Self-adaptive compensation mechanism for electrode tip of indirect welding gun

Abstract

The utility model belongs to the technical field of automobile production, and particularly relates to an indirect welding gun electrode tip self-adaptive compensation mechanism which comprises a base, a spring assembly, an insulation spacer, a connecting plate, a supporting block, a guide sleeve, a sliding seat, a sliding block, a connecting arm and an electrode tip. One end of the sliding block is connected with one end of the connecting shaft, the other end of the connecting shaft is connected with a connecting rod of the spring assembly, the connecting shaft penetrates through the guide sleeve and is in sliding fit with the guide sleeve, the guide sleeve is fixed to the supporting block, and the supporting block is fixed to the base. A shell of the spring assembly is connected with the sliding seat through the connecting plate, the lower end of the connecting arm is fixed to the upper portion of the sliding block through the insulating spacer, and the electrode tip is installed on the top of the connecting arm. By means of the device, puppet welding efficiency can be improved, a large amount of welding work can be completed at a higher speed, and welding is more efficient compared with traditional manual welding.

Description

Technical Field

[0001] The utility model belongs to the technical field of automobile production, and in particular relates to an adaptive compensation mechanism for an electrode head of an indirect welding gun. Background Art

[0002] In the automobile body-in-white welding production line, you will often see the puppet welding process. The puppet welding process is an automated welding process that uses robots or other editable equipment to complete the welding operation; the more common arrangement is installed on the base of the fixture, and evenly distributed according to the welding position of the body-in-white panel. The number can be 1 or more welding guns. In the early stage of design planning, the welding point position and the number of puppet welding guns are locked, and the cylinder, sensor and other equipment on the fixture are combined to complete the welding. Its process flow is to manually put the panel on the fixture, the sensor detects the panel, the cylinder clamps it, and the welding requirements are met. The puppet welding process is completed through a pre-set program.

[0003] In the process of puppet welding process execution, the following problems are often encountered:

[0004] 1. Welding quality problems: The weld quality is unqualified, such as the weld is too narrow, the weld is not full, there are pores, inclusions, etc. These problems may be caused by improper welding parameter settings, problems with welding materials, or inadequate operating techniques.

[0005] 2. Plate deformation problem: Thermal deformation caused by heating of the plate during welding is a common problem. Thermal deformation of the plate may cause dimensional deviation, mismatch, distortion and other problems of welded parts, affecting welding quality and structural strength.

[0006] 3. Welding slag problem: During the welding process, if the workers do not clean up the initial slag (welding slag) in time, the welding quality will be reduced. The residual welding slag in the weld will form defects such as pores and slag inclusions, and have an adverse effect on the strength and sealing of the weld.

[0007] 4. Welding deformation problem: During the welding process, the temperature gradient and deformation caused by heat and cooling may cause problems such as warping, twisting, and bending of the welded parts. These deformations will affect the welding quality and dimensional accuracy, and need to be solved by selecting a suitable welding sequence and process control.

[0008] The emergence of the above problems is related to factors such as welding process parameters, material selection, welding equipment status, welding operation technology, etc., and systematic analysis and reasonable adjustments are required according to specific circumstances. Utility Model Content

[0009] The utility model aims to provide an adaptive compensation mechanism for an electrode head of an indirect welding gun to solve the problems existing in the background technology.

[0010] In order to achieve the above-mentioned purpose, the utility model provides the following technical solution: an adaptive compensation mechanism for an electrode head of an indirect welding gun.

[0011] An adaptive compensation mechanism for an electrode tip of an indirect welding gun comprises a base, a spring assembly, an insulating gasket, a connecting plate, a support block, a guide sleeve, a slide seat, a slider, a connecting arm and an electrode tip, wherein the slide seat is fixed on the base, the slider is slidably connected to the slide seat, one end of the slider is connected to one end of a connecting shaft, the other end of the connecting shaft is connected to a connecting rod of the spring assembly, the connecting shaft passes through the guide sleeve and slidably cooperates with the guide sleeve, the support block is fixed on the base, the housing of the spring assembly is connected to the slide seat through the connecting plate, the lower end of the connecting arm is fixed to the upper part of the slider through the insulating gasket, and the electrode tip is mounted on the top of the connecting arm.

[0012] Preferably, the compensation mechanism comprises multiple sets, which are installed in parallel on the base.

[0013] Preferably, a cable mounting plate is installed on the side of the connecting arm.

[0014] Preferably, a quick connector is provided at the end of the slider, and is connected to the connecting shaft via the quick connector.

