CN109834481A - A kind of positioning device and localization method for processing steam turbine inner gland segmental arc - Google Patents

A kind of positioning device and localization method for processing steam turbine inner gland segmental arc Download PDF

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Publication number
CN109834481A
CN109834481A CN201910266698.4A CN201910266698A CN109834481A CN 109834481 A CN109834481 A CN 109834481A CN 201910266698 A CN201910266698 A CN 201910266698A CN 109834481 A CN109834481 A CN 109834481A
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CN
China
Prior art keywords
segmental arc
positioning
packing segmental
pressing plate
arc
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.)
Pending
Application number
CN201910266698.4A
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Chinese (zh)
Inventor
马铭阳
黄揆
孙海博
张树纲
刘雷
张海军
李明
郭凤桐
刘尚
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Harbin Turbine Co Ltd
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Harbin Turbine Co Ltd
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Filing date
Publication date
Application filed by Harbin Turbine Co Ltd filed Critical Harbin Turbine Co Ltd
Priority to CN201910266698.4A priority Critical patent/CN109834481A/en
Publication of CN109834481A publication Critical patent/CN109834481A/en
Pending legal-status Critical Current

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Abstract

A kind of positioning device and localization method for processing steam turbine inner gland segmental arc, is related to turbine component.The positioning device of existing packing segmental arc is unable to satisfy the processing and positioning of a plurality of types of packing segmental arcs.Positioning device includes workbench, muti-piece pressing plate, multiple positioning pins, multiple pads and multiple hold-down bolts, multiple bolts hole and multiple location holes are provided on the table top of workbench, multiple bolts hole and multiple location holes are evenly distributed on the table top of entire workbench, a strip sliding slot is provided on pressing plate along the length direction of pressing plate, pressing plate is fixedly mounted on the table top of workbench by hold-down bolt, positioning pin is inserted into location hole, and the bottom end of pressing plate is arranged in gasket.The present invention is used for the positioning of packing segmental arc.

