A cage slotting apparatus for robotic bearing manufacturing and method of use

Abstract

The application relates to the field of bearing retainer slotting equipment, in particular to a retainer slotting equipment for robot bearing manufacturing and a use method thereof, which comprises an equipment support, an adjuster for clamping a retainer is arranged on the left side of the equipment support, and a telescopic retainer support is movably arranged on the right side of the equipment support. The retainer slotting equipment for robot bearing manufacturing is provided with a discharging mechanism, a rubber pad at the bottom of a slotting cutter is in sealing cooperation with the surface of the retainer to form a closed cavity, the compressed gas in the cavity is stored by using a piston rod, when the slotting is completed, a gap is generated between the waste and the rubber pad, the compressed gas is rapidly discharged through the exhaust hole, the cutting waste is blown into the inside of a waste collecting box in a directional manner by using the airflow thrust, active auxiliary discharging is realized, the waste accumulation around the cutter is effectively avoided, the waste accumulation causes the cutting waste to be stuck, the processed surface to be scratched or the cutter to be damaged, the frequency of manual cleaning is reduced, and the efficiency of automatic continuous machining is remarkably improved.

Description

Technical Field

[0001] This invention relates to the field of bearing cage slotting equipment, specifically to a cage slotting device and its method of use for manufacturing robot bearings. Background Technology

[0002] As one of the core components of rolling bearings, the bearing cage plays a crucial role in uniformly separating the rolling elements, guiding them to operate normally within the bearing, and preventing them from coming into contact with each other and rubbing against each other. In the manufacturing process of robot bearings, the cage usually needs to be machined with multiple circumferentially distributed slots or pockets to accommodate the rolling elements and ensure that they have reasonable clearance. The quality of the cage slotting process directly affects the bearing's operating accuracy, vibration noise, and service life.

[0003] The following problems exist in the existing technology that have not been adequately addressed: 1. In the processing of existing grooving equipment, the positioning method of the cage in the grooving area is relatively simple, mostly relying solely on the initial alignment of the fixture to complete the positioning, lacking a structure for dynamic auxiliary limiting of the cage during tool feed. Due to the thin wall and certain elasticity of the cage, when the tool applies cutting force, the processing area is prone to tool deflection or local vibration, resulting in increased deviation of the groove size after grooving, burrs on the groove edge, and even quality defects such as out-of-round deformation of the cage; 2. During the grooving process, the waste generated by cutting or punching is often in the form of strips or sheets, which easily accumulate around the tool or embed in the gap between the cage and the fixture. Common equipment lacks an effective material discharge auxiliary mechanism, resulting in poor waste discharge. On the one hand, this may cause waste to get stuck between the tool and the cage, scratching the processed surface or causing the tool to chip. Summary of the Invention

[0004] The purpose of this invention is to provide a cage grooving device and its method for use in robot bearing manufacturing, so as to solve the problems mentioned in the background art. To achieve the above objective, this invention provides the following technical solution: a cage grooving device for robot bearing manufacturing, comprising: a device support, an adjuster for clamping the cage is installed on the left side of the device support, a retractable grooving bracket is movably installed on the right side of the device support, and a hydraulic telescopic rod is fixedly connected to the upper part of the grooving bracket;

[0005] It also includes a cutter sleeve fixedly installed at the bottom of the hydraulic telescopic rod, wherein a grooving cutter is slidably installed inside the cutter sleeve, and a material discharge mechanism is movably installed between the grooving cutter and the cutter sleeve to assist in the discharge of grooving waste.

[0006] A positioning bracket is fixedly installed at the movable end of the slotter bracket, and a limiting mechanism for auxiliary retainer positioning is movably installed between the positioning bracket and the material discharge mechanism.

[0007] Preferably, the discharge mechanism includes: a pressure sleeve that can move vertically along the bottom of the blade sleeve, and the grooving blade is movably inserted through the middle of the pressure sleeve;

[0008] A piston rod is fixedly connected to the top surface of the inner side of the tool holder, and the lower part of the piston rod is slidably disposed inside the grooving tool for gas compression;

[0009] A rubber pad is fixedly installed at the bottom of the grooving cutter and seals against the surface of the retainer, and an exhaust hole corresponding to the position of the piston rod is opened in the middle of the rubber pad.

[0010] Preferably, four guide blocks are fixedly connected to the side wall of the lower part of the blade sheath, with two guide blocks forming a group, and the two groups of guide blocks are respectively arranged on both sides of the blade sheath;

[0011] A guide rod is movably inserted through the middle of the guide block. The bottom of the guide rod is fixedly connected to the top of the pressure sleeve. A compression spring that cooperates with the guide block is movably sleeved on the lower part of the guide rod.

[0012] Preferably, a piston groove is formed in the middle of the grooving cutter, the piston rod is slidably disposed inside the piston groove, and a return spring is fixedly connected between the bottom of the piston rod and the inner bottom surface of the piston groove;

[0013] The bottom of the piston groove has a through hole that matches the exhaust port.

[0014] Preferably, the limiting mechanism includes: sliding rods symmetrically fixedly connected to both sides of the positioning bracket, and V-shaped hinge plates are slidably provided on the surfaces of the two sliding rods respectively, the upper parts of the two V-shaped hinge plates are hinged to the side wall of the pressure sleeve, and a pad is hinged between the lower parts of the two V-shaped hinge plates.

[0015] A waste collection box is fixedly installed at the bottom of the pad, and the middle of the pad has a cutting edge that matches the grooving knife;

[0016] A limiting adjustment ring is slidably set on the surface of the slide rod, and push rods are symmetrically slidably set in the middle of the positioning bracket. The two push rods are respectively movably inserted into the interior of the two slide rods, and the opposite ends of the two push rods are respectively fixedly connected to the inner walls of the two limiting adjustment rings.

