CN212239309U

CN212239309U - Special device for drilling

Info

Publication number: CN212239309U
Application number: CN202020992263.6U
Authority: CN
Inventors: 周向阳; 苗蓬勃; 方铖航
Original assignee: Hangzhou Vocational and Technical College
Current assignee: Hangzhou Vocational and Technical College
Priority date: 2020-06-03
Filing date: 2020-06-03
Publication date: 2020-12-29
Anticipated expiration: 2030-06-03

Abstract

The utility model relates to a special device for drilling, the special device is used for drilling of a flange plate workpiece, the special device comprises a clamp body and a drill plate, the drill plate is fixedly connected with the top of the clamp body, the special device also comprises a supporting nail, a positioning pin B and a spiral pressing plate clamping mechanism, a drill bushing is positioned above a middle flange of the flange plate workpiece, and the supporting nail is arranged on the clamp body and is abutted against a side wall of a straight line section of the middle flange of the flange plate workpiece; the two spiral pressing plate clamping mechanisms are respectively arranged on two opposite sides of the clamp body, and tightly press and fix the bottom flange of the flange plate workpiece on the clamp body; and the positioning pin B is positioned below the drill plate and fixed on the clamp body, and is matched and positioned with the plug bush of the central hole at the bottom of the flange plate workpiece. The utility model discloses can realize the quick accurate location of ring flange, alignment clamping when solving ring flange drilling loaded down with trivial details and the problem of inefficiency.

Description

Special device for drilling

Technical Field

The utility model relates to a isolated plant for drilling.

Background

Along with the continuous update development of mechanical products, various shaft parts with high machining precision requirements appear, the shaft parts are very easy to rotate during machining, the machining precision of the shaft parts is easy to deviate, the parts are manufactured in a small quantity, holes in a flange plate are machined in a one-by-one drilling mode, manual clamping is needed by people, the clamping speed is low, the parts are not easy to accurately position, the labor intensity is high, and the efficiency is low.

Like the ring flange boring grab of Taizhou professional technology institute, patent number: 201820401297.6 discloses a ring flange drilling clamp, which is characterized in that a pressing plate, a workpiece containing table, a gear and a handle are matched, after a workpiece is placed on the workpiece containing table, the handle is pulled to enable the workpiece to be clamped by the pressing plate and the workpiece containing table, and then the workpiece is drilled. However, in the method, the workpiece is clamped only through the pressing plate, the workpiece containing table and the first limiting rod, when the workpiece is placed, the workpiece cannot be quickly and accurately positioned, and the workpiece is rotated during machining due to the fact that the limiting device is not rotated, so that machining precision deviation is caused.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem, the utility model aims at providing a isolated plant for drilling, convenient quick alignment clamping when the ring flange drilling has improved drilling efficiency, and in the course of working, the ring flange can not rotate or remove.

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

a special device for drilling is used for drilling a flange plate workpiece, the device comprises a columnar main body, a central hole which penetrates through the columnar main body vertically is formed in the columnar main body, a bottom flange and a middle flange are arranged on the columnar main body, the middle flange is trapezoid-like, two sides of the middle flange are parallel straight line section side walls, the other two sides of the middle flange are arc section side walls protruding outwards, the clamp comprises a clamp body and a drill plate, the drill plate is fixedly connected to the top of the clamp body, and a plurality of drill sleeves are mounted on the drill plate; the two spiral pressing plate clamping mechanisms are respectively arranged on two opposite sides of the clamp body, and tightly press and fix the bottom flange of the flange plate workpiece on the clamp body; and the positioning pin B is positioned below the drill plate and fixed on the clamp body, and is matched and positioned with the plug bush of the central hole at the bottom of the flange plate workpiece.

Preferably, the drill bushing is an elongated drill bushing.

Preferably, the drill plate and the top of the clamp body are positioned through a diamond pin and a positioning pin A.

Preferably, the drilling jig further comprises a pair of slipknot bolts, the lower ends of the slipknot bolts are movably connected with the clamp body, two hole grooves are formed in the drill plate in an oblique diagonal manner, the outer side wall of each hole groove is opened, the upper ends of the slipknot bolts penetrate through the hole grooves and are in threaded connection with the nuts A, and the drill plate is connected to the clamp body through the nuts A by the slipknot bolts.

Preferably, the lower end of the slipknot bolt is hinged on the clamp body through a cylindrical pin.

The screw pressing plate clamping mechanism comprises a screw, a bolt, a pressing plate, a spring and a nut B, the nut B is fixed on the clamp body, the screw downwards penetrates through one through hole in the pressing plate and is fixedly connected with the clamp body, the bolt downwards penetrates through the other through hole in the pressing plate and is in threaded connection with the nut B, the spring is sleeved on the bolt, the upper end of the spring is abutted to the pressing plate, the lower end of the spring is abutted to the nut B, and the height of the screw is higher than that of the bolt.

Compared with the prior art, the utility model discloses can realize the quick accurate location of ring flange work piece, reliably press from both sides tightly, easy operation, convenient to use solves the loaded down with trivial details and the problem of inefficiency of ring flange drilling alignment clamping to drilling equipment kind's variety and practicality have been increased.

