CN203900939U - Drilling fixture for upper inclined planes of shaft parts - Google Patents

Abstract

The utility model discloses a drilling fixture for upper inclined planes of shaft parts. The drilling fixture comprises a fixture body, and is characterized in that a through hole is formed in the fixture body; a machined shaft part can penetrate in the through hole; screw holes are formed in the top, the left side surface and the right side surface of the fixture body, and are connected with the through hole; screws are arranged in the screw holes in a matched manner; and an included angle between the bottom of the fixture body and the axis of the through hole is equal to an included angle between the upper inclined plane of the drilled shaft part and the axis of the shaft part. The whole fixture is simple in structure and convenient to use; the problem that the surface smoothness of shaft parts is damaged can be solved; the machining accuracy is improved; the defective percentage of products can also be reduced; the clamping time is saved; and the production cost of enterprises is reduced.

Description

A jig for drilling holes on an inclined plane on a shaft

technical field

The utility model relates to a tooling fixture, in particular to a tooling fixture used for drilling inclined planes on shaft workpieces.

Background technique

At present, in the field of mechanical processing, when the operator performs drilling operations on a workpiece with an inclined plane, he must obliquely fix the workpiece fixture to be processed on the worktable of the drilling machine, and then use the drill bit on the drilling machine to correct the workpiece. Carry out drilling operations. The disadvantage of this working method is that the clamps on the drilling machine are generally double-armed clamps, and the force on the workpiece is concentrated on the two clamp arms. During the processing, the shaft workpiece is easy to slip, so after the processing is completed , there will be marks on the side of the workpiece, which will damage the surface smoothness of the workpiece; in addition, because the fixture on the drilling machine has two points of action on the workpiece, its clamping fixity is poor, and the workpiece is prone to rotation during processing. The hole drilling is deviated, the machining accuracy is insufficient, and the product qualification rate is reduced.

Contents of the invention

The purpose of this utility model is to solve the above-mentioned technical problems, to provide a kind of drilling jig on the inclined surface of the shaft, which can not only reduce the drilling of the shaft workpiece with the inclined surface, but also reduce the The destruction of the surface smoothness can improve the machining accuracy, reduce the defective rate of the product, save the clamping time, and reduce the production cost of the enterprise.

The technical solution for realizing the utility model is: a jig for drilling holes on inclined planes on shafts, including a jig body, and the jig body has a through hole that can pass through the shafts to be processed. There are screw holes on the bottom surface and the left and right side surfaces, and the screw holes communicate with the through holes and are equipped with screws; The included angle of the axis can ensure that the shaft is clamped by the screw from three directions, and the upper inclined surface of the shaft can be adjusted to be parallel to the bottom surface of the fixture body, which is convenient for drilling on the drill press.

The screw holes on the upper bottom surface and the left and right sides of the clamp body are perpendicular to the axis of the through hole, so that the screws are easy to fix.

The upper bottom surface of the fixture body and the screw holes on the left and right sides are in the same plane perpendicular to the axis of the through hole, so that the fixing of the shaft is the most secure.

The upper bottom surface of the clamp body and the screw holes on the left and right sides are located at the center of the through hole, which is also the center of gravity, and the effect is the best.

The cross-sectional shape of the fixture body at the position of the screw hole is rectangular, which is convenient for installation on the drill floor.

The through hole on the fixture body is a circular through hole, which fits with the cylinder of the shaft.

There is a pit on the top of the screw hole on the upper bottom surface of the fixture body, and the bottom of the pit is perpendicular to the screw hole. This is because the through hole is inclined to the upper bottom surface, the screw is perpendicular to the through hole, and the bottom surface of the nut of the screw is aligned with the upper surface. The bottom surface has an included angle, which cannot fit well. Therefore, a pit perpendicular to the bottom of the screw hole is provided on the top of the screw hole, so that the screw can be tightened more tightly without affecting the operation in the pit.

