CN111982503B - Spiral bevel gear double-face engagement detection device and method - Google Patents
Spiral bevel gear double-face engagement detection device and method Download PDFInfo
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- CN111982503B CN111982503B CN202010692535.5A CN202010692535A CN111982503B CN 111982503 B CN111982503 B CN 111982503B CN 202010692535 A CN202010692535 A CN 202010692535A CN 111982503 B CN111982503 B CN 111982503B
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M13/00—Testing of machine parts
- G01M13/02—Gearings; Transmission mechanisms
- G01M13/021—Gearings
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- G—PHYSICS
- 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
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- G—PHYSICS
- 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
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- G—PHYSICS
- 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
- G01B11/24—Measuring arrangements characterised by the use of optical techniques for measuring contours or curvatures
- G01B11/2416—Measuring arrangements characterised by the use of optical techniques for measuring contours or curvatures of gears
Abstract
The invention discloses a spiral bevel gear double-sided engagement detection device and a method, wherein the spiral bevel gear double-sided engagement detection device comprises a machine tool, and an X-axis guide rail and a Z-axis guide rail which are vertical to each other are arranged along the horizontal direction; the upright post is arranged on the X-axis guide rail in a sliding manner, and the side surface of the upright post is provided with a Y-axis guide rail parallel to the vertical direction; the first wheel box is arranged on the Y-axis guide rail in a sliding manner; the second wheel box is arranged on the Z-axis guide rail in a sliding manner; and the displacement detection device is arranged on the machine tool and is used for detecting the position change of the second wheel box when the first bevel gear and the second bevel gear are meshed in a double-sided mode. First bevel gear and second bevel gear continue to rotate after the two-sided meshing, because the existence of defects such as burr, beating, the second wheel case can produce along Z axle guide rail ascending position change, handles the position change data of displacement detection device record and whether the back analysis exceeds the tolerance, judges first bevel gear and second bevel gear whether qualified, and this scheme detection efficiency is high, and the testing result is more accurate.
Description
Technical Field
The invention relates to a detection technology of a spiral bevel gear, in particular to a double-face meshing detection device and method of the spiral bevel gear.
Background
The spiral bevel gear is a transmission part, and has the advantages of high transmission efficiency, stable transmission ratio, large arc overlapping coefficient, high bearing capacity, stable and smooth transmission, reliable work, compact structure, energy and material conservation, space conservation, wear resistance, long service life and low noise. In various mechanical transmissions, the transmission efficiency of the spiral bevel gear is the highest, and the spiral bevel gear has great economic benefit for various transmissions, particularly high-power transmissions, so that the spiral bevel gear is widely applied to the mechanical transmission fields of automobiles, aviation, mines and the like.
The spiral bevel gear is used as an important transmission component, after machining is completed, pairing and checking of the spiral bevel gear pair are needed, radial runout and burrs of the gear pair are needed to be detected before pairing and checking are conducted, and therefore the gear and detection equipment are prevented from being damaged due to defects such as radial runout and burrs during pairing and checking. At present, the quality of the bevel gear is detected on the production site by mainly adopting a rolling inspection machine, the quality of the bevel gear is judged through a contact area of a gear pair and the noise condition transmitted out, but the detection result is not accurate enough by applying the detection device, and the detection efficiency is lower.
Disclosure of Invention
The present invention is directed to solving at least one of the problems of the prior art. Therefore, on the one hand, the invention provides a detection device for a spiral bevel gear, which can detect defects such as jumping and burrs efficiently and accurately.
The double-sided engagement detection device for the spiral bevel gear according to the embodiment of the invention comprises: the machine tool is provided with an X-axis guide rail and a Z-axis guide rail which are vertical to each other along the horizontal direction; the upright post is arranged on the X-axis guide rail in a sliding manner, and the side surface of the upright post is provided with a Y-axis guide rail parallel to the vertical direction; the first wheel box is arranged on the Y-axis guide rail in a sliding manner and is provided with a first rotating main shaft for mounting a first bevel gear; the second wheel box is arranged on the Z-axis guide rail in a sliding mode and is provided with a second rotating main shaft used for mounting a second bevel gear; and the displacement detection device is arranged on the machine tool and used for detecting the position change of the second wheel box when the first bevel gear and the second bevel gear are meshed on the two sides.
