CN105945709A - Abrasive water nozzle inner hole grinding machining fixture and method - Google Patents
Abrasive water nozzle inner hole grinding machining fixture and method Download PDFInfo
- Publication number
- CN105945709A CN105945709A CN201610272775.3A CN201610272775A CN105945709A CN 105945709 A CN105945709 A CN 105945709A CN 201610272775 A CN201610272775 A CN 201610272775A CN 105945709 A CN105945709 A CN 105945709A
- Authority
- CN
- China
- Prior art keywords
- water nozzle
- abrasive water
- abrasive
- endoporus
- driving piston
- 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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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B31/00—Machines or devices designed for polishing or abrading surfaces on work by means of tumbling apparatus or other apparatus in which the work and/or the abrasive material is loose; Accessories therefor
- B24B31/006—Machines or devices designed for polishing or abrading surfaces on work by means of tumbling apparatus or other apparatus in which the work and/or the abrasive material is loose; Accessories therefor for grinding the interior surfaces of hollow workpieces
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B41/00—Component parts such as frames, beds, carriages, headstocks
- B24B41/06—Work supports, e.g. adjustable steadies
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
Abstract
The invention discloses an abrasive water nozzle inner hole grinding machining fixture. The abrasive water nozzle inner hole grinding machining fixture is characterized by comprising a hollow chamber used for fixing and installing an abrasive water nozzle, and the hollow chamber is divided into an upper abrasive chamber body, a lower abrasive chamber body and a middle working area through an upper driving piston and a lower driving piston; the middle working area is provided with a plate base, a manual pressing sleeve, an open bushing and a clamping sleeve; a first inner hole in the lower portion of the clamping sleeve is in clearance fit with the outer diameter of the abrasive water nozzle; and when the fixture operates, the middle working area filled with diamond micro powder abrasives is extruded by the upper driving piston and the lower driving piston, the open bushing is pressed by the manual pressing sleeve to fix the abrasive water nozzle inside the fixture, and an abrasive water nozzle inner hole is machined and ground through the diamond micro powder abrasives. The invention further discloses a method for machining the abrasive water nozzle inner hole. According to the abrasive water nozzle inner hole grinding machining fixture and method, the abrasive water nozzle is clamped and fixed through the special fixture, and the smoothness of the abrasive water nozzle inner hole is improved through the diamond micro powder abrasive grinding machining process, so that the abrasion resistance of the abrasive water nozzle is good, and the service life of the abrasive water nozzle is prolonged.
Description
Technical field
The invention belongs to Fine and Deep Hole spread out mill manufacture field, a kind of cut with abrasive water nozzle interior
Mill fixture for processing is spread out in hole and endoporus spreads out mill processing method.
Background technology
Abrasive water nozzle is one of critical component of high-pressure grinding material water jet equipment.Its cutting performance and use
Life-span is the biggest on cutting efficiency and the economic benefit impact of high-pressure grinding material water jet.High pressure abrasive water for a long time
Jet nozzle annoyings water jet circle of China always, up to now, cutting with the design of abrasive water nozzle and
The degree that service life is still the most satisfied.Crudy and nozzle are made by abrasive water nozzle inside diameter surface quality
All have an impact with the life-span.
During Abrasive Water Jet Machining, nozzle plays an important role.Can be height according to processing needs
Buckling becomes at a high speed, and the efficiency of this transformation process and cutting sole mass are relied in abrasive water nozzle Fine and Deep Hole
Design.Its serviceability and service life to the cutting efficiency of high-pressure grinding material water jet, cut quality and
Economic benefit impact is the biggest.At present, the abrasive water nozzle used by more domestic enterprises is mainly from external import
's.In the processing of most of Abrasive Water Jet Machining, the most frequently used abrasive water nozzle diameter is 0.7～1.2mm, long
Degree is 55～75mm.The abrasive water nozzle of import is expensive, different according to plate, and typical abrasive water sprays
Mouth, its price is at 200 to 400 dollars.And show from external open source information, only show that the material of nozzle is
Hard alloy, but the course of processing of concrete composition and nozzle molding is from not mentioned.
