CN118274680B - Differential mechanism planetary gear spherical surface multi-point detection device and method - Google Patents
Differential mechanism planetary gear spherical surface multi-point detection device and method Download PDFInfo
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- 238000001514 detection method Methods 0.000 title claims abstract description 151
- 230000007246 mechanism Effects 0.000 title claims abstract description 69
- 238000000034 method Methods 0.000 title claims abstract description 13
- 230000002457 bidirectional effect Effects 0.000 claims description 17
- 238000004140 cleaning Methods 0.000 claims description 15
- 230000000979 retarding effect Effects 0.000 claims description 14
- 238000009423 ventilation Methods 0.000 claims description 5
- 239000007787 solid Substances 0.000 claims description 2
- 238000005259 measurement Methods 0.000 abstract description 6
- 239000012535 impurity Substances 0.000 description 6
- 238000005299 abrasion Methods 0.000 description 5
- 230000002035 prolonged effect Effects 0.000 description 5
- 238000010586 diagram Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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- 238000004441 surface measurement Methods 0.000 description 1
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Abstract
The invention discloses a differential mechanism planetary gear spherical surface multi-point detection device and method, and relates to the technical field of measurement devices. Wherein a differential mechanism planetary gear sphere multiposition detection device includes: the device comprises a base, a detection table, a lifting piece, a transverse frame, a rotary driving piece and a detection mechanism, wherein the detection mechanism is positioned above the detection table and corresponds to the detection table; the detection mechanism comprises an arc plate, a disc, a first spring and a plurality of dial gauges, wherein the detection ends of all the dial gauges extend out of the bottom of the arc plate and are in sliding fit with the arc plate, and all the dial gauges are distributed at intervals along the central line of the arc plate. According to the differential mechanism planetary gear spherical surface multi-point position detection device, the lifting piece drives the detection mechanism to move up and down through the transverse frame, and the dial indicator performs multi-point position detection on the spherical surface of the planetary gear to be detected through the cooperation of the rotary driving piece and the arc plate, the disc, the first spring and the dial indicator in the detection mechanism, so that the device can comprehensively evaluate the quality of the planetary gear spherical surface.
Description
Technical Field
The invention relates to the technical field of measuring devices, in particular to a differential mechanism planetary gear spherical surface multi-point position detecting device and method.
Background
The planetary gear spherical surface detection device is equipment for detecting the spherical surface quality and precision of a planetary gear. The method monitors and records the geometric shape, the surface smoothness and the dimensional accuracy of the spherical surface of the planet gear in real time through a precise measurement technology so as to ensure that the spherical surface meets the design requirements and the manufacturing standards.
Patent publication number CN205332974U discloses a planetary gear's sphere detection device, by the locating shaft, sphere detects backup plate and rivet constitution, radial a half axial plane of making on the locating shaft, radial through rivet setting sphere detection backup plate on this half axial plane, the preceding terminal surface system of this sphere detection backup plate has an arcuation to detect the sphere, wait to detect planetary gear's shaft hole coaxial insert locating shaft back planetary gear's sphere and the arcuation that the preceding terminal surface of sphere detection backup plate made to cooperate. Therefore, the spherical diameters of different positions of the spherical surface of the planet gear can be detected, the detection mode is line contact detection, and the detection is more accurate and stable.
However, the following problems still exist in the current spherical surface detection device: the spherical surface detection device is inconvenient to detect a plurality of points of the spherical surface of the planetary gear when detecting the spherical surface of the planetary gear, and only detects a few points of the spherical surface, so that local defects or flaws in other areas of the spherical surface of the planetary gear can be missed, the detection result is inaccurate, and the quality of the spherical surface of the planetary gear cannot be comprehensively estimated.
Disclosure of Invention
The invention aims to provide a differential mechanism planet gear spherical surface multi-point position detection device and method, which are used for solving the problems that the existing planet gear spherical surface detection device cannot detect a plurality of points of a planet gear spherical surface, so that a detection result is inaccurate and the quality of the planet gear spherical surface cannot be comprehensively estimated.
The technical scheme for solving the technical problems is as follows:
A differential mechanism planetary gear sphere multiposition detection device includes: the device comprises a base, a detection table arranged on the base, a lifting piece vertically arranged on one side of the top of the base, a transverse frame transversely arranged on the top of the output end of the lifting piece, a rotary driving piece arranged on the top of one end of the transverse frame far away from the lifting piece, and a detection mechanism positioned below the transverse frame and connected with a rotating shaft of the rotary driving piece, wherein the detection mechanism is positioned above the detection table and corresponds to the detection table;
The detection mechanism comprises an arc plate connected with a rotating shaft of the rotary driving piece, a disc sleeved on the rotating shaft of the rotary driving piece, a first spring connected between the top of the arc plate and the bottom of the disc, and a plurality of dial indicators arranged at the bottom of the disc, wherein detection ends of all the dial indicators extend out of the bottom of the arc plate and are in sliding fit with the arc plate, and all the dial indicators are distributed along the central line of the arc plate at intervals.
Further, the top edge of above-mentioned disc is provided with solid fixed ring, and gu fixed ring's top inboard is provided with the recess ring, and a plurality of triangle recess has been seted up to the bottom of recess ring, and the lateral wall that the lifting part was kept away from to the crossbearer is provided with L shape post, and the tip that the crossbearer was kept away from to L shape post contacts with the bottom of recess ring.
