Aluminum disc of sueding machine and processing technology

Abstract

The invention relates to the technical field of textile equipment, and discloses a sueding machine aluminum disc and a machining technology.The sueding machine aluminum disc comprises a circular ring part and a circular tube part which are integrally connected, the circular ring part and the circular tube part are coaxially arranged, and the circular ring part is provided with two wire penetrating holes and a guide hole; the pipe wall, close to the circular ring part, of the circular pipe part is provided with two wire guiding through grooves communicated with the wire penetrating holes, the pipe wall, away from the circular ring part, of the circular pipe part is provided with a fixing hole and a positioning hole, the outer wall of the circular pipe part is provided with an annular groove, and a resin ring is embedded in the annular groove. Through the arrangement of the resin ring, when the aluminum disc is unbalanced in rotation after being used for a long time, a worker can recover the dynamic balance state of the aluminum disc through a dynamic balance test and a resin ring grinding mode, so that the aluminum disc can keep high coaxiality after being rotated on a machine, and the situation that the aluminum disc shakes during rotation is avoided.

Description

Technical Field

[0001] This invention relates to the field of textile equipment technology, specifically to an aluminum disc for a napping machine and its processing technology. Background Technology

[0002] Textile napping machines play a vital role in the textile industry. They perform napping treatments on fabric surfaces, giving them a soft, comfortable feel and a unique appearance, meeting the demand for high-quality textiles. With the continuous development of the textile industry, the performance and efficiency requirements for napping machines are also increasing. Various components of napping machines are constantly being improved and optimized to adapt to industry trends.

[0003] In the field of textile machinery brushing machines, various methods are conventionally used to solve problems related to spindle support and yarn guidance. Previously, large aluminum discs were typically used as spindle discs. These discs guide the yarn through guide holes and threading holes in the annular and tubular sections. To meet different production needs, the aluminum discs undergo special processing, such as surface treatment, to improve their wear resistance and service life. Simultaneously, traditional turning and milling processes are employed during manufacturing to ensure the dimensional and shape accuracy of the aluminum discs.

[0004] However, existing technologies have significant drawbacks. Previous aluminum discs were large and operated at high speeds, resulting in high energy consumption. While thinning was implemented to achieve a lightweight design and reduce energy consumption, this increased the difficulty of manufacturing and placed higher demands on machining precision, particularly ensuring coaxiality, which in turn affected dynamic balance. Summary of the Invention

[0005] The purpose of this invention is to provide a grinding machine aluminum disc and processing technology to solve the above-mentioned problems and overcome the defects of the prior art, as detailed below.

[0006] To achieve the above objectives, the present invention provides the following technical solution:

[0007] The present invention provides an aluminum disc for a sanding machine, comprising: an integrally connected annular portion and a cylindrical portion, the annular portion and the cylindrical portion being coaxially arranged; the annular portion having two threading holes and a guide hole; the cylindrical portion having two guide grooves communicating with the threading holes respectively on the tube wall near the annular portion; the cylindrical portion having a fixing hole and a positioning hole on the tube wall away from the annular portion; the outer wall of the cylindrical portion having an annular groove, in which a resin ring is embedded; and the inner side wall of the cylindrical portion having an annular protrusion corresponding to the annular groove.

[0008] A processing technology for a sanding machine aluminum disc includes the following steps:

[0009] S1 turning process: using a CNC lathe to rough turn and finish turn the annular part and the circular tube part of the aluminum disc blank, to form the outer circular surface and annular groove of the circular tube part, the inner hole surface and inner circular surface of the annular protrusion of the circular tube part, and the outer circular surface of the annular part.

[0010] S2 milling is performed using a four-axis CNC milling machine, and is divided into the following two steps: S2-1, the aluminum disc processed in S1 is clamped and tightened by the fixture on the milling machine, and the guide wire groove, positioning hole and fixing hole on the round tube section are milled and shaped; S2-2, the round tube section of the aluminum disc is clamped and positioned by the tube clamping device, and the two wire threading holes and guide holes on the annular section are milled and shaped by the milling machine.

[0011] S3 surface treatment involves anodizing the aluminum disc to improve its surface hardness.

[0012] S4 resin ring processing involves placing the circular tube into a resin molding mold and injecting resin material to form a resin ring.

[0013] S5 Dynamic balancing adjustment involves performing dynamic balancing tests on the aluminum disc and adjusting the dynamic balance by grinding the resin ring.

[0014] Preferably, the tube clamping device includes a positioning mold, which has four pairs of clamping holes for positioning the round tube.

[0015] The positioning mold is equipped with a clamping mechanism, which includes four pairs of clamping blocks and four trapezoidal blocks. The four pairs of clamping blocks are used to clamp the round tube parts in the four pairs of clamping holes respectively. When the clamping blocks move down, they can trigger a pair of trapezoidal blocks to protrude from the inner wall of the round tube part for clamping.

