CN107116482B - Novel high-precision ultrahigh-pressure water cutting head - Google Patents
Novel high-precision ultrahigh-pressure water cutting head Download PDFInfo
- Publication number
- CN107116482B CN107116482B CN201710468706.4A CN201710468706A CN107116482B CN 107116482 B CN107116482 B CN 107116482B CN 201710468706 A CN201710468706 A CN 201710468706A CN 107116482 B CN107116482 B CN 107116482B
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- Prior art keywords
- sand
- cylinder
- chuck
- pressure water
- nozzle body
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24C—ABRASIVE OR RELATED BLASTING WITH PARTICULATE MATERIAL
- B24C5/00—Devices or accessories for generating abrasive blasts
- B24C5/02—Blast guns, e.g. for generating high velocity abrasive fluid jets for cutting materials
- B24C5/04—Nozzles therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24C—ABRASIVE OR RELATED BLASTING WITH PARTICULATE MATERIAL
- B24C1/00—Methods for use of abrasive blasting for producing particular effects; Use of auxiliary equipment in connection with such methods
- B24C1/04—Methods for use of abrasive blasting for producing particular effects; Use of auxiliary equipment in connection with such methods for treating only selected parts of a surface, e.g. for carving stone or glass
- B24C1/045—Methods for use of abrasive blasting for producing particular effects; Use of auxiliary equipment in connection with such methods for treating only selected parts of a surface, e.g. for carving stone or glass for cutting
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24C—ABRASIVE OR RELATED BLASTING WITH PARTICULATE MATERIAL
- B24C5/00—Devices or accessories for generating abrasive blasts
- B24C5/02—Blast guns, e.g. for generating high velocity abrasive fluid jets for cutting materials
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
Abstract
The invention discloses a novel high-precision ultrahigh-pressure water cutting head, which comprises a nozzle body, a water nozzle, a sand mixing chamber, a sand spraying pipe, a sand inlet pipe and a high-pressure water switch, wherein a spring chuck is arranged in an inner cavity at the lower end of the nozzle body, the spring chuck comprises a hollow cylinder and a hollow conical head arranged at the lower end of the cylinder, one end of the cylinder, which is far away from the conical head, is matched and nested with the inner cavity, and the outer wall of the cylinder is fixedly connected with the nozzle body through a chuck compression nut; the water nozzle, the sand mixing chamber and the sand spraying pipe are sequentially sleeved in the spring chuck in a matched manner, and the sand spraying pipe extends out of the spring chuck; the sand spraying pipe pressing nut comprises a cylindrical end in threaded connection with the cylinder and a conical end in pressing fit with the conical head. Which can reduce the position variation of the sand jet during the wearing part replacement.
Description
Technical Field
The invention relates to a water cutting machine, in particular to a novel high-precision ultrahigh-pressure water cutting head.
Background
The ultrahigh pressure water cutting head is an important part of the water cutting machine, and is used for converting the pressure energy of high pressure water into the kinetic energy of high-speed water jet flow to cut and process workpieces made of various materials. In the cutting head part: the water nozzle, the sand mixing chamber and the sand spray pipe all belong to vulnerable parts and need to be replaced periodically. Only the position of the sand spray pipe of the cutting head is unchanged in the process of replacing the vulnerable part, the cutting machining precision of the cutting head can be guaranteed. In the existing cutting head structure, the nozzle body is connected with the connecting pipe through threads; the connecting pipe is also connected with the high-pressure water switch through threads, when the water nozzle and the sand mixing chamber are replaced, the threaded connection between the nozzle body and the connecting pipe is required to be removed, and due to the existence of a threaded gap, the cutting head with the structure cannot ensure that the position of the sand spray pipe is unchanged when a vulnerable part is replaced.
The high-precision five-axis water cutting machine is mainly used for precisely cutting workpieces with various shapes, and the precision of the cutting head gesture control device is the basis for guaranteeing the cutting machining precision of the five-axis water cutting machine. In the five-axis water cutting machine, the center of the cutting head is programmed, and when the position of the sand spray pipe changes, the accuracy of the gesture control device of the cutting head is directly affected. Therefore, in the five-axis water cutting machine, it is particularly important to ensure that the position of the sand jet pipe is unchanged in the process of replacing the vulnerable part.
Disclosure of Invention
The invention aims to provide a novel high-precision ultrahigh-pressure water cutting head which can reduce the position change of a sand spray pipe in the process of replacing a vulnerable part.
