CN111665248B - Gear detection device for automobile windscreen wiper transmission mechanism - Google Patents
Gear detection device for automobile windscreen wiper transmission mechanism Download PDFInfo
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- CN111665248B CN111665248B CN202010736366.0A CN202010736366A CN111665248B CN 111665248 B CN111665248 B CN 111665248B CN 202010736366 A CN202010736366 A CN 202010736366A CN 111665248 B CN111665248 B CN 111665248B
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/84—Systems specially adapted for particular applications
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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
- G01B11/14—Measuring arrangements characterised by the use of optical techniques for measuring distance or clearance between spaced objects or spaced apertures
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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
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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
- G01B11/26—Measuring arrangements characterised by the use of optical techniques for measuring angles or tapers; for testing the alignment of axes
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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
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/01—Arrangements or apparatus for facilitating the optical investigation
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/84—Systems specially adapted for particular applications
- G01N21/88—Investigating the presence of flaws or contamination
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/01—Arrangements or apparatus for facilitating the optical investigation
- G01N2021/0106—General arrangement of respective parts
- G01N2021/0112—Apparatus in one mechanical, optical or electronic block
Abstract
The invention belongs to the technical field of gear measurement, and particularly relates to a gear detection device for an automobile windscreen wiper transmission mechanism, which comprises a base and a processing system, wherein the processing system is separated from the base, is connected with the base through a cable, and transmits data and control signals; a bracket is arranged on the base; the bracket is provided with a movable fixed block; the lower end of the movable fixed block is provided with a CCD lens; the upper surface of the base is fixedly provided with a three-axis upright post; a three-dimensional probe is arranged on the three-axis upright post; the upper surface of the base is provided with a circular mounting groove; an annular light source is arranged in the circular mounting groove; a toughened glass panel is arranged on the round mounting groove; an insertion hole is formed in the center of the circular mounting groove; the rotating shaft on the gear with the shaft to be detected is inserted into the insertion hole; a motor is arranged in the base; the motor drives the rotating shaft to rotate; the invention has the advantages of high detection speed and good detection result accuracy.
Description
Technical Field
The invention belongs to the technical field of gear measurement, and particularly relates to a gear detection device for an automobile windscreen wiper transmission mechanism.
Background
Gears are toothed mechanical parts that can mesh with one another and are used in a very wide variety of mechanical transmission and overall mechanical applications. The precision of each gear tooth of the gear and the distance between adjacent gear teeth are very important for the normal operation of the gear, and the gear with low precision and irregular teeth not only can generate jitter and noise when being meshed with other standard gears to influence the transmission effect, but also can influence the whole service life of the applied equipment. Therefore, it is necessary to detect the gear teeth after machining. Simultaneously, the gear among the present common car wiper drive mechanism all adopts the metal to mould plastics the manufacturing, and the gear that the preparation obtained has the metal pivot, and simultaneously, the general specification of wiper drive mechanism gear is less, and the quality is lighter, and when applying current gear detection device to this gear and detecting, detection speed is slower, simultaneously, because the gear specification is less, the quality is lighter, and the detection degree of difficulty is higher, and the testing result accuracy is not good.
The prior art also has some technical solutions, such as chinese patent with application number CN201920706273.6, including a machine body and a base, the bottom of the machine body is provided with the base, one side of the machine body is provided with a stand column, the stand column is of a hollow structure, and two sliding chutes are arranged on the stand column in parallel, one side of one of the sliding chutes is provided with a scale line, one side of the stand column is provided with a first measuring device, one side of the machine body is provided with a second measuring device, the bottom of the first measuring device is correspondingly provided with a rotating table, the top of the rotating table is provided with a placing table, the bottom of the rotating table is fixedly connected with the top end of a micro lifting cylinder, the bottom of the micro lifting cylinder is fixedly connected with a rotating plate, the bottom of the rotating plate is fixedly connected with a connecting shaft, the connecting shaft is fixedly connected with a motor shaft of, the gear is measured by the measuring machine, but the clamping process of the gear in the process of detecting the gear in the scheme is complex, the parallelism between the gear and the base in the clamping process cannot be fully guaranteed, and the error of the detection result is large.
Disclosure of Invention
The invention provides a gear detection device for an automobile windscreen wiper transmission mechanism, which aims to make up for the defects of the prior art and improve the gear detection speed and the accuracy of detection results.
