CN215902791U

CN215902791U - Shaft one-die multi-piece fuse hole machining drill jig

Info

Publication number: CN215902791U
Application number: CN202121965460.XU
Authority: CN
Inventors: 袁国安; 曹烈; 徐焘
Original assignee: Shenyang Aircraft Industry Group Co Ltd
Current assignee: Shenyang Aircraft Industry Group Co Ltd
Priority date: 2021-08-20
Filing date: 2021-08-20
Publication date: 2022-02-25
Anticipated expiration: 2031-08-20

Abstract

The utility model belongs to the field of aviation mechanical processing technical equipment and discloses a drilling jig for processing a plurality of fuse holes in a shaft die. The device mainly comprises a basic support, an angular positioning pin, a wedge block and the like. The front end of the angular positioning pin is manufactured into a conical surface structure to be matched with the notch of the product; an elastic structure is made to eliminate over-positioning. The wedge generates Z-direction displacement to contact the product to play a supporting role while moving forwards in the wedge groove, and the product is ensured not to vibrate when drilling. The root foundation support is used as an integral support of the whole drilling jig and is used for positioning the outer cylindrical surface and the bottom surface of a product and matching and connecting other elements to realize specific functions. The clamping device realizes clamping of multiple pieces in one die, elastic pin orientation and wedge block stable support of shaft products needing to be provided with small-size fuse holes. The purposes of accurate positioning, reliable support, reduction of tool changing frequency and improvement of machining efficiency are achieved.

Description

Shaft one-die multi-piece fuse hole machining drill jig

Technical Field

The utility model belongs to the field of aviation mechanical processing technical equipment, and is suitable for processing fuse holes of small-size shaft products. The novel drilling jig for machining the fuse holes in the shaft by one die and multiple workpieces can be used for machining multiple products by one-time clamping.

Background

In aerospace products, there are a large number of small-sized shaft parts for attachment and positioning. Because the requirement of safety coefficient in the aviation field is high, all the products need to be provided with fuse holes for mechanical anti-loosening, and the reliability is improved. The fuse hole uses many small holes according to the structure requirement of the product, the drill bit is not easy to be guided during processing, and the drill bit is easy to break during fine processing. This requires a special jig for guiding and protecting the drill bit.

The traditional special drill jig only clamps one piece at a time, and the problems of high tool changing frequency, long moving stroke of a machine tool, increased auxiliary time for frequently loading and unloading workpieces, low production efficiency and the like exist in the machining process. The core idea of the design of the fixture is to reduce the clamping times as much as possible and reduce the tool changing frequency, complete a plurality of workpieces by one-time clamping and complete a plurality of processes. In other words, according to the processing technical scheme and the experience of operators, the more product positioning and processing can be realized at one time, and the purpose of improving the processing efficiency is achieved. The present invention has been made in view of the above technical background.

SUMMERY OF THE UTILITY MODEL

The purpose of the utility model is: the drilling jig is used for machining the fuse holes of the shafts by one die and multiple pieces, so that the clamping, the elastic pin angle positioning and the wedge block stable supporting of the shafts needing to be provided with small-size fuse holes by one die and multiple pieces are realized.

The technical scheme of the utility model is as follows: the drilling jig for machining the fuse holes of one shaft and multiple fuses mainly comprises a basic support, an angular positioning pin, a wedge block and the like. The front end of the angular positioning pin is manufactured into a conical surface structure to be matched with the notch of the product; an elastic structure is made to eliminate over-positioning. The wedge generates Z-direction displacement to contact the product to play a supporting role while moving forwards in the wedge groove, and the product is ensured not to vibrate when drilling. The root base support is used as an integral support of the whole drilling jig and is used for positioning the outer cylindrical surface and the bottom surface of a product and simultaneously matching and connecting other elements to realize a specific function; the machining of a plurality of products can be continuously expanded according to actual needs and the stroke of the machine tool workbench.

The utility model has the beneficial effects that the one-die multi-piece fuse hole processing drill jig for the shaft realizes clamping, elastic pin angle positioning and wedge block stable support of one-die multi-piece shaft products needing small-size fuse holes. The purposes of accurate positioning, reliable support, reduction of tool changing frequency and improvement of machining efficiency are achieved.

Drawings

FIG. 1 is a schematic view of a shaft type one-mold multi-piece fuse hole machining jig. (a) A front view; (b) a top view; (c) a rear view; (d) planing surface A, (e) planing surface B.

In the figure: 1, a base support; 2, pressing a plate; 3, wedge blocks; 4, drilling a template; 5, angular positioning pins; 6, a baffle plate; 7 compressing the spring; 8, a ring groove screw; 9 fixing the rotating sleeve; 10 a handle; 11 compressing the nail; 12 a screw with a cylindrical head; 13 cylindrical pins; 14 a countersunk head screw; 15, and (5) preparing the product.

