A cooling device for preventing stress deformation after heat treatment of metal parts

Abstract

This invention discloses a cooling device for preventing stress deformation after heat treatment of metal parts, belonging to the field of heat treatment cooling. It includes a cooling box with a liquid storage tank slidably mounted at its bottom; a drive mechanism is located at the rear of the cooling box; a lifting mechanism is located above the inner side of the cooling box; and a circulation mechanism is located on the outer side of the cooling box. The drive mechanism includes a guide rail seat, with a motor fixedly connected to its upper surface. A bidirectional lead screw is fixedly connected to the bottom end of the motor's output shaft inside the guide rail seat. A lead screw sleeve and a lead screw sleeve are threadedly connected to the upper and lower outer walls of the bidirectional lead screw, respectively. A filter screen is located below the liquid storage tank, not affecting the screw's entry into the tank for cooling. When the liquid storage tank descends and then rises, the filter screen is above the tank, separated from the cooling liquid, facilitating the filtration and separation of debris from the surface of the screw after heat treatment.

Description

Technical Field

[0001] This invention relates to the field of heat treatment cooling, and more particularly to a cooling device for preventing stress deformation of metal parts after heat treatment. Background Technology

[0002] Metal surface heat treatment is a process technology that aims to improve material properties by heating metal to a certain temperature and controlling parameters such as heating rate, holding time, and cooling rate to cause changes in the microstructure and chemical composition of the metal surface layer. However, metal surface heat treatment equipment still has some problems. High temperatures during heat treatment can easily cause metal deformation, and rapid cooling and shaping of the metal surface is inconvenient, potentially affecting the quality of metal parts. Screws, commonly used fasteners in the automotive, wind power, and other fields, utilize the physical and mathematical principles of inclined planes, circular rotation, and friction to gradually tighten objects and machine parts. Screws are a general term for fasteners and are indispensable industrial necessities in daily life, playing a vital role in industry. Screws are a common invention of people's production and life over thousands of years, and their main function is to connect two workpieces together for fastening.

[0003] Patent CN218146844U discloses a heat treatment cooling device for screw production, including a cooling box. The cooling box contains a conveyor belt with baffles on both sides. The top surface of each baffle is welded to the inner top wall of the cooling box. A first rotating shaft is rotatably connected to one side wall of each baffle, penetrating the other baffle and extending to the outside of the cooling box. Multiple distributing plates are arranged around the outer ring of the first rotating shaft on the side where the two baffles are close to each other. A drive motor is located on one side of the top surface of the cooling box, and a second rotating shaft is located at the output end of the drive motor. This heat treatment cooling device for screw production, by incorporating a drive motor and distributing plates, can flatten piles of screws on the conveyor belt through the distributing plates, facilitating better cooling of the screws. The inclusion of a water tank, connecting pipes, and spray nozzles further enhances the cooling effect on the screws.

[0004] In the aforementioned technology, when cooling screws after heat treatment, the screws need to be placed on a conveyor belt for transport. The heated screws are prone to damaging the conveyor belt. Furthermore, the cooling method of spraying is not suitable for immersing the screws completely in the coolant, resulting in poor cooling effect. After the bolts are sprayed with coolant, the surface is prone to liquid adhesion and is not easy to shake off, which increases the difficulty of subsequent air drying. Therefore, improvements are needed. To address this, we propose a stress deformation prevention cooling device for metal parts after heat treatment. Summary of the Invention

[0005] Purpose of the invention: The purpose of this invention is to provide a method that allows the screw to be completely immersed in coolant for better cooling; another purpose of this invention is to provide a method that facilitates the removal of the bolt from the coolant.

