Automatic ball grinding equipment

Abstract

The utility model discloses automatic ball grinding equipment, which relates to the field of ball grinding equipment and comprises a grinding mechanism, a clamping mechanism, a conveying mechanism and a frame. The grinding mechanism comprises a grinding head and a grinding motor; the grinding heads are used for bearing and grinding workpieces, and the grinding heads with different precisions are arranged according to the grinding precision gradient, arranged on the upper side of the rack and driven by the grinding motor to rotate around the vertical axis of the grinding heads. The conveying mechanism is movably connected with the rack and has the capacity of vertically moving and horizontally moving in the arrangement direction of the grinding heads. A pair of clamping jaws and a pair of driving rollers are arranged on the upper side of each grinding head; each grinding head is located between the corresponding pair of clamping jaws, and each pair of clamping jaws is connected with the conveying mechanism and driven by the conveying mechanism to vertically move and horizontally move in the opposite directions to clamp and convey workpieces. Each polishing head is located between a pair of driving rollers, the driving rollers are horizontally arranged and have the capacity of rotating around the horizontal axis, and each pair of driving rollers are connected with the conveying mechanism, driven by the conveying mechanism to vertically move and abut against a workpiece during polishing.

Description

Technical Field

[0001] This utility model relates to the field of precision ball grinding equipment, specifically an automated ball grinding equipment. Background Technology

[0002] The grinding process of spheres mainly includes two processes: grinding and handling. In production, the grinding process is often divided into multiple stages according to the specific indicators required for the surface smoothness, sphere size and sphere roundness of the target sphere. Each stage uses equipment with different grinding precision to grind the spheres step by step. The handling and conveying of the sphere blanks are interspersed between these different stages.

[0003] In existing technologies, most ball grinding equipment can only perform grinding with a single precision on a single machine. To achieve gradient precision grinding, it is often necessary to set up multiple grinding machines to handle different precision processing, or to achieve gradient precision grinding by changing the grinding tools of the machines step by step. In addition, in order to ensure that the surface of the spherical blank is ground as evenly as possible during ball processing, it is also necessary to continuously drive the ball to roll so that every part of the spherical surface is ground by the grinding tools.

[0004] The method of setting up multiple machines directly increases production costs and indirectly increases the additional handling and circulation structure, further increasing equipment investment; while the method of frequently changing grinding tools consumes additional time, indirectly reducing production efficiency and is not conducive to the large-scale and efficient production of spheres. Utility Model Content

[0005] This invention provides an automated ball grinding equipment that can perform gradient precision grinding and transport of ball blanks on a single machine, thereby reducing production costs and improving ball grinding efficiency.

[0006] An automated ball grinding device includes a grinding mechanism, a clamping mechanism, a conveying mechanism, and a frame. The grinding mechanism includes a grinding head and a grinding motor. The grinding head is used to support and grind the workpiece. Several grinding heads with different grinding precisions are arranged in a gradient according to the grinding precision and are rotatably mounted on the upper side of the frame. They are driven by the grinding motor to rotate around their own vertical axis. The conveying mechanism is movably connected to the frame and has the ability to move vertically and horizontally along the arrangement direction of the grinding heads. Each grinding head is provided with a pair of grippers and a pair of drive rollers on its upper side. Each grinding head is located between a pair of grippers, and each pair of grippers is connected to the conveying mechanism so as to be driven by it to move vertically and horizontally towards each other, clamping and conveying the workpiece. Each grinding head is located between a pair of drive rollers, and the drive rollers are all horizontally arranged and have the ability to rotate around a horizontal axis. Each pair of drive rollers is connected to the conveying mechanism so as to be driven by it to move vertically and press against the workpiece during grinding.

[0007] As a further improvement of this utility model, during grinding, the workpiece is simultaneously driven by the vertical axial rotation of the grinding head and the horizontal axial rotation of the drive roller, and the grinding head has the ability to contact and grind any position on the surface of the workpiece.

[0008] As a further improvement of this utility model, the drive rollers are horizontally spaced apart, and a circular arc-shaped depression is formed in the middle of the drive rollers. The circular arc-shaped depressions of the two rollers envelop each other at the interval to form a circular clamping position.

