Precision CNC milling fixture for servo mechanism oil pump swash plate parts

A technology of precision numerical control and servo mechanism, applied in the direction of metal processing machinery parts, manufacturing tools, metal processing equipment, etc., can solve the problems of low quality stability, long development cycle, low production efficiency, etc., achieve low manufacturing cost, assembly Easy to clamp and improve processing efficiency

Active Publication Date: 2016-04-20
NANJING CHENGUANG GRP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The product development cycle is long, the production efficiency is low, and the quality stability is not high

Method used

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  • Precision CNC milling fixture for servo mechanism oil pump swash plate parts
  • Precision CNC milling fixture for servo mechanism oil pump swash plate parts

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Experimental program
Comparison scheme
Effect test

Embodiment

[0021] The features of the parts to be clamped are typical weakly rigid parts, which are hollow and sheet-shaped. Due to the poor rigidity of the parts themselves, in order to ensure the rigidity of the entire process system to ensure the geometric tolerance and surface roughness of CNC machining, it can also be To avoid interference among parts, fixtures and tools, the design process clamping device is a two-top and one-pull CNC fixture to meet the needs of CNC integrated processing. The clip specifically includes: mounting seat 1, positioning and orientation pin 2, pull-down bolt 3, pull block 4, interference pin 5, side tightening screw 6, chuck seat 7, and compression screw 8.

[0022] The mounting seat 1 is positioned on the basic block of the worktable of the numerical control equipment through the cross keyway of the bottom plane, and is fastened and connected with bolts. The upper end surface of the mounting seat 1 is provided with two pin holes and four mounting screw...

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PUM

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Abstract

The invention discloses a precise numerical control milling machining clamp for swash plate type parts of a servo mechanism oil pump. The precise numerical control milling machining clamp comprises an installing seat, a pull block and a chuck seat, wherein the lower end surface of the installing seat is provided with a cross key slot, the installing seat and the pull block as well as the pull block and the chuck seat are respectively positioned through pins and are fixedly connected through screw bolts, the middle of the pull block is provided with a step hole, the hole diameter of the hole, near the upper end surface, of the step hole is smaller than that of the hole near the lower end surface, a downward pull screw bolt is arranged in the step hole, a lug boss is arranged on a bottom plate of the chuck seat, the middle of the chuck seat is provided with a through square hole, the periphery of the lug boss is provided with screw holes penetrating through the square hole, and lateral fastening screws are arranged in the screw holes, wherein the downward pull screw bolt extends into the square hole. The precise numerical control milling machining clamp has the advantages that the positioning is stable, the installation and the clamping are convenient, in addition, the multi-molded-surface processing can be completed through once installation and clamping, and the dimensional precision and the form and position precision of the parts can be guaranteed.

Description

technical field [0001] The invention belongs to the technical field of mechanical processing, in particular to a precision numerical control milling fixture for swash plate parts of a servo mechanism oil pump. Background technique [0002] Weak rigid special-shaped structural parts have irregular shape and structure, and require high dimensional accuracy and shape and position accuracy. Most of the traditional craft methods are turning, milling and grinding. Due to the limited processing capacity of ordinary equipment and low processing integration, one clamping can only complete less processing content. In view of the unique structure of this part, it is necessary to complete the processing of multiple profiles, spatial dimensions, and spatial angles. Processing equipment (lathes, milling machines, grinding machines), each process needs to design and manufacture different special tooling to realize the processing of parts. On ordinary equipment (lathes, milling machines, ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B23Q3/06
CPCB23Q3/062B23Q2703/10
Inventor 王伟王雪梅徐斌胡雪梅付金贵
Owner NANJING CHENGUANG GRP
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