CN110986798B - Device and method for detecting convex-concave amount of tenon end face and wheel disc end face of compressor blade - Google Patents
Device and method for detecting convex-concave amount of tenon end face and wheel disc end face of compressor blade Download PDFInfo
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- CN110986798B CN110986798B CN201911186354.9A CN201911186354A CN110986798B CN 110986798 B CN110986798 B CN 110986798B CN 201911186354 A CN201911186354 A CN 201911186354A CN 110986798 B CN110986798 B CN 110986798B
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- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B11/00—Measuring arrangements characterised by the use of optical techniques
- G01B11/02—Measuring arrangements characterised by the use of optical techniques for measuring length, width or thickness
- G01B11/03—Measuring arrangements characterised by the use of optical techniques for measuring length, width or thickness by measuring coordinates of points
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Abstract
The invention provides a device and a method for detecting the convex-concave amount of a tenon end surface and a wheel disc end surface of a compressor blade, belonging to the technical field of compressor blade detection. The device adopts the mode of point laser + speculum to realize the detection of the blade tenon terminal surface in the narrow and small space and the convex-concave volume of rim plate terminal surface, adopts non-contact detection, has avoided the wearing and tearing or the damage to the product, has improved detection efficiency, and is convenient for through computer system to the blade assembly qualification rate real-time statistics, data analysis of like product, uses manpower sparingly and has reduced human error.
Description
Technical Field
The invention belongs to the technical field of compressor blade detection, and particularly discloses a device and a method for detecting the convex-concave amount of a tenon end face and a wheel disc end face of a compressor blade.
Background
The assembly precision of the compressor blade tenon directly influences the assembly performance of an engine, and after the tenon is assembled, the end face of the tenon is possibly higher or lower than the wheel disc face, so that whether the height difference between the wheel disc face and the end face of the tenon meets the requirements of customers needs to be measured. Because the detection position is a narrow and long space and the detection point is special, the existing detection method can only qualitatively judge whether the convex-concave quantity is proper or not by detecting through a caliper, removing the plug through a feeler gauge or observing through naked eyes, the error is large, and the time for detecting a product is long. In recent years, with the increase of the production quantity of the gas compressors, the actual value detection, data recording and detection efficiency of the assembling precision of each tenon of each group of wheel discs of each gas compressor are very important, and the existing measuring tool detection or visual observation can not meet the requirements of customers.
Disclosure of Invention
The invention aims to provide a device and a method for detecting the convex-concave amount of the end face of a blade tenon of a gas compressor and the end face of a wheel disc, which can simplify the detection process of the convex-concave amount of the end face of the blade tenon of the gas compressor and the end face of the wheel disc and improve the detection precision and the working efficiency.
In order to achieve the purpose, the invention provides a device for detecting the convex-concave amount of the tenon end surface and the wheel disc end surface of a compressor blade, which comprises a computer system, a point laser detection assembly and a driving assembly, wherein the point laser detection assembly is used for detecting the convex-concave amount of the tenon end surface and the wheel disc end surface of each group of blades of a product, and the driving assembly is used for being connected with a first end shaft of the product to drive the product to rotate; the point laser detection assembly comprises a first sliding mechanism, a point laser supporting seat, a point laser mounting seat, a transmission rack fixing mechanism, a transmission rack adjusting mechanism, a point laser displacement sensor and a reflector; the sliding direction of the first sliding mechanism is parallel to the axial direction of the product; the point laser supporting seat is arranged on the first sliding mechanism; the point laser mounting seat is arranged on the point laser supporting seat; the transmission rack fixing mechanism comprises a transmission rack fixing seat, a locking rod and a locking block, wherein two ends of the transmission rack fixing seat are rotatably installed in installation lugs on two sides of the point laser installation seat; the locking block is provided with a locking groove for being attached to the transmission rack; the transmission rack adjusting mechanism comprises a gear mounting seat fixed on the transmission rack fixing seat, a transmission gear transmission shaft penetrating into the gear mounting seat and a transmission gear arranged on the transmission gear transmission shaft; the transmission rack penetrates through the mounting lugs, the gear mounting seat and the transmission rack fixing seat on two sides of the point laser mounting seat, is meshed with the transmission gear, and is rotatably connected with a connecting rod towards the end part of a product; the connecting rod is provided with a connecting plate; the point laser displacement sensor and the reflector are installed on the connecting plate, the reflector is used for reflecting the detection line emitted by the point laser displacement sensor to the tenon end face and the wheel disc end face, and the detection data of the point laser displacement sensor is received and displayed by the computer system.
Further, the point laser detection assembly also comprises a point laser height adjusting mechanism and/or a point laser angle adjusting mechanism; the point laser height adjusting mechanism comprises a height adjusting sheet arranged on the point laser supporting seat and positioned below the point laser mounting seat and a height adjusting bolt penetrating through the height adjusting sheet and inserted into the point laser mounting seat; the point laser mounting seat is connected with a strip-shaped hole of the point laser supporting seat through a bolt; the rod body of the height adjusting bolt above the height adjusting sheet is sleeved with an adjusting nut;
the point laser angle adjusting mechanism comprises an angle control pin and an angle locking bolt; arc-shaped limiting grooves and locking screw holes are respectively formed in the mounting lugs on the two sides of the point laser mounting seat; the arc-shaped limiting groove is parallel to the end part of the transmission rack fixing seat, and the angle control pin penetrates through the arc-shaped limiting groove and is inserted into the transmission rack fixing seat; the locking screw hole is perpendicular to the end of the transmission rack fixing seat, and the angle locking bolt penetrates through the locking screw hole and abuts against the transmission rack fixing seat.
