A welding tool for the side legs of a back-shaped stool
Patent Information
- Application Number
- CN202522488223.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-11-24
- Publication Date
- 2026-10-23
- Estimated Expiration
- 2035-11-24
AI Technical Summary
[0002]传统的桌脚（回字形）的连接结构一般都是在边脚上横梁和脚柱以及边脚下横梁三者之间仅依靠螺丝锁紧的方式进行连接固定，但由于连接结构单一，而且结构稳定性较差，无法满足快速固定安装的要求
[0014]由于采用了如上技术方案，本实用新型的有益效果在于：采用本实用新型将回字边脚焊接部件被夹紧以后，对回字边脚上横梁、回字边脚脚柱、回字边脚下横梁的拼接处分别进行焊接，将三者焊接成一个整体，由于焊接部件被夹紧固定，因此在焊接过程中，其不会因为焊接受热等因素造成形变和错位。
Smart Images
Figure CN224879747U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of table leg processing, in particular to a welding fixture for a hollow-frame-shaped side leg. Background Art
[0002] The conventional connection structure of the traditional hollow-frame-shaped table leg generally adopts only screws to lock and connect the upper crossbeam of the side leg, the leg posts and the lower crossbeam of the side leg together. However, due to the single connection structure and poor structural stability, it cannot meet the requirements of rapid fixed installation.
[0003] For this reason, the applicant has made beneficial exploration and research and found a method to solve the above problems, and the technical solution to be introduced below is produced under this background. Contents of the Utility Model
[0004] Aiming at the above deficiencies and defects of the prior art, the technical problem to be solved by the utility model is to provide a welding fixture for a hollow-frame-shaped side leg to solve the above problems The technical problem to be solved by the utility model can be realized by adopting the following technical solution. A welding fixture for a hollow-frame-shaped side leg, characterized by comprising: a workbench; a first positioning device arranged on the workbench and used for positioning the hollow-frame-shaped side leg; a second positioning device arranged on the workbench and used for positioning the hollow-frame-shaped side leg; a first clamping device arranged on the workbench and used for pressing the hollow-frame-shaped side leg; a second clamping device arranged on the workbench and used for pressing the hollow-frame-shaped side leg; a sliding structure slidably arranged on the workbench and connected with the first positioning device, the second positioning device, the first clamping device and the second clamping device, and a control switch for controlling the operation of the first positioning device, the second positioning device, the first clamping device and the second clamping device.
[0005] In a preferred embodiment of the utility model, the hollow-frame-shaped side leg consists of an upper crossbeam of the hollow-frame-shaped side leg, two leg posts of the hollow-frame-shaped side leg connected with the upper crossbeam of the hollow-frame-shaped side leg, and a lower crossbeam of the hollow-frame-shaped side leg connected with the two leg posts of the hollow-frame-shaped side leg.
[0006] In a preferred embodiment of the utility model, the first positioning device comprises four first positioning blocks arranged on the sliding structure, and every two first positioning blocks are symmetrically arranged on the sliding structure at intervals.
[0007] In a preferred embodiment of the present utility model, each first positioning block is provided with a first positioning groove for placing the upper cross beam of the rectangular frame leg and the lower cross beam of the rectangular frame leg.
[0008] In a preferred embodiment of the present utility model, the second positioning device comprises four second positioning blocks arranged on the sliding structure, and every two second positioning blocks are symmetrically arranged and spaced apart on the sliding structure.
[0009] In a preferred embodiment of the present utility model, each second positioning block is provided with a second positioning groove for placing the two leg posts of the rectangular frame leg.
[0010] In a preferred embodiment of the present utility model, the first clamping device comprises four first clamping cylinders for clamping the upper cross beam of the rectangular frame leg and the lower cross beam of the rectangular frame leg, and every two first clamping cylinders are arranged at intervals on the sliding structure.
[0011] In a preferred embodiment of the present utility model, the second clamping device comprises four second clamping cylinders for clamping the two leg posts of the rectangular frame leg, and every two second clamping cylinders are arranged at intervals on the sliding structure.
[0012] In a preferred embodiment of the present utility model, the sliding structure comprises four sliding blocks, wherein a support plate for fixing the first positioning device, the second positioning device, the first clamping device and the second clamping device is arranged between two of the sliding blocks, and the four sliding blocks are connected with sliding rails arranged on the workbench.
