Cooling device for preventing stress deformation after heat treatment of metal piece

Abstract

The invention discloses a cooling device for preventing stress deformation after heat treatment of a metal piece, and belongs to the field of heat treatment cooling. Comprising a cooling box, and a liquid storage box is slidably mounted at the bottom of the cooling box; a driving mechanism is arranged behind the cooling box; a lifting mechanism is arranged above the inner side of the cooling box; a circulating mechanism is arranged on the outer side of the cooling box; the driving mechanism comprises a guide rail seat, a motor is fixedly connected to the upper surface of the guide rail seat, a two-way lead screw is fixedly connected to the position, located on the inner side of the guide rail seat, of the bottom end of an output shaft of the motor, and a first lead screw sleeve and a second lead screw sleeve are in threaded connection with the upper portion of the outer side wall and the lower portion of the outer side wall of the two-way lead screw correspondingly; the filter screen is located below the liquid storage tank, cooling of the screws entering the liquid storage tank is not affected, after the liquid storage tank descends and when the liquid storage tank ascends, the filter screen is located above the liquid storage tank and is separated from cooling liquid, and at the moment, chippings on the surfaces of the screws subjected to heat treatment and cooling during cooling are conveniently filtered and separated.

Description

Technical Field

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

[0002] Metal surface heat treatment is a process technology aimed at heating metal to a certain temperature and controlling parameters such as heating rate, holding time, and cooling rate, so that the organizational structure and chemical composition of the metal surface layer change, thereby achieving the purpose of improving material properties. There are still some problems with metal surface heat treatment devices. When the temperature is relatively high during metal surface heat treatment, it is easy to cause metal deformation, which is not convenient for quickly cooling and shaping the metal surface, and it is easy to affect the quality of metal parts. The commonly used fastener screws in fields such as automobiles and wind power utilize the physical and mathematical principles of the inclined plane circular rotation and friction of objects to gradually tighten the machine parts. A screw is a general term for fasteners. Screws are indispensable industrial necessities in daily life and play an important role in industry. Screws are an invention shared by people in production and life for thousands of years. 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. A conveyor belt is arranged inside the cooling box. Baffles are arranged on both sides of the conveyor belt. The top surface of the baffle is welded to the top inner wall of the cooling box. One side wall of the baffle is rotatably connected to a first rotating shaft that penetrates through the other baffle and extends outside the cooling box. A plurality of dividing plates are arranged on the outer ring of the first rotating shaft on the side where the two baffles are close to each other. One side of the top surface of the cooling box is provided with a driving motor, and the output end of the driving motor is provided with a second rotating shaft. This heat treatment cooling device for screw production can, by setting a driving motor and dividing plates, etc., achieve the purpose of leveling the piled-up screws on the conveyor belt through the dividing plates, so as to facilitate better cooling of the screws. By setting a water tank, a connecting pipe, a water spray head, etc., the purpose of cooling the screws can be achieved.

[0004] In the above technology, when cooling and reducing the temperature of screws after heat treatment, the screws need to be placed on the conveyor belt for transmission. The heated screws are likely to damage the conveyor belt. And by spraying for cooling, the screws cannot be immersed in the coolant for overall cooling, resulting in poor cooling effect. Moreover, after the bolts are sprayed with coolant, the surface is prone to adhering to the liquid and it is not easy to shake off the liquid, thus increasing the difficulty of subsequent air drying. Therefore, improvements are needed. For this reason, we have proposed a cooling device for preventing stress deformation after heat treatment of metal parts. Summary of the Invention

[0005] Object of the Invention: The object of the present invention is to provide a cooling device that can immerse the entire screw in the coolant for cooling, resulting in better cooling effect; another object of the present invention is to provide a convenient way for the bolt to shake off the coolant.

