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Modular step chuck

A modular and stepped technology, applied in the direction of the chuck, can solve the problems of poor control of the two flatness dimensions of the workpiece, small contact surface between the workpiece and the chuck, and difficulty in clamping the workpiece. Low, precise clamping effect

Pending Publication Date: 2021-04-30
SHANGHAI NACUO MACHINERY MFG PLANT
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, all kinds of chucks sold on the market are more suitable for clamping blanks or parts that do not have high requirements on the surface. Its disadvantage is that if the front side has been processed and the reverse side is turned around, the standard jaws are easy to pinch. The surface of the part and the two flatness dimensions of the workpiece are not well controlled
Use standard claws to make special step claws according to the clamping shape and step height of the parts to be produced. Processing and making special step claws requires operators to have good professional skills, and the production time is relatively long, and can only be used for The clamping diameter and step height are similar to this part. For ordinary machinery factories, many parts of different sizes are processed every day, and many special step jaws need to be made. When replacing another part, the current step must be replaced. The claws are disassembled and reassembled, which is time-consuming, laborious and expensive
For parts with high precision requirements such as special-shaped parts and eccentric parts, they can only be clamped by an uncentered four-jaw chuck. It is difficult to correct the clamped workpiece, the efficiency is low, and the required cost is also high.
For the three-jaw chuck to process thin slices, due to the three-point positioning, the contact surface between the workpiece and the chuck is small, it is easy to shake the knife, and the life of the chuck is relatively low

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0042] like Figure 1 to Figure 18 As shown, a modular step chuck adopts two-jaw chuck and positive jaw clamping method, including:

[0043] The chuck body 10 has an installation bottom surface for installation on equipment, and its top surface is provided with a first installation groove 101 for assembling the modular step jaws and a second installation groove for assembling the parallel block 15 of the chuck body 102. The first installation groove 101 adopts a T-shaped groove with both ends transparent. The second installation groove 102 adopts a T-shaped groove with an inner opening and an outer closure, which communicates with the inner hole of the chuck in its length direction, and is not connected with the outer circle of the chuck, so as to prevent the parallel block of the chuck body from flying out of the chuck when the equipment rotates. body. The length direction of the first installation groove 101 and the second installation groove 102 extends along the radial ...

Embodiment 2

[0053] like Figure 19 As shown, the difference from Embodiment 1 is that the modular step chuck adopts the clamping method of reverse jaws, that is, the jaw steps 12 are reversed by 180 degrees and fixed on the jaw base 11 . The clamping surface is on the outside and the reference surface is on the inside.

Embodiment 3

[0055] like Figure 20 As shown, the difference from Embodiment 1 is that the modular step chuck is a three-jaw chuck. There are three first installation grooves 101 and three second installation grooves 102, which are alternately and evenly arranged around the center of the chuck body.

[0056] In the above embodiments, the reference surface of the reference clamping part 121 is a double-arc clamping surface with inner and outer diameters, that is, it includes two kinds of reverse arc surfaces, and the reference surface of the first clamping module 131 is a single-arc clamping surface , the clamping surface is a double-arc clamping surface with inner and outer diameters, the reference surface of the second clamping module 132 is a single-arc clamping surface, and its clamping surface is a single-arc clamping surface, which can clamp relatively small Parts, especially for clamping inner bore parts that are smaller than the datum plane of the module datum clamping portion.

...

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Abstract

The invention provides a modular step chuck. According to the modular step chuck, by replacing clamping modules and equal-height columns, clamping of workpieces with different diameters and different height sizes can be achieved without disassembling clamping jaws, the product machining efficiency is greatly improved, and the product machining range is greatly enlarged. The modular step chuck comprises a chuck body, modular step clamping jaws, clamping module sets, chuck body parallel blocks, clamping jaw parallel blocks and the equal-height columns. The modular step chuck has the beneficial effects that according to needs, various special-shaped parts and eccentric parts can be clamped through the replacement of the clamping modules, an inner circle clamping module and an outer circle clamping module are designed, completeness of the clamping faces can be kept without specially-made modules, the clamping faces of the clamping modules can be two or more combined faces, and under the same module, more than doubled different clamping faces can be clamped, and at least doubled module manufacturing is reduced; and when a sheet workpiece is clamped, through the consistency of the height design of the equal-height columns fixed to the clamping jaw parallel blocks and the equal-height columns fixed to the chuck body parallel blocks, the plane of the workpiece can be flatly attached to multiple points, and the shockproof effect is better.

Description

technical field [0001] The invention relates to the technical field of mechanical chucks, in particular to a modular stepped chuck. Background technique [0002] At present, all kinds of chucks sold on the market are more suitable for clamping blanks or parts that do not have high requirements on the surface. Its disadvantage is that if the front side has been processed and the reverse side is turned around, the standard jaws are easy to pinch. The surface of the part and the two flatness dimensions of the workpiece are not easy to control. Use standard claws to make special step claws according to the clamping shape and step height of the parts to be produced. Processing and making special step claws requires operators to have good professional skills, and the production time is relatively long, and can only be used for The clamping diameter and step height are similar to this part. For ordinary machinery factories, many parts of different sizes are processed every day, an...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23B31/103
CPCB23B31/103
Inventor 朱宏斌
Owner SHANGHAI NACUO MACHINERY MFG PLANT