Quenching device for forming forging machining of automobile forged hub

Abstract

The invention discloses a quenching device for forming and forging an automobile forged hub, and relates to the technical field of material science and engineering, the quenching device comprises a water tank, the right side of the water tank is fixedly provided with a fixing frame, the left side of the water tank is provided with a water inlet, and the left side of the water tank is provided with a water outlet; a clamping device, a protection device and a fixing device are arranged in the water tank, water is added into the water tank through a water inlet, waste water can be discharged through a water outlet, a hub is placed at the top of a placing disc, the hub is clamped through a clamping plate, when the clamping force is too large, the clamping plate can be prevented from clamping the hub, and the quenching process involves high temperature and quenching; when the hub is heated, the workpiece is possibly deformed, and the geometric shape of the hub can be kept through effective clamping and anti-clamping measures, so that the problem of dimensional tolerance caused by non-uniform local heating or forced deformation is reduced.

Description

Technical Field

[0001] The invention relates to the field of material science and engineering technology, in particular to a water quenching device for forming and forging of an automobile forged wheel hub. Background Art

[0002] The forged wheel hub is one of the most important parts in the automobile structure. Its main function is to support the weight of the vehicle and withstand the impact and load during driving. Forging is an effective process for manufacturing wheels. It applies high temperature and pressure to metal materials to cause plastic deformation to form the desired shape and performance. Forged wheels generally have better performance in terms of strength and toughness than cast wheels.

[0003] The patent with the patent announcement number CN209113953U relates to the field of materials science and engineering technology. The patent discloses a wheel hub automatic quenching device, which relates to the field of wheel hub technology. An automatic wheel hub watering device includes a processing box, the top of the front surface of the processing box is provided with an inlet and outlet, and the front surface of the processing box and the position corresponding to the inlet and outlet are provided with a movable door through a hinge. The top of the processing box is fixedly connected with a motor 1, and the output end of the motor 1 passes through the processing box and extends to the inside of the processing box, where a hot air blower is fixedly connected. The inside of the processing box is located at the bottom of the hot air blower and is fixedly connected with a heating wire. The automatic wheel hub quenching device can heat the wheel hub by setting the cooperation of the motor 1, the hot air blower and the heating wire. By setting the cooperation of the motor 2, the threaded rod, the threaded sleeve and the moving rod, the threaded sleeve can drive the moving rod to move on the surface of the threaded rod when the threaded rod rotates, thereby driving the heating plate to move, so that the wheel hub quickly falls into the water storage barrel after heating, achieving the effect of automatic quenching.

[0004] In the above patent, the wheel hub is quickly dropped into the water storage barrel after being heated to achieve the effect of automatic quenching. However, the current measuring equipment has the following problems: when the wheel hub is rapidly cooled in water, the volume change caused by the sudden drop in temperature may cause deformation. If the wheel hub is not clamped, it may float freely in the water, resulting in uneven cooling. This uneven cooling will cause local shrinkage, thereby causing deformation of the wheel hub and affecting its subsequent assembly and performance. Summary of the invention

[0005] In view of the deficiencies in the prior art, the present invention provides a water quenching device for automobile forged wheel hub forming forging processing, which solves the problems raised in the above-mentioned background technology.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solutions: a quenching device for automobile forged wheel hub forming forging processing, comprising a water tank, a fixing frame is fixedly installed on the right side of the water tank, a water inlet is arranged on the left side of the water tank, a drain is arranged on the left side of the water tank, water is added into the water tank through the water inlet, and waste water can be discharged through the drain, and a clamping device, a protective device and a fixing device are arranged inside the water tank; wherein, the clamping device comprises an electric push rod 1, a placement plate, an electric push rod 2, a connecting block, a sliding block, an L-shaped rod, a traction block, a push plate, a clamping plate, a sliding rod, a limit block and a cylinder, the fixed end of the electric push rod 1 is fixedly installed on the inner wall of the fixing frame, the placement plate is fixedly installed on the output end of the electric push rod 1, and the fixed end of the electric push rod 2 is fixedly installed The wheel hub is clamped by the second electric push rod in cooperation with the connecting block, the sliding block, the traction block and the clamping plate. The sliding rod is slidably mounted on the right side of the push plate, the limit block is slidably mounted on the right side of the push plate, and the cylinder is fixedly mounted on the inner wall of the placing disk. When the clamping force is too large, the clamping plate will be subjected to force and move to the right to cooperate with the sliding rod and the limit block to prevent the push plate from moving.

