High-precision double-blade diamond roller and manufacturing method thereof

Abstract

The application belongs to the technical field of diamond roller, and discloses a high-precision double-blade diamond roller, which comprises a base ring, the outer surface of the base ring is fixedly sleeved with a diamond grinding ring, the inner surface of the base ring is provided with an inner ring cavity, and the outer surface of the base ring is provided with a through hole penetrating through it. By utilizing the ring groove and the communication cavity in the sleeve shaft, the first communication sleeve hole and the second communication sleeve hole in the sleeve shaft, and the movable ring movably sleeved in the ring groove, the cutting fluid is stably input into the sleeve shaft and guided into the inner ring cavity of the base ring by rotating the movable ring, the input cutting fluid is fully input into the through hole and directly contacts the injection part of the diamond grinding ring in the inner ring cavity of the base ring, so that the heat absorption effect is greatly improved, the cutting fluid is sprayed out to perform liquid cooling from the inner side and the outer side of the diamond grinding ring, and the input cutting fluid reduces the oxidation corrosion and maintains the high-efficiency and stable cooling.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of diamond rollers, and specifically relates to a high-precision double-blade diamond roller and a manufacturing method thereof. BACKGROUND

[0002] The high-precision double-blade diamond roller is a grinding tool for machining high-hardness materials, which has the characteristics of high hardness, high thermal conductivity and low coefficient, etc. The double-blade design of the roller can make it more efficiently remove the material on the surface of the workpiece, and has a long service life and stable machining performance. In addition, the high-precision manufacturing technology can also ensure its precision and repeatability. The high-precision double-blade diamond roller is mainly applied to machining high-hardness materials such as hard alloy, ceramic, glass, etc. It is suitable for high-precision, high-efficiency plane grinding, cylindrical grinding, internal grinding, filing and polishing fields.

[0003] In the prior art, the high-precision double-blade diamond roller usually utilizes its own rotation to rotate and grind the workpiece to be machined during use. However, the speed is fast and the mutual contact is strong during the actual grinding process. If the grinding speed is too fast or too loose during use, a large amount of heat will be generated by friction and it is difficult to dissipate, resulting in temperature rise. During continuous grinding work, the heat on the surface of the diamond roller increases obviously. Regular shutdown is usually adopted to reduce the temperature. The actual continuous working efficiency is reduced, and the cooling method has poor effect. SUMMARY

[0004] The application aims to provide a high-precision double-blade diamond roller and a manufacturing method thereof to solve the problems in the background art.

[0005] In order to achieve the above object, the application provides the following technical scheme: a high-precision double-blade diamond roller and a manufacturing method thereof, comprising a base ring, a diamond grinding ring fixedly sleeved on the outer surface of the base ring, an inner ring cavity formed in the inner surface of the base ring, a through hole formed in the outer surface of the base ring, an injection part fixedly sleeved in the through hole and fixedly connected with the diamond grinding ring, a sleeve shaft movably sleeved on the inner surface of the base ring, a first mounting ring and a second mounting ring fixedly sleeved on the outer surface of the sleeve shaft, a mounting bolt movably sleeved on the front surface of the first mounting ring, a threaded hole formed in the side surface of the base ring, the inner surface of the threaded hole being threadedly sleeved with the mounting bolt, a communication cavity formed in the end surface of the sleeve shaft, a ring groove formed in the outer surface of the sleeve shaft, a first communication sleeve hole and a second communication sleeve hole formed in the inner part of the sleeve shaft, the first communication sleeve hole penetrating through the communication cavity and being in communication with the ring groove, a movable ring movably sleeved on the inner surface of the ring groove, a liquid inlet pipe fixedly connected to the outer surface of the movable ring, a first limiting plate and a second limiting plate fixedly connected to the outer surface of the sleeve shaft, a curved hole formed in the inner part of the second limiting plate, the second communication sleeve hole penetrating through the communication cavity and being in communication with the inner ring cavity, and a sleeving hole formed in the side surface of the first mounting ring, the inner surface of the sleeving hole being movably sleeved with the mounting bolt.

