A silicon nitride ceramic substrate production fixing device

Abstract

The application belongs to the technical field of silicon nitride ceramic production, in particular to a silicon nitride ceramic substrate production fixing device, which comprises: a machine table; the top of the machine table is fixedly connected with a back plate, and the top of the back plate is fixedly connected with a top plate; the silicon nitride ceramic substrate production fixing device further comprises: a fixing mechanism, the bottom of the fixing mechanism is fixedly connected with the central shaft at the top of the machine table, and a feeding mechanism, the outer wall of the feeding mechanism is fixedly connected with the outer surface of the back plate; the fixing mechanism is arranged to keep the silicon nitride ceramic substrate stable during cutting, so that the cutting surface is more uniform; the protection assembly cleans the surface of the silicon nitride ceramic substrate and blocks the splashing of water flow, reducing the contact between the surface of the equipment and water, so that the completed ring can be placed on the buffer assembly and then be washed by water again, and finally be collected by the staff uniformly, without collecting after each cutting, thereby reducing the workload.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of silicon nitride ceramic production, in particular to a silicon nitride ceramic substrate production fixing device. BACKGROUND

[0002] Silicon nitride is an important structural ceramic material and an ultra-hard substance. Due to its lubricity, wear resistance, atomic crystal, high-temperature oxidation resistance, and cold and hot impact resistance, it is often used to manufacture mechanical components such as bearings, turbine blades, mechanical seal rings, and permanent molds.

[0003] When cutting the silicon nitride ceramic substrate ring, the existing silicon nitride ceramic substrate has size differences, which makes the fixing not firm enough, and the cut ring needs to be manually removed, which is prone to danger. SUMMARY

[0004] In view of the deficiencies of the prior art, the technical scheme adopted by the application to solve the technical problems is: a silicon nitride ceramic substrate production fixing device, comprising: a machine table; a back plate fixedly connected to the top of the machine table, and a top plate fixedly connected to the top of the back plate;

[0005] The silicon nitride ceramic substrate production fixing device further comprises:

[0006] A fixing mechanism is fixedly connected to the top of the machine table at the center axis of the machine table;

[0007] The fixing mechanism comprises a lifting platform, a rotating seat is rotatably connected to the top of the lifting platform, a buffer assembly is uniformly arranged on the outer wall of the rotating seat, the buffer assembly is slidably connected to the top of the machine table at the end away from the rotating seat, and a protection assembly is rotatably connected to the top of the buffer assembly;

[0008] An upper feeding mechanism is fixedly connected to the outer surface of the back plate;

[0009] The upper feeding mechanism comprises a hydraulic column, the outer wall of the hydraulic column is fixedly connected to the outer surface of the back plate, a cross rod is fixedly connected to the end of the hydraulic column away from the back plate, a connecting rod is symmetrically arranged on the side of the cross rod close to the back plate, and a clamping assembly is fixedly connected to the end of the connecting rod away from the cross rod.

[0010] Further, the bottom of the top plate is fixedly connected with a cutting mechanism, the outer surface of the buffer assembly is slidably connected to the inner wall of the rotating seat, the side of the cross rod close to the back plate is fixedly connected to the outer wall of the connecting rod, and the outer surface of the connecting rod is sleeved.

[0011] Furthermore, the cutting mechanism includes a hydraulic rod, the top of which is fixedly connected to the bottom of the top plate, a mounting plate rotatably connected to the bottom of the hydraulic rod, a suction cup rotatably connected to the bottom of the mounting plate, and a cutting blade slidably connected to the bottom of the mounting plate away from the suction cup.

[0012] Furthermore, the feeding mechanism also includes a chute, the top of which is fixedly connected to the top of the inner wall of the back plate. Two chutes are symmetrically arranged, and extrusion rollers are evenly arranged on the inner wall of the chute. The outer wall of the extrusion rollers is slidably connected to the inner wall of the chute. The end of the chute away from the crossbar contacts the outer wall of the clamping assembly. During the approach process, the clamping assembly pushes the previously cut and remaining circular piece off the fixing mechanism, and then places and fixes the silicon nitride ceramic substrate. This avoids the need for manual feeding, which requires approaching the cutting blade and is difficult to remove the silicon nitride ceramic substrate from the middle of the machine. It saves manual labor and improves the loading and unloading speed.

