CN102661700B - Detection apparatus of long stroke leading screw installation precision and application method thereof - Google Patents

Detection apparatus of long stroke leading screw installation precision and application method thereof Download PDF

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Publication number
CN102661700B
CN102661700B CN201210077977.4A CN201210077977A CN102661700B CN 102661700 B CN102661700 B CN 102661700B CN 201210077977 A CN201210077977 A CN 201210077977A CN 102661700 B CN102661700 B CN 102661700B
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China
Prior art keywords
leading screw
axis slide
guide rail
slide block
portal frame
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CN201210077977.4A
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CN102661700A (en
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孙健
栾伯才
孙高平
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Jiangsu Yangli CNC Machine Tool Co Ltd
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Jiangsu Yangli CNC Machine Tool Co Ltd
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Abstract

A detection apparatus of long stroke leading screw installation precision and an application method thereof relate to the detection apparatus of a driving leading screw of a numerical control turret punch and a numerical control laser cutting machine workbench and the application method thereof. The detection apparatus of the long stroke leading screw installation precision and the application method thereof are provided. By using the apparatus and the method of the invention, under the condition of conforming to a natural law, detection data can be accurately obtained and the product installation precision can be increased. The leading screw is flexibly connected on a rack. A pair of Y direction guide rails which is parallel to the leading screw is arranged on the rack. A leading screw nut is connected on the leading screw. The detection apparatus comprises a portal frame, an X axis guide rail, an X axis slide block, a table 1 and a table 2. The application method of the invention comprises the following steps: 1) Installing the detection apparatus on the pair of the Y direction guide rails; 2) Moving the leading screw nut to a middle position of the leading screw; 3) Overcoming deflection; 4) Detecting one end; 5) Detecting the other end; 6) Finishing.

