CN109822451B - Quick cooling grinding head and grinding device - Google Patents
Quick cooling grinding head and grinding device Download PDFInfo
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- CN109822451B CN109822451B CN201910214420.2A CN201910214420A CN109822451B CN 109822451 B CN109822451 B CN 109822451B CN 201910214420 A CN201910214420 A CN 201910214420A CN 109822451 B CN109822451 B CN 109822451B
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Abstract
The invention provides a quick cooling grinding head and a grinding device. The quick cooling grinding head comprises a grinding part, a rod part and a connecting part for connecting the grinding part and the rod part, wherein the grinding part is provided with a central hole, the connecting part is provided with a plurality of communication holes communicated with the central hole for conveying cooling liquid to the central hole, and the communication holes can generate negative pressure in the central hole when rotating, so that the cooling liquid is easy to be sucked into the central hole.
Description
Technical Field
The invention relates to the technical field of grinding tools, in particular to a quick cooling grinding head and a grinding device.
Background
Along with the continuous improvement of the living standard of people, the requirements of people on the appearance of processed products are also higher and higher, and the processing technology is also more and more complex. In the prior art, a grinding device is generally used for grinding the surface of a workpiece to polish the surface of the workpiece. The grinding treatment refers to that a machining surface coated or pressed with abrasive particles by a grinding device and a workpiece are relatively moved under a certain pressure to machine the surface of the workpiece, so that the surface of the workpiece is ground to form a layer of material, and the surface of the workpiece can reach an accurate size, an accurate geometric shape and lower surface roughness by grinding the surface of the workpiece.
The grinding device generally comprises a grinding head, wherein the grinding head comprises a cylindrical grinding part and a rod part connected with the grinding part, the axis of the grinding part is coincident with the axis of the rod part, abrasive particles are arranged on the outer side surface of the grinding part, and when the grinding device works, the grinding device drives the rod part to rotate around the axis of the rod part so as to drive the grinding part to rotate around the axis of the rod part, and the rotating grinding part is contacted with the surface of a workpiece to grind the surface of the workpiece.
When the grinding part of the grinding head grinds the surface of a workpiece, a large amount of heat is generated, if the temperature is not reduced, the high temperature generated by grinding can influence the workpiece to deform the workpiece, the final grinding effect is influenced, and meanwhile, the grinding part of the grinding head can deform due to the high temperature, so that the service life of the grinding head is greatly reduced. For this reason, in the prior art, it is generally required to spray a cooling liquid between the grinding portion of the grinding head and the surface of the workpiece during the grinding process to achieve the purpose of rapid cooling, and the cooling effect of the grinding portion of the grinding head is poor in such a cooling manner.
Therefore, it is necessary to provide a quick cooling grinding head to solve the above problems.
Disclosure of Invention
The invention aims to provide a quick cooling grinding head which is simple in structure and can be quickly cooled when rotating to grind.
Another object of the present invention is to provide a grinding apparatus, which has a simple structure and can be rapidly cooled when the grinding head is rotated to perform grinding.
In order to achieve the above objective, the present invention provides a quick cooling grinding head, comprising a grinding part, a rod part and a connecting part for connecting the grinding part and the rod part; the grinding part is provided with a central hole, and the connecting part is provided with a plurality of communication holes communicated with the central hole for conveying cooling liquid to the central hole.
The communication hole can generate negative pressure in the central hole when rotating, thereby being beneficial to sucking cooling liquid into the central hole.
The grinding part is provided with a grinding surface at one end of the grinding part far away from the rod part; the first end of the rod part is accommodated in the central hole, and the second end extends in a direction away from the grinding part; the connecting part is arranged between the hole wall of the central hole and the side wall of the rod part, the connecting part is provided with a surface parallel to the grinding surface of the grinding part, and the communication holes extend from the surface to the central hole.
The communication holes are sequentially arranged at intervals along the circumferential direction of the rod part;
the dimension of each communication hole in the circumferential direction of the stem portion gradually decreases in a direction approaching the second end of the stem portion.
The number of the communication holes is four, and the four communication holes are arranged at equal intervals and have the same shape.
Each communication hole is surrounded by a hole wall of the central hole, a side wall of the rod part and two opposite side surfaces; one of the two side surfaces is parallel to the axis of the rod part, and the included angle between the other side surface and the axis of the rod part is an acute angle.
One end of the connecting part, which is close to the first end of the rod part, is flush with the first end of the rod part; the other end of the connecting part, which is close to the second end of the rod part, is flush with the other end of the grinding part, which is close to the second end of the rod part.
The grinding part is cylindrical; the rod part is a round rod; the axis of the grinding part coincides with the axis of the rod part.
The material of the grinding part is diamond.
