Auxiliary clamping device for marking semicircular raceway of thrust ball bearing

Abstract

An auxiliary clamping device for marking a semicircular raceway of a thrust ball bearing relates to an auxiliary clamping device for marking a bearing, and is characterized in that a planetary reducer (6) of the device is additionally mounted on a shaft of a motor (7), the motor (7) is fastened together with a shaft on a bearing arrangement platform (29) through a coupler (23), and the planetary reducer (6) and the motor (7) are arranged on a support frame (10); a motor (7) rotates to drive a planetary reducer (6) to rotate, the planetary reducer (6) drives a bearing upper platform (29) to rotate, so that the bearing upper platform (29) adjusts the vertical deflection angle of the bearing arrangement platform, and laser is perpendicular to the position of a pit of an inner raceway of a bearing outer ring when the pit of the inner raceway of the thrust ball bearing outer ring is marked; according to the device, accurate laser marking is carried out on the surface of the semi-arc raceway of the bearing, and therefore the experiment and production requirements are met. The device expands the application range of laser marking products.

Description

Technical Field

[0001] The present invention relates to an auxiliary clamping device for bearing marking, and particularly to an auxiliary clamping device for marking the semi-circular raceway of a thrust ball bearing. Background Art

[0002] Laser marking is a common means for laser surface texturing processing.

[0003] Modern laser marking devices can only meet the requirements of laser marking on flat or cylindrical surfaces. For thrust ball bearings, since there is no way to keep the laser always perpendicular or approximately perpendicular to the raceway surface during the marking process, there has been no report on large-area laser marking of the semi-circular raceway of thrust ball bearings and research on their friction and wear behaviors. Summary of the Invention

[0004] The purpose of the present invention is to provide an auxiliary clamping device for marking the semi-circular raceway of a thrust ball bearing. The device of the present invention performs precise laser marking on the semi-circular raceway surface of the bearing, thereby meeting specific experimental and production requirements. This device expands the application range of laser marking products.

[0005] The purpose of the present invention is achieved through the following technical solutions: An auxiliary clamping device for marking the semi-circular raceway of a thrust ball bearing, the device includes a bearing setting platform up and down deflection device and a bearing rotation device; the bearing setting platform up and down deflection device includes a planetary reducer, a motor, and a coupling; wherein the planetary reducer is installed on the motor shaft, the motor is fastened to the shaft on the bearing setting platform through the coupling, and the planetary reducer and the motor are arranged on the support frame; the motor rotates to drive the planetary reducer to rotate, and the planetary reducer drives the bearing upper platform to rotate, so as to adjust the up and down deflection angle of the bearing setting platform, and make the laser perpendicular to the concave position of the outer ring inner raceway of the thrust ball bearing when marking at the concave pit of the outer ring inner raceway of the thrust ball bearing; the motor is fixed to a worm through the coupling, the worm meshes with a worm gear, the worm gear is connected to the bearing rotation shaft through a flat key, a washer is arranged between the worm gear and the bearing setting platform, and the worm gear is in contact with the bearing setting platform to make the worm gear rotate quickly. The bearing rotation shaft and the bearing setting base are fixed together through fastening screws, the bearing rotation shaft is fixed on the bearing setting platform through bearings, the worm is fixed in the worm gear protection sleeve through bearings, and the worm gear protection sleeve is connected to the planetary reducer through the coupling to play a role in adjusting the up and down deflection angle of the bearing setting platform; when the motor rotates, it drives the worm to rotate, and further the worm gear rotates to drive the bearing rotation shaft to rotate, so that the bearing setting base rotates; input parameters on the computer interface, and the motor device executes. The motor makes the bearing setting base rotate through the above steps; the platform support frame supports the bearing setting platform, and the deflection angle sensor measures the included angle between the bearing setting platform and the horizontal position to complete the up and down deflection of the bearing setting platform, that is, the planetary reducer and the motor rotate to the correct position.

[0006] An auxiliary clamping device for marking the semi-circular raceway of a thrust ball bearing. The bearing rotating device includes a motor, a bearing setting base, a bearing rotating shaft, a worm gear, a worm, and a bearing setting platform.

[0007] An auxiliary clamping device for marking the semi-circular raceway of a thrust ball bearing. The screw holes fix the motor on the bearing setting platform.

[0008] An auxiliary clamping device for marking the semi-circular raceway of a thrust ball bearing. The bolts fix the platform support frame on the seat body device.

[0009] An auxiliary clamping device for marking the semi-circular raceway of a thrust ball bearing. The threaded holes fix the seat body device.

[0010] The advantages and effects of the present invention are as follows: 1. In the device of the present invention, the rotation center of the clamping device is exactly located at or close to the center of the cross-section of the semi-circular raceway of the bearing. Then, by swinging the clamping device, the angle of the shaft ring or seat ring of the thrust ball bearing relative to the horizontal plane is changed to ensure that the laser is always perpendicular or approximately perpendicular to the surface of the raceway to be marked during the marking process, thus ensuring the efficiency and effect of the marking process.

