A clamping and fixing device for heat treatment of metal materials and method thereof

Abstract

The invention discloses a clamping and fixing device for heat treatment of metal materials and a method thereof, which relate to the technical field of metal heat treatment, comprising a box body, a clamp being rotatably installed on the bottom of the inner wall of the box body, a gasket being fixedly installed on the bottom of the inner wall of the box body, a fixing device being arranged inside the box body, the base being rotatably installed on the bottom of the inner wall of the box body, the support seat being fixedly installed on the top of the base, the rotating shaft being rotatably installed on the top of the support seat, the arc plate being fixedly installed on the circumferential surface of the rotating shaft, the A clamping plate being fixedly installed on the end of the arc plate away from the rotating shaft, the B clamping plate being connected to the A clamping plate through a No. 1 spring, the rotation of the arc plate will drive the A clamping plate to rotate, the rotation of the A clamping plate will drive the B clamping plate to rotate, the rotation of the B clamping plate will fix the clamp, so as to prevent the metal from being shifted in position during the heating process, resulting in uneven heating, affecting subsequent processing, and ensuring production efficiency.

Description

Technical Field

[0001] The invention relates to the technical field of metal heat treatment, in particular to a clamping and fixing device for heat treatment of metal materials and a method thereof. Background Art

[0002] Heat treatment of metal materials is the process of changing the structure and properties of a material by controlling its temperature and treatment process. Gripping fixtures play a vital role in the heat treatment process. They are used to fix the metal workpiece to ensure stability at high temperatures and accuracy of treatment.

[0003] The patent with the patent announcement number CN210678460U relates to a clamping and fixing device for heat treatment of metal materials, including a support seat, two moving bars, a fixed platform, a first clamping block, two moving grooves provided on the top of the fixed platform, and a telescopic cylinder fixedly installed on the top of the support seat, and also includes a slide groove provided on the inner side of the moving bar, a fixed block is fixedly installed on the top of the fixed platform, and a slider is welded on the fixed platform. The patent is provided with a connecting block on one of the moving bars, and a second fixed edge is welded on the fixed block, and a positioning rod passes through the through hole on the second fixed edge, so that the fixed platform has better stability during operation.

[0004] In the above patent, a connecting block is provided on one of the movable bars, and a second fixed edge is welded on the fixed block, and a positioning rod passes through the through hole on the second fixed edge, so that the fixed platform has better stability during operation. However, after the metal is clamped, the high-temperature metal is prone to deformation after excessive clamping, which will affect the quality of the metal after heat treatment and affect the production quality. Summary of the invention

[0005] In view of the deficiencies in the prior art, the present invention provides a clamping and fixing device for heat treatment of metal materials and a method thereof, 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 clamping and fixing device for heat treatment of metal materials and a method thereof, comprising a box body, a clamp is rotatably installed on the bottom of the inner wall of the box body, a gasket is fixedly installed on the bottom of the inner wall of the box body, and a fixing device, a deceleration device and a protection device are arranged inside the box body;

[0007] The fixing device includes: a base, a support seat, a rotating shaft, an arc plate, a clamping plate A, a clamping plate B and a spring No. 1. The base is rotatably installed on the bottom of the inner wall of the box body, the support seat is fixedly installed on the top of the base, the rotating shaft is rotatably installed on the top of the support seat, the arc plate is fixedly installed on the circumferential surface of the rotating shaft, the clamping plate A is fixedly installed on the end of the arc plate away from the rotating shaft, and the clamping plate B is connected to the clamping plate A through a spring No. 1.

[0008] The rotation of the arc plate will drive the A clamp to rotate, the rotation of the A clamp will drive the B clamp to rotate, and the rotation of the B clamp will fix the fixture.

[0009] According to the above technical solution, the fixing device also includes: a push block, a support block, a limit rod and a limit column, the push block passes through and is slidably installed on the surface of the A clamp, the support block is fixedly installed on the bottom of the arc plate, the limit rod passes through and is slidably installed on the surface of the support block, and the limit column is fixedly installed on the surface of the rotating shaft.

[0010] The movement of the push block will contact and push the limit rod to move in the direction of the limit column. The movement of the limit rod will contact the limit column. After the limit rod contacts the limit column, it will limit the limit column, so that the shaft cannot continue to rotate.

