CN116330560A

CN116330560A - Die and process method for manufacturing circumferential sheet tooth split type resin grinding wheel

Info

Publication number: CN116330560A
Application number: CN202211686692.0A
Authority: CN
Inventors: 宋京新; 梁安宁; 龙慧玲; 谢明星; 王志勇; 宋悠鹏
Original assignee: Guilin Moyuan Material Technology Co ltd; Guilin Champion Union Diamond Co Ltd
Current assignee: Guilin Moyuan Material Technology Co ltd; Guilin Champion Union Diamond Co Ltd
Priority date: 2022-12-26
Filing date: 2022-12-26
Publication date: 2023-06-27

Abstract

The invention relates to a die and a process method for manufacturing a circumferential flake tooth split type resin grinding wheel, and belongs to the field of grinding processing. Comprising the following steps: the device comprises a bottom frame, an outer frame, a top frame, a plurality of lower pressure heads, a plurality of upper pressure heads, a plurality of partition boards, a plurality of parting strips, a plurality of working layers and a plurality of non-working layers; the bottom frame with the top frame one-to-one sets up frame bottom and top, a plurality of the baffle respectively with a plurality of the parting bead is connected, the baffle with the parting bead will the bottom frame the frame with the space that the top frame formed is cut apart into a plurality of cavities, a plurality of lower pressure head one-to-one sets up a plurality of the cavity bottom, a plurality of go up the pressure head one-to-one sets up a plurality of the cavity top the working layer with the non-working layer all sets up down the pressure head with go up between the pressure head. The invention uses the resin grinding wheel tooth sheets manufactured by axial and lateral die stripping to have a large number, the circumferential groove width of the grinding wheel formed by splicing is small, and the manufacturing process of the spliced grinding wheel tooth sheets is optimized.

Description

Die and process method for manufacturing circumferential sheet tooth split type resin grinding wheel

Technical Field

The invention relates to the field of grinding, in particular to a die for manufacturing a circumferential flake tooth split type resin grinding wheel and a process method thereof.

Background

In the prior art, a resin grinding wheel with an end face as a grinding face is generally adopted, and two kinds of continuous whole rings and sectional rings are generally adopted. The sectional ring is further subdivided into radial through water tank type, inner water tank, outer chip removal tank or the composite mode. For continuous whole-ring grinding wheels, the chip removal cooling capacity is poor, burn phenomena are easy to occur in the grinding process, and the grinding machine is especially not suitable for grinding processing of high-rotation-speed fine grinding materials and large grinding areas (namely, the instantaneous grinding contact area of a grinding tool and a workpiece). For sectional grinding wheels, though the through type water tank is favorable for chip removal, the utilization rate of cooling water is extremely low, and the through type water tank, the inner water tank and the outer chip tank are limited by the strength of a die material in the whole manufacturing process, so that the grinding wheels with a large number and small circumferential groove width are difficult to manufacture.

In the prior art, grinding wheels with small diameters are generally integrally manufactured, and are sintered with a die during manufacturing, so that the size of the grinding wheels in the die occupies a large place, and the production efficiency is low; for grinding wheels with larger diameters, racks with longer circumferential lengths are generally manufactured, and then a plurality of racks are spliced end to form a grinding ring.

Disclosure of Invention

The technical problems to be solved by the invention are as follows: a mold and a process method for manufacturing a split type resin grinding wheel with circumferential thin teeth are provided, and the manufacturing process of the split type resin grinding wheel is optimized.

The technical scheme for solving the technical problems is as follows: a mold for manufacturing a circumferential-sheet-tooth split resin grinding wheel, comprising: the device comprises a bottom frame, an outer frame, a top frame, a plurality of lower pressure heads, a plurality of upper pressure heads, a plurality of partition boards, a plurality of parting strips, a plurality of working layers and a plurality of non-working layers; the bottom frame and the top frame are arranged at the bottom end and the top end of the outer frame in a one-to-one correspondence manner, the plurality of partition boards are respectively connected with the plurality of partition bars, the space formed by the bottom frame, the outer frame and the top frame is divided into a plurality of chambers by the partition boards and the partition bars, the plurality of lower pressure heads are arranged at the bottom ends of the chambers in a one-to-one correspondence manner, the plurality of upper pressure heads are arranged at the top ends of the chambers in a one-to-one correspondence manner, the plurality of working layers are arranged below the plurality of non-working layers in a one-to-one correspondence manner, the working layers and the non-working layers are arranged between the lower pressure heads and the upper pressure heads, and the partition boards and the partition bars are respectively connected with the bottom frame, the outer frame and the top frame; the baffle is provided with a plurality of working layer baffles, a plurality of non-working layer baffles, a plurality of baffle and a plurality of concave-convex structure down, the working layer baffle the non-working layer baffle with the baffle is bar platelike structure down, concave-convex structure sets up the working layer baffle with on the non-working layer baffle.

