CN209532312U - A kind of bidentate flexibility clamp of detection positioning - Google Patents

Abstract

A kind of bidentate flexibility clamp of detection positioning provided by the utility model, it include: clamping fixture seat, described clamping fixture seat one end is equipped with numerical control rotating platform, workpiece centering support block is housed on the output end of the numerical control rotating platform, for driving workpiece centering support block to rotate, tail end pressing device is housed, the tail end pressing device is for clamping workpiece on the workpiece centering support block；The clamping fixture seat other end is equipped with workbench, and the bench top end face is equipped with limiting slot, is equipped with multiple compact heaps in the limiting slot；It is further fixed on Pneumatic slid platform between the workbench and numerical control rotating platform, measurement module is housed, Pneumatic slid platform is for driving measurement module mobile on the Pneumatic slid platform；The measurement module side is fixed with measuring head adjustment block；The measuring head of face workpiece rack gear is housed in the measuring head adjustment block.The numerical control rotating platform offset angle rotational positioning function of the utility model cooperates Pneumatic slid platform, convenient for the size of the rack gear of the different directions of detection.

Description

A kind of bidentate flexibility clamp of detection positioning

Technical field

The utility model relates to auto-parts detecting tool fields, and in particular to a kind of bidentate flexibility mill of detection positioning Cut fixture.

Background technique

The power-assisted mode of current automobile steering system is all traditional steering column (input shaft end) power-assisted, this kind of power-assisted Mode cannot provide excessive active force, and application range is limited to middle-size and small-size car.And the novel power-assisted mode of existing one kind is adopted With the rack gear of two sections of teeth, power-assisted is acted directly on the rack gear of the bidentate (output shaft end), and this mode can provide very big work Firmly, application range can cover large and medium-sized vehicle, such as large size SUV class.But current automobile steering rack is all monodentate area, with Matched fixture also can only clamping monodentate area rack gear, be unable to satisfy the processing of novel bidentate steering rack.

In the prior art, as patent document 1:CN201510116277.5 " a kind of electric steering gear rack gear plus Work method " patent, which provides a kind of processing method of electric steering gear rack gear.In its disclosure of specification , rack gear under the drive of servo rotary end surface positioning fixture as datum level rotate, with drive end flank of tooth detector and from Moved end flank of tooth detector respectively detects the flank of tooth and detection OPD value at both ends, and system calculates practical angle size automatically and OPD is bent Line carries out online 100% detection, completes the combination grinding of driving tooth and driven tooth.The servo rotary end surface positioning fixture can only The rack gear in clamping monodentate area, is unable to satisfy the processing of novel bidentate steering rack.

Summary of the invention

(1) technical problems to be solved

The purpose of the utility model is to provide a kind of bidentate flexibility clamps of detection positioning, by the way that digital control rotating is arranged Platform, workbench and moveable measurement module, numerical control rotating platform offset angle rotational positioning function cooperate Pneumatic slid platform, convenient for inspection Survey the size of the rack gear of different directions；Solves the defect that existing detection positioning fixture is unable to satisfy the rack gear in bidentate area.

(2) technical solution

In order to solve the above-mentioned technical problem, the bidentate flexibility clamp of a kind of detection positioning provided by the utility model, It include: clamping fixture seat, described clamping fixture seat one end is equipped with numerical control rotating platform, and workpiece centering branch is housed on the output end of the numerical control rotating platform Bracer is equipped with tail end pressing device, the tail end for driving workpiece centering support block to rotate on the workpiece centering support block Pressing device is for clamping workpiece；The clamping fixture seat other end is equipped with workbench, and the bench top end face is equipped with limiting slot, Multiple compact heaps are installed in the limiting slot；Pneumatic slid platform, the gas are further fixed between the workbench and numerical control rotating platform Measurement module is housed, Pneumatic slid platform is for driving measurement module mobile on dynamic slide unit；The measurement module side is fixed with measurement Head adjustment block；The measuring head of face workpiece rack gear is housed in the measuring head adjustment block.The fixture of the utility model is completely new It is laid out with automatic measurement and the flexible structure of automatic positioning, numerical control rotating platform offset angle rotational positioning function cooperates aerodynamic slide Platform, convenient for the size of the rack gear of the different directions of detection；Station has automatic detection angles and is revolved by numerical control rotating platform offset angle Turn positioning function, it is whole to guarantee that steering rack measures back spin modulation by accurate assembly and digital control system control, is measuring It is also equipped with adjustment function on device, to meet the measurement demand of different workpieces, realizes the purpose quickly remodeled, fundamentally reduces It fast can also greatly shorten the time of remodeling to the investment of clamp fixture, and because remodeling, improve production efficiency, reduce production Cost.

