Ball grinding device

Abstract

The invention relates to the technical field of ball machining, in particular to a ball grinding device which comprises a grinding chamber and a supporting rod. The grinding chamber comprises an upper cavity and a lower cavity; the upper cavity is attached to the lower cavity; wherein one supporting rod penetrates through the upper cavity, and the other supporting rod penetrates through the lower cavity. The supporting rod can move relative to the grinding chamber; the two supporting rods can be relatively close to or away from each other. An existing ball grinding device usually adopts a fixed grinding tool, and grinding is achieved by driving a ball to rotate through an external power source. However, when balls of different sizes are processed, the fixed grinding device is difficult to grind the different balls. Compared with the prior art, the two opposite supporting rods are arranged in the grinding chamber and can be far away from or close to each other, so that the relative positions of the supporting rods can be correspondingly adjusted according to different sizes of the balls, the grinding machine can grind the balls of various sizes, and the universality is high.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of ball processing, and in particular to a ball grinding device. BACKGROUND

[0002] Ball grinding devices are widely used in the field of precision machining, especially in the aerospace, automotive manufacturing and other industries, where they are mainly used for polishing metal balls. With the improvement of industrial automation level, the requirements for the surface quality of balls are becoming higher and higher. Traditional ball grinding methods mainly rely on manual operation or simple semi-automatic equipment. Although these methods can meet the basic grinding needs, they have great limitations in efficiency and accuracy. In order to improve production efficiency and product quality, in recent years, a variety of ball grinding devices with higher automation have appeared. These devices achieve higher grinding accuracy and more stable machining performance through the design optimization of mechanical structure.

[0003] Existing ball grinding devices usually use fixed grinding tools, which are driven to rotate by an external power source to achieve grinding. Specifically, such devices mainly include a fixed grinding head and a rotating clamp, which are driven by an electric motor or other power equipment to rotate the ball at a fixed position, thereby completing the grinding operation.

[0004] However, this fixed grinding device has obvious shortcomings when dealing with balls of different sizes. Since the positions of the grinding tool and the clamp are fixed and cannot be flexibly adjusted, it is necessary to recalibrate or replace the entire device when changing balls of different sizes, which not only increases the operation complexity, but also reduces the production efficiency. SUMMARY

[0005] In view of the technical problems of the prior art, the present application provides a ball grinding device.

[0006] To solve the above technical problems, the present application provides the following technical solutions:

[0007] A ball grinding device, comprising: a grinding chamber, a support rod; the grinding chamber comprises: an upper cavity, a lower cavity; the upper cavity is in close contact with the lower cavity; one of the support rods passes through the upper cavity, and the other support rod passes through the lower cavity; the support rod is movable relative to the grinding chamber; the two support rods can be relatively close or far away.

[0008] Further, it further comprises: a rotating motor, a gas cylinder; one end of the rotating motor is connected with the support rod, and the other end is connected with the gas cylinder.

[0009] Further, the grinding chamber further comprises: a grinding brush; the grinding brush is arranged oppositely inside the grinding chamber.

[0010] Further, the drive motor is connected with the drive gear, the drive gear is engaged with the driving gear.

[0011] Further, the grinding chamber further comprises a connecting rod, the connecting rod is arranged on the outer wall of the grinding chamber, and the connecting rod is connected with the driving gear.

[0012] Further, the driving gear is provided with a moving opening in the middle, the supporting rod passes through the moving opening, and the supporting rod can rotate relative to the moving opening.

[0013] Further, the driving gear further comprises a wheel disc, a rotating wheel and a fixed pulley, the rotating wheel is rotatably arranged on the wheel disc, the rotating wheel comprises a rotating groove and a clamping tooth, two rotating grooves are arranged on both sides of the clamping tooth, and the fixed pulley is arranged on the wheel disc.

[0014] Further, the grinding chamber further comprises a telescopic rod and a connecting rope, one end of the telescopic rod is connected with the grinding brush, the other end of the telescopic rod is connected with the connecting rope, the telescopic rod can move relative to the grinding chamber, one end of the connecting rope is arranged in the rotating groove, and the connecting rope abuts against the fixed pulley.

