CN113878505A - Mosaic type bolt locking diamond grinding wheel - Google Patents
Mosaic type bolt locking diamond grinding wheel Download PDFInfo
- Publication number
- CN113878505A CN113878505A CN202111178659.2A CN202111178659A CN113878505A CN 113878505 A CN113878505 A CN 113878505A CN 202111178659 A CN202111178659 A CN 202111178659A CN 113878505 A CN113878505 A CN 113878505A
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- China
- Prior art keywords
- grinding wheel
- grinding
- block
- cavity
- bolt
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24D—TOOLS FOR GRINDING, BUFFING OR SHARPENING
- B24D5/00—Bonded abrasive wheels, or wheels with inserted abrasive blocks, designed for acting only by their periphery; Bushings or mountings therefor
- B24D5/06—Bonded abrasive wheels, or wheels with inserted abrasive blocks, designed for acting only by their periphery; Bushings or mountings therefor with inserted abrasive blocks, e.g. segmental
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24D—TOOLS FOR GRINDING, BUFFING OR SHARPENING
- B24D3/00—Physical features of abrasive bodies, or sheets, e.g. abrasive surfaces of special nature; Abrasive bodies or sheets characterised by their constituents
- B24D3/02—Physical features of abrasive bodies, or sheets, e.g. abrasive surfaces of special nature; Abrasive bodies or sheets characterised by their constituents the constituent being used as bonding agent
- B24D3/04—Physical features of abrasive bodies, or sheets, e.g. abrasive surfaces of special nature; Abrasive bodies or sheets characterised by their constituents the constituent being used as bonding agent and being essentially inorganic
- B24D3/06—Physical features of abrasive bodies, or sheets, e.g. abrasive surfaces of special nature; Abrasive bodies or sheets characterised by their constituents the constituent being used as bonding agent and being essentially inorganic metallic or mixture of metals with ceramic materials, e.g. hard metals, "cermets", cements
- B24D3/10—Physical features of abrasive bodies, or sheets, e.g. abrasive surfaces of special nature; Abrasive bodies or sheets characterised by their constituents the constituent being used as bonding agent and being essentially inorganic metallic or mixture of metals with ceramic materials, e.g. hard metals, "cermets", cements for porous or cellular structure, e.g. for use with diamonds as abrasives
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24D—TOOLS FOR GRINDING, BUFFING OR SHARPENING
- B24D5/00—Bonded abrasive wheels, or wheels with inserted abrasive blocks, designed for acting only by their periphery; Bushings or mountings therefor
- B24D5/16—Bushings; Mountings
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Ceramic Engineering (AREA)
- Inorganic Chemistry (AREA)
- Polishing Bodies And Polishing Tools (AREA)
Abstract
The invention discloses an embedded bolt locking diamond grinding wheel which mainly comprises a grinding wheel base body, a wedge block, a grinding block, a bolt pair and the like; welding a grinding block on the wedge block to form an inlay body, and positioning the wedge block by using a cavity of the grinding wheel base body; fixing the wedge block by using a bolt and a nut; after the grinding block is worn to a certain degree in the grinding process of the grinding wheel, only the mosaic body needs to be replaced, the mosaic body is convenient to disassemble, and other structures do not need to be replaced and can be repeatedly used; the spacing exists between the modules, so that the grinding wheel can conveniently remove chips, the heat dissipation performance is improved, the service life of the grinding block is prolonged, and the cost is reduced.
