WO2023168988A1 - 旋塞阀阀座的加工夹具及加工方法 - Google Patents

旋塞阀阀座的加工夹具及加工方法 Download PDF

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Publication number
WO2023168988A1
WO2023168988A1 PCT/CN2022/133180 CN2022133180W WO2023168988A1 WO 2023168988 A1 WO2023168988 A1 WO 2023168988A1 CN 2022133180 W CN2022133180 W CN 2022133180W WO 2023168988 A1 WO2023168988 A1 WO 2023168988A1
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WO
WIPO (PCT)
Prior art keywords
valve seat
support plate
processing
mounting hole
plug valve
Prior art date
Application number
PCT/CN2022/133180
Other languages
English (en)
French (fr)
Inventor
张坚利
王麟
宋新稳
邹祥
刘学吉
亓凤杰
Original Assignee
烟台杰瑞石油装备技术有限公司
Priority date (The priority date 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 date listed.)
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Publication date
Application filed by 烟台杰瑞石油装备技术有限公司 filed Critical 烟台杰瑞石油装备技术有限公司
Publication of WO2023168988A1 publication Critical patent/WO2023168988A1/zh

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    • 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
    • B24B41/00—Component parts such as frames, beds, carriages, headstocks
    • B24B41/06—Work supports, e.g. adjustable steadies

Definitions

  • the present disclosure relates to the field of valve technology, and in particular to a processing fixture and processing method for a plug valve seat.
  • Plug valves are widely used in petroleum, chemical industry, pharmaceutical and other fields.
  • the plug valve is a plunger-shaped rotary valve that controls the rotation of its internal valve core to open or close the valve.
  • valve seat is a key component in the plug valve.
  • the tight fit between the valve seat and the valve core forms the mechanical seal of the plug valve.
  • Some embodiments of the present disclosure provide a processing jig for a plug valve seat.
  • the valve seat has a boss portion and a recessed portion, the boss portion is configured to cooperate with the valve body of the plug valve, and the recessed portion is configured to cooperate with the valve core of the plug valve.
  • the processing fixture includes a base, a first support plate, a second support plate, a first fixing component and a second fixing component.
  • the first support plate is provided on the base and includes a first mounting hole configured to fix the boss portion of the first valve seat to be processed.
  • the second support plate is arranged on the base relative to the first support plate and includes a second mounting hole configured to fix the boss portion of the second valve seat to be processed.
  • the first mounting hole is opposite to the second mounting hole, and a processing space is formed between the first supporting plate and the second supporting plate.
  • the first fixing component is located in the processing space and is configured to fix the first valve seat on the first support plate.
  • the second fixing component is located in the processing space and is configured to fix the second valve seat on the second support plate.
  • the first fixing component and the second fixing component are configured such that the recessed portion of the first valve seat and the recessed portion of the second valve seat located in the processing space are opposite to each other.
  • Some embodiments of the present disclosure also provide a method for processing a plug valve seat.
  • the processing method is applied to the processing fixture of the plug valve seat.
  • the processing method includes: preparing a blank for the valve seat; processing the blank so that the blank forms the boss portion and the recessed portion; and forming the boss portion and the recessed portion.
  • the two blanks are processed simultaneously so that the two blanks form two valve seats with the same processing accuracy.
  • Figure 1 is a cross-sectional structural view of a plug valve according to some embodiments.
  • Figure 2 is a structural diagram of a plug valve seat in the related art
  • Figure 3A is a structural diagram of a plug valve seat according to some embodiments.
  • Figure 3B is a partial structural view of the plug valve seat shown in Figure 3A;
  • Figure 4 is an overall structural view of a processing fixture for a plug valve seat according to some embodiments.
  • FIG. 5 is a top view of the processing fixture of the plug valve seat shown in Figure 4;
  • Figure 6 is a partial cross-sectional view of the processing fixture of the plug valve seat shown in Figure 4;
  • Figure 7 is a structural diagram of a base connected to a processing machine tool according to some embodiments.
  • Figure 8 is a structural diagram of another base connected to a processing machine tool according to some embodiments.
  • Figure 9 is a structural diagram of yet another base connected to a processing machine tool according to some embodiments.
  • Figure 10 is a flow chart of a method for processing a plug valve seat according to some embodiments.
  • 400-Plug valve 401-valve body; 4011-valve cavity; 4012-channel; 4013-valve stem cavity; 4014, 4015-both ends of the valve body; 402-valve core; 4021-valve core hole; 403-valve stem ;
  • 2-Processing fixture 201-base; 2011-first surface; 2012-second surface; 2013-first threaded hole; 2014-first jack hole; 2015-via hole; 2016-taper hole; 202-first support plate; 2021-first mounting hole; 20211-first engraved line; 2022-second threaded hole; 2023-second jack; 203-second support plate; 2031-second mounting hole; 20311-second engraved line ; 204-fixed component; 2041-pressing block; 2042-rotating screw; 2043-guide rod; 2044-screw head; 205-processing space; 206-first bump; 207-second bump; 208-fastener ;2081-threaded connector;2082-positioning pin;
  • first and second are used for descriptive purposes only and shall not be understood as indicating or implying relative importance or implicitly indicating the quantity of indicated technical features. Therefore, features defined as “first” and “second” may explicitly or implicitly include one or more of these features. In the description of the embodiments of the present disclosure, unless otherwise specified, "plurality" means two or more.
  • connection can be a fixed connection, a detachable connection, or a detachable connection.
  • connection can be direct connection, indirect connection through an intermediary, or internal connection between two components.
  • At least one of A, B and C has the same meaning as “at least one of A, B or C” and includes the following combinations of A, B and C: A only, B only, C only, A and B The combination of A and C, the combination of B and C, and the combination of A, B and C.
  • a and/or B includes the following three combinations: A only, B only, and a combination of A and B.
  • the term “if” is optionally interpreted to mean “when” or “when” depending on the context.
  • the phrase “if it is determined” is optionally interpreted to mean “when it is determined” depending on the context.
  • parallel includes absolutely parallel and approximately parallel, and the acceptable deviation range of approximately parallel may be, for example, a deviation within 5°;
  • perpendicular includes absolutely vertical and approximately vertical, and the acceptable deviation range of approximately vertical may also be, for example, Deviation within 5°.
  • equal includes absolute equality and approximate equality, wherein the difference between the two that may be equal within the acceptable deviation range of approximately equal is less than or equal to 5% of either one, for example.
  • Some embodiments of the present disclosure provide a plug valve 400.
  • FIG. 1 is a cross-sectional structural view of a plug valve according to some embodiments.
  • the plug valve 400 includes a valve body 401 , a valve core 402 , a valve seat 1 and a valve stem 403 .
  • the valve body 401 includes a valve cavity 4011, a passage 4012 and a valve stem cavity 4013 disposed inside it.
  • the channel 4012 passes through the two ends 4014 and 4015 of the valve body 401 and is connected with the valve cavity 4011.
  • the valve stem cavity 4013 is connected with the valve cavity 4011 and is perpendicular to the channel 4012.
  • the valve core 402 and the valve seat 1 are disposed together in the valve cavity 4011 of the plug valve 400.
  • the valve stem 403 penetrates the valve stem cavity 4013 and is connected with the valve core 402 for controlling the rotation of the valve core 402.
  • the valve core 402 has a cylindrical structure; the valve core 402 has a valve core hole 4021, which is provided on the side wall of the valve core 402 and runs through the entire valve core 402.
  • FIG 2 is a structural diagram of a plug valve seat in the related art.
  • the valve seat of the plug valve in the related art is an arc blade 01.
  • the arc plate 01 is generally a 1/3 or 1/2 cylinder sheet structure.
  • the arc plate 01 closely fits the outer arc surface on the side wall of the valve core 402 through its inner arc to realize the mechanical control of the plug valve 400. seal.
  • the arc plate 01 has an arc plate through hole 011. When the plug valve 400 is in the open state, the arc plate through hole 011 is connected and aligned with the channel 4012 in the valve body 401.
  • FIG. 3A is a structural diagram of a plug valve seat according to some embodiments
  • Figure 3B is a partial structural diagram of the plug valve seat shown in Figure 3A.
  • the valve seat 1 in order to facilitate the assembly of the valve seat 1 and the valve body 401 in the plug valve 400, as shown in FIGS. 3A and 3B , the valve seat 1 includes a boss portion 101 and a recessed portion 102 .
  • the boss portion 101 is in contact with the recessed portion 102 .
  • the boss portion 101 and the recessed portion 102 can be an integrated structure or a separate structure. This disclosure does not limit this.
  • the valve seat 1 also includes a through hole 103 , which is provided inside the valve seat 1 and penetrates the boss portion 101 and the recessed portion 102 .
  • the through hole 103 is arranged to communicate the inside of the boss portion 101 with the inside of the recessed portion 102 .
  • the boss portion 101 is a cylindrical structure. It should be noted that the present disclosure does not limit the shape of the boss portion 101, which can be cylindrical or polygonal.
  • the recessed portion 102 is an arc-shaped structure.
  • the recessed portion 102 includes an arc surface 1021 , which is a surface of one end of the recessed portion 102 away from the boss portion 101 .
  • the boss portion 101 is plug-fitted into the channel 4012 in the valve body 401 .
  • the through hole 103 of the valve seat 1 can be connected and aligned with the passage 4012 in the valve body 401, thereby facilitating the assembly of the valve seat 1 and the valve body 401.
  • the arc surface 1021 is in contact with the side wall of the valve core 402 to achieve a mechanical seal between the valve seat 1 and the valve core 402 .
  • the recessed portion 102 in order to facilitate the valve seat 1 to be clamped by its processing fixture during processing, also includes a contact surface 1022 , which is provided on the side of the arc surface 1021 away from the boss portion 101 .