[0016] The positioning mold is provided with a positioning mechanism, which includes eight positioning pins. The positioning pins can pass laterally through the clamping hole and the two guide wire grooves of the inner round tube to fix the processing angle of the round tube.

[0017] The positioning mold is equipped with a spring-back mechanism, which includes eight slide rods. The top of each slide rod is connected to a tray, which is located inside the clamping hole. A second spring is connected between the tray and the bottom of the clamping hole. The tray is used to push the round tube out of the clamping hole by the spring force after processing.

[0018] Preferably, the positioning mold has four mounting slots, which are respectively connected to four pairs of clamping holes. The four pairs of clamping blocks are horizontally slidably connected in the four mounting slots of the positioning mold, and the four trapezoidal blocks are vertically slidably connected in the four mounting slots of the positioning mold. Two first springs are connected between a pair of clamping blocks. The two sides of the trapezoidal block are respectively in contact with two clamping blocks that are in the same pair. When the trapezoidal block moves down, it can drive the two trapezoidal blocks in contact with it to protrude out of the inner wall of the clamping hole. A first lead screw is threaded through the trapezoidal block. The bottom end of the first lead screw is rotatably connected in the mounting slot of the positioning mold. When the first lead screw rotates, it can drive the trapezoidal block to move down.

[0019] Preferably, the positioning mold has eight horizontal holes, which are respectively connected to eight clamping holes, and the eight positioning pins are respectively horizontally slidably connected in the eight horizontal holes of the positioning mold.

[0020] Preferably, the positioning mechanism further includes a slotted plate, which is horizontally slidably connected to the positioning mold. The slotted plate has eight first sliding grooves, and each of the eight positioning pins is connected to a first sliding shaft. The eight first sliding shafts are slidably connected to the eight first sliding grooves. When the slotted plate moves, it can drive the eight first sliding shafts to move away from the transverse central axis of the positioning mold synchronously through the eight first sliding grooves.

[0021] Preferably, a second lead screw is rotatably mounted on the positioning mold, a nut seat is connected to the groove plate, the nut seat is threadedly connected to the second lead screw, and a crank is connected to the second lead screw so that the nut seat can move horizontally when the second lead screw rotates.

[0022] Preferably, the clamping mechanism further includes four racks, all of which are horizontally slidably mounted on the positioning mold. Each of the four first lead screws has a toothed ring connected to its top, and the toothed rings mesh with the four racks. A second sliding shaft is inserted into each rack. The slotted plate has four second sliding grooves, and the four second sliding shafts are slidably connected to the four second sliding grooves. When the slotted plate moves, it can drive the four second sliding shafts to synchronously move away from the transverse central axis of the positioning mold through the four second sliding grooves. When the racks move away from the transverse central axis of the positioning mold, they can drive the first lead screws to rotate through the toothed rings.

[0023] Preferably, all eight slide rods are vertically slidably connected to the bottom of the positioning mold, with the top ends of the eight slide rods respectively located in the eight clamping holes of the positioning mold, and the bottom outer wall of the slide rods is connected to a clamp, which is located below the bottom outer wall of the positioning mold.

[0024] Preferably, the rebound mechanism further includes a connecting plate, which is slidably mounted on the bottom of the positioning mold. The connecting plate is connected to the nut seat, and eight magnetic blocks are connected to the connecting plate. During the movement, the eight magnetic blocks can respectively contact the bottom of the eight slide rods.

[0025] The beneficial effects are:

[0026] 1. The aluminum disc of this sanding machine, after undergoing surface anodizing treatment, increases its surface hardness, thereby reducing the probability of deformation during subsequent use and extending its service life. The resin ring design allows operators to restore the dynamic balance of the aluminum disc after prolonged use by performing dynamic balancing tests and grinding the resin ring. This ensures the aluminum disc maintains high coaxiality after rotation on the machine, preventing vibration during rotation.

[0027] 2. The processing technology of the aluminum disc of this grinding machine, through the setting of the clamping mechanism, enables eight clamping blocks to stably clamp the eight round tube parts on the positioning mold, so as to ensure the stability of the round tube parts and the ring parts during processing; through the setting of four second sliding shafts and four racks, the positioning mechanism can be triggered by the operator rotating the second lead screw, and the positioning mechanism can trigger the eight clamping blocks to clamp at the same time, eliminating the need for the operator to manually trigger the clamping mechanism, further improving the convenience of operation and speeding up the work efficiency.

[0028] 3. The processing technology of the aluminum disc of this grinding machine, through the setting of the positioning mechanism, enables eight positioning pins to respectively position the eight round tube parts on the positioning mold at an angle, avoiding the rotation of the round tube parts due to external forces during processing, thus preventing processing deviations; through the setting of the slot plate, the operator can indirectly drive the eight positioning pins to synchronously position the eight round tube parts on the positioning mold at an angle by rotating the second lead screw. Similarly, rotating the second lead screw in the opposite direction can realize the synchronous release of the angle positioning of the eight positioning pins, making the operation convenient and improving the work efficiency.

