Polishing equipment for ceramic repair

Abstract

The invention relates to grinding equipment for ceramic repair, a fixture and a plurality of grinding shafts are rotatably mounted on a rack, a telescopic rod of the fixture extends to drive a connecting rod to move so as to drive a clamping jaw to open, and the opened clamping jaw is clamped and fixed at an opening of a ceramic workpiece. The grinding shaft comprises a sleeve and a mandrel slidably mounted on the sleeve, a reset spring is arranged between one end of the mandrel and the sleeve, a grinding head is hinged to the other end of the mandrel, the grinding head can be tightly pressed on the ceramic workpiece under the action of the reset spring, the sleeve rotates to drive the mandrel and the grinding head to rotate, and the ceramic workpiece is ground when the grinding head rotates. An air pipe support used for fixing an air pipe is installed on the rack, and the polishing shaft drives the air pipe support and the air pipe on the air pipe support to reciprocate when rotating. The grinding equipment can be flexibly suitable for grinding and repairing special-shaped ceramic workpieces and ceramic workpieces with different calibers, the air spraying range of the air pipe towards the surfaces of the ceramic workpieces is large, and then the dust removal range in the grinding process can be enlarged.

Description

Technical Field

[0001] The present invention relates to the technical field of grinding equipment, and particularly to a grinding device for ceramic repair. Background Art

[0002] Due to its unique aesthetic value and excellent physical properties such as high hardness, high wear resistance, and high corrosion resistance, ceramic materials are widely used in various fields, such as aerospace, medical devices, chemical equipment, electronic components, art, daily life, etc. However, ceramic materials are brittle and easily damaged, and during processing and use, cracks, scratches, or breakages are likely to occur due to various reasons (such as impact, wear, corrosion, etc.), and need to be repaired. Traditional ceramic repair methods mostly use manual operations, such as using tools like sandpaper and grindstones for grinding treatment. This method is not only inefficient but also difficult to ensure the consistency of repair quality.

[0003] In order to improve the grinding efficiency and repair quality, some mechanized grinding devices for ceramic repair have emerged in recent years. However, the existing grinding devices cannot well adapt to ceramic products of different shapes and sizes, especially special-shaped ceramics with complex curved surfaces or special structures. The repair of special-shaped ceramic workpieces still mainly relies on manual grinding at present. And during the ceramic grinding process, the grinding device fixes the ceramic through a fixture, while the fixtures of the existing grinding devices usually cannot well adapt to the clamping and fixing of ceramics with different opening diameters. In addition, dust that is harmful to the grinding quality of ceramics will be generated during the ceramic grinding and repair process. In order to remove dust, the existing grinding devices spray air onto the surface of the ceramic workpiece through an air pipe during the grinding process to remove the dust generated during grinding. However, for the existing grinding devices in the prior art, because the position of the air pipe is fixed, it can only spray air and remove dust at one or several fixed points on the surface of the ceramic workpiece, resulting in a small dust removal range and poor dust removal effect on the surface of the ceramic workpiece. Summary of the Invention

[0004] The purpose of the present invention is to provide a grinding device for ceramic repair to solve the technical problems that the existing grinding devices for ceramic repair have poor adaptability to special-shaped ceramic workpieces and ceramic workpieces with different diameters, and have a small dust removal range during the grinding process.

[0005] The technical problems solved by the present invention can be achieved by the following solutions: A grinding device for ceramic repair, including a frame, on which a chuck and multiple grinding shafts are rotatably installed. The chuck includes a turntable rotatably installed on the frame and a claw hinged on the turntable. A telescopic rod is fixed on the turntable, and one end of a connecting rod is hinged to the telescopic end of the telescopic rod, and the other end of the connecting rod is hinged to the claw. When the telescopic rod extends, it drives the connecting rod to move and then drives the claw to open. The opened claw can be clamped and fixed at the opening of the ceramic workpiece; The grinding shaft includes a sleeve rotatably mounted on the frame and a mandrel slidably mounted on the sleeve. A return spring is provided between one end of the mandrel and the sleeve, and a grinding head capable of contacting the ceramic workpiece is hinged to the other end. Under the action of the return spring, the grinding head on the mandrel can be pressed against the ceramic workpiece. The rotation of the sleeve drives the mandrel and the grinding head to rotate, and the grinding head grinds the ceramic workpiece during rotation. During grinding, the axial movement of the mandrel is restricted by a limiting mechanism mounted on the frame. A trachea bracket for fixing a trachea capable of jetting air towards the ceramic workpiece is mounted on the frame. When the grinding shaft rotates, it can drive the trachea bracket and the trachea thereon to reciprocate.