[0009] As a further improvement of this utility model, the conveying mechanism includes a translation table, a lifting beam, a transverse cylinder, and a longitudinal cylinder. The translation table is slidably connected to the frame and driven by the transverse cylinder, and has the ability to reciprocate along the grinding head arrangement direction. The lifting beam is slidably connected to the translation table and driven by the longitudinal cylinder, and has the ability to reciprocate along the vertical direction. The grippers and drive rollers are directly or indirectly connected to the lifting beam to maintain follow-up.

[0010] As a further improvement of this utility model, it also includes a connecting frame and a clamping cylinder. The connecting frame is a frame structure formed by the arrangement of rods in the form of cuboid edges, which is fixedly connected to the lifting beam to maintain follow-up. The gripper is fixedly connected to the output end of the clamping cylinder, which is fixedly connected to the lower middle part of the connecting frame. The output end of the clamping cylinder is perpendicular to the arc-shaped recess of the drive roller.

[0011] As a further improvement of this utility model, the drive roller is rotatably connected to the connecting frame, and a sliding connection structure is provided at both ends of the drive roller and the connecting frame that are rotatably connected. The sliding connection structure has the ability to adjust the interval distance between the two drive rollers.

[0012] As a further improvement of this utility model, it also includes a drive motor, which is fixedly mounted on the connecting frame and located above the drive roller. The output end of the drive motor is connected to the two drive rollers below for rotational transmission via a belt or chain.

[0013] As a further improvement of this utility model, a tensioning wheel is provided on one side of the output end of the drive motor of the connecting frame, and the wheel surface of the tensioning wheel abuts against the belt or chain used for driving the drive motor and the drive roller.

[0014] As a further improvement of this utility model, the plurality of grinding heads with different grinding precisions are arranged at intervals along a horizontal straight line in such a way that the grinding precision gradually increases. The side with lower grinding precision is the feeding side, and the side with higher grinding precision is the unloading side.

[0015] Compared with the prior art, the advantages of this utility model are as follows:

[0016] I. This precision ball grinding equipment is equipped with a grinding mechanism with progressively increasing grinding precision on a single machine, which realizes gradient precision processing of ball grinding on a single machine, facilitating continuous and efficient production.

[0017] 2. The drive roller and grinding head of this precision ball grinding equipment apply different rotational driving forces to the ball blank, which can drive the ball blank to roll, so as to ensure that each part of the ball is fully ground.

[0018] Third, the drive rollers and grippers work together to firmly grasp the ball, and by adjusting the interval of the drive rollers, they can be matched to grasp balls of different sizes, ensuring the versatility of the clamping mechanism. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0020] Figure 2 This is a schematic diagram of the material feeding side of this utility model;

[0021] Figure 3 This is a schematic diagram of the clamping device of this utility model;

[0022] Figure 4 This is a schematic diagram of the clamping mechanism of this utility model when clamping a ball;

[0023] Figure 5 This is a schematic diagram of the conveying mechanism of this utility model;

[0024] Figure 6 A schematic diagram of the structure of the clamping mechanism of this utility model after adding a tensioning wheel;

[0025] Figure 7 The clamping area formed by the grippers of this utility model;

[0026] Figure 8 The arc-shaped recess of the drive roller of this utility model is enveloping a circular clamping position in the space.

[0027] Figure 9 This is a schematic diagram of the structure of the drive roller and tensioner wheel of this utility model when matched with a large-sized ball;

[0028] Figure 10 This is a schematic diagram of the structure of the drive roller and tensioner wheel of this utility model when matched with a small-sized ball;

[0029] Figure 11 This is a schematic diagram of the workpiece transportation steps of this utility model;

[0030] 1. Grinding mechanism; 2. Clamping mechanism; 3. Conveying mechanism; 4. Frame; 101. Grinding head; 102. Grinding motor; 201. Gripper; 202. Drive roller; 203. Drive motor; 204. Connecting frame; 205. Clamping cylinder; 206. Tensioner wheel; 301. Horizontal moving table; 302. Lifting beam; 303. Horizontal moving cylinder; 304. Longitudinal moving cylinder. Detailed Implementation

[0031] Please see the appendix Figure 1 -Appendix Figure 11 Specific Implementation Example 1:

[0033] An automated ball grinding equipment is characterized by comprising a grinding mechanism 1, a clamping mechanism 2, a conveying mechanism 3, and a frame 4.