[0029] 4. The processing technology of the aluminum disc of this grinding machine, through the setting of the spring mechanism, allows the circular part and the circular tube part on the positioning mold to be processed. After the circular tube part is released from clamping and angular positioning, the tray at the bottom of the circular tube part can use the elastic force of the second spring to lift the circular tube part a certain distance, making it easy for the operator to pick up. Through the setting of eight magnetic blocks, after the circular tube part is clamped and stabilized, the magnetic blocks can attract the sliding rod to avoid the tray from applying an upward pushing force to the circular tube part during processing, thereby avoiding the upward displacement of the circular tube part. Attached Figure Description

[0030] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0031] Figure 1 This is a schematic diagram of the circular tube structure of the present invention;

[0032] Figure 2 This is a schematic diagram of the resin ring structure of the present invention;

[0033] Figure 3 This is a schematic diagram of the annular portion structure of the present invention;

[0034] Figure 4 This is a schematic diagram of the clamping mechanism structure of the present invention;

[0035] Figure 5 This is a schematic diagram of the positioning mold structure of the present invention;

[0036] Figure 6 This is a schematic cross-sectional view of the positioning mold of the present invention;

[0037] Figure 7 This is a schematic diagram of the positioning mechanism structure of the present invention;

[0038] Figure 8 This is a schematic diagram of the groove plate structure of the present invention;

[0039] Figure 9 This is a schematic diagram of the positioning pin structure of the present invention;

[0040] Figure 10 This is a schematic diagram of the rack structure of the present invention;

[0041] Figure 11 This is a schematic diagram of the second sliding shaft structure of the present invention;

[0042] Figure 12 This is a schematic diagram of the springback mechanism of the present invention.

[0043] The annotations in the attached figures are explained as follows:

[0044] 11. Circular ring section; 12. Circular tube section; 13. Wire threading hole; 14. Guide hole; 15. Wire guide groove; 16. Fixing hole; 17. Positioning hole; 18. Resin ring;

[0045] 2. Positioning mold;

[0046] 3. Clamping mechanism; 31. Clamping block; 32. First spring; 33. Trapezoidal block; 34. First lead screw; 35. Gear ring; 36. Gear rack; 37. Second sliding shaft; 38. Second sliding groove;

[0047] 4. Positioning mechanism; 41. Positioning pin; 42. First sliding shaft; 43. Groove plate; 44. First sliding groove; 45. Nut seat; 46. Second lead screw; 47. Handle;

[0048] 5. Rebound mechanism; 51. Slide rod; 52. Tray; 53. Clamp; 54. Second spring; 55. Connecting plate; 56. Magnetic block. Detailed Implementation

[0049] To make the objectives, technical solutions, and advantages of this invention clearer, the technical solutions of this invention will be described in detail below. Obviously, the described embodiments are merely some embodiments of this invention, and not all embodiments. Based on the embodiments of this invention, all other implementation methods obtained by those skilled in the art without creative effort are within the scope of protection of this invention.

[0050] One embodiment of the present invention is as follows:

[0051] Please see Figure 1 - Figure 3A grinding machine aluminum disc includes: an integrally connected annular portion 11 and a cylindrical portion 12, coaxially arranged. The annular portion 11 has two threading holes 13 and a guide hole 14. The cylindrical portion 12 has two guide grooves 15 on its wall near the annular portion 11, each communicating with one of the threading holes 13. The cylindrical portion 12 has a fixing hole 16 and a positioning hole 17 on its wall away from the annular portion 11. An annular groove is provided on the outer wall of the cylindrical portion 12, and a resin ring 18 is embedded within the annular groove. An annular protrusion is provided on the inner wall of the cylindrical portion 12 corresponding to the annular groove. The annular portion 11 and the cylindrical portion 12 together form a complete aluminum disc. The guide hole 14 serves for positioning and assembly. The fixing hole 16 and the positioning hole 17 on the cylindrical portion 12 are used for connection to a spindle via a connector. The threading holes 13 and the guide grooves 15 are used for... After the yarn is threaded, the round tube 12 connects to the spindle, and the yarn rotates by rotation. However, after prolonged use, the aluminum disc may experience localized deformation and wear, causing it to vibrate due to an imbalance in the center of gravity during rotation. In this case, the aluminum disc can be disassembled and a dynamic balancing test can be performed. The resin ring 18 can be polished multiple times. Based on the data from the dynamic balancing test, the localized areas of the resin ring 18 are polished to stabilize the overall center of gravity of the aluminum disc again. This ensures that the aluminum disc maintains a high degree of coaxiality after rotation on the machine, preventing vibration during rotation. By using the resin ring 18, when the aluminum disc becomes unbalanced after prolonged use, the operator can restore the dynamic balance of the aluminum disc through dynamic balancing tests and polishing the resin ring 18, ensuring that the aluminum disc maintains a high degree of coaxiality after rotation on the machine and preventing vibration during rotation.

