CN209445993U - Axle housing detection platform - Google Patents

Abstract

The utility model relates to an axle housing detection platform, which belongs to the field of automatic detection. Including the X, Y, Z direction displacement adjustment device of the mechanical measurement arm, the vertical fixed connection between the mechanical measurement arm and the slider on the Z direction displacement adjustment device, the connection between the visual scanner and the ultrasonic laser measuring instrument and the front end of the mechanical measurement arm, the middle part of the mechanical measurement arm Install the turntable, the positioning mandrel is fixedly installed in the center of the lifting platform, the pneumatic push rod is installed at the four corners of the lifting platform, the pneumatic lifting column is fixed on the supporting platform, and the two ends of the supporting platform are connected to the rotary chuck that can move in the Y direction, and the cover plate and The support platform is slidingly connected. The advantage lies in the use of non-contact measurement methods to avoid contamination and damage to the surface of the axle housing by measuring coupling agents and measuring tools; two sets of positioning and clamping devices are used for axle housing testing to avoid the influence of positioning and clamping devices on the testing results of the axle housing ; Realize the thickness measurement of arc surface, hollow cylinder, hollow cone and plane.

Description

An axle housing testing platform

technical field

The utility model relates to the field of automatic detection, in particular to an axle housing detection platform.

Background technique

The comprehensive, accurate and rapid detection of the axle housing is helpful for the optimization of the axle housing processing technology, the optimization of the axle housing structure design, and the research of the axle housing service life. At this stage, manual detection is used for the detection of the outer dimensions of the axle housing, mainly using measuring instruments or molds to detect the outer dimensions and partial section thickness of the axle housing, and it is impossible to accurately and quickly detect the section thickness of each part of the axle housing. The cumbersome manual inspection process, low efficiency and single inspection method have become problems plaguing the axle industry.

Contents of the invention

The utility model provides an axle housing detection platform to solve the existing problems of low efficiency and great difficulty in vehicle axle measurement.

The technical solution adopted by the utility model is: the visual scanner and the ultrasonic laser measuring instrument are connected with the front end of the mechanical measuring arm, the X-direction displacement adjustment device of the mechanical measurement arm is fixedly connected on the support platform, and the Y-direction displacement adjustment device is vertically fixed on the X-direction displacement On the adjustment device, the Z-direction displacement adjustment device is fixedly connected to the Y-direction displacement adjustment device, and the mechanical measuring arm is vertically fixedly connected to the slider on the Z-direction displacement adjustment device, and is always kept parallel to the support platform. A turntable is installed in the middle of the mechanical measuring arm. The positioning mandrel is fixedly installed in the center of the lifting platform, the pneumatic push rod is installed at the four corners of the lifting platform, the pneumatic lifting column is fixedly installed on the supporting platform, and the two ends of the supporting platform are connected to the movable rotary chuck in the Y direction, the pneumatic lifting column, the rotating card The central planes of the disk and the lifting platform are located on the same plane, and the cover plate is slidably connected with the support platform and is located above the lifting platform.

The structure of the lifting platform is: the motor is located above the support plate, two worm gear boxes are located on both sides of the motor, the two output ends of the motor are connected with the worm wheels in the two worm gear boxes, and the worms in the two worm gear boxes are connected to The platform is connected, and there are four guide columns under the four corners of the support plate. The lifting of the platform is realized by the motor driving the worm gear mechanism in the worm gear box to ensure the smooth operation of the lifting platform.

The utility model has the advantages of novel structure, adopts non-contact measurement method, avoids coupling agent, measuring tools, etc. to pollute and damage the surface of the axle housing; The impact on the test results of the axle housing; the thickness measurement of the arc surface, hollow cylinder, hollow cone and plane is realized.

Description of drawings

Fig. 1 is the structural representation of the utility model;

Fig. 2 is a division diagram of the detection area of the axle housing shape of the utility model;

Fig. 3 is a division diagram of the section thickness detection area of the axle housing of the utility model;

Figure 4 is a schematic diagram of the shape detection, positioning and clamping of the outer circumference of the pipa hole of the bridge housing and the side of the straight arm of the utility model;

Fig. 5 is a schematic diagram of the first positioning and clamping in the shape detection of the axle housing of the utility model;

Fig. 6 is a schematic diagram of the second positioning and clamping in the shape detection of the axle housing of the utility model;

Fig. 7 is a schematic diagram of the positioning and clamping of the thickness measurement of the detection point on the arc surface of the axle housing of the utility model;

Figure 8 is a schematic diagram of clamping for thickness measurement of the fourth area of the left end round tube and the fourth area of the right end round tube of the utility model axle housing;

Fig. 9 is a schematic diagram of clamping for thickness measurement of the third area of the left end round tube and the third area of the right end round tube of the axle housing of the utility model.

Detailed ways

As shown in Figure 1, the visual scanner 6 and the ultrasonic laser measuring instrument 7 are connected to the front end of the mechanical measuring arm 11, the X-direction displacement adjustment device 3 of the mechanical measurement arm is fixedly connected to the supporting platform 2, and the Y-direction displacement adjustment device 12 is vertically fixed on the On the X-direction displacement adjustment device 3, the Z-direction displacement adjustment device 10 is fixedly connected to the Y-direction displacement adjustment device 12, and the mechanical measuring arm 11 is vertically fixedly connected to the slider 9 on the Z-direction displacement adjustment device 10, and is always connected to the support platform 2 Keeping parallel, the turntable 8 is installed in the middle of the mechanical measuring arm 11, the positioning mandrel 5 is fixedly installed in the center of the lifting platform 14, the pneumatic push rod 15 is installed in the four corners of the lifting platform 14, and the pneumatic lifting column 13 is fixedly installed on the supporting platform 2, and the supporting platform 2 The two ends are connected to the rotary chuck 1 that can be moved in the Y direction. The central planes of the pneumatic lifting column 13, the rotary chuck 1, and the lifting table 14 are located on the same plane. 14 above.

The structure of the lifting platform 14 is: the motor 1402 is located above the support plate 1405, and the two worm gear boxes 1403 are located on both sides of the motor 1402, and the two output ends of the motor 1402 are connected with the worm gears in the two worm gear boxes 1403. The worm in the worm gear box 1403 is connected to the platform 1401, and there are four guide columns 1404 under the four corners of the support plate 1405. The lifting of the platform 1401 is realized by the worm gear mechanism in the worm gear box 1403 driven by the motor 1402, so as to ensure the smooth operation of the lifting platform.

As shown in Figure 2; the detected axle housing is divided into eight detection areas when performing shape detection;

As shown in Figure 3; the tested axle housing is divided into eight detection areas when performing section thickness measurement;

As shown in Figure 5, the positioning and clamping device composed of the rotary chuck 1 and the pneumatic lifting column 13 ensures that when detecting a certain area, the area is not blocked by the clamp body or positioning components, avoiding post-processing, and making the detection results more reliable .

As shown in Figure 6, the lifting platform 14 is lowered, and the cover plate 16 is closed so that it cannot interfere with the detection of the axle housing; the rotary chuck 1 does not appear in the detection area, and the maximum size of the pneumatic lifting column 13 does not exceed the maximum size of the supporting part. To avoid errors in the detection results caused by the detection of the pneumatic lifting column 13 .

As shown in Figure 7, a turntable 8 is installed on the mechanical measuring arm 11. When measuring the thickness of the fillet, the incident direction of the laser is guaranteed to be perpendicular to the tangent plane of the fillet. Four-area thickness measurement, this area is a hollow conical surface, to ensure that the incident direction of the laser is perpendicular to the generatrix of the cone.

A testing method for an axle housing, including profile testing and section thickness testing:

(1) Shape detection, including the following steps:

(1) The cover plate 16 is opened, the motor 1402 drives the mechanism in the worm gear box 1403 to complete the lifting action of the lifting platform 14, the pipa hole of the axle housing 4 passes through the positioning mandrel 5, the axle housing 4 is placed on the lifting platform 14 stably, and the pneumatic The push rod 15 moves to completely position the axle housing 4, and the clamps at both ends of the push rod clamp the axle housing 4, as shown in Figure 5, after the first positioning and clamping of the axle housing 4 is completed, the three displacement adjustment devices drive the measuring device to The first area 401 of the round tube at the left end and the first area 402 of the round tube at the right end perform shape detection;

(2) The pneumatic lifting column 13 rises, the clamping devices at both ends of the pneumatic push rod 15 are released, the rotary chucks 1 at both ends of the support platform move to the designated position and clamp the two ends of the axle housing 4, and the axle housing 4 is positioned for the second time Clamping; the pneumatic push rod 15 is recovered, the lifting table 14 is lowered, and the cover plate 16 is closed. As shown in Figure 6, after the second positioning and clamping of the axle housing 4 is completed, the front plane of the pipa hole and the front plane 405 of the axle housing arm are completely exposed , to perform shape detection of the front plane of the pipa hole and the front plane 405 of the axle housing arm;

(3) The pneumatic lifting column 13 is lowered, the rotary chuck 1 is rotated 90 degrees clockwise, the pipa hole surface of the axle housing 4 is perpendicular to the platform support surface, the pneumatic lifting column 13 is raised, an outer circumferential surface of the pipa hole and a side of the straight arm 406 Completely exposed, complete the shape detection of the outer circumference of the pipa hole and the side 406 of the straight arm, as shown in Figure 4;

(4) The pneumatic lifting column 13 is lowered, the rotary chuck 1 is rotated 90 degrees clockwise again, the pneumatic lifting column 13 is raised, and the rear plane of the pipa hole and the rear plane of the straight arm 407 are completely exposed, and the rear plane of the pipa hole and the rear plane of the straight arm are completed 407 shape detection;

(5) The cover plate 16 is opened, the lifting platform 14 is raised, the pipa hole of the axle housing passes through the positioning mandrel 5, the axle housing 4 is placed on the lifting platform 14 stably, the pneumatic push rod 15 moves to completely position the axle housing 4, and push The clamps at both ends of the rod clamp the axle housing 4. After the third positioning and clamping is completed, the second area 403 of the left circular tube and the second area 404 of the right circular tube are completely exposed, and the second area 403 of the left circular tube and the second area 404 of the right circular tube are completed. Carry out shape inspection;

(6) The pneumatic lifting column 13 rises, the rotary chuck 1 at both ends of the support platform 2 moves to the designated position and clamps the two ends of the axle housing 4, the lifting platform 14 descends, the cover plate 16 closes, and the fourth positioning clamp of the axle housing 4 After the tightening is completed, the rotary chuck 1 is rotated 90 degrees clockwise, the other outer peripheral surface of the pipa hole and the other side 408 of the straight arm are completely exposed, and the shape detection of the other outer peripheral surface of the pipa hole and the other side 408 of the straight arm is completed;

(2) Section thickness detection, including the following steps:

(1) The cover plate 16 is opened, the lifting platform 14 is raised, the pipa hole of the axle housing 4 passes through the positioning mandrel 5, the axle housing 4 is placed on the lifting platform stably, and the pneumatic push rod 15 moves to completely position the axle housing 4, as shown in the figure As shown in 9: the rotary chuck 1 moves to the designated position and clamps the axle housing 4, the pneumatic push rod 15 retracts, the lift table 14 descends, and the cover plate 16 closes; Above the third area 410 of the tube, start to measure the thickness of the first group of inspection points directly below the laser ultrasonic instrument 7. After the first group of inspection points is completed, the rotary chuck 1 is rotated 45 degrees clockwise so that the second group of inspection points is located at Right below the laser ultrasonic instrument 7, the thickness measurement is carried out again. In this way, when the thickness measurement of the eighth group of inspection points is completed, the thickness measurement work of the third area 409 of the left end round tube and the third area 410 of the right end round tube is completed;

(2) The cover plate 16 is opened, the lifting platform 14 is raised, the pipa hole of the axle housing 4 passes through the positioning mandrel 5, the axle housing 4 is placed on the lifting platform 14 stably, the rotary chuck 1 returns to the original position, and the pneumatic push rod 15 The action makes the axle housing 4 completely positioned, as shown in Figure 8: the rotary chuck 1 is moved to the two ends and clamped, the laser ultrasonic instrument 7 is moved to the top of the fourth area 411 of the left round tube and the fourth area 412 of the right end round tube, and starts to align Thickness measurement is performed at the first group of inspection points directly below the laser ultrasonic instrument 7. After the first group of inspection points is completed, the rotary chuck 1 is rotated 45 degrees clockwise so that the second group of inspection points is located directly below the laser ultrasonic instrument 7, and again Thickness measurement is carried out in this way. When the thickness measurement of the eighth group of inspection points is completed, the thickness measurement work of the fourth area 411 of the left end round tube and the fourth area 412 of the right end round tube is completed;

(3) The laser ultrasonic instrument 7 moves to the top of the front plane of the pipa hole and the front plane 405 of the axle housing arm, and completes the thickness measurement of the detection point 405 on the front plane of the pipa hole and the front plane of the axle housing arm;

(4) The rotating chuck 1 rotates 90 degrees clockwise to complete the thickness measurement of the 406 detection points on an outer peripheral surface of the pipa hole and a side of the straight arm. The turntable 8 installed on the measuring arm 11 makes the laser ultrasonic thickness gauge 7 rotate at a set angle to realize the thickness measurement of the detection point on the arc surface;

(5) The rotary chuck 1 is rotated 90 degrees clockwise to complete the thickness measurement of the 407 detection points on the back plane of the pipa hole and the back plane of the straight arm;

(6) The rotating chuck 1 rotates 90 degrees clockwise to complete the thickness measurement of the other outer peripheral surface of the pipa hole and the other side 408 of the straight arm; the other outer peripheral surface of the pipa hole and the other side 408 of the straight arm are circles On the arc surface, the turntable 8 installed on the mechanical measuring arm 11 makes the laser ultrasonic thickness gauge 7 rotate at a set angle to realize the thickness measurement of the detection point on the arc surface;

(3) Output test results:

According to the thickness measurement results and interpolation numerical principles, the thickness of each section of the axle housing is obtained, and combined with the shape inspection results to obtain a 3D model of the axle housing, the 3D model is compared with the design drawings of the axle housing, and the comparison results are output to complete the axle housing inspection .

Claims (2)

1. An axle housing detection platform, characterized in that: the visual scanner and the ultrasonic laser measuring instrument are connected to the front end of the mechanical measuring arm, the X-direction displacement adjustment device of the mechanical measurement arm is fixedly connected on the support platform, and the Y-direction displacement adjustment device is vertically fixed On the X-direction displacement adjustment device, the Z-direction displacement adjustment device is fixedly connected to the Y-direction displacement adjustment device, and the mechanical measuring arm is vertically fixedly connected to the slider on the Z-direction displacement adjustment device, and is always parallel to the supporting platform. The mechanical measuring arm The turntable is installed in the middle, the positioning mandrel is fixedly installed in the center of the lifting platform, the pneumatic push rod is installed in the four corners of the lifting platform, the pneumatic lifting column is fixedly installed on the supporting platform, and the two ends of the supporting platform are connected to the movable rotary chuck in the Y direction, and the pneumatic lifting The central planes of the column, the rotary chuck and the lifting platform are located on the same plane, and the cover plate is slidably connected with the support platform and is located above the lifting platform. 2. The axle housing detection platform according to claim 1, characterized in that: the structure of the lifting platform is: the motor is located above the support plate, two worm gear boxes are located on both sides of the motor, and the two output ends of the motor It is connected to the worm gears in the two worm gear boxes, and the worms in the two worm gear boxes are connected to the platform. There are four guide columns under the four corners of the support plate. The lifting of the platform is realized by the motor driving the worm gear mechanism in the worm gear box. Ensure the smooth operation of the lifting platform.