Heat treatment mold and equipment

Abstract

The present application relates to the field of heat treatment equipment, and specifically discloses a heat treatment mold and equipment, which includes a base body and a fixing rod fixed to the base body, the fixing rod is sequentially sleeved with a bottom mold and a top mold from the direction close to the base body to the direction away from the base body, and the fixing rod is located between the bottom mold and the top mold and is also sleeved with one or more middle molds, and a clamping cavity is formed between the bottom mold and the middle mold, between the top mold and the middle mold, and between each adjacent middle mold, and the clamping cavity is adapted to the shape of the workpiece, so as to facilitate the installation of multiple workpieces and form a limit for the workpiece. The present application has the advantages of convenient installation, small occupied volume and high limit accuracy.

Description

Technical Field

[0001] The present application relates to the field of heat treatment equipment, and in particular to a heat treatment mold and equipment. Background Art

[0002] Heat treatment is an important process in the processing of metal materials. It changes the internal structure of metal materials through a specific procedure of heating and cooling, thereby improving or giving the materials the required mechanical, physical and chemical properties. Heat treatment processes are widely used in the production of various metal products, including tools, mechanical parts, aerospace components, etc.

[0003] Since the workpiece will expand and deform during the heat treatment process, the final shape of the workpiece will be different from the preset shape, affecting the processing accuracy of the workpiece. In the related technology, the workpiece is usually placed in a mold, and the mold is used to squeeze and clamp the workpiece, and the workpiece is limited to prevent the workpiece from deforming during the heat treatment process.

[0004] However, when commonly used molds are loaded with a large number of workpieces at the same time, they not only occupy a large volume, but are also troublesome to install and disassemble. Utility Model Content

[0005] In order to improve the convenience of loading the workpiece into the mold, the present application provides a heat treatment mold and equipment, which have the advantages of easy installation, small occupied volume and high limiting accuracy.

[0006] In the first aspect, a heat treatment mold provided by the present application adopts the following technical solution:

[0007] A heat treatment mold comprises a base body and a fixing rod fixed to the base body, wherein the fixing rod is sleeved with a bottom mold and a top mold in sequence from close to the base body to far away from the base body, the fixing rod is located between the bottom mold and the top mold and is also sleeved with one or more middle molds, and clamping cavities are formed between the bottom mold and the middle mold, between the top mold and the middle mold, and between adjacent middle molds, and the clamping cavity is adapted to the shape of the workpiece, the fixing rod is located on the side of the top mold away from the bottom mold and is sleeved with a pressure ring, and the fixing rod is provided with a locking piece for fixing the position of the pressure ring.

[0008] By adopting the above technical solution, the workpiece is pressed into a clamping cavity of a matching shape by using a pressure ring, which can form an all-round limit on the workpiece, avoid deformation of the workpiece during heat treatment, and improve the heat treatment accuracy; at the same time, by setting up multiple middle molds and using the interlayer to form a clamping cavity to install the workpiece, more workpieces can be loaded at the same time, thereby improving the utilization efficiency of the mold and reducing production costs.

[0009] Optionally, a disc spring is provided between the pressure ring and the top mold.

[0010] By adopting the above technical solution, the disc spring is used to apply continuous elastic force to the top mold along the axial direction of the fixed rod to form a pressure-holding effect on the workpiece, thereby avoiding the limitation effect on the workpiece affected by mold expansion or deformation during heat treatment.

[0011] Optionally, the locking member includes a positioning pin, and a positioning hole is formed through the fixing rod on a side of the pressure ring away from the top mold, the positioning pin is inserted into the positioning hole, and the positioning pin abuts against the pressure ring.

[0012] By adopting the above technical solution, the pressure ring can be conveniently fixed or released by utilizing the cooperation of the positioning pin and the positioning hole, which is convenient to operate and can improve the efficiency of mold installation and disassembly.

[0013] Optionally, a first abutment slope is provided on a side of the positioning pin away from the pressure ring, and a second abutment slope is correspondingly provided on the inner wall of the positioning hole.

