CN211614446U - Milling device for sealing surface of inner cavity of plug valve body - Google Patents
Milling device for sealing surface of inner cavity of plug valve body Download PDFInfo
- Publication number
- CN211614446U CN211614446U CN201922430833.2U CN201922430833U CN211614446U CN 211614446 U CN211614446 U CN 211614446U CN 201922430833 U CN201922430833 U CN 201922430833U CN 211614446 U CN211614446 U CN 211614446U
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- China
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- cutter
- valve body
- guide sleeve
- pin bushing
- guide pin
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Abstract
The utility model provides a sealed face milling unit of plug valve body inner chamber, it includes cock valve body (15), milling unit includes tool arm (1), knife rest (2), a set of milling cutter (3) and tool arm guide pin bushing (4), tool arm guide pin bushing (4) are formed by two upper and lower semi-circular guide pin bushing concatenations, be equipped with guide pin bushing flange (7) on the semi-circular guide pin bushing, it has a set of screw rod mounting hole that corresponds with cock valve body (15) tip flange to open on guide pin bushing flange (7), tool arm guide pin bushing (4) cover is on tool arm (1), and install at cock valve body (15) tip through guide pin bushing flange (7). The utility model has the advantages that: simple structure mills in-process arm guide pin bushing and fixes a position the arm, prevents that the arm stroke is too big and lead to off-centre, and blade holder and knife rest casting as an organic whole improve and mill sword installation accuracy.
Description
Technical Field
The utility model relates to a valve processing technology field, concretely relates to sealed face milling unit of plug valve body inner chamber.
Background
At present, the inner cavity sealing surface of a 42& 48-inch large plug valve is positioned at the inner side of a liquid inlet and a liquid outlet and is two symmetrical arc surfaces, and how to ensure the processing precision of the sealing surface is directly related to the quality of the valve due to large volume.
SUMMERY OF THE UTILITY MODEL
The utility model discloses an aim at the needle present, the sealed face of inner chamber of 42&48 cun large-scale plug valves is located inlet and liquid outlet inboardly, and for the arcwall face of two symmetries, because the volume is big, how to guarantee the machining precision direct relation of sealed face to the quality of valve, and provide a sealed face milling unit of plug valve body inner chamber.
The utility model discloses a cock valve body, milling unit includes the tool arm, the knife rest, a set of milling sword and tool arm guide pin bushing, tool arm one end is equipped with knife rest flange, the knife rest is through a set of screw rod rigid coupling on knife rest flange, annular array has a set of blade holder on the knife rest, the milling sword is through a set of screw rod rigid coupling on the blade holder, the tool arm guide pin bushing is formed by two upper and lower semi-circular guide pin bushing concatenations, be equipped with guide pin bushing flange on the semi-circular guide pin bushing, it has a set of screw rod mounting hole that corresponds with cock valve body end flange to open on the guide pin bushing flange, the tool arm guide pin bushing cover is on the tool arm.
The cutter frame connecting flange is provided with a circle of cutter frame positioning grooves, the cutter frame is provided with a circle of bosses matched with the cutter frame positioning grooves for use, and the cutter frame is positioned with the cutter frame connecting flange through the matching of the bosses and the cutter frame positioning grooves.
A cutter bar of the milling cutter is provided with a group of positioning tooth grooves, a cutter holder is provided with a locking boss matched with the positioning tooth grooves for use, the milling cutter is matched and positioned with the locking boss through the positioning tooth grooves, and a screw mounting hole of a guide sleeve connecting flange is a long hole.
The inner sides of the two semicircular guide sleeves are respectively provided with oil guide grooves which are mutually communicated, the upper semicircular guide sleeve is provided with an oil guide hole which is communicated with the oil guide grooves, and a guide sleeve connecting flange of the upper semicircular guide sleeve is provided with a lubricating oil tank which is communicated with the oil guide hole.
A group of milling cutter and a group of blade holder are four, and blade holder and knife rest are cast as an organic whole.
The utility model has the advantages that: simple structure mills in-process arm guide pin bushing and fixes a position the arm, prevents that the arm stroke is too big and lead to off-centre, and blade holder and knife rest casting as an organic whole improve and mill sword installation accuracy.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is an exploded view of the present invention.
Fig. 3 is a partially enlarged schematic view of fig. 2.
Fig. 4 is a schematic diagram of the milling state structure of the present invention.
Detailed Description
As shown in the attached drawing, the utility model discloses a cock valve body 15, milling device includes arm 1, knife rest 2, a set of milling cutter 3 and arm guide pin bushing 4, 1 one end of arm is equipped with knife rest flange 5, knife rest 2 is on knife rest flange 5 through a set of screw rod rigid coupling, annular array has a set of blade holder 6 on the knife rest 2, milling cutter 3 is on blade holder 6 through a set of screw rod rigid coupling, arm guide pin bushing 4 is formed by two upper and lower semi-circular guide pin bushing concatenations, be equipped with guide pin bushing flange 7 on the semi-circular guide pin bushing, it has a set of screw rod mounting hole that corresponds with 15 end flange of cock valve body to open on the guide pin bushing flange 7, arm guide pin bushing 4 cover is on arm 1, and install at 15 tip of cock valve body through guide.