[0013] Furthermore, the fixing mechanism also includes telescopic rods, which are evenly arranged on the outer wall of the rotary table. A baffle is rotatably connected to the end of the telescopic rod away from the rotary table to maintain the stability of the silicon nitride ceramic substrate during cutting, making the cut surface more neat. The protective component cleans the surface of the silicon nitride ceramic substrate and blocks water splashes, reducing the contact between the equipment surface and water. This allows the cut rings to be placed on the buffer component and rinsed with water again before being collected by the staff. This eliminates the need to collect them after each cut, reducing workload.

[0014] Furthermore, the clamping assembly includes a mounting block, the outer wall of which contacts the end of the slide groove away from the crossbar, the outer wall of which is fixedly connected to the end of the connecting rod away from the crossbar, a rubber block fixedly connected to the inner wall of the mounting block, an electric push rod fixedly connected to the bottom of the mounting block, a brush rod fixedly connected to the bottom of the electric push rod, and brackets symmetrically arranged on the side of the mounting block near the crossbar. The outer wall of the brackets is rotatably connected to the outer wall of the mounting block. The brush rod sweeps the circular piece left after the previous cut off from the rotating seat, thus completing the automatic loading and unloading, reducing the time of manual contact with the cutting blade, and realizing automated loading and unloading of silicon nitride ceramic substrates, improving safety.

[0015] Furthermore, the buffer assembly includes six movable columns evenly arranged. A slide rail is evenly provided on the top of the machine platform. The inner wall of the slide rail is slidably connected to the bottom of the movable column. A connecting block is fixedly connected to the top of the movable column. Locking rods are symmetrically arranged on the outer wall of the connecting block. The outer wall of the locking rod is rotatably connected to the outer surface of the connecting block. A support rod is provided at the end of the locking rod away from the movable column. The end of the support rod away from the rotating table is engaged with the outer wall of the locking rod. The end of the support rod away from the locking rod is slidably connected to the bottom of the rotating table, allowing the ring to fall into a groove on the top of the machine platform for storage. After a batch is processed, the rings are retrieved by workers, reducing the unloading work for workers, keeping the ring surface clean, and reducing dust retention.

[0016] Furthermore, the protective component includes an arc-shaped rod, the bottom of which is rotatably connected to the top of the connecting block. Symmetrically arranged baffles are provided on the outer wall of the arc-shaped rod, and the outer wall of the baffles is rotatably connected to the outer wall of the arc-shaped rod. A bent rod is symmetrically arranged at the end of the arc-shaped rod away from the baffle, and the outer wall of the bent rod is rotatably connected to the outer wall of the arc-shaped rod. A pressing strip is rotatably connected to the bottom of the bent rod, and an elastic rod is fixedly connected to the opposite side of the pressing strip to maintain stability during cutting. This prevents severe vibrations caused by insufficient fixing due to the excessive hardness of the silicon nitride ceramic substrate during cutting, which could result in uneven cut edges and waste of raw materials.

[0017] The beneficial effects of this invention are as follows:

[0018] 1. Existing silicon nitride ceramic substrates vary in size, resulting in insufficient fixation. Cut rings require manual removal, which is dangerous. This invention addresses this by setting up a fixing mechanism to maintain the stability of the silicon nitride ceramic substrate during cutting, resulting in a cleaner cut surface. The protective component cleans the surface of the silicon nitride ceramic substrate and blocks water splashes, reducing contact between the equipment surface and water. The cut rings can then be placed on the buffer component for further rinsing before being collected by staff. This eliminates the need for collection after each cut, reducing workload.

[0019] 2. When cutting silicon nitride ceramic substrates, manual loading is usually performed. Due to the weight of the silicon nitride ceramic substrate, manual loading is not stable and can easily scratch the surface of the equipment. This invention sets up a loading mechanism that, during the approach process, the clamping component pushes the previously cut and remaining circular piece off the fixing mechanism, and then places and fixes the silicon nitride ceramic substrate. This avoids the difficulty of manually loading the substrate by getting close to the cutting blade and taking it out from the middle of the machine, thus saving labor and increasing the loading and unloading speed.

[0020] 3. During cutting, the remaining material and finished product are usually removed by the staff after cutting. At this time, the equipment is in the running state, which is dangerous for the staff. The present invention sets up a buffer component so that the ring falls into the groove on the top of the machine and can be stored. After a batch is processed, the staff can take them out at the same time, which reduces the staff's unloading work, keeps the surface of the ring clean and reduces dust retention.

