Grinding and finishing device for outer surface of cylindrical PDCPD product

Abstract

The invention relates to the technical field of cylindrical workpiece grinding, in particular to a cylindrical PDCPD product outer surface grinding and finishing device which comprises a supporting table and further comprises a clamping mechanism, a grinding mechanism, a grinding mechanism, a finishing mechanism, a grinding mechanism, a grinding mechanism and a finishing mechanism, and the clamping mechanism is installed on the supporting table and used for clamping a PDCPD product and driving the PDCPD product to rotate; the grinding mechanism is mounted on the supporting table; the spraying mechanism is mounted on the grinding mechanism and moves along with the grinding mechanism; the grinding mechanism comprises a pulling assembly, a triggering assembly, a damping assembly, a grinding assembly and a movable part. One end of the pulling assembly is installed in the supporting table, and the other end of the pulling assembly is connected with the movable part. The movable part is elastically connected into the supporting table; the trigger assembly is installed in the movable part and carries the grinding assembly to be attached to the edge of the PDCPD product. The grinding wheel can only grind and finish the edge of the product, the grinding depth of the grinding wheel on the product is accurately controlled, and the situation that after the grinding wheel grinds a protruding body on the surface of the product, the part, which is not to be ground, of the product is ground is avoided.

Description

Technical Field

[0001] This invention relates to the field of cylindrical workpiece grinding technology, and specifically to a grinding and dressing device for the outer surface of cylindrical PDCPD products. Background Technology

[0002] PDCPD (polydicyclopentadiene) is a thermosetting engineering plastic manufactured through reaction injection molding (RIM). Depending on the requirements, PDCPD can be manufactured into cylindrical, rectangular, and irregularly shaped shells, solids, and hollow bodies. When processing cylindrical PDCPD products, their surfaces may be uneven, such as with local deformation or protrusions. In this case, a finishing device is needed to grind and finish the outer surface of the PDCPD product to make it into a cylindrical shape.

[0003] Chinese patent CN222114465U discloses a safe plastic rod processing device, including a housing. A wire lever passes through the inside of the housing via a bearing, and a lead screw sleeve is sleeved on the side wall of the wire lever. A movable block is fixedly sleeved on the side wall of the lead screw sleeve. A crossbar slides through one side of the movable block, and the two ends of the crossbar are fixedly connected to the two sides inside the housing, respectively. The above-mentioned prior art uses a support roller. By setting the support roller, the installation of plastic rods can be completed stably and with less effort, thus improving the practicality of the safe plastic rod processing device.

[0004] However, when the grinding wheel grinds PDCPD products, the grinding distance is usually achieved by driving the grinding wheel towards the PDCPD product using a cylinder or other drive device. But the protrusion of the protrusion is usually small, and it is not easy to control the grinding distance with high precision when using a cylinder or other drive device. This may cause the grinding wheel to grind the parts of the PDCPD product that do not need to be ground, resulting in damage to the appearance of the PDCPD product and making it impossible to grind it into a cylinder. Summary of the Invention

[0005] The purpose of this invention is to address the problems existing in the background art by proposing a grinding and dressing device for the outer surface of cylindrical PDCPD products.

[0006] The technical solution of the present invention: A grinding and dressing device for the outer surface of a cylindrical PDCPD product, comprising a support table, and further comprising: A clamping mechanism, which is mounted on a support platform, is used to clamp PDCPD products and drive them to rotate; The grinding mechanism is mounted on a support platform; The spraying mechanism is mounted on the grinding mechanism and moves closer to the PDCPD product as the grinding mechanism approaches. The grinding mechanism includes a pulling component, a triggering component, a damping component, a grinding component, and a moving part; one end of the pulling component is installed inside the support table, and the other end is connected to the moving part; the moving part is elastically connected inside the support table; the triggering component is installed inside the moving part and carries the grinding component to fit against the edge of the PDCPD product; the damping component is installed on the support table and is used to reduce the moving speed of the triggering component towards the PDCPD product; the grinding component is installed on the side of the moving part and is used to finish the PDCPD product; after the clamping mechanism moves the PDCPD product to a fixed position, the moving part moves towards the edge of the PDCPD product, and then the grinding component grinds the outer surface of the PDCPD product.

[0007] Preferably, the pulling assembly includes an elastic element two and a pull cord; The two ends of the elastic element 2 are connected to the support platform and the pull rope, respectively; the two ends of the pull rope are connected to the elastic element 2 and the movable part, respectively.

