Flexible magnet rheological tongs

A flexible fixture and magnetorheological technology, applied in the field of workpiece fixtures, can solve the problems of low degree of automation, long phase transition time, and pollution of the environment, and achieve the effects of high degree of automation, short phase transition time, and no environmental pollution.

Inactive Publication Date: 2004-04-21
UNIV OF SCI & TECH OF CHINA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] ①Each fixture can only be designed for a certain type of workpiece with the same shape. The adaptability of the fixture to the shape of the workpiece is narrow and the use efficiency is low; ②The disassembly and assembly of the fixture can only be done manually, which is not convenient for mechanical control and the degree of automation Low
[0004] Although in response to the above problems, the design of combined fixtures and flexible fixtures has appeared (see "Flexible Fixture Design Method and Technology", Mou Yanjun, Information Technology, No. 10, 2000), but because it continues to use the purely mechanical structure of the traditional fixture, Still can't solve the following problems:
[0005] ①When the rigidity of the workpiece is very low and easy to deform, the positioning and dimensional accuracy after clamping cannot be guaranteed; ②For workpieces with very irregular geometric shapes, positioning and clamping cannot be performed
However, this fixture also has great defects, which limit its industrial application:
[0007] ①The phase change takes a long time and needs to be carried out at a specific temperature; ②The cost of the phase change material itself and the cost of the equipment used are too high; ③Some phase change materials will pollute the environment and seriously damage human health, such as: lead

Method used

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  • Flexible magnet rheological tongs
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Embodiment Construction

[0036]Embodiments of the present invention are as follows: column pin 1 is 16 rigid cylinders, made of 35# steel, with a size of φ3mm and a length of 30mm; the front end of the column pin is a ball head, the rear end is a flat head, and a same The compression spring 2 of the shaft, the size of the spring is φ3mm, the length is 10mm, and the material is 65# steel; the frame 3 is a rectangular ring made of 35# steel, the outer size is 20×23mm, and a vertical tight is set on the upper side of the frame. Fixed bolt 6 is used as the fastener that fixes pin, and the lower end of fixed bolt connects a lower side and is the block 5 of serration, and the inboard of frame lower side is also pasted with hard rubber layer 4 as elastic interlayer. The base 7 is a U-shaped piece made of 35# steel. The excitation part 8 and the tank 10 are placed in the groove of the base and fixed with screws. The tank is made of copper, and its inner cavity size is 20×20×23mm (length×width × high); the pre...

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Abstract

A magnetorheopectic flexible fixture suitable for the workpieces with different shapes and characteristics is composed of locating head and fixture body. Said locating head consists of pin, spring, frame and fastener. Said fixture body comprises base, recepting pool, press bar, magnetic exciting part, core rod and magnetorheopectic material. Said locating head and magnetorheopectic material are contained in the cavity of said recepting pool for clamping the workpiece.

Description

Technical field: [0001] The present invention relates to mechanical clamping devices, and more particularly to clamps that can accommodate workpieces of different shapes. Background technique: [0002] Traditional fixtures are mainly mechanical fixtures, which have been widely used in various processing industries, and their process and design criteria have been standardized. However, these traditional fixtures generally have the following disadvantages: [0003] ①Each fixture can only be designed for a certain type of workpiece with the same shape. The adaptability of the fixture to the shape of the workpiece is narrow and the use efficiency is low; ②The disassembly and assembly of the fixture can only be done manually, which is not convenient for mechanical control and the degree of automation Low. [0004] Although in response to the above problems, the design of combined fixtures and flexible fixtures has appeared (see "Flexible Fixture Design Method and Technology", M...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23Q3/15
Inventor 张先舟王琪民张培强
Owner UNIV OF SCI & TECH OF CHINA
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