Silicon carbide composite rod end face grinding device

Abstract

The invention belongs to the technical field of silicon carbide composite rod machining, and particularly discloses a silicon carbide composite rod end face grinding device which comprises a supporting and placing frame, supporting frames are connected to the two ends of the supporting and placing frame, a clamping mechanism is connected to the upper end of the supporting and placing frame, and a silicon carbide rod body is clamped at the upper end of the clamping mechanism; the grinding device comprises two supporting frames, the two sides of the upper ends of the two supporting frames are slidably connected with two sets of grinding mechanisms, each grinding mechanism comprises two auxiliary sliding rails, the upper ends of the two auxiliary sliding rails are slidably connected with auxiliary sliding blocks, the upper ends of the two auxiliary sliding blocks are connected with a sliding plate, and the upper ends of the two auxiliary sliding blocks are connected with the sliding plate. Through cooperative arrangement of the grinding mechanism, the adjusting mechanism and the air inlet mechanism, integration of procedures of end face grinding and inner cavity cleaning is achieved, the problem of internal pollution in the silicon carbide rod machining process is effectively solved, and the machining quality, the product cleanliness and the production efficiency are remarkably improved.

Description

TECHNICAL FIELD

[0001] The application belongs to the field of silicon carbide composite rod processing, and particularly discloses a silicon carbide composite rod end face grinding device. BACKGROUND

[0002] The silicon carbide composite rod is an advanced engineering ceramic material with a silicon carbide core matrix. It is established as a key component in high-temperature industries such as metallurgy, glass kiln, thermocouple protection sleeve, high-end thermal equipment and harsh wear-resistant scenes due to its hardness exceeding that of metal, excellent high-temperature resistance and thermal shock resistance, and outstanding chemical inertness. In these applications, the end face often serves as the core sealing interface or bearing surface. The geometric precision, flatness, perpendicularity and edge integrity of the end face directly determine the sealing reliability, connection strength and service life of the entire system.

[0003] Currently, when the end face of a hollow silicon carbide composite rod is precisely ground, two key processes of end face grinding and edge chamfering need to be completed in sequence. However, there is a serious process coupling problem between the two processes: a large amount of high-hardness silicon carbide debris generated during end face grinding can easily invade and remain in the hollow inner cavity of the workpiece. When entering the chamfering process, these inner cavity residues can cause a chain of processing defects: on the one hand, the debris can be wrapped by the rotating chamfering tool, causing secondary scratches on the brittle edge of the workpiece; on the other hand, the debris attached to the inner wall can interfere with the processing area, causing abnormal wear of the tool, instability of the processing process, and thus causing quality problems such as inconsistent chamfer size and surface roughness, resulting in fluctuations in the processing quality of the hollow silicon carbide composite rod, making it difficult to improve the product yield, and becoming a major technical bottleneck for large-scale production. SUMMARY

[0004] The purpose of the present application is to solve the problems existing in the prior art and provide a silicon carbide composite rod end face grinding device.

[0005] To achieve the above purpose, the present application provides a silicon carbide composite rod end face grinding device, which comprises a supporting frame, the two ends of the supporting frame are connected with supporting frames, the upper end of the supporting frame is connected with a clamping mechanism, the upper end of the clamping mechanism clamps a silicon carbide rod body, the upper ends of the two supporting frames are slidably connected with grinding mechanisms on both sides, and the number of grinding mechanisms is two groups.

[0006] The grinding mechanism comprises an auxiliary sliding rail, the number of auxiliary sliding rails is two, the upper ends of the two auxiliary sliding rails are slidably connected with auxiliary sliding blocks, the upper ends of the two auxiliary sliding blocks are connected with a sliding plate, one side of the upper end of the sliding plate is connected with a box, the upper parts of the two sides of the box are provided with through holes, one inner wall of the through hole is rotatably connected with a rotating disc, one side of the rotating disc is connected with a first connecting wheel, and one side of the upper end of the sliding plate is connected with a driving mechanism.

