CN102357798B - Inner cavity centering adjustment method and adjustment tool thereof - Google Patents
Inner cavity centering adjustment method and adjustment tool thereof Download PDFInfo
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- CN102357798B CN102357798B CN 201110272575 CN201110272575A CN102357798B CN 102357798 B CN102357798 B CN 102357798B CN 201110272575 CN201110272575 CN 201110272575 CN 201110272575 A CN201110272575 A CN 201110272575A CN 102357798 B CN102357798 B CN 102357798B
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- inner cavity
- centering
- eccentric block
- hole
- instrument
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Abstract
The invention relates to an inner cavity centering adjustment tool which comprises a knob (1), a positioning shaft (2) and an eccentric block (3), wherein the eccentric block (3) is rotatably mounted in an inner hole of the positioning shaft (2); one end of the eccentric block (3) is fixedly connected with the knob (1), and the other end of the eccentric block (3) extends out of the positioning shaft (2); and the eccentric block (3) extending out of the positioning shaft (2) is an asymmetric revolution body which only has one maximum-radius part, wherein the clearance between the maximum radius b and the narrow side of a valve bush waist-shaped hole (4) is 1/3-1/5 of the required symmetry tolerance. In the invention, the centering requirement of two inner cavity structures is converted into the requirement of clearance between two centering structures of a special tool. By rotating the special tool and adjusting the axial position of the pressed part, the clearance of the special tool in the inner cavity structure is uniform, and the rotation is flexible so as to ensure the symmetry index. Through the invention, the problems of hole wall scratching, part deformation, friction increase and the like caused by repeated trial assembly are avoided, the centering accuracy is ensured, and the operation is simple and easy.
Description
Technical field
The invention belongs to the Machining Technology field, particularly high-precision part assembly method and instrument.
Background technology
In certain high-precision hydraulic Assembly of the parts, need in the housing endoporus, press fit into a valve pocket, housing and valve pocket are respectively as shown in Figure of description 1,2, and valve pocket and housing endoporus are interference fit.After press-fiting, require on valve pocket waist-shaped hole 4 with respect to the centering pin-and-hole 5 center left-right symmetry on housing, as shown in Figure of description 3.
Due to valve pocket, in the housing inner chamber, after press-fiting, waist-shaped hole 4 be cannot see fully.Axially adjustment is dumb in hole for valve pocket simultaneously, and the depth dimensions press-fited by adjustment at present guarantees the symmetry index, operates very difficult, and can't detect, need trial assembly repeatedly in processing, press-fit, the defects such as scuffing, gouge, distortion easily occur, even cause product rejection.
Summary of the invention
The deficiency existed for prior art, the invention provides a kind of inner cavity centering method of adjustment and adjustment instrument thereof, guarantees the accuracy of alignment requirement of inner-cavity structure.
The technical scheme that the present invention takes is: a kind of use inner cavity centering is adjusted instrument inner cavity centering method of adjustment, comprises the following steps:
Step 1: valve pocket is required to press fit in mating holes according to angle;
Step 2: from the area that exposes of housing centering pin-and-hole (5) range estimation valve pocket mounting hole (4);
Knock the valve pocket both ends of the surface with the soft metal rod, adjust the valve pocket compression distance, range estimation waist-shaped hole (4) intersects area with centering pin-and-hole (5), makes it as far as possible large.
Step 3: inner cavity centering adjustment instrument is put into to inner chamber, eccentric block (3) can be penetrated in waist-shaped hole (4) fully;
Step 4: the rotation inner cavity centering is adjusted the knob (1) of instrument, presses mark (6) indicated direction, from the valve pocket two ends, finely tunes respectively compression distance, until eccentric block (3) can be flexible in the interior rotation that rotates a circle, guarantees accuracy of alignment;
Run into the place of clamping stagnation, show that this gap, place is too little.Just need to adjust the axial location that valve pocket is pressed into, increase the gap at this place, guarantee that eccentric block (3) rotates flexibly at this place.So adjust, until eccentric block (3) rotates one week fully flexibly.Because eccentric block (3) and the narrow limit of waist-shaped hole (4) fit clearance are very little, illustrate that now valve pocket waist-shaped hole (4) has reached desired accuracy of alignment with housing centering pin-and-hole (5).
