Bearing assembling machine

Abstract

The utility model relates to the technical field of bearing assembling, in particular to a bearing assembling machine. The steel ball feeding convenience and accuracy can be improved, and the bearing assembling efficiency is further improved. Comprising a machine frame, a steel ball feeding mechanism installed on the machine frame, a rotary table rotationally installed on the machine frame, a first rotating driver installed at the bottom of the machine frame and providing power for rotation of the rotary table, a mold box installed at the eccentric position of the rotary table and an inclined pushing mechanism. The steel ball feeding mechanism comprises a two-dimensional mechanical sliding table, a lifting driving piece installed on the two-dimensional mechanical sliding table and a material suction assembly installed on the lifting driving piece. An inclined slope part is arranged at the bottom of the mold box away from the center of the rotary table, a mold cavity matched with the bearing outer ring is formed in the mold box, a conical table capable of sliding up and down is arranged in the middle of the mold cavity, and a plurality of elastic pieces are distributed between the conical table and the mold box; the inclined pushing mechanism comprises a pushing cylinder fixedly installed on the rack and a wedge-shaped pushing plate installed at the output end of the pushing cylinder.

Description

Technical Field

[0001] The utility model relates to the technical field of bearing assembly, in particular to a bearing assembly machine. Background Art

[0002] The bearing consists of an inner ring and an outer ring. The outer wall of the inner ring and the inner wall of the outer ring are both provided with sliding grooves for steel balls to roll. The steel balls are installed in the inner ring and the outer ring in a rolling manner. During the bearing production process, steel balls are mostly assembled semi-automatically, which has low assembly efficiency. For this reason, some manufacturers use robots and other equipment to achieve fully automatic assembly of bearings.

[0003] For example, a Chinese invention patent discloses a method and device for assembling a ball bearing, and a ball bearing manufactured by the assembly method (Announcement No. CN107110227B); the assembly device for the ball bearing disclosed therein comprises: an inner and outer ring retaining portion, which holds the outer ring and the inner ring in an eccentric state on the same plane so as to form a gap; a hopper, which arranges a plurality of balls; a ball retaining mechanism, which can retain the balls in a freely attachable and detachable manner; a robot arm, which is provided with a ball retaining mechanism at the end of the arm and can be moved to a specified position; and a control device. A control unit drives a robot arm and a ball holding mechanism based on a control program. The control program sets the gap position with the maximum radial gap in the gap space according to the type of ball bearing. The control unit holds any ball from the storage device in the ball holding mechanism, and uses the robot arm to transport the held ball to the ball insertion position of the set gap space. When the held ball is inserted into the gap space at the maximum gap position, the robot arm is used to move the held ball in the circumferential direction along the raceway surface, while releasing the ball holding performed by the ball holding mechanism.

[0004] However, when the inventors implemented this device, they found the following defects: it was inconvenient to feed the steel balls into the gap between the inner ring and the outer ring, and the assembly efficiency of the bearing needed to be further improved. Utility Model Content

[0005] (1) Technical problems solved

[0006] In view of the deficiencies in the prior art, the utility model provides a bearing assembly machine which improves the convenience and accuracy of steel ball feeding and further improves the efficiency of bearing assembly.