[0007] The first connecting wheel inner wall is connected with a rotating pipe, one end of the rotating pipe extends to one side of the box through two through holes, the middle of one end of the rotating pipe is connected with a first rotating joint, one end of the rotating pipe is connected with a cleaning mechanism, the outer wall of the rotating pipe is connected with a flange on one side, the flange is connected with a grinding disc on one side, the grinding disc is sleeved on the outer wall of the rotating pipe, the grinding disc is in contact with one end of the silicon carbide rod on one side, and the box is connected with a material collecting mechanism on one side.

[0008] The side of the supporting frame is connected with an air inlet mechanism, and the two ends of the air inlet mechanism are connected with one end of the two grinding mechanisms.

[0009] Preferably, the clamping mechanism comprises a driving slide rail, the number of the driving slide rail is two groups, two driving slide rails are uniformly and slidably connected on both sides of the upper end of the driving slide rail, the upper end of each of the two driving slide rails is connected with a driving block, the upper end of each of the two driving slide rails is connected with another driving block, the inner wall of each of the two housings is connected with a gas cylinder on both sides of the lower end, the upper end of each of the two gas cylinders extends to above the two housings, the upper end of each of the two gas cylinders is connected with a clamping block, the clamping block on one side is semi-arc in structure, the silicon carbide rod is connected between the two clamping blocks, and the flexible pad is connected to one side of the clamping block.

[0010] Preferably, the adjusting mechanism comprises a fixed block, the number of the fixed block is two groups, a through hole is formed in the middle of the inner wall of each of the two fixed blocks, a screw rod is rotatably connected in the through hole, a supporting plate is connected to the lower part of both sides of the inner wall of the supporting frame, a moving motor is connected to one side of the upper end of the supporting plate, a belt pulley is connected to the outer wall of the output end of the moving motor and the outer wall of the middle of the screw rod, the two belt pulleys are drivingly connected through a transmission belt, the screw rod is provided with a bidirectional thread, and the outer wall of the screw rod is threadedly connected with a moving block on both sides.

[0011] Preferably, the driving mechanism comprises a driving motor, the output end of the driving motor is connected with a second connecting wheel, and the first connecting wheel and the second connecting wheel are drivingly connected through a connecting belt.

[0012] Preferably, the air inlet mechanism comprises an air inlet pipe, one end of the air inlet pipe extends to the inside of the supporting frame, the air inlet pipe is connected with a flexible pipe at both ends, the two flexible pipes are connected with a gas conveying pipe at both ends, one end of each of the two gas conveying pipes extends to the upper end of each of the two supporting frames, one end of each of the two gas conveying pipes is connected with a first rotating joint of each of the two grinding mechanisms, and the outer wall of the gas conveying pipe is connected with the box on one side through a mounting block.

[0013] Preferably, the cleaning mechanism comprises a connecting pipe, an air jet head is axially connected to one side of the outer wall of the connecting pipe, the air jet head is arranged in an inclined manner, a fixing pipe is connected to the middle of one end of the air jet head, a second rotary joint is connected to one end of the fixing pipe, a mounting pipe is connected to one end of the second rotary joint, and a shrinkable air bag is connected to one end of the mounting pipe.

[0014] Preferably, an air injection valve is connected to the outer wall of the mounting pipe, a sleeve is connected to the outer wall of the mounting pipe, the sleeve is sleeved to the outer wall of the connecting pipe, guide blocks are connected to one side of the inner wall of the sleeve, guide grooves are formed in the connecting pipe corresponding to the guide blocks, and the guide blocks slide in the guide grooves.

[0015] Preferably, the collecting mechanism comprises a connecting cover, the polishing disc is located in the connecting cover, an air suction pipe is connected to the middle of the upper end of the connecting cover, a discharge pipe is connected to the middle of the lower end of the connecting cover, the discharge pipe is arranged in an L-shaped structure, a discharge valve is connected to one side of the outer wall of the discharge pipe, a mounting ring is flange-connected to one side of the connecting cover, and blocking brushes are circumferentially connected to the inner wall of the mounting ring.

