Grinding device for graphene superconductive heat floor heating pipe processing

Abstract

The application relates to the field of graphene superconducting heat ground heating pipe processing technology, in particular to a grinding device for graphene superconducting heat ground heating pipe processing, which comprises a table top, a grinding assembly, a hole expanding assembly and a driving assembly, the grinding assembly is rotationally arranged on the top of the table top and is used for grinding graphene superconducting heat ground heating pipe processing. Through integration of the two processes of inner wall grinding and end hole expanding in the same device, continuous processing of the pipe material can be completed under single clamping and positioning, secondary transfer and repeated clamping are not needed, the operation process is compressed, the overall processing rhythm of the pipe material is improved, the large-scale production demand is adapted, the cumulative tolerance caused by multiple clamping is avoided, the coaxiality of the grinding area and the hole expanding area is ensured, the hole expanding eccentricity, the uneven pipe wall thickness and other processing problems are reduced, the product yield is effectively improved, single equipment also reduces the workshop production area occupation, reduces the equipment procurement and operation and maintenance control cost, and reduces the enterprise production investment.

Description

Technical Field

[0001] This invention relates to the field of graphene superconducting thermal floor heating pipe processing technology, specifically to a grinding device for processing graphene superconducting thermal floor heating pipes. Background Technology

[0002] Graphene superconducting underfloor heating pipes possess excellent thermal conductivity, high mechanical strength, and superior aging resistance, making them widely used in underfloor heating systems. During the actual installation and connection of these pipes, one end typically needs to be enlarged to allow the other pipe to be inserted into the enlarged end. The connection is then sealed using soldering to ensure a tight seal and prevent leakage during heating. After the graphene underfloor heating pipes are cut, wear from the cutting tool, instantaneous cutting stress, and the inherent material properties of the pipes can easily cause metal burrs, sharp edges, and irregular protrusions to form on the inner wall of the processed end. If enlargement is performed directly without pretreatment... During the forming process, the reaming tool will forcibly squeeze and scrape the hard burrs on the inner wall during the radial expansion operation. On the one hand, the hard edges of the burrs are likely to embed into the inner wall of the pipe, damaging the microstructure of the inner wall substrate in the reaming area, causing micro-cracks, local collapses and scratches on the inner wall of the pipe, resulting in uneven wall thickness distribution at the reaming port. On the other hand, the free burrs that fall off are likely to remain on the inner wall of the reaming, causing the pipe fitting gap to become discrete, and the two pipes cannot achieve surface fit after being joined. Therefore, before the reaming process, the inner wall of the end of the pipe to be processed needs to be ground and leveled with high precision to completely remove the burrs and protruding structures on the inner wall, and to regulate the shape of the inner wall of the pipe opening, so as to provide a qualified processing benchmark for subsequent reaming and welding operations. Currently, the industry commonly uses a split processing method for the two processing steps of deburring and grinding the inner wall of the underfloor heating pipe ends and expanding the end holes. This involves using two independent dedicated processing machines to separately complete the inner wall grinding and leveling and the end hole expansion and shaping operations. This processing method has several substantial technical defects: Firstly, the two core processing steps are isolated from each other and cannot be carried out in a synchronized and coordinated manner. After the inner wall of the pipe is ground, the material needs to be transferred manually or by conveying equipment, and secondary clamping and benchmark positioning are also required. The operation process is redundant and complex, which greatly reduces the overall processing cycle of the pipe and cannot be adapted to large-scale mass production conditions. Secondly, after multiple disassembly, transportation and repeated clamping of the pipe, the accumulated tolerance of the assembly is easy to generate, which makes it impossible to unify the grinding processing datum and the hole expansion processing datum. After processing, the coaxiality deviation between the grinding area and the hole expansion area of ​​the pipe is large, which can easily cause processing defects such as hole expansion eccentricity, uneven pipe wall thickness, and pipe opening cracks, making it difficult to control the product yield. Third, the production of multiple independent machines not only occupies a large amount of effective production area in the workshop, but also increases the costs of equipment procurement, daily operation and maintenance, and manual management, significantly increasing the company's production input. In view of this, we propose a grinding device for processing graphene superconducting thermal floor heating pipes to solve the above-mentioned technical problems. Summary of the Invention

[0003] The purpose of this invention is to provide a grinding apparatus for processing graphene superconducting thermal floor heating pipes, so as to solve the problems mentioned above.

