CN108942084A - The accuracy control method of magnitude of interference in adopting conical surface interference assembling process - Google Patents
The accuracy control method of magnitude of interference in adopting conical surface interference assembling process Download PDFInfo
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- CN108942084A CN108942084A CN201810738284.2A CN201810738284A CN108942084A CN 108942084 A CN108942084 A CN 108942084A CN 201810738284 A CN201810738284 A CN 201810738284A CN 108942084 A CN108942084 A CN 108942084A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P11/00—Connecting or disconnecting metal parts or objects by metal-working techniques not otherwise provided for
- B23P11/02—Connecting or disconnecting metal parts or objects by metal-working techniques not otherwise provided for by first expanding and then shrinking or vice versa, e.g. by using pressure fluids; by making force fits
- B23P11/025—Connecting or disconnecting metal parts or objects by metal-working techniques not otherwise provided for by first expanding and then shrinking or vice versa, e.g. by using pressure fluids; by making force fits by using heat or cold
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Abstract
The invention discloses a kind of accuracy control methods of magnitude of interference in adopting conical surface interference assembling process, are related to core main pump technical field, and main purpose is to realize accurately to control the radial interference amount of axial workpiece and hole type parts when adopting conical surface interference cooperates.Main technical schemes of the invention are as follows: this method includes the radial dimension and taper according to axial workpiece and hole type parts end face, calculates hole type parts and carries out mobile displacement relative to axial workpiece in the axial direction；Axial workpiece and hole type parts are assembled under normal temperature state；Installation displacement control piece, installs locating part, locating part offsets with Bit andits control part in hole type parts on the end face of axial workpiece；Hole type parts and Bit andits control part are removed, and are installed after hole type parts are heated to axial workpiece, end face and the locating part of axial workpiece offset, and after axial workpiece and hole type parts reach normal temperature state, the radial interference amount needed for it can be obtained.
Description
Technical field
The present invention relates to core main pump technical fields, in particular to magnitude of interference in a kind of adopting conical surface interference assembling process
Accuracy control method.
Background technique
Core main pump is usually run under 250-300 celsius temperature medium, so that its internal hole type parts and axial workpiece
It works under high temperature and high pressure environment, it is generally the case that usually cooperated between the axial workpiece and hole type parts with adopting conical surface interference and connected
It connects, to play the role of being accurately positioned installation
For example, being assembled using adopting conical surface interference between impeller and axis in main pump, accurate positioning between the two is realized, is kept away
High-temperature medium is exempted from through flowing, it is therefore prevented that wash away uneven with heat.In order to guarantee that main pump can safely and reliably be run, need
The radial interference amount precision with higher of cone match between axial workpiece and hole type parts, however, due to being therebetween
Cone match, and the precision of radial interference amount is often difficult to control, it is therefore proposed that radial mistake in a kind of adopting conical surface interference assembling process
The accuracy control method for the amount of being full of has become core main pump field technical problem urgently to be resolved.
Summary of the invention
In view of this, the embodiment of the present invention provides a kind of accuracy control method of magnitude of interference in adopting conical surface interference assembling process,
Main purpose is to realize that the radial interference amount to axial workpiece and hole type parts in adopting conical surface interference engagement process is accurately controlled
System.
In order to achieve the above objectives, present invention generally provides following technical solutions:
The embodiment of the invention provides a kind of accuracy control methods of magnitude of interference in adopting conical surface interference assembling process, are used for core master
Pump, which comprises
According to the radial dimension and taper of axial workpiece and hole type parts end face, when calculating is intended to obtain required radial interference amount
The hole type parts carry out mobile displacement relative to the axial workpiece in the axial direction；
The axial workpiece and hole type parts are assembled under normal temperature state；
The installation displacement control piece on the end face of the axial workpiece, and controlled in the hole type parts with the displacement
Product respective end installs locating part, and the locating part offsets with the Bit andits control part, wherein the thickness of the Bit andits control part
Degree is equal to the displacement；
The hole type parts and the Bit andits control part are removed, and are installed after the hole type parts are heated to institute
It states on axial workpiece, the end face of the axial workpiece is made to offset with the locating part, to the axial workpiece and the hole class zero
After part reaches normal temperature state, the radial interference amount needed for it can be obtained.
