Anti-deformation heat treatment device for metal casting

Abstract

The utility model discloses an anti-deformation heat treatment device for a metal casting, which is used for preventing a pump body casting from deforming during heat treatment and comprises a first fixing piece with a rigid structure, a first connecting part and a second connecting part are arranged on the first fixing piece, and the first connecting part is fixedly connected with a flow outlet of the pump body casting. And the second connecting part is fixedly connected with a shaft hole of the pump body casting. Due to the fact that the pipe wall of the flow outlet is thin, the flow outlet is prone to deformation, the connecting flange deviates, and the quality of a casting is affected, the flow outlet flange and the shaft hole flange are locked through the first fixing piece, and therefore deformation of the pump body casting can be avoided. The opening of the pump body casting is blocked through the first fixing piece and the second fixing piece, and the pump body casting is tightly filled with molding sand, so that deformation of the pump body casting in the heat treatment process can be avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of heat treatment, in particular to a metal casting anti-deformation heat treatment device. Background Art

[0002] Metal castings are objects with certain shapes, sizes and properties obtained by pouring, injecting, sucking or other casting methods into a pre-prepared mold after smelting liquid metal, cooling and subsequent processing such as grinding. In order to improve the mechanical, physical and chemical properties of casting materials, metal castings often need to be heat treated.

[0003] However, when the pump body casting is heat treated, the pump body casting will generate large internal stress, causing the casting to deform. Based on the above technical problems, the present application proposes a metal casting anti-deformation heat treatment device. Utility Model Content

[0004] The purpose of the utility model is to provide a metal casting anti-deformation heat treatment device to solve the technical problems mentioned in the background technology. The purpose of the utility model is achieved through the following technical solutions:

[0005] A metal casting anti-deformation heat treatment device is used to prevent deformation of a pump body casting during heat treatment, comprising a first fixing member of a rigid structure, on which a first connecting portion and a second connecting portion are provided, the first connecting portion is fixedly connected to an outlet of the pump body casting, and the second connecting portion is fixedly connected to an axial hole of the pump body casting.

[0006] Furthermore, a reinforcing plate is provided between the first connecting portion and the second connecting portion.

[0007] Furthermore, it also includes a second fixing part, which is connected to the inlet of the pump body casting; the first connecting part blocks the outlet, the second connecting part blocks the shaft hole, the second fixing part blocks the inlet, and the pump body casting is tightly filled with molding sand.

[0008] Furthermore, a filling port is provided on the second connecting portion, a filling cylinder is fixed at the filling port, and an end cap is fixed at one end of the filling cylinder away from the second connecting portion.

[0009] The technical solution provided in the embodiments of the present application has at least the following technical effects or advantages:

[0010] 1. Since the outlet pipe wall is relatively thin, the outlet is prone to deformation, causing the connecting flange to deviate, which affects the quality of the casting. The outlet flange and the inlet flange are locked by the first fixing member, thereby avoiding deformation of the pump body casting;

[0011] 2. The opening of the pump body casting is blocked by the first fixing member and the second fixing member, and the pump body casting is tightly filled with molding sand, thereby preventing the pump body casting from being deformed during the heat treatment process. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] The drawings in the specification, which constitute a part of the present application, are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention.

[0013] Figure 1 This is a schematic diagram of the installation state of the embodiment of the present application;

[0014] Figure 2 This is an explosion diagram of an embodiment of the present application.

[0015] Markings in the attached drawing: 1. pump body casting; 11. outlet flange; 12. shaft hole flange; 13. inlet flange; 2. first fixing piece; 21. first connecting part; 22. second connecting part; 23. reinforcing plate; 3. second fixing piece; 31. filling cylinder; 32. end cover. DETAILED DESCRIPTION

[0016] In order to better understand the above technical solution, the above technical solution will be described in detail below in conjunction with the drawings and specific implementation methods of the specification. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. The following description of at least one exemplary embodiment is actually only illustrative and is by no means a limitation on the utility model and its application or use. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0017] Example 1

[0018] like Figure 1 , Figure 2 The metal casting anti-deformation heat treatment device shown is used to prevent the pump body casting 1 from deforming during heat treatment, and includes a first fixing member 2 of a rigid structure. The first fixing member 2 includes a first connecting portion 21, a second connecting portion 22 and a reinforcing plate 23. The first connecting portion 21 and the second connecting portion 22 are steel plates installed perpendicular to each other. Two triangular reinforcing plates 23 are respectively fixed on both sides of the connection between the first connecting portion 21 and the second connecting portion 22 to improve the structural strength of the first fixing member 2.

[0019] The first connection portion 21 is provided with a through hole matching the outlet flange 11 of the pump body casting 1 , and the first connection portion 21 is fixedly connected to the outlet flange 11 of the pump body casting 1 by bolts.

[0020] The second connecting portion 22 is provided with a through hole matching the shaft hole flange 12 of the pump body casting 1 , and the second connecting portion 22 is fixedly connected to the shaft hole flange 12 of the pump body casting 1 by bolts.