[0008] Preferably, the triggering component includes an elastic element three, an inclined part, a snap-fit ​​plate one, and a snap-fit ​​plate two; The two ends of the elastic element three are respectively connected to the inner wall of the movable part and the inclined part; the inclined part is movably sleeved in the movable part; the snap-fit ​​plate one is connected to the inclined part; the snap-fit ​​plate two is installed on the inner wall and inserted into the movable part and is located on the moving path of the snap-fit ​​plate one.

[0009] Preferably, the damping assembly includes a damping plate, an elastic element four, a damping part, an elastic element five, and an L-plate; The damping plate is installed on the inner wall of the support platform, the elastic element four is installed on the inner wall of the support platform, the damping part is connected to the elastic element four, and the two ends of the elastic element five are respectively connected to the movable part and the inner wall of the support platform; the two sides of the L plate are respectively connected to the movable part and the damping part; the damping part and the damping plate are slidably connected.

[0010] Preferably, the grinding assembly includes a lead screw, a mounting part, a motor, a grinding wheel, and a rod. The lead screw is movably connected to the outside of the movable part; the mounting part is threaded to the lead screw; the motor is mounted on the mounting part; the output shaft of the motor is connected to the grinding wheel; the grinding wheel rotates and grinds after moving to the edge of the PDCPD product with the movable part; the rod is mounted on the outside of the movable part, and the mounting part is movably connected to the rod.

[0011] Preferably, the clamping mechanism includes a motor, a lead screw, a support, a rod, a rotating unit, and a vibration unit; Motor 1 is installed on the outside of the support platform; its output shaft is connected to lead screw 1; the support part is threaded to lead screw 1; rod 1 is installed at the bottom of the inner cavity of the support platform, and its surface is movably connected to the support part; the rotating unit is elastically connected to the support part, and the vibration unit is installed on the rotating unit.

[0012] Preferably, the rotating unit includes a movable plate, a second motor, a second lead screw, a moving part, a clamping turntable, a cylinder, and a second rod; The movable plate is elastically connected to the support; motor 2 is installed outside the movable plate, and the output shaft of motor 2 is connected to lead screw 2, which is threaded into the movable part; the cylinder is installed on the top of the movable part, and the output shaft of the cylinder and the bottom of the inner cavity of the movable part are both equipped with clamping turntables; rod 2 is installed on the movable plate, and the movable part is movably connected to rod 2.

[0013] Preferably, the vibration unit includes a first concave-convex plate and a second concave-convex plate; One concave-convex plate is installed on the inner wall of the support platform, and the other concave-convex plate is installed below the movable plate; the first concave-convex plate is located on the moving path of the second concave-convex plate.

[0014] Preferably, the spraying mechanism includes a spray pipe, a spray head, a control cylinder, a spring, a blocking part, and an annular plate; The spray pipe is installed on the movable part and moves with the movable part; the two ends of the spray pipe are connected to the spray head and the control cylinder respectively; the two ends of the spring are connected to the inner wall of the control cylinder and the blocking part respectively; the annular plate is installed above the connection between the control cylinder and the spray pipe; the blocking part covers the annular plate, and the bottom of the blocking part passes through the control cylinder and is located on the upward path of the inclined part.

