A fine-grinding diamond resin wheel and a forming method thereof

Abstract

The application discloses a precision grinding diamond resin grinding wheel and a forming method thereof, and belongs to the technical field of grinding wheel processing and forming. The forming method adopts equipment including a mold and a fixing cylinder, and further includes a driving mechanism. The application adopts a three-section type filler through cooperation of a first lifting groove, a second lifting groove and a rotating groove with a ball shaft. After half of the filler is filled, the material surface is automatically leveled by a detection roller, and the leveling degree is automatically detected. When the material surface pressure areas detected by each group of detection rollers are consistent, the moving distances of each group of piston rings and conductive contact pieces are close, until the adjacent conductive contact pieces of each group are close to contact, so that a complete loop is formed, and the yarn net is automatically laid through the rotation of the rotating rod. Compared with the traditional technology, the device adopts synchronous operation of material laying and leveling, can automatically detect the leveling degree and lay the yarn net, reduces manual operation and processing steps, and improves production efficiency and product quality.

Description

Technical Field

[0001] This invention relates to the field of grinding wheel processing and forming technology, and more specifically, to a precision grinding diamond resin grinding wheel and its forming method. Background Technology

[0002] Precision diamond resin grinding wheels are high-performance tools used for precision grinding of hard and brittle materials, typically manufactured using a hot-pressing process. To ensure safety and structural reliability under high-speed rotation, a reinforcing mesh is commonly added between the working and non-working layers of the grinding wheel, forming a sandwich-like structure. The core functions of the mesh are: firstly, to significantly improve the tensile strength and impact toughness of the grinding wheel, preventing it from cracking or delaminating under high-speed centrifugal force; secondly, to act as a stress transfer medium, optimizing the interface between the working layer and the substrate layer and inhibiting crack propagation; and thirdly, to enhance the overall rigidity of the grinding wheel, maintaining its geometric accuracy and grinding stability.

[0003] Traditional molding processes are typically discrete and segmented, with the following steps: First, the mixed matrix powder is loaded into the mold cavity. After manual or simple tool scraping and compaction, the operator needs to pause feeding and place the annular mesh in the center of the material surface, while avoiding wrinkles or shifting of the mesh. Only after the mesh is laid can the diamond working layer mixture be poured in. Finally, it enters the hot press for heating and pressure curing. The existing technology has low overall processing efficiency, relies on manual labor, and has a slow production cycle.

[0004] How to invent a precision-grinding diamond resin grinding wheel and its molding method to improve these problems has become an urgent problem to be solved by those skilled in the art. Summary of the Invention

[0005] To overcome the above deficiencies, the present invention provides a precision-grinding diamond resin grinding wheel and its molding method, aiming to improve the problems mentioned in the background art.

[0006] This invention is implemented as follows:

[0007] This invention provides a method for forming a precision diamond resin grinding wheel. The equipment used in the forming method includes a mold and a fixed cylinder, as well as a driving mechanism. The mechanism includes a cylinder positioned above the fixed cylinder for controlling the lifting and lowering of the fixed cylinder. A first motor is mounted on the top of the fixed cylinder, and the output shaft of the first motor is connected to a gear. A rotating cylinder is fitted inside the fixed cylinder, and a mesh is provided on the inner side of the rotating cylinder. A gear ring is provided on the inner side wall of the rotating cylinder, and a gear is provided between the gear ring and the gear for meshing transmission. The inner side wall of the fixed cylinder has a first lifting groove, a rotating groove, and a second lifting groove sequentially formed from bottom to top. A fork is designed between the second lifting groove and the rotating groove. A ball bearing is provided on the side wall of the rotating cylinder. The rotating cylinder is driven to rotate spirally or maintain horizontal rotation through the cooperation of the first lifting groove, the rotating groove, the second lifting groove, and the ball bearing.

[0008] The discharge mechanism includes a discharge cylinder set inside a fixed cylinder. The discharge cylinder has alternating storage chambers and discharge ports. A support plate is sleeved inside the storage chamber. A linkage ring connected to the support plate is set inside the fixed cylinder. A threaded sleeve is connected to the top of the linkage ring. A threaded tube is threaded inside the threaded sleeve. The output shaft of the first motor is connected to a blade that mates with the top of the storage chamber.

