A rotary disc type multi-station ceramic disc blank bottom grinding machine

Abstract

The application relates to a rotary disc type multi-station ceramic disc blank bottom grinding machine and relates to the technical field of ceramic disc blank bottom grinding. The ceramic disc blank bottom grinding machine comprises a workbench and a grinding seat, a rotating seat is rotationally installed on the side wall of the workbench, five sliding seats are fixed on the side wall of the rotating seat, an adjusting assembly is arranged in the sliding seat, six rotating tables are rotationally installed on the surface of the workbench, a processing table is fixed on the top of the rotating table, a suction seat is installed in the processing table, a suction disc is arranged at the end of the suction seat, a suction assembly is arranged in the suction seat, a sliding sleeve is sleeved on the surface of the rotating table, and three push rods are fixed on the top of the sliding sleeve. Through the sliding seat, the rotating table, the processing table, the suction seat and the suction assembly, the ceramic disc blank bottom grinding machine can avoid the problem that the suction force is too large in the feeding stage and the ceramic disc blank is inconvenient to take and place, can provide sufficient clamping force under the high centrifugal working condition of high-speed grinding, can avoid the risk that the blank body slips, deviates and is thrown out from the root, and can improve the processing stability and the qualified rate of finished products.

Description

Technical Field

[0001] This invention relates to the field of ceramic blank grinding technology, specifically a rotary multi-station ceramic blank grinding machine. Background Technology

[0002] The rotary multi-station ceramic blank grinding machine is a specialized piece of equipment used in daily-use ceramics production for grinding the bottom of ceramic blanks. Its core relies on a large-diameter rotary table to achieve parallel processing at multiple stations. Multiple workpiece supports with independent rotating shafts are evenly arranged around the circumference of the table. The ceramic blanks to be processed are placed upside down on the positioning surface of the supports. The rotary table achieves a fixed-rhythm rotation through an intermittent stepping indexing mechanism, driving the blanks through different processing stations such as rough grinding, fine grinding, and polishing. Each station corresponds to an independently adjustable grinding head unit. Processing operations are carried out simultaneously at each station without interference. Operators only need to complete the blank loading and unloading actions at fixed loading and unloading stations, and the equipment can achieve continuous cyclic operation. The daily production capacity of a single unit far exceeds that of traditional single-station grinding machines, while significantly reducing the equipment's footprint and inter-process turnaround time. It is currently the mainstream equipment for the automation upgrade of the daily-use ceramic blank grinding process.

[0003] In actual production operation, existing rotary ceramic blank grinding machines rely heavily on the vacuum suction cups built into the processing station to fix the blanks. However, these suction cups are constantly exposed to the corrosive environment of ceramic dust and slurry, which can easily lead to aging and wear on the working surface, resulting in weakened vacuum suction. During grinding, the blank rotates at high speed with the support tray. If the suction of the suction cup is insufficient, the blank and the tray are prone to slippage. Under the action of high-speed centrifugal force, the blank will wobble and shift, and in severe cases, it may even fly off the station, resulting in a large amount of waste, equipment impact damage, and safety hazards on site. In addition, the grinding wheels and grinding heads are mostly installed in fixed positions. During grinding, only a local area of ​​the grinding wheel continuously contacts the blank. After long-term operation, uneven wear will occur on the working surface, which may lead to uneven grinding thickness on the bottom of the disc, reduced surface roughness consistency, and shortened grinding wheel life.

[0004] To address the aforementioned issues, innovative design based on existing methods is urgently needed. Summary of the Invention

[0005] The purpose of this invention is to provide a rotary multi-station ceramic blank grinding machine to solve the problems of weakened vacuum suction and uneven wear of grinding wheels and heads mentioned in the background art. The technical solution of this invention addresses the problem that the existing technical solutions are too simplistic and provides a solution that is significantly different from the existing technology.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a rotary multi-station ceramic blank grinding machine, comprising a worktable and a grinding seat, wherein a rotating seat is rotatably mounted on the side wall of the worktable, five sliding seats are fixed on the side wall of the rotating seat, a grinding head unit is provided at the end of the grinding seat, an adjustment component is provided inside the sliding seat, six rotating platforms are rotatably mounted on the surface of the worktable, a processing table is fixed on the top of the rotating platform, an adsorption seat is installed inside the processing table, a suction cup is provided at the end of the adsorption seat, an adsorption component is provided inside the adsorption seat, a sliding sleeve is sleeved on the surface of the rotating platform, and three push rods are fixed on the top of the sliding sleeve;

