CN219901126U - Milling clamp for check valve baffle - Google Patents
Milling clamp for check valve baffle Download PDFInfo
- Publication number
- CN219901126U CN219901126U CN202321721918.6U CN202321721918U CN219901126U CN 219901126 U CN219901126 U CN 219901126U CN 202321721918 U CN202321721918 U CN 202321721918U CN 219901126 U CN219901126 U CN 219901126U
- Authority
- CN
- China
- Prior art keywords
- check valve
- valve baffle
- upper clamping
- sleeve
- clamping body
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 238000003801 milling Methods 0.000 title claims abstract description 16
- 238000003754 machining Methods 0.000 claims description 4
- 239000000696 magnetic material Substances 0.000 claims description 3
- 230000002093 peripheral effect Effects 0.000 claims description 3
- 238000000034 method Methods 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 239000012530 fluid Substances 0.000 description 9
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000004888 barrier function Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Check Valves (AREA)
Abstract
The utility model relates to the field of valve production, in particular to a milling fixture for a check valve baffle, which consists of a circular plate and a handle piece which are integrally formed, wherein the milling fixture comprises an upper clamping body and a lower shaft body, an inner counter bore is arranged at the central axis position of the upper clamping body, a detachable check valve baffle sleeve is embedded in the inner counter bore, the check valve baffle sleeve is a left half bud sleeve and a right half bud sleeve which are symmetrically designed and can be opened and closed, the left half bud sleeve and the right half bud sleeve are encircled to form a hollow cylindrical shape, the circular plate of the check valve baffle is arranged between the left half bud sleeve and the right half bud sleeve in a tight fit mode, a notch which is clamped with the handle piece is further arranged on the side wall of the left half bud sleeve or the right half bud sleeve, and the upper plane of the check valve baffle sleeve is kept at the same height as the upper plane of the upper clamping body after the check valve baffle sleeve is embedded in the upper clamping body. The design reduces the clamping time of turning, is quick to assemble, belongs to special fixture, and is convenient for high-precision turning of the check valve baffle upper surface assembly groove.
Description
Technical Field
The utility model relates to the field of valve production, in particular to a milling fixture for a check valve baffle.
Background
The check valve flap of the valve is a means for preventing the backflow of the medium. It is typically made of a metallic material and the check valve flap is typically comprised of a movable flap that can be automatically closed or opened by fluid pressure. The valve flap is generally circular or hemispherical and can seal against a valve seat within the valve. The primary function of the check valve flap is to prevent backflow of fluid after the valve is closed. When fluid flows in from the inlet of the valve, the flap opens, allowing fluid to pass. However, when the direction of the fluid changes, attempting to reverse flow, the pressure of the fluid will cause the valve flap to close, thereby preventing the fluid from continuing to reverse flow.
Check valve barriers are widely used in many industrial and residential applications, such as in water supply systems, sewage treatment, petroleum and chemical industries, and the like. It protects the equipment and the pipes from damage caused by backflow while ensuring that the fluid flows in a certain direction.
The check valve baffle plate shown in fig. 1 is cast and molded by a die in advance, and because of the control fluid, the matching precision between the check valve baffle plate and the valve is higher in installation, and the precision after casting and molding can not meet the design requirement, so that the check valve baffle plate needs to be washed and finish-milled again, and a groove step is machined on the check valve baffle plate in a plane so as to be matched with the valve in high precision in assembly. But because the special-shaped structure is adopted, and the check valve baffle plate is thin and is not well clamped during finish milling, a clamp specially installed on a lathe is required to be designed, so that the technical problem that the check valve baffle plate is not well clamped during finish milling is solved.
Disclosure of Invention
In order to solve the technical problems, the utility model aims to provide a milling fixture for a check valve baffle plate, so as to solve the technical problem that the check valve baffle plate is not well clamped during finish milling.
In order to achieve the above object, the technical scheme of the present utility model is as follows:
the milling fixture for the check valve baffle consists of an integrally formed circular plate and a handle piece, the machining fixture comprises an upper clamping body and a lower shaft body which are integrally formed, the diameter of the upper clamping body is larger than that of the lower shaft body, the upper clamping body and the lower shaft body keep coaxiality,
the utility model discloses a check valve baffle cover, including the left side bud cover and right side bud cover, including the middle counter bore is equipped with in the axis position department of last centre gripping body, including the counter bore, the detachable check valve baffle cover has in the counter bore, the check valve baffle cover is symmetrical design and can open, closed left side bud cover and right side bud cover, left side bud cover and right side bud cover enclose and be a hollow cylindrical shape, the plectane of its check valve baffle is at the centre of the left side bud cover and right side bud cover that can enclose together with close fit mode, and still be equipped with the breach of joint handle piece on the lateral wall of left side bud cover or right side bud cover, the check valve baffle cover is gone up its upper plane and is kept the co-altitude with the upper plane of last centre gripping body after the clamp body is gone up in the embedding.
