CN108098387A - Ancillary equipment is processed suitable for various sizes of petroleum pipeline - Google Patents

Ancillary equipment is processed suitable for various sizes of petroleum pipeline Download PDF

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Publication number
CN108098387A
CN108098387A CN201711365814.5A CN201711365814A CN108098387A CN 108098387 A CN108098387 A CN 108098387A CN 201711365814 A CN201711365814 A CN 201711365814A CN 108098387 A CN108098387 A CN 108098387A
Authority
CN
China
Prior art keywords
block
movable block
additionally provided
sliding
column
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.)
Withdrawn
Application number
CN201711365814.5A
Other languages
Chinese (zh)
Inventor
贺昶明
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Chengdu Damo Petroleum Technology Co Ltd
Original Assignee
Chengdu Damo Petroleum Technology Co Ltd
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.)
Filing date
Publication date
Application filed by Chengdu Damo Petroleum Technology Co Ltd filed Critical Chengdu Damo Petroleum Technology Co Ltd
Priority to CN201711365814.5A priority Critical patent/CN108098387A/en
Publication of CN108098387A publication Critical patent/CN108098387A/en
Withdrawn legal-status Critical Current

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23QDETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
    • B23Q3/00Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine
    • B23Q3/02Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine for mounting on a work-table, tool-slide, or analogous part
    • B23Q3/06Work-clamping means
    • B23Q3/062Work-clamping means adapted for holding workpieces having a special form or being made from a special material
    • B23Q3/064Work-clamping means adapted for holding workpieces having a special form or being made from a special material for holding elongated workpieces, e.g. pipes, bars or profiles
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B25HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25BTOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
    • B25B11/00Work holders not covered by any preceding group in the subclass, e.g. magnetic work holders, vacuum work holders

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Supports For Pipes And Cables (AREA)

Abstract

The invention discloses process ancillary equipment suitable for various sizes of petroleum pipeline,Including pedestal,The top of the pedestal is equipped with the first sliding groove,First sliding block there are two being set in the first sliding groove,Grip block is equipped at the top of first sliding block,Movable block is additionally provided at the top of pedestal,Movable block can move on pedestal along horizontal direction,The top of movable block is equipped with groove,Column is equipped in groove,Rotation axis is additionally provided on movable block,Two the 3rd retainer rings are additionally provided in rotation axis,3rd retainer ring is by screw thread with rotating axis connection,Two the 3rd retainer rings are located at the both sides of movable block respectively,Column is equipped with movable block,Movable block is sleeved on column,And movable block can be moved along the axis direction of column,The side of movable block is set there are two cross bar,Cross bar is divided into positioned at the axis both sides of movable block,Transverse slat is additionally provided between two cross bars,Through hole is additionally provided at the top of transverse slat,The both sides of through hole are additionally provided with clamping element.