[0052] Based on the above embodiments, another embodiment of the present invention is as follows:

[0053] A processing technology for a sanding machine aluminum disc, used to process a sanding machine aluminum disc according to the above embodiment, includes the following steps:

[0054] S1 turning process: The circular ring part 11 and the circular tube part 12 of the aluminum disc blank are rough turned and finish turned using a CNC lathe. The outer circular surface and annular groove of the circular tube part 12, the inner hole surface and the inner circular surface of the annular protrusion of the circular tube part 12, and the outer circular surface of the circular ring part 11 are machined. The length of the circular tube part 12 is 54.3 mm.

[0055] S2 milling is performed using a four-axis CNC milling machine, and is divided into the following two steps: S2-1, the aluminum disc processed in S1 is clamped and tightened by the fixture on the milling machine, and the guide wire groove 15, positioning hole 17 and fixing hole 16 on the round tube part 12 are milled and shaped; S2-2, the round tube part 12 of the aluminum disc is clamped and positioned by the tube clamping device, and the two wire through holes 13 and guide holes 14 on the ring part 11 are milled and shaped by the milling machine. The four-axis CNC milling machine is set with a speed of 1500 rpm, a feed rate of 100 mm per minute and a depth of cut of 0.2 mm. Low temperature air cooling is used during the processing. After the milling is completed, the aluminum disc is obtained.

[0056] S3 surface treatment involves placing an aluminum disc in a special mold and anodizing it to improve surface hardness. During the process, the electrolyte concentration is 135 g / L sulfuric acid, the oxidation temperature is controlled at -1 degree Celsius, the oxidation current density is 3.3 amperes per square decimeter, and the oxidation time is controlled at 5 hours.

[0057] The S4 resin ring 18 is processed by pre-treating and mixing the raw materials. The epoxy resin, curing agent, glass fiber powder, and additives used as the matrix are mixed in a ratio of 5.5:1:3:0.5 and vacuum stirred at a low speed of 600 rpm. Then, the round tube 12 is placed into the resin molding mold, and the resin material is injected to form the resin ring 18. The injection pressure is 6 MPa, and the pressure is held for 7 minutes to prevent backflow of the resin. After injection, it is cured at low temperature for 3 hours. The degree of curing needs to reach more than 90% to avoid deformation after demolding. After demolding, the aluminum disc with the resin ring 18 is placed at room temperature for 8 hours to cure. After the aluminum disc is anodized, its surface hardness can be increased, thereby reducing the probability of deformation during subsequent use and extending its service life.

[0058] S5 Dynamic Balance Adjustment: Place the aluminum disc in a dynamic balance testing instrument to perform dynamic balance testing on the aluminum disc. Based on the dynamic balance test results, use a grinding machine to grind a local area of ​​the resin ring 18. Adjust the dynamic balance by grinding the resin ring 18, and then perform dynamic balance testing on the aluminum disc again to ensure that the circular runout of the aluminum disc is kept within ±0.003 mm when the aluminum disc rotates between 15,000 and 20,000 revolutions per minute.

[0059] Based on the above embodiments, another embodiment of the present invention is as follows:

[0060] Please see Figure 4 - Figure 12 The following text will all be in the format of " Figure 1Using the front, back, left, right, up, and down directions as reference datums, the tube clamping device includes a positioning mold 2. The positioning mold 2 has four pairs of clamping holes, which are used for positioning the round tube 12. The positioning mold 2 can fix a total of eight round tubes 12 at a time. During processing, the eight round tubes 12 are inserted into the eight clamping holes respectively to fix the eight round tubes 12 before subsequent processing to ensure the stability of the round tubes 12 during processing.

