Rapid cooling equipment for high-carbon steel quenching

Abstract

The utility model relates to the technical field of high-carbon steel quenching, in particular to rapid cooling equipment for high-carbon steel quenching, and aims to solve the technical problems that high-carbon steel materials adopting a double-liquid quenching process are transferred from water liquid to oil liquid in a manual turnover manner, the quenching working time is prolonged, and rapid cooling of steel billets is not facilitated. According to the technical scheme, the rapid cooling equipment for high-carbon steel quenching comprises a quenching table, a quenching cavity, a steering unit, a lifting unit, a displacement unit, a grabbing unit and a temperature detection unit; according to the utility model, the quenching table provided with the four quenching cavities which are symmetrically distributed in a cross manner, and oil and water quenching media contained in the quenching table are matched with a series of steering units, lifting units and displacement units, so that a high-carbon steel material can be automatically controlled to be immersed into the proper quenching cavities nearby to finish quenching; the problems that high-carbon steel materials adopting a double-liquid quenching process are transferred from water liquid to oil liquid in a manual turnover mode, the quenching working time is prolonged, and rapid cooling of steel billets is not facilitated are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of high carbon steel quenching, in particular to a high carbon steel quenching and rapid cooling device. Background Art

[0002] After proper heat treatment or cold drawing hardening, high carbon steel has high strength and hardness, high elastic limit and fatigue limit, so it is often used to manufacture various tools such as knives and drills for processing metal materials. Due to the high carbon content of high carbon steel, it is easy to crack during water quenching, so double liquid quenching (water quenching + oil cooling) is often used for quenching.

[0003] High carbon steel quenching is an incomplete quenching. During the quenching process, it is necessary to prevent overheating, control the oxidizing atmosphere, and avoid decarburization. Moreover, rapid cooling is required during quenching to obtain a high-hardness martensitic structure. However, the current quenching of steel billets is done by artificial turnover, placing the material in static water and oil in turn to achieve rapid cooling first and then slow cooling. This turnover process will take a certain amount of time, making it impossible for the steel billet to be immediately placed in the slowly cooling oil after rapid cooling, which has an adverse effect on the rapid cooling requirement of high carbon steel.

[0004] Therefore, in order to address the problem that the double-liquid quenching process for the above-mentioned high-carbon steel cannot be quickly transferred from water to oil through manual turnover, the quenching time is prolonged, which is not conducive to rapid cooling of the steel billet, a device that can autonomously and quickly transfer the quenched steel billet between water and oil can be designed to eliminate manual turnover and improve quenching and cooling efficiency. Utility Model Content

[0005] In order to overcome the problem that the high carbon steel material using the double liquid quenching process is transferred from water liquid to oil liquid through manual turnover, the quenching working time is prolonged, which is not conducive to the rapid cooling of the steel billet.

[0006] The technical scheme of the utility model is: a high-carbon steel quenching and rapid cooling equipment, comprising a quenching table, a quenching cavity, a steering unit, a lifting unit, a displacement unit, a grabbing unit, and a temperature detection unit; the quenching table is truncated and has four quenching cavities symmetrically distributed in a cross, oil and water are respectively contained in the staggered quenching cavities, a steering unit is arranged in the middle of the quenching table, a lifting unit is arranged on the steering unit, a displacement unit is installed on the lifting unit, a grabbing unit for fixing the high-carbon steel workpiece is installed at the output terminal of the displacement unit, a temperature detection unit for monitoring the temperature of the quenching medium material in each quenching cavity is arranged in the middle of the quenching table, and a signal transmission module of the temperature detection unit is connected to the control system of the steering unit, the lifting unit, the displacement unit and the grabbing unit.

[0007] Preferably, the quenching table has four quenching chambers distributed in a cross-symmetrical manner, and the oil and water double liquids used for quenching are alternately contained in different quenching chambers. The grabbing unit can use existing clamps, quenching baskets, hooks and other tools according to different high-carbon steel workpieces. When the temperature detection unit monitors and feeds back the temperature of the medium in the quenching chamber, the steering unit, lifting unit and displacement unit automatically operate to control the workpiece to quickly enter different quenching chambers to complete double-liquid quenching.

[0008] Preferably, four drainage ports connected to the quenching chambers are provided around the outer wall of the quenching table, and a communication channel is provided between two quenching chambers arranged opposite to each other. The two groups of communication channels are at different horizontal heights. The quenching medium material in the quenching chamber can be discharged by opening the drainage port. At the moment of immersing the high-carbon steel workpiece for quenching, the liquid level in the corresponding quenching chamber will rise. Due to the existence of the communication channel, the quenching medium material will flow to the other corresponding quenching chamber to avoid overflow of the quenching medium material.

