A cushion die for preventing workpiece heat treatment deformation

Abstract

The present invention discloses a pad die for preventing workpieces from being deformed during heat treatment, including a base plate and a support frame fixed on the top of the base plate, and also including a plurality of driving members, wherein the plurality of driving members move synchronously, the plurality of driving members are arranged at the top of the support frame, and the driving members are rotatably connected to the support frame; a lifting member, which is arranged on the support frame and can be raised and lowered, a driving member is transmission-connected to a lifting member, and the air outlet end of the lifting member is connected to an exhaust member; a heating member, which is arranged at the top of the base plate, the heating member is slidably connected to the top of the base plate, the lifting member and the heating member are arranged correspondingly, and the lifting member blocks the heating member. The present invention can achieve the goal of not having to set up an additional driving mechanism, and can realize the installation and removal of gears and the rotation of gears during heat treatment, thereby reducing the operation steps during heat treatment of gears and improving their processing efficiency.

Description

Technical Field

[0001] The invention relates to the technical field of gear processing, in particular to a pad die for preventing workpieces from being deformed during heat treatment. Background Art

[0002] During the production process of gears, the gears need to be heat treated. During the heat treatment process, the gears will undergo phase changes due to heat, thus affecting the production quality. Therefore, when heat treating the gears, molds are usually used to limit the gears to prevent them from deformation.

[0003] In the prior art, although there are molds for heat treatment of gears, there are still some problems in actual use. First, when performing heat treatment, the operating steps of installing and removing the mold for the gears are relatively complicated, which reduces the processing efficiency. Secondly, when heating the gears, in order to ensure that they are heated evenly, an additional driving mechanism needs to be set up to rotate the gears or the heating element, thereby improving the heating effect. The setting of the driving mechanism, on the one hand, makes the structure of the heat treatment device more complicated, and on the other hand, adds operating steps. Summary of the invention

[0004] The object of the present invention is to provide a pad mold for preventing deformation of a workpiece during heat treatment, so as to solve the problems existing in the above-mentioned prior art and to achieve the goal that no additional driving mechanism is required. During heat treatment, both the installation and removal of gears and the rotation of gears can be achieved, thereby reducing the operating steps during heat treatment of gears and improving their processing efficiency.

[0005] To achieve the above object, the present invention provides the following solution: The present invention provides a pad die for preventing workpieces from being deformed during heat treatment, comprising a bottom plate and a support frame fixed to the top of the bottom plate, and further comprising:

[0006] A plurality of driving members are provided, the plurality of driving members move synchronously, the plurality of driving members are provided at the top of the support frame, and the driving members are rotatably connected to the support frame;

[0007] A lifting member is arranged on the support frame, the lifting member can be raised and lowered, one of the driving members is connected to the lifting member in a transmission manner, and the air outlet end of the lifting member is connected to a suction member;

[0008] A heating element is arranged at the top of the bottom plate, the heating element is slidably connected to the top of the bottom plate, the lifting element is arranged corresponding to the heating element, and the lifting element blocks the heating element;

[0009] The anti-deformation member is arranged inside the heating member. The anti-deformation member is rotationally connected to the heating member through the lifting member. A gear is detachably arranged inside the anti-deformation member, and the gear is adapted to the anti-deformation member. The air inlet end of the lifting member is correspondingly arranged with the top end of the gear.

[0010] Preferably, the lifting member includes a lifting rod penetrating through the top end of the support frame. The driving member is in transmission connection with the lifting rod. A round plate penetrates through the bottom of the lifting rod, and the lifting rod is slidably connected to the round plate. A sealing ring is fixedly connected to the bottom end of the round plate, and the sealing ring seals the heating member. A transmission member is arranged inside the sealing ring. The bottom of the lifting rod is fixedly connected to the transmission member, and the lifting rod is in transmission connection with the anti-deformation member through the transmission member.

[0011] Preferably, the heating member includes a pillar slidably connected to the top end of the bottom plate. The top end of the pillar is fixedly connected to a heating box. The top end of the heating box is open, and a sealing groove is opened at the top end of the heating box. The sealing ring is located in the sealing groove and is adapted to the sealing groove. A plurality of heating tubes are fixedly connected to the inner wall of the heating box. The anti-deformation member is rotationally connected to the inner wall of the bottom end of the heating box.