[0015] Compared with the prior art, the above-mentioned technical solution of the present invention has the following beneficial technical effects: The cylindrical PDCPD product is placed between the moving parts. Then, the cylinder is activated to drive the upper clamping turntable to descend, thereby clamping and fixing the cylindrical PDCPD product through the two clamping turntables. Then, the moving part drives the cylindrical PDCPD product to move towards the moving part. At this time, the elastic element moves towards the support part, thereby releasing the pull rope. At this point, the elastic element five releases its elasticity, causing the movable part to move towards the PDCPD product. The inclined part then contacts the PDCPD product from above on one side. The inclined part moves upward along the edge of the PDCPD product, thereby causing the locking plate one and locking plate two to engage, thus stopping the movable part from moving. This causes the spray head and grinding wheel to come into contact with the edge of the PDCPD product and stop moving. Then, the motor three is started to drive the grinding wheel to rotate and grind the outer circle of the PDCPD product. This achieves the goal of the movable part driving the grinding wheel to come into contact with the edge of the PDCPD product and stop moving. Furthermore, due to the limitation of the grinding wheel by the movable part, the grinding wheel can only grind and trim the edge of the PDCPD product, precisely controlling the grinding depth of the grinding wheel on the PDCPD product. This prevents the grinding wheel from grinding the outer circle of the PDCPD product and grinding areas that should not be ground, thus avoiding damage to the PDCPD product. After one side of the PDCPD product is finished, the clamping turntable rotates the PDCPD product, causing the other side of the PDCPD product to move towards the movable part. However, the distance the PDCPD product moves each time is the same. At this time, the movable part slowly moves towards the PDCPD product, and then the inclined part contacts the edge of the PDCPD product. This achieves the ability to precisely control the movement distance and grinding depth of the grinding wheel through the movable part and the inclined part without the need for precise control of the drive mechanism, so that PDCPD products of different sizes can be ground. When the inclined section moves upward within the movable part, it pushes the blockage upward, thereby separating the blockage from the annular plate. This allows external water to enter the control cylinder, then through the space between the blockage and the annular plate into the spray pipe, and finally sprayed onto the grinding wheel through the spray head. This cools the grinding wheel and prevents dust from being generated during the grinding process. Attached Figure Description

[0016] 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 elastic element two proposed in this invention; Figure 3 For the present invention Figure 2 Enlarged view of point A in the middle; Figure 4 This is a schematic diagram of the structure of the lead screw proposed in this invention; Figure 5 This is a schematic diagram of the structure of the control cylinder proposed in this invention; Figure 6 This is a schematic diagram of the structure of the spray pipe proposed in this invention; Figure 7 This is a schematic diagram of the structure of the elastic element three proposed in this invention; Figure 8 This is a schematic diagram of the structure of the movable part proposed in this invention; Figure 9 This is a schematic diagram of the structure of the blocking part proposed in this invention; Figure 10 This is a schematic diagram of the cylindrical PDCPD product of the present invention; Reference numerals in the attached diagram: 1. Support platform; 2. Motor 1; 3. Lead screw 1; 4. Support part; 5. Rod 1; 6. Elastic element 1; 7. Moving plate; 8. Motor 2; 9. Lead screw 2; 10. Moving part; 11. Clamping turntable; 12. Cylinder; 13. Concave-convex plate 1; 14. Concave-convex plate 2; 15. Rod 2; 16. Elastic element 2; 17. Pull rope; 18. Moving part; 19. Elastic element 3; 20. Sloping part; 21. Clip plate 1; 22. Clip plate 2; 23. Damping plate; 24. Elastic element 4; 25. Damping part; 26. Elastic element 5; 27. L-plate; 28. Lead screw 3; 29. ​​Mounting part; 30. Motor 3; 31. Grinding wheel; 32. Spray pipe; 33. Spray head; 34. Control cylinder; 35. Spring 1; 36. Blocking part; 37. Annular plate; 38. Rod 3. Detailed Implementation

[0017] Example 1, as Figure 1-10 As shown, the present invention proposes a grinding and finishing device for the outer surface of a cylindrical PDCPD product, which includes a clamping mechanism, a grinding mechanism, a spraying mechanism and a support table 1; The clamping mechanism is mounted on the support platform 1 and is used to clamp PDCPD products and drive them to rotate; The grinding mechanism is mounted on the support table 1; The spraying mechanism is mounted on the grinding mechanism and moves closer to the PDCPD product as the grinding mechanism approaches. The grinding mechanism includes a pulling component, a triggering component, a damping component, a grinding component, and a movable part 18. One end of the pulling component is installed inside the support table 1, and the other end is connected to the movable part 18. The movable part 18 is elastically connected inside the support table 1. The triggering component is installed inside the movable part 18 and carries the grinding component to the edge of the PDCPD product. The damping component is installed on the support table 1 and is used to reduce the moving speed of the triggering component towards the PDCPD product. The grinding component is installed on the side of the movable part 18 and is used to trim the PDCPD product. After the clamping mechanism moves the PDCPD product to a fixed position, the movable part 18 moves towards the edge of the PDCPD product, and then the grinding component trims the cylindrical outer surface of the PDCPD product.

