Vacuum heat treatment tool for precision mold machining

Abstract

The utility model discloses a precision mold processing vacuum heat treatment tool which comprises a main body mechanism, the main body mechanism comprises a placing frame, a plurality of H-shaped partition plates embedded in the placing frame, transverse plates symmetrically fixed to the bottom ends of the H-shaped partition plates and sleeves symmetrically fixed to the two sides of the H-shaped partition plates, and the placing frame is used for placing a mold needing vacuum heat treatment; the placing frame comprises two opposite L-shaped side plates, a bottom plate connected with the opposite L-shaped side plates and a cross rod connected with the opposite L-shaped side plates, the two opposite L-shaped side plates, the bottom plate and the cross rod form a frame body, a mold needing to be subjected to heat treatment can be placed in the frame body, the multiple H-shaped partition plates are vertically placed in the placing frame, adjacent molds can be separated, collision between the adjacent molds is avoided, and the heat treatment efficiency is improved. The vacuum heat treatment tool for precision mold machining has the advantages that the mold heat treatment effect is improved, and the practicability is high.

Description

Technical Field

[0001] This utility model relates to the field of vacuum heat treatment technology for molds, specifically a vacuum heat treatment fixture for precision mold processing. Background Technology

[0002] Vacuum heat treatment is a new type of heat treatment technology that combines vacuum technology with heat treatment technology. The vacuum environment in which vacuum heat treatment takes place refers to an atmosphere environment with a pressure lower than one atmosphere, including low vacuum, medium vacuum, high vacuum and ultra-high vacuum. Vacuum heat treatment is actually a type of atmosphere-controlled heat treatment. Vacuum heat treatment means that all or part of the heat treatment process is carried out under vacuum conditions, which greatly improves the quality of heat treatment. Compared with conventional heat treatment, vacuum heat treatment can achieve oxidation-free, decarburization-free, and carburization-free processes. It can remove phosphorus scale from the surface of the workpiece and has degreasing and degassing effects, thereby achieving a bright and clean surface effect.

[0003] In existing precision mold vacuum heat treatment processes, multiple molds are typically placed directly on a tray before the tray is fed into the vacuum heat treatment apparatus. However, placing the molds on the tray has the following drawbacks: the large contact area between the mold and the bottom of the tray results in a slower cooling rate at the contact point during subsequent air cooling, affecting the heat treatment effect; furthermore, the gap between adjacent molds is prone to collisions, causing deformation during subsequent heat treatment and affecting the precision of the mold. Therefore, this application proposes a vacuum heat treatment fixture for precision molds. Utility Model Content

[0004] This utility model aims to solve one of the technical problems existing in the prior art or related technologies.

[0005] Therefore, the technical solution adopted by this utility model is as follows: a precision mold processing vacuum heat treatment tooling, comprising: a main body mechanism, the main body mechanism comprising a placement frame, a plurality of H-shaped partitions fitted in the placement frame, a transverse plate symmetrically fixed at the bottom end of the H-shaped partitions, and sleeves symmetrically fixed on both sides of the H-shaped partitions.

[0006] The placement frame includes two opposing L-shaped side plates, a base plate connecting the opposing L-shaped side plates, and a crossbar connecting the opposing L-shaped side plates. Multiple cylinders are fixed in an array at the top of the crossbar.

[0007] The H-shaped partition has multiple first protrusions symmetrically fixed on both sides, and the top of the transverse plate has multiple second protrusions fixed in an array.

[0008] In a preferred embodiment, the present invention can be further configured such that the cylinder is fitted inside the sleeve.

[0009] In a preferred embodiment, the present invention can be further configured such that: a first protrusion is symmetrically fixed on the side surface of the L-shaped side plate, and a second protrusion is fixed in an array on the bottom surface of the L-shaped side plate.

[0010] In a preferred embodiment, the present invention can be further configured such that the bottom end of the transverse plate is attached to the base plate.

[0011] In a preferred embodiment, the present invention can be further configured such that the material of the main body is heat-resistant steel.

[0012] By adopting the above technical solution, the beneficial effects achieved by this utility model are as follows:

[0013] 1. In this utility model, a placement frame is provided, which consists of two opposing L-shaped side plates, a bottom plate connecting the opposing L-shaped side plates, and a crossbar. Multiple H-shaped partitions are arranged in an array within the frame. A horizontal plate is fixed to both sides of the bottom end of each H-shaped partition. Simultaneously, a first protrusion and a second protrusion are arranged in an array on the outer surfaces of the H-shaped partitions and the horizontal plates. In use, the mold is placed between the opposing H-shaped side plates, with the two sides of the bottom end of the mold resting on the second protrusions on the horizontal plates. The sides of the mold are respectively in contact with the first protrusions on the two H-shaped partitions. This arrangement ensures the stability of the mold during heat treatment, prevents collisions between adjacent molds, and uses point support to reduce the supporting area acting on the mold, allowing for uniform cooling of the outer surface during subsequent cooling. Furthermore, it ensures stable gaps between mold parts, guaranteeing stable airflow during heat treatment and cooling, further improving the heat treatment effect of the mold.

[0014] 2. In this utility model, multiple cylinders are arranged in an array on the crossbar, and sleeves are fixed on both sides of the H-shaped partition. The sleeves are fitted onto the cylinders. Through the above arrangement, the H-shaped partition can be easily installed and removed from the placement frame, or the distance between adjacent H-shaped partitions can be adjusted, thus making it suitable for fixing molds of different sizes and further increasing its practicality. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model;

[0016] Figure 2 This is a front view schematic diagram of the present invention;

[0017] Figure 3 This is an exploded structural diagram of the present invention;

[0018] Figure 4 This is a partial structural schematic diagram of the present invention.

