An external expansion setting mold for heat setting

Abstract

The utility model belongs to heat setting processing technical field, concretely relates to a kind of outer expansion setting mould for heat setting processing, including half moon assembly plate and half moon butt joint plate being installed in the butt joint face of half moon assembly plate, the surface of half moon assembly plate and half moon butt joint plate is all equipped with lifting ring, the both ends opening of half moon assembly plate is connected with assembly bolt, half moon butt joint plate is equipped with assembly nut near the opening of assembly bolt, the utility model is placed in heat treatment furnace by the setting ring part of hoisting ring inside outer expansion setting mould and is carried out heat setting treatment after half moon assembly plate and half moon butt joint plate are spliced on the surface of movable bar, when conical block moves downward inside movable bar, when four movable bars are driven towards setting ring and are limited clamped, when the boss of half moon assembly plate inner wall and the groove of movable bar side edge are compatible with the appearance of setting ring part, then the setting ring inside outer expansion setting mould is placed in heat treatment furnace by hoisting ring and is carried out heat setting treatment.

Description

Technical Field

[0001] This utility model belongs to the field of heat setting processing technology, specifically relating to an external expansion forming mold for heat setting processing. Background Technology

[0002] Ring-shaped parts are basic components widely used in the field of mechanical manufacturing. Their structure is ring-shaped, and hot working is the key link that determines their mechanical properties, dimensional accuracy and service life. Hot working of ring-shaped parts refers to a series of processes that process metal blanks into ring structures through heating, deformation, phase transformation and other thermal effects.

[0003] Specifically, during the heat setting process, ring-shaped parts need to be placed in a heat treatment furnace (typically at a temperature range of 800-1200℃) to undergo stages such as heat preservation, constant temperature, and cooling, in order to achieve microstructure stabilization through grain rearrangement and stress release. However, traditional assembly and clamping methods mostly use standardized rigid fixtures with a fixed-size symmetrical design, which is difficult to adapt to the irregular surface of ring-shaped parts. When forced clamping is attempted, quality problems will occur: the fixture and the irregular surface of the part cannot be completely fitted, resulting in clamping points concentrated on local protrusions. Under high temperatures, the part is prone to uneven stress and plastic deformation. In the non-fitted areas, local temperature differences are easily generated due to heat convection during heating, causing inconsistent microstructure transformation and affecting the uniformity of performance indicators such as hardness and wear resistance. Utility Model Content

[0004] The purpose of this utility model is to provide an external expansion forming mold for heat setting processing, which aims to solve the problem that traditional assembly and clamping methods mostly use standardized rigid clamps with a fixed-size symmetrical design, which is difficult to adapt to irregularly shaped ring parts. When forced clamping is performed, quality problems will occur: the clamp and the irregular surface of the part cannot be completely fitted, resulting in the clamping point being concentrated in local protrusions. Under high temperature, the part is easily subjected to uneven force and plastic deformation. In the unfitted area, local temperature difference is easily generated due to heat convection during heating, resulting in inconsistent microstructure transformation and affecting the uniformity of performance indicators such as hardness and wear resistance.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an external expansion forming mold for heat setting processing, comprising a crescent assembly plate and a crescent docking plate installed on the mating surface of the crescent assembly plate, wherein lifting rings are installed on the surfaces of both the crescent assembly plate and the crescent docking plate, assembly bolts are connected through the openings at both ends of the crescent assembly plate, and assembly nuts are installed on the crescent docking plate near the openings of the assembly bolts.

[0006] A positioning pin plate is installed at the opening of the mating surface of the semi-circular mating plate by means of a pin. A movable shank is connected to the inner wall of the semi-circular assembly plate and the semi-circular mating plate. A cone block is connected to the inner wall of the movable shank. A base plate is connected to the bottom surface of the cone block. A fixing bolt is connected through the surface of the base plate. A fixing nut is connected to the top of the fixing bolt.

[0007] To facilitate the clamping of the ring-shaped parts, as an external expansion forming mold for heat setting processing according to this utility model, preferably, a forming ring is installed in the gap between the crescent assembly plate and the crescent docking plate and the movable lever.

