Stainless steel bearing machining device and machining method thereof

Abstract

This invention discloses a stainless steel bearing processing device, including an inner ring processing assembly comprising a first processing frame, a first connecting shaft rotatably connected to the first processing frame and a first processing block capable of being raised and lowered, a first active pressing roller connected to the first connecting shaft, and a plurality of first processing ring grooves spaced apart in the axial direction arranged on the outer periphery of the first active pressing roller, and a first passive pressing roller rotatably connected to the first processing block; and an outer ring processing assembly comprising a second processing frame, a second connecting shaft rotatably connected to the second processing frame and a second processing block capable of being raised and lowered, a second active pressing roller connected to the second connecting shaft, and a second passive pressing roller rotatably connected to the second processing block, the second passive pressing roller having a plurality of second processing ring grooves spaced apart in the axial direction; using this invention to process various bearing components is simple to operate, and the processed bearing components have high hardness on key surfaces.

Description

Technical Field

[0001] This invention relates to the field of electromechanical processing technology, and in particular to a stainless steel bearing processing device. Background Technology

[0002] Bearings are general-purpose components widely used in the machinery manufacturing industry. A bearing mainly consists of an outer ring, an inner ring, a cage, and several rollers. The cage is mounted on the outside of the inner ring, and its inner side has several notches for connecting the rollers. The rollers are inserted into the outer central annular groove on the outside of the inner ring, and the cage is secured in the annular groove on the inside of the outer ring. In existing technology, the outer and inner rings are first machined using forging, resulting in a complex structure. Then, grinding is performed to improve the precision of the inner and outer surfaces of the outer and inner rings. Finally, heat treatment and liquid polishing are sequentially performed to improve the corrosion resistance of the inner and outer rings. This process is complex. Summary of the Invention

[0003] The purpose of this section is to outline some aspects of embodiments of the present invention and to briefly describe some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be construed as limiting the scope of the invention.

[0004] In view of the problems existing in the above and / or existing bearing manufacturing processes, the present invention is proposed.

[0005] Therefore, the purpose of this invention is to provide a stainless steel bearing processing device. This invention achieves the forming of the outer intermediate annular groove on the outer side of the inner ring and the inner intermediate annular groove on the inner side of the outer ring by setting up an inner ring processing component and an outer ring processing component, respectively. The processing is convenient and the operation is simple.

[0006] To solve the above-mentioned technical problems, the present invention provides the following technical solution: a stainless steel bearing processing device, comprising,

[0007] The outer ring processing assembly includes a first processing frame, on which a first connecting shaft and a first processing block capable of reciprocating linear motion in the height direction are rotatably connected. A first active extrusion roller is connected to the first connecting shaft. A first extrusion ring groove is formed on the first active extrusion roller. Several first processing ring grooves are arranged at intervals in the axial direction on the outer periphery of the first active extrusion roller at the first extrusion ring groove. A first passive extrusion roller is rotatably connected to the first processing block. The two sides of the first passive extrusion roller in the axial direction and the two sides of the first extrusion ring groove in the axial direction are respectively flush.

[0008] The inner ring processing assembly includes a second processing frame, on which a second connecting shaft and a second processing block capable of reciprocating linear motion in the height direction are rotatably connected. A second active extrusion roller is connected to the second connecting shaft, and the second active extrusion roller has a second extrusion ring groove. A second passive extrusion roller is rotatably connected to the second processing block, and the second passive extrusion roller has several second processing ring grooves spaced apart in the axial direction. The second passive extrusion roller and the second extrusion ring groove are flush on both sides in the axial direction.

[0009] In a preferred embodiment of the stainless steel bearing processing device of the present invention, a first extrusion driver is fixedly connected to the upper end of the first processing frame, a first lifting rod capable of reciprocating linear motion in the height direction is connected to the first extrusion driver, and the first processing block is fixedly connected to the bottom of the first lifting rod.

[0010] In a preferred embodiment of the stainless steel bearing processing device of the present invention, a first processing motor is fixedly connected to the outer side of the first processing frame, and the first processing motor is connected to the first connecting shaft.

[0011] In a preferred embodiment of the stainless steel bearing processing device of the present invention, the first processing frame has first sliding grooves at both ends, the first processing block includes a first horizontal part fixedly connected to the bottom of the first lifting rod, the left and right ends of the first horizontal part are respectively fixed with first sliding support parts that slide along the first sliding groove, the first sliding support parts are rotatably connected to a first rotating shaft, and the first passive extrusion roller is connected to the first rotating shaft.

[0012] In a preferred embodiment of the stainless steel bearing processing device of the present invention, a second extrusion driver is fixedly connected to the upper end of the second processing frame, a second lifting rod capable of reciprocating linear motion in the height direction is connected to the second extrusion driver, and the second processing block is fixedly connected to the bottom of the second lifting rod.

[0013] In a preferred embodiment of the stainless steel bearing processing device of the present invention, a second processing motor is fixedly connected to the outer side of the second processing frame, and the second processing motor is connected to the second connecting shaft.

[0014] In a preferred embodiment of the stainless steel bearing processing device of the present invention, the second processing frame has second sliding grooves at both ends, the second processing block includes a second horizontal part fixedly connected to the bottom of the second lifting rod, the left and right ends of the second horizontal part are respectively fixed with second sliding support parts that slide along the second sliding groove, the second sliding support parts are rotatably connected to a second rotating shaft, and the second passive extrusion roller is connected to the second rotating shaft.