[0007] According to the above technical solution, a limiting groove is provided on the top of the placing plate, and the limiting groove prevents the push plate from moving. A No. 1 spring is provided between the clamping plate and the push plate, and the clamping plate is driven to reset by the No. 1 spring. A No. 2 spring is provided between the sliding rod and the push plate, and the sliding rod is driven to reset by the No. 2 spring. A No. 3 spring is provided between the limit block and the push plate, and the limit block is driven to reset by the No. 3 spring.

[0008] According to the above technical solution, the side of the sliding rod close to the clamping plate is set as a slope, the top of the limit block is set as a slope, and the bottom of the limit block is set as a slope. When the clamping plate moves, it will contact the slope of the sliding rod, causing the sliding rod to move forward. When the sliding rod moves, it will contact the slope of the limit block, causing the limit block to move downward and insert into the limit groove.

[0009] According to the above technical solution, the protective device includes a hollow block, a rotating rod, a connecting rod and a protective plate. The hollow block is fixedly installed on the circumferential surface of the cylinder, the rotating rod is rotatably installed on the inner wall of the water tank, the connecting rod is fixedly installed on the inner wall of the rotating rod, and the protective plate is fixedly installed on the rear side of the connecting rod. A No. 1 torsion spring is arranged between the rotating rod and the water tank. The rotating rod is rotated downward by contacting the rotating rod through the movement of the placement plate. The rotation of the rotating rod drives the connecting rod to rotate, and the rotation of the connecting rod causes the protective plate to move.

[0010] According to the above technical solution, the protective device also includes a slide rail, a pulley, a No. 4 spring and a rotating shaft. The slide rail is fixedly installed on the rear side of the water tank, the pulley is fixedly installed on the front side of the protective plate, the pulley is in contact with the slide rail, and the rotating shaft is fixedly passed through the inner and outer walls of the rotating rod. A No. 4 spring is arranged between the water tank and the rotating shaft. When the rotating rod rotates, the rotating shaft is driven to rotate. The rotation of the rotating shaft will pull the No. 4 spring and reset it through the No. 4 spring. The protective plate will eventually cover the top of the wheel hub.

[0011] According to the above technical solution, the protective device also includes a rotating cylinder and a stirring blade. The rotating cylinder is rotatably installed on the inner wall of the water tank, and the stirring blade is fixedly installed on the circumferential surface of the rotating cylinder. A spiral rod is arranged on the top of the rotating cylinder, and the spiral rod is threadedly connected to the cylinder. The spiral rod is rotated by the movement of the cylinder, and the rotation of the spiral rod drives the rotating cylinder to rotate, and the rotation of the rotating cylinder drives the stirring blade to rotate.

[0012] According to the above technical solution, the fixing device includes a fixed block, an insert block, a round rod and a No. 5 spring. The fixed block is fixedly penetrated through the inner and outer walls of the water tank, the insert block is slidably installed on the inner wall of the fixed block, one side of the round rod is fixedly installed on the right side of the insert block, and the other side of the round rod slides through the inner and outer walls of the fixed block. The No. 5 spring is arranged between the insert block and the fixed block, and the left side of the insert block is arranged as an inclined surface. The insert block moves toward the inner wall of the fixed block through the movement of the hollow block and the contact with the inclined surface of the insert block. The movement of the insert block drives the movement of the round rod and compresses the No. 5 spring at the same time. When the hollow block and the insert block are in the same horizontal plane, the No. 5 spring is released and drives the insert block to be inserted into the hollow block. At this time, the position of the cylinder is fixed, that is, the position of the placement plate is fixed.

