Grinding tool with a shape preserving function

Abstract

The present application relates to a kind of grinding tools with shape-preserving function, including base, the lower end of base is fixedly sleeved with working ring, and working ring is used to process the transition surface of boss surface set on workpiece;The working site of working ring is curve structure, and its shape is same with the shape of boss surface transition surface;The inside of base is provided with water storage area, and the lower end of base is evenly spaced along its circumferential direction and is provided with multiple water communication grooves with water storage area and inside and outside through-penetrating, and the circumferential arc length size of each water communication groove gradually increases from inside to outside.The present application is according to the shape of workpiece transition surface and machining allowance, uses the mechanism of abrasion ratio, sets the functional structure that the radial direction abrasion ratio of each point of diamond ring working site profile of grinding tool axial is equal, achieves the effect of shape-preserving;Its beneficial effect is simple structure, reasonable design, greatly prolongs the shape-preserving life of grinding tool, reduces the frequency of dressing or replacing grinding tool, simplifies processing technology, improves processing efficiency, reduces processing cost.

Description

Technical Field

[0001] This invention relates to the field of abrasive technology, and more specifically to an abrasive with conformal function. Background Technology

[0002] When machining a raised surface on a flat base surface of a workpiece, such as a mobile phone glass back panel, and requiring a curved surface to transition between the raised surface and the flat base surface, electroplated forming abrasives are typically chosen for precision forming. This is because electroplated abrasives are single-layer abrasives and are considered low-consumption, "non-deformable" abrasives. However, precisely because they are single-layer abrasives, their lifespan is very short, requiring frequent replacements during processing. Other bonded impregnated consumable forming abrasives only meet the processing requirements at the factory and can only be used for a short time within the shape tolerance range. Due to differences in processing volume and conditions (such as cooling) in various parts during use, or structural issues, the shape of these abrasives easily loses its original shape, resulting in workpieces that do not meet requirements. The effective lifespan of these abrasives is very short, requiring frequent reshaping and repair before reuse. Current forming abrasives, due to low cooling efficiency and poor chip removal, are difficult to use with advanced high-speed (linear speed higher than 45 m / min) grinding technology. Repairing them is cumbersome, using them is troublesome, processing efficiency is low, and operating costs are high. Summary of the Invention

[0003] The technical problem to be solved by the present invention is to provide a mold with a conformal function, which aims to solve the problems in the prior art.

[0004] The technical solution of the present invention to solve the above-mentioned technical problems is as follows:

[0005] A conformal abrasive tool includes a base, with a working ring fixedly sleeved at the lower end of the base. The working ring is used to process the transition surface of a boss on a workpiece. The working part of the working ring has a curved structure, the shape of which is the same as the shape of the transition surface of the boss, and the parameters of the working ring and the parameters of the transition surface of the workpiece satisfy the following relationship:

[0006] B≤B1≤(B+X) (1);

[0007] 0<B2≤X (2);

[0008] In equations (1) and (2), B is the total width of the arc surface of the boss and the tolerance is ±X, B1 is the maximum ring width of the working ring, and B2 is the end face ring width of the working ring.

[0009] The substrate has a water storage area inside, and the lower end of the substrate has multiple water channels evenly spaced along its circumference, which communicate with and penetrate the water storage area. The circumferential arc length of each water channel gradually increases from the inside to the outside. The parameters of the boss surface, the water channels, and the working ring satisfy the following relationship:

[0010] L1:l1=L:l (3);

[0011] Among them: L1=π*φ-n*b; l1=π*φ-n*b1;

[0012] In formula (3), L is the circumference of the top of the outer peripheral surface of the boss, l is the circumference of the line where the bottom of the boss intersects with the workpiece plane base surface; L1 is the cumulative length of the arc length of each segment of the outer diameter of the working ring, l1 is the cumulative length of the arc length of each segment of the inner diameter of the working ring; Φ is the outer diameter of the working ring, φ is the inner diameter of the working ring; n is the number of water channels, b is the circumferential width of the outer diameter opening of each water channel, b1 is the circumferential width of the inner diameter inlet of each water channel; π is pi.

