Quenching device for bearing machining

Abstract

The invention discloses a quenching device for bearing machining. The quenching device comprises a quenching box, quenching liquid is placed in the quenching box, a rotating frame is installed in the quenching box, the quenching box is installed on one side of electromagnetic heating equipment, an electromagnetic heating coil is arranged on the electromagnetic heating equipment, and a dispersion quenching mechanism is installed in the quenching box; and the dispersion quenching mechanism comprises a lifting rod, a rotating rod, a pushing frame and a driving frame. The bearing accessory quenching device has the beneficial effects that the quenching efficiency of bearing accessories is improved by increasing the number of electromagnetic heating coils, after heating is completed, the bearing accessories enter quenching liquid through a pushing frame, in the process, rotating rods on the two sides of a lifting rod are made to rotate outwards, then the distance between the bearing accessories can be increased, and the quenching efficiency of the bearing accessories is improved. And then the bearing accessories enter the quenching liquid to be quenched, so that the mutual influence between the bearing accessories can be reduced, the quenching effect can be guaranteed, and the quality of the bearing is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of bearing processing equipment, and more specifically, to a quenching device for bearing processing. Background Art

[0002] In order to ensure the strength of the bearing, it is necessary to quench multiple components of the bearing. When heating the bearing components, electromagnetic coils are generally used for heating, and then they are placed in a quenching liquid for quenching.

[0003] In the prior art, when heating the bearing, only one bearing fitting can be heated at a time, and the working efficiency is relatively low. Although the working efficiency can be improved by increasing the number of electromagnetic coils, due to the limitation of the electromagnetic heating equipment, the distance between multiple electromagnetic coils is relatively close, and thus the distance between the bearing fittings will be relatively close. Since the bearing fittings are at a relatively high temperature after heating, when multiple bearing fittings enter the quenching liquid for quenching, if the distance is relatively close, the temperature of the quenching liquid near the bearing fittings will rapidly increase, and the adjacent bearing fittings will affect each other, thereby affecting the quenching effect of the bearing fittings. Summary of the Invention

[0004] The purpose of the present invention is to solve the above problems and design a quenching device for bearing processing.

[0005] To achieve the above object, the technical solution of the present invention is a quenching device for bearing processing, including a quenching tank, in which a quenching liquid is placed, a rotating frame is installed in the quenching tank, the quenching tank is installed on one side of an electromagnetic heating device, an electromagnetic heating coil is provided on the electromagnetic heating device, and a dispersion quenching mechanism is installed in the quenching tank; The dispersion quenching mechanism includes a plurality of lifting rods installed on the rotating frame, rotating rods are provided on both sides of the lifting rods, a pushing frame is installed in the quenching tank, the pushing frame can drive the lifting rods and the rotating rods to move up and down, a driving frame is installed in the quenching tank, the driving frame can make the rotating rods rotate to both sides, and a loading station, a heating station, a quenching station, and an unloading station are provided in the quenching tank, and the rotating frame can drive the lifting rods and the rotating rods to sequentially rotate to the above-mentioned multiple stations.

[0006] Further, the rotating frame includes a support table installed at the lower end in the quenching tank, and the rotating frame includes a servo motor installed on the upper end of the support table, and a rotating table is installed at the rotating end of the servo motor.

[0007] Further, one end of the lifting rod extends above the rotating table. The end of the lifting rod above the rotating table is provided with a first square transmission hole. A first square rod is arranged in the first square transmission hole. The lower end of the first square rod is installed on the upper surface of the rotating table. The end of the rotating rod above the rotating table is provided with a second square transmission hole. A second square rod is arranged in the second square transmission hole. A transmission shaft is installed at the lower end of the second square rod. A first rolling bearing is installed at the lower end of the transmission shaft. The lower end of the first rolling bearing is installed on the upper surface of the rotating table. A limiting frame is installed at the ends of the lifting rod and the rotating rod away from the rotating table. The bearing to be quenched can be sleeved outside the limiting frame. There are three electromagnetic heating coils, and the electromagnetic heating coils are located at the heating station. When the pushing frame pushes the lifting rod and the rotating rod upward, the bearing can enter the electromagnetic heating coils.