[0034] The grinding mechanism 1 includes a grinding head 101 and a grinding motor 102. The grinding head 101 is cylindrical in shape, with an arc-shaped recessed grinding cavity at one end. The grinding cavity of the grinding head 101 faces upward and is rotatably mounted on the upper side of the machine frame 4. The grinding motor 102 is fixedly mounted on the lower side of the machine frame 4, and its output end is connected to the grinding head 101 to drive it to rotate around its axis.

[0035] like Figure 1 As shown, a total of 7 grinding heads 101 are provided on the frame 4. The 7 grinding heads 101 are arranged collinearly with uniform intervals. The grinding precision of the grinding heads 101 increases gradually from right to left. The right side with relatively lower grinding precision is the feeding end.

[0036] like Figure 5 As shown, a conveying mechanism 3 is installed on the table of the machine frame 4. The conveying mechanism 3 includes a translation table 301, a lifting beam 302, a transverse cylinder 303, and a longitudinal cylinder 304. The translation table 301 is horizontally arranged along the arrangement direction of the grinding heads 101. The transverse cylinder 303 is horizontally mounted on the table of the machine frame 4, and its output end is fixedly connected to the translation table 301. A guide rail slider is provided at the bottom of the translation table 301, which is slidably connected to the machine frame 4 through the guide rail slider. The translation table 301 can perform reciprocating translational motion under the push of the transverse cylinder 303. Four vertically arranged slide rails are fixedly installed on the upper side of the translation table 301. The lifting beam 302 is correspondingly provided with guide rail sliders that are vertically slidably connected to the slide rails. The longitudinal cylinder 303 is spaced between the slide rails, and its output end is fixedly connected to the lifting beam 302 to drive the lifting beam 302 to move vertically up and down.

[0037] The clamping mechanism 2 includes a gripper 201, a drive roller 202, a drive motor 203, a connecting frame 204, and a clamping cylinder 205. The connecting frame 204 is composed of rods arranged in a cuboid-like pattern. One end of the connecting frame 204 is fixedly connected to the side wall of the lifting beam 302, and it rises and falls vertically together with the lifting beam 302. Figure 1 As shown, there are a total of 8 evenly spaced clamping mechanisms 2 on the lifting beam 302, with the 7 clamping mechanisms 2 on the left side each corresponding to the grinding mechanism 1 directly below.

[0038] The 7 clamping mechanisms on the left are as follows: Figures 3-4 As shown, two clamping cylinders 205 are fixedly installed on the middle of both sides of the frame of the connecting frame 204. The output ends of the two clamping cylinders 205 face the inside of the connecting frame 204 and are symmetrically arranged with their output ends facing each other. The gripper 201 is formed by bending a vertically arranged plate vertically in the horizontal direction. The middle part of the vertical plate is fixedly connected to the output end of the clamping cylinder 205. The horizontally bent part of the gripper 201 extends in the extension direction of the clamping cylinder 205 connected to it. The two grippers 201 together form a half-enclosed space. Figure 7 The area enclosed by the dashed frame between the two grippers 201. A drive roller 202 is horizontally positioned above each of the two grippers 201, and each drive roller 202 has a circular indentation in its center. The two ends of the drive roller 202 are rotatably connected to the central member of the connecting frame 204 via lugs. A drive motor 203 is fixedly mounted above the central member, and the output of the drive motor 203 outputs rotational driving force to the two drive rollers 202 via a belt or chain. The circular indentations of the two drive rollers 202 enclose a circular clamping position in the space. Figure 8 The space represented by the dotted sphere is directly opposite the grinding head 101. When clamping the spherical blank, the jaws 201 on both sides extend towards the center at the same time, lifting the sphere upward to the circular clamping position, which is then completed with the help of the two drive rollers 202 above.