Description

Ancillary equipment is processed suitable for various sizes of petroleum pipeline
Technical field
The present invention relates to petroleum technology fields, and in particular to processes ancillary equipment suitable for various sizes of petroleum pipeline.
Background technology
Oil, also referred to as crude oil are a kind of sticky, dark brown (sometimes a little green) liquid.Upper crustal is partly There is petroleum storage in area.The property of oil is different due to the place of production, and range of viscosities is very wide, and solidification point difference is very big (30-60 degrees Celsius), boiling Point range for room temperature to 500 degrees Celsius or more, dissolve in a variety of organic solvents, it is not soluble in water, but can with water formed emulsion.No The composition and appearance for the oil for crossing different oil fields can be distinguished very big.Oil is mainly used as fuel oil and gasoline, fuel oil and One of current primary energy most important in the world of gasoline composition.Oil is also many chemical industries such as solvent, chemical fertilizer, kills The raw material of worm agent and plastics etc..During the long history constantly to develop in the earth, there is " special " period, such as the Paleozoic Era and In Mesozoic Era, after substantial amounts of plant and animal death, the organic substance for forming its body constantly decomposes, and is precipitated with silt or carbonic acid matter The material mixings such as object form sedimentary.Since deposit constantly accumulates thickening, temperature and pressure is caused to rise, with this mistake The continuous progress of journey, sedimentary becomes sedimentary rock, and then forms sedimentary basin, this just provides basic ground for the generation of oil Matter environment.The ingredient of crude oil mainly has:Oily (this is its main component), colloid (a kind of semi-solid material of viscosity), pitch Matter (crineous or black brittle solid substance), carbonaceous (a kind of nonhydrocarbon).Oil is by mixing based on hydrocarbon It forms, there is special odor, coloured flammable oily liquid, natural gas is each based on gaseous hydrocarbon Kind gas composition, there is special odor, colourless inflammability mixed gas.
Petroleum pipeline is the important equipment of transporting petroleum, traditional when being processed in the elbow port to petroleum pipeline Method is to be pinned with hand or fixed channel bend using fixture, but is fixed with hand insecure, is managed during processing Road elbow easily rocks, and then function is more single for existing fixture, and matched channel bend can only be fixed, no It disclosure satisfy that and the channel bend of different angle is clamped.
The content of the invention
The technical problems to be solved by the invention are to overcome deficiency of the prior art, and it is an object of the present invention to provide suitable for difference The petroleum pipeline processing ancillary equipment of size, can be fixed the petroleum pipeline elbow of different angle, when ensureing to process not It can rock.
The present invention is achieved through the following technical solutions:
Ancillary equipment is processed suitable for various sizes of petroleum pipeline, including pedestal, the top of the pedestal is equipped with first Sliding slot is set in the first sliding groove there are two the first sliding block, and the first sliding block can move in the first sliding groove, and described first slides Grip block is equipped at the top of block, movable block is additionally provided at the top of the pedestal, movable block can be on pedestal along level side To movement, the top of the movable block is equipped with groove, and column is equipped in groove, rotation axis is additionally provided on the movable block, is rotated Axis level is interspersed on movable block, and rotation axis is also interspersed on column, and rotation axis can rotate on movable block, and stand Column can follow rotation axis to be rotated in groove, and two the 3rd retainer rings are additionally provided in the rotation axis, and the 3rd retainer ring is logical Screw thread is crossed with rotating axis connection, and two the 3rd retainer rings are located at the both sides of movable block respectively, and two the 3rd retainer rings can Rotation axis is fixed on movable block, column is equipped with movable block, and movable block is sleeved on column, and movable block can be along vertical The axis direction movement of column, the side of the movable block are set there are two cross bar, and cross bar is divided into positioned at the axis both sides of movable block, and two Transverse slat is additionally provided between a cross bar, transverse slat can move on cross bar along horizontal direction, be additionally provided at the top of the transverse slat logical Hole, the both sides of through hole are additionally provided with clamping element.