[0008] Further, the driving frame includes a first gear located on one side of the lower end of the first square rod. The first gear is installed on the transmission shaft on one side of the first square rod. The first gear meshes with a moving rack. A spring telescopic rod is installed on one side surface of the moving rack. The lower end of the spring telescopic rod is installed on the upper surface of the rotating table. A pulley is installed at one end of the moving rack. A limiting groove is opened at the lower end of the moving rack. A limiting block is arranged in the limiting groove. The lower end of the limiting block is installed on the upper surface of the rotating table. A circular ring limiting table is arranged outside the rotating table above. One end of the pulley abuts against the inner surface of the circular ring limiting table. An arc-shaped table is installed on the inner surface of the circular ring limiting table. A sector table is installed at one end of the arc-shaped table. The pulley can move to the sector table through the inclined surface of the arc-shaped table and push the moving rack to one side. The circular ring limiting table is installed on the lower surface of the inner part of the quenching tank through a plurality of fixing rods. The second square rods on both sides of the first square rod are connected through a transmission mechanism. When the lifting rod and the rotating rod rotate from the heating station to the quenching station, the pulley can contact the arc-shaped table.

[0009] Further, the transmission mechanism includes a transmission rod installed at the upper end of the second square rod. A second gear is installed at the upper end of the transmission rod. The second gears on both sides above the first square rod are meshed.

[0010] Further, one lifting rod and two rotating rods form a set of holding rods, and the second gears on adjacent sets of holding rods are not at the same height.

[0011] Further, the pushing frame includes a circular ring lifting table located outside the rotating table. A plurality of electric telescopic rods are installed at the lower end of the circular ring lifting table. The fixed ends of the electric telescopic rods are installed on the inner surface of the quenching tank. A notch is opened on one side of the circular ring lifting table, and the notch is located at the quenching station. A circular ring holding table is arranged outside the rotating table. The circular ring holding table is installed in the quenching tank through a plurality of support rods.

[0012] Further, a positioning rod is installed on the lower surface of the inner part of the quenching tank, and the positioning rod is located at the heating station. When the lifting rod and the rotating rod rotate to the heating station, the positioning rod can intercept and position one rotating rod.

[0013] Furthermore, the limiting frame includes a limiting rod installed on the side of the lifting rod and the rotating rod away from the rotating table. A placing plate is installed on the limiting rod, and the bearing to be quenched is placed on the placing plate and sleeved outside the limiting rod.

[0014] Furthermore, a second rolling bearing is installed on the side of the lifting rod and the rotating rod away from the rotating table, and the lower end of the limiting rod extends into the second rolling bearing.

[0015] Advantages of the present invention: By increasing the number of electromagnetic heating coils, the quenching efficiency of bearing parts is improved. After heating is completed, the bearing parts are pushed into the quenching liquid by the pushing frame. During this process, the rotating rods on both sides of the lifting rod rotate outward, thereby increasing the distance between the bearing parts. Then, the bearing parts enter the quenching liquid for quenching, which can reduce the mutual influence between the bearing parts. The bearing parts can be rotated in the quenching liquid by the driving frame, so that the bearing parts heat a part of the quenching liquid and then move, ensuring that the temperature of the quenching liquid around the bearing parts is not too high, thereby ensuring the quenching effect and improving the quality of the bearing. Description of the Drawings

[0016] Figure 1 is a schematic structural diagram of a quenching device for bearing processing according to the present invention, removing the quenching tank and the second gear; Figure 2 is Figure 1 a partial enlarged view of part A in Figure 3 is Figure 1 a partial enlarged view of part B in Figure 4 is Figure 1 a partial enlarged view of part C in Figure 5 is a schematic cross-sectional view of a quenching device for bearing processing according to the present invention in the side view direction; Figure 6 is Figure 5 a partial enlarged view of part D in Figure 7 is a top view of a quenching device for bearing processing according to the present invention; Figure 8 is a schematic cross-sectional view of a quenching device for bearing processing according to the present invention in the top view direction; Figure 9 is Figure 8 a partial enlarged view of part E in Figure 10 is a schematic diagram of the positional relationship between the moving rack and the limiting block according to the present invention; In the figure, 1 is a quenching box; 2 is a rotating frame; 3 is a lifting rod; 4 is a rotating rod; 5 is a pushing frame; 6 is a driving frame; 7 is a loading station; 8 is a heating station; 9 is a quenching station; 10 is a unloading station; 11 is a support table; 12 is a servo motor; 13 is a rotating table; 14 is a first square transmission hole; 15 is a first square rod; 16 is a second square transmission hole; 17 is a second square rod; 18 is a transmission shaft; 19 is a first rolling bearing; 20 is a limiting frame; 21 is a first gear; 22 is a moving rack; 23 is a spring telescopic rod; 24 is a pulley; 25 is a limiting groove; 26 is a limiting block; 27 is a circular ring limiting table; 28 is an arc table; 29 is a sector table; 30 is a fixed rod; 31 is a transmission rod; 32 is a second gear; 33 is a circular ring lifting table; 34 is an electric telescopic rod; 35 is a circular ring placing table; 36 is a support rod; 37 is a positioning rod; 38 is a limiting rod; 39 is a placing plate; 40 is a second rolling bearing. Detailed implementation manners

[0017] To make the objectives, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Apparently, the described embodiments are some, but not all, of the embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0018] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present invention. In addition, in the description of the present invention, "a plurality of" means two or more unless otherwise specifically defined.

[0019] The present invention provides as Figures 1 - 10A quenching device for bearing processing as shown includes a quenching tank 1. Quenching liquid is placed in the quenching tank 1. A rotating frame 2 is installed in the quenching tank 1. The quenching tank 1 is installed on one side of an electromagnetic heating device. An electromagnetic heating coil is provided on the electromagnetic heating device. A dispersion quenching mechanism is installed in the quenching tank 1. The dispersion quenching mechanism includes a plurality of lifting rods 3 installed on the rotating frame 2. Rotating rods 4 are provided on both sides of the lifting rods 3. A pushing frame 5 is installed in the quenching tank 1. The pushing frame 5 can drive the lifting rods 3 and the rotating rods 4 to move up and down. A driving frame 6 is installed in the quenching tank 1. The driving frame 6 can make the rotating rods 4 rotate to both sides. A loading station 7, a heating station 8, a quenching station 9, and an unloading station 10 are provided in the quenching tank 1. The rotating frame 2 can drive the lifting rods 3 and the rotating rods 4 to rotate to the above-mentioned multiple stations in sequence.

[0020] The process of quenching the bearing by this device is as follows: The rotating frame 2 can drive the lifting rods 3 and the rotating rods 4 to move between multiple stations. When the lifting rods 3 and the rotating rods 4 move to the loading station, the bearing parts are placed on the lifting rods 3 and the rotating rods 4 by the staff. Then, the bearing parts are moved to the heating station 8 by the rotating frame 2. The pushing frame 5 can push the lifting rods 3 and the rotating rods 4 upward, so that the bearing parts can enter the inner side of the electromagnetic heating coil and the bearing parts can be heated. After heating, the pushing frame 5 can make the lifting rods 3 and the rotating rods 4 move downward, so that the bearing parts move below the electromagnetic heating coil. Then, the rotating frame 2 drives the bearing parts to move to the quenching station 9. During this process, the driving frame 6 can drive the rotating rods 4 on both sides of the lifting rods 3 to rotate outward, so as to increase the distance between the bearing parts and facilitate quenching the bearing parts. After quenching, the rotating frame 2 moves the bearing parts to the unloading station 10. The bearing parts can be taken off by the staff. During this process, the driving frame 6 can make the rotating rods 4 rotate back to the original position. By installing a plurality of lifting rods 3 and rotating rods 4 on the rotating frame 2, multiple stations can process the bearing parts simultaneously, which can improve work efficiency.

