A device for machining the spherical surface of a spherical bearing ball

Abstract

This utility model discloses a machining device for the spherical surface of a spherical bearing, including a lathe tool post and a tool holder mounted on top of the lathe tool post. It also includes an adjustment structure and a correction structure. The adjustment structure includes a motor support plate and a grinding wheel support. The motor support plate is inserted and fixed between the lathe tool post and the tool holder. The grinding wheel support is movably connected to the motor support plate and is connected to a cup-shaped grinding wheel. A protective cover, shaped like a cup, is provided on the outside of the cup-shaped grinding wheel and fixed to the grinding wheel support. The correction structure includes a dial indicator, a dial indicator holder, and a connecting rod. The connecting rod is threaded to the end of the shaft extending beyond the cup-shaped grinding wheel. The end of the connecting rod away from the shaft is fixed to the dial indicator holder, which mounts one or two dial indicators. The dial indicator heads face away from the cup-shaped grinding wheel. The protective cover reduces chip splashing and improves the safety of the device. By installing the correction structure at the center of the shaft, the dial indicator reading after slow rotation facilitates the measurement of the spherical roundness and ensures that the center of the grinding wheel is aligned with the center of the workpiece.

Description

Technical Field

[0001] This utility model relates to the field of spherical surface processing technology, and more specifically, to a processing device for the spherical surface of a spherical bearing. Background Technology

[0002] The difference between spherical radial bearings and ordinary radial bearings is that spherical bearings can withstand larger radial loads, have a tight fit with the bearing housing, and have very small clearances, providing extremely high support stability and making equipment operation more efficient. They are widely used in various high-precision, high-speed mechanical equipment, instruments, etc. However, the machining of spherical surfaces is more difficult than that of ordinary bearings. If a high-precision CNC grinding machine is purchased, its price ranges from several million to tens of millions of yuan, which is too expensive. Therefore, a spherical surface machining tool is required.

[0003] However, with current spherical machining tools, it is difficult to measure the roundness of the sphere, whether it is eccentric, and to determine the center of the grinding wheel after grinding. Moreover, high-temperature debris splashes during grinding, which can easily cause danger. Utility Model Content

[0004] In order to overcome the above-mentioned defects of the prior art, the present invention provides a processing device for the spherical surface of a spherical bearing, which aims to solve the problems mentioned in the background art.

[0005] This utility model provides the following technical solution: a machining device for the spherical surface of a spherical bearing, including a lathe tool post and a tool holder mounted on the top of the lathe tool post, and further including an adjustment structure and a correction structure. The adjustment structure includes a motor support plate and a grinding wheel support. The motor support plate is inserted and fixed between the lathe tool post and the tool holder. The grinding wheel support is movably connected to the motor support plate. A variable speed motor is fixed on the top of the motor support plate. A rotating shaft is rotatably connected to the top of the grinding wheel support. The output end of the variable speed motor drives the rotating shaft to rotate via a belt. A cup-shaped grinding wheel is fixed at one end of the rotating shaft. A protective cover is provided on the outside of the cup-shaped grinding wheel. The protective cover is cup-shaped and fixed to the grinding wheel support.

[0006] The calibration structure includes a dial indicator, a holder, and a connecting rod. The connecting rod is threaded to one end of the rotating shaft that extends out of the bowl-shaped grinding wheel. The holder is fixed to the end of the connecting rod away from the connecting rod. One or two dial indicators are mounted on the holder, with the dial indicator heads facing away from the bowl-shaped grinding wheel.

[0007] As a further preferred embodiment of this utility model, the adjustment structure includes a bottom upright plate, a transverse screw hole, a longitudinal screw hole, a vertical slide groove, a support plate, a longitudinal set screw, and a transverse set screw. The bottom upright plate is fixed to the lower part of the motor support plate, and a support plate is provided on one side of the grinding wheel support. The support plate faces the bottom upright plate. The longitudinal screw hole is opened vertically in the motor support plate and is located above the support plate. The longitudinal set screw is threaded to the longitudinal screw hole. The transverse screw hole is horizontally arranged in the support plate. The vertical slide groove is opened at the bottom of the upright plate. The transverse screw hole is opened at the lower part of the support plate. The transverse set screw is threaded to the transverse screw hole and slidably connected to the vertical slide groove. After the transverse set screw is locked, its tap head abuts against the upright plate at the vertical slide groove. The adjustment structure allows the grinding wheel support to be adjusted up, down, left, and right, thereby facilitating alignment.