The technical aim of the invention is realized by the following technical scheme:
the novel high-precision ultrahigh-pressure water cutting head comprises a nozzle body, a water nozzle, a sand mixing chamber, a sand spraying pipe, a sand inlet pipe and a high-pressure water switch, wherein a spring chuck is arranged in an inner cavity at the lower end of the nozzle body, the spring chuck comprises a hollow cylinder and a hollow conical head arranged at the lower end of the cylinder, one end of the cylinder, far away from the conical head, is matched and nested with the inner cavity of the nozzle body, and the outer wall of the cylinder is fixedly connected with the nozzle body through a chuck compression nut; the water nozzle, the sand mixing chamber and the sand spraying pipe are sequentially sleeved in the spring chuck in a matched manner, and the sand spraying pipe extends out of the spring chuck; the sand spraying pipe pressing nut comprises a cylindrical end in threaded connection with the cylinder and a conical end in pressing fit with the conical head.
Through the scheme, the sand spraying pipe is in nested fit with the spring chuck, the spring chuck and the inner cavity of the nozzle body, so that coaxiality between the sand spraying pipe and the nozzle body is ensured, the spring chuck and the nozzle body are fixed through the chuck pressing nut, and the position accuracy between the spring chuck and the nozzle body is ensured; the sand spray pipe is tightly pressed on the cone head, the cone head is tightly pressed on the inner conical surface of the cone end of the sand spray pipe, and a small amount of deformation is generated in the process of screwing the sand spray pipe and the spring chuck screw thread, so that the cone head and the sand spray pipe which is matched and arranged in the cone head form tight matched connection, the sand spray pipe is fixed, the position accuracy of the sand spray pipe is improved, and the position change of the sand spray pipe in the process of replacing a vulnerable part is reduced.
Further, a shaft shoulder is arranged on the side wall of the cylinder, one end of the chuck compaction nut is clamped with the shaft shoulder, and the other end of the chuck compaction nut is in threaded connection with the nozzle body; when the chuck compacting nut compacts the nozzle body and is fixedly connected with the nozzle body, the water nozzle is abutted against the inner cavity of the nozzle body, and a gap exists between the end face of the spring chuck and the inner cavity of the nozzle body.
Through above-mentioned scheme, the terminal surface of water nozzle and inner chamber is closely contradicted, then compresses tightly it with the collet to compress tightly the nut with collet and the shower nozzle body is fixed through the collet, has improved the position accuracy between water nozzle, the sand mixing room and the shower nozzle body, and then just also improved the position accuracy with the sand jet pipe of sand mixing room direct contact. The gap between the end face of the collet and the interior cavity allows for benign contact between the water jet and the interior cavity.
Furthermore, a plurality of necking grooves are uniformly distributed in the circumferential direction of the conical head, and the necking grooves are arranged along the axial direction of the conical head.
Through the scheme, the setting of throat groove makes sand-blast pipe compress tightly the in-process that the nut was screwed, and the conical head can inwards take place deformation under the extrusion of sand-blast pipe compress tightly the nut to compress tightly the sand-blast pipe.
Further, a spanner groove is formed in the outer wall of the cylindrical end.
Through the scheme, the wrench groove is convenient for screwing the sand spraying pipe through the wrench to compress the nut, and the clamping force of the spring chuck on the sand spraying pipe is guaranteed.
Further, the conical head is provided with a cylindrical surface with the diameter smaller than that of the cylinder close to the side wall of one end of the cylinder.
Through the scheme, the arrangement of the cylindrical surface is used for avoiding interference between the inner diameter of the screw thread of the sand jet pipe compression nut and the collet chuck in the installation process.
Further, a tool retracting groove is formed at the joint of the conical head and the cylinder.
Through the scheme, the cutter withdrawal groove can reduce the wall thickness of the spring chuck, so that the conical end of the spring joint is deformed when the sand spraying pipe is screwed to compress the screw cap.
Further, the side wall of the upper end of the spring clamp is provided with a mounting hole for inserting the sand inlet pipe.
Through the scheme, the sand inlet pipe of Kong Fangbian is installed.