The beneficial effects of the invention are as follows: compared with the mold for manufacturing split type grinding wheels in the prior art, on one hand, the number of the resin grinding wheel tooth sheets manufactured by the mold in the technical scheme of the invention is large, the effective utilization rate of the mold and the processing efficiency of the tooth sheets are effectively improved, the width of the concave-convex structure on the side wall of each single tooth sheet is narrow, and when a plurality of tooth sheets are densely split to form the grinding wheels, the width of grooves for cooling or chip removal in the circumferential direction of the grinding wheels is very narrow, so that the effects of quick chip removal and intensive point internal cooling of the grinding wheels are more facilitated; on the other hand, when the mold in the technical scheme is disassembled, the mold can be disassembled in the vertical direction of the mold and can be disassembled in the horizontal direction, the mold disassembling mode is beneficial to manufacturing the functional concave-convex structure such as the supporting convex points on the side wall of the resin tooth plate, the tooth plate manufacturing process is creatively optimized, the effective utilization rate of the mold is improved, the integrity of the concave-convex structure on the tooth plate is ensured, and meanwhile, the water and chip removing space of teeth and teeth are ensured.

On the basis of the technical scheme, the invention can be improved as follows.

Further, the bottom frame and the top frame are of annular plate-shaped structures with the sizes matched with the outer frame, the bottom surface and the top surface of the outer frame are in one-to-one correspondence with the top surface of the bottom frame and the bottom surface of the top frame in butt joint, the non-working layer partition plate is in butt joint with the inner wall of the top frame, and the lower partition plate is in butt joint with the inner wall of the bottom frame.

Further, the frame is tubular structure, the symmetry is provided with multiunit baffle mounting hole on the lateral wall around the frame, the baffle mounting hole is the through-hole, a plurality of working layer baffle one-to-one with multiunit baffle mounting hole adaptation is connected.

The beneficial effects of adopting the further scheme are as follows: the bottom frame, the top frame and the outer frame are matched with the partition plates and the parting strips, so that the whole die can be divided into a plurality of cavities, the manufacturing quantity of the resin tooth plates is conveniently improved, and the die effective utilization rate and the processing efficiency of the resin tooth plates during manufacturing of the resin tooth plates are further facilitated to be improved.

Further, the non-working layer partition board and the lower partition board are arranged at the upper end and the lower end of the working layer partition board in a one-to-one correspondence manner, a plurality of the working layer partition boards, a plurality of the non-working layer partition boards and a plurality of the lower partition boards are all coaxially arranged in the horizontal direction, the working layer partition boards and the non-working layer partition boards are arranged in a one-to-one correspondence manner and are coaxially arranged in the vertical direction, the top surfaces of the working layer partition boards and the bottom surfaces of the non-working layer partition boards are in a saw-tooth shape in mutually adaptive connection, and the bottom surfaces of the working layer partition boards are in butt joint with the top surfaces of the lower partition boards.

The beneficial effects of adopting the further scheme are as follows: the partition plate is split into the working layer partition plate, the non-working layer partition plate and the lower partition plate, on one hand, concave-convex structures with different functions can be designed according to actual needs, so that the number of resin tooth plates manufactured by a die is increased, the groove width of a grinding wheel formed by combining a plurality of tooth plates in the circumferential direction is narrowed, and the cooling and chip removal of the grinding wheel are facilitated; on the other hand is favorable to demolishing working layer baffle and non-working layer baffle in proper order along the direction of perpendicular to grinding wheel tooth side when the die is disassembled, has guaranteed the integrality of grinding wheel tooth side functional concave-convex structure, has avoided the destruction when grinding wheel tooth is disassembled.

Further, the baffle still is provided with a plurality of parting bead mounting grooves, parting bead mounting grooves are bar recess column structure, and a plurality of parting bead mounting grooves symmetry respectively set up a plurality of on the lateral wall about working layer baffle, a plurality of non-working layer baffle and a plurality of lower baffle, a plurality of on the working layer baffle parting bead mounting grooves a plurality of on the non-working layer baffle parting bead mounting grooves with a plurality of on the lower baffle parting bead mounting grooves all coaxial setting in the horizontal direction, in the vertical direction one-to-one and coaxial setting.

The beneficial effects of adopting the further scheme are as follows: the spacer bar mounting groove is matched with the working layer partition plate, the non-working layer partition plate and the lower partition plate, so that the cavities for manufacturing the resin tooth plates are flush in the three-dimensional direction, the defect of the sintered resin tooth plates caused by the self reasons of the die is avoided, and the resin tooth plates cannot be spliced into a finished product grinding wheel.

Further, the concave-convex structures are arranged on the side wall between the two adjacent parting bead mounting grooves of the working layer partition plate and the non-working layer partition plate in one-to-one correspondence, the side wall between the parting bead mounting groove and the inner wall of the outer frame at the forefront end of the working layer partition plate and the non-working layer partition plate, and the side wall between the parting bead mounting groove and the inner wall of the outer frame at the rearmost end of the working layer partition plate and the non-working layer partition plate.

