CN203541638U

CN203541638U - Cross-shaped hole drilling positioning device

Info

Publication number: CN203541638U
Application number: CN201320635403.4U
Authority: CN
Inventors: 曹伟东; 刘凡; 胡华杨; 周世伟
Original assignee: Chongqing Heavy Steam Yuandong Transmission Shaft Co ltd
Current assignee: Chongqing Heavy Steam Yuandong Transmission Shaft Co ltd
Priority date: 2013-10-15
Filing date: 2013-10-15
Publication date: 2014-04-16
Anticipated expiration: 2023-10-15

Abstract

The utility model discloses a cross-shaped hole drilling positioning device, which comprises a rectangular fixture body, wherein a through hole matched with a spline shaft head to be drilled is formed in the fixture body along the length direction of the fixture body; the central line of the through hole is accordant with the central line of an externally tangent circle of the fixture body along the direction; the fixture body is provided with a positioning screw hole for fixedly positioning the spline shaft head to be drilled; meanwhile, the fixture body is provided with a drill hole which corresponds to a hole drilled in the spline shaft head to be drilled. The cross-shaped hole drilling positioning device has the advantages of simple structure, convenience in use, improvement on the stability of product positioning, avoidance of damages to a drill bit caused by swinging of a product, high drilling accuracy, and suitability for mass production.

Description

Cross drilling-hole positioning device

Technical field

The utility model relates to a kind of hole drilling positioning fixture, is specifically related to a kind of for spline axle head being carried out to the positioner of cross boring.

Background technology

Spline axle head is carried out in manufacture process, need on spline axle head, get out cross bore, tradition is to adopt artificial location to the locate mode of this spline axle head, locate unstable, can cause the swing of spindle nose, and then damage drill bit, it is poor also to make the borehole accuracy of spline axle head.

Summary of the invention

For above-mentioned weak point of the prior art, the utility model aims to provide a kind of cross drilling-hole positioning device, simple in structure, easy to use, has increased the stability of product orientation, avoided product to swing and caused drill bit to damage, and borehole accuracy is high.

To achieve these goals, the technical solution of the utility model: a kind of cross drilling-hole positioning device, it comprises the clamp body that is cuboid, in this clamp body, be provided with along its length the through hole matching with spline axle head to be holed, and the center line of this through hole is consistent with described clamp body the party circumcircle center line upwards, on this clamp body, be provided with the positioning screw hole of spline axle head to be holed described in stationary positioned, meanwhile, on this clamp body, be provided with the boring corresponding with the hole of boring on spline axle head to be holed.

Further, on the clamp body outerplanar at the place, aperture of described boring, have technology groove, this technology groove is two, adjacent setting between the outerplanar at its place.

Further, in described boring, be provided with drill bushing, this drill bushing is two, itself and described clamp body tight fit, and this drill bushing and described technology groove are oppositely arranged.

Further, described through hole is ladder endoporus, wherein, on the concrete wall of the little through hole institute corresponding clip of internal diameter, establishes four borings, and these four boring, two two positions are relative, and the center line line right-angled intersection of boring relatively between two.

Further, on the concrete wall of the large through hole institute corresponding clip of described internal diameter, establish two positioning screw holes, the center line of this two positioning screw hole is perpendicular to the center line of described through hole, and the center line of this two positioning screw hole is mutually vertical.

During use, this device need not be fixed on lathe, due to the particularity of clamp body, is directly held on and on workbench, gets final product operation.Spline axle head to be holed is assemblied in described clamp body, by screw, be fitted in positioning screw hole spline axle head to be holed is located, drill bit carries out cross bore operation by boring, preferably, by drill bushing, position, make the more standard of cross bore that gets out, and after drill bushing wearing and tearing, directly change the withdrawing of drill bit when the technology groove relative with this drill bushing is used for holing.

The beneficial effects of the utility model: simple in structure, easy to use, increased the stability of product orientation, avoided product to swing and caused drill bit to damage, and borehole accuracy is high, suitable production in enormous quantities.

Accompanying drawing explanation

In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, to the accompanying drawing of required use in embodiment or description of the Prior Art be briefly described below, apparently, accompanying drawing in the following describes is only embodiment more of the present utility model, for those of ordinary skills, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.

