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Die casting machine punch

A die-casting machine and punch technology, which is applied in the field of mechanical parts manufacturing, can solve the problems of fewer punches, serious wear of punches, and inconspicuous improvement, so as to increase the durability of punches, reduce the amount of wear of punches, and reduce production costs Effect

Active Publication Date: 2012-04-04
SHANGHAI CENSI AUTOMOBILE PARTS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In order to reduce the wear of the punch, lubricant is generally added. However, since the side surface of the punch is smooth, the amount of lubricant attached to the punch is too small during the movement of the punch.
Therefore, the wear of the punch has improved, but the improvement is not obvious, and the wear of the punch is still serious

Method used

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  • Die casting machine punch
  • Die casting machine punch
  • Die casting machine punch

Examples

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Effect test

Embodiment 1

[0020] Such as figure 1 , figure 2 , image 3 As shown, a die-casting machine punch includes a punch body 1, an injection part 2 is provided at one end of the punch body 1 in the axial direction, and a connecting part 3 is provided at the other end. The axial center of the punch body 1 A cooling cavity 4 is provided, and a lubricating part 5 and a smoothing part 7 are provided on the radially outer surface of the punch body 1 . The lubricating part 5 is composed of a plurality of oil grooves 6 arranged at intervals on the radially outer surface of the punch body 1 , and one or both ends of the lubricating part 5 are smooth parts 7 . The lubricating portion 5 has a width of 0.657 of the width of the radial outer surface of the punch body 1 and a surface roughness of 0.8 μm. The lubricating part 5 is provided with oil grooves 6 arranged at intervals of 1 mm. The cross section of the oil grooves 6 is arc-shaped, the width of the oil grooves 6 is 0.25 mm, and the depth of the ...

Embodiment 2

[0022] A die-casting machine punch, the punch includes a punch body, an injection part is provided at one axial end of the punch body, a connecting part is provided at the other end, a cooling cavity is provided at the axial center of the punch body, the punch body The radially outer surface of the body is provided with a lubricating portion. The lubricating part is composed of a plurality of oil grooves arranged at intervals on the radially outer surface of the punch body. The lubricating part is arranged between the injection part and the connecting part, covering the entire radially outer surface of the punch body. The surface roughness of the lubrication portion was 0.8 μm. The oil grooves that make up the lubricating part are arranged at a pitch of 1 mm. The cross section of the oil grooves is arc-shaped, the width of the oil grooves is 0.3 mm, and the depth of the oil grooves is 0.01 mm.

Embodiment 3

[0024] A die-casting machine punch, the punch includes a punch body, an injection part is provided at one axial end of the punch body, a connecting part is provided at the other end, a cooling cavity is provided at the axial center of the punch body, the punch body The radially outer surface of the body is provided with a lubricating portion. The lubricating part is composed of an oil groove arranged on the radially outer surface of the punch body. The cross section of the oil groove is rectangular, and one or both ends of the lubricating part are smooth parts. The width of the oil groove is 0.45 of the radial outer surface width of the punch body, and the surface roughness of the oil groove is 0.8 μm. The oil groove depth is 0.1mm.

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Abstract

The invention relates to a die casting machine punch, which comprises a punch body, wherein one axial end of the punch body is provided with an injection part, the other end of the punch body is provided with a connection part, a cooling cavity body is arranged at the axial center of the punch body, and a lubricating part is arranged at the axial external surface of the punch body, and is provided with an oil groove. Compared with the prior art, the invention has the advantages of reducing the abrasion loss of the punch, increasing the durability of the punch, reducing the production cost and the like.

Description

technical field [0001] The invention relates to the field of mechanical parts manufacturing, in particular to a die-casting machine punch. Background technique [0002] When the die-casting aluminum alloy is formed, the aluminum alloy is heated to about 650-700°C to melt it into a liquid state, and then the mold is installed on the die-casting machine, and then the aluminum liquid is poured into the mold, and the hydraulic oil is used at high speed and high pressure. Action takes shape. In the process of die-casting, it is necessary to pressurize the molten aluminum alloy into the mold to form the shape of the finished product, and the punch has a pressure-feeding function in it. When the die-casting machine is running, there is constant sliding friction back and forth between the punch and the barrel, so the punch is the most worn out of all mechanical parts. In order to reduce the wear of the punch, lubricant is generally added. However, since the side surface of the pun...

Claims

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Application Information

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IPC IPC(8): B22D17/20
Inventor 仲田陈国策
Owner SHANGHAI CENSI AUTOMOBILE PARTS
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