[0004] To achieve the above objectives, the present invention provides the following technical solution: a grinding device for processing graphene superconducting thermal floor heating pipes, comprising: mesa; The grinding assembly is rotatably mounted on the top of the table and is used for grinding graphene superconducting heat-conducting underfloor heating pipes. The grinding assembly can be raised and lowered relative to the table and is suitable for removal from the inside of the ground graphene superconducting heat-conducting underfloor heating pipe. The hole-expanding component is rotatably mounted on the top of the table and is used for expanding the hole after grinding in the processing of graphene superconducting thermal floor heating pipes. The hole-expanding component can be raised and lowered relative to the table, and the raising and lowering direction is opposite to that of the grinding component. In the initial state, the hole-expanding component is located at the bottom of the grinding component. When the grinding component is withdrawn from the inside of the ground graphene superconducting thermal floor heating pipe, the hole-expanding component moves upward, thereby expanding the hole at the end of the ground graphene superconducting thermal floor heating pipe. The drive assembly is fixedly mounted on the bottom of the table and is used to drive the grinding assembly and the reaming assembly to rotate.

[0005] As a preferred embodiment of the present invention, the grinding assembly includes several annularly distributed grinding blocks. The top of each grinding block has a chamfered edge, and a connecting seat is fixedly provided at the bottom of each grinding block. The grinding blocks and the connecting seats are detachably assembled. Connecting plates are fixedly provided at both ends of the side of the connecting seat away from the grinding blocks. Sliding seats are concentrically provided at the bottom of several grinding blocks. A guide groove is provided through the top of the sliding seat at an angle equal to that of the grinding blocks. At least two movable connecting rods are hinged between the guide groove and the connecting plate. Several leaf springs are fixedly provided around the sliding seats. The end of the connecting seat away from the grinding blocks abuts against the side of the leaf spring. A waist groove is provided through the side of the leaf spring near the connecting seat. A locking bolt is inserted into the waist groove. The locking bolt is threaded onto the end of the connecting seat. The leaf spring and the connecting seat can slide relative to each other.

[0006] As a preferred embodiment of the present invention, a movable block is fixedly provided at the bottom of the sliding seat, and an inner and outer double spline bushing is provided inside the movable block. The inner and outer double spline bushings are rotatably assembled on the table surface through bearings and penetrate through the top and bottom of the table surface. The movable block is axially movable along the inner and outer double spline bushings, and the movable block is circumferentially locked with the inner and outer double spline bushings.

[0007] As a preferred embodiment of the present invention, the reaming assembly includes a main spline shaft disposed inside the inner and outer double spline bushings. The main spline shaft passes through the top and bottom of the inner and outer double spline bushings. The main spline shaft is axially movable along the inner and outer double spline bushings and is circumferentially locked with the inner and outer double spline bushings. A reaming cone is fixedly mounted on the top of the main spline shaft. The reaming cone is detachably installed and detachably mounted with the main spline shaft by fasteners.

[0008] As a preferred embodiment of the present invention, the hole expansion assembly further includes an annular groove formed on the outer ring surface of the movable block, and several support blocks fixedly disposed on the top of the platform. The support blocks are distributed at equal angles around the main spline shaft, and a shift fork is hinged on the support block. Pins are fixedly disposed on two opposite surfaces of the shift fork near the end of the main spline shaft, and the pins are slidably assembled inside the annular groove.

[0009] As a preferred embodiment of the present invention, the hole enlarging assembly further includes a lifting sheet metal bracket movable along the height direction of the table surface. The end of the shift fork away from the pin is hinged to the lifting sheet metal bracket with a transmission connecting rod. A clearance groove for the transmission connecting rod to make way is provided through the table surface. The lifting sheet metal bracket is located around the main spline shaft. The main spline shaft can rotate circumferentially along the axis of the lifting sheet metal bracket, and the main spline shaft is axially locked to the lifting sheet metal bracket.

[0010] As a preferred embodiment of the present invention, the lifting sheet metal bracket is provided with at least two mounting holes, and a linear bearing is fixedly installed inside each mounting hole. A guide rod is inserted into the linear bearing, the top of the guide rod is fixedly assembled with the bottom of the table, and the linear bearing is movable along the axial direction of the guide rod.

[0011] As a preferred embodiment of the present invention, a limiting ring is fixedly provided at the bottom of the expanding cone, and the outer diameter of the limiting ring is the same as the maximum outer diameter of the expanding cone.

[0012] As a preferred embodiment of the present invention, a mounting base is fixedly provided at the bottom of the tabletop, and a drive cylinder is fixedly provided on the side of the mounting base. The piston rod of the drive cylinder faces downward, and the end of the piston rod of the drive cylinder is fixedly assembled with the bottom of the lifting sheet metal bracket through a connecting angle bracket.