Step 5: take out inner cavity centering and adjust instrument, complete part processing;
Described inner cavity centering is adjusted instrument, comprise knob (1), locating shaft (2) and eccentric block (3), eccentric block (3) is rotatable to be arranged in locating shaft (2) endoporus, the one end is fixedly connected with knob (1), the other end stretches out outside locating shaft (2), the eccentric block (3) stretched out outside locating shaft (2) is an asymmetric revolving body, only has a maximum radius place, and its maximum radius b is 1/3～1/5 of symmetry tolerance with the gap to the narrow limit of valve pocket waist-shaped hole (4).
Further, in order better to implement the present invention, above-mentioned locating shaft (2) cylindrical d2 and centering pin-and-hole (5) mating surface gap are no more than 0.003mm.
Further, in order better to implement the present invention, above-mentioned locating shaft (2) cylindrical d2 and centering pin-and-hole (5) endoporus D2 axiality are in Φ 0.01mm.
Further, in order better to implement the present invention, in above-mentioned eccentric block (3), the gap of cylindrical d3 and locating shaft (2) endoporus D2 is no more than 0.003mm.
Further, in order better to implement the present invention, above-mentioned knob (1) end face is provided with mark (6), and the direction of mark (6) is eccentric block (3) maximum radius direction.
Described mark (6) is labeled slots or mark line or arrow etc.
Described adjustment tool materials are preferably stainless steel material of wearability, also can take other wear-resisting materials.
Beneficial effect of the present invention: in high-precision part assembling, for because of visualization less than inner chamber, and the difficult problem that can't carry out the symmetry adjustment has been invented methodology and specific purpose tool.The present invention requires the centering of two inner-cavity structures to be converted into specific purpose tool two centering interstructural gap requirements.By rotating special tool, adjust the axial location that is pressed into part, make specific purpose tool even in the inner-cavity structure intermediate gap, rotate flexibly, thereby guarantee the symmetry index.The present invention has avoided trial assembly repeatedly to cause hole wall scuffing, part deformation, and the problems such as frictional force increase, guaranteed accuracy of alignment and operation is simple.
The accompanying drawing explanation
Fig. 1 is the shell structure schematic diagram, wherein, and 5: the centering pin-and-hole;
Fig. 2 is the valve pocket structural representation, wherein, and 4: waist-shaped hole;
Fig. 3 is local structure for amplifying schematic diagram after valve pocket and housing assembling, wherein, and 4: waist-shaped hole, 5: the centering pin-and-hole;
Fig. 4 (a) adjusts the instrument cutaway view for inner cavity centering of the present invention, wherein, 1: knob, 2: locating shaft, 3: eccentric block, Fig. 4 (b) adjusts the tool side view for inner cavity centering, wherein, 6: mark;
Fig. 5 is the eccentric block structure schematic diagram;
Fig. 6 is waist type positioning axis structure schematic diagram;
Fig. 7 is the inventive method flow chart.
The specific embodiment
For better explanation the present invention, below in conjunction with drawings and Examples, the present invention is described in further details.
Refer to Figure of description 4～Fig. 5.A kind of inner cavity centering is adjusted instrument, comprise knob 1, locating shaft 2 and eccentric block 3, eccentric block 3 is rotatable to be arranged in locating shaft 2 endoporus, the one end is fixedly connected with knob 1, the other end stretches out outside locating shaft 2, and the eccentric block 3 stretched out outside locating shaft 2 is an asymmetric revolving body, only has a maximum radius place, its maximum radius b is 1/3～1/5 of symmetry tolerance with the gap to the narrow limit of valve pocket waist-shaped hole 4, as shown in Figure 4, Figure 5.
For centering is adjusted, higher precision is arranged, further, as shown in Figure 6, above-mentioned locating shaft 2 cylindrical d2 and centering pin-and-hole 5 mating surface gaps are no more than 0.003mm.
Further, above-mentioned locating shaft 2 cylindrical d2 and centering pin-and-hole 5 endoporus D2 axialities are in Φ 0.01mm.
Further, in order better to implement the present invention, in above-mentioned eccentric block 3, the gap of cylindrical d3 and locating shaft 2 endoporus D2 is no more than 0.003mm.
Further, in order better to implement the present invention, above-mentioned knob 1 end face is provided with mark 6, and the direction of mark 6 is eccentric block 3 maximum radius directions, and mark 6 is labeled slots or mark line or arrow etc., and what the present embodiment was taked is mark line.