[0014] By adopting the above technical solution, the stability of the locating pin in the locating hole is further improved by utilizing the cooperation of the two inclined surfaces, thereby improving the locking effect.

[0015] Optionally, when the first abutting inclined surface is pressed against the second abutting inclined surface, there is a gap between the side of the locating pin close to the pressure ring and the inner wall of the locating hole.

[0016] By adopting the above technical solution, it is possible to ensure that the locating pin keeps the pressure ring in the position when it is pressed by the hydraulic press, avoiding the formation of a gap between the locating pin and the pressure ring due to molding or assembly errors, thereby affecting the limiting effect.

[0017] In the second aspect, the present application provides a heat treatment device adopting the following technical solution:

[0018] A heat treatment equipment adopts the above-mentioned heat treatment mold, including a heating furnace, a feeding and discharging mechanism, a switching mechanism and a conveying mechanism. The heating furnace is used to heat workpieces and has a conveying port for taking and placing workpieces. A turntable for carrying workpieces is rotatably arranged in the heating furnace, and the turntable drives the workpieces to pass through the conveying port in sequence. The feeding and discharging mechanism is arranged at the conveying port and is used to take and place the workpieces in the heating furnace. The feeding and discharging mechanism forms a first material changing area. The conveying mechanism is located on one side of the feeding and discharging mechanism and is used to transport the workpieces to be processed and the processed workpieces back and forth. The conveying mechanism forms a second material changing area. The switching mechanism is used to exchange the positions of the workpieces in the first material changing area and the second material changing area. The conveying mechanism also forms a loading and unloading area for loading and unloading workpieces.

[0019] By adopting the above technical scheme, the turntable is used to drive the workpieces to move along the same trajectory in the heating furnace. Even if the temperature of the heating furnace is not completely uniform, the heat treatment path experienced by each workpiece is the same, so that the temperature experienced by each workpiece is the same, ensuring that there is no difference in the heat treatment temperature between the workpieces, thereby improving the heat treatment accuracy; the feed and discharge mechanism is used to take out and put in the workpieces one by one, and the conveying mechanism is used to transport the workpieces one by one, without the need to transport large quantities of workpieces at the same time, reducing labor intensity and helping to improve work efficiency; the exchange mechanism is used to exchange the positions of the workpieces in the first material exchange area and the second material exchange area to realize the circulation of processed workpieces and workpieces to be processed, forming a cyclic and uninterrupted heat treatment process, which greatly improves the efficiency of the heat treatment, and does not require the configuration of a large number of molds to realize the circulation, thereby avoiding the cost of customizing a large number of molds.

[0020] Optionally, the exchange mechanism has two movable ends for picking up and placing workpieces, the two movable ends are respectively located in the first material exchange area and the second material exchange area, and there is a rotation point in the middle of the two movable ends. After the two movable ends grab the workpiece, they rotate 180° around the rotation point as the center to exchange the workpieces in the first material exchange area and the second material exchange area.

[0021] By adopting the above technical solution, after the two movable ends are used to grab the workpiece, the workpieces in the first material changing area and the second material changing area are rotated 180 degrees to synchronously exchange positions, which further speeds up the workpiece circulation speed and improves the efficiency of workpiece heat treatment.

[0022] Optionally, the switching mechanism includes a lifting frame, a rotating arm and two material picking claws. The rotating arm is horizontally arranged and rotatably installed on the lifting frame. The lifting frame drives the rotating arm to lift and lower in the vertical direction. The two material picking claws are respectively fixed at both ends of the rotating arm, and the two material picking claws are respectively located in the first material changing area and the second material changing area. The material picking claws include a mounting plate and hooks fixed at the four corners of the mounting plate. The end of the hook away from the mounting plate is bent toward the center of the mounting plate to form a supporting part. Before grabbing the mold, the height of the supporting part is lower than the bottom surface of the mold.

[0023] By adopting the above technical solution, the template can be grabbed by raising the material picking claws using the lifting frame and making the supporting part abut against the bottom of the template. The supporting part applies an upward supporting force to the mold in the vertical direction, and the force application efficiency is high. Compared with clamping from the side of the mold, it can improve the stability of grasping and can meet the grasping needs of heavier molds.