The technical scheme adopted by the invention for solving the technical problems is as follows: the invention relates to a gear detection device for an automobile windscreen wiper transmission mechanism, which comprises a base and a processing system, wherein the processing system is separated from the base, is connected with the base through a cable, and transmits data and control signals; the processing system comprises a computer and a printer; the base is made of marble material; a bracket is fixedly arranged on the upper surface of the base; the bracket is fixedly provided with a movable fixing block through a bolt; the lower end of the movable fixed block is fixedly provided with a CCD lens; the CCD lens is opposite to the center of the upper surface of the base; the upper surface of the base is fixedly provided with a three-axis upright post; a three-dimensional probe is arranged on the three-axis upright post; the three-dimensional probe can freely move along X, Y, Z three directions on the three-axis upright post; the upper surface of the base is provided with a circular mounting groove; the central line of the circular mounting groove is superposed with the central line of the CCD lens; an annular light source is arranged in the circular mounting groove; a toughened glass panel is arranged on the round mounting groove; the toughened glass panel is flush with the surface of the base; an insertion hole is formed in the center of the circular mounting groove; holes are formed in corresponding positions on the toughened glass panel; the rotating shaft on the gear with the shaft to be tested is inserted into the insertion hole; a motor is arranged in the base; the motor is a servo motor, and a first gear is mounted on an output shaft of the motor; the first gear is meshed with a rotating shaft of the gear with the shaft to drive the rotating shaft to rotate;
when the three-dimensional probe moving detection device works, the total power supply of the detection device is turned on, then, a computer in a processing system is started, a measurement program in the computer is operated, after the measurement program is operated, a gear with a shaft to be detected is placed on a base, the measurement program is started on the computer, the gear is started to be measured, corresponding parameters of the gear are obtained, meanwhile, when the measurement program starts to be measured, the gear on a toughened glass panel is photographed through a CCD lens to obtain a two-dimensional outline image of the gear, whether the gear has obvious defects or not and the tooth profile, the tooth direction and the tooth number of the gear to be detected are judged, after the tooth profile and the tooth direction data of the gear to be detected are obtained, the measurement program controls the three-dimensional probe on a three-shaft upright column to start to move, the three-dimensional probe directly contacts the surface of the gear through the, Detailed parameters including modulus, helix angle and reference circle, then, the measuring program compares the obtained corresponding parameters with preset standard parameters to determine the qualified condition of the measured gear, generate a measuring result table, and an operator prints the measuring result table through a printer for recording; in the measuring process, the rotating shaft of the gear to be measured is inserted into the insertion hole, after the rotating shaft is inserted into the insertion hole, the upper surface of the gear with the shaft is kept parallel to the upper surface of the base, the CCD camera lens is convenient to shoot, the shooting effect is improved, larger errors are avoided, meanwhile, the time and difficulty for placing the gear can be effectively reduced, the detection time is shortened, the operation threshold is reduced, meanwhile, the parallelism between the surface of the gear with the shaft and the base can be ensured to a certain degree by inserting the rotating shaft of the gear with the shaft into the insertion hole, meanwhile, the verticality of the rotating shaft relative to the base is improved, the gear is prevented from being inclined in the placing process, the detection is influenced, larger errors are caused, the detection result is invalid, and meanwhile, after the rotating shaft is completely inserted into the insertion hole, a motor arranged in the base can be controlled by a measuring program, the rotating shaft is driven to move, so that the phi-direction freedom degree of the rotating shaft is eliminated in the detection process, and the measurement accuracy is improved.
Preferably, a rotating ring is mounted at the upper end of the insertion hole; the rotating shaft with the shaft gear is inserted into the rotating ring; the upper surface of the rotating ring is flush with the bottom surface of the circular mounting groove; the upper end of the insertion hole is provided with a leading-in head; the lower surface of the leading-in head is contacted with the upper surface of the rotating ring; the upper surface of the leading-in head is flush with the upper surface of the toughened glass panel; the section of the leading-in head is trapezoidal; a contact ring is arranged in the middle of the insertion hole; the inner diameter of the contact ring is larger than the diameter of a rotating shaft of the gear with the shaft; the rotating shaft penetrates through the contact ring; the contact ring is electrically connected with the processing system through a cable; the rotating ring is electrically connected with the processing system through a cable; the rotating ring and the contact ring can be easily replaced, and replacement spare parts with different inner diameters exist in the rotating ring and the contact ring;
when the device works, when the rotating shaft is inserted into the insertion hole, the lower end of the rotating shaft firstly contacts the leading-in head, the rotating shaft smoothly enters the insertion hole through the guide of the leading-in head, the collision between the rotating shaft and the inner wall of the insertion hole is avoided, the detection is influenced, meanwhile, the rotating shaft is prevented from impacting the inlet of the insertion hole, the inlet of the insertion hole is prevented from being greatly abraded, the tool error is increased, the accuracy of the detection result is influenced, meanwhile, after the rotating shaft enters the insertion hole through the leading-in head, the rotating shaft penetrates through the rotating ring and continues to move downwards, meanwhile, the rotating ring penetrated by the rotating shaft can avoid the friction between the rotating shaft and the inner wall of the insertion hole in the subsequent detection process, the gear rotates in the phi direction under the action of the motor, the larger error is generated, the accuracy of the gear detection is influenced, and meanwhile, the additional, the precision of the detection device and the gear rotating shaft is reduced, the subsequent detection accuracy of the detection device is influenced, the abrasion speed of the gear is accelerated in the use process, the service life is shortened, meanwhile, after the rotating shaft passes through the rotating ring, the rotating shaft continues to downwards pass through the contact ring, finally the rotating shaft is inserted into the driving ring, after the rotating shaft is completely inserted, the rotating shaft is not contacted with the contact ring, the rotating ring is ensured not to be conducted with the contact ring through the rotating shaft, the circuit is communicated, a processing system cannot receive a circuit connection signal, the verticality between the rotating shaft and the base is judged to be better, the rotating shaft is not inclined or bent, the rotating shaft is contacted with the inner wall of the insertion hole, the accuracy of gear placement is ensured under the condition that the gear placement process is simple and convenient, and the included angle larger than 0 degree is prevented from existing between the gear plane and the upper surface of, influences the subsequent detection process, influences the accuracy of the detection result,
preferably, the lower end of the insertion hole is provided with a driving ring; the upper end of the driving ring is contacted with the insertion hole, and sliding friction is generated between the upper end of the driving ring and the insertion hole; the lower end of the driving ring is provided with a gear section; the gear section is meshed with the first gear; a plurality of mounting cavities are formed in the driving ring; the installation cavity is perpendicular to the central line of the driving ring; the mounting cavities are uniformly distributed on the upper half part of the driving ring; the opening of the mounting cavity is positioned on the inner surface of the driving ring; a second spring is arranged in the mounting cavity; an ejection column is arranged in the mounting cavity; the top end of the ejection column extends out of the mounting cavity; the top end of the ejection column is circular;
when the automobile windscreen wiper power transmission mechanism works, after the rotating shaft is inserted into the driving ring, the ejection column positioned on the inner surface of the upper half part of the driving ring is pressed back into the mounting cavity under the action of the rotating shaft, the ejection column presses the second spring in the mounting cavity after the ejection column returns into the mounting cavity, the second spring elastically deforms, meanwhile, under the action of the second spring, the ejection column is subjected to the reaction force of the second spring, the ejection column has outward ejection force, the circular top end of the ejection column is tightly attached to the surface of the rotating shaft, so that the rotating shaft and the driving ring are relatively fixed, meanwhile, because the ejection columns are uniformly distributed on the inner circumference of the driving ring, the rotating shaft is subjected to the ejection effect of the ejection columns, so that the center line of the rotating shaft is superposed with the center line of the driving ring, meanwhile, because the gear used in the automobile windscreen wiper power transmission mechanism is small in, meanwhile, the gear is taken away after driving is finished due to the fact that the ejection column is fixed, meanwhile, the gear section is arranged at the lower end of the driving ring, the gear section is meshed with the first gear, the motor accurately drives the gear to rotate in the phi direction under the control of a measuring program, sufficient and complete detection is guaranteed, measuring items are increased, and the detection effect is improved.
