A casting mold for ductile iron and gray iron composite disc

Abstract

The utility model provides a casting mold for a composite ductile iron and gray iron disc, comprising a pedestal, and also comprising a disc core processing mold and a disc surface casting mold respectively arranged on the pedestal, the disc core processing mold comprising an upper mold and a lower mold respectively arranged on the upper and lower sides of the disc core of the brake disc, the upper mold and the upper side of the disc core form an upper cavity, the lower mold and the lower side of the disc core form a lower cavity, the upper cavity is connected to the lower cavity, the upper mold is provided with a core shooting hole connected to the upper cavity, a core shooting machine is provided above the upper mold, a plurality of protrusions are provided in an edge array of the disc core, and the upper mold and the lower mold are respectively provided with accommodating grooves for accommodating the protrusions. The casting mold for a composite ductile iron and gray iron disc provided by the utility model is provided with a disc core processing mold to wrap the disc core with molding sand, thereby isolating the disc core from the disc surface, avoiding the formation of iron sheet flying thorns by the molten iron through the gap between the mold and the disc core when the disc surface is cast, the production effect of the composite brake disc is better, there is no need to clean the iron sheet flying thorns, and the production efficiency of the composite brake disc is higher.

Description

Technical Field

[0001] The utility model relates to the technical field of brake disc processing, in particular to a casting mould for a ductile iron and gray iron composite disc. Background Art

[0002] Composite brake discs are made of two materials, generally bimetallic brake discs, which refer to brake disc structures composed of two different metal materials. The usual design is that the disc core uses one metal, such as ductile iron, and the disc surface uses another metal, such as gray cast iron. The disc core and the disc surface are connected through an integrated casting process to achieve an integrated forming of the brake disc. In order to achieve the casting combination of the two metals, before pouring, the heated ductile iron disc core and the gray iron part mold need to be assembled, and then cast and formed.

[0003] However, before the existing composite brake disc is cast, there is a gap between the ductile iron disc core and the gray iron mold. During casting, molten iron can easily penetrate into the gap, which causes iron burrs to appear on the blank after the brake disc is formed. Workers are required to clean the iron burrs, resulting in poor production effect and low production efficiency of the composite brake disc. This solution solves this technical problem. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model provides a casting mold for a ductile iron and gray iron composite disk.

[0005] To achieve the above-mentioned purpose, the technical solution adopted by the utility model is: a ductile iron gray iron composite disc casting mold, including a pedestal, and also including a disc core processing mold and a disc surface casting mold respectively arranged on the pedestal, the disc core processing mold including an upper mold and a lower mold respectively arranged on the upper and lower sides of the disc core of the brake disc, the upper mold and the upper side of the disc core form an upper cavity, the lower mold and the lower side of the disc core form a lower cavity, the upper cavity is connected with the lower cavity, the upper mold is provided with a core shooting hole connected with the upper cavity, a core shooting machine is provided above the upper mold, a plurality of protrusions are provided in an edge array of the disc core, the upper mold and the lower mold are respectively provided with accommodating grooves for accommodating the protrusions, and the disc surface of the brake disc is connected with the protrusions.

[0006] The lower mold is provided with a lifting mechanism for demoulding the core, and the lifting mechanism is detachably abutted against the bottom side of the protrusion;

[0007] A support frame is arranged on the pedestal, the lower mold is arranged on the support frame, the lifting mechanism includes an electric cylinder connected to the support frame at a fixed end, a carrying plate connected to the telescopic end of the electric cylinder, and a plurality of connecting rods arranged in a ring array on the carrying plate, the connecting rods slide through the lower mold and are arranged corresponding to the protrusions, and a lifting block is arranged at the end of the connecting rod that is detachably abutted against the protrusion, and the lifting block is arranged in the accommodating groove.

[0008] The support frame includes a bearing plate connected to the pedestal, a plurality of support rods arranged in a vertical array on the bearing plate at one end, and bearing rings respectively connected to the other ends of the support rods, the lower mold is connected to the bearing ring, and the electric cylinder is arranged on the bearing plate and passes through the bearing ring.