Detailed Description

The present invention is described in further detail below. The drilling jig for machining the fuse holes of one shaft die and multiple fuse holes mainly integrates three innovation points: clamping a plurality of workpieces in a mould, fixing the angle by using the elastic pin and stably supporting the wedge block. The drill jig has the function of clamping 4 products at a time, and can continue to expand the processing of a plurality of products according to actual needs and the stroke of a machine tool workbench. The base support 1 serves as an integral support for the entire jig and serves to position the outer cylindrical surface and the bottom surface of the product 15 and also serves to cooperate with other components for a specific function. The angular positioning pin 5 is used for positioning the angular direction of the product, and is matched with the base support to position the outer cylindrical surface and the bottom surface of the product to realize the complete positioning of the product on the drill jig; the positioning pin is in sliding fit with the hole on the base support, and the front end of the positioning pin is made into a conical surface structure to be matched with the notch of the product and used for guiding and accurately positioning the product during clamping; the middle of the positioning pin is provided with a compression spring 7 to realize the positioning pin, so that the expansion and contraction of the positioning pin are controlled to eliminate possible over-positioning. The baffle 6 is screwed on the foundation support by a countersunk head screw 14 and is used for limiting the compression spring; the middle of the positioning pin is provided with a U-shaped groove for limiting and installing the angular positioning pin. After the product is positioned, the product is pressed tightly by a pressing plate 2; one pressing plate simultaneously presses 2 products through the pressing nails 11; the base support is provided with a plurality of bosses used for manufacturing guide holes of the angular positioning pins and simultaneously used for limiting the pressing plate, so that the pressing plate only moves in the Z direction, and only a little pressing nail needs to be loosened when a product is clamped. The foundation support is provided with a guide groove which is formed by an inclined plane matched with the drill plate 4 and matched with the wedge block 3; the back end of the wedge block is provided with a U-shaped groove which is arranged in a ring groove of a ring groove screw 8, and the ring groove screw is matched with a threaded hole of the base support; after the product is positioned and compressed, the ring groove screw is screwed to drive the wedge block to move forwards in the wedge groove and generate Z-direction displacement to contact the product to play a supporting role, so that the product is ensured not to vibrate during drilling. The fixed rotating sleeve 9 is arranged on a drill plate, and the drill plate is accurately arranged on a basic support through a cylindrical head screw 12 and a cylindrical pin 13 and is used for accurately guiding a drill bit. The handle 10 is mounted on the base support for handling the drill jig.

Claims

1. The drilling jig for processing the fuse holes of a plurality of shafts in one die is characterized by comprising a basic support (1), a pressing plate (2), a wedge block (3), a drilling template (4), an angular positioning pin (5), a baffle plate (6), a compression spring (7), a ring groove screw (8), a fixed rotating sleeve (9), a handle (10), a compression nail (11), a cylindrical head screw (12), a cylindrical pin (13) and a countersunk screw (14);

the basic support (1) is used as an integral support of the whole drill jig and is used for positioning the outer cylindrical surface and the bottom surface of a product and is also used for being matched and connected with other elements; the angular positioning pin (5) is used for positioning the angular direction of the product, and is matched with the base support (1) to position the outer cylindrical surface and the bottom surface of the product to realize the complete positioning of the product on the drill jig; the angular positioning pin (5) is in sliding fit with a hole on the base support (1), and the front end of the angular positioning pin is made into a conical surface structure to be matched with a notch of a product and used for guiding and accurately positioning the product during clamping; the middle of the positioning pin is provided with a compression spring (7) to realize the positioning pin, so as to control the extension and contraction of the positioning pin to eliminate possible over-positioning; the baffle (6) is screwed on the base support (1) by a countersunk head screw (14) and is used for limiting the compression spring; the middle part of the positioning pin is provided with a U-shaped groove for limiting and installing the angular positioning pin; after the product is positioned, the product is pressed tightly by a pressing plate (2); a guide groove formed by an inclined plane matched with the drill plate (4) on the base support (1) is formed into a wedge groove matched with the wedge block (3); the back end of the wedge block is provided with a U-shaped groove which is arranged in a ring groove of a ring groove screw (8), and the ring groove screw is matched with a threaded hole of the basic support; the fixed rotating sleeve (9) is arranged on a drill plate, and the drill plate is accurately arranged on the basic support (1) through a cylindrical head screw (12) and a cylindrical pin (13) and is used for accurately guiding a drill bit; the handle (10) is arranged on the base support (1) and used for carrying the drill jig.

2. The shaft type one-mold multi-piece fuse hole processing jig as claimed in claim 1, characterized in that one pressing plate simultaneously presses 2 products by means of pressing nails (11).

3. The shaft one-mold multi-piece fuse hole machining jig as claimed in claim 1, characterized in that the base support (1) is provided with a plurality of bosses for manufacturing guide holes of the angular positioning pins (5).