Description
Technical Field
The invention relates to a novel grinding wheel, in particular to an embedded type bolt locking diamond grinding wheel
Background
Along with the rapid development of the precise and ultra-precise grinding technology, the requirement on the grinding wheel is higher and higher, and the metal bond diamond grinding wheel is widely applied to grinding processing due to the advantages of excellent grinding performance, good forming, high bonding strength, long service life and the like, but two main problems exist at present: firstly, most of the existing metal bond diamond grinding wheel structures are monolithic integrated, the radial size of the grinding wheel is gradually reduced in the grinding process, when the abrasion condition of the grinding wheel meets certain use abrasion requirements, a new grinding wheel needs to be replaced again, the replaced grinding wheel cannot be used again, material waste is caused to a considerable extent, and the use cost is increased; secondly, a large amount of cutting chips are generated in the grinding process of the grinding wheel, and local heat is caused by unsmooth chip removal, so that the workpiece is burnt, and even the processing quality is seriously influenced.
Disclosure of Invention
In order to solve the problems existing in the technical background, the invention provides an embedded bolt locking diamond grinding wheel.
The scheme adopted by the invention for solving the problems is as follows:
the embedded type bolt locking diamond grinding wheel is characterized in that the grinding wheel structure comprises a grinding wheel base body, a wedge block, a grinding block and a bolt nut.
The novel grinding wheel is characterized in that the arrangement relation and the connection mode among all structures are as follows: the grinding block and the wedge block are connected into an inlay body by means of brazing, the inlay body is positioned in the cavity by means of the consistency of the shape of the wedge block and the shape of the cavity, and the grinding wheel base body and the wedge block are fixed by means of a bolt pair after positioning.
The grinding wheel base body is of a reusable structure, is manufactured by adopting a casting process, is made of common steel and comprises a body, a cavity, bolt holes and strip-shaped holes.
Furthermore, the cavities of the grinding wheel base body are arranged on the outer circumferential surface of the grinding wheel base body at equal intervals, the shapes and the sizes of all the cavities are kept consistent, the end surface of each cavity is wedge-shaped, the upper surface and the lower surface of each cavity are circumferential surfaces which are coaxial with the grinding wheel base body and are in contact with the lower surface of the wedge block,
furthermore, the included angle of two side edges of a cavity on the grinding wheel base body keeps a certain angle range, the included angle is regulated to be 30-50 degrees, the distance range of the upper surface and the lower surface of the cavity is 20-25 percent of the diameter of the grinding wheel base body, and the width of the cavity is regulated to be 70-90 percent of the width of the grinding wheel base body
Further, the grinding wheel base body is provided with bolt holes, the number of the bolt holes is the same as that of the cavities, the bolt holes correspond to the cavities one by one, the diameter of each bolt hole is based on the size of an actually used module, the M6-M8 specification is processed according to the national standard, and the diameter of the circumference where the center of each bolt hole is located is 70% -85% of the diameter of the grinding wheel base body.
Further, the grinding wheel base body is provided with strip-shaped holes, the number of the strip-shaped holes is the same as that of the cavities, the strip-shaped holes correspond to the cavities one to one and are located under the bolt holes, the end faces of the strip-shaped holes are rectangular, the height range is 10-20mm, the width range is 10-15 mm, and the position relation between the strip-shaped holes and the cavities can guarantee that the strip-shaped holes can smoothly go deep into the ejector pins to eject out the wedge blocks.
The wedge block is a disposable component, can be disassembled, is manufactured by adopting a casting process, and is made of common steel. When the grinding abrasive block of the insert needs to be replaced, the two are replaced together.
Furthermore, the end face shape of the wedge block is consistent with that of the end face of the cavity, the lower surface of the wedge block is in contact with the lower surface of the cavity, the height of the upper surface of the wedge block is 2-4 mm higher than that of the upper surface of the cavity, the rest sizes of the wedge block are the same as the corresponding sizes of the cavity, bolt holes are formed in the wedge block, and the relative positions and the aperture sizes of the bolt holes are the same as those of the corresponding bolt holes in the cavity.
The grinding abrasive block is a disposable component which can be disassembled, the components of the grinding abrasive block are metal bond and diamond, the grinding abrasive block is sintered by a sintering furnace after cold pressing, and when the grinding abrasive block reaches the replacement condition, the insert is directly replaced.
