Screw welding machine

Abstract

The utility model discloses a screw welding machine which comprises a welding gun body and a welding gun head installed on one side of the welding gun body, one side of the welding gun body is fixedly connected with a plurality of supporting cylinders, and the interiors of the supporting cylinders are connected with supporting rods in a sliding mode. According to the screw welding machine, through the acting force of a second spring, a plurality of limiting rods drive a plurality of limiting blocks to extrude a screw in a welding gun head, the screw can be effectively prevented from falling off from the welding gun head, the screw on the welding gun head is aligned to a sheet metal part, a plurality of supporting rods make contact with the sheet metal part at the same time, and the welding gun head is prevented from falling off. Then the multiple supporting rods are downwards extruded to retract into the supporting barrel, the supporting rods can drive triangular plates on the limiting rods to move upwards through the limiting barrel, the triangular plates extrude trapezoidal plates to drive the limiting rods to retract into the limiting barrel, and therefore the screws in the welding gun head are tightly attached to the sheet metal part, and meanwhile the multiple limiting blocks do not extrude the screws any more; therefore, the screws can be conveniently welded, and the welding quality of the screws is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of welding machines, in particular to a screw welding machine. Background Art

[0002] Welding screws is one of the processes in the production of inflatable cabinets and switch cabinets. It mainly involves contacting one end of the screw with the surface of the sheet metal, then energizing the arc, and after the contact surface melts, applying a certain pressure to the screw to achieve welding.

[0003] During the welding process, the screws need to be placed in the gun head in advance and welded to the sheet metal through the gun head. However, the screws can easily slip out of the gun head, affecting the welding of the screws. In addition, when welding, the screws are manually aligned with the sheet metal, but manual operation can easily cause the screws to tilt, resulting in the end face of the screw not completely fitting the sheet metal, causing the screw welding to be skewed. Utility Model Content

[0004] In response to the shortcomings of the existing technology, the utility model provides a screw welding machine, which solves the problem that the screws easily slip out of the gun head, affecting the welding of the screws, and the screws easily tilt during manual operation, resulting in the end face of the screw not fully fitting the sheet metal, causing the screw welding to be skewed.

[0005] To achieve the above objectives, the utility model is implemented through the following technical solutions: a screw welding machine, comprising a welding gun body and a welding gun head installed on one side of the welding gun body, one side of the welding gun body is fixedly connected to a plurality of support cylinders, the interior of the support cylinder is slidably connected to a support rod, a first spring is fixedly connected between one side of the inner cavity of the support cylinder and one end of the support rod, the surface of the support rod is fixedly connected to a limiting cylinder, the interior of the limiting cylinder is slidably connected to the limiting rod, one end of the limiting rod is fixedly connected to a limiting block, and the surface of the limiting rod is provided with an extrusion mechanism.

[0006] Preferably, the extrusion mechanism includes a triangular plate, which is fixedly connected to the surface of the limiting rod, a fixing frame is fixedly connected to one side of the surface of the support cylinder, a trapezoidal plate that is adapted to the triangular plate is fixedly connected to one side of the fixing frame, and a second spring is fixedly connected inside the limiting cylinder and between the support rod and the other end of the limiting rod.

[0007] Preferably, a handle is fixedly connected to the bottom of the welding gun body, and a control button is fixedly installed on one side of the handle.

[0008] Preferably, connecting rings are fixedly connected to the surfaces of several of the support rods.

[0009] Preferably, a connecting plate is fixedly connected below the surface of the connecting ring.

[0010] Preferably, a pulling plate is fixedly connected to the lower side of the welding gun head.

[0011] Beneficial effects

[0012] The utility model provides a screw welding machine. Compared with the existing technology, it has the following beneficial effects:

[0013] (1) The utility model uses the force of the second spring to drive multiple limit rods to drive multiple limit blocks to squeeze the screws in the welding gun head, which can effectively prevent the screws from falling out of the welding gun head. The screws on the welding gun head are aligned with the sheet metal, so that multiple support rods are in contact with the sheet metal at the same time, and then the multiple support rods are squeezed downward to shrink into the support tube. The support rods will drive the triangular plate on the limit rod to move upward through the limit tube, so that the triangular plate squeezes the trapezoidal plate to drive the limit rod to shrink into the limit tube, so that the screws in the welding gun head are close to the sheet metal, and the multiple limit blocks no longer squeeze the screws, so that the screws can be welded conveniently, ensuring the quality of screw welding.

[0014] (2) The utility model enables the welding gun head to be aligned straight on the sheet metal part by having multiple support rods contact the sheet metal part at the same time, effectively preventing the screw from tilting and ensuring the horizontality of the screw welding. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the external structure of the utility model;

[0016] Figure 2 This is a structural diagram of the welding gun head, support tube, support rod, limit tube, limit rod, triangular plate, fixing frame, trapezoidal plate and connecting ring of the utility model;

[0017] Figure 3 It is a schematic diagram of the internal structure of the support cylinder, support rod, first spring, limit cylinder, limit rod, limit block and extrusion mechanism of the utility model.

[0018] In the figure: 1. Welding gun body; 2. Welding gun head; 3. Support tube; 4. Support rod; 5. First spring; 6. Limiting tube; 7. Limiting rod; 8. Limiting block; 9. Extrusion mechanism; 10. Handle; 11. Control button; 12. Connecting ring; 13. Connecting plate; 14. Pulling plate; 91. Triangular plate; 92. Fixing frame; 93. Trapezoidal plate; 94. Second spring. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0020] See also Figure 1-3The utility model provides a technical solution: a screw welding machine, comprising a welding gun body 1 and a welding gun head 2 installed on one side of the welding gun body 1, one side of the welding gun body 1 is fixedly connected to a plurality of support cylinders 3, the interior of the support cylinder 3 is slidably connected to a support rod 4, a first spring 5 is fixedly connected between one side of the inner cavity of the support cylinder 3 and one end of the support rod 4, the surface of the support rod 4 is fixedly connected to a limiting cylinder 6, the interior of the limiting cylinder 6 is slidably connected to a limiting rod 7, one end of the limiting rod 7 is fixedly connected to a limiting block 8, the limiting block 8 is made of rubber, and the surface of the limiting rod 7 is provided with an extrusion mechanism 9.