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

[0007] A driving mechanism is arranged behind the cooling box;

[0008] A lifting mechanism is arranged above the inner side of the cooling box;

[0009] A circulating mechanism is arranged outside the cooling box;

[0010] The driving mechanism includes a guide rail seat, a motor is fixedly connected to the upper surface of the guide rail seat, the bottom end of the output shaft of the motor is fixedly connected to a bidirectional lead screw inside the guide rail seat, a lead screw sleeve one and a lead screw sleeve two are respectively threadedly connected to the upper and lower outer side walls of the bidirectional lead screw, a cross bar is slidably connected to the inside of the cooling box inside the lead screw sleeve one, and fixing pieces are fixedly connected to both ends of the cross bar;

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

[0012] A storage net box is fixedly connected to the bottom ends of the two vertical rods one.

[0013] Furthermore, two support legs are fixedly connected to the bottom of the cooling box, and a box door is rotatably installed on the front surface of the cooling box through a hinge.

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

[0015] Furthermore, a filter screen is arranged inside the liquid storage box, and connecting frames are fixedly connected to the front sides of both sides of the inside of the cooling box respectively at both sides of the upper surface of the filter screen.

[0016] Further, shaft seats are fixedly connected to the opposite sides of the two fixing pieces. A shaft column is fixedly connected to the front surface of the shaft seat. A movable rod is sleeved outside the shaft column. A limiting groove is formed inside the movable rod on the inner side of the shaft column. A limiting block is fixedly connected to the outer side wall of the shaft column and inside the limiting groove. The limiting blocks on the same side and the plurality of wedge-shaped blocking blocks are on the same vertical line. On both sides of the screw rod sleeve one and outside the cross bar, third springs are fixedly connected. The opposite ends of the two third springs are respectively in contact with the opposite sides of the two fixing pieces.

[0017] Further, a plurality of tooth blocks are integrally formed on the lower surface inside the screw rod sleeve one. A tooth groove is formed on the lower surface of the cross bar. The tooth groove is in meshing connection with the tooth blocks. A plurality of first springs are fixedly connected to the upper surface inside the screw rod sleeve one. The bottom ends of the plurality of first springs are commonly fixedly connected to a lower pressing plate. The lower surface of the lower pressing plate is in contact with the upper surface of the cross bar.

[0018] Further, a lower supporting piece is fixedly connected to the bottom end of the vertical rod two. A second spring is fixedly connected to the opposite sides of the lower supporting piece and the two-way joint and outside the vertical rod two.

[0019] Further, a pressure-receiving block is fixedly connected to the rear surface of the two-way joint. The rear end of the pressure-receiving block extends to the inside of the guide rail seat, and the upper surface is in contact with the upper surface inside the guide rail seat.

[0020] Further, the circulation mechanism includes two corrugated condensation pipes. A first circulation pipe is fixedly connected and communicated between the two corrugated condensation pipes inside the cooling box. Protective covers are fixedly connected to the opposite sides of the two corrugated condensation pipes. Second circulation pipes are fixedly connected to the opposite ends of the two corrugated condensation pipes and outside the two protective covers. The bottom end of the second circulation pipe at the left end of the first circulation pipe is communicated with the inside of the liquid storage tank. A circulation pump is fixedly connected to the lower right side of the cooling box. The input end of the circulation pump is communicated with the inside of the liquid storage tank. The output end of the circulation pump is fixedly connected and communicated with the bottom end of the second circulation pipe. A first rotating head is fixedly connected to the bottom end of the protective cover. A traction rod is rotationally connected to the front surface of the first rotating head through a rotating shaft. Electric push rods are fixedly connected to both sides of the cooling box. The top end of the output end of the electric push rod is rotationally connected to the bottom end of the traction rod through a rotating shaft. Two limiting rods are fixedly connected to the upper sides of the opposite sides of the two protective covers. The ends of the limiting rods far away from the protective covers penetrate into the inside of the cooling box and are slidably connected to the cooling box.

