CN206936412U

CN206936412U - A kind of adaptive location fixture

Info

Publication number: CN206936412U
Application number: CN201720834740.4U
Authority: CN
Inventors: 赖安业; 白辉明; 曹先强; 周泗进
Original assignee: FUJIAN CHENGGONG MACHINE Co Ltd
Current assignee: FUJIAN CHENGGONG MACHINE Co Ltd
Priority date: 2017-07-11
Filing date: 2017-07-11
Publication date: 2018-01-30
Anticipated expiration: 2027-07-11

Abstract

A kind of adaptive location fixture, including disk body, at least two clamp systems of the circle distribution on disk body, each clamp system includes the slide that can be moved radially along disk body, the swing arm being rotatably provided on slide, two gripping blocks being disposed on the inside of swing arm, two gripping blocks are distributed in the both sides of swing arm pivot center, the pivot center of swing arm and the diameter parallel of disk body are arranged, two gripping blocks are distributed in the both sides of swing arm pivot center, such two gripping block can adaptively clamp bearing outer ring, avoid clamping deformation, evade quenching distortion and waste product, and use six point floating structures of three clamp systems, can self-centering clamping workpiece, it is adapted to the thin workpiece kept away with blank surface less rule, swing arm can rotate to an angle around the shaft, so as to realize the function of automatic compensation error.

Description

A kind of adaptive location fixture

Technical field

It the utility model is related to a kind of positioning fixture, more particularly to a kind of chuck.

Background technology

Bearing is more complicated as a kind of high-precision fundamental parts, its processing technology.Bearing outer ring is quenched, tempering After heat treatment, intensity, hardness, wearability, fatigue strength and patience of the product that can improve etc..The rough turn process of bearing outer ring is adopted With soft car, it is rough turn before Bearing Quenching, typically requires that lathe has larger cutting power and moment of torsion, to realize higher gold Belong to resection rate and improve the high high efficiency of processing, the purpose of the soft pawl of car, when being exactly clamping workpiece, the inner surface diameter and workpiece of claw fill The diameter of folder portion point is identical, so that chuck jaw and work piece interface product are as big as possible, to increase its fastness, ensures coaxial Degree, in general Excircle machining clamping uses three melon locating clip clamping of workpieces, but this clamping mode occurs that clamping point can not divide Cloth can uniformly produce triangular deformation, can not ensure part geometry required precision.

The content of the invention

The purpose of this utility model is in view of the shortcomings of the prior art, there is provided can plant can compensate oneself of clamp error automatically Adapt to positioning fixture.

The purpose of this utility model is realized by following technical solution：

A kind of adaptive location fixture, including disk body, circle distribution at least two clamp systems on disk body, its feature exists In：Each clamp system include can along the slide that disk body moves radially, the swing arm being rotatably provided on slide, be disposed on Two gripping blocks on the inside of swing arm, two gripping blocks are distributed in the both sides of swing arm pivot center, the pivot center of swing arm and the axle of disk body Line is arranged in parallel.

Further, the middle part of swing arm is rotatably provided on the slide by pivotal axis, and two gripping blocks are symmetrically divided Cloth is in the both sides of the middle part of swing arm.

Further, the pivotal axis is formed on the slide, and the middle part of swing arm passes through formed with confession pivotal axis Axis hole, pivotal axis top are provided with the gland for preventing the swing arm abjection.

Further, spiral shell is passed through formed with the groove for installing the gripping block, the gripping block on the inside of the swing arm Bolt-lock is tight in a groove, and with the clamping face of the prominent swing arm medial surface.

Further, the gripping block is formed with coarse clamping face.

Further, including circle distribution three clamp systems on disk body.

Further, on the disk body formed with the chute radially extended, it is provided with the slide and chute is slided The dynamic sliding block coordinated.