[0013] According to the above technical scheme, the fixing device also includes a brake rod, a rotating button, a clamping gear, a receiving tube and a rotating block. The brake rod is fixedly installed on the right side of the round rod, the rotating button is rotatably installed on the inner wall of the fixed block, a No. 2 torsion spring is arranged between the rotating button and the fixed block, the receiving tube is fixedly installed on the right side of the fixed block, the circumferential surface of the receiving tube is provided with a spiral groove, the rotating block is rotatably installed on the circumferential surface of the receiving tube, the rotating block is threadedly connected with the spiral groove, and the clamping gear is fixedly installed on the circumferential surface of the rotating block. After quenching is completed, the clamping gear is disengaged from the restriction by rotating the rotating button. At this time, the rotating block can be rotated. Because the spiral groove provided in the receiving tube makes the rotating block move to the right after rotation, the movement of the rotating block will contact the brake rod to make the brake rod move to the right, the movement of the brake rod drives the round rod to move, and the movement of the round rod drives the insertion block to move. At this time, the insertion block is disengaged from the hollow block, and the placement disk can be reset by an electric push rod.

[0014] The present invention provides a water quenching device for automobile forged wheel hub forming forging processing. It has the following beneficial effects: (1) The invention, by setting a clamping device, adds water into the water tank through the water inlet, and the waste water can be discharged through the drain outlet. The wheel hub is placed on the top of the placement plate, and the wheel hub is clamped by the electric push rod 2 in cooperation with the connecting block, sliding block, L-shaped rod, traction block, push plate and clamping plate. When the clamping force is too large, the clamping plate will be forced to move to the right, and the sliding rod, limit block and limit groove make it impossible for the push plate to move, that is, to prevent the clamping plate from clamping the wheel hub. The quenching process involves high temperature and rapid cooling, which may cause deformation of the workpiece. Through effective clamping and anti-clamping measures, the geometric shape of the wheel hub can be maintained, and the dimensional tolerance problem caused by uneven local heating or forced deformation can be reduced. After the wheel hub is clamped, the placement plate is driven to move by the output end of the electric push rod 1. The movement of the placement plate drives the wheel hub to move and drives the cylinder to move at the same time until the wheel hub contacts the water to achieve quenching.

[0015] (2) The invention, through the setting of the protective device, moves the protective plate by moving the placement plate in coordination with the rotating rod, connecting rod, protective plate and pulley. When the rotating rod rotates, it cooperates with the rotating shaft and the No. 4 spring to make the protective plate finally cover the top of the wheel hub. During quenching, the high temperature of the wheel hub causes the water to boil or even burn. The covering of the protective plate can prevent the boiling water from overflowing and injuring the operator. The stirring plate is driven by the spiral rod to rotate. During the quenching process, the metal contacts the coolant to generate steam, causing bubbles to form on the water surface, thereby temporarily losing contact with the metal surface. Through stirring, the formation and accumulation of bubbles can be reduced, ensuring that the metal surface always maintains good contact with the coolant, thereby improving the cooling efficiency.

[0016] (3) The invention, through the setting of the fixing device, fixes the position of the cylinder by moving the hollow block in coordination with the plug block, round rod and No. 5 spring, that is, the position of the placement disk is fixed. During the quenching process, the wheel hub must be completely immersed in water to ensure uniform cooling. If the wheel hub is not well fixed during the movement or immersion process, its position may change, thereby affecting the uniformity and effect of cooling. After the quenching is completed, the plug block is disengaged from the hollow block by turning the rotating knob in coordination with the card gear, receiving tube, spiral groove, rotating block, brake rod and round rod. At this time, the placement disk can be reset by an electric push rod. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the internal structure of the water tank of the present invention; Figure 3 For the present invention Figure 2 A schematic diagram of the structure enlargement of part A; Figure 4 It is a schematic diagram of the position structure of the electric push rod 2 and the sliding block of the present invention; Figure 5 It is a schematic diagram of the traction block and structure of the present invention; Figure 6 It is a schematic diagram of a partial cross-sectional structure of the protective device of the present invention; Figure 7 It is a schematic diagram of a partial cross-sectional structure of the fixing device of the present invention; Figure 8 It is a schematic diagram of the position structure of the receiving tube and the rotating block of the present invention.