[0024] In summary, the present application includes at least one of the following beneficial technical effects:

[0025] 1. Using a pressure ring to press the workpiece tightly in a clamping cavity with a matching shape can form an all-round limit for the workpiece, avoid deformation of the workpiece during heat treatment, and improve the heat treatment accuracy; at the same time, by setting multiple middle molds and using the sandwich to form a clamping cavity to install the workpiece, more workpieces can be loaded at the same time, which improves the utilization efficiency of the mold and reduces production costs;

[0026] 2. The turntable is used to drive the workpieces to move along the same trajectory in the heating furnace. Even if the temperature of the heating furnace is not completely uniform, the heat treatment path experienced by each workpiece is the same, so that the temperature experienced by each workpiece is the same, ensuring that there is no difference in the heat treatment temperature between the workpieces, and improving the heat treatment accuracy; the in-and-out mechanism is used to take out and put in the workpieces one by one, and the conveying mechanism is used to transport the workpieces one by one. There is no need to transport a large number of workpieces at the same time, which reduces labor intensity and helps to improve work efficiency; the exchange mechanism is used to exchange the positions of the workpieces in the first material exchange area and the second material exchange area to realize the circulation of the processed workpieces and the workpieces to be processed, forming a cyclic and uninterrupted heat treatment process, which greatly improves the efficiency of the heat treatment, and there is no need to configure a large number of molds to realize the circulation, avoiding the cost of customizing a large number of molds;

[0027] 3. After grabbing the workpiece with the two movable ends, rotate 180° to synchronously exchange the positions of the workpieces in the first material changing area and the second material changing area, further speeding up the workpiece circulation speed and improving the efficiency of the workpiece heat treatment. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a schematic diagram of the overall structure of a heat treatment mold in an embodiment of the present application;

[0029] Figure 2 is a schematic diagram of another perspective of a heat treatment mold in an embodiment of the present application;

[0030] Figure 3 is a top view of a heat treatment device according to an embodiment of the present application;

[0031] Figure 4 is a side view of a heat treatment device according to an embodiment of the present application;

[0032] Figure 5 It is a schematic diagram of an embodiment of the present application for displaying a replacement mechanism.

[0033] : 00, workpiece; 1, heating furnace; 11, conveying port; 12, turntable; 2, feeding and discharging mechanism; 21, first material changing area; 3, conveying mechanism; 31, second material changing area; 32, loading and unloading area; 33, hydraulic press; 4, switching mechanism; 41, lifting frame; 42, rotating arm; 43, material picking claw; 431, mounting plate; 432, hook; 433, supporting part; 5, mold; 51, seat body; 52, fixing rod; 521, positioning hole; 522, second abutting slope; 53, bottom mold; 54, top mold; 55, middle mold; 56, pressure ring; 57, locking piece; 571, positioning pin; 572, first abutting slope; 58, disc spring. DETAILED DESCRIPTION

[0034] The following is combined with Figure 1-5 This application is described in further detail.

[0035] The present application embodiment discloses a heat treatment mold, referring to Figure 1 and Figure 2 , including a base body 51 and a fixing rod 52 fixed to the base body 51, the fixing rod 52 is sequentially sleeved with a bottom mold 53 and a top mold 54 from the direction close to the base body 51 to the direction away from the base body 51, and at the same time, the fixing rod 52 is located between the bottom mold 53 and the top mold 54 and is also sleeved with one or more middle molds 55, and clamping cavities are formed between the bottom mold 53 and the middle mold 55, between the top mold 54 and the middle mold 55, and between each adjacent middle mold 55, and the clamping cavity is adapted to the shape of the workpiece 00.

[0036] In this embodiment, one middle mold 55 is provided. In other embodiments, the number of middle molds 55 may be other as required.