[0009] The detection mechanism includes a sealing groove at the bottom of a rotating cylinder, a detection cylinder sleeved vertically inside the sealing groove, a spring between the detection cylinder and the sealing groove, a detection roller connected to the bottom of the detection cylinder, a rotating rod rotatably connected inside the rotating cylinder and movably sleeved with the detection cylinder, a transmission groove communicating with the sealing groove inside the rotating cylinder, a piston ring sleeved on the side wall of the rotating rod, the piston ring being located inside the transmission groove and movably sleeved with the transmission groove, a conductive contact piece movably sleeved on the side wall of the rotating rod in the vertical direction, a support rod connecting the conductive contact piece and the piston ring, a detection switch inside the rotating cylinder, the two ends of the detection switch being connected to the two ends of two adjacent sets of conductive contacts respectively through wires, and a tactile switch cooperating with the detection roller at the bottom of the lifting cylinder, the tactile switch being electrically connected to the detection switch;

[0010] The feeding mechanism includes a lifting cylinder that is movably sleeved with the inner side wall of the fixed cylinder. The connection between the fixed cylinder and the lifting cylinder is airtight. An airtight pipe is provided inside the fixed cylinder, and a connecting pipe is provided inside the lifting cylinder. The airtight pipe and the connecting pipe are connected. A pneumatic component that cooperates with the airtight pipe is provided inside the fixed cylinder, and an air blowing component that cooperates with the connecting pipe is provided inside the lifting cylinder.

[0011] The molding method includes the following steps:

[0012] S1: The discharge cylinder rotates to supply material into the mold;

[0013] S2: When the filling inside the mold is half full, the flatness of the filling is checked by the detection roller;

[0014] S3: After the flatness test is completed, the second motor starts and the mesh is released automatically;

[0015] S4: Automatically blows the area where the mesh is loaded;

[0016] S5: Complete loading of the remaining materials;

[0017] S6: The material inside the mold is pressed and formed by a hydraulic press.

[0018] Preferably, the height of the gear ring is greater than the width of the first gear and the gear set between the first gear and the gear ring, and the connection is lubricated.

[0019] Preferably, the first and second lifting grooves are spiral designs with the same rotation direction and pitch length, while the rotating groove is designed in the horizontal direction.

[0020] Preferably, a piston cylinder is provided inside the fixed cylinder. The bottom of the piston cylinder is connected to the airtight pipe, and a piston rod is sleeved on the top of the piston cylinder. The shift fork is rotatably connected to the fixed cylinder. A limit groove is provided on the side of the shift fork away from the axis of the fixed cylinder. The top of the piston rod is designed in an L shape and the piston rod cooperates with the limit groove. The shift fork can be rotated to communicate with the rotation groove by the lifting and lowering of the piston rod. A spring for reset is also provided between the piston rods.

[0021] Preferably, the linkage ring connects each set of pallets in series, the inside of the rotating cylinder is provided with a toothed groove that is movably fitted with the top of the threaded sleeve, and the top of the threaded sleeve is provided with a gear that meshes with the toothed groove for transmission.

[0022] Preferably, hydraulic oil is filled between the transmission groove and the detection cylinder, and the difference between the cross-sectional area of ​​the sealing groove in the horizontal direction and the cross-sectional area of ​​the rotating rod in the horizontal direction is greater than the difference between the cross-sectional area of ​​the transmission groove in the horizontal direction and the cross-sectional area of ​​the rotating rod in the horizontal direction.

[0023] Preferably, the bottom of the rotating rod is designed as a prism, and the top of the detection cylinder is provided with a prism groove corresponding to the prism. While maintaining the movable connection, the detection cylinder rotates synchronously when the rotating rod rotates.

[0024] Preferably, the lifting cylinder has a compression chamber and a connecting chamber inside. The compression chamber is connected to the connecting pipe, and the compression chamber and the connecting chamber are connected. A piston block is sleeved inside the compression chamber, and a spring is provided between the piston block and the compression chamber. The connecting chamber has an inclined exhaust channel. A transmission block is rotatably connected to the bottom of the lifting cylinder. The transmission block is L-shaped and made of magnetic material. The bottom of the lifting cylinder is made of magnetic metal material and can attract each other with the transmission block. The side wall of the transmission block is provided with a protrusion to block the exhaust channel. The transmission block and the exhaust channel are clamped to the mesh by magnetic attraction.

[0025] A precision grinding diamond resin grinding wheel is manufactured using a precision grinding diamond resin grinding wheel forming method, wherein a mesh is provided at the center of the precision grinding diamond resin grinding wheel.

[0026] In summary, the beneficial effects of this invention are:

[0027] 1. This device employs volumetric metering and discharging to prevent clogging and material agglomeration, thus improving the quality of the filler. Furthermore, it utilizes a three-stage filling system, consisting of a first lifting trough, a second lifting trough, and a rotating trough working in conjunction with the ball bearing shaft. When half the fill is complete, the material surface is automatically leveled and its flatness is automatically detected by detection rollers. When the pressure areas detected by each set of detection rollers are consistent, the moving distances of the piston rings and conductive contacts become similar, until adjacent conductive contacts come into contact, forming a complete circuit. This allows for automatic mesh laying via the rotation of the rotating rod. Compared to traditional technologies, this device uses simultaneous material laying and leveling operations, and automatically detects flatness and lays the mesh when half the fill is complete, effectively reducing manual operation and processing steps, and improving production efficiency and product quality.

