Full-automatic ball grinding device

Abstract

According to the technical scheme, the full-automatic ball grinding device is characterized by comprising a machine base, a feeding mechanism, a grinding mechanism and a discharging mechanism are arranged on the machine base, the feeding mechanism comprises an obliquely-arranged material frame, the outlet end of the material frame is provided with a vertically-arranged preparation bin, the preparation bin is provided with an outlet which is through in the front-back direction, and the discharging mechanism is arranged on the machine base. An ejector rod is arranged on one side of the front end of the outlet; the grinding mechanism comprises a grinding wheel and a movable frame capable of moving and deflecting on the machine base, the movable frame moves beside the grinding wheel and between the rear end of the outlet and the discharging mechanism, and a rotating shaft is arranged on the movable frame. The full-automatic ball grinding machine can grind and machine balls in a full-automatic mode, saves labor and is high in production efficiency.

Description

Technical Field

[0001] This utility model relates to the field of valve ball processing technology, and more specifically to a fully automatic ball grinding device. Background Technology

[0002] Ball valves are mainly used in pipelines for shut-off, distribution, and changing the flow direction of media. They can be tightly closed by rotating 90 degrees and are widely used in industries such as petroleum refining, chemical, water conservancy and power. The plug of a ball valve is a ball with a circular through hole or channel through its axis. In the production and processing of ball valves, after the ball is roughly machined into a spherical shape, it needs to be ground to remove the protrusions on the surface of the ball before further processing.

[0003] Currently, the grinding of balls mainly relies on semi-automatic equipment. For example, Chinese patent CN202021263040.2 discloses a grinding device for ball valve ball processing, which has an automatic grinding function. However, the loading and unloading of the balls still requires manual assistance. Limited by manual labor, the processing efficiency cannot be improved. Moreover, the manual labor is repetitive and the labor intensity is also very high, which needs to be improved. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a fully automatic ball grinding device that can automatically grind and process balls, saving labor and increasing production efficiency.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a fully automatic ball grinding device, comprising a base, on which a feeding mechanism, a grinding mechanism, and a discharging mechanism are provided. The feeding mechanism includes an inclined material rack, and a vertically arranged preparation chamber is provided at the outlet end of the material rack. The preparation chamber has a through outlet, and a top rod is provided on one side of the front end of the outlet. The grinding mechanism includes a grinding wheel and a movable and rotatable frame on the base. The movable frame moves between the grinding wheel, the rear end of the outlet, and the discharging mechanism, and a rotating shaft is provided on the movable frame.

[0006] When the movable frame is located at the rear end of the outlet, the top rod pushes the ball out from the rear end of the outlet and onto the rotating shaft;

[0007] When the movable frame is located next to the grinding wheel, the grinding wheel and the rotating shaft rotate, and the movable frame deflects back and forth to grind the sphere.

[0008] When the movable frame is at the discharge mechanism, the polished sphere leaves the device through the discharge mechanism.

[0009] The present invention is further configured such that: a movable partition is provided on one side of the preparation chamber, the partition corresponding to the outlet and including a first partition and a second partition arranged in an L shape, the first partition and the second partition being used to block the upper and rear ends of the outlet, respectively.

[0010] The present invention is further configured such that: a waxing wheel is provided on the polishing wheel, and the waxing wheel is slidably arranged up and down to be against or away from the polishing wheel.

[0011] The present invention is further configured such that: the polishing device includes a vertical plate, a slide rail is fixedly mounted on the vertical plate, a movable plate is mounted on the slide rail, the waxing wheel is mounted on the movable plate, and a counterweight pulling mechanism and a cylinder are mounted on the movable plate. The counterweight pulling mechanism is used to drive the waxing wheel away from the polishing wheel, and the cylinder is used to drive the waxing wheel to abut against the polishing wheel.

[0012] The present invention is further configured such that: the discharge device includes a discharge slide and a pusher plate disposed on the movable frame, the pusher plate being sleeved on the rotating shaft and being axially movable relative to the rotating shaft, for pushing the ball on the rotating shaft off the rotating shaft and letting it fall into the discharge slide.

[0013] The present invention is further configured such that: a lowering mechanism is provided at the end of the discharge chute, the lowering mechanism being used to lower the ball into an external storage box.

