CN212976854U - Cylinder sleeve processing drill bit - Google Patents
Cylinder sleeve processing drill bit Download PDFInfo
- Publication number
- CN212976854U CN212976854U CN202021821832.7U CN202021821832U CN212976854U CN 212976854 U CN212976854 U CN 212976854U CN 202021821832 U CN202021821832 U CN 202021821832U CN 212976854 U CN212976854 U CN 212976854U
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- drill bit
- hole
- diameter
- processing
- cylinder liner
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Abstract
The utility model discloses a cylinder liner processing drill bit, including the drill bit body that is used for processing the product, the drill bit body include drill bit portion and handle of a knife, the product in be equipped with first hole, second hole and third hole in proper order, drill bit portion be equipped with the first drill bit that is used for processing first hole, the second drill bit that is used for processing the second hole and be used for processing the third drill bit in third hole in proper order from the one end of keeping away from the handle of a knife and the one end of nearly handle of a knife, the diameter of second drill bit be greater than the diameter of first drill bit and the diameter of second drill bit is less than the diameter of third drill bit, the utility model provides a cylinder liner processing drill bit with low costs and efficient.
Description
Technical Field
The utility model relates to a spare part processing technology field especially relates to a cylinder liner processing drill bit.
Background
The cylinder liner is just called for short for the cylinder jacket, it inlays in the cylinder of cylinder body, constitute the combustion chamber jointly with piston and cylinder cap, as shown in fig. 2, there are first hole A, second hole B and third hole C in the cylinder liner inside, first hole A, second hole B and third hole C communicate in proper order, first hole A, second hole B and third hole C diameter increase in proper order, these three hole required precision are high, need process alone, according to prior art, process these three holes, need utilize three drill bit processing thrice, and is with high costs, and is with low efficiency.
SUMMERY OF THE UTILITY MODEL
The utility model discloses the technical problem that will solve is: the defects of the prior art are overcome, and the cylinder sleeve processing drill bit is low in cost and high in efficiency.
The utility model adopts the technical proposal that: the utility model provides a cylinder liner processing drill bit, is including the drill bit body that is used for processing the product, the drill bit body include drill bit portion and handle of a knife, the product in be equipped with first hole, second hole and third hole in proper order, drill bit portion be equipped with the first drill bit that is used for processing the first hole in proper order, be used for processing the second drill bit in second hole and be used for processing the third drill bit in third hole from the one end of keeping away from the handle of a knife and the one end of nearly handle of a knife, the diameter of second drill bit be greater than the diameter of first drill bit and the diameter of second drill bit is less than the diameter of third drill bit, first drill bit, second drill bit and third drill bit integrated into one piece.
After the structure more than adopting, compared with the prior art, the utility model has the following advantage: be equipped with the first drill bit that is used for processing the first hole in proper order in drill bit portion, the third drill bit that is used for processing the second drill bit in second hole and is used for processing the third hole, utilize a drill bit to process first hole simultaneously, second hole and third hole are processed, and is with low costs, and is efficient, can guarantee first hole, the concentricity of second hole and third hole, first drill bit can be guaranteed to second drill bit and third drill bit integrated into one piece, the concentricity of second drill bit and third drill bit more can guarantee first hole, the concentricity of second hole and third hole.
Preferably, the outer surface of the drill bit part is provided with at least one spiral groove along the axial direction of the drill bit part, and the two sides of the spiral groove are cutting blades, so that drilling is facilitated.
Preferably, the number of the spiral grooves is two, so that the strength is high and the effect is good.
Preferably, the drill bit part is a tungsten steel twist drill bit and has high strength.
Preferably, the spiral angle of the spiral groove is 15-45 degrees, and the cutting effect is good.
Preferably, the spiral angle of the spiral groove is 30 degrees, and the cutting effect is optimal.
Preferably, the spiral groove extends to the outer surface of the tool shank 4 to form a chip removal groove, so that chip removal is facilitated.
Preferably, a fourth hole is formed in the product, the diameter of the fourth hole is larger than that of the third hole, the third hole is located between the second hole and the fourth hole, the diameter of the handle is larger than that of the third hole, the diameter of the handle is smaller than or equal to that of the fourth hole, other structures in the product are not damaged in the machining process, and the reliability is high.