[0006] Technical solution: A cooling device for preventing stress deformation after heat treatment of metal parts, comprising a cooling box, wherein a liquid storage tank is slidably installed at the bottom of the cooling box;

[0007] A drive mechanism is provided at the rear of the cooling box;

[0008] A lifting mechanism is provided on the upper inner side of the cooling box;

[0009] A circulation mechanism is provided on the outside of the cooling box;

[0010] The drive mechanism includes a guide rail base, a motor is fixedly connected to the upper surface of the guide rail base, and a bidirectional lead screw is fixedly connected to the bottom end of the output shaft of the motor on the inner side of the guide rail base. A lead screw sleeve one and a lead screw sleeve two are threadedly connected to the upper and lower sides of the outer side wall of the bidirectional lead screw, respectively. A crossbar is slidably connected inside the lead screw sleeve one on the inner side of the cooling box, and a fixing plate is fixedly connected to both ends of the crossbar.

[0011] The front surface of the lead screw sleeve 2 is fixedly connected to the rear surface of the liquid storage tank; the lifting mechanism includes a mounting plate, the rear surface of the mounting plate is fixedly connected to the front surface of the fixing plate, guide sleeve 1 is fixedly connected to both sides of the front surface of the mounting plate, vertical rod 1 is slidably connected to the outer wall of the guide sleeve 1, guide sleeve 2 is fixedly connected to the front surface of the mounting plate between the two guide sleeve 1, vertical rod 2 is slidably connected to the inside of the guide sleeve 2, a two-way connector is fixedly connected to the top of the vertical rod 2, two telescopic pull rods are rotatably connected to the inner side of the two-way connector through a rotating shaft, and a rotating connector is rotatably connected to the end of the telescopic pull rod away from the two-way connector through a rotating shaft, the lower surface of the rotating connector is fixedly connected to the top of the vertical rod 1;

[0012] The bottom ends of the two vertical rods are fixedly connected to a storage net box.

[0013] Furthermore, the bottom of the cooling box is fixedly connected to two support legs, and the front surface of the cooling box is fitted with a door via a hinge.

[0014] Furthermore, multiple wedge-shaped blocks are fixedly connected to the rear sides of both sides inside the cooling box.

[0015] Furthermore, a filter screen is provided inside the liquid storage tank, and connecting frames are fixedly connected to the front sides of the inner sides of the cooling tank on both sides of the upper surface of the filter screen.

[0016] Furthermore, each of the two fixed plates has a fixed bearing on its opposite side, a fixed post on the front surface of the bearing, a movable rod on the outer side of the fixed post, a limiting groove on the inner side of the movable rod located inside the fixed post, a limiting block fixedly connected to the outer wall of the fixed post located inside the limiting groove, the limiting block on the same side and multiple wedge-shaped blocks on the same vertical line, and springs three fixedly connected to both sides of the lead screw sleeve on the outer side of the crossbar, the opposite ends of the two springs three respectively abutting against the opposite sides of the two fixed plates.

[0017] Furthermore, the lower inner surface of the lead screw sleeve is integrally formed with multiple tooth blocks, the lower surface of the crossbar is provided with tooth grooves, the tooth grooves are meshed with the tooth blocks, the upper inner surface of the lead screw sleeve is fixedly connected with multiple springs, the bottom ends of the multiple springs are jointly fixedly connected with a lower pressure plate, and the lower surface of the lower pressure plate is in contact with the upper surface of the crossbar.

[0018] Furthermore, a lower support plate is fixedly connected to the bottom end of the second vertical rod, and a second spring is fixedly connected to the opposite side of the lower support plate and the bidirectional connector, located on the outside of the second vertical rod.

[0019] Furthermore, a pressure block is fixedly connected to the rear surface of the bidirectional connector, the rear end of the pressure block extends to the inner side of the guide rail seat, and the upper surface of the pressure block is in contact with the inner upper surface of the guide rail seat.

