CN207290076U - For delineating the device of machining benchmark line on half-cone nacelle blank - Google Patents

Abstract

For delineating the device of machining benchmark line on half-cone nacelle blank, it includes base, it is vertically-mounted on base to have more supporting rods, the top of supporting rod sets rubber block, two row rail bracketses are additionally provided with base, all supporting rods install a vertical line rail between two row rail bracketses on each column rail brackets；Crossbeam is set above vertical line rail, and crossbeam is connected by longitudinal sliding block with vertical line rail, and the first guide rail lock is installed on longitudinal sliding block, x wire rail is installed on crossbeam；Slide unit is installed on x wire rail, vertical guide pair is installed on slide unit, vertical guide pair includes vertical sliding block and vertical line rail, vertical sliding block is fixedly connected on slide unit, the bottom of vertical line rail is connected with scriber mounting base, second guide rail lock is installed on vertical sliding block, vertical scriber and horizontal scriber are installed in scriber mounting base；Magnetic railings ruler is equipped with vertical line rail and vertical line rail, magnetic head is installed on longitudinal sliding block and vertical sliding block, digital display assembly is also equipped with slide unit.

Description

For delineating the device of machining benchmark line on half-cone nacelle blank

Technical field

Machining auxiliary device technical field is the utility model is related to, it is more particularly to a kind of to be used in half-cone nacelle blank The device of upper delineation machining benchmark line.

Background technology

Traditional nacelle processing tool is to realize production by high-precision clamp base and the combination of dedicated positioning supporting part Product position, and corresponding dimensioned is then completed by large-sized gantry milling machine.

A kind of figures 1 and 2 show that large-scale nonmetallic composite taper nacelle（Material is glass fibre+thermosetting property tree Fat）, the taper nacelle front end is small, rear end is big, bulkhead consistency of thickness, mainly includes two and half splitted along bullet axis Taper nacelle（For ease of follow-up statement, in the utility model, it is axis that taper nacelle will be splitted into two-part plane definition To datum level）, during production, above-mentioned two half-cone nacelle separate machined（Mainly axis is completed on two half-cone nacelle blanks Processed to datum level and rear end face, the allowance of length direction is reserved in the rear end of half-cone nacelle blank to be come）, process Two half-cone nacelles are spliced together by Cheng Houzai by hinge and fastener, so as to form hollow taper nacelle.The taper The total length of nacelle reaches 6030mm, and length tolerance requires to control in 10mm, since nacelle shape is tapered, can not pass through briquetting It is fixed in etc. simple clamping piece on the workbench of planer-type milling machine, and due to the half-cone nacelle of nonmetallic composite Blank is the thin-wall part of boring, and chucking power is slightly larger to be easy for deforming, and when plant produced must customize baroque large-scale Fixture grips it.

More than 8 meters（Workbench length）Large-sized gantry milling machine price generally in more than 700,000 yuan of RMB, for order Little situation is measured, large-scale planer-type milling machine is specially bought for the taper nacelle shown in production Fig. 1 and Fig. 2 and customizes complexity What large-scale jig was not calculated clearly.

Utility model content

It is used for the technical problem to be solved by the present invention is to provide a kind of the half of foregoing large-scale nonmetallic composite The device of machining benchmark line is delineated on taper nacelle blank, during plant produced, can first pass through the device depicted on blank plus Work datum line, then can obtain half-cone cabin using hand held cutting device along machining benchmark line excision blank redundance Body finished product, two half-cone nacelle finished products are spliced together by hinge and fastener and can obtain taper nacelle.

In order to solve the above-mentioned technical problem, the utility model adopts the following technical solution：One kind is used in half-cone nacelle The device of machining benchmark line, including base are delineated on blank；

Vertically-mounted on the base to have more supporting rods, the supporting rod is arranged at intervals, and the top of the supporting rod is consolidated Surely the rubber block for preventing half-cone nacelle blank from sliding is provided with, the thickness of the rubber block is 4mm and it is in thickness side To decrement be less than 1mm, the outer circumferential surface of half-cone nacelle blank is withstood by the rubber block of the supporting bar top, can will The half-cone nacelle blank is held up above base, is also arranged in parallel with two row rail bracketses on the base from front to back, All supporting rods install a vertical line rail between two row rail bracketses on each column rail brackets；