[0021] Refer to the attached Figure 5 The rotating frame 2 includes a support platform 11 installed at the lower end inside the quenching tank 1. The rotating frame 2 includes a servo motor 12 installed at the upper end of the support platform 11. A rotating table 13 is installed at the rotating end of the servo motor 12. The servo motor 12 can drive the rotating table 13 to rotate. The lifting rods 3 and the rotating rods 4 are installed on the rotating table 13, and the lifting rods 3 and the rotating rods 4 can move along with the rotation of the rotating table 13.

[0022] Refer to the attached Figure 1 of the instruction manual, Figure 2 of the instruction manual, Figure 3 of the instruction manual, Figure 4 of the instruction manual, Figure 5 of the instruction manual,Figure 8 and the appended description Figure 9 One end of the lifting rod 3 extends above the rotating table 13. A first square transmission hole 14 is formed at the end of the lifting rod 3 located above the rotating table 13. A first square rod 15 is arranged in the first square transmission hole 14. The lower end of the first square rod 15 is installed on the upper surface of the rotating table 13. A second square transmission hole 16 is formed at the end of the rotating rod 4 located above the rotating table 13. A second square rod 17 is arranged in the second square transmission hole 16. A transmission shaft 18 is installed at the lower end of the second square rod 17. A first rolling bearing 19 is installed at the lower end of the transmission shaft 18. The lower end of the first rolling bearing 19 is installed on the upper surface of the rotating table 13. A limiting frame 20 is installed at the ends of the lifting rod 3 and the rotating rod 4 far from the rotating table 13. The bearing to be quenched can be sleeved outside the limiting frame 20. There are three electromagnetic heating coils, and the electromagnetic heating coils are located at the heating station 8. When the pushing frame 5 pushes the lifting rod 3 and the rotating rod 4 upward, the bearing can enter into the electromagnetic heating coils.

[0023] The process by which the rotating table 13 drives the lifting rod 3 and the rotating rod 4 to rotate is as follows: When the rotating table 13 rotates, it can drive the first square rod 15 to rotate. Through the fit between the first square rod 15 and the first square transmission hole 14, the lifting rod 3 can follow the rotation of the rotating table 13, and the lifting rod 3 can also move up and down along the first square rod 15 under the action of the pushing frame 5. When the rotating table 13 rotates, it can drive the second square rod 17 to rotate through the first rolling bearing 19 and the transmission shaft 18. Through the fit between the second square rod 17 and the second square transmission hole 16, the rotating rod 4 can follow the rotation of the rotating table 13, and the rotating rod 4 can also move up and down along the second square rod 17 under the action of the pushing frame 5. Under the action of the driving frame 6, the rotating rod 4 can also rotate around the transmission shaft 18. The bearing fittings can be placed on the limiting frame 20, and thus the bearing fittings can follow the rotation of the lifting rod 3 and the rotating rod 4.

[0024] Refer to the appended description Figure 1 、the appended description Figure 2 、the appended description Figure 3 、the appended description Figure 8 、the appended description Figure 9 and the appended description Figure 10, the driving frame 6 includes a first gear 21 located at one side of the lower end of the first square rod 15. The first gear 21 is mounted on a transmission shaft 18 on one side of the first square rod 15. The first gear 21 meshes with a moving rack 22. A spring telescopic rod 23 is mounted on one side surface of the moving rack 22. The lower end of the spring telescopic rod 23 is mounted on the upper surface of the rotating table 13. A pulley 24 is mounted at one end of the moving rack 22. A limiting groove 25 is formed at the lower end of the moving rack 22. A limiting block 26 is arranged in the limiting groove 25. The lower end of the limiting block 26 is mounted on the upper surface of the rotating table 13. An annular limiting platform 27 is arranged outside the upper part of the rotating table 13. One end of the pulley 24 abuts against the inner surface of the annular limiting platform 27. An arc-shaped platform 28 is mounted on the inner surface of the annular limiting platform 27. A sector platform 29 is mounted at one end of the arc-shaped platform 28. The pulley 24 can move to the sector platform 29 through the inclined surface of the arc-shaped platform 28 and push the moving rack 22 to one side. The annular limiting platform 27 is mounted on the lower inner surface of the quenching tank 1 through a plurality of fixing rods 30. The second square rods 17 on both sides of the first square rod 15 are connected through a transmission mechanism. When the lifting rod 3 and the rotating rod 4 rotate from the heating station 8 to the quenching station 9, the pulley 24 can be in contact with the arc-shaped platform 28.

