Device for fixing bearing through rolling and closing

Abstract

A device for rolling, closing and fixing a bearing belongs to the technical field of machining and comprises a shell, the bearing, an electric rotating platform, a servo electric cylinder, a pressure sensor, a universal ball bearing, a clamping base, a pneumatic chuck, a PLC (programmable logic controller) control system and the like. Parts are assembled through the shell and the bearing on the clamping base, and a steel ball is used for rolling and closing up after assembly. A pressure sensor is arranged at the tail end of a servo electric cylinder telescopic rod, and a universal ball bearing is installed at the bottom of the pressure sensor. The pneumatic chuck is installed on the electric rotating platform, the clamping jaw is driven to clamp the clamping base, the servo electric cylinder is controlled by the PLC control system to move, the universal ball bearing is driven to make contact with the position, needing rolling, of the part shell, and the rolling force is gradually increased till the rolling requirement is met. The problems of poor mounting reliability, low efficiency and the like caused by rolling and fixing the bearing by an operator through a self-made simple ball tool are solved, the standard automatic operation of rolling, closing and fixing the bearing can be realized, and the fixing quality and efficiency are remarkably improved.

Description

Technical Field

[0001] This invention belongs to the field of machining technology and relates to a device for rolling and fixing bearings. Background Technology

[0002] Currently, some types of bearings, after being installed in the housing, require rolling with steel balls to secure them. Excessive rolling pressure can affect the bearing's flexibility after installation; insufficient rolling pressure can cause the bearing to easily detach from the housing. Both situations pose serious quality risks.

[0003] Currently, ball bearing rolling finishing typically involves mounting the part on a lathe using clamping methods such as a faceplate, and making a simple ball bearing tool ( Figure 1 The bearing is clamped onto the lathe tool post. After the chuck rotates, the housing is rolled using a simple ball bearing tool based on experience. The rolling position is not precise enough, the rolling force value depends entirely on experience, and excessive rolling force may cause the balls to seize up and not rotate, plowing grooves into the housing and damaging the part. In short, the current rolled bearing has poor reliability, low production efficiency, and is prone to damaging parts. Summary of the Invention

[0004] To address the problems existing in the prior art, this invention provides a device for rolling and fixing bearings. This invention allows for setting the rolling pressure and the rolling position to be relatively precise. It is easy to operate, has automated production capabilities, and high production efficiency.

[0005] To achieve the above objectives, the technical solution adopted by the present invention is as follows:

[0006] A device for rolling and fixing bearings includes a housing 1, a bearing 2, an electric rotary platform 3, a servo cylinder 4, a pressure sensor 5, a universal ball bearing 6, a clamping base 7, a pneumatic chuck 8, a horizontal fixing plate 9, a transverse guide rail 10, a vertical fixing plate 11, a fixing frame 12, an equipment platform, an air source, and a PLC control system. Specifically:

[0007] The servo electric cylinder 4 is mounted on the fixed frame 12 via a fixed plate 11. A pressure sensor 5 is provided at the end of its telescopic rod, and a universal ball bearing 6 is installed at the bottom of the pressure sensor 5. The fixed frame 12 is fixed on the equipment platform.

[0008] The bottom of the electric rotating platform 3 is mounted on the horizontal fixed plate 9, and the bottom of the horizontal fixed plate 9 is equipped with a horizontal guide rail 10, which can move horizontally. A pneumatic chuck 8 is installed on the electric rotating platform 3. The pneumatic chuck 8 drives the jaws to clamp the clamping base 7. The horizontal guide rail 10 is moved to position the clamping base 7 directly below the universal ball bearing 6. The servo cylinder 4 is controlled by the PLC control system to move, so that the universal ball bearing 6 contacts the part housing 2 at the required rolling position, and gradually moves to increase the rolling force until the rolling requirements are met.

[0009] The clamping base 7 is provided with a housing 1 and a bearing 2. Parts are assembled by using the housing 1 and the bearing 2. After assembly, steel balls are used to roll and close the joint to ensure that the bearing 2 is stably fixed in the hole of the housing 1 and can rotate flexibly.

[0010] The movement of the pneumatic chuck 8, servo electric cylinder 4, transverse guide rail 10, and electric rotary platform 3 is controlled by a PLC control system.

