Anti-scald projection welding machine

Abstract

The utility model discloses an anti-scald projection welding machine which comprises a clamping mechanism and a projection welding machine body installed on one side of the clamping mechanism. A reversing mechanism and a servo motor installed at the bottom of the reversing mechanism are arranged below the clamping mechanism. The clamping mechanism comprises a supporting column, one side of the top of the supporting column is fixedly connected with a support, and one side of the support is fixedly connected with an air cylinder; wherein the output end of the air cylinder penetrates through the support and is fixedly connected with a first connecting rod, and the two ends of the first connecting rod are rotationally connected with second connecting rods; wherein the end, away from the first connecting rod, of the second connecting rod is rotationally connected with a third connecting rod, one end of the third connecting rod is rotationally connected with the support, workpieces with different thicknesses can be clamped by arranging the clamping mechanism, and an operator is prevented from being scalded when the workpieces are welded; and by arranging the reversing mechanism, the workpieces on the surface of the conveying belt can be conveyed to the position near the projection welding machine body, and welding of the workpieces is facilitated.

Description

Technical Field

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

[0002] The projection welding machine adopts pneumatic pressurization and bearing guidance. 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 performance. It is widely used in multi-point projection welding and spot welding of mechanical parts such as auto parts.

[0003] Publication No. CN214721391U discloses an automatic leakage and error prevention device for a projection welding machine. By adding an error prevention panel and setting the error prevention panel to be linked with the projection welding machine, when the welding head falls, the error prevention panel rotates and closes accordingly. After welding is completed, the welding head rises and the error prevention panel rotates and opens accordingly. At this time, the worker can put the welded finished parts into the finished product box and place the next reinforcement to be welded on the projection welding machine. When welding again, the error prevention panel is closed again. This reciprocating cycle can prevent the spatter generated during welding from falling into the finished product box and the unwelded parts from mixing into the finished product box, thereby ensuring the quality of the finished parts when delivered. However, the patent still has the following problems in actual use:

[0004] Although the automatic leakage and error prevention device for the projection welding machine is equipped with an error prevention panel and the error prevention panel is linked to the projection welding machine, when the welding head falls, the error prevention panel rotates and closes, and the welding is completed. However, since the workpiece is manually clamped for welding, it is easy for people to be scalded during the welding process due to the thermal conductivity of the workpiece, thereby reducing the safety of the device.

[0005] A projection welding machine with an anti-scalding function is proposed to solve the above-mentioned problems. Utility Model Content

[0006] The purpose of the utility model is to provide a projection welding machine with a scalding prevention function, so as to solve the problem raised in the above-mentioned background technology that an error prevention panel is currently added and the error prevention panel is linked with the projection welding machine. When the welding head falls, the error prevention panel rotates and closes accordingly, and the welding is completed. However, since the workpiece is manually clamped for welding, it is easy for personnel to be scalded during the welding process due to the thermal conductivity of the workpiece, thereby reducing the safety of the device.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a projection welding machine for preventing burns, comprising a clamping mechanism, and a projection welding machine body installed on one side of the clamping mechanism;

[0008] A reversing mechanism and a servo motor installed at the bottom of the reversing mechanism are arranged below the clamping mechanism;

[0009] Also includes:

[0010] The clamping mechanism comprises a support column, one side of the top of the support column is fixedly connected to a bracket, and one side of the bracket is fixedly connected to a cylinder;

[0011] The output end of the cylinder passes through the bracket and is fixedly connected to a first connecting rod, and both ends of the first connecting rod are rotatably connected to a second connecting rod;

[0012] Among them, one end of the second connecting rod away from the first connecting rod is rotatably connected to the third connecting rod, and one end of the third connecting rod is rotatably connected to the bracket.

[0013] Preferably, the other end of the third connecting rod is fixedly connected to a rubber block, one side of the rubber block is fitted and connected to a workpiece, and one end of the workpiece away from the rubber block is fitted and connected to a projection welding machine body.

[0014] Preferably, one end of the projection welding machine body is fixedly connected to a pillar, the bottom end of the pillar is fixedly connected to a base, and a side of the base close to the pillar is fittedly connected to a collection box.

[0015] Preferably, the reversing mechanism comprises a support platform, the bottom of the support platform is fixedly connected to the base, and one side of the bottom of the support platform is fixedly connected to the servo motor.

[0016] Preferably, the output end of the servo motor passes through the support platform and is fixedly connected to a turntable, and one end of the turntable away from the servo motor is rotatably connected to the support platform.

[0017] Preferably, a limiting column is fixedly connected to one side of the turntable, a groove wheel is fittedly connected to the outer side of the limiting column, the bottom end of the groove wheel is rotatably connected to the support platform, and the top end of the groove wheel passes through the support platform and is fixedly connected to the support column.