The utility model has the advantages that：

Two gripping blocks are distributed in the both sides of swing arm pivot center, and such two gripping block can adaptively clamp bearing outer ring, keep away Exempt from clamping deformation, evade quenching distortion and waste product, and use six point floating structures of three clamp systems, can self-centering clamping work Part, it is adapted to the thin workpiece kept away with blank surface less rule, swing arm can rotate to an angle around the shaft, so as to realize automatic compensation The function of error.

Brief description of the drawings

The utility model is described in further detail below in conjunction with the accompanying drawings.

Fig. 1 is structural representation of the present utility model.

Fig. 2 is Fig. 1 A-A to sectional view.

The structural representation of Fig. 3 clamp systems.

Embodiment

Shown in reference picture 1, Fig. 2 and Fig. 3, a kind of adaptive location fixture, for clamping bearing outer ring 3, including disk body 1, Three clamp systems of the circle distribution on disk body 1, each clamp system include can along the slide 21 that disk body moves radially, can turn The dynamic swing arm 22 being arranged on slide 21, two gripping blocks 23 for being disposed on the inner side of swing arm 22, two gripping blocks 23 are symmetrical In the both sides of the pivot center of swing arm 22, the pivot center of swing arm 22 is arranged with the diameter parallel of disk body 1；Formed with edge on disk body 1 Its chute 11 radially extended, the sliding block 25 being slidably matched with chute 11 is provided with slide 21.

The middle part of swing arm 22 is rotatably provided on slide 21 by pivotal axis 211, and two gripping blocks 23 are symmetrically distributed in swing arm The both sides at 22 middle parts, pivotal axis 211 are formed on slide 21, and the middle part of swing arm 22 is formed with the axis hole passed through for pivotal axis 211, pivot The top of rotating shaft 211 is provided with the gland 24 for preventing that swing arm 22 from deviating from.

The inner side of swing arm 22 clamps, 23 are locked at groove by bolt formed with the groove 221 for installing gripping block 23 In 221, and with the clamping face of the prominent medial surface of swing arm 22, gripping block 23 is formed with coarse clamping face.

Using six point floating structures, can self-centering clamping workpiece, be adapted to thin keep away the workpiece less regular with blank surface, pendulum Arm 22 can rotate to an angle around the shaft, so as to realize the function of automatic compensation error.

It is described above, preferred embodiment only of the present utility model, therefore the utility model implementation can not be limited with this Scope, i.e., the equivalent changes and modifications made according to present utility model application the scope of the claims and description all should still belong to this In the range of utility model patent is covered.

Claims

1. a kind of adaptive location fixture, including disk body, circle distribution at least two clamp systems on disk body, its feature exists In：Each clamp system include can along the slide that disk body moves radially, the swing arm being rotatably provided on slide, be disposed on Two gripping blocks on the inside of swing arm, two gripping blocks are distributed in the both sides of swing arm pivot center, the pivot center of swing arm and the axle of disk body Line is arranged in parallel.

A kind of 2. adaptive location fixture according to claim 1, it is characterised in that：The middle part of swing arm passes through pivotal axis It is rotatably provided on the slide, two gripping blocks are symmetrically distributed in the both sides of the middle part of swing arm.

A kind of 3. adaptive location fixture according to claim 2, it is characterised in that：The pivotal axis is formed in the cunning On seat, for the middle part of swing arm formed with the axis hole passed through for pivotal axis, pivotal axis top, which is provided with, prevents the swing arm abjection Gland.

A kind of 4. adaptive location fixture according to claim 1 or 2 or 3, it is characterised in that：Formed on the inside of the swing arm There is the groove for installing the gripping block, the gripping block is locked in a groove by bolt, and with the prominent swing arm The clamping face of medial surface.

A kind of 5. adaptive location fixture according to claim 1 or 2 or 3, it is characterised in that：The gripping block formed with Coarse clamping face.

A kind of 6. adaptive location fixture according to claim 1 or 2 or 3, it is characterised in that：Including circle distribution in disk Three clamp systems on body.

A kind of 7. adaptive location fixture according to claim 1 or 2 or 3, it is characterised in that：On the disk body formed with The chute radially extended, the sliding block coordinated with slide is provided with the slide.