[0061] Furthermore, the positioning mold 2 is equipped with a clamping mechanism 3, which includes four pairs of clamping blocks 31 and four trapezoidal blocks 33. The four pairs of clamping blocks 31 are used to clamp the circular tube portion 12 in the four pairs of clamping holes. When the clamping blocks 31 move downward, they can trigger a pair of trapezoidal blocks 33 to protrude from the inner wall of the circular tube portion 12 for clamping. The positioning mold 2 has four mounting slots, which are respectively connected to the four pairs of clamping holes. The four pairs of clamping blocks 31 are horizontally slidably connected in the four mounting slots of the positioning mold 2, and the four trapezoidal blocks 33 are vertically slidably connected in the four mounting slots of the positioning mold 2. Two first springs 32 are connected between a pair of clamping blocks 31. The two sides of a trapezoidal block 33 contact the two clamping blocks 31, which are also a pair. When the trapezoidal block 33 moves downward, it can cause the two trapezoidal blocks 33 in contact with it to protrude from the inner wall of the clamping hole. A first lead screw 34 is threaded through the trapezoidal block 33. The bottom end of the first lead screw 34 is rotatably connected to the mounting groove of the positioning mold 2. When the first lead screw 34 rotates, it can cause the trapezoidal block 33 to move downward. The trapezoidal block 33 has inclined surfaces on both sides, and the contact surface between the clamping block 31 and the trapezoidal block 33 is also inclined. When the trapezoidal block 33 moves downward, it can use its two inclined surfaces to... Two clamping blocks 31 are pressed together from both sides. When the trapezoidal block 33 moves downward, it can drive the two trapezoidal blocks 33 in the same pair to move away from each other. After the eight round tube sections 12 are respectively inserted into the eight clamping holes, the four first screws 34 are rotated. The top of the first screw 34 is provided with a cross groove for easy rotation with a screwdriver. When the first screw 34 rotates, it drives the trapezoidal block 33 connected to it to move downward. After the trapezoidal block 33 moves downward, it presses the pair of clamping blocks 31 in contact with it to both sides. This causes the clamping block 31 to protrude from the inner wall of the clamping hole and contact the round tube section 12. The clamping block 31, through its cooperation with the clamping hole, clamps the round tube section 12. The clamping mechanism 12 is stable. When it is necessary to remove the round tube 12, the first lead screw 34 is rotated in the opposite direction, so that the first lead screw 34 drives the trapezoidal block 33 to move upward. Then, the pair of clamping blocks 31 are driven to move closer to each other by the first spring 32 between them, so that the two clamping blocks 31 always maintain contact with the trapezoidal block 33. Finally, the clamping blocks 31 are released from the inner wall of the clamping hole, releasing the clamping of the round tube 12. Through the setting of the clamping mechanism 3, the eight clamping blocks 31 can stably clamp the eight round tubes 12 on the positioning mold 2 respectively, so as to ensure the stability of the round tube 12 and the ring part 11 during processing.

[0062] Furthermore, the positioning mold 2 is equipped with a positioning mechanism 4, which includes eight positioning pins 41. The positioning pins 41 can pass laterally through the clamping holes and the two guide wire grooves 15 of the internal circular tube portion 12 to fix the machining angle of the circular tube portion 12. The positioning mold 2 has eight horizontal holes, each communicating with one of the eight clamping holes. The eight positioning pins 41 are horizontally slidably connected within the eight horizontal holes of the positioning mold 2. Since the circular tube portion 12 and the annular portion 11 need to have their angles fixed during machining to avoid deviations in the machining position, the positioning pins 41 can pass through the clamping holes of the positioning mold 2 from the horizontal holes. When the circular tube portion 12 is inserted into the clamping hole… First, manually adjust the angle of the ring part 11, and then insert the positioning pin 41. The outer diameter of the positioning pin 41 matches the inner diameter of the guide wire groove 15 of the round tube part 12. The end of the positioning pin 41 near the round tube part 12 is set as a hemispherical shape, which makes it easy for the positioning pin 41 to be inserted into the guide wire groove 15 of the round tube part 12. When the positioning pin 41 passes through the clamping hole and the guide wire groove 15 of the round tube part 12, the positioning pin 41 performs angular positioning on the round tube part 12. Through the setting of the positioning mechanism 4, the eight positioning pins 41 can respectively perform angular positioning on the eight round tube parts 12 on the positioning mold 2, so as to avoid the round tube parts 12 from rotating due to external force during processing, which would lead to processing deviation.

[0063] In addition, the positioning mechanism 4 also includes a slotted plate 43, which is horizontally slidably connected to the positioning mold 2. The slotted plate 43 has eight first sliding grooves 44, and eight positioning pins 41 are respectively connected to first sliding shafts 42. The eight first sliding shafts 42 are slidably connected to the eight first sliding grooves 44. When the slotted plate 43 moves, it can drive the eight first sliding shafts 42 to move synchronously away from the transverse central axis of the positioning mold 2 through the eight first sliding grooves 44. A second lead screw 46 is rotatably mounted on the positioning mold 2. A nut seat 45 is connected to the slotted plate 43, and the nut seat 45 is threadedly connected to the second lead screw 46. A crank handle 47 is connected to the second lead screw 46. When the second lead screw 46 rotates, it can drive the nut seat 45 to move horizontally. When the eight positioning pins 41 are inserted, the crank handle 47 rotates the second lead screw 46, and the second lead screw 46, through the threaded connection, drives the nut seat 45 to move to the right, while the nut seat 45 drives the slotted plate 43 to move horizontally. When the slot plate 43 moves to the right, it drives the eight first sliding shafts 42 to slide through the eight first sliding grooves 44 respectively. The sliding direction of the eight first sliding shafts 42 is respectively towards the eight clamping holes of the positioning mold 2. Since the first sliding shafts 42 drive the positioning pins 41 to move synchronously when they move, the eight positioning pins 41 can be inserted into the eight clamping holes at the same time. Conversely, when the second lead screw 46 is rotated in the opposite direction, the slot plate 43 moves to the left and drives the eight first sliding shafts 42 to reset, so that the eight positioning pins 41 are disengaged from the eight clamping holes and the round tube 12 respectively, thereby releasing the angle positioning. Therefore, through the setting of the slot plate 43, the operator can indirectly drive the eight positioning pins 41 to synchronously perform angle positioning on the eight round tubes 12 on the positioning mold 2 by rotating the second lead screw 46. Similarly, rotating the second lead screw 46 in the opposite direction can realize the synchronous release of angle positioning of the eight positioning pins 41. The operation is convenient and improves the work efficiency.

