CN205928350U - Clamping fixture - Google Patents

Abstract

The utility model discloses a clamping fixture, top comprises the last anchor clamps body and the last connecting block of a body structure, go up anchor clamps body lower extreme center and open the V font groove I that has wounded in the battle key, the part comprises the lower anchor clamps body of a body structure, lower connecting block and ring flange down, can form after down anchor clamps body upper end center is opened and is had V font groove wounded in the battle key and last anchor clamps body I together one with constant speed drive shaft universal joint on the V font groove II of spline assorted square through hole, during the use, fix ring flange and lower anchor clamps body on the equipment tip through bolt I, upper and lower connecting block one end pass through the connecting axle articulated upper and lower screw hole has been opened respectively to the other end together, during the use, bolt II is together fixed with upper and lower connecting block through upper and lower screw hole. Use the utility model discloses press from both sides tight constant speed drive shaft universal joint spline, shortened the time of workpiece setting and dismantlement greatly, improved efficiency, reduced experimentation cost and work piece development period, prolonged life.

Description

A kind of clamping device

Technical field

This utility model is related to a kind of clamping device of the strength test being applied to constant velocity driving shaft.

Background technology

In the development process of car constant velocity cardan joint, constant velocity driving shaft is made a strength test to verify constant velocity driving shaft And whether the part performance such as the universal joint of constant velocity driving shaft meets specification intra-company's design or that client gives, during this Carry out lot of experiments checking.Verification experimental verification process is passed through the inside and outside end constant velocity cardan joint spline of constant velocity driving shaft respectively The clamping device of constant velocity driving shaft universal joint spline fixes to clamp on the two ends of testing equipment, and equipment one end clamping constant speed drives The sliding-end of axle（Namely engine end）Spline, one end clamps the fixing end of constant velocity driving shaft（Namely road wheel end）Spline, Ensure in whole process of the test, two end segment are in clamping connection status, the moment of torsion of such equipment output all the time with equipment two ends Value just effectively can be delivered to outer end by the inner of constant velocity driving shaft.

Existing clamping device is made up of the ring flange of upper and lower two parts and lower part one, as shown in figure 1, upper and lower Two screwed holes are opened at two-part two ends respectively, are clamped by four M16 bolts, bolt can wear and tear using after a period of time, Rundown process easily lost efficacy, or bolt broke in screwed hole, was not easily taken out, or even sometimes the screw thread on fixture was damaged Bad.The inequality if four bolts are exerted oneself, can cause fixture to rupture at screwed hole, so that whole fixture is scrapped, must be again Feed intake making fixture, causes the increase of cost, so that the construction cycle is lengthened.

Utility model content

The purpose of this utility model is exactly to solve existing clamping device in installation and removal exemplar inefficiency, bolt and folder Situations such as clamper is easily damaged, provides a kind of clamping device, using this fixture by the inside and outside end constant velocity universal of constant velocity driving shaft Section spline fixes to clamp on the two ends of testing equipment, substantially reduces the time of workpiece installation and removal, improves efficiency, fall Low experimentation cost and workpiece construction cycle, extend service life.

For achieving the above object, technical solution of the present utility model is：A kind of clamping device, it includes

Upper part, described upper part is made up of the upper fixture body of integrative-structure and upper contiguous block；This position of upper fixture In the lower end center of upper contiguous block, its lower end center has the V-shaped groove I with spline；

Lower part, described lower part is made up of the lower clamp body of integrative-structure, lower connecting block and ring flange；Lower clamp Body is located at the upper end center of lower connecting block, and its upper end center has the V-shaped groove I with spline and upper fixture body and is combined in one Can be formed after rising one with constant velocity driving shaft universal joint on the V-shaped groove II of square through hole that matches of spline；On ring flange Screwed hole match with testing equipment end thread hole, open in the lower clamp body position relative with ring flange lower end screwed hole There is the screwed hole I being connected and mating with ring flange lower end screwed hole；During use, by bolt I by ring flange with lower clamp originally Body is fixed on equipment end；

Described upper and lower contiguous block one end is hinged by connecting shaft, and the other end has upper and lower screwed hole, During use, upper and lower contiguous block is fixed together by bolt II by upper and lower screwed hole.

Bolt II described above adopts M22 bolt.The clamping that fixing intensity conforms exactly to clamping device requires.

Upper and lower contiguous block one end of the present utility model is hinged by connecting shaft, and the other end is clamped solid by bolt II Fixed, during use, as long as constant velocity driving shaft universal joint spline is placed in the V-shaped groove II of lower clamp body, cover lower clamp originally Body, tightening bolt II can be fixedly clamped constant velocity driving shaft, and after the completion of test, loosering a bolt II can take constant velocity driving shaft Under, substantially reduce the time of workpiece installation and removal, improve efficiency, reduce experimentation cost and workpiece construction cycle, prolong Grow service life.This utility model does not change the screwed hole size being connected with testing equipment and size, existing without changing Testing equipment connection member.

Brief description

Fig. 1 is the structural representation of clamping device of the prior art；

The structural representation that Fig. 2 this utility model upper and lower part is combined；

The separate structural representation in Fig. 3 this utility model upper and lower part；

Fig. 4 front view of the present utility model；

Fig. 5 left view of the present utility model；

Fig. 6 top view of the present utility model.

Specific embodiment

Below in conjunction with the accompanying drawings and be embodied as case this utility model is further described.

As shown in Fig. 2, Fig. 3, Fig. 4, Fig. 5 and Fig. 6, the present embodiment includes upper and bottom section.Described upper part by The upper fixture body 2 of integrative-structure and upper contiguous block 1 form.Upper fixture body 2 is located at the lower end center of upper contiguous block 1, under it End center has the V-shaped groove I 3 with spline.Described lower part is by the lower clamp body 7 of integrative-structure, lower connecting block 6 and Ring flange 10 forms.Lower clamp body 7 is located at the upper end center of lower connecting block 6, and its upper end center has with spline and upper folder Tool body 2 V-shaped groove I 3 be combined after can be formed one with constant velocity driving shaft universal joint on spline match square The V-shaped groove II 8 of through hole.Screwed hole 11 on ring flange 10 is matched with testing equipment end thread hole, in lower clamp body 7 positions relative with ring flange lower end screwed hole 11 have the screwed hole I being connected and mating with ring flange lower end screwed hole 11 9.During use, by bolt I, ring flange 10 and lower clamp body 7 are fixed on equipment end.Upper and lower contiguous block 1,6 one end Hinged by connecting shaft 5, the other end has upper and lower screwed hole 4,12, and during use, bolt II passes through upper and lower spiral shell Upper and lower contiguous block 1,6 is fixed together by pit 4,12.

It is further preferred that described bolt II adopts M22 bolt；The clamping that fixing intensity conforms exactly to clamping device will Ask, both reached clamping and required, but cost-effective.

Embodiment described above be only preferably with example shape, not in order to limit this utility model, all in this utility model Spirit and principle within, any modification, equivalent substitution and improvement made etc., should be included in protection model of the present utility model Within enclosing.

Claims (2)

1. a kind of clamping device it is characterised in that：It includes

Upper part, described upper part is made up of the upper fixture body of integrative-structure and upper contiguous block；Upper fixture body is located at upper The lower end center of contiguous block, its lower end center has the V-shaped groove I with spline；

Lower part, described lower part is made up of the lower clamp body of integrative-structure, lower connecting block and ring flange；Lower clamp body Positioned at the upper end center of lower connecting block, its upper end center has after the V-shaped groove I with spline and upper fixture body is combined Can be formed one with constant velocity driving shaft universal joint on the V-shaped groove II of square through hole that matches of spline；Spiral shell on ring flange Pit is matched with testing equipment end thread hole, the lower clamp body position relative with ring flange lower end screwed hole have with The screwed hole I that ring flange lower end screwed hole is connected and mates；During use, by bolt I, ring flange is solid with lower clamp body It is scheduled on equipment end；

Described upper and lower contiguous block one end is hinged by connecting shaft, and the other end has upper and lower screwed hole, uses When, upper and lower contiguous block is fixed together by bolt II by upper and lower screwed hole.

2. clamping device according to claim 1 it is characterised in that：Described bolt II adopts M22 bolt.