Preferably, the first drill bit and the second drill bit and the third drill bit are in transition through the conical surfaces, so that the spiral groove and the cutting blade are convenient to arrange, the cutting blade and the spiral groove are integrally arranged at the drill bit part, the cutting blade is high in strength, not easy to wear and long in service life.
Drawings
FIG. 1 is a front view of the cylinder liner processing drill of the present invention;
FIG. 2 is a front cross-sectional view of a cylinder liner processing drill bit product of the present invention;
fig. 3 is an enlarged schematic view of E in fig. 2.
The drilling tool comprises a drilling head, a product, a drilling bit body, a drilling head part, a cutter handle, a first drilling bit, a second drilling bit, a cutter handle, a third drilling bit, a first hole, a second hole, a third hole, a fourth hole, a C hole and a fourth hole.
Detailed Description
The present invention will be further described with reference to the accompanying drawings and the following detailed description.
As shown in the figures, the utility model provides a cylinder liner processing drill bit, including the drill bit body 2 that is used for processing product 1, the drill bit body 2 include drill bit portion 3 and handle of a knife 4, product 1 in be equipped with first hole A, second hole B and third hole C in proper order, drill bit portion 3 from the one end of keeping away from handle of a knife 4 and the one end of nearly handle of a knife 4 be equipped with first drill bit 5 for processing first hole A in proper order, be used for processing second hole B second drill bit 6 and be used for processing third hole C third drill bit 7, the diameter of second drill bit 6 be greater than the diameter of first drill bit 5 and the diameter of second drill bit 6 be less than the diameter of third drill bit 7, first drill bit 5, second drill bit 6 and third drill bit 7 integrated into one piece, the utility model has the advantages that be equipped with first drill bit 5 for processing first hole A in proper order, be used for processing second hole B second drill bit 6 and be used for processing third hole C third drill bit 7, utilize a drill bit to process first hole A, second hole B and third hole C simultaneously, with low costs, efficient can guarantee the concentricity of first hole A, second hole B and third hole C, and first drill bit 5, second drill bit 6 and third drill bit 7 integrated into one piece can guarantee the concentricity of first drill bit 5, second drill bit 6 and third drill bit 7 and more can guarantee the concentricity of first hole A, second hole B and third hole C.
The outer surface of the drill bit part 3 is provided with at least one spiral groove along the axial direction of the drill bit part 3, the two sides of the spiral groove are cutting blades, so that drilling is facilitated, and the spiral groove and the chip discharge groove are not shown in fig. 1.
The number of the spiral grooves is two, the strength is high, and the effect is good.
The drill bit part 3 is a tungsten steel twist drill bit and has high strength.
The spiral angle of the spiral groove is 15-45 degrees, and the cutting effect is good.
The spiral angle of the spiral groove is 30 degrees, and the cutting effect is optimal.
The spiral groove extends to the outer surface of the cutter handle 4 to form a chip removal groove, so that chip removal is facilitated.
Product 1 in be equipped with fourth hole D, the diameter of fourth hole D be greater than third hole C's diameter, third hole C be located between second hole B and the fourth hole D, the diameter of handle of a knife 4 be greater than third hole C's diameter and handle of a knife 4 the diameter be less than or equal to fourth hole D's diameter, guarantee not destroy other structures of product 1 inside when processing, the reliability is high.
First drill bit 5 and second drill bit 6 between and second drill bit 6 and third drill bit 7 between pass through the conical surface transition, be convenient for set up helicla flute and cutting edge for cutting edge and helicla flute wholly set up at the drill bit portion, cutting edge's intensity is high, is difficult to wear, long service life.
Particularly, the utility model discloses a principle is equipped with the first drill bit 5 that is used for processing first hole A in proper order in drill bit portion 3, a third drill bit 7 that is used for processing second hole B's second drill bit 6 and is used for processing third hole C, utilize a drill bit to process first hole A simultaneously, second hole B and third hole C, and is with low costs, and is efficient, can guarantee first hole A, the concentricity of second hole B and third hole C, first drill bit 5, second drill bit 6 and third drill bit 7 integrated into one piece can guarantee first drill bit 5, the concentricity of first hole A, second hole B and third hole C more can be guaranteed to the concentricity of second drill bit 6 and third drill bit 7.