The spiral bevel gear double-face meshing detection device provided by the embodiment of the invention at least has the following technical effects: the first bevel gear and the second bevel gear continue to rotate after double-sided meshing is achieved, due to the existence of defects such as burrs and jumping, the second wheel box can generate position change along the Z-axis guide rail direction in the rotating process of the first bevel gear and the second bevel gear, the displacement detection device records the position change data of the second wheel box, whether the data exceed tolerance or not is analyzed after the data are processed, whether the first bevel gear and the second bevel gear are qualified or not is judged, the detection efficiency is high, and the detection result is more accurate.
According to some embodiments of the invention, the displacement detection device is a grating detection device.
According to some embodiments of the invention, the grating detection device comprises a grating readhead provided on the second wheel box and a scale grating provided on the machine tool parallel to the Z-axis guide rail.
According to some embodiments of the invention, a side of the second wheel box away from the first wheel box is provided with an elastic supporting mechanism, and the elastic supporting mechanism is slidably arranged on the Z-axis guide rail.
According to some embodiments of the invention, the elastic supporting mechanism is provided with a mounting seat, a guide rod and a spring, the mounting seat is slidably arranged on the Z-axis guide rail, one end of the guide rod is fixedly connected with the second wheel box, the other end of the guide rod penetrates through the mounting seat, an anti-falling head is arranged at the tail end of the guide rod, the spring is sleeved on the guide rod, one end of the spring supports against the second wheel box, and the other end of the spring supports against the mounting seat.
According to some embodiments of the invention, the mounting seat is further provided with a cylinder, a protruding end of the cylinder faces the second wheel box, when the cylinder extends out and abuts against the second wheel box, the anti-falling head abuts against the mounting seat, and the spring is in a natural length or a compressed state.
According to some embodiments of the invention, a signal switch is arranged on the machine tool corresponding to the positions where the first bevel gear and the second bevel gear are to be engaged, and the signal switch is used for detecting whether the second bevel gear moves to a position where double-sided engagement with the first bevel gear is achieved.
On the other hand, the invention provides a spiral bevel gear detection method, which is realized based on the double-face meshing detection device of the spiral bevel gear in the embodiment; firstly, correspondingly installing the first bevel gear and the second bevel gear to be tested on the first wheel box and the second wheel box, wherein the first wheel box moves to a standard installation distance position along the X-axis guide rail and the Y-axis guide rail, the second wheel box moves to a position ready for tooth alignment along the Z-axis guide rail, and then the automatic tooth alignment of the first bevel gear and the second bevel gear is completed; an elastic jacking mechanism is arranged on the Z-axis guide rail and is positioned on one side of the second wheel box far away from the first wheel box, the second wheel box is pushed to slide by the elastic jacking mechanism until the side clearance between the first bevel gear and the second bevel gear is eliminated, and double-sided meshing of the first bevel gear and the second bevel gear is completed; then the second rotating main shaft rotates, and the second bevel gear rotates and drives the first bevel gear to rotate; the displacement detection device detects and records the position change of the second wheel box; and finally, carrying out Fourier transformation on the measured data to distinguish different defects, carrying out inverse Fourier transformation on the single defect to obtain a time domain value of the single defect, comparing the processed time domain value with a tolerance, and judging whether the first bevel gear and the second bevel gear are qualified or not.
The spiral bevel gear double-face meshing detection method provided by the embodiment of the invention at least has the following technical effects: the detection method can analyze the influence caused by different defects by measuring the position change of the second wheel box on the Z-axis guide rail and analyzing the recorded data, and can judge whether the measured quality of the first bevel gear and the second bevel gear is qualified or not.