Further, the radial dimension according to axial workpiece and hole type parts both ends, calculates and is intended to obtain required mistake
The hole type parts carry out mobile displacement relative to the axial workpiece in the axial direction when the amount of being full of, comprising:
Measure the maximum outside diameter size at the axial workpiece both ends and the maximum inner diameter size at the hole type parts both ends；
According to the maximum outside diameter size, the maximum inner diameter size and the taper, calculating is intended to obtain required magnitude of interference
Shi Suoshu hole type parts carry out mobile actual displacement amount relative to the axial workpiece in the axial direction.
Further, described according to the maximum outside diameter size, the maximum inner diameter size and the taper, calculate desire
Obtain the meter that hole type parts when required magnitude of interference carry out mobile actual displacement amount L relative to the axial workpiece in the axial direction
Calculate formula are as follows:
L=(Dmax1-dmax1)/K-(Dmax2-dmax2)/K
Wherein, L is actual displacement amount, Dmax1For the maximum outside diameter of axial workpiece big end, dmax1Most for axial workpiece small end
Big outer diameter, Dmax2For the maximum inner diameter of hole type parts big end, dmax2For the maximum inner diameter of hole type parts small end, K be hole type parts or
The taper of axial workpiece.
Further, the Bit andits control part includes multiple thickness in millimetre range and/or the gasket of micro-scaled range,
The installation displacement control piece on the end face of the axial workpiece, comprising:
It chooses multiple pads to be overlapped, and guarantees that the overall thickness of all gaskets after being superimposed is equal to the displacement；
All gaskets that superposition finishes are installed to the small end face of the axial workpiece.
Further, it is described the axial workpiece and hole type parts are assembled under normal temperature state after, the side
Method includes:
Measure the first distance between the small end end face of the hole type parts and the small end end face of the axial workpiece.
Further, described to remove the hole type parts and the Bit andits control part, and the hole type parts are carried out
After heating on installation to the axial workpiece, the end face of the axial workpiece is set to offset with the locating part, to the axis class zero
After part and the hole type parts reach normal temperature state, after the radial interference amount needed for it can be obtained, the method also includes:
The locating part is removed from the hole type parts, and measure the hole type parts small end end face and the axis
Second distance between the small end end face of class part；
The first distance and the second distance are obtained into a difference as difference, and judge the big of the difference and preset value
It is small, if the difference is less than or equal to the preset value, then it represents that the radial interference of the axial workpiece and the hole type parts
Amount is qualified.
By above-mentioned technical proposal, the present invention is at least had the advantages that
The accuracy control method of magnitude of interference in adopting conical surface interference assembling process provided in an embodiment of the present invention, by according to axis class
The radial dimension and taper of part and hole type parts end face, hole type parts are in the axial direction when being intended to obtain required radial interference amount for calculating
Mobile displacement is carried out relative to axial workpiece；Then axial workpiece and hole type parts are assembled under normal temperature state, and
The installation displacement control piece on the end face of axial workpiece, and install and limit with Bit andits control part respective end in hole type parts
Part, and locating part offsets with Bit andits control part, wherein the thickness of Bit andits control part is equal to displacement；Again by hole type parts and position
It moves control piece to remove, and installs after hole type parts are heated to axial workpiece, make end face and the locating part of axial workpiece
It offsets, in the process, since Bit andits control part has been removed, and its thickness is equal with the displacement being calculated, and limits
The position of part is the position of displacement control piece before removing, and therefore, installing hole type parts again makes axial workpiece offset with locating part
During the displacement of hole type parts in the axial direction be Bit andits control part thickness, that is to say the displacement being calculated,
After axial workpiece and hole type parts reach normal temperature state, the radial interference amount needed for it can be obtained.The embodiment of the present invention is logical
It crosses and converts hole type parts relative to axis class by calculating for the radial interference amount in axial workpiece and hole type parts installation process
Part is to calculate in axial displacement, and by the displacement that Bit andits control part and locating part control hole type parts in assembling process
Resulting displacement, so that axial workpiece and the available required radial interference amount of hole type parts, realize to the conical surface
The accurate control of the radial interference amount of the axial workpiece and hole type parts of cooperation.