The beneficial effects of adopting the further scheme are as follows: the concave-convex structure is favorable for prefabricating the required functional structures of the working layer and the non-working layer of the grinding wheel tooth sheet, so that the functional structures on the side walls of the sintered resin tooth sheet working layer and the non-working layer are narrower, the circumferential groove width of the annular grinding wheel which is spliced is narrower, and the functions of improving the cooling and chip removal effects, enhancing the supporting strength of the grinding wheel and the like are further facilitated.

Further, the parting bead is of a block structure which is connected with the parting bead mounting groove in an adapting mode, and the leftmost parting bead and the rightmost parting bead are respectively abutted to the inner wall of the bottom frame, the inner wall of the outer frame and the inner wall of the top frame.

The beneficial effects of adopting the further scheme are as follows: the parting bead is favorable for being matched with the partition plate to divide the space formed by the bottom frame, the outer frame and the top frame into a plurality of cavities, so that the number of the manufactured resin tooth plates is increased.

Further, the lower pressure head and the upper pressure head are of block structures, and the lower pressure head and the upper pressure head are arranged in a plurality of cavities formed by the partition board, the partition bar, the bottom frame, the outer frame and the top frame in a vertically movable mode.

The beneficial effects of adopting the further scheme are as follows: the upper pressure head and the lower pressure head are beneficial to pressing the working layer and the non-working layer, so that the working layer powder and the non-working layer powder are pressed in the vertical direction, and the subsequent high-temperature sintering is facilitated.

The invention also provides a process method for manufacturing the circumferential flake tooth split type resin grinding wheel, which comprises the following steps of:

s1: a plurality of division bars are respectively arranged on a plurality of lower partition plates, so that the inner wall of the bottom frame is connected with the division bars and the lower partition plates;

s2: arranging a plurality of lower pressure heads in a plurality of cavities formed by the bottom frame, the parting bead and the lower partition plate in a one-to-one correspondence manner;

s3: installing a plurality of working layer separators on a plurality of lower separators in a one-to-one correspondence manner, installing a plurality of parting strips on the plurality of working layer separators respectively, and installing an outer frame on a bottom frame so that the parting strips and the working layer separators are connected with the inner wall of the outer frame;

s4: uniformly putting working layer powder above the pressing head, and uniformly putting non-working layer powder on the working layer powder;

s5: the method comprises the steps of respectively installing a plurality of parting strips on a plurality of non-working layer partition boards, adaptively connecting the bottom end of the non-working layer partition board with the top end of the working layer partition board, installing a top frame on an outer frame, and connecting the parting strips and the non-working layer partition board with the inner wall of the top frame;

s6: arranging a plurality of upper pressure heads in a plurality of cavities formed by the top frame, the parting bead and the non-working layer partition plate in a one-to-one correspondence manner;

s7: the upper pressure head is downwards forced when the lower pressure head is upwards forced, so that the powder of the working layer and the powder of the non-working layer are compressed;

s8: carrying out high-temperature sintering on the die, and removing the die after the die is cooled to obtain a plurality of tooth plates which comprise a working layer, a non-working layer and a structure matched with the concave-convex structure on the side walls of the working layer and the non-working layer;

s9: the non-working layers of the plurality of tooth plates are connected with the grinding wheel base body, so that the plurality of tooth plate working layers are connected with each other to form an annular structure.

The beneficial effects of the invention are as follows: realizing the functional effect of quick chip removal and intensive point internal cooling of the grinding tool; the method has the advantages that some functional structures of the tooth surface in the circumferential direction can not be realized due to interference in the whole die manufacturing process are conveniently realized; grinding wheels with a large number and smaller circumferential width of the water tank or the chip removal tank can be realized; the sintering efficiency can be improved, and the sintering cost can be reduced; the feeding is simple and reliable; the grinding wheel is beneficial to automatic assembly of the grinding ring and large-scale production of the grinding wheel, and the processing cost of the grinding wheel is reduced; the adaptability of the grinding wheel for high-rotation-speed grinding is improved; the adaptability of finer grinding materials of the grinding wheel is improved; the adaptability of the grinding wheel to powerful grinding is improved; the performance of the grinding wheel is greatly improved; the method is suitable for manufacturing the ceramic bond grinding wheel; the composite structure is suitable for the mutual amalgamation of the resin tooth sheet, the metal tooth sheet and the ceramic tooth sheet, wherein the metal tooth sheet can play the roles of enhancing the strength of the grinding ring and improving the wear resistance.