Preferably, a first cavity is formed in the base; the first cavity is cylindrical and is positioned right below the insertion hole; a buffer column is arranged in the first cavity; the upper end of the buffer column is positioned in the driving ring; a cavity II is formed in the base; the cavity is located below the motor; an air bag is arranged in the cavity II; a first channel is formed in the base; the first cavity is communicated with the air bag in the second cavity through the first channel; a one-way valve is arranged in the first channel, and gas enters the air bag in a one-way mode; a second channel is formed in the base; an outlet of the second channel is positioned on the bottom surface of the circular mounting groove; the second channel is communicated with the air bag; a one-way valve is arranged in the second channel; the side wall of the circular mounting groove is uniformly provided with exhaust holes; the exhaust holes are obliquely arranged, and the outlets of the exhaust holes are positioned on the outer side of the toughened glass panel; a filter screen is arranged in the exhaust hole; the surface of the filter screen is flush with the surface of the base;
when the air bag is in work, when the rotating shaft is inserted into the driving ring, the lower end of the rotating shaft contacts the buffer column firstly, the buffer column is continuously extruded in the downward movement process of the rotating shaft, the buffer column moves downwards, meanwhile, in the downward movement process of the buffer column, partial resistance is provided for the insertion process of the rotating shaft, the speed of the rotating shaft inserted into the driving ring is reduced, the rotating shaft is prevented from being excessively fast inserted, collision between the rotating shaft and the driving ring is caused, the driving ring is damaged, meanwhile, the lower end of the rotating shaft is prevented from colliding against the bottom surface of the insertion hole due to the excessively fast insertion speed of the rotating shaft, the base and the rotating shaft are damaged, meanwhile, in the descending process of the buffer column, the space in the cavity I is gradually reduced, the pressure is increased, through the communication of the channel I, the gas with the increased pressure in the cavity I is filled into the air bag, the pressure in the air bag is increased, gas in the gasbag enters into circular mounting groove along passageway two, finally discharges through the exhaust hole, increases the gas flow in the circular mounting groove, discharges the heat that annular light source work produced in the circular mounting groove, and high temperature in avoiding circular mounting groove leads to annular light source to damage, and simultaneously, avoids high temperature, and the hot deformation appears in the part that leads to including gear and patchhole, leads to the increase of testing result error, reduces testing result's accuracy.
Preferably, a third cavity is formed in the base; the number of the cavities is eight, and the cavities are uniformly distributed around the central line of the insertion hole; a first spring is arranged in the cavity III; a contact rod is arranged in the cavity III; the contact rods are all positioned in the circular mounting grooves and are close to the insertion holes; the cavity is positioned below the circular mounting groove; the contact rod penetrates through the toughened glass panel, and the upper end of the contact rod is positioned above the toughened glass panel; after the rotating shaft of the gear with the shaft completely enters the insertion hole, the upper end of the contact rod is just contacted with the lower surface of the gear with the shaft; the lower end of the contact rod is provided with a first conducting strip; a second conducting strip is arranged on the inner surface above the third cavity; the first conducting plate and the second conducting plate are kept in contact in a normal state; the first conducting plate and the second conducting plate are eight groups, and each group is independently and electrically connected with the processing system through a cable;
when the device works, after the gear with the shaft is placed, the lower surface of the gear is just contacted with the upper end of the contact rod, and when the gear is placed correctly or the gear is vertical to the rotating shaft, the contact rod is not extruded by a certain position of the gear, so that the corresponding first conducting strip is separated from the second conducting strip, and the processing system receives signals; when the surface of the gear is not parallel to the surface of the base, the lower surface of the gear with the shaft will extrude one of the contact rods, so that the corresponding first conducting strip is separated from the second conducting strip, so that the processing system receives the signal and sends out a prompt after receiving the signal, thereby avoiding the error of the detection result caused by the gear plane not being parallel to the base plane, and simultaneously, because the eight contact rods are uniformly distributed, after the processing system receives the separation signal, the processing system can prompt the inclination direction of the gear according to the position of the contact rod sending the signal, thereby being convenient for the adjustment of detection personnel, in the detection process, the contact rod does not send out a signal, the flatness of the gear can be determined to be in a qualified state, and simultaneously, after the separation signal appears, when the detection personnel adjusts for many times and can not release the separation signal, the inclination angle between the gear and the rotating shaft is judged, and the gear cannot be kept in a vertical state.
