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Process for machining R8 collet chuck

A spring collet and processing technology, applied in the processing field of machine tool accessories, can solve the problems of low utilization rate of materials, waste of steel, complicated processes, etc., and achieve the effects of optimizing processing procedures, saving steel, and reducing processing difficulty

Active Publication Date: 2011-08-03
山东征宙机械股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] R8 collet is a relatively large amount of machine tool accessories. The traditional processing technology mainly includes blanking, annealing, machining appearance, drilling inner hole, turning inner hole, heat treatment, and grinding outer circle. This process directly uses round Steel blanking, annealing, and then processing the outer circle and inner hole; the R8 collet head has a large diameter, but the tail diameter is small, and a large amount of steel needs to be turned. The utilization rate of the material is very low, and a large amount of steel is wasted, and the inner hole needs to be turned. , the process is complicated, the working hours are long, and a lot of manpower and material resources are wasted.

Method used

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  • Process for machining R8 collet chuck

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Effect test

Embodiment 1

[0010] The present invention is in actual use, and concrete technology is:

[0011] A. Cutting material: use Φ26MM 65Mn round steel for the main body, cut length 110MM, quantity 2000 pieces; use Φ26MM 65Mn round steel for tail part, cut length 24MM, quantity 2000 pieces;

[0012] B. Die forging of the main body: the raw material is heated to 1100°C in an intermediate frequency induction furnace, and then die forged with a 60-ton press, and the final forging temperature is 910°C;

[0013] C. Insulation after forging: Send the workpieces after die forging directly into the incubator with a capacity of 2000 pieces, keep them warm for 20 hours, the temperature drops to 295°C, take out the workpieces and cool them to room temperature;

[0014] D. Drilling the inner hole: use a twist drill to drill the inner hole of the main body, with a diameter of Φ16MM;

[0015] E. Drill the air outlet at the tail: use a twist drill to drill an axial through hole in the center of the tail with a...

Embodiment 2

[0021] The present invention is in actual use, and concrete technology is:

[0022] A. Cutting material: use Φ26MM 65Mn round steel for the main body, cut length 110MM, quantity 2000 pieces; use Φ26MM 65Mn round steel for tail part, cut length 24MM, quantity 2000 pieces;

[0023] B. Die forging of the main body: the raw material is heated to 1140°C in an intermediate frequency induction furnace, and then die forged with a 60-ton press, and the final forging temperature is 920°C;

[0024] C. Heat preservation after forging: Send the workpieces after die forging directly into the heat preservation box, with a capacity of 2000 pieces, heat preservation for 21 hours, the temperature drops to 286°C, take out the workpieces and air cool them to room temperature;

[0025] D. Drilling the inner hole: use a twist drill to drill the inner hole of the main body, with a diameter of Φ16MM;

[0026] E. Drill the air outlet at the tail: use a twist drill to drill an axial through hole in th...

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Abstract

The invention relates to a process for machining an R8 collet chuck, which comprises the following processes of: blanking, performing die forging on a main body part, performing heat preservation after forging, drilling an inner hole, drilling a vent hole on the tail part, welding, machining a threaded hole on the tail part, cutting an excircle and drilling a clamping hole, wherein in the blanking process, raw materials on the main body part and the tail part are cut by round steel respectively; and the main body part is subjected to die forging, and the tail part is in friction welding with the main body part to form the integral R8 collet chuck. In the process, a split machining process is adopted, namely the main body part is subjected to die forging; and after the inner hole is drilled, the tail part is in friction welding with the main body part, so a great quantity of steel products can be saved, the machining processes are optimized, and the machining difficulty is reduced.

Description

technical field [0001] The invention relates to a processing technology of a machine tool accessory, in particular to a processing technology of an R8 collet. Background technique [0002] R8 collet is a relatively large amount of machine tool accessories. The traditional processing technology mainly includes blanking, annealing, machining appearance, drilling inner hole, turning inner hole, heat treatment, and grinding outer circle. This process directly uses round Steel blanking, annealing, and then processing the outer circle and inner hole; the R8 collet head has a large diameter, but the tail diameter is small, and a large amount of steel needs to be turned. The utilization rate of the material is very low, and a large amount of steel is wasted, and the inner hole needs to be turned. , the process is complex, the working hours are long, and a lot of manpower and material resources are wasted. Contents of the invention [0003] The object of the present invention is t...

Claims

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Application Information

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IPC IPC(8): B23P15/00
Inventor 刘明林王书军刘德军张秀清刘冬霞王晓平
Owner 山东征宙机械股份有限公司