Description

A kind of using method of pick-up unit of long stroke leading screw installation accuracy
Technical field
The present invention relates to long stroke mother lead screw line detector and using method thereof, relate in particular to pick-up unit and the using method thereof of NC turret punch machine, numerical control laser cutter worktable driving leading screw.
Background technology
The feeding table of digital control plate processing equipment, worktable adopt long stroke leading screw to drive upper beam walking, and the installation accuracy of leading screw directly determines the precision of processing.Long stroke leading screw is due to the factor of its deadweight, and middle part there will be deflection deformation, and the deflection deformation producing because conducting oneself with dignity, in the time of work, due to the reverse support effect of feed screw nut, can not form any harmful effect to complete machine operation and machining precision.But for high precision machine tool, the depth of parallelism of the axis of leading screw and both sides Y-direction guide rail requires very high, and this is also an important indicator guaranteeing machine mass.
In whole machine installation process, while detecting leading screw and both sides guide rail parallelism, the deflection deformation of leading screw can produce serious influence to testing result, makes the result detecting can not correctly reflect depth of parallelism index.Reason is that two side rails rigidity are high, and leading screw is owing to being two end supports structure, makes middle part there will be deflection deformation.Cubing is to be generally detachably connected on guide rail, and limit walking, frontier inspection are surveyed, and the Z-direction height at the two ends of leading screw side bus will be higher than middle Z-direction height, is difficult to obtain accurately the result of detection.
In association area, State Bureau in " CN201007640Y, the quick leading screw generatrix check tool of 2008.1.16. bulletin; the disclosed CN102322787A of 2012.1.16., measure new method and the special dial holder of leading screw to the bed ways depth of parallelism; " two patent documentations, disclose comparatively close technological means.Adopt the mode simultaneously leading screw top bus, side bus being detected to obtain position degree (depth of parallelism) data of bus with respect to guide rail.
The common feature of this two case is to have ignored leading screw because of the sagging distortion that amount of deflection produces, and adopts the technological means of above-mentioned two documents, and short leading screw is detected and can meet request for utilization.But during long stroke leading screw is detected, while there is certain deflection deformation amount due to long stroke leading screw, be difficult to obtain side bus parameter accurately.
Summary of the invention
The present invention is directed to above problem, provide a kind of under the prerequisite of rule that complies with the nature, can detect data by Obtaining Accurate, and then improve pick-up unit and the using method thereof of the long stroke leading screw installation accuracy of product installation accuracy.
Technical scheme of the present invention is: described leading screw is movably connected in frame, described frame is provided with a pair of Y-direction guide rail parallel with described leading screw, on described leading screw, be connected with feed screw nut, described pick-up unit comprises portal frame, X-axis guide rail, X-axis slide block, table one and table two;
Two foot sections of described portal frame are not movably connected by Y-axis slide block and described Y-direction guide rail;
Described X-axis guide rail is fixedly connected on the side of described portal frame support body, described X-axis guide rail level;
Described X-axis slide block is movably connected on described X-axis guide rail;
Described table one is removably connected on the side of described portal frame support body, the position for detection of described X-axis slide block in X-direction;
Described table two is removably connected on described X-axis slide block, for detection of the depth of parallelism between described leading screw side bus and described Y-direction guide rail.
Also comprise X-axis slide-driving device, described X-axis slide-driving device comprises Timing Belt, synchronous pulley and synchronous bracket; The end face that described synchronous pulley has is a pair of, be arranged on described portal frame support body; Described Timing Belt is arranged between described a pair of synchronous pulley; One end of described synchronous bracket is fixedly connected with described Timing Belt, the other end is fixedly connected with described X-axis slide block.
Also comprise leading screw supporting mechanism, described leading screw supporting mechanism is screw jack or hydraulic jack; For overcoming the amount of deflection of described leading screw.
Using method of the present invention, carry out according to the following steps:
1), described pick-up unit is mounted on described a pair of Y-direction guide rail;
2), described feed screw nut is moved to the centre position of described leading screw;
3), amount of deflection overcomes; Described jacking mechanism is arranged on to the below of optional position, described leading screw middle part, any side of described feed screw nut; Then utilize described table one or table two to detect the Up Highway UHW of described leading screw, by the regulating action of described leading screw supporting mechanism, until the Up Highway UHW level of described leading screw;
4), one end is detected; Described portal frame is arranged on to one end of leading screw, reconciliation statement two contacts the side bus of described leading screw, and reconciliation statement one contacts the side of described X-axis slide block simultaneously; Operate immediately described portal frame to the operation of feed screw nut direction, until arrive the end of this one end towards described feed screw nut;
5), the other end detects; Utilize described X-axis slide-driving device to drive described X-axis slide block to move toward the outer side, to dodge described feed screw nut; Then operate the other end motion of described portal frame to described leading screw, cross after described feed screw nut, utilize described X-axis slide-driving device to drive described X-axis slide block to reset, continue the distal movement towards the described other end;
6), complete.
In applied environment of the present invention, the mutual precision of a pair of Y-direction guide rail, You Qian road manufacturing procedure ensures (be mounted to respectively after frame, completing the processing of two side rails in clamped one time), this provides the guarantee of benchmark to follow-up detection.The bipod of portal frame removably connects by Y-axis slide block and both sides Y-direction guide rail respectively, is guaranteeing under the prerequisite of Y-axis slide block and guide rail quality of fit, and the portal frame verticality with respect to Y-direction guide rail in service has guarantee.