In order to make the adjustment instrument more durable, above-mentioned adjustment instrument adopts preferably stainless steel material of wearability, also can take other wear-resisting materials.
A kind of use inner cavity centering is adjusted instrument inner cavity centering method of adjustment, and its schematic flow sheet as shown in Figure 6, comprises the following steps:
Step 1: by valve pocket by the angle requirement housing endoporus of packing into;
Step 2: from the area that exposes of housing centering pin-and-hole 5 range estimation valve pocket mounting holes 4;
Knock the valve pocket both ends of the surface with the soft metal rod, adjust the valve pocket compression distance, range estimation waist-shaped hole 4 intersects area with centering pin-and-hole 5, makes it as far as possible large.
Step 3: inner cavity centering adjustment instrument is put into to inner chamber, make eccentric block 3 can penetrate in waist-shaped hole 4 fully;
Step 4: the knob 1 of rotation adjustment instrument, press mark 6 indicated directions, finely tune respectively compression distance from the valve pocket two ends, until eccentric block 3 can be flexible in the interior rotation that rotates a circle, guarantee accuracy of alignment;
Along a clockwise or counterclockwise direction, rotate gently described knob 1, eccentric block 3 rotates in the interior meeting of waist-shaped hole 4 thereupon.In rotation process, clamping stagnation occurs, illustrate that 4 gaps of eccentric block 3 and waist-shaped hole are too small, show that waist-shaped hole 4 positions are inclined to one side.If the labeled slots of knob 1 end face point to the right, just knock Fig. 3 valve pocket left end end face, eliminate clamping stagnation.If the labeled slots of knob 1 end face point to the left side, just knock Fig. 3 valve pocket right-hand member end face, eliminate clamping stagnation.Continuous rotation knob 1, so adjust, until eccentric block 3 revolution in waist-shaped hole 4 is flexible.
Step 5: take out specific purpose tool, complete part processing.
Generally, centering pin-and-hole 5 is circular, and corresponding locating shaft 2 is revolving body, and centering pin-and-hole 5 is other shapes, and as the waist type, corresponding locating shaft 2 is also waist type body, as shown in Figure 7.If centering pin-and-hole 5 is other shapes, corresponding locating shaft 2 is also and its shape matched.
Technique effect: the present invention requires the centering of two inner-cavity structures to be converted into specific purpose tool two centering interstructural gap requirements.By rotating special tool, adjust the axial location that is pressed into part, make specific purpose tool even in the inner-cavity structure intermediate gap, rotate flexibly, thereby guarantee the symmetry index.The present invention has avoided trial assembly repeatedly to cause hole wall scuffing, part deformation, and the problems such as frictional force increase, guaranteed accuracy of alignment and operation is simple.
Claims (7)
1. an inner cavity centering method of adjustment is characterized in that comprising the following steps:
Step 1: by valve pocket by the angle requirement housing endoporus of packing into;
Step 2: from the area that exposes of housing centering pin-and-hole (5) range estimation valve pocket mounting hole (4);
Knock the valve pocket both ends of the surface with the soft metal rod, adjust the valve pocket compression distance, range estimation waist-shaped hole (4) intersects area with centering pin-and-hole (5), makes it as far as possible large;
Step 3: inner cavity centering adjustment instrument is put into to inner chamber, eccentric block (3) can be penetrated in waist-shaped hole (4) fully;
Step 4: the rotation inner cavity centering is adjusted the knob (1) of instrument, presses mark (6) indicated direction, from the valve pocket two ends, finely tunes respectively compression distance, until eccentric block (3) can be flexible in the interior rotation that rotates a circle, guarantees accuracy of alignment;
Step 5: take out inner cavity centering and adjust instrument, complete part processing;
Described inner cavity centering is adjusted instrument, comprise knob (1), locating shaft (2) and eccentric block (3), eccentric block (3) is rotatable to be arranged in locating shaft (2) endoporus, the one end is fixedly connected with knob (1), the other end stretches out outside locating shaft (2), the eccentric block (3) stretched out outside locating shaft (2) is an asymmetric revolving body, only has a maximum radius place, and its maximum radius b is 1/3～1/5 of symmetry tolerance with the gap to the narrow limit of valve pocket waist-shaped hole (4).