[0013] The beneficial effects of this invention are as follows: During processing, after rough machining, under the condition that the radial machining allowance at each point of the transition surface is equal and the axial machining allowance is minimal, the workpiece is horizontally fixed, and the base body with a working ring is vertically positioned above the workpiece. The end face of the working ring is in close contact with the flat base surface of the workpiece, and the rotating working part of the working ring performs finishing machining on the outer peripheral surface of the boss surface, i.e., the transition surface. This invention performs one-time micro-machining in the axial direction, and the radial direction can be machined in one or more passes depending on the machining allowance. This invention can limit the maximum change in radius (R) of the grinding wheel during use, while reducing the wear rate of the grinding wheel in the axial direction and extending its service life. Furthermore, it ensures a smooth transition between the transition surface of the boss surface and the flat base surface of the workpiece, and the diameter wear at each point of the axial direction of the used part of the grinding wheel tends to be the same, achieving a conformal function. This invention has a simple structure and reasonable design, greatly extending the conformal life of the grinding wheel, reducing the frequency of shaping or replacing the grinding wheel, simplifying the processing technology, improving processing efficiency, and reducing processing costs.

[0014] Based on the above technical solution, the present invention can be further improved as follows.

[0015] Furthermore, the substrate includes an inner substrate and an outer substrate. The outer substrate has a ring-shaped structure. The working ring is fixedly sleeved on the lower end of the outer substrate, and a plurality of water channels are evenly spaced along the circumference of the outer substrate at the lower end of the outer substrate and located within the working ring. The inner substrate is fixedly installed inside the outer substrate, and its lower end, the upper end of the outer substrate, and its inner wall form the water storage area. A water passage for cooling water is provided between its lower end and the inner wall of the outer substrate. The upper end of the inner substrate extends through the upper end of the outer substrate and out of the outer substrate for connecting a drive component that drives its rotation.

[0016] The advantages of adopting the above scheme are that during processing, the driving component drives the outer substrate and the working ring to rotate through the inner substrate to process the transition surface on the workpiece; in addition, the dense arrangement of multiple water channels brings a good cooling effect, which greatly reduces the adverse effects of grinding heat on the wear of the grinding wheel; at the same time, the water channels can quickly remove chips in a circumferential manner, which greatly reduces the wear of the grinding wheel binder by the powder and extends the service life of the grinding wheel.

[0017] Furthermore, each of the multiple water channels is divided into two groups of water channels. The two groups of water channels are distributed along the axial direction of the outer substrate at the lower end of the outer substrate, and the multiple water channels in the two groups of water channels are alternately distributed along the circumference of the outer substrate.

[0018] The advantages of adopting the above scheme are that the structure is simple and the design is reasonable. The axial arrangement of the water channel can be staggered in multiple layers or in an axial spiral layout, which helps to ensure the strength of the mold.

[0019] Furthermore, multiple blades are fixedly installed at uniform intervals along the circumference of the outer substrate between the lower end of the inner substrate and the outer substrate.

[0020] The beneficial effects of adopting the above scheme are that during processing, the driving component drives the outer substrate to rotate through the inner substrate, thereby realizing the rotation of the entire mold. Cooling water is discharged from the water passage and multiple dense water grooves under the action of the blades, thus achieving cooling. The blades not only connect and solidify the inner and outer substrates, but also help to push the cooling water towards the end face of the working ring, increasing the flow rate of the cooling water and improving the cooling effect.

[0021] Furthermore, a water baffle is fixedly installed at the lower end of the inner substrate. The water baffle is arranged perpendicular to the axial direction of the outer substrate and is located on the side of the blade near the lower end of the outer substrate. The water passage is formed between the edge of the water baffle and the inner wall of the outer substrate.

[0022] The beneficial effect of adopting the above scheme is that during processing, when the driving component drives the grinding wheel to rotate through the inner base, the atomized water formed by the cooling water under the action of the blades gathers under the action of the baffle plate to form a water flow. Under the action of centrifugal force, the water flows through the water channel and water groove formed between the baffle plate and the inner wall of the working ring, and acts on the grinding zone to form an internal cooling mode, which improves the cooling effect and greatly reduces the adverse effects of grinding heat on grinding wheel wear.