[0006] Preferably, the bottom surface of the first mounting ring and the side surface of the base ring are both provided with clamping grooves, and the outer surfaces of the first limiting plate and the second limiting plate are movably sleeved with the clamping grooves.

[0007] Preferably, the number of the first limiting plate and the second limiting plate is three, and the three first limiting plates and the three second limiting plates are annularly and equally spaced.

[0008] Preferably, the outer surface of the movable ring is provided with a circular hole, and the circular hole is in communication with the liquid inlet pipe.

[0009] Preferably, a sealing gasket is arranged in the inner wall of the ring groove, and the sealing gasket is arranged on both sides of the movable ring.

[0010] Preferably, a sealing plug is threadedly sleeved on the end surface of the sleeve shaft, and the sealing plug is threadedly sleeved in the communication cavity.

[0011] Preferably, the number of the diamond grinding ring is two groups, the two groups of diamond grinding rings are symmetrically distributed on the outer surface of the base ring, and there is a spacing between the two groups of diamond grinding rings.

[0012] The manufacturing method of the high-precision double-blade diamond roller further comprises a mold sleeve, a mold gasket, a mold ring and a sealing bolt, the mold gasket is movably arranged above the mold sleeve, and the mold ring is fixedly sleeved on the inner surface of the mold sleeve.

[0013] First step: preparation and processing of the base ring, select steel as the base ring material and prepare into a ring structure and process an inner ring cavity at the inner surface, and drill a through hole from the outer surface of the base ring, process internal threads in the through hole, and process the surface of the base ring to have a roughness of Ra;

[0014] Second step: preparation of diamond mixture, prepare metal alloy powder, ceramic material powder and diamond powder, and mix them in a ratio of 1:1.3:3.4, use wet mixing and add lubricant, fully stir and mix, then take out and sinter after 2h of standing to obtain diamond mixed abrasive particles;

[0015] Third step: mold assembly and feeding of the base ring, place the mold sleeve on the top surface of the mold pad, screw the sealing bolt from the inside of the base ring into the through hole, and assemble the base ring into the mold sleeve, first feed the diamond bond into the annular chamber between the mold sleeve and the base ring, and locate it inside the mold ring, then feed the prepared diamond abrasive particles into the diamond bond and keep uniform filling;

[0016] Fourth step: compression molding and material removal, use the external high-temperature compression equipment to compress the mixed material after feeding, separate the mold pad and the mold sleeve after compression molding, separate the base ring and the mold sleeve by pressure, cut the ring groove from the middle of the formed diamond grinding layer using a cutting device, separate the two groups of diamond grinding rings, and unscrew the threaded sleeve joint sealing bolt to complete the molding and material removal.

[0017] The beneficial effects of the present application are as follows:

[0018] 1、The present application utilizes the ring groove and the communication cavity in the sleeve shaft, as well as the first communication sleeve hole and the second communication sleeve hole in the sleeve shaft, cooperates with the movable ring movably sleeved in the ring groove, and rotates to stably input the cutting fluid into the sleeve shaft and guide it into the inner ring cavity of the base ring, cooperates with the through hole in the base ring to make the input cutting fluid fully enter the through hole and directly contact the injection part of the internal diamond grinding ring, thereby greatly improving the heat absorption effect, and cooperates with the sprayed cutting fluid to perform liquid cooling from the inner and outer sides of the diamond grinding ring, and cooperates with the input of the cutting fluid to reduce oxidation corrosion and maintain efficient and stable cooling.

