CN111006618B - Automatic comprehensive detection equipment for rear axle of commercial vehicle - Google Patents
Automatic comprehensive detection equipment for rear axle of commercial vehicle Download PDFInfo
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- CN111006618B CN111006618B CN201911346183.1A CN201911346183A CN111006618B CN 111006618 B CN111006618 B CN 111006618B CN 201911346183 A CN201911346183 A CN 201911346183A CN 111006618 B CN111006618 B CN 111006618B
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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
- G01B21/00—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant
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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
- G01B21/00—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant
- G01B21/02—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring length, width, or thickness
- G01B21/08—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring length, width, or thickness for measuring thickness
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B21/00—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant
- G01B21/10—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring diameters
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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
- G01B5/00—Measuring arrangements characterised by the use of mechanical techniques
- G01B5/0025—Measuring of vehicle parts
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- General Physics & Mathematics (AREA)
- Length Measuring Devices With Unspecified Measuring Means (AREA)
Abstract
The invention discloses automatic comprehensive detection equipment for a rear axle of a commercial vehicle, which comprises a workbench, and a driving center structure, a driven center structure, a flange hole and spring seat measuring structure, a feeding station structure, a sliding table structure, a left end diameter measuring structure and a right end diameter measuring structure which are arranged on the workbench, wherein the driving center structure and the driven center structure are respectively arranged at two side ends of the workbench; the problem of because having considered axle housing detection accuracy and efficiency, lead to appearing because of output and the loss of quality that detection mode and detection efficiency brought is solved.
Description
Technical Field
The invention relates to the technical field of rear axle detection of commercial vehicles, in particular to automatic comprehensive detection equipment for a rear axle of a commercial vehicle.
Background
DP commercial car rear-axle housing is 320 platform designs, for equal platform axle housing, length is long, and size and geometric tolerances require the precision high, are applicable to different road conditions and use. Meanwhile, the DP axle housing is used for high-end pickup trucks which are exported to the United states, and each axle housing is required to be detected and recorded for quality management and tracing. Therefore, the DP axle housing detection efficiency and the record storage mode should be improved as much as possible. And on the premise of ensuring the machining precision, detecting in a mode of composite drawing reference.
However, most of the existing commercial vehicle rear axle static measurement and dynamic measurement are separately detected, the rear axle needs to be disassembled and then installed when the two kinds of data are detected, the efficiency is low, and due to the consideration of axle housing detection precision and efficiency, the loss of yield and quality caused by the detection mode and the detection efficiency is caused, so that the problem of solving the same kind is particularly important.
Disclosure of Invention
Aiming at the problems, the invention provides automatic comprehensive detection equipment for a rear axle of a commercial vehicle, which aims to solve the problem of yield and quality loss caused by a detection mode and detection efficiency due to consideration of axle housing detection precision and efficiency.
In order to realize the technical scheme, the invention provides automatic comprehensive detection equipment for a rear axle of a commercial vehicle, which comprises a workbench, and a driving center structure, a driven center structure, a flange hole and spring seat measuring structure, a feeding station structure, a sliding table structure, a left end diameter measuring structure and a right end diameter measuring structure which are arranged on the workbench, wherein the driving center structure and the driven center structure are respectively arranged at two side ends of the workbench, the flange hole and spring seat measuring structure and the feeding station structure are arranged in the middle of the workbench, the sliding table structures are respectively arranged at two sides of the flange hole and spring seat measuring structure, and the left end diameter measuring structure and the right end diameter measuring structure are respectively arranged on the sliding table structures at two sides.
The further improvement lies in that: the lower extreme of workstation is provided with the adjustment lower margin still be provided with automatically controlled cabinet on the workstation.
The further improvement lies in that: the driving center structure comprises a driving center base, a driving center disc, a locking cylinder, a follower and a three-jaw chuck, a sliding rail is arranged on the driving center base and used for mounting the motor and the follower, the locking cylinder is arranged on one side of the driving center base, the locking cylinder controls the motor to move on the sliding rail, the three-jaw chuck driven by the chuck motor is arranged on the chuck motor, and a circle of driving center disc is arranged at the end part of the three-jaw chuck.