  • the abutting surface 1022 is connected to the arc surface 1021 to form a stepped surface.
  • the contact surface 1022 is configured to contact the processing fixture of the valve seat 1 to avoid damage when the arc surface 1021 is clamped.
  • the recess 102 includes multiple abutment surfaces 1022, such as two or four abutment surfaces 1022.
  • the plurality of contact surfaces 1022 are evenly arranged on the side of the arcuate surface 1021 away from the boss portion 101 . But it is not limited to this.
  • each plug valve 400 includes two valve seats 1 with the same curvature (for example, the two valve seats 1 are symmetrically arranged along the left-right direction of Figure 1 ).
  • the two valve seats 1 of the same plug valve 400 are processed separately.
  • some embodiments of the present disclosure also provide a processing fixture for plug valve seats. After using the processing fixture, the two valve seats 1 used in the same plug valve 400 can be processed at the same time, thereby facilitating the use of the valve seat.
  • the two valve seats 1 have the same processing accuracy.
  • Figure 4 is an overall structural view of a processing fixture for a plug valve seat according to some embodiments.
  • Figure 5 is a top view of a processing fixture for the plug valve seat shown in Figure 4.
  • Figure 6 is a view of the plug valve shown in Figure 4. Partial cutaway view of the valve seat machining jig.
  • the processing fixture 2 includes a base 201, a first support plate 202, a second support plate 203 and at least two fixing components 204.
  • the base 201 has a first surface 2011 and a second surface 2012 arranged oppositely.
  • the projected shape of the base 201 in a direction perpendicular to the first surface 2011 or the second surface 2012, is a polygon or a circle.
  • the projected shape of the base 201 in the direction perpendicular to the first surface 2011 , is a hexagon.
  • the base 201 is made of cast iron (eg, ductile iron) or stainless steel. But it is not limited to this.
  • the first support plate 202 and the second support plate 203 are arranged oppositely on the first surface 2011 of the base 201, and have substantially the same structure. In some embodiments, the first support plate 202 and the second support plate 203 are symmetrically arranged on the first surface 2011 and are both perpendicular to the first surface 2011 .
  • the first support plate 202 includes a first mounting hole 2021, which is configured to fix the boss portion 101 of a valve seat 1 to be processed (ie, the first valve seat 1).
  • the second support plate 203 includes a second mounting hole 2031 configured to fix the boss portion 101 of another valve seat 1 to be processed (ie, the second valve seat 1 ).
  • the structures of the two valve seats 1 to be processed are the same. In some embodiments of the present disclosure, the two valve seats 1 to be processed are called the first valve seat 1 and the second valve seat 1 respectively, just for convenience of description. .
  • the central axis L1 of the first mounting hole 2021 coincides with the central axis L2 of the second mounting hole 2031 (the central axes L1 and L2 are shown as dotted lines in Figure 5), that is, the first mounting hole 2021 and the second mounting hole 2031 are arranged oppositely. .
  • the position of the boss portion 101 of the first valve seat 1 installed on the first support plate 202 can be opposite to the position of the boss portion 101 of the second valve seat 1 installed on the second support plate 203, thereby making the second
  • the recessed portion 102 of one valve seat 1 is opposite to the recessed portion 102 of the second valve seat 1 .
  • the processing jig 2 has a processing space 205 .
  • the processing space 205 is located between the first support plate 202 and the second support plate 203 on the first surface 2011 of the base 201. That is, the processing space 205 is provided on the first surface 2011 of the base 201 and the first support plate 202 close to the second support plate 203. In the space formed by the surface of the second support plate 203 and the surface of the second support plate 203 close to the first support plate 202 .
  • the processing space 205 is configured to accommodate the recessed portions 102 of the two valve seats 1 to be processed (ie, the first valve seat 1 and the second valve seat 1 ).
  • At least two fixing components 204 are located in the processing space 205 and are respectively provided on the first support plate 202 and the second support plate 203. That is, any one of the first support plate 202 and the second support plate 203 is provided with At least one fixed component 204. At least two fixing assemblies 204 are configured to respectively fix the recessed portions 102 of the two valve seats 1 to be processed in the processing space 205 to achieve simultaneous processing of the two valve seats 1 .
  • the boss portion 101 of the first valve seat 1 is installed into the first mounting hole 2021 of the first support plate 202, and the second valve seat 1 After the boss portion 101 is installed into the second mounting hole 2031 of the second support plate 203, since at least one fixing component 204 is provided on any one of the first support 202 and the second support plate 203, and the fixation The assembly 204 is located in the processing space 205. Therefore, the boss portions 101 of the two valve seats 1 to be processed are respectively fixed on the first support plate 202 and the second support plate 203 through the corresponding fixing assemblies 204, so that the The recessed portions 102 of the two valve seats 1 to be processed in the processing space 205 are arranged oppositely.
  • the fixing component 204 on the support plate 202 is called a first fixing component 204
  • the fixing component 204 provided on the second support plate 203 is called a second fixing component 204.
  • the following description takes the first fixing component 204 disposed on the first support plate 202 as an example.
  • the first fixing component 204 includes a pressing block 2041 , a rotating screw 2042 and a guide rod 2043 .
  • the pressing block 2041 is provided in the processing space 205 and is configured to contact the contact surface 1022 of the recessed portion 102 .
  • the extension direction of the rotating screw rod 2042 and the extending direction of the guide rod 2043 are both parallel to the central axis L1 of the first mounting hole 2021 , that is, the guide rod 2043 and the rotating screw rod 2042 are arranged in parallel.
  • One end of the rotating screw rod 2042 is rotationally connected to the first support plate 202, and the other end passes through the pressure block 2041 and is threadedly connected to the pressure block 2041.
  • One end of the guide rod 2043 is fixedly connected to the first support plate 202, and the other end passes through the pressure block 2041 and is slidingly connected to the pressure block 2041.
  • one end of the guide rod 2043 is fixed to the first support plate 202 by welding or threaded connection.
  • the pressing block 2041, the rotating screw 2042 and the guide rod 2043 are all made of the same material.
  • the pressing block 2041, the rotating screw 2042 and the guide rod 2043 are made of stainless steel or carbon steel. But it is not limited to this.
  • one end of the rotating screw 2042 is rotationally connected to the first support plate 202 through a bearing. But it is not limited to this.
  • the first fixing assembly 204 further includes a screw head 2044 .
  • the screw head 2044 is located at an end of the rotating screw rod 2042 away from the pressing block 2041 and is disposed on a side of the first support plate 202 away from the second support plate 203 . It should be noted that this disclosure does not limit the type of the screw head 2044, which may be a hexagonal screw head or a round screw head.
  • the rotating screw 2042 is rotated clockwise; because The pressure block 2041 is slidingly connected to the guide rod 2043, so the pressure block 2041 can move toward the recessed portion 102 of the first valve seat 1 along the extension direction of the guide rod 2043 under the limiting effect of the guide rod 2043, and with the abutment surface. 1022 docking.
  • the first valve seat 1 can be pressed against the first support plate 202 under the abutting action of the pressure block 2041.
  • the first valve seat 1 is pressed against the first support plate 202 through the pressure block 2041, which can effectively prevent the first valve seat 1 from shaking during the processing, thereby ensuring the processing accuracy of the first valve seat 1.
  • the rotating screw 2042 is rotated counterclockwise, so that the pressure block 2041 moves away from the first valve seat 1 along the extension direction of the guide rod 2043, and the pressure block 2041 is in contact with the first valve seat. 1 is out of contact, and the processed first valve seat 1 is taken out.
  • the cross section of the pressing block 2041 along the direction of the central axis L1 of the first mounting hole 2021 is generally trapezoidal, for example, generally a right-angled trapezoid.
  • the pressure block 2041 has an inclined surface 20411, such as an inclined plane or an inclined curved surface; after the first valve seat 1 is clamped between the pressure block 2041 and the first support plate 202, the inclined surface 20411 and the arc surface 1021 of the first valve seat 1 Adjacent.
  • the inclined plane of the pressure block 2041 is parallel to the tangent line at the edge of the arcuate surface 1021 away from the boss portion 101; in other embodiments, the curvature of the inclined surface of the pressure block 2041 is parallel to the arc surface. 1021 has the same curvature. In this way, the grinding wheel can effectively prevent the pressure block 2041 from contacting the grinding wheel when grinding the arc surface 1021 of the first valve seat 1 .
  • the two valve seats 1 to be processed are processed simultaneously on the processing fixture 2 .
  • the processing process of the second valve seat 1 on the second support plate 203 is substantially the same as the processing process of the first valve seat 1 on the first support plate 202, and will not be described again here.
  • multiple fixing assemblies 204 can be provided on either of the first support plate 202 and the second support plate 203 , such as two or Four.
  • the plurality of first fixing components 204 on the first support plate 202 are evenly arranged around the circumference of the first mounting hole 2021
  • the plurality of second fixing components 204 on the second support plate 203 are arranged around the second mounting hole 2021 .
  • the holes 2031 are evenly arranged in the circumferential direction.
  • the first mounting hole 2021 has a first engraved line 20211
  • the second mounting hole 2031 has a second engraved line 20311.
  • the first scribed line 20211 is provided on the wall surface of the first mounting hole 2021 close to the first surface 2011, and the second scribed line 20311 is provided on the wall surface of the second mounting hole 2031 close to the first surface 2011.
  • the extending direction of the first scribed line 20211 and the extending direction of the second scribed line 20311 are both parallel to the central axis L1 (or L2) of the first mounting hole 2021 (or the second mounting hole 2031).
  • the two valve seats 1 to be processed are respectively installed on the first support plate 202 and the second support plate 203, scribing is performed on the two valve seats 1 to be processed, so that the two valve seats 1 to be processed are scribed.
  • a valve seat engraved line is formed on each of the valve seats 1, and the valve seat engraved line is aligned with the corresponding first engraved line 20211 or the second engraved line 20311. In this way, by aligning the first engraved line 20211 with the valve seat engraved line of the first valve seat 1 and the second engraved line 20311 with the valve seat engraved line of the second valve seat 1, the two valve seats 1 to be processed can be made
  • the contact surfaces 1022 of the recessed portion 102 face each other.
  • the first engraved line 20211, the second engraved line 20311, and the valve seat engraved line are respectively carved with a carving knife or marked with paint. But it is not limited to this.
  • the processing fixture 2 in order to prevent the boss portion 101 of the valve seat 1 from blocking the first scribed line 20211 when the first valve seat 1 is installed on the first support plate 202, the processing fixture 2 also includes a first bump. 206.
  • the first protrusion 206 is disposed on a side of the first support plate 202 away from the processing space 205, and the first mounting hole 2021 of the first support plate 202 passes through the first protrusion in a direction parallel to the central axis L1 of the first mounting hole 2021. Block 206.
  • the first scribed line 20211 of the first mounting hole 2021 is still located on the wall of the first bump 206 close to the first surface 2011.
  • the processing fixture 2 also includes a second bump 207.
  • the second protrusion 207 is provided on the side of the second support plate 203 away from the processing space 205, and the second mounting hole 2031 of the second support plate 203 passes through the second protrusion in a direction parallel to the central axis L2 of the second installation hole 2031. Block 207.
  • the second engraved line 20311 of the second mounting hole 2031 is still located on the wall of the second bump 207 close to the first surface 2011.
  • the boss portions 101 of the two valve seats 1 to be processed are respectively installed in the first mounting hole 2021 and the second mounting hole 2031, the two boss portions 101 are respectively engaged in the first mounting hole 2021 and the second mounting hole. 2031, but cannot pass through the first mounting hole 2021 and the second mounting hole 2031.
  • the boss portion 101 will not interfere with the first engraved line 20211 and the second engraved line.
  • 20311 is blocked to facilitate the alignment of the first scribed line 20211 and the second scribed line 20311 with the valve seat scribed line.
  • the first bump 206 and the second bump 207 are made of the same material as the first support plate 202 and the second support plate 203 respectively.
  • the first bump 206 and the first support plate 202 may have an integrated structure or a separate structure.
  • the second bump 207 and the second support plate 203 may be of an integrated structure or may be of a separate structure.
  • the first bump 206 and the second bump 207 respectively The first support plate 202 and the second support plate 203 are connected by a brazing process.
  • the first support plate 202 and the second support plate 203 are made of the same material as the base 201, and may also be cast iron or stainless steel.
  • the first support plate 202 and the second support plate 203 and the base 201 can be an integrated structure or a separate structure.
  • the first support plate 202 and the second support plate 203 and the base 201 have an integrated structure
  • the first support plate 202 and the second support plate 203 and the base 201 are integrally formed using a forging process or a casting process.
  • the first support plate 202 and the second support plate 203 and the base 201 have separate structures, as shown in FIG. 6 , the first support plate 202 and the second support plate 203 are detachably connected to the base 201 respectively.
  • the processing fixture 2 when the first support plate 202 and the second support plate 203 are detachably connected to the base 201 respectively, the processing fixture 2 further includes at least two fasteners 208 .
  • the processing fixture 2 includes two fasteners 208 , one of the two fasteners 208 is configured to connect the first support plate 202 and the base 201 , and the other is configured to connect the second support plate 203 to the base 201 .
  • Base 201 connection is configured to connect the first support plate 202 and the base 201 .
  • fasteners 208 used to connect any one of the first support plate 202 and the second support plate 203 to the base 201 are the same, so the fasteners 208 used to connect the first support plate 202 to the base 201 are used below.
  • Fastener 208 is used as an example for explanation.
  • Fastener 208 includes threaded connection 2081 .
  • the base 201 includes a first threaded hole 2013, the first support plate 202 includes a second threaded hole 2022, the central axis of the first threaded hole 2013 and the central axis of the second threaded hole 2022 are both perpendicular to the first surface 2011, and the first thread The central axis of the hole 2013 coincides with the central axis of the second threaded hole 2022, so that the second threaded hole 2022 of the first support plate 202 is aligned with the first threaded hole 2013 of the base 201.
  • the threaded connector 2081 is disposed in the first threaded hole 2013 and the second threaded hole 2022 and is configured to pass through the first threaded hole 2013 and the second threaded hole 2022 to connect the base 201 with the first support plate 202 .
  • the threaded connector 2081 is a screw or threaded rod. But it is not limited to this.
  • each fastener 208 includes a plurality of threaded connections 2081, such as two or four.
  • the number of multiple threaded connectors 2081 can be adjusted according to actual needs.
  • the fastener 208 also includes a positioning pin 2082 .
  • the base 201 also includes a first socket 2014
  • the first support plate 202 also includes a second socket 2023
  • the central axis of the first socket 2014 and the central axis of the second socket 2023 are both perpendicular to the first surface 2011, and the The central axis of one socket 2014 coincides with the central axis of the second socket 2023, so that the second socket 2023 of the first support plate 202 is aligned with the first socket 2014 of the base 201.
  • the positioning pin 2082 is disposed in the first socket 2014 and the second socket 2023 and is configured to pass through the first socket 2014 and the second socket 2023 to align the first threaded hole 2013 and the second threaded hole 2022 .
  • the first threaded hole 2013 and the second threaded hole 2022 are aligned to facilitate the connection between the first support plate 202 and the base 201 .
  • the cross section of the positioning pin 2082 parallel to the first surface 2011 is a polygonal cross section, such as a triangle, a quadrilateral, a pentagon, or a hexagon. In this way, after the positioning pins 2082 are respectively inserted into the first socket 2014 and the second socket 2023, the first support plate 202 will not rotate relative to the base 201.
  • connection method between the second support plate 203 and the base 201 can refer to the aforementioned connection between the first support plate 202 and the base 201 The connection method will not be described again here.
  • the processing fixture 2 needs to be fixed on the processing machine tool 3.
  • the processing fixture 2 is fixed to the processing machine tool 3 through its base 201 .
  • the base 201 when the processing fixture 2 is fixed to the processing machine tool 3 through its base 201, as shown in Figures 4 and 5, the base 201 includes a through hole 2015 that penetrates the first surface 2011 of the base 201 and the second surface 2012, and is connected to the processing space 205.
  • the central axis of the via hole 2015 is perpendicular to the first surface 2011.
  • the central axis of the via hole 2015 is perpendicular to the central axis L1 of the first mounting hole 2021 or the central axis L2 of the second mounting hole 2022 .
  • the surface runout of the inner wall of the via hole 2015 can be monitored through a dial indicator, so that the base 201 of the processing fixture 2 is in a flat state, thereby not affecting the subsequent inspection of the valve seat 1 machining accuracy requirements.
  • FIG. 7 is a structural diagram of a base connected to a processing machine tool according to some embodiments.
  • the processing machine tool 3 includes a chuck 301 (eg, a four-jaw chuck 301 ), and the four-jaw chuck 301 is disposed on the main spindle of the processing machine tool 3 .
  • the base 201 is placed into the four-claw chuck 301 , and the base 201 is clamped by the four-claw chuck 301 , thereby fixing the processing fixture 2 on the spindle of the processing machine tool 3 .
  • FIG. 8 is a structural diagram of another base connected to a processing machine tool according to some embodiments.
  • the processing machine tool 3 includes a taper shank 302 (eg, Morse taper shank 302 ), which is disposed on the main spindle of the processing machine tool 3 .
  • the base 201 also includes a tapered hole 2016 (eg, a Morse taper hole 2016) located on the side of the base 201 on which the second surface 2012 is located.
  • the tapered hole 2016 is configured to mate with the tapered shank 302 . In this way, through the plug-in fit between the taper shank 302 and the taper hole 2016 of the base 201, the processing fixture 2 can be fixed on the spindle of the processing machine tool 3.
  • FIG. 9 is a structural diagram of yet another base connected to a processing machine tool according to some embodiments.
  • the processing machine tool 3 includes a switching disk 303 , which is disposed on the main spindle of the processing machine tool 3 .
  • the side of the base 201 on which the second surface 2012 is located is detachably connected to the conversion plate 303 . In this way, through the detachable connection between the base 201 and the switching plate 303 of the processing machine tool 3, the processing fixture 2 can be fixed on the spindle of the processing machine tool 3.
  • the conversion plate 303 is a flange plate, and the base 201 is detachably connected to the conversion plate 303 through bolts.
  • Some embodiments of the present disclosure also provide a method for processing a plug valve seat.
  • FIG. 10 is a flow chart of a method for processing a plug valve seat according to some embodiments. As shown in FIG. 3B , FIG. 4 and FIG. 10 , this processing method is applied to the processing jig 2 of the above-mentioned plug valve seat 1 .
  • the processing method includes steps from S1 to S3.
  • the material is cut according to the specifications of the valve seat 1 and weighed and inspected to ensure that each part of the valve seat 1 has sufficient machining allowance. It should be noted that the machining allowance of each part of the valve seat 1 cannot be too large to avoid wasting the raw materials of the valve seat 1 .
  • valve seat 1 is made of cast iron material (e.g., ductile iron) or stainless steel material.
  • the processing method of rough machining the blank in S2 to form the boss portion 101 and the recessed portion 102 in the blank includes S21 to S22.
  • the present disclosure does not limit the method of processing the recessed portion 102 of the blank, and can be adjusted according to actual needs, such as the processing batch size, processing cycle, and the deformation amount and allowance required for subsequent processing steps.