[0039] The rightmost clamping mechanism 2 faces the feeding end. This clamping mechanism 2's connecting frame 204 does not have a drive roller 202 or a drive motor 203. A downward-facing gripper 201 is mounted on the central member of the connecting frame 204. Two clamping cylinders 205 are fixedly mounted on the middle of both sides of the frame of the connecting frame 204, facing inwards and symmetrically arranged with their output ends opposite each other. A shovel-shaped gripper 201 is fixedly connected to the output end of each clamping cylinder 205. A feeding track is located below the gripper 201. When clamping the spherical blank, the grippers 201 on both sides hold the sides of the sphere and push it upwards, cooperating with the downward-facing gripper 201 to complete the clamping of the sphere.

[0040] Working principle:

[0041] In the initial state, the transverse cylinder 303 is in the retracted state, the 7 clamping mechanisms 2 on the left are directly opposite the 7 grinding heads 101 below, the clamping mechanism 2 on the far right is directly opposite the feeding track below, and the longitudinal cylinder 304 is in the extended state, lifting the lifting beam 302 upward.

[0042] During feeding, the longitudinal cylinder 304 retracts, lowering the lifting beam 302. The rightmost clamping mechanism 2 descends with the lifting beam 302 to the feeding track, where the gripper 201 clamps and fixes the spherical billet. Then, as... Figure 11 As shown in step S1, the longitudinal cylinder 304 extends, lifting the lifting beam 302 upwards and causing the clamping mechanism 2 holding the ball to move upwards. Subsequently, as... Figure 11 As shown in step S2, the transverse cylinder 303 extends, causing the translation table 301 to move away from the loading end by the distance of the clamping mechanism 2. The clamping mechanism 2, which holds the ball, moves above the grinding head 101 with the lowest grinding precision. Then, as... Figure 11 As shown in step S3, the longitudinal cylinder 304 retracts, causing the lifting beam 302 to descend. The clamping mechanism 2 then causes the ball to fall onto the grinding head 101 with the lowest grinding precision, achieving the desired result. Figure 11 In step S4, the spherical blank is clamped and returned to its initial state, which is considered as completing one loading action.

[0043] During grinding, the longitudinal cylinder 304 retracts and descends, causing the clamping mechanism 2 above the grinding head 101 with the lowest grinding precision to descend until the two drive rollers 202 press down on the ball. Then, the drive motor 203 starts and drives the ball to rotate through the drive rollers 202. In conjunction with the grinding head 101 driven by the grinding motor 102, every part of the ball blank surface is driven to fully contact and grind with the grinding head 101.

[0044] Subsequently, the mechanism repeats the feeding action, moving the ball that has undergone one grinding step forward to the adjacent higher precision grinding head 101, while simultaneously replenishing the ball blank from the feeding end to the lowest grinding precision grinding head 101.

[0045] Repeat the above process, continuously replenishing the ball blanks and transporting the polished balls to the adjacent higher precision polishing head, until polishing of 7 precision levels is completed.

[0046] Specific Implementation Example 2: Based on Specific Implementation Example 1, such as Figure 6 , Figure 9 and Figure 10As shown, the lugs at both ends of the drive roller 202 on the clamping mechanism 2 are slidably connected to the connecting frame 204 through a sliding groove structure. When matching balls of different sizes, the two drive rollers 202 on the connecting frame 204 can move horizontally to change the size of the circular clamping position formed by the two drive rollers 202 to adapt to the ball. Furthermore, a tensioning wheel 206 is provided at the middle position of the end where the two drive rollers 202 are rotatably connected to the drive motor 203. The shaft end of the tensioning wheel 206 is slidably embedded in the vertical sliding groove in the middle of the connecting frame, and a compressed spring is provided below the shaft end of the tensioning wheel 206 to provide an upward thrust to the tensioning wheel 206. The chain or belt that transmits power to the drive roller 202 rotates and presses against the tensioning wheel 206 to achieve tension.

[0047] When the two drive rollers 202 shift to change the interval, the tensioning wheel 206 moves accordingly to keep the belt or chain taut in real time, and drives the two drive rollers 202 to change the interval through the belt or chain. When the equipment changes to process balls of different sizes, the manual adjustment of the clamping mechanism 2 can be eliminated.

[0048] The above description is only a preferred embodiment of the present utility model and is not intended to limit the scope of the invention. All variations, modifications and substitutions within the spirit and principle of the present invention are within the protection scope of the present utility model.