Detailed description of the invention
Fig. 1 is the accuracy control method process of magnitude of interference in a kind of adopting conical surface interference assembling process provided in an embodiment of the present invention
Figure；
Fig. 2 is the accuracy control method stream of magnitude of interference in another adopting conical surface interference assembling process provided in an embodiment of the present invention
Cheng Tu.
Specific embodiment
To make the object, technical solutions and advantages of the present invention clearer, below in conjunction with the preferred embodiment of the present invention
In attached drawing, technical solution in the embodiment of the present invention is further described in more detail.In the accompanying drawings, identical from beginning to end or
Similar label indicates same or similar element or element with the same or similar functions.Described embodiment is this hair
Bright a part of the embodiment, instead of all the embodiments.The embodiments described below with reference to the accompanying drawings are exemplary, it is intended to
It is used to explain the present invention, and is not considered as limiting the invention.Based on the embodiments of the present invention, ordinary skill
Personnel's every other embodiment obtained without creative efforts, shall fall within the protection scope of the present invention.
The embodiment of the present invention is described in detail with reference to the accompanying drawing.
In the description of the present embodiment, it is to be understood that term " center ", " longitudinal direction ", " transverse direction ", "front", "rear",
The orientation or positional relationship of the instructions such as "left", "right", "vertical", "horizontal", "top", "bottom" "inner", "outside" is based on attached drawing institute
The orientation or positional relationship shown is merely for convenience of description the present embodiment and simplifies description, rather than indication or suggestion meaning
Device or element must have a particular orientation, be constructed and operated in a specific orientation, therefore should not be understood as to the present embodiment
The limitation of protection scope.
As stated in the background art, it is assembled at present using adopting conical surface interference between axial workpiece and hole type parts in main pump, it is real
Show accurate positioning between the two, avoids high-temperature medium through flowing, it is therefore prevented that wash away uneven with heat.In order to guarantee to lead
Pump can safely and reliably be run, and need the radial interference amount of cone match between axial workpiece and hole type parts with higher
Precision, however, due to being cone match therebetween, and the precision of radial interference amount is often difficult to control, it is therefore proposed that a kind of
The accuracy control method of radial magnitude of interference has become core main pump field technical problem urgently to be resolved in adopting conical surface interference assembling process.
To solve the above-mentioned problems, the embodiment of the invention provides in a kind of adopting conical surface interference assembling process magnitude of interference it is accurate
Control method is used for core main pump, as shown in Figure 1, which comprises
101, according to the radial dimension and taper of axial workpiece and hole type parts end face, calculating is intended to obtain required radial interference
The hole type parts carry out mobile displacement relative to the axial workpiece in the axial direction when amount.
Wherein, the taper of axial workpiece and hole type parts is equal.By calculating the radial direction of axial workpiece and hole type parts
Magnitude of interference is converted into the axial displacement of easily controllable hole type parts, then in the axial direction by hole type parts when control assembly
The displacement mobile relative to axial workpiece, can be realized the control to radial magnitude of interference.Moreover, the method can be adapted for boring
Face cooperates the cooperation for the axial workpiece and hole type parts that interference axial length is 100-500mm between 1:10-1:20.
102, the axial workpiece and hole type parts are assembled under normal temperature state.
103, on the end face of the axial workpiece installation displacement control piece, and in the hole type parts with institute's rheme
It moves control piece respective end and locating part is installed, and the locating part offsets with the Bit andits control part.