The invention also provides a grinding device which comprises the rapid cooling grinding head.
The invention has the beneficial effects that: the quick cooling grinding head comprises a grinding part, a rod part and a connecting part for connecting the grinding part and the rod part, wherein the grinding part is provided with a central hole, the connecting part is provided with a plurality of communication holes communicated with the central hole for conveying cooling liquid to the central hole, and the communication holes can generate negative pressure in the central hole when rotating, so that the cooling liquid is easy to be sucked into the central hole. The grinding device has a simple structure, and the grinding head can be rapidly cooled when the grinding head is rotated to grind.
Drawings
For a further understanding of the nature and technical aspects of the present invention, reference should be made to the following detailed description of the invention and to the accompanying drawings, which are provided for purposes of reference only and are not intended to limit the invention.
In the drawings of which there are shown,
FIG. 1 is a bottom perspective view of the quick cooling grater of the present invention;
FIG. 2 is a top perspective view of the quick cooling grater of the present invention;
fig. 3 is a schematic cross-sectional view of the quick cooling grater of the present invention.
Detailed Description
In order to further explain the technical means adopted by the present invention and the effects thereof, the following detailed description is given with reference to the preferred embodiments of the present invention and the accompanying drawings.
Referring to fig. 1 to 3, the present invention provides a quick cooling grinding head, which includes a grinding portion 10, a rod portion 20, and a connecting portion 30 connecting the grinding portion 10 and the rod portion 20. The polishing section 10 is provided with a center hole 11, and the connection section 30 is provided with a plurality of communication holes 31 communicating with the center hole 11 for supplying the cooling liquid to the center hole 11. The communication hole 31 can generate negative pressure in the center hole 11 when rotated, thereby facilitating the intake of the cooling liquid into the center hole 11.
Specifically, the grinding section 10 has a grinding face at its end remote from the shank 20. The first end of the rod 20 is accommodated in the central hole 11, and the second end extends away from the grinding part 10. The connection portion 30 is provided between the wall of the central hole 11 and the side wall of the shaft portion 20, the connection portion 30 has a surface parallel to the polishing surface of the polishing portion 10, and the plurality of communication holes 31 extend from the surface toward the central hole 11.
Specifically, the plurality of communication holes 31 are provided at intervals in the circumferential direction of the shaft portion 20 in order. The size of each communication hole 31 in the circumferential direction of the stem 20 gradually decreases in a direction approaching the second end of the stem 20.
Preferably, the number of the communication holes 31 is four, and the four communication holes 31 are equally spaced and have the same shape.
Further, each communication hole 31 is surrounded by the wall of the central hole 11, the side wall of the stem 20 and two oppositely disposed side faces 311. One of the two sides 311 is parallel to the axis of the shank 20 and the other is at an acute angle to the axis of the shank 20.
Further, a chamfer with a radius of 0.3mm is formed between each side 311 and the wall of the central bore 11 and the side wall of the shank 20.
Specifically, the end of the connecting portion 30 near the first end of the stem 20 is flush with the first end of the stem 20. The other end of the connecting portion 30 near the second end of the rod portion 20 is flush with the other end of the grinding portion 10 near the second end of the rod portion 20.
Specifically, the grinding part 10 has a cylindrical shape with a diameter of 18mm, a length of 16mm, and a diameter of 12mm in the center hole 11. The shank 20 is a round shank having a diameter of 8mm and a length of 39mm. The length of the portion of the stem 20 which is received in the central bore 11 is 4mm. The axis of the grinding section 10 coincides with the axis of the shaft section 20.
Specifically, the material of the grinding part 10 is diamond.
It should be noted that, the quick cooling grinding head of the present invention has a simple structure by providing the central hole 11 in the grinding portion 10 and providing the plurality of communication holes 31 communicating with the central hole 11 in the connecting portion 30 for delivering the cooling liquid to the central hole 11, and the communication holes 31 can generate negative pressure in the central hole 11 during rotation, thereby facilitating the suction of the cooling liquid into the central hole 11, and further, when the quick cooling grinding head of the present invention is used for grinding operation, the driving rod portion 20 rotates to drive the connecting portion 30 and the grinding portion 10 to rotate, the communication holes 31 rotate to generate negative pressure in the central hole 11, and the cooling liquid is sucked into the central hole 11, so that the grinding portion 10 can be quickly cooled to reduce the temperature of the grinding surface of the grinding portion 10, and the deformation of the grinding portion 10 or the workpiece surface due to the heat generated by grinding is avoided to influence the grinding quality.
Based on the same inventive concept, the invention also provides a grinding device, which comprises the rapid cooling grinding head. The structure of the rapid cooling grater is not repeatedly described herein.