[0037] In addition, a pressure ring 56 is sleeved on the fixing rod 52 at the side of the top die 54 away from the bottom die 53. The pressure ring 56 is used to press the bottom die 53, the middle die 55 and the top die 54, and a locking member 57 is provided on the fixing rod 52 to fix the position of the pressure ring 56. The pressure ring 56 presses the multiple workpieces 00 in the corresponding clamping cavities and fixes the positions through the locking member 57 to ensure that the workpieces 00 can maintain their original shapes during the heat treatment process, thereby improving the effect and accuracy of the heat treatment.

[0038] Further, refer to Figure 1 and Figure 2 The locking member 57 includes a positioning pin 571. A positioning hole 521 is formed in the radial direction of the fixing rod 52. The positioning pin 571 is inserted into the positioning hole 521, and the positioning pin 571 abuts against the pressing ring 56. The side wall of the positioning hole 521 forms a limiting effect on the positioning pin 571 along the radial direction of the fixing rod 52, thereby limiting the position of the pressing ring 56, ensuring that the pressing ring 56 presses the workpiece 00 tightly in the clamping cavity.

[0039] Preferably, a first abutting slope 572 is provided on the side of the positioning pin 571 away from the pressure ring 56, and a second abutting slope 522 is correspondingly provided on the inner wall of the positioning hole 521. As the positioning pin 571 gradually extends into the positioning hole 521, the first abutting slope 572 abuts against the second abutting slope 522, and the side of the positioning pin 571 away from the first abutting slope 572 abuts against the pressure ring 56, so as to limit the pressure ring 56.

[0040] Moreover, when the first abutting inclined surface 572 is pressed against the second abutting inclined surface 522, there is a gap between the side of the positioning pin 571 close to the pressing ring 56 and the inner wall of the positioning hole 521, so as to ensure that the positioning pin 571 can be tightly pressed against the pressing ring 56. The cooperation of the two inclined surfaces can ensure that the positioning pin 571 keeps the pressing ring 56 in the position when it is pressed by the hydraulic press 33, and avoids the formation of a gap between the positioning pin 571 and the pressing ring 56 due to molding or assembly errors, which affects the limiting effect.

[0041] Further, refer to Figure 1 and Figure 2 A disc spring 58 is provided between the pressure ring 56 and the top die 54, and the disc spring 58 is used to form an elastic force along the axial direction of the fixing rod 52. After the pressure ring 56 presses the disc spring 58, the disc spring 58 applies a continuous elastic force to the top die 54 to form a pressure-maintaining effect on the workpiece 00, so as to prevent the expansion or deformation of the mold 5 during the heat treatment process from affecting the limiting effect on the workpiece 00. In this embodiment, the disc spring 58 is provided with two pieces.

[0042] The implementation principle of a heat treatment mold disclosed in the embodiment of the present application is:

[0043] The bottom mold 53, the middle mold 55 and the top mold 54 are used to limit the workpiece 00 in all directions, effectively preventing the workpiece 00 from deforming during the heat treatment process, improving the heat treatment effect of the workpiece 00 and the molding accuracy of the workpiece 00; the positioning pin 571 cooperates with the pressure ring 56 to press the workpiece 00, ensuring that the mold 5 can continue to maintain the limiting effect on the workpiece 00.

[0044] The present application also discloses a heat treatment device, using the above-mentioned heat treatment mold, referring to Figure 3 and Figure 4, including a heating furnace 1, a material inlet and outlet mechanism 2, a switching mechanism 4 and a conveying mechanism 3. The heating furnace 1 is used to heat the workpiece 00 in the furnace to achieve heat treatment. The heating furnace 1 has a conveying port 11 for taking and placing the workpiece 00. At the same time, a turntable 12 for carrying the workpiece 00 is rotatably arranged in the heating furnace 1. The rotation of the turntable 12 drives the workpiece 00 to pass through the conveying port 11 in sequence; the material inlet and outlet mechanism 2 is arranged at the conveying port 11, and cooperates with the rotating turntable 12 to take and place the workpiece 00 in the heating furnace 1 one by one; the conveying mechanism 3 is arranged on one side of the material inlet and outlet mechanism 2, and is used to transport the workpiece to be processed 00 and the processed workpiece 00 back and forth; the position of the material inlet and outlet mechanism 2 near the conveying mechanism 3 forms a first material changing area 21, the position of the conveying mechanism 3 near the material inlet and outlet mechanism 2 forms a second material changing area 31, and the end of the conveying mechanism 3 away from the first material changing area 21 forms a loading and unloading area 32, and the switching mechanism 4 is used to exchange the positions of the workpieces 00 in the first material changing area 21 and the second material changing area 31.