[0013] As a preferred embodiment of the present invention, the drive assembly includes a drive motor fixedly mounted on the bottom of the table, a first pulley fixedly mounted on the output shaft of the drive motor, a second pulley sleeved around the main spline shaft, and at least one transmission wedge belt sleeved around the second pulley and the first pulley. The second pulley is rotatably mounted on the bottom of the table via a plane bearing, and the second pulley is circumferentially locked to the main spline shaft. The main spline shaft is axially movable along the second pulley.

[0014] Compared with the prior art, the beneficial effects of the present invention are: 1. In this invention, by integrating the inner wall grinding and leveling and the end hole enlargement processes into the same device, continuous processing of pipes can be completed in a single clamping and positioning, eliminating the need for secondary transfer and repeated clamping. This not only compresses the work process and improves the overall processing speed of pipes, adapting to the needs of large-scale mass production, but also avoids the cumulative tolerances caused by multiple clamping, ensuring the coaxiality of the grinding area and the hole enlargement area, reducing processing defects such as hole enlargement eccentricity and uneven pipe wall thickness, effectively improving the product yield. At the same time, a single device also reduces the workshop production area occupied, lowers equipment procurement and operation and maintenance management costs, and reduces enterprise production investment.

[0015] 2. In this invention, the coordinated action of the shift fork, transmission link and lifting sheet metal bracket can realize the synchronous coordinated action of the grinding component descending and retracting and the hole expansion component ascending and feeding. There is no need to configure additional power to drive the two processing components separately, which optimizes the overall structure of the device, simplifies the control logic and further reduces the production and maintenance costs of the device.

[0016] 3. In this invention, both the grinding block and the reaming cone adopt a detachable assembly structure, which can quickly replace the corresponding size processing parts according to the inner diameter specifications of the underfloor heating pipe, adapting to the processing of various specifications of underfloor heating pipes, and improving the adaptability and practicality of the device.

[0017] 4. In this invention, the output shaft of the drive motor drives the first pulley to rotate synchronously. The first pulley transmits power to the second pulley through a transmission wedge belt, causing the second pulley to rotate synchronously. This, in turn, drives the main spline shaft, which is circumferentially locked to it, to rotate. This enables the main spline shaft to drive the reaming cone to rotate and complete the reaming process. Furthermore, due to the circumferential locking between the main spline shaft and the inner and outer double spline bushings, the main spline shaft also drives the inner and outer double spline bushings to rotate, thereby driving the grinding assembly to rotate as a whole for grinding. One set of power components can simultaneously drive the grinding assembly and the reaming assembly to rotate, simplifying the overall structure of the device and reducing the equipment manufacturing cost. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of the present invention; Figure 2 This is a schematic diagram of the structure of the grinding assembly and the hole-reaming assembly in this invention; Figure 3 This is a schematic diagram of the grinding assembly in this invention; Figure 4 This is a schematic diagram of the structure of the inner and outer double spline bushing in this invention; Figure 5 This is a schematic diagram of the grinding block in this invention; Figure 6 This is a schematic diagram of the hole-expanding assembly in this invention; Figure 7This is a schematic diagram of the lifting sheet metal bracket in this invention; Figure 8 This is an exploded view of the main spline shaft and the reaming cone in this invention.

[0019] In the diagram: 100, table surface; 101, clearance groove; 200, grinding assembly; 201, grinding block; 202, connecting seat; 203, connecting plate; 204, sliding seat; 205, guide groove; 206, movable connecting rod; 207, leaf spring; 208, waist groove; 209, locking bolt; 2010, movable block; 2011, inner and outer double spline bushing; 300, reaming assembly; 301, main spline shaft; 302, reaming cone; 303. Annular groove; 304. Support block; 305. Shift fork; 306. Pin; 307. Lifting sheet metal bracket; 308. Transmission connecting rod; 309. Mounting seat; 3010. Drive cylinder; 3012. Mounting hole; 3013. Linear bearing; 3014. Guide rod; 3015. Limiting retaining ring; 400. Drive assembly; 401. Drive motor; 402. First pulley; 403. Second pulley; 404. Transmission wedge belt. Detailed Implementation

