A laser welding device for welding a wheelchair main frame

Abstract

The utility model relates to mechanical manufacturing technical field discloses a kind of laser welding equipment for wheelchair main body frame welding, including main component, including welding fixture, welding fixture side is provided with welding mechanical arm;Fixed component, setting in welding fixture side, including fixing piece, fixing piece includes the two clamping rings of setting in welding fixture side, clamping ring one end is fixed with support plate, support shaft is inserted in the inner wall of clamping ring, four support blocks are sleeved on the outside of support shaft, and support block other end is fixed in welding fixture side.The utility model has beneficial effect that: by the one-key fixing after to frame individual pre-positioning, the clamping efficiency of wheelchair main body frame welding fixture can be significantly improved, labor intensity is reduced, and positioning accuracy consistency is guaranteed simultaneously.

Description

Technical Field

[0001] This utility model relates to the field of mechanical manufacturing technology, and in particular to a laser welding equipment for welding wheelchair frames. Background Technology

[0002] The wheelchair frame, as the core load-bearing skeleton of the wheelchair, plays a crucial role in supporting the weight of the human body, integrating various functional components, and ensuring the stability of the overall structure. However, in its welding process, the frame needs to be installed one by one into the welding fixture, which results in low operating efficiency and high labor intensity. After installation, the frame is then welded by a laser welding robotic arm. Utility Model Content

[0003] The purpose of this section is to outline some aspects of embodiments of the present invention and to briefly describe some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be construed as limiting the scope of the present invention.

[0004] In view of the problems existing in the above and / or existing laser welding equipment for welding wheelchair frames, this utility model is proposed.

[0005] Therefore, the problem that this utility model aims to solve is the inconvenience of fixing the wheelchair frame.

[0006] To solve the above-mentioned technical problems, the present invention provides the following technical solution: a laser welding equipment for welding the main frame of a wheelchair, comprising a main component including a welding fixture, wherein a welding robotic arm is provided on one side of the welding fixture; A fixing component, disposed on one side of the welding fixture, includes a fixing member. The fixing member includes two clamping rings disposed on one side of the welding fixture. A support plate is fixed to one end of each clamping ring. A support shaft is inserted into the inner wall of the clamping ring. Four support blocks are sleeved on the outer side of the support shaft. The other end of each support block is fixed to one side of the welding fixture.

[0007] As a preferred embodiment of the laser welding equipment for welding the wheelchair main frame of the present invention, the fixing component further includes a support member, the support member including a torsion spring sleeved on the outside of the support shaft, one end of the torsion spring being fixed to one end of the support block, and the other end being fixed to one end of the clamping ring.

[0008] As a preferred embodiment of the laser welding equipment for welding the main frame of the wheelchair described in this utility model, a compression block is fixed at one end of the clamping ring.

[0009] As a preferred embodiment of the laser welding equipment for welding the wheelchair frame described in this utility model, a movable block is provided on one side of the extrusion block, and the other end of the movable block is inserted into the inner wall of the welding fixture and moves.

[0010] In a preferred embodiment of the laser welding equipment for welding the main frame of the wheelchair described in this utility model, one end of the moving block is an inclined surface.

[0011] As a preferred embodiment of the laser welding equipment for welding the main frame of the wheelchair described in this utility model, the fixing component further includes a limiting member, which includes an extrusion plate fixed to one end of the moving block.

[0012] As a preferred embodiment of the laser welding equipment for welding the main frame of the wheelchair described in this utility model, wherein: one end of the extrusion plate is fixed with an extrusion rod, and the inner wall of the extrusion rod is provided with multiple slots.

[0013] As a preferred embodiment of the laser welding equipment for welding the wheelchair frame described in this utility model, a fixing frame is sleeved on the outer side of the extrusion rod, and one end of the fixing frame is fixed to one side of the welding fixture.

[0014] As a preferred embodiment of the laser welding equipment for welding the main frame of the wheelchair described in this utility model, a rod is inserted into the inner wall of the slot, a support frame is sleeved on the outer side of the rod, a spring is sleeved on the outer side of the rod, one end of the spring is fixed to one end of the support frame, and the other end is fixed to the surface of the rod.

[0015] In a preferred embodiment of the laser welding equipment for welding the wheelchair frame described in this utility model, a handle is fixed to one end of the extrusion rod.

