Precise laser cutting machine for ceramic products

Abstract

The utility model relates to the field of ceramic cutting, in particular to a ceramic product precision laser cutting machine which comprises a cutting table, first lead screw motors are embedded in the two sides of the cutting table, a sliding frame connected in a sliding mode is further arranged above the cutting table, and an L-shaped frame connected in a sliding mode is arranged above the sliding frame. A laser cutting head is fixedly mounted on one side of the L-shaped frame through a bolt, and a placing plate is further fixedly mounted above the cutting table through a bolt; the rotating disc is matched with the stepping motor and the straight gear transmission structure, multi-angle positioning and steering of the ceramic workpiece are achieved, the ceramic workpiece is flexibly clamped in the middle through the synchronous two-way clamping plate mechanism and the baffle, and the cut ceramic workpiece is discharged through the synergistic effect of the electric push rod and the push plate in combination with the belt conveyor. Therefore, the whole process operation from positioning clamping, laser cutting to automatic discharging is achieved, the machining safety of the ultrathin ceramic part is improved, and the cleanliness of the machining environment is guaranteed through a smoke suction and dust removal device.

Description

Technical Field

[0001] This utility model relates to the field of ceramic cutting, and in particular to a precision laser cutting machine for ceramic products. Background Technology

[0002] As a key link in precision manufacturing, ceramic cutting technology has been developed due to the need to process high-hardness and high-brittleness materials (such as alumina and silicon nitride). Although traditional mechanical cutting (such as diamond tools) can achieve an accuracy of ±0.05mm, there is a risk of stress damage. Laser cutting technology, through non-contact processing, controls the heat-affected zone to within 10μm, making it particularly suitable for aerospace ceramic components.

[0003] Chinese utility model patent discloses a guide rail assembly for a ceramic laser cutting machine (application number: 2024205826835). This application utilizes moving wheels and track grooves to make the guide table move more smoothly. By pulling the crossbar, the position of the laser cutting head can be adjusted, which is convenient for cutting different parts of the ceramic. By rotating the clamping block, the clamping surface of the clamping block can be adjusted, which is beneficial for fixing ceramics of different shapes and improves the practicality of the equipment.

[0004] However, the above-mentioned application still has technical limitations in use: the device is difficult to automate material unloading, and the operation mode of relying on manual unloading not only restricts production efficiency, but also increases the risk of breakage of ultra-thin ceramic parts (usually ≤3mm) during the transfer process; in addition, the clamping mechanism in the application adopts a rigid contact mechanical clamping block design, which is prone to local stress concentration when fixing highly brittle ceramic workpieces. Especially when the clamping force is not controlled properly, it is easy to cause micro-cracks or even structural failure, thus affecting the yield performance of laser cutting process in the field of ultra-precision ceramic processing. Especially in the context of the aerospace field where the surface integrity of ceramic parts is required to be strictly maintained, the room for improvement of the existing clamping solution needs to be expanded.

[0005] To address the aforementioned technical shortcomings, a solution is proposed. Utility Model Content

[0006] The purpose of this utility model is to provide a precision laser cutting machine for ceramic products to solve the aforementioned technical defects.

[0007] The objective of this utility model can be achieved through the following technical solutions:

[0008] A precision laser cutting machine for ceramic products includes a cutting table, with a lead screw motor embedded in both sides of the cutting table, a sliding frame slidably connected above the cutting table, an L-frame slidably connected above the sliding frame, and a laser cutting head fixedly mounted on one side of the L-frame by bolts.

[0009] A placement plate is fixedly installed above the cutting table by bolts. A rotating disk with a rotatable connection is embedded inside the placement plate. A lead screw motor is embedded inside the rotating disk. A bidirectional lead screw is fixed at the end of the drive shaft of the lead screw motor. A belt conveyor is also placed on one side of the cutting table.

[0010] Preferably, a ball screw is fixedly provided at the end of the drive shaft of the lead screw motor, and a lead screw nut is fixedly provided at both ends of the sliding frame. The lead screw nuts below the sliding frame are threadedly connected to the ball screw.