[0025] The process of the driving frame 6 driving the rotating rod 4 to rotate is as follows: Under normal conditions, one end of the pulley 24 abuts against the inner side of the annular limiting platform 27, and the rotating rod 4 is in the initial position. At this time, the rotating rod 4 and the lifting rod 3 are in a parallel state. When the rotating table 13 drives the rotating rod 4 to move, it can drive the spring telescopic rod 23, the moving rack 22, and the pulley 24 to move accordingly. When the pulley 24 moves to the inclined surface position of the arc-shaped platform 28, it can push the pulley 24 and the moving rack 23 towards the position close to the spring telescopic rod 23 and compress the spring telescopic rod 23. The limiting groove 25 and the limiting block 26 can ensure the moving direction of the moving rack 22. The moving rack 22 meshes with the first gear 21, which can drive the first gear 21, the transmission shaft 18, and the second square rod 17 to rotate. The second square rod 17 can drive one rotating rod 4 to rotate outward. The rotating rods 4 on both sides of the lifting rod 3 are connected through a transmission mechanism, which can make both rotating rods 4 rotate outward. When the pulley 24 moves to the inner side of the sector platform 29, the rotating rod 4 can be kept in the open position. When the pulley 24 moves to the rear side of the sector platform 29, under the elastic force of the spring telescopic rod 23, the moving rack 22 can be pushed back to the original position, and under the transmission action of the gears, the two rotating rods 4 can return to the original position.

[0026] Refer to the attached drawings of the specification Figure 7, the transmission mechanism includes a transmission rod 31 installed at the upper end of the second square rod 17. A second gear 32 is installed at the upper end of the transmission rod 31. The second gears 32 on both sides above the first square rod 15 are meshed. When one of the second square rods 17 rotates, it can drive the transmission rod 31 and the second gear 32 to rotate. The second gears 32 on both sides above the first square rod 15 are meshed, so that the two second gears 32 can rotate in opposite directions, and then the two rotating rods 4 can rotate synchronously.

[0027] Refer to the attached drawings of the specification Figure 1 , a lifting rod 3 and two rotating rods 4 form a set of holding rods. The second gears 32 on adjacent sets of holding rods are not at the same height, which can prevent the interference of the rotating rods 4 in different groups.

[0028] Refer to the attached drawings of the specification Figure 5 and the attached drawings of the specification Figure 8 , the pushing frame 5 includes an annular lifting platform 33 located outside the rotating table 13. A plurality of electric telescopic rods 34 are installed at the lower end of the annular lifting platform 33. The fixed ends of the electric telescopic rods 34 are installed on the inner surface of the quenching tank 1. A notch is opened on one side of the annular lifting platform 33, and the notch is located at the quenching station 9. An annular holding platform 35 is arranged outside the rotating table 13, and the annular holding platform 35 is installed in the quenching tank 1 through a plurality of support rods 36.

[0029] The process of the pushing frame 8 pushing the lifting rod 3 and the rotating rod 4 is as follows: Under normal conditions, the lifting rod 3 and the rotating rod 4 are placed on the annular holding platform 35. The electric telescopic rod 34 is started to extend, and the electric telescopic rod 34 can push the annular lifting platform 33 upward. The annular lifting platform 33 can push the other lifting rods 3 and rotating rods 4 except the quenching station 9 upward, which is convenient for loading, heating and unloading the bearing fittings. After the bearing fittings are heated, the electric telescopic rod 34 is started to shorten. Under the action of gravity, the lifting rod 3 and the rotating rod 4 can return to their original positions. When the heated bearing fittings move downward, after the bearing fittings move out of the electromagnetic heating coil, the rotating frame 2 drives the bearing fittings to rotate, and the rotating rod 4 is opened during the rotation process, so that the bearing fittings can be in an open state when entering the quenching liquid, which is convenient for ensuring the quenching quality.

