Anti-deformation tooling for heat treatment

Abstract

The utility model provides a kind of anti-deformation tool for heat treatment, including honeycomb's support plate, vertical support is provided on support plate, support is spline column, several interval plates are provided on support vertically, the spline column of each interval plate lower end is all sleeved with several hollow adjusting sleeves, interval plate is distributed with sawtooth hole and heat transfer hole.The utility model is convenient for heat to be quickly and evenly transmitted, improve the service life of tool, also ensure that workpiece is heated evenly, avoid deformation to appear by uneven heating, guarantee workpiece size precision.

Description

Technical Field

[0001] This utility model relates to the field of heat treatment tooling technology, and in particular to a heat treatment anti-deformation tooling. Background Technology

[0002] Currently, there are many limitations to the heat treatment fixtures used for ultra-thin-walled pipe fittings. Common fixtures use point contact or line contact positioning methods, which can lead to excessive local pressure at the contact points for ultra-thin-walled pipe fittings, easily leaving indentations on the pipe surface or even causing local deformation.

[0003] Furthermore, the support structure of the tooling has poor stability, making it prone to stress concentration and cracking in complex heat treatment environments, thus affecting its service life. It can also cause the pipe fittings to shift or deform during heat treatment, making it difficult to guarantee dimensional accuracy. In addition, the support structure suffers from uneven heat transfer, leading to uneven heating of the workpiece and defects. With the rapid development of high-end manufacturing, the aerospace field has increasingly higher requirements for the dimensional accuracy of ultra-thin-walled pipe fittings, and existing tooling structures cannot meet these requirements. Utility Model Content

[0004] This utility model proposes a deformation-resistant fixture for heat treatment, which facilitates rapid and uniform heat transfer, improves the service life of the fixture, and ensures uniform heating of the workpiece, avoids deformation caused by uneven heating, and guarantees the dimensional accuracy of the workpiece.

[0005] The technical solution of this utility model is implemented as follows: a heat treatment anti-deformation tooling includes a honeycomb-shaped support plate, a vertical support column is provided on the support plate, the support column is a spline column, a number of partition plates are provided on the vertical side of the support column, a number of hollow adjustment sleeves are fitted on the support column at the lower end of each partition plate, and serrated through holes and heat transfer through holes are distributed on the partition plate.

[0006] Furthermore, positioning holes are provided at both ends and in the middle of the support plate. Locking blocks are arranged at intervals along the circumference inside the positioning holes. The locking blocks are spirally downward. A locking block that cooperates with the locking block is provided at the bottom of the support column. The bottom of the support column is inserted into the positioning hole, and the locking block is locked on the lower side of the locking block.

[0007] Furthermore, a limit block is fixed on the support above the card block, and the outer diameter of the limit block is larger than the positioning hole.

[0008] Furthermore, the partition plate is provided with insertion holes that correspond one-to-one with the positioning holes, and the support column passes through the insertion holes.

[0009] Furthermore, the hollowed-out adjustment sleeve includes an adjustment sleeve body, on which holes are provided circumferentially.

[0010] The beneficial effects of this utility model are:

[0011] This invention uses serrated through holes to position ultra-thin-walled workpieces, reducing the contact area with the workpiece and preventing it from being pinched. At the same time, the honeycomb support plate, heat transfer through holes, spline columns and other features facilitate rapid and uniform heat transfer. This not only avoids the risk of cracking or damage due to excessive local temperature in the tooling, thus extending the tooling's service life, but also ensures that the workpiece is heated evenly, preventing deformation due to uneven heating and guaranteeing the workpiece's dimensional accuracy.

[0012] This utility model uses a honeycomb-shaped support plate and spline column, along with locking blocks and clamping blocks for screw-in and clamping, to ensure the stability of the entire structure, avoid stress concentration, prevent deformation and cracking when heated, improve the service life of the tooling, and facilitate disassembly and assembly. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0014] Figure 1 This is a schematic diagram of the structure of this utility model;

[0015] Figure 2 This is a schematic diagram of the support plate structure;

[0016] Figure 3 for Figure 2 Sectional view of AA;

[0017] Figure 4 for Figure 2 Sectional view of BB;

[0018] Figure 5 This is a structural diagram of the support column;

[0019] Figure 6 for Figure 5 The left view;

[0020] Figure 7 for Figure 6 The right view;

[0021] Figure 8 This is a sectional view of the hollowed-out adjusting sleeve;

[0022] Figure 9 for Figure 8 Sectional view of CC;

[0023] Figure 10 This is a schematic diagram of the partition plate structure.

[0024] Support plate 1, positioning hole 2, support column 3, locking block 4, locking block 5, limiting block 6, partition plate 7, insertion hole 8, hollow adjustment sleeve 9, adjustment sleeve body 10, hole 11, serrated through hole 12, heat transfer through hole 13. Detailed Implementation

[0025] 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.