Further, two fixed stations are additionally provided at the top of the pedestal, fixed station is located at the outside of grip block respectively, Gu Determine to be equipped with push rod on platform, push rod is connected by screw thread with fixed station, rotating push rod, and push rod can promote grip block towards pedestal Central position movement.
Further, it is equipped with arc groove on the clamping face of the grip block.
Further, two the first retainer rings are additionally provided on the column, the first retainer ring is connected by screw thread and column It connects, and movable block is located between two the first retainer rings, and movable block can be fixed on column by two the first retainer rings.
Further, several location holes are evenly provided on the cross bar, the transverse slat is towards on the side wall in cross bar direction Equipped with link block, cross bar level is interspersed in link block, and link block is equipped with locating rod, and locating rod is connected by screw thread and link block It connects, rotational positioning bar, locating rod can be moved in location hole, and cross bar is fixed in link block by locating rod.
Further, the clamping element includes boss and supporting rod, and boss is located at the side of through hole, supporting rod and boss Pass through screw thread horizontal connection.
Further, the axis of the second sliding slot, the axis of the first sliding groove and the second sliding slot is additionally provided at the top of the pedestal Vertically, being additionally provided in the second sliding slot can move with matched second sliding block of the second sliding slot, the second sliding block in the second sliding slot, institute The top for stating the second sliding slot is also connected with movable block.
Further, fixed block is additionally provided at the top of the pedestal, fixed block is equipped with adjusting rod, and adjusting rod is horizontal interspersed On fixed block, and adjusting rod is connected with movable block, and adjusting rod can drive the second sliding block of movable block in the second sliding slot Interior movement.
Further, two the second retainer rings are additionally provided on the adjusting rod, the second retainer ring is by screw thread with adjusting Bar connects, and two the second retainer rings are located at the both sides of fixed block respectively, and two the second retainer rings can fix adjusting rod On fixed block.
Compared with prior art, the present invention it has the following advantages and advantages:
1st, the present invention is suitable for various sizes of petroleum pipeline processing ancillary equipment, is processed to petroleum pipeline elbow When, one end of elbow is fixed using two grip blocks, the clamping element on transverse slat is recycled to fix the other end of elbow, is protected Card elbow will not shake during processing;
2nd, the present invention is suitable for various sizes of petroleum pipeline processing ancillary equipment, curved in the petroleum pipeline to different angle When head is processed fixed, unscrew the 3rd retainer ring in rotation axis, according to elbow bending angle to be processed come adjusting post Angle between pedestal meets the fixation of the elbow to differently curved angle;
3rd, the present invention is suitable for various sizes of petroleum pipeline processing ancillary equipment, and transverse slat can either move in the vertical direction It is dynamic, but also can move in the horizontal direction, while movable block can move on pedestal, suitable for the elbow to different length Fixation.
Description of the drawings
Attached drawing described herein is used for providing further understanding the embodiment of the present invention, forms one of the application Point, do not form the restriction to the embodiment of the present invention.In the accompanying drawings:
Fig. 1 is the front view of the present invention;
Fig. 2 is the side view of the present invention;
Fig. 3 is the top view of transverse slat of the present invention;
Fig. 4 is the top view of movable block of the present invention;
Fig. 5 is the structure diagram of movable block of the present invention;
Fig. 6 is the top view of pedestal of the present invention.
Mark and corresponding parts title in attached drawing:
1- pedestals, 2- columns, 4- the first sliding grooves, 5- push rods, 6- movable blocks, the first retainer rings of 7-, 8- location holes, 9- are horizontal Bar, 10- boss, 11- link blocks, 12- locating rods, 13- transverse slats, 14- grip blocks, 15- fixed stations, the first sliding blocks of 16-, 17- arcs Shape slot, 18- supporting rods, 19- through holes, 20- adjusting rods, the second retainer rings of 21-, 22- fixed blocks, 23- movable blocks, 24- second are slided Motion block, the 3rd retainer rings of 25-, 26- rotation axis, 27- grooves, the second sliding slots of 28-.
Specific embodiment
Understand to make the object, technical solutions and advantages of the present invention clearer, with reference to embodiment and attached drawing, to this Invention is described in further detail, and exemplary embodiment of the invention and its explanation are only used for explaining the present invention, do not make For limitation of the invention.
Embodiment
As shown in Figures 1 to 4, the present invention is suitable for various sizes of petroleum pipeline and processes ancillary equipment, including pedestal 1, The pedestal 1 is rectangular configuration, and the top of pedestal 1 is equipped with the first sliding groove 4, and the first sliding groove 4 is located at the central position of pedestal 1, Being equipped in the first sliding groove 4 can slide with matched first sliding block 16 of the first sliding groove, the first sliding block 16 in the first sliding groove 4, institute The top for stating the first sliding block 16 is additionally provided with to clamp the grip block 14 of petroleum pipeline elbow, when the first sliding block 16 is in the first sliding groove When being moved in 4, grip block 14 can follow the first sliding block 16 to move together, full to change the spacing between two grip blocks 14 Clamping of the foot to the elbow of different-diameter is equipped with arc groove 17, the arc groove 17 of setting on the clamping face of the grip block 14 The contact area of grip block 14 and elbow can be increased, further improve the clamping force to elbow, the top of the pedestal 1 Two fixed stations 15 are additionally provided with, fixed station 15 is located at the axis both sides of pedestal 1 respectively, and fixed station 15 is respectively positioned on grip block 14 Outside, be equipped with push rod 5 on the fixed station 15, push rod 5 is by screw thread and 15 horizontal connection of fixed station, rotating push rod 5, Push rod 5 can move in fixed station 15 along horizontal direction, and push rod 5 can promote grip block 14 towards the center of pedestal It is moved at position, so as to which elbow be fixed;The top of the pedestal 1 also the second sliding slot 28, the axis and first of the second sliding slot 28 The axis of sliding slot 4 is vertical, is additionally provided in second sliding slot 28 and is slided with 28 matched the second sliding shoe 24 of the second sliding slot, second Block 24 can move in the second sliding slot 28, and the top of the second sliding shoe 24 is additionally provided with movable block 23, and movable block 23 will be with It the second sliding shoe 24 to move together, the top of the movable block 23 is additionally provided with groove 27, and column 2 is equipped in groove 27, described Rotation axis 26 is additionally provided on movable block 23,26 level of rotation axis is interspersed in movable block 23, and rotation axis 26 be also interspersed in it is vertical On column 2, rotation axis 26 can rotate on movable block 23, and column 2 can follow rotation axis 26 to turn together in groove 27 It is dynamic, two the 3rd retainer rings 25 are additionally provided in the rotation axis 26, the 3rd retainer ring 25 is connected by screw thread with rotation axis 26, And two the 3rd retainer rings 25 are located at the both sides of movable