[0008] As a further preferred embodiment of this utility model, the bottom upright plate is provided with a plurality of vertical sliding holes, and the support upright plate is provided with a plurality of limiting screw holes. The limiting screw holes are threadedly connected to limiting bolts. The limiting bolts are slidably connected to the vertical sliding holes in the vertical direction. The screw head of the limiting bolt abuts against one side of the bottom upright plate. The friction is increased by the abutting between the screw head of the limiting bolt and the bottom upright plate, thereby improving the stability of the connection.

[0009] As a further preferred embodiment of this utility model, the top of the motor support plate is provided with multiple tensioning grooves, and tensioning bolts are installed in the tensioning grooves. The tensioning grooves include an upper stud groove and a lower screw head groove. The variable speed motor is slidably connected to the tensioning grooves, and the bottom of the variable speed motor is threadedly connected to the tensioning bolts. The variable speed motor is fixed by tightening the tensioning bolts, and the speed is adjusted by setting the tensioning grooves.

[0010] As a further preferred embodiment of this utility model, the dial indicator frame is slidably connected to a sliding sleeve, the sliding sleeve is positioned at the dial indicator frame by screws, and the sliding sleeve is fixed with a dial indicator, which facilitates the measurement of roundness at multiple positions.

[0011] As a further preferred embodiment of this invention, the bowl-shaped grinding wheel is made of white corundum and is used for grinding spherical surfaces.

[0012] The technical effects and advantages of this utility model are as follows:

[0013] 1. By setting up a protective cover, debris splashes are reduced, thus improving the safety of the device.

[0014] 2. By installing a correction structure at the center of the rotating shaft, the dial indicator reading can be easily obtained by slowly rotating the shaft, making it convenient to measure the roundness of the sphere.

[0015] 3. By setting an adjustment structure, the grinding wheel can be easily adjusted, and the center of the grinding wheel can be aligned with the center of the workpiece by referring to the dial indicator reading. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in this disclosure, the accompanying drawings used in some embodiments of this disclosure will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this disclosure. For those skilled in the art, other drawings can be obtained based on these drawings.

[0017] Figure 1 This is a schematic diagram of the structure of the processing device for the spherical surface of the ball bearing of this utility model.

[0018] Figure 2 This is a top view of the processing device for the spherical surface of the ball bearing of this utility model.

[0019] Figure 3 This is a schematic diagram of the correction structure in the spherical bearing surface processing device of this utility model.

[0020] Figure 4 This is a perspective view of the motor support plate in the spherical bearing spherical surface processing device of this utility model.

[0021] Figure 5 This is a perspective view of the grinding wheel support in the spherical bearing surface machining device of this utility model.

[0022] Figure 6 This is a perspective view of the motor support plate and grinding wheel support in the spherical bearing spherical surface processing device of this utility model.

[0023] Figure 7 for Figure 1 Enlarged view of point A.

