CN214684165U

CN214684165U - Single-layer casting mold for trailer brake drum

Info

Publication number: CN214684165U
Application number: CN202120900507.8U
Authority: CN
Inventors: 麻常浩; 崔洪文; 张海峰; 范庆波; 李兵
Original assignee: Longkou Jiaodong Machinery Parts Co ltd
Current assignee: Longkou Jiaodong Machinery Parts Co ltd
Priority date: 2021-04-28
Filing date: 2021-04-28
Publication date: 2021-11-12
Anticipated expiration: 2031-04-28

Abstract

The utility model belongs to the field of workpiece casting, and particularly discloses a single-layer casting mold of a trailer brake drum, which comprises a lower mold, an upper mold and a base, wherein a jacking plate is laid in a molding cavity, and a guide channel which is vertically communicated with the inside of the molding cavity is reserved at the bottom of the lower mold; the lifting seat is vertically provided with an opening avoiding rod which is correspondingly inserted into each guide channel; the bottom surface of the upper die is provided with a male die which is matched with and embedded into the forming die cavity and plugs the opening surface of the forming die cavity, and the bottom surface of the male die is reserved with positioning grooves for inserting the opening avoiding rods. The utility model discloses a slide in the shaping die cavity of lower mould and run through the trompil that is provided with the liftable and dodge the pole, can utilize the trompil to dodge the pole and reserve out the trompil position when the casting shaping, dodge the pole with the trompil after the shaping and withdraw from, the automatic trompil structure that forms can utilize the trompil to dodge rising of pole simultaneously with the ejecting shaping die cavity of formed part, realize quick drawing of patterns, when simplifying manufacturing procedure, the drawing of patterns of being convenient for improves machining efficiency.

Description

Single-layer casting mold for trailer brake drum

Technical Field

The utility model relates to a work piece casting field specifically is a single-deck casting mould of trailer brake drum.

Background

The trailer is a truck and is divided into a semi-trailer and a full trailer. The trailer can only be combined with a tractor or other vehicle to form a complete vehicle. The total weight of the trailer is borne by itself and is called a full trailer, also referred to as a trailer for short. The vehicle trailer is an unpowered road vehicle which can be normally used only by being towed by an automobile according to the design and technical characteristics and is used for carrying personnel or goods.

A typical drum brake consists of a rotating part, a fixed part, an actuating part and a position adjusting device. It is composed of brake bottom plate, brake cylinder, brake shoe, spring, pin and brake drum. Drum brakes have an iron casting shaped like a tambourine, called a brake drum, which is fixed to the tire and rotates at the same speed. Drum brakes are lower in cost and higher in absolute braking force.

The brake drum for the trailer is generally formed by casting and then is subjected to hole opening operation, in the existing production, the casting forming and hole opening processes are separately carried out, the complexity of the processes is increased, the production time is prolonged, and meanwhile, when the brake drum is cast, the formed workpiece is not easy to realize quick demoulding, and the working efficiency is reduced.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a single-deck casting mould of trailer brake drum to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: a single-layer casting die for a trailer brake drum comprises a lower die, an upper die and a base, wherein a forming die cavity is arranged in the middle of the lower die, a jacking plate is paved in the forming die cavity, and a guide channel which is vertically communicated with the inside of the forming die cavity is reserved at the bottom of the lower die; the base is arranged under the lower die, two ends of the base are connected with the lower die through supports, a lifting seat is arranged between the two supports, and the lifting seat is vertically provided with an opening avoiding rod which is correspondingly inserted into each guide channel; the upper die is arranged right above the lower die, guide rods are symmetrically arranged at two ends of the top surface of the lower die, the upper die is sleeved on the guide rods in a sliding mode, a male die which is matched with and embedded into the forming die cavity and blocks the opening surface of the forming die cavity is arranged on the bottom surface of the upper die, and positioning grooves for the insertion of the opening avoiding rods are reserved on the bottom surface of the male die.

Preferably, the guide channels are arranged in a plurality and distributed in an annular array, and the positions of the guide channels correspond to the positions of the holes on the brake drum to be formed one by one.