[0016] Compared with the prior art, the present application has the following beneficial effects:

[0017] Through the setting of the cleaning mechanism, when the end face of the silicon carbide rod is ground, the shrinkable air bag is inflated by opening the air injection valve, a reliable dynamic sealing interval is formed on the inner wall of the hollow rod, most of the grinding debris is effectively isolated in the limited cavity near the port, the spread of pollutants to the deep cavity of the pipe is prevented from the source, and after the grinding is completed, the cleaning mechanism is withdrawn synchronously with the grinding mechanism, the air jet head sprays an inclined air flow by switching the air path, the debris adhering to the inner wall of the hollow rod is blown out of the pipe opening along the exit path, the problem of grinding debris polluting the inner cavity of the workpiece is solved, a clean and pollution-free internal environment is provided for subsequent chamfering, assembly or direct use, and the processing quality and reliability of the product are significantly improved.

[0018] Through the collecting mechanism, efficient collection of escaped dust is realized, when the cleaning mechanism blows the debris out of the pipe opening, a stable negative pressure state is formed in the connecting cover to actively suck the blown debris and the dust generated during grinding into the cover, the blocking brushes on the mounting ring are in flexible contact with the outer circle of the rod, dust escape is effectively prevented, the fine dust sucked in is sent to subsequent dust removal treatment through the air suction pipe, and the larger particles are discharged through the discharge pipe, the cleanliness of the equipment and the working area is maintained, and the health and safety of the operators are ensured. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the device of the present application;

[0020] Figure 2 is a whole sectional view of the device of the present application;

[0021] Figure 3 is a schematic view of the connecting structure of the gas feeding mechanism and the two sharpening mechanisms of the present application;

[0022] Figure 4 is a schematic view of the connecting structure of the clamping mechanism of the present application;

[0023] Figure 5 is a schematic view of the connecting structure of the lead screw, the moving block and the box of the present application;

[0024] Figure 6 is a schematic view of the connecting structure of the rotary tube, the first rotary joint and the gas feeding tube of the present application;

[0025] Figure 7 is a schematic view of the connecting structure of the cleaning mechanism of the present application;

[0026] Figure 8 is a schematic view of the internal structure of the connecting cover of the present application.

[0027] In the figure: 1, the supporting frame; 2, the supporting frame; 3, the driving slide rail; 4, the shell; 5, the cylinder; 6, the clamping block; 7, the silicon carbide rod; 8, the fixed block; 9, the lead screw; 10, the supporting plate; 11, the moving motor; 12, the pulley; 13, the transmission belt; 14, the auxiliary slide rail; 15, the sliding plate; 16, the moving block; 17, the box; 18, the rotary disc; 19, the first connecting wheel; 20, the driving motor; 21, the second connecting wheel; 22, the connecting belt; 23, the rotary tube; 24, the gas inlet tube; 25, the flexible tube; 26, the gas feeding tube; 27, the first rotary joint; 28, the connecting tube; 29, the gas jet head; 30, the fixed tube; 31, the second rotary joint; 32, the shrinkable air bag; 33, the sleeve; 34, the guide block; 35, the flange; 36, the polishing disc; 37, the connecting cover; 38, the air extraction tube; 39, the discharge tube; 40, the mounting ring; 41, the blocking brush. DETAILED DESCRIPTION

[0028] In order to more clearly understand the above-mentioned purposes, features and advantages of the present application, the present application will be further described in detail below in combination with the drawings and specific embodiments.

[0029] In the following description, a lot of specific details are set forth in order to provide a thorough understanding of the present application, however, the present application can also be implemented in other ways different from those described herein, therefore, the present application is not limited to the specific embodiments disclosed below.

[0030] As Figures 1-8The device for grinding the end face of a silicon carbide composite rod shown includes a support frame 1, with support frames 2 connected to both ends of the support frame 1. A clamping mechanism is connected to the upper end of the support frame 1, and the upper end of the clamping mechanism clamps the silicon carbide rod 7. Grinding mechanisms are slidably connected to both sides of the upper end of the two support frames 2. There are two sets of grinding mechanisms, which are used to grind the ends of the silicon carbide rod 7. An air inlet mechanism is connected to one side of the support frame 1, and the two ends of the air inlet mechanism are connected to one end of the two grinding mechanisms. An adjustment mechanism is connected to the lower part of the two support frames 2, and the adjustment mechanism is used to adjust the distance between the two grinding mechanisms.