Further, the first sliding mechanism comprises a first guide rail, a first sliding block matched with the first guide rail, a fine adjustment rack arranged on the side surface of the first guide rail, a fine adjustment gear transmission shaft penetrating through the first sliding block and a fine adjustment gear arranged on the fine adjustment gear transmission shaft; the fine adjustment gear is meshed with the fine adjustment rack; the point laser supporting seat is arranged on the first sliding block.
Furthermore, the device for detecting the convex-concave amount of the tenon end surface and the disk end surface of the compressor blade also comprises counting photoelectric sensors which are arranged along the axial direction of a product and correspond to a plurality of groups of blades of the product one by one; the first sliding block is provided with a photoelectric sensing sheet for counting; the signal of the photoelectric sensor for counting is received by a computer system.
Furthermore, the driving assembly comprises a second sliding mechanism, a motor mounting seat arranged on the second sliding mechanism, a motor arranged on the motor mounting seat and an external spline connecting sleeve arranged on a first end shaft of a product; a reducer is arranged on an output shaft of the motor; an electromagnetic clutch base body is arranged on an output shaft of the speed reducer; and the outer spline connecting sleeve is provided with an electromagnetic clutch flange matched with the electromagnetic clutch base body.
Furthermore, the device for detecting the convex-concave amount of the tenon end face and the wheel disc end face of the compressor blade further comprises a driven carrier roller assembly and a driving carrier roller assembly which are positioned at two ends of a product; the driven carrier roller assembly comprises a driven carrier roller mounting seat, a driven carrier roller bracket and a driven carrier roller; the driven carrier roller bracket is fixed on the driven carrier roller mounting seat, and the upper end surface of the driven carrier roller bracket is a V-shaped surface; the two driven carrier rollers are rotatably arranged on two sides of the V-shaped surface and used for supporting a first end shaft of a product; the driving carrier roller assembly comprises a driving carrier roller mounting seat, a driving carrier roller bracket and a driving carrier roller; the driving carrier roller supports are connected with strip-shaped holes in the driving carrier roller mounting seat through bolts, the two driving carrier roller supports are connected through spacing adjusting bolts, and the upper end surfaces of the two driving carrier roller supports are arranged in a V shape; the two driving carrier rollers are respectively and rotatably arranged on the two driving carrier roller supports and are used for supporting second end shafts of products.
Furthermore, the device for detecting the convex-concave amount of the tenon end face and the disk end face of the compressor blade also comprises an axial anti-moving assembly which is used for abutting against a second end shaft of a product to prevent the product from moving axially; the axial anti-channeling component comprises a third sliding mechanism, a side-push bracket arranged on the third sliding mechanism, a self-aligning bearing arranged on the side-push bracket and a side-push guide shaft connected with an inner ring of the self-aligning bearing; and a disc used for abutting against the second end shaft of the product is arranged on the side-push guide shaft.
Furthermore, the device for detecting the convex-concave amount of the tenon end surface and the wheel disc end surface of the compressor blade also comprises an axial coarse positioning component; the axial coarse positioning component comprises a positioning frame and a baffle plate arranged at the top of the positioning frame through a connecting column; the connecting column is sleeved with a buffer spring; the side-push guide shaft can pass through the positioning frame; the baffle is located the top of initiative bearing roller support.
Furthermore, the device for detecting the convex-concave amount of the tenon end surface and the wheel disc end surface of the compressor blade also comprises a photoelectric sensing assembly for resetting; the photoelectric sensing assembly for resetting comprises a first photoelectric sensor for resetting arranged on the point laser mounting seat, a first photoelectric sensing piece for resetting arranged on the transmission rack, a second photoelectric sensing piece for resetting arranged on the motor mounting seat, a second photoelectric sensor for resetting arranged on the rack, a third photoelectric sensing piece for resetting arranged on the side push bracket and a third photoelectric sensor for resetting arranged on the rack; signals of the first reset photoelectric sensor, the second reset photoelectric sensor and the third reset photoelectric sensor are all received by the computer system.
The invention also provides a method for detecting the convex-concave amount of the tenon end face and the wheel disc end face of the compressor blade, which comprises the following steps:
the method comprises the following steps of firstly, selecting an auxiliary journal on a rotor spindle as a reference for measuring and establishing a cylindrical coordinate system, wherein the establishing steps are as follows:
s1, selecting a journal close to the blade mounting disk as a measuring object;
s2, respectively measuring the end face of the journal close to one side of the wheel disc and the outer cylindrical surface to obtain corresponding point data;
s3, performing plane fitting on the measured point data of the end face of the journal to obtain a ro theta plane;
s4, projecting the measurement point data of the outer cylindrical surface of the shaft neck to the ro theta plane obtained by fitting in the step S3, and performing circle fitting on the projection points, wherein the circle center is the origin o of the coordinate system;
s5, the positive direction of the z axis is taken as a wheel disc for installing blades to point to the rotor;
s6, setting an original zero position with a vertical direction as a theta rotation angle;
the second step is that: extraction and error analysis of geometrical characteristics of tenon end face and wheel disc end face
S1, measuring the blade tenon end face and the rotor wheel disc end face at the same side by using the convex-concave amount detection device for the compressor blade tenon end face and the wheel disc end face to obtain two groups of point data,
s2, performing plane fitting on the wheel disc end surface measurement point data to obtain a wheel disc end surface;
and S3, calculating the distance between the tenon end face measuring point and the wheel disc end face to obtain the axial assembly error of the blade.
Compared with the prior art, the invention has the following beneficial effects.
The original detection mode is contact detection, abrasion or damage can be caused to products, the condition of manual false detection exists, the detection period is long and is about 1 piece/day, and the detection difficulty is higher under the condition of smaller space. The device for detecting the convex-concave amount of the end face of the blade tenon of the compressor and the end face of the wheel disc provided by the invention realizes the detection of the convex-concave amount of the end face of the blade tenon and the end face of the wheel disc in a narrow space by adopting a point laser and a reflector, avoids the abrasion or damage to products by adopting non-contact detection, improves the detection efficiency, has the existing detection efficiency of 1 per hour, is convenient for carrying out real-time statistics and data analysis on the assembly qualification rate of the blades of the same type of products by a computer system, saves manpower and reduces human errors.
Drawings
Fig. 1 is a schematic working diagram of a device for detecting the convex-concave amount of a tenon end face and a disk end face of a compressor blade provided in embodiment 1;
FIG. 2 is a schematic view of the apparatus of FIG. 1 without the baffle installed;
FIG. 3 is a schematic view of the device of FIG. 2 without the product installed;
FIG. 4 is a schematic structural diagram of a point laser detection assembly in the apparatus shown in FIG. 3;
FIG. 5 is another side view of the spot laser inspection assembly of FIG. 4;
FIG. 6 is an assembly view of a portion of the components of the spot laser inspection assembly shown in FIG. 3;
FIG. 7 is an assembly view of a drive rack mounting block and a drive rack adjustment mechanism of the spot laser inspection assembly of FIG. 3;
FIG. 8 is an assembly view of the locking bar and locking block of the spot laser inspection assembly of FIG. 3;
FIG. 9 is a schematic view of a drive assembly of the apparatus of FIG. 3;
fig. 10 is a schematic view of the construction of a driven idler assembly in the apparatus of fig. 3;
fig. 11 is a schematic structural view of a driving idler assembly in the apparatus of fig. 3;
FIG. 12 is a schematic view of an axial anti-play assembly in the device of FIG. 3;
FIG. 13 is a schematic view of the axial coarse positioning assembly of the apparatus shown in FIG. 3.
In the figure: 100-the product is prepared by the following steps of,
200-point laser detection component, 201-point laser support seat, 202-point laser installation seat and 202.1-arc limiting groove; 202.2-locking screw holes; 203-driving rack, 204-point laser displacement sensor, 205-reflector, 206-driving rack fixing seat, 207-locking rod, 208-locking block, 209-gear mounting seat, 210-driving gear driving shaft, 211-connecting rod, 212-connecting plate, 213-height adjusting sheet, 214-angle control pin, 215-first guide rail, 216-first sliding block, 217-fine adjusting rack, 218-fine adjusting gear driving shaft, 219-fine adjusting gear, 220-drag chain,
300-driving component, 301-motor mounting base, 302-motor, 303-external spline connecting sleeve, 304-reducer, 305-electromagnetic clutch base, 306-electromagnetic clutch flange, 307-second guide rail, 308-second slide block,
401-photoelectric sensor for counting, 402-photoelectric sensing sheet for counting, 403-sensor mounting plate,
501-driven carrier roller component, 501.1-driven carrier roller mounting seat, 501.2-driven carrier roller bracket, 501.3-driven carrier roller, 502-driving carrier roller component, 502.1-driving carrier roller mounting seat, 502.2-driving carrier roller bracket, 502.3-driving carrier roller and 502.4-spacing adjusting bolt,
600-axial anti-channeling component, 601-side push bracket, 602-side push guide shaft, 603-self-aligning bearing mounting sleeve, 604-self-aligning bearing gland, 605-third guide rail, 606-third slide block,
700-axial coarse positioning component, 701-positioning frame, 702-connecting column, 703-baffle,
800-frame, 801-baffle, 802-limit piece, 803-button box,
901-a first reset photoelectric sensor, 902-a first reset photoelectric sensing piece, 903-a second reset photoelectric sensing piece, 904-a second reset photoelectric sensor, 905-a third reset photoelectric sensing piece, and 906-a third reset photoelectric sensor.
Detailed Description
Example 1
The embodiment provides a device for detecting the convex-concave amount of the tenon end surface and the disk end surface of a compressor blade, which comprises a computer system, a point laser detection assembly 200 for detecting the convex-concave amount of the tenon end surface and the disk end surface of each group of blades of a product 100, and a driving assembly 300 for connecting with a first end shaft of the product 100 to drive the product 100 to rotate; the point laser detection assembly 200 comprises a first sliding mechanism, a point laser supporting seat 201, a point laser mounting seat 202, a transmission rack 203, a transmission rack fixing mechanism, a transmission rack adjusting mechanism, a point laser displacement sensor 204 and a reflector 205; the sliding direction of the first sliding mechanism is parallel to the axial direction of the product 100; the point laser supporting seat 201 is arranged on the first sliding mechanism; the point laser mounting base 202 is arranged on the point laser supporting base 201; the transmission rack fixing mechanism comprises a transmission rack fixing seat 206, a locking rod 207 and a locking block 208, wherein two ends of the transmission rack fixing seat are rotatably arranged in mounting lugs on two sides of the point laser mounting seat 202; the locking block 208 is provided with a locking groove for attaching with the transmission rack 203; the transmission rack adjusting mechanism comprises a gear mounting seat 209 fixed on the transmission rack fixing seat 206, a transmission gear transmission shaft 210 penetrating into the gear mounting seat 209 and a transmission gear arranged on the transmission gear transmission shaft 210; the transmission rack 203 penetrates through mounting lugs on two sides of the point laser mounting base 202, the gear mounting base 209 and the transmission rack fixing base 206, is meshed with a transmission gear, and is rotatably connected with a connecting rod 211 facing the end of a product; the connecting rod 211 is provided with a connecting plate 212; the point laser displacement sensor 204 and the reflector 205 are installed on the connecting plate 212, the reflector 205 is used for reflecting the detection line emitted by the point laser displacement sensor 204 to the tenon end face and the wheel disc end face, and the detection data of the point laser displacement sensor 204 is received and displayed by the computer system.