[0018] The pulling assembly includes an elastic element 16 and a pull cord 17; The two ends of the elastic element 16 are connected to the support platform 1 and the pull rope 17 respectively; the two ends of the pull rope 17 are connected to the elastic element 16 and the movable part 18 respectively; when the screw 3 rotates and drives the support part 4 to move toward the elastic element 16, the PDCPD product is rotated by the clamping turntable 11, and the support part 4 squeezes the elastic element 16, thereby pulling the pull rope 17 through the elastic element 16, and the pull rope 17 pulls the movable part 18 to reset.

[0019] The triggering components include elastic element 3 19, inclined part 20, snap-fit ​​plate 1 21 and snap-fit ​​plate 2 22; The two ends of the elastic element 19 are connected to the inner wall of the movable part 18 and the inclined part 20, respectively; the inclined part 20 is movably fitted inside the movable part 18; the snap-fit ​​plate 21 is connected to the inclined part 20; the snap-fit ​​plate 22 is installed on the inner wall and inserted into the movable part 18 and is located on the moving path of the snap-fit ​​plate 21; the inclined surface of the inclined part 20 faces the PDCPD product, and the snap-fit ​​plate 21 rises with the edge of the PDCPD product, so that the snap-fit ​​plate 21 and the snap-fit ​​plate 22 snap together, thereby preventing the movable part 18 from moving through the snap-fit ​​of the snap-fit ​​plate 21 and the snap-fit ​​plate 22.

[0020] The damping assembly includes a damping plate 23, an elastic element 24, a damping part 25, an elastic element 26, and an L-plate 27. Damping plate 23 is installed on the inner wall of support platform 1, elastic element 4 24 is installed on the inner wall of support platform 1, damping part 25 is connected to elastic element 4 24, and the two ends of elastic element 5 26 are respectively connected to movable part 18 and inner wall of support platform 1; both sides of L plate 27 are respectively connected to movable part 18 and push damping part 25 to move; damping part 25 and damping plate 23 are slidably connected; when the pull rope 17 is loose, the elasticity of elastic element 5 26 drives movable part 18 to move towards PDCPD product, L plate 27 pushes damping part 25 to move towards movable part 18, at this time, through damping part 25 The sliding connection between the damping plate 23 and the damping part 25 allows the damping plate 23 to dampen the damping part 25, thereby causing the movable part 18 to move slowly when it moves toward the PDCPD product. This prevents the movable part 18 from moving too fast and stopping before the PDCPD product is in place. When the elastic element 16 is pushed by the support part 4, it pulls the rope 17 to move the movable part 18 away from the PDCPD product. At this time, the L plate 27 separates from the damping part 25, so that the movable part 18 is not affected by damping when it moves away from the PDCPD product, thus achieving unidirectional damping.

[0021] The grinding assembly includes a lead screw 3 28, a mounting part 29, a motor 30, a grinding wheel 31, and a rod 38; The lead screw 3 28 is movably connected to the outside of the movable part 18; the mounting part 29 is threadedly fitted with the lead screw 3 28; the motor 3 30 is mounted on the mounting part 29; the output shaft of the motor 3 30 is connected to the grinding wheel 31; the grinding wheel 31 rotates and grinds after moving to the edge of the PDCPD product with the movable part 18; the rod 3 38 is mounted on the outside of the movable part 18, and the mounting part 29 movably connects to the rod 3 38; When the factory processes PDCPD products with raised rings for aesthetic or other functions, the raised parts that need to be trimmed on the PDCPD products are at different distances from the highest point of the PDCPD product edge due to the setting distance of the raised rings. At this time, the operator rotates the lead screw 28 to drive the mounting part 29 to move along the lead screw 28 and the rod 38, thereby driving the grinding wheel 31 to move to the designated position and adjusting the distance between the inclined part 20 and the grinding wheel 31, so that the grinding wheel 31 can grind and trim different types of cylindrical PDCPD products. Since the protrusions on the surface of cylindrical PDCPD products are not continuous, when facing some thicker and longer protrusions, after the moving part 10 moves the PDCPD product to the designated position, the motor 2 8 is started to drive the lead screw 2 9 to rotate, thereby driving the moving part 10 to move along the lead screw 2 9 and the rod 2 15, so that the grinding wheel 31 is aligned with the place without protrusions, thus avoiding the grinding wheel 31 being blocked by longer protrusions. The number of grinding wheels 31 can be set as needed.

