CN114850976B - High-efficiency high-precision machining method for bottom surface of valve seat of four-way valve - Google Patents
High-efficiency high-precision machining method for bottom surface of valve seat of four-way valve Download PDFInfo
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- CN114850976B CN114850976B CN202210580460.0A CN202210580460A CN114850976B CN 114850976 B CN114850976 B CN 114850976B CN 202210580460 A CN202210580460 A CN 202210580460A CN 114850976 B CN114850976 B CN 114850976B
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- fixed abrasive
- sided
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- 238000003754 machining Methods 0.000 title claims description 21
- 238000000034 method Methods 0.000 title claims description 18
- 238000000227 grinding Methods 0.000 claims abstract description 113
- 239000000919 ceramic Substances 0.000 claims abstract description 62
- 239000006061 abrasive grain Substances 0.000 claims abstract description 41
- 239000002245 particle Substances 0.000 claims description 22
- 239000000463 material Substances 0.000 claims description 6
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims description 5
- 239000000110 cooling liquid Substances 0.000 claims description 2
- 229910001220 stainless steel Inorganic materials 0.000 claims description 2
- 239000010935 stainless steel Substances 0.000 claims description 2
- 238000003672 processing method Methods 0.000 abstract description 5
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 2
- 239000003082 abrasive agent Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000003801 milling Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000005057 refrigeration Methods 0.000 description 1
Classifications
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- 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
- B24B1/00—Processes of grinding or polishing; Use of auxiliary equipment in connection with such processes
-
- 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
- B24B37/00—Lapping machines or devices; Accessories
- B24B37/04—Lapping machines or devices; Accessories designed for working plane surfaces
- B24B37/07—Lapping machines or devices; Accessories designed for working plane surfaces characterised by the movement of the work or lapping tool
- B24B37/08—Lapping machines or devices; Accessories designed for working plane surfaces characterised by the movement of the work or lapping tool for double side lapping
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- 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
- B24B37/00—Lapping machines or devices; Accessories
- B24B37/27—Work carriers
- B24B37/28—Work carriers for double side lapping of plane surfaces
-
- 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
- B24B37/00—Lapping machines or devices; Accessories
- B24B37/34—Accessories
-
- 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
- B24B37/00—Lapping machines or devices; Accessories
- B24B37/34—Accessories
- B24B37/345—Feeding, loading or unloading work specially adapted to lapping
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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
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Grinding And Polishing Of Tertiary Curved Surfaces And Surfaces With Complex Shapes (AREA)
Abstract
A high-efficiency high-precision processing method for the bottom surface of a valve seat of a four-way valve comprises the following steps: the upper grinding disc of the fixed abrasive grain ceramic and the lower grinding disc of the fixed abrasive grain ceramic form a double-sided grinding machine, and the upper and lower fixed abrasive grain ceramic grinding discs are controlled to be separated; mounting valve seat parts in upper and lower workpiece grooves of the double-sided planetary gear clamp, and mounting the double-sided planetary gear clamp between an upper fixed abrasive grain ceramic grinding disc and a lower fixed abrasive grain ceramic grinding disc; the control panel is operated to control the grinding disc on the fixed abrasive grain ceramic to descend to be in contact with the valve seat part, processing parameters of grinding processing are set, the processing parameters comprise grinding load, rotation speed and time of the sun wheel, the gear ring, the fixed abrasive grain ceramic upper grinding disc, the fixed abrasive grain ceramic lower grinding disc and the like, and the grinding processing is carried out.
Description
Technical Field
The invention relates to the technical field of valve seat precision machining, in particular to a high-efficiency high-precision machining method for the bottom surface of a four-way valve seat.
Background
In refrigeration equipment, the four-way valve plays a role in switching air paths so as to realize the switching of refrigerating and heating modes, in the four-way valve, the valve seat is one of key parts for playing a role in switching air paths and preventing air leakage, and the bottom surface of the high-precision valve seat can effectively prevent air leakage, so that the comprehensive benefit of a product is improved, the service life of the product is prolonged, and therefore, the high-precision valve seat part is efficiently processed to have a certain practical significance.
