Projection welding mechanism with secondary positioning function

Abstract

The utility model relates to the technical field of projection welding mechanisms, in particular to a projection welding mechanism with a secondary positioning function, which comprises a base, a projection welding machine main body is fixedly mounted on one side of the base, a machine seat is fixedly mounted on one side of the projection welding machine main body, and an electrode structure is arranged on the machine seat. The automatic welding device has the advantages that the hydraulic cylinder, the movable seat, the welding workbench, the extension plate, the adjusting sliding groove, the adjusting sliding block, the locking threaded rod, the locking nut and the clamping structure are arranged in a matched mode, so that the clamping structure is not fixed any more; according to the projection welding mechanism, the two clamping structures can be adjusted to proper positions according to the length of a workpiece, and the height of the welding workbench can be adjusted according to the actual height or thickness of the workpiece, so that the projection welding mechanism can carry out positioning and clamping operation on the workpiece in a wide range, and the application range of the projection welding mechanism is widened; and the practicability and the structural flexibility of the projection welding mechanism are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of projection welding mechanisms, in particular to a projection welding mechanism with a secondary positioning function. Background Art

[0002] The projection welding machine adopts pneumatic pressurization, bearing guide, and the welding process is automatically controlled by a microcomputer control box. It has the characteristics of precise welding point control and good electrode follow-up. It is widely used in multi-point projection welding and spot welding of mechanical parts such as auto parts. There are many types of projection welding. In addition to plate projection welding, there are also projection welding of nuts, screw parts, cross projection welding of wires, projection welding of pipes, and T-shaped projection welding of plates. It meets the user's requirements for welding workpieces. Different electrodes and molds can be selected. It is widely used in industrial sectors such as automobile manufacturing, tractor manufacturing, and motorcycle manufacturing.

[0003] The electrode of a projection welding machine is generally mounted on a cylinder. When processing a plate-like workpiece, the workpiece is placed on a welding workbench, and the cylinder drives the electrode to move downward so as to perform welding operations on the workpiece. In the prior art, the workpiece is generally fixed by pressing the workpiece with the pressure of the electrode. Although stability during welding can be guaranteed, if vibration occurs during the downward movement of the electrode, the workpiece may be shifted in position, thereby affecting the processing effect of the workpiece. Although some projection welding machines have added a clamping structure for clamping both sides of the workpiece by means of components such as an electric push rod, and the clamping structure is installed on the welding workbench, the position of the clamping structure is generally fixed, resulting in a limited range of clamping the workpiece by the clamping structure of the electric push rod. When the length of the workpiece to be processed is greater than the length of the welding workbench, the workpiece cannot be clamped by the clamping structure, which reduces the practicability of the projection welding machine. Therefore, a projection welding mechanism with a secondary positioning function is needed to solve the above problems. Utility Model Content

[0004] The purpose of the present invention is to solve at least one of the above technical deficiencies.

[0005] Therefore, one purpose of the utility model is to provide a projection welding mechanism with a secondary positioning function to solve the problems mentioned in the background technology and overcome the deficiencies in the prior art.

[0006] In order to achieve the above-mentioned purpose, an embodiment of the utility model on one side provides a projection welding mechanism with a secondary positioning function, including a base, a projection welding machine body is fixedly installed on one side of the base, a machine base is fixedly installed on one side of the projection welding machine body, an electrode structure is arranged on the machine base, a hydraulic cylinder is fixedly installed on one side of the base, the output end of the hydraulic cylinder is fixedly connected to a moving seat, the top side of the moving seat is fixedly connected to a welding workbench, two symmetrical side surfaces of the welding workbench are fixedly connected to extension plates, one side of the two extension plates are provided with an adjusting groove, the inner walls of the two adjusting grooves are slidably connected to adjusting sliders, one side of the two adjusting sliders are fixedly connected to locking threaded rods, the outer surfaces of the two locking threaded rods are threadedly connected to locking nuts, and the top sides of the two adjusting sliders are fixedly connected to clamping structures.