[0013] In a preferred embodiment of the present utility model, the control switch is a pneumatic switch for controlling the operation of the first positioning device, the second positioning device, the first clamping device and the second clamping device.
[0014] By adopting the above technical solution, the beneficial effects of the present utility model are as follows: after the welding component of the rectangular frame leg is clamped by adopting the present utility model, the joints of the upper cross beam of the rectangular frame leg, the leg post of the rectangular frame leg and the lower cross beam of the rectangular frame leg are respectively welded to weld the three into an integral body. Since the welding component is clamped and fixed, it will not be deformed or dislocated due to factors such as welding heat during the welding process. Brief Description of the Drawings
[0015] In order to more clearly describe the technical solutions in the embodiments of the present utility model or the prior art, the drawings required to be used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present utility model, and for those of ordinary skill in the art, other drawings can be obtained based on these drawings without any creative effort.
[0016] Figure 1 is a schematic structural view of the utility model when each cylinder is not in operation.
[0017] Figure 2 is a schematic structural view of the utility model when each cylinder is in operation.
[0018] Figure 3 is a schematic structural view of the utility model with a hollow square foot placed thereon.
[0019] Figure 4 is a schematic structural view of the 590-length hollow square foot of the utility model.
[0020] Figure 5 is a schematic structural view of the 990-length hollow square foot of the utility model.
[0021] Figure 6 is a schematic structural view of the clamping cylinder of the utility model when not in operation.
[0022] Figure 7 is a schematic structural view of the clamping cylinder of the utility model when in operation.
[0023] Figure 8 is an exploded view of the utility model.
[0024] Figure 9 is a diagram of the first working state of the utility model.
[0025] Figure 10 is a diagram of the second working state of the utility model.
[0026] Figure 11 is a diagram of the third working state of the utility model.
[0027] Figure 12 is a diagram of the fourth working state of the utility model. DETAILED DESCRIPTION OF THE EMBODIMENTS
[0028] To make the technical means, creative features, objectives and effects of the utility model easy to understand, the utility model is further elaborated below with reference to specific drawings.
[0029] Referring to Figures 1 to 12 the illustrated welding fixture for hollow square feet comprises a workbench 100, a first positioning device 10, a second positioning device 20, a first clamping device 30, a second clamping device 40, a sliding structure 50, and a control switch for controlling the operation of the first positioning device 10, the second positioning device 20, the first clamping device 30 and the second clamping device 40. The control switch in this embodiment is a pneumatic switch for controlling the operation of the first positioning device 10, the second positioning device 20, the first clamping device 30 and the second clamping device 40.
[0030] The workbench 100 is a long frame with a rectangular structure, and the workbench 100 is provided with slide rails 200 matched with the sliding structure 50. The sliding structure 50 in this embodiment includes four sliding blocks, wherein a support plate 51 for fixing the first positioning device 10, the second positioning device 20, the first clamping device 30 and the second clamping device 40 is arranged between two of the sliding blocks, and the four sliding blocks 50 are connected with the slide rails 200 arranged on the workbench 100. Specifically, there is one slide rail 200 on each of the left and right sides of the workbench 100, and each slide rail 200 is provided with two sliding blocks 50. The support plate 51 includes an upper support plate and a lower support plate, the upper support plate is connected with the two sliding blocks 50 arranged at the rear end of the workbench 100, and the lower support plate is connected with the two sliding blocks 50 arranged at the front end of the workbench 100.
[0031] The square frame foot 1 consists of a square frame foot upper crossbeam 1a, two square frame foot studs 1b connected with the square frame foot upper crossbeam 1a, and a square frame foot lower crossbeam 1c connected with the two square frame foot studs 1b.
[0032] The first positioning device 10 is arranged on the workbench 100 and used for positioning the square frame foot 1. The first positioning device 10 in this embodiment includes four first positioning blocks 11 arranged on the sliding structure 50, and every two first positioning blocks 11 are symmetrically arranged and spaced apart on the sliding structure 50. Specifically, two first positioning blocks 11 are symmetrically arranged on the lower support plate, and the other two first positioning blocks 11 are symmetrically arranged on the upper support plate.
[0033] Each first positioning block 11 is provided with a first positioning groove 11a for placing the square frame foot upper crossbeam 1a and the square frame foot lower crossbeam 1c.
