CN112475816A - Novel processing method for waist-shaped cylinder body of axial plunger pump - Google Patents
Novel processing method for waist-shaped cylinder body of axial plunger pump Download PDFInfo
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- CN112475816A CN112475816A CN202011359823.5A CN202011359823A CN112475816A CN 112475816 A CN112475816 A CN 112475816A CN 202011359823 A CN202011359823 A CN 202011359823A CN 112475816 A CN112475816 A CN 112475816A
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- waist
- cylinder body
- shaped
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- plunger pump
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
- F04B53/16—Casings; Cylinders; Cylinder liners or heads; Fluid connections
- F04B53/162—Adaptations of cylinders
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B7/00—Piston machines or pumps characterised by having positively-driven valving
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Pistons, Piston Rings, And Cylinders (AREA)
Abstract
The invention discloses a novel processing method of a cylinder waist shape of an axial plunger pump, which is characterized in that a cylinder waist shape blank is fixedly arranged on a CNC machine tool, drilling the cylinder body waist-shaped blank to obtain the positioning hole, then processing the waist-shaped groove on the cylinder body waist-shaped blank, reaming the waist-shaped groove to form a semi-conical waist-shaped groove to obtain a cylinder body waist-shaped semi-finished product, finally taking down the cylinder body waist-shaped semi-finished product from the CNC machine tool, and polishing and grinding the cylinder body waist-shaped semi-finished product to obtain a cylinder body waist-shaped finished product, wherein the mode of the semi-conical waist-shaped groove is favorable for the axial plunger pump to keep oil smooth under the high-speed and high-pressure working condition, so that the pumping emptying of the plunger pump is reduced, the risk of pulling off a column sliding component is reduced, and the problem of abrasion cavitation of an oil distribution surface is reduced, thereby solving the problem of easy abrasion cavitation of the oil distribution surface of the axial plunger pump.
Description
Technical Field
The invention relates to the technical field of plunger pumps, in particular to a novel processing method for a waist-shaped cylinder body of an axial plunger pump.
Background
The axial plunger pump is a swash plate type axial plunger pump which adopts an oil distribution disc to distribute oil, a cylinder body rotates and depends on variable head variables. The pump adopts the design of the optimal oil film thickness of hydrostatic balance, so that the cylinder body and the oil distribution disc, the piston shoes and the variable head run under pure liquid friction, and the pump has the advantages of simple structure, small volume, low noise, high efficiency, long service life, self-absorption capacity and the like, and the oil distribution surface of the conventional axial plunger pump is easy to abrade and cavitate.
Disclosure of Invention
The invention aims to provide a novel processing method for a waist-shaped cylinder body of an axial plunger pump, and aims to solve the problem that an oil distribution surface of the axial plunger pump is easy to wear and cavitate.
In order to achieve the purpose, the invention provides a novel processing method of a waist type cylinder body of an axial plunger pump, which comprises the following steps:
the method comprises the following steps: blanking the cylinder body waist shape to obtain a cylinder body waist shape blank;
step two: fixing the cylinder body waist-shaped blank on a CNC machine tool;
step three: drilling the waist-shaped blank of the cylinder body to obtain a positioning hole;
step four: processing a waist-shaped groove on the waist-shaped blank of the cylinder body;
step five: reaming the waist-shaped groove to form a semi-conical waist-shaped groove, so as to obtain a waist-shaped semi-finished product of the cylinder body;
step six: and taking the cylinder body waist-shaped semi-finished product down from the CNC machine tool, and polishing and grinding the cylinder body waist-shaped semi-finished product to obtain the cylinder body waist-shaped finished product.
And in the second step, the waist-shaped blank of the cylinder body is clamped through a three-jaw self-centering chuck.
In the third step, firstly, a drill cutter is adopted to drill the cylinder body waist-shaped blank, then the positioning hole is roughly turned through an inner hole cutter, and finally a boring cutter is used for finish turning, so that the positioning hole is obtained.
Wherein, the locating hole is in the shape of a tooth.
And in the fourth step, the positioning hole is used as a reference, the waist-shaped groove is processed on the waist-shaped blank of the cylinder body, and the waist-shaped groove is a cylinder with an arc shape.
And step five, reaming the waist-shaped groove by using a reamer so that part of the waist-shaped groove is conical to form the semi-conical waist-shaped groove.
And C, grinding the cylinder body waist-shaped blank before the step II.
The invention has the beneficial effects that: the cylinder body waist-shaped blank is fixedly installed on a CNC (computerized numerical control) machine tool, so that the cylinder body waist-shaped blank is drilled to obtain the positioning hole, then the cylinder body waist-shaped blank is processed into the waist-shaped groove, the waist-shaped groove is reamed, the waist-shaped groove is formed into a semi-conical waist-shaped groove, a cylinder body waist-shaped semi-finished product is obtained, finally the cylinder body waist-shaped semi-finished product is taken down from the CNC machine tool, the cylinder body waist-shaped semi-finished product is polished, and a cylinder body waist-shaped finished product is obtained.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a processing flow chart of the novel processing method of the waist type axial plunger pump cylinder body.
