A ball screw grinder

Abstract

The utility model relates to a ball head screw grinder, it includes base, support frame, first motor, second motor, speed reducer, flywheel, connecting rod, ball head screw, worm and worm wheel mechanism, fixed base and grinding ball bowl, first motor, support frame, worm and worm wheel mechanism are established in the top surface of base, second motor drives the rotation of speed reducer, and the ball head of ball head screw and grinding bowl type groove grind each other. The utility model through the horizontal rotation of grinding ball bowl and the back and forth reciprocating swing of ball head screw, simulate the ball head of ball head screw and with grinding ball bowl in the operation mode of running, carry out grinding to ball head, grinding ball bowl simultaneously, like this not only has promoted the grinding efficiency, and make the transmission pair contact surface that mutually spliced with synchronous grinding ball head, ball bowl formed has better cooperation degree, is favorable for promoting the grinding quality. The utility model has enlarged the grinding area between ball head and ball bowl, has improved the grinding precision, efficiency and service life of ball head assembly greatly.

Description

Technical Field

[0001] This utility model relates to the technical field of ball screws, and in particular to a ball screw grinding machine. Background Technology

[0002] The ball joint and ball cup are collectively called the ball joint assembly, a crucial force-transmitting component of a crank press. The ball joint assembly connects to the connecting rod at the top and the slide block at the bottom. The power from the crankshaft of the crank press is transmitted to the slide block via the connecting rod and ball joint assembly, completing the stamping of sheet metal or the forging of heated blanks. The upper end of the ball joint is threaded to the lower end of the connecting rod, and the lower end of the ball joint extends into the slide block, with the ball head at the lower end of the ball joint supported in the ball cup fixed within the slide block. The ball head and ball cup are tightly fitted together with spherical surfaces, and the contact area between them must reach at least 70% to ensure uniform force distribution between the ball head and ball cup at the lower end of the ball joint during crank press operation. This prevents premature damage to the ball head and ball cup due to prolonged operation under uneven force conditions. Existing ball joint assembly grinding machines only rotate the ball joint, resulting in a contact area of ​​only 70% after grinding, which affects the service life of the ball joint assembly. Utility Model Content

[0003] The purpose of this invention is to provide a ball head screw grinding machine with a large percentage of contact area between the ball head and the ball bowl, uniform force distribution, and long service life.

[0004] The purpose of this utility model is achieved as follows:

[0005] A ball-end screw grinding machine includes a base, a support frame, a first motor, a second motor, a reducer, a flywheel, a connecting rod, a ball-end screw, a worm gear mechanism, a fixed seat, and a grinding ball bowl. The first motor, support frame, and worm gear mechanism are located on the top surface of the base. The fixed seat is horizontally rotatable on the top surface of the base. The grinding ball bowl is located on the fixed seat, and its top has a grinding bowl-shaped groove. A vertically arranged drive shaft is located at the bottom of the fixed seat. The worm gear mechanism's worm wheel is fixedly connected to the lower end of the drive shaft. The second motor and reducer are located on the support frame. The reducer's output... The rotating shaft is horizontally positioned. One end of the output shaft of the reducer is fixedly connected to the center of the flywheel. One end of the connecting rod is rotatably connected to the end face of the flywheel, and the other end of the connecting rod is rotatably connected to the upper end of the ball-end screw. The ball head of the ball-end screw is positioned within the grinding bowl groove. A second motor drives the reducer to rotate, which in turn drives the flywheel to rotate. The flywheel drives the connecting rod to reciprocate forward and backward, causing the upper end of the ball-end screw to swing back and forth. A first motor drives the worm gear to rotate, which in turn drives the fixed base and the grinding bowl on it to rotate horizontally. The ball head of the ball-end screw grinds against the grinding bowl groove. This invention simulates the operation of the ball head of the ball-end screw and the grinding bowl during operation by using the horizontal rotation of the grinding bowl and the reciprocating swing of the ball-end screw. This allows for simultaneous grinding of the ball head and the grinding bowl, which not only improves grinding efficiency but also ensures better fit of the transmission pair formed by the ball head and the grinding bowl, which are spliced ​​together for synchronous grinding, thus improving grinding quality. This invention expands the grinding area between the ball head and the ball cup, thereby increasing the contact area between the two after grinding and color inspection to over 85%, which greatly improves the grinding accuracy, efficiency and service life of the ball head assembly.

[0006] The present invention can be further improved in the following ways.

[0007] The worm gear mechanism is located inside the base.

[0008] A belt drive mechanism is provided between the first motor and the worm gear mechanism. The belt drive mechanism includes a first pulley, a second pulley, and a belt. The first pulley is located on the motor shaft of the first motor, and the second pulley is located on the worm of the worm gear mechanism. The belt connects the first pulley and the second pulley.

[0009] The worm of the worm gear mechanism extends horizontally to the side of the base, and the second pulley is mounted on the worm of the worm gear mechanism.

[0010] The lower end of the drive shaft extends vertically downward into the base and is fixedly connected to the center of the worm gear.

[0011] The top of the mounting base is detachably equipped with multiple locking blocks. These locking blocks press the grinding ball cup onto the mounting base, making it easy to replace grinding ball cups of different diameters.

[0012] The beneficial effects of this utility model are as follows:

[0013] This invention simulates the operation of the ball head and grinding bowl during grinding by simultaneously grinding the ball head and grinding bowl through the horizontal rotation of the grinding bowl and the reciprocating rocking of the ball head screw. This not only improves grinding efficiency but also ensures better fit between the contact surfaces of the transmission pair formed by the ball head and bowl, which are joined together for synchronous grinding, thus enhancing grinding quality. This invention expands the grinding area between the ball head and bowl, resulting in a contact area exceeding 85% after grinding and color inspection. This ensures uniform force distribution on both, significantly improving the grinding precision, efficiency, and service life of the ball head assembly. Attached Figure Description

[0014] Figure 1 This is a structural schematic diagram of the ball head screw grinding machine of this utility model.

[0015] Figure 2 This is a structural schematic diagram of the ball head screw grinding machine of this utility model from another angle.

[0016] Figure 3 This is a structural schematic diagram of the ball head screw grinding machine of this utility model from the third angle.

[0017] Figure 4 This is a top view of the ball head screw grinding machine of this utility model.

[0018] Figure 5 This is a side view of the ball head screw grinding machine of this utility model.

[0019] Figure 6 This is an exploded view of the ball head screw grinding machine of this utility model. Detailed Implementation

[0020] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0021] Example 1, as Figures 1 to 6As shown, a ball-end screw grinding machine includes a base 1, a support frame 9, a first motor 6, a second motor 2, a reducer 3, a flywheel 71, a connecting rod 72, a ball-end screw 4, a worm gear mechanism 11, a fixed seat 52, and a grinding ball bowl 51. The first motor 6, the support frame 9, and the worm gear mechanism 11 are located on the top surface of the base 1. The fixed seat 52 is horizontally rotatably mounted on the top surface of the base 1. The grinding ball bowl 51 is mounted on the fixed seat 52. The top of the grinding ball bowl 51 has a grinding bowl-shaped groove 54. The bottom of the fixed seat 52 has a vertically arranged transmission shaft 12. The worm gear 13 of the worm gear mechanism 11 is fixedly connected to the lower end of the transmission shaft 12. The second motor 2 and the reducer 3 are located on the support frame 9. The output shaft of the reducer 3 is horizontally positioned, with one end fixedly connected to the center of the flywheel 71. One end of the connecting rod 72 is rotatably connected to the end face of the flywheel 71, and the other end is rotatably connected to the upper end of the ball screw 4. The ball head of the ball screw 4 is positioned within the grinding bowl groove 54. The second motor 2 drives the reducer 3 to rotate, which in turn drives the flywheel 71 to rotate. The flywheel 71 drives the connecting rod 72 to reciprocate forward and backward, causing the upper end of the ball screw 4 to swing back and forth. The first motor 6 drives the worm gear 10 to rotate, and the rotation of the worm gear causes the fixed seat 52 and the grinding bowl 51 on it to rotate horizontally. The ball screw 4 and the grinding bowl groove 54 grind each other. This causes the bowl-shaped surface of the grinding bowl groove to continuously rub against the outer surface of the ball head of the ball screw 4 until the two surfaces are rubbing together.

[0022] This is a more specific technical solution of the present invention.

[0023] The worm gear mechanism 11 is located inside the base 1.

[0024] A belt drive mechanism 8 is provided between the first motor 6 and the worm gear mechanism 11. The belt drive mechanism 8 includes a first pulley 81, a second pulley 82 and a belt 83. The first pulley 81 is located on the motor shaft of the first motor 6, the second pulley 82 is located on the worm 10 of the worm gear mechanism 11, and the belt 83 connects the first pulley 81 and the second pulley 82.

[0025] The worm 10 of the worm gear mechanism 11 extends horizontally out of the side of the base 1, and the second pulley 82 is mounted on the worm 10 of the worm gear mechanism 11.

[0026] The lower end of the drive shaft 12 extends vertically downward into the base 1 and is fixedly connected to the center of the worm gear.

[0027] The top of the fixed base 52 is detachably provided with multiple locking blocks 53, which press the grinding ball cup 51 onto the fixed base 52.

[0028] During the grinding of the ball head assembly, the ball head cap is fitted onto the ball head at the lower end of the ball head rod, the ball cup is fixed inside the grinding ball cup, and the upper cap presses down on the ball head cap and is fixedly connected to the upper side of the grinding ball cup; the lower end of the ball head assembly is supported inside the grinding ball cup by the ball cup. The grinding of the ball head assembly completely simulates the actual working condition of the connecting rod swing, greatly improving the grinding accuracy and increasing the contact area of ​​the ball head cap, ball head, and ball cup to over 85%.

Claims

1. A ball-head screw grinding machine, characterized in that, The system includes a base (1), a support frame (9), a first motor (6), a second motor (2), a reducer (3), a flywheel (71), a connecting rod (72), a ball screw (4), a worm gear mechanism (11), a fixed seat (52), and a grinding ball bowl (51). The first motor (6), the support frame (9), and the worm gear mechanism (11) are located on the top surface of the base (1). The fixed seat (52) is horizontally rotatably located on the top surface of the base (1). The grinding ball bowl (51) is located on the fixed seat (52). The top of the grinding ball bowl (51) is provided with a grinding bowl-shaped groove (54). The bottom of the fixed seat (52) is provided with a vertically arranged transmission shaft (12). The worm wheel (13) of the worm gear mechanism (11) is fixedly connected to the lower end of the transmission shaft (12). The second motor (2) and the reducer (3) are located on the support frame (9). The output shaft of the reducer (3) is set horizontally. One end of the output shaft of the reducer (3) is fixedly connected to the center of the flywheel (71). One end of the connecting rod (72) is rotatably connected to the end face of the flywheel (71). The other end of the connecting rod (72) is rotatably connected to the upper end of the ball screw (4). The ball head of the ball screw (4) is set in the grinding bowl groove (54). The second motor (2) drives the reducer (3) to rotate. The reducer (3) drives the flywheel (71) to rotate. The flywheel (71) drives the connecting rod (72) to move forward and backward. The connecting rod (72) drives the upper end of the ball screw (4) to swing back and forth. The first motor (6) drives the worm (10) to rotate. The rotation of the worm drives the fixed seat (52) and the grinding bowl (51) on it to rotate horizontally. The ball screw (4) and the grinding bowl groove (54) grind each other.

2. The ball-head screw grinding machine according to claim 1, characterized in that, The worm gear mechanism (11) is located inside the base (1).

3. The ball-head screw grinding machine according to claim 1, characterized in that, A belt drive mechanism (8) is provided between the first motor (6) and the worm gear mechanism (11). The belt drive mechanism (8) includes a first pulley (81), a second pulley (82) and a belt (83). The first pulley (81) is located on the motor shaft of the first motor (6), the second pulley (82) is located on the worm (10) of the worm gear mechanism (11), and the belt (83) connects the first pulley (81) and the second pulley (82).

4. The ball-head screw grinding machine according to claim 3, characterized in that, The worm (10) of the worm gear mechanism (11) extends horizontally out of the side of the base (1), and the second pulley (82) is mounted on the worm (10) of the worm gear mechanism (11).

5. The ball-head screw grinding machine according to claim 4, characterized in that, The lower end of the drive shaft (12) extends vertically downward into the base (1) and is fixedly connected to the center of the worm gear.

6. The ball-head screw grinding machine according to claim 5, characterized in that, The top of the fixed base (52) is detachably provided with multiple locking blocks (53), which press the grinding ball bowl (51) onto the fixed base (52).

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