[0020] Furthermore, the circulation mechanism includes two corrugated condenser tubes. These two corrugated condenser tubes are located inside the cooling tank and are fixedly connected to a circulation pipe (I). Protective covers are fixedly connected to the opposite sides of each of the two corrugated condenser tubes. Circulation pipes (II) are fixedly connected to the opposite ends of the two corrugated condenser tubes, located outside the two protective covers. The bottom end of circulation pipe (II), located to the left of circulation pipe (I), is connected to the interior of the liquid storage tank. A circulation pump is fixedly connected to the lower right side of the cooling tank. The input end of the circulation pump is connected to the liquid storage tank. The internal components are interconnected, with the output end of the circulating pump fixedly connected to the bottom end of the second circulating pipe; a rotating head is fixedly connected to the bottom end of the protective cover, and a traction rod is rotatably connected to the front surface of the rotating head via a rotating shaft; electric push rods are fixedly connected to both sides of the cooling box, and the top end of the output end of the electric push rod is rotatably connected to the bottom end of the traction rod via a rotating shaft; two limiting rods are fixedly connected to the upper sides of the two protective covers on opposite sides, and the end of the limiting rod away from the protective cover penetrates into the interior of the cooling box and is slidably connected to the cooling box.

[0021] Beneficial effects: The filter screen is located below the liquid storage tank, so it does not affect the screw entering the liquid storage tank for cooling. When the liquid storage tank descends and rises, the filter screen is located above the liquid storage tank and is separated from the cooling liquid. At this time, it is convenient to filter and separate the debris on the surface of the screw after heat treatment during cooling.

[0022] During heat treatment cooling, the motor is started, controlling the relative movement of lead screw sleeve one and lead screw sleeve two, thereby causing the liquid storage tank and the mounting plate to move closer to each other, causing the collection net box to descend together. By moving the screw and coolant closer to each other, the movement time for the screw to enter the coolant for cooling is saved. As the collection net box descends with the mounting plate, spring two is compressed and reset, and vertical rod two slides upward along guide sleeve two. With the push and traction of vertical rod two and telescopic rod, vertical rod one descends along guide sleeve one, further pushing the collection net box down and causing the screw to enter the coolant, further shortening the water immersion time and achieving the effect of rapid liquid immersion cooling.

[0023] After cooling is complete, the motor is started to control the lead screw sleeve one and lead screw sleeve two to move in opposite directions. At this time, the liquid storage tank descends, and the collection net box rises together with the mounting plate. At the same time, the top of the pressure block is abutted by the inner side of the guide rail seat. As the lead screw sleeve one rises, it drives the mounting plate to rise. Spring two is stretched, causing vertical rod two to rise along the outer side of vertical rod two. Thus, under the pull of the telescopic rod, the collection net box is further lifted, so that the collection net box moves in opposite directions with the liquid storage tank and quickly detaches from the coolant.

[0024] Furthermore, as the screw sleeve rises, the storage net box moves back and forth along with it due to the reciprocating movement of the crossbar, and shakes up and down. This allows the screws that have been separated from the coolant to be screened left and right and shaken up and down to dehydrate, which speeds up the separation of the screws from the water and improves the efficiency of subsequent screw drying.

[0025] When the electric push rod is in the retracted state, the two protective covers will fit against the two sides of the cooling box under the pull of the traction rod, causing the corrugated condenser tube to shrink inside the protective cover, which will have a protective effect and prevent it from being exposed to the outside for a long time, which would easily attract dust and affect the condensation effect.

[0026] When liquid cooling is required, the electric actuator is activated to extend the protective cover away from the cooling tank and pull the corrugated condenser tube to unfold. Then, the pneumatic circulation pump draws liquid into the storage tank, and the coolant achieves circulation and condensation within the circulation channel formed by circulation pipe one, circulation pipe two, and the corrugated condenser tube. Attached Figure Description

[0027] Figure 1 This is a front view structural diagram of the present invention;

[0028] Figure 2 This is a schematic diagram of the structure of the present invention after the cabinet door is removed;

[0029] Figure 3 This is a schematic diagram of the drive mechanism of the present invention;

[0030] Figure 4 This is a cross-sectional view of the connection structure between the lead screw sleeve and the cross bar of the present invention.

[0031] Figure 5 This invention relates to a fixed plate and a shaft seat. A cross-sectional view of the connection structure between the shaft and the movable rod is also provided.

[0032] Figure 6 This is a front view structural schematic diagram of the lifting mechanism of the present invention;

[0033] Figure 7 This is a rear view structural schematic diagram of the lifting mechanism of the present invention;

[0034] Figure 8 This is a side view schematic diagram of the connection structure of the electric push rod, traction rod, corrugated condenser tube and protective cover of the present invention.

