Quick positioning mechanism for welding head of spot welding machine

Abstract

The utility model discloses a spot welding machine welding head quick positioning mechanism which comprises a spot welding machine body, and a welding head positioning mechanism is installed on the lower portion of the front side of the spot welding machine body through bolts. By installing the welding head positioning mechanism, when the upper welding head and the lower welding head are not located on the same vertical line, the lower welding head can move front and back through the front-back adjusting assembly, the lower welding head can be adjusted left and right through the left-right adjusting assembly, then welding positioning of the spot welding machine on a workpiece is facilitated, welding accuracy is improved, and welding efficiency is improved. In addition, the height of the upper welding head can be adjusted through a first air cylinder, the position of the upper welding head can be adjusted according to different workpieces, an infrared emitter is arranged on the upper welding head, an infrared receiver is arranged on the lower welding head, and when the lower welding head is adjusted till the upper welding head and the lower welding head are in one-to-one correspondence, an infrared sensor gives an alarm through a signal processing module. Therefore, people are warned to align and position the upper and lower welding heads, and accurate positioning is realized.

Description

Technical Field

[0001] The utility model relates to the technical field of spot welding machines, in particular to a quick positioning mechanism for the welding heads of a spot welding machine. Background Technique

[0002] A spot welding machine is a mechanical device that adopts the principle of double-sided double-point overcurrent welding. When working, two electrodes press the workpiece, so that a certain contact resistance is formed between two layers of metal under the pressure of the two electrodes. When the welding current flows from one electrode to the other electrode, instantaneous hot melting connection is formed at the two contact resistance points. Since the spot welding machine uses the upper welding electrode and the lower welding electrode in cooperation for welding, it is necessary to make the upper welding electrode and the lower welding electrode on a vertical line. However, after using for a period of time, the upper welding electrode and the lower welding electrode deviate, so that they are no longer on a vertical line, thereby affecting the positioning welding of the workpiece.

[0003] In the prior art, the publication number is CN220259835U, and the technical solution disclosed in the patent document is as follows: An adjustable spot welding machine with precise positioning, including a spot welding machine main body, a control box for control is arranged on the front side of the spot welding machine main body, an upper seat body is fixedly connected above the left side of the spot welding machine main body, a driving cylinder is fixedly installed above the upper seat body, a driving block is arranged below the upper seat body, an electrode arm is further connected to the side of the driving block away from the spot welding machine main body, an upper welding electrode is penetrated and connected on the electrode arm, a lower seat body is fixedly installed below the left side of the spot welding machine main body, and an adjusting structure is arranged above the lower seat body.

[0004] The above technical solution can only adjust the upper and lower welding heads that are not on a vertical line back and forth. However, if the upper and lower welding heads deviate left and right, they cannot be adjusted, and it is difficult to adjust the upper and lower welding heads to a vertical line. Content of the Utility Model

[0005] The purpose of the utility model is to provide a quick positioning mechanism for the welding heads of a spot welding machine to solve the problems raised in the above background technique.

[0006] To achieve the above purpose, the utility model provides the following technical solution: A quick positioning mechanism for the welding heads of a spot welding machine, including a spot welding machine main body, and a welding head positioning mechanism is bolted and installed below the front side of the spot welding machine main body.

[0007] The welding head positioning mechanism includes a left-right adjustment component, the left-right adjustment component is arranged below the front side of the spot welding machine main body, and a front-back adjustment component is fixedly installed on the front side of the left-right adjustment component.

[0008] As a further preference of the present technical solution, a control box is provided on one side of the spot welder main body. A first cylinder is installed above the front side of the spot welder main body. The output end of the first cylinder is fixedly connected to an upper connecting seat, and an upper welding head is arranged on the front side of the upper connecting seat.

[0009] As a further preference of the present technical solution, the left - right adjustment assembly includes a mounting plate. The mounting plate is arranged below the front side of the spot welder main body. T - shaped grooves are opened at both the upper and lower ends of the front side of the mounting plate, and a mounting groove is opened in the middle of the front side of the mounting plate. T - shaped blocks are slidably connected to the inner walls of the T - shaped grooves.

[0010] As a further preference of the present technical solution, a screw rod is arranged in the mounting groove through a bearing. A sleeve is threadedly connected to the outer wall of the screw rod and is slidably connected to the inner wall of the mounting groove. A handle is arranged at one end of the screw rod.

[0011] In the above - mentioned technical solution, the provided left - right adjustment assembly can adjust the lower welding head left and right.

[0012] As a further preference of the present technical solution, the front - rear adjustment assembly includes a connecting seat. The rear side of the connecting seat is fixedly connected to the T - shaped block and the sleeve. A sliding groove is opened on the front side of the connecting seat, and a sliding block is slidably connected to the inner wall of the sliding groove. A second cylinder is installed on the rear side of the connecting seat, and the output end of the second cylinder is connected to the sliding block.

[0013] In the above - mentioned technical solution, the provided front - rear adjustment assembly enables the lower welding head to move back and forth.