[0017] A wedge plate is vertically slidably mounted on the upper part of the slotter bracket to drive the push rod to move, and a push rod is fixedly installed on the side wall of the tool sleeve to drive the wedge plate to move downward.

[0018] Preferably, the waste collection box has an internal discharge groove that matches the cutting edge, and the bottom of the waste collection box is detachably equipped with a discharge plate.

[0019] Preferably, the V-shaped hinge plate consists of a double-headed hinge block and two hinge bars, the two hinge bars being respectively hinged to both ends of the double-headed hinge block and arranged in a V-shape, and the middle part of the double-headed hinge block being slidably disposed on the surface corresponding to the slide rod;

[0020] A compression leaf spring is movably sleeved on the surface of the slide rod to drive the V-shaped hinge plate to reset and move.

[0021] The two ends of the V-shaped hinge plate are respectively fixedly connected to connecting blocks, and the connecting blocks are fixedly installed to the side walls of the corresponding pressure sleeve and pad sleeve by screws.

[0022] Preferably, a groove is provided in the middle of the left side of the positioning bracket, and the two push rods are respectively movably inserted into the two sides of the groove. The opposite end of the two push rods is set as a spherical surface that matches the bottom of the wedge plate, and a restoring spring that fits against the inner wall of the groove is movably sleeved on the surface of the push rod.

[0023] The slide rod has a mounting hole at its axial center, and the inner wall of the mounting hole has symmetrical moving grooves. The push rod is movably inserted into the mounting hole. A moving block is slidably arranged inside the moving groove. The two ends of the moving block are respectively fixedly connected to the surfaces of the adjacent push rod and the limit adjustment ring.

[0024] The limiting adjustment ring consists of a moving ring and a rotating ring. The moving ring is sleeved on the surface of the slide rod, and the inner ring of the moving ring is connected to the moving block. The rotating ring is threadedly connected to the outer ring of the moving ring, and the end of the rotating ring overlaps with the side wall of the adjacent V-shaped hinge plate to limit the movement of the V-shaped hinge plate.

[0025] The top rod is designed as an L-shaped conical rod. A conical sleeve that matches the bottom conical head of the top rod is installed on the top of the wedge plate. Guide rods are symmetrically fixedly installed on the upper part of the slotter bracket. A guide block is slidably provided on the upper part of the guide rod. The side wall of the guide block is fixedly connected to the side wall of the wedge plate. A return spring for driving the wedge plate to reset is sleeved on the lower part of the guide rod.

[0026] Preferably, the grooving device support consists of an upper support, an electric adjusting rod, and a lower support. The electric adjusting rod is fixedly installed between the upper support and the lower support and is used to adjust the distance between the upper support and the lower support.

[0027] The positioning bracket is fixedly installed on the side wall of the upper bracket. A laser positioner is installed in the middle of the groove. The signal output end of the laser positioner and the control end of the electric adjusting rod are both electrically connected to the PLC.

[0028] An electric telescopic rod for driving the grooving machine bracket to move horizontally is fixedly connected to the right side of the equipment support.

[0029] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0030] In this invention, the synchronous opposite movement of the pressure sleeve and the pad sleeve in the limiting mechanism enables bidirectional contact positioning of the area to be slotted in the cage, further suppressing the shaking and wobbling of the cage during the slotting operation, and ensuring the original roundness accuracy of the cage from both clamping and dynamic limiting perspectives.

[0031] In this invention, the discharge mechanism is designed so that the rubber pad at the bottom of the grooving cutter and the surface of the retainer form a sealed cavity. The piston rod compresses the gas stored in the cavity during its downward movement. After grooving is completed, a gap is created between the waste material and the rubber pad. The compressed gas is then quickly depressurized and ejected through the exhaust port. The airflow propels the cut waste material into the waste collection box, achieving active assisted discharge. This effectively prevents waste material from accumulating around the cutter, causing jamming, scratching the processed surface, or damaging the cutter. It also reduces the frequency of manual cleaning and significantly improves the efficiency of automated continuous processing.

[0032] In this invention, the pressure sleeve and the pad sleeve are hinged together by a V-shaped hinge plate, and a reset linkage is formed by a sliding rod and a compression spring. When the hydraulic telescopic rod drives the tool sleeve to move downward, the pressure sleeve first adheres to the outer wall of the cage under the action of the compression spring. The diamond-shaped V-shaped hinge plate synchronously drives the pad sleeve to move from the opposite side to the opposite side, so that the pressure sleeve and the pad sleeve complete the double-sided clamping and positioning of the area to be grooved before the tool feeds. Then the tool sleeve continues to move downward, driving the grooving tool to feed independently, realizing the sequential coordination of "positioning first and then grooving". This ensures the precise alignment and matching of the grooving tool and the pad sleeve cutting edge, and avoids problems such as groove size deviation and burrs caused by tool deflection or vibration.

[0033] In this invention, the combination of the limiting adjustment ring, the top rod, and the wedge plate achieves rigid locking of the bidirectional clamping mechanism composed of the pressure sleeve, the pad sleeve, and the V-shaped hinge plate when the grooving cutter enters the punching cutting stage. This directly counteracts the reverse cutting force acting on the pad sleeve during the punching process, fundamentally preventing the pad sleeve from shifting position and maintaining the clamping and positioning accuracy of the area to be grooved. This effectively prevents processing defects such as deformation and out-of-roundness of the thin-walled retainer and deviation of the groove size, significantly improving the dimensional consistency of the groove processing and the quality of the finished product. Attached Figure Description

[0034] Figure 1 This is a perspective view of the regulator and slotting bracket of the present invention;

[0035] Figure 2 This is a side view of a portion of the grooving device bracket and the tool holder of the present invention;

[0036] Figure 3 This is a side view of a portion of the pressure sleeve and gasket of the present invention;

[0037] Figure 4 This is a side sectional view of a portion of the tool holder and grooving tool of the present invention;

[0038] Figure 5 This is a side sectional view of a portion of the grooving tool and piston rod of the present invention;

[0039] Figure 6 This is a perspective view of the V-shaped hinge plate and positioning bracket of the present invention;

[0040] Figure 7 This is a cross-sectional view showing the positions of the positioning bracket and the push rod in this invention.