[0020] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0021] Please see Figures 1 to 8 The technical solution provided by the present invention specifically includes the following embodiments: A grinding device for processing graphene superconducting underfloor heating pipes includes a table 100, a grinding assembly 200, a reaming assembly 300, and a drive assembly 400. The grinding assembly 200 is rotatably mounted on top of the table 100 and is used for grinding graphene superconducting underfloor heating pipes. The grinding assembly 200 can be raised and lowered relative to the table 100, making it suitable for removal from the interior of the ground graphene superconducting underfloor heating pipe. The reaming assembly 300 is rotatably mounted on top of the table 100 and is used for reaming after grinding the graphene superconducting underfloor heating pipe. The hole-expanding component 300 can be raised and lowered relative to the table 100, and the direction of raising and lowering is opposite to that of the grinding component 200. In the initial state, the hole-expanding component 300 is located at the bottom of the grinding component 200. When the grinding component 200 is withdrawn from the inside of the ground graphene superconducting heat floor heating pipe, the hole-expanding component 300 moves upward, thereby expanding the hole at the end of the ground graphene superconducting heat floor heating pipe. The driving component 400 is fixedly installed at the bottom of the table 100 and is used to drive the grinding component 200 and the hole-expanding component 300 to rotate.

[0022] For further details, please refer to [link / reference]. Figure 2 , Figure 3 , Figure 4 , Figure 5 As shown: The grinding assembly 200 includes several annularly distributed grinding blocks 201. Each grinding block 201 has a chamfered top and a connecting seat 202 fixedly mounted on its bottom. The grinding blocks 201 and the connecting seats 202 are detachably assembled. Connecting plates 203 are fixedly mounted on both ends of the side of the connecting seat 202 away from the grinding blocks 201. Sliding seats 204 are concentrically mounted on the bottom of the grinding blocks 201. A guide groove 205, perpendicular to the angle of the grinding blocks 201, is formed through the top of the sliding seat 204. At least two movable connecting rods 206 are hinged between the guide groove 205 and the connecting plate 203. Several leaf springs 207 are fixedly mounted around the sliding seat 204. The connecting seat 202 is located away from the grinding blocks 201. One end of 1 abuts against the side of the leaf spring 207. The leaf spring 207 has a through groove 208 on the side near the connecting seat 202. A locking bolt 209 is inserted into the groove 208. The locking bolt 209 is threaded onto the end of the connecting seat 202. The leaf spring 207 and the connecting seat 202 can slide relative to each other. A movable block 2010 is fixedly provided at the bottom of the sliding seat 204. The movable block 2010 has an inner and outer double spline bushing 2011 inside. The inner and outer double spline bushing 2011 is rotatably mounted on the platform 100 through the bearing and passes through the top and bottom of the platform 100. The movable block 2010 can move along the axial direction of the inner and outer double spline bushing 2011 and is circumferentially locked with the inner and outer double spline bushing 2011.

[0023] Specifically, one end of the graphene superconducting heating pipe to be ground is inserted around several grinding blocks 201. During the insertion process, the end of the graphene superconducting heating pipe first acts against the chamfered top of the grinding blocks 201, thereby creating lateral compression on the grinding blocks 201, causing them to converge slightly towards the center. During this process, the grinding blocks 201, through the connecting seat 202, drive the pin 306 to deflect at a certain angle along the guide groove 205, while the leaf spring 207 elastically bends until the graphene superconducting heating pipe is completely fitted around the grinding blocks 201. Then, a clamp is used to secure the graphene pipe. The graphene superconducting heating pipe is fixed in place so that it will not move during processing. The spring 207 acts on the grinding block 201, which makes the grinding block 201 fit tightly against the inner wall of the graphene superconducting heating pipe, improving the grinding effect. Next, by rotating the inner and outer double spline bushing 2011, the movable block 2010, which is circumferentially locked to it, is rotated together, thereby driving the sliding seat 204 to rotate synchronously. The rotation of the sliding seat 204, connected by the movable connecting rod 206, the connecting plate 203 and the connecting seat 202, further drives the grinding block 201 to rotate, and performs grinding processing on the lower inner wall of the graphene superconducting heating pipe.

