Fixing clamp and clamping method for silicon carbide crucible

Abstract

The invention discloses a fixing clamp and a clamping method for a silicon carbide crucible, and relates to the technical field of crucible clamping. The device comprises a power-assisted mechanical arm, a clamping assembly and a detecting and cleaning assembly, before a crucible is clamped, a rotary mounting plate moves, a cleaning brush and a supporting round rod on one side of the rotary mounting plate make contact with an elastic clamping plate, the elastic clamping plate moves in the direction close to the crucible to drive the rotary mounting plate to move, and the crucible is clamped; the cleaning brush on the other side of the rotating mounting plate and the supporting round rod make contact with the surface of the crucible, the elastic clamping plate stops moving, at the moment, the elastic clamping plate is a bent arc-shaped plate, the rotating mounting plate moves in the side face direction of the elastic clamping plate, and the rotating mounting plate drives the cleaning brush to move; the cleaning brushes on the two sides of the rotating mounting plate are used for cleaning the side face of the elastic clamping plate and the surface of the portion, making contact with the elastic clamping plate, of the crucible, and impurity particles are prevented from being attached to the side face of the elastic clamping plate and the surface of the crucible and scratching the crucible during clamping.

Description

Technical Field

[0001] The present invention belongs to the technical field of crucible clamping, and more particularly, to a fixing fixture and a clamping method for a silicon carbide crucible. Background Art

[0002] Silicon carbide crucibles are commonly used tools in production and experiments. Due to their high hardness, brittleness, and high-temperature usage characteristics, silicon carbide crucibles are widely used in actual production; Impurity particles usually adhere to the surface of the crucible and the clamping surface of the fixture. When using the fixture for clamping, it may scratch the crucible and cause damage to the crucible; when using the fixture to clamp a silicon carbide crucible, it is necessary to control the clamping force of the fixture to avoid excessive clamping force and damage to the crucible. Therefore, when the contact surface of the fixture wears, the clamping effect of the fixture will decrease, resulting in incomplete fixation of the crucible during clamping, causing shaking and increasing potential safety hazards. Summary of the Invention

[0003] To solve the above technical problems, the present invention provides the following technical solutions: The present invention is a fixing fixture, including a boosting robotic arm, a clamping assembly, and a detection and cleaning assembly. The clamping assembly includes a clamping mounting plate, a clamping rotating plate, and a clamping unit. The clamping mounting plate is fixedly connected to the boosting robotic arm, and the clamping rotating plate is rotatably mounted on the side of the clamping mounting plate; The clamping unit includes a clamping moving plate and an elastic clamping plate. The clamping moving plate is arranged on the side of the clamping rotating plate, and the elastic clamping plate is arranged on the side of the clamping moving plate; The detection and cleaning assembly includes a cleaning unit and a detection unit. The cleaning unit includes a rotating mounting plate and a cleaning brush. The detection unit includes a supporting round rod and a rotating mounting rod. The rotating mounting plate is arranged on the side of the elastic clamping plate, and the cleaning brushes are fixedly mounted on both sides of the rotating mounting plate. The supporting round rod is arranged on both sides of the rotating mounting plate, and the rotating mounting rod is rotatably connected to the top and bottom of the supporting round rod. The rotating mounting rod is rotatably connected to the rotating mounting plate; The clamping moving plate can move to make the elastic clamping plate approach the crucible. When the elastic clamping plate approaches the crucible, the rotating mounting plate can move to make the cleaning brush on one side of the rotating mounting plate contact the supporting round rod and the elastic clamping plate. The movement of the elastic clamping plate drives the movement of the rotating mounting plate. When the cleaning brush on the other side of the rotating mounting plate and the supporting round rod contact the surface of the crucible, the rotating mounting plate can move to drive the cleaning brush to move along the side of the elastic clamping plate and the surface of the crucible. When the elastic clamping plate moves and contacts the surface of the crucible and presses the crucible, the rotating mounting plate moves towards the crucible. When the rotating mounting plate rotates, the rotating mounting rod rotates. When the supporting round rod contacts and presses the surface of the crucible, the rotating mounting plate can move vertically.

[0004] Preferably, the clamping assembly further includes a clamping lead screw, a clamping motor, and a clamping slider. A lead screw installation groove is formed on the side surface of the clamping rotating plate. The clamping lead screw is rotatably installed in the lead screw installation groove. Two clamping sliders are threadedly sleeved on the clamping lead screw. The clamping slider is slidably matched with the lead screw installation groove. The clamping motor is fixedly installed at one end of the clamping rotating plate. The driving shaft of the clamping motor passes through the clamping rotating plate and is fixedly connected to the clamping lead screw. Two clamping moving plates are arranged on the side surface of the clamping rotating plate. The clamping moving plates are respectively fixedly connected to the clamping sliders. The clamping unit further includes a plurality of clamping cylinders. The clamping cylinders are fixedly installed on the side surface of the clamping rotating plate. The output end of the clamping cylinder passes through the clamping moving plate and is fixedly connected to the elastic clamping plate.

[0005] Preferably, the detection and cleaning assembly further includes a lifting moving frame, a moving lead screw, a moving motor, a moving slider, and a lifting cylinder. The lifting moving frame is arranged on the bottom surface of the clamping moving plate. The lifting cylinder is fixedly installed on the side surface of the clamping moving plate. The output end of the lifting cylinder is fixedly connected to the lifting moving frame. The moving lead screw is rotatably installed in the lifting moving frame. The moving motor is fixedly installed on the side surface of the lifting moving frame. The driving shaft of the moving motor passes through the lifting moving frame and is fixedly connected to the moving lead screw. The moving slider is threadedly sleeved on the moving lead screw. The moving slider is slidably matched with the lifting moving frame.

[0006] Preferably, the cleaning unit further includes a moving sleeve, a moving slide bar, a return spring, a fixed connection block, and a rotating gear. A moving slide hole is formed on the side surface of the moving slider. The moving sleeve passes through the moving slide hole and is slidably connected to the moving slide hole. One end of the moving slide bar is slidably installed in the moving sleeve, and the other end is fixedly connected to the fixed connection block. One end of the return spring is fixedly connected to the moving slide bar, and the other end is fixedly connected to the inner wall end surface of the moving sleeve. The rotating gear is rotatably installed on the top surface of the fixed connection block. The top surface of the rotating gear is fixedly connected to the rotating mounting plate. A rotary damper is fixedly sleeved on the rotating shaft of the rotating gear. The rotary damper is fixedly connected to the top surface of the fixed connection block.

[0007] Preferably, the detection unit further includes a moving rack, a rack cylinder, a cylinder mounting plate, a rotating gear, a transmission gear, a pulley, a transmission belt, and a rotating rack. The cylinder mounting plate is fixedly sleeved on the moving sleeve. The rack cylinder is fixedly installed on the side of the cylinder mounting plate. The output end of the rack cylinder passes through the cylinder mounting plate and is fixedly connected to the moving rack. When the moving rack moves, it can mesh with the rotating gear. The bottom surface of the rotating mounting rod is fixedly connected with the rotating gear. The bottom surface of the rotating mounting plate is rotatably connected with the transmission gear. The transmission gear meshes with one of the rotating gears. The bottom surface of the transmission gear is fixedly connected with the pulley. The bottom surface of the rotating gear not meshing with the transmission gear is fixedly connected with the pulley. The transmission belt is sleeved on the pulley. The rotating rack is arranged above the moving rack and is fixedly connected with the moving rack. When the rotating rack moves, it can mesh with the rotating gear with the pulley.

[0008] Preferably, the detection unit further includes a pushing cylinder, a pushing connecting plate, and a pushing rod. The pushing cylinder is fixedly installed on the end face of the moving slider. The pushing connecting plate is fixedly connected to the output end of the pushing cylinder. One end of the pushing rod is fixedly connected to the moving sleeve, and the other end is fixedly connected to the pushing connecting plate.

[0009] Preferably, the clamping assembly further includes a rotating motor. The rotating motor is fixedly installed on the side of the clamping mounting plate. The driving shaft of the rotating motor passes through the clamping mounting plate and is fixedly connected to the clamping rotating plate.

[0010] Preferably, the clamping screw rod is a bidirectional threaded screw rod.

[0011] Preferably, a rotating damper is fixedly sleeved on the rotating shaft of the transmission gear, and the rotating damper is fixedly connected to the rotating mounting plate.

[0012] A clamping method for a silicon carbide crucible, using the above fixed fixture, includes the following steps; Before clamping the crucible, the rotating mounting plate moves, so that the cleaning brush and the supporting round rod on one side of the rotating mounting plate contact the elastic clamping plate. The elastic clamping plate moves towards the crucible, driving the rotating mounting plate to move, so that the cleaning brush and the supporting round rod on the other side of the rotating mounting plate contact the surface of the crucible. The elastic clamping plate stops moving. At this time, the elastic clamping plate is a bent arc-shaped plate. The rotating mounting plate moves along the side direction of the elastic clamping plate, and the rotating mounting plate drives the cleaning brush to move; When clamping the crucible, the rotating mounting plate moves downward, so that the cleaning brush is disengaged from the elastic clamping plate. The elastic clamping plate moves towards the crucible, and the elastic clamping plate contacts and presses the surface of the crucible; After the crucible is clamped, rotate the mounting plate. When the mounting plate rotates, the rotating mounting rod rotates, causing the supporting round rods to move and approach each other. The mounting plate moves towards the crucible, causing the supporting round rods to contact and press against the surface of the crucible. The mounting plate drives the supporting round rods to move upward.

[0013] Compared with the prior art, the present invention provides a fixing fixture and a clamping method for a silicon carbide crucible, having the following beneficial effects: 1. Before clamping the crucible, the mounting plate moves, causing the cleaning brush and the supporting round rods on one side of the mounting plate to contact the elastic clamping plate. The elastic clamping plate moves towards the crucible, driving the mounting plate to move, so that the cleaning brush and the supporting round rods on the other side of the mounting plate contact the surface of the crucible. The elastic clamping plate stops moving. At this time, the elastic clamping plate is a bent arc-shaped plate. The mounting plate moves along the side direction of the elastic clamping plate, and the mounting plate drives the cleaning brush to move. The cleaning brushes on both sides of the mounting plate respectively clean the side surface of the elastic clamping plate and the part of the surface of the crucible that will contact the elastic clamping plate, preventing impurity particles from adhering to the side surface of the elastic clamping plate and the surface of the crucible, and preventing the crucible from being scratched during clamping.

[0014] 2. After the crucible is clamped, the mounting plate rotates. When the mounting plate rotates, the rotating mounting rod rotates, causing the supporting round rods to move and approach each other. The mounting plate moves towards the crucible, causing the supporting round rods to contact and press against the surface of the crucible. The mounting plate drives the supporting round rods to move upward. When the elastic clamping plate completes the fixation of the crucible, the mounting plate cannot move. When the rotation can move, it means that the elastic clamping plate has not completed the fixation of the crucible, and the elastic clamping plate needs to be replaced to ensure the clamping effect of the crucible, prevent the crucible from moving when the clamping is not completed, reduce potential safety hazards, and ensure production safety.

[0015] 3. When the cleaning brush contacts the elastic clamping plate and the surface of the crucible, the supporting round rods contact the elastic clamping plate and the surface of the crucible at the same time, preventing the cleaning brush from squeezing the elastic clamping plate or the surface of the crucible and ensuring the cleaning effect.

[0016] Of course, it is not necessary for any product implementing the present invention to achieve all the above advantages simultaneously. Description of the Drawings

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the 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 invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0018] Figure 1One of the overall three-dimensional structure diagrams of the present invention; Figure 2 One of the partial three-dimensional structure diagrams of the present invention; Figure 3 For the present invention Figure 2 Schematic diagram of the structure at position A; Figure 4 Two of the partial three-dimensional structure diagrams of the present invention; Figure 5 For the present invention Figure 4 Schematic diagram of the structure at position B; Figure 6 Three of the partial three-dimensional structure diagrams of the present invention; Figure 7 For the present invention Figure 6 Schematic diagram of the structure at position C; Figure 8 Four of the partial three-dimensional structure diagrams of the present invention; Figure 9 For the present invention Figure 8 Schematic diagram of the structure at position D.

[0019] In the attached drawings, the list of components represented by each reference numeral is as follows: 1. Boosting robotic arm; 2. Clamping assembly; 201. Clamping mounting plate; 202. Clamping rotating plate; 203. Clamping lead screw; 204. Clamping motor; 205. Clamping sliding block; 206. Rotating motor; 3. Detection and cleaning assembly; 301. Lifting and moving frame; 302. Moving lead screw; 303. Moving motor; 304. Moving slider; 305. Lifting cylinder; 4. Clamping unit; 401. Clamping moving plate; 402. Elastic clamping plate; 403. Clamping cylinder; 5. Cleaning unit; 501. Rotating mounting plate; 502. Cleaning brush; 503. Moving sleeve; 504. Moving slide bar; 505. Return spring; 506. Fixed connection block; 507. Rotating gear; 6. Detection unit; 601. Supporting round rod; 602. Rotating mounting rod; 603. Moving rack; 604. Rack cylinder; 605. Cylinder mounting plate; 606. Rotating gear; 607. Driving gear; 608. Pulley; 609. Driving belt; 610. Rotating rack; 611. Pushing cylinder; 612. Pushing connecting plate; 613. Pushing rod. Detailed implementation manners

[0020] Next, the technical solutions in the embodiments of the invention will be clearly and completely described in conjunction with the drawings in the embodiments of the invention. Obviously, the described embodiments are only a part of the embodiments of the invention, rather than all the embodiments. Based on the embodiments of the invention, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the scope of protection of the invention.

[0021] In the description of the present invention, it should be understood that the terms "opening", "upper", "lower", "top", "middle", "inner", etc. indicating the orientation or positional relationship are only for the convenience of describing the invention and simplifying the description, rather than indicating or implying that the components or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the invention.

[0022] For the embodiments, please refer to Figure 1 - Figure 9 , this embodiment discloses a fixing fixture, which includes a boosting robotic arm 1, a clamping assembly 2, and a detecting and cleaning assembly 3. The clamping assembly 2 includes a clamping mounting plate 201, a clamping rotating plate 202, and a clamping unit 4. The clamping mounting plate 201 is fixedly connected to the boosting robotic arm 1, and the clamping rotating plate 202 is rotatably mounted on the side of the clamping mounting plate 201; The clamping unit 4 includes a clamping moving plate 401 and an elastic clamping plate 402. The clamping moving plate 401 is arranged on the side of the clamping rotating plate 202, and the elastic clamping plate 402 is arranged on the side of the clamping moving plate 401; The detecting and cleaning assembly 3 includes a cleaning unit 5 and a detecting unit 6. The cleaning unit 5 includes a rotating mounting plate 501 and a cleaning brush 502. The detecting unit 6 includes a supporting round rod 601 and a rotating mounting rod 602. The rotating mounting plate 501 is arranged on the side of the elastic clamping plate 402. Cleaning brushes 502 are fixedly mounted on both sides of the rotating mounting plate 501. The supporting round rod 601 is arranged on both sides of the rotating mounting plate 501. Rotating mounting rods 602 are rotatably connected to the top and bottom of the supporting round rod 601, and the rotating mounting rods 602 are rotatably connected to the rotating mounting plate 501; The clamping moving plate 401 can move to make the elastic clamping plate 402 approach the crucible. When the elastic clamping plate 402 approaches the crucible, the rotating mounting plate 501 can move to make the cleaning brush 502 on one side of the rotating mounting plate 501 contact the supporting round rod 601 and the elastic clamping plate 402. The movement of the elastic clamping plate 402 drives the movement of the rotating mounting plate 501. When the cleaning brush 502 on the other side of the rotating mounting plate 501 and the supporting round rod 601 contact the surface of the crucible, the rotating mounting plate 501 can move to drive the cleaning brush 502 to move along the side surface of the elastic clamping plate 402 and the surface of the crucible. When the elastic clamping plate 402 moves to contact the surface of the crucible and presses the crucible, the rotating mounting plate 501 moves towards the crucible. When the rotating mounting plate 501 rotates, the rotating mounting rod 602 rotates. When the supporting round rod 601 contacts and presses the surface of the crucible, the rotating mounting plate 501 can move vertically; During use, before clamping the crucible, rotate the mounting plate 501 to move it so that the cleaning brush 502 and the support round rod 601 on one side of the rotating mounting plate 501 contact the elastic clamping plate 402. The elastic clamping plate 402 moves towards the crucible, driving the rotating mounting plate 501 to move, so that the cleaning brush 502 and the support round rod 601 on the other side of the rotating mounting plate 501 contact the surface of the crucible. The elastic clamping plate 402 stops moving. At this time, the elastic clamping plate 402 is a bent arc-shaped plate. The rotating mounting plate 501 moves along the side direction of the elastic clamping plate 402, and the rotating mounting plate 501 drives the cleaning brush 502 to move. The cleaning brushes 502 on both sides of the rotating mounting plate 501 respectively clean the side surface of the elastic clamping plate 402 and the part of the surface of the crucible that will contact the elastic clamping plate 402, preventing impurity particles from adhering to the side surface of the elastic clamping plate 402 and the surface of the crucible, and scratching the crucible during clamping; When clamping the crucible, the rotating mounting plate 501 moves downward, so that the cleaning brush 502 is disengaged from the elastic clamping plate 402. The elastic clamping plate 402 moves towards the crucible, and the elastic clamping plate 402 contacts and presses against the surface of the crucible; After the clamping of the crucible is completed, the rotating mounting plate 501 rotates. When the rotating mounting plate 501 rotates, the rotating mounting rod 602 rotates, causing the support round rods 601 to move and approach each other. The rotating mounting plate 501 moves towards the crucible, so that the support round rods 601 contact and press against the surface of the crucible. The rotating mounting plate 501 drives the support round rods 601 to move upward. When the elastic clamping plate 402 completes the fixation of the crucible, the rotating mounting plate 501 cannot move. When the rotating mounting can move, it means that the elastic clamping plate 402 has not completed the fixation of the crucible, and the elastic clamping plate 402 needs to be replaced to ensure the clamping effect on the crucible, prevent the crucible from moving when the clamping is not completed, reduce potential safety hazards, and ensure production safety.

[0023] Please refer to Figure 1 - Figure 9 As shown in, the clamping assembly 2 further includes a clamping lead screw 203, a clamping motor 204 and a clamping sliding block 205. A lead screw installation groove is provided on the side surface of the clamping rotating plate 202. The clamping lead screw 203 is rotatably installed in the lead screw installation groove. Two clamping sliding blocks 205 are threadedly sleeved on the clamping lead screw 203. The clamping sliding blocks 205 are slidably matched with the lead screw installation groove. The clamping motor 204 is fixedly installed at one end of the clamping rotating plate 202. The drive shaft of the clamping motor 204 passes through the clamping rotating plate 202 and is fixedly connected to the clamping lead screw 203. Two clamping moving plates 401 are provided on the side surface of the clamping rotating plate 202. The clamping moving plates 401 are respectively fixedly connected to the clamping sliding blocks 205. The clamping unit 4 further includes a number of clamping cylinders 403. The clamping cylinders 403 are fixedly installed on the side surface of the clamping rotating plate 202. The output end of the clamping cylinder 403 passes through the clamping moving plate 401 and is fixedly connected to the elastic clamping plate 402; During use, the clamping motor 204 drives the clamping lead screw 203 to rotate. The rotation of the clamping lead screw 203 drives the clamping slider 205 to move, and the movement of the clamping slider 205 drives the clamping moving plate 401 to move; the clamping cylinder 403 drives the elastic clamping plate 402 to move.

[0024] Please refer to Figure 1 - Figure 9 As shown in, the detection and cleaning assembly 3 further includes a lifting and moving frame 301, a moving lead screw 302, a moving motor 303, a moving slider 304, and a lifting cylinder 305. The lifting and moving frame 301 is arranged on the bottom surface of the clamping moving plate 401. The lifting cylinder 305 is fixedly installed on the side surface of the clamping moving plate 401, and the output end of the lifting cylinder 305 is fixedly connected to the lifting and moving frame 301. The moving lead screw 302 is rotatably installed in the lifting and moving frame 301. The moving motor 303 is fixedly installed on the side surface of the lifting and moving frame 301, and the drive shaft of the moving motor 303 passes through the lifting and moving frame 301 and is fixedly connected to the moving lead screw 302. The moving slider 304 is threadedly sleeved on the moving lead screw 302, and the moving slider 304 is slidably matched with the lifting and moving frame 301; During use, the lifting cylinder 305 drives the lifting and moving frame 301 to move vertically, and the moving motor 303 drives the moving lead screw 302 to rotate. The rotation of the moving lead screw 302 drives the moving slider 304 to move.

[0025] Please refer to Figure 1 - Figure 9 As shown in, the cleaning unit 5 further includes a moving sleeve 503, a moving slide bar 504, a return spring 505, a fixed connection block 506, and a rotating gear 507. A moving slide hole is formed on the side surface of the moving slider 304. The moving sleeve 503 passes through the moving slide hole and is slidably connected to the moving slide hole. One end of the moving slide bar 504 is slidably installed in the moving sleeve 503, and the other end is fixedly connected to the fixed connection block 506. One end of the return spring 505 is fixedly connected to the moving slide bar 504, and the other end is fixedly connected to the end face of the inner wall of the moving sleeve 503. A rotating gear 507 is rotatably installed on the top surface of the fixed connection block 506. The top surface of the rotating gear 507 is fixedly connected to the rotating mounting plate 501. A rotary damper is fixedly sleeved on the rotating shaft of the rotating gear 507, and the rotary damper is fixedly connected to the top surface of the fixed connection block 506; During use, before clamping the crucible, the elastic clamping plate 402 drives the rotating mounting plate 501 to move, the rotating mounting plate 501 drives the fixed connection block 506 to move, and the fixed connection block 506 drives the moving slide bar 504 to move away from the moving sleeve 503; during cleaning, the moving slider 304 moves to drive the moving sleeve 503 to move, the moving sleeve 503 drives the moving slide bar 504 to move, the moving slide tube drives the fixed connection block 506 to move, and the fixed connection block 506 drives the rotating mounting plate 501 to move.

[0026] Please refer toFigure 1 - Figure 9 The detection unit 6 further includes a moving rack 603, a rack cylinder 604, a cylinder mounting plate 605, a rotating gear 606, a transmission gear 607, a pulley 608, a transmission belt 609, and a rotating rack 610. The cylinder mounting plate 605 is fixedly sleeved on the moving sleeve 503. The rack cylinder 604 is fixedly installed on the side of the cylinder mounting plate 605. The output end of the rack cylinder 604 passes through the cylinder mounting plate 605 and is fixedly connected to the moving rack 603. When the moving rack 603 moves, it can mesh with the rotating gear 507. The bottom surface of the rotating mounting rod 602 is fixedly connected to the rotating gear 606. The bottom surface of the rotating mounting plate 501 is rotatably connected to the transmission gear 607. The transmission gear 607 meshes with one of the rotating gears 606. The bottom surface of the transmission gear 607 is fixedly connected to the pulley 608. The rotating gear 606 not meshing with the transmission gear 607 has a pulley 608 fixedly connected to its bottom surface. The transmission belt 609 is sleeved on the pulley 608. The rotating rack 610 is arranged above the moving rack 603 and is fixedly connected to the moving rack 603. When the rotating rack 610 moves, it can mesh with the rotating gear 606 with a pulley 608. During use, the rack cylinder 604 drives the moving rack 603 to move. The moving rack 603 moves and meshes with the rotating gear 507, driving the rotating gear 507 to rotate. The rotation of the rotating gear 507 drives the rotating mounting plate 501 to rotate. The movement of the moving rack 603 drives the rotating rack 610 to move. The rotating rack 610 moves and meshes with the rotating gear 606 with a pulley 608, driving the rotating gear 606 with a pulley 608 to rotate, thereby driving the transmission gear 607 to rotate. The transmission gear 607 drives the rotating gear 606 without a pulley 608 to rotate. The rotation of the rotating gear 606 drives the rotating mounting plate 501 to rotate. When the rotating mounting plate 501 rotates, the support round rod 601 moves and approaches each other.

[0027] Please refer to Figure 1 - Figure 9 The detection unit 6 further includes a pushing cylinder 611, a pushing connecting plate 612, and a pushing rod 613. The pushing cylinder 611 is fixedly installed on the end face of the moving slider 304. The pushing connecting plate 612 is fixedly connected to the output end of the pushing cylinder 611. One end of the pushing rod 613 is fixedly connected to the moving sleeve 503, and the other end is fixedly connected to the pushing connecting plate 612. During use, the pushing cylinder 611 drives the pushing connecting plate 612 to move. The pushing connecting plate 612 drives the moving sleeve 503 to move towards the crucible through the pushing rod 613. The movement of the moving sleeve 503 drives the moving slide rod 504 to move. The moving slide rod 504 drives the fixedly connected block 506 to move, thereby driving the rotating mounting plate 501 to move.

[0028] Please refer toFigure 1 - Figure 9 The clamping assembly 2 further includes a rotating motor 206, which is fixedly installed on the side of the clamping mounting plate 201. The driving shaft of the rotating motor 206 passes through the clamping mounting plate 201 and is fixedly connected to the clamping rotating plate 202; During use, the rotating motor 206 drives the clamping rotating plate 202 to rotate.

[0029] Please refer to Figure 1 - Figure 9 The clamping lead screw 203 is a double-threaded lead screw.

[0030] Please refer to Figure 1 - Figure 9 A rotating damper is fixedly sleeved on the rotating shaft of the transmission gear 607, and the rotating damper is fixedly connected to the rotating mounting plate 501.

[0031] A clamping method for a silicon carbide crucible uses the above fixed fixture and includes the following steps; Before clamping the crucible, the rotating mounting plate 501 moves, so that the cleaning brush 502 and the supporting round rod 601 on one side of the rotating mounting plate 501 contact the elastic clamping plate 402. The elastic clamping plate 402 moves towards the crucible, driving the rotating mounting plate 501 to move, so that the cleaning brush 502 and the supporting round rod 601 on the other side of the rotating mounting plate 501 contact the surface of the crucible. The elastic clamping plate 402 stops moving. At this time, the elastic clamping plate 402 is a bent arc-shaped plate, and the rotating mounting plate 501 moves along the side direction of the elastic clamping plate 402, and the rotating mounting plate 501 drives the cleaning brush 502 to move; When clamping the crucible, the rotating mounting plate 501 moves downward, so that the cleaning brush 502 is disengaged from the elastic clamping plate 402. The elastic clamping plate 402 moves towards the crucible, and the elastic clamping plate 402 contacts and presses against the surface of the crucible; After the crucible is clamped, the rotating mounting plate 501 rotates. When the rotating mounting plate 501 rotates, the rotating mounting rod 602 rotates, causing the supporting round rods 601 to move and approach each other. The rotating mounting plate 501 moves towards the crucible, so that the supporting round rods 601 contact and press against the surface of the crucible, and the rotating mounting plate 501 drives the supporting round rods 601 to move upward.

[0032] In the description of this specification, the description with reference to terms such as "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in a suitable manner in any one or more embodiments or examples.

[0033] The preferred embodiments of the invention disclosed above are only used to help explain the invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to the specific embodiments described. Obviously, according to the content of this specification, many modifications and variations can be made. These embodiments are selected and specifically described in this specification to better explain the principles and practical applications of the invention, so that those skilled in the art can well understand and utilize the invention. The invention is only limited by the claims and their full scope and equivalents.

Claims

1. A fixed fixture, comprising a power-assisted robotic arm, a clamping assembly, and a detection and cleaning assembly, characterized in that: The clamping assembly includes a clamping mounting plate, a clamping rotating plate, and a clamping unit. The clamping mounting plate is fixedly connected to the assisting robotic arm, and the clamping rotating plate is rotatably mounted on the side of the clamping mounting plate; The clamping unit includes a clamping moving plate and an elastic clamping plate. The clamping moving plate is arranged on the side of the clamping rotating plate, and the elastic clamping plate is arranged on the side of the clamping moving plate; The detection and cleaning assembly includes a cleaning unit and a detection unit. The cleaning unit includes a rotating mounting plate and a cleaning brush. The detection unit includes a supporting round rod and a rotating mounting rod. The rotating mounting plate is arranged on the side of the elastic clamping plate. The cleaning brushes are fixedly installed on both sides of the rotating mounting plate. The supporting round rod is arranged on both sides of the rotating mounting plate. The rotating mounting rods are rotatably connected to the top and bottom of the supporting round rod, and the rotating mounting rods are rotatably connected to the rotating mounting plate; The clamping moving plate can move to make the elastic clamping plate approach the crucible. When the elastic clamping plate approaches the crucible, the rotating mounting plate can move to make the cleaning brush on one side of the rotating mounting plate contact the supporting round rod and the elastic clamping plate. The movement of the elastic clamping plate drives the movement of the rotating mounting plate. When the cleaning brush on the other side of the rotating mounting plate and the supporting round rod contact the surface of the crucible, the rotating mounting plate can move to drive the cleaning brush to move along the side of the elastic clamping plate and the surface of the crucible. When the elastic clamping plate moves and contacts the surface of the crucible and presses the crucible, the rotating mounting plate moves towards the crucible. When the rotating mounting plate rotates, the rotating mounting rod rotates. When the supporting round rod contacts and presses the surface of the crucible, the rotating mounting plate can move vertically.

2. The fixed fixture according to claim 1, characterized in that, The clamping assembly further includes a clamping lead screw, a clamping motor, and a clamping sliding block. A lead screw installation groove is formed on the side of the clamping rotating plate. The clamping lead screw is rotatably installed in the lead screw installation groove. Two clamping sliding blocks are threadedly sleeved on the clamping lead screw. The clamping sliding blocks are slidably matched with the lead screw installation groove. The clamping motor is fixedly installed at one end of the clamping rotating plate. The driving shaft of the clamping motor passes through the clamping rotating plate and is fixedly connected to the clamping lead screw. Two clamping moving plates are arranged on the side of the clamping rotating plate. The clamping moving plates are respectively fixedly connected to the clamping sliding blocks. The clamping unit further includes a plurality of clamping cylinders. The clamping cylinders are fixedly installed on the side of the clamping rotating plate. The output ends of the clamping cylinders pass through the clamping moving plates and are fixedly connected to the elastic clamping plates.

3. A fixed fixture according to claim 2, wherein, The detection and cleaning assembly further includes a lifting and moving frame, a moving lead screw, a moving motor, a moving slider, and a lifting cylinder. The lifting and moving frame is disposed on the bottom surface of the clamping and moving plate. The lifting cylinder is fixedly installed on the side surface of the clamping and moving plate. The output end of the lifting cylinder is fixedly connected to the lifting and moving frame. The moving lead screw is rotatably installed in the lifting and moving frame. The moving motor is fixedly installed on the side surface of the lifting and moving frame. The driving shaft of the moving motor passes through the lifting and moving frame and is fixedly connected to the moving lead screw. The moving slider is threadedly sleeved on the moving lead screw, and the moving slider is slidably engaged with the lifting and moving frame.

