A clamping method and device for processing a terminal hole of an explosion-proof motor junction box seat

Abstract

The invention discloses a clamping method used when binding post holes are machined in explosion-proof motor terminal box bases and a product machined through a special device. The clamping method and the product aim at enhancing the safety performance when an explosion-proof motor is used. In the machining process, a horizontal leaning and blocking device is arranged on the horizontal clamping plane of a clamping platform of a drilling machine, and a horizontal supporting and pushing device is arranged on the vertical plane of the clamping platform of the drilling machine; or, the horizontal leaning and blocking device and a position keeping device are arranged on the horizontal clamping face of the clamping platform; and the process for conducting horizontal clamping and vertical binding post hole machining and tapping on explosion-proof motor terminal box bases is achieved, the clamping method can also be used for numerical control automatic production, and the product is mainly used for important parts, namely, explosion-proof wiring box bases, carried by explosion-proof motors used in the petrochemical engineering industry or flammable and combustible places.

Description

technical field [0001] The invention relates to the technical field of explosion-proof motor manufacturing, in particular to important components of the explosion-proof motor. Background technique [0002] Explosion-proof motors are motors used in explosive and explosive places, and the quality of their main components is very important. At present, there are many enterprises producing explosion-proof motors in my country, and the demand is large, and they have also entered the international track. When it comes to the key components of the product, if the quality is not firmly grasped, there will be potential safety hazards during use. Especially the terminal hole at the bottom of the explosion-proof junction box seat, where there are directly exposed high-voltage electric piles during use, and there are still vibrations when some equipment is used. If the thread quality of the terminal hole does not meet the requirements, it is easy to cause the terminal (electric pile) t...

AI Technical Summary

Problems solved by technology

In addition, as mentioned above, a large amount of iron filings and cast iron powder leak into the annual ring thread groove inside the chuck, which directly affects the normal adjustment function of the gear mechanism inside the chuck; secondly, the three-jaw chuck is a lathe fixture rather than a drilling machine fixture. If the workpiece is clamped in the center, it only has the function of aligning the center of the workpiece when drilling the workpiece; if it is used in the drilling machine to clamp the workpiece, it must be consistent with the lathe and only allowed to align with the center of the workpiece and the material must be steel, that is, when drilling There will not be a large amount of cast iron powder leaking into the chuck like cast iron; however, the three-jaw chuck is used to clamp the explosion-proof junction box seat and drill the hole of the terminal post. Let’s take a look. The purpose is to save time and effort to improve production efficiency. It cannot determine whether the tightness is appropriate. In addition to the many defects pointed out above, the operator often happens that the explosion-proof junction box seat is suddenly twisted when drilling holes, that is, it is brought up by the drill bit to rotate, resulting in The drill bit is often broken, or the junction box seat is thrown out of the chuck, and injury accidents occur

If the excessive clamping will cause the explosion-proof junction box seat to be non-circular due to the casting rough outer circle, it is more likely to cause the explosion-proof junction box seat to be clamped crookedly, that is, it is not on the horizontal line; therefore, using the above method to process the explosion-proof junction box seat terminal hole belongs to Serious violation of regulations! And when drilling or tapping cutting, the traditional method is to use diesel oil for cooling and lubrication, which seriously affects the health of the operator and causes waste

It can be seen that due to the lack of experience in the production of explosion-proof electrical machinery and components in the prior art, the current explosion-proof electrical machinery enterprises have potential serious problems in quality, and bring economic losses and affect the health of operators.

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