[0041] Figure 8 This is a cross-sectional view showing the positions of the limiting adjustment ring and the slide rod of the present invention;

[0042] Figure 9 This is a side sectional view of a portion of the sliding rod and the movable groove of the present invention;

[0043] Figure 10 This is a perspective view of a partial location of the regulator of the present invention.

[0044] In the diagram: 1. Equipment support; 2. Adjuster; 3. Grooving tool bracket; 4. Hydraulic telescopic rod; 5. Tool sleeve; 6. Grooving tool; 7. Discharge mechanism; 701. Pressure sleeve; 702. Piston rod; 703. Rubber pad; 704. Vent hole; 705. Guide block; 706. Guide rod; 707. Compression spring; 708. Piston groove; 709. Return spring; 8. Positioning bracket; 901. Limiting mechanism; 902. Slide rod; 903. V-shaped hinge plate; 904. 3. Pad; 904. Waste collection box; 905. Cutting edge; 906. Limit adjustment ring; 9061. Moving ring; 9062. Rotating ring; 907. Push rod; 908. Wedge plate; 909. Top rod; 910. Compression leaf spring; 911. Connecting block; 912. Electric adjusting rod; 913. Laser positioner; 914. Groove; 915. Return spring; 916. Mounting hole; 917. Moving groove; 918. Moving block; 919. Conical sleeve. Detailed Implementation

[0045] 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 embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0046] Please see Figures 1 to 10This invention provides a technical solution: a cage grooving device for manufacturing robot bearings, comprising: a device support 1, an adjuster 2 for clamping the cage mounted on the left side of the device support 1, and a telescopic grooving bracket 3 movably mounted on the right side of the device support 1, with a hydraulic telescopic rod 4 fixedly connected to the upper part of the grooving bracket 3. It should be noted that the movable end of the hydraulic telescopic rod 4 is fixedly installed to the top of the tool sleeve 5 by bolts, facilitating the disassembly and replacement of the tool sleeve 5; the adjuster 2 is used to clamp and fix the left end of the cage, and consists of an inner support clamp and an outer circular clamp, which are offset circumferentially to ensure clamping stability and reduce the risk of deformation. The clamping method and use of the adjuster 2 are existing technologies and will not be described in detail here.

[0047] It also includes a cutter sleeve 5 fixedly installed at the bottom of the hydraulic telescopic rod 4, a grooving cutter 6 slidably installed inside the cutter sleeve 5, and a discharge mechanism 7 movably installed between the grooving cutter 6 and the cutter sleeve 5 to assist in the discharge of grooving waste.

[0048] A positioning bracket 8 is fixedly installed at the movable end of the slotter bracket 3, and a limiting mechanism 9 for auxiliary retainer positioning is movably installed between the positioning bracket 8 and the discharge mechanism 7.

[0049] In this embodiment, as Figures 1 to 10 As shown, the material discharge mechanism 7 includes: a pressure sleeve 701 that can move vertically along the bottom of the blade sleeve 5, and a grooving blade 6 that is movably inserted in the middle of the pressure sleeve 701;

[0050] A piston rod 702 is fixedly connected to the top surface of the inner side of the tool sleeve 5, and the lower part of the piston rod 702 is slidably disposed inside the grooving tool 6 for gas compression.

[0051] A rubber gasket 703 is fixedly installed at the bottom of the grooving cutter 6 and seals against the surface of the retainer. An exhaust hole 704, corresponding to the position of the piston rod 702, is located in the center of the rubber gasket 703. It should be noted that a recessed groove is formed at the center of the bottom of the grooving cutter 6, and the rubber gasket 703 is installed inside the groove. The bottoms of the grooving cutter 6 and the rubber gasket 703 are designed as arc surfaces that mate with the surface of the retainer, improving the sealing effect when the rubber gasket 703 is in contact with the retainer. The end face of the grooving cutter 6 is coated with a diamond-like carbon anti-stick coating, and radial micro-protrusions are provided around the central hole of the rubber gasket 703 to reduce the contact area of ​​waste material, ensuring reliable material removal with compressed gas. A rigid metal liner is embedded in the exhaust hole 704 to prevent the rubber from expanding and blocking the hole under pressure. A spiral guide groove is provided at the bottom of the piston rod 702, forming a vortex to flush the hole wall during exhaust, achieving self-cleaning.

[0052] In this embodiment, as Figures 1 to 10 As shown, four guide blocks 705 are fixedly connected to the lower side wall of the tool holder 5. Each pair of guide blocks 705 is set as a group, and the two groups of guide blocks 705 are respectively set on both sides of the tool holder 5.

[0053] A guide rod 706 is movably inserted into the middle of the guide block 705. The bottom of the guide rod 706 is fixedly connected to the top of the pressure sleeve 701. A compression spring 707 that cooperates with the guide block 705 is movably sleeved at the lower part of the guide rod 706. It should be noted that when the hydraulic telescopic rod 4 drives the cutter sleeve 5 to move downward, under the action of the compression spring 707, the cutter sleeve 5 will first bring the pressure sleeve 701 into contact with the surface of the cage. After the limiting mechanism 9 restricts the cage to the position where it needs to be grooved, the cutter sleeve 5, which continues to move downward, will bring the grooving knife 6 to perform grooving. This grooving equipment is particularly suitable for stable grooving processing of thin-walled cages.

[0054] In this embodiment, as Figures 1 to 10 As shown, a piston groove 708 is formed in the middle of the grooving blade 6, and a piston rod 702 is slidably disposed inside the piston groove 708. A return spring 709 is fixedly connected between the bottom of the piston rod 702 and the inner bottom surface of the piston groove 708. It should be noted that a slider is fixedly connected to the outer wall of the grooving blade 6, and a groove is formed on the inner wall of the blade sleeve 5 to ensure the stability of the grooving blade 6 and the blade sleeve 5 during the sliding process. An axial buffer gap is reserved between the inner top surface of the blade sleeve 5 and the top surface of the grooving blade 6. After the grooving blade 6 contacts the retainer and stops descending, the blade sleeve 5 continues to move down until the inner top surface contacts the top surface of the grooving blade 6. After that, the two are rigidly connected, and the cutting force of the hydraulic telescopic rod 4 is transmitted through this rigid path.

[0055] The bottom of the piston groove 708 has a through hole that mates with the exhaust port 704. It should be noted that when the cutter sleeve 5 drives the grooving cutter 6 downwards via the piston rod 702, the rubber pad 703 at the bottom of the grooving cutter 6 is in contact with the surface of the retainer. At this time, the piston groove 708 is sealed. As the piston rod 702 moves downwards, the gas inside the piston groove 708 is compressed. After the piston rod 702 drives the grooving cutter 6 to complete the grooving of the retainer surface, a gap is created between the detached waste material and the rubber pad 703. The compressed gas is released from the exhaust port 704 and the through hole, driving the waste material to fall rapidly into the waste collection box 9. 04. To reduce the occurrence of material jamming, specifically, the bottom of the grooving knife 6 forms a floating buffer structure through the return spring 709. The rubber pad 703 first adheres to the complete outer wall of the retainer to achieve a seal. After the grooving knife 6 is limited by the workpiece, it stops descending. The piston rod 702 continues to feed with the knife sleeve 5 and relatively compresses the air inside the piston groove 708. The sealed cavity remains sealed throughout the cutting operation. Only when the grooving knife 6 completes the punching and the waste material breaks and separates, a gap is formed on the sealing contact surface, and the compressed gas is instantly ejected, realizing the synchronous linkage of cutting and auxiliary material discharge.

[0056] In this embodiment, as Figures 1 to 10As shown, the limiting mechanism 9 includes: slide rods 901 symmetrically fixedly connected to both sides of the positioning bracket 8, and V-shaped hinge plates 902 are slidably arranged laterally on the surfaces of the two slide rods 901 respectively. The upper parts of the two V-shaped hinge plates 902 are hinged to the side wall of the pressure sleeve 701, and a pad 903 is hinged between the lower parts of the two V-shaped hinge plates 902. It should be noted that during the downward movement of the pressure sleeve 701, the pad 903 moves upward synchronously due to the sliding cooperation between the V-shaped hinge plates 902 and the slide rods 901, thus clamping the cage at the processing position.

[0057] A waste collection box 904 is fixedly installed at the bottom of the pad 903, and the middle of the pad 903 has a cutting edge 905 that cooperates with the grooving knife 6. It should be noted that the cutting edge 905 of the pad 903 cooperates with the grooving knife 6, which moves vertically inside the knife sleeve 5, to achieve grooving.

[0058] A limiting adjustment ring 906 is slidably set on the surface of the slide rod 901. A push rod 907 is symmetrically slidably set in the middle of the positioning bracket 8. The two push rods 907 are respectively movably inserted into the interior of the two slide rods 901. The opposite ends of the two push rods 907 are respectively fixedly connected to the inner walls of the two limiting adjustment rings 906.

[0059] A wedge plate 908 is vertically slidably mounted on the upper part of the grooving device bracket 3 to drive the push rod 907 to move. A top rod 909 is fixedly installed on the side wall of the blade sleeve 5 to drive the wedge plate 908 to move downward. It should be noted that when the blade sleeve 5 moves downward, taking the grooving knife 6 downward for cutting, the top rod 909 drives the wedge plate 908 to move downward, so that the wedge plate 908 squeezes the two push rods 907 to move in opposite directions. The push rod 907 slides inside the slide rod 901 and presses against the side wall of the V-shaped hinge plate 902 with the limiting adjustment ring 906, locking the position of the pressure sleeve 701, the pad sleeve 903 and the V-shaped hinge plate 902 behind the bearing retainer, ensuring the stability of the clamping of the pressure sleeve 701 and the pad sleeve 903 during the cutting process.

[0060] In this embodiment, as Figures 1 to 10 As shown, the waste collection box 904 has an internal discharge groove that mates with the cutting edge 905, and a discharge plate can be detachably installed at the bottom of the waste collection box 904. It should be noted that the waste collection box 904 can be fixedly connected to the bottom of the gasket 903 with bolts for easy replacement.

[0061] In this embodiment, as Figures 1 to 10As shown, the V-shaped hinge plate 902 consists of a double-headed hinge block and two hinge strips. The two hinge strips are respectively hinged to both ends of the double-headed hinge block and arranged in a V-shape. The middle part of the double-headed hinge block is slidably disposed on the surface of the corresponding slide rod 901. It should be noted that the two sets of V-shaped hinge plates 902 form a diamond-shaped linkage mechanism on both sides of the positioning bracket 8. The V-shaped hinge plates 902 are restricted to sliding by the double-headed hinge block and the positioning bracket 8, so that the two ends of the V-shaped hinge plates 902 can move synchronously. This ensures that the pad 903 and the pressure sleeve 701 can move synchronously to clamp and position the cage. The surfaces of the pad 903 and the pressure sleeve 701 are both designed as arc-shaped surfaces that mate with the surface of the cage.

[0062] A compression spring 910 is movably sleeved on the surface of the slide rod 901, used to drive the V-shaped hinge plate 902 to return to its original position. It should be noted that the slide rod 901 is designed as a T-shaped rod to ensure the stability of the compression spring 910 during installation.

[0063] Connecting blocks 911 are fixedly connected to both ends of the V-shaped hinge plate 902. The connecting blocks 911 are fixedly installed to the side walls of the corresponding pressure sleeve 701 and pad sleeve 903 by screws. It should be noted that the installation of the connecting blocks and screws facilitates the replacement of different specifications of the tool sleeve 5, grooving tool 6 and pad sleeve 903.

[0064] In this embodiment, as Figures 1 to 10 As shown, a groove 914 is provided in the middle of the left side of the positioning bracket 8. Two push rods 907 are respectively movably inserted into both sides of the groove 914. The opposite ends of the two push rods 907 are spherical surfaces that mate with the bottom of the wedge plate 908. A restoring spring 915 is movably sleeved on the surface of the push rods 907 and fits against the inner wall of the groove 914. It should be noted that the bottom of the wedge plate 908 has an arc angle that mates with the end of the push rod 907, and the length of the wedge plate 908 is set to 1.2 times the downward movement distance of the grooving knife 6. This ensures that during the cutting process of the knife sleeve 5 carrying the grooving knife 6 downward, the wedge plate 908 can always be stably restricted between the two push rods 907, preventing the V-shaped hinge plate 902 from resetting and moving.

[0065] A mounting hole 916 is provided at the axial position of the slide rod 901, and a moving groove 917 is symmetrically provided on the inner wall of the mounting hole 916. The push rod 907 is movably inserted inside the mounting hole 916. A moving block 918 is slidably arranged inside the moving groove 917. The two ends of the moving block 918 are respectively fixedly connected to the surfaces of the adjacent push rod 907 and the limiting adjustment ring 906. It should be noted that: after the end of the push rod 907 is pressed, it drives the limiting adjustment ring 906 to stick to the side wall of the V-shaped hinge plate 902 through the moving block 918. During the punching process, the reverse cutting force on the pad 903 is converted into the axial sliding force of the double-headed hinge block through the V-shaped hinge plate 902, which is offset by the rigid blocking of the limiting adjustment ring 906. Finally, it is transmitted to the tool sleeve 5 and the hydraulic telescopic rod 4 through the push rod 907, wedge plate 908, and top rod 909, forming a complete rigid force closed path without elastic yielding throughout the process.

[0066] The limiting adjustment ring 906 consists of a moving ring 9061 and a rotating ring 9062. The moving ring 9061 is sleeved on the surface of the slide rod 901. The inner ring of the moving ring 9061 is connected to the moving block 918. The rotating ring 9062 is threadedly connected to the outer ring of the moving ring 9061. The end of the rotating ring 9062 overlaps with the side wall of the adjacent V-shaped hinge plate 902, which is used to limit the sliding displacement of the double-headed hinge block of the V-shaped hinge plate (902) towards the center. It should be noted that: the outer surface of the slide bar 901 is provided with scale lines along the axial direction to calibrate the effective axial limit length of the limit adjustment ring 906; for cage workpieces with different wall thicknesses, the overall axial dimension of the limit adjustment ring 906 can be adjusted by turning the rotating ring to ensure that after the pressure sleeve 701 and the pad sleeve 903 complete the bidirectional clamping and positioning of the area to be grouted, when the grooving cutter 6 enters the punching and cutting stage, the limit adjustment ring 906 just abuts against the sliding end face of the V-shaped hinge plate 902 and completes rigid locking, realizing precise timing matching between the locking action and the cutting action, fundamentally avoiding the pad sleeve 903 from being pushed back by the punching reaction force during the cutting process. The specific adjustment value here is existing technology and will not be elaborated further; and the rotating ring 9062 surface is provided with a set screw locking assembly for self-locking after the length of the limit adjustment ring is adjusted. This self-locking method adopts existing technology.

[0067] The push rod 909 is designed as an L-shaped conical rod. A tapered sleeve 919, which mates with the bottom conical head of the push rod 909, is installed on the top of the wedge plate 908. Guide rods are symmetrically fixedly installed on the upper part of the slotter bracket 3. A guide block is slidably mounted on the upper part of the guide rod, and the side wall of the guide block is fixedly connected to the side wall of the wedge plate 908. A return spring for driving the wedge plate 908 to reset is sleeved on the lower part of the guide rod. It should be noted that the tapered sleeve 919 mates with the bottom conical head of the push rod 909 to ensure stability during the downward movement of the wedge plate 908 driven by the push rod 909. After the cutter sleeve 5 moves upward and resets with the push rod 909, the return spring drives the wedge plate 908 to reset, releasing the pressure on the push rod 907.

[0068] In this embodiment, as Figures 1 to 10 As shown, the slotting bracket 3 consists of an upper bracket, an electric adjusting rod 912, and a lower bracket. The electric adjusting rod 912 is fixedly installed between the upper bracket and the lower bracket and is used to adjust the distance between the upper bracket and the lower bracket. It should be noted that the guide rod for guiding the wedge plate 908 is installed on the side wall of the upper bracket.