According to some embodiments of the present invention, when aligning teeth automatically, the elastic supporting mechanism supports the second gear box, the motor screw mechanism drives the elastic supporting mechanism to move to drive the second gear box to move, if the distance that the elastic supporting mechanism moves is greater than the distance that the second gear box moves, which is detected by the displacement detection device, the automatic tooth alignment fails, at this time, the second gear box is returned to the original position, the second bevel gear is rotated by an angle, and then the second gear box is moved to the position ready for tooth alignment again to continue tooth alignment.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
fig. 1 is a schematic structural view of a double-sided meshing detection device for a spiral bevel gear according to an embodiment of the present invention;
reference numerals are as follows: the machine tool comprises a machine tool 101, an X-axis guide rail 102, a Z-axis guide rail 103, a stand column 104, a Y-axis guide rail 105, a first wheel box 106, a first rotating main shaft 107, a second wheel box 108, a second rotating main shaft 109, a mounting seat 111, an elastic piece 112, a guide rod 113, an air cylinder 114, a signal switch 115 and a motor screw mechanism 116.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.
In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "axial," "radial," "circumferential," and the like are used in an orientation or positional relationship indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and are not to be construed as limiting the invention. Furthermore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in a specific case to those of ordinary skill in the art.
Referring to fig. 1, the present invention provides a double-sided engagement detecting device for a helical bevel gear, including: a machine tool 101 provided with an X-axis guide rail 102 and a Z-axis guide rail 103 perpendicular to each other; the upright post is arranged on the X-axis guide rail 102 in a sliding manner, and the side surface of the upright post is provided with a Y-axis guide rail 105 parallel to the vertical direction; a first wheel box 106, which is slidably disposed on the Y-axis guide rail 105 and is provided with a first rotating main shaft 107 for mounting a first bevel gear (not shown in the figure); a second wheel box 108, which is slidably arranged on the Z-axis guide rail 103 and is provided with a second rotating main shaft 109 for mounting a second bevel gear (not shown in the figure); and the displacement detection device is arranged on the machine tool 101 and is used for detecting the position change of the second wheel box 108 when the first bevel gear and the second bevel gear are meshed in a double-sided mode.
The spiral bevel gear double-sided meshing detection device provided by the embodiment of the invention at least has the following technical effects: first bevel gear and second bevel gear continue to rotate after realizing two-sided meshing, because the burr, the existence of defects such as beating, second wheel case 108 can produce along Z axle guide rail 103 ascending position change at first bevel gear and second bevel gear rotation in-process, displacement detection device notes the data of the position change of second wheel case 108, whether the analysis surpasses the tolerance after handling data, judge whether qualified first bevel gear and second bevel gear, this scheme detection efficiency is high, the testing result is more accurate.
In some embodiments of the present invention, the displacement detection device is a grating detection device, and has the characteristics of large detection range, high detection precision and high response speed.
In some embodiments of the invention, the grating detection device comprises a grating readhead provided on the second wheel box 108 and a scale grating provided on the machine tool 101 parallel to the Z-axis guide rail 103.
In some embodiments of the present invention, a side of second wheel box 108 away from first wheel box 106 is provided with a resilient support mechanism that is slidably disposed on Z-axis guide rail 103. When the first bevel gear and the second bevel gear are in double-sided engagement, if the first bevel gear and the second bevel gear have defects such as jumping and burrs, the position of the second wheel box 108 on the Z-axis guide rail 103 will change, and the grating detection device will record the change. Because of the existence of the elastic jacking mechanism, the first bevel gear is in flexible contact with the second bevel gear, and the second wheel box 108 can return to the position where the first bevel gear and the second bevel gear are in double-sided engagement, so that continuous detection is facilitated.
In some embodiments of the present invention, the elastic supporting mechanism is provided with a mounting seat 111, a guide rod 113, and a spring 112, the mounting seat 111 is slidably disposed on the Z-axis guide rail 103, one end of the guide rod 113 is fixedly connected to the second wheel box 108, the other end of the guide rod 113 is disposed through the mounting seat 111, and an anti-drop head is disposed at the end of the guide rod 113, the spring 112 is sleeved on the guide rod 113, and one end of the spring supports against the second wheel box 108, and the other end supports against the mounting seat 111. It can be understood that when a set of spiral bevel gears is measured and a next set of bevel gears needs to be replaced, the first wheel box 106 and the second wheel box 108 need to be retracted to the initial positions, and the anti-drop heads are arranged so that when the mounting seat 111 moves in the reverse direction, the guide rod 113 can pull the second wheel box 108 to realize the directional movement.