Furthermore, the end face of the grinding abrasive block is wedge-shaped, the included angle of two side faces is the same as the included angle of two side faces of the wedge block, the upper surface and the lower surface of the grinding abrasive block are circumferential faces, the lower surface of the grinding abrasive block is coincident with the upper surface of the wedge block, the length of the grinding abrasive block is the same, the front surface and the rear surface of the grinding abrasive block are symmetrical relative to the front surface and the rear surface of the wedge block, the width of the grinding abrasive block is slightly smaller than the width of the wedge block by 4-8 mm, and the height of the grinding abrasive block is 10-20mm.
Furthermore, the mosaic body needs electric spark modification when being installed on the grinding wheel base body for the first time, and the upper surface of the grinding block is modified into an arc shape concentric with the upper surface of the wedge block.
The method for replacing the mosaic body by the grinding wheel is characterized in that when the abrasion loss of the grinding block reaches the replacement condition, the mosaic body is taken out from the cavity by utilizing the combined action of clamping of the wire pliers and ejection of the ejector pin, and the mosaic body is replaced by a new mosaic body after being taken out.
Drawings
Fig. 1 is an overall structure diagram of a mosaic bolt locking diamond grinding wheel.
FIG. 2 is a view showing a structure of a grinding wheel base.
Fig. 3 is a cross-sectional end view of the substrate.
Figure 4 is a top view of the grinding wheel.
Fig. 5 is a wedge structure view.
FIG. 6 is a view showing a structure of a grinding pad.
Figure 7 is a schematic view of a grinding block and wedge insert.
Fig. 8 is an overall end sectional view of the grinding wheel.
The labels in the above figures are: 1. grinding wheel base, 2, wedge block, 3, grinding abrasive block, 4, bolt pair, 5, grinding wheel base end face, 6, cavity, 7, bolt hole, 8, strip hole, 9, cavity end face, 10, cavity upper surface, 11, cavity lower surface, 12, cavity side, 13, bolt hole center, 14, strip hole upper edge, 15, strip hole side, 16, strip hole lower edge, 17, grinding wheel base broadside, 18, cavity broadside, 19, cavity long edge, 20, grinding abrasive block lower surface, 21, grinding abrasive block end face, 22, grinding abrasive block upper surface, 23, wedge block side face, 24, grinding abrasive block side face, 25, grinding abrasive block lower surface, 26, grinding abrasive block upper surface.
Detailed Description
The invention is described in detail with reference to the accompanying drawings, and as shown in fig. 1, the embedded bolt locking diamond grinding wheel is composed of a grinding wheel base body 1, a wedge block 2, a grinding abrasive block 3 and a bolt pair 4.
The matrix structure is the supporter of whole emery wheel, and whole appearance is discoid, as shown in fig. 2, and the emery wheel base member includes die cavity 6, bolt hole 7 and bar hole 8, because die cavity 6 is more suitable for selecting casting process preparation base member 1, and the material is ordinary steel, and the base member does not contact with the work piece, can keep certain material strength for a long time, repeatedly usable many times.