Drawings

Fig. 1 is a schematic structural diagram of the present invention;

FIG. 2 is a schematic structural view of the screw pressing plate clamping mechanism of the present invention;

fig. 3 is a top view of the present invention;

FIG. 4 is a schematic structural view of a flange workpiece processed by the present invention;

FIG. 5 is a schematic view of the structure of the flange at the middle of the flange workpiece;

wherein, 1, a clamp body; 2. a slipknot bolt; 3. a diamond pin; 4. a nut A; 5. a gasket A; 6. drilling a template; 7. lengthening the drill bushing; 8. positioning pins A; 9. a cylindrical pin; 10. a positioning pin B; 11. a support pin; 12. a screw press plate clamping mechanism; 121. a screw; 122. a bolt; 123. a gasket B; 124. pressing a plate; 125. a spring; 126. a nut B; 131. a bottom flange; 132. a middle flange; 133. a columnar body; 134. a central bore; 135. and (6) drilling.

Detailed Description

The present invention will be further explained with reference to the accompanying drawings and examples.

It should be noted that the following detailed description is exemplary and is intended to provide further explanation of the invention as claimed. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of exemplary embodiments according to the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.

The special device for drilling as shown in fig. 1 to 3 comprises a clamp body 1 and a drill plate 6, wherein the drill plate 6 is fixedly connected to the top of the clamp body 1, a plurality of drill bushings are mounted on the drill plate 6, the special device further comprises a support nail 11, a positioning pin B10 and a spiral pressure plate clamping mechanism 12, the drill bushings are located above a middle flange of a flange plate workpiece, and the support nail 11 is mounted on the clamp body 1 and abuts against a side wall of a straight line section of the middle flange of the flange plate workpiece; the two spiral pressing plate clamping mechanisms are respectively arranged on two opposite sides of the clamp body 1, and the spiral pressing plate clamping mechanisms tightly press and fix the bottom flange of the flange plate workpiece on the clamp body 1; and the positioning pin B10 is positioned below the drill plate 6 and fixed on the fixture body 1, and the positioning pin B10 is matched and positioned with a plug bush of a central hole at the bottom of the flange plate workpiece. Wherein the drill bushing is a lengthened drill bushing 7. Thus, the positioning pin B is adopted to realize the central positioning of the flange plate, the supporting nail is adopted to realize the rotational positioning, and the flange plate is fixed on the clamp body through the spiral pressure plate clamping mechanism, so that the middle flange of the flange plate can be accurately punched by the aid of the drill bushing.

In the fixture, the number and the positions of the lengthened drill bushings 7 correspond to those of the flange plate holes to be machined one by one.

As shown in FIG. 1, the drill plate 6 is positioned with the top of the clamp body 1 by the diamond-shaped pin 3 and the positioning pin A8. The diamond-shaped pin 3 is not easy to rotate, and the high precision of the positioning of the drill plate 6 on the clamp body 1 is ensured. And the bottom end of the clamp body 1 is a plane, so that the clamp body can be conveniently and stably placed on a table board.

As shown in fig. 1 and 3, the quick-change drill jig plate comprises a pair of slipknot bolts 2, the lower ends of the slipknot bolts 2 are movably connected with the jig body 1, two hole grooves are formed in the drill jig plate 6 in an oblique diagonal manner, the outer side walls of the hole grooves are opened, the upper ends of the slipknot bolts 2 penetrate through the hole grooves and are in threaded connection with nuts a4, the slipknot bolts 2 connect the drill jig plate 6 to the jig body 1 through nuts a4 and washers a5, and therefore, after the nuts a are unscrewed, the slipknot bolts 2 are rotated to be separated from the hole grooves, and the drill jig plate 6 can be quickly replaced.

Wherein, the bottom of the slipknot bolt 2 is hinged on the clamp body 1 through a cylindrical pin 9, so that the processing stability is improved.

As shown in fig. 2 and 3, the screw pressing plate clamping mechanism 12 includes a screw 121, a bolt 122, a pressing plate 124, a spring 125 and a nut B126, the nut B126 is fixed on the clamp body 1, the screw 121 passes through a through hole of the pressing plate 124 downward and is fixedly connected with the clamp body 1, the bolt 122 passes through another through hole of the pressing plate 124 downward and is in threaded connection with the nut B126, a gasket B123 is sleeved between the bolt 122 and the pressing plate, the bolt 122 is sleeved with the spring 125, the upper end of the spring 125 abuts against the pressing plate 124, the lower end of the spring 125 abuts against the nut B126, and the height of the screw 121 is higher than that of the bolt 122. Like this, adopt screw 121 to realize the activity of clamp plate 124 spacing, adopt bolt 122 and nut B126 to adjust the locking pressure of clamp plate 124 in order to realize compressing tightly fixed ring flange or loosening the ring flange, simple structure adjusts convenient and fast.