[0030] Refer to the attached drawings of the specification Figure 1 、the attached drawings of the specification Figure 5 and the attached drawings of the specification Figure 7, a positioning rod 37 is installed on the lower surface inside the quenching box 1. The positioning rod 37 is located at the heating station 8. When the lifting rod 3 and the rotating rod 4 rotate to the heating station 8, the positioning rod 37 can intercept and position one rotating rod 4. The rotating rod 4 can be intercepted by the positioning rod 37, thereby ensuring the position of the rotating rod 4 during heating, which is convenient for pushing the bearing fitting into the electromagnetic heating coil. The two rotating rods 4 are connected by gears, which can position the two rotating rods 4. When the rotating rod 4 moves upward, the bearing can be heated. After heating, the rotating rod 4 and the lifting rod 3 move downward and rotate. When the rotating rod 4 and the lifting rod 3 rotate to the other side of the positioning rod 37, the rotating rod 4 and the lifting rod 3 can move to below the highest point of the positioning rod 37, preventing the rotating rod 4 and the lifting rod 3 from being intercepted.

[0031] Refer to the attached drawings of the specification Figure 1 , the attached drawings of the specification Figure 4 , the attached drawings of the specification Figure 8 and the attached drawings of the specification Figure 9 , the limit frame 20 includes a limit rod 38 installed on the lifting rod 3 and the rotating rod 4 on the side away from the rotating table 13. A placing plate 39 is installed on the limit rod 38. The bearing to be quenched is placed on the placing plate 39 and sleeved outside the limit rod 38. The outer ring or inner ring of the bearing is sleeved outside the limit rod 38. The bearing fitting is placed by the transmission plate 39 and positioned by the limit rod 38.

[0032] Refer to the attached drawings of the specification Figure 1 , the attached drawings of the specification Figure 4 , the attached drawings of the specification Figure 8 and the attached drawings of the specification Figure 9 , a second rolling bearing 40 is installed on the side of the lifting rod 3 and the rotating rod 4 away from the rotating table 13. The lower end of the limit rod 38 extends into the second rolling bearing 40. The limit rod 38 can be driven to rotate by an external device, thereby ensuring the heating effect of the bearing fitting.

[0033] Although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A quenching device for bearing processing, comprising a quenching tank (1) in which quenching liquid is placed, a rotating frame (2) is installed in the quenching tank (1), the quenching tank (1) is installed on one side of an electromagnetic heating device, and an electromagnetic heating coil is provided on the electromagnetic heating device, characterized in that, A dispersion quenching mechanism is installed inside the quenching tank (1). The dispersion quenching mechanism includes a plurality of lifting rods (3) installed on a rotating frame (2). Rotating rods (4) are arranged on both sides of the lifting rods (3). A pushing frame (5) is installed inside the quenching tank (1). The pushing frame (5) can drive the lifting rods (3) and the rotating rods (4) to move up and down. A driving frame (6) is installed inside the quenching tank (1). The driving frame (6) can make the rotating rods (4) rotate to both sides. A loading station (7), a heating station (8), a quenching station (9), and an unloading station (10) are arranged inside the quenching tank (1). The rotating frame (2) can drive the lifting rods (3) and the rotating rods (4) to rotate to the above-mentioned multiple stations in sequence.

2. The quenching device for bearing processing according to claim 1, characterized in that, The rotating frame (2) includes a support platform (11) installed at the lower end inside the quenching tank (1). The rotating frame (2) includes a servo motor (12) installed at the upper end of the support platform (11). A rotating table (13) is installed at the rotating end of the servo motor (12).