[0024] For further details, please refer to [link / reference]. Figure 3 , Figure 5 , Figure 6 , Figure 7 , Figure 8 As shown: The reaming assembly 300 includes a main spline shaft 301 disposed inside the inner and outer double spline bushings 2011. The main spline shaft 301 passes through the top and bottom of the inner and outer double spline bushings 2011. The main spline shaft 301 is axially movable along the inner and outer double spline bushings 2011 and is circumferentially locked to the inner and outer double spline bushings 2011. A reaming cone 302 is fixedly mounted on the top of the main spline shaft 301. The reaming cone 302 and the main spline shaft 301 are detachably installed by fasteners. The reaming assembly 300 also includes an annular groove 303 formed on the outer annular surface of the movable block 2010, and several support blocks 304 fixedly disposed on the top of the platform 100. The support blocks 304 are evenly distributed around the main spline shaft 301. A shift fork 305 is hinged to the support block 304. Two opposing surfaces of the shift fork 305 near the end of the main spline shaft 301 are fixedly provided with... The pin 306 is slidably fitted inside the annular groove 303. The enlarged hole assembly 300 also includes a lifting sheet metal bracket 307 that is movable along the height direction of the platform 100. The end of the shift fork 305 away from the pin 306 is hinged to the lifting sheet metal bracket 307 with a transmission connecting rod 308. A clearance groove 101 is provided through the platform 100 to allow the transmission connecting rod 308 to pass. The lifting sheet metal bracket 307 is located around the main spline shaft 301. The main spline shaft 301 is rotatable along the axial direction of the lifting sheet metal bracket 307, and the main spline shaft 301 and the lifting sheet metal bracket 307 are axially locked. A mounting base 309 is fixedly provided at the bottom of the platform 100. A drive cylinder 3010 is fixedly provided on the side of the mounting base 309. The piston rod of the drive cylinder 3010 faces downward, and the end of the piston rod of the drive cylinder 3010 is fixedly assembled to the bottom of the lifting sheet metal bracket 307 through a connecting angle bracket.

[0025] Specifically, after the grinding process is completed, the piston rod of the drive cylinder 3010 pushes the lifting sheet metal bracket 307 upward. During the upward movement of the lifting sheet metal bracket 307, the hinged transmission link 308 pushes the shift fork 305 to deflect around the hinge point on the support block 304, causing the pin 306 at the other end of the shift fork 305 to slide inside the annular groove 303, driving the movable block 2010 to move downward along the axial direction of the inner and outer double spline bushing 2011. During the downward movement of the movable block 2010, the sliding seat 204, the movable link 206, the connecting plate 203, the connecting seat 202, and the grinding block 201 move together. Several grinding blocks 201 are withdrawn from the bottom of the graphene superconducting thermal floor heating pipe, ending the grinding process. At the same time, during the upward movement of the lifting sheet metal bracket 307, the main spline shaft 301 also moves together, pushing the fixed top of the main spline shaft 301 upward. The expanding cone 302 moves upward, at which point it extends to the inner wall of the end of the graphene superconducting heating pipe. The expanding cone 302 is rotated by rotating the main spline shaft 301 to expand the end of the heating pipe. As the expanding cone 302 moves upward, the grinding block 201 moves downward. The bottom of the grinding block 201 contacts the top conical surface of the expanding cone 302. The conical surface of the expanding cone 302 exerts lateral pressure on the grinding block 201, causing the grinding block 201 to push the connecting seat 202 and the connecting plate 203 away from the expanding cone 302. At the same time, the movable connecting rod 206 deflects at a certain angle away from the expanding cone 302, and the leaf spring 207 is compressed and elastically bent. Finally, under the action of the rebound force of the leaf spring 207, the grinding block 201 slides along the surface of the expanding cone 302 to the designed position.

[0026] For further details, please refer to [link / reference]. Figure 2 , Figure 6 , Figure 7 As shown: The lifting sheet metal bracket 307 has at least two mounting holes 3012. A linear bearing 3013 is fixedly installed inside each mounting hole 3012. A guide rod 3014 is inserted into the linear bearing 3013. The top of the guide rod 3014 is fixedly assembled with the bottom of the table 100. The linear bearing 3013 can move axially along the guide rod 3014.

[0027] Specifically, when the lifting sheet metal bracket 307 moves along the height direction of the table 100, the linear bearing 3013 slides axially along the guide rod 3014 together with the lifting sheet metal bracket 307. The guide rod 3014 guides and limits the movement of the lifting sheet metal bracket 307, ensuring the stability of the lifting sheet metal bracket 307 during the movement process, avoiding the deflection and swaying of the lifting sheet metal bracket 307 from affecting the movement accuracy of the grinding assembly 200 and the hole reaming assembly 300, and ensuring the processing quality.

[0028] For further details, please refer to [link / reference]. Figure 2 , Figure 7 As shown: A limiting ring 3015 is fixedly installed at the bottom of the reaming cone 302, and the outer diameter of the limiting ring 3015 is the same as the maximum outer diameter of the reaming cone 302.