  • horizontal milling or vertical milling is used to form the recessed portion 102 .
  • the processing method of synchronously finishing two rough-machined blanks in S3 to form two valve seats 1 with the same processing accuracy includes S31 to S34.
  • the processing method of finishing the boss portions 101 of the two annealed blanks in S32 includes S321 to S323.
  • the area in the billet that is carburized and quenched is called the carburized area of the billet, and the area in the billet that is not carburized and quenched is called the non-carburized area of the billet.
  • the non-carburized area of the blank is protected by coating.
  • S323 finish turning the two carburized and quenched blanks. In this way, by finishing the carbon black and anti-leakage agent coating on the surface of the blank, the blank can be restored to its original metallic color.
  • S33 Score the boss portions 101 of the two finished blanks to form valve seat scores so that the two finished blanks can be aligned and fixed on the processing fixture 2.
  • scribing is performed on the wall surface (for example, the inner wall surface or the outer wall surface) of the boss portion 101 of the two finished blanks to form a valve seat score line on the blank to facilitate subsequent processes.
  • the two valve seat engraved lines are aligned with the first engraved line 20211 and the second engraved line 20311 respectively.
  • the processing method of fixing the two scribed blanks of the same plug valve 400 on the processing fixture 2 in S34 and synchronously finishing the recessed portions 102 of the two scribed blanks includes: S341 to S343.
  • the boss portion 101 of the blank of one of the two valve seats 1 of the same plug valve 400 is installed into the first mounting hole 2021 on the first support plate 202, and is connected to the base through the valve seat score line.
  • the first scribed line 20211 is aligned, so that the pressure block 2041 is aligned with the abutment surface 1022; then the rotating screw 2042 is rotated clockwise, so that the pressure block 2041 moves along the direction of the guide rod 2043 under the limiting effect of the guide rod 2043.
  • the extending direction moves toward the blank of the valve seat 1 and comes into contact with the abutment surface 1022 , so that the blank of the valve seat 1 is pressed against the first support plate 202 under the abutting action of the pressing block 2041 .
  • the operation of installing the boss portion 101 of the other of the two valve seats 1 of the same plug valve 400 into the second mounting hole 2031 on the second support plate 203 is the same as the above-mentioned installation of the boss portion 101 of the blank of the valve seat 1.
  • the operation of installing the platform portion 101 into the first mounting hole 2031 on the first support plate 202 is the same and will not be described again.
  • a dial indicator is used to measure the blank. Detect and correct the installation position of the blank, and then fix the blank through the fixing assembly 204. In this way, the assembly error between the blank of the valve seat 1 and the first mounting hole 2021 or the second mounting hole 2031 can be reduced, thereby ensuring the processing accuracy of the recessed portion 102 of the blank during processing.
  • the base 201 is clamped to the processing machine tool 3. It should be noted that there are many ways to connect the base 201 to the processing machine tool 3. The above content has been described and will not be repeated here.
  • a dial indicator is used to monitor the surface runout of the inner wall of the via 2015 to correct the clamping position of the base 201. In this way, it is ensured that the base 201 is placed flat after being clamped to the processing machine tool 3, thereby ensuring the processing accuracy of the recessed portion 102 of the blank during processing.
  • an inner diameter dial indicator is used to detect the curvature of the arc surfaces 1021 of the two recessed portions 102 . This can better ensure the control of the dimensional tolerance of the arcuate surfaces 1021 of the two recessed portions 102, thereby ensuring that the two valve seats 1 of the same plug valve 400 meet the same accuracy requirements.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Valve Housings (AREA)
  • Lift Valve (AREA)

Abstract