3. A quenching device for bearing processing according to claim 2, characterized in that, One end of the lifting rod (3) extends above the rotating table (13). A first square transmission hole (14) is formed at the end of the lifting rod (3) above the rotating table (13). A first square rod (15) is arranged inside the first square transmission hole (14). The lower end of the first square rod (15) is installed on the upper surface of the rotating table (13). A second square transmission hole (16) is formed at the end of the rotating rod (4) above the rotating table (13). A second square rod (17) is arranged inside the second square transmission hole (16). A transmission shaft (18) is installed at the lower end of the second square rod (17). A first rolling bearing (19) is installed at the lower end of the transmission shaft (18). The lower end of the first rolling bearing (19) is installed on the upper surface of the rotating table (13). Limit frames (20) are installed at the ends of the lifting rods (3) and the rotating rods (4) away from the rotating table (13). The bearing to be quenched can be sleeved outside the limit frames (20). There are three electromagnetic heating coils, and the electromagnetic heating coils are located at the heating station (8). When the pushing frame (5) pushes the lifting rods (3) and the rotating rods (4) upward, the bearing can be made to enter the electromagnetic heating coils.

4. A quenching device for bearing processing according to claim 3, characterized in that, The driving frame (6) includes a first gear (21) located on one side of the lower end of the first square rod (15). The first gear (21) is mounted on a transmission shaft (18) on one side of the first square rod (15). The first gear (21) meshes with a moving rack (22). A spring telescopic rod (23) is mounted on one side surface of the moving rack (22). The lower end of the spring telescopic rod (23) is mounted on the upper surface of the rotating table (13). One end of the moving rack (22) is mounted with a pulley (24). A limiting groove (25) is formed at the lower end of the moving rack (22). A limiting block (26) is arranged in the limiting groove (25). The lower end of the limiting block (26) is mounted on the upper surface of the rotating table (13). An annular limiting table (27) is arranged outside the upper part of the rotating table (13). One end of the pulley (24) abuts against the inner surface of the annular limiting table (27). An arc-shaped table (28) is mounted on the inner surface of the annular limiting table (27). One end of the arc-shaped table (28) is mounted with a sector table (29). The pulley (24) can move to the sector table (29) through the inclined surface of the arc-shaped table (28) and push the moving rack (22) to one side. The annular limiting table (27) is mounted on the lower inner surface of the quenching tank (1) through a plurality of fixing rods (30). The second square rods (17) on both sides of the first square rod (15) are connected by a transmission mechanism. When the lifting rod (3) and the rotating rod (4) rotate from the heating station (8) to the quenching station (9), the pulley (24) can contact the arc-shaped table (28).

5. A quenching device for bearing processing according to claim 4, characterized in that, The transmission mechanism includes a transmission rod (31) mounted on the upper end of the second square rod (17). A second gear (32) is mounted on the upper end of the transmission rod (31). The second gears (32) on both sides above the first square rod (15) mesh with each other.

6. A quenching device for bearing processing according to claim 5, characterized in that, One lifting rod (3) and two rotating rods (4) form a set of holding rods. The second gears (32) on adjacent sets of holding rods are not at the same height.

7. A quenching device for bearing processing according to claim 3, characterized in that, The pushing frame (5) includes an annular lifting table (33) located outside the rotating table (13). A plurality of electric telescopic rods (34) are mounted at the lower end of the annular lifting table (33). The fixed ends of the electric telescopic rods (34) are mounted on the inner surface of the quenching tank (1). A notch is formed on one side of the annular lifting table (33), and the notch is located at the quenching station (9). An annular holding table (35) is arranged outside the rotating table (13). The annular holding table (35) is mounted in the quenching tank (1) through a plurality of support rods (36).

8. A quenching device for bearing processing according to claim 5, characterized in that, A positioning rod (37) is mounted on the lower inner surface of the quenching tank (1), and the positioning rod (37) is located at the heating station (8). When the lifting rod (3) and the rotating rod (4) rotate to the heating station (8), the positioning rod (37) can intercept and position one rotating rod (4).

9. The quenching device for bearing processing according to claim 2, wherein The limiting frame (20) includes a limiting rod (38) mounted on the lifting rod (3) and the rotating rod (4) on the side far from the rotating table (13). A holding plate (39) is mounted on the limiting rod (38). The bearing to be quenched is placed on the holding plate (39) and sleeved outside the limiting rod (38).

10. A quenching device for bearing processing according to claim 9, characterized in that, A second rolling bearing (40) is installed on one side of the lifting rod (3) and the rotating rod (4) away from the rotating table (13), and the lower end of the limiting rod (38) extends into the second rolling bearing (40).

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