CN114161314B - Pneumatic suspension type process equipment and method for honing valve hole of high-pressure valve body - Google Patents
Pneumatic suspension type process equipment and method for honing valve hole of high-pressure valve body Download PDFInfo
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- CN114161314B CN114161314B CN202111293693.4A CN202111293693A CN114161314B CN 114161314 B CN114161314 B CN 114161314B CN 202111293693 A CN202111293693 A CN 202111293693A CN 114161314 B CN114161314 B CN 114161314B
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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
- B24B41/00—Component parts such as frames, beds, carriages, headstocks
- B24B41/06—Work supports, e.g. adjustable steadies
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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
- B24B33/00—Honing machines or devices; Accessories therefor
- B24B33/02—Honing machines or devices; Accessories therefor designed for working internal surfaces of revolution, e.g. of cylindrical or conical shapes
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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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/20—Hydro energy
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Geometry (AREA)
- Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
Abstract
The invention discloses pneumatic suspension type technological equipment and a method for honing a valve hole of a high-pressure valve body, wherein the pneumatic suspension type technological equipment comprises a pressing device, a positioning device and a transverse moving positioning device, the pressing device comprises a hydraulic oil cylinder, an oil cylinder connecting seat, a handle, a pre-positioning pin, a cover plate, a compression spring, a second guide rail and a bottom plate, the hydraulic oil cylinder and the oil cylinder connecting seat are connected to the bottom plate through a connecting bolt, and the clamping and the loosening of the positioning device are realized by drawing in and pushing out of the oil cylinder; and a boss is arranged on the prepositioning pin, and a space formed by the boss and the countersunk hole on the second guide rail is used for placing a compression spring. Because the static pressure pneumatic suspension, the limiting pin and the hydraulic clamping are adopted, the labor intensity in the valve body carrying process can be effectively reduced, the positioning is stable, the clamping is quick and reliable, the precision requirement of a valve body hole can be ensured, and the product quality is improved; and moreover, alignment is not needed, hydraulic clamping is fast, production line type production is realized, and the production efficiency is greatly improved in batch production.
Description
Technical Field
The invention relates to the technical field of honing machine tool process equipment manufacturing, in particular to pneumatic suspension type process equipment and a method for honing a valve hole of a high-pressure valve body.
Background
The valve body is an indispensable important component part in the hydraulic control valve, the valve core matching holes of the valve body part are large in quantity and have very high requirements on size and form and position tolerance, the valve hole size tolerance zone of a general valve body is 0.008-0.01, the roughness of the hole is Ra0.2, the cylindricity of the hole requires 0.005, and the process for processing the valve hole of the valve body in the prior art is as follows: the machining center machines the valve hole to a size before honing, and then uses a honing machine to hone the valve hole.
However, because the valve body parts are heavy, the number of valve holes to be honed is large, the valve body needs to be frequently moved to be honed during honing, time and labor are wasted, and a machine tool platform is easily scratched, so that the honing efficiency of the parts is low in the processing process of honing the valve body, and the production progress of products is seriously influenced.
Disclosure of Invention
1. Technical problem to be solved
The invention aims to solve the problems that in the prior art, the valve body part is heavy, the number of valve holes to be honed is large, the valve body needs to be frequently moved to be honed during honing, and time and labor are wasted.