公开了一种旋塞阀阀座的加工夹具，包括底座（201）、第一支撑板（202）、第二支撑板（203）、第一固定组件和第二固定组件；第一支撑板（202）设置在底座（201）上，包括第一安装孔（2021），第一安装孔（2021）被配置为固定待加工的第一阀座的凸台部；第二支撑板（203）相对第一支撑板（202）设置在底座（201）上，包括第二安装孔（2031），第二安装孔（2031）被配置为固定待加工的第二阀座的凸台部；第一安装孔（2021）与第二安装孔（2031）相对，且第一支撑板（202）和第二支撑板（203）之间形成有加工空间；第一固定组件和第二固定组件均处在加工空间内，被配置为将第一阀座和第二阀座分别固定在第一支撑板（202）和第二支撑板（203）上，使得处在加工空间内的第一阀座的凹陷部与第二阀座的凹陷部相对。

Description

旋塞阀阀座的加工夹具及加工方法
本申请要求于2022年3月7日提交的、申请号为202210225249.7的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本公开涉及阀门技术领域，尤其涉及一种旋塞阀阀座的加工夹具及加工方法。
背景技术
旋塞阀广泛地应用在石油、化工以及制药等领域。旋塞阀是一种柱塞形的旋转阀，通过控制其内部阀芯的转动，从而实现旋塞阀的开启或关闭。
阀座是旋塞阀中的关键部件，通过阀座与阀芯的紧密配合，从而形成旋塞阀的机械密封。
发明内容
本公开一些实施例提供一种旋塞阀阀座的加工夹具。所述阀座具有凸台部和凹陷部，所述凸台部被配置为与所述旋塞阀的阀体配合，所述凹陷部被配置为与所述旋塞阀的阀芯配合。所述加工夹具包括底座、第一支撑板、第二支撑板、第一固定组件和第二固定组件。所述第一支撑板设置在所述底座上，包括第一安装孔，所述第一安装孔被配置为固定待加工的第一阀座的所述凸台部。所述第二支撑板相对所述第一支撑板设置在所述底座上，包括第二安装孔，所述第二安装孔被配置为固定待加工的第二阀座的所述凸台部。所述第一安装孔与所述第二安装孔相对，且所述第一支撑板和所述第二支撑板之间形成有加工空间。所述第一固定组件处在所述加工空间内，被配置为将所述第一阀座固定在所述第一支撑板上。所述第二固定组件处在所述加工空间内，被配置为将所述第二阀座固定在所述第二支撑板上。所述第一固定组件和所述第二固定组件被配置为使得处在加工空间内的所述第一阀座的凹陷部与所述第二阀座的凹陷部相对。
本公开一些实施例还提供一种旋塞阀阀座的加工方法。所述加工方法应用于所述旋塞阀阀座的所述加工夹具。所述加工方法包括：准备所述阀座的坯料；对所述坯料进行加工，以使所述坯料形成所述凸台部和所述凹陷部；对形成所述凸台部和所述凹陷部的两个所述坯料进行同步加工，以使两个所述坯料形成加工精度相同的两个阀座。
附图说明
为了更清楚地说明本公开中的技术方案，下面将对本公开一些实施 例中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本公开的一些实施例的附图，对于本领域普通技术人员来讲，还可以根据这些附图获得其他的附图。此外，以下描述中的附图可以视作示意图，并非对本公开实施例所涉及的产品的实际尺寸、方法的实际流程、信号的实际时序等的限制。
图1为根据一些实施例的一种旋塞阀的剖视结构图；
图2为相关技术的一种旋塞阀阀座的结构图；
图3A为根据一些实施例的一种旋塞阀阀座的结构图；
图3B为图3A所示的旋塞阀阀座的局部结构图；
图4为根据一些实施例的一种旋塞阀阀座的加工夹具的整体结构图；
图5为图4所示的旋塞阀阀座的加工夹具的俯视图；
图6为图4所示的旋塞阀阀座的加工夹具的局部剖视图；
图7为根据一些实施例的一种底座与加工机床连接的结构图；
图8为根据一些实施例的另一种底座与加工机床连接的结构图；
图9为根据一些实施例的又一种底座与加工机床连接的结构图；
图10为根据一些实施例的一种旋塞阀阀座的加工方法的流程图。
在附图中：
400-旋塞阀；401-阀体；4011-阀腔；4012-通道；4013-阀杆腔；4014、4015-阀体的两端；402-阀芯；4021-阀芯孔；403-阀杆；
01-弧片；011-弧片通孔；
1-阀座；101-凸台部；102-凹陷部；1021-弧面；1022-抵接面；103-通孔；
2-加工夹具；201-底座；2011-第一表面；2012-第二表面；2013-第一螺纹孔；2014-第一插孔；2015-过孔；2016-锥度孔；202-第一支撑板；2021-第一安装孔；20211-第一刻线；2022-第二螺纹孔；2023-第二插孔；203-第二支撑板；2031-第二安装孔；20311-第二刻线；204-固定组件；2041-压块；2042-转动螺杆；2043-导向杆；2044-拧头；205-加工空间；206-第一凸块；207-第二凸块；208-紧固件；2081-螺纹连接件；2082-定位插销；
3-加工机床；301-卡盘；302-锥柄；303-转换盘。
具体实施方式
下面结合附图，对本公开一些实施例中的技术方案进行清楚、完整地描 述，显然，所描述的实施例仅仅是本公开一部分实施例，而不是全部的实施例。基于本公开所提供的实施例，本领域普通技术人员所获得的所有其他实施例，都属于本公开保护的范围。
除非上下文另有要求，否则，在整个说明书和权利要求书中，术语“包括(comprise)”及其其他形式例如第三人称单数形式“包括(comprises)”和现在分词形式“包括(comprising)”被解释为开放、包含的意思，即为“包含，但不限于”。在说明书的描述中，术语“一个实施例(one embodiment)”、“一些实施例(some embodiments)”、“示例性实施例(exemplary embodiments)”、“示例(example)”、“特定示例(specific example)”或“一些示例(some examples)”等旨在表明与该实施例或示例相关的特定特征、结构、材料或特性包括在本公开的至少一个实施例或示例中。上述术语的示意性表示不一定是指同一实施例或示例。此外，所述的特定特征、结构、材料或特点可以以任何适当方式包括在任何一个或多个实施例或示例中。
以下，在本公开实施例的描述中，需要理解的是，术语“中心”、“上”、“下”、“前”、“后”、“左”、“右”、“竖直”、“水平”、“顶”、“底”、“内”、“外”等指示的方位或位置关系为基于附图所示的方位或位置关系，仅是为了便于描述本公开和简化描述，而不是指示或暗示所指的装置或元件必须具有特定的方位、以特定的方位构造和操作，因此不能理解为对本公开的限制。
术语“第一”、“第二”仅用于描述目的，而不能理解为指示或暗示相对重要性或者隐含指明所指示的技术特征的数量。由此，限定有“第一”、“第二”的特征可以明示或者隐含地包括一个或者更多个该特征。在本公开实施例的描述中，除非另有说明，“多个”的含义是两个或两个以上。
在描述一些实施例时，可能使用了“安装”、“相连”和“连接”及其衍伸的表达。需要说明的是，除非另有明确的规定和限定，术语“安装”、“相连”、“连接”应做广义理解，例如，“连接”可以是固定连接，也可以是可拆卸连接，或成一体；“相连”可以是直接相连，也可以是通过中间媒介间接相连，还可以是两个元件内部的连通。对于本领域的普通技术人员而言，可以具体情况理解上述术语在本公开中的具体含义。
“A、B和C中的至少一个”与“A、B或C中的至少一个”具有相同含义，均包括以下A、B和C的组合：仅A，仅B，仅C，A和B的组合，A和C的组合，B和C的组合，及A、B和C的组合。
“A和/或B”，包括以下三种组合：仅A，仅B，及A和B的组合。
如本文中所使用，根据上下文，术语“如果”任选地被解释为意思是“当……时”或“在……时”。类似地，根据上下文，短语“如果确定……”任选地被解释为是指“在确定……时”。
本文中“适用于”或“被配置为”的使用意味着开放和包容性的语言，其不排除适用于或被配置为执行额外任务或步骤的设备。
另外，“基于”的使用意味着开放和包容性，因为“基于”一个或多个所述条件或值的过程、步骤、计算或其他动作在实践中可以基于额外条件或超出所述的值。
如本文所使用的那样，“约”、“大致”或“近似”包括所阐述的值以及处于特定值的可接受偏差范围内的平均值，其中所述可接受偏差范围如由本领域普通技术人员考虑到正在讨论的测量以及与特定量的测量相关的误差(即，测量系统的局限性)所确定。
如本文所使用的那样，“平行”、“垂直”、“相等”包括所阐述的情况以及与所阐述的情况相近似的情况，该相近似的情况的范围处于可接受偏差范围内，其中所述可接受偏差范围如由本领域普通技术人员考虑到正在讨论的测量以及与特定量的测量相关的误差(即，测量系统的局限性)所确定。例如，“平行”包括绝对平行和近似平行，其中近似平行的可接受偏差范围例如可以是5°以内偏差；“垂直”包括绝对垂直和近似垂直，其中近似垂直的可接受偏差范围例如也可以是5°以内偏差。“相等”包括绝对相等和近似相等，其中近似相等的可接受偏差范围内例如可以是相等的两者之间的差值小于或等于其中任一者的5％。
本公开一些实施例提供一种旋塞阀400。
图1为根据一些实施例的一种旋塞阀的剖视结构图。如图1所示，旋塞阀400包括阀体401、阀芯402、阀座1以及阀杆403。阀体401包括设置在其内部的阀腔4011、通道4012以及阀杆腔4013。通道4012贯穿阀体401的两端4014和4015并且与阀腔4011连通，阀杆腔4013与阀腔4011连通且与通道4012相垂直。通常将阀芯402和阀座1一同设置在旋塞阀400的阀腔4011内，阀杆403贯穿阀杆腔4013并与阀芯402相连接，用于控制阀芯402的转动。阀芯402呈圆柱状结构；阀芯402具有阀芯孔4021，该阀芯孔4021设置在阀芯402的侧壁上并贯穿整个阀芯402。当阀杆403带动阀芯402转动，直至阀芯孔4021与通道4012连通时，旋塞阀400处于开启状态；当阀杆403带动阀芯402转动至阀芯孔4021与通道4012错开时，旋塞阀400处于关闭状态。
图2为相关技术的一种旋塞阀阀座的结构图。如图2所示，相关技术中的旋塞阀阀座为弧片01。弧片01一般为1/3或1/2圆筒的片状结构，该弧片01通过其内弧与阀芯402侧壁上的外弧面贴合紧密，以实现对旋塞阀400的机械密封。弧片01具有弧片通孔011，在旋塞阀400处于开启状态时，该弧片通孔011与阀体401内的通道4012连通对齐。
但是，由于弧片01为片状结构，而片状结构本身属于薄壁构件，结构强度低，因此在弧片01与阀体401的装配过程中，弧片通孔011不易与阀体401内的通道4012连通对齐。图3A为根据一些实施例的一种旋塞阀阀座的结构图，图3B为图3A所示的旋塞阀阀座的局部结构图。在一些实施例中，为了便于旋塞阀400中阀座1与阀体401的装配，如图3A和图3B所示，阀座1包括凸台部101和凹陷部102。凸台部101与凹陷部102相抵接。凸台部101与凹陷部102可以为一体式结构，也可以为分离式结构。本公开对此不做限定。
