External spline support column for metal heat treatment

Abstract

The utility model relates to the technical field of metal heat treatment, and discloses an external spline support column for metal heat treatment, which comprises a bottom plate, the outer wall of the bottom plate is provided with first heat conduction holes, the middle part of the bottom plate is fixedly connected with a fixed column, the outer wall of the fixed column is provided with sliding chutes, the inner wall of each sliding chute is slidably connected with a cross block, and the cross block is provided with a second heat conduction hole. A second threaded rod is in threaded connection with the inner wall of the cross-shaped block, a limiting ring is fixedly connected to the outward end of the cross-shaped block, a plurality of second heat conduction holes are formed in the outer wall of the limiting ring, and a bolt is in threaded connection with the inner wall of the limiting ring. According to the positioning mechanism, after the bolt is rotated to enable the clamping block to clamp an object on the inner side of the clamping block, the special-shaped block is pulled out of the second fixing block, and then the second threaded rod is rotated to adjust the position of the cross block on the fixing column, so that the purpose of adjusting the positioning mechanism is achieved, the yield and the product quality are improved, and the production loss and the economic loss are reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of metal heat treatment, in particular to an external spline support column for metal heat treatment. Background Art

[0002] Metal heat treatment is a process of changing the internal structure and properties of metals by heating and cooling them, including annealing, quenching, and tempering. Annealing means heating the metal to a certain temperature, holding it for a period of time, and then slowly cooling it to improve the machinability of the metal, reduce hardness, and eliminate internal stress. Quenching is heating the metal to a high temperature and then quickly immersing it in a cooling medium to increase the hardness and strength of the metal. External splines used in mechanical components that need to transmit torque also need to be heat-treated to enhance their hardness, wear resistance, and fatigue resistance.

[0003] External splines are components used in mechanical structures to support and connect different mechanical components and structures. The main function of such support columns is to provide connection and transmission of force, while also playing a role in support and stability. External spline support columns are widely used in fields such as mechanical equipment, engineering structures, and vehicles, and have important functional roles.

[0004] For existing external spline support columns for metal heat treatment, they can be limited during heat treatment through clamping blocks to reduce contamination caused by contact with other components. However, their positioning mechanisms are mostly fixedly installed and cannot be adjusted to position different locations to change and reduce the impact caused by the clamping blocks during heat treatment, resulting in a decrease in product quality and yield, an increase in production losses, and economic losses. Summary of the Utility Model

[0005] To make up for the above deficiencies, the utility model provides an external spline support column for metal heat treatment, aiming to improve the problem that the positioning mechanisms of existing external spline support columns for metal heat treatment are mostly fixedly installed and cannot be adjusted to position different locations to change and reduce the impact caused by the clamping blocks during heat treatment, resulting in a decrease in product quality and yield.

[0006] To achieve the above object, the utility model adopts the following technical solutions: An external spline support column for metal heat treatment, including a bottom plate, heat conduction holes I are opened on the outer walls of the bottom plate, a fixed column is fixedly connected to the middle of the bottom plate, sliding grooves are opened on the outer walls of the fixed column, a cross block is slidably connected to the inner walls of the sliding grooves, a second threaded rod is threadedly connected to the inner wall of the cross block, a limiting ring is fixedly connected to the outward end of the cross block, a plurality of heat conduction holes II are opened on the outer walls of the limiting ring, a bolt is threadedly connected to the inner wall of the limiting ring, a clamping block is fixedly connected to the inward side of the bolt, and a surplus limiting device is fixedly connected to the top of the bottom plate near the edge, and the surplus limiting device is used to prevent the object from being disengaged from the limit due to thermal expansion and contraction.

[0007] As a further description of the above technical solution:

[0008] The surplus limiting device includes a first fixed block, the bottom of the first fixed block is fixedly connected to the top of the bottom plate, a first threaded rod is threadedly connected to the inner wall of the first fixed block, a rotating shaft I is rotatably connected to the inward end of the first threaded rod, a connecting rod is rotatably connected to the outer wall of the rotating shaft I, a rotating shaft II is rotatably connected to the front end of the connecting rod, a fixed rod is rotatably connected to the inward side of the rotating shaft II, and a limiting block is fixedly connected to the outer wall of the fixed rod.

