Shaft part heat treatment tool

Abstract

The utility model relates to the technical field of manufacturing of shaft parts, in particular to a heat treatment tool for shaft parts, and solves the problems that in the prior art, an existing heat treatment tool assistive device for long shaft parts only suspends and lifts one end of a long shaft part, and when the lifting mode is used for treating longer or heavier shaft parts, the shaft parts cannot be damaged. And due to the dead weight of the part, the end part of the part is deformed, so that the overall precision and the performance of the part are influenced. A shaft part heat treatment tool comprises a bottom ring and a top ring, and a plurality of vertical lifting assemblies annularly arrayed in the circumferential direction of the bottom ring are arranged between the bottom ring and the top ring and used for clamping and supporting long shaft parts. According to the utility model, through the design of the vertical lifting assemblies in the annular array, the long-axis parts can be uniformly stressed in the heat treatment process, the deformation problem caused by local suspension is avoided, and the overall precision and performance of the parts are improved.

Description

Technical Field

[0001] This utility model relates to the field of shaft parts manufacturing technology, and in particular to a heat treatment fixture for shaft parts. Background Technology

[0002] Shafts, as fundamental components in the machinery manufacturing industry, are widely used in various mechanical equipment, bearing important functions such as transmitting torque and supporting rotating parts. Because they are frequently subjected to alternating stress and frictional wear during use, their performance requirements are high. Heat treatment, as a key process for improving the performance of shafts, can significantly improve their microstructure, increase hardness, strength, and wear resistance, thereby meeting diverse application needs.

[0003] In the heat treatment of shaft parts, the selection and use of tooling and auxiliary fixtures are crucial, directly affecting the heat treatment effect and the quality of the parts. This is especially true for the heat treatment of long shaft parts, where the requirements for tooling and auxiliary fixtures are more stringent due to their length and unique shape. Utility model patent CN 212983016 U discloses a tooling and auxiliary fixture for heat treatment of long shaft parts, which relates to the field of heat treatment auxiliary fixture design and manufacturing technology. This tooling and auxiliary fixture includes a support plate and a base plate. The bottom of the support plate is vertically connected to the middle of the upper surface of the base plate. The upper end of the support plate has a support circular hole, and the base plate has several through holes for suspending long shaft parts. Although this tooling and auxiliary fixture can effectively control the deformation of long shaft parts during heat treatment, is easy to operate, can heat treat multiple long shaft parts, and is convenient to load and unload, has a simple structure, is easy to manufacture, has low cost, and is highly practical, allowing for heat treatment of long shaft parts through hoisting, its limitations have gradually become apparent in practical applications.

[0004] Specifically, existing heat treatment fixtures for long shaft parts only suspend and lift one end of the long shaft part. When handling long or heavy shaft parts, this lifting method will cause deformation at the end of the part due to the part's own weight, which will affect the overall accuracy and performance of the part.

[0005] Therefore, to address the shortcomings of existing technologies, we urgently need a heat treatment fixture for shaft parts to solve these problems. This fixture should fully consider the characteristics of shaft parts and the requirements of heat treatment, adopting a more scientific and reasonable suspension and support method to ensure the parts remain stable and uniform during heat treatment, effectively improving the efficiency and quality of heat treatment, while better meeting the needs of modern production and providing strong support for the sustainable development of the shaft parts processing industry. Utility Model Content

[0006] The purpose of this utility model is to provide a heat treatment fixture for shaft parts, which solves the problem that existing heat treatment fixtures for long shaft parts only suspend and lift one end of the long shaft parts. When handling long or heavy shaft parts, this lifting method will cause deformation at the end of the part due to the weight of the part, thus affecting the overall accuracy and performance of the part.

[0007] To achieve the above objectives, this utility model provides a heat treatment fixture for shaft parts, comprising a bottom ring and a top ring;

[0008] A plurality of vertical lifting components are arranged in a ring array along the circumference of the bottom ring between the bottom ring and the top ring.

[0009] The vertical lifting assembly includes two round rods and two positioning rings. The top end of the round rod is connected to the top ring, and the bottom end is connected to the bottom ring.

[0010] The two positioning rings are symmetrically arranged between the two round rods, and both sides of the positioning rings are connected to an adjustment positioning structure that is movably connected to the round rods;

[0011] The positioning ring has several clamping blocks inside, and one side of each clamping block is rotatably connected to an adjusting screw with one end threaded through the positioning ring.