[0007] Preferably, any of the above schemes comprises a mounting seat, an electric push rod, a movable plate, a guide rod and a clamping plate, the top side of the adjusting slider is fixedly connected to the mounting seat, an electric push rod is fixedly installed on one side of the mounting seat, the output end of the electric push rod is fixedly connected to the movable plate, four guide rods are fixedly connected to one side of the movable plate, and a clamping plate is fixedly connected to one end of the four guide rods away from the movable plate.

[0008] Preferably, any of the above schemes comprises a cylinder, an electrode mounting seat and an electrode, the cylinder is fixedly mounted on the top side of the machine base, the electrode mounting seat is fixedly mounted on the output end of the cylinder, and the electrode is fixedly mounted on the side of the electrode mounting seat away from the cylinder.

[0009] Preferably, any of the above schemes has a guide rail fixedly mounted on one side of the projection welding machine body, and a slide seat slidably connected to the guide rail is fixedly connected to one side of the welding workbench and the electrode mounting seat.

[0010] Preferably, any of the above schemes is that a limiting groove connected to the adjusting slide groove is opened on one side of the extension plate, the locking threaded rod passes through the inside of the limiting groove, and the locking threaded rod is slidably connected to the limiting groove.

[0011] Preferably, any of the above schemes is that the electric push rod is located inside a space formed by four guide rods, the guide rods penetrate the mounting seat, and the guide rods are slidably connected to the mounting seat.

[0012] Compared with the prior art, the advantages and beneficial effects of the utility model are:

[0013] Through the coordinated arrangement of the hydraulic cylinder, movable seat, welding workbench, extension plate, adjusting slide groove, adjusting slider, locking threaded rod, locking nut and clamping structure, the clamping structure is no longer fixed. When the length of the workpiece is greater than the length of the welding workbench, the two clamping structures can be adjusted to suitable positions according to the length of the workpiece, and the height of the welding workbench can be adjusted according to the actual height or thickness of the workpiece, so that the projection welding mechanism can perform positioning and clamping operations on a wider range of workpieces, thereby expanding the application scope of the projection welding mechanism and improving the practicality and structural flexibility of the projection welding mechanism. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the structure of the utility model from a first perspective;

[0015] Figure 2 This is a schematic diagram of the structure of the utility model from a second viewing angle;

[0016] Figure 3 This is a schematic diagram of the structure of the utility model from a third viewing angle;

[0017] Figure 4 This is a schematic structural diagram of the welding workbench and its connecting components from the first perspective of the utility model;

[0018] Figure 5 This is a schematic structural diagram of the welding workbench and its connecting components from a second viewing angle of the utility model;

[0019] Figure 6 It is a structural schematic diagram of the clamping structure and its connecting components of the utility model.

[0020] In the figure: 1-base, 2-projection welding machine body, 3-machine base, 4-electrode structure, 401-cylinder, 402-electrode mounting seat, 403-electrode, 5-hydraulic cylinder, 6-movable seat, 7-welding workbench, 8-extension plate, 9-adjusting slide groove, 10-adjusting slider, 11-locking threaded rod, 12-locking nut, 13-clamping structure, 1301-mounting seat, 1302-electric push rod, 1303-moving plate, 1304-guide rod, 1305-clamping plate, 14-guide rail, 15-slide seat, 16-limiting groove. DETAILED DESCRIPTION

[0021] The utility model is further described below in conjunction with the accompanying drawings, but the protection scope of the utility model is not limited to the following description.