[0009] As a further description of the above technical solution:

[0010] The outer wall of the rotating shaft I is slidably connected to the inner wall of the first fixed block, and a plurality of the limiting blocks are fixedly connected at the same horizontal height.

[0011] As a further description of the above technical solution:

[0012] A second fixed block is fixedly connected to the outward end of the bolt, and a special-shaped groove is opened on the inner wall of the second fixed block.

[0013] As a further description of the above technical solution:

[0014] A special-shaped block is slidably connected to the inner wall of the special-shaped groove, a rotating handle is fixedly connected to the outward end of the special-shaped block, and an anti-slip pad is fixedly connected to the outer wall of the rotating handle.

[0015] As a further description of the above technical solution:

[0016] The bottom end of the bottom limiting ring is fixedly connected to the top of the bottom plate, and the limiting ring is made of a high-temperature resistant metal material.

[0017] As a further description of the above technical solution:

[0018] A groove handle is provided on the front side of the bottom plate, and multiple of the limiting rings are fixedly connected at the same horizontal height.

[0019] As a further description of the above technical solution:

[0020] Legs are fixedly connected to the four corners at the bottom of the bottom plate, and the inner wall of the fixed column is threadedly connected to the outer wall of the second threaded rod.

[0021] The present utility model has the following beneficial effects:

[0022] 1. In the present utility model, after clamping the object inside by turning the bolt so that the clamping block clamps it, the special-shaped block is pulled out from the second fixed block, then the second threaded rod is rotated to adjust the position of the cross block on the fixed column, and the heat is imported or exported through the second heat conduction hole and the first heat conduction hole, achieving the purpose of adjusting the positioning mechanism, improving the finished product rate and product quality, and reducing production losses and economic losses.

[0023] 2. In the present utility model, by rotating the first threaded rod, the first rotating shaft slides on the inner wall of the first fixed block, so that it pulls or pushes the connecting rod outward or inward, and makes it rotate along the second rotating shaft, so that the fixed rod moves the limiting block outward or inward, achieving the purpose of multi-limiting the material with a certain margin, avoiding the situation that the object breaks away from the limit due to thermal expansion and contraction during heat treatment, resulting in processing failure, and improving the finished product rate and production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 FIG. 21 is a front three-dimensional view of an external spline support column for metal heat treatment proposed by the present utility model;

[0025] Figure 2 is Figure 1 an enlarged view of part A of

[0026] Figure 3 FIG. 31 is a partial structural exploded view of an external spline support column for metal heat treatment proposed by the present utility model;

[0027] Figure 4 FIG. 35 is a top view of an external spline support column for metal heat treatment proposed by the present utility model;

[0028] Figure 5 FIG. 39 is a partial structural schematic diagram of an external spline support column for metal heat treatment proposed by the present utility model.

[0029] Legend Explanation:

[0030] 1. Base plate; 2. Allowance limiting device; 201. First fixing block; 202. First threaded rod; 203. Fixed rod; 204. First rotating shaft; 205. Second rotating shaft; 206. Limiting block; 207. Connecting rod; 3. First heat conduction hole; 4. Clamping block; 5. Bolt; 6. Special-shaped groove; 7. Rotating handle; 8. Second fixing block; 9. Second heat conduction hole; 10. Limiting ring; 11. Anti-slip pad; 12. Fixed column; 13. Cross block; 14. Second threaded rod; 15. Chute; 16. Groove handle; 17. Special-shaped block; 18. Leg. Detailed implementation manner