[0012] Preferably, a receiving groove is opened at the inner wall of the bottom end of the heating box. The anti-deformation member includes a rotating rod arranged in the receiving groove. The rotating rod is rotationally connected to the heating box. The top end of the rotating rod is fixedly connected to an anti-deformation box. The top end of the anti-deformation box is open, and a plurality of convex teeth are fixedly connected to the inner side wall of the anti-deformation box. The gear is limited by the plurality of convex teeth.

[0013] Preferably, the transmission member includes a transmission plate fixedly connected to the bottom of the lifting rod. A plurality of transmission rods are fixedly connected to the bottom end of the transmission plate. A transmission groove is opened at the top end of the anti-deformation box. A plurality of transmission teeth are fixedly connected to the bottom end of the transmission groove. The top end of the transmission tooth is an inclined surface, and the transmission rod abuts against the side with a higher height of the transmission tooth.

[0014] Preferably, a first connecting plate is fixedly connected to the bottom ends of the plurality of pillars. The first connecting plate is fixedly connected to a second connecting plate through a short plate. The bottom ends of the first connecting plate and the second connecting plate are both slidably connected to the top end of the bottom plate. The top end of the second connecting plate is fixedly connected to a storage box through a short rod. The storage box is correspondingly arranged with the gear. A driving cylinder is fixedly connected to the top end of the bottom plate. The movable end of the driving cylinder is fixedly connected to the first connecting plate.

[0015] Preferably, the driving member includes a driving plate rotationally connected to the top end of the support frame. There are a plurality of driving plates. The driving plate is in transmission connection with the lifting rod. A driving motor is fixedly connected to the top end of the support frame. The output end of the driving motor is in transmission connection with the plurality of driving plates through a transmission belt.

[0016] Preferably, a square rod is fixedly connected to the top end of the lifting rod. The square rod penetrates through the driving plate, and the square rod is slidably connected to the driving plate. The driving plate rotates and lifts the lifting rod through the square rod.

[0017] Preferably, a thread is fixedly connected to the outer side wall of the lifting rod. The lifting rod is rotatably connected to the support frame through the thread. When the lifting rod moves up and down, the thread is located inside the support frame. When the anti-deformation member rotates, the thread is located outside the support frame.

[0018] Preferably, the air extraction member includes an air extractor fixedly connected to the support frame. A suction cup is fixedly connected to the bottom end of the lifting rod. The suction cup is correspondingly arranged with the top end of the gear. An air flow channel is formed in the lifting rod and the square rod. The air extractor is communicated with the suction cup through the air flow channel.

[0019] The present invention discloses the following technical effects:

[0020] 1. By arranging a plurality of driving members, the plurality of driving members move synchronously, and can simultaneously perform heat treatment on a plurality of gears, so as to meet the needs of industrial production and improve the processing efficiency.

[0021] 2. During heat treatment, the gear is manually placed into the anti-deformation member. The heating member is blocked by the lifting member, and the gear is heated by the heating member. After heating is completed, under the action of the air extraction member, the high-temperature gear does not need to be taken out manually, and only needs to be moved out of the anti-deformation member by the air extraction member, and the extraction efficiency is improved in this process.

[0022] 3. The lifting member and the driving member cooperate. When the lifting member descends, it blocks the heating member. After the blocking is completed, when the lifting member continues to descend to a certain position, the lifting member drives the anti-deformation member to rotate, so that the heating member heats the gear in the anti-deformation member more evenly. Description of the Drawings

[0023] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the embodiments. Obviously, the following described drawings are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0024] Figure 1 Is a three-dimensional view of the gear in the heating state;

[0025] Figure 2 Is Figure 1 The partial enlarged view of A in;

[0026] Figure 3 Stereogram of the state where the gear is taken out;

[0027] Figure 4 is Figure 3 Partial enlarged view of position B in

[0028] Figure 5 Exploded view of the connection relationship between the extraction part and the heating part;