Preferably, the top end of the contact rod is fixedly provided with a baffle plate through a socket head cap screw; the upper surface of the baffle plate is arc-shaped; the lengths of the baffle sheets are different among different specifications; the tail end of the baffle plate exceeds the top circle range of the gear with the shaft gear;
during the operation, because the tape spool gear is made through the mode of moulding plastics, the gear surface is in the consideration of save material and convenient moulding plastics, there is the recess in the gear surface, places the completion back at the gear, separation blade and gear contact on the contact lever, guarantees through the separation blade that the contact lever does not insert gear surface recess, avoids the contact lever to influence the gear in the testing process phi to rotating, simultaneously, increases the contact surface through the separation blade, avoids gear surface damage.
The invention has the following beneficial effects:
1. according to the gear detection device for the automobile windscreen wiper transmission mechanism, the three-dimensional probe and the CCD lens are arranged, and the image method measurement is supplemented through direct contact of the probe, so that the measurement efficiency and the measurement effect are improved.
2. According to the gear detection device for the transmission mechanism of the automobile windscreen wiper, the inserting holes and the leading-in heads are arranged, so that the difficulty of gear clamping can be reduced, the parallelism between the clamped gear and the surface of the base is guaranteed, the image detection precision is improved, meanwhile, the gear rotating shaft and the base are perpendicular to each other through the arrangement of the inserting holes, and the measurement effect is further improved.
3. According to the gear detection device for the automobile windscreen wiper transmission mechanism, the contact rod is arranged, so that the perpendicularity between the gear and the rotating shaft is relatively detected, the perpendicularity between the gear and the rotating shaft is ensured to meet the requirement, the gear surface can be ensured to be always parallel to the surface of the base in the phi-direction rotating process of the gear through the contact rod, and the accuracy of a detection result is improved.
Drawings
The invention will be further explained with reference to the drawings.
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a first cross-sectional view of the present invention;
FIG. 3 is a second cross-sectional view of the present invention;
FIG. 4 is an enlarged view of a portion of FIG. 2 at A;
in the figure: the device comprises a base 1, a first cavity 11, a buffer column 111, a first channel 12, a second cavity 13, an air bag 14, a second channel 15, a circular mounting groove 16, a support 2, a movable fixing block 21, a CCD lens 22, a three-axis upright post 3, a three-dimensional probe 31, a toughened glass panel 4, a contact rod 41, a baffle plate 42, a guide head 43, an exhaust hole 44, a filter screen 441, an annular light source 45, a rotating ring 46, a first spring 47, a contact ring 5, a driving ring 6, a first gear 61, a motor 62, a second spring 63 and an ejection column 64.
Detailed Description
In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.
As shown in fig. 1 to 4, the gear detection device for the transmission mechanism of the automobile windscreen wiper comprises a base 1 and a processing system, wherein the processing system is separated from the base 1, is connected with the base 1 through a cable, and transmits data and control signals; the processing system comprises a computer and a printer; the base 1 is made of marble material; the upper surface of the base 1 is fixedly provided with a bracket 2; a movable fixed block 21 is fixedly arranged on the bracket 2 through bolts; the lower end of the movable fixed block 21 is fixedly provided with a CCD lens 22; the CCD lens 22 is opposite to the central position of the upper surface of the base 1; the upper surface of the base 1 is fixedly provided with a three-axis upright post 3; the three-axis upright post 3 is provided with a three-dimensional probe 31; the three-dimensional probe 31 can freely move along X, Y, Z three directions on the three-axis upright post 3; the upper surface of the base 1 is provided with a circular mounting groove 16; the central line of the circular mounting groove 16 is superposed with the central line of the CCD lens 22; an annular light source 45 is arranged in the circular mounting groove 16; the round mounting groove 16 is provided with a toughened glass panel 4; the toughened glass panel 4 is flush with the surface of the base 1; an insertion hole is formed in the center of the circular mounting groove 16; holes are formed in corresponding positions on the toughened glass panel 4; the rotating shaft on the gear with the shaft to be tested is inserted into the insertion hole; a motor 62 is arranged in the base 1; the motor 62 is a servo motor 62, and a first gear 61 is mounted on an output shaft of the motor 62; the first gear 61 is meshed with a rotating shaft of the gear with the shaft to drive the rotating shaft to rotate;
when the device works, the main power supply of the detection device is turned on, then, the computer in the processing system is started, the measurement program in the computer is operated, after the measurement program is operated, the gear with a shaft to be measured is placed on the base 1, the measurement program is started on the computer, the gear is started to be measured, corresponding parameters of the gear are obtained, meanwhile, when the measurement program is started to be measured, firstly, the gear on the toughened glass panel 4 is photographed through the CCD lens 22, a two-dimensional outline image of the gear is obtained, whether the gear has obvious defects and the tooth profile, the tooth direction and the tooth number of the gear are judged, after the tooth profile and the tooth direction data of the gear to be measured are obtained, the measurement program controls the three-dimensional probe 31 on the three-shaft upright post 3 to start to move, the three-dimensional probe 31 directly contacts the surface of the gear, the movement track of the, obtaining detailed parameters including tooth pitch, modulus, helix angle and reference circle of the gear, then comparing the obtained corresponding parameters with preset standard parameters by a measuring program, determining the qualified condition of the measured gear, generating a measuring result table, and printing the measuring result table by an operator through a printer for recording; in the measuring process, the rotating shaft of the gear to be measured is inserted into the insertion hole, after the rotating shaft is inserted into the insertion hole, the upper surface of the gear with the shaft is kept parallel to the upper surface of the base 1, the CCD lens 22 is convenient to shoot, the shooting effect is improved, larger errors are avoided, meanwhile, the time and difficulty for placing the gear can be effectively reduced, the detection time is shortened, the operation threshold is reduced, meanwhile, the parallelism between the surface of the gear with the shaft and the base 1 can be ensured to a certain degree by inserting the rotating shaft of the gear with the shaft into the insertion hole, meanwhile, the verticality of the rotating shaft relative to the base 1 is improved, the gear is prevented from being inclined in the placing process, the detection is influenced, larger errors are caused, the detection result is invalid, meanwhile, after the rotating shaft is completely inserted into the insertion hole, the motor 62 arranged inside the base 1 can be controlled by a measuring program, the rotating shaft is driven to move, so that the phi-direction freedom degree of the rotating shaft is eliminated in the detection process, and the measurement accuracy is improved.