[0064] It is worth noting that the clamping mechanism 3 also includes four racks 36, which are horizontally slidably mounted on the positioning mold 2. The tops of the four first lead screws 34 are respectively connected to toothed rings 35, which mesh with the four racks 36. Second sliding shafts 37 are inserted into the racks 36. The slot plate 43 has four second sliding grooves 38, and the four second sliding shafts 37 are slidably connected to the four second sliding grooves 38. When the slot plate 43 moves, it can drive the four second sliding shafts 37 to move synchronously away from the transverse central axis of the positioning mold 2 through the four second sliding grooves 38. When the racks 36 move away from the transverse central axis of the positioning mold 2, they can drive the first lead screws 34 to rotate through the toothed rings 35. Simultaneously with the rightward movement of the slot plate 43, the slot plate 43 drives the four second sliding shafts 37 to move towards the four toothed rings 35 through the four second sliding grooves 38. Because the movement of the second sliding shafts 37 drives the racks 36 to move synchronously, the four racks 36 move in a synchronized manner. The four first lead screws 34 are rotated by the four toothed rings 35. The thread direction of the four first lead screws 34 is set in advance so that when the four first lead screws 34 rotate synchronously in the state of the groove plate 43 moving to the right, they can drive the four trapezoidal blocks 33 to move down, thereby triggering the eight clamping blocks 31 to clamp and fix the eight round tube parts 12. Conversely, when the groove plate 43 moves to the left, the four racks 36 are reset synchronously, and the four first lead screws 34 rotate and reset accordingly, so that the eight clamping blocks 31 release the clamp. In addition, the second sliding shaft 37 can be pulled out from the rack 36. When automatic clamping is not required, the second sliding shaft 37 can be pulled out. With the setting of the four second sliding shafts 37 and the four racks 36, when the operator triggers the positioning mechanism 4 by rotating the second lead screw 46, the positioning mechanism 4 can trigger the eight clamping blocks 31 to clamp, saving the operator from manually triggering the clamping mechanism 3, further improving the convenience of operation and speeding up the work efficiency.

[0065] It is worth mentioning that the positioning mold 2 is equipped with a spring-back mechanism 5, which includes eight slide rods 51. The top of each slide rod 51 is connected to a tray 52, which is located inside the clamping hole. A second spring 54 is connected between the tray 52 and the bottom of the clamping hole. The tray 52 is used to push the round tube 12 out of the clamping hole using its elastic force after processing. The eight slide rods 51 are all vertically slidably connected to the bottom of the positioning mold 2. The top of each of the eight slide rods 51 is located in one of the eight clamping holes of the positioning mold 2. A clamp 53 is connected to the outer wall of the bottom end of each slide rod 51, and the clamp 53 is located below the bottom outer wall of the positioning mold 2. After the eight round tubes 12 are inserted into the eight clamping holes of the positioning mold 2, the eight rings 11 are pressed down using a tool, such as using two pressure strips to temporarily press down the eight rings 11, so that the rings 11 fit against the top surface of the positioning mold 2. During this process, the bottom of the round tube 12 is connected to the spring-back mechanism 5. The pallet 52 is touched and pushed downwards, causing the pallet 52 to slide downwards along the slide bar 51. The second spring 54 is compressed and stored. After processing is completed and the clamping and angle positioning are released, the second spring 54 releases its elasticity, causing the slide bar 51 and the pallet 52 to move upwards and lift the round tube 12 a certain distance. The clamp 53 at the bottom of the slide bar 51 acts as a limit, so that after the slide bar 51 moves upwards a certain distance, the clamp 53 abuts against the bottom of the positioning mold 2, keeping the slide bar 51 at its current height and maintaining a relatively stable distance at which the slide bar 51 lifts the round tube 12. Through the setting of the springback mechanism 5, after the processing of the ring part 11 and the round tube part 12 on the positioning mold 2 is completed, after the round tube part 12 is released from the clamping and angle positioning state, the pallet 52 at the bottom of the round tube part 12 can use the elasticity of the second spring 54 to lift the round tube part 12 a certain distance, making it easy for the staff to pick it up.