Description

A kind of positioning device and localization method for processing steam turbine inner gland segmental arc
Technical field
The present invention relates to turbine component, more particularly to a kind of positioning device for processing steam turbine inner gland segmental arc and fixed Position method.
Background technique
Steam-turbine unit inner workings run at high speed, after the survey of general assembly unit is through-flow, it usually needs to through-flow Size carries out accurate calculate and repairs with high-precision, and according to the passable size data calculated, a large amount of packing segmental arc of repair is right The radial and axial size of packing segmental arc is processed, and repair packing segmental arc is generally processed using Numerical-control Milling Machines, this makes The packing segmental arc of processing different model just needs the corresponding numerical control program of temporary establishment, and is equipped with the corresponding tooling folder of installation Tool, elapsed time is too long, reduces the efficiency of general assembly, and the type of the packing segmental arc of current various unit is different from, quantity Especially big, the positioning device of existing packing segmental arc is unable to satisfy the processing of a plurality of types of packing segmental arcs, how efficient quick A plurality of types of packing segmental arcs of repair become processing problem.
Summary of the invention
The technical problem to be solved in the invention is: the positioning device of existing packing segmental arc is unable to satisfy a plurality of types of The processing and positioning of packing segmental arc, and then a kind of positioning device and localization method for processing steam turbine inner gland segmental arc is provided.
The present invention to solve above-mentioned technical problem the technical solution adopted is that:
The positioning device includes workbench 1, muti-piece pressing plate 2, multiple positioning pins 3, multiple pads 4 and multiple compression spiral shells Bolt 5, is provided with multiple bolt hole 1-1 and multiple location hole 1-2 on the table top of the workbench 1, multiple bolt hole 1-1 and multiple Location hole 1-2 is evenly distributed on the table top of entire workbench 1, is provided on pressing plate 2 along the length direction of pressing plate 2 one long Bar shaped sliding slot 2-1, pressing plate 2 are fixedly mounted on the table top of workbench 1 by hold-down bolt 5, and positioning pin 3 is inserted into location hole 1- In 2, the bottom end of pressing plate 2 is arranged in gasket 4.
Further, it is provided with threaded post 3-1 on one end end face of the positioning pin 3, threaded post 3-1 spinning is positioning In the 1-2 of hole, the axis of threaded post 3-1 is overlapped or parallel with the axis of positioning pin 3.
Further, the positioning device further includes arc spacer 6, and arc spacer 6 is placed on the table top of workbench 1.
Further, the positioning pin 3 is 2, and hold-down bolt 5 is 3.
The localization method of the processing steam turbine inner gland segmental arc, specific positioning step are as follows:
Workbench 1 is fixedly installed on milling machine by step 1, mounting and positioning device, according to packing segmental arc to be processed Length select 3 bolt hole 1-1 so that 3 bolt hole 1-1 be respectively at two ends of packing segmental arc side and Stud in hold-down bolt 5 is pierced by by the bolt hole 1-1 from the bottom of workbench 1 by the side at intermediate position;
Step 2, be loaded packing segmental arc: packing segmental arc being placed on the table top of workbench 1, two positioning pins 3 are installed Into location hole 1-2, the position of packing segmental arc is adjusted, so that the outboard end of packing segmental arc or inner end and two positioning pins 3 Arcwall face be close to, be socketed a pressing plate 2 respectively on the stud in 3 hold-down bolts 5, one end of pressing plate 2 is pressed in On packing segmental arc upper surface, the other end lower surface shell tool 4 of pressing plate 2 will compress spiral shell so that pressing plate 2 is in a horizontal position Nut in bolt 5 is tightened on stud, fixes packing segmental arc;
Step 3 checks whether being loaded for packing segmental arc be qualified: checking outboard end or the inside of packing segmental arc with clearance gauge Gap between end and two positioning pins 3 guarantees to be not inserted into packing segmental arc and positioning pin 3 with a thickness of the clearance gauge of 0.03mm Between.
Further, in the step two, arc spacer 6 is placed in the lower section of packing segmental arc, so that packing segmental arc It is close to the upper surface of arc spacer 6 lower surface.
Further, in the step three, check the gap between packing segmental arc and arc spacer, guarantee with a thickness of The clearance gauge of 0.03mm is not inserted between packing segmental arc and arc spacer.
The beneficial effects of the present invention are:
1, the present apparatus can adjust the position of hold-down bolt and pressing plate according to the packing radian of different Dimension Types, and adjust The position of whole positioning pin, structure is simple, manufacturing cost is low and versatile;
2,0.03mm or more can be improved in the clamping precision of the present apparatus.
Detailed description of the invention
Fig. 1 is the schematic diagram processing packing segmental arc inner end fashionable dress and clipping in positioning device;
Fig. 2 is the schematic diagram processing packing segmental arc outboard end fashionable dress and clipping in positioning device;
Fig. 3 is the structural schematic diagram of workbench;
Fig. 4 is the structural schematic diagram of arc spacer;
Fig. 5 is the structural schematic diagram of pressing plate;