The upper horizontal of the vertical line rail sets a crossbeam, and the crossbeam is located above supporting rod and passes through longitudinal cunning Block is connected with vertical line rail, and the first guide rail lock for being locked on vertical line rail, institute are provided with the longitudinal sliding block State and x wire rail is installed on crossbeam, the x wire rail is vertical with vertical line rail；

The slide unit that can move back and forth along its length is installed on the x wire rail, is provided with the slide unit vertical Guideway, the secondary vertical line rail for including vertical sliding block and being vertically arranged of the vertical guide, the vertical sliding block are fixedly connected In slide unit, the bottom of the vertical line rail is connected with scriber mounting base, is also equipped with the vertical sliding block vertical for locking Line rail makes the second guide rail lock that it can not be moved up and down, and the scriber mounting base is equipped with a first through hole and two second logical Hole, the first through hole open up vertically, and described two second through holes open up horizontally towards each other, and one is inserted into the first through hole and is erected To scriber, the vertical scriber is propped up by releasable top tight pieces and is fixed in first through hole, described two second through holes In each one horizontal scriber of insertion, the tip end of two horizontal scribers is oppositely arranged, and the horizontal scriber passes through releasable top Tight part is propped up and is fixed in the second through hole；

Magnetic railings ruler is equipped with the vertical line rail and vertical line rail, is mounted on the longitudinal sliding block and vertical sliding block With the matched magnetic head of magnetic railings ruler, digital display assembly is also equipped with the slide unit, the digital display assembly includes signal and data processing Unit and display unit, the magnetic head and display unit are all connected with signal and data processing unit, the signal with data Reason unit can calculate its shift value in respective carter according to the magnetic signal that magnetic head picks up and be shown by display unit The shift value.

Wherein, the front portion of the base is equipped with a bar for being used to block half-cone nacelle blank front end face, the gear Bar is vertically arranged and its bottom be fixedly connected one can front and rear adjustment position bearing, the bearing is bolted on base On, when the bottom of the scriber mounting base abuts against the top end face of bar, the needle point of the horizontal scriber is with positioning in support plate The axial datum level for positioning the half-cone nacelle blank placed is concordant.

Further, the rear portion of the base is additionally provided with one piece of baffle for being used to block half-cone nacelle blank rear end face, The baffle is vertically arranged in above base and is fixedly connected with base.

Further, the rear portion of the base is additionally provided with one piece of down curved arc supporting bar, the arc supporting bar position Baffle is abutted against towards the side of bar, the side end face of the arc supporting bar in baffle, when the half-cone nacelle blank is pressed in After in arc supporting bar, the arc supporting bar can produce elastic bending deflection and hold the rear end periphery of half-cone nacelle blank Face.

Preferably, a rear sight base is respectively arranged with four angles of base position, is opened up vertically on the rear sight base There is scale slot, a metal ruler with a scale is inserted with the scale slot, the metal ruler can be from scale slot Middle extraction.

Wherein, the rear sight base is an aluminium alloy extrusions bar being vertically arranged, the aluminium alloy extrusions bar extrusion molding When the type hole that is formed along its length as scale slot, the metal ruler is a solid aluminum alloy bar, described solid Aluminium alloy rod is inserted in type hole and its shape of cross section matches with the shape of cross section of the type hole, the solid aluminum alloy bar Side have scale mark by laser engraving.

Preferably, the base is the crisscross frame base being formed by connecting of more aluminium section bars.

Wherein, anti-skid design plate is equipped with the frame base.

The mode of operation for delineating machining benchmark line on half-cone nacelle blank with device provided by the utility model is as follows： First half-cone nacelle blank is kept flat on supporting rod, the rubber block of supporting bar top abuts against the periphery of half-cone nacelle blank Face, holds so as to be located.The step of delineating machining benchmark line is divided into：1st, axial datum level line.2nd, rear end face is rule.

