CN219837624U - Valve core hole precision machining cutter - Google Patents
Valve core hole precision machining cutter Download PDFInfo
- Publication number
- CN219837624U CN219837624U CN202223378452.2U CN202223378452U CN219837624U CN 219837624 U CN219837624 U CN 219837624U CN 202223378452 U CN202223378452 U CN 202223378452U CN 219837624 U CN219837624 U CN 219837624U
- Authority
- CN
- China
- Prior art keywords
- cutting section
- valve core
- machining
- core hole
- cutter
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Links
- 238000003754 machining Methods 0.000 title claims abstract description 21
- 238000005520 cutting process Methods 0.000 claims abstract description 49
- 229910003460 diamond Inorganic materials 0.000 claims abstract description 17
- 239000010432 diamond Substances 0.000 claims abstract description 17
- 238000001816 cooling Methods 0.000 claims description 6
- 239000013078 crystal Substances 0.000 claims description 4
- 238000009713 electroplating Methods 0.000 claims description 4
- 239000004576 sand Substances 0.000 claims description 4
- 238000004519 manufacturing process Methods 0.000 abstract description 6
- 238000010923 batch production Methods 0.000 abstract description 4
- 238000000034 method Methods 0.000 description 3
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000000110 cooling liquid Substances 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
Landscapes
- Polishing Bodies And Polishing Tools (AREA)
- Milling, Broaching, Filing, Reaming, And Others (AREA)
Abstract
The utility model discloses a valve core hole precision machining cutter which comprises a cutter head and a cutter handle, wherein the cutter head and the cutter handle are of an integrated structure, the cutter head comprises a front reference head and a cutting part, a spiral groove is formed in the surface of the cutting part, an annular groove is formed in the cutting part on one side of the front reference head, the annular groove divides the cutting part into a first step cutting section and a second step cutting section, and diamond layers are arranged on the surfaces of the first step cutting section and the second step cutting section. The tool provided by the utility model adopts a stepped structure, and the machining process of the hydraulic valve core hole in the hydraulic valve can be finished only by reciprocating at most, and the honing quantity of about 0.03mm can be finished by one-step machining, so that the production efficiency is improved, the batch production can be realized under the condition of ensuring the machining precision, and meanwhile, the tool is directly used in a general machining center, and the input cost is reduced.
Description
Technical Field
The utility model relates to the technical field of metal cutting processing of hydraulic parts, in particular to a valve core hole precision processing cutter.
Background
The hydraulic valve core hole in the hydraulic valve has the highest precision requirement, which belongs to a very important factor in the hydraulic valve, so that the machining of the hydraulic valve core hole is required to be highly emphasized in the specific hydraulic valve machining, thereby ensuring the high precision of the hydraulic valve core hole.
The precision of the hydraulic valve core hole often reaches the cylindricity of 0.004mm, the diameter tolerance of 0.005mm and the roughness Ra of 0.4, and the reamer reaming process cannot stably meet the requirements in batches. In the traditional production, a special honing equipment person can use a plurality of reciprocating honing works at the moment, and although the final requirement can be met, a production line, corresponding auxiliary tools, detection tools, personnel and the like are required to be put into, so that the whole cost is high, and the efficiency is low.
Therefore, the utility model provides a new technical scheme for processing the hydraulic valve core hole in the hydraulic valve, improving the forming efficiency and reducing the production cost.
Disclosure of Invention
The utility model provides a precise machining tool for a valve core hole, which can finish grinding directly in a machining center, can finish machining only by reciprocating once, meets the requirement of the valve core hole on precision, can realize batch production and improves the production efficiency.
The utility model is realized by the following technical scheme:
the utility model provides a case hole precision machining cutter, includes tool bit and handle, tool bit and handle are integrated into one piece structure, the tool bit includes preceding reference head and cutting portion, the helicla flute has been seted up on the cutting portion surface of cutting portion, the ring channel has been seted up on the cutting portion of preceding reference head one side, the ring channel is divided into first ladder cutting section and second ladder cutting section with the cutting portion, and first ladder cutting section and second ladder cutting section surface all are equipped with the diamond layer.
Further, a plurality of inner cooling holes are uniformly distributed in the spiral groove.
Further, the diamond layer is formed by embedding single crystal diamond sand on the surfaces of the first step cutting section and the second step cutting section through electroplating.