Fig. 2 is a schematic view of a cylinder kidney type structure of the present invention.
Fig. 3 is a partial cross-sectional view at a-a of fig. 2 of the present invention.
1-cylinder waist type finished product, 11-positioning hole and 12-semi-cone waist type groove.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention.
In the description of the present invention, it is to be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships illustrated in the drawings, and are used merely for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, are not to be construed as limiting the present invention. Further, in the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.
Referring to fig. 1 to 3, the present invention provides a technical solution: a novel processing method for a waist type cylinder body of an axial plunger pump specifically comprises the following steps:
s1: blanking the cylinder body waist shape to obtain a cylinder body waist shape blank;
s2: fixing the cylinder body waist-shaped blank on a CNC machine tool;
s3: drilling the waist-shaped blank of the cylinder body to obtain a positioning hole 11;
s4: processing a waist-shaped groove on the waist-shaped blank of the cylinder body;
s5: reaming the waist-shaped groove to form a semi-conical waist-shaped groove 12, so as to obtain a waist-shaped semi-finished product of the cylinder body;
s6: and taking the cylinder body waist-shaped semi-finished product down from the CNC machine tool, and polishing and grinding the cylinder body waist-shaped semi-finished product to obtain a cylinder body waist-shaped finished product 1.
In the embodiment, the cylinder body waist-shaped blank is blanked to obtain the cylinder body waist-shaped blank, the cylinder body waist-shaped blank is fixed on a CNC machine tool, so that the cylinder body waist-shaped blank is drilled to obtain the positioning hole 11, then the waist-shaped groove is processed on the cylinder body waist-shaped blank, and the waist-shaped groove is reamed, so that the waist-shaped groove forms a semi-conical waist-shaped groove 12 to obtain a cylinder body waist-shaped semi-finished product, finally the cylinder body waist-shaped semi-finished product is taken down from the CNC machine tool, and the cylinder body waist-shaped semi-finished product is polished to obtain a cylinder body waist-shaped finished product 1, the semi-conical waist-shaped groove is adopted to be beneficial for an axial plunger pump to keep smooth oil under high-speed and high-pressure working conditions, reduce the pumping hollow of the plunger pump, reduce the pull-off risk of a column sliding component, and reduce the problem of abrasion and cavitation, thereby solving the problem that the oil distribution surface of the axial plunger pump is easy to wear and erode.
Further, the cylinder body waist-shaped blank is clamped through a three-jaw self-centering chuck in the second step.
In this embodiment, the cylinder waist blank is clamped by a three-jaw self-centering chuck, so that the cylinder waist blank is fixedly mounted on the CNC machine tool.
Further, in the third step, a drill cutter is firstly adopted to drill the cylinder body waist-shaped blank, then an inner hole cutter is adopted to roughly turn the positioning hole 11, and finally a boring cutter is adopted to finish turning, so that the positioning hole 11 is obtained.
In this embodiment, the positioning hole 11 is obtained by continuously performing rough turning and finish turning after drilling the cylinder body waist-shaped blank, so as to ensure the machining precision of the positioning hole 11.
Further, the positioning hole 11 is in a tooth shape.
In the present embodiment, the positioning hole 11 has a tooth shape to facilitate the installation of the cylinder body waist.
Further, in the fourth step, the positioning hole 11 is used as a reference, and the waist-shaped groove is processed on the waist-shaped blank of the cylinder body, and is a cylinder with an arc shape.
In the present embodiment, the positioning hole 11 is used as a reference to process the waist-shaped groove, so as to position the waist-shaped groove, thereby facilitating the processing of the waist-shaped groove.
Further, in the fifth step, a reamer is used to ream the waist-shaped groove, so that part of the waist-shaped groove is tapered to form the semi-tapered waist-shaped groove 12.
In the present embodiment, both sides of the waist-shaped groove are reamed, so that the semi-conical waist-shaped groove 12 is obtained to enhance the self-priming performance of the axial plunger pump.
Further, before the second step, the cylinder waist-shaped blank is ground.
In the embodiment, the cylinder body waist-shaped blank is ground, so that the error value of the cylinder body waist-shaped blank is reduced, and the aesthetic effect of the cylinder body waist-shaped blank can be improved.
Furthermore, in the third step, the tolerance range of the positioning hole 11 is 0-0.009.
In the embodiment, the tolerance range of the positioning hole 11 is 0-0.009, so that a cylinder waist-shaped blank with small error is obtained.