[0016] The beneficial effects of this utility model are as follows: by pre-positioning each frame and then fixing it with one click, the clamping efficiency of the wheelchair main frame welding fixture can be significantly improved, the labor intensity can be reduced, and the positioning accuracy can be guaranteed. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments 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. Among them: Figure 1 This is an overall structural diagram of the laser welding equipment used for welding the main frame of a wheelchair.

[0018] Figure 2 A structural diagram of an extruded plate for a laser welding equipment used for welding the main frame of a wheelchair.

[0019] Figure 3 A top view of the laser welding equipment used for welding the wheelchair frame.

[0020] Figure 4 A side view of a laser welding equipment used for welding the main frame of a wheelchair.

[0021] Figure 5 Insert rods for laser welding equipment used for welding the main frame of wheelchairs. Detailed Implementation

[0022] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0023] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0024] Secondly, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that excludes other embodiments.

[0025] Example 1 Reference Figures 1-5 This is the first embodiment of the present invention. This embodiment provides a laser welding device for welding the main body frame of a wheelchair. The laser welding device for welding the main body frame of a wheelchair includes a main body component 1 and a fixing component 2. The two work together to fix the wheelchair frame with one click.

[0026] The main component 1 includes a welding fixture 11, and a welding robotic arm 12 is provided on one side of the welding fixture 11.

[0027] The welding fixture 11 is used to accurately position and firmly clamp the frame components when laser welding the wheelchair frame to prevent displacement or deformation during the welding process, thereby ensuring the quality and dimensional accuracy of the weld. The welding robot arm 12 is used to carry welding tools such as laser welding guns and automatically complete the welding operation of the wheelchair frame according to a preset program, thereby achieving high-precision and automated weld formation. By fixing the wheelchair frame one by one onto the welding fixture 11, the frame can be precisely positioned and firmly clamped to prevent displacement or deformation during the welding process. Then, the welding robotic arm 12 is equipped with a laser welding gun and automatically performs laser welding on each weld of the wheelchair frame according to the preset welding program and path, thereby ensuring the consistency of welding quality and welding efficiency. This is existing technology, and this solution will not be described in detail. Moreover, those skilled in the art can clearly understand its working principle.

[0028] The fixing component 2 is disposed on one side of the welding fixture 11 and includes a fixing member 21. The fixing member 21 includes two clamping rings 211 disposed on one side of the welding fixture 11. A support plate 212 is fixed to one end of the clamping ring 211. A support shaft 213 is inserted into the inner wall of the clamping ring 211. Four support blocks 214 are sleeved on the outer side of the support shaft 213. The other end of the support block 214 is fixed to one side of the welding fixture 11.

[0029] The opening angle of the support plate 212 is the same as the diameter of the wheelchair frame.

[0030] There are multiple fasteners 21, all of which are sleeved on the outside of the wheelchair frame. By pressing the frame against the support plate 212, the pressed end faces of the two support plates 212 will open, which will drive the other end of the clamping ring 211 to close. By moving the wheelchair frame to the inner wall of the clamping ring 211, the wheelchair frame can be pre-fixed, and then the frames are fixed one by one. The support shaft 213 is used to support the clamping ring 211 and is movably connected to the clamping ring 211. The support block 214 is used to support the support shaft 213.

[0031] Example 2 Reference Figures 1-5 This is the second embodiment of the present invention, which is based on the previous embodiment.

[0032] Specifically, the fixing component 2 also includes a support member 22, which includes a torsion spring 221 sleeved on the outside of the support shaft 213. One end of the torsion spring 221 is fixed to one end of the support block 214, and the other end is fixed to one end of the clamping ring 211.

[0033] By pressing the frame against the support plate 212, the pressed ends of the two support plates 212 will open, causing the other end of the clamping ring 211 to close. The movement of the clamping ring 211 will apply a torsional force to the torsion spring 221. Then, the frame will continue to move and move to the inner wall of the clamping ring 211. At this time, the force of the rotation of the torsion spring 221 will cause the clamping ring 211 to engage with the frame, thereby completing the pre-fixation of the wheelchair frame.

[0034] Specifically, a compression block 222 is fixed to one end of the clamping ring 211.