2. Technical scheme
In order to achieve the purpose, the invention adopts the following technical scheme:
a pneumatic suspension type technological device for honing a valve hole of a high-pressure valve body comprises a pressing device, a positioning device and a transverse moving positioning device, wherein the pressing device comprises a hydraulic oil cylinder, an oil cylinder connecting seat, a handle, a pre-positioning pin, a cover plate, a compression spring, a second guide rail and a bottom plate;
the pre-positioning pin is provided with a boss, and a space formed by the boss and the countersunk hole on the second guide rail is used for placing a compression spring; the handle is fixed with a pre-positioning pin through two hexagonal bolts which are uniformly distributed in the radial direction, the pre-positioning pin is in an extending state by default in an initial state after installation is completed, and a compression spring provides restoring force of the pre-positioning pin;
the positioning device comprises a base plate, a following positioning plate, a positioning block, a stop block, a first positioning pin, a second positioning pin and a positioning sleeve, wherein the base plate is positioned on the following positioning plate through a socket head cap screw and is used for leveling a valve body workpiece to be honed;
the positioning block is arranged on the following positioning plate and used for positioning the mounting position of the valve body assembly, the long side surfaces of the two ends of the upper top surface of the positioning plate are provided with stop blocks, and the hydraulic oil cylinder realizes the positioning of the following positioning plate through a press block;
the transverse moving positioning device comprises an air floatation positioning plate, a side positioning plate, a support nail and a first guide rail; the air-floating positioning plate is internally provided with air passages which are communicated with each other, and the bottom surface of the air-floating positioning plate is provided with two exhaust diffusion grooves which are the same as the air passages and are used for increasing the contact area of exhaust;
the bottom plate is provided with an air path interface which can be connected with the outside and provides air inlet, air enters an air path in the air floatation positioning plate through an exhaust diffusion groove on the bottom surface of the air floatation positioning plate and is transmitted to the other exhaust diffusion groove on the bottom surface, and the air floatation positioning plate is not contacted with the bottom surface through the two exhaust diffusion grooves, so that pneumatic suspension is realized.
Preferably, the positioning sleeve is fixed in a countersunk hole in the lower bottom surface of the positioning plate through an inner hexagonal socket head cap screw.
Preferably, two first positioning pins are mounted on the top surface of the air-floatation positioning plate and matched with positioning sleeves on the accompanying positioning plate to position the accompanying positioning plate.
Preferably, the first guide rail and the second guide rail are provided with protruding edges, and the bottom surfaces of the protruding edges and the air floatation positioning plate are provided with a gap of 0.5mm, so that the air floatation positioning plate is prevented from being too high in amplitude due to too high air pressure.
Preferably, two stop blocks are installed on the short side surfaces of the air floatation positioning plate, and support nails installed on the side positioning plates at the two ends of the bottom plate are connected to be used as hard limit positions of a transverse moving area formed by the first guide rail and the second guide rail of the air floatation positioning plate.
Preferably, the air flotation positioning plate is internally provided with air passage holes which are communicated with each other, plugs are arranged at two ends of the side surface, and the air flotation positioning plate can be detached and cleaned under the condition that the plugs can occur again.
Preferably, the cover plate is fixed on the stepped hole of the second guide rail through 4 uniformly distributed hexagon bolts.
The invention also provides a clamping process for honing the static pressure pneumatic suspension type valve body hole, which comprises the following steps:
step 1: connecting the bottom plate with a machine tool workbench;
step 2: placing the valve body on the following positioning plate;
and step 3: connecting the valve body and the following positioning plate on the air flotation positioning plate;
and 4, step 4: opening an air source;
and 5: after the valve body is pushed to the corresponding position, the pre-positioning pin and the second positioning pin are inserted;
step 6: closing the gas source;
and 7: honing a valve body hole;
and 8: and after the valve body hole is honed, opening the air source, pulling the pre-positioning pin and the second positioning pin open, pushing the valve body to the next station, inserting the limiting pin and the second positioning pin, and closing the air source.
3. Advantageous effects
Compared with the prior art, the invention has the advantages that:
according to the invention, because the static pressure pneumatic suspension, the limiting pin and the hydraulic clamping are adopted, the labor intensity in the valve body carrying process can be effectively reduced, the positioning is stable, the clamping is rapid and reliable, the precision requirement of a valve body hole can be ensured, and the product quality is improved; and moreover, alignment is not needed, hydraulic clamping is fast, production line type production is realized, and the production efficiency is greatly improved in batch production.
Drawings
FIG. 1 is a schematic structural view of the air-floating positioning plate;
FIG. 2 is a structural diagram of technological equipment for honing a hole of a hydrostatic pneumatic suspension valve body;
FIG. 3 is a schematic structural diagram of the positioning device according to the embodiment;
fig. 4 is an enlarged schematic view of a detail side of the embodiment.