[0028] 2. After the mesh is laid, the transmission block rotates to release the blockage of the exhaust channel, allowing the mesh to automatically expel the accumulated gas through the exhaust channel. This achieves active gas replacement, replacing and reducing the humid air and low-molecular-weight volatiles trapped at the interface between the mesh and the powder. At the same time, the gentle downward airflow generates a distributed micro-compression force, which helps to adhere the mesh tightly to the leveled substrate material below, achieving better initial adhesion. This reduces the slight suspension or undulation of the mesh due to static electricity or its own rigidity during installation. It also reduces the local embedding or wrinkling caused by the subsequent free fall impact of the powder, thus reducing defects in the continuity and uniform stress distribution of the reinforcing layer and effectively improving the overall molding quality of the product. Attached Figure Description

[0029] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present invention and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort.

[0030] Figure 1 This is a schematic diagram of the fixed cylinder provided in an embodiment of the present invention.

[0031] Figure 2 This is a schematic diagram of the interior of the fixed cylinder provided in an embodiment of the present invention.

[0032] Figure 3 This is a schematic diagram of the interior of the rotating cylinder provided in an embodiment of the present invention.

[0033] Figure 4 This is the present invention. Figure 3 Enlarged diagram of point A.

[0034] Figure 5 This is a schematic diagram of the interior of the fixed cylinder provided in an embodiment of the present invention.

[0035] Figure 6 This is the present invention. Figure 5 Enlarged diagram of point B.

[0036] Figure 7 This is a schematic diagram of the shift fork transmission provided in an embodiment of the present invention.

[0037] Figure 8 This is a schematic diagram of the inside of the discharge cylinder provided in an embodiment of the present invention.

[0038] Figure 9 This is a schematic diagram of the inside of the threaded sleeve provided in an embodiment of the present invention.

[0039] Figure 10 This is a schematic diagram of the overall lifting cylinder provided in an embodiment of the present invention.

[0040] Figure 11 This is a schematic diagram of the interior of the lifting cylinder provided in an embodiment of the present invention.

[0041] Figure 12 This is a schematic diagram of the overall transmission block provided in an embodiment of the present invention.

[0042] Figure 13 This is a schematic diagram of the detection switch provided in an embodiment of the present invention.

[0043] Figure 14 This is a schematic diagram of the overall detection roller provided in an embodiment of the present invention.

[0044] Legend:

[0045] 100. Mold; 201. Mesh; 301. Cylinder; 302. First motor; 303. Gear 1; 400. Fixed cylinder; 401. First lifting groove; 402. Second lifting groove; 403. Rotating groove; 404. Airtight pipe; 405. Piston cylinder; 406. Piston rod; 407. Shift fork; 408. Limiting groove; 500. Lifting cylinder; 501. Connecting pipe; 502. Compression chamber; 503. Piston block; 504. Connecting chamber; 505. Exhaust passage; 506. Transmission block; 600. Rotating cylinder; 601. Second motor 602. Rotating rod; 603. Gear 2; 604. Gear 3; 605. Gear 4; 606. Ball bearing shaft; 607. Gear ring; 608. Gear groove; 609. Sealing groove; 610. Transmission groove; 611. Conductive contact piece; 612. Detection cylinder; 613. Detection roller; 614. Detection switch; 615. Piston ring; 616. Tactile switch; 700. Discharge cylinder; 701. Linkage ring; 702. Threaded sleeve; 703. Blade; 704. Storage chamber; 705. Discharge port; 706. Support plate; 707. Threaded tube. Detailed Implementation

[0046] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, 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, 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.

[0047] Reference Figure 1-14 This invention provides a method for forming a precision diamond resin grinding wheel. The equipment used in the forming method includes a mold 100 and a fixed cylinder 400, and also includes:

[0048] The driving mechanism includes a cylinder 301 positioned above the fixed cylinder 400 for controlling the lifting and lowering of the fixed cylinder 400; a first motor 302 positioned at the top of the fixed cylinder 400; a gear 303 connected to the output shaft of the first motor 302; a rotating cylinder 600 sleeved inside the fixed cylinder 400; a mesh 201 positioned inside the rotating cylinder 600; a gear ring 607 positioned on the inner wall of the rotating cylinder 600; a gear between the gear ring 607 and the gear 603 for meshing transmission; a first lifting groove 401, a rotating groove 403, and a second lifting groove 402 sequentially formed from bottom to top on the inner wall of the fixed cylinder 400; a fork 407 positioned between the second lifting groove 402 and the rotating groove 403; and a ball bearing 606 positioned on the side wall of the rotating cylinder 600. The rotating cylinder 600 is driven to rotate spirally or maintain horizontal rotation through the cooperation of the first lifting groove 401, the rotating groove 403, the second lifting groove 402, and the ball bearing 606.

[0049] The discharge mechanism includes a discharge cylinder 700 disposed inside a fixed cylinder 400. The discharge cylinder 700 has alternating storage chambers 704 and discharge ports 705. A support plate 706 is sleeved inside the storage chamber 704. A linkage ring 701 connected to the support plate 706 is disposed inside the fixed cylinder 400. A threaded sleeve 702 is connected to the top of the linkage ring 701. A threaded tube 707 is threadedly connected inside the threaded sleeve 702. The output shaft of the first motor 302 is connected to a blade 703 that mates with the top of the storage chamber 704.

[0050] The testing mechanism includes a sealing groove 609 at the bottom of a rotating cylinder 600. A testing cylinder 612 is vertically fitted inside the sealing groove 609. A spring is installed between the testing cylinder 612 and the sealing groove 609. A testing roller 613 is connected to the bottom of the testing cylinder 612. A rotating rod 602, which is rotatably connected to the testing cylinder 612, is rotatably connected inside the rotating cylinder 600. A transmission groove 610 communicating with the sealing groove 609 is opened inside the rotating cylinder 600. A piston ring 615 is fitted onto the side wall of the rotating rod 602. The piston ring 615 is located inside the transmission groove 610 and is movably sleeved with the transmission groove 610. The sealing groove 609 can transmit power to the piston ring 615 along the axis of the rotating rod 602 through internal pressure changes. A conductive contact 611 is movably sleeved on the side wall of the rotating rod 602 in the vertical direction. A support rod connects the conductive contact 611 and the piston ring 615. A detection switch 614 is installed inside the rotating cylinder 600. The two ends of the detection switch 614 are connected to the two ends of two adjacent sets of conductive contacts 611 through wires, respectively. A tactile switch 616 is installed at the bottom of the lifting cylinder 500 to cooperate with the detection roller 613. The tactile switch 616 is electrically connected to the detection switch 614. After the rotating cylinder 600 rises and drives the detection roller 613 to press and trigger the tactile switch 616, the detection switch 614 will be activated due to its electrical connection with the tactile switch 616, and the flatness detection will begin. Except for the two sets of conductive contacts 611 with the detection switch 614, which have a large gap and will not make contact, any other two sets of conductive contacts 611 will be close to each other. When the height positions coincide, the two adjacent sets of conductive contacts 611 can form a connected conductor. If the heights of each set of conductive contacts 611 are the same, the wires at both ends of the detection switch 614 form a circuit through the contact and connection of each set of conductive contacts 611. The electrical connection between the detection switch 614 and the second motor 601 triggers the switch of the second motor 601, controlling the second motor 601 to start rotating several times until each set of detection rollers 613 rotates and is stored at the bottom of the rotating cylinder 600, releasing the obstruction to the mesh 201.

[0051] The feeding mechanism includes a lifting cylinder 500 that is movably sleeved with the inner side wall of the fixed cylinder 400. The connection between the fixed cylinder 400 and the lifting cylinder 500 is airtight. An airtight pipe 404 is provided inside the fixed cylinder 400, and a connecting pipe 501 is provided inside the lifting cylinder 500. The airtight pipe 404 and the connecting pipe 501 are connected. A pneumatic component that cooperates with the airtight pipe 404 is provided inside the fixed cylinder 400, and an air blowing component that cooperates with the connecting pipe 501 is provided inside the lifting cylinder 500.

[0052] The molding method includes the following steps:

[0053] S1: The discharge cylinder rotates 700 degrees to supply material to the inside of the mold 100;

[0054] S2: When the filling inside mold 100 is halfway filled, the flatness of the filling is checked by the detection roller 613;

[0055] S3: After the flatness test is completed, the second motor 601 starts and automatically releases the mesh 201;

[0056] S4: Automatically blow away the area containing the mesh 201;

[0057] S5: Complete loading of the remaining materials;

[0058] S6: The material inside the mold 100 is pressed and formed by a hydraulic press.

[0059] It should be noted that the height of the gear ring 607 is greater than that of gear 303 and the width of the gear set between gear 303 and gear ring 607, and the connection is lubricated to reduce friction. Through the height difference, even if the rotating cylinder 600 and gear ring 607 move up and down in the vertical direction while gear 303 drives gear ring 607 to rotate, stable transmission can still be maintained.

[0060] Furthermore, the first lifting groove 401 and the second lifting groove 402 are spiral designs with the same rotation direction and pitch length, while the rotating groove 403 is designed in the horizontal direction.

[0061] Furthermore, a piston cylinder 405 is provided inside the fixed cylinder 400. The bottom of the piston cylinder 405 is connected to the airtight pipe 404, and a piston rod 406 is sleeved on the top of the piston cylinder 405. The shift fork 407 is rotatably connected to the fixed cylinder 400. A limiting groove 408 is provided on the side of the shift fork 407 away from the axis of the fixed cylinder 400. The top of the piston rod 406 is designed in an L shape, and the piston rod 406 cooperates with the limiting groove 408. The shift fork 407 can be rotated to communicate with the rotation groove 403 by the lifting and lowering of the piston rod 406. A spring for reset is also provided between the piston rod 406 and the piston rod 407.