[0023] Furthermore, the water baffle is a circular plate, and it is coaxially distributed with the outer substrate.

[0024] The advantages of adopting the above scheme are that it has a simple structure, reasonable design, and ensures that cooling water flows out evenly from multiple water channels, which greatly improves the utilization rate of cooling water and the cooling effect.

[0025] Furthermore, the inner diameter of the lower end of the outer substrate is larger than the inner diameter of its upper end.

[0026] The advantages of adopting the above scheme are that the structure is simple and the design is reasonable. The inner wall of the water inlet of the water storage area is funnel-shaped, and the water passage is also funnel-shaped. This design helps to push the cooling water axially towards the working ring under the action of centrifugal force, thereby increasing the water flow and improving the cooling effect.

[0027] Furthermore, the inner matrix has a structure that is thicker at the bottom and thinner at the top, and the side of its thick end closest to the outer matrix has a sloping structure.

[0028] The advantages of adopting the above scheme are that it has a simple structure and reasonable design, which allows the cooling water to be concentrated from the water passage and multiple dense water grooves to the grinding area, forming an internal cooling mode, which greatly improves the utilization rate and cooling effect of the cooling water.

[0029] Furthermore, the working ring is a diamond ring.

[0030] The advantages of adopting the above solution are that the materials are reasonably selected, the diamond has high hardness, wear resistance, long service life, and cost savings. Attached Figure Description

[0031] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0032] Figure 2 This is a bottom view of the present invention;

[0033] Figure 3 for Figure 2 A sectional view along the EE direction;

[0034] Figure 4 for Figure 3 Enlarged view of H in the middle;

[0035] Figure 5This is a partial structural schematic diagram of the present invention;

[0036] Figure 6 This is a schematic diagram showing the distribution of the water channels in this invention;

[0037] Figure 7 This is a schematic diagram of the structure of the product processed by the present invention;

[0038] Figure 8 for Figure 7 Sectional view along the FF direction;

[0039] Figure 9 for Figure 8 Enlarged view of G in the middle;

[0040] Figure 10 This is a schematic diagram of the structure of the product boss being machined using a mold in the first embodiment of the present invention;

[0041] Figure 11 This is a schematic diagram of the structure of the product boss being machined using a grinding tool in the second embodiment of the present invention.

[0042] The attached diagram lists the components represented by each number as follows:

[0043] 1. Matrix; 2. Workpiece; 3. Boss surface; 4. Working ring; 5. Water storage area; 6. Water passage; 7. Water trough; 8. Water baffle; 9. Blade. Detailed Implementation

[0044] The principles and features of the present invention are described below with reference to the accompanying drawings and specific embodiments. The examples given are only for explaining the present invention and are not intended to limit the scope of the present invention.

[0045] Example 1

[0046] like Figures 1 to 11 As shown, this embodiment provides a mold with conformal function, including a base 1, which has a cup-shaped structure, i.e., the entire mold is a cup-shaped mold; a working ring 4 is fixedly sleeved on the lower end of the base 1, and the working ring 4 is used to process the transition surface of the boss surface 3 provided on the workpiece 2. The transition surface has shape accuracy requirements, and the outer contour shape of the working part of the working ring 4 is the required shape of the transition surface of the boss surface 3; the working part of the working ring 4 has a curved structure, and its shape is the same as the shape of the transition surface of the boss surface 3, and the various parameters of the working ring 4 and the various parameters of the transition surface of the workpiece 2 satisfy the following relationship:

[0047] B≤B1≤(B+X) (1);

[0048] In equation (1), the maximum ring width B1 of the working ring 4 is required to be within the range of the total width B of the transition surface plus the positive tolerance.

[0049] When the ring width B1 of the working ring 4 is B, the maximum amount of change of R during the use of the grinding wheel can be limited.

[0050] When the ring width B1 of the working ring 4 is (B+X), the wear rate in the axial direction of the grinding wheel can be reduced, and the service life of the grinding wheel can be improved.