The grinding wheel base body is provided with cavities, the cavities 6 are arranged on the outer circumferential surface of the grinding wheel base body 1 at equal intervals, the front surface and the rear surface of each cavity 6 are symmetrical about the central plane of the grinding wheel base body 1, the symmetrical surfaces of two side surfaces 12 of each cavity 6 are superposed with the radius direction of the base body 1, the shapes and the sizes of all the cavities are kept consistent, as shown in figure 3, the end surface 9 of each cavity is wedge-shaped, the upper surface 10 is the circumferential surface coaxial with the grinding wheel base body, the lower surface 11 of each cavity is the circumferential surface coaxial with the grinding wheel base body, the lower surface 11 is contacted with the lower surface 20 of the wedge block, the included angle between two side edges 12 of each cavity is kept within a certain angle range, which is regulated to be 30-50 degrees, the upper surface and the lower surface of each cavity are in parallel relation, the distances of the two surfaces are equal, the distance range is regulated to be 20-25 percent of the diameter of the grinding wheel base body, the width 18 is regulated to be 70-90 percent of the width 17 of the grinding wheel base body, the number of cavities distributed on the outer circumference of the whole base body 1 is regulated to be 5-15
The grinding wheel base body 1 is provided with the bolt holes 7, the number of the bolt holes is the same as that of cavities, the bolt holes and the cavities are in one-to-one correspondence, the center lines of the bolt holes 7 are located on symmetrical surfaces of two side edges of the cavities, the direction of the center lines of the bolt holes 7 is parallel to the axis of the grinding wheel, the diameter of the bolt holes 7 is based on the size of a practically used module, the specification of the diameter of M6-M8 bolts is selected according to the national standard, and the diameter of the circumference where the centers of all the bolt holes 7 are located is 70% -85% of the diameter of the grinding wheel base body.
There is strip hole 8 in the emery wheel base member, and strip hole 8 quantity is the same with die cavity quantity and both one-to-one, and under strip hole 8 was located the bolt hole, the strip hole terminal surface was the rectangle, long limit 15 length scope 10 ~ 20mm, 14 length scope 10 ~ 15mm on the broadside, the last 14 of strip hole 8 was in between die cavity lower surface 11 and bolt hole 7, and the lower 16 of following of strip hole 8 is in below the die cavity lower surface 11, and this mutual position relation can guarantee that the thimble deepens the strip hole smoothly ejecting with the voussoir.
The wedge block 2 is of a detachable structure, is welded with the grinding block 3 to form a disposable structure, is manufactured by adopting a casting process and is made of common steel. The shape of the wedge block end face 21 is consistent with that of the cavity end face 9 and is wedge-shaped, the wedge block lower surface 20 is in contact with the cavity lower surface 11, and after the two surfaces are in contact, the central surfaces of all wedges can be ensured to be superposed with the central surface of a grinding wheel, as shown in figure 8, the wedge block upper surface 22 is 2-4 mm higher than the cavity upper surface 10, a welding seam space is reserved, the rest sizes are the same as the corresponding sizes of the cavity 9, the wedge block 2 is provided with a bolt hole 7, and the position and the aperture size of the bolt hole 7 relative to a base body are the same as those of the bolt holes in the cavity.
The grinding and grinding block 3 is of a detachable structure, as shown in fig. 7, the components of the grinding and grinding block are metal bonding agent and diamond, material powder is placed in a sintering furnace for sintering after being subjected to cold press molding in a die, and is welded with the wedge block 2 to form a disposable structure, as shown in fig. 8, the end face of the grinding and grinding block 3 is in a wedge shape, the included angle between two side faces 24 is the same as that between two side faces 23 of the wedge block, the upper surface 26 and the lower surface 25 of the grinding and grinding block are arc faces concentric with the upper surface 22 of the wedge block, as shown in fig. 7, the lower surface 25 of the grinding and grinding block is coincident with the upper surface 22 of the wedge block, the length of the grinding and grinding block is the same, the front and back faces of the grinding block 3 are symmetrical about the front and back faces of the wedge block 2, the width of the grinding and grinding block height are slightly smaller than 4-8 mm of the wedge block, and the grinding block height is 10-20mm.
The use steps of the grinding wheel are that firstly, a grinding block 3 and a wedge block 2 are welded into an mosaic body by brazing, and the mutual position relationship of the two components after welding is described above; secondly, installing the mosaic body into the cavity according to the requirements; thirdly, the embedding body is fixed by matching the bolt pair with the bolt hole; fourthly, performing electric spark shape correction on the installed novel grinding wheel to ensure that the appearance of the grinding abrasive block 3 meets the requirements, and the novel grinding wheel can be normally used after the electric spark shape correction is finished; fifthly, when the abrasion loss of the grinding abrasive block 3 reaches the replacement standard, the cutting pliers are used for clamping and matching with the ejector pins extending into the strip-shaped holes to take out the mosaic bodies; and sixthly, replacing a new mosaic body, repeating the second, third, fourth and steps, and repeating the steps in sequence.