[0035] By pressing the support plate 212 against the wheelchair frame, the pressed end of the support plate opens, causing the other end of the clamping ring 211 to close. The movement of the clamping ring 211 moves the pressing block 222, and at the same time, the movement of the clamping ring applies a torsional force to the torsion spring 221. The frame continues to move to the inner wall of the clamping ring, and the force of the torsion spring rotation makes the clamping ring engage with the frame, thereby achieving pre-fixation of the wheelchair frame. After each frame is fixed, the pressing block 222 is pressed, and the movement of the pressing block 222 will cause one end of the clamping ring 211 to open. At this time, the other end of the clamping ring 211 will close, thereby fixing the wheelchair frame.

[0036] Specifically, a movable block 223 is provided on one side of the extrusion block 222, and the other end of the movable block 223 is inserted into the inner wall of the welding fixture 11 and moves.

[0037] After each wheelchair frame is engaged with the clamping ring 211, multiple moving blocks 223 are moved simultaneously. The moving blocks 223 press the squeezing block 222. By squeezing the squeezing block 222, the squeezing block 222 moves and causes one end of the clamping ring 211 to open. At this time, the other end of the clamping ring 211 will close, thereby fixing multiple wheelchair frames.

[0038] Specifically, one end of the moving block 223 is an inclined plane.

[0039] The inclined surface of the moving block 223 corresponds to the inclined surface of the extrusion block 222, which can make it more stable when extruding the extrusion block 222.

[0040] Example 3 Reference Figure 4 and Figure 5 This is the third embodiment of the present invention, which is based on the first two embodiments.

[0041] Specifically, the fixing component 2 also includes a limiting member 23, which includes a pressing plate 231 fixed to one end of the moving block 223.

[0042] After each wheelchair frame is engaged with the clamping ring 211, the compression plate 231 is pressed, which in turn presses the multiple moving blocks 223.

[0043] Specifically, one end of the extrusion plate 231 is fixed with an extrusion rod 232, and the inner wall of the extrusion rod 232 is provided with multiple slots 232-1.

[0044] When the extrusion rod 232 is extruded, it moves to extrude the extrusion plate 231. When the extrusion rod 232 moves, it also drives the slot 232-1 to move.

[0045] Specifically, a fixing frame 233 is sleeved on the outside of the extrusion rod 232, and one end of the fixing frame 233 is fixed to one side of the welding fixture 11.

[0046] The fixing bracket 233 is used to support the compression rod 232.

[0047] Specifically, a rod 234 is inserted into the inner wall of the slot 232-1, a support frame 235 is sleeved on the outside of the rod 234, and a spring 236 is sleeved on the outside of the rod 234. One end of the spring 236 is fixed to one end of the support frame 235, and the other end is fixed to the surface of the rod 234.

[0048] One end of the support frame 235 is fixed to one end of the fixing frame 233. After the wheelchair frame is pre-fixed, the insertion rod 234 is moved. The movement of the insertion rod 234 compresses the spring 236. At this time, the insertion rod 234 separates from the slot 232-1, thereby releasing the limit on the compression rod 232. Then, the compression rod 232 is compressed. The movement of the compression rod 232 drives the compression plate 231 to move. The movement of the compression plate 231 will drive multiple moving blocks 223 to compress, thereby completing the one-click fixing of the wheelchair frame. At this time, the insertion rod 234 is released. The rebound force of the spring 236 will cause the insertion rod 234 to re-engage with the slot 232-1, thereby completing the one-click fixing of the wheelchair frame.

[0049] Specifically, a handle 237 is fixed to one end of the compression rod 232.

[0050] By moving the handle 237, the pressing rod 232 will move, thereby improving the flexibility of equipment operation and positioning efficiency.

[0051] After the wheelchair frame is welded, pull the insert rod 234 to separate it from the slot 232-1. Then pull the compression rod 232 to separate the moving block 223 from the compression block 222. At this time, the clamping ring 211 will restore its pre-fixed function, and then the entire wheelchair frame can be removed directly.