[0051] When the ring width of the working ring 4 is less than (B+X), the diamond holding agent on the end face of the working ring 4 is less and is more likely to fall off under the action of grinding force. Therefore, B1=(B+X) can reduce the wear rate of the grinding wheel in the axial direction.

[0052] 0<B2≤X (2);

[0053] In equations (1) and (2), R is the radius of the arc connecting the boss surface 3 and the workpiece 2 plane base surface, B is the total width of the arc surface of the boss surface 3 with a tolerance of ±X; B1 is the maximum ring width of the working ring 4, and B2 is the end face ring width of the working ring 4.

[0054] Only when the end face width of the working ring 4 meets the conditions in the above formula (2) can the transition surface and the plane base surface of the workpiece 2 be orthogonally and smoothly transitioned.

[0055] The base 1 has a water storage area 5 inside. The lower end of the base 1 has multiple water channels 7 that are evenly spaced along its circumference and communicate with the water storage area 5 and penetrate through it. The circumferential arc length of each water channel 7 gradually increases from the inside to the outside. The parameters between the boss surface 3, the water channels 7 and the working ring 4 satisfy the following relationship:

[0056] L1:l1=L:l (3);

[0057] Among them: L1=π*φ-n*b; l1=π*φ-n*b1;

[0058] By satisfying the above proportional relationship, which conforms to the wear ratio mechanism, the diameter consumption of each point along the axis of the grinding wheel tends to be the same, thus achieving the conformal function.

[0059] In formula (3), L is the circumference of the top of the outer circumference of the boss surface 3, l is the circumference of the line where the bottom of the boss surface 3 intersects with the base plane of the workpiece 2; L1 is the cumulative length of the arc length of each segment of the outer diameter of the working ring 4, l1 is the cumulative length of the arc length of each segment of the inner diameter of the working ring 4; Φ is the outer diameter of the working ring 4, φ is the inner diameter of the working ring 4; n is the number of water channels 7, b is the circumferential width of the outer diameter opening of each water channel 7, b1 is the circumferential width of the inner diameter inlet of each water channel 7; π is the ratio of π to π.

[0060] During machining, after rough machining, under the condition that the radial machining allowances at each point of the transition surface of the boss surface 3 are equal and the axial machining allowance is minimal, the workpiece 2 is placed horizontally and fixedly, and the base 1 with the working ring 4 is vertically set above the workpiece 2. The end face of the working ring 4 is in close contact with the plane base surface of the workpiece 2, and the working part of the rotating working ring 4 performs fine machining on the outer peripheral surface of the boss surface 3, i.e., the transition surface.

[0061] In the above scheme, the circumferential arc length of each water channel 7 gradually increases from the inside to the outside, so that the structure conforms to the wear ratio mechanism. The structure is simple and the design is reasonable. It ensures that the cooling water acts on the grinding zone through the water channel 7 during the rotation of the working ring 4, so as to achieve the good effect of the internal cooling mode and greatly reduce the adverse effects of grinding heat on the wear of the grinding wheel.

[0062] In this embodiment, the axial direction is processed in a single micro-machining operation, while the radial direction can be processed in one or more cycles depending on the machining allowance.

[0063] This embodiment can limit the maximum change of R during the use of the grinding wheel, and at the same time reduce the wear rate of the grinding wheel in the axial direction, thus extending the service life of the grinding wheel; in addition, it can ensure that the transition surface of the boss surface 3 and the planar base surface of the workpiece 2 are smoothly transitioned, and the diameter wear of each point in the axial direction of the used part of the grinding wheel tends to be the same, thus achieving the shape preservation function.

[0064] This embodiment has a simple structure and reasonable design, which greatly extends the mold's shape retention life, reduces the frequency of shape modification or mold replacement, simplifies the processing technology, improves processing efficiency, and reduces processing costs.

[0065] Since the end face of the working ring 4 is the most easily worn part, the cutting depth of the working ring 4 can be supplemented by tool compensation technology during use to ensure that the axial machining amount of the working ring 4 meets the shape requirements of the transition surface.

[0066] In addition, based on the transition surface shape and machining allowance of the boss surface 3 on the workpiece 2, this embodiment utilizes the wear ratio mechanism to set up a functional structure in which the radial wear ratio of each point on the working part contour of the grinding wheel working ring 4 is equal, thereby achieving the function of shape preservation.

[0067] Example 2

[0068] Based on Embodiment 1, in this embodiment, the substrate 1 includes an integrally formed inner substrate 101 and an outer substrate 102. The outer substrate 102 has a ring-shaped structure. The working ring 4 is fixedly sleeved on the lower end of the outer substrate 102, and multiple water channels 7 are evenly distributed at intervals along the circumference of the outer substrate 102 at the lower end of the outer substrate 102 and located inside the working ring 4. The inner substrate 101 is fixedly installed inside the outer substrate 102. Its lower end and the upper end and inner wall of the outer substrate 102 form a water storage area 5, and a water channel 6 for cooling water to pass through is left between its lower end and the inner wall of the outer substrate 102. The upper end of the inner substrate 101 extends through the upper end of the outer substrate 102 to the outside of the outer substrate 102 for connecting the driving component that drives its rotation.

[0069] During processing, the driving component drives the outer base 102, which in turn rotates the working ring 4, via the inner base 101 to process the transition surface of the boss surface 3 on the workpiece 2. In addition, the dense arrangement of multiple water channels 7 provides a good cooling effect, which greatly reduces the adverse effects of grinding heat on the wear of the grinding wheel. At the same time, the water channels 7 can quickly remove chips in a circumferential manner, which greatly reduces the wear of the grinding wheel binder by the powder and extends the service life of the grinding wheel.

[0070] Preferably, in this embodiment, the water storage area 5 is connected to the upper end of the outer substrate 102, i.e., the water inlet. The inner wall of the water storage area 5 is funnel-shaped at an angle of γ, and the inner wall of the water flow channel overlapping with the water storage area 5 (i.e., the area between the inner wall of the outer substrate 102 and the lower end of the inner substrate 101) is funnel-shaped at an angle of θ. The inner wall of the water inlet of the water storage area 5 is funnel-shaped, and the water flow channel is also funnel-shaped. This design is reasonable. Under the action of centrifugal force, it helps to push the cooling water axially towards the working ring 4, increasing the water flow rate and improving the cooling effect.

[0071] Example 3

[0072] Based on Example 2, in this example, the multiple water channels 7 are divided into two groups of water channels. The two groups of water channels are distributed along the axial direction of the outer base 102 at the lower end of the outer base 102, and the multiple water channels 7 in the two groups of water channels are alternately distributed along the circumference of the outer base 102.

[0073] The scheme has a simple structure and reasonable design. The axial arrangement of the water tank 7 can be a staggered multi-layer arrangement or an axial spiral layout, which helps to ensure the strength of the mold.

[0074] The water channel 7 can be processed by pre-setting molds, laser, EDM, etc.

[0075] In addition to the above embodiments, a plurality of densely packed water channels 7 can also be evenly distributed at intervals along the circumference of the base 1 at the lower end of the outer base 102, and the length of each water channel 7 is greater than that of each water channel 7 in the above embodiments. In comparison, this embodiment reduces the strength of the grinding wheel and affects the service life of the grinding wheel.

[0076] Example 4

[0077] Based on any one of Embodiments 2 to 3, in this embodiment, multiple blades 9 are fixedly installed at uniform intervals along the circumference of the outer substrate 102 between the lower end of the inner substrate 101 and the outer substrate 102, and the two ends of each blade 9 are fixedly connected to the inner wall of the outer substrate 102 and the lower end of the inner substrate 101, respectively.

[0078] During processing, the driving component drives the outer substrate 102 to rotate through the inner substrate 102, thereby realizing the rotation of the entire grinding wheel. Cooling water is discharged from the water passage 6 and multiple dense water grooves 7 under the action of the blades 9, thus achieving cooling. The blades 9 not only connect and solidify the inner substrate 101 and the outer substrate 102, but also help to push the cooling water to flow towards the end face of the working ring 4, increasing the flow rate of the cooling water and improving the cooling effect.