During axial datum level line, vertical line rail is first moved, adjusts the height of scriber mounting base（Shown according to digital display assembly Show the numerical value shown on window to adjust height）So that the needle point of horizontal scriber is in half-cone nacelle blank axial direction to be processed In datum level（I.e. needle point aligns with axial datum level）, then using the second guide rail lock pin vertical line rail make its can not on move down Move, then the needle point of two horizontal scribers is born against to the inner surface and the outer surface of half-cone nacelle blank siding（It is if vertical Scriber interference level scriber should then unclamp top tight pieces, then up adjust vertical scriber against half-cone nacelle blank siding Position）, and ensure that the first guide rail lock is in releasing orientation, finally promote crossbeam to be moved toward extreme direction after half-cone nacelle blank, Due to half-cone nacelle blank wall thickness is consistent and slide unit on x wire rail it is freely slidable, horizontal scriber can be always along half cone The profile level of shape nacelle blank moves backward, and depicts the mark of axial datum level in the bulkhead side of half-cone nacelle blank Remember line（The rose method of opposite side mark line is the same, repeats no more）.

When rear end face is rule, the distance that is moved backward from half-cone nacelle blank front end according to crossbeam（Digital display assembly is shown Corresponding numerical value can be shown on window）Rear end face scribing position is determined, if show what is moved from blank front end on display window backward When distance reaches 6030mm, then without promoting crossbeam backward again, it can be locked by the first guide rail pin longitudinal sliding block at this time, So that crossbeam can not be moved back and forth along vertical line rail again, top tight pieces are then unclamped, the position of horizontal scriber is adjusted, it is no longer supported Against half-cone nacelle blank siding, then unclamp the second guide rail and lock and up promote scriber mounting base so that half-cone nacelle base The siding of part is deviate from between two horizontal scribers, promotes slide unit to be moved toward half-cone nacelle blank middle afterwards, vertical line Rail moves down under scriber mounting base and its self gravitation effect, and causes the needle point of vertical scriber to abut against half-cone nacelle The inner wall of blank, promoting slide unit, vertical scriber is just after transversely line rail is moved to opposite side from the side of half-cone nacelle blank The mark line of rear end face to be processed can be depicted on the inner wall of half-cone nacelle blank.

After depicting machining benchmark line by above device, hand held cutting device is recycled to cut off half-cone along datum line Nacelle blank redundance can obtain half-cone nacelle finished product, and two half-cone nacelle finished products are spliced by hinge and fastener To together i.e. can obtain taper nacelle.Be not in because chucking power is excessive what is particularly worth mentioning is that in above-mentioned process The situation for causing half-cone nacelle blank to deform.In the case of order volume is little, with specially purchasing large-sized gantry milling machine and determining The mode of production of large-scale jig processed is compared, and is first marked machining benchmark line using the device of the utility model, is cut in conjunction with hand-held The processing method of cutting mill excision redundance material also has obviously cost advantage.

Brief description of the drawings

Fig. 1 is the front view of large-scale nonmetallic composite taper nacelle involved by the utility model；

Fig. 2 is the right view of large-scale nonmetallic composite taper nacelle involved by the utility model；

Fig. 3 is the overall structure diagram one of the utility model；

Fig. 4 is the overall structure diagram two of the utility model；

Fig. 5 is the partial enlarged view at A positions in Fig. 3；

Fig. 6 is the partial enlarged view at B positions in Fig. 3；

Fig. 7 is the partial enlarged view at C positions in Fig. 3；

Fig. 8 is the partial enlarged view at A positions in Fig. 4；

Fig. 9 is the partial enlarged view at B positions in Fig. 4；

In figure：

1 --- base 2 --- supporting rod

3 --- rubber block 4 --- rail bracketses

5 --- vertical line rail 6 --- crossbeams

7 --- longitudinal sliding block 8 --- first guide rails are locked

9 --- x wire rail 10 --- slide units

11 --- vertical sliding block 12 --- vertical line rails

13 --- scriber mounting base 14 --- second guide rails are locked

15 --- vertical scriber 16 --- horizontal scribers

17 --- digital display assembly 18 --- bars

19 --- bearing 20 --- baffles

21 --- arc supporting bar 22 --- anti-skid design plates.

Embodiment

For the ease of the understanding of those skilled in the art, the utility model is made with reference to embodiment and attached drawing further Explanation, the content that embodiment refers to not is restriction to the utility model.

In the description of the utility model, it is to be understood that term " vertical ", " longitudinal direction ", " transverse direction ", " length ", " width The instruction such as degree ", " on ", " under ", "front", "rear", "left", "right", " vertical ", " level ", " top ", " bottom ", " interior ", " outer " Orientation or position relationship are based on orientation shown in the drawings or position relationship, are for only for ease of description the utility model and simplification Description, rather than the device or element of instruction or hint meaning must have specific orientation, with specific azimuth configuration and behaviour Make, therefore it is not intended that limitation to the utility model.

In addition, term " first ", " second " are only used for description purpose, and it is not intended that instruction or hint relative importance Or the implicit quantity for indicating indicated technical characteristic.In the description of the utility model, " multiple " be meant that two or Two or more, unless otherwise specifically defined.

As shown in figs. 3-9, a kind of device for being used to delineate machining benchmark line on half-cone nacelle blank, including base 1；

Vertically-mounted on base 1 to have more supporting rods 2, supporting rod 2 is arranged at intervals, and the top of supporting rod 2 is fixedly installed For the rubber block 3 for preventing half-cone nacelle blank from sliding, the thickness of rubber block is 4mm and it is small in the decrement of thickness direction In 1mm, the outer circumferential surface of half-cone nacelle blank is withstood by the rubber block 3 on 2 top of supporting rod, can be by half-cone nacelle blank Hold up above base 1, be also arranged in parallel with two row rail bracketses 4 on base 1 from front to back, supporting rod 2 is located at two row guide rails Between stent 4, a vertical line rail 5 is installed on each column rail brackets 4；

The upper horizontal of vertical line rail 5 sets a crossbeam 6, and crossbeam 6 is located at the top of supporting rod 2 and passes through longitudinal sliding block 7 It is connected with vertical line rail 5, the first guide rail lock 8 for being locked on vertical line rail 5, crossbeam 6 is installed on longitudinal sliding block 7 On x wire rail 9 is installed, x wire rail 9 is vertical with vertical line rail 5；

The slide unit 10 that can move back and forth along its length is installed on x wire rail 9, is provided with slide unit 10 and vertically leads Rail pair, the secondary vertical line rail 12 for including vertical sliding block 11 and being vertically arranged of vertical guide, vertical sliding block 11 are fixedly connected on cunning Platform 10, the bottom of vertical line rail 12 are connected with scriber mounting base 13, are also equipped with being used for the vertical line rail of locking on vertical sliding block 11 12 make the second guide rail lock 14 that it can not be moved up and down, and scriber mounting base 13 is equipped with a first through hole and two second logical Hole, first through hole open up vertically, and two the second through holes open up horizontally towards each other, and a vertical scriber 15 is inserted into first through hole, erect Propped up and be fixed in first through hole by releasable top tight pieces to scriber 15, a level is respectively inserted into two the second through holes Scriber 16, the tip end of two horizontal scribers 16 are oppositely arranged, and horizontal scriber 16 is propped up and fixed by releasable top tight pieces In the second through hole；

Magnetic railings ruler is equipped with vertical line rail 5 and vertical line rail 12, be mounted on longitudinal sliding block 7 and vertical sliding block 11 with The matched magnetic head of magnetic railings ruler, is also equipped with digital display assembly 17 on slide unit 10, digital display assembly 17 includes signal and data processing unit And display unit, magnetic head and display unit are all connected with signal and data processing unit, signal and data processing unit can basis The magnetic signal of magnetic head pickup calculates its shift value in respective carter and shows the shift value by display unit.

The mode of operation that the device provided with above-described embodiment delineates machining benchmark line on half-cone nacelle blank is as follows： First half-cone nacelle blank is kept flat on supporting rod 2, the rubber block 3 on 2 top of supporting rod abuts against half-cone nacelle blank Outer circumferential surface, holds so as to be located.The step of delineating machining benchmark line is divided into：1st, axial datum level line.2nd, rear end face is drawn Line.

During axial datum level line, vertical line rail 12 is first moved, adjusts the height of scriber mounting base 13（It is total according to digital display The numerical value shown on into 17 display windows come adjust height）So that it is to be added that the needle point of horizontal scriber 16 is in half-cone nacelle blank In the axial datum level of work（I.e. needle point aligns with axial datum level）, then pinning vertical line rail 12 using the second guide rail lock 14 makes It can not be moved up and down, then by the needle point of two horizontal scribers 16 bear against half-cone nacelle blank siding inner surface and Outer surface（If vertical 15 interference level scriber 16 of scriber against half-cone nacelle blank siding, should unclamp top tight pieces, then past The position of the upper vertical scriber 15 of adjustment）, and ensure that the first guide rail lock 8 is in releasing orientation, crossbeam 6 is finally promoted toward half-cone cabin Extreme direction moves after body blank, due to half-cone nacelle blank wall thickness is consistent and slide unit 10 on x wire rail 9 it is freely slidable, Profile level of the horizontal meeting of scriber 16 always along half-cone nacelle blank moves backward, and in the bulkhead of half-cone nacelle blank Side depicts the mark line of axial datum level（The rose method of opposite side mark line is the same, repeats no more）.

When rear end face is rule, the distance that is moved backward from half-cone nacelle blank front end according to crossbeam 6（Digital display assembly 17 is aobvious Corresponding numerical value can be shown by showing on window）Rear end face scribing position is determined, if display is moved from blank front end on display window backward Distance when reaching 6030mm, then without promoting crossbeam 6 backward again, 8 can be locked by the first guide rail at this time by longitudinal sliding block 7 Pinning so that crossbeam 6 can not be moved back and forth along vertical line rail 5 again, then unclamp top tight pieces, adjust the position of horizontal scriber 16, It is no longer abut against half-cone nacelle blank siding, then unclamp the second guide rail lock 14 and up promote scriber mounting base 13, make The siding for obtaining half-cone nacelle blank is deviate from between two horizontal scribers 16, promotes slide unit 10 afterwards toward half-cone nacelle blank Middle is moved, and vertical line rail 12 moves down under scriber mounting base 13 and its self gravitation effect, and causes vertical scriber 15 needle point abuts against the inner wall of half-cone nacelle blank, promote slide unit 10 transversely line rail 9 from half-cone nacelle blank one After side is moved to opposite side, vertical scriber 15 will depict the mark of rear end face to be processed on the inner wall of half-cone nacelle blank Remember line.

After depicting machining benchmark line by above device, hand held cutting device is recycled to cut off half-cone along datum line Nacelle blank redundance can obtain half-cone nacelle finished product, and two half-cone nacelle finished products are spliced by hinge and fastener To together i.e. can obtain taper nacelle.Be not in because chucking power is excessive what is particularly worth mentioning is that in above-mentioned process The situation for causing half-cone nacelle blank to deform.In the case of order volume is little, with specially purchasing large-sized gantry milling machine and determining The mode of production of large-scale jig processed is compared, and is first depicted machining benchmark line on blank using the device, is cut in conjunction with hand-held Cutting mill also has obviously cost advantage along the processing method of datum line blank excision excess stock.

As shown in Figure 3 and Figure 4, a gear for being used to block half-cone nacelle blank front end face is equipped with the front portion of base 1 Bar 18, bar 18 is vertically arranged and its bottom be fixedly connected one can front and rear adjustment position bearing 19, bearing 19 passes through bolt It is fixed on base 1, when the bottom of scriber mounting base 13 abuts against the top end face of bar 18, the needle point of horizontal scriber 16 and positioning The axial datum level that the half-cone nacelle blank of placement is positioned in support plate is concordant.Anterior in base 1 sets bar 18 can be with Bring following benefit：1st, the object of reference as placement half-cone nacelle blank, while half-cone nacelle front end face is propped up, prevent it Because accident collision is moved along.2nd, easy to the height and position of definite axial datum level so that more convenient operation, work during line operation Make more efficient.

Further, as shown in Fig. 3 and Fig. 4, one piece is additionally provided with the rear portion of base 1 and is used to block half-cone nacelle blank The baffle 20 of rear end face, baffle 20 are vertically arranged in the top of base 1 and are fixedly connected with base 1.The baffle 20 can be lived with push and block The rear end face of half-cone nacelle blank, avoids because accident collision causes half-cone nacelle blank to move backward.

Further, as shown in Fig. 4 and Fig. 8, one piece of down curved arc supporting bar is additionally provided with the rear portion of base 1 21, arc supporting bar 21 is located at baffle 20 and abuts against baffle 20 towards the side of bar 18, the side end face of arc supporting bar 21, work as half cone After shape nacelle blank is pressed in arc supporting bar 21, arc supporting bar 21 can produce elastic bending deflection and hold half-cone nacelle base The rear end outer circumferential surface of part.The arc supporting bar 21 has been mainly following effect：Since half-cone nacelle blank is bulky（Particularly Length is longer）And be made of nonmetallic composite, during actual production, some blanks are possible to, because pattern maker's shrinkage is excessive, cause Length is partially short, for such a situation, first blank can be positioned in positioning support plate 5, at this time the tail of half-cone nacelle blank Side pressure lives arc supporting bar 21,21 flexural deformation of arc supporting bar and the rear end outer circumferential surface for holding half-cone nacelle blank, Ran Hou Composite resin material is filled in arc supporting bar 21, the length of half-cone nacelle blank is mended within scope of design, will with hot wind Compound resin can carry out rear end face scribing operation after curing.

Preferably, a rear sight base can also be respectively arranged with four angles of base 1 position（The rear sight base is in the accompanying drawings not Show）, scale slot is offered vertically on rear sight base, and a metal ruler with a scale is inserted with scale slot（The metal Scale is not shown in the accompanying drawings）, metal ruler can extract out from scale slot.Half-cone nacelle blank is positioned over positioning support , can be with after metal ruler is set respectively in four angles of base 1 position, it is necessary to which its top both sides is adjusted to level as far as possible when on plate 5 Operator is allowed to be intuitive to see very much the whether leveling of half-cone nacelle blank top both sides, during compared to being not provided with metal ruler With vertical 15 one-point measurement of scriber（Four points are selected to measure on half-cone nacelle blank top）Carry out the mode of operation of leveling, The working strength of worker can be substantially reduced, greatly improves work efficiency.

Wherein, foregoing rear sight base is an aluminium alloy extrusions bar being vertically arranged, edge during aluminium alloy extrusions bar extrusion molding The type hole that its length direction is formed is a solid aluminum alloy bar as scale slot, metal ruler, and solid aluminum alloy bar is inserted in In type hole and its shape of cross section matches with the shape of cross section of the type hole, and the side of solid aluminum alloy bar is carved by laser It is carved with scale mark.

Preferably, in the above-described embodiments, base 1 is the crisscross frame base being formed by connecting of more aluminium section bars.Adopt The overall weight of the device can be reduced with the crisscross frame base being formed by connecting of aluminium section bar.

Further, as shown in Fig. 3 and 4, anti-skid design plate 22 is also equipped with frame base.

Above-described embodiment is the preferable implementation of the utility model, and in addition, the utility model can be with other sides Formula is realized, any on the premise of the technical program design is not departed from obviously to replace in the protection model of the utility model Within enclosing.

In order to allow those of ordinary skill in the art more easily understand the utility model relative to the prior art improvement it Place, some attached drawings of the utility model and description have been simplified, and for the sake of clarity, present specification is omitted one A little other elements, those of ordinary skill in the art should be aware that these elements omitted also may make up the interior of the utility model Hold.

Claims (8)

1. the device for delineating machining benchmark line on half-cone nacelle blank, including base（1）, it is characterised in that：

The base（1）It is above vertically-mounted to have more supporting rods（2）, the supporting rod（2）It is arranged at intervals, the supporting rod（2） Top fixed setting be useful for preventing rubber block that half-cone nacelle blank slides（3）, the thickness of the rubber block for 4mm and It is less than 1mm in the decrement of thickness direction, passes through the supporting rod（2）The rubber block on top（3）Withstand half-cone nacelle base The outer circumferential surface of part, can hold up the half-cone nacelle blank in base（1）Top, the base（1）On also from front to back It is arranged in parallel with two row rail bracketses（4）, all supporting rods（2）Positioned at two row rail bracketses（4）Between, each column rail brackets （4）One vertical line rail of upper installation（5）；

The vertical line rail（5）Upper horizontal set a crossbeam（6）, the crossbeam（6）Positioned at supporting rod（2）Top simultaneously leads to Cross longitudinal sliding block（7）With vertical line rail（5）Connection, the longitudinal sliding block（7）On be provided with for being locked at vertical line rail （5）On the first guide rail lock（8）, the crossbeam（6）On x wire rail is installed（9）, the x wire rail（9）With vertical line rail （5）Vertically；

The x wire rail（9）On the slide unit that can move back and forth along its length is installed（10）, the slide unit（10）Upper peace Equipped with vertical guide pair, the vertical guide is secondary to include vertical sliding block（11）And the vertical line rail being vertically arranged（12）, it is described Vertical sliding block（11）It is fixedly connected on slide unit（10）, the vertical line rail（12）Bottom be connected with scriber mounting base（13）, institute State vertical sliding block（11）On be also equipped with being used for the vertical line rail of locking（12）Make the second guide rail lock that it can not be moved up and down（14）, The scriber mounting base（13）A first through hole and two the second through holes are equipped with, the first through hole opens up vertically, described Two the second through holes open up horizontally towards each other, and a vertical scriber is inserted into the first through hole（15）, the vertical scriber（15） Propped up and be fixed in first through hole by releasable top tight pieces, a horizontal scriber is respectively inserted into described two second through holes （16）, two horizontal scribers（16）Tip end be oppositely arranged, the horizontal scriber（16）Propped up by releasable top tight pieces And it is fixed in the second through hole；

The vertical line rail（5）And vertical line rail（12）On be equipped with magnetic railings ruler, the longitudinal sliding block（7）And vertical sliding block（11） On be mounted on and the matched magnetic head of magnetic railings ruler, the slide unit（10）On be also equipped with digital display assembly（17）, the digital display assembly （17）Including signal and data processing unit and display unit, the magnetic head and display unit are all connected with signal and data processing Unit, the signal and data processing unit can calculate its displacement number in respective carter according to the magnetic signal that magnetic head picks up Value simultaneously shows the shift value by display unit.

2. the device according to claim 1 for being used to delineate machining benchmark line on half-cone nacelle blank, its feature exist In：The base（1）Front portion be equipped with one and be used to block the bar of half-cone nacelle blank front end face（18）, the bar （18）Be vertically arranged and its bottom be fixedly connected one can front and rear adjustment position bearing（19）, the bearing（19）Pass through bolt It is fixed on base（1）On, the scriber mounting base（13）Bottom abut against bar（18）Top end face when, the horizontal scriber （16）Needle point with positioning support plate on position placement half-cone nacelle blank axial datum level it is concordant.

3. the device according to claim 2 for being used to delineate machining benchmark line on half-cone nacelle blank, its feature exist In：The base（1）Rear portion be additionally provided with one piece and be used to block the baffle of half-cone nacelle blank rear end face（20）, the baffle （20）It is vertically arranged in base（1）Top and and base（1）It is fixedly connected.

4. the device according to claim 3 for being used to delineate machining benchmark line on half-cone nacelle blank, its feature exist In：The base（1）Rear portion be additionally provided with one piece of down curved arc supporting bar（21）, the arc supporting bar（21）Positioned at baffle （20）Towards bar（18）Side, the arc supporting bar（21）Side end face abut against baffle（20）, when the half-cone cabin Body blank is pressed in arc supporting bar（21）After upper, the arc supporting bar（21）Elastic bending deflection can be produced and hold half-cone cabin The rear end outer circumferential surface of body blank.

5. the dress for being used to delineate machining benchmark line on half-cone nacelle blank according to any one in claim 1-4 Put, it is characterised in that：In the base（1）Four angles position be respectively arranged with a rear sight base, opened vertically on the rear sight base Equipped with scale slot, a metal ruler with a scale is inserted with the scale slot, the metal ruler can be inserted from scale Extracted out in groove.

6. the device according to claim 5 for being used to delineate machining benchmark line on half-cone nacelle blank, its feature exist In：The rear sight base is an aluminium alloy extrusions bar being vertically arranged, during the aluminium alloy extrusions bar extrusion molding along its length The type hole that direction is formed is a solid aluminum alloy bar as scale slot, the metal ruler, and the solid aluminum alloy bar is inserted In type hole and its shape of cross section matches with the shape of cross section of the type hole, and the side of the solid aluminum alloy bar passes through Laser engraving has scale mark.

7. the dress for being used to delineate machining benchmark line on half-cone nacelle blank according to any one in claim 1-4 Put, it is characterised in that：The base（1）For the crisscross frame base being formed by connecting of more aluminium section bars.

8. the device according to claim 7 for being used to delineate machining benchmark line on half-cone nacelle blank, its feature exist In：Anti-skid design plate is equipped with the frame base（22）.