The point laser supporting seat 201 is driven by the first sliding mechanism to move axially along the product 100, so as to ensure that the point laser displacement sensor 204 and the reflector 205 are aligned with a certain blade in the product, thereby realizing the axial positioning of the point laser, the transmission rack 203 is directly pushed or the transmission gear transmission shaft 210 is rotated to drive the transmission rack 203 to move through the transmission gear (at this time, the locking block 208 is separated from the transmission rack 203), the connecting rod 211 is rotated to perform radial positioning, the reading of the display screen on the point laser displacement sensor 204 is observed in the positioning process until the point laser is an effective reading, the locking rod 207 is pressed down or lifted up to lock the transmission rack 203 (in the embodiment, the locking rod 207 is in threaded connection with the transmission rack fixing seat 206), the computer system starts to receive, display and store the detection data of the point laser displacement sensor 204, the driving assembly 300 drives the product 100 to rotate, the point laser detection assembly 200 sequentially measures the convex-concave amount of the tenon end face and the wheel disc end face in the same group of blades, after one group is completed, the moving point laser inspection assembly 200 performs the measurement of the next group of blades. The spot laser displacement sensor 204 is large in size, and can obtain a reading only within an effective stroke (for example, the effective stroke of the spot laser displacement sensor 204 adopted in this embodiment is 40-60 mm), so that the spot laser displacement sensor is difficult to directly enter a narrow space between two adjacent groups of blades for measurement, and the detection line is reflected by the reflector 205, so that the detection of the convex-concave amount of the blade tenon end face and the wheel disc end face in the narrow space is realized.
Further, the point laser detection assembly 200 further includes a point laser height adjustment mechanism and/or a point laser angle adjustment mechanism; the point laser height adjusting mechanism comprises a height adjusting sheet 213 which is arranged on the point laser supporting seat 201 and is positioned below the point laser mounting seat 202, and a height adjusting bolt which penetrates through the height adjusting sheet 213 and is inserted into the point laser mounting seat 202; the point laser mounting base 202 is connected with a strip-shaped hole of the point laser supporting base through a bolt; the rod body of the height adjusting bolt above the height adjusting sheet is sleeved with an adjusting nut; the point laser angle adjusting mechanism comprises an angle control pin 214 and an angle locking bolt; arc-shaped limiting grooves 202.1 and locking screw holes 202.2 are respectively arranged on mounting lugs on two sides of the point laser mounting base 202; the arc-shaped limiting groove 202.1 is parallel to the end of the transmission rack fixing seat 206, and the angle control pin 214 passes through the arc-shaped limiting groove 202.1 and is inserted into the transmission rack fixing seat 206; the locking screw 202.2 is perpendicular to the end of the drive rack mount 206, and the angle locking bolt passes through the locking screw and abuts against the drive rack mount 206.
The working principle of the point laser height adjusting mechanism is as follows: the adjusting nut is rotated to adjust the length of the height adjusting bolt between the point laser mounting seat 202 and the height adjusting sheet 213, so that the point laser mounting seat 202 can move up and down in the bar-shaped hole of the point laser supporting seat, and meanwhile, the reading of the display screen on the observation point laser displacement sensor 204 is effectively read to the point laser, and the height adjustment of the point laser is completed.
The working principle of the point laser angle adjusting mechanism is as follows: the transmission rack fixing seat 206 is pulled, the angle control pin 214 moves in the arc-shaped limiting groove, meanwhile, the reading of a display screen on the observation point laser displacement sensor 204 is effectively read, the angle locking bolt penetrates through the locking screw hole and abuts against the transmission rack fixing seat 206, and the angle of the laser is fixed.
Further, the first sliding mechanism includes a first guide rail 215, a first slider 216 engaged with the first guide rail 215, a fine adjustment rack 217 disposed on a side surface of the first guide rail 215, a fine adjustment gear transmission shaft 218 penetrating through the first slider 216, and a fine adjustment gear 219 disposed on the fine adjustment gear transmission shaft 218; the fine-tuning gear 219 is meshed with the fine-tuning rack 217; the spot laser supporting base 201 is arranged on the first slide block 216. After the point laser supporting seat 201 is axially positioned under the driving of the first sliding mechanism, the fine-tuning gear transmission shaft 218 can be rotated, so that the fine-tuning rack 217 drives the point laser supporting seat 201 to perform more accurate positioning. The first guide rail 216 and the first slider 216 have a self-locking function.
The matching of the transmission rack 203 and the transmission gear, the matching of the fine adjustment rack 217 and the fine adjustment gear 219, and the setting of the point laser height adjusting mechanism and the point laser angle adjusting mechanism are all for accurately adjusting the position of the detection line of the point laser displacement sensor 204, so that the detection precision is improved.
Further, the point laser detection assembly 200 further comprises a drag chain 220, the drag chain 220 is arranged along the first guide rail 215 and passes through a drag chain fixing plate on the point laser supporting seat 201, and a cable of the point laser displacement sensor 204 is led out through the drag chain 220 to be connected with a computer system.
