Shaft workpiece heat treatment positioning anti-deformation device

Abstract

The utility model relates to metal heat treatment equipment technical field especially relates to a kind of shaft workpiece heat treatment positioning anti-deformation device.The technical scheme comprising shell body and the heat treatment mechanism of being set to the inner wall of shell body, the heat treatment mechanism includes the heating coil pipe fixed in the inner wall of shell body, the inner wall of heating coil pipe is fixedly connected with inner shell, the bottom end of inner shell is fixedly connected with bottom plate, the top of bottom plate is fixedly connected with inner shelf plate, the outer wall of inner shelf plate is fixedly connected with multiple heat terminals, the top of bottom plate is located between inner shelf plate and is provided with anti-deformation mechanism.The utility model discloses shaft workpiece heat treatment positioning anti-deformation device, with the positioning and support of multi-direction, accurate of shaft workpiece, combined with uniform heating environment, effectively reduce the deformation of shaft workpiece in heat treatment process, greatly improve the size accuracy and quality stability of shaft workpiece function.

Description

Technical Field

[0001] This utility model relates to the technical field of metal heat treatment equipment, and in particular to a positioning and anti-deformation device for shaft-type workpieces during heat treatment. Background Technology

[0002] Heat treatment of shaft-type workpieces refers to the process of heating, holding, and cooling steel in a solid state to obtain the desired microstructure and properties. Heat treatment can significantly improve the mechanical properties of steel, unlock the strength potential of the material, improve the performance of parts, and enhance product quality and service life. However, during the heat treatment of shaft-type workpieces, deformation is easily caused due to uneven heating and changes in internal stress. Traditional heat treatment methods often lack effective positioning and anti-deformation measures, leading to bending, warping, and other deformation phenomena after heat treatment. Deformed workpieces not only require additional straightening and repair processes, increasing production costs and processing time, but also seriously affect the performance and quality of the workpiece. Therefore, this application proposes a positioning and anti-deformation device for heat treatment of shaft-type workpieces. Utility Model Content

[0003] The purpose of this invention is to address the problem in the prior art where ineffective positioning and anti-deformation measures are lacking, leading to bending, warping, and other deformation phenomena in shaft workpieces after heat treatment. This invention proposes a positioning and anti-deformation device for shaft workpieces during heat treatment.

[0004] The technical solution of this utility model is as follows: a heat treatment positioning and anti-deformation device for shaft workpieces, including an outer shell and a heat treatment mechanism disposed on the inner wall of the outer shell. The heat treatment mechanism includes a heating coil fixed to the inner wall of the outer shell. An inner shell is fixedly connected to the inner wall of the heating coil. A base plate is fixedly connected to the bottom end of the inner shell. An inner frame plate is fixedly connected to the top end of the base plate. A plurality of heat-conducting terminals are fixedly connected to the outer wall of the inner frame plate.

[0005] The top of the base plate is provided with an anti-deformation mechanism located between the inner frame plates;

[0006] The outer wall of the outer casing is provided with a clamping mechanism.

[0007] Optionally, the anti-deformation mechanism includes multiple rotating seats at the top of the fixed base plate, and anti-deformation fixing sleeves are rotatably connected to one side of the outer wall of each of the multiple rotating seats, with the multiple anti-deformation fixing sleeves arranged in pairs.

[0008] Optionally, each of the anti-deformation fixing sleeves on one side is fixedly connected to a pneumatic rod, one end of each of the pneumatic rods is fixedly connected to an air pump, and a fixing block penetrates the outer wall of each of the pneumatic rods. A connecting block two is fixedly connected to one side of each of the air pumps, and one side of each connecting block two is fixedly connected to one end of the anti-deformation fixing sleeve on the other side.

[0009] Optionally, the top of the inner frame plate is provided with a slot, and the multiple air pumps and pneumatic rods are located in the slot.

[0010] Optionally, multiple sliding sleeves are fixedly connected to both ends of the inner wall of the inner frame plate, and positioning sleeves are slidably connected to the inner walls of the multiple sliding sleeves. An insertion cavity is opened at the center of the multiple positioning sleeves.

[0011] Optionally, the clamping mechanism includes multiple connecting seats fixed to both ends of the outer wall of the outer shell, one end of each connecting seat is fixedly connected to a telescopic rod, and the end of each telescopic rod away from the connecting seat is fixedly connected to a connecting block.