Further, the top of the arc plate and the position close to the edge are vertically provided with a sleeve, the bottom of the disc is provided with a plunger which is in sliding fit with the sleeve, and the outer wall of the plunger is provided with a limiting sleeve for limiting the position of the plunger.
Further, a retarding mechanism is arranged in the middle of the detection table;
The retarding mechanism comprises a cylindrical column, a square rod, a buffer disc, a second spring, a threaded rod and a through hole frame, wherein the cylindrical column is arranged in the middle of the detection table and corresponds to the arc plate, the square rod is vertically arranged on the inner bottom wall of the cylindrical column, the buffer disc is sleeved on the square rod and is in sliding fit with the inner bottom wall of the cylindrical column, the second spring is connected between the buffer disc and the inner bottom wall of the cylindrical column, the threaded rod is arranged at the top of the buffer disc, the through hole frame is arranged between the top inner walls of the cylindrical column and is positioned above the buffer disc, the through hole frame is in sliding fit with the threaded rod, and the top end of the square rod stretches into the threaded rod and is in sliding fit with the threaded rod.
Further, the retarding mechanism further comprises a swivel screwed on the outer wall of the threaded rod and in running fit with the bottom of the through hole frame, and a plurality of blades arranged on the outer wall of the swivel at intervals, and the cylinder column is provided with a vent corresponding to the position of each blade.
Further, the vent is formed in the top side wall of the cylindrical column.
Further, a positioning and clamping mechanism for clamping the planetary gear is arranged on the base; the positioning and clamping mechanism comprises a U-shaped frame arranged on the base and positioned below the detection table, a bidirectional screw rod rotationally connected between two side walls of the U-shaped frame, a motor arranged on one side of the U-shaped frame and used for driving the bidirectional screw rod to rotate, and two clamping plates which are respectively in threaded connection with two ends of the bidirectional screw rod and correspond to the cylindrical columns, wherein the bottoms of the clamping plates are in sliding fit with the U-shaped frame, and through grooves which are in sliding fit with the clamping plates are formed in two sides of the detection table.
Further, the positioning and clamping mechanism further comprises a sliding plate, a third spring, L-shaped frames and a cleaning brush roller, wherein the sliding plate is arranged on one side of the two clamping plates, close to each other, the third spring is connected between the sliding plate and the corresponding clamping plate, the L-shaped frames are respectively arranged on two sides of the top end of the sliding plate, the cleaning brush roller is rotatably connected between the two L-shaped frames, the sliding plate is located below the detection table, a hinge rod is hinged between the side edge of the sliding plate and the side wall of the cylindrical column, and the cleaning brush roller is in contact with the clamping plates.
Further, the side wall of the sliding plate far away from the clamping plate is transversely provided with a telescopic rod, and the telescopic end of the telescopic rod is in sliding fit with the outer wall of the cylindrical column.
The invention also provides a differential mechanism planetary gear spherical surface multi-point position detection method, which comprises the following steps:
S1, cleaning a detection table, placing a standard planetary gear on the detection table, starting a lifting piece and driving a transverse frame and a detection mechanism to move downwards until the cambered surface of an arc plate contacts with the spherical surface of the standard planetary gear, reading and recording indication values of all dial indicators, and driving the detection mechanism to reset by the lifting piece;
S2, taking down the standard planetary gear, placing the planetary gear to be detected on a detection table, starting a lifting piece and driving a detection mechanism to move downwards until the cambered surface of the arc plate is in contact with the spherical surface of the planetary gear to be detected, and reading and recording an indication value of a dial indicator;
S3, judging the spherical error of the planetary gear to be detected according to the indication values of the dial indicators in the step S1 and the step S2, and if the error value is within the allowable range, judging the planetary gear to be detected as a qualified product, otherwise, judging the planetary gear to be detected as a unqualified product;
s4, driving the rotary driving piece to rotate, enabling the detection end of the dial indicator to slide along the arc plate and be contained in the sliding hole of the arc plate, wherein the detection end of the dial indicator is not in contact with the spherical surface of the planetary gear to be detected;
S5, driving the rotary driving piece to rotate, driving the arc plate and the disc to rotate together by the rotary driving piece, and driving the dial indicator to rotate, wherein under the elastic force action of the first spring corresponding to the disc, the disc pushes the detection end of the dial indicator to extend out of the sliding hole of the arc plate and contact with the spherical surface of the planetary gear to be detected, so that multi-point detection of the spherical surface of the planetary gear is realized.
The invention has the following beneficial effects:
(1) According to the differential mechanism planetary gear spherical surface multi-point detection device, the lifting piece drives the detection mechanism to move up and down through the transverse frame, and the dial indicator performs multi-point detection on the spherical surface of the planetary gear to be detected through the cooperation of the rotary driving piece and the arc plate, the disc, the first spring and the dial indicator in the detection mechanism, so that the device can comprehensively evaluate the quality of the planetary gear spherical surface; meanwhile, the disc, the fixed ring, the groove ring, the L-shaped column and the dial indicator are matched, and in the process that the arc plate drives the dial indicator to rotate, the detection end of the dial indicator is not contacted with the spherical surface of the planetary gear to be detected, so that the situation that the detection end of the dial indicator rubs with the spherical surface of the planetary gear to be detected to cause abrasion is avoided, and the service cycle of the dial indicator is prolonged; simultaneously under the elasticity effect of the first spring that the disc corresponds, the disc drives inserted bar and stop collar downwardly moving, and the sleeve can restrict the position of stop collar to ensure to keep invariable interval between disc and the arc board, thereby guaranteed invariable interval between amesdial and the arc board, and then reduced the probability that measuring error appears in the amesdial.