Further, the device for detecting the convex-concave amount of the tenon end surface and the disk end surface of the compressor blade also comprises counting photoelectric sensors 401 which are arranged along the axial direction of the product 100 and correspond to a plurality of groups of blades of the product one by one; the first slider 218 is provided with a photoelectric sensing sheet 402 for counting; the signal of the photoelectric sensor 401 for counting is received by the computer system. When the point laser detection assembly 200 is aligned with a certain group of blades, the corresponding photoelectric sensor 401 for counting detects the photoelectric sensing sheet 402 for counting, the serial number of the group of blades is displayed on a computer system, and the automatic counting and recording of the group number of the blades are realized.
Further, the driving assembly 300 comprises a second sliding mechanism, a motor mounting seat 301 arranged on the second sliding mechanism, a motor 302 arranged on the motor mounting seat 301, and an external spline connecting sleeve 303 arranged on the first end shaft of the product 100; a reducer 304 is mounted on an output shaft of the motor 301; an electromagnetic clutch base body 305 is mounted on an output shaft of the speed reducer 304; the external spline connecting sleeve 303 is provided with an electromagnetic clutch flange 306 matched with the electromagnetic clutch base 305. The outer spline connecting sleeve 303 is arranged on an outer spline of the first end shaft of the product 100, the motor mounting base 301 is pushed towards the first end shaft of the product 100 until the electromagnetic clutch flange 306 is completely attached to the electromagnetic clutch base 305, the electromagnetic clutch is started, the electromagnetic clutch flange 306 is attracted to the electromagnetic clutch base 305, the motor 302 is started, and the product 100 rotates according to the preset rotating speed of the computer system. The second sliding mechanism is a second guide rail 307 and a second slider 308 having a locking function.
Further, the device for detecting the convex-concave amount of the tenon end face and the disk end face of the compressor blade further comprises a driven carrier roller assembly 501 and a driving carrier roller assembly 502 which are positioned at two ends of the product 100; the driven idler assembly 501 comprises a driven idler mounting seat 501.1, a driven idler bracket 501.2 and a driven idler 501.3; the driven carrier roller bracket 501.2 is fixed on the driven carrier roller mounting seat 501.1, and the upper end surface is a V-shaped surface; the two driven carrier rollers 501.3 are rotatably arranged on two sides of the V-shaped surface and used for supporting a first end shaft of the product 100; the driving idler assembly 502 comprises a driving idler mount 502.1, a driving idler bracket 502.2 and a driving idler 502.3; the driving carrier roller supports 502.2 are connected with strip-shaped holes in the driving carrier roller mounting seat 502.1 through bolts, the two driving carrier roller supports 502.2 are connected through spacing adjusting bolts 502.4, and the upper end surfaces of the two driving carrier roller supports 502.2 are arranged in a V shape; the two driving idler rollers 502.3 are respectively rotatably arranged on the two driving idler brackets 502.2 and used for supporting the second end shafts of the products 100. By rotating the nuts on the spacing adjusting bolts 502.4, the rod distance of the spacing adjusting bolts 502.4 between the two driving carrier roller brackets 502.2 is adjusted, so that the spacing between the two driving carrier roller brackets 502.2 is adjusted to adapt to products 100 with different shaft diameters.
Further, the device for detecting the convex-concave amount of the tenon end surface and the disk end surface of the compressor blade further comprises an axial anti-shifting assembly 600 which is used for abutting against a second end shaft of the product 100 to prevent the product from shifting axially; the axial anti-shifting assembly 600 comprises a third sliding mechanism, a side pushing bracket 601 arranged on the third sliding mechanism, a self-aligning bearing arranged on the side pushing bracket 601 and a side pushing guide shaft 602 connected with an inner ring of the self-aligning bearing; the side push guide shaft 602 is provided with a disc for abutting against the second end shaft of the product 100. The self-aligning bearing is mounted on the side-push bracket 601 through the self-aligning bearing mounting sleeve 603, the self-aligning bearing gland 604 and the bolt, and the side-push guide shaft 602 passes through the self-aligning bearing gland 604. The third sliding mechanism is a third guide rail 605 and a third slider 606 having a locking function.
Further, the device for detecting the convex-concave amount of the tenon end face and the wheel disc end face of the compressor blade further comprises an axial coarse positioning assembly 700; the axial coarse positioning assembly 700 comprises a positioning frame 701 and a baffle 703 mounted on the top of the positioning frame 701 through a connecting column 702; a buffer spring is sleeved on the connecting column 702; the side push guide shaft 602 can pass through the positioning frame 701; the baffle 703 is located above the drive idler holder 502.2. The axial coarse positioning assembly 700 plays a role in coarse positioning in the process of hoisting the product 100 onto the driven idler assembly 501 and the driving idler assembly 502, and simultaneously prevents the product 100 from colliding with the driving idler assembly 502.
Further, the device for detecting the convex-concave amount of the tenon end face and the disk end face of the compressor blade further comprises a frame 800, and the point laser detection assembly 200, the driving assembly 300, the driven carrier roller assembly 501, the driving carrier roller assembly 502, the axial anti-shifting assembly 600 and the axial coarse positioning assembly 700 are all mounted on the frame 800. A sensor mounting plate 403 parallel to the first guide rail 217 is attached to the frame 800, and a photoelectric sensor 401 for mounting count is attached to the sensor mounting plate. The edge of the frame 800 is also fitted with a baffle 801. Both ends of the first sliding mechanism, the second sliding mechanism and the third sliding mechanism are provided with limiting pieces 802.
