CN213136346U - Eccentric adjustment type centering fixture for grinding of three-eccentric butterfly valve sealing ring or valve body - Google Patents
Eccentric adjustment type centering fixture for grinding of three-eccentric butterfly valve sealing ring or valve body Download PDFInfo
- Publication number
- CN213136346U CN213136346U CN202021528965.5U CN202021528965U CN213136346U CN 213136346 U CN213136346 U CN 213136346U CN 202021528965 U CN202021528965 U CN 202021528965U CN 213136346 U CN213136346 U CN 213136346U
- Authority
- CN
- China
- Prior art keywords
- sliding plate
- adjusting
- eccentric
- bolt
- end disc
- 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.)
- Active
Links
Images
Landscapes
- Grinding And Polishing Of Tertiary Curved Surfaces And Surfaces With Complex Shapes (AREA)
Abstract
The utility model relates to an eccentric adjustment type centering fixture for grinding a three-eccentric butterfly valve sealing ring or a valve body, which comprises an eccentric angle flange seat, a centering flange, a sliding plate, an eccentric adjustment structure and a workpiece mounting seat; the angle-deviating flange seat consists of a flat bottom disc, an upper end disc which is obliquely arranged and a connecting part; the centering flange is arranged at the central hole of the flat base and fixedly connected with a rotating main shaft of the machine tool; the sliding plate and the upper end disc form directional moving fit with the positioning groove through the positioning pin shaft and are fixedly connected through a screw; the eccentric adjusting structure comprises a centering pin shaft, an adjusting bolt, a bolt connecting block, an adjusting stop block and a vernier caliper; the centering pin shaft is vertically fixed in the center of the upper end disc; the bolt connecting block is connected with the upper end part of the centering pin shaft, the adjusting stop block is fixedly arranged at the upper end of the sliding plate, the bolt head of the adjusting bolt is clamped in the adjusting stop block, and the screw rod is connected with the bolt connecting block; the main ruler of the vernier caliper is fixedly arranged on the sliding plate, and the auxiliary ruler is fixedly arranged above the bolt connecting block; the workpiece mounting seat is fixedly arranged above the sliding plate. The clamp has good applicability.
Description
Technical Field
The utility model belongs to the technical field of the butterfly valve processing, a butterfly valve processing is with supplementary anchor clamps is related to, concretely relates to eccentric adjustment formula centering anchor clamps are used to three eccentric butterfly valve sealing washer or valve body abrasive machining.
Background
As a new high-performance valve, the three-eccentric butterfly valve is more and more widely applied in various industries, and has a series of advantages of good sealing performance, small opening resistance, wear compensation, closing self-locking and the like. However, the shape, size and surface quality of the sealing surface of the valve (including the sealing surface of the sealing ring and the corresponding inner hole sealing surface on the valve body) are key factors influencing the sealing performance, and high-quality processing of the sealing surface is also a difficult point of various manufacturers.
The sealing ring of the triple eccentric butterfly valve is shown in fig. 5, and an included angle a is formed between the axis of the conical surface D2 & ltb & gt and the axis of the cylindrical surface D1 & ltb & gt in the figure; cylindrical surface D1 × B is the mounting surface, conical surface D2 × B is the sealing surface, and conical surface D2 × B is radially offset by a distance H.
The processing technology and the positioning clamp of the existing sealing ring have no universality, and different types of sealing rings need to be designed with different centering clamps, so that the processing period is prolonged, and the processing cost and the management difficulty are increased.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to overcome prior art's weak point, provide a product processing that satisfies multiple model, improve eccentric adjustment formula centering fixture for three eccentric butterfly valve sealing washer or valve body abrasive machining of anchor clamps suitability.