Drawings

FIG. 1 is a schematic diagram of the overall structure of a mold according to an embodiment of the present invention;

FIG. 2 is a top view of the structure shown in FIG. 1;

FIG. 3 is a cross-sectional view of the structure of FIG. 2 taken along section line A-A;

FIG. 4 is a cross-sectional view of the structure of FIG. 2 taken along section line B-B with both the upper ram and the lower ram compressed;

FIG. 5 is a cross-sectional view of the structure of FIG. 2 taken along section line B-B with neither the upper ram nor the lower ram compressed;

fig. 6 is a schematic diagram of an outer frame structure according to an embodiment of the present invention;

FIG. 7 is a schematic view of a separator according to an embodiment of the present invention;

FIG. 8 is a front view of the structure shown in FIG. 7;

FIG. 9 is an enlarged view of a portion of the V region of the structure of FIG. 8;

FIG. 10 is a schematic view of a separator and spacer connection provided in an embodiment of the present invention;

FIG. 11 is a schematic view of the connection between a lower separator and a working layer separator according to an embodiment of the present invention;

FIG. 12 is a schematic view of the connection of a bottom frame, a top frame, a partition and a spacer provided in an embodiment of the present invention;

FIG. 13 is a side view of the structure shown in FIG. 12;

FIG. 14 is an enlarged view of a portion of the structure of FIG. 13 at the X area;

FIG. 15 is a schematic view of a tooth plate and grinding wheel base connection provided by an embodiment of the present invention;

fig. 16 is an enlarged view of a portion of the T region of the structure shown in fig. 15.

Wherein the double-headed arrow in fig. 1 indicates the mounting orientation of the components.

In the drawings, the list of components represented by the various numbers is as follows:

1. a bottom frame; 2. an outer frame; 3. a top frame; 4. a lower pressure head; 5. an upper pressure head; 6. a partition plate; 7. a parting bead; 8. a working layer; 9. a non-working layer; 21. a partition plate mounting hole; 61. a working layer separator; 62. a non-working layer separator; 63. a lower partition plate; 64. a parting bead mounting groove; 65. concave-convex structure.

Detailed Description

The principles and features of the present invention are described below with examples given for the purpose of illustration only and are not intended to limit the scope of the invention.

As shown in fig. 1 to 5, a mold for manufacturing a circumferential-sheet-tooth split resin grinding wheel, comprising: a bottom frame 1, an outer frame 2, a top frame 3, a plurality of lower pressure heads 4, a plurality of upper pressure heads 5, a plurality of partition boards 6, a plurality of parting strips 7, a plurality of working layers 8 and a plurality of non-working layers 9; the bottom frame 1 and the top frame 3 are arranged at the bottom end and the top end of the outer frame 2 in a one-to-one correspondence manner, the plurality of partition boards 6 are respectively connected with the plurality of partition bars 7, the partition boards 6 and the partition bars 7 divide a space formed by the bottom frame 1, the outer frame 2 and the top frame 3 into a plurality of chambers, the plurality of lower pressure heads 4 are arranged at the bottom ends of the plurality of chambers in a one-to-one correspondence manner, the plurality of upper pressure heads 5 are arranged at the top ends of the plurality of chambers in a one-to-one correspondence manner, the plurality of working layers 8 are arranged below the plurality of non-working layers 9, the working layers 8 and the non-working layers 9 are arranged between the lower pressure heads 4 and the upper pressure heads 5, and the partition boards 6 and the partition bars 7 are respectively connected with the bottom frame 1, the outer frame 2 and the top frame 3; the separator 6 is provided with a plurality of working layer separators 61, a plurality of non-working layer separators 62, a plurality of lower separators 63, and a plurality of concave-convex structures 65, the working layer separators 61, the non-working layer separators 62, and the lower separators 63 are each of a strip-shaped plate-like structure, and the concave-convex structures 65 are provided on the working layer separators 61 and the non-working layer separators 62.

Among them, it is to be understood that: the term "circumferential foil teeth" in the heading of the present invention means: when the annular grinding wheel is formed by splicing the plurality of resin tooth plates, compared with the spliced grinding wheel in the prior art, the single resin tooth plate on the annular grinding wheel is thinner, and the width of the circumferential groove for cooling or chip removal on the grinding wheel formed by the concave-convex structure on the side wall of the resin tooth plate is narrower.

The beneficial effects of the invention are as follows: compared with the mold for manufacturing split type grinding wheels in the prior art, on one hand, the resin tooth plates manufactured by the mold in the technical scheme of the invention are more in number, so that the effective utilization rate of the mold and the processing efficiency of the tooth plates are effectively improved, the width of the concave-convex structure on the side wall of each tooth plate is narrow, and when a plurality of tooth plates are densely split to form the grinding wheels, the width of grooves for cooling or chip removal in the circumferential direction of the grinding wheels is very narrow, and the effects of quick chip removal and intensive point internal cooling of the grinding wheels are more facilitated; on the other hand, when the mold is disassembled, the mold can be disassembled in the vertical direction of the mold and can be disassembled in the horizontal direction, the mold disassembling mode is beneficial to manufacturing the concave-convex structure on the side wall of the resin tooth plate, the tooth plate manufacturing process is creatively optimized, the effective utilization rate of the mold is improved, and the integrity of the concave-convex structure on the tooth plate is ensured.

Preferably, as shown in fig. 1 to 5, the bottom frame 1 and the top frame 3 have annular plate structures with sizes matched with the outer frame 2, the bottom surface and the top surface of the outer frame 2 are in one-to-one correspondence with the top surface of the bottom frame 1 and the bottom surface of the top frame 3, the non-working layer separator 62 is in contact with the inner wall of the top frame 3, and the lower separator 63 is in contact with the inner wall of the bottom frame 1.