[0021] 4. When cutting silicon nitride ceramic substrates, the different sizes make it impossible to ensure stable fixing of the cutting disc. This invention sets up protective components to keep the silicon nitride ceramic substrate pressed and fixed in multiple directions, so as to keep it stable during cutting. This avoids the situation where the silicon nitride ceramic substrate is too hard and the fixing is not tight enough, which will cause violent vibration during cutting, resulting in uneven cut edges and wasting raw materials. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the structure of the present invention;

[0023] Figure 2 This is a rear view of the present invention;

[0024] Figure 3 This is a schematic diagram of the cutting mechanism of the present invention;

[0025] Figure 4 This is a schematic diagram of the feeding mechanism of the present invention;

[0026] Figure 5 This is a schematic diagram of the fixing mechanism of the present invention;

[0027] Figure 6 This is a partial structural schematic diagram of the fixing mechanism of the present invention;

[0028] Figure 7 This is a schematic diagram of the structure of the clamping component of the present invention;

[0029] Figure 8 This is a schematic diagram of the structure of the protective component of the present invention;

[0030] Figure 9 This is a schematic diagram of the structure of the buffer component of the present invention.

[0031] In the diagram: 1. Machine base; 2. Back plate; 3. Top plate; 4. Feeding mechanism; 401. Hydraulic column; 402. Crossbar; 403. Connecting rod; 404. Clamping assembly; 4041. Mounting block; 4042. Rubber block; 4043. Electric actuator; 4044. Brush rod; 4045. Bracket; 405. Slide groove; 406. Extrusion wheel; 5. Cutting mechanism; 501. Hydraulic rod; 502. Mounting plate; 503. Cutting blade; 5 04. Suction cup; 6. Fixing mechanism; 601. Lifting platform; 602. Rotating seat; 603. Buffer assembly; 6031. Slide rail; 6032. Moving column; 6033. Connecting block; 6034. Locking rod; 6035. Support rod; 604. Telescopic rod; 605. Baffle plate; 606. Protective assembly; 6061. Arc rod; 6062. Baffle plate; 6063. Bent rod; 6064. Pressing strip; 6065. Elastic rod. Detailed Implementation

[0032] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments. The embodiments of the present invention are given for illustrative and descriptive purposes only, and are not intended to be exhaustive or to limit the invention to the forms disclosed. Many modifications and variations will be apparent to those skilled in the art. The embodiments were chosen and described to better illustrate the principles and practical application of the invention, and to enable those skilled in the art to understand the invention and design various embodiments with various modifications suitable for a particular purpose.

[0033] Example 1, please refer to Figures 1-6 The present invention provides a technical solution: a silicon nitride ceramic substrate production fixing device, which is described below.

[0034] Includes: machine base 1; a back plate 2 is fixedly connected to the top of machine base 1, and a top plate 3 is fixedly connected to the top of back plate 2;

[0035] The silicon nitride ceramic substrate production fixture also includes:

[0036] The bottom of the fixing mechanism 6 is fixedly connected to the central axis at the top of the machine base 1;

[0037] The fixed mechanism 6 includes a lifting platform 601, a rotating seat 602 is rotatably connected to the top of the lifting platform 601, buffer components 603 are evenly arranged on the outer wall of the rotating seat 602, the end of the buffer component 603 away from the rotating seat 602 is slidably connected to the top of the machine base 1, and a protective component 606 is rotatably connected to the top of the buffer component 603.

[0038] The outer wall of the feeding mechanism 4 is fixedly connected to the outer surface of the back plate 2;

[0039] The feeding mechanism 4 includes a hydraulic column 401. The outer wall of the hydraulic column 401 is fixedly connected to the outer surface of the back plate 2. A crossbar 402 is fixedly connected to the end of the hydraulic column 401 away from the back plate 2. A connecting rod 403 is symmetrically arranged on the side of the crossbar 402 close to the back plate 2. A clamping assembly 404 is fixedly connected to the end of the connecting rod 403 away from the crossbar 402.

[0040] A cutting mechanism 5 is fixedly connected to the bottom of the top plate 3. The cutting mechanism 5 is connected to an external water source to cool the blade and silicon nitride ceramic substrate during cutting and to wash away the dust and debris generated during cutting. The outer surface of the buffer assembly 603 is slidably connected to the inner wall of the rotating seat 602. The side of the crossbar 402 near the back plate 2 is fixedly connected to the outer wall of the connecting rod 403, and the outer surface of the connecting rod 403 is sleeved together.

