CN210996676U

CN210996676U - Drilling machine fixture for stepped thin-wall revolving body

Info

Publication number: CN210996676U
Application number: CN201921995371.2U
Authority: CN
Inventors: 杨思源; 张雷; 张腾
Original assignee: Changan University
Current assignee: Changan University
Priority date: 2019-11-18
Filing date: 2019-11-18
Publication date: 2020-07-14
Anticipated expiration: 2029-11-18

Abstract

A drill jig for a stepped thin-wall revolving body comprises a base, a drill plate, a fixed-hole mandrel and a pressing device; the drilling template is hinged to the center of the top end of the base, a hole-fixing mandrel is vertically arranged below the center of the top end of the base, and pressing devices are symmetrically arranged on two sides of the hole-fixing mandrel. The utility model has simple and compact structure, and can better position the workpiece; the drill bit can be well guided during drilling, and the drilled hole is guaranteed to have certain perpendicularity with the axis.

Description

Drilling machine fixture for stepped thin-wall revolving body

Technical Field

The utility model belongs to the technical field of drill jig, in particular to a drill jig for echelonment thin wall solid of revolution.

Background

At present, when various mechanical processing is used for drilling radial small holes of stepped thin-wall revolving body parts, due to the fact that the diameters of all sections of the parts are different and the parts have thin-wall characteristics, clamping of workpieces is not easy to conduct, guiding is not easy to conduct during drilling, and verticality is guaranteed.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a drill jig for echelonment thin wall solid of revolution to solve above-mentioned problem.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a drill jig for a stepped thin-wall revolving body comprises a base, a drill plate, a fixed-hole mandrel and a pressing device; the drilling template is hinged to the center of the top end of the base, a hole-fixing mandrel is vertically arranged below the center of the top end of the base, and pressing devices are symmetrically arranged on two sides of the hole-fixing mandrel.

Further, the base comprises a bottom plate and a mounting plate, and the mounting plate is vertically fixed at one end of the upper surface of the bottom plate; the drilling template, the fixed-hole mandrel and the pressing device are all arranged on the mounting plate.

Furthermore, the drilling template is a step-shaped plate, a groove is formed in the top end of the base, one end of the drilling template is arranged in the groove, and the drilling template is hinged with the inner side wall of the groove through a rotating shaft.

Furthermore, a support nail is arranged at the bottom of the inner side of the groove, the support nail penetrates through the drill jig plate, and a hexagon nut is arranged at the top of the support nail; the end part of the drilling template is provided with a drilling template sleeve.

Furthermore, the pressing device comprises a pressing plate, an upright post, a top post and a spring; the upright post and the top post are both vertically fixed on the base, the upright post is longer than the top post, the pressing plate is provided with an elliptical hole, the upright post penetrates through the elliptical hole, and the upright post between the base and the pressing plate is sleeved with a spring; the upright post at the outer side of the pressure plate is connected with a nut in a threaded manner.

Furthermore, the bottom plate is also vertically connected with an auxiliary supporting rod through threads.

Compared with the prior art, the utility model discloses there is following technological effect:

the utility model has simple and compact structure, and can better position the workpiece; the drill bit can be well guided during drilling, so that the drilled hole and the axis have certain perpendicularity; better rigidity can be ensured during drilling. The parts can be conveniently disassembled and assembled.

Drawings

FIG. 1 is a perspective view of the present invention

FIG. 2 is a front view of the present invention

FIG. 3 is a left side view of the present invention

FIG. 4 is a top view of the present invention

Detailed Description

The present invention will be further explained with reference to the accompanying drawings:

referring to fig. 1 to 4, a drill jig for a stepped thin-walled revolving body includes a base, a drill plate 2, a centering shaft 4 and a pressing device; the drilling template 2 is hinged to the center of the top end of the base, the hole-fixing mandrel 4 is vertically arranged below the center of the top end of the base, and the pressing devices are symmetrically arranged on two sides of the hole-fixing mandrel 4.

The base comprises a bottom plate 9 and a mounting plate 17, and the mounting plate 17 is vertically fixed at one end of the upper surface of the bottom plate 9; the drilling template 2, the centering shaft 4 and the pressing device are all arranged on the mounting plate 17.