[0031] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0032] Please refer to the attached Figure 1 -attached Figure 3 As shown in the figure, an embodiment provided by the present invention: an external spline support column for metal heat treatment, including a base plate 1. Heat conduction holes 3 are provided on the outer walls of the base plate 1. A fixed column 12 is fixedly connected to the middle of the base plate 1. Chutes 15 are provided on the outer walls of the fixed column 12. A cross block 13 is slidably connected to the inner walls of the chutes 15. A second threaded rod 14 is threadedly connected to the inner wall of the cross block 13. An outward end of the cross block 13 is fixedly connected to a limiting ring 10. A plurality of heat conduction holes 9 are provided on the outer walls of the limiting ring 10. A bolt 5 is threadedly connected to the inner wall of the limiting ring 10. A clamping block 4 is fixedly connected to the inward side of the bolt 5. A margin limiting device 2 is fixedly connected to the top of the base plate 1 near the edge. The margin limiting device 2 is used to prevent the object from being disengaged due to thermal expansion and contraction. A groove handle 16 is provided on the front side of the base plate 1. A plurality of limiting rings 10 are fixedly connected at the same horizontal height;

[0033] Specifically, a groove handle 16 is provided on the front side of the base plate 1, so that it can still be used at high temperatures, which is convenient for operators to move and adjust it during the heat treatment process. The heat conduction holes 9 and the heat conduction holes 3 can help to heat up and dissipate heat during and after the heat treatment process respectively, and at the same time reduce the weight of the base plate 1 and the limiting ring 10. A plurality of chutes 15 are provided on the outer side wall surface of the fixed column 12, so that the cross block 13 can slide therein and adjust its position through the second threaded rod 14.

[0034] Please refer to the attached Figure 3 -attached Figure 5, the allowance limiting device 2 includes a first fixing block 201. The bottom of the first fixing block 201 is fixedly connected to the top of the bottom plate 1. A first threaded rod 202 is threadedly connected to the inner wall of the first fixing block 201. The inner end of the first threaded rod 202 is rotatably connected to a first rotating shaft 204. A connecting rod 207 is rotatably connected to the outer wall of the first rotating shaft 204. The front end of the connecting rod 207 is rotatably connected to a second rotating shaft 205. The inner side of the second rotating shaft 205 is rotatably connected to a fixing rod 203. A limiting block 206 is fixedly connected to the outer wall of the fixing rod 203. The outer wall of the first rotating shaft 204 is slidably connected to the inner wall of the first fixing block 201. Multiple limiting blocks 206 are all fixedly connected at the same horizontal height;

[0035] Specifically, a first threaded rod 202 is threadedly connected to the inner wall of the first fixing block 201. By rotating the first threaded rod 202, the first rotating shaft 204 can slide on the inner wall of the first fixing block 201, so that the connecting rod 207 drives the fixing rod 203 to move. The two side limiting blocks 206 cannot close together, so that a certain allowance can be maintained, so that it will not be squeezed and deformed during the process of thermal expansion and contraction. The function of the fixing rod 203 is to convert the rotational motion of the second rotating shaft 205 into the horizontal movement of the limiting block 206.

[0036] Please refer to the appendix Figure 2 - appendix Figure 4 , a special-shaped block 17 is slidably connected to the inner wall of the special-shaped groove 6. The outer end of the special-shaped block 17 is fixedly connected to a rotating handle 7. An anti-slip pad 11 is fixedly connected to the outer wall of the rotating handle 7. The outer end of the bolt 5 is fixedly connected to a second fixing block 8. A special-shaped groove 6 is opened in the inner wall of the second fixing block 8. The bottom end of the bottom limiting ring 10 is fixedly connected to the top of the bottom plate 1. The material of the limiting ring 10 is a high-temperature resistant metal material. Legs 18 are fixedly connected to the four corners of the bottom of the bottom plate 1. The inner wall of the fixing column 12 is threadedly connected to the outer wall of the second threaded rod 14;

[0037] Specifically, legs 18 are fixedly connected to the four corners of the bottom of the bottom plate 1, which increases the stability of the device and prevents the bottom plate 1 from sliding or tilting during use. The special-shaped block 17 is slidably connected to the inner wall of the special-shaped groove 6, so that the rotation of the special-shaped block 17 can drive the rotation of the special-shaped groove 6 when inserted, and when heat treatment is carried out, it is pulled out to prevent damage caused by high temperature. After the heat treatment is completed, it can be quickly inserted to release the limit on the object.