[0031] The clamping mechanism enables automatic centering, flexible clamping, and height adjustment of the silicon carbide rod 7, ensuring that its axis is aligned with the grinding disc 36. The two grinding mechanisms can perform synchronous and equal precision grinding on both ends of the rod. The air intake mechanism provides controlled-pressure compressed air to the cleaning unit inside the grinding mechanism. The adjustment mechanism can synchronously control the relative distance between the two grinding mechanisms.

[0032] like Figures 1-4 As shown: The clamping mechanism includes a drive slide rail 3, and there are two sets of drive slide rails 3. Drive sliders are evenly slidably connected to the upper ends of the two drive slide rails 3. The upper ends of the two drive sliders and the upper ends of the other two drive sliders are connected to housings 4. Cylinders 5 are connected to the lower ends of the inner walls of the two housings 4. The upper ends of the two cylinders 5 extend through to the top of the two housings 4. Clamping blocks 6 are connected to the upper ends of the two cylinders 5 and the upper ends of the other two cylinders 5. One side of the two clamping blocks 6 is set in a semi-arc structure. A silicon carbide rod 7 is connected between the two clamping blocks 6. A flexible pad is connected to one side of the two clamping blocks 6.

[0033] Two sets of drive slide rails 3 are used to drive two clamping blocks 6 to move in opposite directions or in opposite directions in the horizontal direction to complete the radial alignment and tension adjustment of the silicon carbide rod 7. Two sets of cylinders 5 are used to synchronously drive the two clamping blocks 6 to rise and fall in the vertical direction to precisely adjust the center height of the rod.

[0034] like Figures 2-3 As shown: The adjustment mechanism includes two sets of fixed blocks 8. Each fixed block 8 has a through hole in the middle of its inner wall. A lead screw 9 is rotatably connected to the inside of the through hole via a bearing. The lower part of both sides of the inner wall of the support frame 1 is connected to a support plate 10. A moving motor 11 is connected to one side of the upper end of the support plate 10. The outer wall of the output end of the moving motor 11 is connected to a pulley 12 in the middle of the outer wall of the lead screw 9. The two pulleys 12 are connected by a transmission belt 13. The lead screw 9 is set with a bidirectional thread. Moving blocks 16 are threaded to both sides of the outer wall of the lead screw 9. The upper ends of the two moving blocks 16 are respectively connected to the lower middle of the slide plates 15 of the two grinding mechanisms.

[0035] When the moving motor 11 rotates, the moving blocks 16 on both sides will produce precise linear motion in opposite directions along the axis of the lead screw 9. Through the connection between the moving blocks 16 and the slide plate 15, it is directly converted into the synchronous opposite or back-to-back movement of the two sets of grinding mechanisms. In the processing stage, the grinding disc 36 contacts the end face of the rod and grinds it. In the cleaning stage, the grinding mechanism is controlled to exit at a uniform speed.

[0036] like Figures 4-6 As shown: The grinding mechanism includes two auxiliary slide rails 14. Each of the two auxiliary slide rails 14 has an auxiliary slider slidably connected to its upper end. The upper ends of the two auxiliary sliders are connected to a slide plate 15. A box 17 is connected to one side of the upper end of the slide plate 15. Through holes are opened on the upper parts of both sides of the box 17. A rotating disk 18 is rotatably connected to the inner wall of one of the through holes. A first connecting wheel 19 is connected to one side of the rotating disk 18. A drive mechanism is connected to one side of the upper end of the slide plate 15. A rotating tube 23 is connected to the inner wall of the first connecting wheel 19. One end of the rotating tube 23 extends through the two through holes to one side of the box 17. A first rotating joint 27 is connected to the middle of one end of the rotating tube 23. A cleaning mechanism is connected to one end of the rotating tube 23. A flange 35 is connected to one side of the outer wall of the rotating tube 23. A grinding disc 36 is connected to one side of the flange 35. The grinding disc 36 is sleeved on the outer wall of the rotating tube 23. One side of the grinding disc 36 contacts one end of the silicon carbide rod 7. A material collection mechanism is connected to one side of the box 17.

