CN108481186B - Valve seat grinding and pressing clamp capable of adjusting forward pressure - Google Patents
Valve seat grinding and pressing clamp capable of adjusting forward pressure Download PDFInfo
- Publication number
- CN108481186B CN108481186B CN201810572667.7A CN201810572667A CN108481186B CN 108481186 B CN108481186 B CN 108481186B CN 201810572667 A CN201810572667 A CN 201810572667A CN 108481186 B CN108481186 B CN 108481186B
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- CN
- China
- Prior art keywords
- mounting plate
- valve seat
- lower mounting
- clamping
- upper mounting
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- 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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Links
- 238000003825 pressing Methods 0.000 title abstract description 10
- 238000005056 compaction Methods 0.000 claims description 7
- 230000000149 penetrating effect Effects 0.000 claims description 2
- 238000012545 processing Methods 0.000 abstract description 4
- 238000000034 method Methods 0.000 description 5
- 230000005483 Hooke's law Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 230000008094 contradictory effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000005498 polishing Methods 0.000 description 2
- 238000012797 qualification Methods 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 210000005069 ears Anatomy 0.000 description 1
- 230000005489 elastic deformation Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 238000013519 translation Methods 0.000 description 1
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
- B24B37/00—Lapping machines or devices; Accessories
- B24B37/27—Work carriers
-
- 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
- B24B15/00—Machines or devices designed for grinding seat surfaces; Accessories therefor
- B24B15/04—Machines or devices designed for grinding seat surfaces; Accessories therefor on valve members
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Grinding And Polishing Of Tertiary Curved Surfaces And Surfaces With Complex Shapes (AREA)
- Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
Abstract
The invention discloses a valve seat grinding and pressing clamp capable of adjusting forward pressure, which relates to the field of grinding equipment and solves the problem of inaccurate control of the existing manual pressing force. The invention has the advantages of high accuracy, good stability and high processing efficiency.
Description
Technical Field
The invention relates to the field of grinding equipment, in particular to a valve seat grinding and compacting clamp capable of adjusting forward pressure.
Background
The air tightness is a key index of the reliability of the pump valve, in order to ensure the excellent sealing performance of the pump valve in the closed state, in the production and processing process of the pump valve, each valve core and the corresponding valve seat are required to be subjected to grinding process treatment, so that gaps exist when the valve core is matched with the valve seat due to surface processing errors, the valve core is matched with the valve seat more tightly after the grinding process, and the air tightness requirement of the valve core and the valve seat is met. In the grinding treatment process of the valve core and the valve seat, a forward pressure is required to be applied to the contact surface between the valve core and the valve seat, and the contact surface is scratched when the forward pressure is too large, otherwise, the effect of grinding the contact surface is not achieved.
In the pump valve enterprise production line, the valve core and the valve seat are polished by fixing the valve core on an automatic rotary workbench, coating polishing liquid on the polished surface of the valve seat, and pressing the valve core on the surface of the rotary valve core by a worker by holding the valve seat by hand, so as to perform polishing operation for a plurality of minutes. The grinding pressure applied to the contact surface of the valve core and the valve seat cannot be accurately controlled by the arm, so that the final grinding effect is poor, the air tightness of the produced pump valve cannot meet the requirement, and the hand-held valve seat is pressed on the rotating valve core, so that great production potential safety hazards exist.
Disclosure of Invention
In order to overcome the defects of the background technology, the invention provides the valve seat grinding and pressing clamp with high accuracy and simple operation and adjustable forward pressure.
The invention adopts the technical scheme that: the utility model provides a valve seat grinds compaction fixture of adjustable forward pressure, its includes parallel arrangement's last mounting panel and lower mounting panel, clamping mechanism for pressing from both sides tight valve seat is installed to the below of mounting panel down, go up the position department that the mounting panel corresponds clamping mechanism and install the runner dish that can follow the axial and go up and down, be equipped with between runner dish and the clamping mechanism and contradict respectively the two and pass the elastic component one of mounting panel down.
One surface of the wheel disc surface, which faces the mounting plate, is provided with a screw rod which is in threaded fit with the upper mounting plate and penetrates through the upper mounting plate.
The screw rod top is equipped with rather than normal running fit's indicator, the screw rod both sides are equipped with fixed mounting be in scale on the upper mounting plate, the indicator both ends have been seted up and have been dodged the recess of scale.