[0011] Furthermore, the clamping base 7 has a disc-shaped structure with a hollow interior. A radial groove 7-1 is machined on the outer ring for placing parts. The interior of the clamping base 7 after hollowing out has a two-tiered structure, including a central circular bottom surface 7-3 and an annular surface 7-4. A mandrel 7-2 is located at the center of the clamping base 7, coaxial with the outer circle, and clearance-fitted with the inner ring hole of the bearing 2. That is, the mandrel 7-2 is located in the middle of the central circular bottom surface 7-3. The large circular groove in the hollowed-out portion forms the annular surface 7-4, its diameter clearance-fitted with the part's shape. The small circular groove in the hollowed-out portion forms the central circular bottom surface 7-3, used to avoid the protruding part of the bearing 2. The groove opening is used to avoid the screw portion of the housing 1, thus allowing the end face of the part housing 1 to fit tightly. Figure 4 The position indicated by the middle arrow is exactly where the toroidal surface 7-4 is located.

[0012] Furthermore, the thickness of the central circular bottom surface 7-3 is less than the thickness of the annular surface 7-4. The groove 7-1 is flush with the annular surface 7-4.

[0013] Furthermore, the pneumatic chuck 8 can move laterally under the drive of the transverse guide rail 10. The transverse movement axis is perpendicular to the axis of the servo cylinder 4, pressure sensor 5 and universal ball bearing 6. The axis of the pneumatic chuck 8 can be moved to coincide with the axis of the servo cylinder 4, pressure sensor 5 and universal ball bearing 6, or it can be moved to a distance position that meets the rolling requirements.

[0014] Furthermore, the pneumatic chuck 8 provides pure pressure through an air source, thereby providing power.

[0015] Furthermore, the servo cylinder 4 is a pre-fabricated part, capable of providing downward movement and pressure, with an external thread at the end of the telescopic rod. The external thread of the telescopic rod of the servo cylinder 4 is connected to the internal thread of the pressure sensor 5, and the internal thread at the other end of the pressure sensor 5 is connected to the external thread of the universal ball bearing 6, with all three axes aligned on the same axis.

[0016] Furthermore, the pressure sensor 5 is a pre-assembled part, with internal threads at both ends; the universal ball bearing 6 is a pre-assembled part, with a omnidirectional rotating steel ball at one end, and the diameter of the steel ball in the universal ball bearing 6 is determined according to... Figure 1 and Figure 2 The required diameter is used to select this type of bearing, which can withstand greater rolling pressure without seizing.

[0017] Furthermore, the pneumatic chuck 8 is a finished product that can drive the jaws to clamp the mounting base 7; the pneumatic chuck 8 is bolted to the electric rotary platform 3, and the two axes are coaxial.

[0018] Furthermore, the horizontal fixed plate 9 is fixedly connected to the transverse guide rail 10 via a bolted electric rotating platform 3; the transverse guide rail 10 is a finished product containing a motor, which can move and lock itself.

[0019] Furthermore, the electric rotary platform 3 is a finished product.

[0020] The beneficial effects of this invention are:

[0021] This invention solves the problems of poor installation reliability and low efficiency that occur when operators rely on homemade simple ball bearing tools to roll and fix bearings. This device enables standardized automated operation of rolling and fixing bearings, significantly improving fixing quality and efficiency. Attached Figure Description

[0022] Figure 1 A simple ball bearing tool was made using existing technology;

[0023] Figure 2 This invention relates to a bearing rolling end fixing device.

[0024] Figure 3 For the part clamping diagram;

[0025] Figure 4 This is a schematic diagram of the mounting base.

[0026] In the diagram: 1. Housing, 2. Bearing, 3. Electric rotary platform, 4. Servo cylinder, 5. Pressure sensor, 6. Universal ball bearing, 7. Clamping base, 8. Pneumatic chuck, 9. Horizontal fixed plate, 10. Horizontal guide rail, 11. Vertical fixed plate, 12. Fixing frame.

[0027] 7-1 Groove, 7-2 Mandrel, 7-3 Central circular bottom surface, 7-4 Circular surface. Detailed Implementation

[0028] The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0029] like Figure 2 As shown, this embodiment provides a device for rolling and fixing bearings, including a housing 1, a bearing 2, an electric rotary platform 3, a servo cylinder 4, a pressure sensor 5, a universal ball bearing 6, a clamping base 7, a pneumatic chuck 8, a horizontal fixing plate 9, a horizontal guide rail 10, a vertical fixing plate 11, a fixing frame 12, an equipment platform, an air source, and a PLC control system. Specifically:

[0030] The servo electric cylinder 4 is mounted on the fixed frame 12 via a fixed plate 11. A pressure sensor 5 is located at the end of its telescopic rod, and a universal ball bearing 6 is mounted at the bottom of the pressure sensor 5. The fixed frame 12 is fixed to the equipment platform. The bottom of the electric rotating platform 3 is mounted on a horizontal fixed plate 9, and a transverse guide rail 10 is mounted on the bottom of the horizontal fixed plate 9, allowing for horizontal movement. A pneumatic chuck 8 is mounted on the electric rotating platform 3. The pneumatic chuck 8 drives the jaws to clamp the clamping base 7. By moving the transverse guide rail 10, the clamping base 7 is positioned directly below the universal ball bearing 6. The servo electric cylinder 4 is controlled by a PLC control system to move, causing the universal ball bearing 6 to contact the required rolling position of the part housing 2, and gradually increasing the rolling pressure until the rolling requirements are met. The clamping base 7 has a housing 1 and a bearing 2. Parts are assembled using the housing 1 and bearing 2. The part clamping diagram is shown below. Figure 3 As shown, after assembly, steel balls are used for rolling to close the bearing 2, ensuring that it is stably fixed in the hole of the housing 1 and can rotate flexibly. The movement of the pneumatic chuck 8, servo cylinder 4, transverse guide rail 10, and electric rotary platform 3 is controlled by a PLC control system.

[0031] In this embodiment, the structural schematic diagram of the clamping base 7 is shown below. Figure 4 As shown, the main body is a disc structure with a hollow interior. The outer ring has radially machined grooves 7-1 for placing parts. The hollowed-out clamping base 7 has a two-tiered internal structure, including a central circular bottom surface 7-3 and an annular surface 7-4. A mandrel 7-2 is located at the center of the clamping base 7, coaxial with the outer circle, and clearance-fitted with the inner ring hole of the bearing 2. That is, the mandrel 7-2 is located in the middle of the central circular bottom surface 7-3. The large circular groove in the hollowed-out portion forms the annular surface 7-4, its diameter clearance-fitted with the part's shape. The small circular groove in the hollowed-out portion forms the central circular bottom surface 7-3, used to avoid the protruding part of the bearing 2. The groove opening is used to avoid the screw portion of the housing 1, thus allowing the end face of the part housing 1 to fit tightly. Figure 4 The position indicated by the middle arrow is exactly where the toroidal surface 7-4 is located.

[0032] In this embodiment, the pneumatic chuck 8 can move laterally under the drive of the transverse guide rail 10. The transverse movement axis is perpendicular to the axis of the servo cylinder 4, pressure sensor 5 and universal ball bearing 6. The axis of the pneumatic chuck 8 can be moved to coincide with the axis of the servo cylinder 4, pressure sensor 5 and universal ball bearing 6, or it can be moved to a distance position that satisfies the rolling pressure.

[0033] In this embodiment, the pneumatic chuck 8 provides pure pressure through an air source, thereby providing power.

[0034] In this embodiment, the servo cylinder 4 is a finished product, providing a certain downward movement and pressure, and the end of the telescopic rod has an external thread. The external thread of the telescopic rod of the servo cylinder 4 is connected to the internal thread of the pressure sensor 5, and the internal thread of the other end of the pressure sensor 5 is connected to the external thread of the universal ball bearing 6, and the three axes are on the same axis.

[0035] In this embodiment, the pressure sensor 5 is a finished product, with internal threads at both ends; the universal ball bearing 6 is a finished product, with a omnidirectional rotating steel ball at one end, and the diameter of the steel ball in the universal ball bearing 6 is determined according to... Figure 1 and Figure 2 The required diameter is used to select this type of bearing, which can withstand greater rolling pressure without seizing.

[0036] In this embodiment, the pneumatic chuck 8 is a finished product that can drive the jaws to clamp the mounting base 7; the pneumatic chuck 8 is bolted to the electric rotary platform 3, and the two axes are coaxial.

[0037] In this embodiment, the horizontal fixed plate 9 is fixedly connected to the horizontal guide rail 10 via a bolted electric rotating platform 3; the horizontal guide rail 10 is a finished product containing a motor, which can move and lock itself.

[0038] This embodiment also provides a method for using the device for fixing bearings by rolling and closing, including the following steps:

[0039] Step 1: The equipment position is zeroed. At this time, the axes of the servo cylinder 4, pressure sensor 5, universal ball bearing 6, pneumatic chuck 8 and electric rotary platform 3 are all on the same axis.

[0040] Step 2: Adjust the bearing inner hole axis of the part to be coaxial with the bearing hole of the part, then put the part into the clamping base 7, clamp the clamping base onto the pneumatic chuck 8 and clamp it firmly.

[0041] Step 3: Control the transverse guide rail 10 to move to the required position via the PLC control system to ensure that the rolling position of the universal ball bearing 6 meets the requirements. Figure 1 or Figure 2 Require;

[0042] Step 4: Drive the servo cylinder 4 to move through the PLC control system, so that the universal ball bearing 6 contacts the required rolling position of the part housing 2, and gradually move to increase the rolling force until the rolling requirements are met.