The further improvement lies in that: the driven center structure comprises a driven center base, a driven center disc and a driven cylinder, a slide rail is arranged on the driven center base and used for mounting the driven center disc, the driven cylinder is further arranged on the driven center base, and the driven cylinder controls the driven center disc to move on the slide rail.
The further improvement lies in that: the flange hole and spring seat measuring structure comprises a slide rail seat, a rear axle ring surface positioning plate and a spring seat measuring box, wherein the rear axle ring surface positioning plate is vertically installed on a slide rail of the slide rail seat, an air cylinder for controlling the rear axle ring surface positioning plate to move on the slide rail is arranged on the slide rail seat, installation seats for installing the spring seat measuring box are arranged on two sides of the rear axle ring surface positioning plate, and the slide rail is arranged on the installation seats for placing the spring seat measuring box; and a flange hole detection rod and a detection sensor are arranged on the upper surface of the spring seat measurement box.
The further improvement lies in that: the material loading station structure is including backup pad, lifter plate, left branch brace and right branch brace, the backup pad is installed the front end of workstation be provided with the slide rail in the backup pad and be used for installing the lifter plate, be provided with left branch brace and right branch brace respectively in the both sides of lifter plate, be provided with the fixture block that the rear axle was used in the placement on left branch brace and the right branch brace, be provided with the cylinder of control lifter plate displacement in the backup pad.
The further improvement lies in that: the sliding table structure comprises a sliding table base, a drag chain mounting plate, a buffer and a position sensor, wherein the sliding table base is provided with a movable plate through a sliding rail, the sliding table base is provided with a cylinder for controlling the movable plate to move on the sliding rail, and a telescopic rod of the cylinder is connected with the movable plate through a spring; one side of the movable plate is connected with a drag chain mounting plate for mounting a drag chain, and the other side of the movable plate is provided with a position sensor.
The further improvement lies in that: the movable plate is provided with a left end diameter measuring structure or a right end diameter measuring structure, and the left end diameter measuring structure is the same as the right end diameter measuring structure; the diameter measuring structure at the left end comprises a measuring and positioning plate, measuring arms, a protective frame, a diameter measuring and positioning frame and a sensor, wherein the diameter measuring and positioning frame is arranged in the middle of the measuring and positioning plate, the measuring arms are symmetrically arranged at the upper end and the lower end of the diameter measuring and positioning frame in a left-right mode, measuring heads are arranged at the upper ends of the measuring arms, and the sensor is arranged on the measuring and positioning plate according to actual detection requirements; one end of the measuring arm is provided with a protective frame; and a clamping block for mounting a rear axle shaft head is arranged in front of the measuring positioning plate, and the clamping block and the measuring arm are arranged in a staggered manner.
The invention has the beneficial effects that: the double-centre-plate positioning and clamping mechanism is provided with a driving centre structure and a driven centre structure to position and clamp by adopting a double-centre-plate, one end of a rear axle body is provided with a single-end key groove, and the single-end key groove is driven by a three-jaw chuck of the driving centre structure to prevent an axle housing from being collided and damaged; the axle housing is accurately positioned, conveniently and quickly by using the feeding station structure to automatically clamp; according to actual measurement needs, the dynamic measurement and the static comprehensive measurement are integrated into one device, the shaft heads at two ends of the bridge are jumped after the dynamic measurement, the flange hole and the spring seat measurement structure are extended out after the positioning, the reinforcing ring surface height, the reinforcing ring hole position degree, the steel support annual height, the steel support hole size position degree and the like are statically measured, the clamping is performed for one time, the data are detected, calculated, displayed and recorded, the detection precision is high, the efficiency is high, and the labor intensity of operators is reduced.
Drawings
FIG. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a schematic view of the structure of the live center of the present invention.