[0009] Preferably, the steering unit includes a No. 1 motor and an axle seat; the No. 1 motor is installed in the middle of the quenching table, the drive shaft of the No. 1 motor extends upward to the outside of the quenching table and is fixedly connected to the axle seat, and the No. 1 motor drives the axle seat to rotate horizontally, with a rotation angle of 360 degrees, to adjust the high-carbon steel workpiece to reach above different quenching chambers.

[0010] Preferably, the lifting unit includes a cantilever, a No. 2 motor, and a slide; one end of the cantilever is movably connected in the axle seat, the No. 2 motor is installed on one side of the axle seat and the transmission shaft is fixedly connected to one end of the cantilever in the axle seat, and a longitudinally penetrating slide is provided on the cantilever. The No. 2 motor drives the cantilever to flip up and down, and the flipping range is sixty degrees with the horizontal plane, which controls the cantilever to be lifted or lowered to a suitable height, so as to facilitate manual fixation of the high-carbon steel workpiece on the grasping unit.

[0011] Preferably, the displacement unit includes a cylinder, an end plate, and a clamping frame; the cylinder is installed on one side of the upper end of the cantilever close to the shaft seat, the end plate is fixedly installed on the power output element of the cylinder, and a clamping frame that slides up and down is installed in the end plate. The cylinder pushes and pulls the clamping frame to move along the axial direction of the cantilever to control the grabbing unit and the fixed high-carbon steel workpiece to move from outside the quenching table to inside the quenching table.

[0012] Preferably, the grabbing unit includes a slide, a limit frame, a pulley, a No. 3 motor, and a grab hook; the slide is slidably connected in the slide groove, a rotatable I-shaped limit frame is installed at the upper end of the slide, a pulley is arranged at the lower end of the slide, and the No. 3 motor is installed on the side wall of the slide, one end of the pulley is fixedly connected to the power output element of the No. 3 motor, a chain is wound on the pulley and a grab hook adapted to the high-carbon steel workpiece is installed at the lower end of the chain, the slide is inserted into the slide groove from bottom to top, and then the limit frame is rotated to prevent the slide from falling, and then the fixing frame is buckled on the limit frame so that the slide can be driven by the cylinder, and the No. 3 motor drives the pulley to rotate, so that the chain is retracted or lowered, and the workpiece fixed by the grab hook is immersed in the liquid material in the quenching chamber or the workpiece is pulled out of the liquid material, the grab hook is a fixed tooling adapted to the workpiece, and different tooling structures are selected according to the different shapes and sizes of the workpieces. In addition to the grab hook, this tooling structure can also be a clamp, a quenching basket, a hook, etc.

[0013] Preferably, the temperature detection unit includes a carrying platform, a bracket, and a temperature sensor; the carrying platform is fixedly installed in the middle of the upper end of the quenching platform, and four groups of brackets corresponding to the positions of the quenching chambers are fixedly installed around the outer wall of the carrying platform. A temperature sensor with a detection probe extending into the quenching medium material is installed at the end of the bracket. The temperature sensor detects the temperature of the quenching liquid material in the quenching chamber at the corresponding position, and sends the temperature information to the control system, so that the workpiece can automatically perform quenching operations in quenching chambers with suitable temperatures and different positions.

[0014] Beneficial effects of the utility model:

[0015] 1. The quenching table with four cross-symmetrically distributed quenching chambers and the oil and water quenching media contained therein, in combination with a series of steering units, lifting units and displacement units, can automatically control the high-carbon steel material to be immersed in a suitable quenching chamber nearby to complete quenching according to the quenching situation. This double-liquid quenching device does not require manual turnover of materials, and the quenching is more efficient. It also helps the high-carbon steel to cool down continuously in a short time. The temperature detection unit is used to measure the medium temperature in each quenching chamber and feed it back to each control system to automatically select the quenching chamber with the appropriate temperature for quenching, thereby ensuring the quenching quality of the high-carbon steel;

[0016] 2. The quenching chambers arranged opposite to each other are filled with the same quenching medium material, and the medium is circulated through the communication channel. During immersion quenching, the quenching liquid in a single quenching chamber can be effectively prevented from overflowing. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 What is shown is a first three-dimensional structural schematic diagram of the high-carbon steel quenching and rapid cooling equipment of the utility model;

[0018] Figure 2 The second three-dimensional structure schematic diagram of the high-carbon steel quenching and rapid cooling equipment of the utility model is shown;