[0011] According to the above technical solution, the No. 1 spring is arranged between the A clamp and the B clamp, the push block is in contact with the limit rod, and the No. 1 spring drives the B clamp to reset.

[0012] According to the above technical scheme, the deceleration device includes: an outer shell, a hydraulic rod, a spring piece, an elastic telescopic rod, a limit plate, a friction plate, a ring, an L-shaped plate, a reset plate, a support rod and a hook. The outer shell is slidably mounted on the top of the inner wall of the box body, the fixed end of the hydraulic rod is slidably mounted on the top of the inner wall of the box body, the spring piece is fixedly mounted on the circumferential surface of the output end of the hydraulic rod, the fixed end of the elastic telescopic rod is fixedly mounted on the bottom of the inner wall of the outer shell, the limit plate is fixedly mounted on the output end of the elastic telescopic rod, the friction plate is slidably mounted on the inner wall of the outer shell, the ring is fixedly mounted on the circumferential surface of the output end of the hydraulic rod, the L-shaped plate is rotatably mounted on the inner wall of the outer shell, the reset plate is rotatably mounted on the circumferential surface of the output end of the hydraulic rod, the support rod is fixedly mounted on the circumferential surface of the output end of the hydraulic rod, and the hook is arranged at the bottom of the output end of the hydraulic rod.

[0013] The output end of the hydraulic rod will move toward the bottom, and the movement of the output end of the hydraulic rod will drive the spring piece to move. The movement of the spring piece will contact and squeeze the friction plate. The spring piece will be deformed after being squeezed, and the deformation will increase the contact area with the friction plate.

[0014] According to the above technical solution, a No. 2 spring is arranged between the friction plate and the housing, the spring is in contact with the friction plate, and the friction plate is reset by the No. 2 spring.

[0015] According to the above technical solution, the reset plate contacts the L-shaped plate, the circular ring contacts the limit plate, and the support rod contacts the reset plate.

[0016] According to the above technical solution, the protection device includes: a fire door, an A connecting rod, a positioning block, a B connecting rod, a handle, a long rod and a rotating block. The fire door is slidably installed on the surface of the box body, the A connecting rod is fixedly installed on the surface of the outer shell, the positioning block is rotatably installed on the end of the A connecting rod away from the outer shell, the B connecting rod is fixedly installed on the side of the fire door close to the outer shell, the long rod penetrates and is slidably installed on the surface of the fire door, the handle is fixedly installed on one end of the long rod, and the rotating block is fixedly installed on the other end of the long rod.

[0017] The movement of the outer shell will drive the A connecting rod to move, the movement of the A connecting rod will drive the positioning block to move, the movement of the positioning block will drive the B connecting rod to move, and the movement of the B connecting rod will drive the fire door to move.

[0018] According to the above technical solution, the positioning block is in contact with the B connecting rod, and the rotating block is in contact with the positioning block.

[0019] A method for using a clamping and fixing device for heat treatment of metal materials comprises the following steps:

[0020] Step 1: Place the metal inside the box, rotate the clamp, and after the clamp clamps the metal, rotate the shaft;

[0021] Step 2: The rotation of the shaft will drive the arc plate to rotate, the rotation of the arc plate will drive the A clamping plate to rotate, and the rotation of the A clamping plate will drive the B clamping plate to rotate;

[0022] Step 3: The rotation of clamp B will fix the fixture to prevent the metal from shifting during the heating process, causing uneven heating and affecting subsequent processing, thereby ensuring production efficiency.

[0023] The present invention provides a clamping and fixing device and method for heat treatment of metal materials, which has the following beneficial effects:

[0024] (1) The invention rotates the shaft, which drives the A clamp and the B clamp to rotate. The rotation of the B clamp fixes the clamp to prevent the metal from shifting during the heating process, resulting in uneven heating and affecting subsequent processing, thereby ensuring production efficiency. After the B clamp is clamped, the limit rod is pushed to clamp the limit column to prevent the metal from being over-clamped after heating, which may cause deformation of the metal and affect the processing effect, thereby improving the qualified rate of metal processing.