[0079] It should be noted that the appendix Figure 3 The arrows in the image merely indicate the direction of cooling water flow and have no other substantial meaning.

[0080] Example 5

[0081] Based on Example 4, in this example, a baffle plate 8 is fixedly installed at the lower end of the inner substrate 101. The baffle plate 8 is arranged perpendicular to the axial direction of the outer substrate 102 and is located on the side of the blade 9 near the lower end of the outer substrate 102. The baffle plate 8 is fixedly installed on the end face of the lower end of the inner substrate 101, and a gap is provided between its edge and the inner wall of the outer substrate 102, which is a water passage 6. A water passage 6 is formed between the edge of the baffle plate 8 and the inner wall of the outer substrate 102.

[0082] During processing, when the drive unit drives the grinding wheel to rotate through the inner base 101, the atomized water formed by the cooling water under the action of the blades 9 is gathered under the action of the baffle plate 8 to form a water flow. Under the action of centrifugal force, the water flows through the water channel 6 and water groove 7 formed between the baffle plate 8 and the inner wall of the working ring 4 to act on the grinding zone, forming an internal cooling mode, which improves the cooling effect and greatly reduces the adverse effects of grinding heat on the wear of the grinding wheel.

[0083] Example 6

[0084] Based on Example 5, in this example, the baffle plate 8 is a circular plate and is coaxially distributed with the outer base 102. The structure is simple and the design is reasonable, which ensures that the cooling water flows out evenly from multiple water channels 7, greatly improving the utilization rate of cooling water and the cooling effect.

[0085] Example 7

[0086] Based on any one of Embodiments 2 to 6, in this embodiment, the inner diameter of the lower end of the outer substrate 102 is larger than the inner diameter of its upper end, that is, the inner wall of the outer substrate 102 is funnel-shaped. This scheme has a simple structure and reasonable design. The inner wall of the water inlet of the water storage area 5 is funnel-shaped, and the water passage 6 is also funnel-shaped. This design helps to push the cooling water axially towards the working ring 4 under the action of centrifugal force, thereby increasing the water flow rate and improving the cooling effect.

[0087] Example 8

[0088] Based on any one of Embodiments 2 to 7, in this embodiment, the inner substrate 101 has a structure that is thick at one end and thin at the top, and the side of its thick end near the outer substrate 102 has a sloping structure. This scheme has a simple structure and reasonable design, which allows the cooling water to be concentrated and discharged from the water passage 6 and the densely packed multiple water grooves 7 to the grinding area, forming an internal cooling mode, which greatly improves the utilization rate of cooling water and the cooling effect.

[0089] Example 9

[0090] Based on the above embodiments, in this embodiment, the working ring 4 is a diamond ring, which is a reasonable material selection. Diamond has high hardness, wear resistance, long service life, and saves costs.

[0091] The working process of this invention is as follows:

[0092] During machining, workpiece 2 is placed horizontally and fixedly, while base 1 and its associated working ring 4 are vertically positioned above workpiece 2. The end face of working ring 4 acts on the planar base surface of workpiece 2, and the working part of its outer circumference acts on the transition surface of boss surface 3. The driving component drives the entire base 1 to rotate around boss surface 3 via inner base 101, and it can also rotate around its own axis to machine the transition surface. The axial direction is machined in a single micro-machining operation, while the radial direction can be machined in one or more passes depending on the machining allowance.

[0093] During this process, multiple blades 9 rotate with the inner base 101, and the cooling water is atomized under the action of the blades 9. At the same time, the atomized water is gathered under the action of the baffle plate 8 and discharged from the water passage 6 and multiple dense water channels 7, thereby improving the cooling effect.

[0094] The abrasive tool of this invention is only suitable for finishing when the radial machining allowance at each point along the axial direction of the transition surface is equal.