(2) According to the invention, the retarding mechanism is arranged, when the lifting piece drives the arc plate to move downwards, the arc plate can push the threaded rod to move downwards, the threaded rod can push the buffer disc to move downwards in the cylindrical column along the square rod, the corresponding second spring of the buffer disc is compressed, the arc plate can be buffered to move downwards under the action of the elastic force of the corresponding second spring, the impact force of the dial indicator leaning against the spherical surface of the planetary gear is reduced, and the abrasion speed of the dial indicator is further facilitated to be slowed down, so that the service life of the dial indicator is prolonged; when the planetary gear is not placed on the surface of the detection platform, the lifting piece is started and drives the arc plate to move downwards, the arc plate drives the threaded rod to move downwards, the through hole frame is matched with the rotating ring, the rotating ring is driven to rotate along the threaded rod, the blades are driven to rotate, wind flow generated by rotation of the blades is discharged through the ventilation opening of the cylindrical column, and then impurities on the surface of the detection platform are blown away, so that the problem that the local tilting of the planetary gear is influenced by the impurities when the planetary gear to be detected is placed is avoided, and the spherical detection error of the planetary gear is caused.
(3) According to the invention, the positioning clamping mechanism is arranged, the motor drives the bidirectional screw rod to rotate, so that the two clamping plates are driven to be close to or far away from each other, and the clamping, positioning and loosening of the planetary gear to be detected are realized, so that the planetary gear to be detected is ensured to be stably positioned at the center of the detection table, and the measurement error is further reduced; meanwhile, the sliding plate, the third spring, the L-shaped frame, the cleaning brush roller and the hinging rod are matched, the cleaning brush roller can be driven to clean the side surfaces of the two clamping plates, the problem that the clamping of the planetary gear to be detected is unstable due to uneven surfaces of the clamping plates caused by impurities is avoided, and the problem that the spherical surface measurement precision of the planetary gear to be detected is further avoided.
Drawings
FIG. 1 is a schematic diagram of the overall structure of a differential planetary gear spherical multi-point detection device;
FIG. 2 is a schematic diagram of the structure of the detection mechanism;
FIG. 3 is a schematic diagram of a partial structure of a differential planetary gear spherical multi-point detection device;
FIG. 4 is a schematic cross-sectional view of a retarding mechanism;
fig. 5 is a schematic structural view of the positioning and clamping mechanism.
In the figure: 1. a base; 2. a detection table; 21. a through groove; 3. a lifting member; 4. a cross frame; 5. a rotary driving member; 6. a detection mechanism; 61. an arc plate; 62. a disc; 63. a first spring; 64. a dial gauge; 65. a fixing ring; 66. a groove ring; 661. triangular grooves; 67. an L-shaped column; 68. a sleeve; 69. a rod; 610. a limit sleeve; 7. a retarding mechanism; 71. a cylindrical column; 72. square rods; 73. a buffer tray; 74. a second spring; 75. a threaded rod; 76. a through hole frame; 77. a swivel; 78. a blade; 8. positioning and clamping mechanisms; 81. a U-shaped frame; 82. a bidirectional screw; 83. a clamping plate; 84. a slide plate; 85. a third spring; 86. an L-shaped frame; 87. cleaning a brush roller; 88. a hinge rod; 89. a telescopic rod.
Detailed Description
The principles and features of the present invention are described below with reference to the drawings, the examples are illustrated for the purpose of illustrating the invention and are not to be construed as limiting the scope of the invention.
As shown in fig. 1 to 3, in an embodiment of the present invention, there is provided a differential planetary gear spherical multi-point detection device, including: the base 1, be provided with detection platform 2 on the base 1, detection platform 2 includes three supporting legs, and fix the round platform at three supporting legs top, detection platform 2 is fixed in the top central point department of base 1, top one side of base 1 is provided with lifter 3, lifter 3 can adopt electric telescopic handle, lead screw slip table mechanism etc. the output top of lifter 3 transversely is provided with crossbeams 4, the one end top that lifter 3 was kept away from to crossbeams 4 is provided with rotary drive spare 5, rotary drive spare 5 adopts the twist grip, and be located the below of crossbeams 4 and with rotary drive spare 5's detection mechanism 6 that the tip of lifter 3 has been seted up, the mounting hole internal fixation has the bearing with twist grip's pivot complex, twist grip's pivot passes the bearing in the mounting hole on the crossbeams 4 and is connected with detection mechanism 6, detection mechanism 6 is located the top of detection platform 2 and corresponds with detection platform 2.
