Quenching device for bearing ring production

Abstract

The utility model belongs to the technical field of bearing quenching, and particularly relates to a quenching device for bearing ring production, which comprises a quenching structure and a support which are distributed on a quenching pipe in a surrounding manner, a built-in groove is arranged at the bottom of the periphery of the quenching pipe, and mounting grooves are distributed on the periphery of the quenching pipe in a surrounding manner; a plurality of limiting columns are arranged on the bracket; the quenching structure comprises a spray head and a branch head, spray pipes are distributed around the spray head, a gas guide groove is formed in the spray head, the spray pipes are assembled and connected with the branch head, the branch head is arranged in the mounting groove, a pressure tank is arranged in the quenching pipe, and an exhaust pipe is arranged at the bottom of the pressure tank. The utility model has the advantages that the spray pipes are distributed and mounted around the spray heads at equal intervals, each group of spray pipes is correspondingly provided with the spray heads, and branch heads in three groups of directions can simultaneously heat a workpiece in multiple directions, so that the whole workpiece is uniformly heated, and the inner wall of the workpiece is continuously heated and quenched.

Description

Technical Field

[0001] The utility model belongs to the technical field of bearing quenching, in particular to a quenching device used for the production of bearing rings. Background Art

[0002] Bearing is an important component in modern mechanical equipment. Its main function is to support the mechanical rotating body, reduce the friction coefficient during its movement, and ensure its rotation accuracy. Rolling bearings are generally composed of four parts: outer ring, inner ring, rolling element and cage. According to the shape of the rolling element, rolling bearings are divided into two categories: ball bearings and roller bearings. When processing bearings, quenching equipment is needed to quench them to improve their strength.

[0003] The Chinese patent with the authorization announcement number CN112981086A discloses a quenching device for bearing ring production, which relates to the field of heat treatment technology; in order to solve the problem of low clamping efficiency; specifically includes a machine base, the top outer wall of the machine base is provided with a main moving mechanism, the top outer wall of the main moving mechanism is provided with a rotating mechanism, the top outer wall of the rotating mechanism is provided with a clamping mechanism, the top outer wall of the machine base is fixed with a quenching box by bolts, the inner wall of the quenching box is slidably connected with a quenching box cover, the clamping mechanism includes a rotating seat, an "L"-shaped clamping arm and a clamping claw, the top outer wall of the rotating seat is fixed with two multi-sunk hinged plates by bolts, the bottom outer wall of the "L"-shaped clamping arm is rotatably connected to the outer wall of the hinged plate, the top outer wall of the "L"-shaped clamping arm is rotatably connected to the outer wall of the clamping claw, the middle inner wall of the rotating seat is slidably connected with a sliding rod, and the top outer wall of the sliding rod is fixed with a support platform by bolts. The present invention does not require manual additional clamping, is convenient and fast, and has high efficiency.

[0004] The above patent only uses a clamping mechanism to send the workpiece into the quenching box for quenching. When the outer wall of the workpiece is heated and quenched, the workpiece is not quickly heated evenly, and the overall average heating effect is poor. The part itself is heavy, and the workpiece is clamped by a clamping mechanism, which increases the cost of using the equipment. Utility Model Content

[0005] The utility model overcomes the deficiencies of the prior art and solves the technical problems of uniform heating of workpieces and equipment use cost.

[0006] In order to achieve the above-mentioned purpose, the utility model provides the following technical solutions: a quenching device for bearing ring production, comprising a quenching structure and a bracket distributed around a quenching tube, a built-in groove is provided at the bottom of the outer periphery of the quenching tube, and mounting grooves are distributed around the outer periphery of the quenching tube;

[0007] A plurality of limit columns are provided on the bracket;

[0008] The quenching structure includes a nozzle and a branch head. Nozzles are installed around the nozzle. An air guide groove is provided inside the nozzle. The nozzle is assembled and connected with a branch head. The branch head is in the installation groove. A pressure tank is installed inside the quenching tube, and an exhaust pipe is provided at the bottom of the pressure tank.

[0009] Furthermore, the air guide groove is communicated with the exhaust pipe, and the nozzle is connected inside the air guide groove.

[0010] Furthermore, there is a gap between every two limit columns, and the gap is used to place workpieces. Multiple gaps can be used to place workpieces of different sizes, and can also limit the workpieces to prevent them from loosening inside.

[0011] Furthermore, the branch head is provided with a plurality of branch holes, a through hole is passed through the branch hole, and a sealing plug is sealed and connected above the through hole. Multiple branch holes can increase the heating area of ​​the workpiece, thereby accelerating the heating efficiency, and the sealing plug is detachably connected above the through hole to prevent the combustible gas from being discharged from above the through hole.

