Laser welding pressing device

Abstract

The invention discloses a laser welding pressing device. Comprising a first pressing assembly, the first pressing assembly comprises a first air cylinder, and the first air cylinder is installed on a supporting plate; the first rotating shaft is rotationally mounted on the supporting plate and rotates along the axis under the action of the first air cylinder; and the first roller is connected with the first rotating shaft through a first connecting rod and moves in the direction perpendicular to the horizontal direction under the rotating motion of the first rotating shaft. According to the first pressing assembly of the laser welding pressing device, the first air cylinder can be used for driving the first rotating shaft to rotate, so that the first rolling wheel moves in the direction perpendicular to the horizontal direction, pressure is applied to a welded workpiece, and the pressing effect is achieved; the laser welding pressing device can adapt to welded workpieces of different shapes and thicknesses, meanwhile, the problem that the welded workpieces deform due to uneven heating is avoided, and the welding quality is improved.

Description

Technical Field

[0001] The invention relates to the technical field of automobile manufacturing, and in particular to a laser welding clamping device. Background Art

[0002] With the rapid development of the manufacturing industry, the welding of various precision parts has become an important part of the production process, and laser welding technology has been widely used in the connection of various materials due to its advantages such as concentrated energy, small heat-affected zone, and small welding deformation. However, during the laser welding process, the stability of the workpiece is crucial to the welding quality, which requires the use of a clamping device to ensure the close fit of the welding parts to avoid welding defects.

[0003] The technical solutions of the existing laser welding clamping devices are mostly based on the traditional mechanical clamping principle, and a certain pressure is applied to the workpiece by manual or automatic mechanisms to achieve fixation during the welding process. These devices are often designed with adjustable clamping components to adapt to workpieces of different sizes and shapes. However, due to the wide variety and different shapes of workpieces, the existing laser welding clamping devices have obvious deficiencies in flexibility. They can often only be optimized for workpieces of specific types or sizes. Once a welding workpiece with a complex shape or special size is encountered, the clamping device needs to be replaced or redesigned, which undoubtedly increases the production cost and operation complexity. More importantly, when dealing with different welding requirements, the existing technical solutions often require developers to customize and develop according to the characteristics of the specific workpiece, which is not only time-consuming and labor-intensive, but also not flexible and difficult to meet the rapidly changing market needs. Therefore, the development of a laser welding clamping device that can adapt to a variety of workpiece types and has high flexibility and versatility has become a problem that needs to be solved in the current field of laser welding technology. Summary of the invention

[0004] The invention provides a laser welding clamping device to solve the technical problem of low adaptability of the laser welding clamping device in the laser welding process in the prior art.

[0005] In order to achieve the above object, the present invention provides the following technical solutions:

[0006] According to one aspect of the present invention, a laser welding clamping device is provided, which includes a first clamping assembly, wherein the first clamping assembly includes: a first cylinder, which is mounted on a support plate; a first rotating shaft, which is rotatably mounted on the support plate and rotates along the axis under the action of the first cylinder; and a first roller, which is connected to the first rotating shaft through a first connecting rod and moves perpendicular to the horizontal direction under the rotational movement of the first rotating shaft.

[0007] In one embodiment, along the first direction of the support plate, the first cylinder and the first rotating shaft are respectively installed on the side wall and the bottom wall of the support plate, and the first cylinder, the first rotating shaft and the first roller are connected by a Y-shaped rod.

[0008] In one embodiment, the first cylinder is hinged to the support seat.

[0009] In one embodiment, it also includes a second clamping assembly, which includes: a second cylinder, which is installed on the support plate along the height direction of the support plate; a first support block, the top of which is fixedly installed on the support plate and located above the second cylinder, and the bottom of the first support block is rotatably mounted with a second shaft, and the second cylinder and the second shaft are connected by a second connecting rod; a second roller, which is connected to the second shaft by a third connecting rod.

[0010] In one embodiment, the second cylinder is hinged to the support seat.

[0011] In one embodiment, it also includes a third clamping assembly, which includes: a third cylinder, which is installed on the support plate along the height direction of the support plate; a second support block, the top of the second support block is fixedly installed on the support plate and is located below the third cylinder, and the bottom of the second support block is rotatably installed with a third rotating shaft, and the third cylinder and the third rotating shaft are connected by a fourth connecting rod; a third roller, which is connected to the third rotating shaft by a fifth connecting rod.