[0066] It is worth noting that the springback mechanism 5 also includes a connecting plate 55, which is slidably mounted on the bottom of the positioning mold 2. The connecting plate 55 is connected to the nut seat 45, and eight magnetic blocks 56 are connected to the connecting plate 55. During the movement, the eight magnetic blocks 56 can contact the bottom of the eight slide rods 51 respectively. The slide rods 51 are made of metal and can be attracted by the magnetic blocks 56. When the clamping mechanism 3 and the positioning mechanism 4 start working, the slot plate 43 and the nut seat 45 move to the right. The nut seat 45 drives the eight magnetic blocks 56 to move to the right through the connecting plate 55, so that the eight magnetic blocks 56 contact the bottom of the slide rod 51. After the connecting plate 55 moves to the right position, the round tube 12 is clamped and stabilized. The slide rod 51 at the bottom of the round tube 12 is attracted by the magnetic blocks 56 using magnetic force. The attraction force of the magnetic blocks 56 on the slide rod 51 is greater than the elastic force applied by the second spring 54. Therefore, when the round tube 12 is processed, the tray 52 will not exert force on the round tube 12 due to the elastic force of the second spring 54. The upward thrust prevents the round tube 12 from shifting upward during processing, which would cause a gap to open between the bottom of the round tube 12 and the top surface of the positioning mold 2, affecting processing accuracy. After processing is completed, the nut seat 45 drives the connecting plate 55 to move to the left, causing the eight magnetic blocks 56 to gradually disengage from the eight sliding rods 51. After the clamping block 31 and the positioning pin 41 have both disengaged from the round tube 12, and the eight magnetic blocks 56 have completely disengaged from the eight sliding rods 51, the sliding rods 51 lose their magnetic influence. At this time, the tray 52 pushes the round tube 12 upward by the elastic force of the second spring 54, preventing the round tube 12 from being subjected to an upward thrust before it is disengaged from the clamping block 31 and the positioning pin 41, which would cause local deformation. The setting of the eight magnetic blocks 56 allows the magnetic blocks 56 to adhere to the sliding rods 51 after the round tube 12 is clamped and stabilized, thus preventing the tray 52 from applying an upward thrust to the round tube 12 during processing, thereby preventing the round tube 12 from shifting upward.

[0067] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in the present invention should be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope of the claims.

Claims

1. A sanding machine aluminum disc characterized in that, The application relates to a kind of aluminum disc and its processing method, including: The integral connection annular part (11) and circular tube part (12) are coaxially arranged, two wire holes (13) and guide holes (14) are arranged on the annular part (11), two guide wire grooves (15) are arranged on the wall of the circular tube part (12) close to the annular part (11), the wall of the circular tube part (12) away from the annular part (11) is provided with a fixing hole (16) and a positioning hole (17), an annular groove is arranged on the outer wall of the circular tube part (12), and a resin ring (18) is embedded in the annular groove, and a ring-shaped protrusion is arranged on the inner side wall of the circular tube part (12) corresponding to the annular groove.

2. A process for the manufacture of an abrasive disc as claimed in claim 1, characterized in that, The application further discloses a processing method of the aluminum disc, including the following steps: S1 turning processing, rough turning and finish turning of the annular part (11) and the circular tube part (12) of the aluminum disc blank are carried out by using a numerical control lathe, and the outer cylindrical surface and the annular groove of the circular tube part (12), the inner hole surface and the inner cylindrical surface of the ring-shaped protrusion of the circular tube part (12), and the outer cylindrical surface of the annular part (11) are formed; S2 milling processing, milling processing is carried out by using a four-axis numerical control milling machine, and the milling processing is divided into the following two steps, S2-1, the two ends of the aluminum disc processed in S1 are clamped and tightly pressed by using a clamp on the milling machine, and the guide wire grooves (15), the positioning hole (17) and the fixing hole (16) on the circular tube part (12) are milled and formed; S2-2, the circular tube part (12) of the aluminum disc is clamped and positioned by using a pipe part clamping device, and the two wire holes (13) and the guide hole (14) on the annular part (11) are milled and formed by using a milling machine; S3 surface treatment, anodic oxidation treatment is carried out on the aluminum disc to improve the surface hardness; S4 resin ring (18) processing, the circular tube part (12) is placed in a resin forming mold, and resin material is injected to form the resin ring (18); S5 dynamic balance adjustment, dynamic balance detection is carried out on the aluminum disc, and the dynamic balance is adjusted by grinding on the resin ring (18).