Specifically, the detection mechanism 6 includes an arc plate 61 that is cooperatively connected with the rotating shaft of the rotary driving member 5, the rotating shaft of the rotary handle passes through the mounting hole on the transverse frame 4 and is connected with the top of the arc plate 61, a disc 62 that is sleeved on the rotating shaft of the rotary driving member 5 is fixed in the middle of the disc 62, a vertical sleeve that is matched with the rotating shaft of the rotary driving member 5 is fixed in the middle of the disc 62, a certain interval is provided between the top of the vertical sleeve and the bottom of the transverse frame 4, a first spring 63 is connected between the top of the arc plate 61 and the bottom of the disc 62, the first spring 63 is sleeved on the rotating shaft of the rotary driving member 5, and a plurality of dial indicators 64 are arranged at the bottom of the disc 62, in this embodiment, 3 dial indicators 64 are arranged, three vertically distributed connecting rods are sequentially fixed at the bottom of the disc 62 in radial direction and are respectively connected with the top of the three dial indicators 64, three sliding holes corresponding to the dial indicators 64 are provided on the arc plate 61, the detection ends of all dial indicators 64 extend out of the bottom of the arc plate 61 and are slidingly matched with the arc plate 61, and all dial indicators 64 are distributed along the interval of the center line of the arc plate 61. In other embodiments of the present invention, the number of dial indicators 64 may be 4,5, 6, etc., and the dial indicators 64 may be located on the same side, or may be distributed on two sides of the bottom of the disc 62, and may be symmetrical to each other, and all the dial indicators 64 only need to correspond to the center line of the arc plate 61, which is not limited herein. The rotary driving piece 5 is driven to rotate manually, so that the arc plate 61 is driven to rotate, the arc plate 61 drives the disc 62 and the dial indicator 64 to rotate, and therefore the positions of the arc plate 61 and the dial indicator 64 can be changed, and the dial indicator 64 can detect the spherical surface of the planetary gear to be detected in multiple points; the bottom of the arc plate 61 in this embodiment matches the standard planetary gear sphere.
As shown in fig. 2, the top edge of the disc 62 is provided with a fixing ring 65, the top inner side of the fixing ring 65 is provided with a groove ring 66, the bottom of the groove ring 66 is provided with a plurality of triangular grooves 661, the side wall of the transverse frame 4 far away from the lifting member 3 is provided with an L-shaped column 67, the rod part of the L-shaped column 67 far away from the transverse frame 4 is in a cylindrical structure, and the end part of the L-shaped column 67 far away from the transverse frame 4 is in contact with the bottom of the groove ring 66.
Wherein, the top of arc board 61 and be close to the vertical sleeve 68 that is provided with in marginal position department, the bottom of disc 62 is provided with the inserted link 69 with sleeve 68 sliding fit, the internal diameter of sleeve 68 and the external diameter phase-match of inserted link 69, the outer wall of inserted link 69 is provided with the stop collar 610 that is used for limiting the position of inserted link 69.
When the detection platform is used, a standard planetary gear is placed on the detection platform 2, at the moment, the L-shaped column 67 is positioned in the triangular groove 661 of the groove ring 66, meanwhile, the detection end of the dial indicator 64 extends out of the sliding hole of the arc plate 61, the lifting piece 3 is started and drives the transverse frame 4 and the detection mechanism 6 to move downwards until the cambered surface of the arc plate 61 contacts with the spherical surface of the standard planetary gear, a worker reads and records the indication values of all the dial indicators 64, and the lifting piece 3 drives the detection mechanism 6 to move upwards; and taking down the standard planetary gear, placing the planetary gear to be detected on the detection table 2, starting the lifting piece 3, enabling the cambered surface of the arc plate 61 to be in contact with the spherical surface of the planetary gear to be detected, reading indicated values of all dial indicators 64 by a worker, judging spherical errors according to the measurement results, and judging that the errors are qualified products within the allowable range, otherwise, judging that the errors are unqualified products.
When the spherical surface of the planetary gear to be detected needs to be detected in a multi-point mode, the rotary driving piece 5 is manually driven to rotate, the arc plate 61, the disc 62 and the dial indicator 64 are driven to rotate, the disc 62 drives the fixed ring 65 and the groove ring 66 to rotate, at the moment, the L-shaped column 67 moves out of the triangular groove 661 of the groove ring 66, the L-shaped column 67 can prop against the bottom surface of the groove ring 66 and drive the groove ring 66 to move upwards, the groove ring 66 drives the disc 62 to move upwards through the fixed ring 65, the disc 62 drives the dial indicator 64 to move upwards, and at the moment, the detection end of the dial indicator 64 is located in the sliding hole of the arc plate 61 and is not in contact with the spherical surface of the planetary gear to be detected, so that the problem that abrasion occurs due to friction between the detection end of the dial indicator 64 and the spherical surface of the planetary gear to be detected in the rotation process of the arc plate 61 is avoided, and the service cycle of the dial indicator 64 is prolonged. When the L-shaped column 67 moves to the next triangular groove 661 of the groove ring 66, the rotation of the rotary driving piece 5 is stopped, the disc 62 drives the detection end of the dial indicator 64 to extend out of the sliding hole of the arc plate 61 under the action of the elastic force of the first spring 63 and to be in contact with the spherical surface of the planetary gear to be detected, and the staff reads the numerical value of the dial indicator 64 and judges the spherical error, so that the dial indicator 64 can perform multi-point detection on the spherical surface of the planetary gear to be detected, and the quality of the spherical surface of the planetary gear can be comprehensively evaluated by the device. Meanwhile, when the disc 62 moves downwards to reset under the action of the elastic force of the first spring 63, the disc 62 drives the insert rod 69 and the limiting sleeve 610 to move downwards, the sleeve 68 can limit the position of the limiting sleeve 610, so that a constant distance is kept between the disc 62 and the arc plate 61, the distance between the disc 62 and the dial indicator 64 and the spherical surface of the planetary gear is limited, and the probability of measuring errors of the dial indicator 64 is reduced.
As shown in fig. 4, the middle part of the detecting table 2 is provided with a retarding mechanism 7, and the retarding mechanism 7 is used for retarding the speed of the dial indicator 64 leaning against the spherical surface of the planetary gear to be detected, so that the impact force of the dial indicator 64 leaning against the spherical surface of the planetary gear to be detected is reduced, the abrasion speed of the dial indicator 64 is further reduced, and the service life is prolonged.