[0025] (2) The invention increases the contact area between the spring sheet and the friction plate by deforming the spring sheet, thereby increasing the resistance to the movement of the hydraulic rod, preventing the hydraulic rod from moving too fast and causing the hook claw to shake, allowing the hook claw to clamp quickly and effectively, thereby improving work efficiency. After the hydraulic rod moves to the bottom, the limit of the friction block is released, so that the friction block no longer contacts the spring sheet, so that the output end of the hydraulic rod will not be affected by the deceleration effect when moving toward the top, preventing the output end of the hydraulic rod from being overloaded due to excessive resistance, thereby improving the protection of the device. When the hydraulic rod moves to the bottom, it will drive the friction plate to move, causing the friction plate to be re-limited, so that it does not hinder the device from performing deceleration work again, thereby improving the practicality of the device.

[0026] (3) This invention drives the fire door to move by moving the outer shell, so that the hook clamps the metal when the fire door is in a closed state, preventing the metal from falling and causing debris to splash and cause harm to the workers, thereby improving the safety of the workers at work. When the handle is pressed and turned, it will contact the connection between the fire door and the outer shell, so that the fire door can be opened in special circumstances, thereby improving the practicality of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0028] Figure 2 This is a schematic diagram of the positional relationship between the clamp and the box body of the present invention;

[0029] Figure 3 This is a schematic diagram of the positional relationship between the gasket and the box body of the present invention;

[0030] Figure 4 It is a schematic diagram of the structure of the fixing device of the present invention;

[0031] Figure 5 This is a schematic diagram of the positional relationship between the A clamping plate and the B clamping plate of the present invention;

[0032] Figure 6 It is a schematic diagram of the structure of the deceleration device of the present invention;

[0033] Figure 7 It is a schematic diagram of the structure of the protection device of the present invention.

[0034] In the figure: 1. box body; 2. clamp; 3. gasket; 41. base; 42. support seat; 43. rotating shaft; 44. arc plate; 45. A clamp; 46. B clamp; 47. No. 1 spring; 48. push block; 49. support block; 410. limit rod; 411. limit column; 51. shell; 52. hydraulic rod; 53. spring; 54. elastic telescopic rod; 55. limit plate; 56. friction plate; 57. ring; 58. L-shaped plate; 59. reset plate; 510. support rod; 511. hook; 61. fire door; 62. A connecting rod; 63. positioning block; 64. B connecting rod; 65. handle; 66. long rod; 67. rotating block. DETAILED DESCRIPTION

[0035] 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.

[0036] See also Figure 1-Figure 5 , one embodiment of the present invention is: a clamping and fixing device for heat treatment of metal materials and a method thereof, comprising a box body 1, a clamp 2 is rotatably installed at the bottom of the inner wall of the box body 1, a gasket 3 is fixedly installed at the bottom of the inner wall of the box body 1, and a fixing device is arranged inside the box body 1;

[0037] The fixing device includes: a base 41, a support seat 42, a rotating shaft 43, an arc plate 44, a clamping plate A 45, a clamping plate B 46 and a spring No. 1 47. The base 41 is rotatably mounted on the bottom of the inner wall of the box body 1, the support seat 42 is fixedly mounted on the top of the base 41, the rotating shaft 43 is rotatably mounted on the top of the support seat 42, the arc plate 44 is fixedly mounted on the circumferential surface of the rotating shaft 43, the clamping plate A 45 is fixedly mounted on one end of the arc plate 44 away from the rotating shaft 43, and the clamping plate B 46 is connected to the clamping plate A 45 through a spring No. 1 47 to prevent the metal from shifting in position during heating, resulting in uneven heating, affecting subsequent processing, and ensuring production efficiency.

[0038] The fixing device also includes: a push block 48, a support block 49, a limit rod 410 and a limit column 411. The push block 48 passes through and is slidably installed on the surface of the A clamp 45, the support block 49 is fixedly installed on the bottom of the arc plate 44, the limit rod 410 passes through and is slidably installed on the surface of the support block 49, and the limit column 411 is fixedly installed on the surface of the rotating shaft 43 to prevent the metal from being deformed due to excessive clamping after heating, affecting the processing effect, and improving the qualified rate of metal processing.

[0039] The No. 1 spring 47 is arranged between the A clamping plate 45 and the B clamping plate 46. The push block 48 contacts the limit rod 410, and the No. 1 spring 47 drives the B clamping plate 46 to reset.

