A welding fixture for foot beam connectors

Abstract

This utility model discloses a welding fixture for a crossbeam connector, comprising: a workbench; a first positioning device disposed on the workbench for fixing the crossbeam connector; a second positioning device movably disposed on the workbench for placing the crossbeam welding piece and pushing the crossbeam welding piece into the crossbeam connector; a third positioning device disposed on the workbench for driving the second positioning device to perform telescopic movement; a plurality of limiting blocks disposed on the workbench for limiting the crossbeam connector; and a control switch for controlling the operation of the first positioning device, the second positioning device, and the third positioning device.

Description

Technical Field

[0001] This utility model relates to the field of table leg processing technology, and in particular to a welding fixture for a crossbeam connector. Background Technology

[0002] Existing table beam connection structures typically involve connecting the table legs and beams with metal parts or relying solely on screws for tightening. This results in a simple structure with poor stability, failing to meet the requirements for quick assembly and disassembly.

[0003] Therefore, through beneficial exploration and research, the applicant has found a solution to the above problems, and the technical solution to be introduced below is the result of this research. Utility Model Content

[0004] The technical problem to be solved by this utility model is to provide a welding fixture for the foot beam connector, addressing the aforementioned shortcomings and defects of the existing technology.

[0005] The technical problem to be solved by this utility model can be achieved by the following technical solution:

[0006] A welding fixture for a foot beam connector, characterized in that it comprises:

[0007] Workbench;

[0008] A first positioning device is provided on the workbench for fixing the crossbeam connector;

[0009] A second positioning device is set on the workbench and used to place the crossbeam welding piece and push the crossbeam welding piece into the crossbeam connector;

[0010] A third positioning device is set on the workbench and used to drive the second positioning device to perform telescopic movement.

[0011] A plurality of limiting blocks are disposed on the workbench for limiting the movement of the crossbeam connector, and

[0012] A control switch for controlling the operation of the first positioning device, the second positioning device, and the third positioning device.

[0013] In a preferred embodiment of the present invention, the first positioning device includes a first cylinder disposed on the workbench and connected to the control switch, and the first cylinder is provided with a first positioning boss that cooperates with the crossbeam connector.

[0014] In a preferred embodiment of the present invention, the first cylinder is fixed to the workbench by a first connecting plate.

[0015] In a preferred embodiment of the present invention, the second positioning device includes a second cylinder that is slidably disposed on the worktable and connected to the control switch, and the second cylinder is provided with a positioning pin for placing the crossbeam welding piece.

[0016] In a preferred embodiment of the present invention, the third positioning device includes a third cylinder disposed on the workbench and connected to a control switch, and the third cylinder is provided with a sliding plate connected to the second cylinder and for the positioning pin to pass through.

[0017] In a preferred embodiment of the present invention, the third cylinder is fixed to the workbench by a third connecting plate.

[0018] In a preferred embodiment of this utility model, a guide rod is provided between the third connecting plate and the first connecting plate for the sliding plate to move left and right.

[0019] In a preferred embodiment of the present invention, the sliding plate has an oblong hole in the middle for the positioning pin to pass through.

[0020] In a preferred embodiment of the present invention, the sliding plate is provided with mounting holes around its perimeter for the second cylinder to be fixedly connected by bolts.

[0021] In a preferred embodiment of the present invention, the side of the sliding plate is provided with a through hole for the guide rod to pass through.

[0022] Due to the adoption of the above technical solution, the beneficial effects of this utility model are as follows: By using this utility model to weld the connection between the crossbeam welding piece and the crossbeam connector, they are welded into a whole. Since the welding parts are clamped and fixed, deformation and misalignment will not occur due to factors such as welding heat during the welding process, thereby ensuring the verticality and accuracy of the product after welding and cooling, and avoiding height differences when assembling the crossbeam and the foot connector. Attached Figure Description

[0023] 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.

[0024] Figure 1 This is a structural schematic diagram of the present invention in its non-operating state.

[0025] Figure 2 This is a schematic diagram of the structure of this utility model in its working state.

[0026] Figure 3 This is a structural schematic diagram of the intermediate foot crossbeam connector and the crossbeam welding piece of this utility model.

[0027] Figure 4 This is a structural schematic diagram of the side beam connector and the beam welding piece of this utility model.

[0028] Figure 5 This is a schematic diagram of the structure of the first positioning device of this utility model.

[0029] Figure 6 This is a schematic diagram of the structure of the second positioning device of this utility model.

[0030] Figure 7 This is a structural schematic diagram of the third positioning device of this utility model.

[0031] Figure 8 This is a diagram of the first working state of this utility model.

[0032] Figure 9 This is a diagram of the second working state of this utility model.