[0007] (2) Technical solution

[0008] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a bearing assembly machine, comprising a frame, a steel ball feeding mechanism mounted on the frame, a turntable rotatably mounted on the frame, a first rotating driver mounted on the bottom of the frame and providing power for the rotation of the turntable, a mold box mounted at the eccentric position of the turntable and an inclined pushing mechanism; the steel ball feeding mechanism comprises a two-dimensional mechanical slide, a lifting drive member mounted on the two-dimensional mechanical slide and a suction component mounted on the lifting drive member, the suction component comprises a disc seat and a plurality of suction nozzles uniformly distributed on the disc seat in the circumferential direction; the mold box is rotatably connected to the turntable on one side near the center of the turntable, and an inclined slope is provided at the bottom of the mold box away from the center of the turntable. A mold cavity that fits with the outer ring of the bearing is provided in the box, and a conical platform that can slide up and down is provided in the middle of the mold cavity. A plurality of elastic parts are arranged between the conical platform and the mold box, and the conical platform and the mold box are elastically connected through the elastic parts; the inclined pushing mechanism includes a pushing cylinder fixedly mounted on the frame and a wedge-shaped pushing plate mounted on the output end of the pushing cylinder; further, the first rotating drive is preferably a rotary cylinder, and other equivalent parts such as a stepping motor that can drive the turntable to rotate can also be used; the lifting drive part can be a driving cylinder, or a linear slide or other equivalent parts with a lifting drive effect; the elastic part is preferably a spring, and the elastic part can also be other equivalent parts with an elastic support effect.

[0009] Preferably, it also includes an inner ring loading mechanism for loading the inner ring of the bearing, the inner ring loading mechanism includes a mounting plate fixedly mounted on the frame, a lifting plate slidably mounted on the mounting plate, a lifting cylinder mounted on the mounting plate and providing power for the lifting and lowering of the lifting plate, a transverse seat slidably mounted on the lifting plate, a transverse cylinder fixedly mounted on the lifting plate and providing power for the sliding of the transverse seat, and a thumb clamp mounted on the transverse seat; the thumb clamp is arranged parallel to the top inclined surface of the wedge-shaped push plate.

[0010] Preferably, it also includes a steel ball feeding mechanism, which includes a vibrating plate, a mold plate rotatably mounted on the frame, and a retaining ring fixedly mounted on the frame and covering the mold plate; the mold plate is provided with an arc-shaped groove that fits with the steel balls, and an annular groove allowing the steel balls to pass through is left between the retaining ring and the outer wall of the mold plate, and a material guide channel allowing a single steel ball to pass through is provided between the vibrating plate and the annular groove, and a second rotating driver that provides power for the rotation of the mold plate is installed at the bottom of the frame; further, the second rotating driver is preferably a rotary cylinder, and other equivalent components such as a stepping motor that can drive the turntable to rotate can also be used.

[0011] Preferably, a loading platform is fixedly installed on the mounting plate, and a U-shaped material guide is provided on the loading platform. The loading platform is arranged parallel to the top inclined end surface of the wedge-shaped push plate; further, the loading platform is inclined toward one side of the mold box; the U-shaped material guide fits the outer diameter of the bearing inner ring.

[0012] Preferably, the thumb clamp is provided with two symmetrically arranged arc-shaped inner support seats.

[0013] Preferably, the mold box, steel ball feeding mechanism and suction assembly are all in two groups, the two mold boxes are symmetrically arranged on the turntable, the two steel ball feeding mechanisms are symmetrically arranged on the frame, and the two suction assemblies are symmetrically arranged on the lifting drive member.

[0014] Preferably, the elastic member is in a naturally supported state, and the distance between the top of the conical platform and the tops of the inner and outer rings of the mold box is at least greater than 2 / 3 of the diameter of the steel ball.