[0022] like Figures 1 to 6As shown, a projection welding mechanism with a secondary positioning function comprises a base 1, a projection welding machine body 2 is fixedly installed on one side of the base 1, a machine base 3 is fixedly installed on one side of the projection welding machine body 2, an electrode structure 4 is arranged on the machine base 3, a hydraulic cylinder 5 is fixedly installed on one side of the base 1, a movable seat 6 is fixedly connected to the output end of the hydraulic cylinder 5, a welding workbench 7 is fixedly connected to the top side of the movable seat 6, and two symmetrical side surfaces of the welding workbench 7 are fixedly connected to extension plates 8, one side of the two extension plates 8 is provided with an adjustment slot 9, and the inner walls of the two adjustment slots 9 are An adjusting slider 10 is slidably connected, one side of the two adjusting sliders 10 is fixedly connected with a locking threaded rod 11, the outer surfaces of the two locking threaded rods 11 are threadedly connected with a locking nut 12, and the top sides of the two adjusting sliders 10 are fixedly connected with a clamping structure 13, and the positions of the two clamping structures 13 correspond. When the workpiece is welded, the workpiece is placed on the welding workbench 7, and then the two sides of the workpiece can be initially clamped and positioned through the two clamping structures 13, and then the electrode structure 4 can be used to process the workpiece.

[0023] As an optional technical solution of the utility model, the clamping structure 13 includes a mounting seat 1301, an electric push rod 1302, a movable plate 1303, a guide rod 1304 and a clamping plate 1305. The top side of the adjusting slider 10 is fixedly connected to the mounting seat 1301, one side of the mounting seat 1301 is fixedly installed with an electric push rod 1302, the output end of the electric push rod 1302 is fixedly connected to the movable plate 1303, one side of the movable plate 1303 is fixedly connected with four guide rods 1304, and one end of the four guide rods 1304 away from the movable plate 1303 is fixedly connected with a clamping plate 1305, which can clamp and position the two sides of the workpiece.

[0024] As an optional technical solution of the utility model, the electrode structure 4 includes a cylinder 401, an electrode mounting seat 402 and an electrode 403. The cylinder 401 is fixedly installed on the top side of the machine base 3, the electrode mounting seat 402 is fixedly installed on the output end of the cylinder 401, and the electrode 403 is fixedly installed on the side of the electrode mounting seat 402 away from the cylinder 401. After the clamping structure 13 performs the initial clamping and positioning operation on the workpiece, the cylinder 401 is started to make the electrode mounting seat 402 drive the electrode 403 to move downward, so that the electrode 403 is closely fitted to the workpiece, and the workpiece is clamped and positioned again under the pressure of the electrode 403, so that the projection welding mechanism has a secondary positioning function for the workpiece.

[0025] As an optional technical solution of the present invention, a guide rail 14 is fixedly installed on one side of the projection welding machine body 1, and a slide 15 slidably connected to the guide rail 14 is fixedly connected to one side of the welding workbench 7 and the electrode mounting seat 402. The guide rail 14 and the slide 15 enable the welding workbench 7 and the electrode mounting seat 402 to move smoothly in the vertical direction.

[0026] As an optional technical solution of the present invention, a limiting groove 16 connected to the adjusting slide groove 9 is opened on one side of the extension plate 8, and the locking threaded rod 11 passes through the inside of the limiting groove 16. The locking threaded rod 11 is slidingly connected with the limiting groove 16, so that the locking threaded rod 11 can move smoothly along the direction of the limiting groove 16, and the maximum diameter of the locking threaded rod 11 is equal to the width of the limiting groove 16, which can prevent the locking threaded rod 11 from shaking during the movement.

[0027] As an optional technical solution of the present invention, the electric push rod 1302 is located inside the space formed by four guide rods 1304. The guide rods 1304 penetrate the mounting seat 1301. The guide rods 1304 are slidingly connected to the mounting seat 1301, so that the guide rods 1304 can drive the splint 1305 to move smoothly.

