A rotary machine tool fixture and a method for clamping workpieces

A machine tool fixture and anti-rotation technology, which is applied to metal processing mechanical parts, clamping, manufacturing tools, etc., can solve the problems of scrapping of processed parts, and achieve the effect of short replacement time, universality, and flexible automatic production.

Active Publication Date: 2018-11-02
CHENGDU AIRCRAFT INDUSTRY GROUP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, with the chuck (three-jaw or four-jaw) supplemented by the center frame and the top clamping blank, only the clamping force of the chuck and the top clamping force of the top are used to fasten the blank. Under the action of the tip force, there may be relative displacement with the chuck, including relative rotational misalignment and axial movement, causing the processed parts to be scrapped

Method used

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  • A rotary machine tool fixture and a method for clamping workpieces
  • A rotary machine tool fixture and a method for clamping workpieces
  • A rotary machine tool fixture and a method for clamping workpieces

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] Such as Figures 1 to 3 As shown, a rotary machine tool fixture includes a main shaft connecting body 1, a blank 17 and a top 15. The main shaft connecting body 1 is provided with a positioning ring 11, a hydraulic channel 9, a hydraulic joint 5 and a plurality of key grooves 6. The key grooves 6 are evenly distributed around the positioning ring 11, the zero point positioning module 2 is installed in the positioning ring 11, the zero point positioning module 2 is provided with a central hole 7, one end of the hydraulic channel 9 is connected with the hydraulic joint 5, and the other One end communicates with the central hole 7, the hydraulic joint 5 is connected with a hydraulic pump, the central hole 7 is equipped with a pull stud 5, the main shaft connecting body 1 is connected with an anti-rotation positioning block 4 through bolts, and the anti-rotation positioning The block 4 is provided with a positioning key 10 that cooperates with the keyway 6, and the anti-rot...

Embodiment 2

[0034] Such as Figures 1 to 3 As shown, a rotary machine tool fixture includes a main shaft connecting body 1, a blank 17 and a top 15. The main shaft connecting body 1 is provided with a positioning ring 11, a hydraulic channel 9, a hydraulic joint 5 and a plurality of key grooves 6. The key grooves 6 are evenly distributed around the positioning ring 11, the zero point positioning module 2 is installed in the positioning ring 11, the zero point positioning module 2 is provided with a central hole 7, one end of the hydraulic channel 9 is connected with the hydraulic joint 5, and the other One end communicates with the central hole 7, the hydraulic joint 5 is connected with a hydraulic pump, the central hole 7 is equipped with a pull stud 5, the main shaft connecting body 1 is connected with an anti-rotation positioning block 4 through bolts, and the anti-rotation positioning The block 4 is provided with a positioning key 10 that cooperates with the keyway 6, and the anti-rot...

Embodiment 3

[0039] Such as Figures 1 to 3 As shown, a rotary machine tool fixture includes a main shaft connecting body 1, a blank 17 and a top 15. The main shaft connecting body 1 is provided with a positioning ring 11, a hydraulic channel 9, a hydraulic joint 5 and a plurality of key grooves 6. The key grooves 6 are evenly distributed around the positioning ring 11, the zero point positioning module 2 is installed in the positioning ring 11, the zero point positioning module 2 is provided with a central hole 7, one end of the hydraulic channel 9 is connected with the hydraulic joint 5, and the other One end communicates with the central hole 7, the hydraulic joint 5 is connected with a hydraulic pump, the central hole 7 is equipped with a pull stud 5, the main shaft connecting body 1 is connected with an anti-rotation positioning block 4 through bolts, and the anti-rotation positioning The block 4 is provided with a positioning key 10 that cooperates with the keyway 6, and the anti-rot...

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PUM

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Abstract

The invention relates to a rotating machine tool clamp. The rotating machine tool clamp is characterized in that a positioning ring, a hydraulic channel, a hydraulic joint and a plurality of keyways are arranged on and formed in a main shaft connector, wherein a zero-point positioning die is mounted in the positioning ring; a central hole is formed in the zero-point positioning die; one end of the hydraulic channel is connected with the hydraulic joint, and the other end of the hydraulic channel communicates with the central hole; the hydraulic joint is connected with a hydraulic pump; a pulling nail is mounted on the central hole; the main shaft connector is connected with a rotating preventing positioning block through a bolt; positioning keys fitting the keyways are arranged on the rotating preventing positioning block; the rotating preventing positioning block is fixedly connected to one end surface of a blank; a preset hole which is fixedly connected with the pulling nail is formed in one end surface of the blank. According to the rotating machine tool clamp, the blank can be accurately positioned and tensioned through the hydraulic pump and the pulling nail, so that the blank can be prevented from axial moving during being processed; the end surface of the blank is fixed through the rotating preventing positioning block, so that the blank can be prevented from axial displacing during being processed.

Description

technical field [0001] The invention belongs to the technical field of mechanical part processing equipment, and in particular relates to a rotary machine tool fixture and a method for clamping a workpiece. Background technique [0002] Machine tool fixture is a device used to fix the processing object in the process of mechanical manufacturing so that it occupies the correct position for construction or inspection. In a broad sense, any process in the process, the device used to install the workpiece quickly, conveniently and safely, can be called a fixture. Such as welding fixtures, inspection fixtures, assembly fixtures, machine tool fixtures, etc. Among them, machine tool fixtures are the most common, often referred to as fixtures. When processing a workpiece on a machine tool, in order to make the surface of the workpiece meet the technical requirements such as the size, geometric shape, and position accuracy with other surfaces specified in the drawing, the workpiece...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B23Q3/12B23Q3/08
CPCB23Q3/082B23Q3/12
Inventor 张文光田智陈伟
Owner CHENGDU AIRCRAFT INDUSTRY GROUP
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