[0012] One end of the adjusting screw is fixedly connected to a handle, and the outer ring of the handle has several anti-slip grooves.

[0013] The adjusting positioning structure includes a sliding ring that is slidably connected to the outer ring of the round rod and a positioning screw with one end threaded through the sliding ring. One end of the positioning screw is connected to the side wall of the round rod.

[0014] The clamping block has an arc-shaped surface at the end away from the adjusting screw, and a handle is connected to one side of the positioning ring.

[0015] The circular rod has several positioning holes on one side that are adapted to the positioning screw, and the positioning holes are arranged in a linear array along the vertical direction of the circular rod.

[0016] The top ring has a mounting plate at its top center, which is connected to the top of the top ring by several fixing rods. A hook hole is provided on one side of the mounting plate.

[0017] This utility model discloses a heat treatment fixture for shaft-type parts. Through the design of a vertical lifting assembly and a positioning ring, it achieves all-round support and clamping of long shaft-type parts. This support and clamping method is not only stable and reliable, but also ensures that the parts are heated evenly during the heat treatment process, effectively avoiding deformation problems caused by uneven local heating, and improving the overall accuracy and performance of the parts.

[0018] High adaptability: By adjusting the design of the positioning structure and clamping blocks, this invention can easily adapt to long shaft parts of different lengths. Regardless of the length of the part, a simple adjustment is all that is needed to achieve stable clamping and positioning, greatly improving the versatility and adaptability of the tooling.

[0019] To avoid end deformation: Compared with the existing technology that only suspends and hoists one end of long shaft-type parts, this utility model adopts an all-round support and clamping design, effectively avoiding end deformation caused by the weight of the parts. This improvement not only improves the heat treatment quality of the parts, but also extends their service life. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below.

[0021] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present utility model.

[0022] Figure 2 This is a schematic diagram of the bottom ring and top ring of an embodiment of the present invention.

[0023] Figure 3 This is a schematic diagram of the structure of the round rod and positioning hole in an embodiment of the present invention.

[0024] Figure 4 This is a schematic diagram of the sliding ring and positioning ring according to an embodiment of the present invention.

[0025] Figure 5 This is a schematic diagram of the clamping block and adjusting screw according to an embodiment of the present invention.

[0026] In the diagram: 1. Bottom ring; 2. Round rod; 3. Top ring; 4. Mounting plate; 5. Positioning ring; 6. Positioning hole; 7. Positioning screw; 8. Sliding ring; 9. Clamping block; 10. Adjusting screw. Detailed Implementation

[0027] The embodiments of the present invention are described in detail below. Examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, but should not be construed as limiting the present invention.

[0028] Example 1

[0029] Please see Figure 1-5 As shown, a heat treatment fixture for shaft parts in this embodiment includes a bottom ring 1 and a top ring 3;

[0030] Several vertical lifting components are arranged in a ring array along the circumference of the bottom ring 1 between the bottom ring 1 and the top ring 3.

[0031] The vertical lifting assembly includes two round rods 2 and two positioning rings 5. The top end of the round rod 2 is connected to the top ring 3, and the bottom end is connected to the bottom ring 1.

[0032] Two positioning rings 5 ​​are symmetrically arranged between two round rods 2, and both sides of the positioning rings 5 ​​are connected to an adjustment positioning structure that is movably connected to the round rods 2;

[0033] The positioning ring 5 has several clamping blocks 9 inside, and one side of the clamping block 9 is rotatably connected to an adjusting screw 10 with one end threaded through the positioning ring 5.

[0034] First, the tooling is adjusted to accommodate the actual length of the long shaft-type parts to be processed. Specifically, the distance between the two positioning rings 5 ​​is adjusted by adjusting the adjusting positioning structure in the vertical lifting assembly. This adjustment process is achieved through the adjusting positioning structure that is movably connected to the round rod 2 on both sides of the positioning ring 5, ensuring that the positioning ring 5 can slide up and down on the round rod 2 and be fixed in the required position, thereby accommodating long shaft-type parts of different lengths.