[0021] Beneficial effect: The filter is located below the liquid storage tank, which does not affect the cooling of the screws entering the liquid storage tank. After the liquid storage tank is lowered, when the liquid storage tank is raised, the filter 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 screws after heat treatment during cooling;

[0022] When heat treatment cooling is performed, the motor is started to control the relative movement of the screw sleeve 1 and the screw sleeve 2, so that the liquid storage box and the mounting plate are relatively moved closer, and the storage net box is lowered together. The screw and the coolant are relatively moved closer, which saves the movement time of the screw entering the coolant for cooling. In addition, as the mounting plate of the storage net box descends, the spring 2 is compressed and reset, and the vertical rod 2 slides upward along the guide sleeve 2, and cooperates with the pushing and traction of the vertical rod 2 and the telescopic pull rod to make the vertical rod 1 descend along the guide sleeve 1, further pushing the storage net box down to drive the screw into the coolant, further shortening the water entry time and achieving the effect of rapid liquid entry cooling.

[0023] After the cooling is completed, the motor is started to control the screw sleeve 1 and the screw sleeve 2 to move in opposite directions. At this time, the liquid storage tank descends, and the storage net box rises together with the mounting plate. The top of the pressure block is abutted by the inner side of the guide rail seat. As the screw sleeve 1 rises, the mounting plate is driven to rise, and the spring 2 is stretched, so that the vertical rod 2 rises along the outer side of the vertical rod 2, so that the storage net box is further lifted under the pull of the telescopic pull rod, so that the storage net box and the liquid storage tank move in opposite directions and quickly separate from the coolant.

[0024] When the screw sleeve rises, the storage net box is affected by the reciprocating movement of the horizontal bar, and moves back and forth together, and shakes up and down, so that the screws separated from the coolant can be screened left and right and shaken up and down for dehydration, which speeds up the separation of the screws from the water, thereby improving the subsequent drying efficiency of the screws;

[0025] The electric push rod is in the retracted state. At this time, under the pull of the traction rod, the two protective covers will be attached to the two sides of the cooling box respectively, so that the corrugated condenser tube will shrink and play a protective role inside the protective cover to avoid long-term exposure to the outside, which is easy to adhere to dust and affect the condensation effect;

[0026] When the liquid needs to be cooled, the electric push rod is started to extend, the protective cover will move away from the cooling box, and pull the corrugated condenser to unfold. Then the pneumatic circulation pump draws the liquid inside the liquid storage tank, and the coolant is circulated and condensed in the circulation channel composed of circulation pipe 1, circulation pipe 2 and corrugated condenser. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0028] Figure 2 It is a schematic diagram of the structure of the present invention after removing the box door;

[0029] Figure 3 is a schematic structural diagram of the driving mechanism of the present invention;

[0030] Figure 4 is a schematic cross-sectional connection structure diagram of the first lead screw sleeve and the cross bar of the present invention;

[0031] Figure 5 is a schematic cross-sectional connection structure diagram of the fixing piece, the shaft seat, the shaft column and the movable rod of the present invention;

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

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

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

[0035] In the figure: 1. Cooling box; 2. Liquid storage tank; 3. Driving mechanism; 4. Lifting mechanism; 5. Circulation mechanism; 6. Support leg; 7. Wedge-shaped stopper; 8. Filter screen; 9. Connecting frame; 10. Box door; 301. Guide rail seat; 302. Motor; 303. Bidirectional lead screw; 304. First lead screw sleeve; 305. Second lead screw sleeve; 306. Cross bar; 307. Fixing piece; 308. Shaft seat; 309. Shaft column; 310. Movable rod; 311. Limit groove; 312. Limit block; 313. Tooth block; 314. Tooth groove; 315. First spring; 316. Lower pressing plate; 317. Third spring; 401. Mounting plate; 402. First guide sleeve; 403. First vertical rod; 404. Second guide sleeve; 405. Second vertical rod; 406. Bidirectional joint; 407. Telescopic pull rod; 408. Rotating joint; 409. Lower supporting piece; 410. Second spring; 411. Compressed block; 412. Storage net box; 501. Corrugated condensate pipe; 502. First circulation pipe; 503. Protective cover; 504. Second circulation pipe; 505. Circulation pump; 506. First rotating head; 507. Traction rod; 508. Electric push rod; 509. Limit rod. Detailed implementation manners