[0014] As a further preference of the present technical solution, the upper end of the sliding block is fixedly connected to a lower connecting seat. A lower welding head is arranged on the front side of the lower connecting seat, and the lower welding head and the upper welding head are on the same vertical line. Infrared receivers are arranged at the upper - corner positions above the lower connecting seat.

[0015] As a further preference of the present technical solution, infrared transmitters are arranged at the lower - corner positions below the upper connecting seat, and the infrared transmitters and the infrared receivers are in one - to - one correspondence.

[0016] In the above - mentioned technical solution, infrared receivers are arranged on the lower welding head. When the lower welding head is adjusted until the upper and lower welding heads are in one - to - one correspondence and the infrared sensors send out an alarm through the signal processing module, people are alerted that the upper and lower welding heads are aligned and positioned, achieving precise positioning.

[0017] The present utility model provides a rapid positioning mechanism for the welding head of a spot welder, having the following beneficial effects:

[0018] (1) By installing a welding head positioning mechanism in the present utility model, when the upper welding head and the lower welding head are not on the same vertical line, the front and rear adjustment components are provided to enable the lower welding head to move forward and backward, and the left and right adjustment components can adjust the lower welding head left and right. When adjusting, the lower welding head is adjusted through cylinder two and the handle, which is convenient for adjustment and rapid positioning until the upper and lower welding heads are on the same vertical line, thereby facilitating the welding positioning of the workpiece by the spot welder and improving the welding accuracy. In addition, the height of the upper welding head can be adjusted through cylinder one, and the position of the upper welding head can be adjusted according to different workpieces.

[0019] (2) In the present utility model, an infrared emitter is provided on the upper welding head and an infrared receiver is provided on the lower welding head. When adjusting the lower welding head until the upper and lower welding heads correspond one by one and the infrared sensor emits an alarm through the signal processing module, people are alerted to align and position the upper and lower welding heads, achieving precise positioning. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 is a schematic structural diagram of the whole of the present utility model;

[0021] Figure 2 is a schematic structural diagram of the welding head positioning mechanism of the present utility model;

[0022] Figure 3 is a schematic structural diagram of the left and right adjustment components of the present utility model;

[0023] Figure 4 is an enlarged view of FIG. A of the present utility model;

[0024] In the figure: 1. Spot welder main body; 2. Welding head positioning mechanism; 11. Control box; 12. Cylinder one; 13. Upper connecting seat; 14. Upper welding head; 15. Infrared emitter; 21. Left and right adjustment components; 22. Front and rear adjustment components; 211. Mounting plate; 212. T-shaped groove; 213. Mounting groove; 214. T-shaped block; 215. Screw; 216. Sleeve; 217. Handle; 221. Connecting seat; 222. Sliding groove; 223. Slide block; 224. Cylinder two; 225. Lower connecting seat; 226. Infrared receiver; 227. Lower welding head. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0025] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model.

[0026] The present utility model provides a technical solution: As Figure 1As shown in the figure, in this embodiment, a rapid positioning mechanism for the welding head of a spot welder includes a spot welder main body 1. A welding head positioning mechanism 2 is bolted and installed below the front side of the spot welder main body 1. A control box 11 is provided on one side of the spot welder main body 1. A first cylinder 12 is installed above the front side of the spot welder main body 1. The output end of the first cylinder 12 is fixedly connected to an upper connecting seat 13. An upper welding head 14 is provided on the front side of the upper connecting seat 13.

[0027] As Figure 2 , Figure 3 and Figure 4 shown, the welding head positioning mechanism 2 includes a left - right adjustment assembly 21. The left - right adjustment assembly 21 is arranged below the front side of the spot welder main body 1. A front - rear adjustment assembly 22 is fixedly installed on the front side of the left - right adjustment assembly 21. The left - right adjustment assembly 21 includes a mounting plate 211. The mounting plate 211 is arranged below the front side of the spot welder main body 1. T - shaped grooves 212 are opened at both the upper and lower ends of the front side of the mounting plate 211. An installation groove 213 is opened in the middle of the front side of the mounting plate 211. T - shaped blocks 214 are slidably connected to the inner walls of the T - shaped grooves 212. A screw rod 215 is arranged in the installation groove 213 through a bearing. A sleeve 216 is threadedly connected to the outer wall of the screw rod 215 and is slidably connected to the inner wall of the installation groove 213. One end of the screw rod 215 is provided with a handle 217. The front - rear adjustment assembly 22 includes a connecting seat 221. The rear side of the connecting seat 221 is fixedly connected to the T - shaped block 214 and the sleeve 216. A sliding groove 222 is opened on the front side of the connecting seat 221. A slider 223 is slidably connected to the inner wall of the sliding groove 222. A second cylinder 224 is installed on the rear side of the connecting seat 221, and the output end of the second cylinder 224 is connected to the slider 223. By installing the welding head positioning mechanism 2, when the upper welding head 14 and the lower welding head 227 are not on the same vertical line, the lower welding head 227 can be moved back and forth through the provided front - rear adjustment assembly 22. The provided left - right adjustment assembly 21 can adjust the lower welding head 227 left and right. And during adjustment, the lower welding head 227 is adjusted through the second cylinder 224 and the handle 217. The adjustment is convenient and the positioning is rapid until the upper and lower welding heads are on the same vertical line. Thus, it is convenient for the spot welder to position the workpiece and improves the welding accuracy. In addition, the height of the upper welding head 14 can be adjusted through the first cylinder 12, and the position of the upper welding head can be adjusted according to different workpieces.

