CN215697783U

CN215697783U - Casting mold for brake drum

Info

Publication number: CN215697783U
Application number: CN202121221501.4U
Authority: CN
Inventors: 商宇游
Original assignee: Suzhou Bodong Precision Technology Co ltd
Current assignee: Suzhou Bodong Precision Technology Co ltd
Priority date: 2021-06-02
Filing date: 2021-06-02
Publication date: 2022-02-01
Anticipated expiration: 2031-06-02

Abstract

The utility model discloses a brake drum casting mold which comprises a lower mold base and an upper mold plate, wherein the left end and the right end of the top surface of the lower mold base are respectively and vertically provided with a first positioning hole, the top surface of the lower mold base on the inner side of the first positioning hole is vertically provided with a first molding cavity, the middle part of the bottom end of the inner wall of the first molding cavity on the inner side of the limiting hole is vertically provided with a U-shaped positioning groove, the top surface of the lower mold base on the outer side of the first molding cavity is provided with a second molding cavity, the inner wall of a second positioning hole on the bottom surface of the upper mold plate is vertically provided with a spring rod, and the middle part of the bottom surface of the upper mold plate on the inner side of the second positioning hole is respectively and vertically provided with a first clamping groove and a second clamping groove. The utility model completes the shaping operation of the inner space of the brake drum by utilizing the matching of the support body, the first molding cavity and the second molding cavity, and the two molding cavities can complete the integral molding operation of two surfaces of the brake drum on the basis of one-time processing, and the utility model has high processing efficiency, stable quality and good use effect.

Description

Casting mold for brake drum

Technical Field

The utility model relates to the technical field of molds, in particular to a casting mold for a brake drum.

Background

The mould is various moulds and tools for obtaining required products by injection molding, blow molding, extrusion, die casting or forging forming, smelting, stamping and other methods in industrial production. In short, a mold is a tool used to make a shaped article, the tool being made up of various parts, different molds being made up of different parts. The processing of the appearance of an article is realized mainly through the change of the physical state of a formed material. The element has the name of "industrial mother". The blank is formed into a tool with a specific shape and size under the action of external force. The method is widely applied to blanking, die forging, cold heading, extrusion, powder metallurgy part pressing, pressure casting and the forming processing of compression molding or injection molding of products such as engineering plastics, rubber, ceramics and the like. The mold generally comprises a movable mold and a fixed mold (or a male mold and a female mold), which can be separated or combined. When the blank is closed, the blank is injected into the die cavity for forming. The die is a precise tool, has a complex shape, bears the expansion force of a blank, has higher requirements on structural strength, rigidity, surface hardness, surface roughness and processing precision, and the development level of die production is one of important marks of the mechanical manufacturing level. The existing casting mould for processing the brake drum is mostly finished by utilizing the flow of liquid metal in a pouring channel, for example, the patent with the application number of 201921111571.7 and the name of the casting mould for the brake drum, the demoulding treatment after the forming is long in time consumption and high in difficulty, and a processed drum type is unstable and poor in practicability.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a casting mold for a brake drum, which aims to solve the problems in the prior art.

In order to achieve the purpose, the utility model provides the following technical scheme: a brake drum pouring mold comprises a lower mold base and an upper mold plate, wherein a plurality of circular first positioning holes are vertically formed in the left end and the right end of the top surface of the lower mold base respectively, a first molding cavity is vertically and fixedly arranged on the top surface of the lower mold base on the inner side of each first positioning hole through a groove, a plurality of limiting holes are vertically formed in the bottom end of the inner wall of the first molding cavity in a circular shape, a U-shaped positioning groove is vertically formed in the middle of the bottom end of the inner wall of the first molding cavity on the inner side of each limiting hole, a second molding cavity is vertically formed in the top surface of the lower mold base on the outer side of each first molding cavity, a plurality of assembling holes are vertically formed in the bottom end of the inner wall of the second molding cavity on the inner side of each assembling hole, a sliding groove is vertically formed in the middle of the bottom end of the inner wall of the second molding cavity on the inner side of each assembling hole, the upper mold plate is vertically movably arranged above the lower mold base, and a second positioning hole is vertically formed in the surface of the upper mold plate close to one side of the lower mold base, the inner wall of the second positioning hole is vertically and fixedly provided with a spring rod, the middle part of the bottom surface of the upper template at the inner side of the second positioning hole is respectively and vertically provided with a first clamping groove and a second clamping groove, and the middle part of one side surface of the upper template far away from the first clamping groove and the second clamping groove is respectively and vertically provided with a circular rotating hole.

Preferably, the middle part of the bottom end of the inner wall of the first positioning hole is vertically provided with a wear pad, the first positioning hole is the same as the second positioning hole in diameter, and one end, far away from the inner wall of the second positioning hole, of the spring rod is arranged inside the first positioning hole.

Preferably, the first molding cavity and the second molding cavity have the same inner diameter and are respectively and movably provided with a support body corresponding to the first clamping groove and the second clamping groove.