In the situation that possessing above-mentioned basis, the table two on portal frame can become detection " benchmark "; But, during due to the two ends of feed screw nut in long stroke leading screw in leading screw, be difficult to obtain the installation accuracy of leading screw, therefore when this case operates, feed screw nut is moved to the medium position of leading screw, thereby can obtain exactly the positional precision at both ends, location parameter when this installs regulating is of great importance; Like this, just need segmentation to detect.For unlikely forfeiture precision in segmentation detects, this case has increased again the table one for appraising and deciding table two reference position, so just can guarantee that the X axis coordinate position of table two in two ends are detected is consistent, and then can guarantee accuracy of detection.
In addition, the deflection deformation of leading screw is inevitable, especially when stroke is longer, deflection is larger, although this deflection can not exert an influence to machining precision, running precision, but accuracy of detection is had to larger impact, because the side bus of distortion is sagging curve in Z-axis direction, table two is difficult to obtain side bus data in continuous walking.Therefore realizing before aforementioned means, this case need be set up the step that amount of deflection overcomes, to obtain to greatest extent the depth of parallelism parameter of real side bus and guide rail.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention,
Fig. 2 is A-A cut-open view in Fig. 1,
Fig. 3 is stereoscopic-state figure of the present invention;
In figure, 1 is frame, the 2nd, and Y-direction guide rail, the 3rd, Y-axis slide block, the 4th, portal frame, the 5th, X-axis slide block, the 6th, X-axis guide rail, the 7th, lead screw shaft bearing, the 8th, leading screw, the 9th, table one, the 10th, feed screw nut, the 11st, table two, the 12nd, spindle motor seat, the 13rd, synchronizing wheel input shaft, the 14th, synchronous pulley, the 15th, Timing Belt, the 16th, synchronous bracket;
X, Y, Z georeferencing coordinate in Fig. 3, are indicated.
Embodiment
The present invention is as Figure 1-3: described leading screw 8 is movably connected in frame 1 by lead screw shaft bearing 7 and spindle motor seat 12, described frame 1 is provided with a pair of Y-direction guide rail 2 parallel with described leading screw 8, on described leading screw 8, be connected with feed screw nut 10, described pick-up unit comprises portal frame 4, X-axis guide rail 6, X-axis slide block 5, table one 9 and table two 11;
Two foot sections of described portal frame 4 are not movably connected by Y-axis slide block 3 and described Y-direction guide rail 2; It should be noted that Y-direction guide rail 2, after lathe assembling, uses as beam guideway, be to use this guide rail to detect herein;
Described X-axis guide rail 6 is fixedly connected on the side of described portal frame 4 support bodys, described X-axis guide rail 6 levels, and its guide pass is towards the direction of lead screw shaft bearing 7 or the direction of spindle motor seat 12;
Described X-axis slide block 5 is movably connected on described X-axis guide rail 6;
Described table one 9 is removably connected on the side of described portal frame 4 support bodys, the position for detection of described X-axis slide block 5 in X-direction;
Described table two 11 is removably connected on described X-axis slide block 5, for detection of the depth of parallelism between described leading screw 8 side bus and described Y-direction guide rail 2.
Also comprise X-axis slide-driving device, described X-axis slide-driving device comprises Timing Belt 15, synchronous pulley 14 and synchronous bracket 16; The end face that described synchronous pulley 14 has is a pair of, be separately positioned on described portal frame 4 support bodys; Described Timing Belt 15 is arranged between described a pair of synchronous pulley 14, parallels with X-axis guide rail 6; One end of described synchronous bracket 16 is fixedly connected with described Timing Belt 15, the other end is fixedly connected with described X-axis slide block 5.
The technological means that the present invention realizes above-mentioned X-axis slide-driving device has electronic and manual two kinds of forms, because the amplitude that drives X-axis slide block 5 to move is little, and it is less to load, adopt manual driver plate or motorized motions form at synchronizing shaft input shaft 13 places of synchronizing wheel 14.
Also comprise leading screw supporting mechanism, described leading screw supporting mechanism is screw jack or hydraulic jack; For overcoming the amount of deflection of described leading screw.
Using method of the present invention, carry out according to the following steps:
1), described pick-up unit is mounted on described a pair of Y-direction guide rail 2;
2), described feed screw nut 10 is moved to the centre position of described leading screw 8; Centre position herein not centered by point;
3), amount of deflection overcomes; Described jacking mechanism is arranged on to the below of optional position, described leading screw middle part, any side of described feed screw nut 10; Then utilize the Up Highway UHW of described table one 9 or the described leading screw 8 of table two 11 detection, by the regulating action of described leading screw supporting mechanism, until the Up Highway UHW level of described leading screw 8; " leading screw middle part " in this paragraph also not centered by point; In addition, can multiple strong points be set according to the length of leading screw;
4), one end is detected; Described portal frame 4 is arranged on to one end of leading screw 8, the side bus of the described leading screw 8 of reconciliation statement 2 11 contact, the side of the described X-axis slide block of reconciliation statement one 9 contact simultaneously; Operate immediately described portal frame to feed screw nut 10 direction operations, until arrive the end of this one end towards described feed screw nut 10; Being equivalent to spindle motor seat 12 from Fig. 1 is starting point, and the upper side of feed screw nut 10 is terminal, completes this " one end detection ";
5), the other end detects; Utilize described X-axis slide-driving device to drive (generalized case is the direction of this side of the being convenient to dodge) motion toward the outer side of described X-axis slide block 5, to dodge described feed screw nut 10; Then operate the other end motion of described portal frame 4 to described leading screw 8, cross after described feed screw nut 10, utilize described X-axis slide-driving device to drive described X-axis slide block 5 to reset, continue the distal movement towards the described other end; Being equivalent to the downside from feed screw nut 10 from Fig. 1 is starting point, and lead screw shaft bearing 7 is terminal, completes this " other end detection ";
6), complete.
The length of X-axis guide rail 6 is generally the 1/2-1/3 of portal frame 4 width, termination be located at portal frame 4 mid point or near, setting party to, determine according to operationlocation or operating personnel's custom.
The direction detecting is also determined according to testing staff's operating habit, as above-mentioned steps 4,5, is equivalent in Fig. 1 from top to bottom, also can be from bottom to top.