[0062] It should be noted that the linkage ring 701 connects the various pallets 706 in series. The inside of the rotating cylinder 600 is provided with a toothed groove 608 that is movably fitted with the top of the threaded sleeve 702. The top of the threaded tube 707 is provided with a gear that meshes with the toothed groove 608 for transmission. When the rotating cylinder 600 rises, the threaded sleeve 702 and the linkage ring 701 can drive the pallets 706 to rise. When the pallets 706 rise, the material extending beyond the top edge of the storage cavity 704 can be scraped and sent to the discharge port 705 by the rotation of the blade 703 and discharged into the mold 100, realizing synchronous feeding with the vertical movement of the rotating cylinder 600. If the rotating cylinder 600 stops rising, the position of the pallets 706 will not continue to rise, so that the material will not overflow from the top of the storage cavity 704, thus stopping the feeding.

[0063] Specifically, hydraulic oil is filled between the transmission groove 610 and the detection cylinder 612. The difference between the horizontal cross-sectional area of ​​the sealing groove 609 and the horizontal cross-sectional area of ​​the rotating rod 602 is greater than the difference between the horizontal cross-sectional area of ​​the transmission groove 610 and the horizontal cross-sectional area of ​​the rotating rod 602. This causes the detection cylinder 612 to move a small distance vertically inside the sealing groove 609. Through the ratio of the cross-sectional area difference and hydraulic transmission, the piston ring 615 can be driven to move a greater distance inside the transmission groove 610 than the movement distance of the detection cylinder 612, thereby amplifying the detection results.

[0064] Furthermore, the bottom of the rotating rod 602 is designed as a prism, and the top of the detection cylinder 612 is provided with a prism groove corresponding to the prism. While maintaining the movable connection, the detection cylinder 612 rotates synchronously when the rotating rod 602 rotates.

[0065] Furthermore, the lifting cylinder 500 has a compression chamber 502 and a connecting chamber 504 inside. The compression chamber 502 is connected to the connecting pipe 501, and the compression chamber 502 and the connecting chamber 504 are connected. A piston block 503 is sleeved inside the compression chamber 502. A spring is provided between the piston block 503 and the compression chamber 502. The connecting chamber 504 has an inclined exhaust channel 505. A transmission block 506 is rotatably connected to the bottom of the lifting cylinder 500. The transmission block 506 is L-shaped and made of magnetic material. The bottom of the lifting cylinder 500 is made of magnetic metal material and can attract each other with the transmission block 506. The side wall of the transmission block 506 is provided with a protrusion to block the exhaust channel 505. The transmission block 506 and the exhaust channel 505 clamp the mesh 201 by magnetic attraction.

[0066] A precision grinding diamond resin grinding wheel is manufactured using a precision grinding diamond resin grinding wheel forming method, wherein a mesh 201 is provided at the center of the precision grinding diamond resin grinding wheel.

[0067] The workflow of this precision-grinding diamond resin grinding wheel and its molding method is as follows:

[0068] When machining a single grinding wheel, the process begins with material injection. The mold 100 is moved directly below the fixed cylinder 400, and then activated by cylinder 301. The output of cylinder 301 causes the fixed cylinder 400 to move downwards, bringing the bottom of the rotating cylinder 600 close to the inner bottom of the mold 100. Then, the first motor 302 is activated. The rotation of the first motor 302 drives the gear ring 607 to rotate via gear 303 and the transmission gear between gear 303 and gear ring 607, thereby causing the rotating cylinder 600 to rotate as a whole. In the initial state, the ball bearing 60... Position 6 is located at the lowest point of the first lifting groove 401. When the rotating cylinder 600 rotates, the ball bearing shaft 606, in conjunction with the first lifting groove 401, drives the rotating cylinder 600 to slowly rise along the first lifting groove 401 while rotating. During the rising process of the rotating cylinder 600, the toothed groove 608 engages with the threaded tube 707, simultaneously lifting the threaded tube 707 and the threaded sleeve 702. At the same time, the meshing transmission between the gear at the top of the threaded tube 707 and the toothed groove 608, combined with the threaded transmission between the threaded tube 707 and the threaded sleeve 702 during rotation, drives the threaded tube 707... The threaded sleeve 702 is further lifted. When the threaded sleeve 702 and the linkage ring 701 are lifted, they drive the support plate 706 to lift, raising the material inside the storage cavity 704 to above the edge of the storage cavity 704. When the drive shaft of the first motor 302 drives the blade 703 to rotate, the blade 703 gathers the lifted material and pushes it to the adjacent discharge port 705 for discharge into the mold 100, realizing automatic material discharge. The volumetric metering discharge method is adopted, which, compared with the traditional gravity discharge method, not only has higher accuracy and more uniform discharge, but also avoids clogging and material agglomeration, thus improving the molding process. The uniformity and quality of the pre-filling material are ensured. At the same time, during the material discharge process, the rotating cylinder 600 rotates, and the detection roller 613 at the bottom of the rotating cylinder 600 rotates synchronously to achieve automatic leveling of the filling area, ensuring the uniformity and flatness of the bottom filling. Compared with the traditional top-filling powder that relies on its own weight to accumulate, its loose density is low and fluctuates greatly, and there are a large number of pores and arching effects inside. During subsequent pressing, it has large shrinkage, difficult air degassing, and difficult density gradient control. Through synchronous leveling, in-situ pre-compaction and controllable loose density can be achieved, effectively improving the quality of grinding wheel forming injection processing.