[0035] After adjusting the distance between the two positioning rings 5, the next step is to clamp and position the long shaft-type parts. Several clamping blocks 9 are installed inside the positioning rings 5, and these clamping blocks 9 are secured by an adjusting screw 10 connected to one side. The operator only needs to rotate the adjusting screw 10 to bring the clamping blocks 9 closer to the surface of the long shaft-type parts and firmly clamp them, achieving a stable fixing effect. This design ensures that the long shaft-type parts will not be affected by movement or shaking during heat treatment, thus maintaining the treatment effect.

[0036] Once all long shaft parts are clamped and positioned using their corresponding vertical lifting components, the entire fixture is ready. At this point, the top ring 3 can be connected to the gantry crane hook, and the gantry crane can be used to lift the entire fixture and the long shaft parts clamped within it. After lifting, the entire structure is sent into a heat treatment furnace for processing. During the heat treatment process, the fixture's ring-array vertical lifting component design ensures that the long shaft parts are heated evenly, avoiding deformation problems caused by uneven heating in certain areas.

[0037] Example 2

[0038] Please see Figure 1-5As shown in this embodiment, a heat treatment fixture for shaft parts includes an adjusting screw 10 with a handle fixedly connected to one end. The handle has several anti-slip grooves on its outer ring. Specifically, through the cooperation between the adjusting screw 10 and the handle, the operator can apply force by gripping the handle when rotating the adjusting screw 10 to tighten the clamping block 9. The anti-slip grooves on the outer ring of the handle increase the friction between the hand and the handle, allowing the operator to rotate the adjusting screw 10 more stably and effortlessly, thus quickly and accurately completing the tightening of the clamping block 9. This design improves operational convenience and work efficiency.

[0039] The clamping block 9 has an arc-shaped surface at the end furthest from the adjusting screw 10, and a handle is connected to one side of the positioning ring 5. Specifically, through the fit between the arc-shaped surface of the clamping block 9 and the surface of the long shaft-like part, and the handle on the side of the positioning ring 5, the operator can more easily press the clamping block 9 tightly against the surface of the long shaft-like part and achieve a secure fit by rotating the adjusting screw 10. At the same time, the handle design makes it easier for the operator to move or adjust the positioning ring 5. This design achieves the effect of improving clamping stability and ease of operation.

[0040] Example 3

[0041] Please see Figure 1-5 As shown in the figure, a heat treatment fixture for shaft parts in this embodiment includes an adjusting and positioning structure comprising a sliding ring 8 slidably connected to the outer ring of a round rod 2 and a positioning screw 7 with one end threaded through the sliding ring 8. One end of the positioning screw 7 is connected to the side wall of the round rod 2. Specifically, through the cooperation between the sliding ring 8 and the positioning screw 7, the operator can rotate the positioning screw 7 to make the sliding ring 8 slide up and down on the round rod 2, thereby adjusting the position of the positioning ring 5 on the round rod 2. When the positioning ring 5 slides to the desired position, tightening the positioning screw 7 will fix the positioning ring 5 on the round rod 2. This design achieves the effect of conveniently adjusting the spacing of the positioning rings 5 ​​to adapt to long shaft parts of different lengths.

[0042] A plurality of positioning holes 6, which are adapted to the positioning screws 7, are provided on one side of the round rod 2. The positioning holes 6 are arranged in a linear array along the vertical direction of the round rod 2. Specifically, by setting the positioning holes 6 on one side of the round rod 2 and cooperating with the positioning screws 7 and the positioning holes 6, the operator can screw the positioning screws 7 into different positioning holes 6, thereby achieving precise fixation of the positioning ring 5 on the round rod 2. This design achieves the effect of improving positioning accuracy and stability.

[0043] A mounting plate 4 is located at the center of the top of the top ring 3. The mounting plate 4 is connected to the top of the top ring 3 via several fixing rods. A hook hole is provided on one side of the mounting plate 4. Specifically, through the design of the mounting plate 4 and the hook hole, the operator can hook the crane hook into the hook hole, thereby conveniently lifting the entire tooling and the long shaft-like parts clamped within it. This design facilitates lifting and transportation, improving work efficiency and safety.

