CN215700037U - Special fixture for butterfly valve - Google Patents
Special fixture for butterfly valve Download PDFInfo
- Publication number
- CN215700037U CN215700037U CN202121643502.8U CN202121643502U CN215700037U CN 215700037 U CN215700037 U CN 215700037U CN 202121643502 U CN202121643502 U CN 202121643502U CN 215700037 U CN215700037 U CN 215700037U
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- CN
- China
- Prior art keywords
- face
- boss
- fixed disc
- workstation
- workbench
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- Expired - Fee Related
Links
- 238000003825 pressing Methods 0.000 claims abstract description 19
- 238000000034 method Methods 0.000 claims abstract description 14
- 230000000149 penetrating effect Effects 0.000 claims description 4
- 230000003014 reinforcing effect Effects 0.000 claims description 3
- 238000003754 machining Methods 0.000 abstract description 6
- 238000010586 diagram Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004323 axial length Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
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Abstract
The utility model relates to the technical field of tool fixtures, can stably clamp a butterfly valve in the processes of machining a main valve rod hole and an auxiliary valve rod hole and turning an end face of an upper flange, ensures the machining precision, and has the technical characteristics of simple structure and convenience in use. In particular to a special clamp for a butterfly valve, which comprises a fixed disc, a workbench and a pressing component; the fixed disc is fixed on a main shaft flange of the lathe; the left end of the workbench is fixed on the right end face of the fixed disc and is vertical to the right end face of the fixed disc, and the end face of the right end of the workbench is parallel to the right end face of the fixed disc and is used for positioning the bottom face of the upper flange of the valve body to be processed; the top surface of workstation is provided with circular shape boss, and the external diameter of boss and the valve pocket internal diameter of waiting to process the valve body or the counter bore internal diameter phase-match of valve pocket tip, wait to process the valve body by the terminal surface location back of boss and workstation right-hand member, compress tightly the subassembly and be connected with the workstation and will wait to process the valve body and compress tightly on the workstation.
Description
Technical Field
The utility model relates to the technical field of tool fixtures, in particular to a special fixture for a butterfly valve.
Background
The butterfly valve is also called a flap valve, is a regulating valve with simple structure, and can be used for the switch control of low-pressure pipeline media. The butterfly valve mainly comprises a valve body B1, a valve rod, a butterfly plate and a sealing ring, wherein the valve body is cylindrical and short in axial length, the butterfly plate is arranged in the valve body, a main valve rod hole B4.1 and an auxiliary valve rod hole B4.2 opposite to the main valve rod hole are radially formed in the valve body, an upper flange B5 is formed at the outer end of the main valve rod hole B4.1, the upper flange B5 is used for connecting a gear box, the butterfly plate is fixed after the valve rod penetrates into a valve cavity B2 from the main valve rod hole B4.1, and the end of the valve rod is inserted into the auxiliary valve rod hole B4.2.
In production, the main valve stem hole B4.1 and the sub valve stem hole B4.2 are usually machined by using a drill, the end face of the upper flange B5 needs to be machined, and a special fixture needs to be designed for the valve body due to the large and irregular size of the valve body.
Disclosure of Invention
The utility model aims to overcome the defects in the prior art, and provides a special fixture for a butterfly valve, which can stably clamp the butterfly valve in the processes of machining a main valve rod hole and an auxiliary valve rod hole and turning the end face of an upper flange, ensures the machining precision, and has the technical characteristics of simple structure and convenience in use.
The technical purpose of the utility model is realized as follows:
a special fixture for a butterfly valve comprises a fixed disc, a workbench and a pressing assembly; the fixed disc is fixed on a main shaft flange of the lathe; the left end of the workbench is fixed on the right end face of the fixed disc and is vertical to the right end face of the fixed disc, and the end face of the right end of the workbench is parallel to the right end face of the fixed disc and is used for positioning the bottom face of the upper flange of the valve body to be processed; the top surface of workstation is provided with circular shape boss, and the external diameter of boss and the valve pocket internal diameter of waiting to process the valve body or the counter bore internal diameter phase-match of valve pocket tip, wait to process the valve body by the terminal surface location back of boss and workstation right-hand member, compress tightly the subassembly and be connected with the workstation and will wait to process the valve body and compress tightly on the workstation.
