Bearing retainer finish machining equipment based on water jet deburring collaborative structure

Abstract

The invention relates to the technical field of bearing finish machining equipment, and discloses bearing retainer finish machining equipment based on a water jet deburring collaborative structure, which comprises a machine table with a rack mounted at the upper end, a mounting plate arranged on the left side of the rack, a water jet part arranged on the mounting plate, and sliding rails symmetrically mounted at the front and back of the upper end of the machine table, a sliding bottom plate is slidably mounted on the front sliding rail and the rear sliding rail through electric sliding blocks, and a containing table is mounted at the upper end of the sliding bottom plate. The bearing retainer finish machining equipment based on the water jet deburring collaborative structure can effectively solve the problems that in the prior art, deburring and structure finishing processes of finish machining equipment are mostly designed in a separated mode, a retainer is likely to be collided in the transferring process, new damage is generated on the finished surface, and the service life of the retainer is prolonged. Or the subsequent finishing precision is influenced by the deviation of the positioning reference; the whole processing period is prolonged by the waiting time between the working procedures; and in addition, the problem that dead angle burrs are omitted due to the incomplete contact area of a traditional deburring tool is solved.

Description

Technical Field

[0001] This invention relates to the field of bearing precision machining equipment technology, specifically to a bearing cage precision machining equipment based on a water jet deburring synergistic structure. Background Technology

[0002] As a core component of a bearing, the bearing cage's main function is to evenly separate the rolling elements inside the bearing, preventing direct friction and collision between them, and guiding the rolling elements to move stably along the inner and outer raceways. This directly affects the bearing's rotational accuracy, operational stability, and service life. In high-end equipment manufacturing, the precision requirements for bearing cages are extremely stringent. Not only must the cage window dimensions and wall thickness tolerances be controlled within the micrometer level, but its surface and window edges must also be free of burrs, flash, and other defects. The manufacturing of bearing cages involves multiple processes, including stamping, machining, heat treatment, and finishing. Among these, the finishing stage is crucial in determining its final precision and surface quality.

[0003] To address this issue, this application designs a bearing cage finishing equipment based on a waterjet deburring synergistic structure. Existing finishing equipment typically employs a separate design for deburring and structural finishing processes. The bearing cage is first processed at a separate deburring station before being transferred to the structural finishing station. Firstly, during transfer, the cage is easily damaged, causing new damage to the already finished surface, or affecting subsequent finishing accuracy due to positioning datum deviation. Secondly, the waiting time between each process extends the overall processing cycle, making it difficult to match the mass production needs of high-end bearings in terms of production efficiency. Furthermore, since the bearing cage's pockets, inner and outer diameter transition surfaces, and other structures are mostly irregular curved surfaces, traditional deburring tools may miss burrs in hard-to-reach areas due to incomplete contact area. Summary of the Invention

[0004] To address the aforementioned shortcomings of existing technologies, this invention provides a bearing cage finishing equipment based on a waterjet deburring synergistic structure. This effectively solves the problems of existing technologies where deburring and structural finishing processes are often separate designs. During transport, the cage is easily damaged by impacts, leading to new damage to the already finished surface, or affecting subsequent finishing accuracy due to positioning datum deviations. Furthermore, the extended waiting time between processes prolongs the overall processing cycle, making it difficult to match the mass production needs of high-end bearings in terms of production efficiency. Additionally, traditional deburring tools may miss burrs in hard-to-reach areas due to incomplete contact area.

[0005] To achieve the above objectives, the present invention provides the following technical solution: This invention provides a bearing cage finishing equipment based on a waterjet deburring synergistic structure, comprising: The machine base is mounted on the upper part with a frame. A mounting plate is set on the left side of the frame. A water jet section is set on the mounting plate. Slide rails are symmetrically mounted on the upper part of the machine base. A sliding base plate is slidably mounted on the two slide rails through an electric slider. A placement platform is mounted on the upper part of the sliding base plate. The placement platform consists of a chassis and a semi-circular plate. A co-grinding section is set on both the sliding base plate and the placement platform. A finishing section is set on the mounting plate. The collaborative grinding unit includes a rotating shaft that is rotatably installed on the sliding base plate and the placement platform. A cover plate that is rotatably connected to the placement platform is fixedly sleeved on the upper side of the outer wall of the rotating shaft. Limiting slide rods are symmetrically installed on the upper end of the chassis of the placement platform. Different shaped cams are slidably sleeved on the limiting slide rods on both sides and the outer wall of the rotating shaft. A coarse grinding group is set on the placement platform and the cover plate. The finishing section includes an extension plate installed at the left end of the mounting plate. Mounting plates are symmetrically arranged on the lower side of the extension plate. Several connecting blocks are installed between the mounting plates on the upper and lower sides. The finishing assembly is installed on the mounting plates on the upper and lower sides.

[0006] Furthermore, the coarse grinding assembly includes several receiving cavities opened on the outer wall of the cover plate. Magnetic suction seats are slidably installed on the inner wall of the receiving cavities via tension springs. A push rod is installed at the end of the magnetic suction seat facing the irregular cam, and the push rod slides through the cover plate.