[0041] During operation, the operator places a circular silicon nitride ceramic substrate on the feeding mechanism 4. The feeding mechanism 4 places the silicon nitride ceramic substrate inside the fixing mechanism 6, which then fixes it in the center. The position of the cutting mechanism 5 is then adjusted so that it cuts the silicon nitride ceramic ring off the silicon nitride ceramic substrate. The cut ring is then hung on the buffer component 603 for collection. The protective component 606 blocks splashing water, reducing the contact between the equipment surface and water. After cutting, the feeding mechanism 4 removes the remaining circular pieces from the fixing mechanism 6, and then places the next silicon nitride ceramic substrate on the fixing mechanism 6.

[0042] The cutting mechanism 5 includes a hydraulic rod 501. The top of the hydraulic rod 501 is fixedly connected to the bottom of the top plate 3. The bottom of the hydraulic rod 501 is rotatably connected to a mounting plate 502. The bottom of the mounting plate 502 is rotatably connected to a suction cup 504. A cutting blade 503 is slidably connected to the bottom of the mounting plate 502 away from the suction cup 504. Before cutting, the cutting blade 503 is installed in a suitable position. The distance between the cutting blade 503 and the suction cup 504 is the diameter of the remaining circular piece after cutting, thereby determining the size of the cutting ring.

[0043] Initially, after the cutting blade 503 is installed and fixed, the silicon nitride ceramic substrate is secured. Then, the hydraulic rod 501 drives the cutting blade 503 downward, and the suction cup 504 picks up the middle of the silicon nitride ceramic substrate and presses it down. Under the drive of the mounting plate 502, the substrate rotates and cuts. After the cutting is completed, the disc is released by the suction cup 504 and pushed away by the feeding mechanism 4 to continue placing the next silicon nitride ceramic substrate.

[0044] The feeding mechanism 4 also includes a chute 405. The top of the chute 405 is fixedly connected to the top of the inner wall of the back plate 2. Two chute 405s are symmetrically arranged. The inner wall of the chute 405 is evenly provided with extrusion rollers 406. The extrusion rollers 406 are made of elastic material. The outer wall of the extrusion rollers 406 is slidably connected to the inner wall of the chute 405. The end of the chute 405 away from the crossbar 402 is in contact with the outer wall of the clamping assembly 404.

[0045] During operation, the operator inserts the silicon nitride ceramic substrate into the slide groove 405. The extrusion roller 406 clamps the silicon nitride ceramic substrate in the slide groove 405 and holds it inside the clamping assembly 404. Then, the hydraulic column 401 drives the connecting rod 403 to move, causing the clamping assembly 404 to move the silicon nitride ceramic substrate closer to the fixing mechanism 6 and place it on top of the fixing mechanism 6 for fixation. During the approach process, the clamping assembly 404 pushes the remaining round piece from the fixing mechanism 6 after the previous one has been cut, and then places and fixes the silicon nitride ceramic substrate. This avoids the need for manual feeding, which requires close proximity to the cutting blade 503 and is difficult to remove from the middle of the machine 1, thus saving labor and increasing the loading and unloading speed.

[0046] The fixing mechanism 6 also includes a telescopic rod 604, which is evenly distributed on the outer wall of the rotating table. A baffle 605 is rotatably connected to the end of the telescopic rod 604 away from the rotating table. The baffle 605 is made of rubber.

[0047] After adjusting the position of the buffer assembly 603 and placing the silicon nitride ceramic substrate on the rotating base 602, the telescopic rod 604 drives the baffle 605 to extend outward. Then, the baffle 605 rotates 180 degrees to encircle the edge of the silicon nitride ceramic substrate and simultaneously retracts inward. Next, the protective assembly 606 rotates closer to the silicon nitride ceramic substrate, pressing it down. The baffle 605 then rotates back to its initial position, adjusting and fixing the silicon nitride ceramic substrate to the center of the rotating base 602. This ensures that the buffer assembly 603 does not obstruct the cutting blade 503 during cutting. During the cutting process, each set of protective components 606 opens sequentially, leaving the cutting position open. After the cutting is completed, the components are pressed back onto the surface of the silicon nitride ceramic substrate to maintain the stability of the silicon nitride ceramic substrate during cutting, making the cut surface neater. The protective components 606 clean the surface of the silicon nitride ceramic substrate and block water splashes, reducing the contact between the equipment surface and water. This allows the cut rings to be placed on the buffer components 603 and rinsed with water again. Finally, they are collected by the staff, eliminating the need to collect them after each cut, thus reducing workload.