Further, after the sixth step, the cylinder waist-shaped finished product 1 is subjected to ultrasonic cleaning.
In the present embodiment, the cylinder-waist-shaped product 1 is subjected to ultrasonic cleaning to remove impurities on the cylinder-waist-shaped product 1.
While the invention has been described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and detail may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (7)
1. The novel processing method of the waist type of the cylinder body of the axial plunger pump is characterized by comprising the following steps:
the method comprises the following steps: blanking the cylinder body waist shape to obtain a cylinder body waist shape blank;
step two: fixing the cylinder body waist-shaped blank on a CNC machine tool;
step three: drilling the waist-shaped blank of the cylinder body to obtain a positioning hole;
step four: processing a waist-shaped groove on the waist-shaped blank of the cylinder body;
step five: reaming the waist-shaped groove to form a semi-conical waist-shaped groove, so as to obtain a waist-shaped semi-finished product of the cylinder body;
step six: and taking the cylinder body waist-shaped semi-finished product down from the CNC machine tool, and polishing and grinding the cylinder body waist-shaped semi-finished product to obtain the cylinder body waist-shaped finished product.
2. The novel method for processing the waist-shaped cylinder body of the axial plunger pump as claimed in claim 1, wherein in the second step, the waist-shaped cylinder body blank is clamped by a three-jaw self-centering chuck.
3. The novel processing method for the waist of the cylinder body of the axial plunger pump as claimed in claim 2, characterized in that in the third step, the blank of the waist of the cylinder body is drilled by using a drill, then the positioning hole is roughly lathed by using an inner hole cutter, and finally the positioning hole is finely lathed by using a boring cutter, thereby obtaining the positioning hole.
4. The new method of claim 3, wherein the positioning holes are in the shape of teeth.
5. The method for processing the cylinder waist of the axial plunger pump according to claim 4, wherein the waist-shaped groove is processed on the cylinder waist-shaped blank by taking the positioning hole as a reference in the fourth step, and the waist-shaped groove is a cylinder with an arc shape.
6. The method for processing the waist shape of the cylinder body of the axial plunger pump according to claim 5, wherein in the fifth step, a reamer is used for reaming the waist-shaped groove, so that the part of the waist-shaped groove is tapered to form the semi-tapered waist-shaped groove.
7. The method for processing the cylinder waist of the axial plunger pump according to claim 6, wherein the cylinder waist blank is ground before the second step.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011359823.5A CN112475816A (en) | 2020-11-27 | 2020-11-27 | Novel processing method for waist-shaped cylinder body of axial plunger pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011359823.5A CN112475816A (en) | 2020-11-27 | 2020-11-27 | Novel processing method for waist-shaped cylinder body of axial plunger pump |
Publications (1)
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|---|---|
| CN112475816A true CN112475816A (en) | 2021-03-12 |
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| CN202011359823.5A Pending CN112475816A (en) | 2020-11-27 | 2020-11-27 | Novel processing method for waist-shaped cylinder body of axial plunger pump |
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Citations (12)
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| JP2001090652A (en) * | 1999-09-27 | 2001-04-03 | Hitachi Constr Mach Co Ltd | Hydraulic rotary machine |
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| US6544012B1 (en) * | 2000-07-18 | 2003-04-08 | George H. Blume | High pressure plunger pump housing and packing |
| CN102489962A (en) * | 2011-12-15 | 2012-06-13 | 昆山恒源机械制造有限公司 | Machining method for double cylinder bodies of automobile air-conditioning compressor |
| CN202877541U (en) * | 2012-11-07 | 2013-04-17 | 株洲市科仁达新材料有限公司 | Powder-metallurgy-molded hydraulic plunger pump cylinder block blank |
| CN103147975A (en) * | 2013-03-06 | 2013-06-12 | 中航力源液压股份有限公司 | Method for improving performance of high-speed and heavy-load plunger pump and novel tapered cylinder device |
| CN104481865A (en) * | 2014-09-28 | 2015-04-01 | 宁波广天赛克思液压有限公司 | Plunger piston shoe structure used for swash plate type axial plunger pump or motor |
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| CN202877541U (en) * | 2012-11-07 | 2013-04-17 | 株洲市科仁达新材料有限公司 | Powder-metallurgy-molded hydraulic plunger pump cylinder block blank |
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| CN109630404A (en) * | 2019-02-25 | 2019-04-16 | 金职液压动力(金华)有限公司 | A kind of embedded low flow resistance plunger pump cylinder body structure |
| CN111195729A (en) * | 2020-01-09 | 2020-05-26 | 苏州莱特复合材料有限公司 | Production process of powder metallurgy high-pressure plunger pump cylinder body |
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Application publication date: 20210312 |
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