Split type electrode holding rod of spot welding robot
The split-design electrode grip and the conical surface of the grip connecting rod are pressed together to solve the problem of frequent and costly replacement of electrode caps, thereby reducing the replacement frequency and procurement costs.
Patent Information
- Application Number
- CN202421636209.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-11
- Publication Date
- 2025-09-16
- Estimated Expiration
- 2034-07-11
AI Technical Summary
In the prior art, the integral structure of the electrode grip and the electrode cap results in frequent replacement of the electrode cap, severe wear, and high replacement costs. The procurement cost is also high when the electrode grip is replaced as a whole.
Adopting split design, the electrode grip and grip connecting rod are connected by conical surface compression fit, the electrode cap and grip connecting rod are installed by conical surface compression fit, and the wearing parts can be replaced separately.
The replacement frequency and procurement cost of the electrode grip are reduced, the maintenance time is shortened, and the spare parts cost is reduced.
Smart Images
Figure CN223338590U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of welding tools, in particular to a split-type electrode grip rod for a spot welding robot. Background Art
[0002] In the production of new energy vehicles and automobile cover parts, spot welding robots are widely used for spot welding operations, such as Figure 2 As shown, the spot welding robot's welding tongs are equipped with an electrode holder 1. An electrode holder connection 4 is located at the end of the holder 1, and an electrode cap 3 is inserted through the electrode holder connection 4. A water channel 2 is provided inside the holder 1 to cool the welding process. The spot welding principle is as follows: the welding tongs drive the electrode cap 3 to apply pressure to the upper and lower surfaces of the plates 5, bringing the two plates 5 into close contact. Then, an electric current is applied, causing the plates 5 to melt at the contact point due to resistance heat, and after cooling, a weld is formed.
[0003] The current electrode grip 1 is a monolithic structure, with the grip connection 4 and the grip body integrally cast. During operation, the electrode cap 3 is a consumable part and requires frequent replacement. This wear and tear wears the grip connection 4. After a certain number of replacements, the wear becomes so severe that the grip 1 leaks when the cap 3 is installed, and the cap 3 also easily falls off. Eventually, the grip deforms and becomes damaged, making it impossible to install the cap 3. The entire grip 3 must be replaced. However, a new grip is cast entirely from hard copper, which is expensive to procure. To reduce production costs, a split-type electrode grip for spot welding robots is being considered. Utility Model Content
[0004] The purpose of the utility model is to provide a split-type electrode gripper for a spot welding robot, thereby reducing the replacement frequency of the electrode gripper and lowering production costs.
[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:
[0006] A split-type electrode gripper for a spot welding robot comprises an electrode gripper, a water channel and a gripper connecting rod; the electrode gripper and the gripper connecting rod are both provided with water channels; and the electrode gripper and the gripper connecting rod are connected together in a plug-in manner.
[0007] The above-mentioned split electrode grip of the spot welding robot is provided with a grip conical groove at the left end of the electrode grip; a conical upper end is provided at the upper end of the grip connecting rod, and a conical lower end is provided at the lower end; the conical upper end cooperates with the grip conical groove to connect the electrode grip and the grip connecting rod together; the conical lower end cooperates with the electrode cap conical groove provided on the electrode cap to connect the grip connecting rod and the electrode cap in a plug-and-play manner.
[0008] The utility model has the following advantages: the conical surface is pressed tightly together
[0009] This new split-type electrode grip features a grip connecting rod that is mounted on the electrode grip body via a conical press fit. The electrode cap is also mounted on the grip connecting rod via a conical press fit. Replacing the electrode cap, which is a consumable part, will first cause wear on the grip connecting rod. In this case, the grip connecting rod can be replaced without replacing the electrode grip body. While the entire grip costs over 2,000 yuan, the grip connecting rod only costs 20 yuan, significantly reducing spare part procurement costs and achieving cost reduction and efficiency improvement. BRIEF DESCRIPTION OF THE DRAWINGS
[0010] Figure 1 This is a schematic diagram of the decomposition of the utility model;
[0011] Figure 2 A schematic diagram of the integral electrode grip showing the electrode cap;
[0012] The reference numerals in the figure represent: 1, electrode grip, 2, water channel, 3, electrode cap, 4, electrode grip connection portion, 5, plate, 6, grip connection rod, 1-1, grip conical groove, 3-1, electrode cap conical groove, 6-1, conical upper end portion, 6-2, conical lower end portion. DETAILED DESCRIPTION
[0013] The present invention will be further described below with reference to the accompanying drawings and embodiments.
[0014] The utility model discloses a split electrode gripper for a spot welding robot. Figure 1 As shown, at the left end of the electrode grip 1, there is a grip conical groove 1-1; at the upper end of the grip connecting rod 6, there is a conical upper end portion 6-1, and at the lower end, there is a conical lower end portion 6-2; an electrode cap conical groove 3-1 is provided on the electrode cap 3; the grip conical groove 1-1, the conical upper end portion 6-1, the conical lower end portion 6-2 and the electrode cap conical groove 3-1 are all provided with tapers; the grip conical groove 1-1 and the conical upper end portion 6-1 are pressed together by a conical surface; the conical lower end portion 6-2 and the electrode cap conical groove 3-1 are pressed together by a conical surface.
[0015] The present invention provides a split-type electrode gripper for a spot welding robot. During spot welding, the electrode gripper 1, gripper connecting rod 6, and electrode cap 3 are plugged together. The electrode gripper 1 is mounted on the spot welding robot's welding tongs, and spot welding is performed under the robot's command. When the consumable electrode cap 3 needs to be replaced, the worn portion of the conical lower end 6-2 is replaced. If the conical lower end 6-2 becomes unusable due to repeated wear and tear, the gripper connecting rod 6 can be replaced without replacing the electrode gripper 1.
[0016] The utility model changes the current situation that the entire electrode grip 1 must be replaced due to wear of the electrode grip connection part 4. Instead, only the grip connection rod 6 needs to be replaced, which shortens the maintenance and replacement time and greatly reduces the purchase cost.
Claims
1. A split-type electrode gripper for a spot welding robot, characterized by: It comprises an electrode grip (1), a water channel (2) and a grip connecting rod (6); the electrode grip (1) and the grip connecting rod (6) are both provided with a water channel (2); and the electrode grip (1) and the grip connecting rod (6) are connected together in a plug-in manner.
2. The split-type electrode gripper for a spot welding robot according to claim 1, characterized in that: A gripping rod conical groove (1-1) is provided at the left end of the electrode gripping rod (1); a conical upper end portion (6-1) is provided at the upper end of the gripping rod connecting rod (6), and a conical lower end portion (6-2) is provided at the lower end; the conical upper end portion (6-1) cooperates with the gripping rod conical groove (1-1) to connect the electrode gripping rod (1) and the gripping rod connecting rod (6) together; the conical lower end portion (6-2) cooperates with the electrode cap conical groove (3-1) provided on the electrode cap (3) to connect the gripping rod connecting rod (6) and the electrode cap (3) together in a plug-in manner.