Aligning method that a kind of part is angular and fixture thereof
The invention belongs to the alignment tool technical field of machining, be specifically related to the angular aligning method of a kind of part and
For processing on Digit Control Machine Tool, there is hole or the part of hole group of mutually angularly relation, at the part at processing initial stage
In the centering stage, especially when arranging 0 degree of position of working origin, the most conventional method is by direct centering part
The position of offset hole, calculates the Angular Dimension in this hole and 0 degree of position, then by arranging at machine origin in the parameter of instruction
Position, final 0 degree is determined after the angular value of input；For can not the part of the direct offset hole on centering part, angle is being set
To time generally use aid, such as alignment pin, measuring stick etc., in use alignment pin is inserted on part existing angularly
In alignment holes, the gauge outfit then re-using amesdial is beaten the position of table centering alignment pin thus is drawn the position of the angular alignment holes of part
Put, then calculate the Angular Dimension in this hole and 0 degree of position, then angular by arranging input in the parameter of instruction at machine origin
Position, final 0 degree is determined after value, but in actual mechanical process, owing to aforesaid operations process link is complicated, to operation
The level of skill of work requires higher, sending out of the situations such as inaccurate, the wrong and angular parameter input error of conversion of centering easily occurs
Raw, ultimately result in part rejection, cause unnecessary economic loss.
[summary of the invention]
The technical problem to be solved is for above-mentioned deficiency of the prior art, it is provided that a kind of at the beginning of processing
Phase processing has the hole of mutually angularly relation or the centering stage of the part of hole group, it is possible to determine working origin quickly and efficiently
The method of 0 degree of position and fixture thereof.
The present invention is by the following technical solutions:
The aligning method that a kind of part is angular, comprises the following steps:
1) according to the structure fabrication processes centering block of part, and processing technique alignment holes and installing hole thereon, at fixture
Zero degree position processing technique alignment holes or angularly stretch face；
2) fixture is arranged on lathe, technique alignment holes on centering fixture or angularly stretch face, it is angular that zero degree is set
Position, compressing fixture；
3) part it is arranged on fixture and compresses；
4) by step one according to part practical structures make technique centering block by technique alignment holes thereon and peace
Dress hole is arranged on part；
5) for fixture can be utilized to determine zero degree angular position, use dial gauge to play table and stretch angularly stretching of fixture
Alignment holes on face, centering fixture determines zero degree position, angular for fixture can not be utilized to determine, the technique on centering part
Technique alignment holes on hole or technique centering block, determines 0 degree of angular position of part, by this position in lathe parameter arranges instruction
Put and be set to 0 degree of position.
Preferably, in described step 5, angular hole or hole, angular location is not had to be not easy to centering on limit if part is installed
Time, use technique centering block auxiliary transverse alignment part angular, check errorless after use pressing plate compressing component.
Preferably, in described step 5, if the angular relation having angular hole, described part and fixture on limit installed by part
Uniquely determined by the setting circle on the alignment pin on fixture, positioning spigot and part, hole, angular location.
The aligning method fixture that a kind of part is angular, the fixture being arranged on lathe including base, the end of described fixture
It is vertically arranged with L-shaped part on Zuo, described part is provided with the circular arc technique centering block for auxiliary transverse alignment, described fixture
Multiple pressing plate for compressing described part bottom surface it is provided with on base.
Preferably, described technique centering block outer radial is provided centrally with technique alignment holes, and described technique centering block sets
It is equipped with two installing holes for positioning assembling.
Preferably, described technique alignment holes is blind hole.
Preferably, described technique centering block can move freely, by described installing hole on to be processed of described part
Coordinate with the hole on described part and carry out positioning centering.
Compared with prior art, the present invention at least has the advantages that this method operating process is simple, and step is closed
Reason, centering is accurate, positions hole by the angular centering on direct centering locating piece, it is not necessary to again through complicated centering and conversion
Link, Appropriate application part original processing hole, have easy to use, it is not easy to the advantage that operation mistake occurs, be especially suitable for criticizing
The processing of amount part.
The fixture that this method uses, simple in construction, convenient and flexible installation, adapt to there is no angular hole or the inconvenience of angular hole especially
Processing during centering, accurately, reliably, machining accuracy is high, easy to operate, and centering need not be repeated for whole fixture Set and Positioning,
It is greatly improved work efficiency.
Below by drawings and Examples, technical scheme is described in further detail.
[accompanying drawing explanation]
Fig. 1 is the fixture clamping structure schematic diagram for clamping parts processing hole group；
Fig. 2 is the technique centering block angular schematic diagram on part after clamping；
Fig. 3 is the structural representation of technique centering block, and wherein, Fig. 3 (a) is technique centering block side view, and Fig. 3 (b) is work
Skill centering block top view；
Fig. 4 is the angular schematic diagram of hole group of certain part needing processing, and wherein, Fig. 4 (a) is processing part side view, Fig. 4
B () is that S is to pore size distribution schematic diagram.
Wherein: 1. part；2. base；3. pressing plate；4. technique centering block；4-1. technique alignment holes；4-2. installing hole.