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

[0037] Embodiment

[0038] As Figure 1 and Figure 2 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] Two support legs 6 are fixedly connected to the bottom of the cooling box 1, and a box door 10 is rotatably installed on the front surface of the cooling box 1 through a hinge;

[0040] A plurality of wedge-shaped stoppers 7 are fixedly connected to the rear sides of both inner sides of the cooling box 1;

[0041] A filter screen 8 is arranged inside the liquid storage tank 2, and connecting frames 9 are fixedly connected to the front sides of both inner sides of the cooling box 1 respectively on both sides of the upper surface of the filter screen 8;

[0042] The liquid storage tank 2 can slide up and down along the bottom of the cooling box 1 for storing cooling liquid. The support legs 6 support the whole device. The filter screen 8 is located below the liquid storage tank 2 and does not affect the screws from entering the interior of the liquid storage tank 2 for cooling. After the liquid storage tank 2 descends and then rises, the filter screen 8 is located above the liquid storage tank 2 and is separated from the cooling liquid. At this time, it is convenient to filter and separate the debris on the surface of the screws after heat treatment cooling during cooling. The box door 10 is used to open or close the cooling box 1, so that the surface of the filter screen 8 inside the cooling box 1 can be cleaned by opening the box door 10;

[0043] A plurality of wedge-shaped stoppers 7 opposite to each other left and right are distributed in a staggered manner.

[0044] As Figure 3 、 Figure 4 and Figure 5 shown, a driving mechanism 3 is arranged at the rear of the cooling box 1;

[0045] The driving 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 bidirectional lead screw 303 inside the guide rail seat 301. A lead screw sleeve one 304 and a lead screw sleeve two 305 are respectively threadedly connected to the upper and lower outer side walls of the bidirectional lead screw 303. A cross bar 306 is slidably connected to the inside of the cooling box 1 inside the lead screw sleeve one 304. Fixed pieces 307 are fixedly connected to both ends of the cross bar 306; The front surface of the lead screw sleeve two 305 is fixedly connected to the rear surface of the liquid storage tank 2;

[0046] Shaft seats 308 are fixedly connected to the opposite sides of the two fixed pieces 307. A shaft column 309 is fixedly connected to the front surface of the shaft seat 308. A movable rod 310 is sleeved outside the shaft column 309. A limiting groove 311 is opened inside the movable rod 310 on the inside of the shaft column 309. A limiting block 312 is fixedly connected to the outer side wall of the shaft column 309 and inside the limiting groove 311. The limiting blocks 312 on the same side and the plurality of wedge-shaped stoppers 7 are on the same vertical line. Springs three 317 are fixedly connected to the outer sides of the cross bar 306 on both sides of the lead screw sleeve one 304. The opposite ends of the two springs three 317 are respectively attached to the opposite sides of the two fixed pieces 307;

[0047] A plurality of tooth blocks 313 are integrally formed on the inner lower surface of the first lead screw sleeve 304. Tooth grooves 314 are formed on the lower surface of the cross bar 306. The tooth grooves 314 are engaged with the tooth blocks 313. A plurality of first springs 315 are fixedly connected to the inner upper surface of the first lead screw sleeve 304. The bottom ends of the plurality of first springs 315 are commonly fixedly connected to a lower pressing plate 316. The lower surface of the lower pressing plate 316 is in contact with the upper surface of the cross bar 306.

[0048] Start the motor 302 to drive the bidirectional lead screw 303 to rotate, which can control the first lead screw sleeve 304 and the second lead screw sleeve 305 to move relatively or away from each other, so that the liquid storage tank 2 can be lifted or lowered by the rise or fall of the second lead screw sleeve 305.