Wherein, the thickness of Bit andits control part is equal to the displacement being calculated.By axial workpiece and hole type parts in room temperature
It is assembled under state, and installation displacement control piece on the small end face of axial workpiece after mounting, then again in hole type parts
Interior installation locating part, makes locating part offset with Bit andits control part, then axial workpiece is tapped using soft hammer, to guarantee axial workpiece
Be fitted close between hole type parts, be further ensured that locating part in hole type parts defined by position be Bit andits control part
Position achieved.Certainly, the erection sequence of axial workpiece, hole type parts, Bit andits control part and locating part is not limited to above-mentioned suitable
Then locating part is mounted on hole class zero for example, can also first install Bit andits control part to the small end face of axial workpiece by sequence
In part, then hole type parts cold conditions installed to axial workpiece.So, distance of the small end face of axial workpiece apart from locating part
The as thickness of Bit andits control part, that is to say, that the displacement being calculated.
Specifically, in an optional embodiment, there are many structure types of Bit andits control part, as long as keeping its thickness uniform
And can be equal to and calculate resulting displacement, for example, Bit andits control part can be less than the circle of hole type parts internal diameter using diameter
Shape backing structure.And in another optional embodiment, the structure type of locating part also there are many, as long as may be implemented to be fixed on
In hole type parts, and can limiting displacement control piece position, in order to guarantee the versatility of locating part, for example, locating part
Structure can be a disk, the disk periphery can be uniformly distributed it is multiple with the openings that are connected to inside it, inside can be set
Multiple anchor flukes that are extended or retracting the opening controlled by driving mechanism, and driving mechanism can use and pass through control
The equipment such as the cylinder of valve gas source connection processed, moreover, it is also possible to which operator is worked as in one switch of series connection, realization between control valve and power supply
Member presses lower switch, and cylinder can drive anchor fluke to stretch out, and be anchored on the inner wall of hole type parts, meanwhile, it can control control valve
Flow come control anchor fluke stretching length, to control position of the locating part in hole type parts.
104, the hole type parts and the Bit andits control part are removed, and is installed after the hole type parts are heated
On to the axial workpiece, the end face of the axial workpiece is set to offset with the locating part, to the axial workpiece and the hole
After class part reaches normal temperature state, the radial interference amount needed for it can be obtained.
Wherein, hole type parts and Bit andits control part are removed, then heats hole type parts, specifically, heating temperature
Degree can be used the coefficient of expansion and calculate acquisition, and add 50 degrees Celsius on this basis, to guarantee hole type parts and axis class zero
The hot charging process of part.Since Bit andits control part has been removed, when installing the hole type parts after heating to axial workpiece, axis class
Part can offset with the locating part in hole type parts, i.e. the displacement of the axial workpiece in the axial direction thickness that is Bit andits control part
Degree, that is, the displacement being calculated, after axial workpiece and hole type parts are cooled to normal temperature state, the radial interference of the two
Amount is required radial interference amount.It should be noted that the normal use in order to guarantee locating part, it should be not variable using high temperature resistant
The material of shape is made.