Existing research to abrasive water nozzle at home, such as: Chinese invention patent application CN102363285A
Disclose a kind of abrasive water jet cutting spray head device；Chinese invention patent application CN1765582A is open
A kind of high-pressure grinding material water jet cutter head device and mixing tube；Chinese invention patent application number
CN102225535A discloses a kind of quasi-rectangle abrasive water nozzle of abrasive water-jet；Chinese invention patent Shen
Please disclose a kind of Abrasive Water Jet Machining nozzle etc. by a number CN104070461.But above-mentioned research mainly collects
In optimize abrasive water nozzle structure；Reduce abrasion；Improve installation method, prevent the aspects such as jet blocking.
The abrasive water nozzle bore surface roughness of conventional method processing does not reaches requirement, if be polished again
Process so that it is reach bright degree as minute surface, then nozzle surface quality and service life can realize bigger
The raising of amplitude.Because nozzle bore diameter only has 1.1mm, it is difficult with mechanical means polishing.Therefore,
Current problem demanding prompt solution is become for how improving abrasive water nozzle inside diameter surface quality, if nozzle matter
Amount difference or wearability are inadequate, and jet quality will be caused to deteriorate, it is possible to make the power major part of jet apparatus
All slattern.
Summary of the invention
According to the technical problem of abrasive water nozzle inside diameter surface accuracy difference set forth above, and provide a kind of abrasive material
The endoporus of (operating) water nozzle spreads out mill fixture for processing and endoporus spreads out mill processing method.The present invention mainly utilizes extruding to spread out
The mode of mill processing carries out polish to abrasive water nozzle bore, and the abrasive water nozzle bore surface after processing is thick
Rugosity value can reach about 0.2 μm.
The technological means that the present invention uses is as follows:
The endoporus of a kind of abrasive water nozzle spreads out mill fixture for processing, it is characterised in that: described fixture include for
Fixedly mounting the hollow chamber of described abrasive water nozzle, described hollow chamber is lived by upper driving piston and lower driving
Plug is separated into top grinding chamber, bottom grinding chamber and working area, middle part；Working area, described middle part be provided with clamping and
The dish seat being fixed on the sidewall of described hollow chamber, manual gland is inserted into chuck upper open end and passes through institute
The outer edge bulge stating chuck is fixed on the top of described dish seat, described chuck bottom endoporus I and described mill
Material (operating) water nozzle crest clearance coordinates；It is additionally provided with broached bushing between described manual gland and described chuck, described
Endoporus II diameter of broached bushing is more than the external diameter of described abrasive water nozzle；During work, described upper driving piston
With the working area, described middle part that described lower driving piston press fills full diadust abrasive material, described manual pressure
Casing pressure residence is stated broached bushing and is fixed in described fixture by described abrasive water nozzle, and described diadust grinds
The endoporus of abrasive water nozzle described in material processing grinding.
Further, the endoporus II of described broached bushing is coaxial with described clamp central axle, described broached bushing
Outside be the conical surface extended to grinding chamber direction, described bottom from described top grinding chamber.
Further, described broached bushing can be at described dish seat together with described manual gland and described chuck
Hole rotates.
Further, described upper driving piston and described lower driving piston are driven by hydraulic system, and processing is used
Extruding force be 1MPa-3MPa.
Further, the particle size range of described diadust abrasive material is W5-W7.
The invention also discloses the endoporus of a kind of abrasive water nozzle to spread out mill processing method, it is characterised in that include as
Lower step:
S1, by above-mentioned fixture, abrasive water nozzle is clamped in the working area, middle part of described fixture；
S2, in the working area, middle part of described fixture inject diadust abrasive material, described diadust grind
Material is lived by the lower driving in the upper driving piston in the top grinding chamber of described fixture and bottom grinding chamber respectively
Plug extruding is fixed on described abrasive water nozzle interior and surrounding；
S3, start described upper driving piston and described lower driving piston, drive on described diadust abrasive material
Lower motion, described diadust abrasive material moves in the endoporus of described abrasive water nozzle the most repeatedly, to institute
The endoporus stating abrasive water nozzle is polished processing.