The above object of the present invention is achieved by the following technical solutions:
the utility model provides a three eccentric butterfly valve sealing washer or valve body abrasive machining are with eccentric adjustment formula centering fixture which characterized in that: the eccentric adjusting mechanism comprises an eccentric flange seat, a centering flange, a sliding plate, an eccentric adjusting structure and a workpiece mounting seat;
the inclined angle flange seat consists of a flat bottom disc, an upper end disc which is obliquely arranged and a connecting part arranged between the flat bottom disc and the upper end disc; the included angle between the upper end disc and the flat bottom disc is consistent with the included angle a between the axial line of the sealing surface of the workpiece and the axial direction of the mounting surface; a center hole is formed in the flat base, and the centering flange is installed at the center hole and is fixedly connected with a rotary main shaft of a machine tool;
the sliding plate is arranged above the upper end disc, a guide groove is formed in the upper end of the upper end disc along the inclination direction of the upper end disc, two positioning pin shafts are mounted below the sliding plate and are embedded into the guide groove, so that the sliding plate and the angle-deviating flange seat form directional moving fit, a plurality of connecting long holes are formed in the sliding plate along a square parallel to the guide groove, a threaded hole is formed in the upper end disc corresponding to each connecting long hole, and the sliding plate is detachably fixed above the angle-deviating flange seat through screws mounted in the connecting long holes and the corresponding threaded holes;
the eccentric adjusting structure comprises a centering pin shaft, an adjusting bolt, a bolt connecting block, an adjusting stop block and a vernier caliper; the centering pin shaft is perpendicular to the upper end disc and fixed in the center of the upper end disc; the bolt connecting block is connected with the upper end part of the centering pin shaft, the bolt connecting block extends into a abdicating hole formed in the sliding plate, and a threaded hole is formed in one side of the bolt connecting block; the adjusting stop block is fixedly arranged at the upper end of the sliding plate; the adjusting bolt is arranged in the direction parallel to the guide groove, the bolt head of the adjusting bolt is clamped into the adjusting stop block, the screw rod of the adjusting bolt is in threaded connection with the threaded hole of the bolt connecting block, and the adjusting clamping part is welded on the adjusting screw rod; the main ruler of the vernier caliper is fixedly arranged on the sliding plate along the inclination direction of the upper end disc, and the auxiliary ruler of the vernier caliper is fixedly arranged above the bolt connecting block along the inclination direction of the upper end disc;
the workpiece mounting seat is fixedly mounted above the sliding plate with the same axis.
Further: the guide groove adopts a conical guide groove, and the two positioning pin shafts adopt positioning conical pins.
The utility model has the advantages and positive effect:
1. the centering fixture adopts the eccentric flange seat, so that the sliding plate, the workpiece mounting seat on the sliding plate and the axis of the workpiece to be machined deflect by a set angle, and the purpose of adjusting the deflection of the axis of the workpiece to be machined is realized.
2. By adopting the centering fixture, the adjusting stop block drives the sliding plate, the workpiece mounting seat thereon and the workpiece to be machined to move directionally by rotating the adjusting bolt, so that the purpose of adjusting the deviation of the axis of the workpiece to be machined is realized.
In conclusion, the centering and positioning of the workpiece to be machined are realized by adjusting the deflection angle and the deflection distance of the axis of the workpiece to be machined. The centering fixture is suitable for machining sealing rings or valve bodies of various models with the same deflection angle and different deflection distances, and improves the applicability of the fixture.
Drawings
FIG. 1 is a view of the whole half-section three-dimensional structure for processing the sealing ring of the present invention;
FIG. 2 is a cross-sectional view of the workpiece mount of FIG. 1;
FIG. 3 is a schematic view of the whole half-section plane for valve body processing of the present invention;
FIG. 4 is a cross-sectional view of the workpiece mount of FIG. 3;
fig. 5 is a schematic structural diagram of a seal ring of a triple offset butterfly valve.
Fig. 6 is a schematic structural view of a valve body of a triple offset butterfly valve.
Detailed Description
The present invention will be described in further detail with reference to the following specific embodiments, which are illustrative only and not limiting, and the scope of the present invention should not be limited thereby.
An eccentric adjustment type centering fixture for grinding a three-eccentric butterfly valve sealing ring or a valve body is shown in fig. 1-4 and comprises an eccentric angle flange seat 1, a centering flange 2, a sliding plate 3, an eccentric adjustment structure and a workpiece mounting seat 9.
The inclined angle flange seat consists of a flat bottom disc, an upper end disc which is obliquely arranged and a connecting part arranged between the flat bottom disc and the upper end disc; the included angle between the upper end disc and the flat bottom disc is consistent with the included angle a between the axial line of the sealing surface of the workpiece and the axial direction of the mounting surface; the flat base is provided with a central hole, and the centering flange is arranged at the central hole and is fixedly connected with a rotary main shaft of the machine tool.