A plurality of studs are arranged between the upper mounting plate and the lower mounting plate and are arranged on the periphery, and opposite nuts clamped on two sides of the upper mounting plate are arranged at one end, close to the upper mounting plate, of each stud.
And a limit nut is arranged in the middle of the stud, and an elastic piece III which is respectively abutted against the limit nut and the lower mounting plate is arranged between the limit nut and the lower mounting plate.
The clamping mechanism comprises a base and a clamping seat, wherein the base is connected with the lower mounting plate, the clamping seat and the base are detachably arranged, and a movable semi-ring which is matched with the clamping seat and clamps the outer circumference of the valve seat is arranged on the clamping seat.
The clamping seat is provided with a semi-annular boss, one end of the movable semi-ring is hinged with one end of the semi-annular boss, and the other end of the movable semi-ring is connected with the other end of the semi-annular boss through a bolt.
The base is provided with a small bolt penetrating through the lower mounting plate, and an elastic piece II for abutting the small bolt and the lower mounting plate is arranged between the small bolt and the lower mounting plate.
And a buffer cushion is arranged between the base and the lower mounting plate.
Handles are arranged on two sides of the lower mounting plate, and a plurality of mounting lugs are arranged on one side of the upper mounting plate.
The beneficial effects of the invention are as follows: through the structure of this scheme, rotate the carousel, the screw rod drives carousel up-and-down motion, and runner dish compression elastic component is first when the downstream, applys a forward pressure to the disk seat through clamping mechanism, and the indicator and the scale of the screw rod other end show current pressure value, guarantee the accuracy and the stability of the pressure of appling, improve the grinding qualification rate of disk seat case, improve machining efficiency.
Drawings
FIG. 1 is a schematic diagram of a valve seat grinding and pressing clamp with adjustable forward pressure according to an embodiment of the invention.
Fig. 2 is a schematic diagram of a split structure of a valve seat grinding and pressing clamp with adjustable forward pressure according to an embodiment of the present invention.
FIG. 3 is a front view of a valve seat grinding and packing fixture with adjustable forward pressure in accordance with an embodiment of the present invention.
Detailed Description
Embodiments of the invention are further described below with reference to the accompanying drawings:
As shown in the figure, a valve seat grinding compaction fixture with adjustable forward pressure comprises an upper mounting plate 1 and a lower mounting plate 2 which are arranged in parallel, a clamping mechanism 3 used for clamping a valve seat is arranged below the lower mounting plate 2, a rotating wheel disc 4 capable of lifting along the axial direction is arranged at the position of the upper mounting plate 1 corresponding to the clamping mechanism 3, elastic pieces I5 which respectively collide with the rotating wheel disc 4 and penetrate through the lower mounting plate 2 are arranged between the rotating wheel disc 4 and the clamping mechanism 3, one surface of the rotating wheel disc 4 faces upwards the upper mounting plate 1 is provided with a screw rod 6 which is in threaded fit with the upper mounting plate 1 and penetrates through the upper mounting plate 1, through the structure of the scheme, the rotating wheel disc is rotated, the screw rod drives the rotating wheel disc to move up and down, the rotating wheel disc compresses the elastic pieces I during downward movement, the clamping mechanism applies forward pressure to the valve seat, and an indicator and a graduated scale at the other end of the screw rod displays the current pressure value, so that the accuracy and stability of the applied pressure are ensured, the grinding qualification rate of the valve seat is improved, and the processing efficiency is improved.
The top of the screw rod 6 is provided with an indicator 61 in rotation fit with the screw rod, two sides of the screw rod 6 are provided with graduated scales 7 fixedly installed on the upper mounting plate 1, two ends of the indicator 61 are provided with grooves 62 avoiding the graduated scales 7, the indicator adopted in the embodiment is driven by the screw rod to move up and down and does not rotate, the graduated scales are arranged in parallel with the screw rod, and the position pointed by the indicator is the pressure value received by the current valve seat.
A plurality of studs 8 are arranged between the upper mounting plate 1 and the lower mounting plate 2 and are arranged on the periphery, opposite top nuts 81 clamped on two sides of the upper mounting plate 1 are arranged at one end, close to the upper mounting plate 1, of each stud 8, and the opposite top nuts can be used for adjusting the horizontal state of the upper mounting plate.