[0018] Preferably, a conveyor belt is provided on one side of the support platform, and the surface of the conveyor belt is in close contact with the workpiece.

[0019] Compared with the prior art, the utility model has the following beneficial effects: the anti-scalding projection welding machine can clamp workpieces of different thicknesses by setting a clamping mechanism to prevent operators from being scalded during welding of the workpieces, and can transport the workpieces on the surface of the conveyor belt to the vicinity of the projection welding machine body by setting a reversing mechanism, so as to facilitate the welding of the workpieces. The specific contents are as follows:

[0020] 1. By setting up a clamping mechanism, workpieces of different thicknesses can be clamped to prevent operators from being burned when welding. The cylinder drives the first connecting rod to move left and right in the horizontal direction, thereby driving the second connecting rod to rotate. The bracket limits the third connecting rod, so that the second connecting rod drives the third connecting rod to rotate around the bracket, so that the rubber block can clamp and limit workpieces of different thicknesses;

[0021] 2. By setting up a reversing mechanism, the workpiece on the surface of the conveyor belt can be transported to the vicinity of the projection welding machine body, which is convenient for welding of the workpiece. The turntable and the limit column are driven to rotate by the servo motor. By utilizing the cooperation between the limit column and the groove wheel, the support column can be rotated only 90 degrees each time to transport the workpiece to the designated position. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0023] Figure 2 For this utility model Figure 1 An enlarged structural diagram of the middle clamping mechanism;

[0024] Figure 3 For this utility model Figure 1 An enlarged structural diagram of the middle reversing mechanism;

[0025] Figure 4 For this utility model Figure 3 Schematic diagram of the structure of the middle groove wheel from top view.

[0026] In the figure: 1. Clamping mechanism; 101. Support column; 102. Bracket; 103. Cylinder; 104. First connecting rod; 105. Second connecting rod; 106. Third connecting rod; 107. Rubber block; 108. Workpiece; 109. Projection welding machine body; 110. Support column; 111. Base; 112. Collection box; 2. Reversing mechanism; 201. Support table; 202. Servo motor; 203. Turntable; 204. Limiting column; 205. Groove wheel; 206. Conveyor belt. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the implementation regulations described are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0028] See also Figure 1-4 The utility model provides a technical solution: a projection welding machine for preventing scalding, comprising a clamping mechanism 1, and a projection welding machine body 109 installed on one side of the clamping mechanism 1; a reversing mechanism 2 is arranged below the clamping mechanism 1, and a servo motor 202 is installed at the bottom of the reversing mechanism 2; the clamping mechanism 1 comprises a support column 101, a bracket 102 is fixedly connected to one side of the top of the support column 101, and a cylinder 103 is fixedly connected to one side of the bracket 102, and the cylinder 103 is arranged to drive the first connecting rod 104 to move left and right in the horizontal direction;

[0029] The output end of the cylinder 103 passes through the bracket 102 and is fixedly connected to the first connecting rod 104. Both ends of the first connecting rod 104 are rotatably connected to the second connecting rod 105. The end of the second connecting rod 105 away from the first connecting rod 104 is rotatably connected to the third connecting rod 106. One end of the third connecting rod 106 is rotatably connected to the bracket 102, and the third connecting rod 106 is driven to rotate around the bracket 10 through the second connecting rod 105.

[0030] The other end of the third connecting rod 106 is fixedly connected to a rubber block 107, one side of the rubber block 107 is fitted with a workpiece 108, one end of the workpiece 108 away from the rubber block 107 is fitted with a projection welding machine body 109, one end of the projection welding machine body 109 is fixedly connected to a support 110, the bottom end of the support 110 is fixedly connected to a base 111, and a side of the base 111 close to the support 110 is fitted with a collection box 112, and the collection box 112 is provided to facilitate the storage of workpieces;

[0031] The reversing mechanism 2 includes a support table 201, the bottom of the support table 201 is fixedly connected to the base 111, one side of the bottom of the support table 201 is fixedly connected to the servo motor 202, and a threaded connecting rod is connected between the support table 201 and the base 111. When it is necessary to clamp workpieces 108 of different lengths, the distance between the support table 201 and the projection welding machine body 109 is adjusted;

[0032] The output end of the servo motor 202 passes through the support platform 201 and is fixedly connected with a turntable 203. One end of the turntable 203 away from the servo motor 202 is rotatably connected to the support platform 201. One side of the turntable 203 is fixedly connected to a limiting column 204. The outer side of the limiting column 204 is fitted with a groove wheel 205. The bottom end of the groove wheel 205 is rotatably connected to the support platform 201. The top end of the groove wheel 205 passes through the support platform 201 and is fixedly connected to the support column 101. The servo motor 202 is started to drive the turntable 203 and the limiting column 204 to rotate. By using the cooperation between the limiting column 204 and the groove wheel 205, the support column 201 can be rotated only 90 degrees each time.