[0048] Example 2, please refer to Figures 1-9The present invention provides a technical solution: Based on Embodiment 1, the clamping assembly 404 includes a mounting block 4041. The outer wall of the mounting block 4041 contacts the end of the slide groove 405 away from the crossbar 402. The outer wall of the mounting block 4041 is fixedly connected to the end of the connecting rod 403 away from the crossbar 402. A rubber block 4042 is fixedly connected to the inner wall of the mounting block 4041. An electric push rod 4043 is fixedly connected to the bottom of the mounting block 4041. A brush rod 4044 is fixedly connected to the bottom of the electric push rod 4043. The electric push rod 4043 drives the bottom of the brush rod 4044 to contact the top of the rotating table. A bracket 4045 is symmetrically arranged on the side of the mounting block 4041 near the crossbar 402. The outer wall of the bracket 4045 is rotatably connected to the outer wall of the mounting block 4041.

[0049] During operation, the operator inserts silicon nitride ceramic substrates sequentially into the slide groove 405, inserting both ends of the innermost silicon nitride ceramic substrate into the rubber block 4042. When loading is required, the hydraulic column 401 drives the connecting rod 403 to move inward, causing the mounting block 4041 to move the silicon nitride ceramic substrate and pull it out of the slide groove 405. At this time, the bottom of the silicon nitride ceramic substrate contacts the support 4045. When it approaches the rotary table, the support 4045 rotates, causing the silicon nitride ceramic substrate to fall onto the rotating seat 602, completing the loading. At the same time as loading, the mounting block 4041 drives the brush rod 4044 to sweep the remaining round pieces after the previous cut off from the rotating seat 602, thus completing the automatic loading and unloading, reducing the time that the operator has to contact the cutting blade 503, and realizing the automated loading and unloading of silicon nitride ceramic substrates, improving safety.

[0050] The buffer assembly 603 includes movable columns 6032, with alternating movable columns 6032 and telescopic rods 604. Six movable columns 6032 are evenly arranged. Slide tracks 6031 are evenly provided on the top of the machine base 1. The inner wall of the slide track 6031 is slidably connected to the bottom of the movable column 6032. A connecting block 6033 is fixedly connected to the top of the movable column 6032. Locking rods 6034 are symmetrically arranged on the outer wall of the connecting block 6033. The outer wall of the locking rod 6034 is rotatably connected to the outer surface of the connecting block 6033. Next, a support rod 6035 is provided at the end of the locking rod 6034 away from the moving column 6032. The end of the support rod 6035 away from the rotary table is engaged with the outer wall of the locking rod 6034. The direction of engagement between the locking rod 6034 and the support rod 6035 is downward. When there are too many rings on the locking rod 6034, the locking rod 6034 will not be able to support and will disconnect from the support rod 6035, causing the rings to fall into the groove at the top of the machine base 1. The end of the support rod 6035 away from the locking rod 6034 is slidably connected to the bottom of the rotary table.

[0051] After the silicon nitride ceramic substrate ring is cut off, it falls onto the locking rod 6034 and is intercepted by the locking rod 6034. Then, when the next silicon nitride ceramic substrate is cut, it is washed away by the water flow, so that there is no powder residue on the surface of the silicon nitride ceramic substrate ring. After several layers of rings have accumulated, when the locking rod 6034 reaches its limit, the locking rod 6034 disconnects from the support rod 6035, allowing the ring to fall into the groove at the top of the machine 1, so that the ring can be stored. After a batch is processed, it is taken out by the staff, which reduces the unloading work of the staff, keeps the surface of the ring clean, and reduces dust retention.

[0052] The protective component 606 includes an arc-shaped rod 6061, the bottom of which is rotatably connected to the top of the connecting block 6033. A baffle 6062 is symmetrically arranged on the outer wall of the arc-shaped rod 6061, and the outer wall of the baffle 6062 is rotatably connected to the outer wall of the arc-shaped rod 6061. A bent rod 6063 is symmetrically arranged at the end of the arc-shaped rod 6061 away from the baffle 6062, and the outer wall of the bent rod 6063 is rotatably connected to the outer wall of the arc-shaped rod 6061. A pressing strip 6064 is rotatably connected to the bottom of the bent rod 6063, and an elastic rod 6065 is fixedly connected to the opposite side of the pressing strip 6064. The elastic rod 6065 is made of elastic material, and in the initial state, pulling the two pressing strips 6064 brings them closer together.