Preferably, the middle part of the opening avoiding rod is fixedly provided with a sealing block which is embedded in the guide channel in a sliding mode, and each opening avoiding rod penetrates through the jacking plate and is inserted into the forming die cavity.

Preferably, a through hole for each opening avoiding rod to pass through is reserved on the jacking plate, and the inner diameter of the through hole is smaller than the outer diameter of the sealing block.

Preferably, two linear guide rails are respectively installed in the opposite surfaces of the two brackets, and two ends of the lifting seat are fixedly connected with the sliding blocks of the two linear guide rails through connecting rods.

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

the utility model discloses a slide in the shaping die cavity of lower mould and run through the trompil that is provided with the liftable and dodge the pole, can utilize the trompil to dodge the pole and reserve out the trompil position when the casting shaping, dodge the pole with the trompil after the shaping and withdraw from, the automatic trompil structure that forms can utilize the trompil to dodge rising of pole simultaneously with the ejecting shaping die cavity of formed part, realize quick drawing of patterns, when simplifying manufacturing procedure, the drawing of patterns of being convenient for improves machining efficiency.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention;

fig. 2 is a schematic view of the specific structure of the lifting seat and the hole-forming avoiding rod of the present invention;

fig. 3 is a schematic structural diagram of the jacking plate of the present invention.

In the figure: 1. a lower die; 2. an upper die; 3. a base; 4. molding a mold cavity; 5. a jacking plate; 6. a guide channel; 7. a support; 8. a lifting seat; 9. a hole-opening avoiding rod; 10. a sealing block; 11. a through hole; 12. a linear guide rail; 13. a connecting rod; 14. a guide bar; 15. a male die; 16. and (6) positioning a groove.

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. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "vertical", "upper", "lower", "horizontal", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention.

In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

Referring to fig. 1-3, the present invention provides a technical solution: a single-layer casting die of a trailer brake drum comprises a lower die 1, an upper die 2 and a base 3, wherein a forming die cavity 4 is arranged in the middle of the lower die 1, a jacking plate 5 is laid in the forming die cavity 4, and a guide channel 6 vertically communicated with the inside of the forming die cavity 4 is reserved at the bottom of the lower die 1; the base 3 is arranged under the lower die 1, two ends of the base are connected with the lower die 1 through supports 7, a lifting seat 8 is arranged between the two supports 7, and the lifting seat 8 is vertically provided with an opening avoiding rod 9 correspondingly inserted into each guide channel 6; the upper die 2 is arranged right above the lower die 1, guide rods 14 are symmetrically arranged at two ends of the top surface of the lower die 1, the upper die 2 is sleeved on the guide rods 14 in a sliding mode, a male die 15 which is matched with the bottom surface of the upper die 2 and is embedded into the forming die cavity 4 and plugs the opening surface of the forming die cavity 4 is arranged at the bottom surface of the male die 15, and positioning grooves 16 for enabling the openings to avoid the insertion of the rods 9 are reserved in the bottom surface of the male die 15.

Furthermore, the guide channels 6 are arranged in a plurality and distributed in an annular array, and the positions of the guide channels 6 correspond to the positions of the holes on the brake drum to be formed one by one.

Furthermore, a sealing block 10 which is slidably embedded in the guide channel 6 is fixed in the middle of the opening avoiding rod 9, and each opening avoiding rod 9 penetrates through the jacking plate 5 and is inserted into the molding cavity 4.

Furthermore, a through hole 11 for each opening avoiding rod 9 to pass through is reserved on the jacking plate 5, and the inner diameter of the through hole 11 is smaller than the outer diameter of the sealing block 10.

Furthermore, two linear guide rails 12 are respectively installed in the opposite surfaces of the two brackets 7, and two ends of the lifting seat 8 are fixedly connected with the sliding blocks of the two linear guide rails 12 through connecting rods 13.

The working principle is as follows: the electric equipment is powered by an external power supply and is uniformly controlled by an industrial personal computer, and the upper die 2 is arranged on an external die opening and closing driving mechanism to realize the die opening and closing operation.