The bottom surface of the valve seat part is subjected to high-precision grinding, and at present, a common processing method is to adopt single-sided grinding equipment for grinding, but the single-sided grinding equipment is limited by the size of a grinding disc, so that the number of valve seats processed at a time is small, and the valve seats are required to be fed and discharged for multiple times during batch processing, so that the processing efficiency is affected; secondly, the grinding track of the bottom surface of the valve seat is single, and even removal of the machining surface material is difficult to realize.
Therefore, the method aims at improving the processing efficiency and reducing the cost, can rapidly meet the requirement of flatness of the bottom surface of the valve seat part, and combines the characteristic that the upper grinding disc and the lower grinding disc of the double-sided grinding equipment can be simultaneously processed, thereby designing the high-efficiency high-precision processing method of the bottom surface of the four-way valve seat based on the double-sided grinding equipment.
Disclosure of Invention
The invention aims to overcome the defects in the prior art, and provides a high-efficiency high-precision processing method for the bottom surface of a four-way valve seat, which can solve the problems of low processing efficiency of the existing valve seat and uneven material removal in the processing process.
In order to achieve the above purpose, the technical scheme adopted by the invention is as follows: a high-efficiency high-precision processing method for the bottom surface of a valve seat of a four-way valve comprises the following steps:
Step A: the method comprises the steps that a double-sided grinding machine is formed by an upper grinding disc of the fixed abrasive grain ceramic and a lower grinding disc of the fixed abrasive grain ceramic, whether the upper grinding disc of the fixed abrasive grain ceramic is separated from the lower grinding disc of the fixed abrasive grain ceramic or not is observed, and if the upper grinding disc of the fixed abrasive grain ceramic and the lower grinding disc of the fixed abrasive grain ceramic are in a bonding state, the upper grinding disc of the fixed abrasive grain ceramic is controlled to rise to the highest position through a control panel;
And (B) step (B): one side of the double-sided planetary gear clamp faces upwards, and valve seat parts are arranged in the workpiece grooves one by one according to the positions of the workpiece grooves on the double-sided planetary gear clamp;
Step C: after valve seat parts are arranged in all workpiece grooves of the surface, a circular baffle plate is used for covering the double-sided planetary gear clamp with the valve seat parts, so that the valve seat parts are prevented from falling out when the double-sided planetary gear clamp is turned over, and the surface of the double-sided planetary gear clamp with the valve seat parts is downwards along with the circular baffle plate;
step D: the method comprises the steps of meshing a meshing gear on a double-sided planetary gear clamp with a sun gear and a gear ring, arranging the gear ring, the double-sided planetary gear clamp and the sun gear in a double-sided grinding machine in an integrated structure, pushing out a circular baffle plate to enable a valve seat part arranged in the double-sided planetary gear clamp to be in contact with a lower grinding disc of fixed abrasive grain ceramics, and finishing one side of the double-sided planetary gear clamp;
Step E: the other surface of the double-sided planetary gear clamp, which is not provided with the valve seat part, faces upwards, and the valve seat part is arranged in the one surface according to the position of the workpiece groove, so that the valve seat part is arranged on the upper surface and the lower surface of the double-sided planetary gear clamp;
step F: and (3) operating a control panel to control the grinding disc on the fixed abrasive grain ceramic to descend to be in contact with the valve seat part, and setting processing parameters of grinding processing, including grinding load, rotation speed and time of the sun wheel, the gear ring, the fixed abrasive grain ceramic upper grinding disc and the fixed abrasive grain ceramic lower grinding disc, and the like, so as to perform grinding processing.
As a preferred scheme of the invention, the dimension of the planetary double-sided star wheel clamp is determined by the modulus, the tooth number and the thickness of the sun wheel and the gear ring.
As a preferable scheme of the invention, the gear ring, the double-sided planet gear clamp and the sun gear are positioned on the same horizontal plane.
As a preferable scheme of the invention, the shape and the size of the workpiece grooves on the upper surface and the lower surface of the double-sided planet wheel clamp are matched with the shape and the size of the valve seat part; the height dimension of the valve seat part is larger than that of the workpiece groove, and the bottom surface of the valve seat part is higher than and parallel to the surface of the double-sided planet gear clamp.
As a preferable scheme of the invention, three through holes are uniformly distributed on the workpiece groove, and the sizes and positions of the three through holes correspond to those of the three through holes on the valve seat part.