Fig. 1 is the structural representation of utility model;

Fig. 2 is the right view of Fig. 1.

The specific embodiment

Below in conjunction with specific embodiment and accompanying drawing, further describe the utility model.

A kind of cross drilling-hole positioning device as shown in Figure 1-2, it comprises the clamp body 1 that is cuboid, in this clamp body 1, be provided with along its length the through hole 2 matching with spline axle head to be holed, and the center line of this through hole 2 is consistent with described clamp body 1 the party circumcircle center line upwards, on this clamp body 1, be provided with the positioning screw hole 5 of spline axle head to be holed described in stationary positioned, meanwhile, on this clamp body 1, be provided with the boring 3 corresponding with the hole of boring on spline axle head to be holed.

The utility model is mainly used in spline axle head and carries out the cross tool locating in when boring, on clamp body 1 outerplanar at the place, aperture of described boring 3, has technology groove 6, and this technology groove 6 is two, adjacent setting between the outerplanar at its place.During boring, by contain this technology groove 6 one facing to being positioned on workbench, then started to hole by its opposite face.

In described boring 3, be provided with drill bushing 4, this drill bushing 4 is two, itself and described clamp body 1 tight fit, and this drill bushing 4 is oppositely arranged with described technology groove 6.By drill bushing, position, make the more standard of cross bore that gets out, and after drill bushing wearing and tearing, directly change, do not need to change whole positioner, saving manufacturing cost.

For boring 3, the setting of positioning screw hole 5: described through hole 2 is ladder endoporus, match with spline axle head to be holed, so that spline axle head to be holed can be fitted in it, wherein, on the wall of little 2 corresponding clips of through hole concrete 1 of internal diameter, establish four

borings

3,3 liang of two positions of this four boring are relative, and 3 the center line line right-angled intersection of relatively holing between two; On the wall of large 2 corresponding clips of through hole concrete 1 of described internal diameter, establish two positioning screw holes 5, the center line of this two positioning screw hole 5 is perpendicular to the center line of described through hole 2, and the center line of this two positioning screw hole 5 is mutually vertical.Certainly, in actual mechanical process, can also on this clamp body 1, process standby boring 3, dog screw 5, to repeatedly utilize, increase operation rate.

The technical scheme above the utility model embodiment being provided is described in detail, applied principle and the embodiment of specific case to the utility model embodiment herein and set forth, the explanation of above embodiment is only applicable to help to understand the principle of the utility model embodiment; , for one of ordinary skill in the art, according to the utility model embodiment, in the specific embodiment and range of application, all will change, in sum, this description should not be construed as restriction of the present utility model meanwhile.

Claims

1. a cross drilling-hole positioning device, it is characterized in that: comprise the clamp body (1) that is cuboid, in this clamp body (1), be provided with along its length the through hole (2) matching with spline axle head to be holed, and the center line of this through hole (2) is consistent with described clamp body (1) the party circumcircle center line upwards, on this clamp body (1), be provided with the positioning screw hole (5) of spline axle head to be holed described in stationary positioned, meanwhile, on this clamp body (1), be provided with the boring (3) corresponding with the hole of boring on spline axle head to be holed.

2. cross drilling-hole positioning device according to claim 1, is characterized in that: on clamp body (1) outerplanar at the place, aperture of described boring (3), have technology groove (6), this technology groove (6) is two, adjacent setting between the outerplanar at its place.

3. cross drilling-hole positioning device according to claim 2, it is characterized in that: in described boring (3), be provided with drill bushing (4), this drill bushing (4) is two, itself and described clamp body (1) tight fit, and this drill bushing (4) is oppositely arranged with described technology groove (6).

4. cross drilling-hole positioning device according to claim 1, it is characterized in that: described through hole (2) is ladder endoporus, wherein, on the wall of the little through hole of internal diameter (2) institute corresponding clip concrete (1), establish four borings (3), these four boring (3) two two positions are relative, and the center line line right-angled intersection of boring (3) relatively between two.

5. cross drilling-hole positioning device according to claim 3, it is characterized in that: on the wall of the large through hole of described internal diameter (2) institute corresponding clip concrete (1), establish two positioning screw holes (5), the center line of this two positioning screw hole (5) is perpendicular to the center line of described through hole (2), and the center line of this two positioning screw hole (5) is mutually vertical.