[0035] In the diagram: 1. Cooling tank; 2. Liquid storage tank; 3. Drive mechanism; 4. Lifting mechanism; 5. Circulation mechanism; 6. Support leg; 7. Wedge-shaped stop block; 8. Filter screen; 9. Connecting frame; 10. Door; 301. Guide rail seat; 302. Motor; 303. Double-acting lead screw; 304. Lead screw sleeve one; 305. Lead screw sleeve two; 306. Crossbar; 307. Fixing plate; 308. Shaft seat; 309. Shaft column; 310. Movable rod; 311. Limiting groove; 312. Limiting block; 313. Tooth block; 314. Tooth groove; 315. Spring one; 316. Downward pressure Plate; 317, Spring 3; 401, Mounting Plate; 402, Guide Sleeve 1; 403, Vertical Rod 1; 404, Guide Sleeve 2; 405, Vertical Rod 2; 406, Two-way Joint; 407, Telescopic Pull Rod; 408, Rotary Joint; 409, Lower Support Plate; 410, Spring 2; 411, Pressure Block; 412, Storage Net Box; 501, Corrugated Condenser Pipe; 502, Circulation Pipe 1; 503, Protective Cover; 504, Circulation Pipe 2; 505, Circulation Pump; 506, Rotating Head 1; 507, Traction Rod; 508, Electric Push Rod; 509, Limiting Rod. Detailed Implementation

[0036] To make the technical solution of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0037] Example

[0038] like Figure 1 and Figure 2 As shown, a cooling device for preventing stress deformation after heat treatment of metal parts is provided, including a cooling box 1, and a liquid storage tank 2 is slidably installed at the bottom of the cooling box 1.

[0039] The bottom of the cooling box 1 is fixedly connected to two support legs 6, and the front surface of the cooling box 1 is fitted with a door 10 via a hinge.

[0040] Multiple wedge-shaped blocks 7 are fixedly connected to the rear sides of both sides inside the cooling box 1;

[0041] A filter screen 8 is provided inside the liquid storage tank 2, and connecting brackets 9 are fixedly connected to the front of the two sides of the upper surface of the filter screen 8 and the inside of the cooling tank 1, respectively.

[0042] The liquid storage tank 2 can slide up and down along the bottom of the cooling tank 1 to store coolant. The support leg 6 provides support for the entire device. The filter screen 8 is located below the liquid storage tank 2 and does not affect the screw entering the liquid storage tank 2 for cooling. When the liquid storage tank 2 descends and rises, the filter screen 8 is located above the liquid storage tank 2 and is separated from the coolant. This facilitates the filtration and separation of debris from the surface of the screw after heat treatment during cooling. The door 10 is used to open or close the cooling tank 1, so that the surface of the filter screen 8 inside the cooling tank 1 can be cleaned by opening the door 10.

[0043] Multiple wedge-shaped blocks 7 are staggered and distributed on the left and right sides.

[0044] like Figure 3 , Figure 4 and Figure 5 As shown, a drive mechanism 3 is provided at the rear of the cooling box 1;

[0045] The drive mechanism 3 includes a guide rail seat 301. A motor 302 is fixedly connected to the upper surface of the guide rail seat 301. A bidirectional lead screw 303 is fixedly connected to the bottom end of the output shaft of the motor 302 inside the guide rail seat 301. A lead screw sleeve 304 and a lead screw sleeve 305 are threadedly connected to the upper and lower sides of the outer side wall of the bidirectional lead screw 303, respectively. A crossbar 306 is slidably connected inside the lead screw sleeve 304 inside the cooling tank 1. Fixing plates 307 are fixedly connected to both ends of the crossbar 306. The front surface of the lead screw sleeve 305 is fixedly connected to the rear surface of the liquid storage tank 2.