When the device works, in an initial state, the jacking plate 5 is laid at the bottom of the molding die cavity 4, the opening avoiding rod 9 is inserted into the molding die cavity 4, the surface of the sealing block 10 in the middle of the opening avoiding rod is just flush with the inner wall of the bottom surface of the molding die cavity 4, and the joint of the guide channel 6 and the molding die cavity 4 is sealed; (a layer of non-stick coating is arranged on the surface of the opening avoiding rod 9 or a layer of lubricating oil is smeared on the surface of the opening avoiding rod) pouring a fixed amount of casting liquid into the molding die cavity 4, then the lower die 1 moves downwards to enable the male die 15 to be embedded into the molding die cavity 4, and the opening surface in the molding die cavity 4 is blocked, in the process, each opening avoiding rod 9 is just inserted into the positioning groove 16 of the male die 15, so that the upper die 2 and the lower die 1 are accurately positioned; due to the occupation of the open pore avoiding rod 9, the casting liquid cannot be injected into the hole position of the molding die cavity 4, so that the open pore position is reserved.

After the forming, the two linear guide rails 12 on the bracket 7 are started to synchronously run, the lifting seat 8 is moved downwards, the opening avoiding rod 9 is pulled to descend and mutually slide with the formed part, and therefore the opening avoiding rod 9 and the formed part are mutually separated; then the opening avoiding rod 9 is driven to ascend, the sealing block 10 ascends until the middle part of the opening avoiding rod reaches the top of the guide channel 6, the opening avoiding rod continuously ascends, the sealing block 10 jacks the jacking plate 5 at the moment, so that the formed part is ejected out of the forming die cavity 4, the formed part is directly taken down, and quick demolding is realized; the lifting seat 8 is then reset to the initial position. The demoulding is convenient and the processing efficiency is improved while the processing procedure is simplified.

It is worth noting that: the whole device realizes control over the device through the master control button, and the device matched with the control button is common equipment, belongs to the existing mature technology, and is not repeated for the electrical connection relation and the specific circuit structure.

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 single-layer casting die of a trailer brake drum comprises a lower die (1), an upper die (2) and a base (3), and is characterized in that a forming die cavity (4) is arranged in the middle of the lower die (1), a jacking plate (5) is laid in the forming die cavity (4), and a guide channel (6) vertically communicated with the inside of the forming die cavity (4) is reserved at the bottom of the lower die (1); the base (3) is arranged right below the lower die (1), two ends of the base are connected with the lower die (1) through supports (7), a lifting seat (8) is arranged between the two supports (7), and the lifting seat (8) is vertically provided with an opening avoiding rod (9) which is correspondingly inserted into each guide channel (6); go up mould (2) and arrange lower mould (1) directly over, guide bar (14) are installed to lower mould (1) top surface both ends symmetry, go up mould (2) slip cover and establish on guide bar (14), go up mould (2) bottom surface and be provided with adaptation embedding shaping die cavity (4) and with terrace die (15) of shaping die cavity (4) opening face shutoff, terrace die (15) bottom surface is reserved has and supplies each trompil to dodge pole (9) male constant head tank (16).

2. The single-layer casting mold for the brake drum of the trailer according to claim 1, wherein the single-layer casting mold comprises: the guide channels (6) are arranged in a plurality and distributed in an annular array, and the positions of the guide channels (6) correspond to the positions of the holes on the brake drum to be formed one by one.

3. The single-layer casting mold for the brake drum of the trailer according to claim 1, wherein the single-layer casting mold comprises: and the middle part of each opening avoiding rod (9) is fixedly provided with a sealing block (10) which is embedded in the guide channel (6) in a sliding manner, and each opening avoiding rod (9) penetrates through the jacking plate (5) to be inserted into the molding die cavity (4).

4. The single-layer casting mold for the brake drum of the trailer according to claim 1, wherein the single-layer casting mold comprises: and a through hole (11) for each open hole avoiding rod (9) to pass through is reserved on the jacking plate (5), and the inner diameter of the through hole (11) is smaller than the outer diameter of the sealing block (10).

5. The single-layer casting mold for the brake drum of the trailer according to claim 1, wherein the single-layer casting mold comprises: two linear guide rails (12) are respectively arranged in the opposite surfaces of the two brackets (7), and the two ends of the lifting seat (8) are fixedly connected with the sliding blocks of the two linear guide rails (12) through connecting rods (13).