The sliding plate is arranged above the upper end disc, a guide groove is formed in the upper end of the upper end disc along the inclination direction of the upper end disc, two positioning pin shafts 8 are arranged below the sliding plate and embedded into the guide groove, and therefore the sliding plate and the inclined flange seat form directional moving fit. The guide groove preferably adopts a conical guide groove, and the two positioning pin shafts preferably adopt positioning conical pins. The matching structure of the conical guide groove and the positioning conical pin is adopted, and the accurate positioning and guiding effects are achieved. Wherein the location taper pin can adopt split type structure, comprises upper and lower two parts, and the upper portion adopts the cylinder structure, through screw fixed mounting in setting up the mounting hole on the slide, and lower part adopts the conical head structure, and lower part inserts in the toper guide way to cylinder fixed connection through screw and upper portion. The positioning taper pin adopts a two-body combined structure and has the advantages that: 1. the positioning pin can be placed to be loosened in the sliding process. 2. Having a larger taper pin angle than a standard taper pin facilitates installation of heavier workpieces and reduces the difficulty of non-vertical or horizontal installation. 3. The lower part taper surface can be independently trimmed when the contact of the lower part taper surface in the guide groove is in problem. A plurality of connecting long holes are formed in the sliding plate along the square parallel to the guide groove, threaded holes are formed in the upper end disc corresponding to each connecting long hole, and the sliding plate is detachably fixed above the inclined-angle flange seat through screws installed in the connecting long holes and the corresponding threaded holes.
The eccentric adjusting structure comprises a centering pin shaft 4, an adjusting bolt 6, a bolt connecting block 5, an adjusting stop dog 7 and a vernier caliper; the centering pin shaft is perpendicular to the upper end disc and fixed in the center of the upper end disc; the bolt connecting block is connected with the upper end part of the centering pin shaft, the bolt connecting block extends into a abdicating hole formed in the sliding plate, and a threaded hole is formed in one side of the bolt connecting block; the adjusting stop block is fixedly arranged at the upper end of the sliding plate; the adjusting bolt is arranged in the direction parallel to the guide groove, the bolt head of the adjusting bolt is clamped into the adjusting stop block, the screw rod of the adjusting bolt is in threaded connection with the threaded hole of the bolt connecting block, and the adjusting clamping part is welded on the adjusting screw rod; the main ruler 12 of the vernier caliper is fixedly installed on the sliding plate along the inclination direction of the upper end disc, and the auxiliary ruler 13 of the vernier caliper is fixedly installed above the bolt connecting block along the inclination direction of the upper end disc. The vernier caliper consisting of the main ruler and the auxiliary ruler can accurately read the moving distance of the workpiece to be machined, and is convenient to adjust.
The workpiece mounting seat is fixedly mounted above the sliding plate with the same axis. Specifically, the workpiece mounting seat is made into a series which is consistent with the connecting size of the sliding plate and is different from the interface size of the workpiece, so that different workpieces can be clamped for processing after replacement. For a workpiece mounting seat for processing a sealing ring, a positioning spigot 9.1 which is consistent with the size of a mounting surface of the sealing ring is arranged at the upper end of the workpiece mounting seat, a sealing ring 11 to be processed is mounted at the positioning spigot, and a pressing disc 10 is mounted at the upper end of the workpiece mounting seat to fix and press a sealing ring workpiece on the workpiece mounting seat. And for the workpiece mount 15 for machining the valve body 14: the connecting position and the size of the lower end of the workpiece mounting seat and the sliding plate are consistent with the corresponding position of the workpiece mounting seat 9 for mounting the sealing ring, but the inner hole 15.1 at the upper end of the workpiece mounting seat is consistent with the outer diameter of the flange of the valve body, and the valve body is fixed on the workpiece mounting seat by utilizing the through hole per se.
Although the embodiments of the present invention and the accompanying drawings are disclosed for illustrative purposes, those skilled in the art will appreciate that: various substitutions, changes and modifications are possible without departing from the spirit and scope of the present invention and the appended claims, and therefore, the scope of the present invention is not limited to the disclosure of the embodiments and the accompanying drawings.
Claims (2)
1. Eccentric adjustment formula centering fixture is used in three eccentric butterfly valve sealing washer or valve body abrasive machining, its characterized in that: the eccentric adjusting mechanism comprises an eccentric flange seat, a centering flange, a sliding plate, an eccentric adjusting structure and a workpiece mounting seat;
the inclined angle flange seat consists of a flat bottom disc, an upper end disc which is obliquely arranged and a connecting part arranged between the flat bottom disc and the upper end disc; the included angle between the upper end disc and the flat bottom disc is consistent with the included angle a between the axial line of the sealing surface of the workpiece and the axial direction of the mounting surface; a center hole is formed in the flat base, and the centering flange is installed at the center hole and is fixedly connected with a rotary main shaft of a machine tool;
the sliding plate is arranged above the upper end disc, a guide groove is formed in the upper end of the upper end disc along the inclination direction of the upper end disc, two positioning pin shafts are mounted below the sliding plate and are embedded into the guide groove, so that the sliding plate and the angle-deviating flange seat form directional moving fit, a plurality of connecting long holes are formed in the sliding plate along a square parallel to the guide groove, a threaded hole is formed in the upper end disc corresponding to each connecting long hole, and the sliding plate is detachably fixed above the angle-deviating flange seat through screws mounted in the connecting long holes and the corresponding threaded holes;
the eccentric adjusting structure comprises a centering pin shaft, an adjusting bolt, a bolt connecting block, an adjusting stop block and a vernier caliper; the centering pin shaft is perpendicular to the upper end disc and fixed in the center of the upper end disc; the bolt connecting block is connected with the upper end part of the centering pin shaft, the bolt connecting block extends into a abdicating hole formed in the sliding plate, and a threaded hole is formed in one side of the bolt connecting block; the adjusting stop block is fixedly arranged at the upper end of the sliding plate; the adjusting bolt is arranged in the direction parallel to the guide groove, the bolt head of the adjusting bolt is clamped into the adjusting stop block, the screw rod of the adjusting bolt is in threaded connection with the threaded hole of the bolt connecting block, and the adjusting clamping part is welded on the adjusting screw rod; the main ruler of the vernier caliper is fixedly arranged on the sliding plate along the inclination direction of the upper end disc, and the auxiliary ruler of the vernier caliper is fixedly arranged above the bolt connecting block along the inclination direction of the upper end disc;
the workpiece mounting seat is fixedly mounted above the sliding plate with the same axis.