[0011] 2. The shaft ring or seat ring of the thrust ball bearing of the present invention is driven by a servo motor to achieve indexing movement of the shaft ring or seat ring relative to its central axis. The combination of the swinging movement of the clamping device and the indexing movement of the shaft ring / seat ring can realize large-area laser marking of the entire semi-circular raceway, providing the possibility for studying the friction and vibration characteristics of thrust ball bearings with surface textures. Brief Description of the Drawings

[0012] Figure 1 It is a system diagram of a laser marking fixture for the outer ring inner raceway of a thrust ball bearing of the present invention; Figure 2 It is a structural diagram of a laser marking fixture for the outer ring inner raceway of a thrust ball bearing of the present invention; Figure 3 It is an enlarged structural diagram and sectional view of the bearing rotating device of the present invention; Figure 4 It is a computer control interface diagram of the present invention; Figure 5 It is a control flow chart of the present invention.

[0013] Components in the figure: marking machine 1, servo control interface 2, PC industrial control computer 3, computer interface 4, bearing rotation device 5, planetary reducer 6, motor 7, threaded hole 8, bolt 9, support frame 10, threaded hole 11, seat body device 12, power cord 13, motor 14, platform support frame 15, laser marking machine 16, deflection angle sensor 17, worm and worm gear protective sleeve 18, bearing setting base 19, bearing rotation shaft 20, coupling 21, bearing 22, coupling 23, washer 24, bearing 25, worm gear 26, flat key 27, worm 28, bearing setting platform 29. Specific implementation mode

[0014] The present invention will be described in detail below in conjunction with the embodiments shown in the accompanying drawings.

[0015] As shown in the figure, the core components of the laser marking device for the outer raceway of the thrust ball bearing of the present invention include the up and down deflection device (planetary reducer 6, motor 7) of the bearing setting platform and the bearing rotation device 5.

[0016] The up and down deflection device of the bearing setting platform mainly includes a planetary reducer 6, a motor 7, and a coupling 23. Among them, the planetary reducer 6 is installed on the shaft of the motor 7 to increase the torque of the motor 7. The motor 7 is fastened to the shaft on the bearing setting platform 29 through the coupling 23. The support frame 10 is used to set and fix the planetary reducer 6 and the motor 7. When the motor 7 rotates, it drives the planetary reducer 6 to rotate, and the planetary reducer 6 drives the bearing setting platform 29 to rotate, so as to play a role in adjusting the up and down deflection angle of the bearing setting platform, so that when the laser marks the concave pit on the inner raceway of the thrust ball bearing outer ring, the laser can be perpendicular to each position of the concave pit on the inner raceway of the bearing outer ring.

[0017] The bearing rotation device 5 mainly includes a motor 14, a bearing setting base 19, a bearing rotation shaft 20, a worm gear 26, a worm 28, and a bearing setting platform 29. The motor 14 is fixed together with the worm 28 through the coupling 21. The worm 28 meshes with the worm gear 26. The worm gear 26 is connected to the bearing rotation shaft 20 through the flat key 27. A washer 24 is provided between the worm gear 26 and the bearing setting platform 29 to make the worm gear contact the bearing setting platform, so that the worm gear can rotate quickly. The bearing rotation shaft 20 is fixed to the bearing setting base 19 through fastening screws. The bearing rotation shaft 20 is fixed to the bearing setting platform 29 through the bearing 22. The worm 28 is fixed in the worm and worm gear protective sleeve 18 through the bearing 25. The worm and worm gear protective sleeve 18 is connected to the planetary reducer 6 through the coupling 23 to play a role in adjusting the up and down deflection angle of the bearing setting platform 29. When the motor 14 rotates, it drives the worm 28 to rotate, and further the worm gear 26 rotates to drive the bearing rotation shaft 20 to rotate, and finally the bearing setting base 19 rotates. Input parameters in the computer interface, and the motor device executes. The motor passes through the above steps, and finally the bearing setting base 19 rotates.

[0018] The screw hole 11 is used to fix the motor 14 on the bearing setting platform 29. The platform support frame 15 is used to support the bearing setting platform 29. The bolt 9 is used to fix the platform support frame 15 on the seat body device 12. The threaded hole 8 is used to fix the seat body device 12. The deflection angle sensor 17 is used to measure the angle between the bearing setting platform 29 and the horizontal position, so that the up and down deflection device (planetary reducer 6, motor 7) of the bearing setting platform can rotate to the correct position.