[0011] Preferably, a second lead screw motor is fixedly installed above the sliding frame by bolts. The drive shaft of the second lead screw motor is fixedly connected to a second ball screw. A lead screw nut is fixedly installed below one end of the L-frame. The lead screw nut below the L-frame is threadedly connected to the second ball screw. An electric push rod is also fixedly installed above the sliding frame by bolts. The drive shaft of the electric push rod passes through the sliding frame and is fixedly provided with a push plate.

[0012] Preferably, a smoke extractor is bolted to the top of the placement plates on both sides of the rotating disk, an exhaust pipe is installed at the air outlet at one end of the smoke extractor, and a stepper motor is bolted to the top of the placement plate.

[0013] The drive shaft of the stepper motor extends into the placement plate and is fixedly equipped with a spur gear. The outer side of the rotating disk is also provided with a fixedly connected external gear ring, which meshes with the spur gear.

[0014] Preferably, the outer side of the bidirectional lead screw is provided with symmetrically distributed lead screw nuts, and each lead screw nut on the outer side of the bidirectional lead screw is provided with a fixedly connected clamping plate 1. A slidingly fitted clamping plate 2 is provided on one side of the clamping plate 1, and symmetrically distributed telescopic springs are provided between the clamping plate 2 and the clamping plate 1.

[0015] Preferably, a limiting rod is sleeved inside the telescopic spring, the limiting rod is fixedly connected to the second clamping plate and slidably connected to the first clamping plate, and an electric push rod two is fixedly connected inside the rotating disk, and a stop plate is fixedly provided at the end of the drive shaft of the electric push rod two.

[0016] The beneficial effects of this utility model are as follows:

[0017] This invention achieves multi-angle positioning and steering of ceramic workpieces by setting up a rotating disk in conjunction with a stepper motor and spur gear transmission structure. It adopts a synchronous bidirectional clamping plate mechanism combined with baffles to achieve centered flexible clamping and effectively disperse clamping stress. Through the synergistic action of electric push rod and push plate, combined with belt conveyor, the cut ceramic workpieces are unloaded, thus realizing the whole process operation from positioning and clamping, laser cutting to automatic unloading, thereby improving the processing safety of ultra-thin ceramic parts. It also ensures the cleanliness of the processing environment through a smoke extraction and dust removal device. Attached Figure Description

[0018] The present invention will be further described below with reference to the accompanying drawings;

[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 connection structure between the cutting table and the sliding frame in this utility model;

[0021] Figure 3 This is a schematic diagram of the connection structure between the sliding frame, the laser cutting head, and the push plate in this utility model;

[0022] Figure 4 This is a schematic diagram of the connection structure between the placement plate and the smoking machine in this utility model;

[0023] Figure 5 This is a schematic diagram of the connection structure between the rotating disk and the stepper motor in this utility model;

[0024] Figure 6 This is a schematic diagram of the connection structure between the clamping plate 2 and the stop plate in this utility model.

[0025] Legend: 1. Cutting table; 11. Lead screw motor one; 12. Ball screw one; 13. Sliding frame; 14. Lead screw motor two; 15. Ball screw two; 16. Electric push rod one; 17. Push plate; 18. L-frame; 19. Laser cutting head; 20. Placement plate; 21. Smoke extraction machine; 22. Exhaust pipe; 23. Rotary disk; 24. Stepper motor; 25. Spur gear; 26. External gear ring; 27. Bidirectional lead screw; 28. Clamping plate one; 29. ​​Clamping plate two; 30. Telescopic spring; 31. Limiting rod; 32. Electric push rod two; 33. Stop plate; 4. Belt conveyor. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] Example 1:

[0028] Please see Figure 1 - Figure 6 As shown, this utility model is a precision laser cutting machine for ceramic products, including a cutting table 1. A lead screw motor 11 is embedded inside both sides of the cutting table 1. A ball screw 12 is fixedly mounted at the end of the drive shaft of the lead screw motor 11. A sliding frame 13 is also provided above the cutting table 1, with lead screw nuts fixedly mounted at both ends of the sliding frame 13. The lead screw nuts below the sliding frame 13 are threadedly connected to the ball screw 12. When the lead screw motor 11 starts, it drives the ball screw 12 to rotate, and the ball screw 12 drives the sliding frame 13 to move horizontally on the cutting table 1.