[0012] In summary, compared with the prior art, the beneficial effects of the present invention are:

[0013] Nozzles are installed around the nozzles. There are three groups of nozzles equidistantly around the nozzles. Each group is equipped with a corresponding nozzle. The branch heads in three directions can heat the workpiece in multiple directions at the same time, so that the workpiece is evenly heated as a whole and the inner wall of the workpiece is continuously heated and quenched.

[0014] The multiple intervals can be used to place workpieces of different sizes, and can also restrict the workpieces to prevent them from loosening inside. There is no need to add other stabilizing mechanisms. Workpieces of different types and sizes can be processed, improving the universal adaptability of workpiece placement. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0016] Figure 2 This is a schematic diagram of the overall cross-sectional structure of the utility model;

[0017] Figure 3 It is a schematic diagram of the enlarged structure of the utility model A;

[0018] Figure 4 It is a structural schematic diagram of some parts of the utility model;

[0019] Explanation of the reference numerals: 10, quenching tube; 11, bracket; 12, limit column; 13, workpiece; 14, built-in groove; 15, nozzle; 16, nozzle; 17, air guide groove; 18, branch head; 19, branch hole; 20, through hole; 21, sealing plug; 22, pressure tank; 23, exhaust pipe; 24, mounting groove. DETAILED DESCRIPTION

[0020] In order to enable those skilled in the art to better understand the solution of the present invention, the technical solution in the embodiment of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiment of the present invention.

[0021] refer to Figure 1-Figure 4 A quenching device for bearing ring production includes a quenching tube 10, a quenching structure and a bracket 11. The quenching structure is distributed around the quenching tube 10. A built-in groove 14 is provided at the bottom of the outer periphery of the quenching tube 10. A mounting groove 24 is distributed around the outer periphery of the quenching tube 10.

[0022] refer to Figure 3 and Figure 4 The quenching structure includes a nozzle 15 and a branch head 18. The nozzle 15 is surrounded by nozzles 16. There are three groups of nozzles 16 equidistantly around each other. Each group is correspondingly equipped with a branch head 18. The branch heads 18 in three directions can heat the workpiece 13 in multiple directions at the same time, so that the workpiece 13 is evenly heated as a whole.

[0023] further, Figure 4 A threaded structure is provided below the middle nozzle 15, which can be rotatably disassembled and connected to the built-in groove 14. After the nozzle 15 is installed, the nozzle 16 is connected and installed. The nozzle 16 can be installed by welding, sleeve connection or thread matching.

[0024] An air guide groove 17 is provided inside the nozzle 15, and a branch head 18 is assembled and connected to the nozzle 16. The branch head 18 is in the installation groove 24. A pressure tank 22 is installed inside the quenching tube 10, and an exhaust pipe 23 is provided at the bottom of the pressure tank 22. The air guide groove 17 and the exhaust pipe 23 are connected to each other, and the nozzle 16 is connected inside the air guide groove 17;

[0025] The pressure tank 22 is filled with combustible gas. There is an air inlet on the top of the pressure tank 22 for filling the pressure tank 22 with combustible gas. The gas inside the pressure tank 22 is discharged into the nozzle 15 through the exhaust pipe 23. Then the combustible gas is discharged into the branch head 18 in the gas guide groove 17 and discharged outward through the branch hole 19. The discharged combustible gas is ignited and then quenched and heated toward the workpiece 13. Figure 1 As shown, an electric control valve can be added in the exhaust pipe 23 to control the output and closing of the pressure tank 22, and the ignition method adopts external ignition or an ignition structure installed in the nozzle 15 for ignition.

[0026] refer to Figure 1 and Figure 2The bracket 11 is provided with a plurality of limit posts 12, and there is a gap between every two limit posts 12, and the gap is used to place the workpiece 13; a plurality of gaps are formed between the plurality of limit posts 12, and the workpiece 13 is placed on the gaps for stability, and the bracket 11 is evenly distributed around three, and the use of three brackets 11 with the gaps can effectively and stably place the workpiece 13, and the workpiece 13 is placed as follows Figure 1 As shown by the arrow in , the workpiece 13 is placed from top to bottom, and is placed on the interval by manual picking or clamping the workpiece 13 by a robot arm. During the quenching and heating process, other heating equipment can be used to heat the outer wall of the workpiece 13 to improve the heating efficiency. It is worth noting that the bracket 11 is fixed to the periphery of the quenching tube 10, and the angle of the bracket 11 is 90°. The 90° setting can facilitate the workpiece 13 to be placed flat on the interval surface. Multiple intervals can be used to place workpieces 13 of different sizes, and can also limit the workpiece 13 to prevent it from loosening inside. There is no need to add other stabilizing mechanisms. Workpieces 13 of different types and sizes can be processed, and the universal adaptability function for the placement of the workpiece 13 is improved.