[0069] Furthermore, as the rotating cylinder 600 gradually rises, when the material is injected to the middle position of the mold 100, the ball bearing 606 rises from the first lifting groove 401 into the rotating groove 403, where it continues to rotate horizontally. Simultaneously, the detection roller 613 rises to contact and press against the tactile switch 616 located directly above it, energizing the detection switch 614 and entering the detection mode. At this time, the rotating cylinder 600 reciprocates horizontally. Since the position of the rotating cylinder 600 no longer rises, material injection ceases. The detection roller 613 then performs a leveling operation and flatness test on the injection area. As the detection roller 613 passes through the material area, it detects the pressure between the material and the detection roller 613. The higher the material in the detection area, the greater the force exerted on the detection roller 613, and vice versa. The force exerted on the detection roller 613 by the material as it passes through the detection roller will cause the entire detection roller 613 to... The piston ring 615 moves vertically in sync with the detection cylinder 612. As the detection cylinder 612 moves, the pressure inside the sealing groove 609 changes, causing the piston ring 615 to move a greater distance vertically, thus amplifying the displacement detection results. When the piston ring 615 moves, it causes the conductive contact 611 to move vertically in sync. Except for the conductive contact 611 connected to both ends of the detection switch 614, the other adjacent conductive contact 611 of each group of detection rollers 613 are close to each other. When the pressure area of ​​the material surface detected by each group of detection rollers 613 is consistent, the distance moved by each group of detection rollers 613 also tends to be consistent, thus making the moving distance of each group of piston rings 615 and conductive contact 611 close, until the adjacent conductive contact 611 of each group are close to each other to form a complete circuit. Otherwise, the rotating cylinder 600 continues to rotate to flatten the material surface until the flatness of the area detected by each group of detection rollers 613 is consistent.

[0070] When the wires at both ends of the detection switch 614 are connected through the contact of each set of conductive contacts 611 to form a complete circuit, the detection switch 614 controls the second motor 601 to start via electrical connection. The output of the second motor 601 drives the second gear 603 to rotate, which in turn drives the third gear 604 to rotate. At the same time, through the meshing transmission of the third gear 604 and the fourth gear 605, the gears 604 and the rotating rod 602 rotate synchronously, causing the rotating rod 602 to rotate and drive the detection cylinder 612 and the detection roller 613 to rotate, until the detection roller 613 rotates to the bottom of the rotating cylinder 600 and can no longer move. Up to the position where the mesh 201 is blocked, since the bottom of the lifting cylinder 500 is almost flush with the bottom of the rotating cylinder 600, when the detection roller 613 rotates, it drives the transmission block 506 to rotate along the central axis as it passes the transmission block 506. Because the distance between one side and the lifting cylinder 500 increases and the magnetic force decreases, while the distance between the other side and the bottom of the lifting cylinder 500 decreases and the magnetic force increases, the transmission block 506 rotates 90°. This not only releases the mesh 201 from the clamping point, achieving automatic release of the mesh 201 from the flat material surface after detection, but also releases the clamping force through the rotation of the transmission block 506. By sealing the exhaust channel 505, the compressed gas inside the compression chamber 502 can be discharged from the exhaust channel 505 towards the mesh 201 through the reset of the piston block 503. Due to the porous structure of the mesh 201 and the microscopic gaps between it and the underlying matrix material, it traps ambient air, air entrained in the powder, and low-molecular-weight volatiles in the resin. During subsequent hot pressing, these gases expand due to heat. If they cannot be discharged in time through the exhaust channel, they will be encapsulated by the molten resin, forming interface bubbles or delamination defect sources. By blowing the surface of the mesh 201 before the powder is applied, the problem can be resolved. Active gas replacement is achieved, replacing and reducing the humid air and low-molecular-weight volatiles trapped at the interface between the mesh 201 and the powder. Moreover, a distributed micro-compression force can be generated through a gentle downward airflow, which helps to tightly adhere the mesh 201 to the underlying leveled substrate material, achieving better initial adhesion. This reduces the possibility that the newly laid mesh 201 may experience slight suspension or undulation due to static electricity or its own rigidity. If the powder material is directly impacted by free fall, it may cause the mesh 201 to be partially embedded or wrinkled, resulting in defects that disrupt its continuity as a reinforcing layer and uniform stress distribution.