[0029] A second lead screw motor 14 is bolted to the top of the sliding frame 13. A second ball screw 15 is fixedly connected to the end of the drive shaft of the second lead screw motor 14. An L-frame 18 is slidably connected to the top of the sliding frame 13. A lead screw nut is fixedly installed at the bottom of one end of the L-frame 18. The lead screw nut at the bottom of the L-frame 18 is threadedly connected to the second ball screw 15. When the second lead screw motor 14 starts, it drives the second ball screw 15 to rotate. When the second ball screw 15 rotates, it drives the L-frame 18 to move horizontally above the sliding frame 13. A laser cutting head 19 is bolted to one side of the L-frame 18. An electric push rod 16 is also bolted to the top of the sliding frame 13. A push plate 17 is fixedly installed after the drive shaft of the electric push rod 16 passes through the sliding frame 13.

[0030] Above the cutting table 1, a placement plate 20 is fixedly installed by bolts. Inside the placement plate 20, a rotating disk 23 is rotatably connected. On both sides of the placement plate 20, a smoke extractor 21 is fixedly installed by bolts. An exhaust pipe 22 is installed at the air outlet of one end of the smoke extractor 21. The other end of the exhaust pipe 22 is connected to an external exhaust gas treatment mechanism. Above the placement plate 20, a stepper motor 24 is fixedly installed by bolts. The drive shaft of the stepper motor 24 extends into the placement plate 20 and a spur gear 25 is fixedly installed. On the outside of the rotating disk 23, an external gear ring 26 is fixedly connected. The external gear ring 26 meshes with the spur gear 25. When the stepper motor 24 starts, it drives the spur gear 25 to rotate. The spur gear 25 drives the electric push rod 16 and the rotating disk 23 inside it to rotate.

[0031] The rotating disk 23 is equipped with a lead screw motor 3. The drive shaft of the lead screw motor 3 is fixedly equipped with a bidirectional lead screw 27. The outer side of the bidirectional lead screw 27 is equipped with symmetrically distributed lead screw nuts. Above the lead screw nuts on the outer side of the bidirectional lead screw 27, there is a fixedly connected clamping plate 28. One side of the clamping plate 28 is equipped with a slidingly fitted clamping plate 29. Between the clamping plate 29 and the clamping plate 28, there are symmetrically distributed telescopic springs 30. The telescopic springs 30 are fitted with a limiting rod 31. The limiting rod 31 is fixedly connected to the clamping plate 29 and slidably connected to the clamping plate 28. The rotating disk 23 is also equipped with a fixedly connected electric push rod 32. The drive shaft of the electric push rod 32 is fixedly equipped with a stop plate 33. A belt conveyor 4 is also placed on one side of the cutting table 1.

[0032] The working process and principle of this utility model are as follows:

[0033] When using, first restore the device to its original position as follows. Figure 1 As shown, the ceramic product to be cut is then placed above the rotating disk 23, with one end of the ceramic product abutting against one side of the stop plate 33 and in contact with the stop plate 33. Then the lead screw motor 3 is started. When the lead screw motor 3 is started, it drives the two clamping plates 1 28 to move inward synchronously. The clamping plates 1 28 drive the clamping plates 29 to move inward synchronously, thereby clamping the ceramic product on the rotating disk 23 in the center.

[0034] After clamping, the laser cutting head 19 can be started to cut the ceramic product. The fume extraction machine 21 can be started to remove the smoke and dust generated during cutting. The lead screw motor 11 and lead screw motor 24 can be started to realize the four-way movement of the laser cutting head 19. The stepper motor 24 can drive the rotating disk 23 to rotate through the spur gear 25 and the external gear ring 26, thereby adjusting the orientation of the ceramic product. After the ceramic product is cut, the stepper motor 24 can be started again to restore the rotating disk 23 to its original position. Figure 1 At the angle shown, the electric push rod 32 is then activated to lower the stop plate 33 to be flush with the rotating disk 23. The screw motor 3 is then activated to move the two clamping plates 28 away from the sides, thereby releasing the clamping of the ceramic product.