[0012] Optionally, a clamp is fixedly connected to one side of the outer wall of one of the multiple connecting blocks, and the multiple clamps are all corresponding to the insertion cavity.

[0013] Compared with the prior art, this application includes at least one of the following beneficial technical effects: This device uses an anti-deformation mechanism to perform multi-directional and precise positioning and support of shaft workpieces. Combined with a uniform heating environment, it effectively reduces the deformation of shaft workpieces during heat treatment, greatly improves the dimensional accuracy and quality stability of shaft workpieces, and reduces the scrap rate and repair costs caused by deformation. The clamping mechanism and anti-deformation mechanism of the device can quickly and accurately clamp and fix shaft workpieces, reducing the time for workpiece clamping and adjustment. At the same time, because it effectively prevents workpiece deformation, it reduces subsequent straightening and other repair processes, thus shortening the entire heat treatment processing cycle. Attached Figure Description

[0014] Figure 1 A three-dimensional structural schematic diagram of a positioning and anti-deformation device for heat treatment of shaft-type workpieces;

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

[0016] Figure 3 This is a schematic diagram of the base plate connection structure;

[0017] Figure 4 This is a schematic diagram of the positioning sleeve connection structure.

[0018] Reference numerals: 1. Outer shell; 2. Connecting seat; 3. Telescopic rod; 4. Connecting block one; 5. Clamp; 6. Inner shell; 7. Heating coil; 8. Inner frame plate; 9. Heat-conducting terminal; 10. Anti-deformation fixing sleeve; 11. Base plate; 12. Rotating seat; 13. Pneumatic rod; 14. Fixing block; 15. Air pump; 16. Connecting block two; 17. Empty groove; 18. Sliding sleeve; 19. Positioning sleeve; 20. Insertion cavity. Detailed Implementation

[0019] The technical solution of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are some embodiments of this utility model, but not all embodiments.

[0020] The components of the present invention embodiments described and shown in the accompanying drawings can typically be arranged and designed in a variety of different configurations. Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention.

[0021] Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0022] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0023] It should be noted that the terms "comprising," "including," or any other variations thereof are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. In this specification, illustrative expressions of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0024] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0025] Example 1

[0026] like Figure 1 and Figure 2 As shown, this utility model proposes a heat treatment positioning and anti-deformation device for shaft-type workpieces, including an outer shell 1 and a heat treatment mechanism disposed on the inner wall of the outer shell 1. The heat treatment mechanism includes a heating coil 7 fixed to the inner wall of the outer shell 1. An inner shell 6 is fixedly connected to the inner wall of the heating coil 7. A base plate 11 is fixedly connected to the bottom end of the inner shell 6. An inner frame plate 8 is fixedly connected to the top end of the base plate 11. Multiple heat-conducting terminals 9 are fixedly connected to the outer wall of the inner frame plate 8. The heating coil 7 is fixedly installed on the inner wall of the outer shell 1. The heating coil 7 is made of high-temperature resistant and corrosion-resistant stainless steel and has an internal heating wire. It can be adjusted according to the heat treatment... The process requires adjusting the heating temperature and speed. The inner wall of the heating coil 7 is fixedly connected to the inner shell 6. The inner shell 6 is made of ceramic fiber material with good heat insulation performance, which can effectively reduce heat loss and provide a stable heating space for shaft-type workpieces. The bottom plate 11 fixed at the bottom of the inner shell 6 is used to support the inner frame plate 8 and the shaft-type workpieces, ensuring the stability of the internal structure of the device. The outer wall of the inner frame plate 8 fixed at the top of the bottom plate 11 is fixedly connected to multiple heat-conducting terminals 9. The heat-conducting terminals 9 can quickly and evenly transfer the heat generated by the heating coil 7 to the surface of the shaft-type workpieces, ensuring that the shaft-type workpieces are heated evenly and reducing the risk of deformation caused by temperature difference.