Fig. 6 is the structural schematic diagram of positioning pin.
Specific embodiment
To further illustrate the technical scheme of the present invention below with reference to the accompanying drawings and specific embodiments:
Specific embodiment 1: as depicted in figs. 1 and 2, positioning device described in present embodiment includes workbench 1, more Block pressur plate 2, multiple positioning pins 3, multiple pads 4 and multiple hold-down bolts 5, as shown in figure 3, on the table top of the workbench 1 Multiple bolt hole 1-1 and multiple location hole 1-2 are provided with, multiple bolt hole 1-1 and multiple location hole 1-2 are evenly distributed on entire work On the table top for making platform 1, conducive to the packing segmental arc of different model positioning and be loaded,
As shown in figure 5, adjusting the position of pressing plate for convenience, one is provided on pressing plate 2 along the length direction of pressing plate 2 Strip sliding slot 2-1, pressing plate 2 are fixedly mounted on the table top of workbench 1 by hold-down bolt 5, and pressing plate 2 can be along strip The direction of sliding slot moves back and forth, and after adjusting good position, tightens nut, fixes packing segmental arc,
The bottom end of pressing plate 2 is arranged in gasket 4, for adjusting the height of pressing plate, in order to enable pressing plate can fasten packing segmental arc, Guarantee that pressing plate is in horizontality as far as possible,
Positioning pin 3 is inserted into location hole 1-2, adjusts positioning pin according to the packing segmental arc of different sizes and model Position.
According to the packing radian of different Dimension Types, the position of hold-down bolt and pressing plate is adjusted, and adjusts the position of positioning pin It sets, packing segmental arc is against on the outer arcuate face of two positioning pins, guarantee that the gap between packing segmental arc and positioning pin exists Within 0.03mm, packing segmental arc is compressed using pressing plate, to be processed again to the gland sealing gear of the side end face of packing segmental arc, benefit With CNC milling machine, program is regrouped, on the basis of this positioning device, need to only change the i.e. processable different model of several parameters Packing segmental arc, present apparatus structure is simple, manufacturing cost is low and versatile.
Specific embodiment 2: as shown in fig. 6, being provided with spiral shell on one end end face of positioning pin 3 described in present embodiment Line column 3-1, in location hole 1-2, the axis of threaded post 3-1 is overlapped or parallel threaded post 3-1 spinning with the axis of positioning pin 3.
Other compositions and connection type are same as the specific embodiment one.
Specific embodiment 3: as shown in figure 4, positioning device described in present embodiment further includes arc spacer 6, arc Gasket 6 is placed on the table top of workbench 1.It can use the height that arc spacer 6 adjusts packing segmental arc.
Other compositions and connection type are identical with embodiment two.
Specific embodiment 4: positioning pin 3 described in present embodiment is 2, hold-down bolt 5 is 3.
Other compositions and connection type are the same as the specific implementation mode 3.
Specific embodiment 5: the localization method of steam turbine inner gland segmental arc is processed described in present embodiment, it is specific fixed Steps are as follows for position:
Workbench 1 is fixedly installed on milling machine by step 1, mounting and positioning device, according to packing segmental arc to be processed Length selects suitable 3 bolt hole 1-1, so that 3 bolt hole 1-1 are respectively at two ends of packing segmental arc The side of side and intermediate position, the stud in hold-down bolt 5 is worn by the bolt hole 1-1 from the bottom of workbench 1 Out;
Step 2, be loaded packing segmental arc: packing segmental arc being placed on the table top of workbench 1, two positioning pins 3 are installed Into location hole 1-2, the position of packing segmental arc is adjusted, so that the outboard end of packing segmental arc or inner end and two positioning pins 3 Arcwall face be close to, be socketed a pressing plate 2 respectively on the stud in 3 hold-down bolts 5, one end of pressing plate 2 is pressed in On packing segmental arc upper surface, the other end lower surface shell tool 4 of pressing plate 2 will compress spiral shell so that pressing plate 2 is in a horizontal position Nut in bolt 5 is tightened on stud, fixes packing segmental arc;Guarantee the shake of packing segmental arc when processing longer packing segmental arc The dynamic influence to packing segmental arc machining accuracy is minimized;
Step 3 checks whether being loaded for packing segmental arc be qualified: checking outboard end or the inside of packing segmental arc with clearance gauge Gap between end and two positioning pins 3 guarantees to be not inserted into packing segmental arc and positioning pin 3 with a thickness of the clearance gauge of 0.03mm Between.
0.03mm or more can be improved in the clamping precision of the present apparatus
Specific embodiment 6: placing arc spacer in the lower section of packing segmental arc in step two described in present embodiment 6, so that the lower surface of packing segmental arc is close to the upper surface of arc spacer 6.
Other compositions and connection type are identical as specific embodiment five.
Specific embodiment 7: being checked between packing segmental arc and arc spacer in step three described in present embodiment Gap, guarantee are not inserted between packing segmental arc and arc spacer with a thickness of the clearance gauge of 0.03mm.
Other compositions and connection type are identical as specific embodiment six.