[0008] To facilitate the stable assembly of the crescent assembly plate and the crescent docking plate, as an external expansion forming mold for heat setting processing according to this utility model, preferably, the crescent assembly plate is connected to the crescent docking plate surface by assembly bolts and assembly nuts.

[0009] In order to facilitate the clamping of the shaping ring, as an external expansion shaping mold for heat shaping processing according to this utility model, preferably, four movable levers are provided, and the four movable levers are symmetrically arranged about the center of the cone block.

[0010] In order to facilitate the movement of the shaping ring, as an external expansion shaping mold for heat shaping processing according to this utility model, preferably, the slope of the inner wall of the movable break is adapted to the slope of the outer wall of the cone block.

[0011] In order to facilitate the movement of the movable lever, as an external expansion forming mold for heat setting processing according to this utility model, preferably, the surface dimension of the base plate is larger than the bottom end face dimension of the cone block.

[0012] To ensure the stability of the cone block installation, as an external expansion forming mold for heat setting processing according to this utility model, preferably, the fixing bolts pass through the base plate and the cone block respectively and are threadedly connected to the fixing nut.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] This invention involves attaching a shaping ring component to the sides of four movable bends, then splicing a crescent assembly plate and a crescent mating plate on the surface of the movable bends. Assembly bolts are then threaded through the crescent assembly plate and tightened onto the assembly nuts on the surface of the crescent mating plate. Simultaneously, fixing bolts are threaded through a cone block from the bottom of the base plate and connected to the fixing nuts. The cone block moves downwards inside the movable bends, causing the four movable bends to clamp and limit the shaping ring. The protrusions on the inner wall of the crescent assembly plate and the grooves on the sides of the movable bends are adapted to the shape of the shaping ring component. Finally, the shaping ring inside the external expansion shaping mold is placed in a heat treatment furnace for heat setting. Attached Figure Description

[0015] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0016] Figure 1 This is a schematic diagram of the overall assembly structure of the external expansion and shaping mold provided in the embodiments of this application.

[0017] Figure 2 This is an exploded structural diagram of the external expansion and shaping mold provided in the embodiments of this application.

[0018] Figure 3 This is a schematic cross-sectional view of the external expansion and shaping mold provided in an embodiment of this application.

[0019] Figure 4 This is a schematic diagram of the cone block cross-sectional installation structure provided in an embodiment of this application.

[0020] Figure 5 This is a schematic diagram of the shaping ring structure provided in an embodiment of this application.

[0021] In the diagram: 1. Half-moon assembly plate; 101. Shaping ring; 2. Half-moon mating plate; 3. Lifting ring; 4. Assembly bolt; 5. Assembly nut; 6. Positioning pin plate; 7. Movable bender; 8. Conical block; 9. Base plate; 10. Fixing bolt; 11. Fixing nut. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Please see Figure 1-5 The present invention provides the following technical solution: an external expansion forming mold for heat setting processing, including a half-moon assembly plate 1 and a half-moon docking plate 2 installed on the docking surface of the half-moon assembly plate 1. Lifting rings 3 are installed on the surfaces of both the half-moon assembly plate 1 and the half-moon docking plate 2. Assembly bolts 4 are connected through the openings at both ends of the half-moon assembly plate 1. Assembly nuts 5 are installed on the half-moon docking plate 2 near the opening of the assembly bolts 4.

[0024] A positioning pin plate 6 is installed at the opening of the mating surface of the semi-circular mating plate 2 by means of a pin. A movable bend 7 is connected to the inner wall of the semi-circular assembly plate 1 and the semi-circular mating plate 2. A cone block 8 is connected to the inner wall of the movable bend 7. A base plate 9 is connected to the bottom surface of the cone block 8. A fixing bolt 10 is connected through the surface of the base plate 9. A fixing nut 11 is connected to the top of the fixing bolt 10.

[0025] Preferably, a shaping ring 101 is installed in the gap between the crescent assembly plate 1 and the crescent docking plate 2 and the movable lever 7. In actual use, the gap between the crescent assembly plate 1 and the crescent docking plate 2 and the movable lever 7 facilitates the clamping of the shaping ring 101.

[0026] Preferably, the crescent assembly plate 1 is connected to the crescent docking plate 2 via assembly bolts 4 and assembly nuts 5 on the surface of the crescent docking plate 2. In actual use, the crescent assembly plate 1 and the crescent docking plate 2 are assembled, which facilitates the clamping and stabilization of the parts.

