CN102294613A

CN102294613A - Universal fixture of roughly turned sliding fork excircle

Info

Publication number: CN102294613A
Application number: CN2011102197275A
Authority: CN
Inventors: 陈云升; 王文; 马喜岭
Original assignee: Xuchang Yuandong Drive Shaft Co Ltd
Current assignee: Xuchang Yuandong Drive Shaft Co Ltd
Priority date: 2011-08-02
Filing date: 2011-08-02
Publication date: 2011-12-28
Anticipated expiration: 2031-08-02
Also published as: CN102294613B

Abstract

The invention discloses a universal fixture of a roughly turned sliding fork excircle, which comprises a transition plate, wherein a through sliding groove of which the cross section is T-shaped is formed on one side face of the transition plate along the equally dividing central line; two T-shaped slide blocks which are symmetrical around the centre of the transition plate are arranged in the sliding groove; each slide block is connected with a detachable V-shaped block through an axial fastening screw; a limit strip extending into the sliding groove is arranged on one side, close to the transition plate, of the V-shaped block; and a positioning mechanism is axially arranged in the centre of the transition plate. The universer fixture has the advantages that: the design is reasonable, the structure is simple, the shortcomings of a traditional fixture are overcome, the requirements of excircle processing of various sliding forks are met, the processing precision of parts is improved, convenience in quick adjustment is realized, the relative distance of the V-shaped blocks can be adjusted only by loosening screws, the aim of replacing processes varieties can be fulfilled by replacing a positioning shaft and a centring plate, the number of fixtures is correspondingly reduced, the manufacturing cost and inventory of the fixtures are saved, the production efficiency is improved, and the effect is obvious.

Description

Rough turn slip yoke cylindrical universal fixturing

Technical field

The invention belongs to machine components processing and manufacturing technical field, be specifically related to a kind of rough turn slip yoke cylindrical universal fixturing.

Background technology

Slip yoke is a strength member of vehicle driving shaft assembly, and the main formation free-sliding spline pair that cooperates with spindle nose or slip shaft yoke compensates the length variations of driving-shaft assembly, and realizes the moment of torsion transmission simultaneously.Existing glide is pitched rough turn cylindrical special fixture, and main what adopt is that all-in-one-piece V-block cooperates centering disk to realize the location of slip yoke.The V-block of this anchor clamps is nonadjustable monoblock types, in the middle of reality is used, because slip yoke is wide in variety, need often to change monoblock type V-block and centering disk, adjust again after the replacing, trial cut, precision is difficult for guaranteeing, sometimes per tour is inferior all will change adjustment once, quite loaded down with trivial details time-consuming.Add that operative employee's technical merit is irregular to differ, the semi-finished product dimensional uniformity after the processing is poor, causes postorder to be difficult to compensation, percent defective height.Because the difficulty of its assembling, dismounting, maintenance is all bigger, usually can delay manufacturing schedule, and cause production cost to improve.

Summary of the invention

The present invention is in order to solve weak point of the prior art, provide a kind of existing high orientation precision, again be convenient for changing adjustment, time saving and energy saving, improved operating efficiency, and the rough turn slip yoke cylindrical universal fixturing that fully reduces production costs.

For solving the problems of the technologies described above, the present invention adopts following technical scheme: rough turn slip yoke cylindrical universal fixturing, comprise transition disc, transition disc one side is along dividing the chute that center line offers perforation and cross section is the T type equally, be provided with slide block in the chute about centrosymmetric two the T types of transition disc, each slide block all is connected with dismountable V-block by axial trip bolt, and V-block is pressed close to transition disc one side and is provided with the positive stop strip that puts in the chute, and transition disc central authorities are axially arranged with detent mechanism.

Described detent mechanism comprises the lining that axially is located in the transition disc centre bore, slide in the lining and be provided with locating shaft, locating shaft is provided with coaxial centering disk closing on V-block one end, and the centering disk outside has tapering, is arranged with the compression spring between lining and centering disk on the locating shaft.

Described chute two ends are equipped with a stop screw that is screwed onto on the transition disc.