Claims (7)

1. a kind of positioning device for processing steam turbine inner gland segmental arc, it is characterised in that: the positioning device includes workbench (1), muti-piece pressing plate (2), multiple positioning pins (3), multiple pads (4) and multiple hold-down bolts (5), the workbench (1) Multiple bolts hole (1-1) and multiple location holes (1-2) are provided on table top, multiple bolts hole (1-1) and multiple location holes (1-2) are equal On the even table top for being distributed in entire workbench (1), a strip is provided on pressing plate (2) along the length direction of pressing plate (2) Sliding slot (2-1), pressing plate (2) are fixedly mounted on the table top of workbench (1) by hold-down bolt (5), and positioning pin (3) is inserted into fixed In position hole (1-2), gasket (4) is arranged in the bottom end of pressing plate (2).
2. positioning device according to claim 1, it is characterised in that: be arranged on one end end face of the positioning pin (3) Have threaded post (3-1), threaded post (3-1) spinning is in location hole (1-2), the axis of threaded post (3-1) and the axis of positioning pin (3) Line coincidence is parallel.
3. positioning device according to claim 2, it is characterised in that: the positioning device further includes arc spacer (6), Arc spacer (6) is placed on the table top of workbench (1).
4. positioning device according to claim 3, it is characterised in that: the positioning pin (3) is 2, hold-down bolt (5) It is 3.
5. utilizing the localization method of the processing packing segmental arc of positioning device described in claim 4, it is characterised in that: specific positioning Steps are as follows:
Workbench (1) is fixedly installed on milling machine by step 1, mounting and positioning device, according to the length of packing segmental arc to be processed Degree 3 bolts hole (1-1) of selection, so that 3 bolts hole (1-1) are respectively at the side of two ends of packing segmental arc With the side at intermediate position, the stud in hold-down bolt (5) is passed through into bottom of the bolt hole (1-1) from workbench (1) It is pierced by;
Step 2, be loaded packing segmental arc: packing segmental arc being placed on the table top of workbench (1), two positioning pins (3) are installed To in location hole (1-2), the position of packing segmental arc is adjusted, so that the outboard end of packing segmental arc or inner end and two positioning pins (3) arcwall face is close to, and is socketed a pressing plate (2) respectively on the stud in 3 hold-down bolts (5), pressing plate (2) One end is pressed on packing segmental arc upper surface, the other end lower surface shell tool (4) of pressing plate (2), so that pressing plate (2) is in level Nut in hold-down bolt (5) is tightened on stud, fixes packing segmental arc by position;
Step 3 checks whether being loaded for packing segmental arc qualified: with clearance gauge check packing segmental arc outboard end or inner end with Gap between two positioning pins (3) guarantees to be not inserted into packing segmental arc and positioning pin (3) with a thickness of the clearance gauge of 0.03mm Between.
6. the localization method of processing packing segmental arc according to claim 5, it is characterised in that: in the step two, Arc spacer (6) are placed in the lower section of packing segmental arc, so that the lower surface of packing segmental arc is close to the upper surface of arc spacer (6).
7. the localization method of processing packing segmental arc according to claim 6, it is characterised in that: in the step three, inspection The gap between packing segmental arc and arc spacer is looked into, guarantees to be not inserted into packing segmental arc and arc with a thickness of the clearance gauge of 0.03mm Between shape gasket.
CN201910266698.4A 2019-04-03 2019-04-03 A kind of positioning device and localization method for processing steam turbine inner gland segmental arc Pending CN109834481A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201910266698.4A CN109834481A (en) 2019-04-03 2019-04-03 A kind of positioning device and localization method for processing steam turbine inner gland segmental arc

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201910266698.4A CN109834481A (en) 2019-04-03 2019-04-03 A kind of positioning device and localization method for processing steam turbine inner gland segmental arc

Publications (1)

Publication Number Publication Date
CN109834481A true CN109834481A (en) 2019-06-04

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110508853A (en) * 2019-09-06 2019-11-29 哈尔滨汽轮机厂有限责任公司 The processing method of helical teeth in a kind of helical teeth steam seal ring
CN112475962A (en) * 2020-10-30 2021-03-12 江西昌河航空工业有限公司 Processing frock of compound rocking arm biparting piece

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110508853A (en) * 2019-09-06 2019-11-29 哈尔滨汽轮机厂有限责任公司 The processing method of helical teeth in a kind of helical teeth steam seal ring
CN112475962A (en) * 2020-10-30 2021-03-12 江西昌河航空工业有限公司 Processing frock of compound rocking arm biparting piece

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