[0033] A conveyor belt 206 is arranged on one side of the support platform 201, and the surface of the conveyor belt 206 is in close contact with the workpiece 108. A support frame is arranged on the outer side of the conveyor belt 206, and the conveyor belt and the support frame are rotatably connected. The bottom of the support frame is fixedly connected to the base 111, and a sensor is arranged on the side of the support frame close to the support platform 201. When the workpiece is transported to the specified position, the sensor receives a signal to control the conveyor belt 206 to stop rotating, so as to facilitate the clamping of the workpiece 108 by the clamping mechanism 1.

[0034] Working principle: Before using this anti-scalding projection welding machine, you need to check the overall condition of the device to make sure it can work normally. Figure 1 - Figure 4As shown, firstly, the workpiece 108 is placed on the surface of the conveyor belt 206, and then transported to the vicinity of the rubber block 107, and the cylinder 103 is started to drive the first connecting rod 104 to move in the horizontal direction, thereby driving the second connecting rod 105 to rotate, and the bracket 102 is used to limit the third connecting rod 106, so that the second connecting rod 105 drives the third connecting rod 106 to rotate around the bracket 102, so that the rubber block 107 can clamp and limit the workpieces of different thicknesses;

[0035] Secondly, start the servo motor 202 to drive the turntable 203 and the limit column 204 to rotate. By utilizing the cooperation between the limit column 204 and the groove wheel 205, the support column 201 can be rotated only 90 degrees each time. After two rotations, the workpiece 108 can be transported to the vicinity of the projection welding machine body 109 for welding. After welding is completed, release the third connecting rod 106 to allow the workpiece 108 to fall into the collection box 112 for storage.

[0036] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art may still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A projection welding machine for preventing burns, comprising a clamping mechanism (1), and a projection welding machine body (109) mounted on one side of the clamping mechanism (1); A reversing mechanism (2) and a servo motor (202) installed at the bottom of the reversing mechanism (2) are provided below the clamping mechanism (1); It is characterized in that Also includes: The clamping mechanism (1) comprises a support column (101), one side of the top of the support column (101) is fixedly connected to a bracket (102), and one side of the bracket (102) is fixedly connected to a cylinder (103); The output end of the cylinder (103) passes through the bracket (102) and is fixedly connected to a first connecting rod (104), and both ends of the first connecting rod (104) are rotatably connected to a second connecting rod (105); One end of the second connecting rod (105) away from the first connecting rod (104) is rotatably connected to the third connecting rod (106), and one end of the third connecting rod (106) is rotatably connected to the bracket (102).

2. The anti-scalding projection welding machine according to claim 1, characterized in that: The other end of the third connecting rod (106) is fixedly connected to a rubber block (107), one side of the rubber block (107) is fitted and connected to a workpiece (108), and one end of the workpiece (108) away from the rubber block (107) is fitted and connected to a projection welding machine body (109).

3. The anti-scalding projection welding machine according to claim 2, characterized in that: One end of the projection welding machine body (109) is fixedly connected to a support (110), the bottom end of the support (110) is fixedly connected to a base (111), and a side of the base (111) close to the support (110) is fitted with a collection box (112).

4. The anti-scalding projection welding machine according to claim 1, characterized in that: The reversing mechanism (2) comprises a support platform (201), the bottom of the support platform (201) is fixedly connected to the base (111), and one side of the bottom of the support platform (201) is fixedly connected to the servo motor (202).

5. The anti-scalding projection welding machine according to claim 4, characterized in that: The output end of the servo motor (202) passes through the support platform (201) and is fixedly connected to a turntable (203); one end of the turntable (203) away from the servo motor (202) is rotatably connected to the support platform (201).

6. The anti-scalding projection welding machine according to claim 5, characterized in that: A limiting column (204) is fixedly connected to one side of the rotating disk (203); a groove wheel (205) is fittedly connected to the outer side of the limiting column (204); the bottom end of the groove wheel (205) is rotatably connected to the support platform (201); and the top end of the groove wheel (205) passes through the support platform (201) and is fixedly connected to the support column (101).

7. The anti-scalding projection welding machine according to claim 6, characterized in that: A conveyor belt (206) is provided on one side of the support platform (201), and a surface of the conveyor belt (206) is in close contact with the workpiece (108).

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