[0014] The present invention is further configured such that: the lowering mechanism includes a discharge port and a lowering hopper, the lowering hopper can be raised and lowered to lower the ball into the storage box, and the lowering hopper tilts after descending so that the ball is poured into the storage box.

[0015] The present invention is further configured such that: a cavity is provided inside the rotating shaft, a movable support plate is provided on the periphery of the cavity, and a telescopic rod with an inclined surface is provided inside the cavity, the inclined surface of the telescopic rod allowing the movable support plate to move in the radial direction of the rotating shaft.

[0016] The present invention is further configured such that: the cavity has a spiral groove and a spring, the two ends of the spring abut against the bottom of the cavity and the end of the telescopic rod respectively, and the telescopic rod has a locking pin that engages with the spiral groove. When the rotating shaft rotates, the locking pin slides in the spiral groove due to inertia, thereby causing the telescopic rod to retract.

[0017] The present invention is further configured such that: a linear slide is provided on the base, a support platform is provided at the end of the linear slide, a mounting hole is provided on the support platform, a rotating shaft is provided in the mounting hole, a movable frame is installed above the rotating shaft, and a servo motor is installed below the rotating shaft.

[0018] In summary, this utility model has the following beneficial effects:

[0019] The movable frame of this invention can be moved to the feeding mechanism. The feeding mechanism pushes the ball from the outlet of the preparation chamber onto the rotating shaft via a top rod. Then, the movable frame moves to the grinding mechanism. The movable frame is deflected under the control of a servo motor under the rotating shaft, and works with the grinding wheel to grind the ball. After processing, the movable frame moves to the discharge station, and the pusher plate pushes the ball from the rotating shaft into the discharge chute, thus achieving discharge. Therefore, this invention, by setting up a feeding mechanism, a grinding mechanism, and a discharge mechanism, achieves fully automated ball grinding, greatly improving processing efficiency while reducing manual labor intensity. Attached Figure Description

[0020] Figure 1 This is a simplified schematic diagram of the overall structure of the device.

[0021] Figure 2 This is a structural diagram of the feeding mechanism.

[0022] Figure 3 This is a schematic diagram of the grinding mechanism.

[0023] Figure 4 This is a schematic diagram of the material discharge mechanism.

[0024] Figure 5 This is a schematic diagram of the cross-sectional structure at the lowering mechanism.

[0025] Figure 6 This is a schematic diagram of the cross-sectional structure of the lowering mechanism during its lowering process.

[0026] Figure 7 This is a schematic diagram of the cross-sectional structure of the movable frame.

[0027] Reference numerals in the attached drawings: 1. Base; 2. Feeding mechanism; 201. Material rack; 202. Preparation bin; 2021. Outlet; 203. Top rod; 3. Grinding mechanism; 301. Movable frame; 3011. Rotating shaft; 302. Grinding wheel; 4. Discharge mechanism; 401. Discharge chute; 402. Push plate; 5. Partition; 501. First partition; 502. Second partition; 6. Wax replenishment wheel; 7. Vertical plate; 701. Slide rail; 702. 703. Moving plate; 704. Counterweight pulling mechanism; 705. Cylinder; 8. Lowering mechanism; 806. Material discharge port; 807. Lowering hopper; 808. Lifting cylinder; 809. Tilting cylinder; 9000. Linear slide; 901. Support platform; 902. Mounting hole; 903. Rotating shaft; 904. Servo motor; 10. Cavity; 1001. Spiral groove; 1002. Spring; 11. Movable support plate; 12. Telescopic rod; 1201. Locking pin. Detailed Implementation

[0028] The present invention will be further described in detail below with reference to the accompanying drawings.

[0029] This embodiment discloses a fully automatic ball grinding device, such as Figure 1-7 As shown, the machine includes a base 1, on which a feeding mechanism 2, a grinding mechanism 3, and a discharging mechanism 4 are mounted. The feeding mechanism 2 includes an inclined material rack 201, which stores valve core balls to be processed. Existing robotic arms or similar devices can be used to automatically feed the material rack 201, or manual feeding can be used (since the material rack 201 can hold approximately 10-20 balls, there is ample time for manual feeding without affecting processing efficiency). A vertically positioned preparation chamber 202 is located at the outlet end of the material rack 201. The balls to be processed in the material rack 201 fall into the preparation chamber 202. The preparation chamber 202 has a through-type outlet 2021, and a push rod 203 is located on one side of the front end of the outlet 2021. The push rod 203 can push the ball out from the rear end of the outlet 2021.