[0046] Two fixed plates 307 are fixedly connected to opposite sides of a bearing seat 308. A shaft column 309 is fixedly connected to the front surface of the bearing seat 308. A movable rod 310 is sleeved on the outside of the shaft column 309. A limiting groove 311 is opened inside the movable rod 310 on the inside side of the shaft column 309. A limiting block 312 is fixedly connected to the outer wall of the shaft column 309 and inside the limiting groove 311. The limiting block 312 on the same side and multiple wedge-shaped blocks 7 are on the same vertical line. Two springs 317 are fixedly connected to both sides of the lead screw sleeve 304 on the outside of the crossbar 306. The opposite ends of the two springs 317 are respectively attached to the opposite sides of the two fixed plates 307.

[0047] The lower inner surface of the lead screw sleeve 304 is integrally formed with multiple tooth blocks 313. The lower surface of the crossbar 306 is provided with tooth grooves 314, which mesh with the tooth blocks 313. Multiple springs 315 are fixedly connected to the upper inner surface of the lead screw sleeve 304. The bottom ends of the multiple springs 315 are fixedly connected to a lower pressure plate 316. The lower surface of the lower pressure plate 316 is in contact with the upper surface of the crossbar 306.

[0048] Start the motor 302, which drives the bidirectional lead screw 303 to rotate. This can control the lead screw sleeve 1 304 and lead screw sleeve 2 305 to move relative to or away from each other. Thus, the liquid storage tank 2 can be raised or lowered by the lead screw sleeve 2 305.

[0049] During the descent of the lead screw sleeve 304, when the movable rod 310 contacts the wedge-shaped blocks 7 on both sides, it is blocked by the parallel surface above the wedge-shaped blocks 7. At this time, the limiting groove 311 and the limiting block 312 will not limit the movable rod 310, and the movable rod 310 will rotate slightly along the outside of the shaft column 309. This ensures that the crossbar 306 will not move back and forth when it descends. After the movable rod 310 rotates slightly and disengages from the wedge-shaped blocks 7, it will return to a horizontal position due to the influence of its own weight and rotation angle (rotation angle is less than 90 degrees).

[0050] When the lead screw sleeve 304 rises, the movable rod 310 contacts the inclined surface below the wedge-shaped block 7. At this time, the limiting groove 311 and the limiting block 312 will restrict the movable rod 310 from rotating along the outside of the shaft column 309. When the movable rod 310 rises with the lead screw sleeve 304 and contacts the wedge-shaped block 7, it will be blocked by the wedge-shaped block 7, which will then push the crossbar 306 to slide along the inside of the lead screw sleeve 304. After disengaging from the wedge-shaped block 7, it will be reset under the pull of the spring 317.

[0051] Furthermore, due to the staggered distribution of multiple wedge-shaped blocks 7 on both sides, during the upward movement of the crossbar 306, the two movable rods 310 on both sides will be alternately squeezed by the multiple wedge-shaped blocks 7 on both sides, thereby pushing the crossbar 306 to move. After the right movable rod 310 is blocked by the right wedge-shaped block 7 and pushes the crossbar 306 to the left, it moves back to the right under the pull of the squeezed spring 317. Then, after the left movable rod 310 is blocked by the left wedge-shaped block 7, it pushes the crossbar 306 to the right, and moves back to the left under the pull of the squeezed spring 317. This makes the frequency of left and right reciprocating faster as the crossbar rises.

[0052] As the crossbar 306 slides back and forth along the inner side of the lead screw sleeve 304, it is engaged by the tooth block 313 and the tooth groove 314, and by the lower pressure plate 316 and the spring 315, causing the crossbar 306 to vibrate up and down as it moves left and right.

[0053] like Figure 6 and Figure 7 As shown, a lifting mechanism 4 is provided on the upper inner side of the cooling box 1;

[0054] The lifting mechanism 4 includes a mounting plate 401. The rear surface of the mounting plate 401 is fixedly connected to the front surface of the fixing plate 307. Guide sleeves 402 are fixedly connected to both sides of the front surface of the mounting plate 401. A vertical rod 403 is slidably connected to the outer wall of the guide sleeve 402. A guide sleeve 404 is fixedly connected to the front surface of the mounting plate 401 between the two guide sleeves 402. A vertical rod 405 is slidably connected to the inside of the guide sleeve 404. A two-way connector 406 is fixedly connected to the top of the vertical rod 405. Two telescopic rods 407 are rotatably connected to the inner side of the two-way connector 406 via a rotating shaft. A rotating connector 408 is rotatably connected to the end of the telescopic rod 407 away from the two-way connector 406 via a rotating shaft. The lower surface of the rotating connector 408 is fixedly connected to the top of the vertical rod 403.