[0019] During operation, first place the shaft ring or seat ring of the thrust ball bearing on the fixture, turn on the device power supply, and the system automatically returns to the horizontal and initial positions; open the Figure 4 computer interface diagram as shown, and input the number of marking lines, the number of pits per line, and the number of repeated markings (where the number of marking lines is the total number of markings along the radius of the circumference of the shaft ring or seat ring, and the number of repeated markings is the number of times of repeated marking in the same column to increase the depth of the texture). The marking process uses the method of single-line repeated marking, that is, marking the set number of repetitions one by one. During the marking process of each pit, it can use the maximum number of direct markings for a single pit or repeated markings one by one.

[0020] After the parameters are input, click "Marking", and the laser marking officially starts. For the marking of a single pit, the servo motor (motor 7) first directly drives the clamping device to swing to the maximum designed angle along the rotation center (which needs to be calibrated before the first use), and then according to the number of pits per line, precise position control is carried out to ensure that the raceway surface is perpendicular to the laser beam when processing each pit. After all the pits of the current line are marked (including the number of repetitions), the servo motor (motor 7) drives the clamping device to swing to the horizontal state (the state is detected by a wire rope or a magnetostrictive sensor).

[0021] Next, use another servo motor (motor 14) to rotate the bearing shaft ring or seat ring around its central axis by a specific angle (equal to 360° / number of marking lines) according to the set number of marking lines, and then perform the marking of the second line according to the aforementioned single-pit marking method, and repeat in turn until the marking of the last pit is completed.

[0022] During the marking process, the current number of marking lines and the current number of repetitions and other situations will also be Figure 4 displayed on the interface. After all the pits are marked, the clamping device swings to the horizontal state along the rotation center. Turn off the device power supply, remove the bearing shaft ring or seat ring, and clean the fixture.

Claims

1. An auxiliary clamping device for marking the semicircular arc raceway of a thrust ball bearing, characterized in that: The device comprises a bearing setting platform up-down deflection device and a bearing rotating device (5); the bearing setting platform up-down deflection device comprises a planetary reducer (6), a motor (7), and a coupling (23); wherein the planetary reducer (6) is mounted on the shaft of the motor (7); the motor (7) is fastened to the shaft on the bearing setting platform (29) through the coupling (23); the planetary reducer (6) and the motor (7) are mounted on the support frame (10); the motor (7) rotates to drive the planetary reducer (6) to rotate, and the planetary reducer (6) drives the The upper platform (29) of the movable bearing is rotated to adjust the up and down deflection angle of the bearing setting platform, and the laser is perpendicular to the position of the inner raceway pit of the outer ring of the thrust ball bearing when marking the inner raceway pit of the outer ring of the thrust ball bearing; the motor (14) is fixed together with the worm (28) through a coupling (21), the worm (28) and the worm wheel (26) are meshed, the worm wheel (26) is connected to the bearing rotating shaft (20) through a flat key (27), a washer (24) is provided between the worm wheel (26) and the bearing setting platform (29), and the worm wheel and the bearing are provided. The platform is set to contact, so that the worm wheel rotates quickly. The bearing rotating shaft (20) and the bearing setting base (19) are fixed together by fastening screws. The bearing rotating shaft (20) is fixed on the bearing setting platform (29) through the bearing (22). The worm (28) is fixed in the worm gear protective sleeve (18) through the bearing (25). The worm gear protective sleeve (18) is connected to the planetary reducer (6) through the coupling (23) to adjust the up and down deflection angle of the bearing setting platform (29). When the motor (14) rotates, it drives the worm gear to rotate. The rod (28) rotates, and the worm gear (26) further rotates to drive the bearing rotating shaft (20) to rotate, so that the bearing setting base (19) rotates; the parameters are input into the computer interface, and the motor device is executed, and the motor rotates the bearing setting base (19) through the above steps; the platform support frame (15) supports the bearing setting platform (29), and the deflection angle sensor (17) measures the angle between the bearing setting platform (29) and the horizontal position, so that the bearing setting platform is deflected up and down, that is, the planetary reducer (6) and the motor (7) are rotated to the correct position.

2. The auxiliary clamping device for marking the semicircular arc raceway of a thrust ball bearing according to claim 1, characterized in that: The bearing rotating device (5) comprises a motor (14), a bearing setting base (19), a bearing rotating shaft (20), a worm wheel (26), a worm (28), and a bearing setting platform (29).

3. The auxiliary clamping device for marking the semicircular arc raceway of a thrust ball bearing according to claim 1, characterized in that: The screw hole (11) fixes the motor (14) on the bearing setting platform (29).

4. The auxiliary clamping device for marking the semicircular arc raceway of a thrust ball bearing according to claim 1, characterized in that: The bolts (9) fix the platform support frame (15) on the seat device (12).

5. The auxiliary clamping device for marking the semicircular arc raceway of a thrust ball bearing according to claim 1, characterized in that: The threaded hole (8) is provided with a bolt fixing seat body device (12).

Images