Automatic roller loading machine for crossed roller bearing with inner ring ball filling block

Abstract

The invention belongs to the technical field of bearing manufacturing automation, and particularly relates to an automatic roller mounting machine for a crisscross roller bearing with an inner ring ball filling block, and provides the following scheme that the automatic roller mounting machine specifically comprises a mounting table, a mounting groove is formed in the top of the mounting table, and a telescopic oil cylinder is mounted at the bottom of the mounting table; and a bearing rotating tray of an annular structure is rotationally mounted in the mounting groove, a driving motor for driving the bearing rotating tray to rotate is mounted on the side face of the mounting table, an inner ring positioning mechanism is fixedly mounted in the middle of the mounting groove, and a lifting table frame is fixedly mounted at the top of the telescopic oil cylinder. According to the invention, manual roller mounting is replaced by a machine, so that the assembly efficiency is greatly improved; according to the cross roller bearing production line, cross roller bearing finished products with certain quality can be stably produced, control over the production rhythm and the product quality is improved for enterprises, the model changing speed can be high according to different models of cross roller bearings, operation is convenient, and the cross roller bearing production line has the advantage of being convenient to change models.

Description

Technical Field

[0001] The present invention relates to the technical field of bearing manufacturing automation, and particularly relates to an automatic roller loading machine for a cross roller bearing with an inner ring ball filling block. Background Art

[0002] Cross roller bearings are widely used in fields such as industrial robots, medical devices, measuring instruments, IC manufacturing equipment, heavy transportation machinery, and construction engineering machinery. With the rapid development of the robot industry, the demand for production capacity is also increasing, and the production efficiency and quality of cross roller bearings are particularly important.

[0003] The rollers of cross roller bearings need to be fully loaded and there are a large number of rollers. Currently, most of the assembly processes are to manually install the rollers one by one, and the assembly efficiency is slow; the assembly clearance of bearings is mostly negative clearance. During the manual assembly process, it is necessary to continuously adjust the position of the rollers with metal tools, and there is a high probability of damage to the rollers and raceways due to incorrect assembly techniques; the proficiency of the operators has a great impact on the quality of the finished products, and the production process is relatively dependent on skilled workers to complete the production goals.

[0004] In view of this, the present invention provides an automatic roller loading machine for a cross roller bearing with an inner ring ball filling block to solve the technical problems existing in the above-mentioned prior art. Summary of the Invention

[0005] Based on the technical problems existing in the background art, the present invention proposes an automatic roller loading machine for a cross roller bearing with an inner ring ball filling block.

[0006] The automatic roller loading machine for a cross roller bearing with an inner ring ball filling block proposed by the present invention includes an installation table. An installation groove is provided at the top position of the installation table, and a telescopic oil cylinder is installed at the bottom position of the installation table. An annular bearing rotation tray is rotatably installed inside the installation groove, and a drive motor for driving the bearing rotation tray to rotate is installed on the side of the installation table. An inner ring positioning mechanism is fixedly installed in the middle of the installation groove. A lifting table frame is fixedly installed at the top of the telescopic oil cylinder, and a roller pressing mechanism for loading rollers and cages is installed at the front end position of the lifting table frame. A feeding mechanism for conveying rollers and cages is installed on the top of the roller pressing mechanism, and a turning mechanism for changing the falling direction of the rollers is rotatably installed in the middle of the feeding mechanism. A horizontally arranged roller feeding air cylinder is fixedly installed on the side of the feeding mechanism, and a cage conveying mechanism is provided at the top of the feeding mechanism. A 45° inclined pressing air cylinder is fixedly installed at the end of the roller pressing mechanism.

[0007] Preferably, in the present invention, the bearing rotating tray includes an annular housing, the top of the annular housing is fixedly installed with an outer ring positioning ring, the inner wall of the outer ring positioning ring is provided with a plurality of elastic pressing members, and the bearing outer ring is inserted into the inside of the outer ring positioning ring.

[0008] Preferably, in the present invention, the inner ring positioning mechanism includes a bakelite centering core located in the middle, and the side of the bakelite centering core is provided with a guiding groove adapted to the roller pressing mechanism. Fixed fasteners connected by springs are provided at both ends of the bakelite centering core. The bearing inner ring is sleeved outside the bakelite centering core. The top of the bearing inner ring is provided with a ball loading port in a fan-shaped structure, and a ball filling block is installed at the upper end of the ball loading port through bolts.