[0055] The bottom ends of the two vertical rods 403 are fixedly connected to a storage net box 412;

[0056] The bottom end of the second vertical rod 405 is fixedly connected to a lower support plate 409. The lower support plate 409 and the bidirectional connector 406 are on opposite sides, and a second spring 410 is fixedly connected to the outside of the second vertical rod 405.

[0057] A pressure block 411 is fixedly connected to the rear surface of the bidirectional connector 406. The rear end of the pressure block 411 extends to the inner side of the guide rail seat 301, and its upper surface is in contact with the inner upper surface of the guide rail seat 301.

[0058] During the heat treatment and cooling process of the screws, the heat-treated screws are evenly poured into the storage mesh box 412. Then, the motor 302 is started, controlling the relative movement of the lead screw sleeve 1 304 and lead screw sleeve 2 305, thereby causing the liquid storage tank 2 and the mounting plate 401 to move closer together, causing the storage mesh box 412 to descend together. By moving the screws and coolant closer together, the time required for the screws to enter the coolant for cooling is saved. Furthermore, as the storage mesh box 412 descends with the mounting plate 401, the lead screw sleeve 1 304... With the increased space above the guide rail seat 301, the pressure block 411 will abut against the inner upper surface of the guide rail seat 301 under the pull and compression reset of the spring 410. At this time, the vertical rod 405 will slide upward along the guide sleeve 404. With the push and pull of the vertical rod 405 and the telescopic rod 407, the vertical rod 403 will descend along the guide sleeve 402, further pushing the storage net box 412 down and driving the screw into the coolant, further shortening the water entry time and achieving the effect of rapid liquid entry and cooling.

[0059] After cooling is complete, the start motor 302 controls the lead screw sleeve 1 304 and lead screw sleeve 2 305 to move in opposite directions. At this time, the liquid storage tank 2 descends, and the storage net box 412 rises together with the mounting plate 401. At the same time, the top of the pressure block 411 is abutted by the inner side of the guide rail seat 301. As the lead screw sleeve 1 304 rises, it drives the mounting plate 401 to rise. The spring 2 410 is stretched, causing the vertical rod 2 405 to rise along the outer side of the vertical rod 2 405. Thus, under the pull of the telescopic rod 407, the storage net box 412 is further lifted, so that the storage net box 412 moves in opposite directions from the liquid storage tank 2 and quickly detaches from the coolant.

[0060] Furthermore, as the lead screw sleeve 304 rises, the storage net box 412 is affected by the reciprocating movement of the crossbar 306, and will move back and forth together, and shake up and down. This allows the screws that have been separated from the coolant to be screened left and right and shaken up and down to dehydrate, which speeds up the separation of the screws from the water and improves the efficiency of subsequent drying of the screws.

[0061] like Figure 1 and Figure 8 As shown, a circulation mechanism 5 is provided on the outside of the cooling box 1;