[0007] The adjustment assembly includes a first drive wheel and a second drive wheel rotatably mounted in the sliding seat, with a first transmission wheel and a second transmission wheel respectively fixed to the bottom of the first drive wheel and the second drive wheel, and also includes a drive rack fixed in the grinding seat;

[0008] It also includes a rotating gear ring rotatably mounted in a rotating seat, and a push block slidably mounted in a rotating seat. The inner wall of the rotating gear ring is provided with a guide groove, and the side wall of the push block is fixed with a drive block.

[0009] Preferably, the grinding seat is slidably mounted on the surface of the sliding seat, and a motor is externally connected to the bottom of the rotating table.

[0010] Preferably, the first drive wheel and the second drive wheel are designed as half-gears, and the drive rack meshes with the first drive wheel and the second drive wheel respectively.

[0011] Preferably, the first transmission wheel meshes with the rotating gear ring, and the first transmission wheel meshes with the second transmission wheel.

[0012] Preferably, the drive block is located in the guide groove, and the guide groove has a wave-shaped design with the ends connected.

[0013] Preferably, the push block is externally connected to an electric push rod, the position of the push block corresponds to the sliding sleeve, and the end of the push rod is in close contact with the bottom of the suction cup.

[0014] Preferably, the adsorption assembly includes a rotating disk fixed inside the adsorption seat, three swing blocks are rotatably mounted on the surface of the rotating disk, three sliding blocks are slidably mounted inside the adsorption seat, and connecting rods are rotatably mounted on the sidewalls of the sliding blocks.

[0015] It also includes a sliding piston that is slidably installed inside the suction cup, and a connecting plate is fixed to the bottom end of the sliding piston.

[0016] Preferably, a return spring is provided on the surface of the rotating disk, and the rotating disk is connected to the throwing block through the return spring.

[0017] Preferably, the two ends of the connecting rod are rotatably connected to a connecting plate and a sliding block, respectively.

[0018] Compared with the prior art, the beneficial effects of the present invention are:

[0019] 1. This invention, through the design of a sliding seat, rotating table, processing table, adsorption seat, and adsorption component, avoids the problem of inconvenience caused by excessive suction during the feeding stage, and provides sufficient clamping force under the high centrifugal conditions of high-speed grinding. It fundamentally avoids the risk of the blank slipping, swaying, and being thrown out, and improves processing stability and finished product qualification rate. After manually fixing the position of the ceramic blank, the vacuum adsorption force is gradually increased adaptively by the adsorption component as the rotating table rotates during the processing, forming an adaptive locking effect where the higher the rotation speed, the stronger the adsorption force, ensuring that the ceramic blank to be processed maintains a stable adsorption state during the processing.

[0020] 2. This invention, through the setting of a sliding sleeve, push rod, grinding seat, and adjustment component, during long-term processing, with each push action of the electric push rod during material feeding, drives the adjustment component to slowly reciprocate and move the grinding head unit set at the top of the grinding seat 7, so that the entire end face of the grinding wheel can evenly contact the bottom of the disc to complete the grinding. This allows the entire end face of the grinding wheel to alternately contact the grinding surface of the disc bottom, extending the service life of the grinding wheel, reducing the frequency of downtime for maintenance and consumable replacement, ensuring the consistency of the grinding thickness of the disc bottom, avoiding processing accuracy deviations caused by uneven grinding of the grinding wheel, and stabilizing the overall processing quality of the entire product line. Attached Figure Description

[0021] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0022] Figure 2 This is a cross-sectional view of the worktable and rotating base of the present invention.

[0023] Figure 3 This is a cross-sectional view of the rotating platform and sliding sleeve of the present invention.