[0009] Compared with the prior art, the beneficial effects of the utility model are:

[0010] (1) A core processing mold is provided to wrap the core of the disc with molding sand, thereby isolating the core from the disc surface, thereby preventing the molten iron from passing through the gap between the mold and the core of the disc when the disc surface is cast, thereby preventing iron spurs from flying through the gap between the mold and the core of the disc, and achieving a better production effect of the composite brake disc. There is no need to clean the iron spurs, and the production efficiency of the composite brake disc is higher;

[0011] (2) The core is demoulded from the lower mold through the lifting mechanism. The demoulding efficiency is higher after the core is processed. The core is lifted up by several lifting blocks at the same time, and the demoulding effect of the core is better. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0013] Figure 2 It is a schematic diagram of the internal structure of the core processing mold of the utility model.

[0014] Figure 3 This utility model Figure 2 Schematic diagram of the local enlarged structure of part A.

[0015] Figure 4 It is a cross-sectional structural schematic diagram of the core processing mold of the utility model.

[0016] Figure 5 It is a schematic diagram of the internal structure of the disk core of the utility model.

[0017] Figure 6 It is a structural schematic diagram of the composite brake disc of the utility model.

[0018] Among them, in the figure: 1. pedestal; 2. disc core processing mold; 21. upper mold; 211. upper cavity; 212. core shooting hole; 22. lower mold; 221. lower cavity; 23. accommodating groove; 3. disc surface casting mold; 4. brake disc; 41. disc core; 411. bump; 42. disc surface; 5. support frame; 51. bearing plate; 52. support rod; 53. bearing ring; 6. lifting mechanism; 61. electric cylinder; 62. bearing disc; 63. connecting rod; 64. lifting block; 7. core shooting machine. DETAILED DESCRIPTION

[0019] In order to more clearly illustrate the technical features of this solution, this solution is described below through specific implementation methods.

[0020] See also Figure 1-Figure 6 A casting mold for a ductile iron and gray iron composite disk comprises a pedestal 1, and also comprises a disk core processing mold 2 and a disk surface casting mold 3 respectively arranged on the pedestal 1, the disk core processing mold 2 comprises an upper mold 21 and a lower mold 22 respectively arranged on the upper and lower sides of a disk core 41 of a brake disk 4, the upper mold 21 and the upper side of the disk core 41 form an upper cavity 211, the lower mold 22 and the lower side of the disk core 41 form a lower cavity 221, the upper cavity 211 is communicated with the lower cavity 221, the upper mold 21 is provided with a core shooting hole 212 communicated with the upper cavity 211, a core shooting machine 7 is arranged above the upper mold 21, a plurality of protrusions 411 are arranged in an edge array of the disk core 41, the upper mold 21 and the lower mold 22 are respectively provided with accommodating grooves 23 for accommodating the protrusions 411, and the disk surface 42 of the brake disk 4 is connected with the protrusions 411.

[0021] The lower mold 22 is provided with a lifting mechanism 6 for demoulding the disk core 41, and the lifting mechanism 6 is detachably abutted against the bottom side of the protrusion 411;

[0022] A support frame 5 is arranged on the pedestal 1, and the lower mold 22 is arranged on the support frame 5. The lifting mechanism 6 includes an electric cylinder 61 connected to the support frame 5 at a fixed end, a carrying plate 62 connected to the telescopic end of the electric cylinder 61, and a plurality of connecting rods 63 arranged in a ring array on the carrying plate 62. The connecting rods 63 slide through the lower mold 22 and are arranged corresponding to the protrusions 411. The end of the connecting rod 63 is provided with a lifting block 64 that can be detachably abutted against the protrusion 411, and the lifting block 64 is arranged in the accommodating groove 23.

[0023] The support frame 5 includes a supporting plate 51 connected to the pedestal 1, a plurality of supporting rods 52 arranged in a vertical array at one end on the supporting plate 51, and supporting rings 53 respectively connected to the other ends of the supporting rods 52, the lower mold 22 is connected to the supporting ring 53, and the electric cylinder 61 is arranged on the supporting plate 51 and passes through the supporting ring 53.