[0018] In the figure: 1. water tank; 2. fixing frame; 3. water inlet; 4. drain outlet; 10. electric push rod one; 11. placement plate; 12. electric push rod two; 13. connecting block; 14. sliding block; 15. L-shaped rod; 16. traction block; 17. push plate; 18. clamping plate; 19. sliding rod; 110. limit block; 111. cylinder; 20. hollow block; 21. rotating rod; 22. connecting rod; 23. protective plate; 24. slide rail; 25. pulley; 26. No. 4 spring; 27. rotating shaft; 28. rotating cylinder; 29. ​​stirring piece; 30. fixing block; 31. plug-in block; 32. round rod; 33. No. 5 spring; 34. brake rod; 35. rotating knob; 36. card gear; 37. receiving cylinder; 38. rotating block. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0020] See also Figure 1-Figure 5 An embodiment of the present invention is: a quenching device for automobile forged wheel hub forming forging processing, comprising a water tank 1, a fixing frame 2 is fixedly installed on the right side of the water tank 1, a water inlet 3 is arranged on the left side of the water tank 1, a drain port 4 is arranged on the left side of the water tank 1, water is added into the water tank 1 through the water inlet 3, and waste water can be discharged through the drain port 4, a clamping device is arranged inside the water tank 1, and the clamping device comprises an electric push rod 10, a placement plate 11, an electric push rod 2 12, a connecting block 13, a sliding block 14, an L-shaped rod 15, a traction block 16, a push plate 17, a clamping plate 18, a sliding rod 19, a limit block 110 and a cylinder 111, the fixed end of the electric push rod 10 is fixedly installed on the inner wall of the fixing frame 2, the placement plate 11 is fixedly installed on the output end of the electric push rod 10, and the fixed end of the electric push rod 2 12 is fixedly installed on the placement plate 11 The inner wall, the connecting block 13 is fixedly mounted on the output end of the electric push rod 12, the sliding block 14 is fixedly mounted on the top of the connecting block 13, one side of the L-shaped rod 15 is fixedly mounted on the bottom of the sliding block 14, the traction block 16 is rotatably mounted on the inner wall of the placement disk 11, and the other side of the L-shaped rod 15 is fixedly mounted on the bottom of the traction block 16. The push plate 17 is fixedly mounted on the top of the sliding block 14, the clamping plate 18 slides through the inner and outer walls of the push plate 17, the sliding rod 19 is slidably mounted on the right side of the push plate 17, the limit block 110 is slidably mounted on the right side of the push plate 17, and the cylinder 111 is fixedly mounted on the inner wall of the placement disk 11. The quenching process involves high temperature and rapid cooling, which may cause deformation of the workpiece. Through effective clamping and anti-pinching measures, it can help maintain the geometric shape of the wheel hub and reduce dimensional tolerance problems caused by uneven local heating or forced deformation.

[0021] A limiting groove is set on the top of the placement plate 11, and a No. 1 spring is set between the clamping plate 18 and the push plate 17, and the clamping plate 18 is reset by the No. 1 spring. A No. 2 spring is set between the sliding rod 19 and the push plate 17, and the sliding rod 19 is reset by the No. 2 spring. A No. 3 spring is set between the limit block 110 and the push plate 17, and the limit block 110 is reset by the No. 3 spring.

[0022] The side of the sliding rod 19 close to the clamping plate 18 is set as an inclined surface, so that the sliding rod 19 moves forward, the top of the limit block 110 is set as an inclined surface, so that the limit block 110 moves downward, and the bottom of the limit block 110 is set as an inclined surface, so that the limit block 110 disengages from the limit groove when resetting.

[0023] When the present embodiment is working, water is added into the water tank 1 through the water inlet 3, and the waste water can be discharged through the drain outlet 4. The wheel hub is placed on the top of the placement plate 11, and the output end of the electric push rod 12 is contracted to drive the connecting block 13 to move, and the connecting block 13 moves to drive the sliding block 14 to move, and the sliding block 14 moves to drive the L-shaped rod 15 to move, and the L-shaped rod 15 moves to drive the traction block 16 to rotate, and the rotation of the traction block 16 will drive the other three sliding blocks 14 to move, and the sliding block 14 moves to drive the push plate 17 to move, and the push plate 17 moves to drive the clamping plate 18 to move, and the clamping plate 18 moves to clamp the wheel hub. When the clamping force is too large, the clamping plate 18 will be forced to move to the right, and the movement of the clamping plate 18 will move with the sliding block 14. The inclined surface of the rod 19 contacts, so that the sliding rod 19 moves forward. The movement of the sliding rod 19 will contact the inclined surface of the limit block 110, so that the limit block 110 moves downward and is inserted into the limit groove. At this time, the push plate 17 cannot move, that is, to prevent the clamping plate 18 from clamping the wheel hub. The quenching process involves high temperature and rapid cooling, which may cause deformation of the workpiece. Through effective clamping and anti-pinching measures, it can help maintain the geometric shape of the wheel hub and reduce dimensional tolerance problems caused by uneven local heating or forced deformation. After the wheel hub is clamped, the output end of the electric push rod 10 drives the placement plate 11 to move. The movement of the placement plate 11 drives the wheel hub to move and drives the cylinder 111 to move at the same time until the wheel hub contacts the water to achieve quenching.

