CN205733060U

CN205733060U - Floating clamp

Info

Publication number: CN205733060U
Application number: CN201620429212.6U
Authority: CN
Inventors: 杨群浩; 张果; 刘李
Original assignee: Tianma Chengdu Railway Bearing Co Ltd
Current assignee: CHENGDU TIANMA PRECISION MACHINERY Co.,Ltd.
Priority date: 2016-05-12
Filing date: 2016-05-12
Publication date: 2016-11-30
Anticipated expiration: 2026-05-12

Abstract

The utility model discloses a kind of floating clamp, it includes three floating brackets being shaped as arc, three floating brackets are evenly distributed on same circumference, described floating bracket two ends are provided with floating claw, described floating claw is connected with floating bracket by bearing pin and nut, described floating claw two ends are provided with the stuck point of projection, it is provided with contiguous block in the middle part of described floating bracket, described contiguous block is connected with floating bracket by screw, floating clamp of the present utility model is used to clamp workpiece, so that the endoporus ovality of workpiece is reduced to 0.02～0.08 from 0.15～0.40 after rough turn processing, faceted pebble degree is reduced to 0.02～0.06 from 0.20～0.45, the most reach finish turning technological requirement scope.

Description

Floating clamp

Technical field

This utility model relates to machining technique field, is specifically related to a kind of floating clamp.

Background technology

When processing equipment part, it is common that utilize the fixture being arranged on corresponding lathe to fix part to be processed, so And, in practical operation, because scattered error scope and the form and position tolerance of thin-wall product forging blank overall dimensions are relatively big, using tradition When scroll chuck carries out turnery processing, the most all can carry out the operations such as car rough turn, thin, finish turning and buffing, to ensure The accuracy of form and position of turner finished product, but it is the normal process meeting multiple operation, it is necessary that forging has bigger allowance, Therefore the deficiency that production efficiency is low, material cost is high can be there is.

Utility model content

This utility model overcomes the deficiencies in the prior art, it is provided that one realizes thin-wall product forging blank at numerically controlled lathe Upper clamping turning, effectively reduces ovality and the floating clamp of faceted pebble degree of product internal diameter machined surface.

For achieving the above object, this utility model is by the following technical solutions:

A kind of floating clamp, it includes that three floating brackets being shaped as arc, three floating brackets are evenly distributed on together On one circumference, described floating bracket two ends are provided with floating claw, and described floating claw is connected with floating bracket by bearing pin and nut Connecing, described floating claw two ends are provided with the stuck point of projection, are provided with contiguous block in the middle part of described floating bracket, and described contiguous block passes through spiral shell Nail is connected with floating bracket.

Further technical scheme is, described floating bracket two ends are provided with installation cavity, described installation cavity upper surface and under Surface all offers the second through hole, offers fourth hole in the middle part of described floating claw, and described bearing pin is through the second through hole and the Four through holes by floating claw being arranged in installation cavity by the way of nut screw connection.

Further technical scheme is, offers third through-hole, open in the middle part of described contiguous block in the middle part of described floating bracket Being provided with the first through hole, described screw sequentially passes through third through-hole and floating bracket is arranged on contiguous block by the first through hole.

The technical program first passes through be provided with at each floating claw two ends projection stuck point, due to floating claw Number is six, so this floating clamp increases to 12 stuck points from three original stuck points, simultaneously at floating claw two ends Distance between stuck point is the most identical, thus can ensure that the chucking power suffered by held excircle of workpiece is the most uniformly divided Cloth, then it is connected with each other with floating bracket with coordinating of nut by floating claw by bearing pin, forms first order floating chain, floating Dynamic support is arranged on contiguous block by screw, forms second level floating chain, then regulates floating by the pretightning force of screw The amount of floating of fixture, so that 12 stuck points can irregularly change, with held excircle of workpiece, skew of floating accordingly, protects Card the most rationally contacts, and makes held workpiece be maintained at a preferable centre of gyration position and rotates, and then makes turner Endoporus ovality and the faceted pebble degree of finished product are the most preferably revised, and improve the accuracy of form and position of product.