Preferably, the section plane of the support body is of a Chinese character 'zhong' structure and is respectively arranged between the positioning groove and the rotating hole, and between the sliding groove and the rotating hole, and the bottom surface of the support body is respectively provided with clamping columns with the same number as the limiting holes and the assembling holes in a circular shape.

Preferably, the cutting surface of the first clamping groove is of a cross structure, and the cutting surface of the second clamping groove is of a T-shaped structure, and the inner diameter of the second clamping groove is the same as that of the first molding cavity and that of the second molding cavity respectively.

Preferably, the middle part of the surface of one side of the lower die base is longitudinally provided with a material injection hole and is respectively communicated with the inner cavities of the first molding cavity and the second molding cavity through a pi-shaped diversion trench.

Compared with the prior art, the utility model has the beneficial effects that:

1. the brake drum shaping device is characterized in that supporting bodies are arranged in a first shaping die cavity and a first clamping groove between the lower die base and the upper die plate, and a second shaping die cavity and a second clamping groove between the lower die base and the upper die plate respectively, the shaping operation of the inner space of the brake drum is completed by the aid of cooperation between the supporting bodies and the first shaping die cavity and cooperation between the supporting bodies and the second shaping die cavity, the two die cavities can complete integral shaping operation of two surfaces of the brake drum on the basis of one-time processing, and the brake drum shaping device is high in processing efficiency, stable in quality and good in using effect.

2. Spacing hole, equipment hole and mutually support with the screens post on supporter bottom surface have been seted up respectively to the inner wall in first die cavity, second die cavity, accomplish the trompil operation when can accomplishing brake drum type machining operation, reduce the operation process in order to improve production efficiency, and the practicality is strong.

Drawings

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

FIG. 1 is a structural cross-sectional view of the present invention;

FIG. 2 is a side elevation, cross-sectional expanded view of the present invention;

FIG. 3 is a top view of the surface structure of the lower die base of the present invention.

In the figure: 1. a lower die holder; 2. mounting a template; 3. a first positioning hole; 4. a first molding cavity; 5. a limiting hole; 6. positioning a groove; 7. a second molding cavity; 8. assembling holes; 9. a sliding groove; 10. a second positioning hole; 11. a spring lever; 12. a first clamping groove; 13. a second clamping groove; 14. rotating the hole; 15. a wear pad; 16. a support body; 17. a position clamping column; 18. a material injection hole; 19. and a diversion trench.

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 and 3, in an embodiment of the present invention, a brake drum casting mold includes a lower mold base 1 and an upper mold plate 2, a plurality of circular first positioning holes 3 are respectively vertically formed at left and right ends of a top surface of the lower mold base 1, a first molding cavity 4 is vertically and fixedly disposed on the top surface of the lower mold base 1 inside the first positioning holes 3 by forming grooves, a plurality of limiting holes 5 are vertically formed at a bottom end of an inner wall of the first molding cavity 4 in a circular shape, a U-shaped positioning groove 6 is vertically formed in a middle portion of a bottom end of an inner wall of the first molding cavity 4 inside the limiting holes 5, a second molding cavity 7 is vertically formed on the top surface of the lower mold base 1 outside the first molding cavity 4, a plurality of assembling holes 8 are vertically formed at a bottom end of an inner wall of the second molding cavity 7 inside the assembling holes 8, a sliding groove 9 is vertically formed in a middle portion of a bottom end of the inner wall of the second molding cavity 7 inside the assembling holes 8, the upper mold plate 2 is vertically and movably disposed above the lower mold base 1, a second positioning hole 10 is vertically formed in the surface of one side, close to the lower die holder 1, of the upper die plate 2, a spring rod 11 is vertically and fixedly arranged on the inner wall of the second positioning hole 10, a first clamping groove 12 and a second clamping groove 13 are vertically formed in the middle of the surface of the bottom of the upper die plate 2 on the inner side of the second positioning hole 10 respectively, and a circular rotating hole 14 is vertically formed in the middle of the surface of one side, far away from the first clamping groove 12 and the second clamping groove 13, of the upper die plate 2 respectively; the middle part of the bottom end of the inner wall of the first positioning hole 3 is respectively and vertically provided with a wear-resistant pad 15, the first positioning hole 3 and the second positioning hole 10 have the same aperture, and one end of the spring rod 11, which is far away from the inner wall of the second positioning hole 10, is arranged inside the first positioning hole 3, so that the requirement of rapid demoulding treatment is met; the inner diameters of the first molding cavity 4 and the second molding cavity 7 are the same, and supporting bodies 16 are respectively and movably arranged between the first clamping groove 12 and the second clamping groove 13, so that the molding process is facilitated, and the requirements for processing the shapes of brake drums with different thicknesses are met; the section of the support body 16 is of a middle-character-shaped structure and is respectively arranged between the positioning groove 6 and the rotating hole 14, and between the sliding groove 9 and the rotating hole 14, the bottom surface of the support body 16 is respectively provided with clamping columns 17 in a circular shape, the quantity of the clamping columns is the same as that of the limiting holes 5 and the assembling holes 8, and the synchronous hole opening operation requirement during pouring is met; the section of the first clamping groove 12 is of a cross structure, the section of the second clamping groove 13 is of a T-shaped structure, and the inner diameter of the second clamping groove is the same as the inner diameter of the first molding cavity 4 and the inner diameter of the second molding cavity 7 respectively, so that the molding operation requirement of the clamping structure at the joint of the brake drum is met; the middle part of one side surface of the lower die holder 1 is longitudinally provided with a material injection hole 18 which is respectively communicated with the inner cavities of the first molding cavity 4 and the second molding cavity 7 through a Pi-shaped diversion trench 19, so that the requirement of continuous material injection is met.