As a preferable scheme of the invention, the upper grinding disc of the fixed abrasive grain ceramic, the lower grinding disc of the fixed abrasive grain ceramic, the sun wheel and the gear ring are controlled by independent motors.
As a preferable mode of the invention, the rotation and revolution speeds of the double-sided planetary gear clamp are controlled by the rotation speeds of the sun gear and the gear ring.
As a preferable scheme of the invention, the upper grinding disc of the fixed abrasive particle ceramic grinds the bottom surface of the valve seat part on the upper side of the double-sided planetary gear clamp, the lower grinding disc of the fixed abrasive particle ceramic grinds the bottom surface of the valve seat part on the lower side of the double-sided planetary gear clamp, and the upper grinding disc and the lower grinding disc grind the valve seat parts on the upper side and the lower side simultaneously.
In a preferred embodiment of the present invention, the abrasive materials of the upper abrasive disk of the fixed abrasive grain ceramic and the lower abrasive disk of the fixed abrasive grain ceramic are alumina.
As a preferable scheme of the invention, the workpiece grooves on the two sides of the double-sided planet wheel clamp are not communicated, and the number of the workpiece grooves on the planet wheel clamp is more than 6.
The beneficial effects of the invention are as follows:
1. The number of valve seats processed once is twice that of the valve seats processed by the traditional single-side grinding, and the processing efficiency is improved.
2. The rotating speed, the abrasive materials and the granularity of the upper and lower grinding disks of the fixed abrasive grain ceramic can be independently controlled, and the valve seat part above the double-sided planet gear clamp and the valve seat part below the double-sided planet gear clamp can be controlled to be separately processed under different conditions, so that different requirements in actual work are met.
3. The valve seat part provided by the invention can revolve around the central shaft of the sun gear in the planetary gear clamp, and can rotate around the central shaft of the planetary gear clamp, so that the grinding track is more complex and uniform, and the uniform removal of the material on the bottom surface of the valve seat part is facilitated.
Drawings
FIG. 1 is a schematic diagram of the structure of the present invention;
FIG. 2 is a top view of a double sided planet clip;
FIG. 3 is a cross-sectional view of a double sided planetary gear clamp;
Reference numerals in the drawings: 1. the grinding disc on the fixed abrasive grain ceramic, 2, the gear ring, 3, the sun gear, 4, the double-sided planetary gear clamp, 5, the grinding disc under the fixed abrasive grain ceramic, 41, the meshing gear, 42, the workpiece groove, 43, the through hole, 44 and the planetary gear clamp surface.
Detailed Description
Embodiments of the present invention will be described in detail below with reference to the accompanying drawings.
As shown in fig. 1-3, a method for efficiently and accurately machining the bottom surface of a valve seat of a four-way valve comprises the following steps:
Step A: the fixed abrasive grain ceramic upper grinding disc 1 and the fixed abrasive grain ceramic lower grinding disc 5 form a double-sided grinding machine, whether the fixed abrasive grain ceramic upper grinding disc 1 and the fixed abrasive grain ceramic lower grinding disc 5 are separated or not is observed, and if the fixed abrasive grain ceramic upper grinding disc 1 and the fixed abrasive grain ceramic lower grinding disc 5 are in a bonding state, the fixed abrasive grain ceramic upper grinding disc 1 is controlled to rise to the highest position through a control panel;
and (B) step (B): the double-sided planetary gear clamp 4 is arranged with one side facing upwards, and valve seat parts are arranged in the workpiece groove 42 one by one according to the position of the workpiece groove 42 on the double-sided planetary gear clamp 4;
Step C: after valve seat parts are arranged in all the workpiece grooves 42 of the surface, a circular baffle plate is used for covering the double-sided planetary gear clamp 4 on which the valve seat parts are arranged, so that the valve seat parts are prevented from falling out when the double-sided planetary gear clamp 4 turns over, and the surface of the double-sided planetary gear clamp 4 on which the valve seat parts are arranged is downwards along with the circular baffle plate;
Step D: the meshing gear 41 on the double-sided planet gear clamp 4 is meshed with the sun gear 3 and the gear ring 2, the double-sided planet gear clamp 4 and the sun gear 3 are integrally arranged in a double-sided grinding machine, a circular baffle is pushed out, a valve seat part arranged in the double-sided planet gear clamp 4 is contacted with the fixed abrasive grain ceramic lower grinding disc 5, and one side of the double-sided planet gear clamp 4 is arranged;
Step E: the other surface of the double-sided planetary gear clamp 4, on which the valve seat part is not mounted, faces upwards, and the valve seat part is mounted on the one surface according to the position of the workpiece groove 42, so that the valve seat part is mounted on the upper surface and the lower surface of the double-sided planetary gear clamp 4;
Step F: the control panel is operated to control the grinding disc 1 on the fixed abrasive grain ceramic to descend to be in contact with the valve seat part, and processing parameters of grinding processing are set, including grinding load, rotation speed, time and the like of the sun wheel 3, the gear ring 2, the grinding disc 1 on the fixed abrasive grain ceramic, the grinding disc 5 under the fixed abrasive grain ceramic and the like, so that grinding processing is performed.