阀座1还包括通孔103，该通孔103设置在阀座1的内部，且贯穿凸台部101和凹陷部102。通孔103被配置为将凸台部101的内部与凹陷部102的内部连通。
在一些实施例中，凸台部101为筒状结构。需要说明的是，本公开对凸台部101的形状不做限定，其可以为圆筒状，也可以为多边形筒状。在一些实施例中，凹陷部102为弧状结构。凹陷部102包括弧面1021，该弧面1021为凹陷部102的远离凸台部101的一端的表面。在进行旋塞阀400的组装时，凸台部101被配置为与旋塞阀400的阀体401进行装配。凹陷部102被配置为对旋塞阀400的阀芯402进行密封。
在一些实施例中，凸台部101与阀体401内的通道4012插接配合。这样可以使得阀座1的通孔103与阀体401内的通道4012连通对齐，从而有利于实现阀座1与阀体401的装配。在一些实施例中，弧面1021与阀芯402的侧壁相贴合，以实现阀座1与阀芯402的机械密封。
在一些实施例中，为了便于阀座1在加工时被其加工夹具夹持，凹陷部102还包括抵接面1022，该抵接面1022设置在弧面1021的远离凸台部101的一侧。抵接面1022与弧面1021连接，以形成台阶面。抵接面1022被配置为与阀座1的加工夹具相抵接，以避免在弧面1021被夹持时出现损坏。
在一些实施例中，凹陷部102包括多个抵接面1022，例如两个或者四个抵接面1022。多个抵接面1022均匀设置在弧面1021的远离凸台部101的一侧。但不局限于此。
一般而言，每个旋塞阀400包括两个弧度相同的阀座1(例如，两个阀座1沿图1的左右方向对称布置)。在一些技术中，对同一旋塞阀400的两个阀座1分别进行单独加工。但是，在对同一旋塞阀400的两个阀座1分别进行单独加工时，难以保证上述两个阀座1具有相同的加工精度，从而会对阀座1与阀芯402之间的密封性造成影响。
为此，本公开一些实施例还提供了一种旋塞阀阀座的加工夹具，使用该加工夹具之后，可以使在同一旋塞阀400中使用的两个阀座1同时被加工，从而有利于使该两个阀座1具有相同的加工精度。
图4为根据一些实施例的一种旋塞阀阀座的加工夹具的整体结构图，图5为图4所示的旋塞阀阀座的加工夹具的俯视图，图6为图4所示的旋塞阀阀座的加工夹具的局部剖视图。如图4、图5和图6所示，加工夹具2包括底座201、第一支撑板202、第二支撑板203和至少两个固定组件204。
底座201具有相对设置的第一表面2011和第二表面2012。在一些实施例中，在垂直于第一表面2011或者第二表面2012的方向上，底座201的投影形状为多边形或者圆形。示例地，如图5所示，在垂直于第一表面2011的方向上，底座201的投影形状为六边形。在一些实施例中，底座201的材质为铸铁(例如，球墨铸铁)或者不锈钢。但不局限于此。
第一支撑板202和第二支撑板203相对设置在底座201的第一表面2011上，且结构大致相同。在一些实施例中，第一支撑板202和第二支撑板203对称排布在第一表面2011上，且均垂直于第一表面2011。
第一支撑板202包括第一安装孔2021，该第一安装孔2021被配置为固定一个待加工的阀座1(即第一阀座1)的凸台部101。第二支撑板203包括第二安装孔2031，该第二安装孔2031被配置为固定另一个待加工的阀座1(即第二阀座1)的凸台部101。需要说明的是，两个待加工的阀座1的结构相同，本公开一些实施例将两个待加工的阀座1分别称为第一阀座1和第二阀座1，仅为了便于描述。
第一安装孔2021的中心轴线L1与第二安装孔2031的中心轴线L2重合(中心轴线L1和L2如图5中的虚线所示)，即第一安装孔2021与第二安装孔2031相对设置。这样，可以使得安装至第一支撑板202上的第一阀座1的凸台部101与安装至第二支撑板203上的第二阀座1的凸台部101的位置相对，进而使得第一阀座1的凹陷部102与第二阀座1的凹陷部102相对设置。
加工夹具2具有加工空间205。该加工空间205位于底座201的第一表面2011上的第一支撑板202与第二支撑板203之间，即加工空间205设置于底 座201的第一表面2011、第一支撑板202的靠近第二支撑板203的表面、以及第二支撑板203的靠近第一支撑板202的表面所形成的空间内。加工空间205被配置为容纳上述两个待加工的阀座1(即第一阀座1和第二阀座1)的凹陷部102。
至少两个固定组件204位于加工空间205内，且分别设置在第一支撑板202和第二支撑板203上，即第一支撑202和第二支撑板203中的任一支撑板上均设置有至少一个固定组件204。至少两个固定组件204被配置为分别将两个待加工的阀座1的凹陷部102固定在加工空间205内，以实现对两个阀座1的同时加工。
在本公开一些实施例提供的旋塞阀阀座1的加工夹具2中，将第一阀座1的凸台部101安装至第一支撑板202的第一安装孔2021内，第二阀座1的凸台部101安装至第二支撑板203的第二安装孔2031内后，由于第一支撑202和第二支撑板203中的任一支撑板上均设置有至少一个固定组件204，并且固定组件204处在加工空间205内，因此，两个待加工的阀座1的凸台部101分别通过对应的固定组件204固定在第一支撑板202和第二支撑板203上，从而使得处在加工空间205内的两个待加工的阀座1的凹陷部102相对设置。
需要说明的是，设置在第一支撑板202和第二支撑板203中的任一支撑板上的固定组件204的结构和作用均相同，为了便于描述，本公开一些实施例将设置在第一支撑板202上的固定组件204称为第一固定组件204、并将设置在第二支撑板203上的固定组件204称为第二固定组件204。以下以设置在第一支撑板202上的第一固定组件204为例进行说明。
在一些实施例中，如图4和图5所示，第一固定组件204包括压块2041、转动螺杆2042以及导向杆2043。压块2041设置于加工空间205内，被配置为抵接凹陷部102的抵接面1022。转动螺杆2042的延伸方向和导向杆2043的延伸方向均平行于第一安装孔2021的中心轴线L1，即导向杆2043与转动螺杆2042平行设置。转动螺杆2042的一端与第一支撑板202转动连接、另一端穿过压块2041并与压块2041螺纹连接。导向杆2043的一端与第一支撑板202固定连接、另一端穿过压块2041并与压块2041滑动连接。
在一些实施方式中，导向杆2043的一端通过焊接或者螺纹连接的方式与第一支撑板202进行固定。
在一些实施例中，压块2041、转动螺杆2042以及导向杆2043的材质均相同。示例地，压块2041、转动螺杆2042以及导向杆2043的材质为不锈钢或者碳钢。但不局限于此。
在一些实施例中，转动螺杆2042的一端通过套设轴承的方式与第一支撑板202进行转动连接。但不局限于此。
在一些实施例中，如图4和图5所示，为了便于实现转动螺杆2042相对于第一支撑板202的转动，第一固定组件204还包括拧头2044。拧头2044位于转动螺杆2042背离压块2041的一端，且设置在第一支撑板202远离第二支撑板203的一侧。需要说明的是，本公开对拧头2044的类型不做限定，其可以是六角拧头或者圆拧头。
如图3B和图4所示，在第一阀座1的加工过程中，将第一阀座1的凸台部101安装至第一安装孔2021后，对转动螺杆2042进行顺时针转动；由于压块2041与导向杆2043滑动连接，因此压块2041能够在导向杆2043的限位作用下，沿着导向杆2043的延伸方向朝向第一阀座1的凹陷部102运动，并与抵接面1022抵接。这样，可以使得第一阀座1在压块2041的抵接作用下与第一支撑板202抵紧。将第一阀座1通过压块2041抵紧在第一支撑板202上，可以有效防止第一阀座1在加工过程中出现晃动，从而保证了第一阀座1的加工精度。
此外，在第一阀座1的加工完成后，对转动螺杆2042进行逆时针转动，使得压块2041沿着导向杆2043的延伸方向背离第一阀座1运动，压块2041与第一阀座1脱离抵接，从而将加工完成的第一阀座1取出。
在压块2041与凹陷部102的抵接面1022相抵接后，如果压块2041处于砂轮的运动轨迹上，则在砂轮(例如，圆柱形的砂轮)精磨凹陷部102的弧面1021的过程中，容易导致压块2041与砂轮相接触。为避免这一不良后果，在一些实施例中，压块2041沿第一安装孔2021的中心轴线L1方向的截面大致为梯形，例如大致为直角梯形。压块2041具有斜面20411，例如斜平面或斜曲面；在将第一阀座1夹持在压块2041和第一支撑板202之间后，该斜面20411与第一阀座1的弧面1021相邻接。在一些实施例中，压块2041的斜平面与弧面1021的远离凸台部101的一侧边缘处的切线相平行；在另一些实施例中，压块2041的斜曲面的曲率与弧面1021的曲率相同。这样，可以使得砂轮在对第一阀座1的弧面1021进行打磨的过程中，有效避免压块2041与砂轮相接触。
需要说明的是，为确保两个阀座1具有相同的加工精度，两个待加工的阀座1在加工夹具2上的加工过程同时进行。而且，第二支撑板203上的第二阀座1的加工过程与第一支撑板202上的第一阀座1的加工过程大致相同，在此不再赘述。
在一些实施例中，为进一步避免两个阀座1在加工过程中出现晃动，第一支撑板202和第二支撑板203中任一支撑板上可以设置多个固定组件204，例如两个或者四个。在一些实施例中，第一支撑板202上的多个第一固定组件204围绕第一安装孔2021的周向均匀布置，第二支撑板203上的多个第二固定组件204围绕第二安装孔2031的周向均匀布置。
在一些实施例中，如图4和图5所示，为了便于两个待加工的阀座1的凹陷部102正对，即两个凹陷部102的弧面1021和抵接面1022分别正对，第一安装孔2021具有第一刻线20211，第二安装孔2031具有第二刻线20311。第一刻线20211设置在第一安装孔2021的靠近第一表面2011的壁面上，第二刻线20311设置在第二安装孔2031的靠近第一表面2011的壁面上。第一刻线20211的延伸方向与第二刻线20311的延伸方向均平行于第一安装孔2021(或者第二安装孔2031)的中心轴线L1(或者L2)。
在一些实施例中，在两个待加工的阀座1分别安装至第一支撑板202和第二支撑板203之前，在两个待加工的阀座1上进行划线，使得两个待加工的阀座1上分别形成有一个阀座刻线，该阀座刻线与对应的第一刻线20211或第二刻线20311对齐。这样，通过第一刻线20211与第一阀座1的阀座刻线对齐、第二刻线20311与第二阀座1的阀座刻线对齐，可以使得两个待加工的阀座1的凹陷部102的抵接面1022相正对。