Preferably, the tail end pressing device includes a pair of of compression clamp arm and fixed arm, and the compression clamp arm includes being scheduled on The hydraulic station and collet of workpiece centering support block, the hydraulic station is for pushing collet opposite or counter motion；The pressing clip Arm and fixed arm are arranged in opposite directions.The utility model pushes collet movement using hydraulic station, convenient for accurate control clamping force.

Preferably, it is equipped with support chip in the limiting slot, fixed block, the compact heap installation are fixed on the support chip Between fixed block and workpiece.The utility model uses support chip and fixed block, convenient for using lesser compact heap, convenient for blocking Or remove compact heap.

Preferably, the bidentate flexibility clamp of the detection positioning further includes axial top-fastener, the axial direction top-fastener For pushing workpiece axially to be held out against.The utility model pushes up firm workpiece using axial top-fastener, limits its axial movement, protects Detection accuracy is demonstrate,proved.

Preferably, the axial top-fastener includes the body of rod and the thimble head positioned at body of rod top, and the body of rod is equipped with folder Hold portion.The body of rod of the utility model is equipped with clamping part and carries out holding out against operation convenient for clamping axial top-fastener.

(3) beneficial effect

A kind of bidentate flexibility clamp of detection positioning provided by the utility model, has the advantage that

1, the fixture of the utility model is completely new with automatic measurement and the flexible structure of automatic positioning layout, digital control rotating Platform offset angle rotational positioning function, convenient for the size of the rack gear of the different directions of detection；Station has automatic detection angles and passes through Numerical control rotating platform offset angle rotational positioning function guarantees that steering rack measures by accurate assembly and digital control system control Back spin modulation is whole, and adjustment function is also equipped in measuring device, to meet the measurement demand of different workpieces, what realization was quickly remodeled Purpose fundamentally reduces the investment to clamp fixture, and fast can also greatly shorten the time of remodeling because remodeling, and improves Production efficiency reduces production cost.

Detailed description of the invention

Fig. 1 is the bidentate flexibility clamp structure chart of the detection positioning of the embodiments of the present invention；

Fig. 2 is that the bidentate flexibility clamp of the detection positioning of Fig. 1 uses axial top-fastener schematic diagram.

1, clamping fixture seat, 2, compact heap, 3, axial top-fastener, 4, workpiece, 5, Pneumatic slid platform, 6, measurement module, 7, measuring head Adjustment block, 8, measuring head, 9, tail end pressing device, 10, workpiece centering support block, 11, numerical control rotating platform, 12, workbench, 13, limit Position slot, 14, support chip, 15, fixed block, 16, compression clamp arm, 17, hydraulic station, 18, collet, 19, the body of rod, 20, thimble head, 21, Clamping part；22, fixed arm.

Specific embodiment

With reference to the accompanying drawings and examples, specific embodiment of the present utility model is described in further detail.Below Example is not intended to limit the scope of the present invention for illustrating the utility model.

In the description of the present invention, unless otherwise indicated, the meaning of " plurality " is two or more；Term The orientation of the instructions such as "upper", "lower", "left", "right", "inner", "outside", " front end ", " rear end ", " head ", " tail portion " or position are closed System is to be based on the orientation or positional relationship shown in the drawings, and is merely for convenience of describing the present invention and simplifying the description, rather than The device or element of indication or suggestion meaning must have a particular orientation, be constructed and operated in a specific orientation, therefore cannot It is construed as a limitation of the present invention.In the description of the present invention, it should be noted that unless otherwise specific regulation And restriction, term " connected ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, Or it is integrally connected；It can be mechanical connection, be connected directly, it can also be indirectly connected through an intermediary.For this field For those of ordinary skill, the concrete meaning of above-mentioned term in the present invention can be understood with concrete condition.