[0021] Furthermore, in order to facilitate the pushing of the limit rod 7 into the limit cylinder 6, the extrusion mechanism 9 includes a triangular plate 91, which is fixedly connected to the surface of the limit rod 7, and a fixing frame 92 is fixedly connected to one side of the surface of the support cylinder 3. A trapezoidal plate 93 that is adapted to the triangular plate 91 is fixedly connected to one side of the fixing frame 92, and a second spring 94 is fixedly connected inside the limit cylinder 6 and between the support rod 4 and the other end of the limit rod 7.

[0022] Furthermore, in order to control welding, a handle 10 is fixedly connected to the bottom of the welding gun body 1 , and a control button 11 is fixedly installed on one side of the handle 10 .

[0023] Furthermore, in order to facilitate pulling the support rod 4 and drive multiple limit blocks 8 to move outward and open, the surfaces of several support rods 4 are fixedly connected with connecting rings 12, the bottom of the surface of the connecting ring 12 is fixedly connected with a connecting plate 13, and the bottom of one side of the welding gun head 2 is fixedly connected with a pulling plate 14.

[0024] When in use, by holding the handle 10, the welding gun head 2 is aimed downwardly at the sheet to be welded, so that the screws in the welding gun head 2 are aligned with the sheet, and by holding the handle 10, the welding gun body 1 and the welding gun head 2 are pressed down, so that the three support rods 4 around the welding gun head 2 first contact the sheet, so that the three support rods 4 are completely in contact with the sheet, and the welding gun head 2 will be horizontally on the sheet, and then the welding gun head 2 is continued to be pressed down to push the support rods 4 to squeeze the sheet, and multiple support rods 4 will retract into the support tube 3. The upward movement and contraction of the support rod 4 will drive the triangular plate 91 to move upward, and the triangular plate 91 will be squeezed against the trapezoidal plate 93 upward, so that the triangular plate 91 is squeezed and retracted into the limiting tube 6 through the limiting rod 7, so that the multiple limiting rods 7 drive the multiple limiting blocks 8 to move outwards respectively, so that the multiple limiting blocks 8 no longer squeeze the screws in the welding gun head 2, and the screws are squeezed downward by the welding gun head 2 to be close to the sheet, and then the control button 11 is pressed to weld the screws in the welding gun head 2 to the sheet;

[0025] After the screw is welded, the first spring 5 pushes the support rod 4 out of the support tube 3 and resets it, and then the limit block 8 on the limit rod 7 is pushed back to reset by the force of the second spring 94. When the next welding bolt needs to be inserted into the welding gun head 2, the pulling plate 14 is pulled by the index finger on the handle 10. The pulling plate 14 will drive the connecting ring 12 to move through the connecting plate 13, and the connecting ring 12 will drive multiple support rods 4 to retract into the support tube 3. The connecting ring 12 will move through the limiting tube 6 and the limiting rod 7, so that the triangular plate 91 on the limiting rod 7 squeezes the trapezoidal plate 93, so that the triangular plate 91 retracts into the limiting tube 6 through the limiting rod 7, so that multiple limiting rods 7 drive multiple limit blocks 8 to be pulled outward, and then the bolt is inserted into the welding gun head 2. By no longer pulling the pulling plate 14, the multiple limit blocks 8 are moved toward the middle to squeeze and limit the screw through the force of the second spring 94.

Claims

1. A screw welding machine, comprising a welding gun body (1) and a welding gun head (2) mounted on one side of the welding gun body (1), characterized in that: One side of the welding gun body (1) is fixedly connected to a plurality of support cylinders (3), the interior of the support cylinder (3) is slidably connected to a support rod (4), a first spring (5) is fixedly connected between one side of the inner cavity of the support cylinder (3) and one end of the support rod (4), the surface of the support rod (4) is fixedly connected to a limiting cylinder (6), the interior of the limiting cylinder (6) is slidably connected to a limiting rod (7), one end of the limiting rod (7) is fixedly connected to a limiting block (8), and the surface of the limiting rod (7) is provided with an extrusion mechanism (9).

2. A screw welding machine according to claim 1, characterized in that: The extrusion mechanism (9) comprises a triangular plate (91), the triangular plate (91) being fixedly connected to the surface of the limiting rod (7), a fixing frame (92) being fixedly connected to one side of the surface of the support cylinder (3), a trapezoidal plate (93) adapted to the triangular plate (91) being fixedly connected to one side of the fixing frame (92), and a second spring (94) being fixedly connected inside the limiting cylinder (6) and between the supporting rod (4) and the other end of the limiting rod (7).

3. The screw welding machine according to claim 1, characterized in that: The bottom of the welding gun body (1) is fixedly connected to a handle (10), and a control button (11) is fixedly installed on one side of the handle (10).

4. The screw welding machine according to claim 1, characterized in that: The surfaces of the plurality of support rods (4) are fixedly connected with connecting rings (12).

5. The screw welding machine according to claim 4, characterized in that: A connecting plate (13) is fixedly connected below the surface of the connecting ring (12).

6. The screw welding machine according to claim 1, characterized in that: A pulling plate (14) is fixedly connected to the lower side of one side of the welding gun head (2).

Images