[0024] See also Figure 1-Figure 8 On the basis of the above embodiment, in another embodiment of the present invention, a protective device and a fixing device are arranged inside the water tank 1, and the protective device includes a hollow block 20, a rotating rod 21, a connecting rod 22 and a protective plate 23. The hollow block 20 is fixedly mounted on the circumferential surface of the cylinder 111, the rotating rod 21 is rotatably mounted on the inner wall of the water tank 1, the connecting rod 22 is fixedly mounted on the inner wall of the rotating rod 21, and the protective plate 23 is fixedly mounted on the rear side of the connecting rod 22. During quenching, the high temperature of the hub causes the water to boil or even burn. The covering of the protective plate 23 can prevent the boiling water from overflowing and injuring the operator. A No. 1 torsion spring is arranged between the rotating rod 21 and the water tank 1, and the rotating rod 21 is driven to reset by the arranged No. 1 torsion spring.

[0025] The protective device also includes a slide rail 24, a pulley 25, a No. 4 spring 26 and a rotating shaft 27. The slide rail 24 is fixedly installed on the rear side of the water tank 1, the pulley 25 is fixedly installed on the front side of the protective plate 23, the pulley 25 is in contact with the slide rail 24, and the rotating shaft 27 is fixedly passed through the inner and outer walls of the rotating rod 21, so that the protective plate 23 is finally covered above the wheel hub. A No. 4 spring 26 is arranged between the water tank 1 and the rotating shaft 27, and the rotating shaft 27 is reset by the arranged No. 4 spring 26.

[0026] The protective device also includes a rotating cylinder 28 and a stirring blade 29. The rotating cylinder 28 is rotatably installed on the inner wall of the water tank 1, and the stirring blade 29 is fixedly installed on the circumferential surface of the rotating cylinder 28. A spiral rod is arranged on the top of the rotating cylinder 28, and the spiral rod is threadedly connected to the cylinder 111. During the quenching process, steam is generated when the metal contacts the coolant, so that bubbles are formed on the water surface, thereby temporarily losing contact with the metal surface. By stirring, the formation and accumulation of bubbles can be reduced, ensuring that the metal surface always maintains good contact with the coolant, thereby improving the cooling efficiency.

[0027] The fixing device includes a fixing block 30, an insert block 31, a round rod 32 and a No. 5 spring 33. The fixing block 30 is fixedly penetrated through the inner and outer walls of the water tank 1, the insert block 31 is slidably installed on the inner wall of the fixing block 30, one side of the round rod 32 is fixedly installed on the right side of the insert block 31, and the other side of the round rod 32 slides through the inner and outer walls of the fixing block 30. The No. 5 spring 33 is arranged between the insert block 31 and the fixing block 30, and the insert block 31 is reset by the arranged No. 5 spring 33. The left side of the insert block 31 is arranged as an inclined surface. During the quenching process, the wheel hub must be completely immersed in water to ensure uniform cooling. If the wheel hub is not well fixed during the movement or immersion process, its position may change, thereby affecting the uniformity and effect of cooling.

[0028] The fixing device also includes a brake rod 34, a rotating button 35, a locking gear 36, a receiving tube 37 and a rotating block 38. The brake rod 34 is fixedly installed on the right side of the round rod 32, and the rotating button 35 is rotatably installed on the inner wall of the fixed block 30. A No. 2 torsion spring is arranged between the rotating button 35 and the fixed block 30, and the rotating button 35 is driven to reset by the arranged No. 2 torsion spring. The receiving tube 37 is fixedly installed on the right side of the fixed block 30, and the circumferential surface of the receiving tube 37 is provided with a spiral groove. The rotating block 38 is rotatably installed on the circumferential surface of the receiving tube 37. The rotating block 38 is threadedly connected with the spiral groove, and the locking gear 36 is fixedly installed on the circumferential surface of the rotating block 38, so that the insert block 31 is disengaged from the hollow block 20. At this time, the placement plate 11 can be reset by the electric push rod 10.