As in figure 2 it is shown, abrasive water nozzle it be water-jet technology application in obtain high-energy utilization rate key
One of parts, have significantly impact to jet quality.Diameter d is less for nozzle bore, only 1.1mm, spray
Mouth length L is typically 55～75mm, and nozzle afterbody is the reaming that angle is α of a length of Ls.During use
Utilize the jet with the biggest kinetic energy from nozzle injection, be carried out, cut and fractured rock etc., real
Test and it turned out, if nozzle quality difference or wearability are inadequate, jet quality will be caused to deteriorate, it is possible to
The power major part making jet apparatus all slatterns.If nozzle quality difference or wearability are inadequate, will cause and penetrate
Current mass deteriorates, it is possible to make the power major part of jet apparatus all slattern.The effect of abrasive water nozzle
Mainly there are following 3: abrasive grain is accelerated to the speed close to water jet；Adjust the abrasive material in jet
It is consistent that grain is allowed to direction；Abrasive grain is guided to workpiece.Abrasive water nozzle inside diameter surface quality is to adding working medium
Amount and nozzle all have an impact service life.
The invention mainly includes by the special grinding jig that spreads out, abrasive water nozzle is clamped, then passes through
Diadust abrasive material is full of wherein, makes abrasive material mobile polishing in endoporus, improves abrasive water nozzle bore light
Cleanliness, makes abrasive water nozzle wearability good, postpones its service life.
The abrasive water-jet using this nozzle to be processed is cost-effective non-traditional process technology, and it does not has
Heat, electricity and chemical reaction process, do not produce the change of metallurgy, chemically or physically characteristic in workpiece.Permissible
Process the high-quality and efficient Novel engineering ceramic product with property.It is made to be widely used in machinery, electricity
The fields such as son, Aero-Space, national defense industry, biological engineering.
Accompanying drawing explanation
The present invention is further detailed explanation with detailed description of the invention below in conjunction with the accompanying drawings.
Fig. 1 is the schematic diagram of the fixture processing abrasive water nozzle bore of the present invention.
Fig. 2 is the abrasive water nozzle schematic diagram of the present invention.
In figure: 1, top grinding chamber 2, upper driving piston 3, manual gland 4, chuck 5, broached bushing 6,
Dish seat 7, abrasive water nozzle 8, diadust abrasive material 9, lower driving piston 10, bottom grinding chamber.
Detailed description of the invention
The mill fixture for processing as it is shown in figure 1, the endoporus of a kind of abrasive water nozzle spreads out, described fixture include for
For fixedly mounting the hollow chamber of described abrasive water nozzle 7, described hollow chamber is by upper driving piston 2 He
Lower driving piston 9 is separated into top grinding chamber 1, bottom grinding chamber 10 and working area, middle part；Described middle part work
Be provided with clamping and the dish seat 6 being fixed on the sidewall of described hollow chamber as district, manual gland 3 is inserted into chuck
4 upper open ends and the outer edge bulge by described chuck 4 are fixed on the top of described dish seat 6, described folder
Overlap 4 bottom endoporus I to coordinate with described abrasive water nozzle 7 crest clearance；Described manual gland 3 and described folder
Being additionally provided with broached bushing 5 between set 4, endoporus II diameter of described broached bushing 5 is more than described abrasive water nozzle
The external diameter of 7, the endoporus II of described broached bushing 5 is coaxial with described clamp central axle, described broached bushing 5
Outside is the conical surface extended to grinding chamber 10 direction, described bottom from described top grinding chamber 1.
During use, abrasive water nozzle 7 is put in the endoporus I of chuck 4, the endoporus I of chuck 4 and abrasive water
Nozzle 7 external diameter is matched in clearance.When manual gland 3 is non-depressed, endoporus II diameter of broached bushing 5 is than mill
Material (operating) water nozzle 7 external diameter is slightly larger.When rotary manual gland 3, manual gland 3 is made to move down by screw thread, edge
Taper-face contact makes broached bushing 5 to central reduction (because slotting on lining), thus clamps abrasive water nozzle 7.
After clamping abrasive water nozzle 7, broached bushing 5 can also be at dish seat 6 together with manual gland 3 and chuck 4
Hole in rotate.Described upper driving piston 2 and described lower driving piston 9 are driven by hydraulic system, described on
Drive piston 2 and the described middle part work of the full diadust abrasive material 8 of described lower driving piston 9 extrusion packing
District, the extruding force used by processing is 1MPa-3MPa.Described diadust abrasive material 8 is processed and is ground described in grinding
The endoporus of material (operating) water nozzle 7.The particle size range of described diadust abrasive material 8 is W5 (4000 mesh)-W7
(3000 mesh).
The fixture of the present invention makes diadust abrasive material 8 by regulation path by surface to be machined, the most also rises
The effect installing fixing workpiece, therefore clamp structure according to abrasive water nozzle 7 external shape, size and adds
Work requires to manufacture and design.Clamp material is carbon steel, is changed after abrasion.
The endoporus of the abrasive water nozzle of the present invention spreads out mill processing method, comprises the steps:
S1, by above-mentioned fixture, abrasive water nozzle 7 is clamped in the working area, middle part of described fixture；
S2, in the working area, middle part of described fixture inject diadust abrasive material 8, described diadust grind
Material 8 is respectively by the upper driving piston 2 in the top grinding chamber 1 of described fixture and bottom grinding chamber 10
The extruding of lower driving piston 9 is fixed on described abrasive water nozzle 7 within and around；
S3, start described upper driving piston 2 and described lower driving piston 9, drive described diadust abrasive material
8 move up and down, and described diadust abrasive material 8 moves in the endoporus of described abrasive water nozzle 7 the most repeatedly,
The endoporus of described abrasive water nozzle 7 is polished processing.Diadust abrasive material is mobile polishing in endoporus,
Improve abrasive water nozzle bore fineness, make abrasive water nozzle wearability good, postpone its service life.
The above, the only present invention preferably detailed description of the invention, but protection scope of the present invention not office
Being limited to this, any those familiar with the art is in the technical scope that the invention discloses, according to this
The technical scheme of invention and inventive concept thereof in addition equivalent or change, all should contain the protection in the present invention
Within the scope of.
Claims (6)
1. the endoporus of an abrasive water nozzle spreads out mill fixture for processing, it is characterised in that: described fixture includes using
In the hollow chamber of the described abrasive water nozzle (7) of fixed installation, described hollow chamber is by upper driving piston (2)
It is separated into top grinding chamber (1), bottom grinding chamber (10) and working area, middle part with lower driving piston (9)；
Working area, described middle part is provided with clamping and the dish seat (6) being fixed on the sidewall of described hollow chamber, manually presses
Set (3) is inserted into chuck (4) upper open end and the outer edge bulge by described chuck (4) is fixed on
The top of described dish seat (6), described chuck (4) bottom endoporus I and described abrasive water nozzle (7) external diameter
Matched in clearance；Broached bushing (5), institute it is additionally provided with between described manual gland (3) and described chuck (4)
State endoporus II diameter external diameter more than described abrasive water nozzle (7) of broached bushing (5)；During work, institute
State driving piston (2) and described lower driving piston (9) extrusion packing expires diadust abrasive material (8)
Working area, described middle part, described manual gland (3) is pushed down described broached bushing (5) and is sprayed by described abrasive water
Mouth (7) is fixed in described fixture, abrasive water spray described in the processing grinding of described diadust abrasive material (8)
The endoporus of mouth (7).
The endoporus of abrasive water nozzle the most according to claim 1 spreads out mill machining tool, it is characterised in that:
The endoporus II of described broached bushing (5) is coaxial with described clamp central axle, outside described broached bushing (5)
Side is the conical surface extended to grinding chamber (10) direction, described bottom from described top grinding chamber (1).
The endoporus of abrasive water nozzle the most according to claim 1 spreads out mill machining tool, it is characterised in that:
Described broached bushing (5) can be described dish seat (6) together with described manual gland (3) and described chuck (4)
Hole in rotate.
The endoporus of abrasive water nozzle the most according to claim 1 spreads out mill machining tool, it is characterised in that:
Described upper driving piston (2) and described lower driving piston (9) are driven by hydraulic system, squeezing used by processing
Pressure is 1MPa-3MPa.