[0095] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A mold with conformal function, characterized in that: The system includes a base (1), and a working ring (4) is fixedly sleeved on the lower end of the base (1). The working ring (4) is used to process the transition surface of the boss surface (3) provided on the workpiece (2). The working part of the working ring (4) has a curved structure, and its shape is the same as that of the transition surface of the boss surface (3). The parameters of the working ring (4) and the parameters of the transition surface of the workpiece (2) satisfy the following relationship: B≤B 1 ≤(B+X) (1); 0 < B 2 ≤ X (2); In equations (1) and (2), B is the total width of the arc surface of the boss surface (3) with a tolerance of ±X, B1 is the maximum ring width of the working ring (4), and B2 is the end face ring width of the working ring (4). The base (1) has a water storage area (5) inside. The lower end of the base (1) is provided with a plurality of water channels (7) that are evenly spaced along its circumference and communicate with the water storage area (5) and penetrate through it. The circumferential arc length of each water channel (7) gradually increases from the inside to the outside. The parameters of the boss surface (3), the water channel (7) and the working ring (4) satisfy the following relationship: L 1 :l 1 =L:l (3); Among them: L 1 =π*φ-n*b; l 1 =π*φ-n*b 1; This makes the diameter consumption at all axial points of the mold's working part tend to be the same; In formula (3), L is the circumference of the top of the outer peripheral surface of the boss surface (3), l is the circumference of the line where the bottom of the boss surface (3) intersects with the plane base of the workpiece (2); L1 is the cumulative length of the arc length of each segment of the outer diameter of the working ring (4), l1 is the cumulative length of the arc length of each segment of the inner diameter of the working ring (4); Φ is the outer diameter of the working ring (4), φ is the inner diameter of the working ring (4); n is the number of water channels (7), b is the circumferential width of the outer diameter opening of each water channel (7), b1 is the circumferential width of the inner diameter inlet of each water channel (7); π is pi.

2. The abrasive tool with conformal function according to claim 1, characterized in that: The substrate (1) includes an inner substrate (101) and an outer substrate (102). The outer substrate (102) has a ring-shaped structure. The working ring (4) is fixedly sleeved on the lower end of the outer substrate (102). A plurality of water channels (7) are evenly spaced along the circumference of the outer substrate (102) at the lower end of the outer substrate (102) and located inside the working ring (4). The inner substrate (101) is fixedly installed inside the outer substrate (102). Its lower end and the upper end and the inner wall of the outer substrate (102) form the water storage area (5). A water channel (6) for cooling water to pass through is left between its lower end and the inner wall of the outer substrate (102). The upper end of the inner substrate (101) extends through the upper end of the outer substrate (102) to the outside of the outer substrate (102) for connecting the driving component that drives its rotation.

3. The abrasive tool with conformal function according to claim 2, characterized in that: The multiple water channels (7) are divided into two groups of water channels. The two groups of water channels are distributed along the axial direction of the outer base (102) at the lower end of the outer base (102), and the multiple water channels (7) in the two groups of water channels are alternately distributed along the circumference of the outer base (102).

4. The abrasive tool with conformal function according to claim 2, characterized in that: Multiple blades (9) are fixedly installed at uniform intervals along the circumference of the outer substrate (102) between the lower end of the inner substrate (101) and the outer substrate (102).

5. The abrasive tool with conformal function according to claim 4, characterized in that: A baffle plate (8) is fixedly installed at the lower end of the inner substrate (101). The baffle plate (8) is arranged perpendicular to the axial direction of the outer substrate (102) and is located on the side of the blade (9) near the lower end of the outer substrate (102). The water passage (6) is formed between the edge of the baffle plate (8) and the inner wall of the outer substrate (102).

6. The abrasive tool with conformal function according to claim 5, characterized in that: The water baffle (8) is a circular plate and is coaxially distributed with the outer substrate (102).

7. The abrasive tool with conformal function according to any one of claims 2-6, characterized in that: The inner diameter of the lower end of the outer matrix (102) is larger than the inner diameter of its upper end.

8. The abrasive tool with conformal function according to any one of claims 2-6, characterized in that: The inner matrix (101) has a structure that is thick at the bottom and thin at the top, and the side of its thick end near the outer matrix (102) has a sloping structure.

9. The abrasive tool with conformal function according to any one of claims 1-6, characterized in that: The working ring (4) is a diamond ring.

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