In summary, the invention has the following beneficial effects:
the sand spray pipe is in nested fit with the spring chuck, the spring chuck is in nested fit with the inner cavity of the nozzle body, so that coaxiality between the sand spray pipe and the nozzle body is guaranteed, the spring chuck is fixed with the nozzle body through the chuck pressing nut, and therefore position accuracy between the spring chuck and the nozzle body is guaranteed; the sand jet pipe compresses tightly outside spiral shell cap cover and the conical head to the internal conical surface of its conical end compresses tightly the conical head, and at its in-process of screwing with the collet screw thread, the conical end will oppress the conical head and inwards produce a small amount of deformation, thereby makes and forms inseparable cooperation connection between the sand jet pipe that conical head and its inside cooperation set up, fixes the sand jet pipe, thereby improves the position accuracy of sand jet pipe, reduces its position variation in wearing part change in-process.
Drawings
Fig. 1 is a schematic structural view of the present embodiment;
FIG. 2 is an enlarged view of FIG. 1 at A;
fig. 3 is a schematic diagram showing a structure of a necking groove in the present embodiment.
In the figure, 1, a nozzle body; 11. a high-pressure water switch; 111. a water switch valve pad; 12. an inner cavity; 2. a spring chuck; 21. a cylinder; 211. a mounting hole; 212. a shaft shoulder; 213. the chuck compresses the nut; 214. a gap; 22. a conical head; 221. a cylindrical surface; 222. a tool retracting groove; 223. a necking groove; 3. a water nozzle; 4. a sand mixing chamber; 41. a sand inlet pipe; 5. a sand jet pipe; 6. the sand spray pipe compresses the screw cap; 61. a guide cylinder; 62. a conical end; 63. a cylindrical end; 631. a spanner groove.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
The utility model provides a novel high accuracy super high pressure water cutting head, is shown as fig. 1 and 2, including the shower nozzle body 1, the upper end of the shower nozzle body 1 in the figure is connected with high pressure water switch 11 through water switch valve pad 111 to establish shower nozzle body 1 gland nut at the outer wall cover of the shower nozzle body 1 and connect fixed shower nozzle body 1 and high pressure water switch 11.
The lower end of the spray head body 1 is provided with an inner cavity 12, a collet chuck 2 is arranged in the inner cavity 12, and the collet chuck 2 comprises a hollow cylinder 21 which is matched and nested with the inner cavity 12 and a hollow conical head 22 connected with the lower end of the cylinder 21. The conical head 22 is provided with a cylindrical surface 221 with the diameter smaller than that of the cylinder 21 near one end side wall of the cylinder 21, the joint of the conical head 22 and the cylinder 21 is provided with a clearance groove 222, four necking grooves 223 are uniformly distributed in the circumferential direction of the conical head 22, and the necking grooves 223 are arranged along the axial direction of the conical head 22 and extend from the end part to the clearance groove 222 so as to facilitate inward deformation of the conical head 22 after being stressed.
The inside of the cylinder 21 is sequentially matched and nested with a water nozzle 3, a sand mixing chamber 4 and a sand spraying pipe 5 from top to bottom, and the water nozzle 3 protrudes out of the end face of the collet chuck 2. Mounting holes 211 are also provided in the side wall of the cylinder 21 for inserting sand feed pipes 41 which are required to communicate with the sand mixing chamber 4. The lateral wall of the cylinder 21 is provided with a shaft shoulder 212, a clamping sleeve outside the shaft shoulder 212 is provided with a clamping head pressing nut 213, the clamping head pressing nut is screwed and fixed with the spray head body 1 in a threaded manner, and when the clamping head pressing nut 213 presses the spray head body 1 to be tightly connected with the spray head body 1, the water nozzle 3 is abutted against the inner cavity 12 of the spray head body 1, and a gap 214 is reserved between the end face of the spring clamping head 2 and the inner cavity 12 of the spray head body 1.
The lower end of the sand jet 5 protrudes outside the conical head 22. A sand-blast pipe compression nut 6 is sleeved outside the conical head 22, the middle part of the sand-blast pipe compression nut 6 is a conical end 62, and the inner conical surface of the conical end 62 is tightly attached to the conical head 22; the upper part is a cylindrical end 63 which is in threaded connection with the collet chuck 2; the lower part of the sand-blast pipe pressing nut 6 is cylindrical, and the inner diameter of the lower part is slightly larger than the outer diameter of the sand-blast pipe 5. A key slot 631 is provided on the outer wall of the cylindrical end 63.