[0045] In addition, by controlling the rotation speed of the turntable 12, the time for the turntable 12 to rotate one circle is equal to the time required for the workpiece 00 to complete the heat treatment. That is, when the workpiece 00 moves one circle in the heating furnace 1 and passes through the conveying port 11 again, the heat treatment is just completed. At this time, the processed workpiece 00 is taken out by the feeding and discharging mechanism 2, and the workpiece 00 is replaced by the replacement mechanism 4, and the untreated workpiece 00 is placed in the heating furnace 1. By repeating the above process continuously, the heating furnace 1 can continuously perform heat treatment on the workpiece 00, eliminating the time of heat treatment interruption caused by the traditional heat treatment equipment taking and placing the workpiece 00, and greatly improving the heat treatment efficiency.

[0046] Reference Figure 3 and Figure 4 The exchange mechanism 4 has two movable ends for picking up and placing the workpiece 00, and the two movable ends are respectively located in the first material exchange area 21 and the second material exchange area 31. The two movable ends are located in the middle position and have a rotation point. The two movable ends can be exchanged by rotating around the rotation point. After the two movable ends correspondingly grab the workpiece 00 in the first material exchange area 21 and the second material exchange area 31, they rotate 180° around the rotation point to exchange the position of the workpiece 00. The exchange mechanism 4 can use a manipulator or a conventional clamping tool to grab the workpiece 00.

[0047] In this embodiment, the loading and unloading area 32 of the conveying mechanism 3 is provided with a hydraulic press 33. The hydraulic press 33 is used to press the pressing ring 56, and the staff inserts the limit pin, and then the hydraulic press 33 is reset, and the limit pin can limit the pressing ring 56; when disassembling, the hydraulic press 33 presses the pressing ring 56, and the staff can pull out the limit pin. Compared with the bolt fixing method, the operation is convenient and the work efficiency is greatly improved.

[0048] In this embodiment, after the workpiece 00 is placed in the mold 5, the mold 5 loaded with the workpiece 00 is transferred between the heating furnace 1, the feeding and discharging mechanism 2, the replacement mechanism 4 and the conveying mechanism 3. The workpiece 00 to be processed is loaded into the mold 5 by the hydraulic press 33 in the loading and unloading area 32 of the conveying mechanism 3, and the conveying mechanism 3 conveys the mold 5 loaded with the workpiece 00 to be processed to the second material replacement area 31; the feeding and discharging mechanism 2 takes out the mold 5 loaded with the processed workpiece 00 from the conveying port 11 and conveys it to the first material replacement area 21;

[0049] The exchange mechanism 4 exchanges the positions of the molds 5 located in the first material exchange area 21 and the second material exchange area 31, and then the conveying mechanism 3 conveys the molds 5 loaded with the processed workpieces 00 to the loading and unloading area 32, and the feeding and discharging mechanism 2 places the molds 5 loaded with the unprocessed workpieces 00 from the conveying port 11 to the turntable 12;

[0050] When the mold 5 loaded with the workpiece 00 to be processed passes through the conveying port 11 again driven by the turntable 12, the workpiece 00 completes the heat treatment, the feeding and unloading mechanism 2 takes out the mold 5, and puts in a new mold 5 loaded with the workpiece 00 to be processed; and the mold 5 loaded with the processed workpiece 00 is transported to the loading and unloading area 32, disassembled with the help of the hydraulic press 33, the processed workpiece 00 is taken away, and the new workpiece 00 to be processed is directly loaded on the hot mold 5 and sent to the heating furnace 1 for heating.

