Sharpening blade of welding electrode and grinding method

A technology for welding electrodes and blades, applied in the field of machinery, can solve the problems of reduced cutting ability and reduced service life of grinding blades, and achieve the effects of reducing friction, ensuring grinding quality, and reducing vibration

Pending Publication Date: 2022-02-18
SHANGHAI INST OF OPTICS & FINE MECHANICS CHINESE ACAD OF SCI +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The key to ensure the effective restoration of the welding electrode is that the waste chips generated by the grinding blade during the cutting process can be effectively removed without causing blockage, resulting in a decrease in the cutting ability of the grinding blade, vibration during the cutting process, and reduced service life

Method used

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  • Sharpening blade of welding electrode and grinding method
  • Sharpening blade of welding electrode and grinding method
  • Sharpening blade of welding electrode and grinding method

Examples

Experimental program
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Effect test

Embodiment 1

[0056] This embodiment discloses a grinding blade that can simultaneously cut and recover the welding surfaces of two welding electrodes that are damaged to different degrees up and down. Through the grinding blade, the welding surfaces of the upper and lower welding electrodes can be cut and trimmed respectively at the same time, thereby grinding an electrode cap with specific geometric characteristics on the welding surface, and also recovering an integral welding electrode with specific geometric characteristics on the welding surface. The dressing of the welding electrode can be repeated as many times as necessary until the welding surface can no longer support dressing due to material loss.

[0057] Such as figure 1 , figure 2 and image 3 As shown, the grinding blade is an integral structure, which is provided with an I-shaped support type main body 1; the support type main body 1 is composed of a cutting part in the middle and mounting parts at both ends, and the cut...

Embodiment 2

[0075] This embodiment can meet the requirement of grinding the upper welding electrode 91 and the lower welding electrode 92 with different welding surface shapes. The structure of the second embodiment is basically the same as that of the first embodiment, except that the first cutting groove 2 and the second cutting groove 3 are no longer arranged symmetrically with respect to the central axis of rotation OO'.

[0076] In this embodiment, the structure of the first cutting groove 2 is similar to that of the second cutting groove 3, but the size and shape of the third cutting edge 34, the fourth cutting edge 35 and the second chisel edge 36 are different from the first cutting edge 34. The first cutting edge 24 , the second cutting edge 25 and the first chisel edge 26 are adjusted to different corresponding shapes and sizes according to the operation requirements.

[0077] The state of repairing the welding surface of the upper welding electrode 91 and the lower welding elec...

Embodiment 3

[0079] The structure of the third embodiment is basically the same as that of the first embodiment, except that a forming groove is provided on the cutting edge and a chip breaker is provided on the cutting surface.

[0080] Please refer to Figure 10 , Figure 11 and Figure 12 , the illustrated grinding blade is provided with a pedestal-type main body, which is composed of a cutting part in the middle and mounting parts at both ends, and has a central axis of rotation OO' along the vertical direction in the center. One side elevation of the cutting portion is provided with a first rake surface 81 and a second chip removal surface 4, and the other side elevation is provided with a second rake surface 82 and a first chip removal surface 5, and the cutting portion includes There are first cutting groove 2 and second cutting groove 3 opposite up and down.

[0081] The first cutting groove 2 includes a first cutting surface 21, a second cutting surface 23 and two third cutting...

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Abstract

A sharpening blade of a welding electrode is provided with a structure symmetrical about a central rotating center shaft and comprises a front blade face, a chip removal face and two vertically opposite cutting grooves. Each cutting groove comprises two cutting surfaces, two third cutting surfaces, two cutting edges and a chisel edge, the two cutting surfaces are provided with relief angles which are inclined inwards, the two third cutting surfaces are provided with inclined angles which are inclined inwards, the two third cutting surfaces are respectively connected with chip discharging grooves, the chisel edge is connected between the two cutting edges, the chisel edge and the rotating center axis intersect at the midpoint of the chisel edge, the two cutting edges and the chisel edge are located at the most protruding positions in the cutting groove and directly cut the welding electrode, and the expanded curves of the cutting edges are symmetrical about the rotating center axis and correspond to the size and shape of a polished welding face. And the sharpening blade rotates clockwise around the rotating center axis for cutting, and each cutting groove is used for sharpening the welding face of the welding electrode extending into the cutting groove into a specific size and shape. The structure parameters of a tool are optimized, the effects of smoothly discharging chips, reducing friction and vibration, improving the cutting quality and prolonging the service life of the tool are achieved, and the grinding requirements of welding faces of various sizes and shapes can be met.

Description

technical field [0001] The invention relates to the repair of resistance welding equipment, in particular to a grinding blade for welding electrodes and a grinding method, belonging to the field of mechanical technology. Background technique [0002] Resistance spot welding is achieved by clamping two or more overlapping workpieces between the opposite upper and lower welding electrodes, applying pressure and passing current while in contact, and using the resistance between the workpieces to generate heat to melt the material. The method by which the artifacts are connected. The resistance spot welding method is generally used for the lamination welding of two or more layers of homogeneous or heterogeneous workpieces, such as aluminum workpieces and aluminum workpieces, steel workpieces and steel workpieces, aluminum workpieces and steel workpieces, etc. This method is currently used in automotive steel In the production process of the car body, it becomes the technologica...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23B27/00B23K11/30
CPCB23B27/00B23K11/3063
Inventor 王艳俊李铭锋杨上陆
Owner SHANGHAI INST OF OPTICS & FINE MECHANICS CHINESE ACAD OF SCI
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