The cutter frame connecting flange 5 is provided with a circle of cutter frame positioning grooves, the cutter frame 2 is provided with a circle of bosses matched with the cutter frame positioning grooves for use, and the cutter frame 2 is positioned with the cutter frame connecting flange 5 through the matching of the bosses and the cutter frame positioning grooves, so that the installation precision between the cutter frame 2 and the cutter arm 1 is improved.
A group of positioning tooth grooves 8 are formed in a cutter bar of the milling cutter 3, a locking boss 9 matched with the positioning tooth grooves 8 for use is arranged on the cutter holder 6, the milling cutter 3 is matched and positioned with the locking boss 9 through the positioning tooth grooves 8, the working radius of the milling cutter 3 can be rapidly adjusted according to the sizes of different valve bodies, and a screw rod mounting hole of the guide sleeve connecting flange 7 is a long hole and can be mounted on end flanges of the valve bodies of different sizes.
The inner sides of the two semicircular guide sleeves are respectively provided with an oil guide groove 10 which is mutually communicated, the upper semicircular guide sleeve is provided with an oil guide hole which is communicated with the oil guide groove 10, and a guide sleeve connecting flange 7 of the upper semicircular guide sleeve is provided with a lubricating oil tank 12 which is communicated with the oil guide hole and is used for lubricating the contact surface of the cutter arm guide sleeve 4 and the cutter arm 1.
A set of milling sword 3 and a set of blade holder 6 are four, and blade holder 6 and knife rest 2 casting parts as an organic whole improve milling sword 3 installation accuracy.
The working mode and principle are as follows: one end of a cutter arm 1 is fixedly connected to a cutter driving shaft of a lathe, a cock valve body 15 is fixed on a workbench of the lathe, valve core mounting holes of the cutter arm 1 and the cock valve body 15 are kept on the same axis, a tool rest 2 extends into the cock valve body 15 from the end part of the cock valve body 15, a lower two semicircular guide sleeves are sleeved on the cutter arm 1, a guide sleeve connecting flange 7 is fixedly connected to a flange plate at the end part of the cock valve body 15 through a screw, the cutter arm 1 can move back and forth in the cutter arm guide sleeve 4, the cutter arm 1 moves back and forth in a larger stroke to mill a sealing surface, and the cutter arm guide sleeve 4 can prevent the cutter arm 1 from being eccentric due to the overlarge stroke, so that the machining.
Claims (5)
1. A milling device for a sealing surface of an inner cavity of a plug valve body comprises a plug valve body (15), the milling device is characterized by comprising a cutter arm (1), a cutter frame (2), a group of milling cutters (3) and a cutter arm guide sleeve (4), wherein one end of the cutter arm (1) is provided with a cutter frame connecting flange (5), the cutter frame (2) is fixedly connected on the cutter frame connecting flange (5) through a group of screws, a group of cutter seats (6) are annularly arrayed on the cutter frame (2), the milling cutters (3) are fixedly connected on the cutter seats (6) through a group of screws, the cutter arm guide sleeve (4) is formed by splicing an upper semicircular guide sleeve and a lower semicircular guide sleeve, the semicircular guide sleeve is provided with a guide sleeve connecting flange (7), the guide sleeve connecting flange (7) is provided with a group of screw rod mounting holes corresponding to a flange at the end part of a cock valve body (15), and the cutter arm guide sleeve (4), and is arranged at the end part of the cock valve body (15) through a guide sleeve connecting flange (7).
2. The milling device for the sealing surface of the inner cavity of the plug valve body according to claim 1 is characterized in that a circle of tool rest positioning grooves are formed in the tool rest connecting flange (5), a circle of bosses matched with the tool rest positioning grooves are arranged on the tool rest (2), and the tool rest (2) is positioned with the tool rest connecting flange (5) through the matching of the bosses and the tool rest positioning grooves.
3. The plug valve body inner cavity sealing surface milling device is characterized in that a group of positioning tooth grooves (8) are formed in a cutter rod of the milling cutter (3), a locking boss (9) matched with the positioning tooth grooves (8) in use is arranged on the cutter holder (6), the milling cutter (3) is matched and positioned with the locking boss (9) through the positioning tooth grooves (8), and a screw rod mounting hole of the guide sleeve connecting flange (7) is a long hole.
4. The milling device for the sealing surface of the inner cavity of the plug valve body according to claim 1 is characterized in that oil guide grooves (10) which are communicated with each other are respectively formed in the inner sides of the two semicircular guide sleeves, oil guide holes which are communicated with the oil guide grooves (10) are formed in the semicircular guide sleeve positioned above, and a lubricating oil tank (12) which is communicated with the oil guide holes is formed in a guide sleeve connecting flange (7) of the semicircular guide sleeve positioned above.
5. The plug valve body inner cavity sealing surface milling device is characterized in that the number of the milling cutters (3) and the number of the cutter holders (6) are four, and the cutter holders (6) and the cutter frame (2) are integrally cast.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922430833.2U CN211614446U (en) | 2019-12-30 | 2019-12-30 | Milling device for sealing surface of inner cavity of plug valve body |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922430833.2U CN211614446U (en) | 2019-12-30 | 2019-12-30 | Milling device for sealing surface of inner cavity of plug valve body |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211614446U true CN211614446U (en) | 2020-10-02 |
Family
ID=72633621
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922430833.2U Active CN211614446U (en) | 2019-12-30 | 2019-12-30 | Milling device for sealing surface of inner cavity of plug valve body |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211614446U (en) |
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2019
- 2019-12-30 CN CN201922430833.2U patent/CN211614446U/en active Active
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