As an embodiment of the present invention, a rotation ring 46 is installed at the upper end of the insertion hole; the rotating shaft of the belt shaft gear is inserted into the rotating ring 46; the upper surface of the rotating ring 46 is flush with the bottom surface of the circular mounting groove 16; the upper end of the insertion hole is provided with a leading-in head 43; the lower surface of the introduction head 43 is in contact with the upper surface of the rotating ring 46; the upper surface of the leading-in head 43 is flush with the upper surface of the toughened glass panel 4; the cross section of the lead-in head 43 is trapezoidal; a contact ring 5 is arranged in the middle of the insertion hole; the inner diameter of the contact ring 5 is larger than the diameter of a rotating shaft of the gear with the shaft; the rotating shaft penetrates through the contact ring 5; the contact ring 5 is electrically connected with a processing system through a cable; the rotating ring 46 is electrically connected with the processing system through a cable; the rotating ring 46 and the contact ring 5 can be easily replaced, and replacement spare parts with different inner diameters exist in the rotating ring and the contact ring;
when the device works, when the rotating shaft is inserted into the insertion hole, the lower end of the rotating shaft firstly contacts the leading-in head 43, the rotating shaft smoothly enters the insertion hole through the guiding of the leading-in head 43, the collision between the rotating shaft and the inner wall of the insertion hole is avoided, the detection is influenced, meanwhile, the rotating shaft is prevented from impacting the inlet of the insertion hole, the inlet of the insertion hole is prevented from being greatly abraded, the tool error is increased, the accuracy of the detection result is influenced, meanwhile, after the rotating shaft enters the insertion hole through the leading-in head 43, the rotating shaft penetrates through the rotating ring 46 and continues to move downwards, meanwhile, the rotating ring 46 penetrated by the rotating shaft can avoid the friction between the rotating shaft and the inner wall of the insertion hole in the subsequent detection process, and when the gear rotates in the phi direction under the action of the motor 62, the larger error is generated, the accuracy of the gear detection is influenced, and meanwhile, the precision of the detection device and the gear rotating shaft is reduced, the subsequent detection accuracy of the detection device is influenced, the abrasion speed of the gear is accelerated in the use process, the service life is shortened, meanwhile, after the rotating shaft penetrates through the rotating ring 46, the rotating shaft continues to downwards penetrate through the contact ring 5, finally the rotating shaft is inserted into the driving ring 6, after the rotating shaft is completely inserted, the rotating shaft does not contact with the contact ring 5, the rotating ring 46 and the contact ring 5 cannot be conducted through the rotating shaft, the circuit is communicated, a processing system cannot receive a circuit connection signal, the verticality between the rotating shaft and the base 1 is judged to be better, the rotating shaft is not inclined or bent, the rotating shaft is caused to contact with the inner wall of the insertion hole, the placing accuracy of the gear is ensured under the condition that the placing process of the gear is simple and convenient, the included angle of more than 0 degree is formed between the gear plane and the upper surface of the, influences the subsequent detection process, influences the accuracy of the detection result,
as an embodiment of the present invention, the lower end of the insertion hole is mounted with a drive ring 6; the upper end of the drive ring 6 is in contact with the insertion hole, and sliding friction is generated between the upper end and the insertion hole; the lower end of the driving ring 6 is provided with a gear segment; the gear section is meshed with the first gear 61; a plurality of mounting cavities are formed in the driving ring 6; the installation cavity is perpendicular to the central line of the driving ring 6; the mounting cavities are evenly distributed on the upper half part of the driving ring 6; the opening of the mounting cavity is positioned on the inner surface of the driving ring 6; a second spring 63 is arranged in the mounting cavity; an ejection column 64 is arranged in the mounting cavity; the top end of the ejection column 64 extends out of the mounting cavity; the top end of the ejection column 64 is circular;
when the automobile windscreen wiper is in work, after a rotating shaft is inserted into the driving ring 6, the ejection column 64 positioned on the inner surface of the upper half part of the driving ring 6 is acted by the rotating shaft and is extruded back to the mounting cavity, after the ejection column 64 is back to the mounting cavity, the ejection column 64 extrudes the spring II 63 in the mounting cavity, the spring II 63 elastically deforms, meanwhile, due to the action of the spring II 63, the ejection column 64 is acted by the reaction force of the spring II 63, the ejection column 64 has outward ejection force, so that the circular top end of the ejection column 64 is tightly attached to the surface of the rotating shaft, the rotating shaft and the driving ring 6 are relatively fixed, meanwhile, because the ejection columns 64 are uniformly distributed in the inner circumference of the driving ring 6, the rotating shaft is acted by the ejection columns 64, the center line of the rotating shaft is overlapped with the center line of the driving ring 6, meanwhile, because gears used in an automobile windscreen wiper power transmission mechanism are small, the gear is driven to rotate, meanwhile, the gear is fixed through the ejection column 64, the gear is convenient to take away after driving is completed, meanwhile, the gear section is arranged at the lower end of the driving ring 6, the gear section is meshed with the first gear 61, and the motor 62 accurately drives the gear to rotate in the phi direction under the control of a measuring program, so that sufficient and complete detection is guaranteed, measuring items are increased, and the detection effect is improved.