[0062] The circulation mechanism 5 includes two corrugated condenser pipes 501. The two corrugated condenser pipes 501 are located inside the cooling tank 1 and are fixedly connected to a circulation pipe 502. Protective covers 503 are fixedly connected to the opposite sides of the two corrugated condenser pipes 501. A second circulation pipe 504 is fixedly connected to the opposite ends of the two corrugated condenser pipes 501, located outside the two protective covers 503. The bottom end of the second circulation pipe 504, located at the left end of the first circulation pipe 502, is connected to the interior of the liquid storage tank 2. A circulation pump 505 is fixedly connected to the lower right side of the cooling tank 1, and the input end of the circulation pump 505 is connected to the interior of the liquid storage tank 2. The output end of the circulation pump 505 is fixedly connected to the bottom end of the circulation pipe 504; the bottom end of the protective cover 503 is fixedly connected to the rotating head 506, and the front surface of the rotating head 506 is rotatably connected to the traction rod 507 through a rotating shaft; both sides of the cooling box 1 are fixedly connected to the electric push rod 508, and the top end of the output end of the electric push rod 508 is rotatably connected to the bottom end of the traction rod 507 through a rotating shaft; two limiting rods 509 are fixedly connected to the upper side of the opposite side of the two protective covers 503, and the end of the limiting rod 509 away from the protective cover 503 penetrates into the interior of the cooling box 1 and is slidably connected to the cooling box 1;

[0063] The corrugated condenser tube 501 is flexible and can be contracted;

[0064] Under normal conditions, the electric push rod 508 is in a retracted state. At this time, under the pull of the traction rod 507, the two protective covers 503 will respectively adhere to the two sides of the cooling box 1, causing the corrugated condenser tube 501 to retract. Inside the protective cover 503, it plays a protective role, preventing long-term exposure to the outside, which can easily attract dust and affect the condensation effect.

[0065] When cooling of the liquid is required, the electric push rod 508 is activated to extend it. Under the push of the traction rod 507 and the guidance of the limit rod 509, the two protective covers 503 will move away from the cooling tank 1 and pull the corrugated condenser tube 501 to unfold. Then, the pneumatic circulation pump 505 draws liquid into the storage tank 2. The coolant achieves the effect of circulating condensation in the circulation channel formed by circulation pipe 1 502, circulation pipe 2 504 and corrugated condenser tube 501.

[0066] The embodiments described above are merely illustrative of several implementations of the present invention, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these modifications and improvements all fall within the scope of protection of the present invention. Therefore, the scope of protection of this patent should be determined by the appended claims.

Claims

1. A cooling device for preventing stress deformation after heat treatment of metal parts, comprising a cooling box (1), characterized in that: A liquid storage tank (2) is slidably installed at the bottom of the cooling box (1); A drive mechanism (3) is provided at the rear of the cooling box (1); A lifting mechanism (4) is provided on the upper inner side of the cooling box (1); A circulation mechanism (5) is provided on the outside of the cooling box (1); The drive mechanism (3) includes a guide rail seat (301), a motor (302) is fixedly connected to the upper surface of the guide rail seat (301), the bottom end of the output shaft of the motor (302) is fixedly connected to a two-way lead screw (303) located inside the guide rail seat (301), a lead screw sleeve one (304) and a lead screw sleeve two (305) are threadedly connected to the upper and lower sides of the outer side wall of the two-way lead screw (303), the inside of the lead screw sleeve one (304) is slidably connected to a crossbar (306) located inside the cooling box (1), and both ends of the crossbar (306) are fixedly connected to fixing plates (307); The front surface of the lead screw sleeve (305) is fixedly connected to the rear surface of the liquid storage tank (2); The lifting mechanism (4) includes a mounting plate (401), the rear surface of which is fixedly connected to the front surface of the fixing piece (307). Guide sleeves (402) are fixedly connected to both sides of the front surface of the mounting plate (401). A vertical rod (403) is slidably connected to the outer wall of the guide sleeve (402). A guide sleeve (404) is fixedly connected to the front surface of the mounting plate (401) between the two guide sleeves (402). The inner side of the second sleeve (404) is slidably connected to the second vertical rod (405). The top end of the second vertical rod (405) is fixedly connected to the two-way connector (406). The inner side of the two-way connector (406) is rotatably connected to two telescopic rods (407) via a rotating shaft. The end of the telescopic rod (407) away from the two-way connector (406) is rotatably connected to a rotating connector (408) via a rotating shaft. The lower surface of the rotating connector (408) is fixedly connected to the top end of the first vertical rod (403). The bottom ends of the two vertical rods (403) are fixedly connected to a storage net box (412); Multiple wedge-shaped blocks (7) are fixedly connected to the rear sides of both sides inside the cooling box (1); A shaft seat (308) is fixedly connected to the opposite sides of the two fixed plates (307). A shaft column (309) is fixedly connected to the front surface of the shaft seat (308). A movable rod (310) is sleeved on the outer side of the shaft column (309). A limiting groove (311) is opened inside the movable rod (310) on the inner side of the shaft column (309). A limiting block (312) is fixedly connected to the outer wall of the shaft column (309) and inside the limiting groove (311). The limiting block (312) on the same side is on the same vertical line as a plurality of wedge-shaped blocks (7). Springs (317) are fixedly connected to both sides of the lead screw sleeve (304) on the outer side of the crossbar (306). The opposite ends of the two springs (317) are respectively attached to the opposite sides of the two fixed plates (307).

