CN112934897A

CN112934897A - Brake drum cleaning jig

Info

Publication number: CN112934897A
Application number: CN202110132796.6A
Authority: CN
Inventors: 胡立国; 黄强
Original assignee: Hangzhou Yingfeichuang Machinery Equipment Co ltd
Current assignee: Yichuang Intelligent Equipment Shaoxing Co ltd
Priority date: 2021-02-01
Filing date: 2021-02-01
Publication date: 2021-06-11
Anticipated expiration: 2041-02-01
Also published as: CN112934897B

Abstract

The invention discloses a brake drum cleaning fixture, comprising a central stepped shaft and a transmission rod. A rotating base is fixed on the central stepped shaft through a bearing, a hinged seat is fixed on the upper end of the rotating base, and the upper end of the hinged base is fixed A sliding shaft is fixed, a return spring is sleeved on the sliding shaft, a sliding block is sleeved on the sliding shaft above the restoring spring, a limit stop block is fixed on the sliding shaft above the sliding block, and the hinge seat is Four clamping pieces are evenly hinged in the circumferential direction, the upper middle part of each clamping piece is hinged with one end of a transmission rod, and the other end of each transmission rod is hingedly connected with the sliding block. The present invention can clamp brake drum workpieces with different diameters. Since the hinge part, the support part and the clamping arm part of the clamping part form a Y-shaped integrated bracket structure, and can rotate around the hinge part, each clamping arm part can Circumferences of different diameters can be formed so that brake drums of different diameters can be clamped.

Description

Brake drum cleaning jig

Technical Field

The invention relates to the technical field of automobile manufacturing, in particular to a brake drum cleaning jig.

Background

A brake is a component in a braking system that generates a braking force that resists movement or a tendency of movement of a vehicle. Automobile brakes, except for various retarders, are almost all friction brakes that generate braking torque by friction between a fixed member and a working surface of a rotating member.

Friction brakes widely used in various types of automobiles are classified into drum type and disc type according to the difference in rotating elements. The rotating element in the drum brake friction pair is a brake drum, and the cylindrical inner surface of the brake drum is a working surface.

The inner surface and the outer surface of the brake drum need to be cleaned and painted in the production process of the brake drum, the current cleaning mode adopts a fixed high-pressure water gun head for cleaning for fixed clamping, but partial dead angles can not be cleaned completely, the cleaning efficiency is low, the brake drum needs to rotate and the clamping is stable in the cleaning process, and the existing clamping tool can not meet the production requirements.

The brake drums with different diameters need to be produced in production, the existing brake drum clamping tool only supports the brake drum with one diameter specification, if the brake drums with different diameters need to be produced, the clamping tool needs to be replaced, more replacement time needs to be consumed, and meanwhile, the production cost is also increased.

A brake drum cleaning jig is designed aiming at the problems.

Disclosure of Invention

The invention aims to provide a brake drum cleaning jig which has the advantages of clamping workpieces with different diameters and rotating functions and solves the problems that in the existing cleaning mode, a fixed high-pressure water gun head is adopted for cleaning, part of dead corners cannot be completely cleaned, the cleaning efficiency is low, the brake drum needs to rotate and stably clamp in the cleaning process, and the existing clamping tool cannot meet the production requirements.

In order to achieve the purpose, the invention adopts the following technical scheme: the utility model provides a brake drum washs tool, includes central step shaft, transfer line, be fixed with rotating base on the central step shaft and through the bearing, the rotating base upper end is fixed with articulated seat, articulated seat upper end is fixed with the slide-spindle, the cover is equipped with reset spring on the slide-spindle, the cover is equipped with the slider on the slide-spindle of reset spring top, be fixed with limited steric hindrance dog on the slide-spindle of slider top, articulated seat circumference evenly articulates there are four clamping pieces, each clamping piece top middle part all articulates with the one end of a transfer line, each the other end of transfer line all with articulated link block.

Furthermore, each clamping piece comprises a hinge part, the hinge part extends outwards linearly to serve as a supporting part, the connecting part of the hinge part and the supporting part extends upwards to serve as a clamping arm part, the hinge part is hinged with a hinge seat, and the transmission rod is hinged with the upper side of the hinge part.

Furthermore, the hinged part, the supporting part and the clamping arm part form a laterally-inverted Y-shaped integrated bracket structure.

Further, the tail end of the clamping arm part is provided with a rolling bearing.

Furthermore, rotating base includes central axle sleeve fixed part, outside ring portion, through the link fixed connection of circumference evenly distributed between central axle sleeve fixed part and the outside ring portion, the outside of outside ring portion is fixed with a plurality of circumference evenly distributed's drive blade.

Further, thrust bearings are arranged at the upper end and the lower end of the central shaft sleeve fixing part, the central shaft sleeve fixing part is sleeved and radially connected with the central stepped shaft through a radial bearing, and a fixing screw for compressing the thrust bearings is fixed at the top end of the central stepped shaft.

Compared with the prior art, the invention has the beneficial effects that:

1. meanwhile, the clamping device has the functions of stable clamping and circumferential rotation, the clamping force is the gravity of a workpiece, the brake drum is directly placed above the rotating base and falls down without applying external power, the clamping of the workpiece can be finished, and the clamping and stabilizing functions are convenient;

2. the clamping device has the advantages that brake drum workpieces with different diameters can be clamped, and the hinged portion, the supporting portion and the clamping arm portion of the clamping piece form a Y-shaped integrated support structure and can rotate around the hinged portion, so that the clamping arm portions can form circumferences with different diameters in a surrounding mode, and brake drums with different diameters can be clamped.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:

fig. 1 is a schematic perspective view of a brake drum cleaning jig according to the present invention;

fig. 2 is a schematic cross-sectional structural view of a brake drum cleaning jig according to the present invention.