Compared with prior art, the beneficial effects of the utility model are:

Use floating clamp of the present utility model clamp workpiece so that after rough turn processing the endoporus ovality of workpiece from 0.15～0.40 is reduced to 0.02～0.08, and faceted pebble degree is reduced to from 0.20～0.45 0.02～0.06, the most reach finish turning work Skill claimed range.

Accompanying drawing explanation

Fig. 1 is the structural representation of the floating clamp of a kind of embodiment of this utility model.

Fig. 2 is the sectional view of Fig. 1.

Fig. 3 is the structural representation of floating claw in Fig. 1.

As it can be seen, wherein corresponding reference is entitled:

1 contiguous block, 11 first through holes, 2 floating brackets, 21 second through holes, 22 installation cavitys, 23 third through-holes, 3 float blocks Pawl, 31 stuck points, 32 fourth holes, 4 nuts, 5 bearing pins, 6 screws.

Detailed description of the invention

Below in conjunction with the accompanying drawings this utility model is further elaborated.

A kind of floating clamp as Figure 1-3, it includes three floating brackets 2 being shaped as arc, three floatings Frame 2 is evenly distributed on same circumference, and floating bracket 2 two ends are provided with floating claw 3, and floating claw 3 is by bearing pin 5 and nut 4 Being connected with floating bracket 2, specially floating bracket 2 two ends are provided with installation cavity 22, and installation cavity 22 upper and lower surface is all offered Having the second through hole 21, offer fourth hole 32 in the middle part of floating claw 3, bearing pin 5 is through the second through hole 21 and fourth hole 32 also Being arranged in installation cavity 22 by floating claw 3 by the way of coordinating with nut 4, floating claw 3 two ends are provided with the stuck point of projection 31, it is provided with contiguous block 1 in the middle part of floating bracket 2, contiguous block 1 is connected with floating bracket 2, specially in floating bracket 2 by screw 6 Portion offers third through-hole 23, offers the first through hole 11 in the middle part of contiguous block 1, and screw 6 sequentially passes through third through-hole 23 and first Floating bracket 2 is arranged on contiguous block 1 by through hole 11.

Essence of the present utility model is described in detail by above detailed description of the invention, but can not be to of the present utility model Protection domain limits, it should be apparent that, under enlightenment of the present utility model, the art those of ordinary skill is all right Carry out many improvement and modification, it should be noted that these improve and modify all to fall and protect in claim of the present utility model Within the scope of.

Claims

1. a floating clamp, it is characterised in that it includes three floating brackets (2) being shaped as arc, three floating brackets (2) being evenly distributed on same circumference, described floating bracket (2) two ends are provided with floating claw (3), and described floating claw (3) leads to Crossing bearing pin (5) and nut (4) is connected with floating bracket (2), described floating claw (3) two ends are provided with the stuck point (31) of projection, institute Stating floating bracket (2) middle part and be provided with contiguous block (1), described contiguous block (1) is connected with floating bracket (2) by screw (6).

Floating clamp the most according to claim 1, it is characterised in that described floating bracket (2) two ends are provided with installation cavity (22), described installation cavity (22) upper and lower surface all offers the second through hole (21), and described floating claw (3) middle part is offered Having fourth hole (32), described bearing pin (5) is through the second through hole (21) and fourth hole (32) and by coordinating with nut (4) Floating claw (3) is arranged in installation cavity (22) by mode.

Floating clamp the most according to claim 1, it is characterised in that described floating bracket (2) middle part offers threeway Hole (23), described contiguous block (1) middle part offer the first through hole (11), described screw (6) sequentially pass through third through-hole (23) and Floating bracket (2) is arranged on contiguous block (1) by the first through hole (11).