The beneficial effects of the utility model are:

1. Adopt the inclined surface drilling fixture on the shaft of the utility model to clamp the shaft workpiece with the inclined surface. The clamping points are three points, the force is scattered, the area of the clamping point is small, and the surface smoothness of the workpiece can be reduced. damage to

2. Moreover, the three-point clamping has good stability, which can ensure that the inclined plane of the workpiece is in a horizontal state, does not move, has high machining accuracy, and a high pass rate.

Description of drawings

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

Fig. 2 is the A-A view of Fig. 1;

Fig. 3 is a top view of Fig. 1;

Figure 4 is a schematic diagram of the shaft

Fig. 5 working diagram of the utility model.

Symbols in the figure: 1—fixture body, 2—through hole, 3—screw hole, 4—dimple, 5—screw, 6—shaft part, 7—upper slope of the shaft part, 8—upper bottom surface, 9—bottom bottom surface.

Detailed ways

As shown in Figures 1 to 5: a jig for drilling on inclined planes on shafts, including a jig body 1, the jig body 1 has a through hole 2, the through hole 2 can pass through the shafts 6 to be processed, so The upper bottom surface 8 and the left and right sides of the clamp body 1 have screw holes 3, the screw holes 3 communicate with the through hole 2 and are equipped with screws 5; the angle between the lower bottom surface 9 of the clamp body 1 and the axis of the through hole 2 It is equal to the included angle between the inclined plane 7 on the drilled shaft and the axis of the shaft. The upper bottom surface 8 of the clamp body 1 and the screw holes 3 on the left and right sides are perpendicular to the axis of the through hole 2, and the upper bottom surface 8 of the clamp body 1 and the screw holes 3 on the left and right sides are on the same axis perpendicular to the through hole. 2 axis plane. The upper bottom surface 8 of the clamp body 1 and the screw holes 3 on the left and right sides are located at the center of the through hole 2 . The cross-sectional shape of the clamp body 1 at the position of the screw hole 3 is a rectangle. The through hole 2 on the clamp body 1 is a circular through hole. The upper bottom surface 8 of the fixture body 1 has a pit 4 on the top of the screw hole 3 , and the bottom of the pit 4 is perpendicular to the screw hole 3 .

Use process: as shown in Figure 5, unscrew the screw 5 on the inclined-plane drilling jig of the utility model shaft, and then put the shaft 6 to be processed in the processing through hole 2 of the fixture body 1, and then Tighten the three screws 5. When tightening, ensure that the inclined plane 7 of the shaft part 6 is in a horizontal position. At this time, the contact points between the shaft part 6 and the clamping fixture for drilling the inclined plane of the shaft part of the present invention are three Point contact positioning, so as to ensure that the shaft member 6 will not rotate during processing.

Claims (7)

1. A jig for drilling holes on an inclined plane on a shaft, comprising a jig body, characterized in that: the jig body has a through hole, the through hole can pass through the shaft to be processed, the upper bottom surface and the left and right sides of the jig body There are screw holes on both sides, and the screw holes communicate with the through holes and are equipped with screws; the angle between the lower bottom surface of the fixture body and the axis of the through hole is equal to the angle between the upper slope of the drilled shaft and the axis of the shaft. horn. 2 . The jig for drilling holes on inclined planes on shafts according to claim 1 , wherein the screw holes on the upper bottom surface and the left and right sides of the jig body are perpendicular to the axis of the through hole. 3 . 3. According to claim 1 or 2, the inclined-plane drilling jig for shaft parts is characterized in that: the upper bottom surface of the jig body and the screw holes on the left and right sides are in the same plane perpendicular to the axis of the through hole. 4. The jig for drilling the inclined plane on the shaft according to claim 1, wherein the screw holes on the upper bottom surface and the left and right sides of the jig body are at the center of the through hole. 5 . The jig for drilling inclined surfaces on shafts according to claim 1 or 4 , wherein the cross-sectional shape of the jig body at the position of the screw hole is a rectangle. 6 . 6. The jig for drilling inclined surfaces on shafts according to claim 1, wherein the through hole on the jig body is a circular through hole. 7. The jig for drilling holes on inclined planes on shafts according to claim 1, wherein there is a pit on the top of the screw hole on the upper bottom surface of the jig body, and the bottom of the pit is perpendicular to the screw hole.