[0022] Example 2, as Figure 1 , 2 As shown in Figure 4, the present invention proposes a grinding and finishing device for the outer surface of a cylindrical PDCPD product. Compared with Embodiment 1, the clamping mechanism of this embodiment includes a motor 2, a lead screw 3, a support part 4, a rod 5, a rotating unit, and a vibration unit. Motor 2 is installed on the outside of support platform 1; its output shaft is connected to lead screw 3; support part 4 is threaded to lead screw 3; rod 5 is installed at the bottom of the inner cavity of support platform 1, and its surface is movably connected to support part 4; rotating unit is elastically connected to support part 4, and vibration unit is installed on rotating unit.

[0023] The rotating unit includes a movable plate 7, a second motor 8, a second lead screw 9, a moving part 10, a clamping turntable 11, a cylinder 12, and a second rod 15; the movable plate 7 is elastically connected to the support part 4; the second motor 8 is installed outside the movable plate 7, and the output shaft of the second motor 8 is connected to the second lead screw 9, which is threaded into the moving part 10; the cylinder 12 is installed on the top of the moving part 10, and the clamping turntable 11 is installed on both the output shaft of the cylinder 12 and the bottom of the inner cavity of the moving part 10; the second rod 15 is installed on the movable plate 7, and the moving part 10 is movably connected to the second rod 15; The cylindrical PDCPD product is placed between two clamping turntables 11. Then, the cylinder 12 is started to move the clamping turntable 11 on its output shaft toward the PDCPD product, clamping and fixing the PDCPD product. During the finishing process, the motor 2 is started to drive the lead screw 3 to rotate, which in turn drives the support part 4 to move toward the movable part 18. When the grinding wheel 31 grinds the outer circle of the PDCPD product, the motor 8 is started to drive the lead screw 9 to rotate, which in turn drives the movable part 10 to move along the axis of the lead screw 9 and the rod 15, moving the PDCPD product. This allows the grinding wheel 31 to perform comprehensive grinding and finishing on the edges of the PDCPD product.

[0024] The vibration unit includes a first concave-convex plate 13 and a second concave-convex plate 14; The first concave-convex plate 13 is installed on the inner wall of the support platform 1, and the second concave-convex plate 14 is installed below the movable plate 7; the first concave-convex plate 13 is located on the moving path of the second concave-convex plate 14.

[0025] Example 3, as Figure 5-9 As shown, the present invention proposes a grinding and finishing device for the outer surface of a cylindrical PDCPD product. Compared with Embodiment 2, the spraying mechanism of this embodiment includes a spray pipe 32, a spray head 33, a control cylinder 34, a spring 35, a blocking part 36, and an annular plate 37. The spray pipe 32 is mounted on the movable part 18 and moves with the movable part 18; the two ends of the spray pipe 32 are respectively connected to the spray head 33 and the control cylinder 34; the two ends of the spring 35 are respectively connected to the inner wall of the control cylinder 34 and the blocking part 36; the annular plate 37 is mounted above the connection between the control cylinder 34 and the spray pipe 32; the blocking part 36 covers the annular plate 37, and the bottom of the blocking part 36 penetrates the control cylinder 34 and is located on the upward path of the inclined part 20; the elastic element 1 6, elastic element 2 16, elastic element 3 19 and elastic element 5 26 are all composed of spring 2 and telescopic rod, and spring 2 is sleeved on the outer periphery of the telescopic rod; the elastic element 4 24 is composed of rod 4 and spring 3, spring 3 is sleeved on the outer periphery of rod 4, and damping part 25 is sleeved on the surface of elastic element 4 24, and the two ends of spring 3 are respectively connected to rod 4 and damping part 25.

[0026] A telescopic tube is connected to the top of the control cylinder 34, and the two ends of the telescopic tube are connected to the support platform 1 and the control cylinder 34 respectively.