[0029] Figure 6 is Figure 5 Exploded view of removing the plugging plate in

[0030] Figure 7 is Figure 6 Front view of

[0031] Figure 8 Stereogram of the connection relationship between the anti-deformation box and the gear;

[0032] Figure 9 Structural schematic diagram of the connection relationship between the limit plate and the lifting rod;

[0033] Among them, 1 - bottom plate, 2 - support frame, 3 - gear, 4 - lifting rod, 5 - circular plate, 6 - plugging ring, 7 - pillar, 8 - heating box, 9 - plugging groove, 10 - heating pipe, 11 - accommodating groove, 12 - rotating rod, 13 - anti-deformation box, 14 - convex teeth, 15 - transmission plate, 16 - transmission rod, 17 - transmission groove, 18 - transmission teeth, 19 - first connecting plate, 20 - short plate, 21 - second connecting plate, 22 - storage box, 23 - driving cylinder, 24 - driving plate, 25 - driving motor, 26 - transmission belt, 27 - square rod, 28 - air extractor, 29 - suction cup, 30 - limit box, 31 - spring, 32 - limit plate, 33 - limit groove. Specific embodiments

[0034] 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 making creative efforts shall fall within the protection scope of the present invention.

[0035] To make the above objects, features, and advantages of the present invention more obvious and understandable, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0036] Refer to Figures 1-9The present invention provides a pad mold for preventing workpieces from being deformed during heat treatment, comprising a base plate 1 and a support frame 2 fixed on the top of the base plate 1, and also comprising a driving member, which is provided with a plurality of driving members, and the plurality of driving members move synchronously, and the plurality of driving members are arranged at the top of the support frame 2, and the driving members are rotatably connected to the support frame 2; a lifting member, which is arranged on the support frame 2, and the lifting member can be raised and lowered, and a driving member is transmission-connected to a lifting member, and an exhaust member is connected to an air outlet end of the lifting member; a heating member, which is arranged at the top of the base plate 1, and the heating member is slidably connected to the top of the base plate 1, and the lifting member and the heating member are correspondingly arranged, and the lifting member blocks the heating member; an anti-deformation member, which is arranged in the heating member, and the anti-deformation member is rotatably connected to the heating member through the lifting member, and a gear 3 is detachably provided in the anti-deformation member, and the gear 3 is adapted to the anti-deformation member, and an air inlet end of the lifting member is correspondingly arranged to the top of the gear 3.

[0037] When it is necessary to perform heat treatment on the gear 3, the gear 3 is manually placed in the anti-deformation part, and then the driving part is started. The driving part drives the lifting part to rotate and descend. When the lifting part descends to a certain position, part of the structure of the lifting part blocks the heating part, and the other part of the structure of the lifting part continues to descend. When the lifting part contacts the anti-deformation part, the lifting part drives the anti-deformation part to rotate, and then the heating part is started. The gear 3 is heat treated by providing high temperature through the heating part. After the heat treatment of the gear 3 is completed, the exhaust part is started to exhaust air in the heating part. The top of the gear 3 is adsorbed on the exhaust part, and a part of the gear 3 leaves the anti-deformation part. The driving part rotates in the opposite direction to drive the lifting part to flip. After the gear 3 drives the anti-deformation part to rotate for a period of time, the gear 3 leaves the anti-deformation part, and the lifting part continues to rise, driving the part blocked by the heating part to rise, so that the lifting part releases the blockage of the heating part, and then the heating part leaves under the gear 3. After the gear 3 is collected, the heating part returns to the initial position to continue the heat treatment.