[0015] (3) Beneficial effects

[0016] Compared with the prior art, the utility model provides a bearing assembly machine with the following beneficial effects: the outer ring of the bearing is placed in the mold cavity of the mold box, the first rotary driver drives the turntable to rotate, the mold box moves to the steel ball feeding mechanism, the suction nozzle sucks the steel ball, and then, driven by the two-dimensional mechanical slide and the lifting drive component, the steel ball is sent into the cavity formed between the inner ring of the bearing and the conical table. Under the action of the conical table, the steel ball rolls to the slide groove of the inner ring of the bearing and is initially clamped. Then the turntable rotates and resets, and the mold box moves to the inclined pushing mechanism. The push cylinder on the inclined pushing mechanism is actuated, and the wedge-shaped push plate extends to the bottom of the mold box and contacts the inclined part of the bottom of the mold box. The mold box rotates toward the middle of the turntable under the thrust of the wedge-shaped push plate until the mold box is in the inclined position. The cone-shaped platform moves downward until the central axes of the bearing inner ring and the outer ring are in a collinear line, and the steel balls completely enter the chutes on the bearing inner ring and the bearing outer ring, the wedge-shaped push plate is reset, and the mold box returns to a horizontal position, thus completing the bearing assembly operation; the steel balls are centrally loaded, and under the action of the cone-shaped platform, the steel balls can be accurately and quickly loaded into the chutes on the bearing outer ring, thereby effectively improving the assembly efficiency of the bearing inner ring, bearing outer ring and steel balls, and improving the convenience and accuracy of steel ball loading, thereby further improving the bearing assembly efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a three-dimensional structural diagram of the utility model;

[0018] Figure 2 This is a schematic diagram of the top plan structure of the utility model;

[0019] Figure 3 It is a front view planar structural schematic diagram of the utility model;

[0020] Figure 4 This is a schematic diagram of the internal cross-sectional structure of the mold box of the present invention;

[0021] Figure 5 This utility model Figure 1 A schematic diagram of the partially enlarged structure at center A;

[0022] Markings in the accompanying drawings: 1. Frame; 2. Turntable; 3. First rotating drive; 4. Mold box; 5. Two-dimensional mechanical slide; 6. Lifting drive member; 7. Disc seat; 8. Suction nozzle; 9. Inclined slope; 10. Conical platform; 11. Elastic member; 12. Push cylinder; 13. Wedge-shaped push plate; 14. Mounting plate; 15. Lifting plate; 16. Lifting cylinder; 17. Transverse seat; 18. Transverse cylinder; 19. Thumb clamp; 20. Vibrating disc; 21. Mold disc; 22. Retaining ring; 23. Arc-shaped slot; 24. Material guide channel; 25. Second rotating drive; 26. Loading table; 27. U-shaped material guide member; 28. Arc-shaped inner support seat. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0024] Example 1

[0025] See also Figure 1-5The utility model is a bearing assembly machine, comprising a frame 1, a steel ball feeding mechanism mounted on the frame 1, a turntable 2 rotatably mounted on the frame 1, a first rotating driver 3 mounted at the bottom of the frame 1 and providing power for the rotation of the turntable 2, a mold box 4 mounted at the eccentric position of the turntable 2, and an inclined pushing mechanism; the steel ball feeding mechanism comprises a two-dimensional mechanical slide 5, a lifting drive member 6 mounted on the two-dimensional mechanical slide 5, and a suction component mounted on the lifting drive member 6, the suction component comprising a disc seat 7 and a plurality of suction nozzles 8 uniformly distributed on the disc seat 7 in the circumferential direction; the mold box 4 is rotatably connected to the turntable 2 on one side near the center of the turntable 2, an inclined slope 9 is provided at the bottom of the mold box 4 away from the center of the turntable 2, and a mold cavity is provided in the mold box 4 that fits the outer ring of the bearing. A conical platform 10 that can slide up and down is provided in the middle of the mold cavity. A plurality of elastic parts 11 are arranged between the conical platform 10 and the mold box 4. The conical platform 10 and the mold box 4 are elastically connected through the elastic parts 11; the inclined pushing mechanism includes a pushing cylinder 12 fixedly mounted on the frame 1 and a wedge-shaped pushing plate 13 mounted on the output end of the pushing cylinder 12; further, the first rotating driver 3 is preferably a rotary cylinder, and other equivalent parts such as a stepping motor that can drive the turntable 2 to rotate can also be used; the lifting drive part 6 can use a driving cylinder, or a linear slide or other equivalent parts with a lifting drive effect; the elastic part 11 is preferably a spring, and the elastic part 11 can also use other equivalent parts with an elastic support effect; the suction nozzle 8 is connected to an external negative pressure air source.

[0026] For details, please refer to Figure 3 , and also includes an inner ring loading mechanism for loading the inner ring of the bearing, the inner ring loading mechanism includes a mounting plate 14 fixedly mounted on the frame 1, a lifting plate 15 slidably mounted on the mounting plate 14, a lifting cylinder 16 mounted on the mounting plate 14 and providing power for the lifting and lowering of the lifting plate 15, a transverse seat 17 slidably mounted on the lifting plate 15, a transverse cylinder 18 fixedly mounted on the lifting plate 15 and providing power for the sliding of the transverse seat 17, and a thumb clamp 19 mounted on the transverse seat 17; the thumb clamp 19 is arranged parallel to the top inclined surface of the wedge-shaped push plate 13.

[0027] For details, please refer to Figure 3 A loading platform 26 is fixedly mounted on the mounting plate 14, and a U-shaped guide member 27 is provided on the loading platform 26. The loading platform 26 is arranged parallel to the top inclined end surface of the wedge-shaped push plate 13; further, the loading platform 26 is inclined toward the side of the mold box 4; the U-shaped guide member 27 fits the outer diameter of the inner ring of the bearing.

[0028] For details, please refer to Figure 1 or Figure 3 Two symmetrically arranged arc-shaped inner support seats 28 are installed on the thumb clamp 19.

[0029] Specifically, the elastic member 11 is in a natural supporting state, and the distance between the top of the conical platform 10 and the tops of the inner and outer circles of the mold box 4 is at least greater than 2 / 3 of the diameter of the steel ball.

[0030] The bearing assembly machine provided in this embodiment places the inner ring of the bearing on the loading platform 26. Under the action of gravity, the inner ring of the bearing automatically slides into the U-shaped guide 27, and the thumb clamp 19 clamps the inner ring of the bearing. With the cooperation of the lifting cylinder 16 and the transverse cylinder 18, the inner ring of the bearing is moved to the top of the mold box 4 in an inclined state. The lifting cylinder 16 moves down, and the inner ring of the bearing is placed to the side of the outer ring of the bearing away from the center of the turntable 2. When the top surfaces of the inner ring of the bearing and the outer ring of the bearing are flush, the lifting cylinder 16 stops moving, and the output end of the transverse cylinder 18 extends, and the inner ring of the bearing moves toward the side of the outer ring of the bearing where the steel ball is installed, until the inner ring of the bearing and the outer ring of the bearing are aligned. The centers of the rings coincide, realizing automatic loading of the bearing inner ring, further reducing the amount of manual operation and improving the loading accuracy of the bearing inner ring; and the arc-shaped inner support seat 28 extends into the bearing inner ring, and with the cooperation of the thumb clamp 19, the arc-shaped inner support seat 28 is clamped with the bearing inner ring, and the bearing inner ring can be clamped without contacting the outer wall of the bearing inner ring, effectively avoiding interference with the assembly of the bearing inner ring, steel ball and bearing outer ring; and after the steel ball is placed in the bearing outer ring, the upper part of the steel ball is exposed from the top of the bearing outer ring less than 1 / 3 of the diameter of the steel ball, avoiding the steel ball rolling out of the bearing outer ring under the action of inertia when the mold box 4 is tilted.

[0031] Example 2

[0032] The bearing assembly machine provided in Example 1 is further optimized. For details, please refer to Figure 1-3 , also includes a steel ball feeding mechanism, which includes a vibration plate 20, a die plate 21 rotatably mounted on the frame 1, and a retaining ring 22 fixedly mounted on the frame 1 and covering the die plate 21; an arc-shaped groove 23 that fits the steel ball is provided on the die plate 21, and an annular groove allowing the steel ball to pass through is left between the retaining ring 22 and the outer wall of the die plate 21, and a material guide channel 24 allowing a single steel ball to pass through is provided between the vibration plate 20 and the annular groove, and a second rotation driver 25 that provides power for the rotation of the die plate 21 is installed at the bottom of the frame 1; further, the second rotation driver 25 is preferably a rotary cylinder, and other equivalent components such as a stepping motor that can drive the turntable 2 to rotate can also be used.