[0015] Further, the supporting rod comprises a chuck, the number of the chucks is several, the chucks are arranged from one end of the supporting rod to the other end, the supporting rod is provided with a clamping groove between the chucks, and the clamping tooth is corresponding to the clamping groove.

[0016] Further, the grinding chamber further comprises a spring, the telescopic rod passes through the spring, the telescopic rod is provided with an abutting plate on the side close to the grinding brush, one end of the spring is arranged on the inner wall of the grinding chamber, and the other side of the spring is connected with the abutting plate.

[0017] The grinding chamber is provided with two opposite supporting rods, and the two supporting rods can move away from or close to each other, so that the relative positions of the supporting rods can be adjusted according to the sizes of the spherical bodies, the grinding can be performed on spherical bodies of various sizes, and the universality is high.

[0018] The grinding brush with an adjustable position is also arranged, so that the position of the grinding brush can be adjusted according to the size of the spherical body, so that the grinding effect is suitable. Meanwhile, the corresponding telescopic rod, connecting rope and other structures are arranged on the grinding chamber, the rotating wheel on the driving gear and the chuck on the supporting rod are arranged, so that the position of the grinding brush can be adjusted when the position of the supporting rod is adjusted, so that when the present application is operated, a plurality of structures can be adjusted to a suitable position by using less operation, which is simple and convenient. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 The structure of the present application is shown in the figure.

[0020] Figure 2 The structure of the present application is shown in the figure.

[0021] Figure 3 : Schematic diagram of part of the structure of the present invention;

[0022] Figure 4 : Figure 3 Schematic diagram of the middle part structure;

[0023] Figure 5 : Figure 4 A partial enlarged view of middle A;

[0024] Figure 6 : Schematic diagram of the structure of the rotating wheel;

[0025] Figure 7 : Schematic diagram of the grinding chamber structure;

[0026] Figure 8 : Partial structural cross-section of the grinding chamber.

[0027] In the figure: 1. Grinding chamber; 11. Upper cavity; 12. Lower cavity; 13. Grinding brush; 14. Connecting rod; 15. Telescopic rod; 151. Contact plate; 16. Connecting rope; 17. Spring; 2. Support rod; 21. Chuck; 22. Slot; 3. Rotating motor; 4. Cylinder; 5. Driving motor; 6. Driving gear; 7. Driving gear; 71. Moving port; 72. Wheel; 73. Rotating wheel; 731. Rotating slot; 732. Gear; 74. Fixed pulley; 8. Housing; 81. Upper housing; 82. Lower housing; 9. Rotating structure. DETAILED DESCRIPTION

[0028] The following are specific embodiments of the present invention and the accompanying drawings to further describe the technical solutions of the present invention, but the present invention is not limited to these embodiments.

[0029] according to Figure 1-5 The present invention provides a ball grinding device, including: a grinding chamber 1, a support rod 2, a rotating motor 3, a cylinder 4, a driving motor 5, a driving gear 6, a driving gear 7, a housing 8, and a rotating structure 9.

[0030] Example 1:

[0031] The grinding chamber 1 includes: an upper cavity 11 and a lower cavity 12. The upper cavity 11 is fitted with the lower cavity 12. One of the support rods 2 passes through the upper cavity 11, and the other support rod 2 passes through the lower cavity 12. The support rod 2 can move relative to the grinding chamber 1. The two support rods 2 can be relatively close to or far away. A groove is provided on the side of the support rod 2 close to the grinding chamber 1. The shell 8 includes an upper shell 81 and a lower shell 82. The upper cavity 11 is arranged in the upper shell 81, and the lower cavity 12 is arranged in the lower shell 82. The rotating structure 9 is connected to the upper shell 81 and the lower shell 82, respectively. The rotating structure 9 can make the upper shell 81 rotate relative to the lower shell 82.