[0009] Preferably, in the present invention, the feeding mechanism includes a bushing, and the inside of the bushing is provided with a roller feeding channel in an inverted T-shaped structure. Inductive switches for controlling the feeding air cylinder are provided in both the vertical section and the horizontal section of the roller feeding channel. A roller conveying pipe is inserted into the top of the roller feeding channel. The bottom of the bushing is provided with a discharge square hole connecting the steering mechanism and the roller pressing mechanism. A feeding slider connected to the front end of the feeding air cylinder is slidably installed in the horizontal section of the roller feeding channel.

[0010] Preferably, in the present invention, the steering mechanism includes a rotating table rotatably connected to the bushing and a rotating table driving motor installed outside the bushing. A horizontal square hole is provided on the side of the rotating table, which is aligned with the roller feeding channel. A vertical round hole is provided at the bottom of the rotating table, which is aligned with the discharge square hole. The square hole and the round hole communicate with each other at 90°.

[0011] Preferably, in the present invention, the top of the bushing is provided with a chute adapted to the cage conveying mechanism, and a cage slideway connecting the cage conveying mechanism and the roller pressing mechanism is provided at the bottom of the chute.

[0012] Preferably, in the present invention, the cage conveying mechanism includes an adjusting air cylinder installed on the bushing and a movable seat slidably installed inside the chute. The output end of the adjusting air cylinder is connected to the end of the movable seat. Two cage discharging holes are provided in the middle of the movable seat, and cage conveying pipes are inserted into the tops of the two cage discharging holes.

[0013] Preferably, in the present invention, the roller pressing mechanism includes a pressing housing in an L-shaped structure. The bottom of the pressing housing is provided with a pressing portion corresponding to the ball loading port. A roller pressing groove, a cage pressing groove and a roller pressing component are sequentially arranged inside the pressing housing. The outlets of the roller pressing groove, the cage pressing groove and the roller pressing component are all maintained at the pressing portion.

[0014] Preferably, in the present invention, the roller pressing groove has an L-shaped structure, and a roller pressing block connected to the pressing cylinder is slidably installed at the corner of the roller pressing groove, and an induction switch for controlling the pressing cylinder is provided at the corner of the roller pressing groove.

[0015] Preferably, in the present invention, the roller pressing component includes a pressing groove provided on the side of the pressing housing, and a U-shaped movable pressing block is slidably installed inside the pressing groove. An insertion end is provided at the bottom end of the movable pressing block. The roller pressing component further includes a pressing cylinder for driving the movement of the movable pressing block, and the pressing cylinder is installed on the pressing housing.

[0016] Compared with the prior art, the present invention provides an automatic roller loading machine for a cross roller bearing with an inner ring filling ball block, and has the following beneficial effects: In the present invention, different types of toolings can be disassembled and installed integrally. According to different models of cross roller bearings, the tooling change speed is fast, the operation is convenient, and it has the advantage of convenient tooling change. It is beneficial for the steering mechanism to cooperate with the roller pressing groove to change the vertically arranged rollers into vertically and horizontally alternately crossed arrangements. Through the reciprocating movement of the movable seat inside the sliding groove, the cage blanking hole and the cage slideway are alternately overlapped, and the cage and the cross rollers are alternately conveyed into the bearing raceway. After pressing in a roller and a cage, the bearing rotating tray will drive the bearing outer ring to rotate clockwise by a certain angle first. The cage touches the roller pressing component and thus converges towards the rollers, so that a negative clearance is formed between the rollers and the cage. Then the bearing rotating tray drives the bearing outer ring to rotate counterclockwise by a certain angle, and the cage and the rollers pass through the ball filling port to make way for the next pressed-in roller. The number of pressed-in rollers is counted, a certain number of rollers are arranged in a crossed manner one by one and loaded into the raceway, and finally the filling ball block is installed and adjusted, and the roller loading action is completed. Furthermore, the machine replaces manual roller installation, greatly improving the assembly efficiency; it can stably produce cross roller bearing products of a certain quality, and improve the enterprise's control over the production rhythm and product quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a schematic structural diagram of an automatic roller loading machine for a cross roller bearing with an inner ring filling ball block proposed by the present invention; Figure 2 is a partial structural schematic diagram of an automatic roller loading machine for a cross roller bearing with an inner ring filling ball block proposed by the present invention; Figure 3 is a schematic structural diagram of the pressing part of an automatic roller loading machine for a cross roller bearing with an inner ring filling ball block proposed by the present invention; Figure 4 is a schematic structural diagram of the roller pressing groove of an automatic roller loading machine for a cross roller bearing with an inner ring filling ball block proposed by the present invention; Figure 5Schematic diagram of the cage pressing groove structure of an automatic roller loading machine for a cross-roller bearing with an inner ring filled with ball blocks according to the present invention; Figure 6 Schematic diagram of the roller pressing assembly structure of an automatic roller loading machine for a cross-roller bearing with an inner ring filled with ball blocks according to the present invention; Figure 7 Schematic diagram of the feeding mechanism structure of an automatic roller loading machine for a cross-roller bearing with an inner ring filled with ball blocks according to the present invention; Figure 8 Schematic diagram of the cage conveying mechanism structure of an automatic roller loading machine for a cross-roller bearing with an inner ring filled with ball blocks according to the present invention; Figure 9 Schematic diagram of the inner ring positioning mechanism structure of an automatic roller loading machine for a cross-roller bearing with an inner ring filled with ball blocks according to the present invention; Figure 10 Schematic diagram of the guide groove structure of an automatic roller loading machine for a cross-roller bearing with an inner ring filled with ball blocks according to the present invention; Figure 11 Schematic diagram of the bearing rotating tray structure of an automatic roller loading machine for a cross-roller bearing with an inner ring filled with ball blocks according to the present invention; Figure 12 Schematic diagram of the bearing structure of an automatic roller loading machine for a cross-roller bearing with an inner ring filled with ball blocks according to the present invention.