The accuracy control method of magnitude of interference in adopting conical surface interference assembling process provided in an embodiment of the present invention, by according to axis class
The radial dimension and taper of part and hole type parts end face, hole type parts are in the axial direction when being intended to obtain required radial interference amount for calculating
Mobile displacement is carried out relative to axial workpiece；Then axial workpiece and hole type parts are assembled under normal temperature state, and
The installation displacement control piece on the end face of axial workpiece, and install and limit with Bit andits control part respective end in hole type parts
Part, and locating part offsets with Bit andits control part, wherein the thickness of Bit andits control part is equal to displacement；Again by hole type parts and position
It moves control piece to remove, and installs after hole type parts are heated to axial workpiece, make end face and the locating part of axial workpiece
It offsets, in the process, since Bit andits control part has been removed, and its thickness is equal with the displacement being calculated, and limits
The position of part is the position of displacement control piece before removing, and therefore, installing hole type parts again makes axial workpiece offset with locating part
During the displacement of hole type parts in the axial direction be Bit andits control part thickness, that is to say the displacement being calculated,
After axial workpiece and hole type parts reach normal temperature state, the radial interference amount needed for it can be obtained.The embodiment of the present invention is logical
It crosses and converts hole type parts relative to axis class by calculating for the radial interference amount in axial workpiece and hole type parts installation process
Part is to calculate in axial displacement, and by the displacement that Bit andits control part and locating part control hole type parts in assembling process
Resulting displacement, so that axial workpiece and the available required radial interference amount of hole type parts, realize to the conical surface
The accurate control of the radial interference amount of the axial workpiece and hole type parts of cooperation.
Further, in order to better illustrate above-mentioned axial workpiece and hole type parts in cone match magnitude of interference it is accurate
Control, as the refinement and extension to above-described embodiment, the embodiment of the invention provides in another adopting conical surface interference assembling process
The accuracy control method of magnitude of interference is used for core main pump, as shown in Fig. 2, but not limited to this, it is specific as follows shown:
201, the maximum outside diameter size at the axial workpiece both ends and the maximum inner diameter at the hole type parts both ends are measured
Size.
202, according to the maximum outside diameter size, the maximum inner diameter size and the taper, calculating is intended to obtain required mistake
The hole type parts carry out mobile actual displacement amount relative to the axial workpiece in the axial direction when the amount of being full of.
Since axial workpiece and hole type parts have tolerance in processing and manufacturing, in order to improve radial mistake therebetween
The accuracy for the amount of being full of, can first under normal temperature state Parts Measurement both ends maximum outside diameter size, i.e. upper public affairs of outer diameter
Difference similarly measures the maximum inner diameter size at hole type parts both ends, the i.e. upper tolerance value of internal diameter, then under normal temperature state
Using the maximum outside diameter size of axial workpiece, the maximum inner diameter size of hole type parts and taper, calculating is intended to obtain required magnitude of interference
When hole type parts mobile actual displacement amount is carried out relative to axial workpiece in the axial direction, with guarantee axial workpiece and hole type parts it
Between radial interference amount accuracy.
Specifically, there are many calculations of the actual displacement amount, reaching required mistake as long as can be calculated
Hole type parts are axially relative to the amount of feeding of axial workpiece in the case where the amount of being full of.In an optional embodiment, institute
The actual displacement amount stated can pass through formula L=(Dmax1-dmax1)/K-(Dmax2-dmax2)/K, wherein L is actual displacement amount,
Dmax1For the maximum outside diameter of axial workpiece big end, dmax1For the maximum outside diameter of axial workpiece small end, Dmax2For hole type parts big end
Maximum inner diameter, dmax2For the maximum inner diameter of hole type parts small end, K is the taper of hole type parts or axial workpiece, is calculated simple quasi-
Really.
203, the axial workpiece and hole type parts are assembled under normal temperature state.
204, the first distance between the small end end face of the hole type parts and the small end end face of the axial workpiece is measured.
By the way that axial workpiece and hole type parts are assembled under normal temperature state, and the measured hole class zero under normal temperature state
First distance between the small end end face of part and the small end end face of the axial workpiece, and the first distance is recorded, with
Just after assembly, the distance between the small end end face of hole type parts and the small end end face of the axial workpiece are measured again,
And the distance and first distance work is poor, then the difference is compared with difference is allowed, if in tolerance, then it represents that
Cooperate obtained radial interference amount qualified, if assembly must be re-started not in tolerance, is walked by this calibrating
Suddenly, it can be further improved the control accuracy of axial workpiece and hole type parts the radial interference amount in adopting conical surface interference cooperation.
205, multiple pads are chosen to be overlapped, and guarantees that the overall thickness of all gaskets after being superimposed is equal to the displacement.