As an embodiment of the invention, a cavity I11 is arranged in the base 1; the first cavity 11 is cylindrical and is positioned right below the insertion hole; a buffer column 111 is arranged in the first cavity 11; the upper end of the cushion column 111 is positioned in the driving ring 6; a second cavity 13 is formed in the base 1; the second cavity 13 is positioned below the motor 62; an air bag 14 is arranged in the second cavity 13; a first channel 12 is formed in the base 1; the first cavity 11 is communicated with an air bag 14 in a second cavity 13 through a first channel 12; a one-way valve is arranged in the first passage 12, and gas enters the air bag 14 in a one-way mode; a second channel 15 is formed in the base 1; the outlet of the second channel 15 is positioned on the bottom surface of the circular mounting groove 16; the second channel 15 is communicated with the air bag 14; a one-way valve is arranged in the second channel 15; the side wall of the circular mounting groove 16 is uniformly provided with exhaust holes 44; the exhaust hole 44 is obliquely arranged, and the outlet is positioned at the outer side of the toughened glass panel 4; a filter screen 441 is arranged in the exhaust hole 44; the surface of the filter screen 441 is flush with the surface of the base 1;
when the driving ring works, when the rotating shaft is inserted into the driving ring 6, the lower end of the rotating shaft contacts the buffer column 111 first, the buffer column 111 is continuously pressed in the downward movement process of the rotating shaft, so that the buffer column 111 moves downward, meanwhile, in the downward movement process of the buffer column 111, partial resistance is provided for the insertion process of the rotating shaft, the speed of the rotating shaft inserted into the driving ring 6 is reduced, the rotating shaft is prevented from being inserted too fast, collision between the rotating shaft and the driving ring 6 is caused, the driving ring 6 is damaged, meanwhile, the lower end of the rotating shaft is prevented from colliding with the bottom surface of the insertion hole due to the too fast insertion speed of the rotating shaft, the base 1 and the rotating shaft are damaged, meanwhile, in the descending process of the buffer column 111, the space in the cavity I11 is gradually reduced, the pressure is increased, and through the communication of the channel I12, the gas with the increased pressure in the cavity I11 is filled into the air, meanwhile, after the pressure in the air bag 14 is increased, the gas in the air bag 14 enters the circular mounting groove 16 along the second channel 15 and is finally discharged through the vent hole 44, the gas flow in the circular mounting groove 16 is increased, the heat generated by the operation of the annular light source 45 in the circular mounting groove 16 is discharged, the damage of the annular light source 45 caused by overhigh temperature in the circular mounting groove 16 is avoided, meanwhile, the heat deformation of the gear and the parts in the insertion holes caused by overhigh temperature is avoided, the error of the detection result is increased, and the accuracy of the detection result is reduced.
As an embodiment of the present invention, a third cavity is formed in the base 1; the number of the cavities is eight, and the cavities are uniformly distributed around the central line of the insertion hole; a first spring 47 is arranged in the cavity III; a contact rod 41 is arranged in the cavity III; the contact rods 41 are all positioned in the circular mounting grooves 16 and are close to the insertion holes; the third cavity is positioned below the circular mounting groove 16; the contact rod 41 penetrates through the toughened glass panel 4, and the upper end of the contact rod is positioned above the toughened glass panel 4; after the rotating shaft of the gear with the shaft completely enters the insertion hole, the upper end of the contact rod 41 just contacts with the lower surface of the gear with the shaft; the lower end of the contact rod 41 is provided with a first conducting strip; a second conducting strip is arranged on the inner surface above the third cavity; the first conducting plate and the second conducting plate are kept in contact in a normal state; the first conducting plate and the second conducting plate are eight groups, and each group is independently and electrically connected with the processing system through a cable;
when the device works, after the gear with the shaft is placed, the lower surface of the gear is just contacted with the upper end of the contact rod 41, and when the gear is placed correctly or the gear is vertical to the rotating shaft, the contact rod 41 cannot be extruded by a certain position of the gear, so that the corresponding first conducting strip is separated from the second conducting strip, and a processing system receives signals; when the surface of the gear is not parallel to the surface of the base 1, the lower surface of the gear with the shaft inevitably extrudes one of the contact rods 41 to separate the corresponding first conducting strip from the corresponding second conducting strip, so that the processing system receives signals and sends out a prompt after receiving the signals, thereby avoiding the error of the detection result caused by the fact that the plane of the gear is not parallel to the plane of the base 1, meanwhile, because the contact rods 41 are eight in total and are uniformly distributed, after receiving the separation signals, the processing system can prompt the inclination direction of the gear according to the position of the contact rod 41 sending out the signals, thereby being convenient for the adjustment of detection personnel, meanwhile, in the detection process, the contact rod 41 does not send out the signals, thereby being capable of determining that the planeness of the gear is in a qualified state, meanwhile, after the separation signals appear, the detection personnel adjust for many times, when the separation signals, the vertical state cannot be maintained.
As an embodiment of the present invention, a stopper 42 is fixedly installed at the top end of the contact rod 41 by a socket head cap screw; the upper surface of the baffle plate 42 is arc-shaped; the lengths of the baffle plates 42 are different between different specifications; the tail end of the baffle plate 42 exceeds the top circle range of the gear with the shaft gear;
during operation, because the tape spool gear is made through the mode of moulding plastics, the gear surface is in the consideration of save material and convenient moulding plastics, there is the recess in the gear surface, after the gear is placed and is accomplished, separation blade 42 and gear contact on the contact lever 41 guarantee through separation blade 42 that contact lever 41 does not insert gear surface recess, avoid contact lever 41 to influence the gear in the testing process phi to rotating, simultaneously, increase the contact surface through separation blade 42, avoid gear surface damage.