Embodiment 1

As shown in Figure 1 and Figure 2, a kind of bidentate flexibility clamp of detection positioning provided by the utility model, comprising: folder Has seat 1, described clamping fixture seat one end is equipped with numerical control rotating platform 11, workpiece centering support block is housed on the output end of the numerical control rotating platform 10, for driving workpiece centering support block to rotate, tail end pressing device 9, the tail end are housed on the workpiece centering support block Pressing device is for clamping workpiece；The clamping fixture seat other end is equipped with workbench 12, and the bench top end face is equipped with limit Slot 13 is equipped with multiple compact heaps 2 in the limiting slot；It is equipped with support chip 14 in the limiting slot, is fixed on the support chip There is fixed block 15, the compact heap is mounted between fixed block and workpiece.It is further fixed between the workbench and numerical control rotating platform Pneumatic slid platform 5 is equipped with measurement module 6 on the Pneumatic slid platform, and Pneumatic slid platform is for driving measurement module mobile；The measurement mould Block side is fixed with measuring head adjustment block 7；The measuring head 8 of 4 rack gear of face workpiece is housed in the measuring head adjustment block.The tail Hold pressing device include it is a pair of compress clamp arm 16 and fixed arm, the clamp arm that compresses includes be scheduled on workpiece centering support block hydraulic It stands 17 and collet 18, the hydraulic station is for pushing collet opposite or counter motion；It compresses clamp arm and fixed arm 22 is arranged in opposite directions. The bidentate flexibility clamp of the detection positioning further includes axial top-fastener 3, and the axial direction top-fastener is for pushing workpiece spindle To being held out against.The axial direction top-fastener includes the body of rod 19 and the thimble head 20 positioned at body of rod top, and the body of rod is equipped with clamping Portion 21.

When the present embodiment is implemented, workpiece is placed on clamping fixture seat, is carried out by axial top-fastener 3 to each station workpiece axial Hold out against, prevent workpiece play influence measurement and workpiece axial error, compact heap by hydraulic station pre-pressing function carry out precompressed it is (low Pressure pre-tightens, and limits the location of workpiece but is unlikely to clamp), it drives tail end pressing device and workpiece centering support block is combined to carry out workpiece Centering and clamping, Pneumatic slid platform drive measurement module slowly close to workpiece toothed section, touched using the double measuring heads adjusted The tooth top plane for touching workpiece, measures the practical placement angle of current workpiece, is carried out by the measurement compensation software of dedicated custom The rotation angle for finally needing to compensate is calculated, angle rotation compensation is then carried out by numerical control rotating platform, finally control compresses Block workpiece pressing.

The various embodiments described above are merely to illustrate the utility model, wherein the structure of each component, connection type etc. are all can be with It is varied, all equivalents and improvement carried out on the basis of technical solutions of the utility model should not exclude Except the protection scope of the utility model.

Claims (5)

1. a kind of bidentate flexibility clamp of detection positioning characterized by comprising clamping fixture seat, clamping fixture seat one end dress There is numerical control rotating platform, workpiece centering support block is housed on the output end of the numerical control rotating platform, for driving workpiece centering support block It rotates, tail end pressing device is housed, the tail end pressing device is for clamping workpiece on the workpiece centering support block；The folder Have the seat other end and workbench is housed, the bench top end face is equipped with limiting slot, is equipped with multiple compressions in the limiting slot Block；It is further fixed on Pneumatic slid platform between the workbench and numerical control rotating platform, measurement module, aerodynamic slide are housed on the Pneumatic slid platform Platform is for driving measurement module mobile；The measurement module side is fixed with measuring head adjustment block；In the measuring head adjustment block Measuring head equipped with face workpiece rack gear.

2. the bidentate flexibility clamp of detection positioning as described in claim 1, which is characterized in that the tail end pressing device Including compressing clamp arm and fixed arm, the compression clamp arm includes the hydraulic station and collet for being scheduled on workpiece centering support block, the liquid Pressure station is for pushing collet opposite or counter motion；The compression clamp arm and fixed arm are arranged in opposite directions.

3. the bidentate flexibility clamp of detection positioning as described in claim 1, which is characterized in that be equipped in the limiting slot Support chip is fixed with fixed block on the support chip, and the compact heap is mounted between fixed block and workpiece.

4. the bidentate flexibility clamp of the detection positioning as described in claims 1 or 2 or 3, which is characterized in that further include axial direction Top-fastener, the axial direction top-fastener is for pushing workpiece axially to be held out against.

5. the bidentate flexibility clamp of detection positioning as claimed in claim 4, which is characterized in that the axial direction top-fastener packet The body of rod and the thimble head positioned at body of rod top are included, the body of rod is equipped with clamping part.