In the polishing apparatus of the present invention, the center hole 11 is provided in the polishing portion 10 of the rapid cooling polishing head, and the plurality of communication holes 31 communicating with the center hole 11 are provided in the connection portion 30 for supplying the cooling liquid to the center hole 11, so that the polishing apparatus has a simple structure, and the communication holes 31 can generate negative pressure in the center hole 11 during rotation, thereby facilitating the cooling liquid to be sucked into the center hole 11, and further, when the polishing apparatus of the present invention is used for polishing operation, the polishing apparatus drives the stem portion 20 of the rapid cooling polishing head to rotate to drive the connection portion 30 and the polishing portion 10 to rotate, the communication holes 31 rotate to generate negative pressure in the center hole 11, and the cooling liquid is sucked into the center hole 11, so that the polishing portion 10 can be rapidly cooled to reduce the temperature of the polishing surface of the polishing portion 10, and the deformation of the polishing portion 10 or the workpiece surface due to the heat generated by polishing is avoided to affect the polishing quality.
In summary, the quick cooling grinding head of the invention comprises a grinding part, a rod part and a connecting part for connecting the grinding part and the rod part, wherein the grinding part is provided with a central hole, the connecting part is provided with a plurality of communication holes communicated with the central hole for conveying cooling liquid to the central hole, and the communication holes can generate negative pressure in the central hole when rotating, thereby being beneficial to sucking the cooling liquid into the central hole. The grinding device has a simple structure, and the grinding head can be rapidly cooled when the grinding head is rotated to grind.
In the above, it should be apparent to those skilled in the art that various other modifications and variations can be made in accordance with the technical solution and the technical idea of the present invention, and all such modifications and variations are intended to fall within the scope of the claims of the present invention.
Claims (4)
1. The quick cooling grinding head is characterized by comprising a grinding part (10), a rod part (20) and a connecting part (30) for connecting the grinding part (10) and the rod part (20); the grinding part (10) is provided with a central hole (11), and the connecting part (30) is provided with a plurality of communication holes (31) communicated with the central hole (11) for conveying cooling liquid to the central hole (11);
the grinding part (10) is provided with a grinding surface at one end far away from the rod part (20); the first end of the rod part (20) is accommodated in the central hole (11), and the second end extends in a direction away from the grinding part (10); the connecting part (30) is arranged between the hole wall of the central hole (11) and the side wall of the rod part (20), the connecting part (30) is provided with a surface parallel to the grinding surface of the grinding part (10), and the plurality of communication holes (31) extend from the surface to the central hole (11);
the communication holes (31) are sequentially arranged at intervals along the circumferential direction of the rod part (20);
the dimension of each communication hole (31) in the circumferential direction of the stem (20) gradually decreases in a direction approaching the second end of the stem (20); when the rapid cooling grinding head performs grinding operation, the driving rod part (20) rotates to drive the connecting part (30) and the grinding part (10) to rotate, and the communication hole (31) can generate negative pressure in the central hole (11) during rotation, so that the cooling liquid can be sucked into the central hole (11);
each communication hole (31) is surrounded by a hole wall of the central hole (11), a side wall of the rod part (20) and two opposite side surfaces (311); one of the two side surfaces (311) is parallel to the axis of the rod part (20), and the other side surface is an acute angle with the axis of the rod part (20);
one end of the connecting part (30) close to the first end of the rod part (20) is flush with the first end of the rod part (20); the other end of the connecting part (30) close to the second end of the rod part (20) is flush with the other end of the grinding part (10) close to the second end of the rod part (20);
the grinding part (10) is cylindrical; the rod part (20) is a round rod; the axis of the grinding part (10) coincides with the axis of the rod part (20).
2. The quick cooling grater according to claim 1, characterized in that the number of communication holes (31) is four, the four communication holes (31) being equally spaced and equally shaped.
3. A quick cooling grinding head according to claim 1, characterized in that the material of the grinding section (10) is diamond.
4. A grinding apparatus, characterized by comprising a quick cooling grinding head according to any one of claims 1-3.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910214420.2A CN109822451B (en) | 2019-03-20 | 2019-03-20 | Quick cooling grinding head and grinding device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910214420.2A CN109822451B (en) | 2019-03-20 | 2019-03-20 | Quick cooling grinding head and grinding device |
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| Publication Number | Publication Date |
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| CN109822451A CN109822451A (en) | 2019-05-31 |
| CN109822451B true CN109822451B (en) | 2023-10-27 |
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| CN201910214420.2A Active CN109822451B (en) | 2019-03-20 | 2019-03-20 | Quick cooling grinding head and grinding device |
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| CN (1) | CN109822451B (en) |
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| CN109822451A (en) | 2019-05-31 |
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