[0006] Furthermore: The limiting mechanism includes a limiting rod with limiting rod locking teeth mounted on the frame, and a limiting sleeve rotatably mounted outside the mandrel and axially fixed to the mandrel with limiting sleeve locking teeth. During grinding, after the grinding head contacts the ceramic workpiece, when the limiting rod moves towards the limiting sleeve until the limiting rod locking teeth engage with the limiting sleeve locking teeth, the limiting rod can restrict the axial movement of the limiting sleeve, thereby restricting the axial movement of the mandrel, so that the grinding head hinged to the mandrel maintains contact with the ceramic workpiece.

[0007] Furthermore: A limiting mechanism mounting bracket is fixedly mounted on the frame, and a limiting telescopic rod is fixedly mounted on the limiting mechanism mounting bracket. The telescopic end of the limiting telescopic rod is fixedly connected to the limiting rod, and when the limiting telescopic rod extends, it drives the limiting rod to move towards the limiting sleeve.

[0008] Furthermore: The trachea bracket includes a trachea fixing member for fixing the trachea, and a first rack and a second rack fixedly connected and arranged oppositely. The trachea fixing member is fixed on the first rack, and the first rack and the second rack are slidably mounted on the frame. An incomplete gear is coaxially fixed on one of the grinding shafts, and the incomplete gear can mesh with the first rack and the second rack. When the grinding shaft rotates and the incomplete gear rotates to mesh with the first rack, the rotation of the incomplete gear drives the fixedly connected first rack and second rack to move, thereby driving the trachea fixing member to move. When the incomplete gear rotates to mesh with the second rack, the rotation of the incomplete gear drives the fixedly connected first rack and second rack to move in the opposite direction, thereby driving the trachea fixing member to move in the opposite direction.

[0009] Furthermore: A guide rail is fixedly mounted on the frame, and a sliding pin slidably mounted in the guide rail is fixedly provided below the second rack.

[0010] Furthermore: Two sets of oppositely arranged chucks are rotatably mounted on the frame, and the jaws of the two sets of chucks are respectively clamped and fixed at an opening of the ceramic workpiece.

[0011] Furthermore: Multiple grinding shafts are arranged in parallel and are at the same height of the frame.

[0012] Furthermore: A gear is coaxially and fixedly installed outside the sleeve of each grinding shaft, and the gears of each sleeve are meshed in sequence. When one grinding shaft rotates, it drives the other grinding shafts to rotate synchronously.

[0013] Furthermore: A driving motor is fixedly installed on the frame, and the output shaft of the driving motor is in transmission connection with one of the grinding shafts through a transmission belt. When the driving motor is started, it drives the grinding shaft in transmission connection with it to rotate through the transmission belt.

[0014] Furthermore: The core shaft is a key shaft, and the connecting key on the core shaft is inserted into the key groove opened in the sleeve.

[0015] The grinding device for ceramic repair of the present invention uses a fixture to fix the ceramic workpiece. When the telescopic rod of the fixture extends, it drives the connecting rod to move, and then drives the claw to open. The opened claw is clamped and fixed at the opening of the ceramic workpiece. Therefore, it can adjust the opening degree of the claw according to the opening diameter of the ceramic workpiece by adjusting the total length after the telescopic rod extends or shortens. The larger the opening diameter of the ceramic workpiece, the larger the opening degree of the corresponding claw; the smaller the opening diameter of the ceramic workpiece, the smaller the opening degree of the corresponding claw. Furthermore, the grinding device of the present invention can be flexibly applied to the grinding of ceramic workpieces with different opening diameters.