[0012] In one embodiment, the third cylinder is hinged to the support seat.

[0013] In one embodiment, the first roller is made of rubber.

[0014] In one embodiment, the second roller is made of rubber.

[0015] In one embodiment, the third roller is made of rubber.

[0016] Compared with the prior art, the laser welding clamping device provided by the present invention has at least the following beneficial effects:

[0017] The first clamping assembly of the laser welding clamping device provided by the present invention can utilize the first cylinder to drive the first rotating shaft to rotate, thereby causing the first roller to move perpendicular to the horizontal direction, thereby applying pressure to the workpiece to be welded and playing a clamping role. The laser welding clamping device in the present application can adapt to workpieces to be welded of different shapes and thicknesses. At the same time, it avoids the problem of deformation of the workpiece to be welded due to uneven heating, thereby improving the quality of welding.

[0018] Of course, any product implementing the present application does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the present disclosure, the drawings of the embodiments will be briefly introduced below. Obviously, the drawings in the following description only relate to some embodiments of the present disclosure, but are not intended to limit the present disclosure.

[0020] Figure 1 is a schematic diagram of the three-dimensional structure of a laser welding clamping device provided in an embodiment of the present invention;

[0021] Figure 2 is a structural schematic diagram of a first clamping assembly provided in an embodiment of the present invention;

[0022] Figure 3 is a first structural schematic diagram of a second clamping assembly and a third clamping assembly provided by an embodiment of the present invention;

[0023] Figure 4 is a second structural schematic diagram of a second clamping assembly and a third clamping assembly provided in an embodiment of the present invention;

[0024] In the figure, 100, the first clamping assembly; 110, the first cylinder; 120, the first rotating shaft; 130, the first roller; 140, the first connecting rod; 200, the support plate; 300, the second clamping assembly; 310, the second cylinder; 320, the first support block; 330, the second rotating shaft; 340, the second connecting rod; 350, the second roller; 360, the third connecting rod; 400, the third clamping assembly; 410, the third cylinder; 420, the second support block; 430, the third rotating shaft; 440, the fourth connecting rod; 450, the third roller; 460, the fifth connecting rod. DETAILED DESCRIPTION

[0025] In order to make the purpose, technical solution and advantages of the embodiments of the present disclosure clearer, the technical solution of the embodiments of the present disclosure will be clearly and completely described below in conjunction with the drawings of the embodiments of the present disclosure. Obviously, the described embodiments are part of the embodiments of the present disclosure, not all of the embodiments. Based on the described embodiments of the present disclosure, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present disclosure.

[0026] Unless otherwise defined, the technical terms or scientific terms used in the present disclosure should be understood by people with ordinary skills in the field to which the present disclosure belongs. The "first", "second" and similar words used in the present disclosure do not indicate any order, quantity or importance, but are only used to distinguish different components. "Include" or "comprise" and similar words mean that the elements or objects appearing before the word cover the elements or objects listed after the word and their equivalents, without excluding other elements or objects. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0027] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments, but this does not limit the present invention.

[0028] See also Figure 1-Figure 4 As shown, according to an embodiment of the present invention, a laser welding clamping device is provided, including a first clamping assembly 100, and the first clamping assembly 100 includes: a first cylinder 110, and the first cylinder 110 is installed on a support plate 200; a first rotating shaft 120, and the first rotating shaft 120 is rotatably installed on the support plate 200, and rotates along the axis under the action of the first cylinder 110; a first roller 130, and the first roller 130 is connected to the first rotating shaft 120 through a first connecting rod 140, and moves perpendicular to the horizontal direction under the rotation movement of the first rotating shaft 120.