The clamping mechanism 3 comprises a base 31 and a clamping seat 32 which are connected with the lower mounting plate 2, the clamping seat 32 and the base 31 are detachably mounted, a movable semi-ring 33 which is matched with the clamping seat 32 and clamps the outer circumference of the valve seat is mounted on the clamping seat 32, the clamping seat 32 is provided with a semi-ring-shaped boss 34, one end of the movable semi-ring 33 is hinged to one end of the semi-ring-shaped boss 34, and the other end of the movable semi-ring 33 is connected with the other end of the semi-ring-shaped boss 34 through a bolt.
The middle part position of double-screw bolt 8 is installed stop nut 82, be equipped with the elastic component three 83 of contradicting respectively between stop nut 82 and the mounting panel 2 down, install on the base 31 and pass the little bolt 9 of mounting panel 2 down, be equipped with the elastic component two 10 of contradicting between little bolt 9 and the mounting panel 2 down, after the case disk seat grinds the completion, when holding the handle and upwards mention the mounting panel down, elastic component two and elastic component three also cushioning effect, after putting down this structure, elastic component two and elastic component three provide a restoring force, make mounting panel and base resume the normal position down.
In addition, when the first elastic element applies a pressure to the base, the base and the lower mounting plate generate a gap with a certain size, and the second elastic element sleeved on the small bolt generates a restoring force with opposite directions, but because the valve seat and the valve core are mutually ground in the embodiment, the size of the gap is quite small, and the restoring force of the second elastic element is negligible.
The buffer cushion 21 is arranged between the base 31 and the lower mounting plate 2, so that the shock absorption function is achieved, and the service lives of the base and the lower mounting plate are prolonged.
The handles 22 are arranged on two sides of the lower mounting plate 2, and a plurality of mounting lugs 11 are arranged on one side of the upper mounting plate 1, so that the installation is convenient.
The clamping seat is also provided with a level detector 12 for accurately grasping the level position of the clamping seat.
The installation method of the embodiment comprises the following steps: when the indicator is at the '0' position of the graduated scale, namely the elastic piece is not compressed, the valve core is fixed on the rotary valve core grinding table, the valve seat matched with the valve core is arranged on the valve core, the clamping seat is arranged on the valve seat, the level gauge is used for detecting whether the structure is in a completely vertical state, and then the two fixed support ears of the upper support plate are fixed by bolts. For valve seats of the same model, the operation is not needed to be performed after the valve seats are installed; the valve seat clamping seat is required to be replaced when different types of valve seats are processed, nuts fixed on the valve seat clamping seat and the base plate of the base are loosened, the valve seat clamping seat with a new type is replaced, and the corresponding valve core height is also changed, so that the valve seat clamping seat is required to be reinstalled according to the steps.
The workflow of the present embodiment: the stiffness coefficient K and the compression length x of the spring meet Hooke's law when the elastic deformation stress of the spring does not exceed the yield limit: f=k×x. According to Hooke's law formula, this structure is through the runner dish of manual dialling area screw rod, wherein screw rod and last mounting panel are the screw pair cooperation, change screw rod rotary motion into the translation motion of the vertical direction of indicator, the distance on the scale that the indicator corresponds is first compressed length of elastic component, the stiffness coefficient K of elastic component is known, so according to Hooke's law can calculate the forward pressure that elastic component first applied to on the base this moment, according to the required forward pressure requirement of case and disk seat contact surface grinding, rotate the rim plate and make the indicator point to corresponding scale, the clamping seat is in the same place through bolted connection with the base, so the forward pressure that elastic component first produced transmits the disk seat clamping seat, the disk seat is fastened in the disk seat clamping seat, then the invariable forward pressure that elastic component first produced transmits to the case and disk seat contact surface.
After the grinding time of the valve seat is reached, the rotary valve core workbench is closed, the manual rotary wheel disc releases the pressure of the first elastic element until the vernier finger reaches the scale of 0, the inner hexagonal wrench is used for loosening the bolts used for clamping the valve seat by the movable semi-ring and the semi-annular boss, the movable semi-ring is opened, the handle is held by two hands to vertically lift the mounting plate upwards, and the third elastic element is compressed to generate reverse pressure to prepare for resetting. The three small bolts uniformly distributed penetrate through the lower mounting plate and are connected with the base, the base and the buffer cushion are pressed on the lower mounting plate through the elasticity of the second elastic piece, when the lower mounting plate moves upwards, the second elastic piece generates deformation to resist the gravity of the base and the valve seat clamping seat connected below the small bolts, the base and the valve seat clamping seat move upwards together until the valve seat is separated from the valve seat clamping seat, the valve seat is taken down from the valve core, the handles are loosened by two hands, the lower mounting plate is pressed by the third elastic piece in a resetting mode, and grinding of the single-side valve core and the valve seat is completed;
the valve core on the grinding table is changed to the other side, grinding liquid is coated on the surface of the valve core to be ground, a handle is held by a hand to lift the lower mounting plate upwards, then the valve seat is placed on the valve core, the handle is loosened to enable the valve seat to enter the clamping seat, the movable half ring is closed, the bolt is locked by the inner hexagonal wrench, and the valve seat does not rotate relatively in the clamping seat. And (3) rotating the rotary wheel disc to perform the pressing operation, finishing grinding two sides of one valve core, replacing the next group of valve cores and valve seats, and circularly reciprocating.