Preferably, as shown in fig. 1 to 6, the outer frame 2 has a tubular structure, a plurality of groups of partition board mounting holes 21 are symmetrically arranged on the front and rear side walls of the outer frame 2, the partition board mounting holes 21 are through holes, and a plurality of working layer partition boards 61 are correspondingly connected with the plurality of groups of partition board mounting holes 21 in a one-to-one mode.

Among them, it is to be understood that: in the preferred embodiment of the present invention, the bottom frame 1 and the top frame 3 are both in regular quadrilateral annular plate structures, the outer frame 2 is in regular quadrilateral tubular structures, and the cross sections of the bottom frame 1, the outer frame 2 and the top frame 3 are all regular quadrilaterals with matched dimensions, which is beneficial to improving the effective utilization rate of the mold to the greatest extent possible.

The beneficial effects of adopting the preferable scheme are as follows: the bottom frame, the top frame and the outer frame are matched with the partition plates and the parting strips, so that the whole die can be divided into a plurality of cavities, the manufacturing quantity of the resin tooth plates is conveniently improved, and the die effective utilization rate and the processing efficiency of the resin tooth plates during manufacturing of the resin tooth plates are further facilitated to be improved.

Preferably, as shown in fig. 12 to 14, the non-working layer separator 62 and the lower separator 63 are disposed at the upper end and the lower end of the working layer separator 61 in a one-to-one correspondence manner, the plurality of working layer separators 61, the plurality of non-working layer separators 62 and the plurality of lower separators 63 are all disposed coaxially in the horizontal direction, and are disposed coaxially in a one-to-one correspondence manner in the vertical direction, the top surface of the working layer separator 61 and the bottom surface of the non-working layer separator 62 are in a zigzag shape in which they are connected in a mutually fit manner, and the bottom surface of the working layer separator 61 abuts against the top surface of the lower separator 63.

Among them, it is to be understood that: in the technical scheme of the invention, after the working layer powder is added, the added non-working layer powder is a material in a molten state in a sintering process, and the mutually matched saw-tooth-shaped structures arranged on the top surface of the working layer partition plate 61 and the bottom surface of the non-working layer partition plate 62 are beneficial to cutting off the non-working layer 9 in the molten state, so that the materials of the non-working layers 9 are positioned above the working layers 8 in a one-to-one correspondence manner.

The beneficial effects of adopting the preferable scheme are as follows: the partition plate is split into the working layer partition plate, the non-working layer partition plate and the lower partition plate, on one hand, concave-convex structures with different functions can be designed according to actual needs, so that the number of resin tooth plates manufactured by a die is increased, the groove width of a grinding wheel formed by combining a plurality of tooth plates in the circumferential direction is narrowed, and the cooling and chip removal of the grinding wheel are facilitated; on the other hand is favorable to demolishing working layer baffle and non-working layer baffle in proper order along the direction of perpendicular to grinding wheel tooth side when the die is disassembled, has guaranteed the integrality of grinding wheel tooth side functional concave-convex structure, has reduced the breakage rate when grinding wheel tooth is disassembled.

Preferably, as shown in fig. 7 to 9, the partition board 6 is further provided with a plurality of partition board mounting grooves 64, the partition board mounting grooves 64 are in a bar-shaped groove structure, the plurality of partition board mounting grooves 64 are symmetrically disposed on left and right side walls of the plurality of working layer partition boards 61, the plurality of non-working layer partition boards 62 and the plurality of lower partition boards 63, the plurality of partition board mounting grooves 64 on the working layer partition boards 61, the plurality of partition board mounting grooves 64 on the non-working layer partition boards 62 and the plurality of partition board mounting grooves 64 on the lower partition boards 63 are all coaxially disposed in the horizontal direction, and are in one-to-one correspondence and coaxially disposed in the vertical direction.

The beneficial effects of adopting the preferable scheme are as follows: the spacer bar mounting groove is matched with the working layer partition plate, the non-working layer partition plate and the lower partition plate, so that the cavities for manufacturing the resin tooth plates are flush in the three-dimensional direction, defects of the sintered resin tooth plates caused by the self reasons of the die are avoided, and the resin tooth plates cannot be spliced into a finished grinding wheel.

Preferably, as shown in fig. 7 to 9, the concave-convex structures 65 are disposed on the side walls between the two adjacent parting strip mounting grooves 64 of the working layer partition plate 61 and the non-working layer partition plate 62, the side walls between the parting strip mounting grooves 64 and the inner wall of the outer frame 2 at the foremost ends of the working layer partition plate 61 and the non-working layer partition plate 62, and the side walls between the parting strip mounting grooves 64 and the inner wall of the outer frame 2 at the rearmost ends of the working layer partition plate 61 and the non-working layer partition plate 62 in a one-to-one correspondence.