[0019] Figure label:

[0020] 100. Main structure; 110. Placement frame; 111. L-shaped side plate; 112. Base plate; 113. Crossbar; 1131. Cylinder; 120. H-shaped partition; 121. First protrusion; 130. Horizontal plate; 161. Second protrusion; 140. Sleeve. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings. It should be noted that, unless otherwise specified, the embodiments and features of the present utility model can be combined with each other.

[0022] Some embodiments of this utility model are described below with reference to the accompanying drawings.

[0023] Example 1:

[0024] Combination Figures 1-4 As shown, this embodiment provides a precision mold machining vacuum heat treatment fixture, including: a main body 100.

[0025] The main structure 100 includes a placement frame 110, multiple H-shaped partitions 120 fitted within the placement frame 110, horizontal plates 130 symmetrically fixed to the bottom of the H-shaped partitions 120, and sleeves 140 symmetrically fixed to both sides of the H-shaped partitions 120.

[0026] The placement frame 110 is used to place the mold that needs to be vacuum heat treated. The placement frame 110 includes two opposing L-shaped side plates 111, a base plate 112 connecting the opposing L-shaped side plates 111, and a crossbar 113 connecting the opposing L-shaped side plates 111. The three form a frame that can hold the mold that needs to be heat treated.

[0027] Multiple H-shaped partitions 120 are vertically placed within the placement frame 110 to separate adjacent molds and prevent them from colliding. Horizontal plates 130 are symmetrically fixed to the bottom of the H-shaped partitions 120, with the bottom end contacting the base plate 112. Multiple first protrusions 121 are symmetrically fixed to both sides of the H-shaped partitions 120, creating a gap between the mold surface and the H-shaped plate. This gap allows airflow during heat treatment and cooling, ensuring uniform heat treatment and cooling. Multiple second protrusions 161 are arrayed at the top of the horizontal plates 130 to support the mold. The point support method reduces the support area acting on the mold, preventing excessively large support areas from causing slow cooling efficiency.

[0028] In addition, first protrusions 121 are symmetrically fixed on the side of the L-shaped side plate 111, and second protrusions 161 are also fixed in an array on the bottom surface of the L-shaped side plate 111, to facilitate the mating of the H-shaped partition 120 near the L-shaped side plate 111.

[0029] Multiple cylinders 1131 are fixed in an array at the top of the crossbar 113. The cylinders 1131 are fitted into the sleeves 140 on both sides of the H-shaped partition 120. When the sleeves 140 are fitted onto the outside of the cylinders 1131, they can limit the position of the H-shaped partition 120, ensuring the stability of the H-shaped partition 120. At the same time, it is convenient to install and disassemble the H-shaped partition 120, that is, to easily adjust the distance between the relative H-shaped partitions 120, thus making it suitable for molds of different sizes.

[0030] In addition, the entire tooling is supported by heat-resistant steel to ensure that the overall structure will not deform during long-term use and affect its use.

[0031] The working principle and usage process of this utility model are as follows: During use, the position of the H-shaped partition 120 is adjusted according to the size of the mold. The H-shaped partition 120 is lifted upwards, causing the sleeve 140 to move out of the cylinder 1131. At this time, the H-shaped partition 120 loses its limiting position. The H-shaped partition 120 is then moved so that the distance between the first protrusions 121 on adjacent H-shaped partitions 120 is equal to the thickness of the mold. The H-shaped partition 120 is then lowered, and the sleeve 140 is fitted onto the corresponding cylinder 1131, thus limiting the position of the H-shaped partition 120 and ensuring its stability. The mold is then placed on the adjacent... The mold is placed between the H-shaped partitions 120, and the two sides of the bottom of the mold are placed on the second protrusion 161 on the horizontal plate 130. The sides of the mold are respectively attached to the first protrusion 121 on the two H-shaped partitions 120. This completes the placement of the mold and ensures the stability of the mold during the heat treatment process. After completion, the entire placement frame 110 is pushed into the vacuum heat treatment equipment for heat treatment of the mold. Since the first protrusion 121 and the second protrusion 161 provide point support for the mold, the airflow during the heat treatment and cooling process can flow stably through all surfaces of the mold, ensuring the uniformity of the mold during the heat treatment and cooling process.

[0032] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A precision mold machining vacuum heat treatment fixture, comprising: The main body (100) is characterized in that the main body (100) includes a placement frame (110), a plurality of H-shaped partitions (120) fitted in the placement frame (110), a transverse plate (130) symmetrically fixed at the bottom of the H-shaped partition (120), and sleeves (140) symmetrically fixed on both sides of the H-shaped partition (120). The placement frame (110) includes two opposing L-shaped side plates (111), a base plate (112) connecting the opposing L-shaped side plates (111), and a crossbar (113) connecting the opposing L-shaped side plates (111). The top of the crossbar (113) is fixed with a plurality of cylinders (1131) in an array. The H-shaped partition (120) has multiple first protrusions (121) symmetrically fixed on both sides, and the top of the transverse plate (130) has multiple second protrusions (161) fixed in an array.

2. The precision mold machining vacuum heat treatment fixture according to claim 1, characterized in that, The cylinder (1131) is fitted inside the sleeve (140).

3. The vacuum heat treatment fixture for precision mold processing according to claim 1, characterized in that, The L-shaped side plate (111) has a first protrusion (121) symmetrically fixed on its side surface, and a second protrusion (161) is fixed in an array on the bottom surface of the L-shaped side plate (111).

4. The vacuum heat treatment fixture for precision mold processing according to claim 1, characterized in that, The bottom end of the horizontal plate (130) is attached to the bottom plate (112).

5. The vacuum heat treatment fixture for precision mold processing according to claim 1, characterized in that, The main body (100) is made of heat-resistant steel.

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