In the figure: 1. a hydraulic cylinder; 2. an oil cylinder connecting seat; 3. a handle; 4. pre-positioning pins; 5. a cover plate; 6. a compression spring; 7. a backing plate; 8. a following positioning plate; 9. positioning blocks; 10. a stopper; 11. a first positioning pin; 12. a second guide rail; 13. a second positioning pin; 14, positioning sleeves; 15. an air flotation positioning plate; 16. a side positioning plate; 17. a support pin; 18 a first guide rail; 19. a base plate.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
Example 1:
referring to fig. 1-4, a pneumatic suspension type process device for honing a valve hole of a high-pressure valve body comprises a pressing device, a positioning device and a transverse moving positioning device, wherein the pressing device comprises a hydraulic oil cylinder 1, an oil cylinder connecting seat 2, a handle 3, a pre-positioning pin 4, a cover plate 5, a compression spring 6, a second guide rail 12 and a bottom plate 19, the hydraulic oil cylinder 1 and the oil cylinder connecting seat 2 are connected to the bottom plate 19 through connecting bolts, the positioning device is clamped and loosened by drawing and pushing the oil cylinder, and the cover plate 5 is fixed on a stepped hole of the second guide rail 12 through 4 uniformly distributed hexagon bolts;
in the invention, a boss is arranged on the prepositioning pin 4, and a space formed by the boss and a countersunk hole on the second guide rail 12 is used for placing the compression spring 6; the handle 3 is fixed with the pre-positioning pin 4 through two hexagonal bolts which are uniformly distributed in the radial direction, the pre-positioning pin is in an extending state by default in an initial state after installation, and the compression spring 6 provides restoring force of the pre-positioning pin 4;
according to the honing device, the positioning device comprises a base plate 7, a following positioning plate 8, a positioning block 9, a stop block 10, a first positioning pin 11, a second positioning pin 13 and a positioning sleeve 14, wherein the base plate 7 is positioned on the following positioning plate 8 through a socket head cap screw and is used for leveling a valve body workpiece to be honed, and the positioning sleeve 14 is fixed in a countersunk hole in the lower bottom surface of the positioning plate 8 through the socket head cap screw;
in the invention, a positioning block 9 is arranged on a following positioning plate 8 and used for positioning the installation position of a valve body assembly, stop blocks 10 are arranged on the long side surfaces of the two ends of the top surface of the positioning plate 8, and a hydraulic oil cylinder 1 realizes the positioning of the following positioning plate 8 through a pressing block;
in the invention, the transverse moving positioning device comprises an air floatation positioning plate 15, a side positioning plate 16, a support nail 17 and a first guide rail 18; the air-float positioning plate 15 is internally provided with air passages which are communicated with each other, and the bottom surface of the air-float positioning plate is provided with two exhaust diffusion grooves which are the same as the air passages and are used for increasing the contact area of exhaust;
in the invention, the first guide rail 18 and the second guide rail 12 are provided with the convex edges, and the bottom surfaces of the convex edges and the air floatation positioning plate 15 have a gap of 0.5mm, so that the air floatation positioning plate is prevented from being too high in amplitude due to too high air pressure;
in the invention, two stoppers 10 are arranged on the short side surface of an air floatation positioning plate 15, and support nails 17 arranged on side positioning plates 16 at two ends of a bottom plate 19 are connected to be used as hard limit positions of a transverse moving area formed by a first guide rail 18 and a second guide rail 12 of the air floatation positioning plate;
in the invention, two first positioning pins 11 are arranged on the top surface of an air floatation positioning plate 15 and are matched with positioning sleeves 14 on a following positioning plate 8 to position the position of the following positioning plate;
in the invention, an air passage interface which can be connected with the outside is arranged on the bottom plate 19 to provide air inlet, air enters an air passage in the air floatation positioning plate 15 through one exhaust diffusion groove on the bottom surface of the air floatation positioning plate 15 and is transmitted to the other exhaust diffusion groove on the bottom surface, the air floatation positioning plate 15 is not contacted with the bottom surface 119 through the two exhaust diffusion grooves, thereby realizing pneumatic suspension, communicated air passage holes are arranged in the air floatation positioning plate 15, plugs are arranged at two ends of the side surface, and the air floatation positioning plate can be detached and cleaned under the condition that the plugs are generated.