[0038] Further optimization scheme, the lifting member includes a lifting rod 4 that passes through the top of the support frame 2, the driving member is connected to the lifting rod 4 in a transmission manner, a circular plate 5 passes through the bottom of the lifting rod 4, the lifting rod 4 is slidably connected to the circular plate 5, a blocking ring 6 is fixedly connected to the bottom of the circular plate 5, the blocking ring 6 blocks the heating element, a transmission member is arranged inside the blocking ring 6, the bottom of the lifting rod 4 is fixedly connected to the transmission member, and the lifting rod 4 is connected to the anti-deformation member in a transmission manner through the transmission member. The lifting rod 4 can rotate relative to the support frame 2, and can also be raised and lowered relative to the support frame 2, thereby realizing the lifting and lowering of the circular plate 5. During the descent of the lifting rod 4, the circular plate 5 and the blocking ring 6 follow the lifting rod 4 to descend. When the blocking ring 6 is located in the heating element, the blocking ring 6 stops descending, while the transmission member in the blocking ring 6 continues to descend. When the transmission member contacts the anti-deformation member, the transmission member stops descending, and the rotation of the transmission member drives the rotation of the anti-deformation member.

[0039] For a further optimized solution, the heating element includes a support column 7 slidably connected to the top end of the bottom plate 1. A heating box 8 is fixedly connected to the top end of the support column 7. The top end of the heating box 8 is open, and a sealing groove 9 is formed at the top end of the heating box 8. The sealing ring 6 is located in the sealing groove 9 and is adapted to the sealing groove 9. A plurality of heating tubes 10 are fixedly connected to the inner wall of the heating box 8. The anti-deformation member is rotatably connected to the inner wall of the bottom end of the heating box 8. The gear 3 is placed into the anti-deformation member from the open top end of the heating box 8. During the downward movement of the lifting rod 4, the sealing ring 6 is located in the sealing groove 9 and the sealing ring 6 stops moving. The sealing ring 6 cooperates with the sealing groove 9 to form a relatively enclosed space in the heating box 8. By heating this space, heat treatment of the gear 3 can be achieved.

[0040] In one embodiment of the present invention, the heating tubes 10 are located between the inner wall of the heating box 8 and the anti-deformation member, and the heating tubes 10 preferably use electric heating.

[0041] For a further optimized solution, a receiving groove 11 is formed at the inner wall of the bottom end of the heating box 8. The anti-deformation member includes a rotating rod 12 arranged in the receiving groove 11. The rotating rod 12 is rotatably connected to the heating box 8. An anti-deformation box 13 is fixedly connected to the top end of the rotating rod 12. The top end of the anti-deformation box 13 is open, and a plurality of convex teeth 14 are fixedly connected to the inner side wall of the anti-deformation box 13. The gear 3 is limited by the plurality of convex teeth 14. The arrangement of the plurality of convex teeth 14 is adapted to the gear 3, so that the gear 3 is installed in the anti-deformation box 13. The multiple convex teeth 14 limit the gear 3. When heat treatment is performed on the gear 3, the anti-deformation box 13 and the convex teeth 14 prevent the gear 3 from deforming, thereby improving the production quality of the gear 3.

[0042] In one embodiment of the present invention, since the rotating rod 12 is rotatably connected to the receiving groove 11, the anti-deformation box 13 can be replaced according to the shape of the gear 3, and the replacement is convenient, which improves the applicable range and replacement efficiency of the device.

[0043] For a further optimized solution, the transmission member includes a transmission plate 15 fixedly connected to the bottom of the lifting rod 4. A plurality of transmission rods 16 are fixedly connected to the bottom end of the transmission plate 15. A transmission groove 17 is formed at the top end of the anti-deformation box 13. A plurality of transmission teeth 18 are fixedly connected to the bottom end of the transmission groove 17. The top end of the transmission teeth 18 is an inclined surface, and the transmission rod 16 abuts against the higher side of the transmission teeth 18. The transmission teeth 18 have an inclined surface. When the transmission rod 16 contacts the bottom of the transmission groove 17, at this time, the lifting rod 4 should only have a rotational movement and no downward movement. The transmission rod 16 pushes the higher side of the transmission teeth 18, so that the anti-deformation box 13 drives the gear 3 to rotate, thereby improving the heating effect on the gear 3. When the gear 3 needs to be taken out, the transmission rod 16 rotates in the reverse direction. At this time, the lifting rod 4 rotates and moves upward. Due to the existence of the inclined surface, the transmission rod 16 can easily leave the transmission groove 17.