在一些实施例中，第一刻线20211、第二刻线20311、以及阀座刻线分别用刻刀进行刻制，或者用涂料进行标识。但不局限于此。
在一些实施例中，为了避免第一阀座1在安装至第一支撑板202上时，阀座1的凸台部101遮挡住了第一刻线20211，加工夹具2还包括第一凸块206。第一凸块206设置在第一支撑板202背离加工空间205的一侧，且第一支撑板202的第一安装孔2021沿平行于第一安装孔2021的中心轴线L1方向穿过第一凸块206。此时，第一安装孔2021的第一刻线20211还位于第一凸块206的靠近第一表面2011的壁面上。
为了避免第二阀座1在安装至第二支撑板203上时，阀座1的凸台部101遮挡住了第二刻线20311，加工夹具2还包括第二凸块207。第二凸块207设置在第二支撑板203背离加工空间205的一侧，且第二支撑板203的第二安装孔2031沿平行于第二安装孔2031的中心轴线L2方向穿过第二凸块207。此时，第二安装孔2031的第二刻线20311还位于第二凸块207的靠近第一表面2011的壁面上。
两个待加工的阀座1的凸台部101分别安装至第一安装孔2021和第二安 装孔2031后，上述两个凸台部101分别卡接在第一安装孔2021和第二安装孔2031内，而无法穿过第一安装孔2021和第二安装孔2031。这样一来，通过将第一刻线20211和第二刻线20311分别设置在第一凸块206和第二凸块207上，凸台部101不会对第一刻线20211和第二刻线20311进行遮挡，以便于第一刻线20211和第二刻线20311与阀座刻线的对齐。
在一些实施例中，第一凸块206和第二凸块207分别与第一支撑板202和第二支撑板203的材质相同。第一凸块206与第一支撑板202可以为一体式结构，也可以为分离式结构。或者，第二凸块207与第二支撑板203可以为一体式结构，也可以为分离式结构。示例地，当第一凸块206与第一支撑板202为分离式结构，或者第二凸块207与第二支撑板203为分离式结构时，第一凸块206和第二凸块207分别与第一支撑板202和第二支撑板203采用钎焊工艺连接。
在一些实施例中，第一支撑板202和第二支撑板203的材质与底座201的材质相同，也可为铸铁或者不锈钢。
在一些实施例中，第一支撑板202和第二支撑板203与底座201可以为一体式结构，也可以为分离式结构。示例地，当第一支撑板202和第二支撑板203与底座201为一体式结构时，第一支撑板202和第二支撑板203与底座201均采用锻造工艺或者铸造工艺一体成型。当第一支撑板202和第二支撑板203与底座201为分离式结构时，如图6所示，第一支撑板202和第二支撑板203分别与底座201采用可拆卸的方式连接。
在一些实施例中，如图6所示，当第一支撑板202和第二支撑板203分别与底座201可拆卸连接时，加工夹具2还包括至少两个紧固件208。示例地，加工夹具2包括两个紧固件208，该两个紧固件208中的一个被配置为将第一支撑板202与底座201连接、另一个被配置为将第二支撑板203与底座201连接。
用于连接第一支撑板202和第二支撑板203中的任一支撑板与底座201的紧固件208的结构和作用均相同，因此以下以用于连接第一支撑板202与底座201的紧固件208为例进行说明。
紧固件208包括螺纹连接件2081。底座201包括第一螺纹孔2013，第一支撑板202包括第二螺纹孔2022，第一螺纹孔2013的中心轴线与第二螺纹孔2022的中心轴线均垂直于第一表面2011，且第一螺纹孔2013的中心轴线与第二螺纹孔2022的中心轴线重合，使得第一支撑板202的第二螺纹孔2022与底座201的第一螺纹孔2013对齐。螺纹连接件2081设置在第一螺纹孔2013 和第二螺纹孔2022内，被配置为穿过第一螺纹孔2013和第二螺纹孔2022后，以使底座201与第一支撑板202连接。
在一些实施例中，螺纹连接件2081为螺钉或者螺纹杆。但不局限于此。
在一些实施例中，每个紧固件208包括多个螺纹连接件2081，例如两个或者四个。多个螺纹连接件2081的数量可以根据实际需要进行调整。
在一些实施例中，如图6所示，为了在第一支撑板202与底座201连接的过程中，便于第一螺纹孔2013与第二螺纹孔2022对齐，紧固件208还包括定位插销2082。底座201还包括第一插孔2014，第一支撑板202还包括第二插孔2023，第一插孔2014的中心轴线与第二插孔2023的中心轴线均垂直于第一表面2011，且第一插孔2014的中心轴线与第二插孔2023的中心轴线重合，使得第一支撑板202的第二插孔2023与底座201的第一插孔2014对齐。定位插销2082设置在第一插孔2014和第二插孔2023内，被配置为穿过第一插孔2014和第二插孔2023后，以对齐第一螺纹孔2013和第二螺纹孔2022。
示例地，在第一支撑板202与底座201连接的过程中，将定位插销2082的一端插入底座201的第一插孔2014中，再将定位插销2082的另一端插入第一支撑板202的第二插孔2023中；或者是，将定位插销2082的一端插入第一支撑板202的第二插孔2023中，再将定位插销2082的另一端插入第一插孔2014中。从而，使得第一螺纹孔2013与第二螺纹孔2022对齐，以便于实现第一支撑板202与底座201的连接。
在一些实施例中，定位插销2082的平行于第一表面2011的横截面为多边形横截面，例如三角形、四边形、五边形或六边形。这样，可以使得定位插销2082分别插入第一插孔2014中和第二插孔2023中后，第一支撑板202不会与底座201发生相对转动。
需要说明的是，当第一支撑板202和第二支撑板203分别与底座201可拆卸连接时，第二支撑板203与底座201的连接方式可参考前述第一支撑板202与底座201之间的连接方式，在此不再赘述。
在使用加工夹具2对阀座1进行加工的过程中，需要将加工夹具2固定在加工机床3上。在一些实施例中，加工夹具2通过其底座201与加工机床3进行固定。
在一些实施例中，当加工夹具2通过其底座201与加工机床3进行固定时，如图4和图5所示，底座201包括过孔2015，该过孔2015贯穿底座201的第一表面2011和第二表面2012，且与加工空间205连通。过孔2015的中 心轴线垂直于第一表面2011。示例地，过孔2015的中心轴线与第一安装孔2021的中心轴线L1或者第二安装孔2022的中心轴线L2垂直。这样，在将底座201装夹至加工机床3上后，可以通过百分表监测过孔2015的内壁的表面跳动，使得加工夹具2的底座201处于放平状态，从而不影响此后对阀座1的加工精度的要求。
图7为根据一些实施例的一种底座与加工机床连接的结构图。在一些实施例中，如图7所示，加工机床3包括卡盘301(例如，四爪卡盘301)，该四爪卡盘301设置在加工机床3的主轴上。此时，将底座201放入至四爪卡盘301内，通过四爪卡盘301对底座201进行夹持，从而实现将加工夹具2固定在加工机床3的主轴上。
图8为根据一些实施例的另一种底座与加工机床连接的结构图。在一些实施例中，如图8所示，加工机床3包括锥柄302(例如，莫氏锥柄302)，该锥柄302设置在加工机床3的主轴上。底座201还包括锥度孔2016(例如，莫氏锥度孔2016)，该锥度孔2016位于底座201的第二表面2012所在的一侧。锥度孔2016被配置为与锥柄302配合插接。这样，通过锥柄302与底座201的锥度孔2016之间的插接配合，可以实现将加工夹具2固定在加工机床3的主轴上。
图9为根据一些实施例的又一种底座与加工机床连接的结构图。在一些实施例中，如图9所示，加工机床3包括转换盘303，该转换盘303设置在加工机床3的主轴上。底座201的第二表面2012所在的一侧与转换盘303采用可拆卸的方式进行连接。这样，通过底座201与加工机床3的转换盘303之间的可拆卸连接，可以实现将加工夹具2固定在加工机床3的主轴上。
在一些实施例中，转换盘303为法兰盘，底座201通过螺栓与转换盘303可拆卸连接。
本公开一些实施例还提供了一种旋塞阀阀座的加工方法。
图10为根据一些实施例的一种旋塞阀阀座的加工方法的流程图。如图3B、图4以及图10所示，该加工方法应用于上述旋塞阀阀座1的加工夹具2中。所述加工方法包括如S1下至S3。
S1，准备上述阀座1的坯料。
在一些实施例中，按阀座1的规格进行锯料，并进行称重检验，以保证阀座1的各部位均有足够的加工余量。需要说明的是，阀座1的各部位的加工余量不能过大，以免造成阀座1的原材料的浪费。
在一些实施例中，阀座1由铸铁材料(例如，球墨铸铁)或者不锈钢材 料制成。
S2、对坯料进行粗加工，以使坯料形成凸台部101和凹陷部102。
在一些实施例中，S2中对坯料进行粗加工，以使坯料形成凸台部101和凹陷部102的加工方法包括S21至S22。
S21，通过车床对坯料的大小、外形以及通孔103进行粗加工。需要说明的是，在对坯料进行粗加工的过程中，需要保证阀座1的各部位留量准确，以为后续的加工工序做好安装、定位基准的准备。
S22，对粗车后的坯料进行线切割，以使坯料形成凹陷部102的弧面1021和抵接面1022。
需要说明的是，本公开对坯料进行凹陷部102的加工手段不做限定，可以根据实际需要，例如加工批量、加工周期、以及后续加工工序所需的变形量和留量的需要进行调整。在一些实施例中，采用卧加铣或者立加铣的加工手段形成凹陷部102。
S3，对两个粗加工后的坯料同步进行精加工，以形成两个加工精度相同的阀座1。
在一些实施例中，S3中对两个粗加工后的坯料同步进行精加工，以形成两个加工精度相同的阀座1的加工方法包括S31至S34。
S31，对两个线切割后的坯料进行退火。这样，可以消除坯料的内应力，以减少后续渗碳淬火的变形量。
S32，对两个退火后的坯料的凸台部101进行精加工。
在一些实施例中，S32中对两个退火后的坯料的凸台部101进行精加工的加工方法包括S321至S323。
S321，对两个退火后的坯料的凸台部101的圆柱面进行半精车加工，并为后续的加工工序(例如，凹陷部102的精加工工序)确定好安装和定位基准。
S322，对两个半精车后的坯料进行渗碳淬火。这样，可以提高坯料的硬度，以保证后续的阀座1在使用过程中耐冲刷，从而提高阀座1的使用寿命。
在一些实施例中，将坯料中进行渗碳淬火的区域称为坯料的渗碳区，将坯料中不进行渗碳淬火的区域称为坯料的非渗碳区。在对坯料的渗碳区进行渗碳淬火的过程中，对坯料的非渗碳区通过涂敷涂料的方式进行保护。