[0007] Furthermore, the coarse grinding assembly also includes coarse grinding rods located on the side of several magnetic seats away from the irregular cam. A magnetic rod is embedded in the middle of the coarse grinding rod and is magnetically connected to the corresponding magnetic seat through the magnetic rod. An electromagnet is embedded on the inner wall of the cover plate corresponding to the irregular cam. The lower end of the chassis of the placement platform and the inner wall of the right front side of the semi-annular plate are provided with mounting grooves corresponding to the receiving cavities. The upper end of the sliding base plate is provided with a docking groove connected to the mounting groove. The inner walls of the mounting groove and the docking groove are slidably mounted with a matching reset plate through a compression spring.

[0008] Furthermore, the docking and finishing assembly includes a gear that is rotatably mounted between two mounting plates. Several support shafts are rotatably mounted on the upper end of the lower mounting plate. A grinding rod is mounted on the lower end of the support shaft, and a passive gear ring is fixedly sleeved on the upper end of the support shaft. All the passive gear rings mesh with the gear.

[0009] Furthermore, several rectangular grooves are provided on the upper side of the outer wall of the rotating shaft. A snap-fit ​​plate is slidably installed on the inner wall of the rectangular groove by a compression spring. Both the upper and lower ends of the snap-fit ​​plate are wedge-shaped structures. The gear and the mounting plate on the lower side are provided with clearance holes. Several snap-fit ​​grooves are provided on the inner wall of the clearance hole of the gear.

[0010] Furthermore, the water jet section includes a high-pressure pump unit located at the left end of the mounting plate and mounted via a mounting base, and the high-pressure pump unit is mounted through the extension plate, with a high-pressure nozzle installed at the lower end of the high-pressure pump unit.

[0011] Furthermore, a servo motor is mounted on the inner wall of the lower end of the sliding base plate via a motor mount. The output shaft of the servo motor is fixedly connected to the rotating shaft. A pneumatic push rod is mounted on the upper end of the extension plate. The telescopic end of the pneumatic push rod slides through the extension plate and is fixedly connected to the mounting plate on the upper side.

[0012] Furthermore, the frame is equipped with a bidirectional actuator for driving the mounting plate to move in both directions, and two limiting rings of different diameters are installed on the upper end of the chassis of the placement platform between the semi-annular plate and the cover plate.

[0013] The technical solution provided by this invention has the following advantages compared with the prior art: This invention provides a bearing cage finishing device based on a waterjet deburring synergistic structure. High-pressure water jets are sprayed from high-pressure nozzles onto the grinding area of ​​the inner wall of the corresponding pocket of the bearing cage, achieving waterjet deburring of the inner wall of the pocket. The high-pressure water jets can promptly remove burrs and abrasive particles generated during rough grinding, preventing secondary scratches. Furthermore, a bidirectional actuator controls the mounting plate to reciprocate up and down, causing the mounting plate to drive the high-pressure nozzles in this motion. This ensures a more comprehensive waterjet deburring of the inner wall of the bearing cage pocket, avoiding the problem of missed burrs in dead corners caused by the irregular curved surfaces of the bearing cage pockets and inner / outer diameter transition surfaces due to incomplete contact area in traditional deburring tools.

[0014] The servo motor continues to control the rotating shaft, which drives the gears to rotate through several snap-fit ​​plates. Several passive gear rings drive the corresponding precision grinding rods to rotate through their respective support shafts. The outer walls of the precision grinding rods will make uniform contact with the inner walls of the corresponding pockets of the bearing cage, thereby achieving the effect of precision finishing and deburring. During the grinding process, the water jet section can be controlled to work continuously to remove the fine grinding debris generated during the finishing process, ensuring surface quality. This avoids the problem that traditional precision machining equipment often has a separate design for deburring and structural finishing processes. During the transfer process, the cage is easily bumped, causing new damage to the already finished surface, or the positioning reference deviation affects the subsequent finishing accuracy. The waiting time between processes prolongs the overall processing cycle, and the production efficiency is difficult to match the mass production needs of high-end bearings. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are merely some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without any creative effort.

[0016] Figure 1 This is a schematic diagram of the three-dimensional structure in an embodiment of the present invention; Figure 2 This is a schematic diagram of a partial three-dimensional cross-section in an embodiment of the present invention; Figure 3 For the present invention Figure 2 Enlarged view of point X in the middle; Figure 4 This is a schematic diagram of the three-dimensional separation of the mounting plate, water jet section, and finishing section in an embodiment of the present invention; Figure 5 This is a schematic diagram of the three-dimensional separation of the placement platform and the collaborative grinding section in an embodiment of the present invention; Figure 6 This is a schematic diagram of the three-dimensional separation of the irregular cam and the rough grinding group in an embodiment of the present invention; Figure 7 This is a schematic diagram of a partial three-dimensional cross-section of the placement platform and cover plate in an embodiment of the present invention; Figure 8 This is a schematic diagram of a partial three-dimensional cross-section of the cover plate in an embodiment of the present invention; Figure 9 This is a schematic diagram of a partial three-dimensional cross-section of the gear in an embodiment of the present invention; Figure 10 This is a schematic diagram of the three-dimensional separation of the rotating shaft and the snap-fit ​​plate in an embodiment of the present invention.

[0017] The labels in the diagram represent: 1. Machine base; 2. Frame; 3. Mounting plate; 4. Bidirectional actuator; 5. Water jet section; 51. High-pressure pump set; 52. High-pressure nozzle; 6. Sliding base plate; 7. Placement platform; 8. Cooperative grinding section; 81. Rotating shaft; 811. Snap-fit ​​plate; 82. Cover plate; 83. Limiting slide rod; 84. Irregular cam; 85. Rough grinding assembly; 851. Magnetic suction seat; 852. Push rod; 853. Rough grinding rod; 854. Electromagnet; 855. Matching reset plate; 9. Fine finishing section; 91. Extension plate; 92. Mounting plate; 93. Connecting block; 94. Docking fine finishing assembly; 941. Gear; 942. Support shaft; 943. Fine grinding rod; 944. Passive gear ring; 10. Servo motor; 11. Pneumatic push rod; 12. Limiting ring. Detailed Implementation

[0018] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0019] The present invention will be further described below with reference to embodiments.

[0020] Example: Please see Figures 1-10 This invention provides a technical solution: a bearing cage finishing equipment based on a waterjet deburring synergistic structure, comprising: The machine base 1 is equipped with a frame 2 at the top. A mounting plate 3 is provided on the left side of the frame 2. A water jet section 5 is provided on the mounting plate 3. Slide rails are symmetrically installed at the front and back of the upper end of the machine base 1. A sliding base plate 6 is slidably installed on the front and back slide rails through an electric slider. A placement platform 7 is installed on the upper end of the sliding base plate 6. The placement platform 7 consists of a chassis and a semi-circular plate. A co-grinding section 8 is provided on both the sliding base plate 6 and the placement platform 7. A finishing section 9 is provided on the mounting plate 3. The collaborative grinding unit 8 includes a rotating shaft 81 that is rotatably installed on the sliding base plate 6 and the placement table 7. A cover plate 82 that is rotatably connected to the placement table 7 is fixedly sleeved on the upper side of the outer wall of the rotating shaft 81. The cover plate 82 is set with the opening facing downward. Limiting slide rods 83 are symmetrically installed on the upper end of the chassis of the placement table 7. The limiting slide rods 83 on both sides and the outer wall of the rotating shaft 81 are slidably sleeved with irregular cams 84. The upper end of the irregular cams 84 has a wedge-shaped structure, and the lower end of the irregular cams 84 is connected to the placement table 7 through a buffer spring. A coarse grinding group 85 is set on the placement table 7 and the cover plate 82. The finishing section 9 includes an extension plate 91 installed at the left end of the mounting plate 3. Mounting discs 92 are symmetrically arranged on the lower side of the extension plate 91. Several connecting blocks 93 are installed between the mounting discs 92 on the upper and lower sides. The connecting blocks 93 are evenly distributed in a circle. A docking finishing assembly 94 is arranged on the mounting discs 92 on the upper and lower sides.

[0021] The coarse grinding assembly 85 includes several receiving cavities opened on the outer wall of the cover plate 82. The several receiving cavities are evenly distributed in a circle. A magnetic seat 851 is slidably installed on the inner wall of the receiving cavity by a tension spring. The end of the magnetic seat 851 away from the irregular cam 84 has an arc-shaped groove structure. A push rod 852 is installed on the end of the magnetic seat 851 facing the irregular cam 84. The push rod 852 slides through the cover plate 82, and the end of the push rod 852 away from the magnetic seat 851 has a semi-circular head structure.

[0022] The coarse grinding assembly 85 also includes coarse grinding rods 853 located on the side of several magnetic seats 851 away from the irregular cam 84. A magnetic rod is embedded in the middle of the coarse grinding rod 853 and is magnetically connected to the corresponding magnetic seat 851 through the magnetic rod. An electromagnet 854 is embedded on the inner wall of the cover plate 82 corresponding to the irregular cam 84. The electromagnet 854 has a ring structure. The lower end of the chassis of the placement platform 7 and the inner wall of the right front side of the semi-annular plate are provided with a mounting groove for the corresponding receiving cavity. The upper end of the sliding base plate 6 is provided with a docking groove that connects to the mounting groove. The inner walls of the mounting groove and the docking groove are slidably mounted with a matching reset plate 855 through a compression spring. The upper part of the matching reset plate 855 located outside the mounting groove has a wedge structure and the two side walls are rounded.

[0023] The precision finishing assembly 94 includes a gear 941 that is rotatably mounted between two mounting plates 92. Several support shafts 942 are rotatably mounted through the upper end of the lower mounting plate 92. The support shafts 942 are evenly distributed in a circle and are staggered with several connecting blocks 93. A precision grinding rod 943 is mounted on the lower end of the support shaft 942. A passive gear ring 944 is fixedly sleeved on the upper end of the support shaft 942. The passive gear rings 944 mesh with the gear 941.

[0024] The upper side of the outer wall of the rotating shaft 81 is provided with several rectangular sliding grooves, which are evenly distributed around the circumference. A snap-fit ​​plate 811 is slidably installed on the inner wall of the rectangular sliding groove by a compression spring. The upper and lower ends of the snap-fit ​​plate 811 are wedge-shaped structures. The gear 941 and the mounting plate 92 on the lower side are provided with a clearance hole. The inner wall of the clearance hole of the gear 941 is provided with several snap-fit ​​grooves, which are evenly distributed around the circumference.

[0025] The water jet section 5 includes a high-pressure pump assembly 51 mounted on the left end of the mounting plate 3 via a mounting base, and the high-pressure pump assembly 51 is mounted through the extension plate 91. A high-pressure nozzle 52 is mounted on the lower end of the high-pressure pump assembly 51.

[0026] A servo motor 10 is mounted on the inner wall of the lower end of the sliding base plate 6 via a motor mount. The output shaft of the servo motor 10 is fixedly connected to the rotating shaft 81. A pneumatic push rod 11 is mounted on the upper end of the extension plate 91. The telescopic end of the pneumatic push rod 11 slides through the extension plate 91 and is fixedly connected to the mounting plate 92 on the upper side.

[0027] The frame 2 is equipped with a bidirectional actuator 4 for driving the mounting plate 3 to move in both directions. Two limiting rings 12 of different diameters are installed on the upper end of the chassis of the placement platform 7 between the semi-annular plate and the cover plate 82.

[0028] In practice: First, the electric slider in this application can drive the sliding base plate 6 to slide back and forth along the front and rear slide rails. The bidirectional actuator 4 is used to drive the mounting plate 3 to move in both directions. It can adjust the spray area of ​​the high-pressure nozzle 52 up and down, and can also adjust the position of the water jet section 5 and the finishing section 9 to avoid them during the left and right movement of the cooperating grinding section 8. The cooperating grinding section 8 is used to rough grind and deburr the bearing cage. The water jet section 5 is used to assist the cooperating grinding section 8 in water jet deburring the bearing cage. The finishing section 9 is used to fine grind and deburr the bearing cage.

[0029] During the initial clamping stage, it should be noted that the sliding base plate 6 is initially located on the far left of the machine tool 1. At this time, the upper end of the placement table 7 is unobstructed, which facilitates the placement of the bearing cage. First, the operator places the bearing cage to be processed onto the chassis of the placement table 7, so that the inner and outer walls of the bearing cage are respectively attached to the corresponding limiting rings 12, completing the initial positioning and placement of the bearing cage. During the placement process, the operator also needs to align the several pockets of the bearing cage with the several receiving cavities on the cover plate 82 one by one, so as to facilitate the smooth ejection of the rough grinding rod 853. After the lower end face of the bearing cage is tightly attached to the chassis, the sliding base plate 6 is controlled by the electric slider to move to the right along the front and rear slide rails until the sliding base plate 6 drives the placement table 7, the bearing cage and the cooperating grinding part 8 to move synchronously to directly below the mounting plate 92. Then, the bidirectional actuator 4 controls the mounting plate 3 to move to the appropriate position so that the nozzle of the high-pressure nozzle 52 faces the inner wall of the pocket of the bearing cage.

[0030] During the rough grinding and deburring stage, it should be noted that several rough grinding rods 853 are initially magnetically connected to their corresponding magnetic seats 851. Under the action of the tension spring, both the rough grinding rods 853 and the magnetic seats 851 are initially located in their respective receiving cavities. At this time, the height of the upper end face of the irregular cam 84 is lower than the height of the several push rods 852. It should also be noted that since the pocket of the bearing cage is usually an arc-shaped limiting structure, the diameter of the rough grinding rod 853 is slightly smaller than the arc diameter of the pocket of the bearing cage. The rough grinding rod 853 can be squeezed into the pocket of the bearing cage for subsequent grinding and deburring work. The outer wall of the rough grinding rod 853 and the inner wall of the pocket of the bearing cage are clearance fit.

[0031] Then, the electromagnet 854 is activated. The electromagnet 854 will magnetically attract the irregularly shaped cam 84, which will move upward along the two limiting slide rods 83 and the rotating shaft 81 until the upper end of the irregularly shaped cam 84 is tightly magnetically connected to the electromagnet 854. During this process, the upper wedge-shaped surface of the protruding end of the irregularly shaped cam 84 will simultaneously abut against several corresponding push rods 852. These push rods 852 will then drive their corresponding magnetic seats 851 to extend outward from the cover plate 82, while the positions of the remaining push rods 852 remain unchanged. After the upper end of the irregularly shaped cam 84 is tightly magnetically connected to the electromagnet 854, the upper end of the irregularly shaped cam 84 will movably fit against the inner wall of the cover plate 82, and the side wall of the protruding end of the irregularly shaped cam 84 will simultaneously abut against several corresponding push rods 852. 2. When the magnetic base 851 extends to its maximum distance, the corresponding coarse grinding rod 853 will move synchronously to the outside of the cover plate 82. During this period, the corresponding coarse grinding rod 853 will be inserted into the corresponding pocket of the bearing retainer. At this time, the outer wall of the coarse grinding rod 853 will roll and contact the inner wall of the semi-annular plate of the placement platform 7. After the coarse grinding rod 853 is inserted into the corresponding pocket of the bearing retainer, the coarse grinding rod 853 will disengage from the corresponding magnetic base 851 and leave a gap. At this time, the arc-shaped groove structure of the magnetic base 851 still limits the corresponding coarse grinding rod 853 to prevent excessive positional displacement and to prepare for the subsequent restoration of the magnetic connection with the corresponding coarse grinding rod 853.