The specific implementation is as follows:
the sand mixing chamber 4 and the water nozzle 3 are sequentially inserted into the collet chuck 2 from the upper end, then the collet chuck 2 is inserted into the inner cavity 12 of the nozzle body 1, and the sand inlet pipe 41 is inserted into the mounting hole 211, so that the sand inlet pipe 41 is communicated with the sand mixing chamber 4; the collet chuck 2 and the head body 1 are then fixed by the collet press nut 213. The water nozzle 3 protrudes out of the end face of the spring chuck 2, so that the water nozzle can be tightly abutted against the end face of the inner cavity 12, the position precision among the water nozzle 3, the sand mixing chamber 4 and the nozzle body 1 is improved, and the position precision of the sand spraying pipe 5 in direct contact with the sand mixing chamber 4 is further improved.
Next, the sand jet 5 is inserted into the collet chuck 2 from below, and then the sand jet compression nut 6 is sleeved and the sand jet compression nut 6 and the collet chuck 2 are screwed by a wrench. The conical end 62 of the sand jet compacting nut 6 compacts the conical head 22, and in the process of screwing the sand jet compacting nut with the screw thread of the collet chuck 2, the conical end 62 can press the conical head 22 to generate a small amount of deformation inwards, so that a tight fit connection is formed between the conical head 22 and the sand jet 5 which is arranged in the conical head in a fit manner, the sand jet 5 is fixed, the position accuracy of the sand jet 5 is improved, and the position change of the sand jet in the process of replacing a wearing part is reduced.
The present embodiment is only for explanation of the present invention and is not to be construed as limiting the present invention, and modifications to the present embodiment, which may not creatively contribute to the present invention as required by those skilled in the art after reading the present specification, are all protected by patent laws within the scope of claims of the present invention.
Claims (6)
1. The utility model provides a novel high accuracy super high pressure water cutting head, includes shower nozzle body (1), water nozzle (3), muddy sand room (4), sand spraying pipe (5), advances sand pipe (41) and high-pressure water switch (11), characterized by: a spring chuck (2) is arranged in an inner cavity (12) at the lower end of the spray head body (1), the spring chuck (2) comprises a hollow cylinder (21) and a hollow conical head (22) arranged at the lower end of the cylinder (21), one end of the cylinder (21) far away from the conical head (22) is matched and nested with the inner cavity (12) of the spray head body (1), and the outer wall of the cylinder is fixedly connected with the spray head body (1) through a chuck compression nut (213); the water nozzle (3), the sand mixing chamber (4) and the sand spraying pipe (5) are sequentially sleeved in the spring chuck (2) in a matched mode, and the sand spraying pipe (5) extends out of the spring chuck (2); a sand spray pipe compaction nut (6) is sleeved outside the conical head (22), and the sand spray pipe compaction nut (6) comprises a cylindrical end (63) in threaded connection with the cylinder (21) and a conical end (62) in compaction fit with the conical head (22);
a shaft shoulder (212) is arranged on the side wall of the cylinder (21), one end of the chuck pressing nut (213) is clamped with the shaft shoulder (212), and the other end of the chuck pressing nut is in threaded connection with the nozzle body (1); when the chuck compacting nut (213) compacts the nozzle body (1) and is in fastening connection with the nozzle body (1), the water nozzle (3) is in contact with the inner cavity (12) of the nozzle body (1), and a gap (214) is reserved between the end face of the spring chuck (2) and the inner cavity (12) of the nozzle body (1).
2. The novel high-precision ultrahigh-pressure water cutting head according to claim 1, which is characterized in that: the conical head (22) is circumferentially and uniformly provided with a plurality of necking grooves (223), and the necking grooves (223) are arranged along the axial direction of the conical head (22).
3. The novel high-precision ultrahigh-pressure water cutting head according to claim 1, which is characterized in that: the outer wall of the cylindrical end (63) is provided with a spanner groove (631).
4. The novel high-precision ultrahigh-pressure water cutting head according to claim 1, which is characterized in that: the conical head (22) is provided with a cylindrical surface (221) with the diameter smaller than that of the cylinder (21) near the side wall of one end of the cylinder (21).
5. The novel high-precision ultrahigh-pressure water cutting head according to claim 1, which is characterized in that: the joint of the conical head (22) and the cylinder (21) is provided with a tool retracting groove (222).