[0033] The mold box 4, the steel ball feeding mechanism and the suction assembly are all in two groups. The two mold boxes 4 are symmetrically arranged on the turntable 2, the two steel ball feeding mechanisms are symmetrically arranged on the frame 1, and the two suction assemblies are symmetrically arranged on the lifting drive 6.

[0034] In the bearing assembly machine provided by this embodiment, steel balls are placed in a vibration plate 20. Under the action of the vibration plate 20, the steel balls enter the material guide channel 24 in rows, and individual steel balls enter the arc-shaped slots 23 on the mold plate 21 in turn. The second rotation driver 25 drives the mold plate 21 to rotate, and the steel balls enter the corresponding arc-shaped slots 23 in turn, so that the steel balls are arranged equidistantly around the outer circle of the mold plate 21, which is convenient for the suction component to accurately absorb the steel balls and effectively reduces the incidence rate of steel ball leakage by the suction component; and the two groups of settings of the mold box 4, the steel ball feeding mechanism and the suction component can realize uninterrupted and continuous operation of bearing assembly. When assembling one group of bearings, material is fed to the inner ring of the bearing in the other mold box 4, shortening the time interval between the two bearing assembly operations and further improving the bearing assembly efficiency.

[0035] When in use, the outer ring of the bearing is placed in the mold cavity of the mold box 4, the first rotary driver 3 drives the turntable 2 to rotate, the mold box 4 moves to the steel ball feeding mechanism, the steel ball feeding mechanism feeds the steel balls, the suction nozzle 8 absorbs the steel balls evenly distributed around the mold plate 21, and is driven by the two-dimensional mechanical slide 5 and the lifting drive 6 to deliver the steel balls into the cavity formed between the inner ring of the bearing and the conical platform 10. Under the action of the conical platform 10, the steel balls roll to the slide groove of the inner ring of the bearing and are initially fixed. Then the turntable 2 rotates and resets, the mold box 4 moves to the inclined pushing mechanism, the push cylinder 12 on the inclined pushing mechanism is actuated, and the wedge-shaped push plate 13 extends under the mold box 4 and is aligned with the mold The inclined part at the bottom of the box 4 contacts the inclined part, and the mold box 4 rotates toward the middle of the turntable 2 under the thrust of the wedge-shaped push plate 13 until the mold box 4 is in a tilted state, and the steel balls in the outer ring of the bearing roll to the side close to the center of the turntable 2. The inner ring of the bearing is placed in the cavity away from the center of the turntable 2 through the inner ring loading mechanism. While pressing the inner ring of the bearing downward, the inner ring of the bearing is pushed toward the center of the turntable 2. At this time, the conical platform 10 moves down until the central axes of the inner ring of the bearing and the outer ring of the bearing are collinear, and the steel balls completely enter the slide grooves on the inner ring of the bearing and the outer ring of the bearing. The wedge-shaped push plate 13 is reset, and the mold box 4 is restored to a horizontal position, and the assembled bearing can be unloaded.

[0036] It should be noted that references in this specification to "one embodiment," "an embodiment," "an exemplary embodiment," "some embodiments," and the like indicate that the described embodiment may include a particular feature, structure, or characteristic, but not necessarily every embodiment includes that particular feature, structure, or characteristic. Furthermore, such phrases do not necessarily refer to the same embodiment. Furthermore, when a particular feature, structure, or characteristic is described in conjunction with an embodiment, it is within the knowledge of those skilled in the art to implement such feature, structure, or characteristic in conjunction with other embodiments, whether explicitly described or not.

