An automatic ball loading and assembly machine for bearings

Abstract

This utility model belongs to the field of bearing assembly technology and discloses an automatic bearing ball loading and assembly machine, including a frame with an integrally formed boss on the top and an inverted U-shaped frame mounted on the top of the frame; an outer ring positioning seat mounted on the boss, with a feeding port on the outer ring positioning seat, driven by a drive component; a feeding guide rail, inclined and mounted on the frame via a support rod, with the lower end of the feeding guide rail feeding balls into the outer ring positioning seat through the feeding port; and an assembly mechanism including a hydraulic push cylinder, with a pressure head mounted on the piston end of the hydraulic push cylinder, and a protruding post mounted on the pressure head. This utility model, through the synergistic effect of gravity ball feeding via the feeding guide rail, precise positioning by a servo motor, and automatic assembly by the hydraulic push cylinder, can replace manual ball loading and assembly operations, thereby improving work efficiency. Combined with magnetic ring adsorption and a limiting ring design, it can avoid damage to parts and reduce the product defect rate.

Description

Technical Field

[0001] This utility model relates to the field of bearing assembly technology, and in particular to an automatic bearing ball loading and assembly machine. Background Technology

[0002] The automatic ball loading and assembly machine for bearings is a type of automated assembly equipment. Its main functions are automatic ball loading (automatically loading the balls (steel balls) into the inner and outer rings of the bearing according to a preset number and arrangement) and automatic assembly (automatically assembling the inner ring, outer ring, cage and other components of the bearing into a complete bearing).

[0003] Currently, "ball loading" and "sleeving" are key processes in the assembly process. The current manual ball loading and sleeve assemblies are inefficient, labor-intensive, and prone to damaging bearing parts due to improper operation, thus affecting bearing quality. Therefore, we propose an automatic ball loading and sleeve assemblies machine for bearings. Utility Model Content

[0004] In view of the problems of low efficiency, high labor intensity, and easy damage to bearing parts due to improper operation in the existing manual ball loading and assembly methods, which affect the bearing quality, this utility model is proposed.

[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution:

[0006] An automatic bearing ball loading and assembly machine includes a frame, the top of which has an integrally formed boss, and an inverted U-shaped frame is installed on the top of the frame;

[0007] An outer ring positioning seat is mounted on the protrusion. The outer ring positioning seat has an inclined feeding port and is driven by a driving component.

[0008] The feeding guide is inclined and is mounted on the frame by a support rod. The lower end of the feeding guide supplies balls to the outer ring inside the outer ring positioning seat through the feeding port, and the higher end of the feeding guide is located below the ball outlet of the external ball supply mechanism.

[0009] The assembly mechanism includes a hydraulic push cylinder mounted on the inverted U-shaped frame. The piston end of the hydraulic push cylinder is equipped with a pressure head, and the pressure head is equipped with a protrusion that matches the inner ring of the bearing.

[0010] As a technical solution of the automatic bearing ball loading and unloading machine of this utility model, the machine frame is equipped with support legs at the four corners of the bottom edge, and the support legs are provided with elongated oval fixing holes for fixing.

[0011] As a technical solution of the automatic bearing ball loading and assembly machine of this utility model, the driving component includes a drive shaft that is vertically arranged and rotatably installed in the boss, a servo motor is installed in the frame, the output shaft of the servo motor is connected to one end of the drive shaft, and the other end of the drive shaft is installed at the bottom of the outer ring positioning seat.

[0012] As a technical solution of the automatic ball loading and unloading machine for bearings described in this utility model, the top of the outer ring positioning seat is provided with a positioning groove adapted to the outer ring of the bearing, and the bottom of the outer ring positioning seat has an integrally formed limiting ring adapted to the limiting ring groove on the top of the boss. The outer ring positioning seat is rotatably mounted on the boss through the limiting ring and the limiting ring groove.

[0013] As a technical solution of the automatic bearing ball loading and unloading machine of this utility model, the bottom of the pressure head has an integrally formed protrusion, and the protrusion is installed on the protrusion. A magnetic ring that is magnetically connected to the inner ring of the bearing is embedded in the connecting surface of the protrusion and the protrusion.

[0014] As a technical solution of the automatic bearing ball loading and unloading machine of this utility model, it further includes a PLC controller that controls the servo motor and the hydraulic push cylinder via cable, and the PLC controller integrates a human-machine interface.

[0015] Compared with the prior art, the present invention has at least the following beneficial effects:

[0016] 1. This utility model, through the synergistic effect of gravity ball feeding via a feeding guide rail, precise positioning by a servo motor, and automatic sleeve assembly by a hydraulic push cylinder, can replace manual ball loading and sleeve assembly operations, thereby improving work efficiency. Furthermore, the combination of magnetic ring adsorption and limit ring design can prevent damage to parts and reduce the product defect rate.