S323，对两个渗碳淬火后的坯料进行精车加工。这样，通过对坯料表面的碳黑和防渗剂涂料进行精车，可以使得坯料恢复至金属原色。
S33，在两个精车后的坯料的凸台部101上进行划线以形成阀座刻线，以 使两个精车后的坯料对齐固定在加工夹具2上。
在一些实施例中，在两个精车后的坯料的凸台部101的壁面(例如，内壁面或者外壁面)上进行划线，以在坯料上形成阀座刻线，从而便于在后续工序中实现两个阀座刻线分别与第一刻线20211和第二刻线20311的对齐。
S34，将同一旋塞阀400的两个划线后的坯料均固定在加工夹具2上，并对两个划线后的坯料的凹陷部102同步进行精加工。
在一些实施例中，S34中将同一旋塞阀400的两个划线后的坯料均固定在加工夹具2上，并对两个划线后的坯料的凹陷部102同步进行精加工的加工方法包括S341至S343。
S341，将划线后的两个坯料安装在加工夹具2的加工空间205内，且将两个划线后的坯料的凹陷部102相对设置。
S342，设置砂轮进入到固定在加工夹具2上的两个坯料的凹陷部102之间，并对固定后的两个坯料的凹陷部102同时进行精磨，以使得两个坯料的凹陷部102的弧面1021的弧度在加工完成后相同。
在一些实施例中，将同一旋塞阀400的两个阀座1中的一个的坯料的凸台部101安装至第一支撑板202上的第一安装孔2021内，并通过阀座刻线与第一刻线20211对齐，从而使得压块2041与抵接面1022相对齐；再对转动螺杆2042进行顺时针转动，使得压块2041在导向杆2043的限位作用下，沿着导向杆2043的延伸方向朝向阀座1的坯料运动，并与抵接面1022抵接，使得阀座1的坯料在压块2041的抵接作用下与第一支撑板202抵紧。
将同一旋塞阀400的两个阀座1中的另一个的坯料的凸台部101安装至第二支撑板203上的第二安装孔2031内的操作，与上述将阀座1的坯料的凸台部101安装至第一支撑板202上的第一安装孔2031内的操作相同，在此不再赘述。
在一些实施例中，在通过阀座刻线与第一刻线20211或者第二刻线20231对齐，使得坯料安装在第一安装孔2021或者第二安装孔2031后，采用百分表对坯料进行检测，并对坯料的安装位置进行校正，再通过固定组件204对坯料进行固定。这样，可以减小阀座1的坯料与第一安装孔2021或者第二安装孔2031的装配误差，从而保证坯料的凹陷部102在加工过程中的加工精度。
在一些实施例中，在通过固定组件204对坯料进行固定后，将底座201装夹至加工机床3上。需要说明的是，底座201与加工机床3的连接方式有多种，上述内容已经叙述，在此不再赘述。
在一些实施例中，采用百分表监测过孔2015的内壁的表面跳动，以对底 座201的装夹位置进行校正。这样，可以保证底座201装夹至加工机床3后放平，从而保证坯料的凹陷部102在加工过程中的加工精度。
在一些实施例中，在对两个坯料的凹陷部102精磨完成后，采用内径百分表对两个凹陷部102的弧面1021的弧度进行检测。这样可以更好地保证对两个凹陷部102的弧面1021的尺寸公差的控制，从而保证同一旋塞阀400的两个阀座1均达到相同的精度要求。
S343，对两个精磨后的坯料的边角进行打磨，以形成同一旋塞阀400的两个阀座1。这样，可以保证同一旋塞阀400的两个阀座1在与阀芯402的装配过程中，不会对阀芯402造成划伤。
在描述一些实施例时，具体特征、结构、材料或者特点可以在任何的一个或多个实施例中以合适的方式结合。
本领域的技术人员将会理解，本发明的公开范围不限于上述具体实施例，并且可以在不脱离本申请的精神的情况下对实施例的某些要素进行修改和替换。本申请的保护范围受所附权利要求的限制。

Claims (19)

  1. 一种旋塞阀阀座的加工夹具，所述阀座具有凸台部和凹陷部，所述凸台部被配置为与所述旋塞阀的阀体配合，所述凹陷部被配置为与所述旋塞阀的阀芯配合，其中，所述加工夹具包括：
    底座；
    第一支撑板，设置在所述底座上，包括第一安装孔，所述第一安装孔被配置为固定待加工的第一阀座的所述凸台部；
    第二支撑板，相对所述第一支撑板设置在所述底座上，包括第二安装孔，所述第二安装孔被配置为固定待加工的第二阀座的所述凸台部；其中，所述第一安装孔与所述第二安装孔相对，且所述第一支撑板和所述第二支撑板之间形成有加工空间；以及
    第一固定组件，处在所述加工空间内，被配置为将所述第一阀座固定在所述第一支撑板上；
    第二固定组件，处在所述加工空间内，被配置为将所述第二阀座固定在所述第二支撑板上；其中，所述第一固定组件和所述第二固定组件被配置为使得处在所述加工空间内的所述第一阀座的凹陷部与所述第二阀座的凹陷部相对。
  2. 根据权利要求1所述的旋塞阀阀座的加工夹具，所述凹陷部具有被配置为与所述旋塞阀的阀芯配合的弧面、以及位于所述弧面远离所述凸台部一侧的抵接面，其中，所述第一固定组件包括：
    压块，处于所述加工空间内，并被配置为抵接所述第一阀座的抵接面；
    转动螺杆，所述转动螺杆的延伸方向与所述第一安装孔的中心轴线平行，所述转动螺杆的一端与所述第一支撑板可转动地连接，另一端穿过所述压块并与所述压块螺纹连接；以及
    导向杆，所述导向杆与所述转动螺杆平行，所述导向杆的一端与所述第一支撑板固定连接，另一端穿过所述压块并与所述压块滑动连接。
  3. 根据权利要求2所述的旋塞阀阀座的加工夹具，其中，所述第一固定组件还包括拧头，所述拧头位于所述转动螺杆背离所述压块的一端，且设置在所述第一支撑板远离所述第二支撑板的一侧。
  4. 根据权利要求2或3所述的旋塞阀阀座的加工夹具，其中，所述压块具有斜面，所述斜面被配置为与所述第一阀座的所述弧面相邻接。
  5. 根据权利要求4所述的旋塞阀阀座的加工夹具，其中，所述斜面包括斜平面，所述斜平面被配置为与所述第一阀座的所述弧面远离所述凸台部的一侧边缘处的切线相平行。
  6. 根据权利要求4所述的旋塞阀阀座的加工夹具，其中，所述斜面包括斜曲面，所述斜曲面的曲率与所述第一阀座的所述弧面的曲率相同。
  7. 根据权利要求3至6中任一项所述的旋塞阀阀座的加工夹具，其中，所述第二固定组件的构造与所述第一固定组件的构造相同。
  8. 根据权利要求7所述的旋塞阀阀座的加工夹具，其中，所述加工夹具包括位于所述第一支撑板上的多个第一固定组件，所述多个第一固定组件围绕所述第一安装孔的周向均匀布置；
    所述加工夹具包括位于所述第二支撑板上的多个第二固定组件，所述多个第二固定组件围绕所述第二安装孔的周向均匀布置。
  9. 根据权利要求1所述的旋塞阀阀座的加工夹具，其中，所述第一安装孔的中心轴线与所述第二安装孔的中心轴线重合。
  10. 根据权利要求9所述的旋塞阀阀座的加工夹具，其中，
    所述第一安装孔具有第一刻线，所述第一刻线设置在所述第一安装孔的壁面上、且延伸方向与所述第一安装孔的所述中心轴线平行；
    所述第二安装孔具有第二刻线，所述第二刻线设置在所述第二安装孔的壁面上、且延伸方向与所述第二安装孔的所述中心轴线平行；
    其中，所述第一刻线被配置为与所述第一阀座上的阀座刻线对齐，所述第二刻线被配置为与所述第二阀座上的阀座刻线对齐，以使得所述第一阀座的所述凹陷部与所述第二阀座的所述凹陷部相正对。
  11. 根据权利要求10所述的旋塞阀阀座的加工夹具，还包括：
    第一凸块，设置在所述第一支撑板背离所述加工空间的一侧，且所述第一安装孔穿过所述第一凸块，所述第一刻线还位于所述第一凸块的壁面上；
    第二凸块，设置在所述第二支撑板背离所述加工空间的一侧，且所述第二安装孔穿过所述第二凸块，所述第二刻线还位于所述第二凸块的壁面上。
  12. 根据权利要求1所述的旋塞阀阀座的加工夹具，其中，所述第一支撑板和/或所述第二支撑板通过紧固件与所述底座可拆卸连接。
  13. 根据权利要求12所述的旋塞阀阀座的加工夹具，其中，所述紧固件包括螺纹连接件；
    所述底座包括第一螺纹孔，所述第一支撑板或所述第二支撑板包括第二螺纹孔；
    其中，所述螺纹连接件穿过所述第一螺纹孔和所述第二螺纹孔，以使所述底座与所述第一支撑板连接、或使所述底座与所述第二支撑板连接。
  14. 根据权利要求13所述的旋塞阀阀座的加工夹具，其中，所述紧固件 还包括定位插销；
    所述底座包括第一插孔，所述第一支撑板或所述第二支撑板包括第二插孔；
    其中，所述定位插销穿过所述第一插孔和所述第二插孔，以使所述第一螺纹孔和所述第二螺纹孔。
  15. 根据权利要求14所述的旋塞阀阀座的加工夹具，其中，所述第一插孔和所述第二插孔均为盲孔，所述定位插销的一端插入所述第一插孔中、另一端插入所述第二插孔中。
  16. 根据权利要求14所述的旋塞阀阀座的加工夹具，其中，所述定位插销的平行于所述底座所在平面的横截面为多边形横截面。
  17. 根据权利要求9所述的旋塞阀阀座的加工夹具，其中，所述底座包括过孔，所述过孔贯穿所述底座并与所述加工空间连通，且所述过孔的中心轴线与所述第一安装孔或所述第二安装孔的中心轴线垂直。
  18. 一种旋塞阀阀座的加工方法，应用根据所述权利要求1至17任一项所述的旋塞阀阀座的加工夹具，其中，所述加工方法包括：
    准备所述阀座的坯料；
    对所述坯料进行加工，以使所述坯料形成所述凸台部和所述凹陷部；
    对形成所述凸台部和所述凹陷部的两个所述坯料进行同步加工，以使两个所述坯料形成加工精度相同的两个阀座。
  19. 根据权利要求18所述的旋塞阀阀座的加工方法，其中，对形成所述凸台部和所述凹陷部的两个所述坯料进行同步加工，以使所述坯料形成加工精度相同的两个阀座，包括：
    在形成所述凸台部和所述凹陷部的两个所述坯料上进行划线以形成阀座刻线；
    将划线后的两个所述坯料固定在所述加工夹具上，并使得两个所述坯料安装在所述加工空间内，且两个所述坯料的所述凹陷部相对设置；
    使砂轮进入到固定在所述加工夹具上的两个所述坯料的所述凹陷部之间，并对两个所述坯料的所述凹陷部同时进行研磨，以形成加工精度相同的两个所述阀座。
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CN209919563U (zh) * 2019-04-24 2020-01-10 湖北赛利恩特石油科技有限公司 旋塞阀密封弧片磨内圆工装及其组成的打磨机床
CN114670085A (zh) * 2022-03-07 2022-06-28 烟台杰瑞石油装备技术有限公司 一种旋塞阀阀座的加工夹具及加工方法

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