[0018] In the figure: 1 mounting table, 2 mounting groove, 3 roller pressing mechanism, 31 pressing housing, 32 pressing part, 33 roller pressing groove, 34 cage pressing groove, 35 roller pressing assembly, 351 pressing cylinder, 352 pressing groove, 353 movable pressing block, 354 insertion end, 4 telescopic oil cylinder, 5 lifting table frame, 6 roller feeding cylinder, 7 feeding mechanism, 71 bushing, 72 roller feeding channel, 73 discharge square hole, 74 chute, 75 cage slideway, 8 roller conveying pipe, 9 turning mechanism, 91 rotating table, 92 square hole, 93 round hole, 10 cage conveying mechanism, 101 adjusting cylinder, 102 movable seat, 103 cage blanking hole, 104 cage conveying pipe, 11 pressing cylinder, 12 inner ring positioning mechanism, 121 bakelite centering, 122 guide groove, 123 fixing fastener, 13 driving motor, 14 bearing rotating tray, 141 annular housing, 142 outer ring positioning ring, 143 elastic extrusion part, 15 roller pressing block, 16 feeding slide block, 17 bearing outer ring, 18 bearing inner ring, 19 ball loading port, 20 ball filling block. Detailed implementation manners

[0019] Embodiments of the present invention will be described in detail below. Examples of the embodiments are shown in the accompanying drawings, where like or similar reference numerals denote like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the accompanying drawings are exemplary and are only used to explain the present invention and should not be construed as a limitation of the present invention.

[0020] Referring to Figure 1-11 , an automatic roller loading machine for a cross roller bearing with an inner ring filling ball block, comprising an installation table 1. An installation groove 2 is provided at the top position of the installation table 1. A telescopic oil cylinder 4 is installed at the bottom position of the installation table 1. An annular bearing rotating tray 14 is rotatably installed inside the installation groove 2. A driving motor 13 for driving the bearing rotating tray 14 to rotate is installed on the side of the installation table 1. An inner ring positioning mechanism 12 is fixedly installed in the middle of the installation groove 2. A lifting table frame 5 is fixedly installed at the top of the telescopic oil cylinder 4. A roller pressing mechanism 3 for loading rollers and cages is installed at the front end position of the lifting table frame 5. A feeding mechanism 7 for conveying rollers and cages is installed at the top of the roller pressing mechanism 3. A steering mechanism 9 for changing the falling direction of the rollers is rotatably installed in the middle of the feeding mechanism 7. A horizontally arranged roller feeding air cylinder 6 is fixedly installed on the side of the feeding mechanism 7. A cage conveying mechanism 10 is provided at the top of the feeding mechanism 7. A 45° inclined pressing air cylinder 11 is fixedly installed at the end of the roller pressing mechanism 3.