The retarding mechanism 7 comprises a cylindrical column 71 which is arranged in the middle of the detection table 2 in a penetrating manner and corresponds to the arc plate 61, and the top of the cylindrical column 71 is higher than the detection table 2, so that a planetary gear to be detected can be conveniently placed; the square rod 72 is vertically arranged on the inner bottom wall of the cylindrical column 71, the square rod 72 is positioned at the bottom center of the cylindrical column 71, the buffer disc 73 is sleeved on the square rod 72 and is in sliding fit with the inner part of the cylindrical column 71, and the buffer disc 73 is provided with a through hole matched with the rod part of the square rod 72, so that the square rod 72 can move up and down, and the size of the buffer disc 73 is matched with the inner diameter of the cylindrical column 71; a second spring 74 connected between the buffer disk 73 and the inner bottom wall of the cylindrical column 71, the second spring 74 serving as a buffer; the top end of the threaded rod 75 extends out of the cylindrical column 71 and is higher than the top surface of the cylindrical column 71, the inside of the threaded rod 75 is hollow, the top end of the square rod 72 extends into the threaded rod 75 and is in sliding fit with the threaded rod 75, and square holes matched with the square rod 72 are formed in the threaded rod 75; and a through hole frame 76 arranged between the top end inner walls of the cylindrical columns 71 and positioned above the buffer disc 73, wherein the through hole frame 76 is in sliding fit with the threaded rod 75, two ends of the through hole frame 76 are fixedly connected with the inner walls of the cylindrical columns 71, and a through hole for facilitating the threaded rod 75 to pass through is formed in the middle of the through hole frame 76.
When the lifting member 3 drives the arc plate 61 to move downwards, the arc plate 61 can push the threaded rod 75 to move downwards along the through hole frame 76, the threaded rod 75 can simultaneously drive the buffer disc 73 to move downwards along the square rod 72, the buffer disc 73 compresses the second spring 74, and the downward moving force of the arc plate 61 can be buffered under the elastic force of the second spring 74, so that the speed of the dial indicator 64 leaning against the spherical surface of the planetary gear to be detected is slowed down.
Specifically, the retarding mechanism 7 further comprises a swivel 77 which is in threaded connection with the outer wall of the threaded rod 75 and is in running fit with the bottom of the through hole frame 76, and a plurality of blades 78 which are arranged on the outer wall of the swivel 77 at intervals, all the blades 78 are uniformly fixed on the outer wall of the swivel 77 at equal intervals, and a ventilation opening corresponding to the positions of the blades 78 is formed in the cylindrical column 71; the vent is opened in the top side wall of the cylindrical column 71. The internal thread with threaded rod 75 outer wall external screw thread complex is seted up to the inner wall of swivel 77, and the middle part downside of through-hole frame 76 is fixed with the annular piece, and the annular channel that matches with the annular piece has been seted up at the top of swivel 77 to the inside upside of annular channel is fixed with the spacing ring that is used for spacing, has realized swivel 77 and the rotation connection of through-hole frame 76.
When the threaded rod 75 moves downwards along the through hole frame 76, the rotating ring 77 is limited by the spiral groove of the threaded rod 75, the threaded rod 75 drives the rotating ring 77 to rotate, the rotating ring 77 drives the blades 78 to rotate, the blades 78 generate wind flow to be discharged through the ventilation openings of the cylindrical columns 71, and the discharged wind flow can blow impurities adhered to the surface of the detection table 2 away from the detection table 2, so that the problem that the planet gear is partially tilted due to the fact that the impurities can influence the planet gear is avoided in the process of placing the planet gear at the top of the detection table 2, and the problem of a planet gear spherical surface detection error is caused.
As shown in fig. 5, a positioning and clamping mechanism 8 for clamping the planetary gear is arranged on the base 1; the positioning and clamping mechanism 8 comprises a U-shaped frame 81 arranged on the base 1 and positioned below the detection table 2, the U-shaped frame 81 is positioned below the cylindrical column 71, a bidirectional screw 82 is rotatably connected between two side walls of the U-shaped frame 81, two ends of the bidirectional screw 82 are provided with two sections of screws with equal screw pitches, teeth, large diameters, medium diameters, small diameters and the like, and the screw threads are opposite in rotation direction; the motor is arranged on one side of the U-shaped frame 81 and used for driving the bidirectional screw rod 82 to rotate, the motor is fixed on one side of the U-shaped frame 81 through bolts, through holes corresponding to the bidirectional screw rod 82 are formed in the U-shaped frame 81, and an output shaft of the motor penetrates through the through holes in the U-shaped frame 81 and is connected with the bidirectional screw rod 82 in a matched mode; the two clamping plates 83 are respectively connected to the two ends of the bidirectional screw rod 82 in a threaded manner and correspond to the cylindrical columns 71, the bottoms of the clamping plates 83 are in sliding fit with the U-shaped frame 81, the bottom plate of the U-shaped frame 81 is fixed on the base 1, the bottom plate of the U-shaped frame 81 is provided with a sliding groove in sliding fit with the clamping plates 83, the height of the clamping plates 83 is higher than that of the detection table 2, and the two sides of the detection table 2 are provided with through grooves 21 in sliding fit with the clamping plates 83; when the motor drives the bidirectional screw 82 to rotate, the two clamping plates 83 can be driven to be close to or far away from each other, and when the two clamping plates 83 are close to each other, the two clamping plates can slide along the through groove 21 on the detection table 2 and are used for clamping and fixing the planetary gear to be detected, so that the planetary gear to be detected is ensured to be stably positioned in the center of the detection table 2, and the measurement error of the spherical surface of the planetary gear is further reduced.