[0027] Preferably, four movable levers 7 are provided, and the four movable levers 7 are symmetrically arranged about the center of the cone block 8. In actual use, the stability of clamping the shaping ring 101 is ensured by squeezing the movable levers 7.

[0028] Preferably, the slope of the inner wall of the movable lever 7 is adapted to the slope of the outer wall of the cone block 8.

[0029] Preferably, the surface dimension of the base plate 9 is larger than the bottom end face dimension of the cone block 8. In actual use, as the cone block 8 moves downward inside the movable lever 7, it facilitates the outward expansion and shaping of the movable lever 7, which is convenient for subsequent heating.

[0030] Preferably, the fixing bolts 10 pass through the base plate 9 and the cone block 8 respectively and are threadedly connected to the fixing nuts 11. In actual use, by passing the fixing bolts 10 through the base plate 9 and the cone block 8 and threading them with the fixing nuts 11, the cone block 8 is easily driven to press against the four movable levers 7, thereby driving the movable levers 7 to clamp and stabilize the shaping ring 101.

[0031] The working principle of this utility model in specific use is as follows: First, the shaping ring 101 is sleeved on the sides of the four movable bends 7. Then, the crescent assembly plate 1 and the crescent docking plate 2 are spliced ​​on the surface of the movable bends 7. Then, the assembly bolt 4 is threaded through the assembly nut 5 on the surface of the crescent assembly plate 1 and the crescent docking plate 2 and tightened. At the same time, the fixing bolt 10 is threaded through the cone block 8 from the bottom surface of the base plate 9 and connected to the fixing nut 11. At this time, the cone block 8 moves downward inside the movable bends 7, which drives the four movable bends 7 to limit and clamp towards the shaping ring 101. At this time, the boss on the inner wall of the crescent assembly plate 1 and the groove on the side of the movable bends 7 are adapted to the shape of the shaping ring 101. Then, the shaping ring 101 inside the external expansion shaping mold is placed in a heat treatment furnace for heat shaping treatment by the lifting ring 3.

[0032] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A heat-setting external expansion mold, comprising a crescent assembly plate (1) and a crescent docking plate (2) mounted on the docking surface of the crescent assembly plate (1), characterized in that: Lifting rings (3) are installed on the surfaces of the crescent assembly plate (1) and the crescent docking plate (2). Assembly bolts (4) are connected through the openings at both ends of the crescent assembly plate (1). Assembly nuts (5) are installed on the crescent docking plate (2) near the opening of the assembly bolts (4). A positioning pin plate (6) is installed at the opening of the mating surface of the semi-circular mating plate (2) by means of a pin. A movable lever (7) is connected to the inner wall of the semi-circular assembly plate (1) and the semi-circular mating plate (2). A cone block (8) is connected to the inner wall of the movable lever (7). A base plate (9) is connected to the bottom surface of the cone block (8). A fixing bolt (10) is connected through the surface of the base plate (9). A fixing nut (11) is connected to the top of the fixing bolt (10).

2. The external expansion forming mold for heat setting processing according to claim 1, characterized in that: A shaping ring (101) is installed in the gap between the crescent assembly plate (1) and the crescent docking plate (2) and the movable lever (7).

3. The external expansion forming mold for heat setting processing according to claim 1, characterized in that: The crescent assembly plate (1) is connected to the assembly nut (5) on the surface of the crescent docking plate (2) by assembly bolts (4).

4. The external expansion forming mold for heat setting processing according to claim 1, characterized in that: There are four movable levers (7), and the four movable levers (7) are symmetrically arranged about the center of the cone block (8).

5. The external expansion forming mold for heat setting processing according to claim 1, characterized in that: The slope of the inner wall of the movable lever (7) is adapted to the slope of the outer wall of the cone (8).

6. The external expansion forming mold for heat setting processing according to claim 1, characterized in that: The surface dimension of the base plate (9) is larger than the bottom end face dimension of the cone block (8).

7. The external expansion forming mold for heat setting processing according to claim 1, characterized in that: The fixing bolt (10) passes through the base plate (9) and the cone block (8) respectively and is threadedly connected to the fixing nut (11).

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