[0024] The attached diagram is labeled as follows: 1. Tool post; 2. Motor support plate; 3. Lathe tool holder; 4. Variable speed motor; 5. Protective cover; 6. Bowl-shaped grinding wheel; 7. Rotary shaft; 8. Belt; 9. Longitudinal set screw; 10. Limit bolt; 11. Grinding wheel support; 12. Transverse set screw; 13. Dial indicator; 14. Sliding sleeve; 15. Indicator head; 16. Spherical surface; 17. Connecting rod; 18. Indicator holder; 201. Bottom upright plate; 202. Vertical slide groove; 203. Vertical slide hole; 204. Tightening slide groove; 205. Longitudinal screw hole; 1101. Transverse screw hole; 1102. Limit screw hole; 1103. Support upright plate. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] See Figure 1-7 As shown, a machining device for the spherical surface 16 of a spherical bearing includes a lathe tool post 3 and a tool holder 1 mounted on top of the lathe tool post 3. It also includes an adjustment structure and a correction structure. The adjustment structure includes a motor support plate 2 and a grinding wheel support 11. The motor support plate 2 is inserted and fixed between the lathe tool post 3 and the tool holder 1. The grinding wheel support 11 is movably connected to the motor support plate 2. A variable speed motor 4 is fixed to the top of the motor support plate 2. A rotating shaft 7 is rotatably connected to the top of the grinding wheel support 11. The output end of the variable speed motor 4 drives the rotating shaft 7 to rotate via a belt 8. One end of the rotating shaft 7... A cup-shaped grinding wheel 6, made of white corundum, is fixedly mounted and used for grinding the spherical surface 16 of a bearing. A protective cover 5, also cup-shaped, is provided on the outer side of the cup-shaped grinding wheel 6 and fixed to the grinding wheel support 11. The calibration structure includes a dial indicator 13, a holder 18, and a connecting rod 17. The connecting rod 17 is threaded to one end of the rotating shaft 7 extending from the cup-shaped grinding wheel 6. A holder 18 is fixed to the end of the connecting rod 17 furthest from the wheel. One or two dial indicators 13 are mounted on the holder 18, with the dial indicator heads 15 facing away from the cup-shaped grinding wheel 6. A sliding sleeve 14 is slidably connected to the holder 18. The sliding sleeve 14 is positioned at the holder 18 by screws and holds the dial indicator 13, facilitating the measurement of roundness at multiple locations.

[0027] In the operation of this utility model embodiment, the cup-shaped grinding wheel 6 is driven by the variable speed motor 4 to perform cutting.

[0028] Furthermore, by installing the calibration structure, the variable speed motor 4 slowly drives the cup-shaped grinding wheel 6 to rotate, and the dial indicator 15 in the calibration structure abuts against the spherical surface 16 of the bearing to be machined. By observing the change in the reading, the roundness and whether it is aligned are determined.

[0029] Furthermore, by adjusting the position of the sliding sleeve 14, the position of the dial indicator 13 can be adjusted, making it easier to determine whether there is eccentricity through readings and improving the accuracy of roundness measurement.

[0030] like Figure 1 and Figure 4-7As shown in this embodiment of the utility model, the adjustment structure includes a bottom plate 201, a transverse screw hole 1101, a longitudinal screw hole 205, a vertical slide groove 202, a support plate 1103, a longitudinal set screw 9, and a transverse set screw 12. The bottom plate 201 is fixed to the lower part of the motor support plate 2. The support plate 1103 is provided on one side of the grinding wheel support 11. The support plate 1103 faces the bottom plate 201. The longitudinal screw hole 205 is opened vertically in the motor support plate 2, and the longitudinal screw hole 205 is located above the support plate 1103. The longitudinal set screw 9 is threaded to the longitudinal screw hole 205; the transverse screw hole 1101 is horizontally set on the support plate 1103; the vertical slide groove 202 is opened at the bottom of the plate; the transverse screw hole 1101 is opened at the lower part of the support plate 1103; the transverse set screw 12 is threaded to the transverse screw hole 1101 and slidably connected to the vertical slide groove 202; and after the transverse set screw 12 is locked, its tap head abuts against the plate at the vertical slide groove 202. The setting of the adjustment structure allows the grinding wheel support 11 to be adjusted up, down, left, and right, thereby facilitating centering.

[0031] During the operation of this utility model embodiment, the longitudinal top screw 9 is rotated to abut against the support plate 1103 to move it downward, the transverse top screw 12 is loosened, the support plate 1103 is manually adjusted to move upward, and then the transverse top screw 12 is tightened for reinforcement; when transverse adjustment is required, the transverse top screw 12 is rotated for adjustment, and the longitudinal top screw 9 is used for friction limit.

[0032] like Figure 1 , Figure 4 and Figure 7 As shown in this embodiment of the utility model, the bottom upright plate 201 has a plurality of vertical sliding holes 203, and the support upright plate 1103 has a plurality of limiting screw holes 1102. The limiting screw holes 1102 are threadedly connected to limiting bolts 10. The limiting bolts 10 are slidably connected to the vertical sliding holes 203 in the vertical direction. The screw head of the limiting bolt 10 abuts against one side of the bottom upright plate 201. The friction is increased by the abutting between the screw head of the limiting bolt 10 and the bottom upright plate 201, thereby improving the stability of the connection.

[0033] During the operation of this utility model embodiment, after loosening the limiting bolt 10, the distance between the motor support plate 2 and the grinding wheel support 11 is adjusted by the transverse set screw 12. After determining the distance, the limiting bolt 10 is tightened, and the screw head of the limiting bolt 10 abuts and rubs against the bottom upright plate 201 to reinforce it.

[0034] like Figure 2 and Figure 4As shown in this embodiment of the utility model, the top of the motor support plate 2 is provided with a plurality of tensioning grooves 204, and tensioning bolts are installed in the tensioning grooves 204. The tensioning grooves 204 include an upper stud groove and a lower screw head groove. The variable speed motor 4 is slidably connected to the tensioning grooves 204, and the bottom of the variable speed motor 4 is threadedly connected to the tensioning bolts. The variable speed motor 4 is fixed by tightening the tensioning bolts, and the speed is adjusted by setting the tensioning grooves 204.

[0035] During the operation of this utility model embodiment, the position of the variable speed motor 4 is fixed and adjusted by contacting the tightening bolt to keep the belt 8 taut after the position of the cup-shaped grinding wheel 6 is adjusted, thus ensuring the transmission effect.

[0036] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A machining apparatus for the spherical surface of a spherical bearing, comprising a lathe tool post and a tool holder mounted on top of the lathe tool post, characterized in that: It also includes an adjustment structure and a correction structure. The adjustment structure includes a motor support plate and a grinding wheel support. The motor support plate is inserted and fixed between the lathe tool post and the tool holder. The grinding wheel support is movably connected to the motor support plate. A variable speed motor is fixed to the top of the motor support plate. A rotating shaft is rotatably connected to the top of the grinding wheel support. The output end of the variable speed motor drives the rotating shaft to rotate via a belt. A cup-shaped grinding wheel is fixed to one end of the rotating shaft. A protective cover is provided on the outside of the cup-shaped grinding wheel. The protective cover is cup-shaped and fixed to the grinding wheel support. The calibration structure includes a dial indicator, a holder, and a connecting rod. The connecting rod is threaded to one end of the rotating shaft that extends out of the bowl-shaped grinding wheel. The holder is fixed to the end of the connecting rod away from the connecting rod. One or two dial indicators are mounted on the holder, with the dial indicator heads facing away from the bowl-shaped grinding wheel.

2. The processing device for the spherical surface of a spherical bearing according to claim 1, characterized in that: The adjustment structure includes a bottom plate, a horizontal screw hole, a vertical screw hole, a vertical groove, a support plate, a vertical set screw, and a horizontal set screw. The bottom plate is fixed to the lower part of the motor support plate, and a support plate is provided on one side of the grinding wheel support. The support plate faces the bottom plate. The vertical screw hole is opened vertically in the motor support plate and is located above the support plate. The vertical set screw is threaded to the vertical screw hole. The horizontal screw hole is horizontally set in the support plate. The vertical groove is opened at the bottom of the plate. The horizontal screw hole is opened at the lower part of the support plate. The horizontal set screw is threaded to the horizontal screw hole and slidably connected to the vertical groove. After the horizontal set screw is locked, its tap head abuts against the plate at the vertical groove.

3. The processing device for the spherical surface of a spherical bearing according to claim 2, characterized in that: The bottom upright plate has multiple vertical sliding holes, and the support upright plate has multiple limiting screw holes. The limiting screw holes are threaded with limiting bolts, and the limiting bolts are slidably connected to the vertical sliding holes in the vertical direction. The screw head of the limiting bolt abuts against one side of the bottom upright plate.

4. The processing device for the spherical surface of a spherical bearing according to claim 1, characterized in that: The top of the motor support plate is provided with multiple tensioning grooves, and tensioning bolts are installed in the tensioning grooves. The tensioning grooves include an upper stud groove and a lower screw head groove. The variable speed motor is slidably connected to the tensioning grooves, and the bottom of the variable speed motor is threadedly connected to the tensioning bolts. The variable speed motor is fixed by tightening the tensioning bolts.

5. The processing device for the spherical surface of a spherical bearing according to claim 1, characterized in that: The dial indicator is slidably connected to a sliding sleeve, which is positioned at the dial indicator by screws, and a dial indicator is fixed to the sliding sleeve.

6. The processing device for the spherical surface of a spherical bearing according to claim 1, characterized in that: The bowl-shaped grinding wheel is made of white corundum.

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