CN202192579U - Spanner for dismantling electrode cap - Google Patents

Abstract

The utility model discloses a wrench for removing an electrode cap, which comprises a clamping plate (1) and a handle (2). The clamping plate (1) is provided with a transverse gap (1b) to divide the clamping plate (1) into an upper clamping plate and the lower clamping plate, the clamping plate (1) is provided with a round hole (1a) passing through the upper and lower clamping plates, and one end of the handle (2) extends horizontally into the transverse notch (1b) of the clamping plate (1) The inner part is hinged with the clamping plate (1) through the shaft (5), and the end of the handle (2) hinged with the clamping plate (1) is provided with anti-slip teeth (2a) distributed in an involute line. The utility model effectively solves the problem of difficult disassembly of cylindrical workpieces with smooth surfaces, has the characteristics of simple structure, convenient operation, and prevents slipping, and will not cause any damage to the electrode cap and the electrode rod.

Description

Electrode cap removal wrench

technical field

The utility model relates to a dismantling wrench for dismantling an electrode cap, which is used to disassemble and separate the electrode cap from the electrode rod in resistance welding.

Background technique

In the body manufacturing industry, resistance spot welding is widely used, and electrode replacement is also a common task. As shown in FIG. 1 , the electrode cap 3 is a bullet-shaped cylinder with a smooth surface, which is interference fit with the electrode rod 4 through taper. In general, to disassemble the electrode cap 3 is to knock the electrode cap 3 left and right with a hammer to make the electrode cap 3 withdraw from the electrode rod 4. This method is very irregular and requires a lot of patience for the employees. And very familiar skills, but also often damage the electrode cap 3 and the electrode rod 4, causing unnecessary waste.

There are also some pipe wrench used to install water pipes for disassembly. Since the pipe wrench is a general tool, it has the disadvantages of bulkiness, large adjustment, large fit clearance, and easy loosening. Although it can well protect the electrode cap and electrode rod, the operation It is very inconvenient.

Utility model content

The purpose of the utility model is to provide an electrode cap removal wrench with simple structure and convenient disassembly and assembly, which can well protect the electrode cap and the electrode rod.

In order to solve the above technical problems, the utility model provides an electrode cap removal wrench, which includes a clamping plate (1) and a handle (2). ) is divided into an upper clamping plate and a lower clamping plate, the clamping plate (1) has a round hole (1a) through the upper and lower clamping plates, and one end of the handle (2) extends horizontally into the clamping plate (1) The horizontal notch (1b) of the handle (1) is hinged together with the clamp (1) through the shaft (5), and the end of the handle (2) hinged with the clamp (1) is provided with involute anti-slip teeth ( 2a).

The thickness of the upper clamp and the lower clamp of the clamp (1) are equal, and the handle is a symmetrical piece, which is convenient for processing and manufacturing.

The anti-slip teeth distributed in involute form the working surface of the wrench. When using it, first put the round hole on the clamp plate on the electrode cap to be disassembled, and then rotate the handle, the gap between the involute working surface and the round hole With the movement of the handle, it will become smaller until the electrode cap is clamped, and then the electrode cap can be removed smoothly with continued force; the anti-slip teeth can prevent the handle from slipping and making abnormal noise during rotation. The utility model effectively solves the problem of difficult disassembly of cylindrical workpieces with smooth surfaces, has the characteristics of simple structure, convenient operation, and prevents slipping, and will not cause any damage to the electrode cap and the electrode rod.

Description of drawings

Fig. 1 is the use state diagram of the present utility model.

Figure 2 Schematic diagram of the electrode cap and electrode rod disassembled.

Detailed ways

Below in conjunction with accompanying drawing and embodiment the utility model is further described:

The electrode cap removal wrench shown in FIG. 1 is composed of a clamping plate 1 , a handle 2 and a shaft 5 . There is a transverse notch 1b on the clamping plate 1, and the transverse notch 1b divides the clamping plate 1 into an upper clamping plate and a lower clamping plate. The clamping plate 1 is also provided with a circular hole 1a passing through the upper and lower clamping plates, and the circular hole 1a of the clamping plate 1 can be set on the electrode cap 3 . It can be seen from FIG. 2 that the electrode cap 3 and the electrode rod 4 are fixed together.

As shown in FIG. 1 , one end of the handle 2 extends horizontally into the transverse notch 1 b of the clamp 1 , and the handle 2 and the clamp 1 are hinged together through a shaft 5 . The hinged end of the handle 2 and the clamping plate 1 is the working end, and the end is provided with anti-slip teeth 2a distributed in involute lines, constituting the involute working surface of the wrench.

Rotate the handle 2 in the direction of the arrow in the figure, the gap between the involute working surface of the handle 2 and the round hole 1a of the clamp 1 will become smaller with the rotation of the handle 2 until the electrode cap 3 is clamped, and then continue to exert force. The electrode cap 3 can be removed smoothly.

As a preference, the thickness of the upper clamping plate and the lower clamping plate of the clamping plate 1 are equal, and the handle is a symmetrical piece.

Claims (2)

1. An electrode cap removal wrench, characterized in that it includes a clamping plate (1) and a handle (2), and the clamping plate (1) has a transverse notch (1b) to divide the clamping plate (1) into upper clamping plate and the lower clamping plate, the clamping plate (1) has a round hole (1a) through the upper and lower clamping plates, and one end of the handle (2) extends horizontally into the transverse gap (1b) of the clamping plate (1) ) and the clamping plate (1) are hinged together through a shaft (5), and one end of the handle (2) hinged with the clamping plate (1) is provided with anti-slip teeth (2a) distributed in an involute line. 2. The wrench for removing the electrode cap according to claim 1, characterized in that: the thickness of the upper clamping plate and the lower clamping plate of the clamping plate (1) are equal, and the handle is a symmetrical piece.

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