[0034] The second positioning device 20 is arranged on the workbench 100 and used for positioning the square frame foot 1. The second positioning device 20 in this embodiment includes four second positioning blocks 21 arranged on the sliding structure 50, and every two second positioning blocks 21 are symmetrically arranged and spaced apart on the sliding structure 50. Specifically, two second positioning blocks 21 are symmetrically arranged on the lower support plate, and the other two second positioning blocks 21 are symmetrically arranged on the upper support plate.
[0035] Each second positioning block 21 is provided with a second positioning groove 21a for placing the two square frame foot studs 1b.
[0036] The first clamping device 30 is disposed on the workbench 100 and used to press the square-shaped frame foot 1. In this embodiment, the first clamping device 30 includes four first clamping cylinders for clamping the upper cross beam 1a and the lower cross beam 1c of the square-shaped frame foot, and every two first clamping cylinders 30 are arranged on the sliding structure 50 at intervals. Specifically, the four first clamping cylinders 30 are provided with an air inlet pipe 31 and an air outlet pipe 32 connected to the pneumatic switch, wherein two of the first clamping cylinders 30 are arranged on the lower support plate, and the other two first clamping cylinders are arranged on the upper support plate.
[0037] The second clamping device 40 is disposed on the workbench 100 and used to press the square-shaped frame foot 1. In this embodiment, the second clamping device 40 includes four second clamping cylinders for clamping the two leg columns 1b of the square-shaped frame foot, and every two second clamping cylinders 40 are arranged on the sliding structure 50 at intervals. Specifically, the four second clamping cylinders 40 are provided with an air inlet pipe 41 and an air outlet pipe 42 connected to the pneumatic switch, wherein two of the second clamping cylinders 30 are arranged on the lower support plate, and the other two second clamping cylinders are arranged on the upper support plate.
[0038] The sliding structure 50 is slidably disposed on the workbench 100 and connected to the first positioning device 10, the second positioning device 20, the first clamping device 30, and the second clamping device 40. In this embodiment, the sliding structure 50 includes four sliding blocks, wherein a support plate 51 for fixing the first positioning device 10, the second positioning device 20, the first clamping device 30 and the second clamping device 40 is disposed between two of the sliding blocks, and the four sliding blocks 50 are connected to the sliding rail 200 disposed on the workbench 100. Specifically, the four sliding blocks 50 are provided with through holes 50a for the positioning pins to pass through and to be fixed with the hole positions 200a on the sliding rail 200.
[0039] The working principle of the present utility model is as follows: firstly, the workbench 100 and the surface of the welding workpiece are cleaned to remove scrap iron filings, mud, dust and the like on the surface of the workbench 100, so as to ensure that there are no foreign matters between the workbench 100 and the workpiece; the sliding block 50 is moved on the sliding rail 200 to the welding position of the corresponding side foot, the sliding block 50 is fixed to the hole positions 200a and 50a on the sliding block 50 and the sliding rail 200 by using the positioning pin, the workbench 100 is adjusted to an exhaust pressure relief state through the pneumatic switch, and the first clamping cylinder 30 and the second clamping cylinder 40 are in a state that the support arms rise and rotate outwards; the upper cross beam 1a of the square-shaped side foot, the leg column 1b of the square-shaped side foot and the lower cross beam 1c of the square-shaped side foot are sequentially placed on the first positioning block 11 and the second positioning block 21, the inner and outer surfaces and the lower surface of the square-shaped side foot 1 are limited by the first positioning groove 11a and the second positioning groove 21a, and the contact surfaces at the two ends of the square-shaped side foot 1 are mutually limited to ensure that the square-shaped side foot 1 does not move; the pneumatic switch is turned on, the workbench 100 is adjusted to an air intake pressurization state, the support arms of the first clamping cylinder 30 and the second clamping cylinder 40 rotate 90 degrees to the upper part of the square-shaped side foot 1, and simultaneously contract downwards to press the upper surfaces of all components, so that the square-shaped side foot 1 is limited and fixed in both the horizontal direction and the vertical direction, and cannot move; after the square-shaped side foot 1 is clamped, the joint between the upper cross beam 1a of the square-shaped side foot and the leg column 1b of the square-shaped side foot and the joint between the leg column 1b of the square-shaped side foot and the lower cross beam 1c of the square-shaped side foot are welded respectively, so that the upper cross beam 1a of the square-shaped side foot, the leg column 1b of the square-shaped side foot and the lower cross beam 1c of the square-shaped side foot are welded into a whole. Since the upper cross beam 1a of the square-shaped side foot, the leg column 1b of the square-shaped side foot and the lower cross beam 1c of the square-shaped side foot are clamped and fixed, the three components will not deform and misplace due to factors such as welding heat during the welding process. After the welding and fixing are completed, the workbench 100 is adjusted to a pressure relief state through the pneumatic switch, the support arms of the first clamping cylinder 30 and the second clamping cylinder 40 rise and rotate outwards, and the workpiece is released; the welded square-shaped side foot 1a is taken out vertically upwards.