[0019] Figure 3 The three-dimensional structure diagram of the steering unit, lifting unit and displacement unit of the high-carbon steel quenching rapid cooling equipment of the utility model is shown;

[0020] Figure 4 What is shown is a three-dimensional structure schematic diagram of a grabbing unit of a high-carbon steel quenching and rapid cooling equipment of the utility model;

[0021] Figure 5 The three-dimensional structure diagram of the quenching table assembly of the high-carbon steel quenching rapid cooling equipment of the utility model is shown;

[0022] Figure 6 What is shown is a schematic diagram of the internal three-dimensional structure of the quenching table of the high-carbon steel quenching and rapid cooling equipment of the utility model.

[0023] Explanation of the reference numerals: 1. quenching table; 2. quenching chamber; 3. steering unit; 4. lifting unit; 5. displacement unit; 6. grabbing unit; 7. temperature detection unit; 8. drain port; 9. communication channel; 301. motor No. 1; 302. axle seat; 401. cantilever; 402. motor No. 2; 403. slide; 501. cylinder; 502. end plate; 503. clamping frame; 601. slide table; 602. limit frame; 603. pulley; 604. motor No. 3; 605. grab hook; 701. loading platform; 702. bracket; 703. temperature sensor. DETAILED DESCRIPTION

[0024] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0025] See also Figure 1-2The utility model provides an embodiment: a high-carbon steel quenching and rapid cooling equipment, including a quenching table 1, a quenching cavity 2, a steering unit 3, a lifting unit 4, a displacement unit 5, a grabbing unit 6, and a temperature detection unit 7; the quenching table 1 is a truncated cone and has four quenching cavities 2 distributed in a cross-symmetric manner, and oil and water are respectively contained in the staggered quenching cavities 2. A steering unit 3 is arranged in the middle of the quenching table 1, a lifting unit 4 is arranged on the steering unit 3, and a displacement unit 5 is installed on the lifting unit 4. The output terminal of the displacement unit 5 is installed with a grabbing unit 6 for fixing the high-carbon steel workpiece, and a quenching medium material in each quenching cavity 2 is arranged in the middle of the quenching table 1. The temperature detection unit 7 for temperature monitoring and the signal transmission module of the temperature detection unit 7 are connected to the control systems of the steering unit 3, the lifting unit 4, the displacement unit 5 and the grabbing unit 6. The quenching table 1 has four quenching chambers 2 distributed in a cross-symmetric manner, and the oil and water double liquids used for quenching are respectively and alternately contained in different quenching chambers 2. The grabbing unit 6 can use existing clamps, quenching baskets, hooks and other tools according to different high-carbon steel workpieces. When the temperature detection unit 7 monitors and feeds back the temperature of the medium in the quenching chamber 2, the steering unit 3, the lifting unit 4 and the displacement unit 5 automatically operate to control the workpiece to quickly enter different quenching chambers 2 to complete double-liquid quenching.

[0026] See also Figure 5-6 In this embodiment, four drainage ports 8 are provided around the outer wall of the quenching table 1, which are respectively connected to the quenching chambers 2. A communication channel 9 is provided between two quenching chambers 2 which are arranged opposite to each other. The two groups of communication channels 9 are at different horizontal heights. The temperature detection unit 7 includes a mounting platform 701, a bracket 702, and a temperature sensor 703. The mounting platform 701 is fixedly installed in the middle of the upper end of the quenching table 1. Four groups of brackets 702 corresponding to the positions of the quenching chambers 2 are fixedly installed around the outer wall of the mounting platform 701. A detection probe is installed at the end of the bracket 702 to extend into the quenching medium. The temperature sensor 703 in the material can discharge the quenching medium material in the quenching chamber 2 by opening the drain port 8. At the moment of immersing the high-carbon steel workpiece for quenching, the liquid level in the corresponding quenching chamber 2 will rise. Due to the existence of the communication channel 9, the quenching medium material will flow to the corresponding other quenching chamber 2 to avoid overflow of the quenching medium material. The temperature sensor 703 detects the temperature of the quenching liquid material in the quenching chamber 2 at the corresponding position and sends the temperature information to the control system, so that the workpiece can automatically perform quenching operations in the quenching chamber 2 with suitable temperature and different position.