[0049] During the downward movement of the first lead screw sleeve 304, when the movable rod 310 contacts the wedge-shaped blocking blocks 7 on both sides at this time, it is blocked by the parallel plane above the wedge-shaped blocking blocks 7. At this time, the limiting groove 311 and the limiting block 312 will not limit the movable rod 310. The movable rod 310 will rotate slightly along the outside of the shaft column 309. At this time, it is ensured that the cross bar 306 will not move back and forth left and right when descending. When the movable rod 310 rotates slightly and disengages from the wedge-shaped blocking block 7, affected by the self-weight and rotation angle of the movable rod 310 (the rotation angle is less than ninety degrees), it will return to the horizontal state.

[0050] When the first lead screw sleeve 304 rises, when the movable rod 310 contacts the inclined surface below the wedge-shaped blocking block 7, at this time, the limiting groove 311 and the limiting block 312 will limit the rotation of the movable rod 310 along the outside of the shaft column 309. At this time, when the movable rod 310 rises with the first lead screw sleeve 304 and contacts the wedge-shaped blocking block 7, it will be blocked by the wedge-shaped blocking block 7, and then will push the cross bar 306 to slide along the inside of the first lead screw sleeve 304, and after disengaging from the wedge-shaped blocking block 7, it will reset under the pull of the third spring 317.

[0051] And because the plurality of wedge-shaped blocking blocks 7 on both sides are staggered, during the rising process of the cross bar 306, the two movable rods 310 on both sides will be alternately squeezed by the plurality of wedge-shaped blocking blocks 7 on both sides in sequence, thereby pushing the cross bar 306 to move. After the right movable rod 310 is blocked by the right wedge-shaped blocking block 7 and pushes the cross bar 306 to move left, it moves right and resets under the pull of the compressed third spring 317. Then, after the left movable rod 310 is blocked by the left wedge-shaped blocking block 7, it pushes the cross bar 306 to move right, and moves left and resets under the pull of the compressed third spring 317; the left and right reciprocating frequency is faster with the rise.

[0052] During the reciprocating sliding of the cross bar 306 along the inside of the first lead screw sleeve 304, due to the cooperation of the tooth blocks 313 and the tooth grooves 314, and the cooperation of the lower pressing plate 316 and the first springs 315, when the cross bar 306 moves left and right, it will vibrate up and down.

[0053] As Figure 6 and Figure 7 shown, a lifting mechanism 4 is provided above the 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 piece 307. On both sides of the front surface of the mounting plate 401, a first guide sleeve 402 is fixedly connected. A first vertical rod 403 is slidably connected to the outer side wall of the first guide sleeve 402. A second guide sleeve 404 is fixedly connected between the two first guide sleeves 402 on the front surface of the mounting plate 401. A second vertical rod 405 is slidably connected inside the second guide sleeve 404. The top end of the second vertical rod 405 is fixedly connected to a two-way joint 406. Two telescopic pull rods 407 are rotatably connected to the inside of the two-way joint 406 through a rotating shaft. One end of the telescopic pull rod 407 away from the two-way joint 406 is rotatably connected to a rotating joint 408 through a rotating shaft. The lower surface of the rotating joint 408 is fixedly connected to the top end of the first vertical rod 403;

[0055] The bottom ends of the two first vertical rods 403 are commonly 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 piece 409. A second spring 410 is fixedly connected to the opposite sides of the lower support piece 409 and the two-way joint 406 and on the outside of the second vertical rod 405;

[0057] The rear surface of the two-way joint 406 is fixedly connected to a pressure-receiving block 411. The rear end of the pressure-receiving block 411 extends to the inside of the guide rail seat 301, and the upper surface thereof is in contact with the inner upper surface of the guide rail seat 301;