[0024] The specific working process of this utility model:

[0025] When in use, the disc core 41 is placed in the receiving groove 23 of the lower mold 22, and the upper mold 21 is closed. The core shooter 7 is used to shoot sand into the upper cavity 211 and the lower cavity 221. The molding sand wraps the disc core 41, and the convex block 411 of the disc core 41 is in an exposed state. After the core shooting is completed, the upper mold 21 is removed, and the electric cylinder 61 is started. The electric cylinder 61 drives the carrier plate 62 to rise. The carrier plate 62 drives the lifting block 64 to rise through the connecting rod 63, and the lifting block 64 supports the convex block 411, so that the disc core 41 is separated from the lower mold 22. Finally, the disc core 41 is removed. The structure of the disc core 41 is as shown in FIG. Figure 5 As shown;

[0026] The disc core 41 processed by the core shooting machine 7 is placed in the disc surface casting mold 3 to cast the disc surface 42. At this time, the disc surface 42 is fused with the protrusion 411, and the disc surface 42 and the disc core 41 are blocked by the sand core, which avoids the generation of burrs and avoids the protrusion 411 being wrapped in the disc surface 42, thereby forming a composite brake disc structure. After the brake disc 4 is demoulded, the molding sand on the disc core 41 is cleaned to complete the processing of the entire composite brake disc.

[0027] The core 41 is wrapped with molding sand by the core processing mold 2, so as to isolate the core 41, and avoid the formation of iron spurs by the molten iron passing through the gap between the mold and the core 41 when the disk surface 42 is poured. The production effect of the composite brake disc is better, and there is no need to clean the iron spurs, and the production efficiency of the composite brake disc is higher;

[0028] The core 41 is demoulded from the lower mold 22 by the lifting mechanism 6. The demoulding efficiency of the core 41 is higher after being processed. The core 41 is lifted up by a plurality of lifting blocks 64 at the same time, so the demoulding effect of the core 41 is better.

[0029] Technical features not described in the present invention can be achieved through or by adopting existing technologies, and will not be elaborated here. Of course, the above description is not a limitation of the present invention, and the present invention is not limited to the above examples. Changes, modifications, additions or substitutions made by ordinary technicians in this technical field within the essential scope of the present invention should also fall within the scope of protection of the present invention.

Claims

1. A casting mold for a composite plate of ductile iron and gray iron, comprising a base (1), characterized in that: The brake disc (4) further comprises a disc core processing mold (2) and a disc surface casting mold (3) respectively arranged on the pedestal (1); the disc core processing mold (2) comprises an upper mold (21) and a lower mold (22) respectively arranged on the upper and lower sides of the disc core (41) of the brake disc (4); the upper mold (21) and the upper side of the disc core (41) form an upper cavity (211); the lower mold (22) and the lower side of the disc core (41) form a lower cavity (221); the upper cavity (211) and the lower cavity (221) are connected to each other. The upper mold (21) is connected to the cavity (221), the upper mold (21) is provided with a core shooting hole (212) connected to the upper cavity (211), a core shooting machine (7) is provided above the upper mold (21), a plurality of protrusions (411) are arranged in an edge array on the core (41), the upper mold (21) and the lower mold (22) are respectively provided with accommodating grooves (23) for accommodating the protrusions (411), and the disk surface (42) of the brake disk (4) is connected to the protrusions (411).

2. The casting mold for ductile iron and gray iron composite disk according to claim 1, characterized in that: The lower mold (22) is provided with a lifting mechanism (6) for demoulding the disk core (41), the lifting mechanism (6) being detachably abutted against the bottom side of the protrusion (411); A support frame (5) is arranged on the pedestal (1), the lower mold (22) is arranged on the support frame (5), the lifting mechanism (6) comprises an electric cylinder (61) having a fixed end connected to the support frame (5), a carrier plate (62) connected to a telescopic end of the electric cylinder (61), and a plurality of connecting rods (63) arranged in a ring array on the carrier plate (62), the connecting rods (63) slidingly passing through the lower mold (22) and being arranged corresponding to the protrusion (411), and a lifting block (64) detachably abutting against the protrusion (411) is arranged at the end of the connecting rod (63), and the lifting block (64) is arranged in the accommodating groove (23).

3. The casting mold for the ductile iron and gray iron composite disk according to claim 2 is characterized in that: The support frame (5) comprises a bearing plate (51) connected to the pedestal (1), a plurality of supporting rods (52) arranged in a vertical array at one end on the bearing plate (51), and bearing rings (53) respectively connected to the other ends of the supporting rods (52); the lower mold (22) is connected to the bearing ring (53); and the electric cylinder (61) is arranged on the bearing plate (51) and passes through the bearing ring (53).

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