[0016] In addition, the grinding device of the present invention uses multiple rotating grinding shafts to grind the outer surface of the ceramic workpiece. Each grinding shaft includes a sleeve and a core shaft slidably installed on the sleeve. A return spring is arranged between one end of the core shaft and the sleeve, and a grinding head that can contact the ceramic workpiece is hinged to the other end. Under the action of the return spring, the grinding head on the core shaft can be pressed against the ceramic workpiece. The rotation of the sleeve drives the core shaft and the grinding head to rotate, and the grinding head grinds the ceramic workpiece when rotating. Therefore, each grinding shaft can adaptively adjust the total length of the grinding shaft by adjusting the length of the return spring according to the specific shape of the ceramic workpiece at the grinding position of the ceramic workpiece, and can adaptively adjust its grinding angle by adjusting the rotation angle of the grinding head relative to the core shaft. That is, after the ceramic workpiece is fixed by the fixture, each grinding shaft automatically presses against the outer surface of the ceramic workpiece under the action of the return spring according to the specific shape of the ceramic workpiece at the grinding position. During the pressing process, the grinding head automatically rotates under the action of the force of the ceramic workpiece on the grinding head until it closely adheres to the outer surface of the ceramic workpiece at a suitable grinding angle, so that each grinding shaft can adapt to the specific shape of the ceramic workpiece at its grinding position. And the number, arrangement mode and grinding position of the grinding shafts on the outer surface of the ceramic workpiece can be flexibly adjusted according to the specific shape of the ceramic workpiece to be ground. As can be seen from the above, the grinding device of the present invention has good applicability and can adapt to the grinding and repair of special-shaped ceramic workpieces with different shapes.

[0017] In addition, the grinding device of the present invention is provided with an air pipe bracket, and an air pipe capable of jetting air towards the ceramic workpiece is fixedly installed on the air pipe bracket. When the grinding shaft rotates, it can drive the air pipe bracket and the air pipe thereon to reciprocate. Compared with the grinding device with a fixed air pipe position, the air pipe of the grinding device of the present invention can reciprocate during the grinding process. Therefore, the jetting range of the air pipe towards the surface of the ceramic workpiece can be improved, and further, the dust removal range during the grinding process can be increased and the dust removal effect can be improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0019] Figure 1 is a schematic structural diagram of a grinding device for ceramic repair according to the present invention, and the ceramic workpiece is fixed on the fixture; Figure 2 is a schematic structural diagram of another angle of a grinding device for ceramic repair according to the present invention, and the ceramic workpiece is fixed on the fixture; Figure 3 is a schematic structural diagram of another angle of a grinding device for ceramic repair according to the present invention, and the ceramic workpiece is removed from the fixture; Figure 4 is Figure 2 a partial enlarged view of part A of Figure 5 is Figure 3 a partial enlarged view of part B of Figure 6 is a schematic structural diagram of another angle of a grinding device for ceramic repair according to the present invention, and a part of one of the grinding shafts is in a cut-away state; Figure 7 is Figure 6 a partial enlarged view of part C of Figure 8 is Figure 1 a partial enlarged view of part D of Figure 9 is a schematic structural diagram of another angle of a grinding device for ceramic repair according to the present invention, and the front baffle of the limit mechanism mounting frame is in a removed state; Figure 10 is a schematic structural diagram of another angle of a grinding device for ceramic repair according to the present invention, and the front baffle and the upper baffle of the limit mechanism mounting frame are in removed states; Figure 11 is Figure 9 a partial enlarged view of part E of Figure 12 It is a schematic structural diagram of a grinding device for ceramic repair according to the present invention from another angle; Figure 13 is Figure 12 The partial enlarged view of the F position of; Main reference numerals description: Frame: 1; Limiting mechanism mounting frame: 11; Front baffle: 111; Upper baffle: 112; Guide rail: 12; Fixture: 2; Turntable: 21; Claw: 22; Telescopic rod: 23; Connecting rod: 24; Grinding shaft: 3; Sleeve: 31; Gear: 311; Inner wall: 312; Core shaft: 32; Connecting key: 321; Return spring: 33; Grinding head: 34; Incomplete gear: 35; Limiting mechanism: 4; Limiting rod: 41; Limiting rod locking teeth: 411; Limiting sleeve: 42; Limiting sleeve locking teeth: 421; Limiting telescopic rod: 43; Air pipe support: 5; Air pipe fixing part: 51; First rack: 52; Second rack: 53; Slide pin: 54; Air pipe: 6; Drive motor: 71; Transmission belt: 72; Ceramic workpiece: 100; Opening: 101. Detailed implementation manners

[0020] To clearly show the purpose, technical solution and advantages of the present invention, the embodiments of the present invention will be further described in detail below with reference to the accompanying drawings.