[detailed description of the invention]
In describing the invention, it is to be understood that term " radially ", " on ", " outward ", the orientation of the instruction such as " vertically "
Or position relationship is based on orientation shown in the drawings or position relationship, it is for only for ease of the description present invention and simplifies description, and
It not to indicate or imply that the device of indication or element must have specific orientation, with specific azimuth configuration and operation, therefore
It is not considered as limiting the invention.In describing the invention, except as otherwise noted, " multiple " are meant that two or two
More than individual.
In describing the invention, it should be noted that unless otherwise clearly defined and limited, term " is arranged ", " phase
Even ", " connection " should be interpreted broadly, for example, it may be fixing connection, it is also possible to be to removably connect, or be integrally connected；Can
To be mechanical connection, it is also possible to be electrical connection；Can be to be joined directly together, it is also possible to be indirectly connected to by intermediary, Ke Yishi
The connection of two element internals.For the ordinary skill in the art, can understand that above-mentioned term is at this with concrete condition
Concrete meaning in invention.
The invention discloses the aligning method that a kind of part is angular, its step is as follows:
(1) processing technique alignment holes or stretch face: according to the construction features processing technology alignment holes 4 of part 1, and in technique
Processing technique alignment holes 4-1 and installing hole 4-2 on centering block 4；On the zero degree position of chuck body processing technique alignment holes or
Angularly stretch face；
(2) clamping device: fixture is arranged on lathe, technique alignment holes on centering fixture or angularly stretch face, if
Zero setting degree angular position, compressing fixture；
(3) part is installed: be arranged on fixture by part 1, part 1 installed and on limit, has the part in angular hole, installs
Time part 1 and fixture angular relation by the setting circle on the alignment pin on fixture, positioning spigot and part, angularly position Kong Wei
One determines；Part 1 is installed and on limit, does not has angular hole or hole, angular location to need to use technique centering block when being not easy to centering
Auxiliary transverse alignment part is angular；Check errorless rear compressing component；
(4) mounting process centering block: the technique centering block made according to part practical structures is passed through on part existing
Hole is arranged on part；
(5) determine angularly: for fixture can be utilized to determine zero degree angular position, use dial gauge to play table and stretch fixture
The face that angularly stretches or centering fixture on alignment holes determine zero degree position；Angular for fixture can not be utilized to determine, centering
Fabrication hole on part 1 or technique alignment holes 4-1 on technique centering block 4, now 0 degree of angular position of part will be the most true
Fixed, it is 0 degree of position by arranging this position in the current angular position angular parameter column in lathe parameter arranges instruction.
Referring to shown in Fig. 1 to Fig. 4, the present invention also provides for the aligning method fixture that a kind of part is angular, including base
The fixture being arranged on lathe, the base 2 of fixture is vertically arranged with L-shaped part 1, part 1 is provided with for auxiliary transverse alignment
Circular arc technique centering block 4, clamp base 2 is provided with multiple pressing plate 3 for compressing described part 1 bottom surface.
Technique centering block 4 outer radial is provided centrally with technique alignment holes 4-1, and technique alignment holes 4-1 is blind hole, and technique is looked for
It is provided with the installing hole 4-2 for positioning assembling on positive block 4；Technique centering block 4 freely can move on to be processed of part 1
Dynamic, coordinated with the hole on part 1 by installing hole 4-2 and carry out location centering.
Bore as a example by boring side and end-face hole by certain model aircraft engine turbine casing: the end face of certain machine turbine casing and outer
A, B, C, D, E, F, G, H, J, K, L, M, N totally 13 group different size, different angular holes group is distributed on wall, and in processing, other owns
Kong Zuqian, only at two, C hole between installation limit has processed and has put in place, remaining hole group is not the most processed, porose group
Angular position is all determined angular position by the C hole group processed.The former processing method 0 degree of angular position before determining processing
Time, take to insert in the arbitrary hole in 42 C holes by an alignment pin, then use lever meter to play table in the both sides of alignment pin and determine
The center of alignment pin thus indirectly determine the position in C hole, then on the basis of this C hole, by C disc spins 6 °, determine zero
0 degree of angular position of part.Said method firstly there are the position with alignment pin during operation and indirectly determines the position in C hole
Existing and position inaccurate problem, secondly when beating the both sides of alignment pin with lever meter, working place is little, and inconvenient operation plays table
Result is inaccurate, the problem secondly operational error easily occur when coordinate rotates angular.
The technique centering block processing method currently using band technique alignment holes carries out clamping to turbine casing process side face
Centering, the steps include: first processing technology centering block, has at 2 installing hole for installing limit with turbine casing on technique centering block
On location, 2 C holes assembling, the radial design at mounting blocks has the technique alignment holes of ф 8 at, with wherein 1 at installing hole
It is angularly 6 °；Mounting process block again, after attaching components to compress on fixture, solid in technique block is arranged on any 2 C holes
Fixed；Finally, according to the radial direction alignment holes on centering mounting blocks, this position is set to 0 degree.With the method centering part angular time tool
There is the advantage that accuracy quick, simple is high, greatly simplify centering process, reduce centering difficult point, improve centering precision.