[0030] The grinding mechanism 3 includes a grinding wheel 302 and a movable and rotatable frame 301 on the base 1. The movable frame 301 moves between the grinding wheel 302, the rear end of the outlet 2021, and the discharge mechanism 4. A rotating shaft 3011 is provided on the movable frame 301. Specifically, when the movable frame 301 moves to the corresponding position, it performs the following functions:

[0031] When the movable frame 301 is located at the rear end of the outlet, the top rod 203 pushes the ball out from the rear end of the outlet 2021 and onto the rotating shaft 3011;

[0032] When the movable frame 301 is located next to the grinding wheel 302, both the grinding wheel and the rotating shaft rotate, and the movable frame reciprocates to grind the sphere.

[0033] When the movable frame 301 is located at the discharge mechanism 4, the polished ball leaves the device through the discharge mechanism 4.

[0034] Therefore, the movable frame 3011, as a key component of this utility model, drives the ball to move between various mechanisms, realizing fully automatic grinding and processing of feeding, grinding and discharging, thereby reducing the intensity of manual labor and improving work efficiency.

[0035] Furthermore, to avoid interference from the balls on the preparation chamber 202 with the ejected balls when the ejector rod 203 ejects the material, refer to Figure 2A movable partition 5 is provided on one side of the preparation chamber 202. The partition 5 corresponds to the outlet 2021 and includes a first partition 501 and a second partition 502 arranged in an L-shape. The first partition 501 and the second partition 502 are used to block the upper and rear ends of the outlet 2021, respectively. When the top material rod 203 pushes the material, the first partition 501 pushes forward to block the upper ball, and the second partition 502 retracts, leaving the outlet 2021 open. When the top material rod 203 returns to its original position, the second partition 502 pushes out to block the outlet 2021, and then the first partition 501 retracts, allowing the upper ball to fall again.

[0036] Furthermore, the polishing wheel 302 of the polishing device 3 is a flexible polishing wheel. As the polishing operation proceeds, the polishing wax on its surface will gradually be consumed, requiring periodic replenishment of wax on the polishing wheel. Figure 3 A waxing wheel 6 is provided above the polishing wheel 302. The waxing wheel 6 is slidably arranged to be against or away from the polishing wheel 302. Specifically, the polishing device 3 includes a vertical plate 7, on which a slide rail 701 is fixedly arranged. A movable plate 702 is arranged on the slide rail 701. The movable plate 702 can slide up and down. The waxing wheel 6 is arranged on the movable plate 702. A counterweight pulling mechanism 703 and a cylinder 704 are arranged on the movable plate. The counterweight pulling mechanism 703 is used to drive the waxing wheel 6 away from the polishing wheel, and the cylinder 704 is used to drive the waxing wheel 6 to be against the polishing wheel. After using the counterweight pulling mechanism 703, under the influence of gravity, the waxing wheel 6 will always be away from the polishing wheel 302 when no other forces are applied. Since the waxing wheel 6 is away from the polishing wheel 302 most of the time, using gravity to pull it is the most energy-efficient method. When waxing is needed, the cylinder 704 is pulled down, allowing the waxing wheel 6 to briefly contact the rotating polishing wheel for a period of time, ensuring that the circumference of the polishing wheel 302 is in contact with the waxing wheel 6 for waxing. It should be noted that a braking mechanism should also be installed on the waxing wheel 6 to ensure that it does not rotate with the polishing wheel when in contact with it. Furthermore, after the contact surface of the waxing wheel has worn for a period of time, the braking mechanism can be released, and the waxing wheel can be rotated by a certain angle.

[0037] Furthermore, refer to Figure 4 The discharge device 4 includes a discharge slide 401 and a pusher plate 402 mounted on the movable frame 301. The pusher plate 402 is sleeved on the rotating shaft 3011 and can move axially relative to the rotating shaft 3011. It is used to push the ball on the rotating shaft 3011 out of the rotating shaft and into the discharge slide 401. The pusher plate 402 is initially located inside the rotating shaft 3011, and the ball is mounted on the outside of the rotating shaft 3011. Therefore, when the pusher plate 402 is pushed from the inside to the outside, the ball will be pushed out of the rotating shaft 3011. After being pushed out, the pusher plate 402 returns to its original position.

[0038] Furthermore, the surface of the discharge chute 401 is covered with flexible rubber material to protect the polished sphere from damage caused by rolling within the chute. A lowering mechanism 8 is located at the end of the discharge chute 401, used to lower the sphere into an external storage box. Due to cost considerations, the storage box is generally not covered with flexible rubber; therefore, the lowering mechanism 8 needs to lower the sphere a certain distance to ensure it is as close to the storage box as possible, minimizing impact during the fall.

[0039] Furthermore, refer to Figure 5-6 The lowering mechanism 8 specifically includes a discharge port 801 and a lowering hopper 802. The lowering hopper 802 is controlled by a lifting cylinder 8021 to move up and down, lowering the ball into the storage box and reducing the falling height. After the lowering hopper 802 descends, it is controlled by a tilting cylinder 8022 to tilt the lowering hopper 802, pouring the ball into the storage box. Both the lifting cylinder 8021 and the tilting cylinder 8022 are connected to the lowering hopper 802 by ropes, and the lifting cylinder 8021 simultaneously controls the movement of the tilting cylinder 8022.

[0040] Furthermore, refer to Figure 7 To ensure the stability of the ball on the rotating shaft 3011, a cavity 10 is provided inside the rotating shaft 3011. Movable support plates 11 are provided around the periphery of the cavity 10. Preferably, four movable support plates 11 are provided, located on the four sides. The movable support plates 11 are made of deformable metal material, and their outer surface can be covered with rubber or other materials to increase friction. A telescopic rod 12 with an inclined surface is provided inside the cavity 10. The inclined surface of the telescopic rod 12 allows the movable support plates 11 to move radially in the rotating shaft 3011. Specifically, when the telescopic rod 12 retracts, the movable support plates 11 expand outwards due to the inclined surface, thus limiting and fixing the ball; when the telescopic rod 12 extends, the metal material returns to its original position due to its own elasticity, and the ball can be easily removed from the rotating shaft 3011.

[0041] Furthermore, the cavity 10 contains a spiral groove 1001 and a spring 1002. The two ends of the spring abut against the bottom of the cavity 10 and the end of the telescopic rod 12, respectively. The telescopic rod 12 has a locking pin 1201 that engages with the spiral groove 1001. When the rotating shaft 3011 rotates, the telescopic rod 12 does not rotate due to inertia. Therefore, through inertia, the locking pin 1002 slides in the spiral groove 1001. The spiral groove 1001 extends into the cavity 10 along the direction of the rotating shaft 3011's forward rotation. Therefore, under the action of the spiral groove 1001, the telescopic rod 12 retracts, and while the rotating shaft 3011 continues to rotate, the telescopic rod 12 remains in a retracted state. When rotation stops, the telescopic rod 12 and its locking pin 1201 are reset by the spring 1002, and correspondingly, the subsequent pusher plate 402 can smoothly push out the polished sphere.

[0042] Furthermore, a linear slide 9 is provided on the base 1, and a support platform 901 is provided at the end of the linear slide 9. The support platform 901 is provided with a mounting hole 902, and a rotating shaft 903 is provided in the mounting hole 902. A movable frame 301 is installed above the rotating shaft 903, and a servo motor is installed below it. The linear slide 9 drives the movable frame 301 to move between various workstations, and the servo motor 904 is used to deflect the movable frame 301 during grinding. The angle of reciprocating deflection is adjusted according to the arc surface of the ball to be ground, as long as it can cover the entire arc outer surface of the ball.

[0043] It should be noted that the description of the corresponding air circuit, circuit and specific device is omitted in this utility model, because the rotation, deflection and movement of the mechanism mentioned in this utility model are all achieved by using devices such as rotary motors, servo motors, cylinders, electric cylinders, linear motors or lead screws that are technically mature in the field, unless otherwise specified. The circuit and air circuit control also adopt mature technologies in the field.