The working principle and the using process of the utility model are as follows: during the use choose the supporter 16 that the size matches for use to arrange in between die holder 1 and cope match-plate pattern 2 in order to satisfy the different thickness processing demands of brake drum according to the demand, and keep away from the one end of second locating hole 10 inner wall with spring beam 11 and inject in the inside of first locating hole 3 and fixed, with the processing raw materials by annotating material hole 18 in guiding gutter 19 drainage to first moulding chamber 4 and second moulding chamber 7 respectively, can accomplish trompil operation when the drum type is made the processing demand, and the whole moulding operation of brake drum two sides can be accomplished in once processing, high processing efficiency, stable quality, excellent in use effect.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the utility model. 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. The utility model provides a brake drum casting mold, includes die holder (1), cope match-plate pattern (2), its characterized in that: the die comprises a lower die holder (1), wherein the left end and the right end of the top surface of the lower die holder (1) are respectively vertically provided with a plurality of circular first positioning holes (3), the top surface of the lower die holder (1) at the inner side of each first positioning hole (3) is vertically and fixedly provided with a first die forming cavity (4) through a groove, the bottom end of the inner wall of each first die forming cavity (4) is circularly and vertically provided with a plurality of limiting holes (5), the middle part of the bottom end of the inner wall of each first die forming cavity (4) at the inner side of each limiting hole (5) is vertically provided with a U-shaped positioning groove (6), the top surface of the lower die holder (1) at the outer side of each first die forming cavity (4) is vertically provided with a second die forming cavity (7), the bottom end of the inner wall of each second die forming cavity (7) is vertically provided with a plurality of assembling holes (8), the middle part of the bottom end of the inner wall of each second die forming cavity (7) at the inner side of each assembling hole (8) is vertically provided with a sliding groove (9), the upper die plate (2) is vertically movably arranged above the lower die base (1), a second positioning hole (10) is vertically formed in the surface of one side, close to the lower die base (1), of the upper die plate (2), a spring rod (11) is vertically and fixedly arranged on the inner wall of the second positioning hole (10), a first clamping groove (12) and a second clamping groove (13) are vertically formed in the middle of the surface of the bottom of the upper die plate (2) on the inner side of the second positioning hole (10) respectively, and a circular rotating hole (14) is vertically formed in the middle of the surface of one side, far away from the first clamping groove (12) and the second clamping groove (13), of the upper die plate (2).

2. The brake drum casting mold of claim 1, wherein: the wear-resistant pad (15) is vertically arranged in the middle of the bottom end of the inner wall of the first positioning hole (3) respectively, the first positioning hole (3) is the same as the second positioning hole (10) in aperture, and one end, far away from the inner wall of the second positioning hole (10), of the spring rod (11) is arranged inside the first positioning hole (3).

3. The brake drum casting mold of claim 1, wherein: the inner diameters of the first molding cavity (4) and the second molding cavity (7) are the same, and supporting bodies (16) are movably arranged between the first clamping groove (12) and the second clamping groove (13) correspondingly.

4. The brake drum casting mold of claim 3, wherein: the section of the support body (16) is of a Chinese character 'zhong' structure and is respectively arranged between the positioning groove (6) and the rotating hole (14) and between the sliding groove (9) and the rotating hole (14), and the bottom surface of the support body (16) is respectively provided with clamping columns (17) which are in the same number as the limiting holes (5) and the assembling holes (8) in a circular shape.

5. The brake drum casting mold of claim 1, wherein: the section of the first clamping groove (12) is of a cross structure, and the section of the second clamping groove (13) is of a T-shaped structure, and the inner diameter of the second clamping groove is the same as that of the first molding cavity (4) and that of the second molding cavity (7).

6. The brake drum casting mold of claim 1, wherein: and the middle part of the surface of one side of the lower die holder (1) is longitudinally provided with a material injection hole (18) and is respectively communicated with the inner cavities of the first molding cavity (4) and the second molding cavity (7) through a Pi-shaped diversion trench (19).