Heat treatment device for large annular sheet parts

Abstract

The utility model belongs to the technical field of heat treatment of large annular sheet parts, and relates to a heat treatment device for large annular sheet parts. Comprising a hanging mechanism and a clamping mechanism, the hanging mechanism is of an umbrella-shaped framework structure with a hook at the top, and part hooks and steel bars are arranged on the circumference of the bottom of the umbrella-shaped framework structure; the part hook is used for horizontally hanging a part through a process hole in the part, and the steel bar is horizontally arranged along the umbrella-shaped framework structure and is used for preventing the hanging mechanism and the part from deforming in the quenching heat treatment process; the clamping mechanism is a pressing block, the pressing block is of an annular structure, bolt inserting holes are formed in an outer ring and an inner ring of the annular structure, all parts are flatly laid on the annular structure and overlapped, the upper portion and the lower portion of each part are packaged through a pressing plate, bolts penetrate through the bolt inserting holes in the outer ring and the inner ring respectively, and clamping of the multiple layers of parts is achieved. And tempering treatment and shape correction of the part are achieved. The problem that the deformation of the part is too large after heat treatment is solved, and the heat treatment yield is increased.

Description

Technical Field

[0001] This utility model belongs to the field of heat treatment technology for large annular thin plate parts, and relates to a heat treatment device for large annular thin plate parts. Background Technology

[0002] Ring-shaped parts are common components in various mechanisms and are used in many fields of modern industry. For example, they are used in ring locks. During operation, the rotation of the entire ring, through holes in the ring, locks and opens. Therefore, strict requirements are placed on the ovality and flatness of these parts; after heat treatment, the ovality must not exceed 1.5mm and the flatness must not exceed 0.8mm. These parts have large diameters and thin thicknesses, making them prone to deformation during heat treatment, and difficult to correct afterward. Utility Model Content

[0003] Utility Model Purpose

[0004] This invention provides a method for reducing deformation by placing the part on a horizontal hanger during quenching and for tempering and correcting the part by placing it on a special clamping device during tempering, so as to ensure that the part meets the deformation requirements after heat treatment.

[0005] Technical solution

[0006] A heat treatment device for large annular thin plate parts includes a hanging mechanism and a clamping mechanism. The hanging mechanism is an umbrella-shaped frame structure with hooks at the top. The bottom circumference of the umbrella-shaped frame structure is provided with part hooks and steel bars. The part hooks are used to horizontally hang the parts through process holes on the parts. The steel bars are set horizontally along the umbrella-shaped frame structure to prevent deformation of the hanging mechanism and the parts during the quenching heat treatment. The clamping mechanism is a pressure block, which is an annular structure. The outer and inner rings of the annular structure are provided with bolt holes. Each part is laid flat on one of the annular structures and overlapped. The parts are sealed on top and bottom by pressure plates, and bolts are passed through the bolt holes on the outer and inner rings respectively to clamp the multi-layer parts, thereby achieving tempering and shaping of the parts.

[0007] Furthermore, the number of part hooks is consistent with the number of process holes.

[0008] Furthermore, the number of steel bars is two, arranged perpendicularly and intersectingly around the bottom circumference of the umbrella-shaped frame structure.

[0009] Furthermore, the suspension mechanism is made of metal.

[0010] Furthermore, the working surface of the clamping mechanism is consistent with the outer surface of the part.

[0011] Furthermore, the clamping mechanism is provided with a handle on its side.

[0012] Furthermore, the number of bolt holes on the outer ring is twice the number of bolt holes on the inner ring.

[0013] Furthermore, the bolt holes are evenly distributed along the circumference on the outer and inner rings.