[0029] Specifically, the limiting retaining ring 3015 can fill the reserved position below the reaming cone 302, allowing the grinding block 201 to slide along the surface of the reaming cone 302 to the outer ring surface of the limiting retaining ring 3015 during downward movement. After reaming is completed, the piston rod of the drive cylinder 3010 drives the lifting sheet metal bracket 307 to move downward and reset. During the downward movement of the lifting sheet metal bracket 307, the transmission connecting rod 308 pulls the shift fork 305 to deflect and reset, causing the movable block 2010 to move upward along the axial direction of the inner and outer double spline bushing 2011, thus... The sliding seat 204 and grinding block 201 are reset upwards as a whole. During this process, the grinding block 201 slides from the outer ring of the limiting ring 3015 to the surface of the reaming cone 302. The outer ring of the limiting ring 3015 provides a sliding guide for the grinding block 201 during the reset process, ensuring that the grinding block 201 can be smoothly reset to the initial position without jamming or misalignment affecting the next processing. At the same time, the main spline shaft 301 also moves downwards synchronously, driving the reaming cone 302 to reset downwards and return to the initial state, ready for the next processing.

[0030] For further details, please refer to [link / reference]. Figure 2 As shown: The drive assembly 400 includes a drive motor 401 fixedly mounted on the bottom of the table 100. A first pulley 402 is fixedly mounted on the output shaft of the drive motor 401. A second pulley 403 is sleeved around the main spline shaft 301. At least one transmission wedge belt 404 is sleeved around the second pulley 403 and the first pulley 402. The second pulley 403 is rotatably mounted on the bottom of the table 100 through a plane bearing. The second pulley 403 is circumferentially locked to the main spline shaft 301. The main spline shaft 301 is axially movable along the second pulley 403.

[0031] Specifically, the output shaft of the drive motor 401 drives the first pulley 402 to rotate synchronously. The first pulley 402 transmits power to the second pulley 403 through the transmission wedge belt 404, causing the second pulley 403 to rotate synchronously. This, in turn, drives the main spline shaft 301, which is circumferentially locked to it, to rotate. This allows the main spline shaft 301 to drive the reaming cone 302 to rotate and complete the reaming process. Furthermore, due to the circumferential locking between the main spline shaft 301 and the inner and outer double spline bushings 2011, the main spline shaft 301 also drives the inner and outer double spline bushings 2011 to rotate, thereby driving the grinding assembly 200 to rotate as a whole for grinding. One power assembly can simultaneously drive the grinding assembly 200 and the reaming assembly 300 to rotate, simplifying the overall structure of the device and reducing the equipment manufacturing cost.