In the description of the present invention, it should be noted that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art. Furthermore, in the description of the present invention, unless otherwise indicated, the meaning of "a plurality" is two or more.
The skilled person will know: while the invention has been described in terms of the foregoing embodiments, the inventive concepts are not limited to the invention, and any modifications that use the inventive concepts are intended to be within the scope of the appended claims.
Claims (5)
1. Valve seat grinding compaction fixture capable of adjusting forward pressure is characterized in that: the automatic valve seat clamping device comprises an upper mounting plate (1) and a lower mounting plate (2) which are arranged in parallel, wherein a clamping mechanism (3) for clamping a valve seat is arranged below the lower mounting plate (2), a rotating wheel disc (4) which can lift along the axial direction is arranged at the position of the upper mounting plate (1) corresponding to the clamping mechanism (3), and an elastic piece I (5) which is respectively in contact with the rotating wheel disc (4) and passes through the lower mounting plate (2) is arranged between the rotating wheel disc (4) and the clamping mechanism (3);
A plurality of studs (8) arranged on the periphery are arranged between the upper mounting plate (1) and the lower mounting plate (2), and opposite nuts (81) clamped at two sides of the upper mounting plate (1) are arranged at one end, close to the upper mounting plate (1), of each stud (8);
A limiting nut (82) is arranged in the middle of the stud (8), and an elastic piece III (83) which is respectively abutted against the limiting nut (82) and the lower mounting plate (2) is arranged between the limiting nut and the lower mounting plate;
The clamping mechanism (3) comprises a base (31) connected with the lower mounting plate (2) and a clamping seat (32), the clamping seat (32) and the base (31) are detachably installed, and the clamping seat (32) is provided with a movable semi-ring (33) which is matched with the clamping seat and clamps the outer circumference of the valve seat;
The clamping seat (32) is provided with a semi-annular boss (34), one end of the movable semi-ring (33) is hinged with one end of the semi-annular boss (34), and the other end of the movable semi-ring (33) is connected with the other end of the semi-annular boss (34) through a bolt;
The base (31) is provided with a small bolt (9) penetrating through the lower mounting plate (2), and an elastic piece II (10) which is in contact with the small bolt (9) and the lower mounting plate (2) is arranged between the small bolt and the lower mounting plate (2).
2. The adjustable forward pressure valve seat grinding compaction fixture of claim 1, wherein: one surface of the rotating wheel disc (4) facing the upper mounting plate (1) is provided with a screw rod (6) which is in threaded fit with the upper mounting plate (1) and penetrates through the upper mounting plate (1).
3. The adjustable forward pressure valve seat grinding compaction fixture of claim 2, wherein: the top of the screw rod (6) is provided with an indicating piece (61) in running fit with the screw rod, two sides of the screw rod (6) are provided with graduated scales (7) fixedly installed on the upper mounting plate (1), and two ends of the indicating piece (61) are provided with grooves (62) avoiding the graduated scales (7).
4. The adjustable forward pressure valve seat grinding compaction fixture of claim 1, wherein: a buffer pad (21) is arranged between the base (31) and the lower mounting plate (2).