[0014] The beneficial effects of this application are as follows:

[0015] This utility model provides a quenching and tempering clamping device for annular thin plate parts with an edge. The device is suitable for annular parts processed from various thin plates. During tempering, the part is in direct contact with the clamping block. Through the pressing of the clamping block and the fixing effect of the long rod fastener, the part is tempered and shaped, which solves the problem of excessive deformation of parts after heat treatment, greatly improves the yield of heat treatment and reduces resource waste. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the part;

[0017] Figure 2 This is a schematic diagram of a heat treatment hanging hook assembly;

[0018] Figure 3 Schematic diagram of the calibration fixture pressure block

[0019] Figure 4 Schematic diagram of the upper and lower panels of the calibration fixture;

[0020] Figure 5 Schematic diagram of tempering and straightening fixture clamping. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions in the embodiments of this utility model will be described in more detail below with reference to the embodiments of this utility model. In the examples, the same or similar reference numerals denote the same or similar components or elements having the same or similar functions throughout. The described embodiments are some, but not all, embodiments of this utility model. The embodiments described below with reference to the embodiments are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model. The embodiments of this utility model will be described in detail below with reference to their specific implementation.

[0022] A heat treatment device for large annular thin plate parts includes a hanging mechanism and a clamping mechanism. The hanging mechanism is an umbrella-shaped frame structure with hooks at the top. The bottom circumference of the umbrella-shaped frame structure is provided with part hooks and steel bars. The part hooks are used to horizontally hang the parts through process holes on the parts. The steel bars are set horizontally along the umbrella-shaped frame structure to prevent deformation of the hanging mechanism and parts during quenching heat treatment. The clamping mechanism is a pressure block, which is an annular structure. The outer and inner rings of the annular structure are provided with bolt holes. Each part is laid flat on one of the annular structures and overlapped. The upper and lower parts are sealed by pressure plates, and bolts are used to pass through the bolt holes on the outer and inner rings to clamp the multi-layer parts, thereby achieving tempering and shaping of the parts.

[0023] In one embodiment of this utility model, the number of part hooks is consistent with the number of process holes.

[0024] In one embodiment of this utility model, the number of steel bars is two, which are arranged vertically and crosswise on the bottom circumference of the umbrella-shaped frame structure to prevent the expansion and deformation of the parts and the hanging mechanism during the quenching process.

[0025] In one embodiment of this utility model, the hanging mechanism is made of metal. It meets certain strength requirements while exhibiting minimal structural changes during quenching.

[0026] In one embodiment of this utility model, the working surface of the clamping mechanism is consistent with the outer surface of the part. The multi-layered parts are horizontally constrained by internal and external bolts. Furthermore, the upper and lower cover plates press the parts vertically, thereby enabling the parts to be tempered and shaped during the annealing process.

[0027] In one embodiment of this utility model, the clamping mechanism is provided with a handle on its side. The handle is used to adjust the position of the clamping mechanism after the packaged parts are installed, as well as to install or transport the clamping mechanism.

[0028] In one embodiment of this utility model, the number of bolt holes on the outer ring is twice the number of bolt holes on the inner ring.

[0029] In one embodiment of this utility model, the bolt holes are evenly distributed along the circumference of the outer and inner rings. The evenly distributed bolts provide better force constraint on the part in all directions, thus ensuring that the part's outer surface is not easily deformed during the annealing process.

[0030] The working principle of this utility model device is as follows:

[0031] The present invention provides a detailed description of a heat treatment clamping device for annular thin plate parts, in conjunction with the accompanying drawings:

[0032] Step 1: First, stack the parts horizontally and hang them horizontally through the process holes on the parts. Figure 2 It is then hung on the hook and subjected to quenching heat treatment;

[0033] Step 2: After quenching, place the parts in... Figure 3 Between the pressure blocks of the tempering and straightening fixture, the bottom surface of the pressure block should be in close contact with the part;

[0034] Step 3: Put Figure 4 The two pressure plates of the tempering fixture press on the parts that are tightly attached to the bottom surface of the pressure block on both sides. Adjust the position of the pressure plates so that the upper and lower pressure plates are aligned.