4. A fixed fixture according to claim 3, characterized in that, The cleaning unit further includes a moving sleeve, a moving slide bar, a return spring, a fixed connection block, and a rotating gear. A moving slide hole is formed in the side surface of the moving slider. The moving sleeve passes through the moving slide hole and is slidably connected to the moving slide hole. One end of the moving slide bar is slidably installed in the moving sleeve, and the other end is fixedly connected to the fixed connection block. One end of the return spring is fixedly connected to the moving slide bar, and the other end is fixedly connected to the inner wall end surface of the moving sleeve. The rotating gear is rotatably installed on the top surface of the fixed connection block. The top surface of the rotating gear is fixedly connected to the rotating mounting plate. A rotary damper is fixedly sleeved on the rotating shaft of the rotating gear, and the rotary damper is fixedly connected to the top surface of the fixed connection block.

5. A fixing jig according to claim 4, characterized in that, The detection unit further includes a moving rack, a rack cylinder, a cylinder mounting plate, a rotating gear, a transmission gear, a pulley, a transmission belt, and a rotating rack. The cylinder mounting plate is fixedly sleeved on the moving sleeve. The rack cylinder is fixedly installed on the side surface of the cylinder mounting plate. The output end of the rack cylinder passes through the cylinder mounting plate and is fixedly connected to the moving rack. When the moving rack moves, it can be engaged with the rotating gear. The rotating mounting rod is fixedly connected to the rotating gear at the bottom surface. The rotating mounting plate is rotatably connected to the transmission gear at the bottom surface. The transmission gear is engaged with one of the rotating gears. The pulley is fixedly connected to the bottom surface of the transmission gear. The pulley is fixedly connected to the bottom surface of the rotating gear that is not engaged with the transmission gear. The transmission belt is sleeved on the pulley. The rotating rack is disposed above the moving rack, and the rotating rack is fixedly connected to the moving rack. When the rotating rack moves, it can be engaged with the rotating gear with the pulley.

6. The fixed fixture according to claim 5, wherein, The detection unit further includes a pushing cylinder, a pushing connection plate, and a pushing rod. The pushing cylinder is fixedly installed on the end surface of the moving slider. The pushing connection plate is fixedly connected to the output end of the pushing cylinder. One end of the pushing rod is fixedly connected to the moving sleeve, and the other end is fixedly connected to the pushing connection plate.

7. A fixing jig according to claim 6, wherein, The clamping assembly further includes a rotating motor. The rotating motor is fixedly installed on the side surface of the clamping mounting plate. The driving shaft of the rotating motor passes through the clamping mounting plate and is fixedly connected to the clamping rotating plate.

8. A fixed fixture according to claim 7, characterized in that, The clamping lead screw is a bidirectional thread lead screw.

9. A fixed fixture according to claim 8, characterized in that, A rotary damper is fixedly sleeved on the rotating shaft of the transmission gear, and the rotary damper is fixedly connected to the rotating mounting plate.

10. A clamping method for a silicon carbide crucible, characterized in that, Using the fixing jig according to any one of claims 1-9, comprising the following steps; Before clamping the crucible, the rotating mounting plate moves, so that the cleaning brush and the supporting round rod on one side of the rotating mounting plate contact the elastic clamping plate. The elastic clamping plate moves towards the crucible, driving the rotating mounting plate to move, so that the cleaning brush and the supporting round rod on the other side of the rotating mounting plate contact the surface of the crucible. The elastic clamping plate stops moving. At this time, the elastic clamping plate is a bent arc-shaped plate, and the rotating mounting plate moves along the side direction of the elastic clamping plate, and the rotating mounting plate drives the cleaning brush to move; When clamping the crucible, the rotating mounting plate moves downward, so that the cleaning brush is disengaged from the elastic clamping plate. The elastic clamping plate moves towards the crucible, and the elastic clamping plate contacts and presses against the surface of the crucible; After the clamping of the crucible is completed, the rotating mounting plate rotates. When the rotating mounting plate rotates, the rotating mounting rod rotates, so that the supporting round rods move and approach each other. The rotating mounting plate moves towards the crucible, so that the supporting round rods contact and press against the surface of the crucible, and the rotating mounting plate drives the supporting round rods to move upward.

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