[0024] Figure 4 This is a schematic diagram of the adsorption component of the present invention;

[0025] Figure 5 This is a schematic diagram showing the disassembled structure of the adsorption component of the present invention;

[0026] Figure 6 This is a schematic diagram of the structure of the adjustment component of the present invention;

[0027] Figure 7 This is a partial structural schematic diagram of the adjustment component of the present invention.

[0028] In the diagram: 1. Worktable; 101. Rotary seat; 102. Sliding seat; 2. Rotary table; 201. Machining table; 202. Adsorption seat; 3. Suction cup; 301. Sliding piston; 302. Connecting plate; 303. Connecting rod; 4. Rotary disk; 401. Throwing block; 402. Sliding block; 5. Sliding sleeve; 501. Push rod; 6. Rotating gear ring; 601. Guide groove; 7. Grinding seat; 701. Drive rack; 8. First drive wheel; 801. First transmission wheel; 802. Second drive wheel; 803. Second transmission wheel; 9. Push block; 901. Drive block. Detailed Implementation

[0029] Please see Figures 1-7 The present invention provides a technical solution: a rotary multi-station ceramic blank grinding machine, including a worktable 1 and a grinding seat 7. A rotating seat 101 is rotatably mounted on the side wall of the worktable 1. Five sliding seats 102 are fixed on the side wall of the rotating seat 101. A grinding head unit is provided at the end of the grinding seat 7. An adjustment component is provided inside the sliding seat 102. Six rotating tables 2 are rotatably mounted on the surface of the worktable 1. A processing table 201 is fixed on the top of the rotating table 2. An adsorption seat 202 is installed inside the processing table 201. A suction cup 3 is provided at the end of the adsorption seat 202. An adsorption component is provided inside the adsorption seat 202. A sliding sleeve 5 is sleeved on the surface of the rotating table 2. Three push rods 501 are fixed on the top of the sliding sleeve 5.

[0030] The adjustment assembly includes a first drive wheel 8 and a second drive wheel 802 rotatably mounted in the sliding seat 102. The bottom of the first drive wheel 8 and the second drive wheel 802 are respectively fixed with a first transmission wheel 801 and a second transmission wheel 803. It also includes a drive rack 701 fixed in the grinding seat 7.

[0031] It also includes a rotating gear ring 6 rotatably installed in the rotating seat 101 and a push block 9 slidably installed in the rotating seat 101. The inner wall of the rotating gear ring 6 is provided with a guide groove 601, and the side wall of the push block 9 is fixed with a drive block 901.

[0032] In one embodiment of the present invention, the grinding seat 7 is slidably mounted on the surface of the sliding seat 102. The sliding seat 102 provides guidance and limit for the linear movement of the grinding seat 7, ensuring the stability of the movement of the grinding seat 7. A motor is externally connected to the bottom of the rotating table 2.

[0033] In one embodiment of the present invention, the first drive wheel 8 and the second drive wheel 802 are designed as half gears. The drive rack 701 meshes with the first drive wheel 8 and the second drive wheel 802 respectively. When the toothed section of the first drive wheel 8 meshes with the drive rack 701, it drives the drive rack 701 to translate to one side. When the toothed section of the first drive wheel 8 gradually disengages, the toothed section of the second drive wheel 802, which rotates in the opposite direction, just enters the meshing, driving the drive rack 701 to translate in the opposite direction. The alternating meshing of the first drive wheel 8 and the second drive wheel 802, which rotate synchronously in the opposite direction, can complete the reversal of the drive rack 701.

[0034] In one embodiment of the present invention, the first transmission wheel 801 meshes with the rotating gear ring 6 and the second transmission wheel 803. The rotation of the rotating gear ring 6 provides power to drive the first transmission wheel 801 to rotate. The first transmission wheel 801 meshes with the second transmission wheel 803 to achieve motion output with equal speed and opposite direction, thereby driving the first drive wheel 8 and the second drive wheel 802 to rotate in opposite directions.

[0035] In one embodiment of the present invention, the drive block 901 is located in the guide groove 601, which has a wave-shaped design with the ends connected. When the push block 9 drives the drive block 901 to complete one up-and-down reciprocating motion, the drive block 901 slides along the inclined slope of the guide groove 601, pushing the rotating gear ring 6 to rotate at a small angle and stably output power.