[0032] When the sphere needs to be ground, the rotating structure 9 is started to rotate the upper shell 81 relative to the lower shell 82 to separate the upper cavity 11 from the lower cavity 12, and then the sphere is placed on the groove of the support rod 2 in the lower cavity 12, and the rotating structure 9 is started again to make the upper shell 81 close to the lower shell 82 to make the upper cavity 11 fit with the lower cavity 12, and then the two support rods 2 are brought close to each other so that the two sides of the sphere are respectively in conflict with the two support rods 2, so that the sphere is fixed by the two support rods 2. By making the two support rods 2 respectively conflict with the sphere from both sides, the sphere is fixed. Since the two support rods 2 can be close to or away from each other, the sphere can be fixed in a larger range, so that the present invention can be applied to spheres of different sizes and has a wide range of versatility. Moreover, the present invention can make the two support rods 2 approach or move away at the same speed, so that when the sphere is fixed by the support rods 2, its center point remains consistent, that is, the center position of the sphere remains unchanged when it is fixed, so that the sphere can be fixed in a certain position, which is convenient for subsequent grinding of the sphere.

[0033] One end of the rotating motor 3 is connected to the support rod 2, and the other end is connected to the cylinder 4. The grinding chamber 1 also includes: a grinding brush 13. The grinding brush 13 is relatively arranged inside the grinding chamber 1. The driving motor 5 is connected to the driving gear 6. The driving gear 6 is engaged with the driving gear 7. The grinding chamber 1 also includes: a connecting rod 14. The connecting rod 14 is arranged on the outer wall of the grinding chamber 1. The connecting rod 14 is connected to the driving gear 7. A moving opening 71 is opened in the middle of the driving gear 7. The support rod 2 passes through the moving opening 71. The support rod 2 can rotate relative to the moving opening 71.

[0034] A grinding brush 13 is provided on the grinding chamber 1 so that the grinding brush 13 can grind the sphere. The present invention is provided with a drive motor 5. When the drive motor 5 is started, it will drive the drive gear 6 to rotate, and the drive gear 6 will then drive the drive gear 7 meshed with it to rotate. Since the grinding chamber 1 is connected to the drive gear 7 via a connecting rod 14, when the drive gear 7 rotates, it can also drive the grinding chamber 1 to rotate. When the grinding chamber 1 rotates, it will drive the grinding brush 13 to rotate. When the grinding brush 13 rotates, it can grind the sphere it contacts. Since the grinding brush 13 needs to grind the sphere, the support rod 2 cannot rotate in the same direction as the grinding chamber 1. Therefore, a movable opening 71 is opened on the drive gear 7 so that when the drive gear 7 rotates, it will not drive the support rod 2 to rotate. The cylinder 4 can drive the rotating motor 3 to move, so that the support rod 2 moves. At the same time, the rotating motor 3 can drive the support rod 2 to rotate, and the rotation direction of the support rod 2 is opposite to the rotation direction of the driving gear 7, so that the sphere can rotate in the opposite direction of the grinding brush 13. This can increase the relative speed between the grinding brush 13 and the sphere, so that the grinding effect of the grinding brush 13 on the sphere is stronger, and the grinding effect can be enhanced by rotating the motor 3.

[0035] Example 2:

[0036] The drive gear 7 also includes a wheel disc 72, a rotating wheel 73, and a fixed pulley 74. The rotating wheel 73 is rotatably mounted on the wheel disc 72. The rotating wheel 73 includes a rotating groove 731 and latching teeth 732. Two rotating grooves 731 are located on either side of the latching teeth 732. The fixed pulley 74 is mounted on the wheel disc 72. The grinding chamber 1 also includes a telescopic rod 15 and a connecting rope 16. One end of the telescopic rod 15 is connected to the grinding brush 13, and the other end is connected to the connecting rope 16. The telescopic rod 15 is movable relative to the grinding chamber 1. One end of the connecting rope 16 is located in the rotating groove 731. The connecting rope 16 abuts against the fixed pulley 74. The support rod 2 includes chucks 21. There are multiple chucks 21. The chucks 21 are arranged along the support rod 2 from one end to the other. The chucks 21 can pass through the movable opening 71. The support rod 2 has latching grooves 22 between the chucks 21. The latching teeth 732 correspond to the latching grooves 22. The grinding chamber 1 further includes a spring 17. The telescopic rod 15 passes through the spring 17. A contact plate 151 is provided on the side of the telescopic rod 15 near the grinding brush 13. One end of the spring 17 is disposed on the inner wall of the grinding chamber 1, and the other end is connected to the contact plate 151.

