slide 3 and a second slide 13 are symmetrically slidably arranged on the upper side of the welding platform 1, a clamping assembly is arranged on the side where the first slide 3 and the second slide 13 are close to each other, and a slide groove 2 is opened through both sides of the welding platform 1 to slide with the first slide 3 and the second slide 13 respectively, and a driving assembly is arranged on the lower surface of the welding platform 1 to simultaneously drive the first slide 3 and the second slide 13 to move closer to and away from each other. When in use, a laser welding machine (not shown in the figure) can be arranged above the welding platform 1.

[0021] like Figure 1 , Figure 2 , Figure 4As shown, the driving assembly includes a first push plate 6 fixedly arranged at the bottom of the first slide 3 and a second push plate 9 fixedly arranged at the bottom of the second slide 13, a first rack 7 is fixedly arranged on one side of the first push plate 6, a second rack 11 in the opposite direction of the first rack 7 is fixedly arranged on one side of the second push plate 9, a gear 8 is meshed between the first rack 7 and the second rack 11, a servo motor 10 for driving the gear 8 to rotate is fixedly arranged on the lower side of the welding platform 1, a buffer rod 1201 slidingly passing through the second push plate 9 and the first push plate 6, a buffer spring 1202 connected to the second push plate 9 and the first push plate 6 is fixedly arranged at one end of the buffer rod 1201, a top plate 1203 abutting against one end of the buffer spring 1202 is fixedly arranged at one end of the buffer rod 1201, and through holes 1204 slidingly matched with the first rack 7 and the second rack 11 are respectively opened on the second push plate 9 and the first push plate 6. When in use, the servo motor 10 drives the gear 8 to rotate, so that the first rack 7 and the second rack 11 approach each other, and then drives the first push plate 6 and the second push plate 9 at both ends approach each other, so that the first slide 3 and the second slide 13 approach each other, and then the clamping plates on one side of the first slide 3 and the second slide 13 approach each other at the same time, so that the object can be clamped on both sides at the same time, so that the object can be accurately positioned at the center of the welding platform, thereby improving the accuracy of clamping and positioning, and then improving the accuracy of subsequent welding.

[0022] The driving assembly of this embodiment can also use a bidirectional cylinder to simultaneously drive the first slide 3 and the second slide 13 to move closer to and away from each other.

[0023] like Figure 1 , Figure 3 As shown, the clamping assembly includes a card slot 4 respectively provided on the upper side of the first slide 3 and the second slide 13 and a clamping plate 5 slidably inserted into the inner side of the card slot 4. A locking screw 14 is provided on one side of the first slide 3 and the second slide 13 to fix the first slide 3 and the second slide 13 on the card slot 4. In this embodiment, the clamping plate 5 adopts an arc structure. The clamping plate 5 can be replaced according to the shape of the object, and the clamping plate 5 can also be a flat structure. When clamping a round object, one side of the clamping plate 5 with an arc structure is inserted into the inner side of the card slot 4, and then the clamping plate 5 is fixed by the locking screw 14, and the installation of the clamping plate 5 can be completed.

[0024] It should be noted that when using this laser welding fixture, the shape of the clamp 5 is first selected according to the shape of the object to be welded. For example, if the object is round, the clamp 5 with an arc structure is rotated and slidably inserted into the slot 4 on the upper side of the first slide 3 and the second slide 13, and then fixed by the locking screw 14. Next, the object is placed in the center of the welding platform 1, and then the gear 8 is driven to rotate by the servo motor 10, so that the first rack 7 and the second rack 11 are close to each other, and then the first push plate 6 and the second push plate 9 at both ends are driven to approach each other, so that the first slide 3 and the second slide 13 are close to each other, and then the clamps on one side of the first slide 3 and the second slide 13 are close to each other at the same time, so that the object is clamped on both sides at the same time, thereby improving the accuracy of clamping and positioning, and thus improving the accuracy of subsequent laser welding.

[0025] The above-mentioned embodiments only express several implementation methods of the utility model, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the patent of the utility model. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model.

Claims

1. A laser welding fixture, comprising a welding platform (1), characterized in that: The upper side of the welding platform (1) is symmetrically and slidably provided with a first slide seat (3) and a second slide seat (13); a clamping assembly is provided on the side where the first slide seat (3) and the second slide seat (13) are close to each other; both sides of the welding platform (1) are penetrated with slide grooves (2) respectively slidably matched with the first slide seat (3) and the second slide seat (13); the lower surface of the welding platform (1) is provided with a driving assembly for simultaneously driving the first slide seat (3) and the second slide seat (13) to move closer to and away from each other; the clamping assembly includes a slot (4) respectively provided on the upper side of the first slide seat (3) and the second slide seat (13) and a clamping plate (5) slidably inserted into the inner side of the slot (4); a locking screw (14) for fixing the first slide seat (3) and the second slide seat (13) on the slot (4) is provided on one side of the first slide seat (3) and the second slide seat (13).

2. A laser welding fixture according to claim 1, characterized in that: The driving assembly comprises a first push plate (6) fixedly arranged at the bottom of the first slide (3) and a second push plate (9) fixedly arranged at the bottom of the second slide (13); a first rack (7) is fixedly arranged on one side of the first push plate (6); a second rack (11) in the opposite direction of the first rack (7) is fixedly arranged on one side of the second push plate (9); a gear (8) is meshed between the first rack (7) and the second rack (11); a servo motor (10) for driving the gear (8) to rotate is fixedly arranged on the lower side of the welding platform (1); and a buffer assembly (12) cooperating with the second push plate (9) and the first push plate (6) is respectively arranged at one end of the first rack (7) and the second rack (11).

3. A laser welding fixture according to claim 2, characterized in that: The buffer assembly (12) comprises a buffer rod (1201) which slides through the second push plate (9) and the first push plate (6), and a buffer spring (1202) which is connected to the second push plate (9) and the first push plate (6) is fixedly provided at one end of the buffer rod (1201).

4. A laser welding fixture according to claim 3, characterized in that: A top plate (1203) is fixedly provided at one end of the buffer rod (1201) and abuts against one end of the buffer spring (1202); and through holes (1204) are respectively provided on the second push plate (9) and the first push plate (6) for slidingly matching with the first rack (7) and the second rack (11).

5. The laser welding fixture according to claim 1, characterized in that: The clamping plate (5) adopts an arc structure or a plane structure.

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