[0051] Since the workpiece 00 is heavy after being loaded into the mold 5, it is difficult for an ordinary manipulator to grasp it. In this embodiment, in order to improve the stability of the mold 5 when it is replaced, a lifting grasping method is used instead of the traditional clamping grasping method.

[0052] Specifically, refer to Figure 3 and Figure 5 The replacement mechanism 4 includes a lifting frame 41, a rotating arm 42 and two material picking claws 43. The lifting frame 41 is set on the ground, the rotating arm 42 is horizontally set and rotatably installed on the lifting frame 41, and the lifting frame 41 can drive the rotating arm 42 to rise and fall in the vertical direction. The two material picking claws 43 are respectively fixed at both ends of the rotating arm 42 and are respectively located in the first material changing area 21 and the second material changing area 31. After the material picking claws 43 grab the mold 5, they drive the rotating arm 42 to rotate, so that the position of the mold 5 can be replaced.

[0053] Among them, the material picking claw 43 includes a mounting plate 431 and hooks 432 fixed to the four corners of the mounting plate 431. The hooks 432 are arranged perpendicular to the mounting plate 431, and one end of the hook 432 away from the mounting plate 431 is bent toward the center of the mounting plate 431 to form a supporting portion 433 for supporting the bottom of the mold 5, and a grabbing space for grabbing the mold 5 is formed between the four hooks 432.

[0054] Before grabbing the mold 5, the two material claws 43 are respectively located in the first material change area 21 and the second material change area 31, and the height of the supporting part 433 is lower than the bottom surface of the mold 5. As the feeding and discharging mechanism 2 and the conveying mechanism 3 transport the mold 5 to the first material change area 21 and the second material change area 31 respectively, the mold 5 gradually moves to the grabbing space. When the mold 5 is located in the grabbing space, the supporting parts 433 of the four hooks 432 are just located at the four corners of the bottom of the mold 5. The rotating arm 42 is driven to rise so that the supporting parts 433 abut against the bottom of the mold 5, and the mold 5 can be grabbed. The rotating arm 42 is driven to rotate to change the position of the mold 5. After lowering the rotating arm 42, the mold 5 can be placed on the feeding and discharging mechanism 2 and the conveying mechanism 3. After that, the exchange mechanism 4 continuously repeats the above process to realize the circulation of the mold 5, and the lifting and pulling grabbing method is more stable and can meet the needs of the turnover of heavy-weight molds 5.

[0055] The implementation principle of a heat treatment device disclosed in the embodiment of the present application is:

[0056] The clamping cavity formed by the bottom mold 53, the top mold 54 and the middle mold 55 is used to limit the workpiece 00 to prevent the workpiece 00 from being deformed during the heat treatment process, thereby improving the accuracy of the heat treatment;

[0057] The feeding and discharging mechanism 2 transports the mold 5 loaded with the workpiece 00 to be processed from the first material changing area 21 to the turntable 12 in the heating furnace 1, and transports the mold 5 loaded with the processed workpiece 00 on the turntable 12 to the first material changing area 21;

[0058] The conveying mechanism 3 conveys the mold 5 loaded with the workpiece 00 to be processed to the second material changing area 31, or conveys the mold 5 loaded with the processed workpiece 00 to the loading and unloading area 32 for disassembly;

[0059] The exchange mechanism 4 exchanges the positions of the workpieces 00 in the first material exchange area 21 and the second material exchange area 31 to realize the circulation of the processed workpieces 00 and the workpieces to be processed 00, forming a cyclic and uninterrupted heat treatment process, which greatly improves the efficiency of the heat treatment, and does not need to configure a large number of molds 5 to realize the circulation, avoiding the cost of customizing a large number of molds 5.

