CN209578897U - A kind of positioning device for processing steam turbine inner gland segmental arc - Google Patents

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

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Publication number
CN209578897U
CN209578897U CN201920450355.9U CN201920450355U CN209578897U CN 209578897 U CN209578897 U CN 209578897U CN 201920450355 U CN201920450355 U CN 201920450355U CN 209578897 U CN209578897 U CN 209578897U
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China
Prior art keywords
positioning
pressing plate
segmental arc
workbench
hold
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Active
Application number
CN201920450355.9U
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Chinese (zh)
Inventor
马铭阳
黄揆
郑柏强
张树纲
刘雷
刘尚
郭凤桐
孙兆亮
董礼涛
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Harbin Turbine Co Ltd
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Harbin Turbine Co Ltd
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Priority to CN201920450355.9U priority Critical patent/CN209578897U/en
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Abstract

A kind of positioning device 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 utility model is used for the positioning of packing segmental arc.

Description

A kind of positioning device for processing steam turbine inner gland segmental arc
Technical field
The utility model relates to turbine components, more particularly to a kind of positioning dress for processing steam turbine inner gland segmental arc It sets.
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.
Utility model content
The utility model technical issues that need to address are: the positioning device of existing packing segmental arc is unable to satisfy multiple types The processing and positioning of the packing segmental arc of type, and then a kind of positioning device for processing steam turbine inner gland segmental arc is provided.
The utility model 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 In 1-2, 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 beneficial effects of the utility model 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
Below with reference to the accompanying drawings and specific embodiments further illustrating the technical solution of the utility model includes:
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.
Using the localization method of this positioning device processing steam turbine inner gland segmental arc, specific positioning step is 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 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, in the lower section of packing segmental arc Arc spacer 6 is placed to be installed to two positioning pins 3 so that the lower surface of packing segmental arc is close to the upper surface of arc spacer 6 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, one end of pressing plate 2 is pressed in vapour It seals on segmental arc upper surface, the other end lower surface shell tool 4 of pressing plate 2, so that pressing plate 2 is in a horizontal position, by hold-down bolt 5 In nut be tightened on stud, fix packing segmental arc;Guarantee the vibration of packing segmental arc when processing longer packing segmental arc 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, it checks the gap between packing segmental arc and arc spacer, guarantees to be not inserted into packing with a thickness of the clearance gauge of 0.03mm Between segmental arc and arc spacer.
0.03mm or more can be improved in the clamping precision of the present apparatus.

Claims (4)

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.
CN201920450355.9U 2019-04-03 2019-04-03 A kind of positioning device for processing steam turbine inner gland segmental arc Active CN209578897U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201920450355.9U CN209578897U (en) 2019-04-03 2019-04-03 A kind of positioning device for processing steam turbine inner gland segmental arc

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201920450355.9U CN209578897U (en) 2019-04-03 2019-04-03 A kind of positioning device for processing steam turbine inner gland segmental arc

Publications (1)

Publication Number Publication Date
CN209578897U true CN209578897U (en) 2019-11-05

Family

ID=68375402

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201920450355.9U Active CN209578897U (en) 2019-04-03 2019-04-03 A kind of positioning device for processing steam turbine inner gland segmental arc

Country Status (1)

Country Link
CN (1) CN209578897U (en)

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