Furthermore, the device for detecting the convex-concave amount of the tenon end surface and the wheel disc end surface of the compressor blade also comprises a photoelectric sensing assembly for resetting; the photoelectric sensing assembly for resetting comprises a first photoelectric sensor for resetting 901 arranged on the point laser mounting seat 202, a first photoelectric sensing piece for resetting 902 arranged on the transmission rack 203, a second photoelectric sensing piece for resetting 903 arranged on the motor mounting seat 301, a second photoelectric sensor for resetting 904 arranged on the rack 800, a third photoelectric sensing piece for resetting 905 arranged on the side push bracket 601 and a third photoelectric sensor for resetting 906 arranged on the rack 800; signals of the first reset photoelectric sensor 901, the second reset photoelectric sensor 904, and the third reset photoelectric sensor 906 are received by a computer system. When the product 100 is hoisted, the transmission rack 203, the motor mounting seat 301 and the side push bracket 601 are all required to be in an initial state, namely, the transmission rack 203 is retracted to the shortest, the motor mounting seat 301 and the side push bracket 601 are both positioned at the outermost ends, at the moment, the photoelectric sensors 901 for resetting, 904 for resetting and 906 for resetting are used for resetting correspondingly to detect the photoelectric sensing piece for resetting so as to ensure that the product 100 cannot touch the point laser detection assembly 200, the driving assembly 300 and the axial anti-moving assembly 600, after the detection is finished, the transmission rack 203, the motor mounting seat 301 and the side push bracket 601 are all required to be in a reset state, and the computer system displays that the product 100 can be moved only after the resetting is successful. When the point laser detection assembly 200 detects that one set of blades has moved to the next, the drive rack 203 also resets.
Further, the photoelectric sensor for counting 401, the second photoelectric sensor for resetting 904, and the third photoelectric sensor for resetting 906 are all groove-shaped photoelectric sensors.
Example 2
The working process of the device for detecting the convex-concave amount of the tenon end face and the wheel disc end face of the compressor blade is as follows.
The first step is as follows: product 100 hoisting
The approximate axial position of the product 100 is determined by the axial coarse positioning assembly 700-baffle 703 by using a crane to hoist the product and placing the product vertically downward from the top of the device onto the designated positions of the driven idler assembly 501 and the driving idler assembly 502.
The hoisting of the product 100 needs to meet the following conditions:
1. the driving assembly 300 and the axial anti-shifting assembly 600 are both in an initial state, and are triggered by corresponding groove-shaped photoelectric sensors;
2. the point laser detection assembly 200 is in the origin position, and the transmission rack 203 is in the reset state.
The second step is that: the computer system enters a product number.
The third step: the drive assembly 300 and the axial anti-play assembly 600 are connected with the product
1. Pushing the side push bracket 601 until the side push guide shaft 602 is attached to the second end shaft of the product 100, and locking the position of the side push bracket 601 fixed by the third sliding mechanism;
2. the external spline connecting sleeve 303 is taken down from the fixed support, and after the external spline connecting sleeve 303 is manually installed on the first end shaft external spline of the product 100, the motor mounting base 301 is pushed until the electromagnetic clutch base body 305 is completely attached to the electromagnetic clutch flange 306;
3. the pull-in button on the button box 803 is pressed, the electromagnetic pull-in device pulls in, and the driving motor 302 can simultaneously drive the external spline connecting sleeve 303 and the product 100 to rotate.
The fourth step: adjustment of spot laser moving assembly 200
1. Point laser axial coarse positioning: horizontally pulling the point laser supporting seat 201 to a corresponding blade detection position, triggering a corresponding photoelectric sensor, and automatically recording a corresponding wheel disc number by a computer system;
2. radial positioning of point laser: the transmission gear shaft 211 is manually rotated, the transmission rack 203 moves towards the product, and the transmission rack 203 is locked when the laser reaches the blade detection position.
3. And (3) carrying out axial fine positioning on the point laser: the observation point laser displacement sensor 204 displays screen reading, and simultaneously, after the fine adjustment gear transmission shaft 220 is rotated until point laser is effective reading, the horizontal position of the first sliding mechanism fixed point laser moving assembly 200 is locked;
4. adjusting the initial position of the laser point of the point laser displacement sensor 204: whether a laser point is shot on the end face of the wheel disc or not needs to be observed, if the initial position of the point laser is not on the wheel disc, the automatic/manual button of the control motor 302 on the button box 803 needs to be rotated manually, the forward rotation button or the reverse rotation button is pressed, the laser is shot on the wheel disc position manually, and the automatic/manual button on the button box 803 is rotated automatically.
The fifth step: automatic detection
Pressing an automatic button, controlling the product 100 to rotate by controlling the operating speed of products at different stations by the upper computer in a configuration mode through the automatic station identification function of the computer, analyzing data and displaying the data by the computer in real time through an algorithm, stopping the rotation of the product if unqualified positions are found, manually marking unqualified assembled blades at the moment, pressing a continuous button on the computer, and continuously detecting until all the blades in the group are detected completely;
analyzing, displaying and storing real-time data of a computer: the computer analyzes the data in real time through an algorithm and displays the data through a display.
And a sixth step: point laser longitudinal reposition
The locking lever 207 is released, the gear drive shaft 211 is manually driven, and the gear rack 203 moves back to the initial position.
The seventh step: and repeating the operation until all the groups of blades are detected.
Eighth step: product forklift unloading
The conditions required to be met for discharging are as follows:
1. the driving assembly 300 and the axial anti-shifting assembly 600 are both in an initial state, and are triggered by corresponding groove-shaped photoelectric sensors;
2. the point laser detection assembly 200 is in the origin position, and the transmission rack 203 is in the reset state.
