CN212121803U

CN212121803U - Special-shaped workpiece drilling device for rear pull rod head of brake adjuster

Info

Publication number: CN212121803U
Application number: CN202020559560.1U
Authority: CN
Inventors: 徐洪艳; 李岩; 柳春日; 尚宇
Original assignee: Shenyang Zhongche Westinghouse Track Braking Technology Co ltd
Current assignee: Shenyang Westinghouse Brake Technology Co.,Ltd.
Priority date: 2020-04-16
Filing date: 2020-04-16
Publication date: 2020-12-11
Anticipated expiration: 2030-04-16

Abstract

The utility model belongs to the technical field of machining equipment, especially, draw bar head dysmorphism work piece drilling equipment behind brake adjuster, mode clamping to draw bar head opposite sex work piece drilling processing behind the brake adjuster among the prior art is firm inadequately, thereby and the alignment time is longer lead to production efficiency low, the problem that the product percent of pass is low, the scheme as follows is proposed now, it includes the bottom plate, the riser, upper plate and back draw head body, vertical hole has been seted up at the bottom plate top, vertical downthehole sliding connection has the ejector pin, ejector pin top and back draw head body bottom swing joint, ejector pin outside thread bush is equipped with support nut, support nut and bottom plate top swing joint, two horizontal holes have been seted up to riser one side. The utility model has the advantages of reasonable design, guarantee effectively going on of drilling work through the all-round fixed to the work piece to through the drill bushing to the location of drilling position, avoided the time waste that the alignment caused, improved the machining efficiency of work piece when guaranteeing the product percent of pass.

Description

Special-shaped workpiece drilling device for rear pull rod head of brake adjuster

Technical Field

The utility model relates to a machining equipment technical field especially relates to special-shaped workpiece drilling equipment of brake adjuster rear stay bar head.

Background

In the production process of a factory, the processes of marking, aligning, clamping and drilling are usually adopted to perform trial production or process a small batch of machined parts, and the mode can save the time for designing a tool clamp and the cost for manufacturing the tool, so that the method is economical. However, for mass production, special tooling fixtures should be designed in consideration to improve the processing efficiency and the stability of the processing quality of products.

In the prior art, the phi 8.5 hole of the back draw bar head of the brake adjuster is usually processed by firstly marking and then aligning, clamping and drilling according to the marking position, and the hole is aligned in such a way that the production efficiency is low and the product percent of pass is low due to inaccuracy, infirm clamping and longer aligning time, so that the device for drilling the special-shaped workpiece of the back draw bar head of the brake adjuster is provided for solving the problems.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the problem that the mode clamping of the back draw bar head opposite sex work piece drilling processing of the brake adjuster among the prior art is not firm enough, and the alignment time is longer thereby leads to the shortcoming that production efficiency is low, the product percent of pass is low, and the back draw bar head dysmorphism work piece drilling equipment of the brake adjuster who proposes.

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

a drilling device for a special-shaped workpiece on the rear pull rod head of a brake adjuster comprises a bottom plate, a vertical plate, an upper plate and a rear pull head body, wherein a vertical hole is formed in the top of the bottom plate, a push rod is connected in the vertical hole in a sliding manner, the top end of the push rod is movably connected with the bottom of the rear pull head body, a support nut is sleeved on the outer side of the push rod in a threaded manner and is movably connected with the top of the bottom plate, two transverse holes are formed in one side of the vertical plate, a positioning mandrel and a press rod are respectively installed in the two transverse holes in a sliding manner, the positioning mandrel is movably connected with the inner wall of one side of the rear pull head body, the press rod is movably connected with the inner wall of the other side of the rear pull head body, a hexagonal nut is sleeved on the outer side of the press rod in, and a drill bush is fixedly arranged in the through hole.

Preferably, two first positioning pins are fixedly mounted in the bottom plate, two first pin holes matched with the first positioning pins are formed in the bottom of the vertical plate, and the vertical plate is positioned through the first positioning pins.

Preferably, two second positioning pins are fixedly mounted in the upper plate, two second pin holes matched with the second positioning pins are formed in the top of the vertical plate, and the upper plate is positioned through the second positioning pins.

Preferably, the bottom plate is fixedly installed at the bottom of the vertical plate through two first inner hexagonal cylindrical head screws, and the upper plate is fixedly installed at the top of the vertical plate through two second inner hexagonal cylindrical head screws, so that the vertical plate and the upper plate are fixedly installed conveniently.