[0027] In summary, in this invention, the water source is connected to the telescopic pipe above the control cylinder 34, and the water then enters the control cylinder 34 along the telescopic pipe. The cylindrical PDCPD product is placed on the clamping turntable 11. Then, the cylinder 12 is activated to drive the clamping turntable 11 to clamp the cylindrical PDCPD product. Then, the motor 2 drives the lead screw 3 to rotate, thereby driving the support part 4 to move a fixed distance along the lead screw 3 and the rod 5 towards the movable part 18 and then stop moving. At this time, the support part 4 separates from the elastic element 16, and the elastic element 16 extends to release the pull rope 17. Then, the elastic element 26 loses its limit and drives the movable part 18 to move towards the cylindrical PDCPD product through its own elasticity. At this time, the movable part 18 drives the L plate 27 to move, and the L plate 27 pulls the damping part 25 to move. However, through the friction of the damping plate 23 and the damping part 25, the movable part 18 moves slowly towards the cylindrical PDCPD product. Thus, after the cylindrical PDCPD product is in place, the movable part 18 drives the inclined part 20 to contact the edge of the cylindrical PDCPD product. The inclined surface 20 first contacts the upper edge of the cylindrical PDCPD product. At this time, the inclined surface 20 is pushed upward into the movable part 18 by the cylindrical PDCPD product, so that the inclined surface 20 drives the first snap-fit ​​plate 21 to snap-fit ​​plate 22. When the first snap-fit ​​plate 21 snaps into the second snap-fit ​​plate 22, the movable part 18 stops moving, thereby driving the polishing wheel 31 to fit against the edge of the cylindrical PDCPD product.

[0028] When the inclined section 20 moves upward, it pushes the blockage part 36 toward the spring 35, thereby separating the blockage part 36 from the annular plate 37. At this time, the water in the inner cavity of the control cylinder 34 enters the spray pipe 32 through the gap between the blockage part 36 and the annular plate 37, and is finally sprayed onto the surface of the polishing wheel 31 through the spray head 33. At the same time, the motor 30 is started to drive the polishing wheel 31 to rotate and polish the outer circle of the cylindrical PDCPD product, thereby avoiding dust from flying. During the finishing process, motor 28 drives lead screw 29 to rotate. The rotation of lead screw 29 drives moving part 10 to move along the axis of lead screw 29 and rod 215, thereby moving the cylindrical PDCPD product. This allows grinding wheel 31 to grind and finish all the protrusions on one side of the cylindrical PDCPD product. After one side is finished, motor 12 drives lead screw 13 to rotate and move towards elastic element 216. At this time, the concave-convex plate 214 at the bottom of moving plate 7 contacts concave-convex plate 13. Through the uneven contact between concave-convex plate 13 and concave-convex plate 214 and the elasticity of elastic element 16, moving plate 7 vibrates, which in turn causes the cylindrical PDCPD product to vibrate, thus shaking off the water stains on the surface. At the same time, support part 4 contacts elastic element 216 and pulls pull rope 17, causing moving part 18 to move and reset towards pull rope 17.

[0029] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited thereto. Various changes can be made within the scope of knowledge possessed by those skilled in the art without departing from the spirit of the present invention.

Claims

1. A grinding and dressing device for the outer surface of a cylindrical PDCPD product, comprising a support table (1), characterized in that, Also includes: A clamping mechanism is mounted on a support platform (1) and is used to clamp PDCPD products and drive them to rotate. The grinding mechanism is mounted on the support table (1); The spraying mechanism is mounted on the grinding mechanism and moves closer to the PDCPD product as the grinding mechanism approaches. The grinding mechanism includes a pulling component, a triggering component, a damping component, a grinding component, and a moving part (18); one end of the pulling component is installed in the support table (1), and the other end is connected to the moving part (18); the moving part (18) is elastically connected in the support table (1); the triggering component is installed in the moving part (18) and carries the grinding component to fit against the edge of the PDCPD product; the damping component is installed on the support table (1) and is used to reduce the moving speed of the triggering component towards the PDCPD product; the grinding component is installed on the side of the moving part (18) and is used to trim the outer cylindrical surface of the PDCPD product, and the outer surface of the PDCPD product forms a cylinder; after the clamping mechanism moves the PDCPD product to a fixed position, the moving part (18) moves towards the edge of the PDCPD product, and then the grinding component grinds the outer surface of the cylindrical PDCPD product.

2. The grinding and dressing device for the outer surface of a cylindrical PDCPD product according to claim 1, characterized in that, The pulling assembly includes an elastic element two (16) and a pull rope (17); The two ends of the elastic element 2 (16) are connected to the support platform (1) and the pull rope (17) respectively; the two ends of the pull rope (17) are connected to the elastic element 2 (16) and the movable part (18) respectively.