[0027] Furthermore, the quenching tube 10 and the bracket 11 are made of high temperature resistant metal materials, so that the quenching tube 10 will not be damaged due to high temperature during quenching.

[0028] refer to Figure 3 As shown, a plurality of branch holes 19 are provided on the branch head 18, and a through hole 20 is penetrated above the branch hole 19, and a sealing plug 21 is sealed and connected above the through hole 20. One end of the two lowest branch holes 19 is provided with a structure mutually nested with the nozzle 16. When installing the branch head 18, the branch head 18 is embedded in the installation groove 24, and continuously pressed inward so that the branch hole 19 is sleeved on the nozzle 16 for stability. The three upper branch holes 19 are connected through the through hole 20. During the quenching process, the heating area of ​​the workpiece 13 can be increased through multiple branch holes 19, thereby accelerating the heating efficiency. The sealing plug 21 is detachably connected above the through hole 20 to prevent the combustible gas from being discharged from above the through hole 20.

[0029] In this embodiment: the gas inside the pressure tank 22 is discharged into the interior of the nozzle 15 through the exhaust pipe 23, and then the combustible gas is discharged into the branch head 18 in the gas guide groove 17 and discharged outward through the branch hole 19. The discharged combustible gas is ignited and then quenched and heated to the workpiece 13. During the quenching process, the workpiece 13 is heated to a certain appropriate temperature and maintained for a period of time, and then immersed in the quenching medium for rapid cooling to improve the hardness and wear resistance of the metal workpiece. When the workpiece 13 is placed in the quenching medium, there is no need to remove the workpiece 13, and it can be clamped on the periphery of the quenching tube 10 by an external robotic arm, and the quenching tube 10 is placed in water as a whole, thereby quickly cooling the workpiece 13. It is worth noting that: the workpiece 13 is a metal material, and the metal material is an alloy or steel. When the workpiece 13 is placed in water, it will not be affected by the buoyancy generated by the water, causing the workpiece 13 to float.

[0030] For example, certain words are used in the specification and claims to refer to specific components. Those skilled in the art should understand that hardware manufacturers may use different terms to refer to the same component. This specification and claims do not use differences in names as a way to distinguish components, but use differences in the functions of components as the criteria for distinction. For example, "including" mentioned throughout the specification and claims is an open term, so it should be interpreted as "including but not limited to". "Approximately" means that within an acceptable error range, those skilled in the art can solve the technical problem within a certain error range and basically achieve the technical effect.

[0031] It should be noted that the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a product or system including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such product or system. In the absence of more restrictions, the elements defined by the sentence "comprises a ..." do not exclude the existence of other identical elements in the product or system including the elements.

[0032] The above description shows and describes several preferred embodiments of the present application, but as mentioned above, it should be understood that the present application is not limited to the form disclosed herein, and should not be regarded as excluding other embodiments, but can be used in various other combinations, modifications and environments, and can be modified within the scope of the application concept described herein through the above teachings or the technology or knowledge of the relevant field. The changes and modifications made by those skilled in the art do not deviate from the spirit and scope of the present application, and should be within the scope of protection of the claims attached to the present application.

Claims

1. A quenching device for bearing ring production, characterized in that: It comprises a quenching structure and a bracket (11) which are distributed around a quenching tube (10); a built-in groove (14) is provided at the bottom of the outer periphery of the quenching tube (10); and a mounting groove (24) is distributed around the outer periphery of the quenching tube (10); A plurality of limiting columns (12) are provided on the bracket (11); The quenching structure comprises a nozzle (15) and a branch head (18), wherein a nozzle (16) is installed around the nozzle (15), an air guide groove (17) is provided inside the nozzle (15), the nozzle (16) is assembled and connected with a branch head (18), and the branch head (18) is in a mounting groove (24), and a pressure tank (22) is installed inside the quenching tube (10), and an exhaust pipe (23) is provided at the bottom of the pressure tank (22).

2. A quenching device for bearing ring production according to claim 1, characterized in that: The air guide groove (17) and the exhaust pipe (23) are communicated with each other.

3. A quenching device for bearing ring production according to claim 1, characterized in that: The nozzle (16) is connected to the inside of the air guide groove (17).

4. A quenching device for bearing ring production according to claim 1, characterized in that: There is a gap between every two limiting columns (12), and the gap is used for placing the workpiece (13).

5. A quenching device for bearing ring production according to claim 1, characterized in that: The branch head (18) is provided with a plurality of branch holes (19).

6. A quenching device for bearing ring production according to claim 5, characterized in that: A through hole (20) is passed through the branch hole (19), and a sealing plug (21) is sealed and connected above the through hole (20).

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