[0037] After the sphere is placed in the grinding chamber 1, the position of the support rod 2 needs to be adjusted according to its size. Correspondingly, when the size of the sphere changes, the distance between the grinding brush 13 and the sphere will also change. Therefore, the distance between the grinding brush 13 and the sphere needs to be adjusted so that the distance between the two is appropriate. The present invention is provided with a telescopic rod 15 connected to the grinding brush 13, and the telescopic rod 15 is connected to the connecting rope 16. One end of the connecting rope 16 is set in the rotating groove 731 of the rotating wheel 73. When the rotating wheel 73 rotates, the connecting rope 16 can be wound in the rotating groove 731, that is, the connecting rope 16 pulls the telescopic rod 15, so that the telescopic rod 15 drives the grinding brush 13 to move. At the same time, a contact plate 151 is provided on the side of the telescopic rod 15 close to the grinding brush 13. One end of the spring 17 is set on the inner wall of the grinding chamber 1, and the other side is connected to the contact plate 151. When the connecting rope 16 pulls the telescopic rod 1 5, the contact plate 151 will come into contact with the spring 17, causing the spring 17 to be compressed. When the rotating wheel 73 rotates, causing the connecting rope 16 wound in the rotating groove 731 to gradually move away from the rotating groove 731, the spring 17 will rebound, applying elastic force to the contact plate 151 to move the telescopic rod 15, so that the grinding brush 13 moves in the direction away from the connecting rope 16. That is, through the cooperation of the rotating wheel 73 and the spring 17, the grinding brush 13 can control the distance between the grinding brush 13 and the sphere by rotating the rotating wheel 73, so that corresponding adjustments can be made for spheres of different sizes. The present invention is further provided with a fixed pulley 74, and a connecting rope 16 is connected to the telescopic rod 15, the rotating wheel 73 and other structures of the present invention. The telescopic rod 15 can move in a certain direction during use and drive the connecting rope 16 to move. Since the connecting line of the telescopic rod 15 and the rotating wheel 73 is not on the straight line in the moving direction of the telescopic rod 15, the force applied to the telescopic rod 15 by the connecting rope 16 when pulling the telescopic rod 15 is no longer on the same straight line. Therefore, when pulling the telescopic rod 15, the connecting rope 16 needs to apply a greater force to it, which will result in a greater pressure on the connecting rope 16 to pull the telescopic rod 15. The connecting rope 16 will be subjected to greater force during operation, which may easily cause damage to the connecting rope 16, reducing its service life and the maintenance frequency of the present invention. The present invention allows a part of the connecting rope 16 to be wound around the fixed pulley 74, so that the moving direction of the connecting rope 16 changes between the two structures, that is, the direction of the force applied to the telescopic rod 15 is changed, that is, the fixed pulley 74 makes the connecting rope 16 match the movement direction of the pulled structure, so as to reduce the force required to be applied when pulling the corresponding structure, reduce the pressure on the connecting rope 16, and maintain stability when pulling other structures.If there are only a few grinding brushes 13 grinding the ball, the corresponding grinding ball curvature will change when the grinding brush 13 position moves, but the structure of the grinding brush 13 will not change, it is difficult to adapt to different sizes of the ball with the same grinding brush 13, the present application is provided with a plurality of grinding brushes 13, each grinding brush 13 can grind a part of the position of the ball, so as to reduce the influence of the curvature of the ball on the grinding effect of the grinding brush 13 when the size of the ball changes. When the grinding brush 13 is far away from the inner wall of the grinding chamber 1, that is, when grinding the smaller ball, the grinding brushes 13 of the present application have a part of the position of the ball that can be ground. When the grinding brush 13 gradually approaches the inner wall of the grinding chamber 1, the distance between the grinding brushes 13 gradually increases. When the distance between the grinding brushes 13 gradually increases, the grinding part of the ball gradually decreases. The present application can control the length of the grinding brush 13 so that when the grinding brush 13 reaches the position closest to the inner wall of the grinding chamber 1, that is, when the ball reaches the maximum size that can be ground by the present application, the grinding part of the ball that can be ground by the grinding brush 13 is just not overlapping. This makes it possible to grind the ball as much as possible at any position of the grinding brush 13, avoiding the situation that some parts of the ball cannot be ground. However, when the number of grinding brushes 13 is large, it is more troublesome to control the position of each grinding brush 13. The present application is provided with rotating grooves 731 on both sides of the rotating wheel 73, so that the rotating wheel 73 can control two grinding brushes 13 at the same time when it rotates. In addition, a plurality of clamping grooves 22 are provided on the support rod 2, and a plurality of clamping teeth 732 are provided on the rotating wheel 73. The clamping teeth 732 correspond to the clamping grooves 22, that is, one of the clamping teeth 732 is clamped in the clamping groove 22. When the support rod 2 moves, it will drive the clamping grooves 21 to move. When the clamping grooves 21 move, the clamping teeth 732 in the clamping grooves 22 will also move, so that the clamping teeth 732 drive the rotating wheel 73 to rotate, thereby driving the grinding brush 13 to move. That is, when the support rod 2 moves under the control of the cylinder 4, it can drive the grinding brush 13 to move, so that the grinding brush 13 moves correspondingly with the position of the support rod 2. When the position of the support rod 2 is adjusted to adapt to the size of the ball, the position of the grinding brush 13 can be controlled at the same time, so that when the ball is ground, only a few structures need to be adjusted to adjust the position of each component to the appropriate position, and the operation process is relatively simple and convenient. When the gear 7 drives the rotating wheel 73 to rotate around the support rod 2, the clamping teeth 732 of the rotating wheel 73 will rotate in the clamping grooves 22 and will not interfere with the clamping grooves 21, that is, the clamping grooves 21 will only drive the rotating wheel 73 to rotate along the circumferential plane of the rotating grooves 731, and will not interfere with the rotating wheel 73 unnecessarily.

[0038] The working principle and use process of the present application are as follows:

[0039] When the sphere needs to be ground, the cylinder 4 is first started to move the two support rods 2 away from each other to a certain position. When the two support rods 2 move away from each other, the chuck 21 drives the latching teeth 732 to rotate, causing the rotating wheel 73 to rotate, so that the connecting rope 16 is continuously wound in the rotating groove 731. The connecting rope 16 then pulls the telescopic rod 15, so that the telescopic rod 15 drives the grinding brush 13 to approach the inner wall of the grinding chamber 1. At the same time, the contact plate 151 contacts the spring 17, causing the spring 17 to become compressed. Restart the rotating structure 9 to rotate the upper shell 81 relative to the lower shell 82, so that the upper cavity 11 is separated from the lower cavity 12, and then the sphere is placed on the groove of the support rod 2 in the lower cavity 12, and then start the rotating structure 9 again to make the upper shell 81 close to the lower shell 82, so that the upper cavity 11 is fit with the lower cavity 12, and then start the cylinder 4 to make the two support rods 2 approach each other to a certain position, so that the two sides of the sphere respectively conflict with the two support rods 2. When the two support rods 2 approach each other, the chuck 21 drives the latch teeth 732 to rotate, causing the rotating wheel 73 to rotate, so that the part of the connecting rope 16 wrapped in the rotating groove 731 gradually moves away from the rotating groove 731, so that the connecting rope 16 becomes loose. At this time, the spring 17 rebounds and conflicts with the contact plate 151, causing the telescopic rod 15 to move, so that the grinding brush 13 gradually moves toward the sphere to a certain position. Then start the driving motor 5, drive the driving gear 6 to rotate, drive the gear 7 to rotate, drive the gear 7 to rotate the connecting rod 14, so that the grinding chamber 1 rotates. When the grinding chamber 1 rotates, the grinding brush 13 starts to rotate and grinds the ball.