[0029] According to a preferred embodiment of the present invention, along the first direction of the support plate 200 (such as the left and right direction in the figure), the first cylinder 110 and the first rotating shaft 120 are respectively installed on the left side wall and the bottom wall of the support plate 200, and the first cylinder 110, the first rotating shaft 120 and the first roller 130 are connected by a Y-shaped rod. The driving end of the first cylinder 110 drives the first rotating shaft 120 to rotate along the axis through telescopic movement, and drives the first roller 130 to move in a direction perpendicular to the horizontal direction, so as to realize the clamping function in the welding project. The first clamping assembly 100 of the laser welding clamping device provided by the present invention can use the first cylinder 110 to drive the first rotating shaft 120 to rotate, and then make the first roller 130 move perpendicular to the horizontal direction, so as to apply pressure to the welded workpiece to play a clamping role. The laser welding clamping device in this application can adapt to welded workpieces of different shapes and thicknesses, and at the same time, avoids the problem of deformation of the welded workpiece due to uneven heating, thereby improving the quality of welding.

[0030] According to a preferred embodiment of the present invention, the first cylinder 110 is hinged to the support seat, thereby enabling the first cylinder 110 to swing around the support seat, thereby adjusting the position of the first rotating shaft 120, so that the first roller 130 can move within a certain range, thereby expanding the clamping range and improving flexibility.

[0031] According to a preferred embodiment of the present invention, the laser welding clamping device also includes a second clamping assembly 300, which includes: a second cylinder 310, which is installed on the support plate 200 along the height direction of the support plate 200 (such as the up and down direction in the figure); a first support block 320, the top of the first support block 320 is fixedly installed on the support plate 200 and is located above the second cylinder 310, and the bottom of the first support block 320 is rotatably installed with a second rotating shaft 330, and the second cylinder 310 and the second rotating shaft 330 are connected by a second connecting rod 340; a second roller 350, which is connected to the second rotating shaft 330 by a third connecting rod 360, thereby realizing the up and down movement of the second roller 350, increasing the clamping range, and improving flexibility.

[0032] According to a preferred embodiment of the present invention, the second cylinder 310 is hinged to the support seat, thereby enabling the second cylinder 310 to swing around the support seat, thereby adjusting the position of the second rotating shaft 330, so that the second roller 350 can move within a certain range, thereby expanding the clamping range and improving flexibility.

[0033] According to a preferred embodiment of the present invention, the laser welding clamping device also includes a third clamping assembly 400, which includes: a third cylinder 410, which is installed on the support plate 200 along the height direction of the support plate 200; a second support block 420, the top of the second support block 420 is fixedly installed on the support plate 200 and is located below the third cylinder 410, and the bottom of the second support block 420 is rotatably installed with a third rotating shaft 430, and the third cylinder 410 and the third rotating shaft 430 are connected by a fourth connecting rod 440; a third roller 450, which is connected to the third rotating shaft 430 by a fifth connecting rod 460, thereby realizing the up and down movement of the third roller 450, increasing the clamping range and improving flexibility.

[0034] According to a preferred embodiment of the present invention, the third cylinder 410 is hinged to the support seat, thereby enabling the third cylinder 410 to swing around the support seat, thereby adjusting the position of the third rotating shaft 430, so that the third roller 450 can move within a certain range, thereby expanding the clamping range and improving flexibility.

[0035] According to a preferred embodiment of the present invention, the first roller 130 is made of rubber, thereby improving the stability during the pressing process and preventing the surface of the welded workpiece from being scratched due to excessive friction.

[0036] According to a preferred embodiment of the present invention, the second roller 350 is made of rubber, thereby improving the stability during the clamping process and avoiding scratches on the surface of the workpiece being welded due to excessive friction.

[0037] According to a preferred embodiment of the present invention, the third roller 450 is made of rubber, thereby improving the stability during the clamping process and avoiding scratches on the surface of the workpiece being welded due to excessive friction.

[0038] Working principle:

[0039] When the laser welding clamping device is working, by driving the first motor, the second motor and the third motor, the first cylinder 110 drives the first rotating shaft 120 to rotate, and the first roller 130 moves downward along the first connecting rod 140 until the first roller 130 contacts the welded workpiece; the second cylinder 310 rotates the second rotating shaft 330, and the second roller 350 moves upward along the third connecting rod 360 until the second roller 350 contacts the welded workpiece; the third cylinder 410 rotates the third rotating shaft 430, and the third roller 450 moves upward along the fifth connecting rod 460 until the third roller 450 contacts the welded workpiece, and then the third cylinder 410 stops working and keeps the current state unchanged. At this point, the entire clamping process is completed.