[0036] In one embodiment of the present invention, the push block 9 is externally connected to an electric push rod. The electric push rod serves as an independent power source for the unloading action and can output a stable and controllable linear lifting force. The position of the push block 9 corresponds to that of the sliding sleeve 5. The push block 9 can directly act on the bottom of the sliding sleeve 5, pushing the sliding sleeve 5 to move upward along the rotating table 2. The end of the push rod 501 is in close contact with the bottom of the suction cup 3. The suction cup 3 is made of rubber material with elastic deformation capability. Its bottom area undergoes local deformation after being pushed by the push rod 501, resulting in a gap between the edge of the suction cup 3 and the sealing surface of the bottom of the ceramic blank. Outside air instantly enters the vacuum chamber, and the vacuum adsorption state is immediately released. As the push rod 501 continues to move upward, the pushing force directly acts on the inner bottom surface of the ceramic blank, smoothly lifting the ceramic blank off the surface of the suction cup 3.

[0037] As one embodiment of the present invention, the adsorption assembly includes a rotating disk 4 fixed in the adsorption seat 202, three swing blocks 401 rotatably mounted on the surface of the rotating disk 4, three sliding blocks 402 slidably mounted in the adsorption seat 202, and a connecting rod 303 rotatably mounted on the side wall of the sliding block 402.

[0038] It also includes a sliding piston 301 that is slidably installed in the suction cup 3, and a connecting plate 302 is fixed to the bottom end of the sliding piston 301.

[0039] As one embodiment of the present invention, a reset spring is provided on the surface of the rotating disk 4. The rotating disk 4 is connected to the throwing block 401 through the reset spring. When the grinding process is completed and the work station is switched to the loading and unloading area, the rotation speed of the rotating table 2 is reduced or the machine is stopped. The centrifugal force on the throwing block 401 is weakened. The pre-tightening force of the reset spring can drive the throwing block 401 to automatically reset to the initial position around the axis point, so that the vacuum chamber volume of the suction cup 3 is restored to the initial state and the suction force drops back to the loading level, ensuring the convenience of manual handling of blanks.

[0040] In one embodiment of the present invention, the connecting rod 303 is rotatably connected to the connecting plate 302 and the sliding block 402 at both ends. The sliding block 402 moves horizontally in a straight line along the radial direction of the adsorption seat 202. The connecting rod 303 automatically adjusts its tilt angle with the displacement of the sliding block 402, pulls the connecting plate 302, and drives the sliding piston 301 to make vertical lifting and lowering movements, so as to avoid motion interference.

[0041] Working principle: When using this rotary multi-station ceramic blank grinding machine, the operator first places the ceramic blank to be processed upside down on the suction cup 3 set in the processing table 201 fixed at the end of the rotary table 2 at the loading and unloading station. By applying appropriate downward pressure, the air inside the suction cup 3 is discharged, and the initial vacuum adsorption is formed by the atmospheric pressure difference, which completes the positioning and fixing of the ceramic blank. Then, the worktable 1 drives the rotary table 2 to rotate and switch the station, smoothly switching the station carrying the ceramic blank to the grinding processing area, and officially entering the bottom grinding processing operation process.

[0042] After the rotary table 2 enters the processing station, it is driven by an independent drive motor to rotate the adsorption seat 202 fixed in the processing table 201 on the top of the rotary table 2 at high speed, providing the ceramic blank with rotational motion for grinding. The rotating disk 4 in the adsorption seat 202 maintains synchronous speed with the ceramic blank. During the processing, the rotation speed of the rotary table 2 gradually increases, and the centrifugal force on the swing block 401 mounted on the surface of the rotating disk 4 continuously increases, gradually overcoming the tension of the return spring, and rotating outward around the axis point to increase the rotation area. During the outward swing of the swing block 401, the end pushes against the inner wall of the sliding block 402, pushing the sliding block 402 to slide outward radially along the adsorption seat 202. The sliding block 402 is rotatably connected to the connecting plate 302 through the connecting rod 303. 2. While moving outward, the connecting plate 302 is pulled downward by the connecting rod 303. The connecting rod 303 drives the sliding piston 301 located in the suction cup 3 to move downward synchronously. Since the suction cup 3 and the ceramic blank to be processed have formed a closed vacuum chamber and are in a vacuum adsorption state, after the sliding piston 301 moves downward, the gap between the suction cup 3 and the ceramic blank to be processed increases, while the total amount of air in the chamber remains unchanged. The internal air pressure is further reduced, and the vacuum adsorption force is dynamically enhanced with the increase of rotation speed, forming an adaptive locking effect where the higher the rotation speed, the stronger the adsorption force. This ensures that the ceramic blank to be processed is kept in a stable adsorption state during the processing, and prevents the ceramic blank to be processed from slipping, swaying, or even being thrown out due to centrifugal force, which would affect the processing quality.