[0015] In a preferred embodiment of the stainless steel bearing processing device of the present invention, the device further includes a roller processing assembly. The roller processing assembly includes a processing housing with an openable / closable door connected to it. A processing driver is fixedly connected to the outside of the processing housing. A horizontally positioned, reciprocating linearly movable rod is connected to the processing driver. An insulated movable plate is fixedly connected to one end of the movable rod that extends into the processing housing. An upper processing plate and a lower processing plate, spaced apart in the height direction, are connected inside the processing housing. A sliding groove is formed at the upward-facing end of the lower processing plate. The lower side of the movable rod can move along the lower side of the sliding groove. The lower processing plate slides left and right. The upper end of the moving plate has a placement groove. The roller has a connecting ring groove. When the front and rear ends of the roller are respectively attached to the lower processing plate at the front and rear ends of the sliding groove, the roller is inserted into the moving plate through the placement groove. The outer diameter of the placement groove is larger than the outer diameter of the roller at the connecting ring groove. The processing box is equipped with a second air storage tank, a second vacuum pump, and a second exhaust valve. The processing box is connected to a second air inlet pipe and a second exhaust pipe. The second air inlet pipe is connected to a second air inlet control valve, and the second exhaust pipe is connected to a second exhaust control valve. The two ends of the second air inlet pipe and the second exhaust pipe away from the processing box are respectively connected to the second air storage tank and the second vacuum pump.

[0016] In a preferred embodiment of the stainless steel bearing processing device of the present invention, the upper processing plate and the lower processing plate are respectively connected to a first power rod and a second power rod with opposite polarities.

[0017] As another object of the present invention, the present invention provides a method for machining bearings using a machining apparatus, comprising the following steps.

[0018] After heating, the first stainless steel sleeve is fitted onto the first active extrusion roller at the first extrusion ring groove. The first stainless steel sleeve is flush with both sides of the first extrusion ring groove in the axial direction. The first extrusion driver is started, causing the first lifting rod to move in the direction of the first active extrusion roller. The first passive extrusion roller presses the first stainless steel sleeve onto the first active extrusion roller. The first processing motor is started, and the first connecting shaft rotates. The first connecting shaft drives the first stainless steel sleeve to rotate via the first active extrusion roller. When the inner edge of the first stainless steel sleeve is extruded into a protrusion with the same shape as the first processing ring groove, the first processing motor stops, causing the first extrusion driver to reverse. The first lifting rod moves away from the first active extrusion roller. When resetting, the first extrusion driver stops, forming the first semi-finished product.

[0019] The first semi-finished product is clamped and its inner and outer edges are ground. After grinding, it is cut into several outer rings.

[0020] After heating, the second stainless steel sleeve is fitted onto the second active extrusion roller at the second extrusion ring groove. The second stainless steel sleeve is flush with both sides of the second extrusion ring groove in the axial direction. The second extrusion driver is started, causing the second lifting rod to move in the direction of the second active extrusion roller. The second passive extrusion roller presses the second stainless steel sleeve onto the second active extrusion roller. The second processing motor is started, and the second connecting shaft rotates. The second connecting shaft drives the second stainless steel sleeve to rotate via the second active extrusion roller. When the outer edge of the second stainless steel sleeve is extruded into a boss with the same shape as the second processing ring groove, the second processing motor stops, causing the second extrusion driver to reverse. The second lifting rod moves away from the location of the second active extrusion roller. When resetting, the second extrusion driver stops, forming the second semi-finished product.

[0021] The second semi-finished product is clamped in, and its inner and outer edges are ground. After grinding, it is cut into several inner rings.

[0022] The outer and inner rings are nitrided using an inner and outer ring reinforcement assembly.

[0023] Place several rollers one by one into the placement tank, with the front and rear sides of the rollers respectively attached to the lower processing plate. Close the hatch to seal the processing chamber. Vacuum pump two is activated to evacuate the processing chamber to the required vacuum level. After reaching the required vacuum level, close exhaust control valve two and open intake control valve two. Nitrogen stored in the gas tank enters the processing chamber. Start the processing driver to make the moving rod reciprocate linearly, which in turn drives the moving plate to reciprocate linearly. The moving plate drives the rollers to roll. The second energizing rod is connected to power supply two. The upper and lower processing plates discharge. After the rollers come into contact with the discharge, they are nitrided. Once nitriding is complete, the processing driver stops operating. Intake control valve two is closed, and exhaust valve two is opened. When the internal and external pressures are balanced, open the hatch and remove the nitrided rollers.

[0024] The cage is installed outside the outer intermediate annular groove on the outside of the inner ring. The roller is placed inside the outer intermediate annular groove on the outside of the inner ring. The connecting annular groove in the middle of the roller matches the arc-shaped mounting notch of the cage. The ring is cooled in liquid nitrogen. The outer ring is heated in hot oil. The heated outer ring matches the cooled roller and inner ring to ensure that the roller is inserted into the inner intermediate annular groove on the inside of the outer ring.

[0025] Compared with the prior art, the present invention has the following technical effects: several bosses are formed on the inner side of the first stainless steel sleeve by rotary extrusion, and several bosses are formed on the outer side of the second stainless steel sleeve by rotary extrusion. The center positions of several bosses in the middle of the first and second stainless steel sleeves are cut to form several outer and inner rings to be precision machined. The operation is simple. The inner ring, outer ring and roller after grinding are nitrided to improve their surface hardness and increase their corrosion resistance. It can be applied to the processing of bearings. Attached Figure Description

[0026] To more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the following description of the embodiments will be briefly introduced. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Wherein:

[0027] Figure 1 This is a diagram of the internal structure of the bearing in this invention.

[0028] Figure 2 This is a structural diagram of the outer ring in this invention.

[0029] Figure 3 This is a structural diagram of the inner ring in this invention.

[0030] Figure 4 This is a structural diagram of the roller in this invention.

[0031] Figure 5 This is a structural diagram of the cage in this invention.

[0032] Figure 6 This is a diagram showing the internal structure of the outer ring machining component in this invention.

[0033] Figure 7 This is a diagram showing the internal structure of the inner ring machining component in this invention.

[0034] Figure 8 This is a front view of the inner and outer ring reinforcement components in this invention.

[0035] Figure 9 This is a top view of the inner and outer ring reinforcement components in this invention.

[0036] Figure 10 for Figure 8 View from point AA.