In some embodiments of the present invention, the mounting seat 111 is further provided with a cylinder 114, a protruding end of the cylinder 114 faces the second wheel box 108, when the cylinder 114 protrudes and abuts the second wheel box 108, the anti-slip head abuts the mounting seat 111, and the spring 112 is in a natural length or a compressed state.
In some embodiments of the present invention, a side of the mounting seat 111 away from the second wheel box 108 is provided with a motor screw mechanism 116 for driving the mounting seat 111 to move. The motor screw mechanism 116 includes a screw rod disposed below the mounting base 111 and parallel to the Z-axis guide rail 103, and a motor driving the screw rod to rotate. The nut on the screw rod is fixedly connected with the bottom of the mounting seat 111, the motor is started to drive the screw rod to rotate, and the nut drives the mounting seat 111 to move, so that the second wheel box 108 can be pushed to move.
In some embodiments of the present invention, a signal switch 115 is disposed on the machine tool 101 corresponding to the position where the first bevel gear and the second bevel gear are to be engaged, and the signal switch 115 is used to detect whether the second bevel gear moves to a position where the first bevel gear is engaged with the second bevel gear in a double-sided manner.
On the other hand, the invention provides a spiral bevel gear detection method, which is realized based on the double-face meshing detection device of the spiral bevel gear in the embodiment; firstly, correspondingly installing a first bevel gear and a second bevel gear to be tested on a first wheel box 106 and a second wheel box 108, enabling the first wheel box 106 to move to a standard installation distance position along an X-axis guide rail 102 and a Y-axis guide rail 105, enabling the second wheel box 108 to move to a position ready for tooth alignment along a Z-axis guide rail 103, and then completing automatic tooth alignment of the first bevel gear and the second bevel gear; an elastic jacking mechanism which is positioned on one side of the second wheel box 108 far away from the first wheel box 106 is arranged on the Z-axis guide rail 103, and the elastic jacking mechanism pushes the second wheel box 108 to slide until the backlash between the first bevel gear and the second bevel gear is eliminated, so that the double-sided meshing of the first bevel gear and the second bevel gear is completed; then, the second rotating main shaft 109 rotates, and the second bevel gear rotates and drives the first bevel gear to rotate; the displacement detection means detects and records the change in position of the second wheel box 108; and finally, carrying out Fourier transformation on the measured data to distinguish different defects, carrying out inverse Fourier transformation on the single defect to obtain a time domain value of the single defect, comparing the processed time domain value with a tolerance, and judging whether the first bevel gear and the second bevel gear are qualified or not.
The spiral bevel gear double-face meshing detection method provided by the embodiment of the invention at least has the following technical effects: according to the detection method, the position change of the second wheel box 108 on the Z-axis guide rail 103 is measured, the recorded data are analyzed, the influence caused by different defects can be analyzed, and whether the measured quality of the first bevel gear and the second bevel gear is qualified or not can be judged.
In some embodiments of the present invention, during automatic tooth alignment, the elastic supporting mechanism supports the second wheel box 108, the motor screw mechanism 116 drives the elastic supporting mechanism to move to drive the second wheel box 108 to move, if the distance that the elastic supporting mechanism moves is greater than the distance that the second wheel box 108 moves, which is detected by the displacement detection device, the automatic tooth alignment fails, at this time, the second wheel box 108 is returned to the original position, the second bevel gear is rotated by an angle, and then the second wheel box 108 is moved again to the position ready for tooth alignment, and tooth alignment continues. It is understood that the distance that the motor screw mechanism 116 drives the screw to move can be set, and the actual distance that the second wheel box 108 moves can be visually reflected by the displacement detection device. Theoretically, the distance moved by the elastic supporting mechanism and the distance moved by the second wheel box 108 should be equal, and if the distance moved by the elastic supporting mechanism is greater than the distance moved by the second wheel box 108, it indicates that the first bevel gear and the second bevel gear fail to align teeth.