[0027] And, as Figure 2 , Figure 3 and Figure 4As shown, an anti-deformation mechanism is provided at the top of the base plate 11 between the inner frame plates 8. The anti-deformation mechanism includes multiple rotating seats 12 that fix the top of the base plate 11. Anti-deformation fixing sleeves 10 are rotatably connected to one side of the outer wall of each of the multiple rotating seats 12. The multiple anti-deformation fixing sleeves 10 are arranged in pairs. Pneumatic rods 13 are fixedly connected to one side of each anti-deformation fixing sleeve 10. Air pumps 15 are fixedly connected to one end of each of the multiple pneumatic rods 13, and fixing blocks 14 penetrate through the outer wall of each of the multiple pneumatic rods 13. Connecting blocks 16 are fixedly connected to one side of each of the multiple air pumps 15. One side of each connecting block 16 is fixedly connected to one end of the anti-deformation fixing sleeve 10 at the other end. A slot 17 is opened at the top of the inner frame plate 8. The multiple air pumps 15 and pneumatic rods 13 are all located in the slot 17. Multiple sliding sleeves 18 are fixedly connected to both ends of the inner wall of the inner frame plate 8. Positioning sleeves 19 are slidably connected to the inner wall of each of the multiple sliding sleeves 18. An insertion cavity 20 is opened at the center of each of the multiple positioning sleeves 19. Multiple rotating seats 12 are fixed to the top of the base plate 11, allowing the anti-deformation fixing sleeve 10 to rotate. The multiple anti-deformation fixing sleeves 10 are arranged in pairs, which can be flexibly combined and adjusted according to the length and diameter of the shaft workpiece. The inner wall of the anti-deformation fixing sleeve 10 adopts an arc-shaped design and is covered with a high-temperature resistant, low-friction coefficient polytetrafluoroethylene coating, which can fit tightly with the surface of the shaft workpiece. Without damaging the surface of the workpiece, it provides stable support for the shaft workpiece and limits its displacement and deformation during the heat treatment process. The air pump 15 can precisely control the extension and retraction of the pneumatic rod 13 according to the specifications of the shaft workpiece and the heat treatment process requirements, thereby adjusting the position and clamping force of the anti-deformation fixing sleeve 10. When the shaft workpiece is placed in the device, the air pump 15 starts, the pneumatic rod 13 extends, and drives the anti-deformation fixing sleeve 10 to clamp the shaft workpiece, keeping it stable during the heat treatment process. After the heat treatment is completed, the air pump 15 releases the air pressure, the pneumatic rod 13 retracts, and the anti-deformation fixing sleeve 10 releases the workpiece.

[0028] In addition, such as Figure 1As shown, a clamping mechanism is provided on the outer wall of the outer casing 1. The clamping mechanism includes multiple connecting seats 2 fixed to both ends of the outer wall of the outer casing 1. A telescopic rod 3 is fixedly connected to one end of each connecting seat 2. A connecting block 4 is fixedly connected to the end of each telescopic rod 3 away from the connecting seat 2. A clamp 5 is fixedly connected to one side of the outer wall of each connecting block 4. Each clamp 5 corresponds to the insertion opening 20. The telescopic rod 3 is connected by the multiple connecting seats 2 fixed to both ends of the outer wall of the outer casing 1. The telescopic rod 3 is electrically powered and has adjustable stroke and fast extension speed. Features: By controlling the extension and retraction of the telescopic rod 3, the positions of the connecting block 4 and the clamp 5 can be adjusted to meet the clamping requirements of shaft workpieces of different lengths. The end of the telescopic rod 3 away from the connecting seat 2 is fixed to the connecting block 4, and the clamp 5 is fixed to one side of the outer wall of the connecting block 4. The clamp 5 adopts an elastic chuck, and multiple clamps 5 correspond to the insertion cavity 20 on the positioning sleeve 19 on the inner wall of the inner frame plate 8. When the shaft workpiece is placed into the device, the clamp 5 can first perform preliminary clamping on the shaft workpiece, and then cooperate with the anti-deformation fixing sleeve 10 to achieve precise positioning and stable fixation of the shaft workpiece.