Claims (1)

1. the using method of the pick-up unit of one kind long stroke leading screw installation accuracy, described leading screw is movably connected in frame, described frame is provided with a pair of Y-direction guide rail parallel with described leading screw, on described leading screw, be connected with feed screw nut, described pick-up unit comprises portal frame, X-axis guide rail, X-axis slide block, table one and table two;
Two foot sections of described portal frame are not movably connected by Y-axis slide block and described Y-direction guide rail;
Described X-axis guide rail is fixedly connected on the side of described portal frame support body, described X-axis guide rail level;
Described X-axis slide block is movably connected on described X-axis guide rail;
Described table one is removably connected on the side of described portal frame support body, the position for detection of described X-axis slide block in X-direction;
Described table two is removably connected on described X-axis slide block, for detection of the depth of parallelism between described leading screw side bus and described Y-direction guide rail;
Also comprise X-axis slide-driving device, described X-axis slide-driving device comprises Timing Belt, synchronous pulley and synchronous bracket; The end face that described synchronous pulley has is a pair of, be arranged on described portal frame support body; Described Timing Belt is arranged between described a pair of synchronous pulley; One end of described synchronous bracket is fixedly connected with described Timing Belt, the other end is fixedly connected with described X-axis slide block;
Also comprise leading screw supporting mechanism, described leading screw supporting mechanism is screw jack or hydraulic jack; For overcoming the amount of deflection of described leading screw;
It is characterized in that, carry out according to the following steps:
1), described pick-up unit is mounted on described a pair of Y-direction guide rail;
2), described feed screw nut is moved to the centre position of described leading screw;
3), amount of deflection overcomes; Described leading screw supporting mechanism is arranged on to the below of optional position, described leading screw middle part, any side of described feed screw nut; Then utilize described table one or table two to detect the Up Highway UHW of described leading screw, by the regulating action of described leading screw supporting mechanism, until the Up Highway UHW level of described leading screw;
4), one end is detected; Described portal frame is arranged on to one end of leading screw, reconciliation statement two contacts the side bus of described leading screw, and reconciliation statement one contacts the side of described X-axis slide block simultaneously; Operate immediately described portal frame to the operation of feed screw nut direction, until arrive the end of this one end towards described feed screw nut;
5), the other end detects; Utilize described X-axis slide-driving device to drive described X-axis slide block to move toward the outer side, to dodge described feed screw nut; Then operate the other end motion of described portal frame to described leading screw, cross after described feed screw nut, utilize described X-axis slide-driving device to drive described X-axis slide block to reset, continue the distal movement towards the described other end;
6), complete.
CN201210077977.4A 2012-03-22 2012-03-22 Detection apparatus of long stroke leading screw installation precision and application method thereof Active CN102661700B (en)

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CN106624948A (en) * 2015-10-29 2017-05-10 安徽白鹰精密机床有限公司 Lead screw nut assembling device

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CN102330801A (en) * 2011-06-02 2012-01-25 深圳市大族激光科技股份有限公司 Method for mounting ball screw
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Publication number Priority date Publication date Assignee Title
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CN201130012Y (en) * 2007-08-30 2008-10-08 于复生 Sandwich plate flatness measuring device
CN102330801A (en) * 2011-06-02 2012-01-25 深圳市大族激光科技股份有限公司 Method for mounting ball screw
CN202083334U (en) * 2011-06-13 2011-12-21 宁夏中卫大河机床有限责任公司 Detection rod used for alignment of ball screw installation
CN102322787A (en) * 2011-08-16 2012-01-18 安阳鑫盛机床股份有限公司 Novel method for measuring leading screw to bed guide rail parallelism and special-purpose dial gauge frame
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