[0035] Step 4: After the part position is adjusted, install and tighten the bolts along the openings on the inner and outer edges of the part. Adjust the clamps and bolts to ensure the part is evenly stressed. After clamping, as shown... Figure 5 As shown;

[0036] Step 5: Place the tempered parts and fixtures in the benchtop furnace using a bottom support, or use... Figure 2 The parts are suspended and adjusted to be level before being transferred into the pit furnace. The alignment is achieved through the expansion of the pads and the fixing of the bolts after heating.

[0037] Furthermore, unless otherwise defined, the technical or scientific terms used in this application description shall have the ordinary meaning understood by one of ordinary skill in the art to which this application pertains. The terms "upper," "lower," "left," "right," "center," "vertical," "horizontal," "inner," and "outer," etc., used in this application description to indicate relative direction or positional relationship are used only to indicate relative orientation or positional relationship, and do not imply that the device or component must have a specific orientation, or be constructed and operated in a specific orientation. When the absolute position of the described object changes, its relative positional relationship may also change accordingly, and therefore should not be construed as a limitation on this application. The terms "first," "second," "third," and similar terms used in this application description are used only for descriptive purposes to distinguish different components, and should not be construed as indicating or implying relative importance. The terms "a," "one," or "the," etc., used in this application description should not be construed as an absolute limitation on quantity, but should be construed as indicating the existence of at least one. The terms "including," "comprising," etc., used in this application description mean that the element or object preceding the word covers the element or object listed after the word and its equivalents, without excluding other elements or objects.

[0038] Furthermore, it should be noted that, unless otherwise explicitly specified and limited, terms such as “installation,” “connection,” and “linkage” used in the description of this application should be interpreted broadly. For example, a connection can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; or it can be a connection within two components. Those skilled in the art can understand its specific meaning in this application according to the specific circumstances.

[0039] The above description is merely a specific embodiment of this utility model and is not intended to limit this utility model. Within the spirit and principles of this utility model, any person skilled in the art may use the above-disclosed technical content to make changes or modifications to equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of this utility model without departing from the technical solution of this utility model, as well as any modifications, equivalent substitutions, improvements, etc., should be included within the protection scope of this utility model.

Claims

1. A heat treatment apparatus for large annular thin plate parts, characterized in that, The device comprises a hanging mechanism and a clamping mechanism, the hanging mechanism is a umbrella-shaped framework structure with hooks on the top, and part hooks and steel bars are arranged on the bottom circumference of the umbrella-shaped framework structure; the part hooks are used to horizontally hang the parts through the process holes on the parts, and the steel bars are horizontally arranged along the umbrella-shaped framework structure to prevent the deformation of the hanging mechanism and the parts in the quenching process; the clamping mechanism is a pressing block, the pressing block is a ring structure, bolt insertion holes are arranged on the outer ring and the inner ring of the ring structure, each part is laid on one ring structure and overlapped, and the parts are packaged by pressing plates from top to bottom, and the parts are clamped by bolts penetrating through the bolt insertion holes on the outer ring and the inner ring, so that the tempering and shaping of the parts are realized.

2. The apparatus of claim 1, wherein, The number of the part hooks is consistent with the number of the process holes.

3. The apparatus of claim 1, wherein, The number of the steel bars is two, and the two steel bars are arranged on the bottom circumference of the umbrella-shaped framework structure in a vertical and crossed manner.

4. The apparatus of claim 1, wherein, The hanging mechanism is made of metal material.

5. The apparatus of claim 1, wherein, The working profile of the clamping mechanism is consistent with the outer profile of the parts.

6. The apparatus of claim 1, wherein, A handle is arranged on the side of the clamping mechanism.

7. The apparatus of claim 1, wherein, The number of the bolt insertion holes on the outer ring is twice the number of the bolt insertion holes on the inner ring.

8. The apparatus of claim 1, wherein, The bolt insertion holes are uniformly distributed on the outer ring and the inner ring.

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