[0044] In one embodiment of the present invention, the top of the support frame 2 is fixedly connected to a limit box 30, and a limit plate 32 is fixedly connected to the limit box 30 via a spring 31. The bottom end of the limit plate 32 is an inclined surface, and a limit slot 33 is provided on the side wall of the lifting rod 4. The limit plate 32 is arranged corresponding to the limit slot 33, and the limit plate 32 limits the lifting rod 4 via the limit slot 33. When the transmission rod 16 contacts the bottom of the transmission slot 17, the limit plate 32 is located in the limit slot 33, and the limit plate 32 prevents the lifting rod 4 from continuing to descend, so that the transmission rod 16 drives the anti-deformation box 13 to rotate. When the lifting rod 4 rises, under the action of the inclined surface and the spring 31, the limit plate 32 shrinks so that it does not affect the rise of the lifting rod 4.

[0045] Further optimization scheme, the bottom ends of several pillars 7 are fixedly connected with a first connecting plate 19, and the first connecting plate 19 is fixedly connected with a second connecting plate 21 through a short plate 20. The bottom ends of the first connecting plate 19 and the second connecting plate 21 are both slidably connected to the top end of the bottom plate 1, and the top end of the second connecting plate 21 is fixedly connected with a storage box 22 through a short rod. The storage box 22 is arranged corresponding to the gear 3, and the top end of the bottom plate 1 is fixedly connected with a driving cylinder 23, and the movable end of the driving cylinder 23 is fixedly connected with the first connecting plate 19. The first connecting plate 19 and the second connecting plate 21 move synchronously through the driving cylinder 23. When the gear 3 is heat-treated, the first connecting plate 19 drives the heating element to be located below the lifting element. When the gear 3 needs to be taken out, the second connecting plate 21 drives the storage box 22 to be located below the gear 3, and then the vacuum element stops vacuuming, so that the gear 3 falls into the storage box 22. This arrangement is convenient for taking out the gear 3, and the safety of the taking out process is relatively high.

[0046] In one embodiment of the present invention, a slide groove is provided at the top of the bottom plate 1, a slider is slidably connected in the slide groove, and the top of the slider is fixedly connected to the first connecting plate 19 and the second connecting plate 21. By providing the slide groove and the slider, the first connecting plate 19 and the second connecting plate 21 are limited, thereby improving the stability of their movement.

[0047] In a further optimized solution, the driving member includes a driving plate 24 rotatably connected to the top of the support frame 2, a plurality of driving plates 24 are provided, the driving plate 24 is transmission-connected to the lifting rod 4, a driving motor 25 is fixed to the top of the support frame 2, and the output end of the driving motor 25 is transmission-connected to the plurality of driving plates 24 through a transmission belt 26. The driving plate 24 is rotationally connected to the top of the support frame 2, and the driving motor 25 works, driving the support frame 2 to rotate, driving the driving plate 24 to rotate, and then driving the lifting rod 4 to rotate.

[0048] In a further optimized solution, a square rod 27 is fixed to the top of the lifting rod 4, the square rod 27 penetrates the driving plate 24, and the square rod 27 is slidably connected to the driving plate 24, and the driving plate 24 rotates and lifts the lifting rod 4 through the square rod 27. The arrangement of the square rod 27 enables the lifting rod 4 to rotate relative to the support frame 2 and to lift relative to the support frame 2, thereby completing the heating and removal of the gear 3.

[0049] For a further optimized solution, a thread is fixedly connected to the outer side wall of the lifting rod 4. The lifting rod 4 is rotationally connected to the support frame 2 through the thread. When the lifting rod 4 is lifted or lowered, the thread is located inside the support frame 2. When the anti-deformation member rotates, the thread is located outside the support frame 2. When the lifting rod 4 needs to be lifted or lowered, due to the existence of the thread, the lifting rod 4 is convenient for lifting and lowering. When the anti-deformation box 13 rotates, at this time the thread just leaves the support frame 2. In the absence of the thread, the lifting rod 4 can only rotate and cannot be lifted or lowered. At the same time, the lifting rod 4 is limited by the limiting plate 32. When the lifting rod 4 flips, the thread can re-enter the support frame 2, thereby realizing the lifting of the lifting rod 4.

[0050] For a further optimized solution, the air extraction member includes an air extractor 28 fixedly connected to the support frame 2. A suction cup 29 is fixedly connected to the bottom end of the lifting rod 4. The suction cup 29 is correspondingly arranged with the top end of the gear 3. Air flow channels are formed in the lifting rod 4 and the square rod 27. The air extractor 28 is communicated with the suction cup 29 through the air flow channel. The air extractor 28 and the suction cup 29 cooperate. On the one hand, the gear 3 is taken out, and on the other hand, when the gear 3 is taken out, the air extractor 28 can extract the high-temperature air in the heating box 8, thereby accelerating the cooling of the gear 3 to facilitate the subsequent processing of the gear 3.

[0051] In an embodiment of the present invention, a one-way valve (not shown in the figure) is fixed in the air flow channel. The setting of the one-way valve prevents excessive hot air from being led out of the air flow channel when the heating box 8 is heating.

[0052] Working principle:

[0053] When heat treatment needs to be performed on the gear 3, an operator places the gear 3 into the anti-deformation box 13, and then starts the driving motor 25. The driving motor 25 drives the driving plate 24 to rotate through the transmission belt 26. The driving plate 24 drives the square rod 27 to rotate. The square rod 27 drives the lifting rod 4 to rotate. The lifting rod 4 descends. When the bottom end of the sealing ring 6 contacts the bottom of the sealing groove 9, the circular plate 5 stops descending. The lifting rod 4 drives the transmission plate 15 and the transmission rod 16 to continue descending. When the transmission rod 16 contacts the bottom of the transmission groove 17, the thread on the lifting rod 4 leaves the support frame 2. At the same time, the limiting plate 32 limits the lifting rod 4, so that the lifting rod 4 can only rotate. The transmission rod 16 drives the anti-deformation box 13 to rotate. The heating tube 10 is started to perform heat treatment on the gear 3. After the heat treatment is completed, the air extractor 28 works. The top end of the gear 3 is adsorbed on the suction cup 29. The driving motor 25 rotates in reverse. The thread on the lifting rod 4 enters the support frame 2, so that the lifting rod 4 rises. When the lifting rod 4 rises to a certain height, the transmission plate 15 drives the circular plate 5 to rise, and the sealing ring 6 leaves the sealing groove 9. Then the driving cylinder 23 works to send the storage box 22 below the gear 3. The air extractor 28 stops extracting air, and the gear 3 falls into the storage box 22.

[0054] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the present invention.

[0055] The embodiments described above are only descriptions of the preferred embodiments of the present invention, and do not limit the scope of the present invention. Without departing from the design spirit of the present invention, various deformations and improvements made by those of ordinary skill in the art to the technical solutions of the present invention shall fall within the protection scope determined by the claims of the present invention.

Claims

1. A pad die for preventing a workpiece from being deformed during heat treatment, comprising a base plate (1) and a support frame (2) fixed to the top of the base plate (1). Features: Also includes, There are several driving members, and the driving members move synchronously. The driving members are arranged on the support frame. (2) a top end, and the driving member is rotatably connected to the support frame (2); A lifting member is arranged on the support frame (2), the lifting member can be raised and lowered, a driving member is drivingly connected to the lifting member, and an air outlet end of the lifting member is connected to an air suction member; A heating element is arranged at the top of the bottom plate (1), the heating element is slidably connected to the top of the bottom plate (1), the lifting element is arranged corresponding to the heating element, and the lifting element blocks the heating element; An anti-deformation component is arranged in the heating component, the anti-deformation component is rotatably connected to the heating component via the lifting component, a gear (3) is detachably arranged in the anti-deformation component, the gear (3) is adapted to the anti-deformation component, and an air inlet end of the lifting component is arranged correspondingly to a top end of the gear (3); The lifting member comprises a lifting rod (4) passing through the top of the support frame (2); the driving member is transmission-connected to the lifting rod (4); a circular plate (5) passes through the bottom of the lifting rod (4); the lifting rod (4) is slidingly connected to the circular plate (5); a sealing ring (6) is fixedly connected to the bottom end of the circular plate (5); the sealing ring (6) seals the heating element; a transmission member is arranged inside the sealing ring (6); the bottom of the lifting rod (4) is fixedly connected to the transmission member; the lifting rod (4) is transmission-connected to the anti-deformation member via the transmission member; The driving member comprises a driving plate (24) rotatably connected to the top of the support frame (2), a plurality of the driving plates (24) are provided, the driving plate (24) is transmission-connected to the lifting rod (4), a driving motor (25) is fixedly connected to the top of the support frame (2), and an output end of the driving motor (25) is transmission-connected to the plurality of the driving plates (24) via a transmission belt (26); A square rod (27) is fixedly connected to the top end of the lifting rod (4), the square rod (27) passes through the driving plate (24), and the square rod (27) is slidably connected to the driving plate (24), and the driving plate (24) causes the lifting rod (4) to rotate and rise and fall through the square rod (27); The vacuum component includes a vacuum pump (28) fixedly connected to the support frame (2); a suction cup (29) is fixedly connected to the bottom end of the lifting rod (4); the suction cup (29) is arranged corresponding to the top end of the gear (3); an air flow channel is opened in the lifting rod (4) and the square rod (27); the vacuum pump (28) is connected to the suction cup (29) through the air flow channel.

2. The dolly mold for preventing workpiece deformation during heat treatment according to claim 1, Features: The heating element includes a support pillar (7) slidably connected to the top end of the bottom plate (1). The top end of the support pillar (7) is fixedly connected with a heating box (8). The top end of the heating box (8) is open, and a sealing groove (9) is formed in the top end of the heating box (8). The sealing ring (6) is located in the sealing groove (9) and is adapted to the sealing groove (9). A plurality of heating tubes (10) are fixedly connected to the inner wall of the heating box (8). The anti-deformation member is rotatably connected to the inner wall of the bottom end of the heating box (8).

3. The pad die for preventing workpiece heat treatment deformation according to claim 2, characterized in that: a receiving groove (11) is formed in the inner wall of the bottom end of the heating box (8). The anti-deformation member includes a rotating rod (12) disposed in the receiving groove (11). The rotating rod (12) is rotatably connected to the heating box (8). The top end of the rotating rod (12) is fixedly connected with an anti-deformation box (13). The top end of the anti-deformation box (13) is open, and a plurality of convex teeth (14) are fixedly connected to the inner side wall of the anti-deformation box (13). The gear (3) is limited by the plurality of convex teeth (14).

4. The pad die for preventing workpiece heat treatment deformation according to claim 3, characterized in that: the transmission member includes a transmission plate (15) fixedly connected to the bottom of the lifting rod (4). A plurality of transmission rods (16) are fixedly connected to the bottom end of the transmission plate (15). A transmission groove (17) is formed in the top end of the anti-deformation box (13). A plurality of transmission teeth (18) are fixedly connected to the bottom end of the transmission groove (17). The top end of the transmission teeth (18) is an inclined surface, and the transmission rod (16) abuts against the higher side of the transmission teeth (18).

5. The pad die for preventing workpiece heat treatment deformation according to claim 2, characterized in that: a first connecting plate (19) is fixedly connected to the bottom ends of the plurality of support pillars (7). The first connecting plate (19) is fixedly connected with a second connecting plate (21) through a short plate (20). The bottom ends of the first connecting plate (19) and the second connecting plate (21) are both slidably connected to the top end of the bottom plate (1). The top end of the second connecting plate (21) is fixedly connected with a storage box (22) through a short rod. The storage box (22) is arranged corresponding to the gear (3). A driving cylinder (23) is fixedly connected to the top end of the bottom plate (1). The movable end of the driving cylinder (23) is fixedly connected to the first connecting plate (19).

6. The pad die for preventing workpiece heat treatment deformation according to claim 1, characterized in that: a thread is fixedly connected to the outer side wall of the lifting rod (4). The lifting rod (4) is rotatably connected to the support frame (2) through the thread. When the lifting rod (4) moves up and down, the thread is located inside the support frame (2). When the anti-deformation member rotates, the thread is located outside the support frame (2).

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