2. The eccentric adjustment type centering fixture for grinding of the sealing ring or the valve body of the triple offset butterfly valve according to claim 1, characterized in that: the guide groove adopts a conical guide groove, and the two positioning pin shafts adopt positioning conical pins.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021528965.5U CN213136346U (en) | 2020-07-29 | 2020-07-29 | Eccentric adjustment type centering fixture for grinding of three-eccentric butterfly valve sealing ring or valve body |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021528965.5U CN213136346U (en) | 2020-07-29 | 2020-07-29 | Eccentric adjustment type centering fixture for grinding of three-eccentric butterfly valve sealing ring or valve body |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213136346U true CN213136346U (en) | 2021-05-07 |
Family
ID=75734613
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021528965.5U Active CN213136346U (en) | 2020-07-29 | 2020-07-29 | Eccentric adjustment type centering fixture for grinding of three-eccentric butterfly valve sealing ring or valve body |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213136346U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114227448A (en) * | 2021-12-20 | 2022-03-25 | 东宝阀门有限公司 | Grinding processing technology for sealing surface of metal hard sealing butterfly valve sealing seat |
-
2020
- 2020-07-29 CN CN202021528965.5U patent/CN213136346U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114227448A (en) * | 2021-12-20 | 2022-03-25 | 东宝阀门有限公司 | Grinding processing technology for sealing surface of metal hard sealing butterfly valve sealing seat |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN209681722U (en) | A kind of thin walled cylinder body inner hole turning clamp | |
| CN2803613Y (en) | Offset regulatable clamp | |
| CN213136346U (en) | Eccentric adjustment type centering fixture for grinding of three-eccentric butterfly valve sealing ring or valve body | |
| CN110977537A (en) | Clamp for processing arc straight groove of rectangular plate | |
| CN211966044U (en) | Universal flange drill jig | |
| CN110421372B (en) | Round positioning clamp and using method thereof | |
| CN212705560U (en) | Vertical machining center milling fixture for machining special-shaped pieces | |
| CN102101195A (en) | Hydraulic milling fixture for multi-position precision machining of square housing | |
| CN202388260U (en) | Hole processing lathe fixture of position marker support | |
| CN218983317U (en) | CNC cylinder work piece compresses tightly and mills rotatory tray device of location | |
| CN113414553B (en) | Machining process of main pump impeller cover of shaft seal of nuclear power station | |
| CN101745829B (en) | Adjustable rotary electrical-discharge machining frock clamp | |
| CN215432566U (en) | Device for processing thin-wall shell parts | |
| CN215919167U (en) | Brake disc drilling frock clamp | |
| CN211708198U (en) | Self-centering numerical milling fixture for aviation fairing parts | |
| CN213135844U (en) | Clamp for step shaft structure and machine tool | |
| CN112743125A (en) | Universal flange drill jig | |
| CN209774061U (en) | Four-axis machining's quick location frock of irregular work piece | |
| CN201979153U (en) | Hydraulic milling clamp for multistation precision machining of square casing | |
| CN218017475U (en) | A self-aligning device for grinding surface coating of piston rod | |
| CN208083899U (en) | Between centers transfer case body milling face fixture | |
| CN201799879U (en) | Key groove centering clamp | |
| CN207606676U (en) | Valve grinder valve centering support mechanism | |
| CN220073924U (en) | Machining tool for automatically positioning three-eccentric butterfly valve | |
| CN217412491U (en) | Jack catch, chuck anchor clamps and lathe |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |