CN1095006A

CN1095006A - Cross keyway series combined fixture

Info

Publication number: CN1095006A
Application number: CN 93105534
Authority: CN
Inventors: 徐长祥
Original assignee: Individual
Current assignee: Individual
Priority date: 1993-05-12
Filing date: 1993-05-12
Publication date: 1994-11-16

Abstract

A kind of cross keyway series combined fixture belongs to the jig field.Accuracy, rapidity, rigidity and the adjustability that can be used for providing a kind of interelement location and be fastenedly connected comprehensively reaches the built-up jig of optimum efficiency.It is characterized in that the positioning link between composition element is a cross key, this cross key is made up of a flat key, groove key and a secondary trip bolt and spring washer.Described composition element is the part of various difformities and size, has the T-slot and the shallow keyway of 90 ° of right-angled intersections of a pair of one-tenth on it at least, is used to admit described cross key, and does not lay but whole laying several times its location.

Description

Cross keyway series combined fixture

The invention belongs to the jig field, more particularly, the groove that relates to a kind of cross key that is used for being located by connecting between combination-fixture component and use this cross key to be located by connecting is a built-up jig.

The built-up jig of prior art by accuracy, rapidity and the rigidity that its interelement is located by connecting, can be divided into four developing stage, and it is Fig. 1 to Fig. 4 in proper order.Fig. 1 is that the Chinese aeronautical technology standard cell of prior art is location between combination-fixture component and the device that is fastenedly connected, Fig. 2 is that preceding DRP (sees sample, unknown its patent No.) groove is location between combination-fixture component and the device that is fastenedly connected, Fig. 3 is that the Chinese aeronautical technology gauge orifice of prior art is a kind of device of locating and being fastenedly connected between combination-fixture component, and Fig. 4 is that the V-shaped groove of former Soviet Union's patent (CN86107976A) is location between combination-fixture component and the device that is fastenedly connected.With regard to the adjustability of the matching pair that is located by connecting, the T-slot 11 of Fig. 1 and Fig. 2 is good with the parallel naturally mobile adjustability of key 10 matching pairs, promptly is convenient to along T-slot translation adjustment; The hole 13 of Fig. 3 is good with the adjustability of rotation naturally of pin 12 matching pairs, promptly is convenient to adjust around the axis rotation in hole; The V-shaped groove 15 of Fig. 4 is with the natural translation adjustability of pin 14 matching pairs and the rotation adjustability is all bad naturally.Though the natural translation adjustability of above-mentioned T-slot key matching pair is good, for the right-angled intersection T-slot key matching pair of Fig. 1 and Fig. 2, its adjustability has been suffered interruption at the cross junction place, promptly can not carry out continuous translation adjustment in crossing.In other words, in the prior art of Fig. 1 to Fig. 4, none technology has the natural translation adjustability of T-slot key matching pair fully.

According to Hooke's law, fastening bolt is long more, and stretcher strain is also just big more when being decided power.Therefore, fastening bolt is short more, and its rigidity that is fastenedly connected is also just good more.Having only the present invention and preceding DRP (see figure 2) could implement lag bolt is fastenedly connected, all the other prior aries, the composition element that no matter connects is long and short, all can only use a bolt to lead to the end, so with regard to being fastenedly connected rigidity, the present invention and preceding DRP can reach best level.Yet, before DRP the location and fasteningly finish by the fastening key one of T shape, inconvenience is implemented location, no gap and is cooperated, and the present invention can implement not have the gap cooperation because of cross key, so with regard to the location was connected rigidity with fastening two kinds with regard to, the present invention can obtain optimum efficiency.

The prior art of Fig. 3 and Fig. 4 does not possess T-slot, though and the prior art of Fig. 1 and Fig. 2 possesses T-slot, interrupt at the cross junction place and cause can not be along its translation adjustment continuously naturally; So have only the present invention to have the complete translation adjustability of T-slot key matching pair.

With regard to being located by connecting, have only the setting element 14 of Fig. 4 and setting element of the present invention as a whole part once lay, the keeper of all the other schemes is not whole one, need repeatedly lay operation and influences its assembling rapidity; With regard to being fastenedly connected, Fig. 2 and fastening bolt of the present invention only need turn and lessly just can carry out the dismounting of T shape fastener and finish fastening operation, and all the other schemes all need thread engagement all to be screwed into and to back-out and can implement fastening operation and disassembling section.Therefore, with regard to location between composition element and the rapidity that is fastenedly connected, have only effect of the present invention better.

With regard to the accuracy that is located by connecting, the positioning spline of Fig. 1 cooperates contact-making surface little and unstable, and the positioning spline of Fig. 2 is combined with the gap and instability, and the contact of location of the present invention matching pair is all comparatively stable, thereby has accuracy preferably.

The purpose of this invention is to provide a kind of built-up jig, make the accuracy that is located by connecting, rapidity, rigidity and parallel mobile adjustability between its composition element all be better than prior art.

In order to achieve the above object, the present invention is a kind of cross keyway series combined fixture, and the positioning link between its composition element is a cross key.Described cross key is made up of a flat key, groove key and a secondary trip bolt and spring washer; Described flat key is the four bank or ridge that there is a screw at the center, and described groove key is that the center has a screwing through hole and four bank or ridge that have the groove of the described flat key of an attaching; Described flat key and groove key fuse by described trip bolt and spring washer.Described composition element is the part of various different sizes and shape, has the T-slot and the shallow keyway of 90 ° of right-angled intersections of a pair of one-tenth on it at least, is used to admit described cross key.Also fastener must be arranged between described composition element.

So, comprehensive integrated positioning and the accuracy, rapidity, rigidity and the adjustability that are fastenedly connected, the present invention has optimum efficiency.

Brief Description Of Drawings:

Fig. 1 is that a kind of groove of prior art is location between combination-fixture component and the exploded perspective view that is fastenedly connected device;

Fig. 2 is that the another kind of groove of prior art is location between combination-fixture component and the exploded perspective view that is fastenedly connected device;

Fig. 3 is interelement location of the dowel-pin modular fixture of prior art and the exploded perspective view that is fastenedly connected device;

Fig. 4 is that the V-shaped groove of prior art is location between combination-fixture component and the exploded perspective view that is fastenedly connected device;

Fig. 5 is the stereogram of cross key of the present invention;

Fig. 6 is that groove of the present invention is location between combination-fixture component and the exploded perspective view that is fastenedly connected device.

Consult Fig. 5, wherein part 1 is the four bank or ridge that there is a screw at the center, and as a long key, part 2 is that the center has a screwing through hole and four bank or ridge that have the groove of an attachment 1, as a short key; Part 1 and part 2 fuse by spring washer 3 and screw 4 and constitute the cross key of one 90 ° of intersections; Its 90 ° need not have strict precision, and two grooves 23 and 24(that screw 4 does not need overtorquing to adapt to the right-angled intersection that cooperates with it with the stressed rotation of two bond energys that guarantees into right-angled intersection yet see Fig. 6) 90 ° of tolerances.

In Fig. 6, part 20 is the cross key among Fig. 5, upper and lower two combination-fixture components that part 21 and part 22 are located by connecting by part 20 respectively, be illustrated as four bank or ridge, but can make various difformities and size in fact as required,

part

23 and 24 is respectively T-slot and the shallow keyway that becomes 90 ° of right-angled intersections on the combination-fixture component; Part 25 is T-nuts, and part 26 is T shape pressing plates, and part 27 is soket head cap screws;

Part

25,26 and 27 links together and constitutes T shape fastener, as being fastenedly connected between upper and lower combination-fixture component.

During use, as shown in Figure 6, at first cross key 20 is placed in the T-slot 23 and shallow keyway 24 of part 22, secondly, make part 21 involutory by cross key 20, T-nut 25 and T shape pressing plate 26 are pushed along the horizontal T-slot 23 of part 22 and part 21 respectively, pass two vertical T-slots 23 of part 21 at last with spanner with part 22 location, two soket head cap screws 27 are turned a little, can be folded or unclamped part 21 and part 22 are fastening.

In fact, application form of the present invention is far above the disclosed content of Fig. 6.Though version can be various during application, not substantial variation.For example, when flat key 1 thickness of cross key 20 does not exceed the degree of depth of shallow keyway 24 of part 21 and the thickness of groove key 2 can run through up and down the T-slot mouth time, then part 21 and part 22 can be along horizontal T-slot 23 relative translation adjustment; And for example, when last 21 when different, can make the step key to flat key 1 and groove key 2 with the location groove width of following part 22.

Claims

1, a kind of cross keyway series combined fixture is characterized in that, the interelement positioning link of described built-up jig is a cross key, and described cross key is made up of a flat key, groove key and a secondary trip bolt and spring washer; Described flat key is the four bank or ridge that there is a screw at the center, and described groove key is that the center has a screwing through hole and four bank or ridge that have the groove of the described flat key of an attaching; Described flat key and groove key fuse by described trip bolt and spring washer; Described composition element is the part of various difformities and size, has the T-slot and the shallow keyway of 90 ° of right-angled intersections of a pair of one-tenth on it at least, is used to admit described cross key; Also be provided with fastener between described composition element.

According to the cross keyway series combined fixture of claim 1, it is characterized in that 2, described fastener can be combined by a T-nut and a T shape pressing plate and a soket head cap screw.