[0021] Figures 1-3 It is a structural diagram of a grinding device for ceramic repair according to this embodiment. As Figures 1-3 shown, the grinding device for ceramic repair includes a frame 1. A fixture 2 for fixing a ceramic workpiece 100 and multiple grinding shafts 3 for grinding the ceramic workpiece 100 that can rotate synchronously are rotatably installed on the frame 1. When grinding, the ceramic workpiece 100 is fixed on the fixture 2. A grinding head 34 that can directly contact the outer surface of the ceramic workpiece 100 fixed on the fixture 2 is provided at one end of each grinding shaft 3 ( Figure 1 , 2 the grinding head 34 in has not yet contacted the outer surface of the ceramic workpiece 100). The rotation of the fixture 2 drives the rotation of the ceramic workpiece 100, and the rotation of the grinding shaft 3 drives the rotation of the grinding head 34. During the rotation of the grinding head 34, the outer surface of the rotating ceramic workpiece 100 is ground.

[0022] As Figures 2-5As shown, the fixture 2 includes a turntable 21 rotatably mounted on the frame 1 and a plurality of claws 22 hinged on the turntable 21, a telescopic rod 23 is fixed on the turntable 21, the telescopic end of the telescopic rod 23 is hinged to one end of a plurality of connecting rods 24, the number of connecting rods 24 is the same as the claws 22 and each connecting rod 24 corresponds to a claw 22, and the other end of each connecting rod 24 is hinged to a corresponding claw 22, when the telescopic rod 23 is extended, the plurality of connecting rods 24 are driven to move and then the plurality of claws 22 are driven to open, and the opened claws 22 can be clamped and fixed at the opening 101 of the ceramic workpiece 100.

[0023] like Figures 1-3 , 6, and 7, the grinding shaft 3 includes a sleeve 31 rotatably mounted on the frame 1 and a mandrel 32 slidably mounted in the sleeve 31 along the axial direction of the sleeve 31, one end of the mandrel 32 is connected to the inner wall 312 of the sleeve 31 (shown in Figure 7 A return spring 33 (shown in Figure 6 , 7 ), that is, one end of the return spring 33 is connected to the mandrel 32, and the other end is connected to the inner wall 312 of the sleeve 31. The other end of the mandrel 32 is hinged with the grinding head 34 that can contact the outer surface of the ceramic workpiece 100. In this embodiment, the rotation axis of the grinding head 34 relative to the mandrel 32 is perpendicular to the axis of the mandrel 32. Under the action of the return spring 33, the grinding head 34 hinged on the mandrel 32 can be pressed against the outer surface of the ceramic workpiece 100 ( Figure 1 , 2 , 6), the grinding head 34 has not yet contacted the outer surface of the ceramic workpiece 100), the rotation of the sleeve 31 drives the mandrel 32 and the grinding head 34 to rotate, and the grinding head 34 grinds the outer surface of the ceramic workpiece 100 when rotating. During grinding, the axial movement of the mandrel 32 is limited by the limiting mechanism 4 installed on the frame 1, so that the grinding head 34 hinged on the mandrel 32 can maintain a contact state with the outer surface of the ceramic workpiece 100, thereby improving the grinding quality and effect.

[0024] like Figure 1 , 3 As shown, an air pipe bracket 5 is installed on the frame 1, and an air pipe 6 capable of spraying air toward the ceramic workpiece 100 is fixedly arranged on the air pipe bracket 5. In this embodiment, the air pipe 6 adopts a rigid tube. When the grinding shaft 3 rotates, it can drive the air pipe bracket 5 to move back and forth on the frame 1, thereby driving the air pipe 6 on the air pipe bracket 5 to move back and forth.

[0025] When using the grinding equipment for ceramic repair of this embodiment to grind and repair a ceramic workpiece, the ceramic workpiece 100 is fixed at the fixture 2 of the grinding equipment. When fixing, the telescopic rod 23 of the fixture 2 is extended. When the telescopic rod 23 is extended, it drives the connecting rod 24 to move, and then drives the claw 22 to open. The opened claw 22 is clamped and fixed at the opening 101 of the ceramic workpiece 100. Therefore, the opening degree of the claw 22 can be adjusted according to the diameter of the opening 101 of the ceramic workpiece 100 by adjusting the total length after the telescopic rod 23 is extended or shortened. The larger the diameter of the opening 101 of the ceramic workpiece 100, the larger the opening degree of the corresponding claw 22; the smaller the diameter of the opening 101 of the ceramic workpiece 100, the smaller the opening degree of the corresponding claw 22. Thus, the grinding equipment of this embodiment can be flexibly applied to the grinding of ceramic workpieces with different opening diameters.