[0037] Figure 11 for Figure 9 View from point BB.

[0038] Figure 12 for Figure 10 The view at CC.

[0039] Figure 13 This is a diagram showing the internal structure of the roller machining assembly in this invention.

[0040] Figure 14 This is a top view of the plane containing the upper side of the lower processing plate in this invention.

[0041] In the diagram, 100 is the outer ring, 101 is the inner intermediate annular groove, 200 is the cage, 201 is the mounting notch, 300 is the roller, 301 is the connecting annular groove, 400 is the inner ring, 401 is the outer intermediate annular groove, 500 is the outer ring machining assembly, 501 is the first machining motor, 502 is the first rotating shaft, 503 is the first passive extrusion roller, 504 is the first lifting rod, 505 is the first extrusion driver, 506 is the first machining frame, 506a is the first slide groove, 507 is the first active extrusion roller, 507a is the first extrusion annular groove, 507b is the first machining annular groove, 508 is the first connecting shaft, 509 is the first lower support bearing, 510 is the first upper support bearing, 511 is the first machining block, 511a is the first sliding support part, 511b is the first horizontal part, and 600 is the inner ring machining assembly. 601 Second processing motor, 602 Second upper support bearing, 603 Second passive extrusion roller, 603a Second processing ring groove, 604 Second lifting rod, 605 Second processing frame, 605a Second slide groove, 606 Second extrusion driver, 607 Second active extrusion roller, 607a Second extrusion ring groove, 608 Second connecting shaft, 609 Second lower support bearing, 610 Second rotating shaft, 611 Second processing block, 611a Second sliding support part, 611b Second horizontal part, 700 Inner and outer ring reinforcing assembly, 701 Inner and outer ring reinforcing housing, 702 Discharge component, 702a Mounting hole, 702b Connecting hole, 702c Connecting countersunk hole, 703 Box door, 704 First copper electrical component, 704a Partition, 704a-1 Through hole, 704a-2 fixing hole one, 704b front energizing rod one, 705 connecting ring, 706 copper discharge sleeve, 707 exhaust valve one, 708 clamping nut, 709 copper rod, 710 first drive motor, 711 exhaust pipe one, 712 vacuum pump one, 713 second drive motor, 714 gas tank one, 715 air inlet pipe one, 716 fastener one, 717 insulating pad one, 718 copper discharge plate one, 718a notch one, 719 insulating sleeve one, 720 rear energizing rod one, 720a energizing ring one, 721 first drive shaft, 722 exhaust control valve one, 723 second drive shaft, 724 rear energizing rod two, 724a energizing ring two, 725 air inlet control valve one, 726 insulating sleeve two, 727 Two insulating pads, two 728 copper energizing components, two 728a front energizing rods, two 729 copper discharge plates, two 729a notches, two 729b connecting grooves, one 730 insulating tube, two 731 insulating tubes, two 800 roller processing components, two 801 lower processing plates, two 801a sliding sinks, two 802 moving plates, two 802a placement sinks, two 803 processing drivers, two 804 moving rods, two 805 upper insulating plates, two 806 upper processing plates, two 807 exhaust valves, two 808 processing housings, two 809 first energizing rods, two 810 second energizing rods, two 811 lower insulating plates, two 812 hatches, two 813 exhaust pipes, two 814 exhaust control valves, two 815 vacuum pumps, two 816 gas storage tanks, two 817 air intake control valves, and two 818 air intake pipes. Detailed Implementation

[0042] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0043] Many specific details are set forth in the following description in order to provide a full understanding of the invention. However, the invention may also be practiced in other ways different from those described herein, and those skilled in the art can make similar extensions without departing from the spirit of the invention. Therefore, the invention is not limited to the specific embodiments disclosed below.

[0044] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that is mutually exclusive with other embodiments.

[0045] Example 1

[0046] Reference Figures 1 to 7 , Figure 13 and Figure 14 This embodiment provides a stainless steel bearing processing device, which is simple to operate and produces bearings with high surface hardness.

[0047] A stainless steel bearing processing apparatus includes an inner ring processing assembly 600 for processing an inner ring 400 and an outer ring processing assembly 500 for processing an outer ring 100.

[0048] Specifically, the outer ring processing assembly 500 includes a first processing frame 506, on which a first connecting shaft 508 and a first processing block 511 capable of reciprocating linear motion in the height direction are rotatably connected. A first processing motor 501 is fixedly connected to the outer side of the first processing frame 506. The first processing motor 501 is connected to the first connecting shaft 508. The left and right ends of the first connecting shaft 508 are rotatably connected to the first processing frame 506 via lower support bearings 509. A first extrusion driver 505 is fixedly connected to the upper end of the first processing frame 506. A first extrusion driver 505 is connected to the first extrusion driver 505. A first lifting rod 504 reciprocates linearly in the height direction. A first processing block 511 is fixedly connected to the bottom of the first lifting rod 504. A first active pressing roller 507 is connected to a first connecting shaft 508. The first active pressing roller 507 has a first pressing ring groove 507a. Several first processing ring grooves 507b are arranged axially spaced around the outer periphery of the first active pressing roller 507a. A first passive pressing roller 503 is rotatably connected to the first processing block 511. The first passive pressing roller 503 has two sides in the axial direction and the first pressing ring groove 507a. Both sides in the axial direction are flush; the inner ring processing assembly 600 includes a second processing frame 605, on which a second connecting shaft 608 and a second processing block 611 capable of reciprocating linear motion in the height direction are rotatably connected. A second processing motor 601 is fixedly connected to the outer side of the second processing frame 605. The second processing motor 601 is connected to the second connecting shaft 608. The left and right ends of the second connecting shaft 608 are rotatably connected to the second processing frame 605 via lower support bearings 609. A second extrusion driver 606 is fixedly connected to the upper end of the second processing frame 605. A second lifting rod 604 capable of reciprocating linear motion in the height direction is connected to 606. A second processing block 611 is fixedly connected to the bottom of the second lifting rod 604. A second active extrusion roller 607 is connected to the second connecting shaft 608. A second extrusion ring groove 607a is opened on the second active extrusion roller 607. A second passive extrusion roller 603 is rotatably connected to the second processing block 611. A number of second processing ring grooves 603a are opened on the second passive extrusion roller 603 at intervals in the axial direction. The second passive extrusion roller 603 and the second extrusion ring groove 607a are flush on both sides in the axial direction.