The invention discloses a clamping process for honing a hole of a static pressure pneumatic suspension type valve body, which comprises the following steps of:
step 1: connecting the base plate 19 with a machine tool table;
step 2: placing the valve body on the accompanying positioning plate 8;
and step 3: connecting the valve body and the following positioning plate 8 to an air floatation positioning plate 15;
and 4, step 4: opening a gas source;
and 5: after the valve body is pushed to the corresponding position, the pre-positioning pin 4 and the second positioning pin 13 are inserted;
step 6: closing the gas source;
and 7: honing a valve body hole;
and 8: after the valve body hole is honed, the air source is opened, the pre-positioning pin 4 and the second positioning pin 13 are pulled open, the valve body is pushed to the next station, the limiting pin 4 and the second positioning pin 13 are inserted, and the air source is closed.
According to the invention, because a static pressure pneumatic suspension structure is adopted, the position is limited in a pre-positioning pin mode, after clamping is completed, the clamping is rapid and reliable, the size precision of valve body hole honing can be ensured, and the product quality is improved; and moreover, alignment is not needed, hydraulic clamping is fast, production line type production is realized, and the production efficiency is greatly improved in batch production.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (8)
1. A pneumatic suspension type technological device for honing a valve hole of a high-pressure valve body comprises a pressing device, a positioning device and a transverse moving positioning device, and is characterized in that the pressing device comprises a hydraulic oil cylinder (1), an oil cylinder connecting seat (2), a handle (3), a pre-positioning pin (4), a cover plate (5), a compression spring (6), a second guide rail (12) and a bottom plate (19), wherein the hydraulic oil cylinder (1) and the oil cylinder connecting seat (2) are connected to the bottom plate (19) through connecting bolts, and the positioning device is clamped and loosened by drawing and pushing the oil cylinder;
a boss is arranged on the pre-positioning pin (4), and a space formed by the boss and a countersunk hole on the second guide rail (12) is used for placing a compression spring (6); the handle (3) is fixed with the pre-positioning pin (4) through two hexagonal bolts which are uniformly distributed in the radial direction, the pre-positioning pin is in an extending state by default in an initial state after installation is completed, and the compression spring (6) provides restoring force of the pre-positioning pin (4);
the positioning device comprises a base plate (7), a following positioning plate (8), a positioning block (9), a stop block (10), a first positioning pin (11), a second positioning pin (13) and a positioning sleeve (14), wherein the base plate (7) is positioned on the following positioning plate (8) through a cylindrical head hexagon socket head cap screw and is used for flatly cushioning a valve body workpiece to be honed;
the positioning block (9) is mounted on the following positioning plate (8) and used for positioning the mounting position of the valve body assembly, the long side faces of the two ends of the top face of the following positioning plate (8) are provided with stop blocks (10), and the hydraulic oil cylinder (1) is used for positioning the following positioning plate (8) through a press block;
the transverse moving positioning device comprises an air floatation positioning plate (15), a side positioning plate (16), a supporting nail (17) and a first guide rail (18); the air-floating positioning plate (15) is internally provided with mutually communicated air paths, and the bottom surface of the air-floating positioning plate is provided with two exhaust diffusion grooves communicated with the air paths for increasing the contact area of exhaust;
the bottom plate (19) is provided with an air path interface connected with the outside to provide air inlet, air enters an air path in the air floating positioning plate (15) through an exhaust diffusion groove on the bottom surface of the air floating positioning plate (15) and is transferred to the other exhaust diffusion groove on the bottom surface, and the air floating positioning plate (15) is not in contact with the bottom plate (19) through the two exhaust diffusion grooves, so that pneumatic suspension is realized.
2. The pneumatic suspension type process equipment for honing the valve hole of the high-pressure valve body according to claim 1, wherein the positioning sleeve (14) is fixed in a countersunk hole in the lower bottom surface of the accompanying positioning plate (8) through a hexagon socket head cap screw.
3. The pneumatic suspension type technological equipment for honing the valve hole of the high-pressure valve body according to the claim 1, wherein the top surface of the air-floating positioning plate (15) is provided with two first positioning pins (11) which are matched with positioning sleeves (14) on the accompanying positioning plate (8) to position the accompanying positioning plate.
4. The pneumatic suspension type technological equipment for honing the valve hole of the high-pressure valve body is characterized in that the first guide rail (18) and the second guide rail (12) are provided with raised edges, and the bottom surfaces of the raised edges are spaced from the air floatation positioning plate (15) by 0.5mm, so that the air floatation positioning plate is prevented from being too high in amplitude due to too high air pressure.