6. The novel high-precision ultrahigh-pressure water cutting head according to claim 1, which is characterized in that: the side wall of the upper end of the spring chuck (2) is provided with a mounting hole (211) for inserting a sand inlet pipe (41).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710468706.4A CN107116482B (en) | 2017-06-20 | 2017-06-20 | Novel high-precision ultrahigh-pressure water cutting head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710468706.4A CN107116482B (en) | 2017-06-20 | 2017-06-20 | Novel high-precision ultrahigh-pressure water cutting head |
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| Publication Number | Publication Date |
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| CN107116482A CN107116482A (en) | 2017-09-01 |
| CN107116482B true CN107116482B (en) | 2023-06-09 |
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| CN201710468706.4A Active CN107116482B (en) | 2017-06-20 | 2017-06-20 | Novel high-precision ultrahigh-pressure water cutting head |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107671744A (en) * | 2017-10-16 | 2018-02-09 | 姚光纯 | A kind of Water Cutting material, the water cutting head and its application method that water diffusion can be reduced, improve high pressure waterjet efficiency |
| CN108581855A (en) * | 2018-07-11 | 2018-09-28 | 江西新瑞泰零部件有限公司 | A kind of sand blasting unit with turning function |
| CN111745552B (en) * | 2020-07-06 | 2022-03-15 | 拉思丁科技(深圳)有限公司 | Abrasive water cutting diamond tool bit capable of being rotatably installed by 360 degrees |
| CN113369455B (en) * | 2021-05-27 | 2022-07-12 | 上海恩耀机电有限公司 | Machining process and cutting system of die casting |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11123660A (en) * | 1997-10-23 | 1999-05-11 | Toyo Glass Kikai Kk | Hydro-cutting device |
| TW564201B (en) * | 2001-08-27 | 2003-12-01 | Flow Int Corp | Apparatus for generating a high-pressure fluid jet |
| TW200916265A (en) * | 2007-03-09 | 2009-04-16 | Flow Int Corp | Fluid system and method for thin kerf cutting and in-situ recycling |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US4817874A (en) * | 1985-10-31 | 1989-04-04 | Flow Systems, Inc. | Nozzle attachment for abrasive fluid-jet cutting systems |
| CN101362315A (en) * | 2007-08-09 | 2009-02-11 | 江苏金润科技发展有限公司 | Nozzle apparatus for jet cutting by abrasive water |
| CN101670558B (en) * | 2009-09-28 | 2010-12-29 | 南京大地水刀股份有限公司 | Equal negative pressure bidirectional sand inlet water cutting head |
| CN102225535A (en) * | 2011-06-16 | 2011-10-26 | 西华大学 | Quasi-rectangular abrasive nozzle for abrasive water jet |
| CN202318027U (en) * | 2011-11-04 | 2012-07-11 | 西安东风仪表厂 | Abrasive material water jet cutting spray head |
| CN203156856U (en) * | 2013-01-31 | 2013-08-28 | 谭军军 | Water jet scalpel four-shaft sprayer |
| CN203371394U (en) * | 2013-04-10 | 2014-01-01 | 长沙矿冶研究院有限责任公司 | Detachable combined type high pressure water sandblast nozzle |
| CN203358544U (en) * | 2013-05-21 | 2013-12-25 | 钱建统 | High-pressure hanging and rotating arm and high-pressure sprayer thereof |
| CN104525414B (en) * | 2015-01-08 | 2017-03-22 | 山东大学 | Device and method for online cleaning and coating of minitype complex part |
| CN205605209U (en) * | 2016-05-05 | 2016-09-28 | 湖南科技大学 | Multi -functional coal seam scour protection efflux drilling joint -cutting shower nozzle |
| CN207014208U (en) * | 2017-06-20 | 2018-02-16 | 南京大地水刀股份有限公司 | A kind of high-precision high-pressure water cutting head |
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2017
- 2017-06-20 CN CN201710468706.4A patent/CN107116482B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11123660A (en) * | 1997-10-23 | 1999-05-11 | Toyo Glass Kikai Kk | Hydro-cutting device |
| TW564201B (en) * | 2001-08-27 | 2003-12-01 | Flow Int Corp | Apparatus for generating a high-pressure fluid jet |
| TW200916265A (en) * | 2007-03-09 | 2009-04-16 | Flow Int Corp | Fluid system and method for thin kerf cutting and in-situ recycling |
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| Publication number | Publication date |
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| CN107116482A (en) | 2017-09-01 |
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