[0049] Specifically, the first processing frame 506 has first sliding grooves 506a at both its left and right ends. The first processing block 511 includes a first horizontal part 511b fixedly connected to the bottom of the first lifting rod 504. The left and right ends of the first horizontal part 511b are respectively fixed with first sliding support parts 511a that slide along the first sliding grooves 506a. A first rotating shaft 502 is rotatably connected to the first sliding support part 511a. A first passive pressing roller 503 is connected to the first rotating shaft 502. The two ends of the first rotating shaft 502 are respectively rotatably connected to the first sliding support part 511a via upper support bearings 510. The second processing frame 605 has second sliding grooves 605a at both ends. The second processing block 611 includes a second horizontal part 611b fixedly connected to the bottom of the second lifting rod 604. The left and right ends of the second horizontal part 611b are respectively fixed with second sliding support parts 611a that slide along the second sliding groove 605a. A second rotating shaft 610 is rotatably connected to the second sliding support part 611a. The second passive extrusion roller 603 is connected to the second rotating shaft 610. The left and right ends of the second rotating shaft 610 are respectively rotatably connected to the second sliding support part 611a via the upper support bearing 602.

[0050] Both the first extrusion actuator 505 and the second extrusion actuator 606 are preferably hydraulic cylinders. When the first extrusion actuator 505 is activated, the first lifting rod 504 moves in the height direction. The first lifting rod 504 drives the first sliding support parts 511a on both sides to move via the first horizontal part 511b. The first sliding support parts 511a on both sides slide up and down along the first slide groove 506a, improving the reliability of the first processing block 511 when it is activated. When the second extrusion actuator 606 is activated, the second lifting rod 604 moves in the height direction. The second lifting rod 604 drives the second sliding support parts 611a on both sides to move via the second horizontal part 611b. The second sliding support parts 611a on both sides slide up and down along the second slide groove 605a, improving the reliability of the second processing block 611 when it is activated.

[0051] Specifically, it also includes a roller machining assembly, which includes a machining housing 808. The machining housing 808 is connected to an openable hatch 812. A machining driver 803 is fixedly connected to the outside of the machining housing 808. A horizontally positioned, reciprocating linearly movable rod 804 is connected to the machining driver 803. An insulating movable plate 802 is fixedly connected to one end of the movable rod 804 that extends into the machining housing 808. An upper insulating plate 805 and a lower insulating plate 811 are fixedly connected to the inner walls of the upper and lower ends of the machining housing 808, respectively. An upper machining plate 806 is fixedly connected to the lower side of the upper insulating plate 805, and a lower machining plate 801 is fixedly connected to the upper side of the lower insulating plate 811. A sliding groove 801a is formed at the upward-facing end of the lower machining plate 801. The lower side of the movable rod 804 can slide left and right along the lower machining plate 801 below the sliding groove 801a. A placement groove 802a is formed at the upward-facing end of the movable plate 802. (The text also mentions rollers 300, but this seems unrelated to the main topic and is likely a separate sentence fragment.) A connecting annular groove 301 is located at the center in the axial direction. When the front and rear ends of the roller 300 are respectively attached to the lower processing plates 801 at the front and rear ends of the sliding countersink 801a, the roller 300 is inserted into the moving plate 802 via the placement countersink 802a. The outer diameter of the placement countersink 802a is larger than the outer diameter of the roller 300 at the connecting annular groove 301. The processing box 808 is equipped with an air storage tank 714, a vacuum pump 712, and an exhaust valve 707. The upper processing plate 806 is connected to an air inlet pipe 715 and an exhaust pipe 711. An air inlet control valve 725 is connected to the air inlet pipe 715, and an exhaust control valve 722 is connected to the exhaust pipe 711. The ends of the air inlet pipe 715 and the exhaust pipe 711 away from the processing box 808 are respectively connected to an air storage tank 714 and a vacuum pump 712. The upper processing plate 806 and the lower processing plate 801 are respectively connected to a first power rod 809 and a second power rod 810 with opposite polarities.

[0052] Both the upper processing plate 806 and the lower processing plate 801 are made of copper, and nitrogen is stored in the gas storage tank 714. By setting up the roller processing assembly, the outer periphery of the roller 300 is nitrided to improve the hardness of the outer surface of the roller 300, thereby increasing wear resistance and deformation resistance, and improving corrosion resistance.

[0053] Example 2

[0054] Reference Figures 1 to 7 , Figure 13 and Figure 14 This embodiment is based on Embodiment 1, but differs from Embodiment 1 in that it provides a method for machining bearings using a machining device, including the following steps:

[0055] After heating, the first stainless steel sleeve is fitted onto the first active extrusion roller 507 at the first extrusion ring groove 507a. The first stainless steel sleeve is flush with both sides of the first extrusion ring groove 507a in the axial direction. The first extrusion driver 505 is started, causing the first lifting rod 504 to move in the direction of the first active extrusion roller 507. The first passive extrusion roller 503 presses the first stainless steel sleeve onto the first active extrusion roller 507. The first processing motor 501 is started, and the first connecting shaft 508 rotates. The first connecting shaft 508 drives the first stainless steel sleeve to rotate via the first active extrusion roller 507. When the inner edge of the first stainless steel sleeve is extruded into a boss with the same shape as the first processing ring groove 507b, the first processing motor 501 stops, causing the first extrusion driver 505 to reverse. The first lifting rod 504 moves away from the first active extrusion roller 507. When resetting, the first extrusion driver 505 stops, forming the first semi-finished product.

