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Slit adjusting and positioning device for prestressed high-pressure die winding and preparation method

A positioning device and prestressing technology, applied in attachments, electrode manufacturing, manufacturing tools, etc., can solve problems such as shortening the service life of the mold, uneven pressure distribution in the high-pressure cavity, and fracture of the steel strip, and improve processing accuracy and efficiency. Effect

Active Publication Date: 2021-04-09
JILIN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When the tension fluctuates, the steel belt will move along the axial direction of the guide wheel, or when the friction groove appears on the guide wheel due to long-term wear, the position of the steel belt at the far end will deviate greatly, which will affect the prestressed high pressure. The mold has the following effects: 1. Steel strip slips, interference between adjacent steel strips, and winding is interrupted; 2. The prestress of the high-pressure mold is uneven, which leads to uneven pressure distribution in the high-pressure cavity and shortens the service life of the mold; The first is the structure of upper and lower limit pressing blocks. The height of the winding steel strip is adjusted by pressing the vertical edge of the steel strip on the plane of the limit pressing block, but this will cause the steel strip to curl under force, or even tear the edge, resulting in the breakage of the steel strip.
In the existing device, during the winding process of the steel strip, it is difficult to accurately adjust the height of the steel strip

Method used

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  • Slit adjusting and positioning device for prestressed high-pressure die winding and preparation method
  • Slit adjusting and positioning device for prestressed high-pressure die winding and preparation method
  • Slit adjusting and positioning device for prestressed high-pressure die winding and preparation method

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Effect test

Embodiment 1

[0021] Embodiment 1: The machining process of the limiting unit of the present invention

[0022] The slit limit unit is processed by wire cutting equipment. The specific processing method is as follows: firstly, the No. 45 steel is processed into a structure that connects a cuboid and a cylinder. The size of the cuboid is 80mm×60mm×50mm. In the center of a 80mm×50mm surface, the diameter of the cylinder is 30mm and the height is 60mm. Clamp the above-mentioned structure on the linear cutting indexer, and then cut it perpendicular to the surface and parallel to the long edges on another 80mm×50mm surface. A slit with a width of 0.2mm and a depth of 40mm, then adjust the angle of the indexer 30° counterclockwise, the cutting depth is 3mm, cut the chamfer at one end of the slit, and finally reverse the rotation 60° to cut the chamfer at the other end of the slit, so that A limit unit is obtained. The finished slit limit unit such as image 3 As shown, the slit dimensions are a...

Embodiment 2

[0023] Embodiment 2: overall structure of the present invention

[0024] The slit adjustment and positioning device used for prestressed high-pressure mold winding in the present invention is as follows: figure 1 As shown, the present invention is used for the positioning of prestressed high-pressure mold winding steel strips. In this embodiment, the steel strip 101 to be wound is a thin 65Mn steel strip with a width of 34.5 mm and a thickness of 0.15 mm. The slit width of the limit unit is 0.2mm, which ensures that the steel strip can pass through the slits smoothly. Multiple slit limit units work together to fine-tune the height of the steel strip.

[0025] Such as figure 1 As shown, the upper and lower support base plates 105 are connected by four support columns 100 to form the supporting structure of the slit positioning adjustment device. Positioning guide holes are arranged on the upper and lower support base plates 105, and the rotating handle on the slit limit unit 1...

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Abstract

The invention discloses a slit adjusting and positioning device for prestressed high-pressure die winding, and belongs to the technical field of machining. The device comprises a supporting column (100), a lower limiting unit (101), an upper limiting unit (102), a supporting frame (103), a puller screw (104) and a supporting bottom plate (105), and the supporting bottom plate (105) is connected and fixed by the supporting column (100). Single-side positioning is provided for a large-tension steel belt through the slit structure, the height of the wound steel belt can be accurately positioned through combined use of the upper ridge surface and the lower ridge surface of the steel belt, and meanwhile, the phenomena of edge curling, cracking or breaking of the steel belt caused by a large-plane adjusting block are avoided.

Description

technical field [0001] The invention belongs to the technical field of mechanical processing, and in particular relates to a positioning and adjustment for a tensioned steel belt under a large tension force. Background technique [0002] The Belta-type double-top hydraulic press is a high-pressure generating device widely used in foreign high-pressure scientific research and production of artificial superhard materials, but it has not been widely used in my country. The fundamental reason is that the core technology (including materials) of high-pressure mold preparation has yet to be resolved. The prestressed high-pressure mold with winding design is an effective means to reduce the material requirements of high-pressure mold and improve its comprehensive performance. [0003] my country is a big producer of superhard materials, and its output accounts for more than 95% of the world's total output. However, there is still a certain gap between high-quality synthetic diamo...

Claims

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Application Information

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IPC IPC(8): B23H7/02B23H7/10B23H11/00
CPCB23H7/02B23H7/104B23H11/00
Inventor 李洪宇何志朱品文彭刚吴洪伟吕云洲彭寅山王海涛李京
Owner JILIN UNIV
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