Preferably, the left half bud sleeve and the right half bud sleeve are made of magnetic materials with mutual attraction.
Preferably, the handle piece is T-shaped, the vertical end part of the handle piece is integrally connected with the circular plate, a low-level step positioned in the peripheral direction of the notch is arranged on the upper clamping body, and the transverse end part of the handle piece is clamped and positioned at the low-level step. The check valve baffle is conveniently positioned and clamped.
Preferably, the upper clamping body on the opposite side surface of the inner counter bore is provided with a lower shaft body which is integrally formed with the upper clamping body.
Preferably, the center of the circle of the upper clamping body and the center of the circle of the lower shaft body are used as the center, a cross-shaped crack opening is formed in the X, Y direction of the upper clamping body and the lower shaft body, and the length of the crack opening exceeds the height of the upper clamping body along the axial direction of the upper clamping body and the lower shaft body, but does not exceed the lower end of the lower shaft body. The function of the crack opening is that the upper clamping body can deform, so that the check valve baffle sleeve can be conveniently taken out and placed, the three-jaw chuck of the lathe clamps the clamp, the crack opening is naturally tightened, the check valve baffle sleeve is tightly clamped, and the check valve baffle inside can be subjected to turning processing with coaxiality maintained under high-speed operation, so that eccentricity and swing are avoided.
The beneficial effect that above design compares with prior art is:
the check valve baffle belongs to special-shaped parts, and is wholly thinner, the clamping of inconvenient turning of three-jaw chuck of lathe, the mosaic assembly of last clamping body and check valve baffle cover has been designed, can let the assembly of special-shaped check valve baffle in the anchor clamps of convenient three-jaw chuck centre gripping, reduce the clamping time of turning, anchor clamps simple structure, the assembly is quick, convenient centre gripping belongs to special frock clamp, the high accuracy turning of convenient check valve baffle upper surface assembly groove.
Drawings
Fig. 1 is a schematic top view of the check valve shutter.
FIG. 2 is a schematic diagram of a front view structure of the present utility model;
fig. 3 is a schematic top view of the present utility model.
Detailed Description
In order that the manner in which the utility model is attained, as well as the features and advantages thereof, will be readily understood, a more particular description of the utility model will be rendered by reference to specific embodiments thereof.
As shown in fig. 1-3, the check valve baffle 1 is composed of an integrally formed circular plate 10 and a handle piece 11, the machining fixture comprises an upper clamping body 2 and a lower shaft body 3, the upper clamping body 2 and the lower shaft body 3 are integrally formed, the diameter of the upper clamping body 2 is larger than that of the lower shaft body 3, and the upper clamping body 2 and the lower shaft body 3 are coaxial.
The middle axis of the upper clamping body 2 is provided with an inner counter bore, a detachable check valve baffle sleeve is embedded in the inner counter bore, the check valve baffle sleeve is a left half bud sleeve 20 and a right half bud sleeve 21 which are symmetrically designed and can be opened and closed, the left half bud sleeve 20 and the right half bud sleeve 21 are enclosed to form a hollow cylindrical shape, a circular plate of the check valve baffle 1 is embedded in the middle of the left half bud sleeve 20 and the right half bud sleeve 21 which can be enclosed together in a tight fit mode, a notch for clamping a handle piece is further arranged on the side wall of the left half bud sleeve 20 or the right half bud sleeve 21, and the upper plane of the check valve baffle sleeve is kept at the same height with the upper plane of the upper clamping body 2 after the check valve baffle sleeve is embedded in the upper clamping body 2.
Preferably, the left half bud sleeve 20 and the right half bud sleeve 21 are made of magnetic materials with mutual attraction, can be opened, can accurately wrap the check valve baffle when being surrounded, and cannot have surrounding deflection.
Preferably, the handle piece 11 is T-shaped, the vertical end of the handle piece is integrally connected with the circular plate 10, the upper clamping body 2 is provided with a low-level step 22 positioned in the peripheral direction of the notch, and the transverse end of the handle piece 11 is clamped at the low-level step 22. The check valve baffle plate 1 is conveniently positioned and clamped.
Preferably, the center of the circle of the upper clamping body and the center of the circle of the lower shaft body are used as the center, a cross-shaped crack opening is formed in the X, Y direction of the upper clamping body and the lower shaft body, and the length of the crack opening exceeds the height of the upper clamping body along the axial direction of the upper clamping body and the lower shaft body, but does not exceed the lower end of the lower shaft body.