[0056] The first semi-finished product is clamped and its inner and outer edges are ground. After grinding, it is cut into several outer rings of 100.

[0057] After heating, the second stainless steel sleeve is fitted onto the second active extrusion roller 607 at the second extrusion ring groove 607a. The second stainless steel sleeve is flush with both sides of the second extrusion ring groove 607a in the axial direction. The second extrusion driver 606 is started, causing the second lifting rod 604 to move in the direction of the second active extrusion roller 607. The second passive extrusion roller 603 presses the second stainless steel sleeve onto the second active extrusion roller 607. The second processing motor 601 is started, and the second connecting shaft 608 rotates. The second connecting shaft 608 drives the second stainless steel sleeve to rotate via the second active extrusion roller 607. When the outer edge of the second stainless steel sleeve is extruded into a boss with the same shape as the second processing ring groove 603a, the second processing motor 601 stops, causing the second extrusion driver 606 to reverse. The second lifting rod 604 moves away from the second active extrusion roller 607. When resetting, the second extrusion driver 606 stops, forming the second semi-finished product.

[0058] The second semi-finished product is clamped and its inner and outer edges are ground. After grinding, it is cut into several inner rings of 400.

[0059] The outer ring 100 and inner ring 400 are nitrided using the inner and outer ring reinforcement component 700.

[0060] Several rollers 300 are placed one by one into the placement trough 802a, with the front and rear sides of the rollers 300 respectively attached to the lower processing plate 801. The hatch 812 is closed, sealing the processing chamber 808. Vacuum pump 815 is activated to evacuate the processing chamber 808 to the required vacuum level. After reaching the required vacuum level, exhaust control valve 814 and vacuum pump 815 are closed, and inlet control valve 817 is opened, allowing nitrogen stored in the gas tank to enter the processing chamber 808. The processing drive 803 is started, causing the moving rod 804 to move. The reciprocating linear motion drives the moving plate 802 to reciprocate linear motion, and the moving plate 802 drives the roller 300 to roll. The first energizing rod 809 and the second energizing rod 810 are connected to the power source. The upper processing plate 806 and the lower processing plate 801 discharge. After the roller 300 contacts the discharge, it is nitrided. When the nitriding is completed, the processing driver 803 stops operating, the second air intake control valve 817 is closed, and the second exhaust valve 807 is opened. When the internal and external pressures are balanced, the hatch 812 is opened and the nitrided roller 300 is taken out.

[0061] The cage 200 is installed outside the outer intermediate annular groove 401 on the outer side of the inner ring 400. The roller 300 is placed inside the outer intermediate annular groove 401 on the outer side of the inner ring 400. The connecting annular groove 301 in the middle of the roller 300 mates with the arc-shaped mounting notch 201 of the cage 200. The ring is cooled in liquid nitrogen. The outer ring 100 is heated in hot oil. The heated outer ring 100 mates with the cooled roller 300 and inner ring 400 to ensure that the roller 300 is engaged in the inner intermediate annular groove 101 on the inner side of the outer ring 100.

[0062] The grinding machine tool used is an existing grinding machine tool (which is not the inventive point of this application, and its structure does not need to be described in detail). The grinding of the first semi-finished product or the second semi-finished product is done by clamping at one time to ensure the concentricity of the grinding. Through this embodiment combined with the processing device, the processing of the inner ring 400 and the hardening of the roller 300 can be realized. Its structure is simple and easy to operate. When nitriding the roller 300, the moving plate 802 is continuously reciprocated linearly, so that the roller 300 rolls along the moving groove of the moving plate 802. The upward-facing surface of the roller 300 is adjusted so that the outer circumference of the roller 300 can be nitrided, thereby improving the nitriding effect. The structure and method are simple.

[0063] Example 3

[0064] Reference Figures 8-12 This embodiment is based on embodiment 2, which provides a processing device that can further achieve nitriding of the outer surface of the inner ring 400 and the inner surface of the outer ring 100, improve the surface hardness, and thus improve the corrosion resistance. The operation is simple.