[0069] The positioning bracket 8 is fixedly installed on the side wall of the upper bracket. A laser positioner 913 is installed in the middle of the groove 914. The signal output terminal of the laser positioner 913 and the control terminal of the electric adjusting rod 912 are both electrically connected to the PLC. It should be noted that: before processing, the laser positioner 913 collects the outer circle data of the cage. The PLC controls the electric adjusting rod 912 to adjust the height of the positioning bracket 8 so that the center hinge point of the V-shaped hinge plate 902 is in a preset horizontal position, ensuring that the pressure sleeve 701 and the pad sleeve 903 are aligned and clamped in both directions. The electrical linkage control structure between the laser positioner 913, the electric adjusting rod 912 and the PLC is a mature existing technology and will not be elaborated or described in detail.

[0070] An electric telescopic rod for driving the grooving bracket 3 to move is fixedly connected to the right side of the equipment support 1.

[0071] In this embodiment, as Figures 1 to 10 As shown, a method of using a cage slotting device for manufacturing robot bearings includes the following steps:

[0072] S1. Before operating the equipment, according to the wall thickness specifications of the cage to be processed, turn the rotating ring 9062 of the limit adjustment ring 906 and adjust the overall axial dimension of the limit adjustment ring 906 in conjunction with the scale lines on the surface of the slide rod 901 to ensure that the timing of the locking action and the cutting action are accurately matched. After the adjustment is completed, the self-locking is completed by tightening the set screw. During operation, the cage is put on the outside of the adjuster 2 by a robot or manually. The left end of the cage is clamped and fixed by the adjuster 2. The outer circle contour data of the cage is collected in real time by the laser positioner 913 and the center position is corrected. Under the logic control of the PLC control system, the upper support and upper structure of the slotter bracket 3 are driven by the electric adjustment rod 912 to move in linkage, so that the central axis of the positioning bracket 8 is precisely coincided with the center of the outer circle of the cage, ensuring that the pressure sleeve 701 and the pad sleeve 903 are symmetrically arranged on both sides of the outer contour of the cage, and the alignment calibration before processing is completed.

[0073] S2. After alignment, the electric telescopic rod on the right side of the equipment support 1 drives the grooving bracket 3 to move laterally to the left, so that the cutter sleeve 5 and the pressure sleeve 701 fit and engage on the outer surface of the cage. Then, the hydraulic telescopic rod 4 is activated to extend downward, and the hydraulic telescopic rod 4 synchronously drives the cutter sleeve 5 to move downward. The compression springs 707 mounted on both sides of the cutter sleeve 5 work together with the guide rod 706 to drive the pressure sleeve 701 to gradually fit against the outer wall of the cage. Under the limiting constraint of the positioning bracket 8, the V-shaped hinge plates 902 on both sides of the pressure sleeve 701, which are hinged by the connecting block 911, slide along the surface of the corresponding slide rod 901 and produce angular deformation. Since the two V-shaped hinge plates 902 are set in a diamond structure on both sides of the positioning bracket 8, they can synchronously drive the pad 903 hinged at the lower end of the V-shaped hinge plate 902 to move accordingly, so that the pad 903 and the pressure sleeve 701 move synchronously towards each other, and implement bidirectional fitting and positioning of the area to be slotted in the retainer. At the same time, the top rod 909 fixed to the side wall of the blade sleeve 5 moves down synchronously with the blade sleeve 5, and contacts and pushes the wedge plate 908 vertically downward along the guide rod through the cone sleeve 919. The wedge plate 908 gradually squeezes the push rods 907 on both sides to slide back and forth along the mounting holes 916 in the slide rod 901, preparing for subsequent rigid locking.

[0074] S3. After the pressure sleeve 701 and the pad sleeve 903 are firmly clamped together, the hydraulic telescopic rod 4 continues to drive the blade sleeve 5 downward. The compression spring 707 is gradually compressed and stores energy under axial pressure. At this time, the wedge plate 908 continues to move downward under the continuous push of the push rod 909, fully opening the push rods 907 on both sides. The push rod 907 drives the limit adjustment ring 906 to move axially along the slide rod 901 via the moving block 918 in the moving groove 917, so that the end face of the rotating ring 9062 just abuts against the sliding end face of the V-shaped hinge plate 902, completing the rigid locking of the clamping mechanism, fundamentally offsetting the punching reaction force, and preventing the pad sleeve 903 from retracting during the cutting process.

[0075] S4. The cutter sleeve 5, relying on the elastic cooperation of the piston rod 702 and the return spring 709, drives the grooving cutter 6 to move independently downward relative to the pressure sleeve 701. The bottom end of the grooving cutter 6 and the rubber pad 703 are tightly attached to the surface of the cage. With the sealing effect of the rubber pad 703, the piston groove 708 and the exhaust hole 704 form a sealed cavity structure. The piston rod 702 continues to descend and compress the internal space of the piston groove 708, realizing the compression and energy storage of the cavity gas. The cutter sleeve 5 drives the grooving cutter 6 to continuously feed, and the cutting edge 9 in the middle of the pad sleeve 903... 05. The machine precisely completes the mechanical cutting and grooving. The waste generated during cutting is guided by the blade 905 and falls vertically into the waste collection box 904 for temporary storage. At the moment the cutting of the cage groove is completed, the seal between the rubber pad 703 and the waste contact surface is released. The compressed gas inside the piston groove 708 is quickly depressurized and ejected through the exhaust port 704. The airflow propulsion helps the cutting waste to quickly leave the processing area and fall directionally into the waste collection box 904, realizing active material discharge and reducing the occurrence of material jamming.

[0076] S5. After the machining process is completed, the hydraulic telescopic rod 4 drives the tool sleeve 5 to move upward and reset. The push rod 909 moves upward synchronously with the tool sleeve 5. The wedge plate 908 moves upward and resets along the guide rod under the drive of the return spring, releasing the radial compression on the push rod 907. The push rod 907 retracts towards each other along the mounting hole 916 under the action of the return spring 915, driving the limit adjustment ring 906 to disengage from the sliding end face of the V-shaped hinge plate 902 and releasing the rigid lock. At the same time, the reset spring 709 and the compression spring 707 reset together, and the grooving tool 6 and the tool sleeve 5 structure return to the initial assembly position. The compression leaf spring 910 on the outside of the slide rod 901 releases elastic potential energy, driving the V-shaped hinge plate 902 to slide and reset in the opposite direction, driving the pad sleeve 903 to return to the initial position synchronously. Finally, the regulator 2 drives the clamped and fixed cage to rotate and index at a fixed angle, switching to the next processing position. The above action process is repeated cyclically to realize the continuous automated processing of multiple sets of slots on the cage.

[0077] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A cage slotting device for manufacturing robot bearings, comprising: Equipment support (1), an adjuster (2) for clamping and holding the cage is installed on the left side of the equipment support (1), and a telescopic slotter bracket (3) is movably installed on the right side of the equipment support (1), and a hydraulic telescopic rod (4) is fixedly connected to the upper part of the slotter bracket (3). The feature is that it also includes a blade sleeve (5) fixedly installed at the bottom of the hydraulic telescopic rod (4), a grooving blade (6) is slidably installed inside the blade sleeve (5), and a discharge mechanism (7) is movably installed between the grooving blade (6) and the blade sleeve (5) to assist in the discharge of grooving waste. A positioning bracket (8) is fixedly installed at the movable end of the slotter bracket (3), and a limiting mechanism (9) for auxiliary cage positioning is movably installed between the positioning bracket (8) and the discharge mechanism (7).

2. The cage slotting device for manufacturing robot bearings according to claim 1, characterized in that: The material discharge mechanism (7) includes: a pressure sleeve (701) that can move vertically along the bottom of the blade sleeve (5), and the grooving blade (6) is movably inserted in the middle of the pressure sleeve (701); A piston rod (702) is fixedly connected to the top surface of the inner side of the tool sleeve (5), and the lower part of the piston rod (702) is slidably disposed inside the grooving tool (6) for gas compression; A rubber pad (703) is fixedly installed at the bottom of the grooving cutter (6) and seals against the surface of the retainer. An exhaust hole (704) corresponding to the position of the piston rod (702) is provided in the middle of the rubber pad (703).

3. A cage slotting device for manufacturing robot bearings according to claim 2, characterized in that: Four guide blocks (705) are fixedly connected to the lower side wall of the blade sheath (5). Each pair of guide blocks (705) is set as a group, and the two groups of guide blocks (705) are respectively set on both sides of the blade sheath (5). A guide rod (706) is movably inserted through the middle of the guide block (705). The bottom of the guide rod (706) is fixedly connected to the top of the pressure sleeve (701). A compression spring (707) that cooperates with the guide block (705) is movably sleeved on the lower part of the guide rod (706).

4. A cage slotting device for manufacturing robot bearings according to claim 3, characterized in that: The grooving cutter (6) has a piston groove (708) in the middle, and the piston rod (702) is slidably disposed inside the piston groove (708). A return spring (709) is fixedly connected between the bottom of the piston rod (702) and the inner bottom surface of the piston groove (708). The bottom of the piston groove (708) is provided with a through hole that matches the exhaust port (704).

5. A cage slotting device for manufacturing robot bearings according to claim 4, characterized in that: The limiting mechanism (9) includes: slide rods (901) symmetrically fixedly connected to both sides of the positioning bracket (8), and V-shaped hinge plates (902) are slidably provided on the surfaces of the two slide rods (901), the upper parts of the two V-shaped hinge plates (902) are hinged to the side wall of the pressure sleeve (701), and a pad sleeve (903) is hinged between the lower parts of the two V-shaped hinge plates (902). A waste collection box (904) is fixedly installed at the bottom of the pad (903), and a cutting edge (905) that cooperates with the grooving knife (6) is provided in the middle of the pad (903). A limiting adjustment ring (906) is slidably disposed on the surface of the slide rod (901). A push rod (907) is symmetrically slidably disposed in the middle of the positioning bracket (8). The two push rods (907) are respectively movably inserted into the interior of the two slide rods (901). The opposite ends of the two push rods (907) are respectively fixedly connected to the inner walls of the two limiting adjustment rings (906). A wedge plate (908) is vertically slidably mounted on the upper part of the slotter bracket (3) for driving the push rod (907) to move. A top rod (909) for driving the wedge plate (908) to move downward is fixedly installed on the side wall of the tool sleeve (5).

6. A cage slotting device for manufacturing robot bearings according to claim 5, characterized in that: The waste collection box (904) has a discharge groove inside that matches the cutting edge (905), and a discharge plate is detachably installed at the bottom of the waste collection box (904).

7. A cage slotting device for manufacturing robot bearings according to claim 6, characterized in that: The V-shaped hinge plate (902) consists of a double-headed hinge block and two hinge bars. The two hinge bars are respectively hinged to both ends of the double-headed hinge block and arranged in a V-shape. The middle part of the double-headed hinge block is slidably disposed on the surface corresponding to the slide rod (901). A compression leaf spring (910) is movably sleeved on the surface of the slide bar (901) for driving the V-shaped hinge plate (902) to move back to its original position; The V-shaped hinge plate (902) has connecting blocks (911) fixedly connected to both ends. The connecting blocks (911) are fixedly installed to the side walls of the corresponding pressure sleeve (701) and pad sleeve (903) by screws.