[0027] See also Figure 3-4In this embodiment, the steering unit 3 includes a No. 1 motor 301 and an axle seat 302; the No. 1 motor 301 is installed in the middle of the quenching table 1, the transmission shaft of the No. 1 motor 301 extends upward to the outside of the quenching table 1 and is fixedly connected to the axle seat 302, the lifting unit 4 includes a cantilever 401, a No. 2 motor 402, and a slide 403; one end of the cantilever 401 is movably connected in the axle seat 302, the No. 2 motor 402 is installed on one side of the axle seat 302 and the transmission shaft is fixedly connected to one end of the cantilever 401 in the axle seat 302, and a longitudinally penetrating slide 403 is provided on the cantilever 401, and the displacement unit 5 includes a cylinder 501, an end plate 502, and a clamping frame 503; the cylinder 501 is installed on the upper end of the cantilever 401 near the shaft seat 302, the end plate 502 is fixedly installed on the power output element of the cylinder 501, and a clamping frame 503 that slides up and down is installed in the end plate 502. The grabbing unit 6 includes a slide 601, a limit frame 602, a pulley 603, a third motor 604, and a grab hook 605; the slide 601 is slidably connected in the slide slot 403, a rotating and movable one-line limit frame 602 is installed on the upper end of the slide 601, a pulley 603 is arranged at the lower end of the slide 601, and the slide 601 is provided with a plurality of pulleys. A third motor 604 is installed on the side wall of 01, one end of the pulley 603 is fixedly connected to the power output element of the third motor 604, a chain is wound on the pulley 603 and a grab hook 605 adapted to the high-carbon steel workpiece is installed at the lower end of the chain, the first motor 301 drives the shaft seat 302 to rotate horizontally, the rotation angle is 360 degrees, and the high-carbon steel workpiece is adjusted to arrive above different quenching chambers 2, the second motor 402 drives the cantilever 401 to flip up and down, the flipping interval is 60 degrees with the horizontal plane, and the cantilever 401 is controlled to be lifted or lowered to a suitable height, which is convenient for the high-carbon steel workpiece to be fixed manually. Fixed on the grabbing unit 6, the cylinder 501 pushes and pulls the fixing frame 503 to move axially along the cantilever 401, controls the grabbing unit 6 and the fixed high-carbon steel workpiece to move from outside the quenching table 1 to inside the quenching table 1, and the No. 3 motor 604 drives the pulley 603 to rotate, so that the chain is retracted or lowered, and the workpiece fixed by the grab hook 605 is immersed in the liquid material in the quenching chamber 2 or the workpiece is pulled out of the liquid material. The grab hook 605 is a fixed tooling adapted to the workpiece. Different tooling structures are selected according to the different shapes and sizes of the workpieces. In addition to the grab hook 605, this tooling structure can also be a clamp, a quenching basket, a hook, etc.

[0028] When working, the temperature sensor 703 detects the temperature of the quenching liquid material in different quenching chambers 2 in real time and sends the temperature data to the industrial computer, which compares and selects the different temperatures and the preset optimal quenching temperature, controls the steering unit 3, the lifting unit 4, the displacement unit 5 and the grabbing unit 6 to operate in sequence, and selects to send the workpiece into the quenching chamber 2 at the optimal temperature;

[0029] The user first fixes the high carbon steel workpiece on the grab hook 605 or other suitable grabbing tooling, then starts the second motor 402 to drive the cantilever 401 to flip upward, lift the workpiece upward, and then starts the cylinder 501 to pull the slide 601 and the workpiece to the top of the quenching table 1. Then, the industrial computer controls the first motor 301 to drive the shaft seat 302 to rotate horizontally, and rotate the workpiece to the top of the quenching chamber 2 filled with water at a suitable quenching temperature;

[0030] Start the third motor 604 to drive the pulley 603 to rotate, lower the chain, and immerse the workpiece fixed by the grab hook 605 into the water in the quenching chamber 2 for quenching;

[0031] After the first quenching is completed, the third motor 604 drives the pulley 603 to rotate and retract the chain, and pulls the workpiece fixed by the grab hook 605 out of the quenching chamber 2, and then the industrial computer controls the first motor 301 to drive the shaft seat 302 to rotate horizontally by 90 degrees, and rotates the workpiece to the top of the quenching chamber 2 filled with oil with a suitable quenching temperature;

[0032] The third motor 604 is started to drive the pulley 603 to rotate, and the chain is lowered to immerse the workpiece fixed by the grab hook 605 into the oil in the quenching chamber 2 for quenching.