[0021] As a further scheme in the present invention, the bearing rotating tray 14 includes an annular housing 141. An outer ring positioning ring 142 is fixedly installed at the top of the annular housing 141. A plurality of elastic pressing members 143 are provided on the inner wall of the outer ring positioning ring 142. The bearing outer ring 17 is inserted into the inside of the outer ring positioning ring 142. In the present invention, the bearing outer ring 17 is inserted into the inside of the outer ring positioning ring 142, and is held by a plurality of elastic pressing members 143 distributed in an annular array. The thrust of the elastic pressing members 143 towards the center of the circle synchronously is beneficial to keeping the bearing outer ring 17 and the bearing inner ring 18 coaxially installed.

[0022] As a further solution in the present invention, the inner ring positioning mechanism 12 includes a bakelite centering core 121 located in the middle, and a guiding groove 122 adapted to the roller pressing mechanism 3 is provided on the side of the bakelite centering core 121. Fixed fasteners 123 connected by springs are provided at both ends of the bakelite centering core 121. The bearing inner ring 18 is sleeved outside the bakelite centering core 121. A ball loading port 19 with a fan-shaped structure is provided at the top of the bearing inner ring 18, and a ball filling block 20 is installed at the upper end of the ball loading port 19 by bolts. In the present invention, the bearing inner ring 18 is fixedly installed outside the bakelite centering core 121. The bearing outer ring 17 and the bearing inner ring 18 are engaged to form a bearing raceway with a cross-section of two 90° angle cones, and the ball loading port 19 on the bearing inner ring 18 faces the guiding groove 122. When the roller pressing mechanism 3 descends, the bottom end thereof is inserted into the guiding groove 122 to complete the positioning operation of the roller pressing mechanism 3 and the ball loading port 19.

[0023] As a further solution in the present invention, the feeding mechanism 7 includes a bushing 71, and an inverted T-shaped roller feeding channel 72 is provided inside the bushing 71. Inductive switches for controlling the feeding cylinder 6 are provided in both the vertical section and the horizontal section of the roller feeding channel 72. A roller conveying pipe 8 is inserted into the top of the roller feeding channel 72. An outlet square hole 73 connecting the steering mechanism 9 and the roller pressing mechanism 3 is provided at the bottom of the bushing 71. A feeding slider 16 connected to the front end of the feeding cylinder 6 is slidably installed in the horizontal section of the roller feeding channel 72. In the present invention, at the beginning of the cycle, the rollers fall into the roller feeding channel 72 from the roller conveying pipe 8 under the air flow transportation. The rollers trigger the inductive switches, and the feeding cylinder 6 horizontally pushes the rollers along the horizontal section of the roller feeding channel 72 into the steering mechanism 9. When two rollers are pushed in, the inductive switch in the horizontal section is triggered, and the feeding cylinder 6 will reset and stop. The second roller will push the first roller to the corner of two holes of the steering mechanism 9, and the first roller freely falls into the outlet square hole 73 in a vertical posture and then enters the roller pressing mechanism 3. When the first roller triggers the inductive switch at the entrance of the roller pressing mechanism 3, the steering mechanism 9 rotates counterclockwise by 90°. The second roller changes from a vertical posture to a horizontal posture and freely falls into the outlet square hole 73 and then enters the roller pressing mechanism 3.

[0024] As a further solution in the present invention, the steering mechanism 9 includes a rotating table 91 rotatably connected to the bushing 71, and a rotating table drive motor installed outside the bushing 71. A horizontal square hole 92 is provided on the side of the rotating table 91, and the square hole 92 is aligned with the roller feeding channel 72. A vertical round hole 93 is provided at the bottom of the rotating table 91, and the round hole 93 is aligned with the discharging square hole 73. The square hole 92 and the round hole 93 communicate with each other at a 90° angle. In the present invention, both rollers are pushed into the square hole 92, and the second roller will push the first roller to the connecting corner of the square hole 92 and the round hole 93. The first roller freely falls from the round hole 93 into the discharging square hole 73 in a vertical posture and then enters the roller pressing mechanism 3. The first roller triggers an induction switch at the entrance of the roller pressing mechanism 3, and the rotating table 91 rotates counterclockwise by 90°. The second roller changes from a vertical posture to a horizontal posture and freely falls into the discharging square hole 73, and then enters the roller pressing mechanism 3, completing the cross-feeding operation of the two rollers.