[0058] During the heat treatment cooling process of the screws, the heat-treated screws are evenly poured into the storage net box 412. Then, the motor 302 is started to control the relative movement of the first screw sleeve 304 and the second screw sleeve 305, so that the liquid storage tank 2 and the mounting plate 401 move relatively closer, causing the storage net box 412 to descend together. By the relative movement and approach of the screws and the coolant, the moving time for the screws to enter the coolant for cooling is saved. And during the process of the storage net box 412 descending with the mounting plate 401, the space above the first screw sleeve 304 and the guide rail seat 301 becomes larger. Under the pulling, compression and reset of the second spring 410, since the pressure-receiving block 411 will abut against the inner upper surface of the guide rail seat 301, at this time, the second vertical rod 405 will slide upward along the second guide sleeve 404, and with the pushing and traction of the second vertical rod 405 and the telescopic pull rod 407, the first vertical rod 403 will descend along the first guide sleeve 402, further pushing the storage net box 412 to descend and drive the screws into the coolant, further shortening the water entry time and achieving the effect of rapid liquid cooling;

[0059] After cooling is completed, start the motor 302 to control the screw sleeve one 304 and the screw sleeve two 305 to move away from each other. At this time, the liquid storage tank 2 descends, and while the storage net box 412 rises together with the mounting plate 401, due to the inner side of the guide rail seat 301 abutting against the top of the pressure block 411, when the screw sleeve one 304 rises and drives the mounting plate 401 to rise, the second spring 410 is stretched, causing the second vertical rod 405 to rise along the outside of the second vertical rod 405. Thus, under the pulling of the telescopic pull rod 407, the storage net box 412 is further lifted, causing the storage net box 412 and the liquid storage tank 2 to move away from each other and quickly separate from the coolant;

[0060] Moreover, when the storage net box 412 rises with the screw sleeve one 304, affected by the left and right reciprocating movement of the cross bar 306, it will reciprocate together and vibrate up and down, enabling the screws separated from the coolant to be screened left and right and vibrated up and down for dehydration work, accelerating the separation of the screws from the water, thereby improving the working efficiency of subsequent drying of the screws;

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

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

[0063] The corrugated condenser 501 has elasticity and can contract;

[0064] Under normal conditions, the electric push rod 508 is in a contracted state. At this time, under the pulling of the traction rod 507, the two protective covers 503 will respectively fit on both sides of the cooling box 1, causing the corrugated condensing pipe 501 to contract. Inside the protective cover 503, it plays a protective effect, preventing long-term exposure outside, which is likely to adhere to dust, etc., and affecting the condensing effect;

[0065] When it is necessary to cool the liquid, start the electric push rod 508 to make it extend. 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 box 1 and pull the corrugated condensing pipe 501 to unfold. Then, the pneumatic circulation pump 505 pumps the liquid inside the liquid storage tank 2, and the coolant realizes the effect of circulating condensation in the circulation channel composed of the first circulation pipe 502, the second circulation pipe 504, and the corrugated condensing pipe 501.

[0066] The above-described embodiments only represent several implementation manners of the present invention. The description is relatively specific and detailed, but it should not be construed as a limitation on the scope of the patent of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present invention, several deformations and improvements can still be made, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention should be subject to 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: The bottom of the cooling box (1) is slidably installed with a liquid storage tank (2); A driving mechanism (3) is arranged behind the cooling box (1); A lifting mechanism (4) is arranged above the inner side of the cooling box (1); A circulation mechanism (5) is arranged outside the cooling box (1); The driving mechanism (3) includes a guide rail base (301), the upper surface of the guide rail base (301) is fixedly connected with a motor (302), the bottom end of the output shaft of the motor (302) is fixedly connected with a bidirectional lead screw (303) inside the guide rail base (301), a lead screw sleeve one (304) and a lead screw sleeve two (305) are respectively threadedly connected to the upper outer wall and the lower outer wall of the bidirectional lead screw (303), a cross bar (306) is slidably connected inside the cooling box (1) within the lead screw sleeve one (304), and fixed pieces (307) are fixedly connected to both ends of the cross bar (306); The front surface of the lead screw sleeve two (305) is fixedly connected with the rear surface of the liquid storage tank (2); The lifting mechanism (4) includes a mounting plate (401), the rear surface of the mounting plate (401) is fixedly connected with the front surface of the fixed piece (307), guide sleeve ones (402) are fixedly connected to both sides of the front surface of the mounting plate (401), a vertical rod one (403) is slidably connected to the outer wall of the guide sleeve one (402), a guide sleeve two (404) is fixedly connected between the two guide sleeve ones (402) on the front surface of the mounting plate (401), a vertical rod two (405) is slidably connected inside the guide sleeve two (404), the top end of the vertical rod two (405) is fixedly connected with a bidirectional joint (406), two telescopic pull rods (407) are rotatably connected to the inside of the bidirectional joint (406) through a rotating shaft, one end of the telescopic pull rod (407) away from the bidirectional joint (406) is rotatably connected with a rotating joint (408) through a rotating shaft, and the lower surface of the rotating joint (408) is fixedly connected with the top end of the vertical rod one (403); A storage net box (412) is fixedly connected to the bottom ends of the two vertical rods one (403) together.

