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Expansion mandrel for horizontal machining of electrical ceramic blank

A technology for expanding mandrels and blanks, applied in the field of expanding mandrels, can solve the problems of waste, difficulty in raising dust, time-consuming and laborious, tall equipment, etc., achieve the effects of reducing dust problems, improving product qualification rate, and reducing the difficulty of dust collection

Pending Publication Date: 2020-12-18
NANJING ZHIDA ELECTRICAL EQUIP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Due to the use of vertical lathe processing, the equipment is tall and heavy, and the tool running position is too high (according to different products, the highest processing point is about 5 meters from the ground, so personnel need to be clamped up and down by escalators and elevators, and auxiliary processing (manually polishing the surface) is time-consuming. strenuous
At the same time, due to the high processing position, it is difficult to effectively control the waste and dust generated during the processing process from a high place, especially when personnel are in the process of clamping, auxiliary processing (manual polishing) and other processes, there is a considerable risk of falling, and the blank due to its own defects Risk of breakage and fragmentation caused by damage, thrown from a high place, falling and hurting people

Method used

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  • Expansion mandrel for horizontal machining of electrical ceramic blank
  • Expansion mandrel for horizontal machining of electrical ceramic blank
  • Expansion mandrel for horizontal machining of electrical ceramic blank

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Embodiment Construction

[0021] The present invention will be further described below in conjunction with the accompanying drawings.

[0022] The present invention is an expansion mandrel for horizontal processing of electric porcelain blanks, the expansion mandrel is inserted into the hole in the axial direction of the electric porcelain blank, and includes a metal mandrel 21 and an air bag 22, the air bag 22 is covered with a metal On the outer wall of the mandrel 21, the air bag 22 is filled with an expansion medium, and the air bag 22 is made to interfere with the metal mandrel 21 and the hole of the electroceramic blank.

[0023] When the expansion mandrel is in use, insert the expansion mandrel into the central hole of the cylindrical blank, and fill the air bag 22 with expansion medium so that the blank and the metal mandrel 21 are tightly combined to form an integral structure that does not want to move. The blank is laid down and hoisted to a horizontal lathe for turning of the blank. When t...

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PUM

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Abstract

The invention discloses an expansion mandrel for horizontal machining of an electrical ceramic blank. The expansion mandrel is inserted and connected into a hole in the axis direction of the electricceramic blank and comprises a metal mandrel body and an air bag, wherein the outer wall of the metal mandrel body is coated with the air bag, the air bag is filled with an expansion medium, and the air bag abuts against the metal mandrel body and the inside of the hole of the electric ceramic blank. By the adoption of the expansion mandrel for horizontal machining of the electrical ceramic blank,the blank can be transversely machined, the product surface is improved, the problems that the electrical ceramic blank is prone to breakage during machining when being transversely placed is solved,the equipment height can be effectively reduced, the clamping difficulty and risk are lowered, the dust raising problem is relieved, and the dust collection effect is improved; and moreover, the safety risk of injuring the machining personnel due to product breakage, chipping and the like in the high-speed rotary machining process is lowered.

Description

Technical field: [0001] The invention relates to an expansion mandrel used for horizontal processing of electric porcelain blanks. Background technique: [0002] There are two schemes for the production process of high-voltage electric porcelain, one is the traditional process of filter press dehydration and vacuum extrusion molding, and the other is the dry process of spray drying dehydration and isostatic high-pressure compression molding. Both process schemes need to use water as the dispersion medium to make a slurry of various raw materials for homogenization and grinding, and then dehydrate the slurry by mechanical force to make a cylindrical intermediate product with a hole in the middle, which is commonly known as blank. [0003] Since the blank has not yet been sintered into porcelain, it is only combined by the self-bonding properties of clay, and its mechanical strength is very low, and it is easy to break once it is placed horizontally. Therefore, the tradition...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B28B11/04B28B11/08B28B17/04B24B19/22B24B41/06B24B55/06
CPCB24B19/22B24B41/06B24B55/06B28B11/044B28B11/08B28B17/04
Inventor 虞育号刘志勇
Owner NANJING ZHIDA ELECTRICAL EQUIP CO LTD
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