[0053] After the baffle 605 adjusts the position of the silicon nitride ceramic substrate, the arc rod rotates, causing the pressing strip 6064 to contact the top of the silicon nitride ceramic substrate and continue to press downwards. This causes the curved rod 6063 to move the pressing strip 6064 to both sides, wiping the top of the silicon nitride ceramic substrate. Then, cutting begins. During cutting, the baffle 6062 is raised to block the cooling water flow during cutting. The pressing rod contacts the edge of the ring, increasing the pressing area and making the silicon nitride ceramic substrate more stable. At the position where the cutting blade 503 passes, the arc rod 6061 moves the pressing strip 6064 away from the silicon nitride ceramic substrate, making room for the cutting blade 503. Then, it is pressed again, and the arc rod 6061 moves away from the surface of the silicon nitride ceramic substrate in turn, so that the silicon nitride ceramic substrate is always kept in a multi-directional pressing and fixed position. This ensures stability during cutting and avoids severe vibration caused by insufficient fixation due to the excessive hardness of the silicon nitride ceramic substrate, which would result in uneven cut edges and waste of raw materials.

[0054] The specific workflow is as follows:

[0055] The operator inserts the silicon nitride ceramic substrate into the slide groove 405. The extrusion roller 406 clamps the substrate in the groove and holds it inside the clamping assembly 404. Then, the hydraulic column 401 moves the connecting rod 403, causing the clamping assembly 404 to move the silicon nitride ceramic substrate closer to the fixing mechanism 6 and place it on top of the fixing mechanism 6 for fixation. The position of the cutting mechanism 5 is then adjusted to cut the silicon nitride ceramic ring from the substrate. The position of the buffer assembly 603 is adjusted, and after the substrate is placed on the rotating seat 602, the telescopic rod 604 causes the baffle 605 to extend outwards. The baffle 605 then rotates 180 degrees, encircling the edge of the silicon nitride ceramic substrate and simultaneously retracting inwards. The protective component 606 rotates closer to the silicon nitride ceramic substrate, pressing it down. Then, the baffle 605 rotates back to its initial position, adjusting and fixing the silicon nitride ceramic substrate at the center of the rotating seat 602, ensuring that the buffer component 603 does not obstruct the cutting blade 503. During the cutting process, each set of protective components 606 opens sequentially, leaving space for cutting. After cutting, they are pressed back onto the surface of the silicon nitride ceramic substrate to maintain its stability and ensure a neater cut. The protective component 606 cleans the surface of the silicon nitride ceramic substrate and prevents water splashes. After cutting, the feeding mechanism 4 removes the remaining disc from the fixing mechanism 6 and places the next silicon nitride ceramic substrate on the fixing mechanism 6.

[0056] Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of them. All other embodiments obtained by those skilled in the art and related fields based on the embodiments of the present invention without inventive effort should fall within the scope of protection of the present invention. Structures, devices, and operating methods not specifically described and explained in the present invention, unless otherwise specified or limited, shall be implemented according to conventional means in the art.