[0015] The beneficial effects of the utility model are as follows: compared with the existing manufacturing technology, the present invention can improve the efficiency of puppet welding, can complete a large number of welding work at a faster speed, and is more efficient than traditional manual welding. The failure rate is lower, it can work continuously without rest, thereby improving production efficiency; it can improve welding accuracy, can accurately control the position of the welding gun, and ensure the accuracy and stability of welding. It can achieve accurate welding paths; it can improve welding quality, and can reduce the influence of welding gun factors on welding quality. At the same time, it can adapt to the position of the plate, can fit the plate at zero distance, and ensure the quality and strength of the weld; it can improve the consistency of welding, and puppet welding can maintain the consistency of welding quality through the adaptive mechanism. Whether it is repeated welding under the same conditions or welding of different workpieces, it can maintain consistent welding results. In short, the indirect welding gun electrode head adaptive compensation mechanism has the advantages of high efficiency, precision, quality control, safety and consistency, etc., which can improve efficiency and quality in production, reduce the cost of manpower repairing plates and improve welding quality and efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is the front view of the institution;

[0017] Figure 2 is a side view of the mechanism;

[0018] Figure 3This is a top view of the organization;

[0019] Figure 4 It is the axonometric drawing of this organization;

[0020] Figure 5 It is a partial enlarged view of this organization;

[0021] Figure 6 It is the application diagram of this organization. DETAILED DESCRIPTION

[0022] The specific implementation of the utility model is described in detail below with reference to the accompanying drawings and preferred embodiments.

[0023] like Figure 1-6 As shown, an adaptive compensation mechanism for an electrode head of an indirect welding gun,

[0024] An indirect welding gun electrode head adaptive compensation mechanism includes a base 1, a spring assembly 2, an insulating gasket 3, a connecting plate 4, a support block 5, a guide sleeve 6, a slide seat 7, a slider 8, a connecting arm 9 and an electrode head 10. The slide seat is fixed on the base, the slider is slidably connected to the slide seat, one end of the slider is connected to one end of a connecting shaft 11, and the other end of the connecting shaft is connected to the connecting rod of the spring assembly. The spring assembly is an outsourced part with a connecting rod and a spring inside. The connecting shaft passes through the guide sleeve and slides with it. The guide sleeve is fixed on the support block, and the support block is fixed on the base. The shell of the spring assembly is connected to the slide seat through the connecting plate, the lower end of the connecting arm is fixed to the upper part of the slider through the insulating gasket, and the electrode head is installed on the top of the connecting arm. The spring assembly can make the connecting arm overcome the resistance of the spring and move, so that the electrode head can be zero-distance attached to the plate to ensure the welding quality.

[0025] like Figure 1-3 As shown, the compensation mechanism is a plurality of sets, which are installed in parallel on the base.

[0026] In order to facilitate fixing the cable on the connecting arm, a cable mounting plate 12 is installed on the side of the connecting arm.

[0027] In order to quickly install the connecting shaft, a quick connector is provided at the end of the sliding block, and is connected to the connecting shaft via the quick connector.

[0028] like Figure 6As shown, the working process is: assemble the device according to the above technical solution, assemble it on the fixture base plate through the connecting parts, complement the fixture, use the fixture to position the body panel, design and arrange the mechanism where the panel is to be welded, use the fixture base coordinate system to calibrate, detect and adjust the fixture and the mechanism, the upper and lower parts of the electrode head of the mechanism can adjust the upper and lower distances through insulating gaskets, and the left and right can be adjusted by the adaptive mechanism. After the calibration of the fixture and the mechanism according to the panel coordinates is completed, the repeatability of each repeated welding is high, and it can be put into use after debugging.

[0029] The working principle is as follows: after the plate is placed on the fixture, the detection switch on the fixture detects that the plate is in place, the cylinder clamps, fixes the plate plane on the fixture, and the surface of the plate is attached to the electrode head. The welding control cabinet is controlled by the electronic control program to send the welding program, and this mechanism performs welding. During the welding process, the end face of the electrode head and the plane of the plate are adaptively adjusted to ensure the welding quality. After the welding is completed, the welding control cabinet feeds back a completion signal, the cylinder opens, and the parts are picked up manually or by a robot for the next cycle.

[0030] It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the utility model, and these improvements and modifications should also be regarded as the protection scope of the utility model.

Claims

1. An adaptive compensation mechanism for an indirect welding gun electrode tip, characterized in that : It includes a base, a spring assembly, an insulating gasket, a connecting plate, a support block, a guide sleeve, a slide seat, a slider, a connecting arm and an electrode head, the slide seat is fixed on the base, the slider is slidably connected to the slide seat, one end of the slider is connected to one end of the connecting shaft, the other end of the connecting shaft is connected to the connecting rod of the spring assembly, the connecting shaft passes through the guide sleeve and slides with it, the guide sleeve is fixed on the support block, the support block is fixed on the base, the shell of the spring assembly is connected to the slide seat through the connecting plate, the lower end of the connecting arm is fixed to the upper part of the slider through the insulating gasket, and the electrode head is installed on the top of the connecting arm.

2. The indirect welding gun electrode tip adaptive compensation mechanism according to claim 1, characterized in that The compensation mechanism comprises multiple sets, which are installed in parallel on the base.

3. The indirect welding gun electrode tip adaptive compensation mechanism according to claim 1, characterized in that : A cable mounting plate is installed on the side of the connecting arm.

4. The indirect welding gun electrode tip adaptive compensation mechanism according to claim 1, characterized in that : A quick connector is provided at the end of the slider, which is connected to the connecting shaft through the quick connector.

Images