Specifically, the positioning and clamping mechanism 8 further includes sliding plates 84 slidably disposed on one sides of the two clamping plates 83, where the width of the two sliding plates 84 is slightly larger than that of the clamping plates 83, two sliding blocks are disposed on two sides of the sliding plates 84 along the direction close to the clamping plates 83, and the two sliding blocks are disposed on two sides of the clamping plates 83, and a sliding cavity slidably matched with the clamping plates 83 is formed by combining the sliding blocks with the sliding plates 84; a third spring 85 connected between the slide plate 84 and the corresponding clamping plate 83, the third spring 85 being connected between the bottom of the slide plate 84 and the clamping plate 83; l-shaped frames 86 respectively arranged at two sides of the top end of the sliding plate 84, wherein the L-shaped frames 86 in the embodiment are fixed at two sides of the top end of the sliding plate 84 far away from the clamping plate 83, and the L-shaped frames 86 are arranged upside down; and rotate the cleaning brush roll 87 connected between two L-shaped frames 86, the slide plate 84 is located below the detecting table 2, the hinge rod 88 is hinged between the side edge of the slide plate 84 and the side wall of the cylinder 71, specifically, the hinge rod 88 can be two, and is located at two sides of the slide plate 84 respectively, so that the stability of the structure is improved, and the cleaning brush roll 87 is contacted with the clamping plate 83.
The side wall of the slide plate 84 away from the clamping plate 83 is transversely provided with a telescopic rod 89, and the telescopic end of the telescopic rod 89 is in sliding fit with the outer wall of the cylindrical column 71. The telescopic rod 89 comprises an outer tube and an inner rod which is in sliding fit with the inner portion of the outer tube, the end portion of the inner rod is connected with the side wall of the sliding plate 84, which is far away from the clamping plate 83, a sliding groove corresponding to the outer tube is formed in the outer wall of the cylindrical column 71, the end portion of the outer tube is in sliding fit with the sliding groove of the outer wall of the cylindrical column 71, and therefore stability of the sliding plate 84 during sliding along the clamping plate 83 is guaranteed.
When the planetary gear to be detected is placed on the detection table 2, the motor drives the bidirectional screw 82 to rotate, the bidirectional screw 82 drives the two clamping plates 83 to move along the direction of the center of the U-shaped frame 81, the two clamping plates 83 move into the through groove 21 of the detection table 2 and clamp and fix the planetary gear, so that the planetary gear is ensured to be stably positioned at the center of the detection table 2, and the measurement error of the spherical surface of the planetary gear is further reduced; meanwhile, in the moving process of the two clamping plates 83, the hinging rod 88 can push the sliding plate 84 to move downwards along the outer wall of the clamping plates 83, the sliding plate 84 drives the cleaning brush roller 87 to move downwards through the L-shaped frame 86, the cleaning brush roller 87 can clean the surface of the clamping plates 83, and therefore the problems that the surface of the clamping plates 83 is uneven due to impurities, the clamping of the planetary gears is unstable, and the measuring accuracy of the spherical surfaces of the planetary gears is affected are avoided.
In another embodiment of the invention, a method for detecting spherical multiple points of a planetary gear of a differential mechanism is provided, which comprises the following steps:
S1, cleaning a detection table 2, placing a standard planetary gear on the detection table 2, starting a lifting piece 3 and driving a transverse frame 4 and a detection mechanism 6 to move downwards until the cambered surface of an arc plate 61 contacts with the spherical surface of the standard planetary gear, reading and recording indication values of all dial indicators 64, and driving the detection mechanism 6 to reset by the lifting piece 3;
When the planetary gear is not placed, the lifting piece 3 is started, the lifting piece 3 drives the arc plate 61 in the detection mechanism 6 to move downwards, the arc plate 61 pushes the threaded rod 75 to move downwards along the through hole frame 76, the threaded rod 75 drives the swivel 77 and the blades 78 to rotate, and wind flow generated by the blades 78 is discharged through the ventilation opening of the cylindrical column 71, so that the surface of the detection table 2 is cleaned.
S2, taking down a standard planetary gear, placing the planetary gear to be detected on the detection table 2, starting the lifting piece 3 and driving the detection mechanism 6 to move downwards until the cambered surface of the arc plate 61 contacts with the spherical surface of the planetary gear to be detected, and reading and recording the indication value of the dial indicator 64;
S3, judging the spherical error of the planetary gear to be detected according to the indication values of the dial indicators 64 in the step S1 and the step S2, and if the error value is within the allowable range, judging the planetary gear to be detected as a qualified product, otherwise, judging the planetary gear to be detected as a non-qualified product;
S4, driving the rotary driving piece 5 to rotate, enabling the detection end of the dial indicator 64 to slide along the arc plate 61 and be contained in a sliding hole of the arc plate 61, wherein the detection end of the dial indicator 64 is not in contact with the spherical surface of the planetary gear to be detected;
In the above steps, the rotation driving member 5 is manually driven to rotate, and then the arc plate 61, the disc 62 and the dial indicator 64 are driven to rotate, the disc 62 drives the fixed ring 65 and the groove ring 66 to rotate, at this time, the L-shaped column 67 moves out of the triangular groove 661 of the groove ring 66, the L-shaped column 67 can prop against the bottom surface of the groove ring 66 and drive the groove ring 66 to move upwards, the groove ring 66 drives the disc 62 to move upwards through the fixed ring 65, the disc 62 drives the dial indicator 64 to move upwards, at this time, the detection end of the dial indicator 64 is located in the sliding hole of the arc plate 61 and is not contacted with the spherical surface of the planetary gear to be detected, so that the problem that abrasion occurs due to friction between the detection end of the dial indicator 64 and the spherical surface of the planetary gear to be detected in the rotation process of the arc plate 61 is avoided, and the service cycle of the dial indicator 64 is prolonged.