Example 3
The embodiment provides a method for detecting the convex-concave amount of a tenon end surface and a wheel disc end surface of a compressor blade, which comprises the following steps:
the method comprises the following steps of firstly, selecting an auxiliary journal on a rotor spindle as a reference for measuring and establishing a cylindrical coordinate system, wherein the establishing steps are as follows:
s1, selecting a journal close to the blade mounting disk as a measuring object;
s2, respectively measuring the end face of the journal close to one side of the wheel disc and the outer cylindrical surface to obtain corresponding point data;
s3, performing plane fitting on the measured point data of the end face of the journal to obtain a ro theta plane;
s4, projecting the measurement point data of the outer cylindrical surface of the shaft neck to the ro theta plane obtained by fitting in the step S3, and performing circle fitting on the projection points, wherein the circle center is the origin o of the coordinate system;
s5, the positive direction of the z axis is taken as a wheel disc for installing blades to point to the rotor;
s6, setting an original zero position with a vertical direction as a theta rotation angle;
the second step is that: extraction and error analysis of geometrical characteristics of tenon end face and wheel disc end face
S1, measuring the blade tenon end face and the rotor disk end face on the same side by using the convex-concave amount detection device for the compressor blade tenon end face and the disk end face in the embodiment 1 to obtain two groups of point data,
s2, performing plane fitting on the wheel disc end surface measurement point data to obtain a wheel disc end surface;
and S3, calculating the distance between the tenon end face measuring point and the wheel disc end face to obtain the axial assembly error of the blade.
The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, or direct or indirect applications in other related fields, which are made by the contents of the present specification, are included in the scope of the present invention.
Claims (9)
1. A compressor blade tenon end surface and wheel disc end surface convex-concave amount detection device is characterized by comprising a computer system, a point laser detection assembly and a driving assembly, wherein the point laser detection assembly is used for detecting the convex-concave amounts of the tenon end surface and the wheel disc end surface in each group of blades of a product, and the driving assembly is used for being connected with a first end shaft of the product to drive the product to rotate;
the point laser detection assembly comprises a first sliding mechanism, a point laser supporting seat, a point laser mounting seat, a transmission rack fixing mechanism, a transmission rack adjusting mechanism, a point laser displacement sensor and a reflector;
the sliding direction of the first sliding mechanism is parallel to the axial direction of the product;
the point laser supporting seat is arranged on the first sliding mechanism;
the point laser mounting seat is arranged on the point laser supporting seat;
the transmission rack fixing mechanism comprises a transmission rack fixing seat, a locking rod and a locking block, wherein two ends of the transmission rack fixing seat are rotatably installed in installation lugs on two sides of the point laser installation seat;
the locking block is provided with a locking groove for being attached to the transmission rack;
the transmission rack adjusting mechanism comprises a gear mounting seat fixed on the transmission rack fixing seat, a transmission gear transmission shaft penetrating into the gear mounting seat and a transmission gear arranged on the transmission gear transmission shaft;
the transmission rack penetrates through the mounting lugs, the gear mounting seat and the transmission rack fixing seat on two sides of the point laser mounting seat, is meshed with the transmission gear, and is rotatably connected with a connecting rod towards the end part of a product;
the connecting rod is provided with a connecting plate;
the point laser displacement sensor and the reflector are arranged on the connecting plate, the reflector is used for reflecting the detection line emitted by the point laser displacement sensor to the end face of the tenon and the end face of the wheel disc, and the detection data of the point laser displacement sensor is received and displayed by the computer system;
the point laser detection assembly further comprises a point laser height adjusting mechanism and/or a point laser angle adjusting mechanism;
the point laser height adjusting mechanism comprises a height adjusting sheet arranged on the point laser supporting seat and positioned below the point laser mounting seat and a height adjusting bolt penetrating through the height adjusting sheet and inserted into the point laser mounting seat;
the point laser mounting seat is connected with a strip-shaped hole of the point laser supporting seat through a bolt;
the rod body of the height adjusting bolt above the height adjusting sheet is sleeved with an adjusting nut;
the point laser angle adjusting mechanism comprises an angle control pin and an angle locking bolt;
arc-shaped limiting grooves and locking screw holes are respectively formed in the mounting lugs on the two sides of the point laser mounting seat;
the arc-shaped limiting groove is parallel to the end part of the transmission rack fixing seat, and the angle control pin penetrates through the arc-shaped limiting groove and is inserted into the transmission rack fixing seat;
the locking screw hole is perpendicular to the end of the transmission rack fixing seat, and the angle locking bolt penetrates through the locking screw hole and abuts against the transmission rack fixing seat.
2. The device for detecting the convex-concave amount of the tenon end surface and the disk end surface of the compressor blade according to claim 1, wherein the first sliding mechanism comprises a first guide rail, a first sliding block matched with the first guide rail, a fine adjustment rack arranged on the side surface of the first guide rail, a fine adjustment gear transmission shaft penetrating through the first sliding block and a fine adjustment gear arranged on the fine adjustment gear transmission shaft;
the fine adjustment gear is meshed with the fine adjustment rack;
the point laser supporting seat is arranged on the first sliding block.
3. The device for detecting the amount of protrusion and recess of the tenon end face and the disk end face of the compressor blade as claimed in claim 2, further comprising a counting photoelectric sensor arranged along the axial direction of the product and corresponding to the plurality of groups of blades of the product one by one;
the first sliding block is provided with a photoelectric sensing sheet for counting;
the counting is received by the computer system with the signals of the photoelectric sensors.
4. The device for detecting the convex-concave amount of the tenon end face and the disk end face of the compressor blade as claimed in any one of claims 1 to 3, wherein the driving assembly comprises a second sliding mechanism, a motor mounting seat arranged on the second sliding mechanism, a motor arranged on the motor mounting seat and an external spline connecting sleeve arranged on a first end shaft of a product;
a speed reducer is arranged on an output shaft of the motor;
an electromagnetic clutch base body is arranged on an output shaft of the speed reducer;
and the outer spline connecting sleeve is provided with an electromagnetic clutch flange matched with the electromagnetic clutch base body.
5. The compressor blade tenon end face and wheel disc end face concavity and convexity amount detection device according to claim 4, further comprising a driven carrier roller assembly and a driving carrier roller assembly located at two ends of a product;
the driven carrier roller assembly comprises a driven carrier roller mounting seat, a driven carrier roller bracket and a driven carrier roller;
the driven carrier roller bracket is fixed on the driven carrier roller mounting seat, and the upper end surface of the driven carrier roller bracket is a V-shaped surface;
the two driven carrier rollers are rotatably arranged on two sides of the V-shaped surface and used for supporting a first end shaft of a product;
the driving carrier roller assembly comprises a driving carrier roller mounting seat, a driving carrier roller bracket and a driving carrier roller;
the driving carrier roller supports are connected with strip-shaped holes in the driving carrier roller mounting seat through bolts, the two driving carrier roller supports are connected through spacing adjusting bolts, and the upper end surfaces of the two driving carrier roller supports are arranged in a V shape;
the two driving carrier rollers are respectively and rotatably arranged on the two driving carrier roller supports and are used for supporting second end shafts of products.
6. The compressor blade dovetail end-face and disk end-face asperity detection device of claim 5, further comprising an axial anti-migration assembly for abutting against the second end shaft of the product to prevent axial migration of the product;
the axial anti-channeling component comprises a third sliding mechanism, a side-push bracket arranged on the third sliding mechanism, a self-aligning bearing arranged on the side-push bracket and a side-push guide shaft connected with an inner ring of the self-aligning bearing;
and a disc used for abutting against the second end shaft of the product is arranged on the side-push guide shaft.
7. The compressor blade tenon end face and wheel disc end face concavity and convexity detection device of claim 6, further comprising an axial coarse positioning assembly;
the axial coarse positioning component comprises a positioning frame and a baffle plate arranged at the top of the positioning frame through a connecting column;
the connecting column is sleeved with a buffer spring;
the side-push guide shaft can pass through the positioning frame;
the baffle is positioned above the driving carrier roller bracket.
8. The compressor blade dovetail end-face and disk end-face asperity detection device of claim 7, further comprising a reset photoelectric sensing assembly;
the photoelectric sensing assembly for resetting comprises a first photoelectric sensor for resetting arranged on the point laser mounting seat, a first photoelectric sensing sheet for resetting arranged on the transmission rack, a second photoelectric sensing sheet for resetting arranged on the motor mounting seat, a second photoelectric sensor for resetting arranged on the rack, a third photoelectric sensing sheet for resetting arranged on the side push bracket and a third photoelectric sensor for resetting arranged on the rack;
and signals of the first reset photoelectric sensor, the second reset photoelectric sensor and the third reset photoelectric sensor are all received by a computer system.
9. A method for detecting the convex-concave amount of the tenon end surface and the wheel disc end surface of a compressor blade is characterized by comprising the following steps:
the method comprises the following steps of firstly, selecting an auxiliary journal on a rotor spindle as a reference for measuring and establishing a cylindrical coordinate system, wherein the establishing steps are as follows:
s1, selecting a journal close to the blade mounting disk as a measuring object;
s2, respectively measuring the end face of the journal close to one side of the wheel disc and the outer cylindrical surface to obtain corresponding point data;
s3, performing plane fitting on the measured point data of the end face of the journal to obtain a ro theta plane;
s4, projecting the measurement point data of the outer cylindrical surface of the shaft neck to the ro theta plane obtained by fitting in the step S3, and performing circle fitting on the projection points, wherein the circle center is the origin o of the coordinate system;
s5, the positive direction of the z axis is taken as a wheel disc for installing blades to point to the rotor;
s6, setting an original zero position with a vertical direction as a theta rotation angle;
the second step is that: extraction and error analysis of geometrical characteristics of tenon end face and wheel disc end face
S1, measuring the tenon end face of the blade and the end face of the rotor disk on the same side by using the convex-concave amount detection device of the tenon end face and the disk end face of the compressor blade as claimed in any one of claims 1 to 8 to obtain two groups of point data,
s2, performing plane fitting on the wheel disc end surface measurement point data to obtain a wheel disc end surface;
and S3, calculating the distance between the tenon end face measuring point and the wheel disc end face to obtain the axial assembly error of the blade.
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Effective date of registration: 20220704 Address after: 030002 block B, Huanya Times Square, No. 7, Yari street, Taiyuan Xuefu Park, Shanxi comprehensive reform demonstration zone, Taiyuan City, Shanxi Province Patentee after: SHANXI TEAMWORK PHOTOELECTRIC INDUSTRIES CO.,LTD. Patentee after: China Hangfa South Industry Co., Ltd Address before: 030002 block B, Huanya Times Square, No. 7, Yari street, Taiyuan Xuefu Park, Shanxi comprehensive reform demonstration zone, Taiyuan City, Shanxi Province Patentee before: SHANXI TEAMWORK PHOTOELECTRIC INDUSTRIES CO.,LTD. |