[0040] When it is necessary to weld the square-shaped side feet 1 of different lengths, the positioning pin can be knocked out, the sliding block 50 is moved, and then the sliding block 50 is fixed to the holes 50a and 200a on the sliding rail 200 through the positioning pin, so that rapid switching is realized, the efficiency of the welding tool is improved, and the welding and fixing of square-shaped side feet of different lengths can be adapted at the same time.
[0041] The basic principles, main features and advantages of the present utility model are shown and described above. It should be understood by those skilled in the art that the present utility model is not limited to the above embodiments, and that the above embodiments and the description in the specification only illustrate the principles of the present utility model. Various changes and improvements may be made to the present utility model without departing from the spirit and scope of the present utility model, and all such changes and improvements shall fall within the scope of the claimed present utility model. The scope of the present utility model is defined by the appended claims and equivalents thereof.
Claims
1. A welding fixture for the edge of a U-shaped character, characterized in that, comprises: a workbench; a first positioning device arranged on the workbench and used for positioning the rectangular frame corner; a second positioning device arranged on the workbench and used for positioning the rectangular frame corner; a first clamping device arranged on the workbench and used for compressing the rectangular frame corner; a second clamping device arranged on the workbench and used for compressing the rectangular frame corner; a sliding structure slidably disposed on the workbench and connected to the first positioning device, the second positioning device, the first clamping device and the second clamping device, and a control switch for controlling the operation of the first positioning device, the second positioning device, the first clamping device and the second clamping device.
2. The welding fixture for the edge of a U-shaped character according to claim 1, characterized in that, The rectangular frame corner consists of an upper beam of the rectangular frame corner, two corner posts of the rectangular frame corner connected with the upper beam of the rectangular frame corner, and a lower beam of the rectangular frame corner connected with the two corner posts of the rectangular frame corner.
3. The welding fixture for the edge of a U-shaped character according to claim 2, characterized in that, The first positioning device comprises four first positioning blocks arranged on the sliding structure, and every two first positioning blocks are symmetrically arranged and disposed on the sliding structure at intervals.
4. The welding fixture for the edge of a U-shaped character according to claim 3, characterized in that, Each of the first positioning blocks is provided with a first positioning groove for placing the upper beam of the rectangular frame corner and the lower beam of the rectangular frame corner.
5. The welding fixture for the edge of a U-shaped character according to claim 2, characterized in that, The second positioning device comprises four second positioning blocks arranged on the sliding structure, and every two second positioning blocks are symmetrically arranged and disposed on the sliding structure at intervals.
6. The welding fixture for the edge of a U-shaped character according to claim 5, characterized in that, Each of the second positioning blocks is provided with a second positioning groove for placing the two corner posts of the rectangular frame corner.
7. The welding fixture for the edge of a U-shaped character according to claim 2, characterized in that, The first clamping device comprises four first clamping air cylinders for clamping the upper beam of the rectangular frame corner and the lower beam of the rectangular frame corner, and every two first clamping air cylinders are arranged on the sliding structure at intervals.
8. The welding fixture for the edge of a U-shaped character according to claim 2, characterized in that, The second clamping device comprises four second clamping air cylinders for clamping the two corner posts of the rectangular frame corner, and every two second clamping air cylinders are arranged on the sliding structure at intervals.
9. The welding fixture for the edge of a U-shaped character according to claim 1, characterized in that, The sliding structure comprises four sliding blocks, wherein a support plate for fixing the first positioning device, the second positioning device, the first clamping device and the second clamping device is arranged between two of the sliding blocks, and the four sliding blocks are connected with slide rails arranged on the workbench.
10. The welding fixture for the edge of a U-shaped character according to claim 1, characterized in that, The control switch is a pneumatic switch for controlling the operation of the first positioning device, the second positioning device, the first clamping device and the second clamping device.