Claims

1. An automated ball grinding device, characterized in that: It includes a grinding mechanism (1), a clamping mechanism (2), a conveying mechanism (3), and a frame (4); The grinding mechanism (1) includes a grinding head (101) and a grinding motor (102); the grinding head (101) is used to support and grind the workpiece. Several grinding heads (101) with different grinding precision are arranged according to the grinding precision gradient and are rotatably set on the upper side of the frame (4). They are driven by the grinding motor (102) to rotate around their own vertical axis. The conveying mechanism (3) is movably connected to the frame (4) and has the ability to move vertically and horizontally along the arrangement direction of the grinding heads (101); Each grinding head (101) is provided with a pair of grippers (201) and a pair of drive rollers (202) on its upper side; each grinding head (101) is located between a pair of grippers (201), and each pair of grippers (201) is connected to the conveying mechanism (3) so as to be driven by it to move vertically and horizontally to each other, to grip and transport the workpiece; each grinding head (101) is located between a pair of drive rollers (202), and the drive rollers (202) are horizontally arranged and have the ability to rotate around the horizontal axis. Each pair of drive rollers (202) is connected to the conveying mechanism (3) so as to be driven by it to move vertically and to press against the workpiece during grinding.

2. The automated ball grinding equipment according to claim 1, characterized in that: During grinding, the workpiece is simultaneously driven by the vertical axial rotation of the grinding head (101) and the horizontal axial rotation of the drive roller (202). The grinding head (101) has the ability to contact and grind any position on the surface of the workpiece.

3. The automated ball grinding equipment according to claim 1, characterized in that: The drive rollers (202) are horizontally spaced apart, and a circular arc-shaped recess is formed in the middle of the drive rollers (202). The circular arc-shaped recesses of the two rollers envelop each other at the interval to form a circular clamping position.

4. The automated ball grinding equipment according to claim 1, characterized in that: The conveying mechanism (3) includes a translation table (301), a lifting beam (302), a transverse cylinder (303), and a longitudinal cylinder (304). The translation table (301) is slidably connected to the frame (4) and driven by the transverse cylinder (303), and has the ability to reciprocate along the arrangement direction of the grinding heads (101). The lifting beam (302) is slidably connected to the translation table (301) and driven by the longitudinal cylinder (304), and has the ability to reciprocate along the vertical direction. The gripper (201) and the drive roller (202) are directly or indirectly connected to the lifting beam (302) to maintain follow-up.

5. The automated ball grinding equipment according to claim 4, characterized in that: It also includes a connecting frame (204) and a clamping cylinder (205). The connecting frame (204) is a frame structure formed by the arrangement of rods in the form of cuboid edges, which is fixedly connected to the lifting beam (302) to maintain follow-up. The gripper (201) is fixedly connected to the output end of the clamping cylinder (205), and the clamping cylinder (205) is fixedly connected to the lower middle part of the connecting frame (204). The output end of the clamping cylinder (205) is perpendicular to the arc-shaped recess of the drive roller (202).

6. The automated ball grinding equipment according to claim 5, characterized in that: The drive roller (202) is rotatably connected to the connecting frame (204), and a sliding connection structure is provided at both ends of the drive roller (202) and the connecting frame (204) for rotatable connection. The sliding connection structure has the ability to adjust the interval distance between the two drive rollers (202).

7. The automated ball grinding equipment according to claim 5, characterized in that: It also includes a drive motor (203), which is fixedly mounted on the connecting frame (204) and located above the drive roller (202). The output end of the drive motor (203) is connected to the two drive rollers (202) below through a belt or chain to achieve rotational transmission.

8. The automated ball grinding equipment according to claim 7, characterized in that: The connecting frame (204) has a tensioning wheel (206) on one side of the output end of the drive motor (203). The wheel surface of the tensioning wheel (206) abuts against the belt or chain used for the drive motor (203) and drive roller (202).

9. The automated ball grinding equipment according to claim 1, characterized in that: The several grinding heads (101) with different grinding precisions are arranged at intervals along the horizontal straight line in such a way that the grinding precision gradually increases. The side with lower grinding precision is the feeding side, and the side with higher grinding precision is the unloading side.

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