S5, driving the rotary driving piece 5 to rotate, driving the arc plate 61 and the disc 62 to rotate together by the rotary driving piece 5, driving the dial indicator 64 to rotate, and pushing the detection end of the dial indicator 64 to extend out of the sliding hole of the arc plate 61 by the disc 62 under the elastic force of the first spring 63 corresponding to the disc 62, and enabling the detection end to be in contact with the spherical surface of the planetary gear to be detected, so that multi-point detection of the spherical surface of the planetary gear is achieved.
In the above steps, when the L-shaped column 67 moves to the next triangular groove 661 of the groove ring 66, the rotation of the rotary driving member 5 is stopped, and the disc 62 drives the detection end of the dial indicator 64 to extend out of the sliding hole of the arc plate 61 and contact with the spherical surface of the planetary gear to be detected under the action of the elastic force of the first spring 63, so that the staff can conveniently read the numerical value of the dial indicator 64 and judge the spherical error, and the dial indicator 64 can perform multi-point detection on the spherical surface of the planetary gear to be detected.
The foregoing description of the preferred embodiments of the invention is not intended to limit the invention to the precise form disclosed, and any such modifications, equivalents, and alternatives falling within the spirit and scope of the invention are intended to be included within the scope of the invention.
Claims (9)
1. The utility model provides a differential mechanism planetary gear sphere multiposition detection device which characterized in that includes: the device comprises a base (1), a detection table (2) arranged on the base (1), a lifting piece (3) vertically arranged on one side of the top of the base (1), a transverse frame (4) transversely arranged at the top of the output end of the lifting piece (3), a rotary driving piece (5) arranged at the top of one end of the transverse frame (4) far away from the lifting piece (3), and a detection mechanism (6) positioned below the transverse frame (4) and connected with a rotating shaft of the rotary driving piece (5), wherein the detection mechanism (6) is positioned above the detection table (2) and corresponds to the detection table (2);
The detection mechanism (6) comprises an arc plate (61) connected with the rotating shaft of the rotary driving piece (5), a disc (62) sleeved on the rotating shaft of the rotary driving piece (5), a first spring (63) connected between the top of the arc plate (61) and the bottom of the disc (62), and a plurality of dial indicators (64) arranged at the bottom of the disc (62), wherein the detection ends of all the dial indicators (64) extend out of the bottom of the arc plate (61) and are in sliding fit with the arc plate (61), and all the dial indicators (64) are distributed at intervals along the central line of the arc plate (61);
The top edge of disc (62) is provided with solid fixed ring (65), gu fixed ring (65) top inboard is provided with recess ring (66), a plurality of triangle recess (661) have been seted up to the bottom of recess ring (66), crossbearer (4) keep away from the lateral wall of lifter (3) is provided with L shape post (67), L shape post (67) keep away from the tip of crossbearer (4) with the bottom contact of recess ring (66).
2. The differential planetary gear spherical multi-point detection device according to claim 1, wherein a sleeve (68) is vertically arranged at the top of the arc plate (61) and near the edge position, a plunger (69) which is in sliding fit with the sleeve (68) is arranged at the bottom of the disc (62), and a limit sleeve (610) for limiting the position of the plunger (69) is arranged on the outer wall of the plunger (69).
3. The differential planetary gear spherical multi-point detection device according to claim 1 or 2, characterized in that a retarding mechanism (7) is arranged in the middle of the detection table (2);
the speed retarding mechanism (7) is in including running through setting up middle part and with drum post (71) that arc board (61) corresponds, vertical setting are in square pole (72) of the inside diapire of drum post (71), cover are established on square pole (72) and with inside sliding fit's of drum post (71 buffer dish (73), connect second spring (74) between buffer dish (73) and the inside diapire of drum post (71), set up threaded rod (75) at the top of buffer dish (73), and set up between the top inner wall of drum post (71) and be located through-hole frame (76) of buffer dish (73) top, through-hole frame (76) with threaded rod (75) sliding fit, the top of square pole (72) stretch into in threaded rod (75) and with threaded rod (75) sliding fit.
4. A differential planetary gear spherical multi-point detection device according to claim 3, wherein the retarding mechanism (7) further comprises a swivel (77) which is in threaded connection with the outer wall of the threaded rod (75) and is in rotary fit with the bottom of the through hole frame (76), and a plurality of blades (78) which are arranged on the outer wall of the swivel (77) at intervals, and the cylindrical column (71) is provided with ventilation openings corresponding to the positions of the blades (78).
5. The differential planetary gear spherical multi-point detection device according to claim 4, wherein the vent is formed in a top side wall of the cylindrical column (71).