5. The adjustable forward pressure valve seat grinding compaction fixture of claim 1, wherein: handles (22) are arranged on two sides of the lower mounting plate (2), and a plurality of mounting lugs (11) are arranged on one side of the upper mounting plate (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810572667.7A CN108481186B (en) | 2018-06-06 | 2018-06-06 | Valve seat grinding and pressing clamp capable of adjusting forward pressure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810572667.7A CN108481186B (en) | 2018-06-06 | 2018-06-06 | Valve seat grinding and pressing clamp capable of adjusting forward pressure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108481186A CN108481186A (en) | 2018-09-04 |
| CN108481186B true CN108481186B (en) | 2024-05-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810572667.7A Active CN108481186B (en) | 2018-06-06 | 2018-06-06 | Valve seat grinding and pressing clamp capable of adjusting forward pressure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108481186B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111805356A (en) * | 2020-06-19 | 2020-10-23 | 大唐七台河发电有限责任公司 | Quick grinder of stop valve |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB821703A (en) * | 1956-08-14 | 1959-10-14 | Crane Packing Co | Improvements in or relating to lapping machines |
| GB847719A (en) * | 1958-05-21 | 1960-09-14 | Dewrance & Co | Improvements in lapping machines |
| CN101954610A (en) * | 2010-02-01 | 2011-01-26 | 杭州耐特阀门有限公司 | Sealing surface free-grinding repairing method of slurry valve |
| CN203156419U (en) * | 2013-03-28 | 2013-08-28 | 寿光宝隆石油器材有限公司 | Rotary tool for lathe |
| CN203221385U (en) * | 2013-05-09 | 2013-10-02 | 杨中海 | Crystal and glass triangular bar circulating grinding machine |
| CN104551976A (en) * | 2013-10-29 | 2015-04-29 | 上海上冶阀门制造有限公司 | Multifunctional self-adaption ball valve grinding miller |
| CN105729270A (en) * | 2016-02-29 | 2016-07-06 | 苏州纽威阀门股份有限公司 | Grinding mechanism for valve core and valve seat |
| CN107186574A (en) * | 2017-07-21 | 2017-09-22 | 迅达科技集团股份有限公司 | A kind of plug valve of gas stove grinder and its Ginding process |
| KR200485015Y1 (en) * | 2017-02-06 | 2017-11-20 | 유제수 | Lapping device for polishing seat suface of valve |
| CN206825014U (en) * | 2017-05-05 | 2018-01-02 | 无锡先导智能装备股份有限公司 | Clamping device |
| CN107571143A (en) * | 2017-09-22 | 2018-01-12 | 云南冶金新立钛业有限公司 | The lapping device of air valve seat |
| CN107627198A (en) * | 2017-08-30 | 2018-01-26 | 重庆市永川区泰兴机械厂 | Sanding apparatus for boat diesel engine |
| CN208262567U (en) * | 2018-06-06 | 2018-12-21 | 温州大学 | A kind of valve seat grinding compressing fixture of adjustable positive pressure |
-
2018
- 2018-06-06 CN CN201810572667.7A patent/CN108481186B/en active Active
Patent Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB821703A (en) * | 1956-08-14 | 1959-10-14 | Crane Packing Co | Improvements in or relating to lapping machines |
| GB847719A (en) * | 1958-05-21 | 1960-09-14 | Dewrance & Co | Improvements in lapping machines |
| CN101954610A (en) * | 2010-02-01 | 2011-01-26 | 杭州耐特阀门有限公司 | Sealing surface free-grinding repairing method of slurry valve |
| CN203156419U (en) * | 2013-03-28 | 2013-08-28 | 寿光宝隆石油器材有限公司 | Rotary tool for lathe |
| CN203221385U (en) * | 2013-05-09 | 2013-10-02 | 杨中海 | Crystal and glass triangular bar circulating grinding machine |
| CN104551976A (en) * | 2013-10-29 | 2015-04-29 | 上海上冶阀门制造有限公司 | Multifunctional self-adaption ball valve grinding miller |
| CN105729270A (en) * | 2016-02-29 | 2016-07-06 | 苏州纽威阀门股份有限公司 | Grinding mechanism for valve core and valve seat |
| KR200485015Y1 (en) * | 2017-02-06 | 2017-11-20 | 유제수 | Lapping device for polishing seat suface of valve |
| CN206825014U (en) * | 2017-05-05 | 2018-01-02 | 无锡先导智能装备股份有限公司 | Clamping device |
| CN107186574A (en) * | 2017-07-21 | 2017-09-22 | 迅达科技集团股份有限公司 | A kind of plug valve of gas stove grinder and its Ginding process |
| CN107627198A (en) * | 2017-08-30 | 2018-01-26 | 重庆市永川区泰兴机械厂 | Sanding apparatus for boat diesel engine |
| CN107571143A (en) * | 2017-09-22 | 2018-01-12 | 云南冶金新立钛业有限公司 | The lapping device of air valve seat |
| CN208262567U (en) * | 2018-06-06 | 2018-12-21 | 温州大学 | A kind of valve seat grinding compressing fixture of adjustable positive pressure |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108481186A (en) | 2018-09-04 |
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