[0032] The working principle of the grinding device used in the processing of graphene superconducting heating pipes in this solution: In the preparation stage, appropriate lubricating grease is first applied between the various moving parts of the device to reduce mechanical wear during operation. After preparation, one end of the graphene superconducting heating pipe to be ground is inserted around several grinding blocks 201. During insertion, the end of the graphene superconducting heating pipe first acts against the chamfered top of the grinding blocks 201, thereby creating lateral compression on the grinding blocks 201, causing them to converge slightly towards the center. During this process, the grinding blocks 201, through the connecting seat 202, drive the pin 306 to deflect at a certain angle along the guide groove 205, while the leaf spring 207 elastically bends until the graphene superconducting heating pipe is completely fitted around the grinding blocks 201. Then, the graphene superconducting heating pipe is fixed with a clamp to prevent it from moving during processing. Next... The first pulley 402 is driven to rotate by the drive motor 401. Under the transmission action of the belt drive wedge belt 404, the second pulley 403 is driven to rotate synchronously. Since the second pulley 403 is circumferentially locked to the main spline shaft 301, the main spline shaft 301 rotates synchronously with the second pulley 403. The main spline shaft 301 is circumferentially locked to the inner and outer double spline bushings 2011, so that the inner and outer double spline bushings 2011 also rotate synchronously with the main spline shaft 301. Since the inner and outer double spline bushings 2011 are circumferentially locked to the movable block 2010, the rotation of the inner and outer double spline bushings 2011 will drive the sliding seat 204 to rotate together through the movable block 2010, and drive the grinding block 201 to rotate together through the movable connecting rod 206, connecting plate 203, and connecting seat 202. During the rotation of the grinding block 201, the inner wall of the end of the graphene superconducting thermal floor heating pipe is ground to remove burrs. After the inner wall of the graphene superconducting thermal floor heating pipe is ground, the piston rod of the drive cylinder 3010 pushes the lifting sheet metal bracket 307 upward. During the upward movement of the lifting sheet metal bracket 307, the hinged transmission link 308 pushes the shift fork 305 to deflect around the hinge point on the support block 304, causing the pin 306 at the other end of the shift fork 305 to slide inside the annular groove 303, driving the movable block 2010 to move downward along the axial direction of the inner and outer double spline bushing 2011. During the downward movement of the movable block 2010, the sliding seat 204, the movable link 206, the connecting plate 203, the connecting seat 202, and the grinding block 201 move together. Several grinding blocks 201 are withdrawn from the bottom of the graphene superconducting thermal floor heating pipe, ending the grinding. At the same time, during the upward movement of the lifting sheet metal bracket 307, the main spline shaft 301 also moves together. During the upward movement of the main spline shaft 301, the expanding cone head 302 fixed on its top is pushed. As the hole expands upward, the expanding cone 302 extends to the inner wall of the end of the graphene superconducting heating pipe. Combined with rotation, this completes the hole expansion process at the end of the heating pipe. During the upward movement of the expanding cone 302, the grinding block 201 moves downward, and the bottom of the grinding block 201 contacts the top conical surface of the expanding cone 302. The conical surface of the expanding cone 302 exerts lateral pressure on the grinding block 201, causing the grinding block 201 to push the connecting seat 202 and the connecting plate 203 away from the expanding cone 302. Simultaneously, the movable connecting rod 206 deflects at a certain angle away from the expanding cone 302, and the leaf spring 207 is compressed, resulting in elastic bending. Finally, under the rebound force of the leaf spring 207, the grinding block 201 slides along the surface of the expanding cone 302 until it abuts against the outer ring surface of the limiting ring 3015. This ensures that the expanding cone 302 does not interfere with the grinding block 201 when it moves upward. After the reaming is completed, the clamp is released, and the processed graphene superconducting heating pipe is removed from the device. Then, the piston rod of the drive cylinder 3010 is controlled to move the lifting sheet metal bracket 307 downward to reset. During the downward movement of the lifting sheet metal bracket 307, the fork 305 is deflected and reset through the transmission connecting rod 308, which drives the movable block 2010 to move upward along the inner and outer double spline bushing 2011. This causes the sliding seat 204 and grinding block 201 to reset upward as a whole. At the same time, the main spline shaft 301 also moves downward synchronously, driving the reaming cone 302 to reset downward and return to the initial state, ready for the next processing. In the entire processing process, grinding and reaming are completed sequentially and continuously without changing the workstation and re-clamping, which effectively simplifies the processing process, reduces processing errors, and improves the overall precision of the end processing of the graphene superconducting heating pipe.

[0033] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the invention.

Claims

1. A grinding device for processing graphene superconducting underfloor heating pipes, comprising: The table (100), grinding assembly (200), hole enlarging assembly (300) and drive assembly (400) are characterized in that: the grinding assembly (200) is rotatably disposed on the top of the table (100) for grinding graphene superconducting heat floor heating pipes, and the grinding assembly (200) can be raised and lowered relative to the table (100) and is suitable for being removed from the inside of the ground graphene superconducting heat floor heating pipe; The hole-expanding component (300) is rotatably mounted on the top of the table (100) and is used for expanding the hole after grinding in the processing of graphene superconducting thermal heating pipe. The hole-expanding component (300) can move up and down relative to the table (100), and the direction of raising and lowering is opposite to that of the grinding component (200). In the initial state, the hole-expanding component (300) is located at the bottom of the grinding component (200). When the grinding component (200) is withdrawn from the inside of the ground graphene superconducting thermal heating pipe, the hole-expanding component (300) moves upward, thereby expanding the hole at the end of the ground graphene superconducting thermal heating pipe. The drive assembly (400) is fixedly mounted on the bottom of the table (100) and is used to drive the grinding assembly (200) and the reaming assembly (300) to rotate.

2. The grinding device for processing graphene superconducting thermal floor heating pipes according to claim 1, characterized in that: The grinding assembly (200) includes several annularly distributed grinding blocks (201). Each grinding block (201) has a chamfered top and a connecting seat (202) fixedly mounted at its bottom. The grinding blocks (201) and the connecting seats (202) are detachably assembled. Connecting plates (203) are fixedly mounted at both ends of the side of the connecting seat (202) away from the grinding blocks (201). Sliding seats (204) are concentrically mounted at the bottom of each grinding block (201). A guide groove (205) is formed at the top of each sliding seat (204) at an angle equal to that of the grinding blocks (201). At least two movable connecting rods (206) are hinged between the guide groove (205) and the connecting plate (203). Several leaf springs (207) are fixedly arranged around the sliding seat (204). The end of the connecting seat (202) away from the grinding block (201) abuts against the side of the leaf spring (207). A waist groove (208) is opened through the leaf spring (207) near the connecting seat (202). A locking bolt (209) is inserted into the waist groove (208). The locking bolt (209) is threaded onto the end of the connecting seat (202). The leaf spring (207) and the connecting seat (202) can slide relative to each other.