According to a further scheme, the pressing assembly comprises a pressing plate, at least two screw rods and nuts matched with the screw rods, at least two through holes penetrating through the workbench downwards are formed in the boss, the pressing plate is located above the boss and provided with connecting holes corresponding to the through holes, and the pressing plate is pressed downwards through the nuts after the screw rods penetrate through the through holes and the connecting holes corresponding to the through holes.
According to a further scheme, at least one positioning block is vertically fixed on the top surface of the boss, a positioning hole is formed in the positioning block, a guide sleeve is installed in the positioning hole, and the axis of the guide sleeve and the axis of the positioning hole are both arranged along the radial direction of the boss and are perpendicular to the end face of the right end of the workbench.
In a further scheme, a reinforcing rib plate is connected between the bottom surface of the workbench and the fixed disc.
The utility model has the beneficial effects that: the valve body to be machined is positioned by the boss and the end face, and is tightly pressed by the pressing plate, so that the valve body to be machined can be stably clamped in the machining process, and the machining precision is ensured. In addition, to the butterfly valve that the diameter is great (for example DN250 butterfly valve), the uide bushing can keep the stability of drill bit when processing vice valve rod hole, avoids punching the skew of appearing, has simple structure convenient to use's technical characterstic.
Drawings
Fig. 1 is a front view structural schematic diagram of a butterfly valve body.
Fig. 2 is a schematic sectional view taken along line a-a of fig. 1.
Fig. 3 is a schematic front view of the present invention.
Fig. 4 is a schematic top view of the structure of fig. 3 (omitting the hold-down assembly).
Fig. 5 is a schematic diagram of the right-side structure of fig. 3 (omitting the pressing assembly).
Fig. 6 is a schematic top view of the working state of the present invention.
Detailed Description
The present invention will be further described with reference to the accompanying drawings and examples, but the present invention is not limited to the following examples, so that the objects, solutions and advantages of the present invention can be more clearly understood by those skilled in the art.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified and limited, specific meanings of the general terms in the present invention may be specifically understood by those skilled in the art.
As shown in fig. 3 to 6, the clamp special for the butterfly valve provided by the utility model comprises a fixed plate 1, a workbench 5 and a pressing assembly. The fixed disc 1 is vertically fixed on a main shaft flange of a lathe, a stepped hole 10 matched with a lathe main shaft and the main shaft flange is formed in the left end face of the fixed disc 1, and the axis of the fixed disc 1 is collinear with the axis of the lathe main shaft. The left end of the workbench 5 is fixed on the right end face of the fixed disc 1 and is vertical to the right end face of the fixed disc 1, and a reinforcing rib plate 6 is connected between the bottom face of the workbench 5 and the fixed disc 1.
The end face 5A at the right end of the workbench 5 is parallel to the right end face of the fixed disc 1 and is used for positioning the bottom face of an upper flange B5 of the valve body to be processed. The top surface of workstation 5 is provided with circular shape boss 4, and the external diameter of boss 4 matches with the valve pocket internal diameter of waiting to process the valve body or the counter bore B3 of valve pocket tip, waits to process the valve body and is fixed a position the back by the terminal surface 5A of boss 4 and workstation 5 right-hand member, compresses tightly the subassembly and is connected with workstation 5 and will wait to process the valve body and compress tightly on workstation 5.
The pressing assembly comprises a pressing plate 8, at least two screw rods 7 and nuts 9 matched with the screw rods 7, at least two through holes 11 penetrating through the workbench 5 downwards are formed in the boss 4, the pressing plate 8 is located above the boss 4 and is provided with connecting holes corresponding to the through holes 11, the screw rods 7 penetrate through the through holes 11 and the connecting holes corresponding to the through holes and are pressed downwards through the nuts 9 after penetrating through the through holes 11, and the pressing plate 8 is used for processing a valve body.