Fig. 3 is a schematic view of the driven tip structure of the present invention.
FIG. 4 is a schematic view of a flange hole and spring seat measurement structure of the present invention.
Fig. 5 is a schematic diagram of the structure of the feeding station of the invention.
Fig. 6 is a schematic view of a sliding table structure according to the present invention.
FIG. 7 is a schematic diagram of a left end diameter measurement configuration of the present invention.
FIG. 8 is a first perspective view of a left end diameter measurement configuration of the present invention.
FIG. 9 is a second perspective view of the left end diameter measurement configuration of the present invention.
Wherein: 1. a work table;
2. a driving center structure; 211. a driving center base; 212. a driving center disk; 213. a locking cylinder; 214. a follower; 215. a three-jaw chuck; 216. a chuck motor;
3. a driven centre structure; 311. a driven centre base; 312. a driven center disk; 313. a slave cylinder;
4. a flange hole and spring seat measuring structure; 411. a slide rail seat; 412. a rear axle ring surface positioning plate; 413. a spring seat measurement box; 414. a mounting seat; 415. a flange hole detection rod;
5. a feeding station structure; 511. a support plate; 512. a lifting plate; 513. a left support arm; 514. a right support arm; 515. a clamping block;
6. a sliding table structure; 611. a sliding table base; 612. a drag chain mounting plate; 613. a buffer; 614. a position sensor; 615. moving the plate;
7. a left end diameter measurement structure; 8. A right end diameter measurement structure; 9. adjusting the ground feet; 10. an electric control cabinet; 11. measuring a positioning plate; 12. measuring an arm; 13. a protective frame; 14. diameter measurement locating rack.
Detailed Description
In order to further understand the present invention, the following detailed description will be made with reference to the following examples, which are only used for explaining the present invention and are not to be construed as limiting the scope of the present invention.
According to fig. 1, this embodiment provides an automatic comprehensive testing equipment for commercial car rear axle, including workstation 1 and install initiative top structure 2, driven top structure 3, flange hole and spring holder on the workstation and measure structure 4, material loading station structure 5, slip table structure 6, left end diameter measurement structure 7 and right-hand member diameter measurement structure 8, the both sides end of workstation 1 is provided with initiative top structure 2 and driven top structure 3 respectively the middle part of workstation 1 is provided with flange hole and spring holder measurement structure 4 and material loading station structure 5 the both sides of flange hole and spring holder measurement structure 4 all are provided with slip table structure 6, both sides be provided with left end diameter measurement structure 7 and right-hand member diameter measurement structure 8 on the slip table structure 6 respectively. The lower extreme of workstation 1 is provided with adjustment lower margin 9 still be provided with automatically controlled cabinet 10 on the workstation 1.
According to the figure 2, the driving center structure 2 comprises a driving center base 211, a driving center disc 212, a locking cylinder 213, a follower 214 and a three-jaw chuck 215, a slide rail is arranged on the driving center base 211 and used for installing a chuck motor 216 and the follower 214, the locking cylinder 213 is arranged on one side of the driving center base 211 and used for controlling the chuck motor to move on the slide rail, the chuck motor is provided with the three-jaw chuck 215 driven by the chuck motor, and a circle of driving center disc 212 is arranged at the end part of the three-jaw chuck 215.
As shown in fig. 3, the driven center structure 3 includes a driven center base 311, a driven center disc 312 and a driven cylinder 313, the driven center base 311 is provided with a slide rail for mounting the driven center disc 312, the driven center base 311 is further provided with the driven cylinder 313, and the driven cylinder 313 controls the driven center disc 312 to move on the slide rail.
As shown in fig. 4, the flange hole and spring seat measuring structure 4 includes a slide rail seat 411, a rear axle ring surface positioning plate 412 and a spring seat measuring box 413, the rear axle ring surface positioning plate 412 is vertically installed on a slide rail of the slide rail seat 411, an air cylinder for controlling the rear axle ring surface positioning plate 412 to move on the slide rail is installed on the slide rail seat 411, both sides of the rear axle ring surface positioning plate 412 are provided with installation seats 414 for installing the spring seat measuring box 413, and a slide rail for placing the spring seat measuring box 413 is installed on the installation seats 414; a flange hole detection lever 415 and a detection sensor are provided on an upper surface of the spring seat measurement box 413.
According to fig. 5, the feeding station structure 5 comprises a support plate 511, a lifting plate 512, a left support arm 513 and a right support arm 514, the support plate 511 is installed at the front end of the workbench 1, a slide rail is arranged on the support plate 511 for installing the lifting plate 512, the left support arm 513 and the right support arm 514 are respectively arranged on two sides of the lifting plate 512, clamping blocks 515 for placing a rear axle are arranged on the left support arm 513 and the right support arm 514, and a cylinder for controlling the displacement of the lifting plate is arranged on the support plate 511.
According to fig. 6, the sliding table structure 6 includes a sliding table base 611, a drag chain mounting plate 612, a buffer 613 and a position sensor 614, the sliding table base 611 is mounted with a moving plate 615 through a sliding rail, the sliding table base 611 is provided with a cylinder, the moving plate 615 is controlled by the cylinder to move on the sliding rail, and a telescopic rod of the cylinder is connected with the moving plate 615 through a spring 616 and the buffer 613; a tow chain attachment plate 612 for attaching a tow chain is connected to one side of the moving plate 615, and a position sensor 614 is provided on the other side.
According to fig. 7, 8 and 9, a left end diameter measuring structure 7 or a right end diameter measuring structure 8 is arranged on the moving plate 615, and the left end diameter measuring structure 7 and the right end diameter measuring structure 8 are the same; the left end diameter measuring structure 7 comprises a measuring and positioning plate 11, a measuring arm 12, a protection frame 13, a diameter measuring and positioning frame 14 and a sensor, wherein the diameter measuring and positioning frame 14 is arranged in the middle of the measuring and positioning plate 11, the measuring arms 12 are symmetrically arranged at the upper end and the lower end of the diameter measuring and positioning frame 14 in a left-right mode, a measuring head 15 is arranged at the upper end of each measuring arm 12, and the sensor is arranged on the measuring and positioning plate 11 according to actual detection requirements; one end of the measuring arm 12 is provided with a protective frame 13; a fixture block 515 for mounting a rear axle spindle head is arranged in front of the measuring positioning plate 11, and the fixture block 515 and the measuring arm 12 are arranged in a staggered manner.
A key groove is formed in one end of the rear axle for fixing, and an ABS bracket is arranged on the rear axle for detection.
The method comprises the following specific operation steps:
a. a workpiece (a rear axle) is hoisted to the loading station structure 5, and two ends of the workpiece are clamped by clamping blocks 515 on a left supporting arm 513 and a right supporting arm 514;
b. the clamping button is started, the lifting plate 512 drives the supporting plate 511 to descend to a measuring position, at the moment, the driving center structure 2 and the driven center structure 3 extend out, the two ends of the axle housing are tightly propped by the driving center disc 212 and the driven center disc 312, the driving center disc 212 rotates, the elastic clamping jaws of the three-jaw chuck 215 are clamped into the key groove position after rotating to the key groove position of the workpiece, and one end of the workpiece is fixed by the three-jaw chuck 215; the workpiece is driven to rotate by 90 degrees, and when the ABS bracket sensor senses the ABS bracket on the workpiece, the rotation is stopped;
c. pressing down a measurement double control button, simultaneously extending the left end diameter measurement structure 7 and the right end diameter measurement structure 8 to the axle housing measurement position, driving the workpiece to rotate by the three-jaw chuck 215, and starting to perform dynamic measurement;
d. the driving center disc 212 on the three-jaw chuck 215 drives the workpiece to rotate, after the workpiece is collected for a circle of size, when the workpiece rotates to the vertical direction of the axle housing, the ABS bracket sensor is on, the rotation is stopped, and the dynamic measurement is finished;
e. the flange hole and spring seat measuring structure 4 moves forward to a measuring position, the spring seat measuring box 413 rises, so that a sensor and a flange hole detecting rod on the spring seat measuring box 413 contact the wall surface and the inner hole of the workpiece to start static measurement;
f. after the measurement of the spring seat measurement box 413 is finished, the spring seat measurement box returns, the flange hole and the spring seat measurement structure returns, and the static measurement is finished;
g. the left end diameter measuring structure and the right end diameter measuring structure are withdrawn, the driving center structure and the driven center structure are withdrawn, the workpiece is supported to a feeding position by the feeding station structure, and the automatic measuring process is finished;
h. after the measurement result is calculated, the measurement result is displayed on a special software interface of a computer display, and the code scanning is prompted to input the serial number of the workpiece; after the serial number is input, a confirmation key is pressed, the whole measuring process is finished, and the measuring result is automatically stored in a computer.
The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (6)
1. The utility model provides a commercial car rear axle is with automatic check out test set that synthesizes which characterized in that: the automatic centering device comprises a workbench (1), and a driving center structure (2), a driven center structure (3), a flange hole and spring seat measuring structure (4), a feeding station structure (5), a sliding table structure (6), a left end diameter measuring structure (7) and a right end diameter measuring structure (8) which are arranged on the workbench, wherein the driving center structure (2) and the driven center structure (3) are respectively arranged at two side ends of the workbench (1), the flange hole and spring seat measuring structure (4) and the feeding station structure (5) are arranged in the middle of the workbench (1), the sliding table structures (6) are respectively arranged at two sides of the flange hole and spring seat measuring structure (4), and the left end diameter measuring structure (7) and the right end diameter measuring structure (8) are respectively arranged on the sliding table structures (6) at two sides;
the sliding table structure (6) comprises a sliding table base (611), a drag chain mounting plate (612), a buffer (613) and a position sensor (614), a moving plate (615) is mounted on the sliding table base (611) through a sliding rail, an air cylinder is arranged on the sliding table base (611), the moving plate (615) is controlled to move on the sliding rail through the air cylinder, and an expansion rod of the air cylinder is connected with the moving plate (615) through a spring (616) and the buffer (613); a tow chain mounting plate (612) for mounting a tow chain is connected to one side of the moving plate (615), and a position sensor (614) is arranged on the other side of the moving plate;
the moving plate (615) is provided with a left end diameter measuring structure (7) or a right end diameter measuring structure (8), and the left end diameter measuring structure (7) is the same as the right end diameter measuring structure (8); the left end diameter measuring structure (7) comprises a measuring positioning plate (11), a measuring arm (12), a protection frame (13), a diameter measuring positioning frame (14) and sensors, the diameter measuring positioning frame (14) is arranged in the middle of the measuring positioning plate (11), the measuring arms (12) are arranged at the upper end and the lower end of the diameter measuring positioning frame (14) in a bilateral symmetry mode, a measuring head (15) is arranged at the upper end of each measuring arm (12), and the measuring positioning plate (11) is provided with a contact type sensor or a laser sensor for measurement according to actual detection requirements; a protective frame (13) is arranged at one end of the measuring arm (12); a fixture block (515) for mounting a rear axle spindle head is arranged in front of the measuring positioning plate (11), and the fixture block (515) and the measuring arm (12) are arranged in a staggered manner.
2. The automatic comprehensive detection device for the rear axle of the commercial vehicle as claimed in claim 1, wherein: the lower end of the workbench (1) is provided with an adjusting anchor (9), and the workbench (1) is also provided with an electric control cabinet (10).
3. The automatic comprehensive detection device for the rear axle of the commercial vehicle as claimed in claim 1, wherein: the active center structure (2) comprises an active center base (211), an active center disc (212), a locking cylinder (213), a follower (214) and a three-jaw chuck (215), a slide rail is arranged on the active center base (211) and used for installing a chuck motor (216) and the follower (214), the locking cylinder (213) is arranged on one side of the active center base (211), the chuck motor is controlled by the locking cylinder (213) to move on the slide rail, the three-jaw chuck (215) driven by the chuck motor is arranged on the chuck motor, and a circle of the active center disc (212) is arranged at the end part of the three-jaw chuck (215).
4. The automatic comprehensive detection device for the rear axle of the commercial vehicle as claimed in claim 1, wherein: the driven centre structure (3) comprises a driven centre base (311), a driven centre disc (312) and a driven cylinder (313), a slide rail is arranged on the driven centre base (311) and used for mounting the driven centre disc (312), the driven centre base (311) is further provided with the driven cylinder (313), and the driven cylinder (313) controls the driven centre disc (312) to move on the slide rail.
5. The automatic comprehensive detection device for the rear axle of the commercial vehicle as claimed in claim 1, wherein: the flange hole and spring seat measuring structure (4) comprises a slide rail seat (411), a rear axle ring surface positioning plate (412) and a spring seat measuring box (413), wherein the rear axle ring surface positioning plate (412) is vertically installed on a slide rail of the slide rail seat (411), an air cylinder for controlling the rear axle ring surface positioning plate (412) to move on the slide rail is arranged on the slide rail seat (411), installation seats (414) for installing the spring seat measuring box (413) are respectively arranged on two sides of the rear axle ring surface positioning plate (412), and a slide rail for placing the spring seat measuring box (413) is arranged on each installation seat (414); a flange hole detection rod (415) and a detection sensor are arranged on the upper surface of the spring seat measurement box (413).
6. The automatic comprehensive detection device for the rear axle of the commercial vehicle as claimed in claim 1, wherein: material loading station structure (5) is including backup pad (511), lifter plate (512), left branch brace (513) and right branch brace (514), backup pad (511) are installed the front end of workstation (1) be provided with the slide rail on backup pad (511) and be used for installing lifter plate (512), be provided with left branch brace (513) and right branch brace (514) respectively in the both sides of lifter plate (512), be provided with fixture block (515) that the rear axle was used in placing on left branch brace (513) and right branch brace (514), be provided with the cylinder of control lifter plate displacement on backup pad (511).
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|---|---|---|---|
| CN201911346183.1A CN111006618B (en) | 2019-12-24 | 2019-12-24 | Automatic comprehensive detection equipment for rear axle of commercial vehicle |
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|---|---|---|---|
| CN201911346183.1A CN111006618B (en) | 2019-12-24 | 2019-12-24 | Automatic comprehensive detection equipment for rear axle of commercial vehicle |
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| CN111006618A CN111006618A (en) | 2020-04-14 |
| CN111006618B true CN111006618B (en) | 2021-06-15 |
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| CN207423070U (en) * | 2017-09-27 | 2018-05-29 | 南京晨伟机械设备制造有限公司 | One kind is used for output shaft outer diameter comprehensive check tool |
| CN107990828A (en) * | 2017-12-26 | 2018-05-04 | 齐鲁工业大学 | Driving axle housing class accessory size and geometric tolerance rapid measurement device |
| CN108225231A (en) * | 2018-01-02 | 2018-06-29 | 吉林圆方机械集团有限公司 | For detecting the detection device of the workpiece diameter of axle and jerk value |
| CN208567672U (en) * | 2018-04-02 | 2019-03-01 | 重庆华威模具有限公司 | For detecting the detection structure and cubing of the weldment on rear axle case ontology |
| CN109141931A (en) * | 2018-10-23 | 2019-01-04 | 十堰市安旭工贸有限公司 | A kind of comprehensive Detecting data of commercial vehicle rear axle assy |
| CN109813250A (en) * | 2019-04-01 | 2019-05-28 | 吉林大学 | A kind of axle housing detection platform and detection method |
| CN110044299A (en) * | 2019-05-29 | 2019-07-23 | 吉林大学 | A kind of cylindrical parts excircle size and Form and position error non-contact intelligent detection instrument |
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