[0037] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some or all of the technical features therein. These modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A bearing assembly machine, characterized in that; The invention comprises a frame (1), a steel ball feeding mechanism mounted on the frame (1), a turntable (2) rotatably mounted on the frame (1), a first rotating driver (3) mounted at the bottom of the frame (1) and providing power for the turntable (2) to rotate, a mold box (4) mounted at an eccentric position of the turntable (2), and an inclined pushing mechanism; the steel ball feeding mechanism comprises a two-dimensional mechanical slide (5), a lifting drive member (6) mounted on the two-dimensional mechanical slide (5), and a material suction component mounted on the lifting drive member (6); the material suction component comprises a disc seat (7) and a plurality of suction nozzles (8) uniformly distributed on the disc seat (7); the mold box (4) is temporarily The side near the center of the turntable (2) is rotatably connected to the turntable (2); the bottom of the mold box (4) is provided with an inclined slope (9) away from the center of the turntable (2); a mold cavity is provided in the mold box (4) and fits with the outer ring of the bearing; a conical platform (10) that can slide up and down is provided in the middle of the mold cavity; a plurality of elastic members (11) are arranged between the conical platform (10) and the mold box (4); the conical platform (10) and the mold box (4) are elastically connected through the elastic members (11); the inclined pushing mechanism includes a pushing cylinder (12) fixedly mounted on the frame (1) and a wedge-shaped pushing plate (13) mounted on the output end of the pushing cylinder (12).

2. The bearing assembly machine according to claim 1, characterized in that: The invention also includes an inner ring loading mechanism for loading the inner ring of the bearing, wherein the inner ring loading mechanism includes a mounting plate (14) fixedly mounted on the frame (1), a lifting plate (15) mounted on the mounting plate (14) and slidingly mounted on the mounting plate (14), a lifting cylinder (16) mounted on the mounting plate (14) and providing power for the lifting and lowering of the lifting plate (15), a transverse seat (17) slidably mounted on the lifting plate (15), a transverse cylinder (18) fixedly mounted on the lifting plate (15) and providing power for the sliding of the transverse seat (17), and a thumb clamp (19) mounted on the transverse seat (17); the thumb clamp (19) is arranged parallel to the top inclined surface of the wedge-shaped push plate (13).

3. The bearing assembly machine according to claim 2, characterized in that: The invention also includes a steel ball feeding mechanism, which includes a vibration plate (20), a die plate (21) rotatably mounted on a frame (1), and a retaining ring (22) fixedly mounted on the frame (1) and covering the die plate (21); an arc-shaped groove (23) is provided on the die plate (21) for fitting with the steel ball, an annular groove for allowing the steel ball to pass through is left between the retaining ring (22) and the outer wall of the die plate (21), a material guide channel (24) for allowing a single steel ball to pass through is provided between the vibration plate (20) and the annular groove, and a second rotation driver (25) for providing power for the rotation of the die plate (21) is installed at the bottom of the frame (1).

4. The bearing assembly machine according to claim 2, characterized in that: A loading platform (26) is fixedly mounted on the mounting plate (14), a U-shaped material guide (27) is provided on the loading platform (26), and the loading platform (26) is arranged parallel to the top inclined end surface of the wedge-shaped push plate (13).

5. The bearing assembly machine according to claim 2, characterized in that: Two symmetrically arranged arc-shaped inner support seats (28) are installed on the thumb clamp (19).

6. The bearing assembly machine according to claim 3, characterized in that: The mold box (4), the steel ball feeding mechanism and the material suction assembly are all in two groups. The two mold boxes (4) are symmetrically arranged on the turntable (2), the two steel ball feeding mechanisms are symmetrically arranged on the frame (1), and the two material suction assemblies are symmetrically arranged on the lifting drive member (6).

7. The bearing assembly machine according to claim 1, characterized in that: The elastic member (11) is in a natural supporting state, and the distance between the top of the conical platform (10) and the top of the outer ring of the bearing placed in the mold box (4) is at least greater than 2 / 3 of the diameter of the steel ball.

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