The drilling template 2 is a step-shaped plate, a groove is formed in the top end of the base, one end of the drilling template 2 is arranged in the groove, and the drilling template 2 is hinged to the inner side wall of the groove through a rotating shaft 5.

The bottom of the inner side of the groove is provided with a support nail 3, the support nail 3 penetrates through the drill jig plate 2, and the top of the support nail 3 is provided with a hexagon nut 16; the end of the drill plate 2 is provided with a drill sleeve 1.

The pressing device comprises a pressing plate 11, an upright post 15, a top post 12 and a spring 14; the upright post 15 and the top post 12 are both vertically fixed on the base, the upright post 15 is longer than the top post 12, the pressing plate 11 is provided with an elliptical hole, the upright post penetrates through the elliptical hole, and the upright post 15 between the base and the pressing plate 11 is sleeved with a spring 14; the upright post 15 at the outer side of the pressure plate is connected with a nut in a threaded manner.

The bottom plate 9 is also vertically connected with an auxiliary support rod 8 through threads.

The clamp comprises a clamp body 9, a centering shaft 4, an M30 nut 6, a stand column 15, a spring 14, a pressure plate 11, a top column 12, an auxiliary support 8, a support nail 3 and an M12 nut (7, 10 and 13). The fixture body 9, the rotating shaft 5, the drilling template 2, the hexagon nut 16 and the drill jig sleeve 1. The supporting nail 3 is assembled on the clamp body to limit the rotary die plate 2. The fixture body 9 is connected with the drill plate 2 through a rotating shaft 5 and is fastened through a hexagon nut 16, and the drill plate 2 is provided with a drill plate sleeve 1. When the workpiece is disassembled, the nut 10 of the pressing plate 11 and the hexagon nut 1 on the drill plate 2 are loosened, the drill plate is rotated by a certain angle to be opened, so that the workpiece is taken out, when the workpiece is to be installed, the workpiece is matched with the hole-positioning spindle 4, then the pressing plate 11 is pressed tightly on the workpiece, the nut 10 is locked, and then the hexagon nut 16 on the drill plate is screwed tightly, so that the freedom degree of the workpiece is limited, and drilling processing is performed. The auxiliary support 8 plays a role after the workpiece is clamped, and the rigidity of the workpiece during machining can be improved. The spring 14 fitted over the post 15 improves the reliability of the clamping.

Claims

1. A drill jig for a stepped thin-wall revolving body is characterized by comprising a base, a drill plate (2), a fixed-hole mandrel (4) and a pressing device; the drilling template (2) is hinged to the center of the top end of the base, the hole-fixing mandrel (4) is vertically arranged below the center of the top end of the base, and the pressing devices are symmetrically arranged on two sides of the hole-fixing mandrel (4).

2. The drill jig for the stepped thin-walled rotary body according to claim 1, wherein the base includes a bottom plate (9) and a mounting plate (17), the mounting plate (17) being vertically fixed to one end of the upper surface of the bottom plate (9); the drilling template (2), the fixed-hole mandrel (4) and the pressing device are all arranged on the mounting plate (17).

3. The drilling machine fixture for the stepped thin-wall revolving body according to claim 1, wherein the drill plate (2) is a stepped plate, the top end of the base is provided with a groove, one end of the drill plate (2) is arranged in the groove, and the drill plate (2) is hinged with the inner side wall of the groove through the rotating shaft (5).

4. The drill jig for the stepped thin-wall revolving body according to claim 3, wherein the bottom of the inner side of the groove is provided with a support nail (3), the support nail (3) is arranged through the drill plate (2), and the top of the support nail (3) is provided with a hexagon nut (16); the end part of the drill plate (2) is provided with a drill jig sleeve (1).

5. The drill press jig for the stepped thin-wall rotary body according to claim 1, wherein the pressing means comprises a pressing plate (11), a column (15), a top column (12) and a spring (14); the upright post (15) and the top post (12) are both vertically fixed on the base, the upright post (15) is longer than the top post (12), the pressing plate (11) is provided with an elliptical hole, the upright post penetrates through the elliptical hole, and the upright post (15) between the base and the pressing plate (11) is sleeved with a spring (14); the upright post (15) at the outer side of the pressure plate is connected with a nut in a threaded manner.

6. The drill jig for the stepped thin-wall revolving body according to claim 2, wherein the bottom plate (9) is further vertically screwed with an auxiliary support bar (8).