[0052] When in use, the wheelchair frame is aligned with the support plate 212 of the fixing component 21 in the fixing assembly 2 and a pressing force is applied. Since the opening angle of the support plate 212 is adapted to the frame diameter, the end faces of the two support plates 212 open synchronously after pressing. The opening of the support plate 212 drives the other end of the clamping ring 211 to close towards each other. At the same time, the clamping ring 211 moves around the support shaft 213, applying a torsional force to the torsion spring 221 sleeved on the support shaft 213, and continues to push the wheelchair frame to the inner wall of the clamping ring 211. After the external force is removed, the torsion spring 221 releases the rotational force, driving the clamping ring 211 to tightly fit against the outer wall of the frame, completing the pre-fixation of a single frame. By repeating the above steps, the pre-fixation of multiple frames can be achieved one by one. After pre-fixing is completed, by pulling the insert rod 234, the spring 236 sleeved on the insert rod 234 is squeezed until the insert rod 234 separates from the groove 232-1 on the inner wall of the squeezing rod 232, releasing the limitation on the squeezing rod 232. Then, by squeezing the handle 237, the handle 237 drives the squeezing rod 232 to move, and the squeezing rod 232 drives the squeezing plate 231 to move. The squeezing plate 231 simultaneously squeezes multiple moving blocks 223. The moving blocks 223 squeeze the squeezing block 222 at one end of the clamping ring 211 through the inclined surface, driving one end of the clamping ring 211 to open and the other end to close further, realizing the synchronous locking of multiple pre-fixed frames. After the fixation is completed, the insert rod 234 is released, the spring 236 rebounds and pushes the insert rod 234 to reset, re-engage with the groove 232-1 of the squeezing rod 232, fix the position of the squeezing rod 232, ensure the clamping force is continuously stable, and complete the final fixation of all frames without the need for manual repeated fixation of each frame.

[0053] After the wheelchair frame is welded, pull the insert rod 234 to disengage it from the slot 232-1, and then pull the compression rod 232 to drive the moving block 223 to separate from the compression block 222. At this time, the clamping ring 211 returns to the pre-fixed state, and the entire wheelchair frame can be removed directly.

[0054] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A laser welding device for welding wheelchair frames, characterized in that: include, The main component (1) includes a welding fixture (11), and a welding robotic arm (12) is provided on one side of the welding fixture (11). The fixing component (2) is disposed on one side of the welding fixture (11) and includes a fixing member (21). The fixing member (21) includes two clamping rings (211) disposed on one side of the welding fixture (11). A support plate (212) is fixed to one end of the clamping ring (211). A support shaft (213) is inserted into the inner wall of the clamping ring (211). Four support blocks (214) are sleeved on the outer side of the support shaft (213). The other end of the support block (214) is fixed to one side of the welding fixture (11).

2. The laser welding equipment for welding wheelchair frames as described in claim 1, characterized in that: The fixing component (2) also includes a support member (22), which includes a torsion spring (221) sleeved on the outside of the support shaft (213). One end of the torsion spring (221) is fixed to one end of the support block (214), and the other end is fixed to one end of the clamping ring (211).

3. The laser welding equipment for welding wheelchair frames as described in claim 2, characterized in that: One end of the clamping ring (211) is fixed with a compression block (222).

4. The laser welding equipment for welding wheelchair frames as described in claim 3, characterized in that: A movable block (223) is provided on one side of the extrusion block (222), and the other end of the movable block (223) is inserted into the inner wall of the welding fixture (11) and moves.

5. The laser welding equipment for welding wheelchair frames as described in claim 4, characterized in that: One end of the moving block (223) is an inclined surface.

6. The laser welding equipment for welding wheelchair frames as described in claim 5, characterized in that: The fixing component (2) further includes a limiting member (23), which includes a pressing plate (231) fixed to one end of the moving block (223).

7. The laser welding equipment for welding wheelchair frames as described in claim 6, characterized in that: One end of the extrusion plate (231) is fixed with an extrusion rod (232), and the inner wall of the extrusion rod (232) is provided with multiple slots (232-1).

8. The laser welding equipment for welding wheelchair frames as described in claim 7, characterized in that: A fixing frame (233) is sleeved on the outside of the extrusion rod (232), and one end of the fixing frame (233) is fixed to one side of the welding fixture (11).

9. The laser welding equipment for welding wheelchair frames as described in claim 8, characterized in that: A rod (234) is inserted into the inner wall of the slot (232-1). A support frame (235) is sleeved on the outside of the rod (234). A spring (236) is sleeved on the outside of the rod (234). One end of the spring (236) is fixed to one end of the support frame (235), and the other end is fixed to the surface of the rod (234).

10. The laser welding equipment for welding wheelchair frames as described in claim 9, characterized in that: A handle (237) is fixed to one end of the compression rod (232).

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