[0040] In summary, the present invention sets two opposing support rods in the grinding chamber, and the two support rods can be moved away from or close to each other, so that the relative positions of the support rods can be adjusted according to the different sizes of the spheres, so that the present invention can grind spheres of various sizes and has high versatility.

[0041] The specific embodiments described herein are merely illustrative of the spirit of the present invention. Persons skilled in the art may make various modifications, additions, or substitutions to the described specific embodiments without departing from the spirit of the present invention or exceeding the scope of the appended claims.

Claims

1. A ball grinding device, characterized in that: include: Grinding chamber (1), support rod (2); The grinding chamber (1) comprises: an upper cavity (11) and a lower cavity (12); The upper cavity (11) and the lower cavity (12) are in contact with each other; One of the support rods (2) passes through the upper cavity (11), and the other support rod (2) passes through the lower cavity (12); The support rod (2) is movable relative to the grinding chamber (1); The two support rods (2) can be relatively close to or far away from each other.

2. A ball grinding device according to claim 1, characterized in that: It also includes: a rotating motor (3), a cylinder (4); One end of the rotating motor (3) is connected to the support rod (2), and the other end is connected to the cylinder (4).

3. A ball grinding device according to claim 1, characterized in that: The grinding chamber (1) further comprises: a grinding brush (13); The grinding brush (13) is relatively arranged inside the grinding chamber (1).

4. A ball grinding device according to claim 3, characterized in that: It also includes: a driving motor (5), a driving gear (6), and a driving gear (7); The driving motor (5) is connected to the driving gear (6); The driving gear (6) is meshed with the driving gear (7).

5. A ball grinding device according to claim 4, characterized in that: The grinding chamber (1) further comprises: a connecting rod (14); The connecting rod (14) is arranged on the outer wall of the grinding chamber (1); The connecting rod (14) is connected to the driving gear (7).

6. A ball grinding device according to claim 4, characterized in that: The driving gear (7) has a moving opening (71) in the middle; The support rod (2) passes through the moving opening (71); The support rod (2) is rotatable relative to the moving opening (71).

7. A ball grinding device according to claim 4, characterized in that: The driving gear (7) further includes: a wheel disc (72), a rotating wheel (73), and a fixed pulley (74); The rotating wheel (73) is rotatably arranged on the wheel disc (72); The rotating wheel (73) comprises: a rotating groove (731) and a latching tooth (732); The two rotation grooves (731) are arranged on both sides of the latching teeth (732); The fixed pulley (74) is arranged on the wheel disc (72).

8. A ball grinding device according to claim 7, characterized in that: The grinding chamber (1) further comprises: a telescopic rod (15) and a connecting rope (16); One end of the telescopic rod (15) is connected to the grinding brush (13), and the other end is connected to the connecting rope (16); The telescopic rod (15) is movable relative to the grinding chamber (1); One end of the connecting rope (16) is arranged in the rotating groove (731); The connecting rope (16) is in conflict with the fixed pulley (74).

9. A ball grinding device according to claim 7, characterized in that: The support rod (2) comprises: a chuck (21); The number of the chucks (21) is several; The chuck (21) is arranged along one end of the support rod (2) toward the other end; The support rod (2) has a clamping groove (22) between the chucks (21); The latching teeth (732) correspond to the latching slot (22).

10. A ball grinding device according to claim 8, characterized in that: The grinding chamber (1) further comprises: a spring (17); The telescopic rod (15) passes through the spring (17); A contact plate (151) is provided on one side of the telescopic rod (15) close to the grinding brush (13); One end of the spring (17) is arranged on the inner wall of the grinding chamber (1), and the other end is connected to the contact plate (151).

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