2. The stress-deformation-preventing cooling device for metal parts after heat treatment according to claim 1, characterized in that: The bottom of the cooling box (1) is fixedly connected to two support legs (6), and the front surface of the cooling box (1) is fitted with a door (10) by means of a hinge.

3. A cooling device for preventing stress deformation after heat treatment of metal parts according to claim 1, characterized in that: The inside of the liquid storage tank (2) is provided with a filter screen (8), and the upper surface of the filter screen (8) is fixedly connected to the front of the inside two sides of the cooling tank (1) with connecting brackets (9).

4. A cooling device for preventing stress deformation after heat treatment of metal parts according to claim 3, characterized in that: The lower inner surface of the lead screw sleeve (304) is integrally formed with multiple tooth blocks (313). The lower surface of the crossbar (306) is provided with tooth grooves (314). The tooth grooves (314) are meshed with the tooth blocks (313). The upper inner surface of the lead screw sleeve (304) is fixedly connected with multiple springs (315). The bottom ends of the multiple springs (315) are fixedly connected with a lower pressure plate (316). The lower surface of the lower pressure plate (316) is in contact with the upper surface of the crossbar (306).

5. A stress-deformation-preventing cooling device for metal parts after heat treatment according to claim 1, characterized in that: The bottom end of the second vertical rod (405) is fixedly connected to a lower support plate (409). The lower support plate (409) and the bidirectional connector (406) are on opposite sides, and a second spring (410) is fixedly connected to the outside of the second vertical rod (405).

6. A stress-deformation-preventing cooling device for metal parts after heat treatment according to claim 1, characterized in that: The rear surface of the bidirectional connector (406) is fixedly connected to a pressure block (411), the rear end of which extends to the inner side of the guide rail seat (301), and the upper surface of which is in contact with the inner upper surface of the guide rail seat (301).

7. A stress-deformation-preventing cooling device for metal parts after heat treatment according to claim 1, characterized in that: The circulation mechanism (5) includes two corrugated condenser tubes (501). The two corrugated condenser tubes (501) are located inside the cooling tank (1) and are fixedly connected to a circulation pipe one (502). Protective covers (503) are fixedly connected to the opposite sides of the two corrugated condenser tubes (501). Circulation pipe two (504) is fixedly connected to the opposite ends of the two corrugated condenser tubes (501) and outside the two protective covers (503). The bottom end of circulation pipe two (504) located at the left end of circulation pipe one (502) is connected to the inside of the liquid storage tank (2). A circulation pump (505) is fixedly connected to the lower right side of the cooling tank (1). The input end of the circulation pump (505) is connected to the inside of the liquid storage tank (2). The output end of the circulating pump (505) is fixedly connected to the bottom end of the second circulating pipe (504); the bottom end of the protective cover (503) is fixedly connected to a rotating head (506), and the front surface of the rotating head (506) is rotatably connected to a traction rod (507) via a rotating shaft; both sides of the cooling box (1) are fixedly connected to electric push rods (508), and the top end of the output end of the electric push rod (508) is rotatably connected to the bottom end of the traction rod (507) via a rotating shaft; two limiting rods (509) are fixedly connected above the opposite sides of the two protective covers (503), and the end of the limiting rod (509) away from the protective cover (503) penetrates into the interior of the cooling box (1) and is slidably connected to the cooling box (1).

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