[0026] like Figure 1 and 2 As shown, a heat treatment anti-deformation fixture includes a honeycomb-shaped support plate 1. The honeycomb structure of the support plate 1 satisfies load-bearing requirements while facilitating the uniform distribution of external forces. When the fixture is subjected to external forces during transport, stress can be effectively conducted and dispersed along the honeycomb walls, avoiding stress concentration. This reduces the risk of localized cracking or damage under complex heat treatment conditions, such as thermal expansion and contraction caused by temperature changes, extending the fixture's service life. Simultaneously, the honeycomb structure has a large specific surface area, which helps heat transfer quickly and uniformly within the fixture. During heat treatment, it allows for more uniform heating or cooling of the workpiece, improving heat treatment quality and reducing defects such as deformation and cracks caused by uneven temperature, ensuring consistent quenching results. Furthermore, the honeycomb structure achieves the required functions with less material, significantly reducing the fixture's weight. This not only saves material costs during manufacturing but also makes the lighter fixture easier to handle, install, and operate.

[0027] like Figure 1-7 As shown, the support plate 1 is placed horizontally. Positioning holes 2 are provided at both ends and in the middle of the support plate 1. Vertical support columns 3 are inserted into the positioning holes 2. The support columns 3 are cross-shaped spline columns. The multi-tooth structure of the spline columns helps to ensure the coaxiality and perpendicularity between the support columns 3 and the support plate 1, and reduces deformation or damage due to excessive stress caused by high temperature.

[0028] Two locking blocks 4 are fixed circumferentially at intervals inside the positioning hole 2. The two locking blocks 4 are spirally downward. At the bottom of the support column 3, locking blocks 5 that cooperate with the locking blocks 4 are fixed circumferentially at intervals. The locking blocks 5 and the support column 3 are an integral structure. The bottom of the support column 3 is inserted into the positioning hole 2, and then the support column 3 is rotated downwards, causing the locking blocks 5 to screw into the lower side of the locking blocks 4. A limiting block 6 is fixed on the support column 3 above the locking blocks 5. The limiting block 6 is an integral structure with the support column 3, and its outer diameter is larger than that of the positioning hole 2. After the locking blocks 5 are screwed into the lower side of the locking blocks 4, the limiting block 6 abuts against the upper side of the support plate 1. Through the cooperation of the above structures, the column and the support plate 1 can be quickly assembled and disassembled, facilitating the operator's assembly and disassembly work.

[0029] like Figure 1 and 10 As shown, several partition plates 7 are vertically arranged on the support column 3. Each partition plate 7 has a corresponding insertion hole 8 on it, through which the support column 3 passes. The number of partition plates 7 is adjusted according to the height of the workpiece. Several perforated adjustment sleeves 9 are fitted onto the support column 3 at the lower end of each partition plate 7. By adjusting the number of perforated adjustment sleeves 9, the height of the partition plate 7 is adjusted, suitable for products of different heights. Figure 8 and 9 As shown, the hollowed-out adjustment sleeve 9 includes an adjustment sleeve body 10, and the adjustment sleeve body 10 has holes 11 arranged circumferentially to facilitate heat dissipation.

[0030] like Figure 1 and 10 As shown, the partition plate 7 has serrated through holes 12 and heat transfer through holes 13. The inner wall of the serrated through holes 12 has serrations evenly distributed circumferentially. The workpiece is vertically inserted into the serrated through holes 12. The serrated structure design reduces the contact area with the workpiece and facilitates heat transfer, making the heat transfer on the plate smoother, ensuring uniform heating and cooling of the workpiece, and reducing the deformation of the workpiece. The heat transfer through holes 13 are distributed in the gaps between adjacent serrated through holes 12 to facilitate smooth heat transfer. The inner diameter of the heat transfer through holes 13 can be adjusted as needed, specifically determined according to the size of the gap space.

[0031] All components of the tooling are cast from Cr25Ni20, which has good strength and hardness in high-temperature environments, preventing the tooling from softening and deforming in high-temperature environments.

[0032] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A deformation-resistant fixture for heat treatment, characterized in that: It includes a honeycomb-shaped support plate with vertical pillars on the support plate. The pillars are splined pillars, and several partitions are set on the vertical sides of the pillars. Several hollow adjustment sleeves are fitted on the pillars at the lower end of each partition. The partitions are distributed with serrated through holes and heat transfer through holes.

2. The anti-deformation fixture for heat treatment according to claim 1, characterized in that: Positioning holes are provided at both ends and in the middle of the support plate. Locking blocks are arranged at intervals along the circumference inside the positioning holes. The locking blocks are spirally downward. A locking block that cooperates with the locking block is provided at the bottom of the support column. The bottom of the support column is inserted into the positioning hole, and the locking block is locked on the lower side of the locking block.

3. The anti-deformation fixture for heat treatment according to claim 2, characterized in that: A limit block is fixed on the support above the card block, and the outer diameter of the limit block is larger than the inner diameter of the positioning hole.

4. The anti-deformation fixture for heat treatment according to claim 2, characterized in that: The partition plate is provided with insertion holes that correspond one-to-one with the positioning holes, and the support column passes through the insertion holes.

5. The anti-deformation fixture for heat treatment according to claim 1, characterized in that: The hollowed-out adjustment sleeve includes an adjustment sleeve body, and holes are provided around the circumference of the adjustment sleeve body.

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