[0019] 2、The application is characterized in that the through hole is arranged in the base ring, and the sealing bolt is filled into the through hole in the actual forming and pressing process, so that part of the diamond mixture is filled into the through hole during the actual forming and pressing, and the injection part is formed by solidification when the pressing is completed, the diamond grinding ring part outside the base ring is fixedly sleeved in the through hole, the connection area and the support stress intensity after stable solidification are greatly improved, and the stability of the diamond grinding ring outside is comprehensively improved, the diamond grinding ring is prevented from loosening and falling off after being used for a certain period of time, and the service life is prolonged. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 It is a structural schematic diagram of the application;

[0021] Figure 2 It is a sectional view of the base ring of the application;

[0022] Figure 3 It is an explosion schematic diagram of the first mounting ring of the application;

[0023] Figure 4 It is a sectional view of the application;

[0024] Figure 5 It is Figure 4 It is an enlarged schematic diagram of the structure at A in the middle;

[0025] Figure 6 It is a sleeving schematic diagram between the base ring and the mold sleeve of the application;

[0026] Figure 7 It is a sectional view of the mold sleeve and the base ring after sleeving of the application.

[0027] In the figure: 1, base ring; 2, diamond grinding ring; 3, inner ring cavity; 4, through hole; 5, injection part; 6, threaded hole; 7, sleeve shaft; 8, first mounting ring; 9, sleeving hole; 10, mounting bolt; 11, second mounting ring; 12, communication cavity; 13, ring groove; 14, first communication sleeve hole; 15, movable ring; 16, round hole; 17, liquid inlet pipe; 18, sealing gasket; 19, sealing plug; 20, second communication sleeve hole; 21, first limiting plate; 22, second limiting plate; 23, curved hole; 24, clamping groove; 25, mold sleeve; 26, mold gasket; 27, mold ring; 28, sealing bolt. DETAILED DESCRIPTION

[0028] The technical solutions in the embodiments of the application will be clearly and completely described below with reference to the drawings in the embodiments of the application. Obviously, the described embodiments are only part of the embodiments of the application, rather than all the embodiments of the application. Based on the embodiments in the application, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the application.

[0029] As Figures 1 to 7 shown, the embodiment of the present application provides a high-precision double-blade diamond roller and a manufacturing method thereof, comprising a base ring 1, the outer surface of the base ring 1 is fixedly sleeved with a diamond grinding ring 2, the inner surface of the base ring 1 is provided with an inner ring cavity 3, the outer surface of the base ring 1 is provided with a through hole 4, the through hole 4 is fixedly sleeved with an injection part 5 which is fixedly connected with the diamond grinding ring 2, the inner surface of the base ring 1 is movably sleeved with a sleeve shaft 7, the outer surface of the sleeve shaft 7 is fixedly sleeved with a No. 1 mounting ring 8 and a No. 2 mounting ring 11 respectively, the front surface of the No. 1 mounting ring 8 is movably sleeved with a mounting bolt 10, the side surface of the base ring 1 is provided with a threaded hole 6, the inner surface of the threaded hole 6 is threadedly sleeved with the mounting bolt 10, the end surface of the sleeve shaft 7 is provided with a communication cavity 12, the outer surface of the sleeve shaft 7 is provided with a ring groove 13, the inner part of the sleeve shaft 7 is respectively provided with a No. 1 communication sleeve hole 14 and a No. 2 communication sleeve hole 20, the No. 1 communication sleeve hole 14 penetrates the communication cavity 12 and is in communication with the ring groove 13, the inner surface of the ring groove 13 is movably sleeved with a movable ring 15, the outer surface of the movable ring 15 is fixedly connected with a liquid inlet pipe 17, the outer surface of the sleeve shaft 7 is fixedly connected with a No. 1 limiting plate 21 and a No. 2 limiting plate 22 respectively, the inner part of the No. 2 limiting plate 22 is provided with a curved hole 23, the No. 2 communication sleeve hole 20 penetrates the communication cavity 12 and is in communication with the inner ring cavity 3.

[0030] First embodiment: as Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 shown, when using heat dissipation, the cooling cutting fluid is delivered into the liquid inlet pipe 17 by the hydraulic pump, so that the cutting fluid enters the ring groove 13 through the circular hole 16, and enters the communication cavity 12 through the No. 1 communication sleeve hole 14, and enters the No. 2 communication sleeve hole 20 along the communication cavity 12, and is input into the inner ring cavity 3 of the base ring 1 up and down, and with each group of through holes 4, the cooling liquid in the through hole 4 fully contacts and absorbs the heat of the diamond grinding ring 2, so that the diamond grinding ring 2 is cooled, and the cutting fluid after heat exchange is sprayed out through the curved hole 23 in the No. 2 limiting plate 22, and the sprayed cutting fluid is sprayed to the grinding position during the rotation process.

