CN112539688A - Detection device and detection method for detecting threads and cracks of hub bearing - Google Patents
Detection device and detection method for detecting threads and cracks of hub bearing Download PDFInfo
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- CN112539688A CN112539688A CN202011238477.5A CN202011238477A CN112539688A CN 112539688 A CN112539688 A CN 112539688A CN 202011238477 A CN202011238477 A CN 202011238477A CN 112539688 A CN112539688 A CN 112539688A
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- 238000001514 detection method Methods 0.000 title claims abstract description 44
- 229910001172 neodymium magnet Inorganic materials 0.000 claims description 51
- 238000004458 analytical method Methods 0.000 claims description 7
- 238000006073 displacement reaction Methods 0.000 claims description 6
- 238000000034 method Methods 0.000 claims description 4
- FGUUSXIOTUKUDN-IBGZPJMESA-N C1(=CC=CC=C1)N1C2=C(NC([C@H](C1)NC=1OC(=NN=1)C1=CC=CC=C1)=O)C=CC=C2 Chemical compound C1(=CC=CC=C1)N1C2=C(NC([C@H](C1)NC=1OC(=NN=1)C1=CC=CC=C1)=O)C=CC=C2 FGUUSXIOTUKUDN-IBGZPJMESA-N 0.000 claims description 3
- 230000000149 penetrating effect Effects 0.000 claims description 3
- GNFTZDOKVXKIBK-UHFFFAOYSA-N 3-(2-methoxyethoxy)benzohydrazide Chemical compound COCCOC1=CC=CC(C(=O)NN)=C1 GNFTZDOKVXKIBK-UHFFFAOYSA-N 0.000 claims 1
- 229910052779 Neodymium Inorganic materials 0.000 claims 1
- QEFYFXOXNSNQGX-UHFFFAOYSA-N neodymium atom Chemical compound [Nd] QEFYFXOXNSNQGX-UHFFFAOYSA-N 0.000 claims 1
- 208000037656 Respiratory Sounds Diseases 0.000 description 6
- 230000005389 magnetism Effects 0.000 description 4
- 230000001360 synchronised effect Effects 0.000 description 3
- 230000007547 defect Effects 0.000 description 2
- 230000003028 elevating effect Effects 0.000 description 2
- 230000005855 radiation Effects 0.000 description 2
- 230000002337 anti-port Effects 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000013508 migration Methods 0.000 description 1
- 230000005012 migration Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 238000001931 thermography Methods 0.000 description 1
- 238000011179 visual inspection Methods 0.000 description 1
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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
- G01B3/00—Measuring instruments characterised by the use of mechanical techniques
- G01B3/46—Plug gauges for internal dimensions with engaging surfaces which are at a fixed distance, although they may be preadjustable
- G01B3/48—Plug gauges for internal dimensions with engaging surfaces which are at a fixed distance, although they may be preadjustable for internal screw-threads
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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
- G01B3/00—Measuring instruments characterised by the use of mechanical techniques
- G01B3/46—Plug gauges for internal dimensions with engaging surfaces which are at a fixed distance, although they may be preadjustable
- G01B3/50—Plug gauges for internal dimensions with engaging surfaces which are at a fixed distance, although they may be preadjustable of limit-gauge type, i.e. "go/no-go"
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N25/00—Investigating or analyzing materials by the use of thermal means
- G01N25/72—Investigating presence of flaws
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Abstract
本发明涉及轮毂轴承的检测设备，公开用于检测轮毂轴承螺纹、裂纹的检测装置及其检测方法，包括工作台和第一支架，第一支架顶部设有支撑板，支撑板上安装有电机，电机的输出轴上安装有通规组件，工作台安装有底座，通规组件包括通规架、轴孔通规和螺纹通规，通规架上固定有固定块和第一伸缩装置，固定块的侧壁设有第一限位孔，轴孔通规径向方向上设有第二限位孔，第一伸缩装置上的第一伸缩杆通过第一限位孔伸入到第二限位孔内时，支撑盘与轴孔通规同步转动。本检测装置不仅能够检测轮毂轴承的螺纹，还能够检测轮毂轴承的轴孔，螺纹通规不仅能够自转，也能够随着通规架做圆周转动，从而使得螺纹通规能够自动寻找轮毂轴承螺纹孔。
The invention relates to detection equipment for wheel hub bearings, and discloses a detection device for detecting threads and cracks of wheel hub bearings and a detection method thereof. The output shaft of the motor is installed with a pass gauge assembly, and the worktable is installed with a base. The pass gauge assembly includes a pass gauge frame, a shaft hole pass gauge and a thread pass gauge. The pass gauge frame is fixed with a fixed block and a first telescopic device. The fixed block A first limit hole is provided on the side wall of the shaft hole, a second limit hole is arranged in the radial direction of the shaft hole through the gauge, and the first telescopic rod on the first telescopic device extends into the second limit hole through the first limit hole When inside the hole, the support plate rotates synchronously with the shaft hole through gauge. The detection device can not only detect the thread of the wheel hub bearing, but also the shaft hole of the wheel hub bearing. The threaded through gauge can not only rotate on its own, but also rotate in a circle with the through gauge frame, so that the threaded through gauge can automatically find the threaded hole of the hub bearing. .
Description
Technical Field
The invention relates to a detection device of a hub bearing, in particular to a detection device and a detection method for detecting threads and cracks of the hub bearing.
Background
The hub bearing unit is an important part in an automobile system, and the main function of the hub bearing unit is to bear weight and provide accurate guidance for the rotation of a hub, so that the hub bearing unit is required to bear not only axial load but also radial load, and is widely applied to other mechanical equipment.
When the outer ring of the hub bearing unit is cracked or has insufficient diameter, the service life and the use safety of the bearing are seriously influenced. Meanwhile, the thread pitch, the diameter and the like of the bearing thread also require the size specification, otherwise, the problems of unbalance and the like during installation can also influence the service life and the running quality of the bearing. In the prior art, the diameter, the raceway, the thread and the crack of the outer ring are generally detected by a simple tool or visual inspection, the data is not accurate enough, the labor intensity is high, and the monitoring efficiency is low.
The screw thread leads to rule because the screw thread can not do the circumferencial rotation to make the wheel hub bearing mounted position of its below must be very accurate, this also makes people need fix a position the orientation when placing the wheel hub bearing and places, and in case the wheel hub bearing is misplaced, the screw on the wheel hub bearing just can't be detected to the screw thread leads to rule. For example, the hub bearing end jump detecting and thread detecting integrated machine of application No. 201720620453.3 can detect the screw hole on the hub bearing, but cannot detect the crack and the shaft hole of the hub bearing. The function is single.
Disclosure of Invention
Aiming at the defects in the prior art, the invention provides a detection device and a detection method for detecting threads and cracks of a hub bearing.
In order to solve the technical problem, the invention is solved by the following technical scheme:
the detection device for detecting the threads and cracks of the hub bearing comprises a workbench, a controller and a first support, wherein a support plate horizontally extending towards the direction of the workbench is arranged at the top of the first support, a motor is mounted on the support plate, the controller is connected with the motor and controls the start and stop of the motor, a go gauge assembly is mounted on an output shaft of the motor, a base for placing the hub bearing is mounted on the workbench, and the go gauge assembly is arranged right above the base; the go gauge assembly comprises a go gauge frame, a shaft hole go gauge and a plurality of screw thread go gauges, guide rails are arranged on two sides of the front side wall of the first support, track grooves are formed in the guide rails, the go gauge frame comprises a turntable and a supporting plate, the supporting plate is fixed on the turntable, the outer diameter of the turntable is larger than that of the supporting plate, edges of two sides of the turntable are arranged in the track grooves of corresponding ends, the turntable covers the supporting plate to form a cavity, the upper end portions of the shaft hole go gauge and the screw thread go gauge penetrate through the cavity and are arranged on the go gauge frame, the lower end portions of the shaft hole go gauge and the screw thread go gauge penetrate through the turntable and vertically extend downwards, the screw thread go gauge is arranged around the shaft hole go gauge, a driving gear arranged in the cavity is fixed at the upper end portion of the shaft hole go gauge, driven gears arranged in the cavity are fixed at the upper end portions of all the screw thread go gauges, be equipped with the first through-hole that supplies the shaft hole to lead to the rule to pass through on the fixed block, the lateral wall of fixed block is equipped with the first spacing hole that communicates with first through-hole, and the shaft hole leads to and is equipped with the spacing hole of second in the radial direction of rule, and first telescoping device includes first cylinder and first telescopic link, and first telescopic link is flexible in first cylinder, and when first telescopic link stretched into the spacing downthehole of second through first spacing hole, the supporting disk led to the rule synchronous rotation with the shaft hole.
This detection device not only can detect the screw thread of wheel hub bearing, can also detect the shaft hole of wheel hub bearing, and when the wheel hub bearing was placed on the base of workstation, need not the manual work and rotates the assigned position with the screw on the wheel hub bearing. Under the cooperation of the second limiting hole on the first telescopic device, the fixing block and the shaft hole, the thread go gauge not only can rotate, but also can rotate along with the passing gauge frame in a circumferential manner, so that the thread go gauge can automatically find a hub bearing threaded hole.
Preferably, the front side wall of the first support is provided with a guide rail groove, the two guide rails are slidably mounted in the guide rail groove, the left side and the right side of the first support are respectively provided with a second telescopic device used for driving the guide rails to move horizontally, each second telescopic device comprises a second cylinder and a second telescopic rod, each second telescopic rod is fixedly connected with the corresponding guide rail, each rail groove comprises a straight line section and an arc-shaped section, the straight line sections are arranged at the front end parts of the guide rails, the arc-shaped sections are arranged at the rear end parts of the guide rails and are connected with the arc-shaped sections, and the arc-shaped shapes of the arc-.
Two guide rails are used for placing the rule frame that leads to, lead to the rule frame and can remove under the drive of second telescoping device to make the guide rail of this device can place the rule frame that leads to of different models, this device can detect the wheel hub bearing of different models size, and detection device's commonality is stronger. The straightway in guide rail groove is the guide way, and it makes things convenient for people to install logical rule frame, and the segmental arc is the spacing groove, and it can fix a position logical rule frame, prevents to lead to the rule frame back-and-forth movement, guarantees the stability when check out test set detects.
Preferably, a distance sensor is installed at the center of the lower end face of the thread go gauge and used for detecting the vertical distance between the lower end face of the thread go gauge and the end face of the hub bearing, the distance sensor is connected with the controller and sends detected distance information to the controller for analysis, and the controller controls the motor to rotate forwards and backwards according to the analyzed distance information.
The screw that the needs of wheel hub bearing detected can be found out automatically to distance sensor on the screw leads to the rule, need not artifical manual in advance to it, has improved the screw leads to the rule and has led to the accurate nature of wheel hub bearing screw hole alignment, has also improved detection device's detection efficiency simultaneously.
Preferably, the wheel hub bearing further comprises a first neodymium magnet with a T-shaped cross section, a groove for placing the wheel hub bearing is formed in the middle of the base, a mounting hole penetrating through the bottom surface of the groove is formed in the bottom of the groove, the lower end portion of the first neodymium magnet is mounted in the mounting hole, the lower end face of the first neodymium magnet is flush with the lower end face of the base, the upper end portion of the first neodymium magnet is mounted in the groove, and the cushion is mounted on the upper end face of the first neodymium magnet.
Preferably, still including establishing the second support in the workstation below, be equipped with the second through-hole on the workstation, the base is placed on the second through-hole, second through-hole and mounting hole intercommunication, install the jacking device on the second support, the jacking device includes pneumatic cylinder and ejector pin, the ejector pin is flexible in the pneumatic cylinder, the top of ejector pin is fixed with second neodymium magnet, the magnetism of second neodymium magnet is the same with the magnetism of first neodymium magnet, during the jacking, second neodymium magnet promotes first neodymium magnet through the second through-hole.
When the thread go gauge is used for detecting the thread of the hub bearing, when the thread go gauge is matched with the hub bearing, the thread go gauge drives the hub bearing to lift, the second neodymium magnet can provide thrust for the first neodymium magnet when lifting, the first neodymium magnet can push the hub bearing to lift, and the hub bearing is lifted softly; when the thread go gauge cannot be matched with the hub bearing, the thread go gauge can push against the hub bearing to continuously rise. This kind of lift mode can avoid when screw thread lead to rule and wheel hub bearing can not cooperate, and elevating gear still continues jacking wheel hub bearing and damages the screw thread lead to rule.
Preferably, the two sides of the upper end face of the second support are provided with adjusting rods, each adjusting rod comprises a screw tube and a screw rod, one end of each screw tube is fixed on the second support, a fixing plate is fixed between the lower end portions of the two screw rods, the hydraulic cylinder is fixed on the fixing plate, the upper end portions of the screw rods are in threaded connection with the screw tubes, the top ends of the screw rods penetrate out of the upper end face of the second support, and hexagonal screw heads are fixed at the top ends of the screw rods.
The adjusting rod is used for adjusting the levelness of the fixing plate, so that the levelness of the hydraulic cylinder is adjusted, the second neodymium magnet on the ejector rod can be lifted horizontally, and the hub bearing can be lifted horizontally and stably.
Preferably, the front side wall of the first support is further fixed with a crack detector for detecting cracks on the end face of the hub bearing, the crack detector comprises a support, a lifting device and an infrared detector, the support is fixed on the first support, the lifting device is fixed on the upper end face of the support, the infrared detector is hinged to the lower end portion of the support, the lifting device comprises a third cylinder and a third telescopic rod, one end of the third telescopic rod stretches into and retracts from the third cylinder, the other end of the third telescopic rod is connected with the shell of the infrared detector through the support, and the infrared detector is provided with an infrared sensor facing the hub bearing.
This detection device can also detect wheel hub bearing crackle, and when detecting wheel hub bearing crackle, the state of wheel hub bearing is rotatory lift to make infrared detector can carry out omnidirectional detection to the wheel hub bearing.
A detection method adopting a detection device comprises the following steps:
step a, placing a hub bearing, and placing the hub bearing in a groove of a base;
b, locking the through gauge frame, starting the first telescopic device, enabling the first telescopic rod to pass through the first limiting hole of the fixing block and extend into the first through hole, so that the shaft hole through gauge and the through gauge frame are connected together, and the supporting disc and the shaft hole through gauge synchronously rotate;
c, positioning the thread go gauge, starting a motor, driving a go gauge support to rotate by the motor, driving the thread go gauge to rotate circumferentially by the go gauge support, detecting a secondary displacement fluctuation signal by a distance sensor, determining the position of a bearing threaded hole of the hub, driving the motor to rotate reversely by a controller, stopping the thread go gauge at the middle position of the secondary displacement fluctuation, and turning off the motor;
d, unlocking the through gauge frame, resetting the first telescopic rod, and separating the first telescopic rod from the first through hole;
step e, detecting the threads of the hub bearing, namely starting a motor, driving a shaft hole go gauge to rotate by the motor, meshing a driving gear on the shaft hole go gauge with a driven gear on the thread go gauge, and rotating the thread go gauge; then starting the jacking device, driving the second neodymium magnet to be close to the first neodymium magnet by the ejector rod, and driving the hub bearing to ascend by the first neodymium magnet; when the threads of the hub bearing meet the standard, all the thread go-gauges are in threaded connection with the screw holes on the hub bearing at the same time and drive the hub bearing to ascend; when the thread of the hub bearing does not meet the standard, the thread go gauge cannot be matched with the screw hole of the hub bearing, and the motor and the jacking device are closed;
step f, detecting cracks of the hub bearing, starting the step b when the threads of the hub bearing meet the standard, and simultaneously driving the hub bearing to ascend and rotate by the thread go-no-go gauge; simultaneously starting a crack detector, scanning the hub bearing by the infrared sensor and sending information to the controller for analysis, starting the lifting device in the scanning process, and carrying out up-and-down swinging scanning on the hub bearing by the infrared sensor; after the go gauge frame rotates for a circle, the controller controls the motor to rotate reversely, resets the hub bearing to the position before rotation, and closes the crack detector and the motor;
and g, resetting the hub bearing, starting the step d, starting the motor to enable the thread go gauge to be separated from the screw hole of the hub bearing, and resetting the jacking device.
Due to the adoption of the technical scheme, the invention has the remarkable technical effects that:
this detection device not only can detect the screw thread of wheel hub bearing, can also detect the shaft hole of wheel hub bearing, and when the wheel hub bearing was placed on the base of workstation, need not the manual work and rotates the assigned position with the screw on the wheel hub bearing. Under the cooperation of the second limiting hole on the first telescopic device, the fixing block and the shaft hole, the thread go gauge not only can rotate, but also can rotate along with the passing gauge frame in a circumferential manner, so that the thread go gauge can automatically find a hub bearing threaded hole.
Drawings
FIG. 1 is a schematic structural diagram of the present invention in a first position.
Fig. 2 is a schematic structural view in a second position state of the present invention.
Fig. 3 is a partially enlarged view of a in fig. 1.
Fig. 4 is a schematic structural view of the fixing block of fig. 1.
Fig. 5 is a schematic cross-sectional view of the base and its upper part in fig. 1.
Fig. 6 is a partially enlarged view of B in fig. 2.
The names of the parts indicated by the numerical references in the above figures are as follows: 10-workbench, 11-first bracket, 12-motor, 13-go gauge assembly, 14-base, 15-guide rail, 16-second cylinder, 17-first neodymium magnet, 18-cushion, 19-second bracket, 20-jacking device, 21-adjusting rod, 22-fixing plate, 23-crack detector, 101-second through hole, 111-supporting plate, 112-guide rail groove, 131-go gauge bracket, 132-shaft hole go gauge, 133-thread go gauge, 134-driving gear, 135-driven gear, 136-fixing block, 137-first telescoping device, 138-distance sensor, 141-groove, 142-mounting hole, 151-track groove, 201-hydraulic cylinder, 202-ejector rod, 203-second neodymium magnet, 211-solenoid, 212-screw, 231-support, 232-infrared detector, 233-third cylinder, 131-cavity 1310, 1-turntable, 1312-supporting plate, 1361-first through hole, 136first through hole, 1362-first spacing hole, 1371-first cylinder, 1372-first telescopic link, 2121-hexagonal spiral head, 2321-infrared sensor.
Detailed Description
The invention will be described in further detail below with reference to the accompanying figures 1-6 and examples.
Example 1
A detection device for detecting wheel hub bearing screw thread, crackle, including workstation 10, controller and first support 11, 11 tops of first support are equipped with the backup pad 111 that the level extends to workstation 10 direction, install motor 12 in the backup pad 111, and motor 12 is servo motor, still installs the reduction gear in motor 12's the motor casing to make this motor 12 formula motor as speed reduction integral type. The controller is connected with motor 12 and controls its start-stop, installs general rule subassembly 13 on the output shaft of motor 12, and motor 12 can drive general rule subassembly 13 and rotate. The workbench 10 is provided with a base 14 for placing a hub bearing, and the go gauge assembly 13 is arranged right above the base 14. The go gauge assembly 13 comprises a go gauge frame 131, a shaft hole go gauge 132 and a plurality of thread go gauges 133, and the top end of the shaft hole go gauge 132 is fixedly connected with the output shaft of the motor 12 through a coupler. The number of the thread go-gauge 133 in this embodiment is 4. The guide rails 15 are mounted on two sides of the front side wall of the first support 11, rail grooves 151 are formed in the guide rails 15, and openings of the rail grooves 151 in the two guide rails 15 are opposite. The gauge 131 comprises a turntable 1311 and a support plate 1312, the support plate 1312 is fixed on the turntable 1311 through bolts, the turntable 1311 and the support plate 1312 are coaxially arranged, the outer diameter of the turntable 1311 is larger than that of the support plate 1312, and two side edges of the turntable 1311 are installed in the track grooves 151 at corresponding ends. The rotating disc 1311 covers the supporting disc 1312 to form a cavity 1310, the upper ends of the shaft hole go gauge 132 and the screw go gauge 133 penetrate through the cavity 1310 and are mounted on the go gauge frame 131, the lower ends of the shaft hole go gauge 132 and the screw go gauge 133 penetrate through the rotating disc 1311 and vertically extend downwards, and the screw go gauge 133 is arranged on the periphery of the shaft hole go gauge 132. The upper end of the shaft hole go gauge 132 is fixed with a driving gear 134 accommodated in the cavity 1310, the upper ends of all the thread go gauges 133 are fixed with a driven gear 135 accommodated in the cavity 1310, and the driven gear 135 is meshed with the driving gear 134, so that the shaft hole go gauge 132 and the thread go gauge 133 can synchronously rotate. Supporting disk 1312 top end face is fixed with fixed block 136 and first telescoping device 137, be equipped with the first through-hole 1361 that supplies the shaft hole to lead to rule 132 to pass through on the fixed block 136, the lateral wall of fixed block 136 is equipped with the first spacing hole 1362 that communicates with first through-hole 1361, the shaft hole leads to and is equipped with the spacing hole of second on the rule 132 upper end radial direction, first telescoping device 137 includes first cylinder 1371 and first telescopic link 1372, first telescopic link 1372 is flexible in first cylinder 1371, when first telescopic link 1372 stretches into the spacing downthehole of second through first spacing hole 1362, supporting disk 1312 leads to rule 132 synchronous revolution with the shaft hole. When the first telescopic rod 1372 of the first telescopic device 137 does not extend into the second limiting hole, the shaft hole go gauge 132 drives the thread go gauge 133 to rotate, so that the thread of the hub bearing is detected; when the first telescopic link 1372 of first telescoping device 137 stretched into the spacing downthehole of second, led to rule frame 131 and the synchronous rotation of shaft hole expert rule 132, led to rule frame 131 and drive screw expert rule 133 and do circular motion to make screw expert rule 133 can align the screw of its below wheel hub bearing automatically, the cost of using manpower sparingly improves detection efficiency.
The preceding lateral wall of first support 11 is equipped with guide rail groove 112, and two guide rails 15 are all slidable mounting in guide rail groove 112, and the second telescoping device that is used for driving guide rail 15 horizontal migration is all installed to the first support 11 left and right sides, and the second telescoping device includes second cylinder 16 and second telescopic link, and the second telescopic link stretches into in the guide rail groove 112 and with guide rail 15 fixed connection, and when the second telescopic link is flexible, guide rail 15 can move on guide rail groove 112. Track groove 151 includes straightway and segmental arc, the straightway is established at the preceding tip of guide rail 15, the back tip at guide rail 15 is established to the segmental arc, the straightway is connected with the segmental arc, the segmental arc shape is the same with carousel 1311's periphery shape, the guide rail groove 112 of straightway is the guide way, conveniently lead to the rule frame 131 and install on guide rail 15, the guide rail groove 112 of segmental arc is the constant head tank, conveniently will lead to rule frame 131 and fix a position on guide rail 15, when motor 12 drives and leads to rule frame 131 and rotate, lead to rule frame 131 pivoted stability good.
The distance sensor 138 is installed at the center of the lower end face of the thread go gauge 133, the distance sensor 138 is of an infrared type and is GP2Y0A21YK0F in the model number, the distance sensor 138 is used for detecting the vertical distance between the lower end face of the thread go gauge 133 and the end face of the hub bearing, the distance sensor 138 is connected with the controller and sends the detected distance information to the controller for analysis, and the controller controls the motor 12 to rotate forwards and backwards through the analyzed distance information. When distance sensor 138 detects two times distance signal fluctuation, just can confirm the screw position of wheel hub bearing this moment, and the controller will control the motor 12 reversal, and motor 12 drives leads to rule frame 131 antiport to make screw lead to rule 133 location at two times distance signal undulant central point, screw lead to rule 133 accurate location directly over the screw of wheel hub bearing.
The detection device further comprises a first neodymium magnet 17 with a T-shaped cross section, a groove 141 for placing a hub bearing is formed in the middle of the base 14, the groove 141 is a circular groove, a mounting hole 142 penetrating through the bottom surface of the groove 141 is formed in the bottom of the groove 141, the lower end portion of the first neodymium magnet 17 is mounted in the mounting hole 142, the lower end face of the first neodymium magnet 17 is flush with the lower end face of the base 14, the upper end portion of the first neodymium magnet 17 is mounted in the groove 141, a cushion 18 is mounted on the upper end face of the first neodymium magnet 17, the cushion 18 prevents the hub bearing from being in rigid contact with the first neodymium magnet 17, and meanwhile the cushion 18 plays a certain buffering role and protects the first neodymium magnet 17.
This detection device still includes the second support 19 of establishing in workstation 10 below, be equipped with second through-hole 101 on workstation 10, base 14 is placed on second through-hole 101, second through-hole 101 communicates with mounting hole 142, install jacking device 20 on the second support 19, jacking device 20 includes pneumatic cylinder 201 and ejector pin 202, ejector pin 202 stretches out and draws back in pneumatic cylinder 201, the top of ejector pin 202 is fixed with second neodymium magnet 203, the magnetism of second neodymium magnet 203 is the same with the magnetism of first neodymium magnet 17, when jacking, second neodymium magnet 203 promotes first neodymium magnet 17 through second through-hole 101. When the thread go gauge 133 detects the thread of the hub bearing, when the thread go gauge 133 is matched with the hub bearing, the thread go gauge 133 can drive the hub bearing to lift, at the moment, the second neodymium magnet 203 can provide a thrust force for the first neodymium magnet 17 when lifting, the first neodymium magnet 17 can push the hub bearing to lift, but the lifting of the hub bearing is soft lifting, and the soft lifting is that the hub bearing cannot be jacked up by the first neodymium magnet 17; when the thread gauge 133 is not engaged with the hub bearing, the thread gauge 133 will continue to rise against the hub bearing. This kind of lift mode can avoid screw thread lead gauge 133 and wheel hub bearing to be unable when joining in marriage, and elevating gear 20 still continues the jacking wheel hub bearing and damages the screw thread lead gauge.
The preceding lateral wall of first support 11 still is fixed with the crack detection ware 23 that is used for detecting wheel hub bearing end face crackle, crack detection ware 23 includes support 231, hoisting device and infrared detector 232, support 231 is fixed on first support 11, hoisting device fixes the up end at support 231, infrared detector 232 is articulated with the lower tip of support 231, hoisting device includes third cylinder 233 and third telescopic link, third telescopic link one end is flexible in third cylinder 233, its other end passes through support 231 and is connected with infrared detector 232's shell, install infrared sensor 2321 towards the wheel hub bearing on the infrared detector 232. This detection device can also detect the wheel hub bearing crackle, and when detecting the wheel hub bearing crackle, the state of wheel hub bearing is rotatory lift to make infrared detector 232 can carry out the omnidirectional to the wheel hub bearing and detect. The infrared detector 232 measures the internal energy flow condition of the object by an infrared radiation analysis method according to the basic principle of infrared radiation, and uses an infrared thermal imager to display the detection result so as to visually judge the defect. The method is based on the heat conduction theory and the infrared thermal imaging theory. When the temperature of the object differs from the ambient temperature, a flow of heat is generated inside the object. If heat is injected into the object, a part of the heat flow is necessarily diffused inward, so that the temperature distribution of the surface of the object is changed.