Among them, it is to be understood that: the concave-convex structure 65 has no fixed shape, and determines what structure is set according to the function required to be optimized of the grinding wheel, such as a point support structure between teeth, a structure for blocking excessive concentration of cooling water at an outer diameter under centrifugal force, a structure for assisting flow of cooling water to an end face, a structure for giving consideration to water distribution of a radial inner ring, a ring, an outer ring, and the like. In the actual grinding process, since the working layer 8 of the resin tooth sheet generally needs good drainage and chip removal and high strength and high deformation resistance, the concave-convex structure 65 on the working layer partition 61 is correspondingly configured to make the working layer 8 on the resin tooth sheet have grooves for cooling and chip removal and convex structures for supporting strength. Similarly, the concave-convex structure 65 on the non-working layer separator 62 is correspondingly configured to provide the non-working layer 9 on the resin tooth sheet with functions such as consolidation and anti-flying.

The beneficial effects of adopting the preferable scheme are as follows: the concave-convex structure is beneficial to prefabricating the required functional structure of the working layer and the non-working layer of the resin tooth sheet, so that the functional structure on the side wall of the sintered working layer and the non-working layer of the resin tooth sheet is narrower, the circumferential groove width of the spliced annular grinding wheel is narrower, and the functions of improving the cooling and chip removal effects, enhancing the supporting strength of the grinding wheel and the like are more beneficial.

Preferably, as shown in fig. 10 and 11, the division bar 7 has a block structure adapted to be connected to the division bar mounting groove 64, and the leftmost and rightmost division bars 7 are respectively abutted against the inner wall of the bottom frame 1, the inner wall of the outer frame 2, and the inner wall of the top frame 3.

The beneficial effects of adopting the preferable scheme are as follows: the parting bead is favorable for being matched with the partition plate to divide the space formed by the bottom frame, the outer frame and the top frame into a plurality of cavities, so that the number of the manufactured resin tooth plates is increased.

Preferably, as shown in fig. 4 and 5, the lower pressing head 4 and the upper pressing head 5 are both in block structures, and the lower pressing head 4 and the upper pressing head 5 are both disposed in a plurality of chambers formed by the partition 6 and the partition 7, the bottom frame 1, the outer frame 2 and the top frame 3 in a manner of being capable of moving up and down.

The beneficial effects of adopting the preferable scheme are as follows: the upper pressure head and the lower pressure head are beneficial to pressing the working layer and the non-working layer, so that the working layer powder and the non-working layer powder are pressed in the vertical direction, and the subsequent high-temperature sintering is facilitated.

Preferably, as shown in fig. 15 and 16, the present invention also provides a process for manufacturing a circumferential-sheet-tooth split resin grinding wheel, comprising the steps of:

s1: a plurality of division bars 7 are respectively arranged on a plurality of lower partition plates 63, so that the inner wall of the bottom frame 1 is connected with the division bars 7 and the lower partition plates 63;

s2: a plurality of lower pressure heads 4 are arranged in a plurality of cavities formed by the bottom frame 1, the parting bead 7 and the lower partition 63 in a one-to-one correspondence manner;

s3: a plurality of working layer separators 61 are arranged on a plurality of lower separators 63 in a one-to-one correspondence manner, a plurality of division bars 7 are respectively arranged on the plurality of working layer separators 61, the outer frame 2 is arranged on the bottom frame 1, and the division bars 7 and the working layer separators 61 are connected with the inner wall of the outer frame 2;

s4: uniformly putting working layer powder above the lower pressure head 4, and uniformly putting non-working layer powder on the working layer powder;

s5: the plurality of division bars 7 are respectively arranged on the plurality of non-working layer partition plates 62, the bottom end of the non-working layer partition plates 62 is connected with the top end of the working layer partition plates 61 in an adapting way, the top frame 3 is arranged on the outer frame 2, and the division bars 7 and the non-working layer partition plates 62 are connected with the inner wall of the top frame 3;

s6: a plurality of upper pressure heads 5 are arranged in a plurality of cavities formed by the top frame 3, the parting bead 7 and the non-working layer partition plate 62 in a one-to-one correspondence manner;

s7: the upper pressure head 5 is downwards forced while the lower pressure head 4 is upwards forced, so that the working layer powder and the non-working layer powder are compressed;

s8: carrying out high-temperature sintering on the die, and removing the die after the die is cooled to obtain a plurality of tooth plates which comprise a working layer 8 and a non-working layer 9 and have structures matched with the concave-convex structures 65 on the side walls of the working layer 8 and the non-working layer 9;

s9: the non-working layers 9 of the plurality of tooth plates are connected with the grinding wheel base body, so that the plurality of tooth plate working layers 8 are connected with each other to form an annular structure.

A process for manufacturing a circumferential-shim-toothed split resin grinding wheel is further described below:

in step S3, mounting the plurality of working layer separators 61 to the plurality of lower separators 63 in one-to-one correspondence means that: abutting the bottom surface of the working layer partition 61 against the top surface of the lower partition 63; the mounting of the outer frame 2 to the base frame 1 means: the bottom surface of the outer frame 2 is abutted against the top surface of the bottom frame 1.

In step S4, the working layer powder and the non-working layer powder may be powders of materials such as resin, metal or ceramic, and the specific materials may be selected according to actual needs.

In step S5, attaching the top frame 3 to the outer frame 2 means: the bottom surface of the top frame 3 is abutted against the top surface of the outer frame 2.

In steps S2 to S6, since the lower separator 63, the working layer separator 61 and the non-working layer separator 62 are coaxially disposed in the vertical direction, and the barrier rib mounting groove 64 on the lower separator 63, the barrier rib mounting groove 64 on the working layer separator 61 and the barrier rib mounting groove 64 on the non-working layer separator 62 are coaxially disposed in the vertical direction, the plurality of chambers formed by the bottom frame 1 and the

barrier ribs

7, 63 in step 2 and the plurality of chambers formed by the top frame 3 and the barrier ribs 7, the non-working layer separator 62 in step 6 are in one-to-one correspondence with the plurality of chambers formed by the outer frame 2 and the barrier ribs 7, the working layer separator 61 and are the same chamber.

In step S7, the working layer powder and the non-working layer powder enter the concave-convex structures 65 prefabricated on the working layer partition 61 and the non-working layer partition 62 when being pressed by the vertical pressure.

In step S8, the axial demolding is required to be matched with the lateral demolding during demolding, namely: the top frame 3, the outer frame 2 and the bottom frame 1 are removed in the vertical direction, and the working layer separator 61, the non-working layer separator 62, the lower separator 63 and the division bar 7 are removed in the horizontal direction. The demolding method is favorable for manufacturing the concave-convex structure on the side wall of the resin tooth plate, creatively optimizes the tooth plate manufacturing process, improves the effective utilization rate of the mold, and ensures the integrity of the concave-convex structure on the tooth plate.

In step S9, the outer circle of the annular grinding ring formed by the plurality of resin tooth plates is closed, and the annular grinding wheel needs to be shaped, edged and inspected for finished products before being put into use, and meanwhile, the materials of the annular grinding tooth plates may not be completely the same, for example, the resin tooth plates, the metal tooth plates and the ceramic tooth plates may be mutually spliced to form the annular grinding ring.

In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present invention.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present invention, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.

In the present invention, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.

In the present invention, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact via an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.

In the description of the present specification, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction.

While embodiments of the present invention have been shown and described above, it will be understood that the above embodiments are illustrative and not to be construed as limiting the invention, and that variations, modifications, alternatives and variations may be made to the above embodiments by one of ordinary skill in the art within the scope of the invention.

Claims

1. A mold for manufacturing a circumferential-sheet-tooth split resin grinding wheel, comprising: the device comprises a bottom frame (1), an outer frame (2), a top frame (3), a plurality of lower pressure heads (4), a plurality of upper pressure heads (5), a plurality of partition boards (6), a plurality of partition bars (7), a plurality of working layers (8) and a plurality of non-working layers (9);

the bottom frame (1) and the top frame (3) are arranged at the bottom end and the top end of the outer frame (2) in a one-to-one correspondence manner, a plurality of partition boards (6) are respectively connected with a plurality of partition strips (7), the partition boards (6) and the partition strips (7) divide a space formed by the bottom frame (1), the outer frame (2) and the top frame (3) into a plurality of chambers, a plurality of lower pressure heads (4) are arranged at the bottom ends of the chambers in a one-to-one correspondence manner, a plurality of upper pressure heads (5) are arranged at the top ends of the chambers in a one-to-one correspondence manner, a plurality of working layers (8) are arranged below a plurality of non-working layers (9), the working layers (8) and the non-working layers (9) are arranged between the lower pressure heads (4) and the upper pressure heads (5), and the partition boards (6) and the partition strips (7) are respectively connected with the bottom frame (1), the outer frame (2) and the top frame (3);

the baffle (6) is provided with a plurality of working layer baffles (61), a plurality of non-working layer baffles (62), a plurality of lower baffles (63) and a plurality of concave-convex structures (65), working layer baffles (61), non-working layer baffles (62) and lower baffles (63) are bar-shaped platy structures, concave-convex structures (65) are arranged on working layer baffles (61) and non-working layer baffles (62).

2. The mold for manufacturing the circumferential thin-sheet-tooth split resin grinding wheel according to claim 1, wherein the bottom frame (1) and the top frame (3) are annular plate-shaped structures with sizes matched with the outer frame (2), the bottom surface and the top surface of the outer frame (2) are in one-to-one correspondence with the top surface of the bottom frame (1) and the bottom surface of the top frame (3), the non-working layer partition plate (62) is in contact with the inner wall of the top frame (3), and the lower partition plate (63) is in contact with the inner wall of the bottom frame (1).

3. The mold for manufacturing the circumferential thin-sheet tooth split type resin grinding wheel according to claim 1, wherein the outer frame (2) is of a tubular structure, a plurality of groups of partition plate mounting holes (21) are symmetrically formed in the front side wall and the rear side wall of the outer frame (2), the partition plate mounting holes (21) are through holes, and a plurality of working layer partition plates (61) are in one-to-one correspondence and are in fit connection with the plurality of groups of partition plate mounting holes (21).

4. The mold for manufacturing the circumferential thin-sheet tooth-split resin grinding wheel according to claim 1, wherein the non-working layer separator (62) and the lower separator (63) are arranged at the upper end and the lower end of the working layer separator (61) in a one-to-one correspondence manner, a plurality of the working layer separators (61), a plurality of the non-working layer separators (62) and a plurality of the lower separators (63) are all coaxially arranged in the horizontal direction and are coaxially arranged in a one-to-one correspondence manner in the vertical direction, the top surfaces of the working layer separators (61) and the bottom surfaces of the non-working layer separators (62) are in a zigzag shape which are mutually adapted and connected, and the bottom surfaces of the working layer separators (61) and the top surfaces of the lower separators (63) are abutted.

5. The mold for manufacturing the circumferential thin-sheet tooth-split resin grinding wheel according to claim 1, wherein the partition plate (6) is further provided with a plurality of partition bar mounting grooves (64), the partition bar mounting grooves (64) are of a bar-shaped groove-like structure, the partition bar mounting grooves (64) are symmetrically arranged on left and right side walls of the working layer partition plates (61), the non-working layer partition plates (62) and the lower partition plates (63), the partition bar mounting grooves (64) on the working layer partition plates (61), the partition bar mounting grooves (64) on the non-working layer partition plates (62) and the partition bar mounting grooves (64) on the lower partition plates (63) are coaxially arranged in the horizontal direction, and the partition bar mounting grooves are coaxially arranged in a one-to-one correspondence manner in the vertical direction.

6. The mold for manufacturing a resin grinding wheel with split circumferential thin teeth according to claim 5, wherein a plurality of the concave-convex structures (65) are provided on the side wall between the working layer partition plate (61) and the non-working layer partition plate (62) adjacent to each other with respect to the partition mounting groove (64), the side wall between the partition mounting groove (64) at the forefront end of the working layer partition plate (61) and the non-working layer partition plate (62) and the inner wall of the outer frame (2), and the side wall between the partition mounting groove (64) at the rearmost end of the working layer partition plate (61) and the non-working layer partition plate (62) and the inner wall of the outer frame (2) in one-to-one correspondence.

7. The mold for manufacturing a resin grinding wheel with split circumferential flake teeth according to claim 5, wherein the parting bead (7) has a block structure adapted to be connected with the parting bead mounting groove (64), and the leftmost parting bead (7) and the rightmost parting bead (7) are respectively abutted against the inner wall of the bottom frame (1), the inner wall of the outer frame (2) and the inner wall of the top frame (3).

8. The mold for manufacturing the circumferential thin-sheet tooth split type resin grinding wheel according to claim 1, wherein the lower ram (4) and the upper ram (5) are of block structures, and the lower ram (4) and the upper ram (5) are arranged in a plurality of cavities formed by the partition plate (6) and the partition bar (7) and the bottom frame (1), the outer frame (2) and the top frame (3) in a vertically movable manner.

9. A process for manufacturing a resin grinding wheel of the split type with circumferential teeth, characterized in that it comprises the steps of:

s1: a plurality of division bars (7) are respectively arranged on a plurality of lower partition plates (63), so that the inner wall of the bottom frame (1) is connected with the division bars (7) and the lower partition plates (63);

s2: a plurality of lower pressure heads (4) are arranged in a plurality of cavities formed by the bottom frame (1), the parting bead (7) and the lower partition plate (63) in a one-to-one correspondence manner;

s3: a plurality of working layer separators (61) are correspondingly arranged on a plurality of lower separators (63), a plurality of parting strips (7) are respectively arranged on the plurality of working layer separators (61), an outer frame (2) is arranged on a bottom frame (1), and the parting strips (7) and the working layer separators (61) are connected with the inner wall of the outer frame (2);

s4: uniformly putting working layer powder above the lower pressure head (4), and uniformly putting non-working layer powder on the working layer powder;

s5: a plurality of parting strips (7) are respectively arranged on a plurality of non-working layer partition boards (62), the bottom end of the non-working layer partition board (62) is connected with the top end of the working layer partition board (61) in an adapting way, the top frame (3) is arranged on the outer frame (2), and the parting strips (7) and the non-working layer partition boards (62) are connected with the inner wall of the top frame (3);

s6: a plurality of upper pressure heads (5) are arranged in a plurality of cavities formed by the top frame (3), the parting strips (7) and the non-working layer partition plates (62) in a one-to-one correspondence manner;

s7: the upper pressure head (5) is downwards forced when the lower pressure head (4) is upwards forced, so that the powder of the working layer and the powder of the non-working layer are compressed;

s8: carrying out high-temperature sintering on the die, and removing the die after the die is cooled to obtain a plurality of tooth plates which comprise a working layer (8) and a non-working layer (9) and have structures matched with the concave-convex structures (65) on the side walls of the working layer (8) and the non-working layer (9);

s9: the non-working layers (9) of the plurality of tooth plates are connected with the grinding wheel base body, so that the plurality of tooth plate working layers (8) are connected with each other to form an annular structure.