block 23 respectively, tighten two the 3rd retainer rings 25, the 3rd retainer ring 25 It can be pressed on the side wall of movable block 23, so that rotation axis 26 is fixed on movable block 23, the top of the pedestal 1 is also Equipped with fixed block 22, fixed block 22 is equipped with adjusting rod 20, and adjusting rod 20 is adjusted by screw thread and 22 horizontal connection of fixed block One end of pole 20 is connected with movable block 23, and adjusting rod 20 can drive the second sliding shoe 24 on movable block 23 in the second sliding slot It is moved in 28, two the second retainer rings 21 is additionally provided on the adjusting rod 20, the second retainer ring 21 passes through screw thread and adjusting rod 20 connections, and two the second retainer rings 21 are located at the both sides of fixed block 22 respectively, and two the second retainer rings 21 can will be adjusted Bar 20 is fixed on fixed block 22;The column 2 is equipped with 6 and first retainer ring 7 of movable block, and movable block 6 is sleeved on column 2, And movable block 6 can be moved along the axis direction of column 2, so as to change the height of movable block 6, first retainer ring 7 It is connected by screw thread with column 2, and movable block 6 is located between two the first retainer rings 7, the first retainer ring 7 of rotation, first Movable block 6 can be fixed on column 2 by retainer ring 7, and the side of the movable block 6 is additionally provided with cross bar 9, and cross bar 9 is located at respectively The axis both sides of movable block 6 are additionally provided with transverse slat 13 between two cross bars 9, and the both sides of transverse slat 13 are equipped with link block 11, cross bar 9 It is interspersed in link block 11, and cross bar 9 can move in link block 11, and several positioning are evenly provided on the cross bar 9 Hole 8, is additionally provided with locating rod 12 on link block 11, and locating rod 12 is by screw thread and 11 horizontal connection of link block, rotational positioning bar 12, Locating rod 12 can be moved in location hole 8, and cross bar 9 is fixed on link block 11 by locating rod 12, when need in the horizontal direction During mobile transverse slat 13, locating rod 12 is moved by rotational positioning bar 12 out of location hole 8, and transverse slat 13 just can be on cross bar 9 It is moved along horizontal direction, the central position of the transverse slat 13 is additionally provided with through hole 19, and the top of the transverse slat 13 is additionally provided with two A boss 10, boss 10 are located at the both sides of through hole 19, are equipped with supporting rod 18 on the boss 10, supporting rod 18 passes through spiral shell respectively Line and 10 horizontal connection of boss, rotate supporting rod 18, and supporting rod 18 can be moved along horizontal direction in boss 10, will placed Elbow in through hole 19 is fixed.
The present invention is in use, petroleum pipeline elbow one end to be processed is inserted into through hole 19, rotation supporting rod 18 so that Supporting rod 18 is fixed in through hole 19, then unscrews two the 3rd retainer rings 25 in rotation axis 26 so that column 2 can It rotates in the groove 27 of movable block 23, according to the bending angle of elbow to be processed come the angle of inclination of adjusting post 2, ensures curved The other end of head can be clamped by two grip blocks 14, after the angle of inclination adjusting properly of column 2, tighten the 3rd retainer ring 25 so that column 2 is fixed in groove 27, rotating push rod 5, and push rod 5 promotes grip block 14, and the other end of elbow is fixed;Together When during use, the position of transverse slat 13 and movable block 23 is adjusted according to elbow length to be processed, is met to difference The fixation of the elbow of length.
Above-described specific embodiment has carried out the purpose of the present invention, technical solution and advantageous effect further It is described in detail, it should be understood that the foregoing is merely the specific embodiments of the present invention, is not intended to limit the present invention Protection domain, within the spirit and principles of the invention, any modification, equivalent substitution, improvement and etc. done should all include Within protection scope of the present invention.