The size of the double-sided planet wheel clamp 4 is determined by the modulus, the tooth number and the thickness of the sun wheel 3 and the gear ring 2. The gear ring 2, the double-sided planet wheel clamp 4 and the sun wheel 3 are positioned on the same horizontal plane, which is beneficial for the double-sided grinding machine to selectively grind valve seat parts without damaging the gear ring 2, the double-sided planet wheel clamp 4 and the sun wheel 3.
The double-sided planet wheel clamp 4 is designed into a fixture clamp for machining the bottom surface of the valve seat part. Machining proper workpiece grooves 42 on the upper surface and the lower surface of the double-sided planetary gear clamp 4 according to the shape and the size of the valve seat part, wherein the shape and the size of the workpiece grooves 42 on the upper surface and the lower surface of the double-sided planetary gear clamp 4 are matched with the shape and the size of the valve seat part, so that the valve seat part is convenient to install quickly; the height dimension of the valve seat part is larger than that of the workpiece groove 42, the bottom surface of the valve seat part is higher than and parallel to the planetary gear clamp surface 44, and the double-sided grinding machine only contacts the bottom surface of the valve seat part and does not contact the double-sided planetary gear clamp 4 when grinding.
The workpiece groove 42 is uniformly provided with three through holes 43, the sizes and positions of the three through holes 43 correspond to those of the three through holes on the valve seat part, and the three through holes 43 can enable cooling liquid to smoothly flow from the fixed abrasive particle ceramic upper grinding disc 1 to the fixed abrasive particle ceramic lower grinding disc 1, and chips in the grinding process are cleaned in time, so that the grinding precision is ensured.
The fixed abrasive grain ceramic upper grinding disc 1, the fixed abrasive grain ceramic lower grinding disc 5, the sun wheel 3 and the gear ring 2 are controlled by independent motors, so that the valve seat part above the planetary gear clamp and the valve seat part below the planetary gear clamp can be controlled to be separately processed under different conditions, and different requirements in actual work are met; the rotation and revolution speeds of the double-sided planetary gear holder 4 are controlled by the rotational speeds of the sun gear 3 and the ring gear 2.
The grinding disc 1 grinds the valve seat part bottom surface above the double-sided planetary gear clamp 4 on the fixed abrasive grain ceramic, and the grinding disc 5 grinds the valve seat part bottom surface below the double-sided planetary gear clamp 4 under the fixed abrasive grain ceramic, and the upper grinding disc and the lower grinding disc grind the valve seat parts on the upper side and the lower side simultaneously. The materials of the upper grinding disc 1 and the lower grinding disc 5 are alumina.
The workpiece grooves 42 on the two sides of the double-sided planet gear clamp 4 are not communicated, interference between upper and lower valve seat parts is avoided, and in order to improve machining efficiency between the valve seat parts, the number of the workpiece grooves 42 on the double-sided planet gear clamp 4 is greater than 6.
The valve seat part can revolve around the central shaft of the sun gear and rotate around the central shaft of the planetary gear clamp in the double-sided grinding machine, the grinding track is more complex and uniform, the machining precision is improved, the valve seat part is arranged on the upper surface and the lower surface of the planetary gear clamp, the number of components machined at a time is increased, and the production efficiency is improved.
In this embodiment, the processing object of this double-sided grinding is a stainless steel valve seat, 16 valve seat parts are required to be filled on the upper and lower surfaces of the planetary gear clamp, 4 workpieces are randomly extracted, the initial flatness of the bottom surface of the valve seat is measured by using a three-coordinate instrument, and the average flatness after measurement is 42.5um.
Before processing, the surface is wiped by gauze and alcohol, dust and other impurities existing on the surface are removed, valve seat parts are arranged in the double-sided planetary gear clamp 4 according to the workpiece groove 42, and related parameters are set as follows through a control panel: grinding disc 1 rotation speed on fixed abrasive grain ceramic: 15rpm, the rotation speed of the grinding disc 5 under the fixed abrasive grain ceramic: 15rpm, sun gear 3 rotation speed: 13.5rpm, gear ring 2 rotation speed: 22.5rpm, abrasive particles 800 mesh alumina, milling time: 3min, grinding load: 2.7kg/cm2. The processed valve seat part is wiped by alcohol and gauze, and the processed surface flatness is measured by a three-coordinate instrument.
The average flatness of the workpiece before grinding is 42.5um, and the average flatness of the workpiece after grinding is 14um. The machining method has a certain effect on improving the surface precision of the valve seat part, and the number of single double-sided planet wheel clamps 4 for machining the valve seats at a time reaches 32, so that the machining efficiency of the valve seat part is greatly improved.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention; thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Although the reference numerals in the figures are used more herein: 1. the grinding disc 1,2, gear ring, 3, sun gear, 4, planetary gear clamp, 5, grinding disc under the fixed abrasive grain ceramic, 41, meshing gear, 42, workpiece groove, 43, through hole, 44, planetary gear clamp surface, etc., but the possibility of using other terms is not excluded; these terms are used merely for convenience in describing and explaining the nature of the invention; they are to be interpreted as any additional limitation that is not inconsistent with the spirit of the present invention.
Claims (8)
1. The high-efficiency high-precision machining method for the bottom surface of the valve seat of the four-way valve is characterized by comprising the following steps of:
Step A: the double-sided grinding machine is formed by the upper grinding disc (1) and the lower grinding disc (5) of the fixed abrasive particle ceramic, the upper grinding disc (1) and the lower grinding disc (5) of the fixed abrasive particle ceramic are formed by alumina materials, the rotating speed, the abrasive and the granularity of the upper grinding disc (1) and the lower grinding disc (5) of the fixed abrasive particle ceramic can be independently controlled, the upper grinding disc (1) of the fixed abrasive particle ceramic, the lower grinding disc (5) of the fixed abrasive particle ceramic, the sun wheel (3) and the gear ring (2) are controlled by independent motors, whether the upper grinding disc (1) of the fixed abrasive particle ceramic and the lower grinding disc (5) of the fixed abrasive particle ceramic are separated or not is observed, and if the upper grinding disc (1) of the fixed abrasive particle ceramic and the lower grinding disc (5) of the fixed abrasive particle ceramic are in a bonding state, the upper grinding disc (1) of the fixed abrasive particle ceramic is controlled to rise to the highest position by a control panel;
And (B) step (B): one surface of the double-sided planetary gear clamp (4) faces upwards, valve seat parts are arranged in the workpiece grooves (42) one by one according to the positions of the workpiece grooves (42) on the double-sided planetary gear clamp (4), the valve seat parts are stainless steel seats, three through holes (43) are uniformly distributed in the workpiece grooves (42), the sizes and the positions of the three through holes (43) correspond to those of the three through holes on the valve seat parts, and cooling liquid can smoothly flow from the grinding disc (1) on the fixed abrasive particle ceramics to the grinding disc (1) under the fixed abrasive particle ceramics through the three through holes (43);
Step C: after valve seat parts are arranged in all workpiece grooves (42) of the surface, a circular baffle plate is used for covering the double-sided planetary gear clamp (4) with the valve seat parts, so that the valve seat parts are prevented from falling out when the double-sided planetary gear clamp (4) is turned over, and the surface of the double-sided planetary gear clamp (4) with the valve seat parts is downwards along with the circular baffle plate;
Step D: the meshing gear (41) on the double-sided planet gear clamp (4) is meshed with the sun gear (3) and the gear ring (2), the double-sided planet gear clamp (4) and the sun gear (3) are integrally arranged in a double-sided grinding machine, and a circular baffle is pushed out, so that a valve seat part arranged in the double-sided planet gear clamp (4) is abutted against the lower grinding disc (5) of the fixed abrasive grain ceramic, and one side of the double-sided planet gear clamp (4) is arranged;
Step E: the other surface of the double-sided planetary gear clamp (4) without the valve seat part faces upwards, the valve seat part is arranged in the one surface according to the position of the workpiece groove (42), and thus the valve seat part is arranged on the upper surface and the lower surface of the double-sided planetary gear clamp (4);
Step F: and (3) operating a control panel to control the grinding disc (1) on the fixed abrasive particle ceramic to descend to be in contact with the valve seat part, and setting processing parameters of grinding processing, including grinding load, rotation speed, time and the like of the sun gear (3), the gear ring (2), the grinding disc (1) on the fixed abrasive particle ceramic, the grinding disc (5) under the fixed abrasive particle ceramic, and the like, so as to perform grinding processing.
2. The method for efficiently and accurately machining the bottom surface of the valve seat of the four-way valve according to claim 1, which is characterized in that: the size of the double-sided planet wheel clamp (4) is determined by the modulus, the tooth number and the thickness of the sun wheel (3) and the gear ring (2).
3. The method for efficiently and accurately machining the bottom surface of the valve seat of the four-way valve according to claim 2, which is characterized in that: the gear ring (2), the double-sided planet wheel clamp (4) and the sun wheel (3) are positioned on the same horizontal plane.
4. The method for efficiently and accurately machining the bottom surface of the valve seat of the four-way valve according to claim 3, which is characterized in that: the shape and the size of the workpiece grooves (42) on the upper surface and the lower surface of the double-sided planet wheel clamp (4) are matched with those of the valve seat part; the valve seat part height dimension is greater than the workpiece groove (42), and the valve seat part bottom surface is higher than and parallel to the planetary gear clamp surface (44).
5. The method for efficiently and accurately machining the bottom surface of the valve seat of the four-way valve according to claim 1, which is characterized in that: the rotation and revolution speeds of the double-sided planet wheel clamp (4) are controlled by the rotation speeds of the sun wheel (3) and the gear ring (2).
6. The method for efficiently and accurately machining the bottom surface of the valve seat of the four-way valve according to claim 5, which is characterized in that: the grinding disc (1) grinds the valve seat part bottom surface on the upper side of the double-sided planetary gear clamp (4) on the fixed abrasive particle ceramic, the grinding disc (5) grinds the valve seat part bottom surface on the lower side of the double-sided planetary gear clamp (4) on the fixed abrasive particle ceramic, and the upper grinding disc and the lower grinding disc grind the valve seat parts on the upper side and the lower side simultaneously.
7. The method for efficiently and accurately machining the bottom surface of the valve seat of the four-way valve according to claim 6, which is characterized in that: the grinding materials of the upper grinding disc (1) and the lower grinding disc (5) are alumina.
8. The efficient and high-precision machining method for the bottom surface of the valve seat of the four-way valve, as claimed in claim 7, is characterized by comprising the following steps: the workpiece grooves (42) on the two sides of the double-sided planet wheel clamp (4) are not communicated, and the number of the workpiece grooves (42) on the double-sided planet wheel clamp (4) is greater than 6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210580460.0A CN114850976B (en) | 2022-05-26 | 2022-05-26 | High-efficiency high-precision machining method for bottom surface of valve seat of four-way valve |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210580460.0A CN114850976B (en) | 2022-05-26 | 2022-05-26 | High-efficiency high-precision machining method for bottom surface of valve seat of four-way valve |
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| CN114850976A CN114850976A (en) | 2022-08-05 |
| CN114850976B true CN114850976B (en) | 2024-04-19 |
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| CN202210580460.0A Active CN114850976B (en) | 2022-05-26 | 2022-05-26 | High-efficiency high-precision machining method for bottom surface of valve seat of four-way valve |
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Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005066773A (en) * | 2003-08-26 | 2005-03-17 | Murata Mfg Co Ltd | Method of machining thickness of carrier for lapping |
| CN101134294A (en) * | 2007-09-21 | 2008-03-05 | 浙江工业大学 | Sphericity part fixed abrasive lapping method |
| CN102513915A (en) * | 2011-11-30 | 2012-06-27 | 江苏智邦精工科技有限公司 | Processing method of precision cylindrical part |
| CN103624676A (en) * | 2013-12-13 | 2014-03-12 | 济南玫德铸造有限公司 | Valve plate grinding machine |
| CN203495740U (en) * | 2013-09-17 | 2014-03-26 | 山东潍焦集团有限公司 | Plane grinding machine |
| CN104385121A (en) * | 2014-09-30 | 2015-03-04 | 无锡康柏斯机械科技有限公司 | Grinding bearing device for hard disk substrate grinder |
| CN105269452A (en) * | 2015-11-17 | 2016-01-27 | 四川制动科技股份有限公司 | Slide valve grinding clamp used for disc grinder and clamping method for slide valves |
| JP2016055381A (en) * | 2014-09-09 | 2016-04-21 | 信越半導体株式会社 | Lapping method |
| CN105834887A (en) * | 2016-05-31 | 2016-08-10 | 苏州速腾电子科技有限公司 | Eccentric grinding tool for small pieces |
| CN106425830A (en) * | 2016-11-14 | 2017-02-22 | 宜兴市晶科光学仪器有限公司 | Double-side grinding and polishing machine |
| CN206937073U (en) * | 2017-01-19 | 2018-01-30 | 吉姆西半导体科技（无锡）有限公司 | A kind of erratic star wheel of chemically mechanical polishing |
| CN108000243A (en) * | 2017-11-20 | 2018-05-08 | 杭州智谷精工有限公司 | A kind of biplane Polishing machining method |
| JP2019141974A (en) * | 2018-02-22 | 2019-08-29 | 株式会社ミズホ | Double side lapping machine and method for grinding thin fine ceramic using the same |
-
2022
- 2022-05-26 CN CN202210580460.0A patent/CN114850976B/en active Active
Patent Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005066773A (en) * | 2003-08-26 | 2005-03-17 | Murata Mfg Co Ltd | Method of machining thickness of carrier for lapping |
| CN101134294A (en) * | 2007-09-21 | 2008-03-05 | 浙江工业大学 | Sphericity part fixed abrasive lapping method |
| CN102513915A (en) * | 2011-11-30 | 2012-06-27 | 江苏智邦精工科技有限公司 | Processing method of precision cylindrical part |
| CN203495740U (en) * | 2013-09-17 | 2014-03-26 | 山东潍焦集团有限公司 | Plane grinding machine |
| CN103624676A (en) * | 2013-12-13 | 2014-03-12 | 济南玫德铸造有限公司 | Valve plate grinding machine |
| JP2016055381A (en) * | 2014-09-09 | 2016-04-21 | 信越半導体株式会社 | Lapping method |
| CN104385121A (en) * | 2014-09-30 | 2015-03-04 | 无锡康柏斯机械科技有限公司 | Grinding bearing device for hard disk substrate grinder |
| CN105269452A (en) * | 2015-11-17 | 2016-01-27 | 四川制动科技股份有限公司 | Slide valve grinding clamp used for disc grinder and clamping method for slide valves |
| CN105834887A (en) * | 2016-05-31 | 2016-08-10 | 苏州速腾电子科技有限公司 | Eccentric grinding tool for small pieces |
| CN106425830A (en) * | 2016-11-14 | 2017-02-22 | 宜兴市晶科光学仪器有限公司 | Double-side grinding and polishing machine |
| CN206937073U (en) * | 2017-01-19 | 2018-01-30 | 吉姆西半导体科技（无锡）有限公司 | A kind of erratic star wheel of chemically mechanical polishing |
| CN108000243A (en) * | 2017-11-20 | 2018-05-08 | 杭州智谷精工有限公司 | A kind of biplane Polishing machining method |
| JP2019141974A (en) * | 2018-02-22 | 2019-08-29 | 株式会社ミズホ | Double side lapping machine and method for grinding thin fine ceramic using the same |
Non-Patent Citations (1)
| Title |
|---|
| 陶瓷阀门密封面的研磨;田世忠;黄维华;;阀门;20110831(04);第16-17、20页 * |
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