[0033] Through the above steps, the quenching table 1 with four cross-symmetrically distributed quenching chambers 2 and the oil and water quenching media contained therein, together with a series of steering units 3, lifting units 4 and displacement units 5, can automatically control the high-carbon steel material to be immersed in a suitable quenching chamber 2 nearby to complete quenching according to the quenching situation. This double-liquid quenching device does not require manual turnover of materials, and the quenching is more efficient. It also helps to continuously cool down the high-carbon steel in a short time. The temperature detection unit 7 is used to measure the medium temperature in each quenching chamber 2 and feed it back to each control system to automatically select the quenching chamber 2 with a suitable temperature for quenching, thereby ensuring the quenching quality of the high-carbon steel, so as to solve the problem that the high-carbon steel material using the double-liquid quenching process is transferred from the water liquid to the oil liquid through manual turnover, and the quenching working time is prolonged, which is not conducive to the rapid cooling of the steel billet.

[0034] The embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge scope of those skilled in the art without departing from the purpose of the present invention.

Claims

1. A high carbon steel quenching and rapid cooling device, comprising a quenching table (1); characterized in that: The invention also comprises a quenching chamber (2), a steering unit (3), a lifting unit (4), a displacement unit (5), a grabbing unit (6) and a temperature detection unit (7); the quenching table (1) is truncated and has four quenching chambers (2) arranged in a cross-symmetrical manner; oil and water are respectively contained in the interlaced quenching chambers (2); a steering unit (3) is arranged in the middle of the quenching table (1); a lifting unit (4) is arranged on the steering unit (3); a displacement unit (5) is installed on the lifting unit (4); a grabbing unit (6) for fixing a high-carbon steel workpiece is installed at the output terminal of the displacement unit (5); a temperature detection unit (7) for monitoring the temperature of the quenching medium material in each quenching chamber (2) is arranged in the middle of the quenching table (1); a signal transmission module of the temperature detection unit (7) is connected to the control system of the steering unit (3), the lifting unit (4), the displacement unit (5) and the grabbing unit (6).

2. The high carbon steel quenching and rapid cooling equipment according to claim 1 is characterized in that: Four liquid discharge ports (8) are provided around the outer wall of the quenching table (1) and are respectively connected to the quenching chambers (2). A communication channel (9) is provided between two quenching chambers (2) arranged opposite to each other, and the two groups of communication channels (9) are at different levels.

3. The high carbon steel quenching and rapid cooling equipment according to claim 1 is characterized in that: The steering unit (3) comprises a first motor (301) and an axle seat (302); the first motor (301) is installed in the middle of the quenching table (1), and the transmission shaft of the first motor (301) extends upward to the outside of the quenching table (1) and is fixedly connected to the axle seat (302).

4. The high carbon steel quenching and rapid cooling equipment according to claim 3 is characterized in that: The lifting unit (4) comprises a cantilever (401), a second motor (402), and a slide groove (403); one end of the cantilever (401) is movably connected in the shaft seat (302), the second motor (402) is installed on one side of the shaft seat (302), and the transmission shaft is fixedly connected to one end of the cantilever (401) in the shaft seat (302), and a longitudinally penetrating slide groove (403) is provided on the cantilever (401).

5. The high carbon steel quenching and rapid cooling equipment according to claim 4 is characterized in that: The displacement unit (5) comprises a cylinder (501), an end plate (502), and a clamping frame (503); the cylinder (501) is mounted on a side of the upper end of the cantilever (401) close to the shaft seat (302), the end plate (502) is fixedly mounted on a power output element of the cylinder (501), and a clamping frame (503) is mounted in the end plate (502) and slides up and down.

6. The high carbon steel quenching and rapid cooling equipment according to claim 5, characterized in that: The grabbing unit (6) comprises a slide (601), a limit frame (602), a pulley (603), a third motor (604), and a grab hook (605); the slide (601) is slidably connected in the slide groove (403), a rotatable I-shaped limit frame (602) is installed on the upper end of the slide (601), a pulley (603) is arranged on the lower end of the slide (601), a third motor (604) is installed on the side wall of the slide (601), one end of the pulley (603) is fixedly connected to the power output element of the third motor (604), a chain is wound on the pulley (603), and a grab hook (605) adapted to the high-carbon steel workpiece is installed at the lower end of the chain.

7. The high carbon steel quenching and rapid cooling equipment according to claim 1 is characterized by: The temperature detection unit (7) comprises a mounting platform (701), a bracket (702), and a temperature sensor (703); the mounting platform (701) is fixedly installed in the middle of the upper end of the quenching platform (1); four groups of brackets (702) corresponding to the positions of the quenching chamber (2) are fixedly installed around the outer wall of the mounting platform (701); and a temperature sensor (703) is installed at the end of the bracket (702) with a detection probe extending into the quenching medium material.

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