[0065] Specifically, the processing device also includes an inner and outer ring strengthening assembly 700, which includes an inner and outer ring strengthening box 701. The inner and outer ring strengthening box 701 is connected to an openable and closable door 703 (its connection structure is prior art and will not be described in detail here). A first drive motor 710, a second drive motor 713, an exhaust pipe 813, and an intake pipe 818 are fixedly connected to the rear side of the inner and outer ring strengthening box 701. An exhaust control valve 814 and an intake control valve 817 are respectively connected to the exhaust pipe 813 and the intake pipe 818. A vacuum pump 815 and a nitrogen storage tank 816 are connected to the end of the exhaust pipe 813 and the intake pipe 818 away from the inner and outer ring strengthening box 701. An exhaust valve 807 communicating with the inner cavity is fixedly connected to the upper side of the enclosure 701. Insulating pads 717 and 727 are fixedly connected to the left and right ends of the inner wall of the inner and outer ring reinforced enclosure 701, respectively. A copper energizing component 704 is fixedly connected to the right side of the insulating pad 717. A circular external mounting hole 702a is opened in the center of the rearward side of the copper energizing component 704. A copper discharge sleeve 706 is inserted into the copper energizing component 704 through the external mounting hole 702a. A groove for installing the outer ring 100 is opened in the rearward side of the center of the copper discharge sleeve 706. Several outer rings 100 stacked from back to front are inserted into the copper discharge sleeve 706 through the groove. A connecting ring 705 is threadedly connected to the copper discharge sleeve. Inside the discharge sleeve 706, a connecting ring 705 presses several outer rings 100 onto the copper discharge sleeve 706 via the foremost outer ring 100. The connecting ring 705 has external threads on its outer side. Insulating pad 727 has a first drive shaft 721 and a second drive shaft 723 extending into the inner and outer ring reinforced housing 701, respectively connected to the first drive motor 710 and the second drive motor 713. An insulating sleeve 719 inside the inner and outer ring reinforced housing 701 is fixedly connected to the first drive shaft 721. A copper discharge component 702 is fixedly connected to the insulating sleeve 719. A circular mounting hole 702a is opened at the center of the front side of the discharge component 702. Four connecting holes 702b are arranged on the outer periphery of the front side of the discharge component 702. Inside the mounting hole 702a... The discharge element 702 has several countersunk holes 702c. Between two adjacent countersunk holes 702c, a partition 704a corresponding to the connection hole 702b is fixed on the discharge element 702. The partition 704a has a through hole 704a-1 communicating with the connection hole 702b. A copper discharge plate 718 is inserted into the partition 704a through the through hole 704a-1. The partition 704a outside the through hole 704a-1 has several fixing holes 704a-2. The partition 704a is threadedly connected to a fastener 716 through the fixing holes 704a-2. The fastener 716 presses the copper discharge plate 718 onto the partition 704a. One end of the copper discharge plate 718 in the radial direction abuts against the inner side of the discharge element 702.The copper discharge plate 718 has several notches 718a spaced apart in the axial direction at its other end in the radial direction. The notches 718a are aligned with two adjacent protrusions of the outer rings 100. An insulating component is fixed to the copper discharge plate 718 at the notch 718a. The protrusions formed by the copper discharge plates 718 between adjacent notches 718a are aligned with the inner surface of the outer ring 100 at the inner central annular groove 101. A copper energizing component 728 is fixedly connected to the left side of the insulating pad 727. A copper discharge plate 729 is connected to the left side of the copper energizing component 728. A connecting groove 729b is formed on the copper discharge plate 729, running from front to back. The left end of the copper energizing component 728 runs from front to back along the connecting groove. The slot 729b is inserted into the copper discharge plate 729. Several fixing holes 2 are arranged around the outer periphery of the copper discharge plate 729. Fasteners 2 are threaded into the fixing holes 2 and press the copper discharge plate 729 onto the copper energizing component 728. An insulating sleeve 2 726 is fixedly connected to the second drive shaft 723 inside the inner and outer ring reinforced housing 701. A copper rod 709 is fixedly connected to the insulating sleeve 2 726. Several inner rings 400 are sequentially fitted onto the copper rod 709 from front to back. A clamping nut 708 is threaded onto the front of the copper rod 709. The clamping nut 708 presses the stacked inner rings 400 onto the copper rod 709. Several notches 2 729a are opened on the left side of the copper discharge plate 729. The copper discharge plate 729 contains several notches 2 729a. An insulating component 2 is fixed on the copper discharge plate 2 729. The notch 2 729a is aligned with the protrusions of two adjacent inner rings 400 that are close together. The end face of the protrusion formed by the copper discharge plate 2 729 between adjacent notches 2 729a is aligned with the outer surface of the inner ring 400 at the outer middle annular groove 401. A front energizing rod 1 704b is fixed to the left side of the copper energizing component 1 704. The front energizing rod 1 704b extends through a hole in the insulating pad 1 717 and out of the inner and outer ring reinforced housing 701. A front energizing rod 2 728a is fixed to the right side of the copper energizing component 2 728. The front energizing rod 2 728a extends through a hole in the insulating pad 2 727 and out of the inner and outer ring reinforced housing 701. The polarities of the front energizing rod 1 704b and the front energizing rod 2 728a are the same when energized. Insulating tube 1 730 and insulating tube 2 731 are fixed to the left and right sides of the body 701, respectively. A rear energizing rod 1 720 is inserted into insulating tube 1 730, and a rear energizing rod 2 724 is inserted into insulating tube 2 731. An energizing ring 1 720a is fixed to the right side of rear energizing rod 1 720, and an energizing ring 2 724a is fixed to the left side of rear energizing rod 2 724a. The outer circumference of the rear part of the discharge element 702 is attached to energizing ring 1 720a and can rotate along the inner side of energizing ring 1 720a. The outer circumference of the rear part of the copper rod 709 is attached to energizing ring 2 724a and can rotate along the inner side of energizing ring 2 724a. The rear energizing rod 2 724 and rear energizing rod 1 720 have the same polarity when energized, while the front energizing rod 1 704b and rear energizing rod 1 720 have opposite polarities when energized.

[0066] The hardness of the outer surface of the inner ring 400 and the inner surface of the outer ring 100 is strengthened by setting the inner and outer ring reinforcement components 700, thereby increasing the wear resistance and deformation resistance of the inner ring 400 and the outer ring 100.

[0067] Example 4

[0068] Reference Figures 8-12 This embodiment is based on embodiment 3, and provides a processing method based on embodiment 3, which can further achieve nitriding of the outer surface of the inner ring 400 and the inner surface of the outer ring 100, so as to further improve the surface hardness of the bearing.

[0069] The steps for nitriding the outer ring 100 and the inner ring 400 include:

[0070] Insert several outer rings 100 into the inner side of the copper discharge sleeve 706 from front to back, use the connecting ring 705 to press the several outer rings 100 onto the copper discharge sleeve 706, and put several inner rings 400 onto the copper rod 709 from front to back, and use the clamping nut 708 to press the several inner rings 400 onto the copper rod 709.