So that distance of the small end face apart from locating part of axial workpiece is the thickness of Bit andits control part, that is to say, that the institute being calculated
State actual displacement amount.
206, all gaskets that superposition finishes are installed to the small end face of the axial workpiece.
Wherein, Bit andits control part above-mentioned may include multiple thickness in millimetre range and/or the pad of micro-scaled range
Piece when assembly, can choose multiple pads and be overlapped, and guarantee that the overall thickness of superimposed all gaskets is equal to reality above-mentioned
Then all gaskets after superposition are placed on the small end face of axial workpiece by border displacement.By by Bit andits control part
It is designed as multiple thickness to constitute in the gasket of millimetre range and/or micro-scaled range, allows operator in reality
In assembling process, according to the corresponding actual displacement amount being calculated, gasket is arbitrarily chosen in multiple pads and is overlapped, until
The superimposed thickness of all gaskets chosen is equal to the corresponding actual displacement magnitude being calculated, that is, can mount to axial workpiece
End face improves the versatility of Bit andits control part.
207, locating part, and the locating part and institute are installed in the hole type parts with the Bit andits control part respective end
Rheme moves control piece and offsets.
208, the hole type parts and the Bit andits control part are removed, and is installed after the hole type parts are heated
On to the axial workpiece, the end face of the axial workpiece is set to offset with the locating part, to the axial workpiece and the hole
After class part reaches normal temperature state, the radial interference amount needed for it can be obtained.
Wherein, hole type parts and Bit andits control part are removed, then heats hole type parts, specifically, heating temperature
Degree can be used the coefficient of expansion and calculate acquisition, and add 50 degrees Celsius on this basis, to guarantee hole type parts and axis class zero
The hot charging process of part.Since Bit andits control part has been removed, when installing the hole type parts after heating to axial workpiece, axis class
Part can offset with the locating part in hole type parts, i.e. the displacement of the axial workpiece in the axial direction thickness that is Bit andits control part
Degree, that is, the displacement being calculated, after axial workpiece and hole type parts are cooled to normal temperature state, the radial interference of the two
Amount is required radial interference amount.It should be noted that the normal use in order to guarantee locating part, it should be not variable using high temperature resistant
The material of shape is made.
209, the locating part is removed from the hole type parts, and measures small end end face and the institute of the hole type parts
State the second distance between the small end end face of axial workpiece.
210, the first distance and the second distance are obtained into a difference as difference, and judges the difference and preset value
Size, if the difference be less than or equal to the preset value, then it represents that the radial direction of the axial workpiece and the hole type parts
Magnitude of interference is qualified.
By measuring the small end end face of hole type parts and the small end end face of axial workpiece after cooling after removing locating part
Between second distance, and the second distance made with the first distance before recorded it is poor, and by the difference and preset value progress
Compare, i.e., with allow difference be compared, specific franchise can within 0.002mm, if the difference within 0.002mm,
It then indicates to cooperate obtained radial interference amount qualified, if being not more than 0.002mm, assembly must be re-started, pass through this inspection
Determine step, the control that can be further improved axial workpiece and hole type parts the radial interference amount in adopting conical surface interference cooperation is accurate
Degree.
Finally, it should be noted that the above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations；Although
Present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that: it still may be used
To modify the technical solutions described in the foregoing embodiments or equivalent replacement of some of the technical features；
And these are modified or replaceed, technical solution of various embodiments of the present invention that it does not separate the essence of the corresponding technical solution spirit and
Range.