[0040] A method for using a clamping and fixing device for heat treatment of metal materials comprises the following steps:

[0041] Step 1: Place the metal inside the box 1, rotate the clamp 2, and after the clamp 2 clamps the metal, rotate the shaft 43;

[0042] Step 2: The rotation of the rotating shaft 43 drives the arc plate 44 to rotate, the rotation of the arc plate 44 drives the A clamping plate 45 to rotate, and the rotation of the A clamping plate 45 drives the B clamping plate 46 to rotate;

[0043] Step 3: The rotation of the B clamp 46 will fix the clamp 2 to prevent the metal from shifting during the heating process, resulting in uneven heating and affecting subsequent processing, thereby ensuring production efficiency.

[0044] When the present embodiment is working, metal is placed inside the box 1, the clamp 2 is rotated, and then the shaft 43 is rotated. The rotation of the shaft 43 drives the arc plate 44 to rotate, and the rotation of the arc plate 44 drives the A clamp 45 to rotate. The rotation of the A clamp 45 drives the B clamp 46 to rotate. The rotation of the B clamp 46 fixes the clamp 2 to prevent the position of the metal from shifting during the heating process, resulting in uneven heating and affecting subsequent processing, thereby ensuring production efficiency. When the B clamp 46 clamps the clamp 2, the B clamp 46 continues to move and contacts the push block. 48 moves in the direction away from the clamp 2, the push block 48 moves to contact and push the limit rod 410 to move in the direction of the limit column 411, the limit rod 410 moves to contact the limit column 411, and after the limit rod 410 contacts the limit column 411, it limits the limit column 411, so that the shaft 43 cannot continue to rotate, so that after the B clamp 46 clamps the clamp 2, the shaft 43 cannot continue to rotate, preventing the metal from being over-clamped after heating, which will cause the metal to deform and affect the processing effect, thereby improving the qualified rate of metal processing.

[0045] See also Figure 1-Figure 7On the basis of the above embodiment, in another embodiment of the present invention, a deceleration device and a protective device are arranged inside the box body 1, and the deceleration device comprises: a shell 51, a hydraulic rod 52, a spring piece 53, an elastic telescopic rod 54, a limit plate 55, a friction plate 56, a ring 57, an L-shaped plate 58, a reset plate 59, a support rod 510 and a hook 511. The shell 51 is slidably mounted on the top of the inner wall of the box body 1, the fixed end of the hydraulic rod 52 is slidably mounted on the top of the inner wall of the box body 1, the spring piece 53 is fixedly mounted on the circumferential surface of the output end of the hydraulic rod 52, the fixed end of the elastic telescopic rod 54 is fixedly mounted on the bottom of the inner wall of the shell 51, the limit plate 55 is fixedly mounted on the output end of the elastic telescopic rod 54, and the friction plate 56 is slidably mounted on the outer wall of the shell 51. The inner wall, the ring 57 is fixedly installed on the circumferential surface of the output end of the hydraulic rod 52 to prevent the output end of the hydraulic rod 52 from being overloaded due to excessive resistance, thereby improving the protection of the device. The L-shaped plate 58 is rotatably installed on the inner wall of the outer shell 51, the reset plate 59 is rotatably installed on the circumferential surface of the output end of the hydraulic rod 52, the support rod 510 is fixedly installed on the circumferential surface of the output end of the hydraulic rod 52, and the hook 511 is arranged at the bottom of the output end of the hydraulic rod 52. Due to the increase in the contact area between the spring piece 53 and the friction plate 56, the resistance during movement increases, so that the moving speed of the output end of the hydraulic rod 52 will be reduced, preventing the hydraulic rod 52 from moving too fast and causing the hook 511 to shake, so that the hook 511 can clamp quickly and effectively, thereby improving work efficiency.

[0046] A No. 2 spring is provided between the friction plate 56 and the housing 51 , and the spring 53 contacts the friction plate 56 , and the No. 2 spring drives the friction plate 56 to reset.

[0047] The reset plate 59 contacts the L-shaped plate 58 , the circular ring 57 contacts the limiting plate 55 , and the support rod 510 contacts the reset plate 59 .