[0071] As the airflow inside the compression chamber 502 is gradually discharged, the pressure inside the compression chamber 502 decreases. At the same time, the gas inside the piston cylinder 405 is also discharged into the compression chamber 502 through the airtight pipe 404 under the action of the spring force between the piston rod 406 and the piston cylinder 405 until it is discharged. This causes the piston rod 406 to move downward, driving the shift fork 407 to rotate downward. When the subsequent ball bearing shaft 606 passes by, it moves to the second lifting groove 402 through the side of the shift fork 407. Through the cooperation of the ball bearing shaft 606 and the second lifting groove 402, it continues to rotate and rise, thus completing the filling of the second half of the material. Since the construction of the bottom powder base and the automatic placement of the mesh 201 have been completed, the second half of the filler only needs to be evenly fed by the blade 703. Finally, the product can be obtained by hot pressing.

[0072] It should be noted that after the device completes filling and is reset as a whole, the second motor 601 first rotates in the reverse direction to restore the position of the detection roller 613. When the detection roller 613 passes the transmission block 506, it can rotate the transmission block 506 by 90° to restore the blockage of the exhaust channel 505. At the same time, new mesh 201 can be filled. During the reset process of the rotating cylinder 600, the U-shaped limiting structure on the inner wall of the rotating cylinder 600 drives the lifting cylinder 500 to move down through the limiting structure at the top. The gas between the fixed cylinder 400 and the lifting cylinder 500 is compressed into the piston cylinder 405 and the compression chamber 502 through the airtight pipe 404 and the connecting pipe 501, respectively. The gas is discharged when the exhaust channel 505 is unblocked in the next working cycle. During the operation, when the lifting cylinder 500 moves up, the gas can be drawn in through the one-way air inlet valve at the top of the lifting cylinder 500, which facilitates the discharge of the gas in the subsequent compression cycle.

[0073] The above description is merely a preferred embodiment of the present invention and is not intended to limit the invention. Various modifications and variations can be made to the invention by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the invention should be included within the scope of protection of the invention.

Claims

1. A method for forming a precision-ground diamond resin grinding wheel, characterized in that, The molding method uses equipment including a mold (100) and a fixed cylinder (400), and also includes: The driving mechanism includes a cylinder (301) disposed above the fixed cylinder (400) for controlling the lifting and lowering of the fixed cylinder (400). A first motor (302) is disposed on the top of the fixed cylinder (400). The output shaft of the first motor (302) is connected to a gear (303). A rotating cylinder (600) is sleeved inside the fixed cylinder (400). A mesh (201) is disposed on the inner side of the rotating cylinder (600). A gear ring (607) is disposed on the inner sidewall of the rotating cylinder (600). A gear is disposed between the gear ring (607) and the gear (603). Gears are used for meshing transmission. The inner sidewall of the fixed cylinder (400) is provided with a first lifting groove (401), a rotating groove (403), and a second lifting groove (402) from bottom to top. A fork (407) is designed between the second lifting groove (402) and the rotating groove (403). A ball bearing (606) is provided on the sidewall of the rotating cylinder (600). The rotating cylinder (600) is driven to rotate spirally or maintain horizontal rotation through the cooperation of the first lifting groove (401), the rotating groove (403), the second lifting groove (402) and the ball bearing (606). The discharge mechanism includes a discharge cylinder (700) disposed inside a fixed cylinder (400). The discharge cylinder (700) has alternating storage chambers (704) and discharge ports (705) inside. A support plate (706) is sleeved inside the storage chamber (704). A linkage ring (701) connected to the support plate (706) is disposed inside the fixed cylinder (400). A threaded sleeve (702) is connected to the top of the linkage ring (701). A threaded tube (707) is threadedly connected inside the threaded sleeve (702). The output shaft of the first motor (302) is connected to a blade (703) that cooperates with the top of the storage chamber (704). The testing mechanism includes a sealing groove (609) at the bottom of a rotating cylinder (600), a testing cylinder (612) sleeved vertically inside the sealing groove (609), a spring between the testing cylinder (612) and the sealing groove (609), a testing roller (613) connected to the bottom of the testing cylinder (612), a rotating rod (602) rotatably connected inside the rotating cylinder (600) and movably sleeved with the testing cylinder (612), and a transmission groove (610) communicating with the sealing groove (609) inside the rotating cylinder (600). A piston ring (615) is sleeved on the side wall of the rotating rod (602). The piston ring (615) is located inside the transmission groove (610) and is movably sleeved with the transmission groove (610). A conductive contact (611) is movably sleeved on the side wall of the rotating rod (602) in the vertical direction. A support rod is connected between the conductive contact (611) and the piston ring (615). A detection switch (614) is provided inside the rotating cylinder (600). The two ends of the detection switch (614) are connected to the two ends of two adjacent sets of conductive contacts (611) respectively through wires. The feeding mechanism includes a lifting cylinder (500) that is movably sleeved with the inner wall of the fixed cylinder (400). The bottom of the lifting cylinder (500) is provided with a tactile switch (616) that cooperates with the detection roller (613). The tactile switch (616) is electrically connected to the detection switch (614). The connection between the fixed cylinder (400) and the lifting cylinder (500) is airtight. An airtight pipe (404) is provided inside the fixed cylinder (400). A connecting pipe (501) is provided inside the lifting cylinder (500). The airtight pipe (404) and the connecting pipe (501) are connected. A pneumatic component that cooperates with the airtight pipe (404) is provided inside the fixed cylinder (400). An air blowing component that cooperates with the connecting pipe (501) is provided inside the lifting cylinder (500). The molding method includes the following steps: S1: The discharge cylinder (700) rotates to supply material to the inside of the mold (100); S2: When the filling inside the mold (100) is half full, the flatness of the filling is checked by the detection roller (613); S3: After the flatness test is completed, the second motor (601) starts and automatically releases the mesh (201). S4: Automatically blow away the area where the mesh (201) is loaded; S5: Complete loading of the remaining materials; S6: Pressurize and mold the material inside the mold (100) using a hydraulic press.