8. A cage slotting device for manufacturing robot bearings according to claim 7, characterized in that: The positioning bracket (8) has a groove (914) in the middle of its left side. Two push rods (907) are respectively inserted into the two sides of the groove (914). The opposite end of the two push rods (907) is a spherical surface that matches the bottom of the wedge plate (908). The surface of the push rod (907) is movably sleeved with a restoring spring (915) that fits against the inner wall of the groove (914). The slide rod (901) has a mounting hole (916) at its axial position, and the inner wall of the mounting hole (916) has symmetrical moving grooves (917). The push rod (907) is movably inserted into the mounting hole (916). The moving block (918) is slidably arranged inside the moving groove (917). The two ends of the moving block (918) are respectively fixedly connected to the surfaces of the adjacent push rod (907) and the limiting adjustment ring (906). The limiting adjustment ring (906) consists of a moving ring (9061) and a rotating ring (9062). The moving ring (9061) is sleeved on the surface of the slide rod (901). The inner ring of the moving ring (9061) is connected to the moving block (918). The rotating ring (9062) is threaded to the outer ring of the moving ring (9061), and the end of the rotating ring (9062) overlaps with the side wall of the adjacent V-shaped hinge plate (902) to limit the movement of the V-shaped hinge plate (902). The top rod (909) is an L-shaped conical rod. The top of the wedge plate (908) is equipped with a conical sleeve (919) that matches the bottom conical head of the top rod (909). The upper part of the slotter bracket (3) is symmetrically fixedly equipped with guide rods. The upper part of the guide rod is slidably equipped with a guide block. The side wall of the guide block is fixedly connected to the side wall of the wedge plate (908). The lower part of the guide rod is fitted with a return spring for driving the wedge plate (908) to reset.

9. A cage slotting device for manufacturing robot bearings according to claim 8, characterized in that: The slotting bracket (3) consists of an upper bracket, an electric adjusting rod (912) and a lower bracket. The electric adjusting rod (912) is fixedly installed between the upper bracket and the lower bracket and is used to adjust the distance between the upper bracket and the lower bracket. The positioning bracket (8) is fixedly installed on the side wall of the upper bracket. A laser positioner (913) is installed in the middle of the groove (914). The signal output end of the laser positioner (913) and the control end of the electric adjusting rod (912) are both electrically connected to the PLC. An electric telescopic rod for driving the grooving bracket (3) to move is fixedly connected to the right side of the equipment support (1).

10. A method of using a cage grooving device for manufacturing robot bearings, characterized in that, Using a cage slotting apparatus for manufacturing robot bearings as described in any one of claims 1-9 includes the following steps: S1. Before operation, according to the wall thickness specifications of the cage to be processed, turn the rotating ring (9062) of the limit adjustment ring (906) and adjust the axial dimension with the scale line of the slide rod (901) to ensure that the locking and cutting sequence are matched. After adjustment, the cage is self-locked by the set screw. During operation, the cage is clamped to the adjuster (2) to complete the left end fixation. The outer circle contour data is collected by the laser positioner (913) to correct the center. After PLC control, the electric adjustment rod (912) drives the bracket on the slotter bracket (3) to move, so that the center axis of the positioning bracket (8) coincides with the outer circle center of the cage. The pressure sleeve (701) and the pad sleeve (903) are symmetrically arranged on both sides of the cage to complete the alignment calibration. S2. After alignment, the electric telescopic rod on the right side of the equipment support (1) drives the slotter bracket (3) to move laterally to the left, so that the cutter sleeve (5) and the pressure sleeve (701) are engaged on the outer circle of the retainer. The hydraulic telescopic rod (4) extends to drive the cutter sleeve (5) to move downward. The compression spring (707) and the guide rod (706) drive the pressure sleeve (701) to adhere to the outer wall of the retainer. The V-shaped hinge plate (902) slides and deforms along the slide rod (901), synchronously driving the pad sleeve (903) to move towards each other, positioning the area to be slotted in both directions. At the same time, the top rod (909) moves down with the cutter sleeve (5), pushes the wedge plate (908) down through the cone sleeve (919), and squeezes the push rods (907) on both sides to slide back and forth along the mounting hole (916), and moves towards the corresponding V-shaped hinge plate (902) with the limit adjustment ring (906) to complete the locking preparation. S3. After the pressure sleeve (701) and the pad sleeve (903) are firmly clamped, the hydraulic telescopic rod (4) continues to drive the blade sleeve (5) downward, the compression spring (707) compresses and stores energy, the wedge plate (908) continues to move downward and fully opens the push rod (907), the push rod (907) drives the limit adjustment ring (906) to move axially through the moving block (918), the end face of the rotating ring (9062) abuts against the sliding end face of the V-shaped hinge plate (902), and completes the rigid locking of the clamping mechanism, offsets the punching reaction force, and prevents the pad sleeve (903) from moving back during cutting; S4. The blade sleeve (5) cooperates with the piston rod (702) and the return spring (709) to drive the grooving blade (6) to move downward relative to the pressure sleeve (701). The rubber pad (703) adheres to the surface of the retainer to form a sealed cavity. The piston rod (702) moves downward to compress the gas in the cavity to store energy. The grooving blade (6) continues to feed and cooperates with the cutting edge (905) of the pad sleeve (903) to complete the cutting and grooving. The waste material falls into the waste collection box (904). At the moment the cutting is completed, the compressed gas is ejected through the exhaust hole (704) to help the waste material fall into the waste collection box (904) in a directional manner, thus realizing active material discharge. S5. After processing, the hydraulic telescopic rod (4) drives the tool sleeve (5) to move upward and reset, the push rod (909) moves upward synchronously, the wedge plate (908) resets under the action of the return spring, releases the pressure on the push rod (907), the push rod (907) retracts through the recovery spring (915), drives the limit adjustment ring (906) to disengage from the V-shaped hinge plate (902), releases the rigid lock, the reset spring (709), the compression spring (707) and the compression leaf spring (910) reset together, each component returns to the initial position, the regulator (2) drives the cage to set the angle index, switches the work position for cyclic operation, and realizes continuous automated processing of multiple slots.

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