Specifically, the second bevel gear and the first bevel gear are loaded on the second wheel box 108 and the first wheel box 106 respectively, and the first wheel box 106 is moved to a standard mounting distance position along the X-axis guide rail 102 and the Y-axis guide rail 105; the telescopic rods of the two air cylinders 114 extend out and abut against the side wall of the second wheel box 108, then the second wheel box 108 is moved by driving the motor screw mechanism 116 to automatically align teeth, if the teeth are aligned, the second wheel box 108 needs to be moved to the original position in the opposite direction, and the teeth are aligned again after the second bevel gear rotates for an angle. After the teeth are formed, the cylinder 114 retracts, and the second gearbox 108 continues to move towards the first gearbox 106, the spring 112 is compressed during the movement, and when the spring 112 is compressed to a certain amount, the signal switch 115 is triggered, which indicates that the second bevel gear and the first bevel gear are in double-sided engagement, and at this time, the second gearbox 108 stops moving. The second rotating main shaft 109 is started to rotate, the second bevel gear drives the first bevel gear to rotate, and in the embodiment, the rotating speed of the second rotating main shaft 109 is controlled to be 5-10 rpm in order to prevent the tooth surface from being damaged. At this time, the spring 112 applies pressure to the second gearbox 108, and the first bevel gear and the second bevel gear are not in rigid contact, so that the possibility of damage to the tooth surface is reduced. When the bevel gear rotates, due to the defects of jumping, burrs and the like of the gear, the second wheel box 108 records the position change on the Z-axis guide rail 103 by the position change grating ruler. In this embodiment, the sampling frequency is 100Hz, the sampling period is one rotation of the first bevel gear, and the defect curve is drawn according to the data recorded by the grating ruler.
The measured data is then subjected to discrete fourier transform:
and X (t) is a time domain signal of the transmission error, t is time, and X (f) is a converted frequency domain signal. The jumping frequency of the first bevel gear, the jumping frequency of the second bevel gear, burr or scratch frequency and other different defects can be distinguished:
the jumping frequency of the first bevel gear is P rpm 60, the hopping frequency of the second bevel gear is P rpm /60*N 1 /N 2 ；P rpm Is the rotational speed of the first bevel gear, N 1 Representing the number of teeth of the first bevel gear.
And X (f) filtering according to different frequencies to obtain a filtered frequency domain signal X (m), and performing inverse Fourier transform according to the following formula:
the time domain values X (n) of the jumping of the first bevel gear, the jumping of the second bevel gear and burrs or scratches can be obtained, the time domain value of each defect is compared with the tolerance of the jumping, the burrs or the scratches, whether the measured defects of the first bevel gear and the second bevel gear are in a standard range or not can be judged, if the measured defects of the first bevel gear and the second bevel gear are in the standard range, the double-sided meshing detection of the first bevel gear and the second bevel gear is passed, and the product quality is qualified; if the second bevel gear is not in the standard range, the quality of the first bevel gear and/or the second bevel gear is not qualified.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
While embodiments of the invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.
Claims (7)
1. A kind of spiral bevel gear double-sided engagement detection device, characterized by comprising:
the machine tool is provided with an X-axis guide rail and a Z-axis guide rail which are vertical to each other along the horizontal direction;
the upright post is arranged on the X-axis guide rail in a sliding manner, and the side surface of the upright post is provided with a Y-axis guide rail parallel to the vertical direction;
the first wheel box is arranged on the Y-axis guide rail in a sliding manner and is provided with a first rotating main shaft for mounting a first bevel gear;
the second wheel box is arranged on the Z-axis guide rail in a sliding mode and is provided with a second rotating main shaft used for mounting a second bevel gear;
the elastic jacking mechanism is positioned on one side, away from the first wheel box, of the second wheel box, the elastic jacking mechanism is provided with an installation seat, a guide rod and a spring, the installation seat is arranged on the Z-axis guide rail in a sliding mode, one end of the guide rod is fixedly connected with the second wheel box, the other end of the guide rod penetrates through the installation seat, the tail end of the guide rod is provided with an anti-falling head, and the spring is sleeved on the guide rod, jacks the second wheel box at one end of the spring, and jacks the installation seat at the other end of the spring;
and the displacement detection device is arranged on the machine tool and is used for detecting the position change of the second wheel box when the first bevel gear and the second bevel gear are in double-sided engagement.