[0025] As a further solution in the present invention, a chute 74 adapted to the cage conveying mechanism 10 is provided at the top of the bushing 71, and a cage slideway 75 connecting the cage conveying mechanism 10 and the roller pressing mechanism 3 is provided at the bottom of the chute 74. In the present invention, two-direction cage retainers are loaded in the cage conveying mechanism 10. By the reciprocating movement of the cage conveying mechanism 10 inside the chute 74, the two-direction cage retainers are alternately dropped into the roller pressing mechanism 3 in sequence, and the cage retainers and the cross rollers are alternately dropped into the bearing raceway.

[0026] As a further solution in the present invention, the cage conveying mechanism 10 includes an adjusting cylinder 101 installed on the bushing 71, and a movable seat 102 slidably installed inside the chute 74. The output end of the adjusting cylinder 101 is connected to the end of the movable seat 102. Two cage discharging holes 103 are provided in the middle of the movable seat 102, and cage conveying pipes 104 are inserted at the tops of the two cage discharging holes 103. In the present invention, the cage retainers in two directions are sequentially conveyed to the movable seat 102 through the cage conveying pipes 104. By the reciprocating movement of the movable seat 102 inside the chute 74, the cage discharging holes 103 and the cage slideway 75 are alternately overlapped, and the cage retainers and the cross rollers are alternately conveyed to the bearing raceway to complete the loading operation of the rollers.

[0027] As a further solution in the present invention, the roller pressing mechanism 3 includes a pressing housing 31 with an L-shaped structure. A pressing portion 32 corresponding to the ball filling port 19 is provided at the bottom of the pressing housing 31. Inside the pressing housing 31, a roller pressing groove 33, a cage pressing groove 34, and a roller pressing component 35 are sequentially arranged. The outlets of the roller pressing groove 33, the cage pressing groove 34, and the roller pressing component 35 are all arranged at the pressing portion 32. In the present invention, during the filling operation, the roller pressing component 35 is in the extended state, the bottom end of the roller pressing component 35 is inserted into the bearing raceway, the rollers fall from the roller pressing groove 33 into the bearing raceway, and the cage of the corresponding direction falls from the cage pressing groove 34 into the bearing raceway. At this time, there is a gap between the rollers and the cage. After pressing in one roller and the cage, the bearing rotating tray 14 drives the bearing outer ring 17 to rotate clockwise by a certain angle first. The cage touches the roller pressing component 35 and thus converges towards the rollers, so that a negative clearance is formed between the rollers and the cage. Then the bearing rotating tray 14 drives the bearing outer ring 17 to rotate counterclockwise by a certain angle. The cage and the rollers pass by the ball filling port, making way for the next roller to be pressed in. The counting of the number of pressed rollers can be changed according to the requirements of the finished bearing product.

[0028] As a further solution in the present invention, the roller pressing groove 33 has an L-shaped structure, and a roller pressing block 15 connected to the pressing cylinder 11 is slidably installed at the corner of the roller pressing groove 33. An induction switch for controlling the pressing cylinder 11 is provided at the corner of the roller pressing groove 33. In the present invention, the upper end of the roller pressing groove 33 is an inlet channel for arranging the rollers falling from the roller turning mechanism. The lower end of the roller pressing groove 33 is a pressing channel. The pressing channel intersects the inlet channel at 90°. An induction switch for controlling the pressing cylinder 11 is provided at the intersection position. The end interface of the pressing channel is connected to the ball filling port to ensure that the rollers smoothly enter the bearing raceway, and the pressing cylinder 11 presses the rollers into the bearing ball filling port.

[0029] As a further solution in the present invention, the roller pressing component 35 includes a pressing groove 352 provided on the side of the pressing housing 31. A U-shaped movable pressing block 353 is slidably installed inside the pressing groove 352. An insertion end 354 is provided at the bottom end of the movable pressing block 353. The roller pressing component 35 further includes a pressing cylinder 351 for driving the movement of the movable pressing block 353. The pressing cylinder 351 is installed on the pressing housing 31. In the present invention, during the roller pressing operation, the movable pressing block 353 moves outwards, and the insertion end 354 extends into the bearing raceway to form a baffle structure to fix the bearing inner ring 18. When the rollers and the cage are filled, the bearing outer ring 17 is rotated, which is beneficial for the insertion end 354 to block the newly filled cage and rollers and circumferentially press the cage and the rollers.