The inner counter bore extends downwards from the upper plane of the upper clamping body 2 along the axis into the lower shaft body 3, and the diameter in the upper clamping body 2 is larger than the diameter in the lower shaft body 3. In addition, a cross-shaped slit 4 is formed in the direction X, Y of the upper clamping body 2 and the lower shaft body 3 with the center of the upper clamping body 2 and the center of the lower shaft body 3 as the center, and the length of the slit 4 exceeds the height of the upper clamping body 2 along the axial direction of the upper clamping body 2 and the lower shaft body 3, but does not exceed the lower end of the lower shaft body 3.
Because the whole part of the lower shaft body 3 is plugged into the three-jaw chuck for full clamping when the lower shaft body is clamped on a machine tool, the crack opening 4 is contracted along with the clamping of the three-jaw chuck. The check valve baffle sleeve is placed in the inner counter bore of the upper clamping body 2, when the whole fixture is not clamped, the crack opening 4 is in a normal state, and after the lower shaft body 3 is clamped by the three-jaw chuck of the machine tool, a clamping extrusion force is arranged on the crack opening 4, so that the upper clamping body and the lower shaft body integrally generate a shrinking micro deformation, and the check valve baffle sleeve in clearance fit is changed into an interference fit assembly mode. After the processing is finished, the three-jaw chuck is loosened, then the crack 4 is restored to be normal again, the assembly mode of the check valve baffle sleeve is changed into clearance fit again, and the check valve baffle sleeve can be taken out. The design of the split 4 is a deformable feature for the clamping of profiled parts common in mechanical designs, which is present on the machining tool.
The milling fixture for the check valve baffle plate provided by the utility model is described in detail above. The description of the specific embodiments is only intended to aid in understanding the method of the utility model and its core concept, and it should be understood that it will be apparent to those skilled in the art that various changes and modifications can be made herein without departing from the principles of the utility model, and such changes and modifications will fall within the scope of the appended claims.
Claims (5)
1. The milling fixture for the check valve baffle consists of an integrally formed circular plate and a handle piece, the machining fixture comprises an upper clamping body and a lower shaft body which are integrally formed, the diameter of the upper clamping body is larger than that of the lower shaft body, the upper clamping body and the lower shaft body keep coaxiality,
the method is characterized in that: the utility model discloses a check valve baffle cover, including the left side bud cover and right side bud cover, including the middle counter bore is equipped with in the axis position department of last centre gripping body, including the counter bore, the detachable check valve baffle cover has in the counter bore, the check valve baffle cover is symmetrical design and can open, closed left side bud cover and right side bud cover, left side bud cover and right side bud cover enclose and be a hollow cylindrical shape, the plectane of its check valve baffle is at the centre of the left side bud cover and right side bud cover that can enclose together with close fit mode, and still be equipped with the breach of joint handle piece on the lateral wall of left side bud cover or right side bud cover, the check valve baffle cover is gone up its upper plane and is kept the co-altitude with the upper plane of last centre gripping body after the clamp body is gone up in the embedding.
2. The milling fixture for a check valve baffle according to claim 1, wherein: the left half bud sleeve and the right half bud sleeve are made of magnetic materials with mutual attraction.
3. The milling fixture for a check valve baffle according to claim 2, wherein: the handle piece is T-shaped, the vertical end of the handle piece is connected with the circular plate in an integrated manner, a low-level step positioned in the peripheral direction of the notch is arranged on the upper clamping body, and the transverse end of the handle piece is clamped at the low-level step.
4. The milling fixture for a check valve baffle according to claim 1, wherein: the upper clamping body on the opposite side surface of the inner counter bore is provided with a lower shaft body which is integrally formed with the upper clamping body.
5. The milling fixture for a check valve baffle according to claim 4, wherein: the center of the upper clamping body and the center of the lower shaft body are used as the center, a cross-shaped crack opening is formed in the X, Y direction of the upper clamping body and the lower shaft body, and the length of the crack opening exceeds the height of the upper clamping body along the axial direction of the upper clamping body and the lower shaft body, but does not exceed the lower end of the lower shaft body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321721918.6U CN219901126U (en) | 2023-07-04 | 2023-07-04 | Milling clamp for check valve baffle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321721918.6U CN219901126U (en) | 2023-07-04 | 2023-07-04 | Milling clamp for check valve baffle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219901126U true CN219901126U (en) | 2023-10-27 |
Family
ID=88468160
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321721918.6U Active CN219901126U (en) | 2023-07-04 | 2023-07-04 | Milling clamp for check valve baffle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219901126U (en) |
-
2023
- 2023-07-04 CN CN202321721918.6U patent/CN219901126U/en active Active
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|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |