Semi-automatic grinding device for projection welding electrode

Abstract

The utility model discloses a semi-automatic grinding device for a projection welding electrode, which belongs to the technical field of electrode grinding and comprises a working table, a support is arranged above the working table, a first motor component and a holding rod component are arranged on the support, and a second motor component and a sensor component are arranged below the working table. An electrode tip guide sleeve and a coping sheet are further arranged, a guide rod is arranged between the first motor assembly and the holding rod assembly, and the inductor assembly is arranged on one side of the lower end of the guide rod; the first motor assembly and the guide rod are linked with the holding rod assembly; belongs to the technical field of electrode coping, and is small in appearance size, small in occupied space, capable of being placed nearby a projection welding machine, capable of conducting coping at any time, and convenient and fast to operate. The projection welding electrode coping device is simple in composition material and low in cost, saves cost for enterprises, facilitates operation of workers, and improves working efficiency.

Description

Technical Field

[0001] The utility model relates to the technical field of electrode grinding, in particular to a semi-automatic grinding device for projection welding electrodes. Background Art

[0002] In the manufacturing process of automotive welded parts, projection welding is a common process. The upper and lower electrodes of projection welding are generally made of chromium-zirconium-copper. The material of chromium-zirconium-copper is relatively soft, and a lot of heat and slag splashing will be generated during the welding process, causing pits on the electrode surface or slag adhesion. If the slag is not cleaned in time and the surface finish of the electrode is not ensured, the surface of the welded parts will be rough, and the welding quality will be reduced, affecting customer assembly and causing customer complaints. If the electrode with a rough surface is directly discarded and replaced with a new electrode, it will undoubtedly cause huge waste and increase the production cost of the enterprise.

[0003] In order to solve the above problems, there are currently two methods: one is to manually use a file to grind the electrode surface. This method requires high manual skills and is likely to make the electrode surface tilted and uneven after rubbing, affecting the welding strength of the parts; the other is to remove the used electrode and use lathe processing to clean the attachments on the electrode surface. This method will greatly increase costs and time regardless of outsourcing lathe processing or increasing lathe processing equipment and lathe processing personnel. Summary of the invention

[0004] The purpose of the utility model is to provide a semi-automatic grinding device for projection welding electrodes to solve the above problems.

[0005] In order to achieve the above-mentioned purpose, the technical solution adopted by the utility model is as follows: a semi-automatic grinder for projection welding electrodes, comprising a workbench, a bracket is arranged above the workbench, a first motor assembly is arranged at one end of the bracket, a gripping rod assembly is arranged at the other end, a second motor assembly is arranged at one end below the workbench, and a sensor assembly is arranged at the other end; an electrode head guide sleeve and a grinding sheet are arranged between the first motor assembly and the second motor assembly, a guide rod is arranged between the first motor assembly and the gripping rod assembly, a third guide sleeve is arranged on the guide rod, the upper end of the guide rod is connected to the bracket, and the lower end passes through the workbench, and the sensor assembly is arranged on one side of the lower end of the guide rod; the first motor assembly and the guide rod are linked with the gripping rod assembly under the drive of the bracket.

[0006] When the grinding device of the utility model is adopted, the gripping rod assembly is pressed manually, the sensor senses the guide rod, and transmits the signal to the two motor assemblies, the motor starts to run, drives the grinding disc to rotate, and realizes the electrode grinding.

[0007] As a preferred technical solution, the first motor assembly includes a first motor, an output end of the first motor is connected to a first motor shaft, and the other end of the first motor shaft is connected to a tapered rubber.

[0008] As a preferred technical solution, the second motor assembly includes a second motor, an output end of the second motor is connected to a second motor shaft, and the second motor shaft is connected to the grinding plate.

[0009] As a further preferred technical solution, the second motor shaft is connected to the grinding plate via a gasket and a nut.

[0010] As a preferred technical solution, the grip assembly includes a grip, a guide shaft is arranged inside the grip, a spring is arranged on the outer periphery of the lower section of the guide shaft, and the spring is located between the lower end of the grip and the workbench.

[0011] As a further preferred technical solution, a first guide sleeve and a second guide sleeve are arranged between the inside of the grip rod and the guide shaft.

[0012] As a preferred technical solution, the sensor assembly includes a sensor and a sensor mounting bracket.

[0013] Compared with the prior art, the advantages of the utility model are: the grinder of the utility model has a small size and occupies little space, can be placed next to the projection welding machine, can be ground at any time, and is easy and fast to operate; and the projection welding electrode grinder is composed of simple materials and low cost, which not only saves costs for the enterprise, but also facilitates the operation of workers and improves work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a structural diagram of the grinding device of the embodiment of the utility model when it is in operation;

[0015] Figure 2 This is a structural diagram of the grinding device of the embodiment of the utility model when it is not working;

[0016] Figure 3 This is a circuit control diagram of an embodiment of the utility model.