[0030] In use, at the start of the cycle, the rollers fall from the roller conveying pipe 8 into the roller loading channel 72 under pneumatic conveying. The roller triggers the inductive switch, and the loading cylinder 6 horizontally pushes the roller along the horizontal section of the roller loading channel 72 into the steering mechanism 9. When two rollers are pushed in, the inductive switch on the horizontal section is triggered, and the loading cylinder 6 will reset and stop. The second roller will push the first roller to the corner of the two holes of the steering mechanism 9, and the first roller will freely fall from the round hole into the square discharge hole 73 in a vertical posture and then enter the roller pressing mechanism 3. When the first roller triggers the inductive switch at the entrance of the roller pressing mechanism 3, the steering mechanism 9 rotates counterclockwise by 90°. The second roller changes from a vertical posture to a horizontal posture and freely falls into the square discharge hole 73 and then enters the roller pressing mechanism 3. The cage conveying mechanism 10 is loaded with roller cages in two directions, and the cages in the two directions are sequentially conveyed to the movable seat 102 through the cage conveying pipe 104. Through the reciprocating movement of the movable seat 102 inside the chute 74, the cage discharge hole 103 and the cage slideway 75 are alternately aligned, and the cages and the crossed rollers are alternately conveyed into the bearing raceway. During the loading operation, the roller pressing assembly 35 is in the extended state, and the bottom end of the roller pressing assembly 35 is inserted into the bearing raceway. The rollers fall from the roller pressing groove 33 into the bearing raceway, and the roller cages in the corresponding direction fall from the cage pressing groove 34 into the bearing raceway. At this time, there is a gap between the rollers and the cages. After pressing in one roller and one cage, the bearing rotating tray 14 drives the bearing outer ring 17 to rotate clockwise by a certain angle first. The cage touches the roller pressing assembly 35 and thus converges towards the roller, causing a negative clearance to form between the roller and the cage. The bearing rotating tray 14 drives the bearing outer ring 17 to rotate counterclockwise by a certain angle again. The cage and the roller pass through the ball filling port, making way for the next roller to be pressed in. The number of pressed-in rollers is counted, and a certain number of rollers are arranged crosswise one by one and loaded into the raceway. Finally, the ball filling block 20 is installed and adjusted, and the operation of loading the rollers is completed.

[0031] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution and inventive concept of the present invention, makes equivalent substitutions or changes, and should be covered by the protection scope of the present invention.

Claims

1. An automatic roller-mounting machine for a cross roller bearing with an inner ring ball-filled block, comprising a mounting platform (1), a mounting groove (2) being arranged at the top of the mounting platform (1), and a telescopic oil cylinder (4) being installed at the bottom of the mounting platform (1), characterized in that: A bearing rotating tray (14) of an annular structure is rotatably mounted inside the mounting groove (2), and a driving motor (13) for driving the bearing rotating tray (14) to rotate is mounted on the side of the mounting platform (1). An inner ring positioning mechanism (12) is fixedly mounted in the middle of the mounting groove (2). A lifting platform (5) is fixedly mounted on the top of the telescopic cylinder (4), and a roller pressing mechanism (3) for loading rollers and retaining frames is mounted at the front end of the lifting platform (5). A feeding mechanism (7) for conveying rollers and retaining frames is mounted on the top of the roller pressing mechanism (3), and a steering mechanism (9) for changing the falling direction of the rollers is rotatably mounted in the middle of the feeding mechanism (7). A horizontally arranged roller feeding cylinder (6) is fixedly mounted on the side of the feeding mechanism (7), and a retaining frame conveying mechanism (10) is arranged on the top of the feeding mechanism (7). A 45° inclined pressing cylinder (11) is fixedly mounted at the end of the roller pressing mechanism (3).

2. The automatic roller loading machine for a cross roller bearing with inner ring ball-filled blocks according to claim 1, characterized in that: The bearing rotating tray (14) comprises an annular shell (141), an outer ring positioning ring (142) is fixedly mounted on the top of the annular shell (141), a plurality of elastic extrusion members (143) are arranged on the inner wall of the outer ring positioning ring (142), and the bearing outer ring (17) is inserted into the inner part of the outer ring positioning ring (142).