The beneficial effects of the utility model are as follows: the tool provided by the utility model adopts a stepped structure, and the machining process of the hydraulic valve core hole in the hydraulic valve can be finished only by reciprocating at most, and the honing quantity of about 0.03mm can be finished by one-step machining, so that the production efficiency is improved, the batch production can be realized under the condition of ensuring the machining precision, and meanwhile, the tool is directly used in a general machining center, and the input cost is reduced.
Drawings
FIG. 1 is a schematic diagram of the structure of the present utility model;
fig. 2 is an enlarged view of a portion a in fig. 1.
The tool comprises a tool bit, a front reference head, a first step cutting section, a second step cutting section, a spiral groove, a diamond layer, an inner cooling hole, 107, an annular groove, 200 and a tool shank, wherein the tool bit, the front reference head, the first step cutting section, the second step cutting section, the spiral groove, the diamond layer, the inner cooling hole and the tool shank are arranged in sequence.
Description of the embodiments
The utility model is further described with reference to the following description of the drawings.
As shown in fig. 1-2, the valve core hole precision machining tool comprises a tool bit 100 and a tool handle 200, wherein the tool bit 100 and the tool handle 200 are of an integrated structure, the tool bit 100 comprises a front reference head 101 and a cutting part, a spiral groove 104 is formed in the surface of the cutting part, an annular groove 107 is formed in the cutting part on one side of the front reference head 101, the cutting part is divided into a first step cutting section 102 and a second step cutting section 103 by the annular groove 107, and diamond layers 105 are respectively arranged on the surfaces of the first step cutting section 102 and the second step cutting section 103. A plurality of inner cooling holes 106 are uniformly distributed in the spiral groove 104, and the diamond layer 105 is formed by embedding single crystal diamond sand on the surfaces of the first step cutting section and the second step cutting section through electroplating.
In the technical scheme, the front reference head 101 is arranged at the forefront end of a cutter and used for adjusting the overall precision of the cutter to ensure that the cutter is within 0.002mm, the first step cutting section 102 is used for finishing rough honing reaming, the second step cutting section 103 is used for finishing finish honing reaming, cooling liquid is sprayed out through inner cooling holes 106 distributed on the spiral grooves 104 during machining, the electroplated diamond layer 106 is cooled, cleaned and lubricated during cutting, the electroplated diamond layer 105 is used for embedding single crystal diamond sand on the surfaces of the first step cutting section 102 and the second step cutting section 103 by an electroplating method, the outer diameter grinding of the cutter is carried out through a diamond grinding wheel, the diameter size of the electroplated diamond layer 105 of the cutter is ensured, and machining precision and size requirements can be ensured when a positive cone is generated to ensure grinding of a valve core hole.
In this technical scheme, this cutter can directly use on general machining center, has reduced the cost input in existing processing mode, only need once to reciprocate simultaneously in to case hole course of working can accomplish, and can once process the completion to the honing volume about 0.03mm, and whole machining efficiency is high, guarantees that the product reaches cylindricity within 0.004mm, satisfies the diameter tolerance requirement within 0.005mm, and roughness is within Ra0.4 to can realize batch production.
Although the present utility model has been described with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described, or equivalents may be substituted for elements thereof, and any modifications, equivalents, improvements and changes may be made without departing from the spirit and principles of the present utility model.
Claims (3)
1. The utility model provides a case hole precision machining cutter, includes tool bit and handle of a knife, tool bit and handle of a knife are integrated into one piece structure, its characterized in that: the tool bit comprises a front reference head and a cutting part, wherein a spiral groove is formed in the surface of the cutting part, an annular groove is formed in the cutting part on one side of the front reference head, the cutting part is divided into a first step cutting section and a second step cutting section by the annular groove, and diamond layers are arranged on the surfaces of the first step cutting section and the second step cutting section.
2. The precision machining tool for the valve core hole according to claim 1, wherein: a plurality of inner cooling holes are uniformly distributed in the spiral groove.
3. The precision machining tool for the valve core hole according to claim 1, wherein: the diamond layer is formed by embedding single crystal diamond sand on the surfaces of the first step cutting section and the second step cutting section through electroplating.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223378452.2U CN219837624U (en) | 2022-12-16 | 2022-12-16 | Valve core hole precision machining cutter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223378452.2U CN219837624U (en) | 2022-12-16 | 2022-12-16 | Valve core hole precision machining cutter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219837624U true CN219837624U (en) | 2023-10-17 |
Family
ID=88297631
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223378452.2U Active CN219837624U (en) | 2022-12-16 | 2022-12-16 | Valve core hole precision machining cutter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219837624U (en) |
-
2022
- 2022-12-16 CN CN202223378452.2U patent/CN219837624U/en active Active
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