2. inner cavity centering according to claim 1 is adjusted instrument, and it is characterized in that: locating shaft (2) cylindrical d2 and centering pin-and-hole (5) mating surface gap are no more than 0.003mm.
3. inner cavity centering according to claim 1 is adjusted instrument, and it is characterized in that: locating shaft (2) cylindrical d2 and centering pin-and-hole (5) endoporus D2 axiality are in Φ 0.01mm.
4. inner cavity centering according to claim 1 is adjusted instrument, it is characterized in that: in eccentric block (3), the gap of cylindrical d3 and locating shaft (2) endoporus D2 is no more than 0.003mm.
5. inner cavity centering according to claim 1 is adjusted instrument, and it is characterized in that: knob (1) end face is provided with mark (6), and the direction of mark (6) is eccentric block (3) maximum radius direction.
6. inner cavity centering according to claim 5 is adjusted instrument, and it is characterized in that: mark (6) is labeled slots or mark line or arrow.
7. inner cavity centering according to claim 1 is adjusted instrument, and it is characterized in that: the adjustment tool materials are wear-resisting material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110272575 CN102357798B (en) | 2011-09-14 | 2011-09-14 | Inner cavity centering adjustment method and adjustment tool thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110272575 CN102357798B (en) | 2011-09-14 | 2011-09-14 | Inner cavity centering adjustment method and adjustment tool thereof |
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| Publication Number | Publication Date |
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| CN102357798A CN102357798A (en) | 2012-02-22 |
| CN102357798B true CN102357798B (en) | 2013-12-18 |
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| CN 201110272575 Expired - Fee Related CN102357798B (en) | 2011-09-14 | 2011-09-14 | Inner cavity centering adjustment method and adjustment tool thereof |
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102528443A (en) * | 2012-02-27 | 2012-07-04 | 沃德(天津)传动有限公司 | Planet packet installing and regulating shaft |
| CN103604355B (en) * | 2013-10-16 | 2017-01-04 | 格林精密部件(苏州)有限公司 | Symmetry degree detection tool for corresponding reference hole of valve sleeve oil groove |
| CN104551619B (en) * | 2015-01-12 | 2017-01-18 | 无锡亚中智能装备有限公司 | Housing internal cavity pin press-fitting device |
| CN104708494B (en) * | 2015-01-27 | 2017-05-03 | 航天材料及工艺研究所 | Online detection device and method for cylindrical component butt joint |
| CN109578356A (en) * | 2018-11-28 | 2019-04-05 | 中国航空工业集团公司西安飞行自动控制研究所 | It can the external rotary valve housing configuration for adjusting zero-bit |
| CN111975287B (en) * | 2020-07-23 | 2022-03-15 | 哈尔滨电气动力装备有限公司 | Mounting process for hub cap of impeller of nuclear main pump |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1948466A (en) * | 1930-07-16 | 1934-02-20 | Firestone Steel Products Co | Valve parts assembling machine |
| US2256061A (en) * | 1940-09-09 | 1941-09-16 | Karl A Tapken | Valve tool |
| US3561090A (en) * | 1968-11-22 | 1971-02-09 | Robinair Mfg Corp | Valve core changing tool |
| US5590474A (en) * | 1995-08-08 | 1997-01-07 | Newport News Shipbuilding And Dry Dock Company | Flange bolt hole alignment pin |
| CN101301727A (en) * | 2008-05-22 | 2008-11-12 | 国营红峰机械厂 | Proper alignment positioning apparatus between components |
-
2011
- 2011-09-14 CN CN 201110272575 patent/CN102357798B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1948466A (en) * | 1930-07-16 | 1934-02-20 | Firestone Steel Products Co | Valve parts assembling machine |
| US2256061A (en) * | 1940-09-09 | 1941-09-16 | Karl A Tapken | Valve tool |
| US3561090A (en) * | 1968-11-22 | 1971-02-09 | Robinair Mfg Corp | Valve core changing tool |
| US5590474A (en) * | 1995-08-08 | 1997-01-07 | Newport News Shipbuilding And Dry Dock Company | Flange bolt hole alignment pin |
| CN101301727A (en) * | 2008-05-22 | 2008-11-12 | 国营红峰机械厂 | Proper alignment positioning apparatus between components |
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| CN102357798A (en) | 2012-02-22 |
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Granted publication date: 20131218 Termination date: 20180914 |