Claims (9)
1. An embedded bolt locking diamond grinding wheel is characterized by comprising a grinding wheel base body, a wedge block, a grinding block and a bolt nut; the grinding wheel base body comprises a body, a cavity, bolt holes and strip-shaped holes;
the grinding block is welded on the wedge block to form an inlay body, the inlay body is arranged in a cavity of the grinding wheel base body, and the inlay body is fixed on the grinding wheel base body by utilizing the matching of a bolt and a nut with the grinding wheel base body and a bolt hole on the wedge block;
the grinding wheel base body is of a reusable structure, and the grinding block and the wedge block are of disposable structures and can be assembled and disassembled;
cavities arranged at equal intervals are arranged on the outer circumferential surface of the grinding wheel base body, the end surface of each cavity is in a wedge shape, and the upper surface and the lower surface of each wedge shape are circumferential surfaces and are parallel to the axial direction of the grinding wheel.
2. The diamond grinding wheel with embedded bolt locking according to claim 1, characterized in that the included angle of the two side surfaces of the cavity of the grinding wheel base is 30-50 degrees, the maximum distance between the upper surface and the lower surface is 20-25 percent of the diameter of the grinding wheel base, the width of the cavity is 70-90 percent of the width of the grinding wheel base, and the front surface and the rear surface are symmetrically arranged.
3. The diamond grinding wheel for locking mosaic bolts according to claim 1, wherein the bolt holes are equally spaced on the grinding wheel base and have the same number as the cavities, and the centers of the bolt holes are located on the circumference of 70 to 85% of the diameter of the grinding wheel base.
4. The diamond according to claim 1, wherein the grinding wheel body is provided with strip-shaped holes arranged at equal intervals, the centers of the strip-shaped holes and the bolt hole are located on the same diameter of the grinding wheel body, the strip-shaped holes are rectangular, 10-20mm in length and 10-15 mm in width and located right below the bolt hole, the upper surface of each strip-shaped hole is located between the bolt hole and the lower surface of the cavity, and the lower surface of each strip-shaped hole is located below the lower surface of the cavity, so that the grinding wheel is convenient to disassemble.
5. The diamond grinding wheel for locking embedded bolts according to claim 1, wherein the end face shape of the wedge block is matched with the end face shape of the cavity, the height of the wedge block is slightly higher than the depth of the cavity by 2-4 mm, the lower surface of the wedge block is matched with the lower surface of the cavity, and the wedge block is provided with bolt holes, the diameter and the position of which are consistent with those of the bolt holes in the cavity.
6. The diamond grinding wheel with embedded bolt locking according to claim 1, wherein the end face of the grinding block is wedge-shaped, the included angle between the two side faces of the grinding block is consistent with the included angle between the two side faces of the wedge block, the upper surface and the lower surface of the grinding block are both arc surfaces, the length of the lower surface is the same as that of the upper surface of the wedge block, the lower surface of the grinding block is coincident with the upper surface of the wedge block, the width of the lower surface of the grinding block is 4-8 mm smaller than that of the wedge block, the height of the grinding block is 10-20mm, and the front and rear surfaces of the grinding block are symmetrical with respect to the front and rear surfaces of the wedge block.
7. The mounted bolt-lock diamond abrasive wheel according to claim 6, wherein the insert is required to be trimmed using spark technology.
8. An inserted bolt-locking diamond grinding wheel according to claim 1, characterized in that the grinding wheel base can be reused by replacing the insert by gripping it with a wire cutter to remove the insert from the cavity, mounting a new insert on the base and spark dressing.