[0033] Figure 10 This is the third working state diagram of this utility model.

[0034] Figure 11 This is the fourth working state diagram of this utility model.

[0035] Figure 12 This is the fifth working state diagram of this utility model.

[0036] Figure 13 This is the sixth working state diagram of this utility model.

[0037] Figure 14 This is an exploded view of this utility model.

[0038] Figure 15 This is a structural schematic diagram of the middle foot crossbeam connector of this utility model.

[0039] Figure 16 This is a structural schematic diagram of the side beam connector of this utility model.

[0040] Figure 17 yes Figure 16 A schematic diagram of a structure that has been welded and then cut in half. Detailed Implementation

[0041] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the following description, in conjunction with specific illustrations, further elaborates on this utility model.

[0042] See Figures 1 to 17 The welding fixture for a foot beam connector shown includes a worktable 10, a first positioning device 100, a second positioning device 200, a third positioning device 300, several limit blocks 400, and a control switch for controlling the operation of the first positioning device 100, the second positioning device 200, and the third positioning device 300. In this embodiment, the control switch is a pneumatic switch.

[0043] A first positioning device 100 is mounted on the workbench 10 and is used to fix the crossbeam connector 1. In this embodiment, the first positioning device 100 includes a first cylinder mounted on the workbench 10 and connected to a control switch. The first cylinder 100 is provided with a first positioning boss 110 that cooperates with the crossbeam connector 1. Specifically, the crossbeam connector 1 can be an intermediate crossbeam connector or a side crossbeam connector. To fix the first cylinder, the first cylinder 100 is fixed to the workbench 10 by a first connecting plate 120.

[0044] The second positioning device 200 is movably mounted on the workbench 10 and is used to place the crossbeam welding piece 2 and push the crossbeam welding piece 2 into the crossbeam connector 1. In this embodiment, the second positioning device 200 includes a second cylinder that is slidably mounted on the workbench 10 and connected to a control switch. The second cylinder 200 is provided with a positioning pin 210 for placing the crossbeam welding piece 2.

[0045] The third positioning device 300 is mounted on the worktable 10 and is used to drive the second positioning device 200 to perform telescopic movements. In this embodiment, the third positioning device 300 includes a third cylinder mounted on the worktable 10 and connected to a control switch. The third cylinder 300 is provided with a sliding plate 310 connected to the second cylinder 200 and used for the positioning pin 210 to pass through. In this embodiment, the third cylinder 300 is fixed to the worktable 10 by a third connecting plate 320. To allow the sliding plate to move left and right, a guide rod 330 is provided between the third connecting plate 320 and the first connecting plate 120 to allow the sliding plate 310 to move left and right.

[0046] In order to cooperate with the positioning pin, the sliding plate 310 has a waist-shaped hole 310a in the middle for the positioning pin 210 to pass through. In this embodiment, the sliding plate 310 has mounting holes 310b around its perimeter for the second cylinder to be fixedly connected by 200 bolts. The sliding plate 310 also has through holes 310c on its side for the guide rod 330 to pass through.

[0047] A plurality of limiting blocks 400 are disposed on the workbench 10 and are used to limit the crossbeam connector 1. In this embodiment, the plurality of limiting blocks 400 include a first limiting block 410 and a second limiting block 420. The first limiting block 410 is used to limit the side of the crossbeam connector 1, while there are two second limiting blocks 420. The two second limiting blocks 420 are distributed at intervals on the workbench 10 and are used to limit the bottom surface of the crossbeam connector 1. The two second limiting blocks 420 are arranged in an L-shaped structure, and the two second limiting blocks 420 are provided with a plane for the crossbeam connector 1 to be placed.