[0043] Step 5: Drive the electric rotary platform to rotate through the PLC control system, which in turn drives the parts to rotate and causes the universal ball bearing 6 to gradually roll and close the opening.

[0044] Step 6: After the rolling process is complete, remove the parts, flip them over, and repeat the above process.

[0045] The above specific embodiments further illustrate the purpose, technical solution and beneficial effects of this application. It should be understood that the above are only specific embodiments of this application and are not intended to limit the scope of protection of this application. Any modifications, equivalent substitutions, improvements, etc., made on the basis of the technical solution of this application should be included within the scope of protection of this application.

Claims

1. A device for fixing a bearing by rolling and closing the bearing, characterized in that, The device includes a housing (1), bearings (2), an electric rotary platform (3), a servo cylinder (4), a pressure sensor (5), a universal ball bearing (6), a clamping base (7), a pneumatic chuck (8), a horizontal fixed plate (9), a horizontal guide rail (10), a vertical fixed plate (11), a fixing frame (12), an equipment stand, an air source, and a PLC control system; specifically: The servo electric cylinder (4) is mounted on the fixed frame (12) via a vertical fixed plate (11), and a pressure sensor (5) is provided at the end of its telescopic rod. A universal ball bearing (6) is installed at the bottom of the pressure sensor (5); the fixed frame (12) is fixed on the equipment platform. The bottom of the electric rotating platform (3) is mounted on the horizontal fixed plate (9), and the bottom of the horizontal fixed plate (9) is mounted on the horizontal guide rail (10); the electric rotating platform (3) is mounted on the pneumatic chuck (8), and the chuck (8) drives the jaws to clamp the clamping base (7). The clamping base (7) is positioned directly below the universal ball bearing (6) by moving the horizontal guide rail (10). The servo cylinder (4) is controlled by the PLC control system to move, so that the universal ball bearing (6) contacts the part housing 2 at the required rolling position, and gradually moves to increase the rolling force until the rolling requirements are met. The clamping base (7) is provided with a housing (1) and a bearing (2), and parts are assembled through the housing (1) and the bearing (2); The movement of the pneumatic chuck (8), servo electric cylinder (4), transverse guide rail (10) and electric rotary platform (3) is controlled by a PLC control system.

2. The device for rolling and closing a bearing according to claim 1, characterized in that, The main body of the clamping base (7) is a disc structure with a hollow interior. The outer ring has a radial groove (7-1) for placing the part screw. After hollowing out, the interior of the clamping base (7) has a two-stage stepped structure, including a central circular bottom surface (7-3) and an annular surface (7-4). The clamping base (7) has a mandrel (7-2) at its center, which is coaxial with the outer circle and has a clearance fit with the inner ring hole of the bearing (2). That is, the mandrel (7-2) is located in the middle of the central circular bottom surface (7-3). The diameter of the annular surface (7-4) is clearance-fitted with the shape of the part. The central circular bottom surface (7-3) is used to avoid the protruding part of the bearing (2), and the end face of the housing (1) can be tightly attached to the annular surface (7-4).

3. The device for fixing a bearing by rolling and closing according to claim 2, characterized in that, The thickness of the central circular bottom surface (7-3) is less than the thickness of the annular surface (7-4); the groove (7-1) is flush with the annular surface (7-4).

4. The device for fixing a bearing by rolling and closing according to claim 1, characterized in that, The parts are assembled by housing (1) and bearing (2) and then rolled with steel balls to seal the ends.

5. The device for fixing a bearing by rolling and closing according to claim 1, characterized in that, The pneumatic chuck (8) can move laterally under the drive of the transverse guide rail (10). The transverse movement axis is perpendicular to the axis of the servo cylinder (4), pressure sensor (5) and universal ball bearing (6). The axis of the pneumatic chuck (8) can be moved to coincide with the axis of the servo cylinder (4), pressure sensor (5) and universal ball bearing (6), or it can be moved to a distance position that meets the rolling requirements.

6. The device for fixing a bearing by rolling and closing according to claim 1, characterized in that, The pneumatic chuck (8) provides pure pressure through an air source, thereby providing power.

7. The device for fixing a bearing by rolling and closing according to claim 1, characterized in that, The axes of the telescopic rod, pressure sensor (5), and universal ball bearing (6) of the servo electric cylinder (4) are on the same axis.

8. The device for fixing a bearing by rolling and closing according to claim 1, characterized in that, The pneumatic chuck (8) and the electric rotary platform (3) are fixedly connected by bolts, and their axes are coaxial.

9. The device for fixing a bearing by rolling and closing according to claim 1, characterized in that, The horizontal fixed plate (9) is fixedly connected to the transverse guide rail (10) by a bolt electric rotating platform (3); the transverse guide rail (10) includes a motor and can move and lock itself.

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