9. The diamond grinding wheel with mosaic bolts locked according to claim 8, wherein when the mosaic bodies are difficult to take out by using wire cutters, the mosaic bodies are ejected outwards from the strip-shaped holes by using ejector pins to assist in completing the replacement of the mosaic bodies.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111178659.2A CN113878505A (en) | 2021-10-10 | 2021-10-10 | Mosaic type bolt locking diamond grinding wheel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111178659.2A CN113878505A (en) | 2021-10-10 | 2021-10-10 | Mosaic type bolt locking diamond grinding wheel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113878505A true CN113878505A (en) | 2022-01-04 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111178659.2A Pending CN113878505A (en) | 2021-10-10 | 2021-10-10 | Mosaic type bolt locking diamond grinding wheel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113878505A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114734381A (en) * | 2022-03-29 | 2022-07-12 | 哈尔滨工业大学 | Split type CVD diamond grinding tool and manufacturing method thereof |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4484560A (en) * | 1982-07-13 | 1984-11-27 | Asahi Diamond Industrial Co., Ltd. | Diamond segmented saw blade |
| JPH0541668U (en) * | 1991-11-11 | 1993-06-08 | 三和研磨工業株式会社 | Chip mounting structure for cutting wheel |
| CN2140808Y (en) * | 1992-11-14 | 1993-08-25 | 梁源 | Diamond grinding wheel capable of adjusting end direction of abrasive block |
| JPH0578476U (en) * | 1992-03-30 | 1993-10-26 | 武三郎 谷川 | Grindstone attachment |
| CN2148640Y (en) * | 1992-12-12 | 1993-12-08 | 梁源 | Diamond grinding wheel |
| JPH11156729A (en) * | 1997-11-21 | 1999-06-15 | Yano Kazuya | Grinding wheel possible to exchange tips |
| CN207171837U (en) * | 2017-09-08 | 2018-04-03 | 广东工业大学 | A kind of Split-type grinding wheel |
| CN208713729U (en) * | 2018-08-15 | 2019-04-09 | 河南中磨钻石工具有限公司 | Skive is used in a kind of grinding |
-
2021
- 2021-10-10 CN CN202111178659.2A patent/CN113878505A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4484560A (en) * | 1982-07-13 | 1984-11-27 | Asahi Diamond Industrial Co., Ltd. | Diamond segmented saw blade |
| JPH0541668U (en) * | 1991-11-11 | 1993-06-08 | 三和研磨工業株式会社 | Chip mounting structure for cutting wheel |
| JPH0578476U (en) * | 1992-03-30 | 1993-10-26 | 武三郎 谷川 | Grindstone attachment |
| CN2140808Y (en) * | 1992-11-14 | 1993-08-25 | 梁源 | Diamond grinding wheel capable of adjusting end direction of abrasive block |
| CN2148640Y (en) * | 1992-12-12 | 1993-12-08 | 梁源 | Diamond grinding wheel |
| JPH11156729A (en) * | 1997-11-21 | 1999-06-15 | Yano Kazuya | Grinding wheel possible to exchange tips |
| CN207171837U (en) * | 2017-09-08 | 2018-04-03 | 广东工业大学 | A kind of Split-type grinding wheel |
| CN208713729U (en) * | 2018-08-15 | 2019-04-09 | 河南中磨钻石工具有限公司 | Skive is used in a kind of grinding |
Non-Patent Citations (2)
| Title |
|---|
| 于爱兵;吴磊;: "可再制造的电镀金刚石砂轮结构设计", 兵工学报, no. 05 * |
| 于爱兵;吴磊;洪鑫;何源;吴毛朝;陈秋洁;: "可拆卸电镀金刚石砂轮结构设计", 机械设计与研究, no. 02 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114734381A (en) * | 2022-03-29 | 2022-07-12 | 哈尔滨工业大学 | Split type CVD diamond grinding tool and manufacturing method thereof |
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