[0044] 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 design concept of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A fully automatic ball grinding device, comprising a base (1), characterized in that: The base (1) is provided with a feeding mechanism (2), a grinding mechanism (3) and a discharging mechanism (4). The feeding mechanism (2) includes an inclined material rack (201). The outlet end of the material rack (201) is provided with a vertically arranged preparation chamber (202). The preparation chamber (202) is provided with a through outlet (2021). A top rod (203) is provided on one side of the front end of the outlet (2021). The grinding mechanism (3) includes a grinding wheel (302) and a movable frame (301) that can move and deflect on the base (1). The movable frame (301) moves between the grinding wheel (302), the rear end of the outlet (2021) and the discharging mechanism (4). A rotating shaft (3011) is provided on the movable frame (301). When the movable frame (301) is located at the rear end of the outlet, the top rod (203) pushes the ball out from the rear end of the outlet (2021) and onto the rotating shaft (3011); When the movable frame (301) is located next to the grinding wheel (302), the grinding wheel and the rotating shaft rotate, and the movable frame reciprocates to grind the ball. When the movable frame (301) is located at the discharge mechanism (4), the polished ball leaves the device through the discharge mechanism (4).

2. The fully automatic ball grinding device according to claim 1, characterized in that: A movable partition (5) is provided on one side of the preparation chamber (202). The partition (5) corresponds to the outlet (2021) and includes a first partition (501) and a second partition (502) arranged in an L-shape. The first partition (501) and the second partition (502) are used to block the top and rear end of the outlet (2021), respectively.

3. The fully automatic ball grinding device according to claim 1, characterized in that: The polishing wheel (302) is provided with a waxing wheel (6), which slides up and down to be against or away from the polishing wheel (302).

4. The fully automatic ball grinding device according to claim 3, characterized in that: The polishing mechanism (3) includes a vertical plate (7), a slide rail (701) is fixedly installed on the vertical plate (7), a movable plate (702) is installed on the slide rail (701), the waxing wheel (6) is installed on the movable plate (702), and a counterweight pulling mechanism (703) and a cylinder (704) are installed on the movable plate. The counterweight pulling mechanism (703) is used to drive the waxing wheel (6) away from the polishing wheel, and the cylinder (704) is used to drive the waxing wheel (6) to abut against the polishing wheel.

5. The fully automatic ball grinding device according to claim 1, characterized in that: The discharge mechanism (4) includes a discharge slide (401) and a pusher plate (402) mounted on a movable frame (301). The pusher plate (402) is sleeved on a rotating shaft (3011) and can move axially relative to the rotating shaft (3011). It is used to push the ball on the rotating shaft (3011) off the rotating shaft and into the discharge slide (401).

6. The fully automatic ball grinding device according to claim 5, characterized in that: The discharge chute (401) is provided with a lowering mechanism (8) at its end, which is used to lower the ball into an external storage box.

7. The fully automatic ball grinding device according to claim 6, characterized in that: The lowering mechanism (8) includes a discharge port (801) and a lowering hopper (802). The lowering hopper (802) can be raised and lowered to lower the ball into the storage box. After the lowering hopper (802) descends, it tilts so that the ball is poured into the storage box.

8. The fully automatic ball grinding device according to claim 1, characterized in that: A cavity (10) is provided inside the rotating shaft (3011), and a movable support plate (11) is provided on the periphery of the cavity (10). A telescopic rod (12) with an inclined surface is provided inside the cavity (10), and the inclined surface of the telescopic rod (12) allows the movable support plate (11) to move in the radial direction of the rotating shaft (3011).

9. The fully automatic ball grinding device according to claim 8, characterized in that: The cavity (10) has a spiral groove (1001) and a spring (1002). The two ends of the spring abut against the bottom of the cavity (10) and the end of the telescopic rod (12), respectively. The telescopic rod (12) has a locking pin (1201) that engages with the spiral groove (1001). When the rotating shaft rotates, the locking pin (1201) slides in the spiral groove (1001) due to inertia, causing the telescopic rod to retract.

10. The fully automatic ball grinding device according to claim 1, characterized in that: A linear slide (9) is provided on the base (1). A support platform (901) is provided at the end of the linear slide (9). A mounting hole (902) is provided on the support platform (901). A rotating shaft (903) is provided in the mounting hole (902). A movable frame (301) is installed above the rotating shaft (903), and a servo motor is installed below it.

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