[0029] In this embodiment, when using the device, the shaft-like workpiece is placed into the device through the insertion cavity 20. The telescopic rod 3 of the clamping mechanism is activated, causing the clamp 5 to move towards the shaft-like workpiece and initially clamp it, ensuring the initial stability of the shaft-like workpiece within the device. After initial clamping, the air pump 15 is activated, inputting compressed air into the pneumatic rod 13. The pneumatic rod 13 extends or retracts, causing the anti-deformation fixing sleeve 10 to rotate around the rotating seat 12 and gradually approach the shaft-like workpiece. The inner wall of the anti-deformation fixing sleeve 10 is tightly fitted to the surface of the shaft-like workpiece. Depending on the shape and size of the shaft-like workpiece, through the synergistic action of multiple anti-deformation fixing sleeves 10, the shaft-like workpiece is clamped from multiple directions. The anti-deformation fixing sleeve 10 provides support and fixation, limiting displacement and deformation during heat treatment. Simultaneously, the air pump 15 can precisely adjust the extension and clamping force of the pneumatic rod 13 according to the material of the shaft workpiece and the requirements of the heat treatment process. This ensures that the anti-deformation fixing sleeve 10 effectively fixes the shaft workpiece without causing new deformation due to excessive clamping force. After workpiece clamping and anti-deformation fixing are completed, the heating coil 7 is activated. The heating wire inside the heating coil 7 begins to work, and the generated heat is quickly transferred to the surface of the shaft workpiece through the heat-conducting terminals 9. The heat insulation effect of the inner shell 6 reduces heat loss, allowing the shaft workpiece to undergo heat treatment in a stable temperature environment. During heat treatment, the anti-deformation fixing sleeve 10 continuously supports and fixes the shaft workpiece, effectively resisting deformation tendencies caused by factors such as thermal expansion and changes in internal stress.

[0030] The above specific embodiments are merely several optional embodiments of this utility model. Based on the technical solution of this utility model and the relevant teachings of the above embodiments, those skilled in the art can make various alternative improvements and combinations to the above specific embodiments.

Claims

1. A heat treatment positioning and anti-deformation device for shaft-type workpieces, comprising an outer shell (1) and a heat treatment mechanism disposed on the inner wall of the outer shell (1), characterized in that: The heat treatment mechanism includes a heating coil (7) fixed to the inner wall of the outer shell (1), an inner shell (6) fixedly connected to the inner wall of the heating coil (7), a base plate (11) fixedly connected to the bottom end of the inner shell (6), an inner frame plate (8) fixedly connected to the top end of the base plate (11), and a plurality of heat-conducting terminals (9) fixedly connected to the outer wall of the inner frame plate (8). The top of the base plate (11) is provided with an anti-deformation mechanism between the inner frame plates (8); The outer wall of the outer shell (1) is provided with a clamping mechanism.

2. The heat treatment positioning and anti-deformation device for shaft-type workpieces according to claim 1, characterized in that, The anti-deformation mechanism includes multiple rotating seats (12) at the top of the fixed base plate (11), and anti-deformation fixing sleeves (10) are rotatably connected to one side of the outer wall of each of the multiple rotating seats (12), and the multiple anti-deformation fixing sleeves (10) are in pairs.

3. The heat treatment positioning and anti-deformation device for shaft-type workpieces according to claim 2, characterized in that, Each of the anti-deformation fixing sleeves (10) on one side is fixedly connected to a pneumatic rod (13). One end of each of the pneumatic rods (13) is fixedly connected to an air pump (15), and a fixing block (14) penetrates the outer wall of each of the pneumatic rods (13). One side of each of the air pumps (15) is fixedly connected to a connecting block two (16), and one side of each connecting block two (16) is fixedly connected to one end of the anti-deformation fixing sleeve (10) on the other side.

4. The heat treatment positioning and anti-deformation device for shaft-type workpieces according to claim 3, characterized in that, The top of the inner frame plate (8) is provided with a slot (17), and multiple air pumps (15) and pneumatic rods (13) are located in the slot (17).

5. The heat treatment positioning and anti-deformation device for shaft-type workpieces according to claim 1, characterized in that, Multiple sliding sleeves (18) are fixedly connected to both ends of the inner wall of the inner frame plate (8), and positioning sleeves (19) are slidably connected to the inner walls of the multiple sliding sleeves (18). An insertion cavity (20) is opened at the center of the multiple positioning sleeves (19).

6. The heat treatment positioning and anti-deformation device for shaft-type workpieces according to claim 1, characterized in that, The clamping mechanism includes multiple connecting seats (2) fixed to both ends of the outer wall of the outer shell (1), one end of the multiple connecting seats (2) is fixedly connected to a telescopic rod (3), and the end of the multiple telescopic rod (3) away from the connecting seat (2) is fixedly connected to a connecting block (4).

7. The heat treatment positioning and anti-deformation device for shaft-type workpieces according to claim 6, characterized in that, A clamp (5) is fixedly connected to one side of the outer wall of each of the multiple connecting blocks (4), and each of the multiple clamps (5) corresponds to the insertion cavity (20).

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