[0029] When the present embodiment is working, the placement plate 11 moves to drive the hollow block 20 to move, and the placement plate 11 moves to contact the rotating rod 21 so that the rotating rod 21 rotates downward, and the rotation of the rotating rod 21 drives the connecting rod 22 to rotate, and the rotation of the connecting rod 22 drives the protective plate 23 to move, and the movement of the protective plate 23 drives the pulley 25 to move, and the pulley 25 moves along the slide rail 24 to move the protective plate 23, and the rotation of the rotating rod 21 drives the rotating shaft 27 to rotate, and the rotation of the rotating shaft 27 will pull the No. 4 spring 26 and reset through the No. 4 spring 26, and the protective plate 23 will eventually cover the top of the wheel hub, and when quenching, the wheel hub High temperature makes water boil or even burn. The protection plate 23 can prevent boiling water from overflowing and injuring operators. When the placement plate 11 is reset, the rotating rod 21 is reset by the first torsion spring. The movement of the cylinder 111 causes the spiral rod to rotate. The rotation of the spiral rod drives the rotating cylinder 28 to rotate. The rotation of the rotating cylinder 28 drives the stirring blade 29 to rotate. During the quenching process, the metal contacts the coolant to generate steam, causing bubbles to form on the water surface, thereby temporarily losing contact with the metal surface. Stirring can reduce the formation and accumulation of bubbles, ensuring that the metal surface always maintains good contact with the coolant, thereby improving the cooling efficiency. The hollow block 20 moves and contacts the inclined surface of the insert block 31, so that the insert block 31 moves toward the inner wall of the fixed block 30. The movement of the insert block 31 drives the round rod 32 to move and compresses the No. 5 spring 33. When the hollow block 20 and the insert block 31 are at the same horizontal plane, the No. 5 spring 33 is released and drives the insert block 31 to be inserted into the hollow block 20. At this time, the position of the cylinder 111 is fixed, that is, the position of the placement plate 11 is fixed. During the quenching process, the wheel hub must be completely immersed in water to ensure uniform cooling. If the wheel hub is not well fixed during the movement or immersion process, it may The rotation of the rotating knob 35 may cause the position of the rotating knob 35 to change, thereby affecting the uniformity and effect of the cooling. After the quenching is completed, the locking gear 36 is released from the restriction by rotating the rotating knob 35. At this time, the rotating block 38 can be rotated. The spiral groove provided in the receiving tube 37 allows the rotating block 38 to move to the right after the rotation. The movement of the rotating block 38 will contact the brake rod 34, causing the brake rod 34 to move to the right. The movement of the brake rod 34 drives the round rod 32 to move, and the movement of the round rod 32 drives the insertion block 31 to move. At this time, the insertion block 31 is released from the hollow block 20. At this time, the placement plate 11 can be reset by the electric push rod 10.

[0030] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A quenching device for automobile forged wheel hub forming forging processing, comprising a water tank (1), characterized in that: A fixing frame (2) is fixedly mounted on the right side of the water tank (1), a water inlet (3) is provided on the left side of the water tank (1), a water outlet (4) is provided on the left side of the water tank (1), and a clamping device, a protective device and a fixing device are provided inside the water tank (1); The clamping device comprises an electric push rod 1 (10), a placement plate (11), an electric push rod 2 (12), a connecting block (13), a sliding block (14), an L-shaped rod (15), a traction block (16), a push plate (17), a clamping plate (18), a sliding rod (19), a limit block (110) and a cylinder (111); the fixed end of the electric push rod 1 (10) is fixedly mounted on the inner wall of the fixing frame (2); the placement plate (11) is fixedly mounted on the output end of the electric push rod 1 (10); the fixed end of the electric push rod 2 (12) is fixedly mounted on the inner wall of the placement plate (11); the connecting block (13) is fixedly mounted on the output end of the electric push rod 2 (12); The sliding block (14) is fixedly mounted on the top of the connecting block (13); one side of the L-shaped rod (15) is fixedly mounted on the bottom of the sliding block (14); the traction block (16) is rotatably mounted on the inner wall of the placement plate (11); the other side of the L-shaped rod (15) is fixedly mounted on the bottom of the traction block (16); the push plate (17) is fixedly mounted on the top of the sliding block (14); the clamping plate (18) slides through the inner and outer walls of the push plate (17); the sliding rod (19) is slidably mounted on the right side of the push plate (17); the limit block (110) is slidably mounted on the right side of the push plate (17); and the cylinder (111) is fixedly mounted on the inner wall of the placement plate (11).