Preferably, the bottom ends of the two sides of the ejector rod are fixedly provided with limiting pins, limiting grooves are formed in the inner walls of the two sides of the vertical hole, and the two limiting pins are respectively in sliding connection with the corresponding limiting grooves to limit the ejector rod so as to prevent the ejector rod from rotating.

Preferably, a threaded hole is formed in the rear side of the vertical plate, a square-head cylindrical end holding screw is mounted in the threaded hole, and the square-head cylindrical end holding screw is movably connected with the rear side of the positioning mandrel to fix the positioning mandrel.

In the utility model, the brake adjuster rear draw bar head special-shaped workpiece drilling device is placed outside the positioning mandrel through the rear draw bar body so as to position the rear draw bar body through the positioning mandrel, then the square-head cylindrical end fastening screw is rotated and moved forwards through the matching with the threaded hole so as to push the positioning mandrel to fix the positioning mandrel, and then the ejector rod is matched with the threads of the supporting nut and moves upwards under the matching guiding action of the limiting pin and the limiting groove through the rotation of the supporting nut so as to compress and position the rear draw bar body and prevent the rear draw bar body from rotating;

in the utility model, the hexagonal nut is rotated to drive the pressing rod to slide to one side close to the vertical plate through the thread fit with the pressing rod so as to support and fix the rear pull head body, thereby ensuring that six degrees of freedom of the rear pull head body are completely limited, so that the rear pull head body has a unique fixed position in the tool, and then ensuring the accuracy of the drilling position through the accurate position of the drill sleeve in the tool;

the utility model has the advantages of reasonable design, guarantee effectively going on of drilling work through the all-round fixed to the work piece to through the drill bushing to the location of drilling position, avoided the time waste that the alignment caused, improved the machining efficiency of work piece when guaranteeing the product percent of pass.

Drawings

Fig. 1 is a schematic structural view of a special-shaped workpiece drilling device of a rear rod head of a brake adjuster according to the present invention;

FIG. 2 is a right-side partial sectional view of the special-shaped workpiece drilling device of the rear rod head of the brake adjuster of the present invention;

fig. 3 is a top partial cross-sectional view of the special-shaped workpiece drilling device of the rear rod head of the brake adjuster.

In the figure: 1. a base plate; 2. a vertical plate; 3. an upper plate; 4. positioning a mandrel; 5. drilling a sleeve; 6. a square-head cylindrical end fastening screw; 7. a hexagonal nut; 8. a gasket; 9. a first positioning pin; 10. a first socket cap head screw; 11. a top rod; 12. a support nut; 13. a spacing pin; 14. a second socket cap head screw; 15. a second positioning pin; 16. a pressure lever; 17. a rear slider body; 18. a limiting groove; 19. and (4) a vertical hole.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

Referring to fig. 1-3, a drilling device for a special-shaped workpiece of a rear pull rod head of a brake adjuster comprises a bottom plate 1, a vertical plate 2, an upper plate 3 and a rear pull head body 17, wherein a vertical hole 19 is formed in the top of the bottom plate 1, a push rod 11 is slidably connected in the vertical hole 19, the top end of the push rod 11 is movably connected with the bottom of the rear pull head body 17, a support nut 12 is sleeved on the outer side of the push rod 11 in a threaded manner, the support nut 12 is movably connected with the top of the bottom plate 1, two transverse holes are formed in one side of the vertical plate 2, a positioning mandrel 4 and a press rod 16 are respectively slidably mounted in the two transverse holes, the positioning mandrel 4 is movably connected with the inner wall of one side of the rear pull head body 17, the press rod 16 is movably connected with the inner wall of the other side of the rear pull head body 17, the other side of the vertical plate 2 is movably connected with one side of the rear pull head body 17, the top of the upper plate 3 is provided with a through hole, and a drill bush 5 is fixedly arranged in the through hole.

The utility model discloses in, fixed mounting has two first locating pins 9 in the

bottom plate

1, and 2 bottoms of riser are seted up two and first pinhole of 9 adaptations of first locating pin, fix a position riser 2 through first locating pin 9.

The utility model discloses in, fixed mounting has two second locating pins 15 in the upper plate 3, and two second pinholes with 15 adaptations of second locating pin are seted up at 2 tops of riser, fix a position upper plate 3 through second locating pin 15.

The utility model discloses in, bottom plate 1 is in 2 bottoms of riser through two first hexagon socket head cap screws 10 fixed mounting, and the riser 3 is through two second hexagon socket head cap screws 14 fixed mounting at 2 tops of riser, the fixed mounting of riser 2 and upper plate 3 of being convenient for.