[0017] 2. This utility model, by adopting a PLC controller for programmed control, can achieve "one-button operation". At the same time, the human-machine interface supports flexible parameter adjustment to adapt to different bearing models. Combined with the integrated structure of the elongated hole of the support leg and the boss, it can ensure the long-term operational stability of the equipment. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Among them:

[0019] Figure 1 This is a schematic diagram of the main structure of this utility model.

[0020] Figure 2 This is a cross-sectional structural diagram of the present invention.

[0021] Figure 3 For the present utility model Figure 2 Enlarged structural diagram at point A in the middle.

[0022] Figure 4 For the present utility model Figure 2 Enlarged structural diagram at point B.

[0023] Explanation of reference numerals in the attached figures:

[0024] In the diagram: 1. Frame; 101. Boss; 102. Inverted U-shaped frame; 103. Support leg; 104. Oblong fixing hole; 2. Drive shaft; 3. Servo motor; 4. Outer ring positioning seat; 401. Positioning groove; 402. Feed port; 403. Limit ring; 5. Feeding guide rail; 6. Hydraulic push cylinder; 7. Press head; 701. Protrusion; 702. Magnetic ring; 8. Protruding column; 9. PLC controller; 901. Human-machine interface. Detailed Implementation

[0025] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0026] Reference Figures 1-4 An automatic bearing ball loading and assembly machine is provided. This automatic bearing ball loading and assembly machine includes a frame 1. The top of the frame 1 has an integrally formed boss 101. An inverted U-shaped frame 102 is installed on the top of the frame 1. The design of the boss 101 and the inverted U-shaped frame 102 can provide stable support and ensure the overall rigidity of the equipment.

[0027] Outer ring positioning seat 4 is mounted on boss 101. The outer ring positioning seat 4 has an inclined feeding port 402. The outer ring positioning seat 4 is driven by a driving component. The cooperation between the outer ring positioning seat 4 and the inclined feeding port 402 can realize the automatic sliding of steel balls into the outer ring through the inclined design, reducing manual intervention.

[0028] The feeding guide rail 5 is inclined and is mounted on the frame 1 by a support rod. The lower end of the feeding guide rail 5 feeds balls to the outer ring inside the outer ring positioning seat 4 through the feeding port 402, and the higher end of the feeding guide rail 5 is located below the ball outlet of the external ball supply mechanism. The inclined design of the feeding guide rail 5 can automatically transport steel balls to the outer ring by gravity, thereby improving the ball supply efficiency.

[0029] The assembly mechanism includes a hydraulic push cylinder 6 mounted on an inverted U-shaped frame 102. A pressure head 7 is mounted on the piston end of the hydraulic push cylinder 6. A protrusion 8 adapted to the inner ring of the bearing is mounted on the pressure head 7. The cooperation between the hydraulic push cylinder 6 and the protrusion 8 can accurately press the inner ring together, realize automated assembly, and avoid human operation errors.

[0030] Reference Figure 1 and Figure 2 Support legs 103 are installed at the four corners of the bottom of the frame 1. The support legs 103 are provided with elongated oval fixing holes 104 for fixing. The design of the elongated oval fixing holes 104 facilitates fine-tuning of the position during equipment installation, enhances stability, and reduces the impact of vibration.

[0031] Reference Figure 2 and Figure 3 The driving component includes a drive shaft 2 that is vertically set and rotatably mounted in the boss 101. A servo motor 3 is installed in the frame 1. The output shaft of the servo motor 3 is connected to one end of the drive shaft 2. The other end of the drive shaft 2 is installed at the bottom of the outer ring positioning seat 4. The design of the servo motor 3 driving the outer ring positioning seat 4 can realize the precise positioning and rotation of the outer ring, ensuring the uniformity of ball loading.

[0032] Reference Figure 2 and Figure 3 The top of the outer ring positioning seat 4 is provided with a positioning groove 401 that is adapted to the outer ring of the bearing. The bottom of the outer ring positioning seat 4 has an integrally formed limiting ring 403 that is adapted to the limiting ring groove on the top of the boss 101. The outer ring positioning seat 4 is rotatably mounted on the boss 101 through the limiting ring 403 and the limiting ring groove. The design of the positioning groove 401 and the limiting ring 403 can double guarantee the positional accuracy of the outer ring and prevent deviation during the ball loading process.