The specific working process is as follows:
when the device works, the main power supply of the detection device is turned on, then, the computer in the processing system is started, the measurement program in the computer is operated, after the measurement program is operated, the gear with a shaft to be measured is placed on the base 1, the measurement program is started on the computer, the gear is started to be measured, corresponding parameters of the gear are obtained, meanwhile, when the measurement program is started to be measured, firstly, the gear on the toughened glass panel 4 is photographed through the CCD lens 22, a two-dimensional outline image of the gear is obtained, whether the gear has obvious defects and the tooth profile, the tooth direction and the tooth number of the gear are judged, after the tooth profile and the tooth direction data of the gear to be measured are obtained, the measurement program controls the three-dimensional probe 31 on the three-shaft upright post 3 to start to move, the three-dimensional probe 31 directly contacts the surface of the gear, the movement track of the, obtaining detailed parameters including tooth pitch, modulus, helix angle and reference circle of the gear, then comparing the obtained corresponding parameters with preset standard parameters by a measuring program, determining the qualified condition of the measured gear, generating a measuring result table, and printing the measuring result table by an operator through a printer for recording; in the measuring process, a rotating shaft of the gear to be measured is inserted into the insertion hole, after the rotating shaft is inserted into the insertion hole, the upper surface of the gear with the shaft is kept parallel to the upper surface of the base 1, meanwhile, after the rotating shaft is completely inserted into the insertion hole, a motor 62 arranged in the base 1 can drive the rotating shaft to move under the control of a measuring program, and the rotating shaft is taken away from the phi-direction freedom degree in the detecting process; when the rotating shaft is inserted into the insertion hole, the lower end of the rotating shaft firstly contacts the leading-in head 43, the rotating shaft can smoothly enter the insertion hole through the guiding of the leading-in head 43, meanwhile, after the rotating shaft enters the insertion hole through the leading-in head 43, the rotating shaft passes through the rotating ring 46 and continues to move downwards, meanwhile, after the rotating shaft passes through the rotating ring 46, the rotating shaft continues to move downwards and passes through the contact ring 5, finally, the rotating shaft is inserted into the driving ring 6, and after the rotating shaft is completely inserted, the rotating shaft does not contact with the contact ring 5; after the rotating shaft is inserted into the driving ring 6, the ejection column 64 positioned on the inner surface of the upper half part of the driving ring 6 is acted by the rotating shaft and is extruded back to the mounting cavity, after the ejection column 64 is back to the mounting cavity, the ejection column 64 extrudes the spring II 63 in the mounting cavity, the spring II 63 elastically deforms, meanwhile, due to the action of the spring II 63, the ejection column 64 is acted by the reaction force of the spring II 63, the ejection column 64 has outward ejection force, so that the circular top end of the ejection column 64 is tightly attached to the surface of the rotating shaft, meanwhile, the lower end of the driving ring 6 is provided with a gear section, and the motor 62 accurately drives the gear to rotate in the phi direction under the control of a measuring program through the meshing of the gear section and the gear I61; when the rotating shaft is inserted into the driving ring 6, the lower end of the rotating shaft contacts the buffer column 111 first, the buffer column 111 is continuously pressed in the downward movement process of the rotating shaft, so that the buffer column 111 moves downwards, meanwhile, in the downward movement process of the buffer column 111, partial resistance is provided for the insertion process of the rotating shaft, the speed of the rotating shaft inserted into the driving ring 6 is reduced, meanwhile, in the descending process of the buffer column 111, the space in the cavity I11 is gradually reduced, the pressure is increased, the gas with the increased pressure in the cavity I11 is filled into the air bag 14 through the communication of the channel I12, the pressure in the air bag 14 is increased, and meanwhile, after the pressure in the air bag 14 is increased, the gas in the air bag 14 enters the circular mounting groove 16 along the channel II 15 and is finally discharged through the exhaust hole 44; after the gear with the shaft is placed, the lower surface of the gear is just contacted with the upper ends of the contact rods 41, when the surface of the gear is not parallel to the surface of the base 1, the lower surface of the gear with the shaft inevitably extrudes one of the contact rods 41, so that the corresponding first conducting strip is separated from the second conducting strip, the processing system receives a signal, and a prompt is sent out after the processing system receives the signal; after the gear is placed, the stop piece 42 on the contact rod 41 contacts with the gear, and the stop piece 42 ensures that the contact rod 41 is not inserted into the gear surface groove.
The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (5)
1. The utility model provides a car wiper gear detection device for drive mechanism, includes base (1) and processing system, its characterized in that: the processing system is separated from the base (1), connected through a cable and used for transmitting data and control signals; the processing system comprises a computer and a printer; the base (1) is made of marble material; a bracket (2) is fixedly arranged on the upper surface of the base (1); a movable fixed block (21) is fixedly arranged on the bracket (2) through a bolt; the lower end of the movable fixed block (21) is fixedly provided with a CCD lens (22); the CCD lens (22) is over against the center of the upper surface of the base (1); the upper surface of the base (1) is fixedly provided with a three-axis upright post (3); a three-dimensional probe (31) is arranged on the three-axis upright post (3); the three-dimensional probe (31) can freely move along X, Y, Z three directions on the three-axis upright post (3); the upper surface of the base (1) is provided with a circular mounting groove (16); the central line of the circular mounting groove (16) is superposed with the central line of the CCD lens (22); an annular light source (45) is arranged in the circular mounting groove (16); a toughened glass panel (4) is arranged on the circular mounting groove (16); the toughened glass panel (4) is flush with the surface of the base (1); an insertion hole is formed in the center of the circular mounting groove (16); holes are formed in the corresponding positions on the toughened glass panel (4); the rotating shaft on the gear with the shaft to be tested is inserted into the insertion hole; a motor (62) is arranged in the base (1); the motor (62) is a servo motor (62), and a first gear (61) is mounted on an output shaft of the motor (62); the first gear (61) is meshed with a rotating shaft of the gear with the shaft to drive the rotating shaft to rotate;
a rotating ring (46) is arranged at the upper end of the inserting hole; the rotating shaft of the belt shaft gear is inserted into the rotating ring (46); the upper surface of the rotating ring (46) is flush with the bottom surface of the circular mounting groove (16); the upper end of the insertion hole is provided with a guide-in head (43); the lower surface of the lead-in head (43) is contacted with the upper surface of the rotating ring (46); the upper surface of the leading-in head (43) is flush with the upper surface of the toughened glass panel (4); the cross section of the leading-in head (43) is trapezoidal; a contact ring (5) is arranged in the middle of the insertion hole; the inner diameter of the contact ring (5) is larger than the diameter of a rotating shaft of the gear with the shaft; the rotating shaft penetrates through the contact ring (5); the contact ring (5) is electrically connected with a processing system through a cable; the rotating ring (46) is electrically connected with a processing system through a cable; the rotating ring (46) and the contact ring (5) can be replaced easily, and replacement spare parts with different inner diameters exist in the rotating ring and the contact ring.