The utility model discloses in, 11 both sides bottom of ejector pin equal fixed mounting have spacer pin 13, have all seted up spacing groove 18 on the 19 both sides inner walls in vertical hole, thereby two spacer pins 13 carry out spacing prevention its emergence rotation with the 18 sliding connection of spacing groove that correspond respectively to ejector pin 11.

The utility model discloses in, 2 backs of riser are opened and are equipped with the screw hole, and threaded hole internal thread installs square head cylinder end holding screw 6, and square head cylinder

end holding screw

6 and 4 rear side swing joint of location mandrel fix location mandrel 4.

In the utility model, when in use, the rear pull head body 17 is placed outside the positioning mandrel 4 through the rear pull head body 17 so as to position the rear pull head body 17 through the positioning mandrel 4, then the square-head cylindrical end fastening screw 6 is rotated and simultaneously slides forwards through matching with the threaded hole so as to abut against the positioning mandrel 4 to fix the positioning mandrel 4, then the ejector rod 11 is matched with the thread of the supporting nut 12 through rotating the supporting nut 12 and moves upwards under the guiding action of matching between the limiting pin 13 and the limiting groove 18 so as to compress and position the rear pull head body 17 to prevent the rear pull head body 17 from rotating, then the hexagonal nut 7 drives the pressing rod 16 to slide to one side close to the vertical plate 2 through the thread matching with the pressing rod 16 through rotating the hexagonal nut 7 so as to abut against and fix the rear pull head body 17, thereby ensuring that six degrees of freedom of the rear pull head body 17 are completely limited, so that the rear pull head body 17 has a unique fixed position in the tool, and then the accuracy of the drilling position is ensured through the accurate position of the drill bushing 5 in the tool.

Claims

1. A drilling device for a special-shaped workpiece of a rear pull rod head of a brake adjuster comprises a bottom plate (1), a vertical plate (2), an upper plate (3) and a rear pull head body (17), and is characterized in that a vertical hole (19) is formed in the top of the bottom plate (1), a push rod (11) is connected in the vertical hole (19) in a sliding manner, the top end of the push rod (11) is movably connected with the bottom of the rear pull head body (17), a support nut (12) is sleeved on the outer side of the push rod (11) in a threaded manner, the support nut (12) is movably connected with the top of the bottom plate (1), two transverse holes are formed in one side of the vertical plate (2), a positioning mandrel (4) and a pressing rod (16) are respectively installed in the two transverse holes in a sliding manner, the positioning mandrel (4) is movably connected with the inner wall of one side of the rear pull head body (17), the pressing rod (16) is movably connected with the, washer (8) one side and hexagon nut (7) one side swing joint, washer (8) opposite side and riser (2) one side swing joint, riser (2) opposite side and back pull head body (17) one side swing joint, the through-hole has been seted up at upper plate (3) top, and fixed mounting has drill bushing (5) in the through-hole.

2. The special-shaped workpiece drilling device for the back rod head of the brake adjuster according to claim 1 is characterized in that two first positioning pins (9) are fixedly installed in the bottom plate (1), and two first pin holes matched with the first positioning pins (9) are formed in the bottom of the vertical plate (2).

3. The special-shaped workpiece drilling device for the back rod head of the brake adjuster according to claim 1 is characterized in that two second positioning pins (15) are fixedly mounted in the upper plate (3), and two second pin holes matched with the second positioning pins (15) are formed in the top of the vertical plate (2).

4. The special-shaped workpiece drilling device for the back rod head of the brake adjuster is characterized in that the bottom plate (1) is fixedly arranged at the bottom of the vertical plate (2) through two first inner hexagonal socket head cap screws (10), and the upper plate (3) is fixedly arranged at the top of the vertical plate (2) through two second inner hexagonal socket head cap screws (14).

5. The special-shaped workpiece drilling device for the back rod head of the brake adjuster according to claim 1, wherein the bottom ends of the two sides of the ejector rod (11) are fixedly provided with limiting pins (13), the inner walls of the two sides of the vertical hole (19) are respectively provided with a limiting groove (18), and the two limiting pins (13) are respectively connected with the corresponding limiting grooves (18) in a sliding manner.

6. The special-shaped workpiece drilling device for the brake adjuster rear pull rod head according to claim 1 is characterized in that a threaded hole is formed in the rear side of the vertical plate (2), a square-head cylindrical end holding screw (6) is mounted in the threaded hole, and the square-head cylindrical end holding screw (6) is movably connected with the rear side of the positioning mandrel (4).