[0033] Reference Figure 2 and Figure 4 The bottom of the pressure head 7 has an integrally formed protrusion 701, and the protrusion 8 is installed on the protrusion 701. The connecting surface of the protrusion 701 and the protrusion 8 is embedded with a magnetic ring 702 that is magnetically connected to the inner ring of the bearing. The magnetic ring 702 is designed to attract the inner ring, which can prevent the inner ring from falling off or shifting during pressing and improve the success rate of fitting.

[0034] Reference Figures 1-4 It also includes a PLC controller 9 that controls the servo motor 3 and the hydraulic cylinder 6 via cable. The PLC controller 9 integrates a human-machine interface 901, which can support setting bearing model parameters, assembly pressure parameters, servo motor 3 speed parameters, and cycle time. The design of the PLC controller 9 and the human-machine interface 901 enables adjustable parameters, automated process monitoring, and reduces the difficulty of operation.

[0035] The working principle of this utility model is as follows: Equipment preparation: Place the outer ring of the bearing into the positioning groove 401, and the inner ring is attracted to the magnetic ring 702 of the protrusion 8. Then, use the human-machine interface 901 to select the bearing model. The PLC controller 9 can automatically set the number of balls and the closing pressure.

[0036] Automatic ball loading: The external ball supply mechanism feeds steel balls into the high end of the feeding guide rail 5. The steel balls slide into the loading port 402 along the feeding guide rail 5. Then, the servo motor 3 drives the outer ring positioning seat 4 to rotate slowly (5-10 rpm) to ensure that the steel balls are evenly distributed in the outer ring groove.

[0037] Combined execution: PLC controller 9 triggers hydraulic cylinder 6 to move downward, and pressure head 7 drives the inner ring to press vertically into the outer ring until the set value is reached, and then holds the pressure for 0.5 seconds (to eliminate elastic deformation).

[0038] Reset and Finished Product Removal: The hydraulic push cylinder 6 rises back to the origin and removes the assembled bearing. Then, the outer ring positioning seat 4 rotates back to the ball loading station and enters the next cycle.

[0039] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A bearing automatic ball loading and sleeve fitting machine characterized by: include: The frame (1) has an integrally formed boss (101) on its top and an inverted U-shaped frame (102) is installed on its top. Outer ring positioning seat (4), the outer ring positioning seat (4) is installed on the boss (101), the outer ring positioning seat (4) is provided with an inclined feeding port (402), and the outer ring positioning seat (4) is driven by a driving component; Feeding guide (5), the feeding guide (5) is inclined and is installed on the frame (1) by a support rod. The lower end of the feeding guide (5) supplies balls to the outer ring inside the outer ring positioning seat (4) through the feeding port (402), and the higher end of the feeding guide (5) is located below the ball outlet of the external ball supply mechanism. The assembly mechanism includes a hydraulic push cylinder (6) mounted on the inverted U-shaped frame (102), and a pressure head (7) is mounted on the piston end of the hydraulic push cylinder (6). A protrusion (8) adapted to the inner ring of the bearing is mounted on the pressure head (7).

2. The bearing automatic ball loading and sleeve fitting machine according to claim 1, characterized in that: The frame (1) is equipped with legs (103) at the four corners of its bottom edge, and the legs (103) are provided with elongated oval fixing holes (104) for fixing.

3. The automatic bearing ball loading and assembly machine according to claim 1, characterized in that: The driving component includes a drive shaft (2) that is vertically set and rotatably installed in the boss (101), a servo motor (3) is installed in the frame (1), the output shaft of the servo motor (3) is connected to one end of the drive shaft (2), and the other end of the drive shaft (2) is installed at the bottom of the outer ring positioning seat (4).

4. The automatic bearing ball loading and assembly machine according to claim 3, characterized in that: The top of the outer ring positioning seat (4) is provided with a positioning groove (401) that is adapted to the outer ring of the bearing. The bottom of the outer ring positioning seat (4) has an integrally formed limiting ring (403) that is adapted to the limiting ring groove on the top of the boss (101). The outer ring positioning seat (4) is rotatably mounted on the boss (101) through the limiting ring (403) and the limiting ring groove.

5. The automatic bearing ball loading and assembly machine according to claim 1, characterized in that: The bottom of the pressure head (7) has an integrally formed protrusion (701), and the protrusion (8) is mounted on the protrusion (701). A magnetic ring (702) that is magnetically connected to the inner ring of the bearing is embedded on the connecting surface of the protrusion (701) and the protrusion (8).

6. The automatic bearing ball loading and assembly machine according to claim 3, characterized in that: It also includes a PLC controller (9) that controls the servo motor (3) and the hydraulic push cylinder (6) via cable, and the PLC controller (9) integrates a human-machine interface (901).

Images