At least one positioning block 2 is vertically fixed on the top surface of the boss 4, a positioning hole 2.1 is formed in the positioning block 2, a guide sleeve 3 is installed in the positioning hole 2.1, and the axis of the guide sleeve 3 and the axis of the positioning hole 2.1 are arranged along the radial direction of the boss 4 and are perpendicular to the end surface 5A at the right end of the workbench 5.
The working principle of the utility model is as follows: as shown in fig. 6, a worker places the valve body to be machined on a workbench, positions the valve body to be machined by using the boss 4 and the end face 5A, and presses the valve body to be machined on the workbench through the pressing plate 8. Then, the end face of the upper flange B5 can be machined, or the drill bit starts to machine the main valve stem hole B4.1 and the auxiliary valve stem hole B4.2 from the direction C in fig. 6, when the auxiliary valve stem hole B4.2 is machined, the drill bit can penetrate through the guide sleeve 3, and the guide sleeve 3 plays a role in supporting and guiding the drill bit, so that the drilling precision is guaranteed. When the lathe spindle rotates, the valve body to be processed is driven to rotate together, and the turning tool or the drill bit is not moved.
The above description is only a preferred embodiment of the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (4)
1. The utility model provides a butterfly valve special fixture which characterized in that: comprises a fixed disc (1), a workbench (5) and a pressing component; the fixed disc (1) is fixed on a main shaft flange of a lathe; the left end of the workbench (5) is fixed on the right end face of the fixed disc (1) and is vertical to the right end face of the fixed disc (1), and the end face (5A) of the right end of the workbench (5) is parallel to the right end face of the fixed disc (1) and is used for positioning the bottom face of an upper flange (B5) of the valve body to be processed; the top surface of workstation (5) is provided with circular shape boss (4), and the external diameter of boss (4) and the valve pocket internal diameter of waiting to process the valve body or the counter bore internal diameter phase-match of valve pocket tip, wait to process the valve body by boss (4) and workstation (5) right-hand member terminal surface (5A) location back, compress tightly the subassembly and be connected with workstation (5) and will wait to process the valve body and compress tightly on workstation (5).
2. The special clamp for the butterfly valve according to claim 1, wherein: the pressing assembly comprises a pressing plate (8), at least two screw rods (7) and a nut (9) matched with the screw rods (7), at least two through holes (11) penetrating through the workbench (5) downwards are formed in the boss (4), the pressing plate (8) is located above the boss (4) and is provided with connecting holes corresponding to the through holes (11), and the pressing plate (8) is pressed downwards through the nut (9) after the screw rods (7) penetrate through the through holes (11) and the connecting holes corresponding to the screw rods.
3. The special clamp for the butterfly valve according to claim 1 or 2, wherein: the top surface of boss (4) is vertically fixed with at least one locating piece (2), locating hole (2.1) have been seted up in locating piece (2), is installing uide bushing (3) in locating hole (2.1), and the axis of uide bushing (3), the axis of locating hole (2.1) are all along the radial arrangement of boss (4) and are perpendicular with terminal surface (5A) of workstation (5) right-hand member.
4. The special fixture for butterfly valves according to claim 1 or 2, wherein: and a reinforcing rib plate (6) is connected between the bottom surface of the workbench (5) and the fixed disc (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121643502.8U CN215700037U (en) | 2021-07-20 | 2021-07-20 | Special fixture for butterfly valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121643502.8U CN215700037U (en) | 2021-07-20 | 2021-07-20 | Special fixture for butterfly valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215700037U true CN215700037U (en) | 2022-02-01 |
Family
ID=79987716
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121643502.8U Expired - Fee Related CN215700037U (en) | 2021-07-20 | 2021-07-20 | Special fixture for butterfly valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215700037U (en) |
-
2021
- 2021-07-20 CN CN202121643502.8U patent/CN215700037U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: A special fixture for butterfly valve Effective date of registration: 20221106 Granted publication date: 20220201 Pledgee: Hangzhou High-tech Financing Guarantee Co.,Ltd. Pledgor: Hangzhou Yafei Machinery Manufacturing Co.,Ltd. Registration number: Y2022330002967 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20220201 |