5. The pneumatic suspension type process equipment for honing the valve hole of the high-pressure valve body as claimed in claim 1, wherein the air floating positioning plate (15) is provided with two stoppers (10) at the upper side, and is connected with support nails (17) arranged on side positioning plates (16) at two ends of a bottom plate (19) to serve as hard limit positions of a transverse moving area formed by a first guide rail (18) and a second guide rail (12) of the air floating positioning plate.
6. The pneumatic suspension type process equipment for honing the valve hole of the high-pressure valve body according to claim 1, wherein the air-floating positioning plate (15) is internally provided with air passage holes which are communicated with each other, and plugs are arranged at two ends of the side surface, so that the air-floating positioning plate can be detached and cleaned in case of blockage.
7. The pneumatic suspension type technological equipment for honing the valve hole of the high-pressure valve body is characterized in that the cover plate (5) is fixed on the stepped hole of the second guide rail (12) through 4 uniformly distributed hexagon bolts.
8. The clamping process of the pneumatic suspension type process equipment for the honing process of the valve hole of the high-pressure valve body as claimed in any one of claims 1 to 7, is characterized by comprising the following steps:
step 1: connecting the base plate (19) with a machine tool workbench;
step 2: placing the valve body on a following positioning plate (8);
and step 3: connecting the valve body and the following positioning plate (8) on an air floatation positioning plate (15);
and 4, step 4: opening a gas source;
and 5: after the valve body is pushed to the corresponding position, the pre-positioning pin (4) and the second positioning pin (13) are inserted;
step 6: closing the gas source;
and 7: honing a valve body hole;
and 8: after the honing of the valve body hole is completed, the air source is opened, the pre-positioning pin (4) and the second positioning pin (13) are pulled open, the valve body is pushed to the next station, the pre-positioning pin (4) and the second positioning pin (13) are inserted, and the air source is closed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111293693.4A CN114161314B (en) | 2021-11-03 | 2021-11-03 | Pneumatic suspension type process equipment and method for honing valve hole of high-pressure valve body |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111293693.4A CN114161314B (en) | 2021-11-03 | 2021-11-03 | Pneumatic suspension type process equipment and method for honing valve hole of high-pressure valve body |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114161314A CN114161314A (en) | 2022-03-11 |
| CN114161314B true CN114161314B (en) | 2023-02-03 |
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| CN202111293693.4A Active CN114161314B (en) | 2021-11-03 | 2021-11-03 | Pneumatic suspension type process equipment and method for honing valve hole of high-pressure valve body |
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Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4326831A (en) * | 1976-05-10 | 1982-04-27 | Bergman Raymond A | Apparatus for transferring a workpiece in an air float system |
| US4174828A (en) * | 1976-05-10 | 1979-11-20 | Bergman Raymond A | Bayonet clamping apparatus for machine tools |
| CH682643A5 (en) * | 1990-09-28 | 1993-10-29 | Serdi | Method and apparatus for centering a guide pin in a valve guide for the purpose of precision machining of a valve seat. |
| JP2000176762A (en) * | 1998-12-17 | 2000-06-27 | Canon Inc | Positioning device |
| JP4421431B2 (en) * | 2004-09-16 | 2010-02-24 | 住友重機械工業株式会社 | Stage slider mechanism |
| CN204171800U (en) * | 2014-10-31 | 2015-02-25 | 苏州怡信光电科技有限公司 | Vertical and high-speed machining center |
| CN205111287U (en) * | 2015-11-04 | 2016-03-30 | 郑州骏骉汽车科技有限公司 | Linear motion mechanism |
| CN212601149U (en) * | 2020-06-08 | 2021-02-26 | 南通新冯精密机械有限公司 | Automatic reset jig for air floatation supporting plate |
| CN212444766U (en) * | 2020-06-08 | 2021-02-02 | 南通新冯精密机械有限公司 | Air floatation jig for accurately positioning porous machining |
| CN113043032A (en) * | 2021-03-29 | 2021-06-29 | 华辰精密装备（昆山）股份有限公司 | Frame moving device of machining tool |
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2021
- 2021-11-03 CN CN202111293693.4A patent/CN114161314B/en active Active
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