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Positioning fixture for turning inner hole in casting

A technology for positioning fixtures and inner holes, which is applied in the field of mechanical processing, can solve the problems of scrapped workpieces, failure of inner hole turning, and difficult positioning of inner holes to be turned, and achieve the effect of reducing scrap rate and improving concentricity

Inactive Publication Date: 2016-08-24
CHANGZHOU KAIFA GUANGMING CASTING FACTORY GENERAL PARTNERSHIP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is: the positioning of the inner hole to be turned on the existing casting is difficult, and the required positioning dimensional accuracy is often not obtained
As a result, it is easy to cause the failure of inner hole turning, and eventually lead to the scrapping of the workpiece

Method used

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  • Positioning fixture for turning inner hole in casting
  • Positioning fixture for turning inner hole in casting
  • Positioning fixture for turning inner hole in casting

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Embodiment Construction

[0023] In order to make the content of the present invention easier to be understood clearly, the following further describes the present invention in detail based on specific embodiments in conjunction with the accompanying drawings.

[0024] See Figure 1-Figure 5 , A positioning fixture for casting inner hole turning, a pair of flanges are arranged in parallel, and the pair of flanges are fixedly connected by 4 pins 3; the center of the first flange 1 is provided with a first pass Hole 101, the center of the second flange plate 2 is provided with a second through hole 201, the first and second through holes are coaxial, and the aperture of the second through hole 201 is larger than the aperture of the first through hole 101; The flange 1 is provided with a first set of pin holes 103, and the holes of the first set of pin holes 103 are evenly distributed on a circumference centered on the center of the first flange; the second flange 2 is provided with a second Group pin holes...

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Abstract

The invention relates to a positioning fixture for turning an inner hole in a casting, and belongs to the technical field of mechanical processing. The positioning fixture for turning an inner hole in the casting is characterized in that a pair of ring flanges is configured in parallel and is fixedly connected through 3-4 pin columns (3); a first through hole (101) is formed in the center of the first ring flange (1), a second through hole (201) is formed in the center of the second ring flange (2), the first through hole and the second through hole are coaxial, and the hole diameter of the second through hole (201) is larger than that of the first through hole (101); a first group of pin holes (103) are formed in the first ring flange (1), and the hole centers of the first group of pin holes (103) are uniformly distributed in a circumference which uses the circle center of the first ring flange as the center; a second group of pin holes (202) are formed in the second ring flange (2), and the hole centers of the second group of pin holes (202) are uniformly distributed in a circumference which uses the circle center of the second ring flange as the center.

Description

Technical field [0001] The invention relates to a positioning fixture for turning inner holes of castings and belongs to the technical field of mechanical processing. Background technique [0002] The fixture is a process device used to quickly fasten the workpiece during processing, so that the machine tool, cutter, and workpiece maintain the correct relative position. Tooling and fixtures are indispensable parts of machining. Driven by the development of machine tool technology towards high-speed, high-efficiency, precision, composite, intelligence, and environmental protection, fixture technology is developing in the direction of high-precision, high-efficiency, modular, combined, universal, and economical. . [0003] After the precision casting is completed, the casting often needs to be machined to obtain the required shape and size. However, the existing precision castings have different shapes, and some precision castings also need to have inner holes turned. The positioni...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23Q3/12
Inventor 徐天宇
Owner CHANGZHOU KAIFA GUANGMING CASTING FACTORY GENERAL PARTNERSHIP
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