2. The double-sided engagement detection device for the helical bevel gear according to claim 1, characterized in that: the displacement detection device is a grating detection device.
3. The apparatus for detecting double-sided engagement of helical bevel gears according to claim 2, wherein: the anti-falling device is characterized in that an air cylinder is further arranged on the mounting seat, the extending end of the air cylinder faces the second wheel box, when the air cylinder extends out and abuts against the second wheel box, the anti-falling head abuts against the mounting seat, and the spring is in a natural length or a compression state.
4. The double-sided engagement detecting device for a spiral bevel gear according to claim 3, wherein: and a motor screw mechanism for driving the mounting seat to move is arranged on one side of the mounting seat far away from the second wheel box.
5. The apparatus for detecting double-sided engagement of helical bevel gears according to claim 4, wherein: and the machine tool is provided with a signal switch corresponding to the positions to be meshed with the first bevel gear and the second bevel gear, and the signal switch is used for detecting whether the second bevel gear moves to the position where double-sided meshing with the first bevel gear is realized.
6. A double-sided engagement detection method for a spiral bevel gear, characterized in that the detection method employs the double-sided engagement detection device for a spiral bevel gear according to claim 1; firstly, correspondingly installing the first bevel gear and the second bevel gear to be tested on the first wheel box and the second wheel box, wherein the first wheel box moves to a standard installation distance position along the X-axis guide rail and the Y-axis guide rail, the second wheel box moves to a position ready for tooth alignment along the Z-axis guide rail, and then the automatic tooth alignment of the first bevel gear and the second bevel gear is completed; an elastic jacking mechanism which is positioned on one side of the second wheel box far away from the first wheel box is arranged on the Z-axis guide rail, the second wheel box is pushed to slide by the elastic jacking mechanism until the backlash between the first bevel gear and the second bevel gear is eliminated, and the double-sided meshing of the first bevel gear and the second bevel gear is completed; then the second rotating main shaft rotates, and the second bevel gear rotates and drives the first bevel gear to rotate; the displacement detection device detects and records the position change of the second wheel box; and finally, carrying out Fourier transformation on the measured data to distinguish different defects, carrying out inverse Fourier transformation on the single defect to obtain a time domain value of the single defect, comparing the processed time domain value with a tolerance, and judging whether the first bevel gear and the second bevel gear are qualified or not.
7. The double-sided engagement detection method for a helical bevel gear according to claim 6, characterized in that: the elastic supporting mechanism is provided with a mounting seat, a guide rod and a spring, the mounting seat is arranged on the Z-axis guide rail in a sliding manner,
one end of the guide rod is fixedly connected with the second wheel box, the other end of the guide rod penetrates through the mounting seat, the tail end of the guide rod is provided with an anti-falling head, the spring is sleeved on the guide rod, one end of the spring supports against the second wheel box, and the other end of the spring supports against the mounting seat; the mounting seat is further provided with an air cylinder, the extending end of the air cylinder faces the second wheel box, when the air cylinder extends out and abuts against the second wheel box, the anti-falling head abuts against the mounting seat, the spring is in a natural length or a compressed state, and one side, away from the second wheel box, of the mounting seat is provided with a motor screw mechanism used for driving the mounting seat to move; when the gears are automatically aligned, the elastic supporting mechanism supports the second wheel box, the motor lead screw mechanism drives the elastic supporting mechanism to move so as to drive the second wheel box to move, if the moving distance of the elastic supporting mechanism is larger than the moving distance of the second wheel box detected by the displacement detection device, the automatic gear alignment fails, the second wheel box is returned to the original position, the second bevel gear rotates for an angle, and then the second wheel box is moved to the position for preparing gear alignment again to continue to be aligned.
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| IT1091619B (en) * | 1977-11-25 | 1985-07-06 | Rtm Inst Res Tech Mec | EQUIPMENT FOR DYNAMIC GEAR TESTING |
| US5271271A (en) * | 1991-04-03 | 1993-12-21 | Frazier Charles H | Method and apparatus for inspection of gears |
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| CN2809621Y (en) * | 2005-04-08 | 2006-08-23 | 重庆工学院 | Intelligent detection system for bevel gear transmission quality |
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