2. The water quenching device for automobile forged wheel hub forming forging according to claim 1 is characterized in that: A limiting groove is provided on the top of the placement plate (11), a No. 1 spring is provided between the clamping plate (18) and the push plate (17), a No. 2 spring is provided between the sliding rod (19) and the push plate (17), and a No. 3 spring is provided between the limiting block (110) and the push plate (17).

3. The water quenching device for automobile forged wheel hub forming forging according to claim 2 is characterized in that: A side of the sliding rod (19) close to the clamping plate (18) is arranged as an inclined surface, a top of the limiting block (110) is arranged as an inclined surface, and a bottom of the limiting block (110) is arranged as an inclined surface.

4. The water quenching device for automobile forged wheel hub forming forging according to claim 3 is characterized in that: The protective device comprises a hollow block (20), a rotating rod (21), a connecting rod (22) and a protective plate (23); the hollow block (20) is fixedly mounted on the circumferential surface of the cylinder (111); the rotating rod (21) is rotatably mounted on the inner wall of the water tank (1); the connecting rod (22) is fixedly mounted on the inner wall of the rotating rod (21); the protective plate (23) is fixedly mounted on the rear side of the connecting rod (22); and a first torsion spring is provided between the rotating rod (21) and the water tank (1).

5. The water quenching device for automobile forged wheel hub forming forging according to claim 4, characterized in that: The protective device further comprises a slide rail (24), a pulley (25), a No. 4 spring (26) and a rotating shaft (27); the slide rail (24) is fixedly mounted on the rear side of the water tank (1); the pulley (25) is fixedly mounted on the front side of the protective plate (23); the pulley (25) is in contact with the slide rail (24); the rotating shaft (27) is fixedly passed through the inner and outer walls of the rotating rod (21); and a No. 4 spring (26) is arranged between the water tank (1) and the rotating shaft (27).

6. The water quenching device for automobile forged wheel hub forming forging according to claim 5, characterized in that: The protective device further comprises a rotating cylinder (28) and a stirring blade (29); the rotating cylinder (28) is rotatably mounted on the inner wall of the water tank (1); the stirring blade (29) is fixedly mounted on the circumferential surface of the rotating cylinder (28); a spiral rod is arranged on the top of the rotating cylinder (28); and the spiral rod is threadedly connected to the cylinder (111).

7. The water quenching device for automobile forged wheel hub forming forging according to claim 6, characterized in that: The fixing device comprises a fixing block (30), an insert block (31), a round rod (32) and a No. 5 spring (33); the fixing block (30) is fixedly mounted through the inner and outer walls of the water tank (1); the insert block (31) is slidably mounted on the inner wall of the fixing block (30); one side of the round rod (32) is fixedly mounted on the right side of the insert block (31); the other side of the round rod (32) is slidably mounted through the inner and outer walls of the fixing block (30); the No. 5 spring (33) is arranged between the insert block (31) and the fixing block (30); and the left side of the insert block (31) is arranged as an inclined surface.

8. The water quenching device for automobile forged wheel hub forming forging according to claim 7, characterized in that: The fixing device further comprises a brake rod (34), a rotating button (35), a locking gear (36), a receiving tube (37) and a rotating block (38); the brake rod (34) is fixedly mounted on the right side of the round rod (32); the rotating button (35) is rotatably mounted on the inner wall of the fixing block (30); a second torsion spring is provided between the rotating button (35) and the fixing block (30); the receiving tube (37) is fixedly mounted on the right side of the fixing block (30); a spiral groove is provided on the circumferential surface of the receiving tube (37); the rotating block (38) is rotatably mounted on the circumferential surface of the receiving tube (37); the rotating block (38) is threadedly connected to the spiral groove; and the locking gear (36) is fixedly mounted on the circumferential surface of the rotating block (38).

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