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Expansible center

A top and die base technology, applied in the field of expandable tops, can solve the problems of high requirements on coaxiality and verticality, geometric tolerance of drawings, inconvenient loading and unloading, etc. desired effect

Active Publication Date: 2012-04-04
江苏泰隆机电科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, the I-wheel loading and unloading of the take-up equipment in the domestic metal products industry generally uses the shaft-through type, the cantilever type, etc., because the loading and unloading is very inconvenient, and later improved to the top-tight type, but because the top-tight type top is coaxial with the equipment The requirements for precision and verticality are relatively high, and the processing is difficult, especially the holes on the box where the cylinder shaft and the take-up shaft are installed are difficult to ensure the shape and position tolerance requirements on the drawings

Method used

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Embodiment Construction

[0014] The present invention will be further described below in conjunction with drawings and embodiments.

[0015] figure 1 , 2 As shown, an expandable top includes a mold base adapter block 1, an expandable mold base 2 and three expandable tops 3, and the expandable mold base 2 is installed on the mold base adapter block 1, which can be expanded The center of the mold base 2 is provided with a truncated cone 21, and the conical surface of the truncated cone is evenly distributed with three outer slopes 22 along the taper direction. The bottoms of the three expandable tops 3 are supported on the expandable mold by springs 7. On the seat 2, the inner surfaces of the three expandable tops 3 are respectively set on the three outer slopes 22 in a state of sliding up and down along the taper direction of the truncated cone; On the top, the sliding block 5 is connected to the inner surface of the expandable top 3 through the elastic cylindrical pin 6; the top of the expandabl...

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Abstract

The invention relates to an expansible center, which comprises a die holder switching block, an expansible die holder, three expansible centers, a guiding disk, sliding blocks, an elastic cylindrical pin and a spring, wherein the three expansible centers slide on the expansible die holder through the three sliding blocks to enable an I-shaped wheel rotating at a high speed to swing within a certain range. The expansible center disclosed by the invention has a compact structure, stability and reliability and is applied to a mechanism for supporting against the I-shaped wheel by an air cylinder; in the actual production process, the I-shaped wheel is supported against and self-centered by using the mechanism, so that the requirements of equipment on the coaxiality, the verticality and the parallism of each part are greatly reduced, and further a traditional fixed center is replaced, the production cost is reduced and the operation precision of the equipment is improved.

Description

technical field [0001] The invention relates to a jacking mechanism, in particular to an expandable top used for wire take-up equipment in the metal product industry. Background technique [0002] At present, the I-wheel loading and unloading of the take-up equipment in the domestic metal products industry generally uses the shaft-through type, the cantilever type, etc., because the loading and unloading is very inconvenient, and later improved to the top-tight type, but because the top-tight type top is coaxial with the equipment The requirements on the degree of precision and verticality are relatively high, and the processing is relatively difficult, especially the holes on the box where the cylinder shaft and the take-up shaft are installed are difficult to meet the requirements of the shape and position tolerances on the drawings. When the equipment is running at high speed, because the cylinder shaft and the take-up shaft are not concentric, there is a slight deviation...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B21C47/02
Inventor 于振雄吴文军
Owner 江苏泰隆机电科技有限公司
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