3. The automatic roller loading machine for a cross roller bearing with inner ring ball-filled blocks according to claim 2, characterized in that: The inner ring positioning mechanism (12) includes a bakelite core (121) located in the middle, and a guide groove (122) adapted to the roller pressing mechanism (3) is provided on the side of the bakelite core (121), and spring-connected fixing fasteners (123) are provided at both ends of the bakelite core (121). The outer side of the bakelite core (121) is sleeved with a bearing inner ring (18), and a fan-shaped ball loading port (19) is provided on the top of the bearing inner ring (18), and a ball filling block (20) is installed on the upper end of the ball loading port (19) by bolts.

4. The automatic roller loading machine for a cross roller bearing with inner ring ball-filled blocks according to claim 1, characterized in that: The feeding mechanism (7) comprises a bushing (71), and a roller feeding channel (72) of an inverted T-shaped structure is arranged inside the bushing (71), and induction switches for controlling the feeding cylinder (6) are arranged in the vertical section and the horizontal section of the roller feeding channel (72), a roller conveying pipe (8) is inserted at the top of the roller feeding channel (72), and a discharge square hole (73) connected to a steering mechanism (9) and a roller pressing mechanism (3) is arranged at the bottom of the bushing (71), and a feeding slider (16) connected to the front end of the feeding cylinder (6) is slidably installed in the horizontal section of the roller feeding channel (72).

5. The automatic roller loading machine for a cross roller bearing with inner ring ball-filled blocks according to claim 4, characterized in that: The steering mechanism (9) comprises a rotating table (91) rotatably connected to the bushing (71), and a rotating table driving motor installed on the outside of the bushing (71); a horizontal square hole (92) is provided on the side of the rotating table (91); the square hole (92) is aligned with the roller feeding channel (72); a vertical round hole (93) is provided on the bottom of the rotating table (91); the round hole (93) is aligned with the discharge square hole (73); and the square hole (92) and the round hole (93) are connected to each other at 90 degrees.

6. The automatic roller loading machine for a cross roller bearing with inner ring ball-filled blocks according to claim 5, characterized in that: The top of the bushing (71) is provided with a slide groove (74) adapted to the cage conveying mechanism (10), and the bottom of the slide groove (74) is provided with a cage slideway (75) connecting the cage conveying mechanism (10) and the roller pressing mechanism (3).

7. The automatic roller loading machine for a cross roller bearing with inner ring ball-filled blocks according to claim 6, characterized in that: The cage conveying mechanism (10) comprises an adjusting cylinder (101) mounted on a bushing (71), and a movable seat (102) slidably mounted inside a slide groove (74); an output end of the adjusting cylinder (101) is connected to an end of the movable seat (102); two cage discharge holes (103) are arranged in the middle of the movable seat (102), and cage conveying pipes (104) are inserted into the tops of the two cage discharge holes (103).

8. The automatic roller loading machine for a cross roller bearing with inner ring ball-filled blocks according to claim 1, characterized in that: The roller press-fitting mechanism (3) comprises a press-fitting housing (31) of an L-shaped structure, a press-fitting portion (32) corresponding to a ball loading port (19) being arranged at the bottom of the press-fitting housing (31), a roller press-fitting groove (33), a retaining frame press-fitting groove (34) and a roller pressing assembly (35) being arranged in sequence inside the press-fitting housing (31), and outlets of the roller press-fitting groove (33), the retaining frame press-fitting groove (34) and the roller pressing assembly (35) are all arranged and maintained at the press-fitting portion (32).

9. The automatic roller loading machine for a cross roller bearing with inner ring ball-filled blocks according to claim 8, characterized in that: The roller pressing groove (33) is of an L-shaped structure, and a roller pressing block (15) connected to the pressing cylinder (11) is slidably mounted at a corner of the roller pressing groove (33), and an induction switch for controlling the pressing cylinder (11) is provided at the corner of the roller pressing groove (33).

10. The automatic roller loading machine for a cross roller bearing with inner ring ball-filled blocks according to claim 9, characterized in that: The roller pressing assembly (35) comprises a pressing groove (352) arranged on the side of the press-fitting housing (31), and a movable pressing block (353) of a U-shaped structure is slidably installed inside the pressing groove (352), and an insertion end (354) is arranged at the bottom end of the movable pressing block (353). The roller pressing assembly (35) also comprises a pressing cylinder (351) for driving the movable pressing block (353) to move, and the pressing cylinder (351) is installed on the press-fitting housing (31).

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