[0071] Close the chamber door 703 to seal the inner and outer ring reinforcement chamber 701. Open the vacuum pump 815 and exhaust control valve 814 to evacuate the inner and outer ring reinforcement chamber 701 to the required vacuum level. After reaching the required vacuum level, close the exhaust control valve 814 and vacuum pump 815. Open the intake control valve 817 to allow nitrogen stored in the gas tank 816 to enter the inner and outer ring reinforcement chamber 701. Start the first drive motor 710 and the second drive motor 713. Simultaneously open the intake control valve 725 and the intake control valve 817. The first drive shaft 721 and the second drive shaft 713... 23 rotates, the first drive shaft 721 drives the copper discharge plate 718 to rotate via the discharge element 702, the second drive shaft 723 drives the inner ring 400 to rotate via the copper rod 709, the front energizing rod 704b and the rear energizing rod 720 are connected to power source one, the front energizing rod 728a and the rear energizing rod 724 are connected to power source two, the front energizing rod 704b transmits electrical energy to the copper discharge sleeve 706 via the copper energizing element 704, the rear energizing rod 720a transmits electrical energy to the discharge element 702, and the discharge element 702 then transmits electrical energy to several copper discharge plates. 718, the front energizing rod 728a transmits electrical energy to the copper discharge plate 729 via the copper energizing component 728, and the rear energizing rod 724 transmits electrical energy to the copper rod 709 via the energizing ring 724a. A DC voltage of several hundred volts is applied between the copper discharge plate 718 and the copper discharge sleeve 706, and between the copper discharge plate 729 and the copper rod 709. Nitrogen gas inside the inner and outer ring reinforced housing 701 undergoes a glow discharge, generating positive ions that move towards the working surface. In an instant, the cathode voltage drops sharply, causing the positive ions to rush towards the cathode surface at high speed. Kinetic energy is converted into gas energy, which causes the surface temperature of the workpiece to rise. Due to the impact of nitrogen ions, elements such as iron, carbon, and oxygen are splashed out from the surface of the workpiece and combine with nitrogen ions to form iron nitride. As a result, iron nitride is gradually adsorbed on the workpiece, resulting in nitriding. This causes the inner surface of the outer ring 100 and the outer surface of the inner ring 400 to come into contact and discharge, resulting in nitriding. When nitriding ends, the first drive motor 710 and the second drive motor 713 stop operating, the first intake control valve 725 and the second intake control valve 817 are closed, and the second exhaust valve 807 is opened. When the internal and external pressures of the inner and outer ring strengthening box 701 are balanced.

[0072] Open the box door 703, rotate the connecting ring 705 and the clamping nut 708, remove the connecting ring 705 and the clamping nut 708, and take out the nitrided outer ring 100 and inner ring 400.

[0073] The above steps complete the nitriding of the inner ring 400 and the outer ring 100. The operation is convenient and the nitriding effect is good.

[0074] In this application, all directions are referenced to the front view. The direction perpendicular to the paper is the front-back direction, and the direction perpendicular to the front-back direction and horizontal is the left-right direction.

[0075] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. A stainless steel bearing processing device, characterized in that: It includes, The outer ring processing assembly (500) includes a first processing frame (506), on which a first connecting shaft (508) and a first processing block (511) capable of reciprocating linear motion in the height direction are rotatably connected. A first active extrusion roller (507) is connected to the first connecting shaft (508), and a first extrusion ring groove (507a) is opened on the first active extrusion roller (507a). Several first processing ring grooves (507b) are arranged at intervals in the axial direction on the outer periphery of the first active extrusion roller (507a). A first passive extrusion roller (503) is rotatably connected to the first processing block (511). The two sides of the first passive extrusion roller (503) in the axial direction and the two sides of the first extrusion ring groove (507a) in the axial direction are respectively flush. The inner ring processing assembly (600) includes a second processing frame (605), on which a second connecting shaft (608) and a second processing block (611) capable of reciprocating linear motion in the height direction are rotatably connected. A second active extrusion roller (607) is connected to the second connecting shaft (608), and a second extrusion ring groove (607a) is formed on the second active extrusion roller (607). A second passive extrusion roller (603) is rotatably connected to the second processing block (611), and a plurality of second processing ring grooves (603a) are formed on the second passive extrusion roller (603) spaced apart in the axial direction. The second passive extrusion roller (603) and the second extrusion ring groove (607a) are flush on both sides in the axial direction.

2. The stainless steel bearing processing device as described in claim 1, characterized in that: The upper end of the first processing frame (506) is fixedly connected to a first extrusion driver (505), and the first extrusion driver (505) is connected to a first lifting rod (504) that can reciprocate linearly in the height direction. The first processing block (511) is fixedly connected to the bottom of the first lifting rod (504).

3. The stainless steel bearing processing device as described in claim 2, characterized in that: A first processing motor (501) is fixedly connected to the outside of the first processing frame (506), and the first processing motor (501) is connected to the first connecting shaft (508).

4. A stainless steel bearing processing apparatus as described in any one of claims 1 to 3, characterized in that: The first processing frame (506) has a first sliding groove (506a) at both the left and right ends. The first processing block (511) includes a first horizontal part (511b) fixedly connected to the bottom of the first lifting rod (504). The left and right ends of the first horizontal part (511b) are respectively fixed with a first sliding support part (511a) that slides along the first sliding groove (506a). A first rotating shaft (502) is rotatably connected to the first sliding support part (511a). The first passive extrusion roller (503) is connected to the first rotating shaft (502).

5. The stainless steel bearing processing device as described in claim 3, characterized in that: The upper end of the second processing frame (605) is fixedly connected to a second extrusion driver (606), and the second extrusion driver (606) is connected to a second lifting rod (604) that can reciprocate linearly in the height direction. The second processing block (611) is fixedly connected to the bottom of the second lifting rod (604).

6. The stainless steel bearing processing device as described in claim 5, characterized in that: A second processing motor (601) is fixedly connected to the outside of the second processing frame (605), and the second processing motor (601) is connected to the second connecting shaft (608).

7. The stainless steel bearing processing device as described in claim 6, characterized in that: The second processing frame (605) has second sliding grooves (605a) at its left and right ends. The second processing block (611) includes a second horizontal part (611b) fixedly connected to the bottom of the second lifting rod (604). The left and right ends of the second horizontal part (611b) are respectively fixed with second sliding support parts (611a) that slide along the second sliding groove (605a). A second rotating shaft (610) is rotatably connected to the second sliding support part (611a). The second passive extrusion roller (603) is connected to the second rotating shaft (610).