[0028] A projection welding mechanism with a secondary positioning function, when the length of the workpiece is greater than the length of the welding table 7, the welding working principle of the workpiece is as follows:

[0029] 1) Move the clamping structure 13 to drive the adjusting slider 10 to move, adjust the clamping structure 13 to a suitable position, and rotate the locking nut 12 to make it fit tightly with the extension plate 8, so as to fix the clamping structure 13 in a suitable position;

[0030] 2) placing the workpiece on the top side of the welding table 7;

[0031] 3) Start the two electric push rods 1302 so that their output ends drive the moving plate 1303 to move toward the workpiece. At this time, the guide rod 1304 drives the clamping plate 1305 to move toward the workpiece, and the two clamping plates 1305 are used to clamp the two sides of the workpiece;

[0032] 4) Start the hydraulic cylinder 5 to make the moving seat 6 drive the welding table 7 to move upward, and adjust the welding table 7 to a suitable height according to the size of the workpiece;

[0033] 5) Start the cylinder 401 to make the electrode mounting seat 402 drive the electrode 403 to move downward, and make the electrode 403 fit closely with the workpiece. At this time, the workpiece is processed through the electrode 403.

[0034] To sum up, the projection welding mechanism with a secondary positioning function, through the coordinated arrangement of the hydraulic cylinder 5, the movable seat 6, the welding workbench 7, the extension plate 8, the adjusting slide groove 9, the adjusting slider 10, the locking threaded rod 11, the locking nut 12 and the clamping structure 13, makes the clamping structure 13 no longer fixed. When the length of the workpiece is greater than the length of the welding workbench 7, the two clamping structures 13 can be adjusted to a suitable position according to the length of the workpiece, and the height of the welding workbench 7 can be adjusted according to the actual height or thickness of the workpiece, so that the projection welding mechanism can perform positioning and clamping operations on a wider range of workpieces, thereby expanding the application scope of the projection welding mechanism and improving the practicality and structural flexibility of the projection welding mechanism.

Claims

1. A projection welding mechanism with a secondary positioning function, characterized in that: It comprises a base, a projection welding machine body is fixedly mounted on one side of the base, a machine base is fixedly mounted on one side of the projection welding machine body, and an electrode structure is arranged on the machine base; A hydraulic cylinder is fixedly installed on one side of the base, a movable seat is fixedly connected to the output end of the hydraulic cylinder, a welding workbench is fixedly connected to the top side of the movable seat, two symmetrical side surfaces of the welding workbench are fixedly connected to extension plates, one side of the two extension plates is provided with an adjustment slot, the inner walls of the two adjustment slots are slidably connected to adjustment sliders, one side of the two adjustment sliders is fixedly connected to a locking threaded rod, and the outer surfaces of the two locking threaded rods are threadedly connected to locking nuts; Wherein, the top sides of the two adjusting slide blocks are fixedly connected with a clamping structure.

2. A projection welding mechanism with a secondary positioning function according to claim 1, characterized in that: The clamping structure includes a mounting seat, an electric push rod, a movable plate, a guide rod and a clamping plate. The top side of the adjusting slider is fixedly connected to the mounting seat, an electric push rod is fixedly installed on one side of the mounting seat, an output end of the electric push rod is fixedly connected to the movable plate, four guide rods are fixedly connected to one side of the movable plate, and a clamping plate is fixedly connected to one end of the four guide rods away from the movable plate.

3. A projection welding mechanism with a secondary positioning function according to claim 2, characterized in that: The electrode structure comprises a cylinder, an electrode mounting seat and an electrode. The cylinder is fixedly mounted on the top side of the machine seat, the electrode mounting seat is fixedly mounted on the output end of the cylinder, and the electrode is fixedly mounted on the side of the electrode mounting seat away from the cylinder.

4. A projection welding mechanism with a secondary positioning function according to claim 3, characterized in that: A guide rail is fixedly installed on one side of the projection welding machine body, and a sliding seat which is slidably connected to the guide rail is fixedly connected on one side of the welding workbench and the electrode mounting seat.

5. The projection welding mechanism with a secondary positioning function according to claim 4, characterized in that: A limiting groove communicated with the adjusting sliding groove is formed on one side of the extension plate, and the locking threaded rod passes through the inside of the limiting groove, and the locking threaded rod is slidably connected to the limiting groove.

6. A projection welding mechanism with a secondary positioning function according to claim 5, characterized in that: The electric push rod is located in a space formed by four guide rods, the guide rods penetrate the mounting seat, and the guide rods are slidably connected to the mounting seat.

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