2. The cooling device for preventing stress deformation after heat treatment of metal parts according to claim 1, wherein: Two support legs (6) are fixedly connected to the bottom of the cooling box (1), and a box door (10) is rotatably installed on the front surface of the cooling box (1) through a hinge.

3. A cooling device for preventing stress deformation after heat treatment of metal parts according to claim 1, characterized in that: A plurality of wedge-shaped stoppers (7) are fixedly connected to both sides and the rear of the inside of the cooling box (1).

4. A cooling device for preventing stress deformation after heat treatment of metal parts according to claim 1, characterized in that: A filter screen (8) is arranged inside the liquid storage tank (2), and connecting frames (9) are fixedly connected to both sides of the front of the inside of the cooling box (1) respectively on the upper surface of the filter screen (8).

5. A cooling device for preventing stress deformation after heat treatment of metal parts according to claim 3, characterized in that: Axle seats (308) are fixedly connected to the opposite sides of the two fixed pieces (307). An axle post (309) is fixedly connected to the front surface of the axle seat (308). A movable rod (310) is sleeved outside the axle post (309). A limiting groove (311) is formed inside the movable rod (310) and on the inner side of the axle post (309). A limiting block (312) is fixedly connected to the outer side wall of the axle post (309) and on the inner side of the limiting groove (311). The limiting blocks (312) on the same side and the multiple wedge-shaped blocking blocks (7) are on the same vertical line. On both sides of the screw rod sleeve one (304) and outside the cross bar (306), spring three (317) are fixedly connected. The opposite ends of the two spring three (317) are respectively in contact with the opposite sides of the two fixed pieces (307).

6. A cooling device for preventing stress deformation after heat treatment of metal parts according to claim 1, characterized in that: Multiple tooth blocks (313) are integrally formed on the lower surface inside the screw rod sleeve one (304). A tooth groove (314) is formed on the lower surface of the cross bar (306). The tooth groove (314) is meshed with the tooth blocks (313). Multiple spring one (315) are fixedly connected to the upper surface inside the screw rod sleeve one (304). The bottom ends of the multiple spring one (315) are jointly fixedly connected to a lower pressing plate (316). The lower surface of the lower pressing plate (316) is in contact with the upper surface of the cross bar (306).

7. A cooling device for preventing stress deformation after heat treatment of metal parts according to claim 1, characterized in that: A lower supporting piece (409) is fixedly connected to the bottom end of the vertical rod two (405). On the opposite sides of the lower supporting piece (409) and the two-way joint (406), and outside the vertical rod two (405), spring two (410) are fixedly connected.

8. A cooling device for preventing stress deformation after heat treatment of metal parts according to claim 1, characterized in that: A pressure receiving block (411) is fixedly connected to the rear surface of the two-way joint (406). The rear end of the pressure receiving block (411) extends to the inside of the guide rail seat (301), and the upper surface is in contact with the upper surface inside the guide rail seat (301).

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

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