[0037] The drive mechanism drives the rotating tube 23 to rotate at high speed through the first connecting wheel 19, which in turn drives the flange 35 and the grinding disc 36 to grind the end face of the workpiece. One end of the rotating tube 23 is connected to the stationary air intake mechanism through the first rotating joint 27, and the other end delivers compressed air to the front cleaning mechanism, realizing a dynamic sealed connection between the rotating tool and the stationary air source.

[0038] The cleaning mechanism uses the airflow to perform airbag sealing and jet cleaning, while the collecting mechanism can instantly form a local negative pressure closed zone during processing to efficiently collect splashed dust.

[0039] like Figures 5-6 As shown: The drive mechanism includes a drive motor 20, the output end of which is connected to a second connecting wheel 21. The first connecting wheel 19 and the second connecting wheel 21 are connected by a connecting belt 22. The air intake mechanism includes an air intake pipe 24. One end of the air intake pipe 24 is connected to an external air intake device to inject air into the two grinding mechanisms. One end of the air intake pipe 24 extends through into the inside of the support frame 1. Both ends of the air intake pipe 24 are connected to flexible pipes 25. Both ends of the two flexible pipes 25 are connected to air supply pipes 26. One end of the two air supply pipes 26 extends through to the upper end of the two support frames 2. One end of the two air supply pipes 26 is connected to one end of the first rotating joint 27 of the two grinding mechanisms. One side of the outer wall of the air supply pipe 26 is connected to one side of the box 17 through a mounting block.

[0040] The driving motor 20 transmits power to the rotating pipe 23 through the belt transmission system composed of the second connecting wheel 21, the connecting belt 22 and the first connecting wheel 19, thereby driving the polishing disc 36 to rotate at high speed to perform end face grinding;

[0041] The compressed air provided by the external air source flows through the air inlet pipe 24, the flexible pipe 25 and the air conveying pipe 26 in sequence, and finally enters the inside of the rotating pipe 23 rotating at high speed through the first rotating joint 27. The flexible pipe 25 compensates for the displacement generated in the axial adjustment process of the grinding mechanism, thereby ensuring the reliability and durability of the air path connection.

[0042] As shown in Figure 7 The cleaning mechanism includes a connecting pipe 28, the outer wall of the connecting pipe 28 is axially connected with a jet head 29, the outer wall of the jet head 29 is connected with a jet valve, the jet head 29 is arranged in an inclined manner, the middle of one end of the jet head 29 is connected with a fixing pipe 30, one end of the fixing pipe 30 is connected with a second rotating joint 31, one end of the second rotating joint 31 is connected with a mounting pipe, one end of the mounting pipe is connected with a shrinkable air bag 32, the shrinkable air bag 32 has high temperature resistance, the shrinkable air bag 32 is connected with the mounting pipe through a flange, the shrinkable air bag 32 is replaceable, the outer wall of the mounting pipe is connected with a gas injection valve, one side of the gas injection valve is connected with a pressure relief valve, the outer wall of the mounting pipe is connected with a sleeve 33, the sleeve 33 is sleeved to the outer wall of the connecting pipe 28, the inner wall of the sleeve 33 is connected with a plurality of guide blocks 34 on one side, a plurality of guide grooves are formed in the outer wall of the connecting pipe 28 corresponding to the plurality of guide blocks 34, and the plurality of guide blocks 34 slide in the guide grooves;

[0043] During the grinding stage, the gas injection valve is opened and the jet valve is closed, the compressed air makes the shrinkable air bag 32 expand through the second rotating joint 31, so that the shrinkable air bag 32 tightly adheres to the inner wall of the rod body to form a dynamic sealing area, which effectively blocks the invasion of grinding dust into the deep part; when cleaning is needed after grinding, the gas injection valve is closed and the pressure relief valve is opened to make the shrinkable air bag 32 shrink, and the jet valve is opened at the same time, and the airflow is turned to be sprayed from the fixed inclined jet head 29, and the jet head 29 can continuously spray the inclined airflow with constant direction during the whole process of the grinding mechanism and the cleaning mechanism synchronously exiting the inner cavity of the rod body, which is like a moving air curtain, and the debris adhered to the inner wall is directionally and efficiently swept to the pipe opening.