[0031] First, by using the ring groove 13 and the communication cavity 12 in the sleeve shaft 7, and the first communication sleeve hole 14 and the second communication sleeve hole 20 in the sleeve shaft 7, and cooperating with the movable ring 15 movably sleeved in the ring groove 13, the rotating copy can stably input the cutting fluid into the sleeve shaft 7 and guide it into the inner ring cavity 3 of the base ring 1, cooperate with the through hole 4 inside the base ring 1, so that the cutting fluid entering the through hole 4 can fully enter the through hole 4 and cooperate with the injection part 5 of the internal diamond grinding ring 2 to achieve direct contact, thereby greatly improving the heat absorption effect, cooperating with the sprayed cutting fluid, and cooling from the inside and outside of the diamond grinding ring 2, and cooperating with the cutting fluid, reducing oxidation and corrosion, and maintaining high-efficiency and stable cooling.

[0032] In addition, by cooperating with the through hole 4 opened in the base ring 1, the sealing bolt 28 is spirally filled at the inner end of the through hole 4 during actual forming and pressing, so that part of the diamond mixture is filled into the injection through hole 4 during actual forming and pressing, and solidifies to form the injection part 5 when the pressing is completed, so that the diamond grinding ring 2 on the outside of the base ring 1 is partially fixedly sleeved in the through hole 4, greatly improving the connection area and support stress strength after stable solidification, thereby comprehensively improving the stability of the diamond grinding ring 2 on the outside, avoiding loosening and falling off after a certain period of use, and improving the service life.

[0033] Among them, the bottom surface of the first mounting ring 8 and the side surface of the base ring 1 are provided with clamping grooves 24, and the outer surfaces of the first limiting plate 21 and the second limiting plate 22 are movably sleeved with the clamping grooves 24. By opening the clamping grooves 24, when the first limiting plate 21 and the second limiting plate 22 are sleeved, the rotation direction is limited, the assembly stability of the base ring 1 and the sleeve shaft 7 is further improved, and stable mounting and fixing are realized by cooperating with the mounting and sleeving of the mounting bolt 10.

[0034] Among them, the number of the first limiting plate 21 and the second limiting plate 22 is three, and the three first limiting plates 21 and the three second limiting plates 22 are annularly and equally spaced. By using the annular and equally spaced arrangement, the stress direction is uniformly limited, and the stability after limiting is improved.

[0035] Among them, the outer surface of the movable ring 15 is provided with a circular hole 16, and the circular hole 16 is communicated with the liquid inlet pipe 17. By opening the circular hole 16, the cooling cutting fluid can be conveniently introduced into the ring groove 13 through the liquid inlet pipe 17.

[0036] Among them, the inner wall of the ring groove 13 is provided with a sealing gasket 18, and the sealing gasket 18 is located on both sides of the movable ring 15. By using the sealing gaskets 18 on both sides of the ring groove 13, cooperating with the elastic sealing gasket 18 fixedly sleeved, when the side surface of the movable ring 15 is contacted, the rotation is maintained while the sealing property is good, and the leakage is reduced.

[0037] The end surface of the sleeve shaft 7 is threadedly sleeved with a sealing plug 19, the sealing plug 19 is threadedly sleeved in the communication cavity 12, through the threadedly sleeving of the sealing plug 19, the rotation disassembly is facilitated, and then the cleaning of the communication cavity 12 in the sleeve shaft 7 is realized, and the convenience of subsequent maintenance is improved.

[0038] The number of the diamond grinding rings 2 is two groups, the two groups of diamond grinding rings 2 are symmetrically distributed on the outer surface of the base ring 1, and there is a spacing between the two groups of diamond grinding rings 2, the two groups of diamond grinding rings 2 are formed by subsequent cutting, so as to cooperate with two grinding areas, each area has a group of diamond abrasive grains, this double-blade design can make the diamond roller more efficiently remove the material on the surface of the workpiece, and thus increase its service life.

[0039] The manufacturing method of the high-precision double-blade diamond roller further includes a mold sleeve 25, a mold pad 26, a mold ring 27 and a sealing bolt 28, the mold pad 26 is movably arranged above the mold sleeve 25, the mold ring 27 is fixedly sleeved on the inner surface of the mold sleeve 25, and the preparation steps are as follows:

[0040] First step: preparation and treatment of the base ring 1, selecting steel as the material of the base ring 1 and preparing into a ring structure, machining an inner ring cavity 3 at the inner surface, and drilling a through hole 4 through the outer surface of the base ring 1, machining internal threads in the through hole 4, and roughening the surface of the base ring 1 to Ra4; by increasing the roughness of the outer surface of the base ring 1, the adhesion and fixation effect of the diamond powder is improved, and the stability after compression molding is further improved.

[0041] Second step: preparation of diamond mixture, preparing metal alloy powder, ceramic material powder and diamond powder, and mixing them in a ratio of 1:1.3:3.4, adding a lubricant, fully stirring and mixing, taking out after 2h of standing, and sintering to obtain diamond mixed abrasive grains; by adding the lubricant, the actual mixing effect is improved, the powder flowability is improved, uniform stirring is facilitated, the uniformity after stirring and mixing is improved, and the diamond content is stable, and good grinding performance is maintained.

[0042] Third step: mold assembly and feeding of base ring 1, place mold sleeve 25 on the top surface of mold pad 26, and screw seal bolt 28 from the inside of base ring 1 into through hole 4, and then assemble base ring 1 into mold sleeve 25, first put diamond bond into the annular cavity between mold sleeve 25 and base ring 1, and then put the prepared diamond abrasive particles into the diamond bond, and keep uniform filling; by using the sealing sleeve of seal bolt 28, avoid leakage of part of the mixture during pressing, and subsequent convenient rotation separation, and after separation, form a cavity for subsequent cooling cutting fluid to enter, cooperate with the thread in through hole 4, and further improve the sleeve strength of injection part 5 in through hole 4.

[0043] Fourth step: pressing and material removal, use the external high-temperature pressing equipment to press the mixed material after feeding, after pressing, separate mold pad 26 and mold sleeve 25, and separate base ring 1 and mold sleeve 25 under pressure, use cutting equipment to cut a ring groove from the middle of the formed diamond grinding layer, separate into two groups of diamond grinding rings 2, and rotate out the threaded sleeve of seal bolt 28, complete the forming and material removal.

[0044] Although embodiments of the present application have been shown and described, it is to be understood that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A high-precision double-blade diamond roller comprising a base ring (1), characterized in that: The outer surface of the base ring (1) is fixedly sleeved with a diamond grinding ring (2), the inner surface of the base ring (1) is provided with an inner ring cavity (3), the outer surface of the base ring (1) is provided with a through hole (4), the through hole (4) is fixedly sleeved with an injection part (5) fixedly connected with the diamond grinding ring (2), the inner surface of the base ring (1) is movably sleeved with a sleeve shaft (7), the outer surface of the sleeve shaft (7) is movably sleeved with a first mounting ring (8) and a second mounting ring (11), respectively, the front surface of the first mounting ring (8) is movably sleeved with a mounting bolt (10), the side surface of the base ring (1) is provided with a threaded hole (6), the inner surface of the threaded hole (6) is threadedly sleeved with the mounting bolt (10), the end surface of the sleeve shaft (7) is provided with a communication cavity (12), the outer surface of the sleeve shaft (7) is provided with a ring groove (13), the inner portion of the sleeve shaft (7) is provided with a first communication sleeve hole (14) and a second communication sleeve hole (20), respectively, the first communication sleeve hole (14) penetrates the communication cavity (12) and is in communication with the ring groove (13), the inner surface of the ring groove (13) is movably sleeved with a movable ring (15), the outer surface of the movable ring (15) is fixedly communicated with a liquid inlet pipe (17), the outer surface of the sleeve shaft (7) is fixedly connected with a first limiting plate (21) and a second limiting plate (22), respectively, the inner portion of the second limiting plate (22) is provided with a curved hole (23), the second communication sleeve hole (20) penetrates the communication cavity (12) and is in communication with the inner ring cavity (3), the side surface of the first mounting ring (8) is provided with a sleeving hole (9), and the inner surface of the sleeving hole (9) is movably sleeved with the mounting bolt (10).