[0035] Then, the electric push rod 16 is started to move the push plate 17 down until the push plate 17 reaches one side of the ceramic product. Then, the screw motor 11 is started to move the sliding frame 13, thereby moving the push plate 17, and then moving the ceramic product cut on the rotating disk 23 to the belt conveyor 4 for unloading.

[0036] In the description of this specification, references to terms such as "an embodiment," "example," and "specific example" indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0037] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to any specific implementation. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A precision laser cutting machine for ceramic articles, comprising a cutting table (1), characterized in that, The both sides of the cutting table (1) are internally embedded with lead screw motor one (11), the upper side of the cutting table (1) is also provided with sliding connection sliding frame (13), the upper side of the sliding frame (13) is provided with sliding connection L frame (18), one side of the L frame (18) is fixedly installed with laser cutting head (19) through bolts. The upper side of the cutting table (1) is also fixedly installed with placing plate (20) through bolts, the inside of the placing plate (20) is embedded with rotating connection rotating disc (23), the inside of the rotating disc (23) is embedded with lead screw motor three, the driving shaft end of the lead screw motor three is fixedly provided with bidirectional lead screw (27), one side of the cutting table (1) is also placed with belt conveyor (4).

2. The precision laser cutting machine for ceramic articles according to claim 1, characterized in that, The driving shaft end of the lead screw motor one (11) is fixedly provided with ball screw one (12), the both ends of the sliding frame (13) are fixedly provided with lead screw nut, the lead screw nut below the sliding frame (13) is threadedly connected with the ball screw one (12).

3. The precision laser cutting machine for ceramic articles according to claim 1, characterized in that, The upper side of the sliding frame (13) is fixedly installed with lead screw motor two (14) through bolts, the driving shaft end of the lead screw motor two (14) is provided with fixed connection ball screw two (15), one end below the L frame (18) is fixedly installed with lead screw nut, the lead screw nut below the L frame (18) is threadedly connected with the ball screw two (15), the upper side of the sliding frame (13) is also fixedly installed with electric push rod one (16) through bolts, the driving shaft of the electric push rod one (16) is fixedly provided with push plate (17) after penetrating the sliding frame (13).

4. The precision laser cutting machine for ceramic articles according to claim 1, characterized in that, The upper side of the placing plate (20) on the both sides of the rotating disc (23) is fixedly installed with smoke extractor (21) through bolts, the air outlet of one end of the smoke extractor (21) is installed with exhaust pipe (22), the upper side of the placing plate (20) is also fixedly provided with step motor (24) through bolts; The driving shaft of the step motor (24) is fixedly provided with straight gear (25) after penetrating into the placing plate (20), the outside of the rotating disc (23) is also provided with fixed connection outer gear ring (26), the outer gear ring (26) is engaged with the straight gear (25).

5. The precision laser cutting machine for ceramic articles according to claim 1, characterized in that, The outside of the bidirectional lead screw (27) is provided with symmetrically distributed lead screw nut, the upper side of the lead screw nut outside the bidirectional lead screw (27) is fixedly provided with clamping plate one (28), one side of the clamping plate one (28) is provided with sliding fit clamping plate two (29), the clamping plate two (29) and the clamping plate one (28) are provided with symmetrically distributed expansion spring (30).

6. The precision laser cutting machine for ceramic articles according to claim 5, characterized in that, The inside of the expansion spring (30) is sleeved with limiting rod (31), the limiting rod (31) is fixedly connected with the clamping plate two (29) and slidingly connected with the clamping plate one (28), the inside of the rotating disc (23) is also embedded with fixed connection electric push rod two (32), the driving shaft end of the electric push rod two (32) is fixedly provided with stop plate (33).

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