Claims (9)

1. process ancillary equipment suitable for various sizes of petroleum pipeline, which is characterized in that including pedestal (1), the pedestal (1) Top be equipped with the first sliding groove (4), set that there are two the first sliding block (16), the first sliding block (16) equal energy in the first sliding groove (4) It is enough to be moved in the first sliding groove (4), grip block (14), the top of the pedestal (1) are equipped at the top of first sliding block (16) Portion is additionally provided with movable block (23), and movable block (23) can move on pedestal (1) along horizontal direction, the movable block (23) Top is equipped with groove (27), and column (2) is equipped in groove (27), rotation axis (26) is additionally provided on the movable block (23), is rotated Axis (26) level is interspersed on movable block (23), and rotation axis (26) is also interspersed on column (2), and rotation axis (26) can be Movable block rotates on (23), and column (2) can follow rotation axis (26) to be rotated in groove (27), the rotation axis (26) On be additionally provided with two the 3rd retainer rings (25), the 3rd retainer ring (25) is connected by screw thread with rotation axis (26), and two 3rd retainer ring (25) is located at the both sides of movable block (23) respectively, and two the 3rd retainer rings (25) can be fixed by rotation axis (26) On movable block (23), the column (2) is equipped with movable block (6), and movable block (6) is sleeved on column (2), and movable block (6) can be moved along the axis direction of column (2), the side of the movable block (6) is set there are two cross bar (9), and cross bar (9) divides To be located at the axis both sides of movable block (6), transverse slat (13) is additionally provided between two cross bars (9), transverse slat (13) can be in cross bar (9) On moved along horizontal direction, through hole (19) is additionally provided at the top of the transverse slat (13), the both sides of through hole (19) are additionally provided with clamping Element.
2. according to claim 1 be suitable for various sizes of petroleum pipeline processing ancillary equipment, which is characterized in that described Two fixed stations (15) are additionally provided at the top of pedestal (1), fixed station (15) is located at the outside of grip block (14), fixed station respectively (15) push rod (5) is equipped on, push rod (5) is connected by screw thread with fixed station (15), and rotating push rod (5), push rod (5) can push away The central position of dynamic grip block (14) towards pedestal (1) moves.
3. according to claim 1 be suitable for various sizes of petroleum pipeline processing ancillary equipment, which is characterized in that described Arc groove (17) is equipped on the clamping face of grip block (14).
4. according to claim 1 be suitable for various sizes of petroleum pipeline processing ancillary equipment, which is characterized in that described Two the first retainer rings (7) are additionally provided on column (2), the first retainer ring (7) is connected by screw thread with column (2), and is moved Motion block (6) is located between two the first retainer rings (7), and movable block (6) can be fixed on column by two the first retainer rings (7) (2) on.
5. according to claim 1 be suitable for various sizes of petroleum pipeline processing ancillary equipment, which is characterized in that described Several location holes (8) are evenly provided on cross bar (9), the side wall in the transverse slat (13) towards cross bar (9) direction is equipped with connection Block (11), cross bar (9) level are interspersed in link block (11), and link block (11) is equipped with locating rod (12), and locating rod (12) is logical It crosses screw thread to be connected with link block (11), rotational positioning bar (12), locating rod (12) can be moved in location hole (8), locating rod (12) cross bar (9) is fixed in link block (11).
6. according to claim 1 be suitable for various sizes of petroleum pipeline processing ancillary equipment, which is characterized in that described Clamping element includes boss (10) and supporting rod (18), and boss (10) is located at the side of through hole (19), and supporting rod (18) passes through spiral shell Line and boss (10) horizontal connection.
7. according to claim 1 be suitable for various sizes of petroleum pipeline processing ancillary equipment, which is characterized in that described The second sliding slot (28) is additionally provided at the top of pedestal (1), the axis of the first sliding groove (4) is vertical with the axis of the second sliding slot (28), the The second sliding block (24) matched with the second sliding slot (28) is additionally provided in two sliding slots (28), the second sliding block (24) can be in the second sliding slot (28) moved in, the top of second sliding slot (28) is also connected with movable block (23).
8. according to claim 7 be suitable for various sizes of petroleum pipeline processing ancillary equipment, which is characterized in that described Fixed block (22) is additionally provided at the top of pedestal (1), fixed block (22) is equipped with adjusting rod (20), and adjusting rod (20) level is interspersed in On fixed block (22), and adjusting rod (20) is connected with movable block (23), and adjusting rod (20) can drive the of movable block (23) Two sliding blocks (24) are in the interior movement of the second sliding slot (28).
9. according to claim 8 be suitable for various sizes of petroleum pipeline processing ancillary equipment, which is characterized in that described Two the second retainer rings (21) are additionally provided on adjusting rod (20), the second retainer ring (21) is connected by screw thread and adjusting rod (20) It connects, and two the second retainer rings (21) are located at the both sides of fixed block (22) respectively, and two the second retainer rings (21) can will adjust Pole (20) is fixed on fixed block (22).
CN201711365814.5A 2017-12-18 2017-12-18 Ancillary equipment is processed suitable for various sizes of petroleum pipeline Withdrawn CN108098387A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201711365814.5A CN108098387A (en) 2017-12-18 2017-12-18 Ancillary equipment is processed suitable for various sizes of petroleum pipeline

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201711365814.5A CN108098387A (en) 2017-12-18 2017-12-18 Ancillary equipment is processed suitable for various sizes of petroleum pipeline

Publications (1)

Publication Number Publication Date
CN108098387A true CN108098387A (en) 2018-06-01

Family

ID=62210868

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201711365814.5A Withdrawn CN108098387A (en) 2017-12-18 2017-12-18 Ancillary equipment is processed suitable for various sizes of petroleum pipeline

Country Status (1)

Country Link
CN (1) CN108098387A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110666540A (en) * 2019-10-22 2020-01-10 东风精密铸造安徽有限公司 Rotary machining clamp assembly
CN110961950A (en) * 2019-12-23 2020-04-07 福建恒杰塑业新材料有限公司 Obtuse angle return bend clamping device

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110666540A (en) * 2019-10-22 2020-01-10 东风精密铸造安徽有限公司 Rotary machining clamp assembly
CN110666540B (en) * 2019-10-22 2021-08-24 东风精密铸造有限公司 Rotary machining clamp assembly
CN110961950A (en) * 2019-12-23 2020-04-07 福建恒杰塑业新材料有限公司 Obtuse angle return bend clamping device

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Application publication date: 20180601