[0043] During this process, the spacing between the three swing blocks 401 is less than the effective working length of the sliding block 402. As the swing blocks 401 rotate synchronously with the rotating disk 4, the next swing block 401 has already completed the contact engagement before the previous swing block 401 has left the contact state with the sliding block 402. Throughout the entire transmission process, the sliding block 402 always maintains a continuous contact transmission relationship, avoiding gap collisions between the swing blocks 401 and the sliding block 402, avoiding vibration problems caused by centrifugal rotation, and improving the overall stability of operation.

[0044] After the ceramic blank completes its full rotation on the worktable 1, passing through all the grinding stations in sequence, it returns to the loading and unloading station. At this time, the operator activates the electric push rod. The output end of the electric push rod drives the push block 9 to move upward. The push block 9 acts on the bottom of the sliding sleeve 5, pushing the sliding sleeve 5 upward along the rotating table 2. The push rod 501, which is fixed to the upper end of the sliding sleeve 5, moves upward simultaneously. Its end directly acts on the bottom of the suction cup 3. Since the suction cup 3 is made of rubber with elastic deformation capability, its bottom area undergoes local deformation after being pushed by the push rod 501, resulting in... A gap appears between the edge of the suction cup 3 and the sealing surface of the bottom of the ceramic blank, allowing outside air to enter the vacuum chamber instantly. The vacuum adsorption state is immediately released. As the push rod 501 continues to move upward, the pushing force acts directly on the inner bottom surface of the ceramic blank, smoothly lifting the ceramic blank off the surface of the suction cup 3. There is no need for the operator to manually pick it up, avoiding the problem of blank chipping and breakage caused by uneven force during manual material handling. After the unloading work is completed, the electric push rod retracts, and the push block 9 drives the sliding sleeve 5 and the push rod 501 to reset synchronously, so that the unloading work can be carried out again. This process is repeated to achieve continuous cycle production.

[0045] During this process, the push block 9 drives the drive block 901, which is fixedly connected to the side wall, to move up and down in a synchronous reciprocating motion. The drive block 901 is located between the wave-shaped guide grooves 601 connected end to end. The cooperation between the drive block 901 and the guide groove 601 transforms the vertical linear motion into circumferential torque through the inclined surface of the guide groove 601, driving the rotating gear ring 6 to rotate slowly. The rotating gear ring 6 meshes with the first transmission wheel 801, and the first transmission wheel 801 meshes with the second transmission wheel 803. While the rotating gear ring 6 rotates, the first transmission wheel 801 and the second transmission wheel 803 drive the first drive wheel 8 and the second drive wheel 802, which are fixed on their surfaces, to rotate synchronously in opposite directions. The first drive wheel 8 and the second drive wheel 802 are designed as half gears. The first drive wheel 8 and the second drive wheel 802 alternately mesh with the drive rack 701 set in the grinding seat 7, transforming the rotational motion into the reciprocating linear motion of the drive rack 701.