[0044] When the rotating pipe 23 drives the connecting pipe 28 to rotate as a whole, the shrinkable air bag 32 is in contact with the inner wall of the silicon carbide rod body 7 after the shrinkable air bag 32 is injected with gas, and the second rotating joint 31 allows the mounting pipe and the shrinkable air bag 32 to remain stationary, thereby avoiding the rotation and wear of the shrinkable air bag 32.

[0045] As shown in Figure 8The shown: aggregate mechanism includes connecting cover 37, polishing disc 36 is located inside connecting cover 37, the upper end of connecting cover 37 is connected with suction pipe 38, the upper end of suction pipe 38 is connected with dust removal equipment and suction equipment, so that the inside of connecting cover 37 forms a negative pressure state, the lower end of connecting cover 37 is connected with discharge pipe 39, discharge pipe 39 is arranged in L-shaped structure, discharge valve is connected on the outer wall of discharge pipe 39, the flange of one side of connecting cover 37 is connected with mounting ring 40, the inner wall of mounting ring 40 is connected with blocking brush 41 in the circumferential direction;

[0046] Through the connecting cover 37, the dust splashed in the polishing process is directionally sucked, and the spread to the workshop environment is prevented, the discharge pipe 39 is matched with the valve, is used for collecting and periodically discharging the relatively coarse particles settled at the bottom of the cover, and the blocking brush 41 on the mounting ring 40 effectively blocks the main channel of the dust escaping from the gap while allowing the axial movement of the workpiece, and the debris swept out from the inner cavity of the rod body by the cleaning mechanism can be immediately sucked and treated.

[0047] It should be noted that the specific circuit connection and control mode of the moving motor 11, the driving motor 20, the cylinder 5 and other execution elements involved in the embodiments of the present application are conventional technical means in the art, belong to the prior art category, and will not be described here.

[0048] Working principle: the operator preliminarily places the to-be-processed silicon carbide rod body 7 between the two clamping blocks 6, first, the driving slide rail 3 works, drives the slide block, the shell 4 and the clamping block 6 on it to move towards each other, so that the two semi-arc-shaped clamping blocks 6 approach from both sides and preliminarily hold the silicon carbide rod body 7, completing the radial centering in the horizontal direction, then the cylinder 5 works, synchronously lifting or lowering the two clamping blocks 6 and the silicon carbide rod body 7 clamped thereby, precisely adjusting the height of the workpiece in the vertical direction, until the axis of the silicon carbide rod body 7 and the rotation axes of the rotating pipes 23 and the polishing discs 36 of the two sides of the grinding mechanism achieve accurate spatial coincidence.

[0049] After the workpiece is positioned, the adjusting mechanism starts, the moving motor 11 drives the screw rod 9 to rotate through the belt pulley 12 and the transmission belt 13, drives the two sides of the moving block 16 and the entire grinding mechanism fixedly connected thereto to move synchronously and stably along the auxiliary slide rail 14 to the center of the workpiece, so that the connecting pipe 28 and the air jet head 29 at the front end of the grinding mechanism are stably inserted into the hollow interior of the silicon carbide rod body 7 to a predetermined depth, and the polishing disc 36 mounted at the end of the rotating pipe 23 just contacts or reaches the preset micro-distance position from the end face of the rod body.

[0050] Before the polishing disc 36 starts to rotate, the gas injection valve is opened, and the gas injection valve is closed, the compressed air enters the rotating pipe 23 through the air inlet pipe 24, the flexible pipe 25, the gas conveying pipe 26, the first rotating joint 27, the connecting pipe 28, and the branch pipe, and then enters the shrinkable air bag 32. The shrinkable air bag 32 is rapidly radially expanded under the action of air pressure and forms a full circumferential tight sealing with the inner wall of the silicon carbide rod body 7.

[0051] After the sealing is established, the driving mechanism is started, the driving motor 20 drives the rotating pipe 23 and the polishing disc 36 to rotate at high speed through the transmission of the second connecting wheel 21, the connecting belt 22 and the first connecting wheel 19. At the same time, the two polishing discs 36 start to perform equal and synchronous precision grinding on the two end faces of the silicon carbide rod body 7, and the shrinkable air bag 32 maintains pressure during the entire grinding process.

[0052] When the end face grinding reaches the preset size or surface quality requirement, the polishing disc 36 stops rotating, the pressure relief valve associated with the gas injection valve is opened, the gas in the shrinkable air bag 32 is discharged, the shrinkable air bag 32 shrinks and restores, and the shrinkable air bag 32 is completely separated from the inner wall of the silicon carbide rod body 7. The gas injection valve is then closed, and the gas injection valve is immediately opened. The gas enters the rotating pipe 23 through the air inlet pipe 24, the flexible pipe 25, the gas conveying pipe 26 and the first rotating joint 27, and the gas in the rotating pipe 23 enters the plurality of gas injection heads 29 through the connecting pipe 28.

[0053] The adjusting mechanism is reversed, and the two sides of the grinding mechanism are driven to move backward along the original feeding path at a uniform speed. The polishing disc 36, the connecting pipe 28 and the gas injection head 29 move synchronously. During the movement, the compressed air is sprayed at high speed from the inclined nozzles of the gas injection head 29, forming a moving cleaning air curtain that continuously blows all the debris on the inner wall of the silicon carbide rod body 7 to the pipe opening; these blown debris are immediately captured by the connecting cover 37 in a continuous negative pressure state; fine dust is filtered and discharged by the external dust removal equipment through the air exhaust pipe 38; larger particles are collected through the discharge pipe 39 under the action of gravity. The blocking brush 41 at the front end of the connecting cover 37 effectively prevents dust from escaping from the gap between the workpiece and the cover body.

[0054] The above shows and describes the basic principles, main features and advantages of the present application. Those skilled in the art should understand that the present application is not limited to the above embodiments, and the above embodiments and descriptions in the specification are only the principles of the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the claimed present application.

Claims

1. A device for grinding the end face of a silicon carbide composite rod, comprising a support frame (1), characterized in that, The support frame (1) is connected to support frames (2) at both ends. The upper end of the support frame (1) is connected to a clamping mechanism. The upper end of the clamping mechanism clamps a silicon carbide rod (7). The upper sides of the two support frames (2) are slidably connected to a grinding mechanism. The number of grinding mechanisms is two sets. The grinding mechanism includes two auxiliary slide rails (14). Each of the two auxiliary slide rails (14) has an auxiliary slider slidably connected to its upper end. Each of the two auxiliary sliders has a slide plate (15) connected to its upper end. A box (17) is connected to one side of the upper end of the slide plate (15). Through holes are provided on the upper parts of both sides of the box (17). A rotating disk (18) is rotatably connected to the inner wall of one of the through holes. A first connecting wheel (19) is connected to one side of the rotating disk (18). A drive mechanism is connected to one side of the upper end of the slide plate (15). The inner wall of the first connecting wheel (19) is connected to a rotating tube (23). One end of the rotating tube (23) extends through two through holes to one side of the box (17). The middle of one end of the rotating tube (23) is connected to a first rotating joint (27). One end of the rotating tube (23) is connected to a cleaning mechanism. One side of the outer wall of the rotating tube (23) is connected to a flange (35). One side of the flange (35) is connected to a grinding disc (36). The grinding disc (36) is sleeved on the outer wall of the rotating tube (23). One side of the grinding disc (36) is in contact with one end of the silicon carbide rod (7). One side of the box (17) is connected to a material collection mechanism. An air intake mechanism is connected to one side of the support frame (1), and the two ends of the air intake mechanism are connected to one end of the two grinding mechanisms. An adjustment mechanism is connected to the bottom of the two support frames (2).