[0017] In the figure: 1. workbench; 2. first motor; 3. first motor shaft; 4. rubber; 5. electrode head guide sleeve; 6. projection welding electrode; 7. grinding sheet; 8. bracket; 9. second motor; 10. second motor shaft; 11. gasket; 12. nut; 13. guide rod; 14. third guide sleeve; 15. grip rod; 16. first guide sleeve; 17. second guide sleeve; 18. guide shaft; 19; spring; 20. sensor; 21. sensor mounting bracket; 22. transformer; 23. controller; 24. driver; 25. solid-state relay. DETAILED DESCRIPTION

[0018] The utility model will be further described below in conjunction with the accompanying drawings. Example

[0019] See also Figure 1 and Figure 2 A semi-automatic grinding device for projection welding electrodes comprises a workbench 1, a bracket 8 is arranged above the workbench 1, a first motor assembly is arranged at one end of the bracket 8, a gripping rod assembly is arranged at the other end, a second motor assembly is arranged at one end below the workbench 1, and a sensor assembly is arranged at the other end; an electrode head guide sleeve 5 and a grinding sheet 7 are arranged between the first motor assembly and the second motor assembly, a guide rod 13 is arranged between the first motor assembly and the gripping rod assembly, a third guide sleeve 14 is arranged on the guide rod 13, the upper end of the guide rod 13 is connected to the bracket 8, and the lower end passes through the workbench 1, and the sensor assembly is arranged on one side of the lower end of the guide rod 13; the first motor assembly and the guide rod 13 are linked with the gripping rod assembly under the drive of the bracket 8;

[0020] In this embodiment, the first motor assembly includes a first motor 2, the output end of the first motor 2 is connected to a first motor shaft 3, and the other end of the first motor shaft 3 is connected to a tapered rubber 4;

[0021] The second motor assembly includes a second motor 9, the output end of the second motor 9 is connected to a second motor shaft 10, and the second motor shaft 10 is connected to the grinding plate 7 through a gasket 11 and a nut 12;

[0022] The grip assembly includes a grip 15, a guide shaft 18 is arranged inside the grip 15, a spring 19 is arranged on the outer periphery of the lower section of the guide shaft 18, the spring 19 is located between the lower end of the grip 15 and the workbench 1, and a first guide sleeve 16 and a second guide sleeve 17 are arranged between the grip 15 and the guide shaft;

[0023] The sensor assembly includes a sensor 20 and a sensor mounting bracket 21;

[0024] When working, Figure 1 As shown, the projection welding electrode 6 to be ground is placed in the electrode head guide sleeve 5, and the working surface of the projection welding electrode 6 contacts the grinding sheet 7; during grinding, the hand holds the gripping rod 15 and presses it downward, driving the first motor assembly to move downward, and the conical rubber 4 presses the projection welding electrode 6; at the same time, the guide rod 13 moves downward, and when the guide rod 13 moves to the position of the sensor 20, the sensor 20 senses the guide rod 13, and transmits the signal to the first electrode 2 and the second motor 9; the first motor 2 starts to work and drives the projection welding electrode 6 to rotate, and the second motor 9 starts to work and drives the grinding sheet 7 to rotate, so that the welding slag attachment on the working surface of the projection welding electrode 6 is ground clean and smooth;

[0025] See also Figure 2 After the grinding is completed, the hand releases the grip 15, the spring 19 rebounds and resets, the grip 15 moves upward, driving the first motor assembly and the guide rod 13 upward; the guide rod 13 leaves the sensing range of the sensor 20, the sensor 20 transmits the signal to the first motor 2 and the second motor 9, the two motors stop working, the grinding plate 7 and the projection welding electrode 6 no longer rotate, and the projection welding electrode semi-automatic grinder stops working; the worker removes the electrode, and the electrode grinding is completed.

[0026] See also Figure 3 The adjustment and control method of the first motor 2 and the second motor 9 is the prior art, and includes a transformer 22, a controller 23, a driver 24, a solid-state relay 25, and the like.

[0027] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A semi-automatic grinding device for projection welding electrodes, characterized in that: It includes a workbench, a bracket is arranged above the workbench, a first motor assembly is arranged at one end of the bracket, a gripping rod assembly is arranged at the other end, a second motor assembly is arranged at one end below the workbench, and an inductor assembly is arranged at the other end; an electrode head guide sleeve and a grinding sheet are arranged between the first motor assembly and the second motor assembly, a guide rod is arranged between the first motor assembly and the gripping rod assembly, a third guide sleeve is arranged on the guide rod, the upper end of the guide rod is connected to the bracket, and the lower end passes through the workbench, and the inductor assembly is arranged on one side of the lower end of the guide rod; the first motor assembly and the guide rod are linked with the gripping rod assembly under the drive of the bracket.

2. A semi-automatic grinding device for projection welding electrodes according to claim 1, characterized in that: The first motor assembly includes a first motor, an output end of the first motor is connected to a first motor shaft, and the other end of the first motor shaft is connected to a tapered rubber.

3. A semi-automatic grinding device for projection welding electrodes according to claim 1, characterized in that: The second motor assembly includes a second motor, an output end of the second motor is connected to a second motor shaft, and the second motor shaft is connected to the grinding plate.

4. A semi-automatic grinding device for projection welding electrodes according to claim 3, characterized in that: The second motor shaft is connected to the grinding plate via a washer and a nut.

5. The semi-automatic grinding device for projection welding electrodes according to claim 1, characterized in that: The grip assembly comprises a grip, a guide shaft is arranged inside the grip, a spring is arranged on the outer periphery of the lower section of the guide shaft, and the spring is located between the lower end of the grip and the workbench.

6. A semi-automatic grinding device for projection welding electrodes according to claim 5, characterized in that: A first guide sleeve and a second guide sleeve are arranged between the interior of the grip rod and the guide shaft.

7. A semi-automatic grinding device for projection welding electrodes according to claim 1, characterized in that: The sensor assembly includes a sensor and a sensor mounting bracket.

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