3. The grinding and dressing device for the outer surface of a cylindrical PDCPD product according to claim 1, characterized in that, The triggering components include elastic element three (19), inclined part (20), snap-fit ​​plate one (21) and snap-fit ​​plate two (22); The two ends of the elastic element three (19) are respectively connected to the inner wall of the movable part (18) and the inclined part (20); the inclined part (20) is movably sleeved in the movable part (18); the snap-fit ​​plate one (21) is connected to the inclined part (20); the snap-fit ​​plate two (22) is installed on the inner wall and inserted in the movable part (18) and is located on the moving path of the snap-fit ​​plate one (21).

4. The grinding and dressing device for the outer surface of a cylindrical PDCPD product according to claim 1, characterized in that, The damping assembly includes a damping plate (23), an elastic element four (24), a damping part (25), an elastic element five (26), and an L-plate (27); The damping plate (23) is installed on the inner wall of the support platform (1), the elastic element four (24) is installed on the inner wall of the support platform (1), the damping part (25) is connected to the elastic element four (24), the two ends of the elastic element five (26) are respectively connected to the movable part (18) and the inner wall of the support platform (1); the two sides of the L plate (27) are respectively connected to the movable part (18) and the moving damping part (25); the damping part (25) and the damping plate (23) are slidably connected.

5. The grinding and dressing device for the outer surface of a cylindrical PDCPD product according to claim 1, characterized in that, The grinding assembly includes a lead screw (28), a mounting part (29), a motor (30), a grinding wheel (31), and a rod (38). The lead screw three (28) is movably connected to the outside of the movable part (18); the mounting part (29) is threaded to the lead screw three (28); the motor three (30) is mounted on the mounting part (29); the output shaft of the motor three (30) is connected to the grinding wheel (31); the grinding wheel (31) rotates and grinds after the movable part (18) moves to the edge of the PDCPD product; the rod three (38) is mounted on the outside of the movable part (18), and the mounting part (29) movably connects to the rod three (38).

6. The grinding and dressing device for the outer surface of a cylindrical PDCPD product according to claim 1, characterized in that, The clamping mechanism includes a motor (2), a lead screw (3), a support (4), a rod (5), a rotating unit, and a vibration unit; Motor 1 (2) is installed on the outside of support platform (1); its output shaft is connected to lead screw 1 (3); support part (4) is threaded to lead screw 1 (3); rod 1 (5) is installed at the bottom of the inner cavity of support platform (1), and its surface is movably connected to support part (4); rotating unit is elastically connected to support part (4), and vibration unit is installed on rotating unit.

7. The grinding and dressing device for the outer surface of a cylindrical PDCPD product according to claim 6, characterized in that, The rotating unit includes a moving plate (7), a second motor (8), a second lead screw (9), a moving part (10), a clamping turntable (11), a cylinder (12), and a second rod (15). The movable plate (7) is elastically connected to the support part (4); the second motor (8) is installed outside the movable plate (7), and the output shaft of the second motor (8) is connected to the second lead screw (9), and the second lead screw (9) is threadedly engaged with the movable part (10); the cylinder (12) is installed on the top of the movable part (10), and the output shaft of the cylinder (12) and the bottom of the inner cavity of the movable part (10) are both equipped with a clamping turntable (11); the second rod (15) is installed on the movable plate (7), and the movable part (10) is movably connected to the second rod (15).

8. The grinding and dressing device for the outer surface of a cylindrical PDCPD product according to claim 1, characterized in that, The vibration unit includes a first concave-convex plate (13) and a second concave-convex plate (14). The first concave-convex plate (13) is installed on the inner wall of the support platform (1), and the second concave-convex plate (14) is installed below the movable plate (7); the first concave-convex plate (13) is located on the moving path of the second concave-convex plate (14).

9. The grinding and dressing device for the outer surface of a cylindrical PDCPD product according to claim 3, characterized in that, The spraying mechanism includes a spray pipe (32), a spray head (33), a control cylinder (34), a spring (35), a blocking part (36), and an annular plate (37). The spray pipe (32) is installed on the movable part (18) and moves with the movable part (18); the two ends of the spray pipe (32) are connected to the spray head (33) and the control cylinder (34) respectively; the two ends of the spring (35) are connected to the inner wall of the control cylinder (34) and the blocking part (36) respectively; the annular plate (37) is installed above the connection between the control cylinder (34) and the spray pipe (32); the blocking part (36) covers the annular plate (37), and the bottom of the blocking part (36) penetrates the control cylinder (34) and is located on the rising path of the inclined part (20).

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