2. The high-precision double-blade diamond roller according to claim 1, characterized in that: The bottom surface of the first mounting ring (8) and the side surface of the base ring (1) are both provided with a clamping groove (24), and the outer surfaces of the first limiting plate (21) and the second limiting plate (22) are movably sleeved with the clamping groove (24).

3. The high-precision double-blade diamond roller according to claim 1, characterized in that: The number of the first limiting plate (21) and the second limiting plate (22) is three, and the three first limiting plates (21) and the three second limiting plates (22) are annularly and equally spaced.

4. The high-precision double-blade diamond roller according to claim 1, characterized in that: The outer surface of the movable ring (15) is provided with a circular hole (16), and the circular hole (16) is in communication with the liquid inlet pipe (17).

5. The high-precision double-blade diamond roller according to claim 1, characterized in that: The inner wall of the ring groove (13) is provided with a sealing gasket (18), and the sealing gasket (18) is located on both sides of the movable ring (15).

6. The high-precision double-blade diamond roller according to claim 1, characterized in that: The end surface of the sleeve shaft (7) is threadedly sleeved with a sealing plug (19), and the sealing plug (19) is threadedly sleeved in the communication cavity (12).

7. The high-precision double-bladed diamond roller according to claim 1, wherein: The number of the diamond grinding ring (2) is two groups, and the two groups of diamond grinding rings (2) are symmetrically distributed on the outer surface of the base ring (1), and there is a spacing between the two groups of diamond grinding rings (2).

8. The method of manufacturing a high-precision double-bladed diamond roller according to any one of claims 1-7, characterized in that: It also includes a mold sleeve (25), a mold pad (26), a mold ring (27) and a sealing bolt (28), the mold pad (26) is movably arranged above the mold sleeve (25), the mold ring (27) is fixedly sleeved on the inner surface of the mold sleeve (25), and the preparation steps are as follows: The first step: the preparation and processing of the base ring (1), select steel as the material of the base ring (1) and prepare into a ring structure and process the inner ring cavity (3) at the inner surface, and drill a through hole (4) from the outer surface of the base ring (1), so that the inner thread is processed in the through hole (4), and the surface of the base ring (1) is processed to have a roughness of Ra4; The second step: preparation of diamond mixture, prepare metal alloy powder, ceramic material powder and diamond powder, and mix them in a ratio of 1:1.3:3.4, use wet mixing and add lubricant, mix thoroughly, take out after 2h of standing, and sinter to obtain diamond mixed abrasive particles; The third step: mold assembly and feeding of the base ring (1), place the mold sleeve (25) on the top surface of the mold pad (26), screw the sealing bolt (28) from the inside of the base ring (1) into the through hole (4), and assemble the base ring (1) in the mold sleeve (25), first put the diamond bond into the annular chamber between the mold sleeve (25) and the base ring (1), and locate it inside the mold ring (27), then put the prepared diamond mixed abrasive particles into the diamond bond, and keep uniform filling; The fourth step: pressing and demolding, use the external high temperature pressing equipment to press the mixed material after feeding, after pressing, separate the mold pad (26) and the mold sleeve (25), and separate the base ring (1) and the mold sleeve (25) by pressure, use cutting equipment to cut a ring groove in the middle of the formed diamond grinding layer, separate it into two groups of diamond grinding rings (2), and unscrew the threaded sleeve joint sealing bolt (28), complete the molding and demolding.

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