The first hole a is machined and the second hole B and the third hole C are also machined at the same time.
The cylinder sleeve is machined, and other positions in the cylinder sleeve are machined in advance.
The holes at the right end of the cylinder sleeve are all larger than the diameters of the first hole A, the second hole B and the third hole C, and the drill bit part 3 enters from the right end of the cylinder sleeve to process the cylinder sleeve.
The connection can be dismantled to prior art's hierarchical drill bit, and the drill bit can produce the skew between the drill bit at different levels when work like this, influences the machining precision greatly, simultaneously because the drill bit is hierarchical, and the cutting blade between the drill bit at different levels is divided, that is to say the cutting blade is the segmentation, and cutting blade intensity is low, and the drill bit is worn and torn easily, is different from prior art's hierarchical drill bit, the utility model discloses a multistage drill bit is integrated into one piece, utilizes same cutting blade to process first hole A, second hole B and third hole C, and intensity is high, and the cutting precision is high.
While the above is directed to the preferred embodiment of the present invention, it is not intended that it be limited, except as by the appended claims. The present invention is not limited to the above embodiments, and the specific structure thereof allows for changes, all the changes made within the protection scope of the independent claims of the present invention are within the protection scope of the present invention.
Claims (9)
1. The utility model provides a cylinder liner processing drill bit, is including drill bit body (2) that are used for processing product (1), drill bit body (2) including drill bit portion (3) and handle of a knife (4), product (1) in be equipped with first hole (A), second hole (B) and third hole (C) in proper order, its characterized in that: the drill bit part (3) is sequentially provided with a first drill bit (5) used for machining a first hole (A), a second drill bit (6) used for machining a second hole (B) and a third drill bit (7) used for machining a third hole (C) from one end far away from the cutter handle (4) and one end near the cutter handle (4), the diameter of the second drill bit (6) is larger than that of the first drill bit (5), the diameter of the second drill bit (6) is smaller than that of the third drill bit (7), and the first drill bit (5), the second drill bit (6) and the third drill bit (7) are integrally formed.
2. The cylinder liner processing drill bit of claim 1, wherein: the outer surface of the drill bit part (3) is provided with at least one spiral groove along the axial direction of the drill bit part (3), and cutting blades are arranged on two sides of the spiral groove.
3. The cylinder liner processing drill bit of claim 2, wherein: the number of the spiral grooves is two.
4. The cylinder liner processing drill bit of claim 2, wherein: the drill bit part (3) is a tungsten steel twist drill.
5. The cylinder liner processing drill bit of claim 2, wherein: the spiral angle of the spiral groove is 15-45 degrees.
6. The cylinder liner processing drill bit of claim 5, wherein: the spiral angle of the spiral groove is 30 degrees.
7. The cylinder liner processing drill bit of claim 2, wherein: the spiral groove extends to the outer surface of the cutter handle (4) to form a chip groove.
8. The cylinder liner processing drill bit of claim 1, wherein: product (1) in be equipped with fourth hole (D), the diameter of fourth hole (D) be greater than the diameter of third hole (C), third hole (C) be located between second hole (B) and fourth hole (D), the diameter of handle of a knife (4) be greater than the diameter of third hole (C) and the diameter of handle of a knife (4) be less than or equal to the diameter of fourth hole (D).
9. The cylinder liner processing drill bit of claim 1, wherein: the first drill bit (5)
And the second drill bit (6) and the third drill bit (7) are transited through conical surfaces.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021821832.7U CN212976854U (en) | 2020-08-27 | 2020-08-27 | Cylinder sleeve processing drill bit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021821832.7U CN212976854U (en) | 2020-08-27 | 2020-08-27 | Cylinder sleeve processing drill bit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212976854U true CN212976854U (en) | 2021-04-16 |
Family
ID=75435244
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021821832.7U Active CN212976854U (en) | 2020-08-27 | 2020-08-27 | Cylinder sleeve processing drill bit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212976854U (en) |
-
2020
- 2020-08-27 CN CN202021821832.7U patent/CN212976854U/en active Active
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