Example 2
The embodiment 2 has substantially the same characteristics as the embodiment 1, except that the adjusting rods 21 are mounted on both sides of the upper end surface of the second bracket 19, each adjusting rod 21 comprises a screw tube 211 and a screw rod 212, one end of the screw tube 211 is fixed on the second bracket 19, a fixing plate 22 is fixed between the lower ends of the two screw rods 212, the hydraulic cylinder 201 is fixed on the fixing plate 22, the upper end of the screw rod 212 is in threaded connection with the screw tube 211, the top end of the screw rod 212 penetrates through the upper end surface of the second bracket 19, and a hexagonal screw head 2121 is fixed at the top end of the screw rod 212. The adjusting rod 21 is used for adjusting the levelness of the fixing plate 22, so that the levelness of the hydraulic cylinder 201 is adjusted, the horizontal stability of the lifting of the first neodymium magnet 17 is ensured, and the horizontal stability of the lifting of the hub bearing is improved.
Example 3
A detection method using the detection apparatus in embodiment 1 or 2, comprising the steps of:
step a, placing a hub bearing, and placing the hub bearing in a groove 141 of a base 14;
step b, locking the through gauge frame 131, starting the first telescopic device 137, enabling the first telescopic rod 1372 to pass through the first limiting hole 1362 of the fixing block 136 and extend into the first through hole 1361, so as to connect the shaft hole through gauge 132 with the through gauge frame 131, and enabling the supporting plate 1312 and the shaft hole through gauge 132 to synchronously rotate;
step c, positioning the thread go gauge, starting the motor 12, driving the through gauge bracket 131 to rotate by the motor 12, driving the thread go gauge 133 to rotate circumferentially by the through gauge bracket 131, detecting a twice displacement fluctuation signal by the distance sensor 138, determining the position of a hub bearing threaded hole, driving the motor 12 to rotate reversely by the controller, enabling the thread go gauge 133 to stay at the middle position of twice displacement fluctuation, and closing the motor 12;
d, unlocking the universal gauge frame 131, resetting the first telescopic rod, and separating the first telescopic rod 1372 from the first through hole 1361;
step e, detecting the hub bearing thread, namely starting the motor 12, driving the shaft hole go gauge 132 to rotate by the motor 12, meshing a driving gear 134 on the shaft hole go gauge 132 with a driven gear 135 on the thread go gauge 133, and rotating the thread go gauge 133; starting the jacking device 20 again, driving the second neodymium magnet 203 to be close to the first neodymium magnet 17 by the ejector rod 202, and driving the hub bearing to ascend by the first neodymium magnet 17; when the hub bearing threads meet the standard, all the thread go-gauges 133 are in threaded connection with the screw holes on the hub bearing at the same time and drive the hub bearing to ascend; when the hub bearing thread does not meet the standard, the thread go gauge 133 cannot be matched with the screw hole of the hub bearing, and the motor 12 and the jacking device 20 are closed;
step f, detecting the cracks of the hub bearing, starting the step b when the threads of the hub bearing meet the standard, and simultaneously driving the hub bearing to ascend and rotate by the thread go-gauge 133; meanwhile, the crack detector 23 is started, the infrared sensor 2321 scans the hub bearing and sends information to the controller for analysis, and in the scanning process, the lifting device is started, and the infrared sensor 2321 scans the hub bearing in an up-and-down swinging mode; after the gauge 131 rotates for one circle, the controller controls the motor 12 to rotate reversely, resets the hub bearing to the position before rotation, and turns off the crack detector 23 and the motor 12;
and g, resetting the hub bearing, starting the step d, starting the motor 12 again to enable the thread go gauge 133 to be separated from the screw hole of the hub bearing, and simultaneously resetting the jacking device 20.
Claims (8)
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| CN114654274A (en) * | 2022-03-31 | 2022-06-24 | 扬州戴卡轮毂制造有限公司 | Hub valve hole processing equipment |
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| CN112539688B (en) | 2022-04-22 |
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