2. The method for forming a precision-ground diamond resin grinding wheel according to claim 1, characterized in that, The height of the gear ring (607) is greater than that of the gear one (303) and the width of the gear set between the gear one (303) and the gear ring (607), and the connection is lubricated.

3. The method for forming a precision-ground diamond resin grinding wheel according to claim 1, characterized in that, The first lifting groove (401) and the second lifting groove (402) are spiral designs with the same rotation direction and pitch length, while the rotating groove (403) is designed in the horizontal direction.

4. The method for forming a precision-ground diamond resin grinding wheel according to claim 1, characterized in that, The fixed cylinder (400) is equipped with a piston cylinder (405) inside. The bottom of the piston cylinder (405) is connected to the airtight pipe (404). The top of the piston cylinder (405) is fitted with a piston rod (406). The shift fork (407) is rotatably connected to the fixed cylinder (400). A limiting groove (408) is opened on the side of the shift fork (407) away from the axis of the fixed cylinder (400). The top of the piston rod (406) is L-shaped, and the piston rod (406) cooperates with the limiting groove (408). The shift fork (407) can be rotated to communicate with the rotating groove (403) by the lifting and lowering of the piston rod (406). A spring for resetting is also provided between the piston rod (406) and the piston rod (406).

5. The method for forming a precision-ground diamond resin grinding wheel according to claim 1, characterized in that, The linkage ring (701) connects each set of pallets (706) in series. The inside of the rotating cylinder (600) is provided with a toothed groove (608) that is movably fitted to the top of the threaded sleeve (702). The top of the threaded tube (707) is provided with a gear that meshes with the toothed groove (608) for transmission.

6. The method for forming a precision-ground diamond resin grinding wheel according to claim 1, characterized in that, Hydraulic oil is filled between the transmission groove (610) and the detection cylinder (612). The difference between the cross-sectional area of ​​the sealing groove (609) in the horizontal direction and the cross-sectional area of ​​the rotating rod (602) in the horizontal direction is greater than the difference between the cross-sectional area of ​​the transmission groove (610) in the horizontal direction and the cross-sectional area of ​​the rotating rod (602) in the horizontal direction.

7. The method for forming a precision-ground diamond resin grinding wheel according to claim 1, characterized in that, The bottom of the rotating rod (602) is prismatic, and the top of the detection cylinder (612) is provided with a prismatic groove corresponding to the prism. While maintaining the movable connection, the detection cylinder (612) rotates synchronously when the rotating rod (602) rotates.

8. The method for forming a precision-ground diamond resin grinding wheel according to claim 1, characterized in that, The lifting cylinder (500) has a compression chamber (502) and a connecting chamber (504) inside. The compression chamber (502) is connected to the connecting pipe (501), and the compression chamber (502) and the connecting chamber (504) are connected. A piston block (503) is sleeved inside the compression chamber (502). A spring is provided between the piston block (503) and the compression chamber (502). The connecting chamber (504) has an inclined exhaust channel (505). The lifting cylinder (500) has a compression chamber (502) and a connecting chamber (504) with a connecting pipe (501). The bottom of the lifting cylinder (500) is rotatably connected to a transmission block (506). The transmission block (506) is L-shaped and made of magnetic material. The bottom of the lifting cylinder (500) is made of magnetic metal material and can attract each other with the transmission block (506). The side wall of the transmission block (506) is provided with a protrusion to block the exhaust channel (505). The transmission block (506) and the exhaust channel (505) clamp the mesh (201) by magnetic attraction.

9. A precision-grinding diamond resin grinding wheel manufactured based on the precision-grinding diamond resin grinding wheel forming method according to claim 1, characterized in that, A mesh (201) is provided at the center of the precision diamond resin grinding wheel.

Images