[0044] This solution includes the following work process:

[0045] This adjustment is achieved by adjusting the positioning structure in the vertical lifting assembly. The positioning structure includes a sliding ring 8 slidably connected to the outer ring of the round rod 2 and a positioning screw 7 with one end threaded through the sliding ring 8. One end of the positioning screw 7 is connected to the side wall of the round rod 2. The operator can rotate the positioning screw 7 to allow the sliding ring 8 to slide up and down on the round rod 2, thereby adjusting the position of the two positioning rings 5 ​​on the round rod 2, and thus adjusting the distance between the two positioning rings 5. Several positioning holes 6, which are adapted to the positioning screw 7, are provided on one side of the round rod 2. These positioning holes 6 are linearly arrayed along the vertical direction of the round rod 2. The operator can screw the positioning screw 7 into different positioning holes 6 to achieve precise fixing of the positioning rings 5 ​​on the round rod 2, accommodating long shaft-like parts of different lengths.

[0046] After adjusting the distance between the two positioning rings 5, the next step is to clamp and position the long shaft-type parts. The positioning ring 5 has several clamping blocks 9 inside. The ends of these clamping blocks 9 away from the adjusting screw 10 have arc-shaped surfaces that mate with the surface of the long shaft-type parts. The clamping blocks 9 are secured by the adjusting screw 10, which is rotatably connected to one side. A handle is fixedly connected to one end of the adjusting screw 10, and the outer ring of the handle has several anti-slip grooves. The operator simply needs to hold the handle and rotate the adjusting screw 10 to bring the clamping blocks 9 closer to the surface of the long shaft-type parts and firmly clamp them, achieving a stable fixation. A handle is also connected to one side of the positioning ring 5, making it easier for the operator to move or adjust the positioning ring 5 without strain.

[0047] Once all long shaft parts are clamped and positioned using their respective vertical lifting components, the entire fixture is ready. At this point, the top ring 3 can be used for hoisting. A mounting plate 4 is located at the center of the top of the top ring 3. The mounting plate 4 is connected to the top of the top ring 3 via several fixing rods, and a hook hole is provided on one side of the mounting plate 4. The operator can hook the crane hook into the hook hole, thus easily hoisting the entire fixture and the long shaft parts clamped within it together.

[0048] After being lifted, the entire structure is sent into a heat treatment furnace for processing. During the heat treatment process, the tooling adopts a vertical lifting component design with a ring array, which allows long shaft parts to be heated evenly, avoiding deformation problems caused by uneven local heating.

[0049] The above-disclosed embodiments are merely one or more preferred embodiments of this application and should not be construed as limiting the scope of this application. Those skilled in the art can understand that all or part of the processes for implementing the above embodiments and equivalent changes made in accordance with the claims of this application still fall within the scope of this application.

Claims

1. A heat treatment fixture for shaft-type parts, characterized in that, include: Bottom ring and top ring; A plurality of vertical lifting components are arranged in a ring array along the circumference of the bottom ring between the bottom ring and the top ring. The vertical lifting assembly includes two round rods and two positioning rings. The top end of the round rod is connected to the top ring, and the bottom end is connected to the bottom ring. The two positioning rings are symmetrically arranged between the two round rods, and both sides of the positioning rings are connected to an adjustment positioning structure that is movably connected to the round rods; The positioning ring has several clamping blocks inside, and one side of each clamping block is rotatably connected to an adjusting screw with one end threaded through the positioning ring.

2. The heat treatment fixture for shaft parts according to claim 1, characterized in that, One end of the adjusting screw is fixedly connected to a handle, and the outer ring of the handle has several anti-slip grooves.

3. The heat treatment fixture for shaft parts according to claim 1, characterized in that, The adjusting positioning structure includes a sliding ring that is slidably connected to the outer ring of the round rod and a positioning screw with one end threaded through the sliding ring. One end of the positioning screw is connected to the side wall of the round rod.

4. The heat treatment fixture for shaft parts according to claim 2, characterized in that, The clamping block has an arc-shaped surface at the end away from the adjusting screw, and a handle is connected to one side of the positioning ring.

5. A heat treatment fixture for shaft parts according to claim 3, characterized in that, The round rod has several positioning holes on one side that are adapted to the positioning screw, and the positioning holes are arranged linearly along the vertical direction of the round rod.

6. The heat treatment fixture for shaft parts according to claim 5, characterized in that, A mounting plate is provided at the top center of the top ring. The mounting plate is connected to the top of the top ring by several fixing rods. A hook hole is provided on one side of the mounting plate.

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