[0046] During long-term processing, the push block 9 drives the drive block 901 to move up and down repeatedly, driving the rotating gear ring 6 to rotate slowly. Then, through the transmission chain composed of the first transmission wheel 801, the second transmission wheel 803, the first drive wheel 8, and the second drive wheel 802, the drive rack 701 is driven to perform slow reciprocating linear motion. The grinding seat 7 and the drive rack 701 move synchronously. A connecting plate is fixed at the top of the grinding seat 7, and the grinding head unit is mounted on the connecting plate. As the grinding seat 7 moves, it drives the grinding head unit set at its top to slowly move in position, so that the entire end face of the grinding wheel evenly contacts the bottom of the disc to complete the grinding. This achieves uniform wear on the entire working surface of the grinding wheel, extends the service life of the grinding wheel, reduces the frequency of downtime for maintenance and replacement of consumables, ensures the consistency of the grinding thickness at the bottom of the disc, and stabilizes the overall processing quality.

[0047] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any way. Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present invention. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present invention without departing from the scope of the present invention shall still fall within the scope of the present invention.

Claims

1. A rotary multi-station ceramic disc grinding machine, comprising a worktable (1) and a grinding base (7), characterized in that: The worktable (1) has a rotating seat (101) rotatably mounted on its side wall. Five sliding seats (102) are fixed on the side wall of the rotating seat (101). A grinding head unit is provided at the end of the grinding seat (7). An adjustment component is provided inside the sliding seat (102). Six rotating tables (2) are rotatably mounted on the surface of the worktable (1). A processing table (201) is fixed on the top of the rotating table (2). An adsorption seat (202) is installed inside the processing table (201). A suction cup (3) is provided at the end of the adsorption seat (202). An adsorption component is provided inside the adsorption seat (202). A sliding sleeve (5) is sleeved on the surface of the rotating table (2). Three push rods (501) are fixed on the top of the sliding sleeve (5). The adjustment assembly includes a first drive wheel (8) and a second drive wheel (802) rotatably mounted in the sliding seat (102), with a first transmission wheel (801) and a second transmission wheel (803) respectively fixed at the bottom of the first drive wheel (8) and the second drive wheel (802), and also includes a drive rack (701) fixed in the grinding seat (7). It also includes a rotating gear ring (6) rotatably installed in a rotating seat (101) and a push block (9) slidably installed in a rotating seat (101). The inner wall of the rotating gear ring (6) is provided with a guide groove (601), and the side wall of the push block (9) is fixed with a drive block (901). The adsorption assembly includes a rotating disk (4) fixed inside the adsorption seat (202), three swivel blocks (401) are rotatably mounted on the surface of the rotating disk (4), three sliding blocks (402) are slidably mounted inside the adsorption seat (202), and a connecting rod (303) is rotatably mounted on the side wall of the sliding block (402). It also includes a sliding piston (301) that is slidably installed in the suction cup (3), and a connecting plate (302) is fixed at the bottom end of the sliding piston (301).

2. The rotary multi-station ceramic disc grinding machine according to claim 1, characterized in that: The grinding seat (7) is slidably mounted on the surface of the sliding seat (102), and a motor is connected to the bottom of the rotating table (2).

3. The rotary multi-station ceramic disc grinding machine according to claim 1, characterized in that: The first drive wheel (8) and the second drive wheel (802) are designed as half gears, and the drive rack (701) meshes with the first drive wheel (8) and the second drive wheel (802) respectively.

4. A rotary multi-station ceramic disc grinding machine according to claim 1, characterized in that: The first transmission wheel (801) meshes with the rotating gear ring (6), and the first transmission wheel (801) meshes with the second transmission wheel (803).

5. A rotary multi-station ceramic disc grinding machine according to claim 1, characterized in that: The drive block (901) is located in the guide groove (601), which has a wave-shaped design with the ends connected.

6. A rotary multi-station ceramic disc grinding machine according to claim 1, characterized in that: The push block (9) is connected to an electric push rod. The position of the push block (9) corresponds to that of the sliding sleeve (5). The end of the push rod (501) is close to the bottom of the suction cup (3).

7. A rotary multi-station ceramic disc grinding machine according to claim 1, characterized in that: The rotating disk (4) is provided with a reset spring on its surface, and the rotating disk (4) is connected to the swing block (401) through the reset spring.

8. A rotary multi-station ceramic disc grinding machine according to claim 7, characterized in that: The connecting rod (303) is rotatably connected to a connecting plate (302) and a sliding block (402) at both ends.

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