2. The silicon carbide composite rod end face grinding device according to claim 1, characterized in that, The clamping mechanism includes a drive slide rail (3), and there are two sets of drive slide rails (3). Drive sliders are evenly connected to the upper sides of the two drive slide rails (3). The upper ends of the two drive sliders and the upper ends of the other two drive sliders are connected to a housing (4). The lower ends of the inner walls of the two housings (4) are connected to cylinders (5). The upper ends of the two cylinders (5) extend through to the top of the two housings (4). The upper ends of the two cylinders (5) and the upper ends of the other two cylinders (5) are connected to clamping blocks (6). One side of the two clamping blocks (6) is set in a semi-arc structure. A silicon carbide rod (7) is connected between the two clamping blocks (6). A flexible pad is connected to one side of the two clamping blocks (6).

3. The silicon carbide composite rod end face grinding device according to claim 1, characterized in that, The adjustment mechanism includes a fixed block (8), and there are two sets of fixed blocks (8). The inner wall of each fixed block (8) has a through hole in the middle. The screw (9) is rotatably connected to the inside of the through hole through a bearing. The lower part of the inner wall of the support frame (1) is connected to a support plate (10). The upper end of the support plate (10) is connected to a moving motor (11). The outer wall of the output end of the moving motor (11) is connected to the middle of the outer wall of the screw (9) with a pulley (12). The two pulleys (12) are connected by a transmission belt (13). The screw (9) is set with a bidirectional thread. The outer wall of the screw (9) is threaded with a moving block (16) on both sides. The upper end of the two moving blocks (16) is connected to the middle of the lower end of the slide plate (15) of the two grinding mechanisms respectively.

4. The silicon carbide composite rod end face grinding device according to claim 1, characterized in that, The driving mechanism includes a drive motor (20), the output end of which is connected to a second connecting wheel (21), and the first connecting wheel (19) and the second connecting wheel (21) are connected by a connecting belt (22).

5. The silicon carbide composite rod end face grinding device according to claim 1, characterized in that, The air intake mechanism includes an air intake pipe (24), one end of which extends through into the interior of the support frame (1). Both ends of the air intake pipe (24) are connected to flexible pipes (25), and both ends of the two flexible pipes (25) are connected to air delivery pipes (26). One end of the two air delivery pipes (26) extends through to the upper end of the two support frames (2), and one end of the two air delivery pipes (26) is connected to one end of the first rotating joint (27) of the two grinding mechanisms. One side of the outer wall of the air delivery pipe (26) is connected to one side of the box body (17) through an installation block.

6. The silicon carbide composite rod end face grinding device according to claim 1, characterized in that, The cleaning mechanism includes a connecting pipe (28), and an air jet (29) is axially connected to one side of the outer wall of the connecting pipe (28). The air jet (29) is inclined. A fixing pipe (30) is connected to the middle of one end of the air jet (29). A second rotating joint (31) is connected to one end of the fixing pipe (30). An installation pipe is connected to one end of the second rotating joint (31). A contraction airbag (32) is connected to one end of the installation pipe.

7. The silicon carbide composite rod end face grinding device according to claim 6, characterized in that, An air injection valve is connected to the outer wall of the installation pipe, and a sleeve (33) is connected to the outer wall of the installation pipe. The sleeve (33) is fitted onto the outer wall of the connecting pipe (28). A guide block (34) is connected to one side of the inner wall of the sleeve (33). A guide groove is opened on the outer wall of the connecting pipe (28) corresponding to multiple guide blocks (34), and multiple guide blocks (34) slide inside the guide groove.

8. The silicon carbide composite rod end face grinding device according to claim 1, characterized in that, The material collection mechanism includes a connecting cover (37), the grinding disc (36) is located inside the connecting cover (37), the upper middle part of the connecting cover (37) is connected to an air extraction pipe (38), the lower middle part of the connecting cover (37) is connected to a discharge pipe (39), the discharge pipe (39) is arranged in an L-shape, a discharge valve is connected to one side of the outer wall of the discharge pipe (39), a mounting ring (40) is connected to one side flange of the connecting cover (37), and a blocking brush (41) is connected to the inner wall of the mounting ring (40) in a circumferential direction.

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