[0021] The outlet flange 11 with a thinner pipe wall is fixedly connected to the shaft hole flange 12 with a thicker inner wall through the rigid first fixing member 2, thereby reducing the deformation of the pump body casting 1 during the heat treatment process.

[0022] Example 2

[0023] like Figure 1 , Figure 2 The metal casting anti-deformation heat treatment device shown is used to prevent the pump body casting 1 from deforming during heat treatment, and includes a first fixing member 2 and a second fixing member 3 of a rigid structure. The first fixing member 2 includes a first connecting portion 21, a second connecting portion 22 and a reinforcing plate 23. The first connecting portion 21 and the second connecting portion 22 are steel plates installed perpendicular to each other. Two triangular reinforcing plates 23 are respectively fixed on both sides of the connection between the first connecting portion 21 and the second connecting portion 22 to improve the structural strength of the first fixing member 2.

[0024] The first connection portion 21 is provided with a through hole matching the outlet flange 11 of the pump body casting 1 . The first connection portion 21 is fixedly connected to the outlet flange 11 of the pump body casting 1 by bolts and blocks the outlet of the pump body casting 1 .

[0025] The second connecting portion 22 is provided with a through hole matching the shaft hole flange 12 of the pump body casting 1 . The second connecting portion 22 is fixedly connected to the shaft hole flange 12 of the pump body casting 1 by bolts and blocks the shaft hole of the pump body casting 1 .

[0026] The second fixing part 3 is a disc-shaped steel plate, and a through hole matching the inlet flange 13 of the pump body casting 1 is opened on the second fixing part 3. The second fixing part 3 is connected to the inlet flange 13 of the pump body casting 1 by bolts and blocks the inlet of the pump body casting 1. The pump body casting 1 is tightly filled with molding sand.

[0027] Preferably, a filling port is opened at the center of the second connecting portion 3 , a filling cylinder 31 is fixed to the outside of the filling port, and an end cap 32 is threadedly connected to the outer end of the filling cylinder 31 , so as to facilitate filling of molding sand into the pump body casting 1 .

[0028] The method of use of Example 2 is:

[0029] First, the first fixing member 2 is connected to the pump body casting 1 to seal the outlet of the pump body casting 1 and the shaft hole;

[0030] Then, fill the pump body casting 1 with molding sand and compact it until the molding sand is filled to the inlet;

[0031] Next, the second fixing member 3 is connected to the pump body casting 1, and the pump body casting 1 is continuously filled with molding sand through the filling tube 31, and the end cover 32 is covered after compaction.

[0032] Finally, the assembled pump body casting is sent to the heat treatment furnace for heat treatment.

[0033] The technical solution provided in the embodiments of the present application has at least the following technical effects or advantages:

[0034] 1. Since the outlet pipe wall is relatively thin, the outlet is prone to deformation, causing the connecting flange to deviate, which affects the quality of the casting. The outlet flange and the inlet flange are locked by the first fixing member, thereby avoiding deformation of the pump body casting;

[0035] 2. The opening of the pump body casting is blocked by the first fixing member and the second fixing member, and the pump body casting is tightly filled with molding sand, thereby preventing the pump body casting from being deformed during the heat treatment process.

[0036] In the description of the present utility model, it needs to be understood that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the drawings. They are only for the convenience of describing the present utility model and simplifying the description. Unless otherwise stated, these directional words do not indicate or imply that the device or element referred to must have a specific direction or be constructed and operated in a specific direction. Therefore, they cannot be understood as limiting the scope of protection of the present utility model: the directional words "inside and outside" refer to the inside and outside relative to the contours of each component itself.

[0037] In addition, it should be noted that the use of terms such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. If not otherwise stated, the above terms have no special meaning and therefore cannot be understood as limiting the scope of protection of the utility model.

[0038] The above description is only the preferred embodiment of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A metal casting anti-deformation heat treatment device, used to prevent the pump casting from deforming during heat treatment, characterized in that: It comprises a first fixing member with a rigid structure, wherein a first connecting portion and a second connecting portion are arranged on the first fixing member, wherein the first connecting portion is fixedly connected to the outlet of the pump body casting, and the second connecting portion is fixedly connected to the axial hole of the pump body casting.

2. The metal casting anti-deformation heat treatment device according to claim 1, characterized in that: A reinforcing plate is disposed between the first connecting portion and the second connecting portion.

3. The metal casting anti-deformation heat treatment device according to claim 1, characterized in that: It also includes a second fixing part, which is connected to the inlet of the pump body casting; the first connecting part blocks the outlet, the second connecting part blocks the axial hole, the second fixing part blocks the inlet, and the pump body casting is tightly filled with molding sand.

4. The metal casting anti-deformation heat treatment device according to claim 3, characterized in that: The second connecting portion is provided with a filling port, a filling tube is fixed at the filling port, and an end cap is fixed at one end of the filling tube away from the second connecting portion.

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