3. The grinding device for processing graphene superconducting thermal floor heating pipes according to claim 2, characterized in that: The sliding seat (204) has a fixed movable block (2010) at its bottom. The movable block (2010) has an inner and outer double spline bushing (2011) inside. The inner and outer double spline bushing (2011) is rotatably mounted on the table (100) through a bearing and passes through the top and bottom of the table (100). The movable block (2010) can move axially along the inner and outer double spline bushing (2011) and is circumferentially locked with the inner and outer double spline bushing (2011).

4. The grinding device for processing graphene superconducting heating pipes according to claim 3, characterized in that: The reaming assembly (300) includes a main spline shaft (301) disposed inside the inner and outer double spline bushings (2011). The main spline shaft (301) passes through the top and bottom of the inner and outer double spline bushings (2011). The main spline shaft (301) is axially movable along the inner and outer double spline bushings (2011) and is circumferentially locked with the inner and outer double spline bushings (2011). A reaming cone (302) is fixedly mounted on the top of the main spline shaft (301). The reaming cone (302) and the main spline shaft (301) are detachably installed by fasteners.

5. The grinding device for processing graphene superconducting thermal floor heating pipes according to claim 4, characterized in that: The enlarged hole assembly (300) also includes an annular groove (303) formed on the outer ring surface of the movable block (2010) and several support blocks (304) fixedly set on the top of the platform (100). The support blocks (304) are evenly distributed around the main spline shaft (301). A shift fork (305) is hinged on the support block (304). A pin (306) is fixedly set on two opposite surfaces of the shift fork (305) near the end of the main spline shaft (301). The pin (306) is slidably assembled inside the annular groove (303).

6. The grinding device for processing graphene superconducting thermal floor heating pipes according to claim 5, characterized in that: The hole-expanding assembly (300) also includes a lifting sheet metal bracket (307) movable along the height direction of the table (100). A transmission link (308) is hinged between the end of the fork (305) away from the pin (306) and the lifting sheet metal bracket (307). A clearance groove (101) for the transmission link (308) to make way is provided through the table (100). The lifting sheet metal bracket (307) is located around the main spline shaft (301). The main spline shaft (301) can rotate circumferentially along the axis of the lifting sheet metal bracket (307), and the main spline shaft (301) is axially locked to the lifting sheet metal bracket (307).

7. The grinding device for processing graphene superconducting heating pipes according to claim 6, characterized in that: The lifting sheet metal bracket (307) has at least two mounting holes (3012). A linear bearing (3013) is fixedly installed inside each mounting hole (3012). A guide rod (3014) is inserted inside the linear bearing (3013). The top of the guide rod (3014) is fixedly assembled with the bottom of the table (100). The linear bearing (3013) can move axially along the guide rod (3014).

8. The grinding device for processing graphene superconducting thermal floor heating pipes according to claim 7, characterized in that: The bottom of the expanding cone (302) is fixedly provided with a limiting ring (3015), and the outer diameter of the limiting ring (3015) is the same as the maximum outer diameter of the expanding cone (302).

9. The grinding device for processing graphene superconducting heating pipes according to claim 8, characterized in that: The bottom of the platform (100) is fixedly provided with a mounting base (309), and a driving cylinder (3010) is fixedly provided on the side of the mounting base (309). The piston rod of the driving cylinder (3010) faces downward, and the end of the piston rod of the driving cylinder (3010) is fixedly assembled with the bottom of the lifting sheet metal bracket (307) through a connecting angle bracket.

10. The grinding device for processing graphene superconducting heating pipes according to claim 9, characterized in that: The drive assembly (400) includes a drive motor (401) fixedly mounted on the bottom of the table (100). A first pulley (402) is fixedly mounted on the output shaft of the drive motor (401). A second pulley (403) is sleeved around the main spline shaft (301). At least one transmission wedge belt (404) is sleeved around the second pulley (403) and the first pulley (402). The second pulley (403) is rotatably mounted on the bottom of the table (100) through a plane bearing. The second pulley (403) is circumferentially locked to the main spline shaft (301). The main spline shaft (301) is axially movable along the second pulley (403).

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