The device described in the present invention is mainly applied to the processing of flange workpieces as shown in fig. 4 and 5. The flange plate workpiece comprises a columnar main body 133, a central hole 134 penetrating through the columnar main body 133 from top to bottom is formed in the columnar main body 133, a bottom flange 131 and a middle flange 132 are arranged on the columnar main body 133, the middle flange 132 is in a trapezoid-like shape, two sides of the middle flange are parallel straight-line section side walls, and the other two sides of the middle flange are arc-line section side walls protruding outwards.

In the above embodiment, the following steps are adopted in the drilling process:

1. when the clamp is used, the flange plate workpiece bottom flange 132 is attached to the supporting surface of the clamp body 1 for positioning, meanwhile, the center hole 134 of the flange plate workpiece is sleeved into the positioning pin B10, the center of the flange plate is positioned, one side plane of the flange plate middle flange 132 is in contact with and attached to the supporting nail 11, and the rotation of the flange plate is limited.

2. The pressing plate 124 in the screw pressing plate clamping mechanism 12 is pressed on the flange plate workpiece, and the height of the pressing plate 124 is adjusted by screwing the bolt 122, so that the pressing plate 124 clamps the flange plate workpiece, and the up-and-down movement of the flange plate is limited.

3. After the flange plate workpiece is positioned, the drill plate 6 is attached to the upper surface of the clamp body 1 through the positioning of the diamond-shaped pin 3 and the positioning pin A8, the slipknot bolt 2 is rotated to the position of a hole groove of the drill plate 6, and the nut A4 is screwed.

4. After the flange plate workpiece is fixed and clamped, the drill bit accurately punches the flange plate middle flange 132 through the lengthened drill bushing 7, and the drill hole 135 is processed until the drilling of the flange plate hole is completed.

5. In the drilling process, if the drilling template 6 needs to be replaced, the drilling template 6 can be taken down and a new drilling template 6 can be replaced by sequentially unscrewing the nuts A4 and rotating the slipknot bolts 2.

6. After the drilling of the flange plate workpiece is completed, the height of the pressing plate 124 is adjusted by screwing the bolts 122, so that the pressing plate 124 loosens the flange plate workpiece, and the flange plate workpiece after the drilling is completed can be taken down.

Although embodiments of the present invention have been shown and described, it is to be understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that changes, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art without departing from the principles and spirit of the present invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A special device for drilling is used for drilling a flange plate workpiece, the flange plate workpiece comprises a columnar main body (133), a central hole (134) which penetrates through the columnar main body (133) up and down is arranged on the columnar main body, a bottom flange (131) and a middle flange (132) are arranged on the columnar main body, the middle flange (132) is trapezoid-like, two sides of the middle flange are parallel straight-line section side walls, the other two sides of the middle flange are arc-line section side walls which protrude outwards, the clamp comprises a clamp body (1) and a drill plate (6), wherein the drill plate (6) is fixedly connected to the top of the clamp body (1), a plurality of drill bushings are arranged on the drill plate (6), it is characterized by also comprising a supporting nail (11), a positioning pin B (10) and a spiral pressure plate clamping mechanism (12), the drill bushing is positioned above the middle flange of the flange plate workpiece, and the supporting nail (11) is arranged on the clamp body (1) and is abutted against the side wall of the straight line section of the middle flange of the flange plate workpiece; the two spiral pressing plate clamping mechanisms are respectively arranged on two opposite sides of the clamp body (1), and the spiral pressing plate clamping mechanisms tightly press and fix the bottom flange of the flange plate workpiece on the clamp body (1); and the positioning pin B (10) is positioned below the drill plate (6) and fixed on the clamp body (1), and the positioning pin B (10) is matched and positioned with a plug bush of a central hole at the bottom of the flange plate workpiece.

2. A special device for drilling according to claim 1, characterized in that the drill bushing is an elongated drill bushing (7).

3. A special device for drilling according to claim 1, characterized in that the drilling template (6) is positioned with the top of the fixture body (1) by means of diamond pins (3) and positioning pins a (8).

4. The special device for drilling according to claim 1, further comprising a pair of slipknot bolts (2), wherein the lower ends of the slipknot bolts (2) are movably connected with the clamp body (1), the drill plate (6) is provided with two hole grooves diagonally, the outer side walls of the hole grooves are open, the upper ends of the slipknot bolts (2) penetrate through the hole grooves and are in threaded connection with the nut A (4), and the drill plate (6) is connected to the clamp body (1) through the nut A (4) by the slipknot bolts (2).

5. A special device for drilling according to claim 4, characterized in that the lower end of the slipknot bolt (2) is hinged to the clamp body (1) by means of a cylindrical pin (9).

6. The special device for drilling according to claim 1, wherein the screw pressing plate clamping mechanism (12) comprises a screw (121), a bolt (122), a pressing plate (124), a spring (125) and a nut B (126), the nut B (126) is fixed on the clamp body (1), the screw (121) downwards penetrates through one through hole in the pressing plate (124) and is fixedly connected with the clamp body (1), the bolt (122) downwards penetrates through the other through hole in the pressing plate (124) and is in threaded connection with the nut B (126), the bolt (122) is sleeved with the spring (125), the upper end of the spring (125) abuts against the pressing plate (124), the lower end of the spring (125) abuts against the nut B (126), and the height of the screw (121) is higher than that of the bolt (122).