[0048] When using this invention, firstly, clean the surfaces of all devices, the workbench, and the workpiece to remove iron filings, dirt, dust, etc., ensuring there are no foreign objects between the platform and the workpiece. Then, adjust the workbench 10 to the exhaust and depressurization state using the control switch, and retract the first cylinder 100, the second cylinder 200, and the third cylinder 300. Place the intermediate leg beam connector 1 vertically downwards onto the second limiting block 420 of the workbench 10, with one end of the intermediate leg beam connector 1 pressed against the inner surface of the first limiting block 410. Use the first limiting block 410 and the second limiting block 420 to limit the bottom and side surfaces of the intermediate leg beam connector 1. Turn on the control switch of the first cylinder 100, and the first cylinder 10... 0. Adjust to the intake pressurization state. The first cylinder 100 extends outward. During the outward movement of the first positioning boss 110 on the first cylinder 1100, it presses and fixes the middle foot crossbeam connector 1. The two positioning pins 210 on the second cylinder 200 fix the crossbeam welding piece 2 to the outer surface of the second cylinder 200. Turn on the control switch of the third cylinder 300 and adjust the third cylinder 300 to the intake pressurization state. The telescopic shaft of the third cylinder 300 drives the second cylinder 200 to move towards the first cylinder 100 until it is flat against the first connecting plate 120 at the first cylinder 100. Turn on the control switch of the second cylinder 200 and adjust it to the intake pressurization state. The telescopic shaft of the second cylinder 200 drives the directional pin 210 to... The crossbeam welding piece 2 moves outward, pushing the crossbeam welding piece 200 into the interior of the crossbeam connector 1; the second cylinder 200 and the third cylinder 300 are adjusted to the depressurization state by the control switch, and the telescopic shafts of the second cylinder 200 and the third cylinder 300 retract inward, resetting the second cylinder 200 and the third cylinder 300 (due to the friction between the crossbeam welding piece 2 and the inner surface of the crossbeam connector 1, the crossbeam welding piece 2 will not loosen or fall off during the resetting process of the second cylinder 200). Welding is then performed from the outer surface at the connection between the crossbeam welding piece 2 and the crossbeam connector 1, welding them into a whole. Because the welded parts are clamped and fixed, deformation and misalignment will not occur due to welding heat or other factors during the welding process, thus ensuring production. The verticality and precision of the product after welding and cooling are ensured to avoid height differences during the assembly of the crossbeam and the legs. After the crossbeam welding piece 2 is welded and fixed, the first cylinder 100 is adjusted to the depressurization state by controlling the switch. The telescopic shaft of the first cylinder 100 retracts inward, and the first positioning boss 110 on the first cylinder 100 separates from the surface of the crossbeam connector 1. The welded workpiece is taken out vertically upward (the above operation can be repeated to weld the crossbeam connector 1 to the crossbeam welding piece 2 on the other side. This utility model is applicable to the middle leg crossbeam connector and the side leg crossbeam connector. When welding the side leg crossbeam connector, it is only necessary to loosen the first limit block 410 from the worktable 10 and re-lock it in the front positioning hole of the worktable 10 with screws).

[0049] In addition, this utility model can also achieve high-precision and rapid welding of the crossbeam tube and the crossbeam welding piece 2 through extended combination, and switch the first positioning boss 110 on the first cylinder 100 (using screws to switch between the two positioning bosses); to extend the use of this utility model, an additional movable workbench can be assembled on the side of the existing workbench 10, and the two utility models can be assembled as a whole on a fixed workbench.

[0050] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A welding fixture for a foot beam connector, characterized in that, include: Workbench; A first positioning device is provided on the workbench for fixing the crossbeam connector; A second positioning device is set on the workbench and used to place the crossbeam welding piece and push the crossbeam welding piece into the crossbeam connector; A third positioning device is set on the workbench and used to drive the second positioning device to perform telescopic movement. A plurality of limiting blocks are disposed on the workbench for limiting the movement of the crossbeam connector, and A control switch for controlling the operation of the first positioning device, the second positioning device, and the third positioning device.

2. The welding fixture for a foot beam connector according to claim 1, characterized in that, The first positioning device includes a first cylinder disposed on the workbench and connected to the control switch, and the first cylinder is provided with a first positioning boss that cooperates with the crossbeam connector.

3. The welding fixture for a foot beam connector according to claim 2, characterized in that, The first cylinder is fixed to the worktable by a first connecting plate.

4. The welding fixture for a foot beam connector according to claim 3, characterized in that, The second positioning device includes a second cylinder that is slidably mounted on the worktable and connected to the control switch, and the second cylinder is provided with a positioning pin for placing the crossbeam welding piece.

5. The welding fixture for a foot beam connector according to claim 4, characterized in that, The third positioning device includes a third cylinder disposed on the workbench and connected to a control switch. The third cylinder is provided with a sliding plate that is connected to the second cylinder and is used for the positioning pin to pass through.

6. The welding fixture for a foot beam connector according to claim 5, characterized in that, The third cylinder is fixed to the workbench via a third connecting plate.

7. The welding fixture for a foot beam connector according to claim 6, characterized in that, A guide rod is provided between the third connecting plate and the first connecting plate to allow the sliding plate to move left and right.

8. The welding fixture for a foot beam connector according to claim 5, characterized in that, The sliding plate has an oblong hole in the middle for the positioning pin to pass through.

9. The welding fixture for a foot beam connector according to claim 5, characterized in that, The sliding plate is provided with mounting holes around its perimeter for the second cylinder to be fixedly connected by bolts.

10. The welding fixture for a foot beam connector according to claim 7, characterized in that, The sliding plate has a through hole on its side for the guide rod to pass through.

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