Claims (6)
1. the accuracy control method of magnitude of interference in a kind of adopting conical surface interference assembling process is used for core main pump characterized by comprising
According to the radial dimension and taper of axial workpiece and hole type parts end face, when calculating is intended to obtain required radial interference amount described in
Hole type parts carry out mobile displacement relative to the axial workpiece in the axial direction；
The axial workpiece and hole type parts are assembled under normal temperature state；
On the end face of the axial workpiece installation displacement control piece, and in the hole type parts with the Bit andits control part
Respective end installs locating part, and the locating part offsets with the Bit andits control part, wherein the thickness etc. of the Bit andits control part
In the displacement；
The hole type parts and the Bit andits control part are removed, and are installed after the hole type parts are heated to the axis
On class part, the end face of the axial workpiece is made to offset with the locating part, is reached to the axial workpiece and the hole type parts
To after normal temperature state, the radial interference amount needed for it can be obtained.
2. control method according to claim 1, which is characterized in that described according to axial workpiece and hole type parts both ends
Radial dimension calculates hole type parts when being intended to obtain required magnitude of interference and is moved in the axial direction relative to the axial workpiece
Displacement, comprising:
Measure the maximum outside diameter size at the axial workpiece both ends and the maximum inner diameter size at the hole type parts both ends；
According to the maximum outside diameter size, the maximum inner diameter size and the taper, calculating is intended to obtain required magnitude of interference when institute
It states hole type parts and carries out mobile actual displacement amount relative to the axial workpiece in the axial direction.
3. control method according to claim 2, which is characterized in that it is described according to the maximum outside diameter size, it is described most
Large diameter size and the taper calculate the axis class relatively described in the axial direction of hole type parts when being intended to obtain required magnitude of interference
Part carries out the calculation formula of mobile actual displacement amount L are as follows:
L=(Dmax1-dmax1)/K-(Dmax2-dmax2)/K
Wherein, L is actual displacement amount, Dmax1For the maximum outside diameter of axial workpiece big end, dmax1It is outer for the maximum of axial workpiece small end
Diameter, Dmax2For the maximum inner diameter of hole type parts big end, dmax2For the maximum inner diameter of hole type parts small end, K is hole type parts or axis class
The taper of part.
4. control method according to claim 1, which is characterized in that the Bit andits control part includes multiple thickness in millimeter
The gasket of grade range and/or micro-scaled range, the installation displacement control piece on the end face of the axial workpiece, comprising:
It chooses multiple pads to be overlapped, and guarantees that the overall thickness of all gaskets after being superimposed is equal to the displacement；
All gaskets that superposition finishes are installed to the small end face of the axial workpiece.
5. control method according to claim 1, which is characterized in that it is described by the axial workpiece and hole type parts normal
After being assembled under temperature state, which comprises
Measure the first distance between the small end end face of the hole type parts and the small end end face of the axial workpiece.
6. control method according to claim 5, which is characterized in that described by the hole type parts and the Bit andits control
Part is removed, and after the hole type parts are heated on installation to the axial workpiece, make the end face of the axial workpiece with
The locating part offsets, and after the axial workpiece and the hole type parts reach normal temperature state, the diameter needed for it can be obtained
To after magnitude of interference, the method also includes:
The locating part is removed from the hole type parts, and measure the hole type parts small end end face and the axis class zero
Second distance between the small end end face of part；
The first distance and the second distance are obtained into a difference as difference, and judge the size of the difference and preset value,
If the difference is less than or equal to the preset value, then it represents that the radial interference amount of the axial workpiece and the hole type parts is closed
Lattice.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112186984A (en) * | 2020-09-25 | 2021-01-05 | 中车大同电力机车有限公司 | Method for assembling spline housing and rotating shaft and motor |
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| US7918006B2 (en) * | 2007-03-22 | 2011-04-05 | Semyon Brayman | Method for joining ends of sections of pipe |
| CN103261000A (en) * | 2010-12-21 | 2013-08-21 | 蒂森克虏伯普利斯坦有限公司 | Method for the chipless connection of the pinion or input shaft to the torsion bar of a servo steering system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112186984A (en) * | 2020-09-25 | 2021-01-05 | 中车大同电力机车有限公司 | Method for assembling spline housing and rotating shaft and motor |
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| CN108942084B (en) | 2020-02-14 |
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