CN105783717A - Device for detecting shelf beam by use of ring optical fiber set - Google Patents
Device for detecting shelf beam by use of ring optical fiber set Download PDFInfo
- Publication number
- CN105783717A CN105783717A CN201610201609.4A CN201610201609A CN105783717A CN 105783717 A CN105783717 A CN 105783717A CN 201610201609 A CN201610201609 A CN 201610201609A CN 105783717 A CN105783717 A CN 105783717A
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- bracket
- conveyer belt
- optical fibre
- frame rail
- cylinder
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B11/00—Measuring arrangements characterised by the use of optical techniques
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B11/00—Measuring arrangements characterised by the use of optical techniques
- G01B11/02—Measuring arrangements characterised by the use of optical techniques for measuring length, width or thickness
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Length Measuring Devices By Optical Means (AREA)
Abstract
The invention discloses a device for detecting a shelf beam by use of a ring optical fiber set, comprising a base, a conveyor belt, a proximity switch, a stopper, a push cylinder, a measurement bracket, optical fiber detection modules, a parallel light source, a closed shell, and a compression cylinder. The parallel light source is vertically mounted at the bottom of the measurement bracket. The measurement bracket is provided with a light hole corresponding to the position of the parallel light source. The optical fiber detection modules are arranged right above the measurement bracket. Each optical fiber detection module includes a group of ring optical fibers and a point optical fiber in the center of the ring optical fibers, and the inner diameter of the ring optical fibers is slightly larger than the diameter of the mounting hole of a work piece to be detected. According to the invention, the position of the mounting hole is detected by use of optical fibers, whether the parallel light source works properly is judged by use of the point optical fibers, whether the position of the mounting hole is qualified is detected by use of the ring optical fibers, detection is completed with only a few optical fiber bundles, and the cost of equipment is reduced greatly. Moreover, detection is convenient, and the precision of detection is high.
Description
Technical field
The present invention relates to shelf and produce detection technique field, more specifically, particularly relate to a kind of device utilizing optical fibre ring group to carry out guard frame rail detection.
Background technology
The big production of modernization promotes commercial production socialization, specialization, high mechanization and automatization, and it is timely, rapid, accurate that this just requires the supply of goods and materials to distribute, and also promotes storage technique to obtain rapid development simultaneously.Steel shelf, as a member in storage facilities, are modern logistics center, the requisite ingredient of home-delivery center.Shelf are warehouse modernizations and put forward high efficiency important tool, and shelf refer to the shelf depositing goods, and shelf are the safedeposits for depositing work piece.Such as, in general shop, goods is often displayed on shelf, in order to improve the display of goods, so that being contained in and unload goods, and employ components different in a large number, wherein, whether the length of guard frame rail qualified, directly affect shelf can normal mounting, affect shelf final mass.
Existing guard frame rail adopts sheet-metal member fast ram to make after cutting off substantially, guard frame rail is shaped as strip, its two ends have a pair installing hole, one side of strip upwards digs formation supporting surface, and the weight capacity of web beam, its supporting surface is again provided with some to installing hole.The length of guard frame rail is the very important index whether crossbeam guard frame rail is qualified, and when length is qualified, the position of installing hole also must be very accurate simultaneously.But guard frame rail needs, through punch forming, punching, three operations of cut-out, the length detection process of guard frame rail to be measured after all techniques complete in the process produced, its metering system is artificial sampling observation often；Owing to length detection is to carry out after all technique completes, therefore, a certain operation in production is once break down and not finding in time, can cause being that batch substandard product occurs, therefore arrange one on a production line for detecting guard frame rail length and the whether qualified device of position of mounting hole and seem particularly necessary.
In the detection process to guard frame rail, common detection method is manual detection, and namely workman utilizes survey farm labourer to have the length manually measuring guard frame rail, and whether observe installing hole by the mode estimated qualified；This detection process is loaded down with trivial details, and accuracy of detection is not high, and the manpower of consumption is relatively big, and generally the mode only with artificial selective examination detects, it is impossible to all guard frame rails are detected one by one.And if the method adopting image acquisition, first the position of mounting hole of standard component is shot, obtains standard picture, then part to be measured is shot, the picture obtained and standard picture are carried out image procossing, draw, by contrasting, the conclusion whether part to be measured qualified；Although this metering system broken away from Traditional Man measure limitation, but industrial camera is relatively costly, in addition it is also necessary to computer carries out image procossing, so will certainly extend detection consuming time, be unfavorable for reduce equipment cost and accelerate detection carrying out.
Summary of the invention
Present invention aims to above-mentioned the deficiencies in the prior art, thering is provided a kind of device utilizing optical fibre ring group to carry out guard frame rail detection, this device can realize the automatic charging of guard frame rail, detection and blanking, and automaticity is high, with low cost, greatly improve detection efficiency and detection quality.
The technical scheme is that and be achieved in that: a kind of device utilizing optical fibre ring group to carry out guard frame rail detection, including base, conveyer belt, proximity switch, block, propelling movement cylinder, measure bracket, fiber detection module, source of parallel light, closing housing and compression cylinder, described closing housing is fixed on above base, and described conveyer belt, proximity switch, block, measurement bracket, fiber detection module, source of parallel light and compression cylinder are arranged at enclosure；Described conveyer belt is arranged on base, and described base sets gradually proximity switch and block along conveyer belt discharging mouth direction, and proximity switch is embedded on base, and block is fixed on above base；The side of described conveyer belt is provided with propelling movement cylinder, and opposite side is provided with measurement bracket, and proximity switch controls to push cylinder moving after triggering, and pushes cylinder and is pushed to by the part to be measured on conveyer belt on measurement bracket；Described compression cylinder is arranged on described measurement bracket near one end of conveyer belt charging aperture, and compression cylinder is for compressing guard frame rail to be measured to measuring the bracket other end；Described measurement bracket rotates axle by two and connects base, described base is additionally provided with upset cylinder, the piston rod end of upset cylinder and the bottom-hinged measuring bracket, drives described measurement bracket rotary unloading during upset cylinder moving；
Described source of parallel light is vertically installed at the bottom measuring bracket, measures and arranges the loophole corresponding with described source of parallel light position on bracket, and described fiber detection module is arranged on the surface measuring bracket；Described fiber detection module includes one group of optical fibre ring and is positioned at the some optical fiber of optical fibre ring circle centre position, and the internal diameter size of described optical fibre ring is slightly larger than the installing hole diameter of workpiece for measurement.
Further, it is additionally provided with light shielding block between described fiber detection module and source of parallel light, described light shielding block is provided with the circular light tight film consistent with the installing hole diameter of workpiece for measurement, the outer ring of described light tight film is provided with the light tank of annular, and the circle centre position of described light tight film has printing opacity through hole.
Further, the internal diameter of described optical fibre ring is than big 50-100 μm of the installing hole diameter of workpiece for measurement.
Further, two fiber detection modules constitute a fiber laser arrays group, and the rear and front end measuring bracket is provided with a fiber laser arrays group.
Further, described base is additionally provided with one of them fiber laser arrays group of portal frame and is fixed on the portal frame measuring rack end, another fiber laser arrays group connects portal frame by screw drive mechanism, described screw drive mechanism includes ball-screw, feed screw nut, shaft coupling and positioning motor, one end of ball-screw connects positioning motor by shaft coupling, feed screw nut adapter sleeve is contained on ball-screw, another fiber laser arrays group is fixed on feed screw nut, described positioning motor drives to drive during ball screw turns and is measuring above bracket along belt direction rectilinear motion with the fiber laser arrays group that feed screw nut is connected；Loophole below described positioning motor is bar shape trench hole.
Further, the charging aperture place of described conveyer belt is provided with symmetrical two pieces of postive stop baffles.
Further, described base being additionally provided with portal frame, described fiber detection module is arranged on described portal frame.
Further, described propelling movement cylinder is arranged on the middle part of conveyer belt, and the direction pushing cylinder is perpendicular to the direction of conveyer belt.
Further, described measurement bracket is provided with slope near the side of conveyer belt.
Further, described measurement bracket is provided with L-type rib, two ribs of L-type rib are parallel and perpendicular to the transmission direction of conveyer belt respectively, wherein a rib is for pushing the compression location of guard frame rail to be measured during cylinder moving, the compression location of guard frame rail when another rib is for compression cylinder motion.