[0038] Working principle: When heat treatment is required for an object, first place it between the two clamping blocks 4 within the limit ring 10. Then, twist the rotating handle 7 to drive the special-shaped block 17 to rotate, causing the bolt 5 to rotate, and thus the second fixing block 8 to rotate together. After completing the positioning, pull it out. Then, rotate the second threaded rod 14 to make the cross block 13 slide within the chute 15, adjusting the position of the cross block 13 on the fixed column 12, so as to position different positions of the object. During and after heat treatment, the first heat conduction hole 3 and the second heat conduction hole 9 ensure the introduction and dissipation of heat while reducing...

[0039] When the thermal expansion and contraction effect of the object undergoing heat treatment is obvious, rotate the first threaded rod 202 to drive the first rotating shaft 204 to slide within the first fixing block 201, thereby pushing the two laterally connected second rotating shafts 205 to the two sides or pulling them towards the middle, causing the fixing rod 203 to drive the limiting block 206 to move closer to the middle to complete secondary positioning, and the limiting block 206 cannot be fully closed to leave a certain margin to prevent extrusion deformation.

[0040] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention 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 perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. An external spline bracket column for metal heat treatment, comprising a base plate (1), characterized in that: The outer wall of the base plate (1) is provided with a heat conduction hole (3), a fixing column (12) is fixedly connected to the middle of the base plate (1), the outer wall of the fixing column (12) is provided with a slide groove (15), the inner wall of the slide groove (15) is slidably connected with a cross block (13), the inner wall of the cross block (13) is threadedly connected with a second threaded rod (14), the outward end of the cross block (13) is fixedly connected to a limit ring (10), the outer wall of the limit ring (10) is provided with a plurality of heat conduction holes (9), the inner wall of the limit ring (10) is threadedly connected with a bolt (5), the inner side of the bolt (5) is fixedly connected with a clamping block (4), and the top of the base plate (1) is fixedly connected with a margin limit device (2) near the edge, and the margin limit device (2) is used to prevent objects from being disengaged from the limit due to thermal expansion and contraction.

2. The external spline bracket column for metal heat treatment according to claim 1, characterized in that: The residual limit device (2) comprises a first fixed block (201), the bottom of the first fixed block (201) is fixedly connected to the top of the bottom plate (1), the inner wall of the first fixed block (201) is threadedly connected to a first threaded rod (202), the inward end of the first threaded rod (202) is rotatably connected to a rotating shaft 1 (204), the outer wall of the rotating shaft 1 (204) is rotatably connected to a connecting rod (207), the front end of the connecting rod (207) is rotatably connected to a rotating shaft 2 (205), the inward side of the rotating shaft 2 (205) is rotatably connected to a fixed rod (203), and the outer wall of the fixed rod (203) is fixedly connected to a limit block (206).

3. The external spline bracket column for metal heat treatment according to claim 2, characterized in that: The outer wall of the first rotating shaft (204) is slidably connected to the inner wall of the first fixed block (201), and the plurality of limit blocks (206) are fixedly connected at the same horizontal height.

4. The external spline bracket column for metal heat treatment according to claim 1, characterized in that: The outward end of the bolt (5) is fixedly connected to a second fixing block (8), and the inner wall of the second fixing block (8) is provided with a special-shaped groove (6).

5. The external spline bracket column for metal heat treatment according to claim 4, characterized in that: The inner wall of the special-shaped groove (6) is slidably connected to a special-shaped block (17), an outward end of the special-shaped block (17) is fixedly connected to a rotating handle (7), and the outer wall of the rotating handle (7) is fixedly connected to an anti-slip pad (11).

6. The external spline bracket column for metal heat treatment according to claim 2, characterized in that: The bottom end of the limiting ring (10) is fixedly connected to the top of the bottom plate (1), and the limiting ring (10) is made of a high-temperature resistant metal material.

7. The external spline bracket column for metal heat treatment according to claim 1, characterized in that: A groove handle (16) is provided on the front side of the base plate (1), and the plurality of limit rings (10) are fixedly connected at the same horizontal height.

8. The external spline bracket column for metal heat treatment according to claim 1, characterized in that: The four corners at the bottom of the base plate (1) are all fixedly connected with supporting legs (18), and the inner wall of the fixing column (12) is threadedly connected to the outer wall of the second threaded rod (14).

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