2. The gear detecting device for the automobile wiper transmission mechanism of claim 1, wherein: the lower end of the insertion hole is provided with a driving ring (6); the upper end of the driving ring (6) is contacted with the insertion hole, and sliding friction is generated between the upper end of the driving ring and the insertion hole; the lower end of the driving ring (6) is provided with a gear segment; the gear section is meshed with a first gear (61); a plurality of mounting cavities are formed in the driving ring (6); the installation cavity is perpendicular to the central line of the driving ring (6); the mounting cavities are uniformly distributed on the upper half part of the driving ring (6); the opening of the mounting cavity is positioned on the inner surface of the driving ring (6); a second spring (63) is arranged in the mounting cavity; an ejection column (64) is arranged in the mounting cavity; the top end of the ejection column (64) extends out of the mounting cavity; the top end of the ejection column (64) is round.
3. The gear detecting device for the automobile wiper transmission mechanism of claim 1, wherein: a first cavity (11) is formed in the base (1); the first cavity (11) is cylindrical and is positioned right below the insertion hole; a buffer column (111) is arranged in the first cavity (11); the upper end of the buffer column (111) is positioned in the driving ring (6); a second cavity (13) is formed in the base (1); the second cavity (13) is positioned below the motor (62); an air bag (14) is arranged in the second cavity (13); a first channel (12) is formed in the base (1); the first cavity (11) is communicated with an air bag (14) in the second cavity (13) through a first channel (12); a one-way valve is arranged in the first channel (12), and gas enters the air bag (14) in a one-way mode; a second channel (15) is formed in the base (1); the outlet of the second channel (15) is positioned on the bottom surface of the circular mounting groove (16); the second channel (15) is communicated with the air bag (14); a one-way valve is arranged in the second channel (15); the side wall of the circular mounting groove (16) is uniformly provided with exhaust holes (44); the exhaust hole (44) is obliquely arranged, and the outlet is positioned on the outer side of the toughened glass panel (4); a filter screen (441) is installed in the exhaust hole (44); the surface of the filter screen (441) is flush with the surface of the base (1).
4. The gear detecting device for the automobile wiper transmission mechanism of claim 1, wherein: a third cavity is formed in the base (1); the number of the cavities is eight, and the cavities are uniformly distributed around the central line of the insertion hole; a first spring (47) is arranged in the cavity III; a contact rod (41) is arranged in the cavity III; the contact rods (41) are all positioned in the circular mounting grooves (16) and are close to the insertion holes; the third cavity is positioned below the circular mounting groove (16); the contact rod (41) penetrates through the toughened glass panel (4), and the upper end of the contact rod is positioned above the toughened glass panel (4); after the rotating shaft of the gear with the shaft completely enters the insertion hole, the upper end of the contact rod (41) is just contacted with the lower surface of the gear with the shaft; the lower end of the contact rod (41) is provided with a first conducting strip; a second conducting strip is arranged on the inner surface above the third cavity; the first conducting plate and the second conducting plate are kept in contact in a normal state; the first conducting plate and the second conducting plate are eight groups, and each group is independently and electrically connected with the processing system through cables.
5. The gear detecting device for the automobile wiper transmission mechanism as claimed in claim 4, wherein: the top end of the contact rod (41) is fixedly provided with a baffle plate (42) through an inner hexagon screw; the upper surface of the baffle plate (42) is arc-shaped; the lengths of the baffle plates (42) are different between different specifications; the end of the baffle plate (42) exceeds the top circle range of the gear with the shaft.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010736366.0A CN111665248B (en) | 2020-07-28 | 2020-07-28 | Gear detection device for automobile windscreen wiper transmission mechanism |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010736366.0A CN111665248B (en) | 2020-07-28 | 2020-07-28 | Gear detection device for automobile windscreen wiper transmission mechanism |
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| CN111665248B true CN111665248B (en) | 2021-01-08 |
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| CN111665248A (en) | 2020-09-15 |
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Denomination of invention: A gear detection device for automobile wiper transmission mechanism Effective date of registration: 20220406 Granted publication date: 20210108 Pledgee: Zhejiang Shaoxing Ruifeng Rural Commercial Bank Co.,Ltd. Wangtan sub branch Pledgor: ZHEJIANG JIEZHONG SCIENCE & TECHNOLOGY Co.,Ltd. Registration number: Y2022330000465 |
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Date of cancellation: 20230906 Granted publication date: 20210108 Pledgee: Zhejiang Shaoxing Ruifeng Rural Commercial Bank Co.,Ltd. Wangtan sub branch Pledgor: ZHEJIANG JIEZHONG SCIENCE & TECHNOLOGY Co.,Ltd. Registration number: Y2022330000465 |