6. A differential planetary gear spherical surface multi-point detection device according to claim 3, characterized in that a positioning and clamping mechanism (8) for clamping a planetary gear is arranged on the base (1);
The positioning and clamping mechanism (8) comprises a U-shaped frame (81) arranged on the base (1) and located below the detection table (2), a bidirectional screw rod (82) rotatably connected between two side walls of the U-shaped frame (81), a motor arranged on one side of the U-shaped frame (81) and used for driving the bidirectional screw rod (82) to rotate, and two clamping plates (83) which are respectively in threaded connection with two ends of the bidirectional screw rod (82) and correspond to the cylindrical column (71), wherein the bottoms of the clamping plates (83) are in sliding fit with the U-shaped frame (81), and through grooves (21) in sliding fit with the clamping plates (83) are formed in two sides of the detection table (2).
7. The differential planetary gear spherical multi-point detection device according to claim 6, wherein the positioning and clamping mechanism (8) further comprises a sliding plate (84) which is slidably arranged on one side of the two clamping plates (83) close to each other, a third spring (85) which is connected between the sliding plate (84) and the corresponding clamping plate (83), L-shaped frames (86) which are respectively arranged on two sides of the top end of the sliding plate (84), and cleaning brush rollers (87) which are rotatably connected between the two L-shaped frames (86), the sliding plate (84) is arranged below the detection table (2), a hinge rod (88) is hinged between the side edge of the sliding plate (84) and the side wall of the cylindrical column (71), and the cleaning brush rollers (87) are in contact with the clamping plates (83).
8. The differential planetary gear spherical multi-point detection device according to claim 7, wherein a telescopic rod (89) is transversely arranged on the side wall of the sliding plate (84) far away from the clamping plate (83), and the telescopic end of the telescopic rod (89) is in sliding fit with the outer wall of the cylindrical column (71).
9. A differential planetary gear spherical surface multi-point position detection method, which is characterized in that the differential planetary gear spherical surface multi-point position detection device according to any one of claims 1 to 8 is adopted to detect a planetary gear, and the method comprises the following steps:
S1, cleaning a detection table (2), placing a standard planetary gear on the detection table (2), starting a lifting piece (3) and driving a transverse frame (4) and a detection mechanism (6) to move downwards until the cambered surface of an arc plate (61) is in contact with the spherical surface of the standard planetary gear, reading and recording indication values of all dial indicators (64), and driving the detection mechanism (6) to reset by the lifting piece (3);
s2, taking down a standard planetary gear, placing the planetary gear to be detected on a detection table (2), starting a lifting piece (3) and driving a detection mechanism (6) to move downwards until the cambered surface of an arc plate (61) is in contact with the spherical surface of the planetary gear to be detected, and reading and recording an indication value of a dial indicator (64);
S3, judging the spherical error of the planetary gear to be detected according to the indication values of the dial indicators (64) in the step S1 and the step S2, and if the error value is within the allowable range, judging the planetary gear to be detected as a qualified product, otherwise, judging the planetary gear to be detected as a unqualified product;
S4, driving the rotary driving piece (5) to rotate, enabling the detection end of the dial indicator (64) to slide along the arc plate (61) and be contained in a sliding hole of the arc plate (61), wherein the detection end of the dial indicator (64) is not in contact with the spherical surface of the planetary gear to be detected;
S5, driving the rotary driving piece (5) to rotate, driving the arc plate (61) and the disc (62) to rotate together by the rotary driving piece (5), driving the dial indicator (64) to rotate, and pushing the detection end of the dial indicator (64) to extend out of the sliding hole of the arc plate (61) by the disc (62) under the elastic force of a first spring (63) corresponding to the disc (62) and contacting with the spherical surface of the planetary gear to be detected, so that multi-point detection is carried out on the spherical surface of the planetary gear.
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| CN112683145A (en) * | 2020-12-15 | 2021-04-20 | 浙江荣达工具有限公司 | Multifunctional saw and saw blade rapid precision detection device and detection method thereof |
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| JPS58165001A (en) * | 1982-03-26 | 1983-09-30 | Hitachi Ltd | Three-dimensional detector |
| JP2739071B2 (en) * | 1990-02-21 | 1998-04-08 | 住友重機械工業株式会社 | Inner mesh planetary gearbox |
| RU2091700C1 (en) * | 1994-09-23 | 1997-09-27 | Анатолий Павлович Архаров | Method of measuring the deviation of key slot from parallelism relative to axis of base surface |
| JP3186963B2 (en) * | 1995-12-27 | 2001-07-11 | 大阪精密機械株式会社 | Gear tooth thickness measurement method |
| JP2009264783A (en) * | 2008-04-22 | 2009-11-12 | Hogi Kenkyusho:Kk | Measuring device |
| CN205228331U (en) * | 2015-12-22 | 2016-05-11 | 江阴全华丰精锻有限公司 | Planetary gear sphere measurement tester |
| CN218316697U (en) * | 2022-11-08 | 2023-01-17 | 重庆艾博瑞威轨道交通设备有限公司 | Articulated bogie |
| CN116481407A (en) * | 2023-05-23 | 2023-07-25 | 无锡市振华汽车部件股份有限公司 | Beam drawing detection mechanism |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106152896A (en) * | 2015-04-07 | 2016-11-23 | 宁夏巨能机器人系统有限公司 | A kind of planetary detection device and detection method thereof |
| CN112683145A (en) * | 2020-12-15 | 2021-04-20 | 浙江荣达工具有限公司 | Multifunctional saw and saw blade rapid precision detection device and detection method thereof |
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