[0028] As Figure 1 and Figure 2As shown in the figure, a lower connecting seat 225 is fixedly connected to the upper end of the slider 223. A lower welding head 227 is arranged on the front side of the lower connecting seat 225, and the lower welding head 227 and the upper welding head 14 are located on the same vertical line. Infrared receivers 226 are arranged at the upper corners of the lower connecting seat 225, and infrared transmitters 15 are arranged at the lower corners of the upper connecting seat 13. The infrared transmitters 15 and the infrared receivers 226 are in one-to-one correspondence. By arranging the infrared transmitters 15 on the upper welding head 14 and the infrared receivers 226 on the lower welding head 227, when the lower welding head 227 is adjusted until the upper and lower welding heads 227 are in one-to-one correspondence and the infrared sensor gives an alarm through the signal processing module, people can be alerted to align the upper and lower welding heads, thus achieving precise positioning.

[0029] The present utility model provides a rapid positioning mechanism for the welding heads of a spot welder. The specific working principle is as follows: Place the workpiece to be welded between the infrared transmitter 15 and the lower welding head 227 for welding. If the infrared transmitter 15 and the lower welding head 227 are offset due to long-term use and need to be adjusted, that is, the slider 223 is pulled to move by the cylinder two 224, so that the lower welding head 227 can be moved back and forth. The handle 217 is used to drive the screw 215 to rotate, so that the sleeve 216 moves on the screw 215. At the same time, the upper and lower T-shaped blocks 214 slide in the T-shaped groove 212, and the lower welding head 227 can be moved left and right until the infrared transmitter 15 and the infrared receiver 226 are in one-to-one correspondence and an alarm is given, alerting people that they are aligned, and then rapid positioning can be achieved.

[0030] Although the embodiments of the present utility model have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.

Claims

1. A spot welding machine welding head quick positioning mechanism, comprising a spot welding machine body (1), characterized in that: A welding head positioning mechanism (2) is bolted to the lower front side of the spot welding machine body (1); The welding head positioning mechanism (2) comprises a left-right adjustment component (21), the left-right adjustment component (21) is arranged below the front side of the spot welding machine body (1), and a front-rear adjustment component (22) is fixedly installed on the front side of the left-right adjustment component (21).

2. A spot welding machine welding head quick positioning mechanism according to claim 1, characterized in that: A control box (11) is arranged on one side of the spot welding machine body (1); a cylinder 1 (12) is installed on the upper front side of the spot welding machine body (1); an upper connecting seat (13) is fixedly connected to the output end of the cylinder 1 (12); and an upper welding head (14) is arranged on the front side of the upper connecting seat (13).

3. A spot welding machine welding head quick positioning mechanism according to claim 1, characterized in that: The left-right adjustment assembly (21) comprises a mounting plate (211), the mounting plate (211) being arranged below the front side of the spot welding machine body (1), the upper and lower ends of the front side of the mounting plate (211) being provided with T-shaped grooves (212), the middle part of the front side of the mounting plate (211) being provided with a mounting groove (213), and the inner wall of the T-shaped groove (212) being slidably connected with a T-shaped block (214).

4. A spot welding machine welding head quick positioning mechanism according to claim 3, characterized in that: A screw rod (215) is arranged in the installation groove (213) via a bearing, a sleeve (216) is threadedly connected to the outer wall of the screw rod (215) and is slidably connected to the inner wall of the installation groove (213), and a handle (217) is arranged at one end of the screw rod (215).

5. A spot welding machine welding head quick positioning mechanism according to claim 1, characterized in that: The front-rear adjustment assembly (22) comprises a connecting seat (221), the rear side of the connecting seat (221) is fixedly connected to a T-shaped block (214) and a sleeve (216), a sliding groove (222) is provided on the front side of the connecting seat (221), a sliding block (223) is slidably connected to the inner wall of the sliding groove (222), a second cylinder (224) is installed on the rear side of the connecting seat (221), and the output end of the second cylinder (224) is connected to the sliding block (223).

6. A spot welding machine welding head quick positioning mechanism according to claim 5, characterized in that: The upper end of the slider (223) is fixedly connected to a lower connecting seat (225), a lower welding head (227) is arranged on the front side of the lower connecting seat (225), and the lower welding head (227) and the upper welding head (14) are located on a vertical line, and infrared receivers (226) are arranged at the corners above the lower connecting seat (225).

7. A spot welding machine welding head quick positioning mechanism according to claim 2, characterized in that: Infrared transmitters (15) are provided at the corners below the upper connecting seat (13), and the infrared transmitters (15) correspond to the infrared receivers (226) one by one.

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