Adopt technique scheme, transition disc is connected by corresponding mode with lathe spindle, V-block and detent mechanism play the effect with the fork ear end location of slip yoke jointly, bar portion one end of slip yoke is held out against by lathe centre, by regulating trip bolt V-block and slide block are moved along chute, thereby realize the adjustment of distance size between two V-blocks, change the detent mechanism that varies in size simultaneously, reach the purpose of the slip yoke that uses same anchor clamps processing different model.Positive stop strip plays V-block good position-limiting action when chute moves; In the mesopore of transition disc, install lining additional, improve the positioning accuracy of centering disk by the method for resleeve more; The centering disk outside has tapering, and this and the fork ear end medial roof interference fit use of slip yoke play the effect that slip yoke is accurately located at the center; The compression spring plays centering disk is cooperated more firm effect with the slip yoke roof pressure; Anchor clamps are when rotating at a high speed, and stop screw plays and prevents that V-block is in use just in case loosening throwing away and cause the generation of casualty accident; The present invention is reasonable in design, simple in structure, has overcome the drawback of existing anchor clamps, has adapted to the requirement of many kinds slip yoke cylindrical processing, improved part processing precision, easy to adjust quick, only need loosening screw, just can adjust the relative distance of V-block, change locating shaft and centering disk simultaneously, can reach the purpose of changing processing variety, correspondingly reduce anchor clamps quantity, save anchor clamps manufacturing expense and stock, improved production efficiency, effect is remarkable.

Description of drawings

Fig. 1 is a structural representation of the present invention;

Fig. 2 is that the central A of Fig. 1 is to view.

The specific embodiment

As depicted in figs. 1 and 2, rough turn slip yoke cylindrical universal fixturing of the present invention, comprise transition disc 1, transition disc 1 one sides are along dividing the chute 2 that center line offers perforation and cross section is the T type equally, be provided with slide block 3 and slide block 4 in the chute 2 about transition disc 1 centrosymmetric T type, slide block 3 is connected with dismountable V-block 6 by axial trip bolt 5, slide block 4 is connected with dismountable V-block 8 by axial trip bolt 7, V-block 6 and V-block 8 are provided with the positive stop strip 9 that puts in the chute 2 pressing close to transition disc 1 one sides, certainly, positive stop strip 9 can be made into integration with V-block 6 and V-block 8, chute 2 two ends are equipped with a stop screw 10 that is screwed onto on the transition disc 1, and transition disc 1 central authorities are axially arranged with detent mechanism.Detent mechanism comprises the lining 11 that axially is located in transition disc 1 centre bore, slide in the lining 11 and be provided with locating shaft 12, locating shaft 12 is closing on V-block 6 and V-block 8 one ends are provided with coaxial centering disk 13, centering disk 13 outsides have tapering, are arranged with the compression spring 14 between lining 11 and centering disk 13 on the locating shaft 12.Locating shaft 12 and centering disk 13 processing and manufacturing in advance are structure as a whole.

When work is used, transition disc 1 is connected by corresponding mode with lathe spindle, the operative employee hands slip yoke 15, make its two forks ear put into V-block 6 and V-block 8 respectively, start bar portion one end that tail stock top 16 holds out against slip yoke 15, make the slip yoke 15 passive centering disks 13 of pressing to, like this, just finished the location clamping process of slip yoke 15, just can start lathe and carry out batch machining.By regulating trip bolt 5 and trip bolt 7, V-block 6 and slide block 3, V-block 8 and slide block 4 are moved along chute 2, thereby realize the adjustment of distance size between V-block 6 and the V-block 8, change the size of locating shaft 12 and centering disk 13 simultaneously, reach the purpose of the slip yoke that uses same anchor clamps processing different model.

Claims

1. rough turn slip yoke cylindrical universal fixturing, it is characterized in that: comprise transition disc, transition disc one side offers perforation along center line and cross section is the chute of T type, be provided with slide block in the chute about centrosymmetric two the T types of transition disc, each slide block all is connected with dismountable V-block by axial trip bolt, V-block is pressed close to transition disc one side and is provided with the positive stop strip that puts in the chute, and transition disc central authorities are axially arranged with detent mechanism.

2. rough turn slip yoke cylindrical universal fixturing according to claim 1, it is characterized in that: described detent mechanism comprises the lining that axially is located in the transition disc centre bore, slide in the lining and be provided with locating shaft, locating shaft is provided with coaxial centering disk closing on V-block one end, the centering disk outside has tapering, is arranged with the compression spring between lining and centering disk on the locating shaft.

3. rough turn slip yoke cylindrical universal fixturing according to claim 1 and 2, it is characterized in that: described chute two ends are equipped with a stop screw that is screwed onto on the transition disc.