[0048] The protection device includes: a fire door 61, an A connecting rod 62, a blocking block 63, a B connecting rod 64, a handle 65, a long rod 66 and a rotating block 67. The fire door 61 is slidably installed on the surface of the box body 1, the A connecting rod 62 is fixedly installed on the surface of the outer shell 51, the blocking block 63 is rotatably installed on the end of the A connecting rod 62 away from the outer shell 51, and the B connecting rod 64 is fixedly installed on the side of the fire door 61 close to the outer shell 51 to prevent debris from splashing when metal falls and causing harm to the staff, thereby improving the safety of the workers at work. The long rod 66 penetrates and is slidably installed on the surface of the fire door 61, the handle 65 is fixedly installed on one end of the long rod 66, and the rotating block 67 is fixedly installed on the other end of the long rod 66, so that the fire door 61 can also be opened in special circumstances, thereby improving the practicality of the device.

[0049] The blocking block 63 contacts the B connecting rod 64 , and the rotating block 67 contacts the blocking block 63 .

[0050] When the present embodiment is working: after the metal heating is completed, the output end of the hydraulic rod 52 will move toward the bottom, and the movement of the output end of the hydraulic rod 52 will drive the spring sheet 53 to move, and the movement of the spring sheet 53 will contact and squeeze the friction plate 56. The spring sheet 53 will be deformed after being squeezed, and the deformation of the spring sheet 53 will increase the contact area with the friction plate 56, so that when the output end of the hydraulic rod 52 moves toward the bottom, the resistance during movement increases due to the increase in the contact area between the spring sheet 53 and the friction plate 56, so that the moving speed of the output end of the hydraulic rod 52 will be reduced, so as to prevent the hydraulic rod 52 from moving too fast and causing the hook 511 to shake, so that the hook 511 can clamp quickly and effectively, thereby improving the working efficiency. When the output end of the hydraulic rod 52 moves, the movement of the output end of the hydraulic rod 52 will drive the ring 57 to move, and the ring 57 will contact and squeeze the limit plate 55, so that the limit plate 55 can be clamped quickly and effectively. After being squeezed, plate 55 will move toward the bottom. The movement of limit plate 55 will release the limit on friction plate 56. After friction plate 56 loses the limit, it will be reset by spring No. 2 to drive friction plate 56 to move in the direction away from the output end of hydraulic rod 52, so that the output end of hydraulic rod 52 will not be affected by the deceleration effect when moving toward the top, preventing the output end of hydraulic rod 52 from being overloaded due to excessive resistance, thereby improving the protection of the device. When the output end of hydraulic rod 52 moves toward the top, the movement of the output end of hydraulic rod 52 will drive the reset plate 59 to move, and the movement of reset plate 59 will drive the L-shaped plate 58 to rotate. The rotation of L-shaped plate 58 will drive friction plate 56 to move toward the output end of hydraulic rod 52. The movement of friction plate 56 will be re-limited by limit plate 55, so that the device will not be hindered from decelerating again, thereby improving the practicability of the device.

[0051] When the shell 51 moves, the movement of the shell 51 will drive the A connecting rod 62 to move, the movement of the A connecting rod 62 will drive the positioning block 63 to move, the movement of the positioning block 63 will drive the B connecting rod 64 to move, and the movement of the B connecting rod 64 will drive the fire door 61 to move, so that when the hook 511 is used to grab, the fire door 61 will be closed to prevent debris from splashing when metal falls and causing harm to the staff, thereby improving the safety of the workers at work. Push the handle 65, the movement of the handle 65 will drive the long rod 66 to move, and the movement of the long rod 66 will drive the rotating block 67 to move, and then rotate the handle 65. The rotation of the handle 65 will drive the long rod 66 to rotate, and the rotation of the long rod 66 will drive the rotating block 67 to rotate. The rotation of the rotating block 67 will contact and drive the positioning block 63 to rotate, and the rotation of the positioning block 63 will disconnect the connection between the A connecting rod 62 and the B connecting rod 64, so that the fire door 61 can be opened in special circumstances, thereby improving the practicality of the device.