[0060] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A heat treatment mold, characterized in that: The invention comprises a base body (51) and a fixing rod (52) fixed to the base body (51), wherein the fixing rod (52) is sleeved with a bottom die (53) and a top die (54) in sequence from close to the base body (51) to far away from the base body (51), wherein the fixing rod (52) is located between the bottom die (53) and the top die (54) and is also sleeved with one or more middle dies (55), wherein clamping cavities are formed between the bottom die (53) and the middle die (55), between the top die (54) and the middle die (55), and between adjacent middle dies (55) and the middle die (55), wherein the clamping cavities are adapted to the shape of the workpiece (00), wherein a pressure ring (56) is sleeved on the side of the fixing rod (52) located on the top die (54) far away from the bottom die (53), and the fixing rod (52) is provided with a locking member (57) for fixing the position of the pressure ring (56).

2. A heat treatment mold according to claim 1, characterized in that: A disc spring (58) is provided between the pressure ring (56) and the top mold (54).

3. A heat treatment mold according to claim 1, characterized in that: The locking member (57) comprises a positioning pin (571), and a positioning hole (521) is formed through the fixing rod (52) on a side of the pressing ring (56) away from the top mold (54), the positioning pin (571) is inserted into the positioning hole (521), and the positioning pin (571) abuts against the pressing ring (56).

4. A heat treatment mold according to claim 3, characterized in that: A first abutting inclined surface (572) is provided on the side of the positioning pin (571) away from the pressure ring (56), and a second abutting inclined surface (522) is correspondingly provided on the inner wall of the positioning hole (521).

5. A heat treatment mold according to claim 4, characterized in that: When the first abutting inclined surface (572) is pressed against the second abutting inclined surface (522), a gap exists between the side of the positioning pin (571) close to the pressure ring (56) and the inner wall of the positioning hole (521).

6. A heat treatment equipment, using a heat treatment mold according to any one of claims 1 to 5, characterized in that: The invention comprises a heating furnace (1), a material inlet and outlet mechanism (2), a replacement mechanism (4) and a conveying mechanism (3); the heating furnace (1) is used to heat a workpiece (00) and has a conveying port (11) for taking and placing the workpiece (00); a rotating disk (12) for carrying the workpiece (00) is rotatably arranged in the heating furnace (1); the rotating disk (12) drives the workpiece (00) to pass through the conveying port (11) in sequence; the material inlet and outlet mechanism (2) is arranged at the conveying port (11) and is used to take and place the workpiece in the heating furnace (1). The invention relates to a processing device for processing a workpiece (00), wherein the feeding and discharging mechanism (2) is provided with a first material exchange area (21), the conveying mechanism (3) is located on one side of the feeding and discharging mechanism (2) and is used for conveying the workpiece to be processed (00) and the processed workpiece (00) back and forth, the conveying mechanism (3) is provided with a second material exchange area (31), the exchange mechanism (4) is used for exchanging the positions of the workpieces (00) in the first material exchange area (21) and the second material exchange area (31), and the conveying mechanism (3) is further provided with a loading and unloading area (32) for loading and unloading the workpieces (00).

7. A heat treatment equipment according to claim 6, characterized in that: The exchange mechanism (4) has two movable ends for picking up and placing the workpiece (00), the two movable ends are respectively located in the first material exchange area (21) and the second material exchange area (31), and a rotation point is provided at the middle position of the two movable ends. After the two movable ends grasp the workpiece (00), they rotate 180 degrees with the rotation point as the center, so as to exchange the positions of the workpiece (00) in the first material exchange area (21) and the second material exchange area (31).

8. A heat treatment equipment according to claim 7, characterized in that: The exchange mechanism (4) comprises a lifting frame (41), a rotating arm (42) and two material picking claws (43); the rotating arm (42) is horizontally arranged and rotatably mounted on the lifting frame (41); the lifting frame (41) drives the rotating arm (42) to rise and fall in a vertical direction; the two material picking claws (43) are respectively fixed at two ends of the rotating arm (42); and the two material picking claws (43) are respectively located in a first material changing area (21) and a second material changing area (31); the material picking claws (43) comprise a mounting plate (431) and hooks (432) fixed at four corners of the mounting plate (431); an end of the hook (432) away from the mounting plate (431) is bent toward the center of the mounting plate (431) to form a supporting portion (433); before grabbing the mold (5), the height of the supporting portion (433) is lower than the bottom surface of the mold (5).

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