In the figure: 1-central stepped shaft, 2-rotating base, 3-hinged base, 4-clamping piece, 5-sliding shaft, 6-transmission rod, 7-sliding block, 8-reset spring, 9-fixing screw, 10-limit stop block, 21-central shaft sleeve fixing part, 22-connecting frame, 23-outer circular part, 24-driving blade, 41-hinged part, 42-supporting part, 43-clamping arm part and 44-rolling bearing.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-2, a brake drum cleaning jig includes central stepped shaft 1, transfer line 6, be fixed with rotating base 2 on the central stepped shaft 1 and through the bearing, rotating base 2 upper end is fixed with articulated seat 3, articulated seat 3 upper end is fixed with slide-shaft 5, the cover is equipped with reset spring 8 on the slide-shaft 5, the cover is equipped with slider 7 on the slide-shaft 5 of reset spring 8 top, be fixed with limited steric hindrance dog 10 on the slide-shaft 5 of slider 7 top, 3 even articulated four clamping pieces 4 of articulated seat circumference, each clamping piece 4 top middle part all articulates with the one end of a transfer line 6, each the other end of transfer line 6 all with articulated link block 7.

Each of the clamping members 4 includes a hinge portion 41, the hinge portion 41 extends linearly outward as a support portion 42, a connecting portion between the hinge portion 41 and the support portion 42 extends upward from the support portion 42 as a clamping arm portion 43, the hinge portion 41 is hinged to the hinge base 3, and the transmission lever 6 is hinged to the upper side of the hinge portion 41.

The hinge portion 41, the support portion 42 and the clamping arm portion 43 form a laterally-inverted Y-shaped integrated bracket structure.

The holding arm portion 43 is provided at its distal end with a rolling bearing 44.

Rotating base 2 includes central axle sleeve fixed part 21, outside ring portion 23, through circumference evenly distributed's link 22 fixed connection between central axle sleeve fixed part 21 and the outside ring portion 23, be fixed with a plurality of circumference evenly distributed's drive vane 24 outside the outside ring portion 23.

Thrust bearings are arranged at the upper end and the lower end of the central shaft sleeve fixing part 21, the central shaft sleeve fixing part 21 is sleeved and radially connected with the central stepped shaft 1 through a radial bearing, and a fixing screw 9 for pressing the thrust bearings is fixed at the top end of the central stepped shaft 1.

When the device is used, the central stepped shaft 1 is fixed at a designated position, when a workpiece needs to be fixed, a brake drum workpiece is directly placed on the supporting part 42, the supporting part 42 drives the clamping arm part 43 to rotate around the hinged part 41 under the action of gravity, finally, each rolling bearing 44 is contacted with the inner wall of the brake drum to finish fixed clamping, and meanwhile, each hinged part 41 pulls the sliding block 7 downwards through the corresponding transmission rod 6 to finish the compression of the return spring 8; when the brake drum workpiece is removed upwards, the supporting part 42 is free from gravity, the slide block 7 rotates the clamping arm part 43 upwards under the action of the return spring 8 by driving the transmission rod 6, the clamping is loosened, and the mechanism is reset.

The invention is not described in detail, but is well known to those skilled in the art.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A brake drum cleaning fixture, comprising a central stepped shaft (1) and a transmission rod (6), characterized in that a rotating base (2) is fixed on the central stepped shaft (1) and through a bearing, and the A hinge seat (3) is fixed on the upper end of the rotating base (2), a sliding shaft (5) is fixed on the upper end of the hinge seat (3), and a return spring (8) is sleeved on the sliding shaft (5). A sliding block (7) is sleeved on the sliding shaft (5) above the spring (8), a limit stop block (10) is fixed on the sliding shaft (5) above the sliding block (7), and the hinge seat ( 3) Four clamping members (4) are evenly hinged in the circumferential direction, the upper middle of each clamping member (4) is hinged with one end of a transmission rod (6), and the other end of each transmission rod (6) is hinged Both are hingedly connected to the slider (7).

2. The brake drum cleaning jig according to claim 1, wherein each of the clamping members (4) includes a hinge portion (41), and the hinge portion (41) extends straight to the outside as a support part (42), the joint of the hinge part (41) and the support part (42) extends to the upper position of the support part (42) side as a clamping arm part (43), the hinge part (41) and the hinge seat (3) ) is hingedly connected, and the transmission rod (6) is hinged with the upper side of the hinge portion (41).

3. The brake drum cleaning jig according to claim 2, wherein the hinge part (41), the support part (42), and the clamping arm part (43) form a side-down Y-shaped integrated bracket structure.

4. The brake drum cleaning jig according to claim 2, wherein a rolling bearing (44) is provided at the end of the clamping arm (43).

5 . The brake drum cleaning fixture according to claim 1 , wherein the rotating base ( 2 ) comprises a central bushing fixing portion ( 21 ) and an outer annular portion ( 23 ), and the central bushing The fixed portion (21) and the outer annular portion (23) are fixedly connected by connecting frames (22) that are evenly distributed in the circumferential direction, and a plurality of driving blades (23) that are evenly distributed in the circumferential direction are fixed outside the outer annular portion (23). twenty four).

6. The brake drum cleaning jig according to any one of claims 1 to 5, characterized in that: the upper and lower ends of the central bushing fixing portion (21) are provided with thrust bearings, and the central bushing The fixed part (21) is sleeved and connected radially with the central stepped shaft (1) through a radial bearing, and the top of the central stepped shaft (1) is fixed with a fixing screw (9) for pressing the thrust bearing.