[0040] It should be understood that the sizes of the various components described in this application have been optimized to meet different usage requirements and can of course be adjusted according to actual conditions.

[0041] It should be understood that the specific shapes of the components described in this application do not constitute a limitation on the protection scope thereof. For example, the first roller 130 may also adopt other shapes as long as it can perform the corresponding functions.

[0042] It should be noted that the components among the various embodiments of the present disclosure can be interchangeable as long as they can play the corresponding roles.

[0043] There are a few points to note:

[0044] (1) Unless otherwise defined, in the embodiments of the present disclosure and the accompanying drawings, the same reference numerals represent the same meanings.

[0045] (2) In the drawings of the embodiments of the present disclosure, only the structures related to the embodiments of the present disclosure are involved, and other structures can refer to the general design.

[0046] (3) For the sake of clarity, parts or regions are enlarged in the drawings used to describe the embodiments of the present disclosure. It is understood that when an element is referred to as being "on" or "under" another element, the element may be "directly" "on" or "under" the other element, or there may be intervening elements.

[0047] The above is only a specific embodiment of the present disclosure, but the protection scope of the present disclosure is not limited thereto. Any person skilled in the art who is familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed in the present disclosure, which should be included in the protection scope of the present disclosure. Therefore, the protection scope of the present disclosure should be based on the protection scope of the claims.

Claims

1. A laser welding clamping device, characterized in that: The invention comprises a first pressing assembly (100), wherein the first pressing assembly (100) comprises: A first cylinder (110), wherein the first cylinder (110) is mounted on a support plate (200); A first rotating shaft (120), the first rotating shaft (120) is rotatably mounted on the support plate (200) and rotates along an axis under the action of the first cylinder (110); A first roller (130), wherein the first roller (130) is connected to the first rotating shaft (120) via a first connecting rod (140) and moves perpendicularly to a horizontal direction under the rotation of the first rotating shaft (120).

2. The laser welding clamping device according to claim 1, characterized in that: Along the first direction of the support plate (200), the first cylinder (110) and the first rotating shaft (120) are respectively installed on the side wall and the bottom wall of the support plate (200), and the first cylinder (110), the first rotating shaft (120) and the first roller (130) are connected via a Y-shaped rod.

3. The laser welding clamping device according to claim 1 or 2, characterized in that: The first cylinder (110) is hinged to the support seat.

4. The laser welding clamping device according to claim 3, characterized in that: The invention also comprises a second pressing assembly (300), wherein the second pressing assembly (300) comprises: A second cylinder (310), along a height direction of the support plate (200), wherein the second cylinder (310) is installed on the support plate (200); a first support block (320), wherein the top end of the first support block (320) is fixedly mounted on the support plate (200) and is located above the second cylinder (310), a second rotating shaft (330) is rotatably mounted on the bottom end of the first support block (320), and the second cylinder (310) and the second rotating shaft (330) are connected via a second connecting rod (340); A second roller (350), wherein the second roller (350) is connected to the second rotating shaft (330) via a third connecting rod (360).

5. The laser welding clamping device according to claim 4, characterized in that: The second cylinder (310) is hinged to the support seat.

6. The laser welding clamping device according to claim 4 or 5, characterized in that: The invention also includes a third pressing assembly (400), wherein the third pressing assembly (400) includes: A third cylinder (410), along a height direction of the support plate (200), the third cylinder (410) being installed on the support plate (200); a second support block (420), wherein the top end of the second support block (420) is fixedly mounted on the support plate (200) and is located below the third cylinder (410), a third rotating shaft (430) is rotatably mounted on the bottom end of the second support block (420), and the third cylinder (410) and the third rotating shaft (430) are connected via a fourth connecting rod (440); A third roller (450), wherein the third roller (450) is connected to the third rotating shaft (430) via a fifth connecting rod (460).

7. The laser welding clamping device according to claim 6, characterized in that: The third cylinder (410) is hinged to the support seat.

8. The laser welding clamping device according to claim 3, characterized in that: The first roller (130) is made of rubber.

9. The laser welding clamping device according to claim 5, characterized in that: The second roller (350) is made of rubber.

10. The laser welding clamping device according to claim 7, characterized in that: The third roller (450) is made of rubber.

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