[0052] 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 clamping and fixing device for heat treatment of metal materials, comprising a box (1), characterized in that: A clamp (2) is rotatably mounted on the bottom of the inner wall of the box (1), a gasket (3) is fixedly mounted on the bottom of the inner wall of the box (1), and a fixing device, a deceleration device and a protection device are arranged inside the box (1); The fixing device comprises: a base (41), a support base (42), a rotating shaft (43), an arc plate (44), an A clamping plate (45), a B clamping plate (46) and a No. 1 spring (47); the base (41) is rotatably mounted on the bottom of the inner wall of the box body (1); the support base (42) is fixedly mounted on the top of the base (41); the rotating shaft (43) is rotatably mounted on the top of the support base (42); the arc plate (44) is fixedly mounted on the circumferential surface of the rotating shaft (43); the A clamping plate (45) is fixedly mounted on one end of the arc plate (44) away from the rotating shaft (43); and the B clamping plate (46) is connected to the A clamping plate (45) via the No. 1 spring (47); The deceleration device comprises: a housing (51), a hydraulic rod (52), a spring sheet (53), an elastic telescopic rod (54), a limit plate (55), a friction plate (56), a ring (57), an L-shaped plate (58), a reset plate (59), a support rod (510) and a hook (511); the housing (51) is slidably mounted on the top of the inner wall of the box body (1); the fixed end of the hydraulic rod (52) is slidably mounted on the top of the inner wall of the box body (1); the spring sheet (53) is fixedly mounted on the circumferential surface of the output end of the hydraulic rod (52); the fixed end of the elastic telescopic rod (54) is fixedly mounted on the housing The limit plate (55) is fixedly mounted on the output end of the elastic telescopic rod (54), the friction plate (56) is slidably mounted on the inner wall of the housing (51), the ring (57) is fixedly mounted on the circumferential surface of the output end of the hydraulic rod (52), the L-shaped plate (58) is rotatably mounted on the inner wall of the housing (51), the reset plate (59) is rotatably mounted on the circumferential surface of the output end of the hydraulic rod (52), the support rod (510) is fixedly mounted on the circumferential surface of the output end of the hydraulic rod (52), and the hook (511) is arranged at the bottom of the output end of the hydraulic rod (52); The protection device comprises: a fire door (61), an A connecting rod (62), a positioning block (63), a B connecting rod (64), a handle (65), a long rod (66) and a rotating block (67); the fire door (61) is slidably mounted on the surface of the box body (1); the A connecting rod (62) is fixedly mounted on the surface of the outer shell (51); the positioning block (63) is rotatably mounted on one end of the A connecting rod (62) away from the outer shell (51); the B connecting rod (64) is fixedly mounted on a side of the fire door (61) close to the outer shell (51); the long rod (66) penetrates and is slidably mounted on the surface of the fire door (61); the handle (65) is fixedly mounted on one end of the long rod (66); and the rotating block (67) is fixedly mounted on the other end of the long rod (66).

2. A clamping and fixing device for heat treatment of metal materials according to claim 1, characterized in that: The fixing device further comprises: a push block (48), a support block (49), a limit rod (410) and a limit column (411); the push block (48) penetrates and is slidably mounted on the surface of the A clamping plate (45); the support block (49) is fixedly mounted on the bottom of the arc plate (44); the limit rod (410) penetrates and is slidably mounted on the surface of the support block (49); and the limit column (411) is fixedly mounted on the surface of the rotating shaft (43).

3. A clamping and fixing device for heat treatment of metal materials according to claim 2, characterized in that: The No. 1 spring (47) is arranged between the A clamping plate (45) and the B clamping plate (46), and the push block (48) is in contact with the limiting rod (410).

4. A clamping and fixing device for heat treatment of metal materials according to claim 3, characterized in that: A No. 2 spring is arranged between the friction plate (56) and the housing (51), and the spring plate (53) is in contact with the friction plate (56).

5. A clamping and fixing device for heat treatment of metal materials according to claim 4, characterized in that: The reset plate (59) contacts the L-shaped plate (58), the circular ring (57) contacts the limiting plate (55), and the support rod (510) contacts the reset plate (59).

6. The clamping and fixing device for heat treatment of metal materials according to claim 5, characterized in that: The locking block (63) is in contact with the B connecting rod (64), and the rotating block (67) is in contact with the locking block (63).

7. The method for using the clamping and fixing device for heat treatment of metal materials according to claim 6, characterized in that: The steps include: Step 1: Place the metal inside the box (1), rotate the clamp (2), and after the clamp (2) clamps the metal, rotate the shaft (43); Step 2: The rotating shaft (43) rotates to drive the arc plate (44), the arc plate (44) rotates to drive the A clamping plate (45), and the A clamping plate (45) rotates to drive the B clamping plate (46); Step 3: The B clamping plate (46) is rotated to fix the clamp (2) to prevent the metal from being shifted during the heating process, resulting in uneven heating and affecting subsequent processing, thereby ensuring production efficiency.

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