CN202192468U

CN202192468U - Universal fixture for external circles of rough turning sliding yokes

Info

Publication number: CN202192468U
Application number: CN 201120278257
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: 2012-04-18
Anticipated expiration: 2021-08-02

Abstract

The utility model discloses a universal fixture for external circles of rough turning sliding yokes, which comprises a transition disc. A through slide way with a T-shaped cross section is disposed on a side surface of the transition disc along a bisector center line, two T-shaped sliders which are symmetric relative to the center of the transition disc are disposed in the slide way, each slider is connected with a detachable V-shaped block by an axial fastening screw, a limiting strip extending into the slide way is arranged on one side, which clings to the transition disc, of each V-shaped block, and a positioning mechanism is axially disposed in the center of the transition disc. The universal fixture is reasonable in design and simple in structure, overcomes the shortcomings of an existing fixture, meets the requirements of processing the external circles of various types of sliding yokes, improves part processing accuracy, is convenient and rapid in adjustment, can adjust the relative distance between the V-shaped blocks only by loosening the screws, and can achieve the purpose of changing processing varieties by means of replacing a positioning shaft and a centering disc, the number of fixtures is correspondingly reduced, the manufacturing cost and inventory of the fixtures are saved, production efficiency is improved, and effects are remarkable.

Description

Rough turn slip yoke cylindrical universal fixturing

Technical field

The utility model belongs to machine components processing and manufacturing technical field, is 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, adjustment, trial cut again after the replacing, 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, and percent defective is high.Because the difficulty of its assembling, dismounting, maintenance is all bigger, usually can delay manufacturing schedule, and cause production cost to improve.

The utility model content

The utility model 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 utility model adopts following technical scheme: rough turn slip yoke cylindrical universal fixturing, comprise transition disc, and 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 through 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.

Said 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.

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

Adopt technique scheme; Transition disc is connected through corresponding mode with lathe spindle, and V-block and detent mechanism play the effect with the fork ear end location of slip yoke jointly, and bar portion one end of slip yoke is held out against by lathe centre; Through 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 through 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 utility model 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, has 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 reduced anchor clamps quantity; Saved anchor clamps manufacturing expense and stock, improved production efficiency, effect is remarkable.

Description of drawings

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

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

The specific embodiment

As depicted in figs. 1 and 2; The rough turn slip yoke cylindrical universal fixturing of the utility model comprises transition disc 1, and 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 through axial trip bolt 5, and slide block 4 is connected with dismountable V-block 8 through axial trip bolt 7, and 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, and 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 provided with coaxial centering disk 13 with V-block 8 one ends closing on V-block 6; 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 is structure as a whole with centering disk 13 processing and manufacturing in advance.

When work is used, transition disc 1 is connected through 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 accomplished the location clamping process of slip yoke 15, just can start lathe and carry out batch machining.Through 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, is provided with the slide block about centrosymmetric two the T types of transition disc in the chute, and each slide block all is connected with dismountable V-block through 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: said 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.

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