Claims

1. A fixture for producing silicon nitride ceramic substrates, specifically comprising: Machine base (1); characterized in that: a back plate (2) is fixedly connected to the top of the machine base (1), and a top plate (3) is fixedly connected to the top of the back plate (2); The silicon nitride ceramic substrate production fixture also includes: The bottom of the fixing mechanism (6) is fixedly connected to the central axis at the top of the machine base (1); The fixing mechanism (6) includes a lifting platform (601), a rotating seat (602) is rotatably connected to the top of the lifting platform (601), buffer components (603) are evenly arranged on the outer wall of the rotating seat (602), one end of the buffer component (603) away from the rotating seat (602) is slidably connected to the top of the machine base (1), and a protective component (606) is rotatably connected to the top of the buffer component (603). The outer wall of the feeding mechanism (4) is fixedly connected to the outer surface of the back plate (2); The feeding mechanism (4) includes a hydraulic column (401), the outer wall of the hydraulic column (401) is fixedly connected to the outer surface of the back plate (2), a crossbar (402) is fixedly connected to one end of the hydraulic column (401) away from the back plate (2), a connecting rod (403) is symmetrically arranged on the side of the crossbar (402) close to the back plate (2), and a clamping assembly (404) is fixedly connected to one end of the connecting rod (403) away from the crossbar (402). The fixing mechanism (6) also includes a telescopic rod (604), which is evenly arranged on the outer wall of the rotating table, and a baffle (605) is rotatably connected to the end of the telescopic rod (604) away from the rotating table. The buffer assembly (603) includes a movable column (6032), six movable columns (6032) are evenly arranged, and a slide rail (6031) is evenly opened on the top of the machine platform (1). The inner wall of the slide rail (6031) is slidably connected to the bottom of the movable column (6032). A connecting block (6033) is fixedly connected to the top of the movable column (6032), and locking rods (6034) are symmetrically arranged on the outer wall of the connecting block (6033). The outer wall of the locking rod (6034) is rotatably connected to the outer surface of the connecting block (6033). A support rod (6035) is provided at the end of the locking rod (6034) away from the moving column (6032). The end of the support rod (6035) away from the rotating table is engaged with the outer wall of the locking rod (6034). The end of the support rod (6035) away from the locking rod (6034) is slidably connected to the bottom of the rotating table. After the silicon nitride ceramic substrate ring is cut off, the ring falls onto the locking rod (6034). When the bearing capacity of the locking rod (6034) reaches its limit, the locking rod (6034) and the support rod (6035) disconnect, causing the ring to fall into the groove at the top of the machine (1). The protective component (606) includes an arc-shaped rod (6061), the bottom of which is rotatably connected to the top of a connecting block (6033). A baffle (6062) is symmetrically arranged on the outer wall of the arc-shaped rod (6061), and the outer wall of the baffle (6062) is rotatably connected to the outer wall of the arc-shaped rod (6061). A bent rod (6063) is symmetrically arranged at the end of the arc-shaped rod (6061) away from the baffle (6062), and the outer wall of the bent rod (6063) is rotatably connected to the outer wall of the arc-shaped rod (6061). A pressing strip (6064) is rotatably connected to the bottom of the bent rod (6063), and an elastic rod (6065) is fixedly connected to the opposite side of the pressing strip (6064).

2. The silicon nitride ceramic substrate production fixing device according to claim 1, characterized in that: The bottom of the top plate (3) is fixedly connected to a cutting mechanism (5), the outer surface of the buffer assembly (603) is slidably connected to the inner wall of the rotating seat (602), the side of the crossbar (402) near the back plate (2) is fixedly connected to the outer wall of the connecting rod (403), and the outer surfaces of the connecting rod (403) are sleeved together.

3. The silicon nitride ceramic substrate production fixing device according to claim 2, characterized in that: The cutting mechanism (5) includes a hydraulic rod (501), the top of which is fixedly connected to the bottom of the top plate (3), and a mounting plate (502) is rotatably connected to the bottom of the hydraulic rod (501). A suction cup (504) is rotatably connected to the bottom of the mounting plate (502), and a cutting blade (503) is slidably connected to the side of the bottom of the mounting plate (502) away from the suction cup (504).

4. The silicon nitride ceramic substrate production fixing device according to claim 1, characterized in that: The feeding mechanism (4) also includes a chute (405), the top of which is fixedly connected to the top of the inner wall of the back plate (2). There are two symmetrically arranged chute (405). The inner wall of the chute (405) is uniformly provided with extrusion rollers (406). The outer wall of the extrusion rollers (406) is slidably connected to the inner wall of the chute (405). The end of the chute (405) away from the crossbar (402) is in contact with the outer wall of the clamping assembly (404).

5. The silicon nitride ceramic substrate production fixing device according to claim 1, characterized in that: The clamping assembly (404) includes a mounting block (4041), the outer wall of which contacts the end of the slide groove (405) away from the crossbar (402), the outer wall of which is fixedly connected to the end of the connecting rod (403) away from the crossbar (402), a rubber block (4042) is fixedly connected to the inner wall of the mounting block (4041), an electric push rod (4043) is fixedly connected to the bottom of the mounting block (4041), a brush rod (4044) is fixedly connected to the bottom of the electric push rod (4043), and a bracket (4045) is symmetrically arranged on the side of the mounting block (4041) near the crossbar (402), the outer wall of the bracket (4045) is rotatably connected to the outer wall of the mounting block (4041).

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