3. A process for the manufacture of an abrasive disc according to claim 2, characterized in that, The pipe part clamping device includes a positioning mold (2), four pairs of clamping holes are arranged on the positioning mold (2), and the clamping holes of the positioning mold (2) are used for positioning the circular tube part (12); A clamping mechanism (3) is arranged on the positioning mold (2), the clamping mechanism (3) includes four pairs of clamping blocks (31) and four trapezoidal blocks (33), the four pairs of clamping blocks (31) are respectively used for clamping the circular tube part (12) in the four pairs of clamping holes, and when the clamping block (31) moves downward, one pair of trapezoidal blocks (33) can protrude from the inner wall of the circular tube part (12) to clamp; A positioning mechanism (4) is arranged on the positioning mold (2), the positioning mechanism (4) includes eight positioning pins (41), and the positioning pins (41) can transversely pass through the clamping hole and the two guide wire grooves (15) in the inner circular tube part (12) to fix the processing angle of the circular tube part (12). The positioning mold (2) is provided with a rebound mechanism (5), the rebound mechanism (5) includes eight slide rods (51), the top end of the slide rod (51) is connected with a tray (52), the tray (52) is located in the clamping hole, the tray (52) is connected with the second spring (54) between the bottom of the clamping hole, the tray (52) is used for using the elastic force to eject the circular tube part (12) from the clamping hole after processing is completed.

4. A process for the manufacture of an abrasive disc as claimed in claim 3, characterized in that, Four mounting grooves are formed in the positioning mold (2), four mounting grooves of the positioning mold (2) are communicated with four pairs of clamping holes respectively, four pairs of the clamping blocks (31) are horizontally and slidingly connected in the four mounting grooves of the positioning mold (2) respectively, four trapezoidal blocks (33) are vertically and slidingly connected in the four mounting grooves of the positioning mold (2) respectively, two first springs (32) are connected between a pair of the clamping blocks (31), the two sides of the trapezoidal block (33) are in contact with the two clamping blocks (31) which are also a pair, when the trapezoidal block (33) moves downward, the two trapezoidal blocks (33) in contact with the trapezoidal block (33) can protrude from the inner wall of the clamping hole, a first lead screw (34) is threadedly connected through the trapezoidal block (33), the bottom end of the first lead screw (34) is rotatably connected in the mounting groove of the positioning mold (2), when the first lead screw (34) rotates, the trapezoidal block (33) can move downward.

5. A process for the manufacture of an abrasive disc as claimed in claim 4, characterised in that, Eight transverse holes are formed in the positioning mold (2), eight transverse holes are communicated with eight clamping holes respectively, eight positioning pins (41) are horizontally and slidingly connected in the eight transverse holes of the positioning mold (2) respectively.

6. A process for the manufacture of an abrasive disc as claimed in claim 5, characterised in that, The positioning mechanism (4) further includes a groove plate (43), the groove plate (43) is horizontally and slidingly connected on the positioning mold (2), eight first sliding grooves (44) are formed in the groove plate (43), a first sliding shaft (42) is connected on each of the eight positioning pins (41), eight first sliding shafts (42) are slidingly connected with eight first sliding grooves (44) respectively, when the groove plate (43) moves, eight first sliding shafts (42) can be driven to move away from the transverse central axis of the positioning mold (2) synchronously through eight first sliding grooves (44) respectively.

7. A process for the manufacture of an abrasive disc as claimed in claim 6, characterised in that, A second lead screw (46) is rotatably installed on the positioning mold (2), a nut seat (45) is connected on the groove plate (43), the nut seat (45) is threadedly connected with the second lead screw (46), a crank handle (47) is connected on the second lead screw (46), when the second lead screw (46) rotates, the nut seat (45) can move horizontally.

8. A process for the manufacture of an abrasive disc as claimed in claim 7, characterised in that, The clamping mechanism (3) further comprises four racks (36), the four racks (36) are all horizontally and slidingly installed on the positioning mold (2), the four first lead screws (34) are respectively connected with a tooth ring (35), the four tooth rings (35) are respectively engaged with the four racks (36), the rack (36) is inserted with a second sliding shaft (37), the groove plate (43) is provided with four second sliding grooves (38), the four second sliding shafts (37) are respectively and slidingly connected with the four second sliding grooves (38), when the groove plate (43) moves, the four second sliding grooves (38) can respectively drive the four second sliding shafts (37) to synchronously move away from the transverse central axis of the positioning mold (2), when the rack (36) moves away from the transverse central axis of the positioning mold (2), the first lead screw (34) can be driven to rotate through the tooth ring (35).

9. A process for the manufacture of an abrasive disc as claimed in claim 7, characterized in that, Eight sliding rods (51) are all vertically and slidingly connected at the bottom of the positioning mold (2), the top ends of the eight sliding rods (51) are respectively located in the eight clamping holes of the positioning mold (2), the bottom outer wall of the sliding rod (51) is connected with a clamp (53), and the clamp (53) is located below the bottom outer wall of the positioning mold (2).

10. A process for the manufacture of an abrasive disc according to claim 9, characterized in that, The rebound mechanism (5) further comprises a connecting plate (55), the connecting plate (55) is slidingly installed at the bottom of the positioning mold (2), the connecting plate (55) is connected with the nut seat (45), and the connecting plate (55) is connected with eight magnetic blocks (56). In the movement process, the eight magnetic blocks (56) can respectively contact the bottoms of the eight sliding rods (51).

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