The endoporus of abrasive water nozzle the most according to claim 1 spreads out mill machining tool, it is characterised in that:
The particle size range of described diadust abrasive material (8) is W5-W7.
6. the endoporus of an abrasive water nozzle spreads out mill processing method, it is characterised in that comprise the steps:
S1, by fixture as described in claim 1-5 any one, abrasive water nozzle (7) is gripped
In the working area, middle part of described fixture；
S2, injection diadust abrasive material (8) in the working area, middle part of described fixture, described diamond is micro-
Grinding material (8) is respectively by the upper driving piston (2) in the top grinding chamber (1) of described fixture and bottom
It is internal and all that lower driving piston (9) extruding in grinding chamber (10) is fixed on described abrasive water nozzle (7)
Enclose；
S3, start described upper driving piston (2) and described lower driving piston (9), drive described diamond micro-
Grinding material (8) moves up and down, and described diadust abrasive material (8) is interior described abrasive water nozzle (7)
Move the most repeatedly in hole, the endoporus of described abrasive water nozzle (7) is polished processing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610272775.3A CN105945709A (en) | 2016-04-27 | 2016-04-27 | Abrasive water nozzle inner hole grinding machining fixture and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610272775.3A CN105945709A (en) | 2016-04-27 | 2016-04-27 | Abrasive water nozzle inner hole grinding machining fixture and method |
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| Publication Number | Publication Date |
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| CN105945709A true CN105945709A (en) | 2016-09-21 |
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| CN201610272775.3A Pending CN105945709A (en) | 2016-04-27 | 2016-04-27 | Abrasive water nozzle inner hole grinding machining fixture and method |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106976008A (en) * | 2017-05-10 | 2017-07-25 | 国营第六六厂 | A kind of big L/D ratio intersects the burr removal device and method of deep oilhole |
| CN108637717A (en) * | 2018-05-21 | 2018-10-12 | 国营第六六厂 | A kind of clamp for machining of accurate quickly tungsten alloys valve seat inclined hole |
| CN110549241A (en) * | 2019-10-09 | 2019-12-10 | 无锡威孚马山油泵油嘴有限公司 | Extrusion grinding clamp for electric fitting series valve plates |
| CN111633473A (en) * | 2020-04-20 | 2020-09-08 | 广东龙丰精密铜管有限公司 | Machining method of reducing die |
| CN112658963A (en) * | 2020-12-05 | 2021-04-16 | 湖州师范学院 | Pretreatment polishing process before electroplating |
| CN114728398A (en) * | 2019-11-18 | 2022-07-08 | Am金属有限公司 | Flow grinding device for smoothing the surface of a workpiece |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106976008A (en) * | 2017-05-10 | 2017-07-25 | 国营第六六厂 | A kind of big L/D ratio intersects the burr removal device and method of deep oilhole |
| CN108637717A (en) * | 2018-05-21 | 2018-10-12 | 国营第六六厂 | A kind of clamp for machining of accurate quickly tungsten alloys valve seat inclined hole |
| CN108637717B (en) * | 2018-05-21 | 2020-06-02 | 国营第六一六厂 | Machining clamp for precise and rapid hydraulic extrusion of inclined hole of valve seat |
| CN110549241A (en) * | 2019-10-09 | 2019-12-10 | 无锡威孚马山油泵油嘴有限公司 | Extrusion grinding clamp for electric fitting series valve plates |
| CN114728398A (en) * | 2019-11-18 | 2022-07-08 | Am金属有限公司 | Flow grinding device for smoothing the surface of a workpiece |
| CN111633473A (en) * | 2020-04-20 | 2020-09-08 | 广东龙丰精密铜管有限公司 | Machining method of reducing die |
| CN112658963A (en) * | 2020-12-05 | 2021-04-16 | 湖州师范学院 | Pretreatment polishing process before electroplating |
| CN112658963B (en) * | 2020-12-05 | 2023-04-25 | 湖州学院 | Pretreatment polishing process before electroplating |
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Application publication date: 20160921 |
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