[0032] Then, the servo motor 10 controls the rotating shaft 81 to drive the cover plate 82 to rotate. The frame 2 will drive the corresponding magnetic base 851 to rotate synchronously through several push rods 852. Since the arc-shaped structure of the aforementioned magnetic bases 851 will still limit the corresponding coarse grinding rods 853, the magnetic bases 851 will push the corresponding coarse grinding rods 853 to rotate synchronously, thereby achieving the effect that the coarse grinding rods 853 together drive the bearing cage to rotate synchronously around the rotating shaft 81. At the same time, the coarse grinding rods 853... 3 will roll along the inner wall of the semi-circular plate of the placement platform 7, causing several coarse grinding rods 853 to rotate within the pockets corresponding to the bearing cage, thereby achieving the effect of coarse grinding rods 853 coarsely grinding and deburring the inner wall of the pockets corresponding to the bearing cage. It should be noted that the coarse grinding rods 853 are in clearance fit with the pockets corresponding to the bearing cage, allowing for sufficient grinding allowance. It is only necessary to coarsely grind the larger and difficult-to-remove burrs on the inner wall of the pockets corresponding to the bearing cage, without the need for precise control of the position of the coarse grinding rods 853.

[0033] During the water jet deburring stage, it should be noted that the reset plate 855 is initially positioned at the upper end of the mounting groove under the action of the compression spring. As the cover plate 82 rotates, several coarse grinding rods 853 will roll sequentially along the inner wall of the semi-annular plate of the placement platform 7 to the reset plate 855. Under the abutment of the reset plate 855, the coarse grinding rods 853 will be abutted sequentially and withdrawn towards the side of the irregular cam 84 from the corresponding pocket of the bearing retainer, so that the coarse grinding rods 853 sequentially restore the magnetic attraction connection with the corresponding magnetic seat 851. And due to the irregular shape... The irregular structure of the cam 84 corresponds to the reset plate 855, where there is no longer a protruding structure to abut the corresponding push rod 852. Under the action of the tension spring, the push rod 852 here will drive the corresponding magnetic seat 851 and the coarse grinding rod 853 to retract into the corresponding receiving cavity simultaneously. As the convexity of the side wall of the irregular cam 84 changes, the retraction length of several push rods 852 will also change adaptively. When several push rods 852 move sequentially to the area directly opposite the high pressure nozzle 52, the corresponding coarse grinding rod 853 will completely retract into the corresponding receiving cavity.

[0034] As the cover plate 82 continues to rotate, several push rods 852 will move sequentially to the protruding structure of the irregular cam 84, and after being pushed by it, they will drive the corresponding magnetic seat 851 and coarse grinding rod 853 to gradually extend out of the receiving cavity. At this time, several coarse grinding rods 853 will be inserted back into the pocket corresponding to the bearing cage to return to their original position, and the inner wall of the pocket corresponding to the bearing cage will be coarsely ground and deburred repeatedly.

[0035] Meanwhile, it should be noted that the nozzle of the high-pressure nozzle 52 can be a fan-shaped nozzle, with the high-pressure water flow spreading in a fan shape, covering a wide range and suitable for curved surfaces and areas with dense burrs. The water in the external water tank is pressurized to a set pressure by the high-pressure pump unit 51, and then high-pressure water is sprayed through the high-pressure nozzle 52 onto the grinding area of ​​the inner wall of the bearing cage corresponding to the pocket, thereby achieving the effect of water jet deburring of the inner wall of the bearing cage corresponding to the pocket. Furthermore, the high-pressure water flow can promptly remove burrs and abrasive particles generated during rough grinding, avoiding secondary scratches. It should be noted that to ensure the water jet deburring effect on the inner wall of the bearing cage pocket... If the flow is sufficiently uniform, it is also necessary to coordinate with the bidirectional actuator 4 to control the mounting plate 3 to move up and down reciprocatingly, so that the mounting plate 3 drives the high-pressure nozzle 52 to move up and down reciprocatingly, thereby achieving a more comprehensive water jet deburring operation on the inner wall of the bearing cage pocket. This avoids the problem that traditional deburring tools may miss burrs due to incomplete contact area, since the bearing cage pocket and the transition surface between the inner and outer diameters are mostly irregular curved surfaces. In addition, sewage and grinding debris can flow into the water collection tank inside the machine 1 (not shown in the figure) through the external baffle and drainage channel, and then be recycled after sedimentation and filtration to save water resources.

[0036] During the finishing and deburring stage, after both rough grinding and water jet deburring are completed, the control electromagnet 854 stops working. After the shaped cam 84 loses its magnetic attraction, it will move smoothly downward along the limit slide bar 83 under the action of the buffer spring. Several push rods 852 will lose the pushing force of the shaped cam 84. As several rough grinding rods 853 continue to roll along the inner wall of the semi-annular plate of the placement platform 7 to the mating reset plate 855, under the action of the mating reset plate 855 and the action of the tension spring, several rough grinding rods 853 will be pushed out of the bearing retainer into the pocket corresponding to the shaped cam 84, so that several rough grinding rods 853 will restore the magnetic attraction connection with the corresponding magnetic seat 851 in turn. Several push rods 852 will drive the corresponding magnetic seat 851 and the rough grinding rods 853 to retract into the corresponding receiving cavity simultaneously, until all the rough grinding rods 853 have retracted into the corresponding receiving cavity.

[0037] Next, the pneumatic push rod 11 drives the upper mounting plate 92 to move downwards. The upper mounting plate 92, through several connecting blocks 93, drives the lower mounting plate 92 and the mating finishing assembly 94 to move downwards synchronously until the upper end of the rotating shaft 81 extends into the clearance hole between the gear 941 and the lower mounting plate 92. During this process, the wedge-shaped structures of several snap-fit ​​plates 811 will be squeezed and retract into their corresponding rectangular grooves. The lower mounting plate 92 will then drive several grinding rods 943 to move downwards synchronously and insert them into the bearings. Inside the corresponding pocket of the bearing cage, several fine grinding rods 943 are movably attached to the inner wall of the corresponding pocket of the bearing cage. The upper end of the mounting plate 92 on the lower side is also movably attached to the cover plate 82. As the servo motor 10 continues to drive the rotating shaft 81 to rotate, several snap-fit ​​plates 811 will be aligned with the corresponding snap-fit ​​grooves on the gear 941. The snap-fit ​​plates 811 will extend under the action of the compression spring and snap into the corresponding snap-fit ​​grooves, thereby achieving the effect of quick snap-fit ​​between the rotating shaft 81 and the gear 941.

[0038] The servo motor 10 continues to control the rotating shaft 81, which drives the gear 941 to rotate through several snap-fit ​​plates 811. The gear 941 then transmits power to several passive gear rings 944, which in turn drive the corresponding grinding rods 943 to rotate through their respective support shafts 942. Simultaneously, the cover plate 82 continues to rotate around the rotating shaft 81, while the bearing cage remains stationary. The outer walls of the grinding rods 943 make uniform contact with the inner walls of the corresponding pockets of the bearing cage, thus achieving the effect of fine finishing and deburring. During the grinding process, the water jet section 5 can be controlled to work continuously to remove fine grinding debris generated during finishing, ensuring surface quality. This avoids the problem that traditional finishing equipment often uses a separate design for deburring and structural finishing processes, which can easily cause damage to the already finished surface during transport, or affect the subsequent finishing accuracy due to positioning reference deviations. The waiting time between processes also prolongs the overall processing cycle, making it difficult for production efficiency to meet the mass production needs of high-end bearings.

[0039] During the removal stage, after the fine finishing and deburring work is completed, the pneumatic push rod 11 is controlled to drive the upper mounting plate 92 to move upward. The upper mounting plate 92, through several connecting blocks 93, drives the lower mounting plate 92 and the docking fine finishing assembly 94 to move upward synchronously. During this period, the wedge-shaped structures of several snap-fit ​​plates 811 will be squeezed again and withdraw from the snap-fit ​​grooves, and retract into the corresponding rectangular slide grooves until the upper end of the rotating shaft 81 exits the gear 941 and the clearance hole of the lower mounting plate 92. The lower mounting plate 92 will drive several fine grinding rods 943 to move upward synchronously to return to their original positions. Finally, the sliding base plate 6 is controlled by the electric slider to move to the left along the front and rear slide rails to return to its original position. The processed bearing cage can then be removed by the operator. This application integrates three processes: rough grinding and deburring, water jet deburring, and fine finishing grinding. The entire process does not require disassembly and assembly of fixtures, avoiding the waste of time from multiple clamping operations, and is easy to operate.

[0040] In summary, this application has the following advantages: Advantage 1: In the rough grinding and deburring stage, when the electromagnet 854 is activated, the electromagnet 854 will magnetically attract the irregular cam 84 and move it upward along the two limiting slide rods 83 and the rotating shaft 81 until the upper end of the irregular cam 84 is tightly magnetically connected to the electromagnet 854. The side wall of the protruding end of the irregular cam 84 will simultaneously abut against the corresponding push rods 852, causing them to extend to their maximum distance. The corresponding coarse grinding rods 853 will be respectively inserted into the corresponding pockets of the bearing cage. The coarse grinding rods 853 will disengage from the corresponding magnetic seats 851, leaving a gap. At this time, the arc-shaped groove structure of the magnetic seats 851 still limits the corresponding coarse grinding rods 853 to prevent them from excessively shifting in position.

[0041] Secondly, the servo motor 10 controls the rotating shaft 81 to drive the cover plate 82 to rotate. The frame 2 will drive the corresponding magnetic seat 851 to rotate synchronously through several push rods 852. At this time, the several magnetic seats 851 will push the corresponding coarse grinding rods 853 to rotate synchronously, thereby achieving the effect that several coarse grinding rods 853 jointly drive the bearing cage to rotate synchronously around the rotating shaft 81. At the same time, several coarse grinding rods 853 will roll along the inner wall of the semi-annular plate of the placement platform 7, so that several coarse grinding rods 853 will rotate in the pockets corresponding to the bearing cage, thereby achieving the effect of coarse grinding rods 853 rough grinding and deburring the inner wall of the pockets corresponding to the bearing cage.

[0042] Thirdly, during the water jet deburring stage, as the cover plate 82 rotates, several coarse grinding rods 853 will roll sequentially along the inner wall of the semi-annular plate of the placement platform 7 to the mating reset plate 855. The coarse grinding rods 853 will be pushed out of the corresponding pocket of the bearing cage by the irregular cam 84. The several push rods 852 will move sequentially to the protruding structure of the irregular cam 84, and after being pushed by it, they will drive the corresponding magnetic seat 851 and coarse grinding rods 853 to gradually extend out of the receiving cavity. At this time, the coarse grinding rods 853 will be stuck back into the corresponding pocket of the bearing cage to return to their original position, and the inner wall of the corresponding pocket of the bearing cage will be coarsely ground and deburred repeatedly.

[0043] Fourthly, high-pressure water jets are sprayed onto the grinding area of ​​the inner wall of the bearing cage corresponding to the pocket through the high-pressure nozzle 52, thereby achieving the effect of water jet deburring of the inner wall of the bearing cage corresponding to the pocket. The high-pressure water jet can also promptly remove burrs and abrasive particles generated by rough grinding, avoiding secondary scratches. It is also necessary to cooperate with the bidirectional actuator 4 to control the mounting plate 3 to move up and down, so that the mounting plate 3 drives the high-pressure nozzle 52 to move up and down, thereby achieving a more comprehensive water jet deburring of the inner wall of the bearing cage pocket. This avoids the problem that traditional deburring tools may miss burrs in dead corners due to incomplete contact area, since the structure of the bearing cage pocket and the transition surface between the inner and outer diameters are mostly irregular curved surfaces.

[0044] Fifthly, during the fine finishing and deburring stage, the pneumatic push rod 11 drives the upper mounting plate 92 to move downwards until the upper end of the rotating shaft 81 extends into the clearance hole between the gear 941 and the lower mounting plate 92. The lower mounting plate 92 will drive several fine grinding rods 943 to move downwards synchronously and insert them into the corresponding pockets of the bearing cage. As the servo motor 10 continues to drive the rotating shaft 81 to rotate, several snap-fit ​​plates 811 will align with the corresponding snap-fit ​​slots on the gear 941. The snap-fit ​​plates 811 will extend under the action of the compression spring and snap into the corresponding snap-fit ​​slots, thereby achieving the effect of quick snap-fit ​​between the rotating shaft 81 and the gear 941.

[0045] Advantage six: The servo motor 10 continues to control the rotating shaft 81, which drives the gear 941 to rotate through several snap-fit ​​plates 811. Several passive gear rings 944 will drive the corresponding fine grinding rods 943 to rotate through their respective support shafts 942. The outer walls of the fine grinding rods 943 will make uniform contact with the inner walls of the corresponding pockets of the bearing cage, thereby achieving the effect of fine finishing and deburring. During the finishing process, the water jet section 5 can be controlled to work continuously to remove the fine grinding debris generated during finishing, ensuring surface quality. This avoids the problem that the deburring and structural finishing processes of traditional finishing equipment are mostly designed separately. During the transfer process, the cage is easily bumped, causing new damage to the already finished surface, or affecting the subsequent finishing accuracy due to the deviation of the positioning reference. The waiting time between processes prolongs the overall processing cycle, and the production efficiency is difficult to match the mass production needs of high-end bearings.

[0046] Advantage 7: During the removal stage, the pneumatic push rod 11 drives the upper mounting plate 92 to move upward until the upper end of the rotating shaft 81 exits the clearance hole between the gear 941 and the lower mounting plate 92. The lower mounting plate 92 will then drive several fine grinding rods 943 to move upward synchronously to return to their original positions. Finally, the sliding base plate 6 is controlled by the electric slider to move to the left along the front and rear slide rails to return to its original position. The processed bearing cage can then be removed by the operator. This application integrates three processes: rough grinding and deburring, water jet deburring, and fine grinding. The entire process does not require disassembling and assembling the fixture, avoiding the waste of time from multiple clamping operations, and is convenient to operate.

[0047] 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 the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions will not cause the essence of the corresponding technical solutions to deviate from the protection scope of the technical solutions of the embodiments of the present invention.