8. The stainless steel bearing processing device as described in claim 7, characterized in that: It also includes a roller machining assembly (800), which includes a machining housing (808) with an openable hatch (812) connected to the machining housing (808). A machining driver (803) is fixedly connected to the outside of the machining housing (808), and a horizontally arranged moving rod (804) capable of reciprocating linear motion is connected to the machining driver (803). One end of the moving rod (804) extending into the machining housing (808) is fixed. An insulated movable plate (802) is connected to the processing box (808), which is internally connected to an upper processing plate (806) and a lower processing plate (801) spaced apart in the height direction. The lower processing plate (801) has a sliding groove (801a) at its upward-facing end. The lower side of the movable rod (804) can slide left and right along the lower processing plate (801) below the sliding groove (801a). The movable plate (802) has a placement groove (802a) at its upward-facing end. The roller (300) has a connecting annular groove (301). When the front and rear ends of the roller (300) are respectively attached to the lower processing plates (801) at the front and rear ends of the sliding groove (801a), the roller (300) is inserted into the moving plate (802) through the placement groove (802a). The outer diameter of the placement groove (802a) is larger than the outer diameter of the roller (300) at the connecting annular groove (301). The processing box (808) is equipped with an air storage tank (816) and a vacuum pump. The machining housing (808) is connected to an intake pipe (818) and an exhaust pipe (813). An intake control valve (817) is connected to the intake pipe (818), and an exhaust control valve (814) is connected to the exhaust pipe (813). The ends of the intake pipe (818) and the exhaust pipe (813) away from the machining housing (808) are respectively connected to an air storage tank (816) and a vacuum pump (815).

9. The stainless steel bearing processing device as described in claim 8, characterized in that: The upper processing plate (806) and the lower processing plate (801) are respectively connected to the first power rod (809) and the second power rod (810) with opposite polarities.

10. A method for machining bearings using the machining apparatus as described in claim 9, characterized in that: Includes the following steps, After heating, the first stainless steel sleeve is fitted onto the first active extrusion roller (507) at the first extrusion ring groove (507a). The first stainless steel sleeve is flush with both sides of the first extrusion ring groove (507a) in the axial direction. The first extrusion driver (505) is started, causing the first lifting rod (504) to move in the direction of the first active extrusion roller (507). The first passive extrusion roller (503) presses the first stainless steel sleeve onto the first active extrusion roller (507). The first processing motor (501) is started. When the connecting shaft (508) rotates, the first connecting shaft (508) drives the first stainless steel sleeve to rotate via the first active extrusion roller (507). When the inner edge of the first stainless steel sleeve is extruded into a boss with the same shape as the first processing annular groove (507b), the first processing motor (501) stops operating, causing the first extrusion driver (505) to reverse, and the first lifting rod (504) moves away from the location of the first active extrusion roller (507). When resetting, the first extrusion driver (505) stops operating, forming the first semi-finished product. The first semi-finished product is clamped and its inner and outer edges are ground. After grinding, it is cut into several outer rings (100). After heating, the second stainless steel sleeve is fitted onto the second active extrusion roller (607) at the second extrusion ring groove (607a). The second stainless steel sleeve is flush with both sides of the second extrusion ring groove (607a) in the axial direction. The second extrusion driver (606) is started, causing the second lifting rod (604) to move in the direction of the second active extrusion roller (607). The second passive extrusion roller (603) presses the second stainless steel sleeve onto the second active extrusion roller (607). The second processing motor (601) is started, and the second connecting... When the connecting shaft (608) rotates, the second connecting shaft (608) drives the second stainless steel sleeve to rotate via the second active extrusion roller (607). When the outer edge of the second stainless steel sleeve is extruded into a boss with the same shape as the second processing ring groove (603a), the second processing motor (601) stops operating, causing the second extrusion driver (606) to reverse, and the second lifting rod (604) moves away from the location of the second active extrusion roller (607). When resetting, the second extrusion driver (606) stops operating, forming the second semi-finished product. The second semi-finished product is clamped and its inner and outer edges are ground. After grinding, it is cut into several inner rings (400). The outer ring (100) and inner ring (400) are nitrided using an inner and outer ring reinforcement component (700); Several rollers (300) are placed one by one into the placement trough (802a), with the front and rear sides of the rollers (300) respectively attached to the lower processing plate (801). The hatch (812) is closed, sealing the processing chamber (808). Vacuum pump two (815) is activated to evacuate the processing chamber (808). After reaching the required vacuum level, exhaust control valve two (814) is closed, and intake control valve two (817) is opened, allowing nitrogen stored in the gas tank to enter the processing chamber (808). The processing drive (803) is started, causing the moving rod (804) to reciprocate. Linear motion drives the moving plate (802) to perform reciprocating linear motion. The moving plate (802) drives the roller (300) to roll. The first power rod (809) and the second power rod (810) are connected to the power source. The upper processing plate (806) and the lower processing plate (801) discharge. After the roller (300) contacts the discharge, it is nitrided. When the nitriding is completed, the processing driver (803) stops operating. The second air intake control valve (817) is closed, and the second exhaust valve (807) is opened. When the internal and external pressures are balanced, the hatch (812) is opened, and the nitrided roller (300) is taken out. The cage (200) is installed outside the outer intermediate annular groove (401) on the outer side of the inner ring (400). The roller (300) is placed inside the outer intermediate annular groove (401) on the outer side of the inner ring (400). The connecting annular groove (301) in the middle of the roller (300) matches the arc-shaped mounting notch (201) of the cage (200). The roller (300) is placed in liquid nitrogen for cooling. The outer ring (100) is placed in hot oil for heating. The heated outer ring (100) matches the cooled roller (300) and inner ring (400) to ensure that the roller (300) is inserted into the inner intermediate annular groove (101) on the inner side of the outer ring (100).

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