[0026] After the ceramic workpiece 100 is fixed at the fixture 2, under the action of the return spring 33 of the grinding shaft 3, the grinding head 34 on the mandrel 32 can be pressed against the ceramic workpiece 100, and then the grinding operation can be started. During grinding, the rotation of the turntable 21 of the fixture 2 drives the claw 22 to rotate, and then drives the ceramic workpiece 100 to rotate. The rotation of the sleeve 31 of the grinding shaft 3 drives the mandrel 32 and the grinding head 34 to rotate. When the grinding head 34 rotates, it grinds the rotating ceramic workpiece 100. It can be seen that each grinding shaft 3 can adaptively adjust the total length of the grinding shaft 3 by adjusting the length of the return spring 33 according to the specific shape of the ceramic workpiece 100 at the grinding position of the ceramic workpiece 100, and can adaptively adjust its grinding angle by adjusting the rotation angle of the grinding head 34 relative to the mandrel 32. That is, after the ceramic workpiece 100 is fixed by the fixture 2, each grinding shaft 3 automatically presses against the outer surface of the ceramic workpiece 100 under the action of the return spring 33 according to the specific shape of the ceramic workpiece 100 at the grinding position. During the pressing process, due to the force of the ceramic workpiece 100 on the grinding head 34, the grinding head 34 automatically rotates relative to the mandrel 32 until it closely adheres to the outer surface of the ceramic workpiece 100 at a suitable grinding angle, so that each grinding shaft 3 can adapt to the specific shape of the ceramic workpiece 100 at its grinding position. And the number, arrangement mode of the grinding shafts 3 and their grinding positions on the outer surface of the ceramic workpiece 100 can be flexibly adjusted according to the specific shape of the ceramic workpiece 100 to be ground. As can be seen from the above, the grinding equipment of this embodiment has good applicability and can adapt to the grinding and repair of special-shaped ceramic workpieces with different shapes.

[0027] In addition, the grinding device of this embodiment is provided with an air pipe bracket 5, on which an air pipe 6 capable of spraying air toward the ceramic workpiece 100 is fixedly mounted, and when the grinding shaft 3 rotates, the air pipe bracket 5 and the air pipe 6 thereon can be driven to reciprocate. Compared with the grinding device with a fixed air pipe position, the grinding device of this embodiment has an air pipe 6 that can reciprocate during the grinding process, so that the air pipe 6 can increase the air jet range of the air pipe 6 toward the surface of the ceramic workpiece 100, thereby increasing the dust removal range during the grinding process and improving the dust removal effect.

[0028] In order to form a stable clamping fixation for the ceramic workpiece 100 and prevent the ceramic workpiece 100 from being displaced or falling off from the fixture 2 during the grinding process, as shown in FIG. Figures 1-3 As shown, two sets of clamps 2 are rotatably mounted on the frame 1, and the claws 22 of the two sets of clamps 2 are respectively clamped and fixed at an opening 101 of the ceramic workpiece 100. In this embodiment, the turntables 21 of the two sets of clamps 2 are respectively driven to rotate by a motor, which is not shown in the figure.

[0029] In this embodiment, multiple grinding shafts 3 are arranged in parallel and located at the same height of the frame 1. That is, the distance between the grinding shafts 3 and the bottom of the frame 1 is the same. Of course, according to the specific shape of the ceramic workpiece 100 to be ground, the grinding shafts 3 can also be arranged in other ways different from this embodiment, such as multiple grinding shafts 3 are arranged in parallel but located at different heights of the frame 1.

[0030] In order to realize the synchronous rotation of multiple grinding shafts 3, Figures 1-3 , 6, and 7, a gear 311 is coaxially fixedly installed on the outside of the sleeve 31 of each grinding shaft 3, and the gears 311 of each sleeve 31 are meshed in sequence, so that when one grinding shaft 3 rotates, the other grinding shafts 3 can be driven to rotate synchronously. In this embodiment, a drive motor 71 is fixedly installed on the frame 1, and the output shaft of the drive motor 71 is connected to one of the grinding shafts 3 through a transmission belt 72 (shown in FIG. Figure 2 , Figure 3 When the drive motor 71 is started, the grinding shaft 3 connected to it is driven to rotate through the transmission belt 72. Of course, other conventional transmission modes can also be used to drive one of the grinding shafts 3 to rotate by the drive motor 71.

[0031] In order to enable the sleeve 31 to rotate and drive the core shaft 32 to rotate, as shown in FIG. Figure 8 As shown, in this embodiment, the core shaft 32 is a key shaft, and the connecting key 321 on the core shaft 32 is inserted into the keyway provided in the sleeve 31 .

[0032] Regarding the specific structure of the limiting mechanism 4, Figure 1 , 6As shown, the limit mechanism 4 of this embodiment includes a limit rod 41 installed on the frame 1. The limit mechanism mounting bracket 11 (shown in Figure 2 is fixedly installed on the frame 1 of this embodiment. The limit rod 41 is installed on the limit mechanism mounting bracket 11. The limit mechanism mounting bracket 11 has a front baffle 111 (shown in Figure 6 and an upper baffle 112 (shown in Figure 6 Of course, no baffle needs to be provided for the limit mechanism mounting bracket 11. As shown in Figures 9-11 shown ( Figure 9 the front baffle 111 of the limit mechanism mounting bracket 11 in is in a removed state, Figure 10 the front baffle 111 and the upper baffle 112 of the limit mechanism mounting bracket 11 in are in a removed state), a limit rod locking tooth 411 (shown in Figure 11 is provided below the limit rod 41. A limit sleeve 42 that is axially fixed to the mandrel 32 is rotatably installed outside the mandrel 32. A limit sleeve locking tooth 421 (shown in Figure 11 that can engage with the limit rod locking tooth 411 is provided on the outer surface of the limit sleeve 42; when grinding, after the grinding head 34 contacts the ceramic workpiece 100, the limit rod 41 moves towards the limit sleeve 42 until the limit rod locking tooth 411 on the limit rod 41 engages with the limit sleeve locking tooth 421 on the limit sleeve 42. At this time, the limit rod 41 can limit the axial movement of the limit sleeve 42 and thus limit the axial movement of the mandrel 32, so that the grinding head 34 hinged to the mandrel 32 maintains contact with the outer surface of the ceramic workpiece 100. After grinding, the limit rod 41 moves away from the limit sleeve 42, and the limit rod locking tooth 411 disengages from the limit sleeve locking tooth 421.

[0033] In this embodiment, the axial fixation between the limit sleeve 42 and the mandrel 32 can be achieved by fixedly arranging a retaining ring (the retaining ring is not shown in the drawings) on the outer surface of the mandrel 32, and the retaining ring restricts the axial movement of the limit sleeve 42 on the mandrel 32. Of course, other conventional axial fixation methods can also be used.

[0034] To realize the movement of the limit rod 41, as shown in Figure 9 , 11 shown, a limit telescopic rod 43 is fixedly installed on the limit mechanism mounting bracket 11. The telescopic end of the limit telescopic rod 43 is fixedly connected above the limit rod 41. When the limit telescopic rod 43 extends, it drives the limit rod 41 to move towards the limit sleeve 42. When the limit telescopic rod 43 contracts, it drives the limit rod 41 to move away from the limit sleeve 42.

[0035] Regarding the specific structure of the tracheal stent 5, as shown in Figure 12 , 13As shown, the tracheal stent 5 includes a tracheal fixing member 51 for fixing the trachea 6. In this embodiment, the trachea 6 passes through the fixing hole formed in the tracheal fixing member 51 to realize the fixing of the tracheal fixing member 51 to the trachea 6. Of course, other conventional tracheal fixing methods can also be adopted. The tracheal stent 5 further includes a first rack 52 and a second rack 53 that are fixedly connected and arranged facing each other, that is, the teeth provided on the first rack 52 and the second rack 53 are arranged facing each other. The tracheal fixing member 51 is fixed on the first rack 52, and the first rack 52 and the second rack 53 are slidably installed on the frame 1. In order to realize the reciprocating movement of the tracheal stent 5, an incomplete gear 35 is coaxially fixed on one of the grinding shafts 3 (in this embodiment, 5 grinding shafts 3 are arranged side by side, and the incomplete gear 35 is fixedly arranged on the grinding shaft 3 in the middle position). The incomplete gear 35 can mesh with the first rack 52 and the second rack 53.

[0036] When the rotation of the grinding shaft 3 drives the incomplete gear 35 to rotate and mesh with the first rack 52, the rotation of the incomplete gear 35 drives the fixedly connected first rack 52 and second rack 53 to move, and further drives the tracheal fixing member 51 fixed on the first rack 52 to move. When the incomplete gear 35 rotates and meshes with the second rack 53, the rotation of the incomplete gear 35 drives the fixedly connected first rack 52 and second rack 53 to move in the reverse direction, and further drives the tracheal fixing member 51 to move in the reverse direction. That is, when the incomplete gear 35 meshes with the first rack 52, it drives the tracheal stent 5 to move in a certain direction, and when the incomplete gear 35 meshes with the second rack 53, it drives the tracheal stent 5 to move in the opposite direction. During the continuous rotation of the incomplete gear 35, the reciprocating movement of the tracheal stent 5 and the trachea 6 thereon is realized.

[0037] Regarding the sliding connection method between the first rack 52 and the second rack 53 and the frame 1, as shown in the figure, a guide rail 12 is fixedly installed on the frame 1, and a sliding pin 54 that is slidably installed in the guide rail 12 is fixedly provided below the second rack 53. When the first rack 52 and the second rack 53 move, the sliding pin 54 slides along the guide rail 12, and the guide rail 12 plays a guiding role in the movement of the first rack 52 and the second rack 53.

[0038] When using the grinding equipment for ceramic repair of this embodiment to grind and repair a ceramic workpiece, the ceramic workpiece 100 is fixed at the fixture 2 of the grinding equipment. When fixing, the telescopic rod 23 of the fixture 2 is extended. When the telescopic rod 23 is extended, it drives the connecting rod 24 to move, and then drives the claw 22 to open. The opened claw 22 is clamped and fixed at the opening 101 of the ceramic workpiece 100. After the ceramic workpiece 100 is fixed at the fixture 2, under the action of the return spring 33 of the grinding shaft 3, the grinding head 34 on the mandrel 32 is pressed against the ceramic workpiece 100. Then, the limit telescopic rod 43 of the limit mechanism 4 is extended to drive the limit rod 41 to move towards the limit sleeve 42 until the limit rod locking tooth 411 on the limit rod 41 meshes with the limit sleeve locking tooth 421 on the limit sleeve 42. At this time, the limit rod 41 can limit the axial movement of the limit sleeve 42, and thus limit the axial movement of the mandrel 32, so that the grinding head 34 hinged to the mandrel 32 maintains contact with the outer surface of the ceramic workpiece 100. Then the grinding operation can be started. During grinding, the rotation of the turntable 21 of the fixture 2 drives the claw 22 to rotate, and then drives the ceramic workpiece 100 to rotate. After the drive motor 71 is started, it drives the sleeves 31 of each grinding shaft 3 to rotate. The rotation of the sleeve 31 drives the mandrel 32 and the grinding head 34 to rotate. When the grinding head 34 rotates, it grinds the rotating ceramic workpiece 100. When the grinding shaft 3 rotates, it drives the incomplete gear 35 to rotate. When the incomplete gear 35 rotates to mesh with the first rack 52 of the air pipe support 5, the rotation of the incomplete gear 35 drives the fixedly connected first rack 52 and the second rack 53 to move, and then drives the air pipe fixing member 51 fixed on the first rack 52 and used to fix the air pipe 6 to move. When the incomplete gear 35 rotates to mesh with the second rack 53, the rotation of the incomplete gear 35 drives the fixedly connected first rack 52 and the second rack 53 to move in the opposite direction, and then drives the air pipe fixing member 51 to move in the opposite direction. That is, when the incomplete gear 35 meshes with the first rack 52, it drives the air pipe support 5 to move in a certain direction, and when the incomplete gear 35 meshes with the second rack 53, it drives the air pipe support 5 to move in the opposite direction. During the continuous rotation of the incomplete gear 35, the reciprocating movement of the air pipe support 5 and the air pipe 6 thereon is realized.

[0039] The above is only the specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention can easily think of changes or substitutions, which should all be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention should be subject to the protection scope of the claimed rights.

Claims

1. A grinding device for ceramic repair, comprising a frame (1), characterized in that: A fixture (2) and multiple grinding shafts (3) are rotatably mounted on a frame (1). The fixture (2) includes a turntable (21) rotatably mounted on the frame (1) and a claw (22) hinged to the turntable (21). A telescopic rod (23) is fixed on the turntable (21). One end of a connecting rod (24) is hinged to the telescopic end of the telescopic rod (23), and the other end of the connecting rod (24) is hinged to the claw (22). When the telescopic rod (23) extends, it drives the connecting rod (24) to move, thereby driving the claw (22) to open. The opened claw (22) can be clamped and fixed at the opening of a ceramic workpiece (100). The grinding shaft (3) includes a sleeve (31) rotatably mounted on the frame (1) and a mandrel (32) slidably mounted on the sleeve (31). A return spring (33) is arranged between one end of the mandrel (32) and the sleeve (31), and a grinding head (34) capable of contacting the ceramic workpiece (100) is hinged to the other end. Under the action of the return spring (33), the grinding head (34) on the mandrel (32) can be pressed against the ceramic workpiece (100). The rotation of the sleeve (31) drives the mandrel (32) and the grinding head (34) to rotate. When the grinding head (34) rotates, it grinds the ceramic workpiece (100). During grinding, the axial movement of the mandrel (32) is restricted by a limiting mechanism (4) mounted on the frame (1). A trachea bracket (5) for fixing a trachea (6) capable of jetting air towards the ceramic workpiece (100) is mounted on the frame (1). When the grinding shaft (3) rotates, it drives the trachea bracket (5) and the trachea (6) thereon to reciprocate.

2. The grinding device for ceramic repair according to claim 1, characterized in that: The limiting mechanism (4) includes a limiting rod (41) with a limiting rod locking tooth (411) mounted on the frame (1). A limiting sleeve (42) axially fixed to the mandrel (32) and having a limiting sleeve locking tooth (421) is rotatably mounted outside the mandrel (32). During grinding, after the grinding head (34) contacts the ceramic workpiece (100), when the limiting rod (41) moves towards the limiting sleeve (42) until the limiting rod locking tooth (411) meshes with the limiting sleeve locking tooth (421), the limiting rod (41) can restrict the axial movement of the limiting sleeve (42), thereby restricting the axial movement of the mandrel (32), so that the grinding head (34) hinged to the mandrel (32) maintains the contact state with the ceramic workpiece (100).

3. The grinding device for ceramic repair according to claim 2, wherein: A limiting mechanism mounting frame (11) is fixedly mounted on the frame (1). The limiting mechanism mounting frame (11) fixedly mounts a limiting telescopic rod (43). The telescopic end of the limiting telescopic rod (43) is fixedly connected to the limiting rod (41). When the limiting telescopic rod (43) extends, it drives the limiting rod (41) to move towards the limiting sleeve (42).

4. The grinding device for ceramic repair according to claim 1, wherein: The tracheal stent (5) includes a tracheal fixing member (51) for fixing the trachea (6), and a first rack (52) and a second rack (53) which are fixedly connected and arranged facing each other. The tracheal fixing member (51) is fixed on the first rack (52). The first rack (52) and the second rack (53) are slidably mounted on the frame (1). An incomplete gear (35) is coaxially fixed on one of the grinding shafts (3), and the incomplete gear (35) can mesh with the first rack (52) and the second rack (53). When the grinding shaft (3) rotates to drive the incomplete gear (35) to rotate and mesh with the first rack (52), the rotation of the incomplete gear (35) drives the fixedly connected first rack (52) and second rack (53) to move, thereby driving the tracheal fixing member (51) to move. When the incomplete gear (35) rotates to mesh with the second rack (53), the rotation of the incomplete gear (35) drives the fixedly connected first rack (52) and second rack (53) to move in the opposite direction, thereby driving the tracheal fixing member (51) to move in the opposite direction.

5. The grinding device for ceramic repair according to claim 4, characterized in that: A guide rail (12) is fixedly mounted on the frame (1), and a sliding pin (54) which is slidably mounted in the guide rail (12) is fixedly arranged below the second rack (53).

6. The grinding device for ceramic repair according to claim 1, characterized in that: Two sets of oppositely arranged chucks (2) are rotatably mounted on the frame (1), and the claws (22) of the two sets of chucks (2) are respectively clamped and fixed at an opening (101) of the ceramic workpiece (100).

7. The grinding device for ceramic repair according to claim 1, characterized in that: Multiple grinding shafts (3) are arranged in parallel and are at the same height of the frame (1).

8. The grinding device for ceramic repair according to claim 1, characterized in that: A gear (311) is coaxially fixedly mounted outside the sleeve (31) of each grinding shaft (3), and the gears (311) of the respective sleeves (31) are sequentially meshed. When one of the grinding shafts (3) rotates, the remaining grinding shafts (3) are driven to rotate synchronously.

9. The grinding device for ceramic repair according to claim 8, wherein: A driving motor (71) is fixedly mounted on the frame (1), and the output shaft of the driving motor (71) is in transmission connection with one of the grinding shafts (3) through a transmission belt (72). When the driving motor (71) is started, it drives the grinding shaft (3) in transmission connection with it to rotate through the transmission belt (72).

10. The grinding device for ceramic repair according to claim 1, characterized in that: The core shaft (32) is a key shaft, and the connecting key (321) on the core shaft (32) is inserted into the key groove formed in the sleeve (31).

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