Claims

1. A bearing cage finishing equipment based on a waterjet deburring synergistic structure, characterized in that, include: The machine base (1) is mounted on the upper end with a frame (2). A mounting plate (3) is provided on the left side of the frame (2). A water jet section (5) is provided on the mounting plate (3). Slide rails are symmetrically mounted on the upper end of the machine base (1). A sliding base plate (6) is slidably mounted on the two slide rails through an electric slider. A placement platform (7) is mounted on the upper end of the sliding base plate (6). The placement platform (7) consists of a chassis and a semi-circular plate. A co-grinding section (8) is provided on both the sliding base plate (6) and the placement platform (7). A finishing section (9) is provided on the mounting plate (3). The collaborative grinding unit (8) includes a rotating shaft (81) that is rotatably installed on the sliding base plate (6) and the placement table (7). A cover plate (82) that is rotatably connected to the placement table (7) is fixedly sleeved on the upper side of the outer wall of the rotating shaft (81). Limiting slide rods (83) are symmetrically installed on the upper end of the chassis of the placement table (7). A special-shaped cam (84) is slidably sleeved on the outer wall of the limiting slide rods (83) on both sides and the rotating shaft (81). A coarse grinding group (85) is provided on the placement table (7) and the cover plate (82). The finishing section (9) includes an extension plate (91) installed at the left end of the mounting plate (3). The extension plate (91) is symmetrically provided with mounting plates (92) on the lower side. Several connecting blocks (93) are installed between the mounting plates (92) on the upper and lower sides. The mounting plates (92) on the upper and lower sides are provided with a docking finishing assembly (94).

2. The bearing cage finishing equipment based on a waterjet deburring synergistic structure according to claim 1, characterized in that: The coarse grinding assembly (85) includes several receiving cavities opened on the outer wall of the cover plate (82). A magnetic suction seat (851) is slidably installed on the inner wall of the receiving cavity by a tension spring. A push rod (852) is installed on one end of the magnetic suction seat (851) facing the irregular cam (84). The push rod (852) slides through the cover plate (82).

3. The bearing cage finishing equipment based on a waterjet deburring synergistic structure according to claim 2, characterized in that: The coarse grinding assembly (85) also includes coarse grinding rods (853) located on the side away from the irregular cam (84) of several magnetic suction seats (851). A magnetic rod is embedded in the middle of the coarse grinding rod (853) and is magnetically connected to the corresponding magnetic suction seat (851) through the magnetic rod. An electromagnet (854) is embedded on the inner wall of the cover plate (82) corresponding to the irregular cam (84). The lower end of the chassis of the placement platform (7) and the inner wall of the right front side of the semi-annular plate are provided with a mounting groove. The upper end of the sliding base plate (6) is provided with a docking groove connected to the mounting groove. The inner walls of the mounting groove and the docking groove are slidably installed with a matching reset plate (855) through a compression spring.

4. The bearing cage finishing equipment based on a waterjet deburring synergistic structure according to claim 1, characterized in that: The docking and finishing assembly (94) includes a gear (941) that is rotatably mounted between two mounting discs (92). Several support shafts (942) are rotatably mounted on the upper end of the lower mounting disc (92). A grinding rod (943) is mounted on the lower end of the support shaft (942). A passive gear ring (944) is fixedly sleeved on the upper end of the support shaft (942). Several passive gear rings (944) mesh with the gear (941).

5. The bearing cage finishing equipment based on a waterjet deburring synergistic structure according to claim 4, characterized in that: The upper side of the outer wall of the rotating shaft (81) is provided with several rectangular sliding grooves, which are evenly distributed around the circumference. A snap-fit ​​plate (811) is slidably installed on the inner wall of the rectangular sliding groove by a compression spring. The upper and lower ends of the snap-fit ​​plate (811) are wedge-shaped structures. The gear (941) and the mounting plate (92) on the lower side are provided with clearance holes. Several snap-fit ​​grooves are provided on the inner wall of the clearance hole of the gear (941), which are evenly distributed around the circumference.

6. The bearing cage finishing equipment based on a waterjet deburring synergistic structure according to claim 1, characterized in that: The water jet section (5) includes a high-pressure pump assembly (51) mounted on the left end of the mounting plate (3) via a mounting base, and the high-pressure pump assembly (51) is mounted through the extension plate (91), with a high-pressure nozzle (52) installed at the lower end of the high-pressure pump assembly (51).

7. The bearing cage finishing equipment based on a waterjet deburring synergistic structure according to claim 3, characterized in that: A servo motor (10) is mounted on the inner wall of the lower end of the sliding base plate (6) via a motor mount. The output shaft of the servo motor (10) is fixedly connected to the rotating shaft (81). A pneumatic push rod (11) is mounted on the upper end of the extension plate (91). The telescopic end of the pneumatic push rod (11) slides through the extension plate (91) and is fixedly connected to the mounting plate (92) on the upper side.

8. The bearing cage finishing equipment based on a waterjet deburring synergistic structure according to claim 1, characterized in that: The frame (2) is provided with a bidirectional actuator (4) for driving the mounting plate (3) to move in both directions. The upper end of the chassis of the placement platform (7) is provided with two limiting rings (12) of different diameters between the semi-annular plate and the cover plate (82).

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