The technology design of the present invention is as follows: workpiece for measurement can be cut into the workpiece for measurement of one one in preposition cut-out operation by an overall long ribbon shape sheet metal component, after workpiece for measurement completes to cut off operation, the strip sheet metal component that workpiece for measurement after cut-out still can not cut off promotes and travels forward, and the charging aperture of conveyer belt front end is entered by the discharging opening of preposition cut-out operation, the direction of motion being limited workpiece for measurement by two pieces of postive stop baffles will not offset, and workpiece for measurement enters detecting device through two pieces of postive stop baffles；nullWorkpiece for measurement can be transferred band and drive accelerated motion after entering conveyer belt，The movement velocity that conveyer belt is arranged is in preposition cut-out operation 1.5-2 times of discharge outlet workpiece for measurement speed，Workpiece for measurement quickly enters in detecting device under the acceleration of conveyer belt drives，Through proximity switch and arrive at stop location，Blocked by block and cannot continue motion，Proximity switch receives the signal of workpiece for measurement process，And transmit the signal to controller，Controller controls to push cylinder setting in motion，Workpiece for measurement is pushed to measurement bracket from conveyer belt by propelling movement cylinder and a rib of the L-type rib of measured bracket blocks，Now compression cylinder cylinder moving，Workpiece for measurement is compressed to another rib direction of the L rib measuring bracket，When compression cylinder and propelling movement cylinder all complete to compress operation，Workpiece for measurement is in measurement position.
When workpiece for measurement is positioned at measurement position, the parallel rays circular light beam that injection is consistent with installing hole diameter after installing hole penetrates of source of parallel light injection, fiber detection module is used for receiving above-mentioned circular light beam, owing to the optical fibre ring diameter of fiber detection module is slightly larger than installing hole diameter, any one on optical fibre ring point optical fiber all cannot receive optical signal under normal circumstances, if any one optical fiber on fiber detection module on optical fibre ring receives optical signal, the position then representing installing hole existing defects or installing hole is not right, therefore may determine that the length of workpiece for measurement or installing hole occur defective, namely judge that guard frame rail to be measured is as defective；The point optical fiber of optical fibre ring circle centre position is used for detecting whether source of parallel light normally sends parallel rays.
After measurement, pushing cylinder and compression cylinder Rapid reset, upset drives block motion, drives and measures carriage turns blanking, overturns the dynamic bracket of measuring of modular belt and be returned to initial position after blanking.
The beneficial effects of the present invention is:
1, present configuration is simply compact, and production cost is low, and installing hole detection process continuously performs, without terminal production process, greatly improve detection efficiency, and utilize testing result to feed back the production phase in time, it is prevented effectively from production process to occur the probability of substandard product, improves the quality of production.
2, the present invention utilizes the mode of optical fiber that the position of installing hole is detected, utilize some fiber laser arrays source of parallel light whether normal operation, utilize optical fibre ring detection position of mounting hole whether qualified, only need to adopt several fibre bundles can complete detection process, optical signal can be received by optical fibre ring and judge that whether the position of installing hole is correct, whether qualified by the length of the position judgment of installing hole guard frame rail to be measured and installing hole, greatly reduce the cost of equipment, and detection process is convenient, accuracy of detection is high.
3, automatic charging of the present invention, automatically detection, automatic blanking, whole detection process is without artificial treatment, it is to avoid manpower detects the measurement error caused, whole process automaticity is high, greatly improve detection efficiency and detection quality；The position adjustable of one of them industrial camera, it is possible to meet the detection of various sizes of guard frame rail to be measured.
4, the present invention adjusts the position of one group of fiber laser arrays group by screw drive mechanism, it is possible to meet the detection of different size guard frame rail, improves the suitability of detection equipment.
Accompanying drawing explanation
Below in conjunction with the embodiment in accompanying drawing, the present invention is described in further detail, but is not intended that any limitation of the invention.
Fig. 1 is the first 3-D view of a kind of device utilizing optical fibre ring group to carry out guard frame rail detection of the present invention.
Fig. 2 is the second 3-D view of a kind of device utilizing optical fibre ring group to carry out guard frame rail detection of the present invention.
Fig. 3 is the front view of a kind of device utilizing optical fibre ring group to carry out guard frame rail detection of the present invention.
Fig. 4 is the upward view of a kind of device utilizing optical fibre ring group to carry out guard frame rail detection of the present invention.
Fig. 5 is the top view of a kind of device utilizing optical fibre ring group to carry out guard frame rail detection of the present invention.
Fig. 6 is the front view of fiber laser arrays group of the present invention.
Fig. 7 is the upward view of fiber laser arrays group of the present invention.
Fig. 8 is A-A sectional view.
In figure, 1-base, 2-close housing, 3-conveyer belt, 4-pushes cylinder, 5-measures bracket, 6-fiber detection module, 7-postive stop baffle, 8-compression cylinder, 9-proximity switch, 10-block, 11-portal frame, 12-positioning motor, 13-ball-screw, 14-shaft coupling, 15-overturn cylinder, 16-light shielding block, 17-optical fibre ring, 18-point optical fiber.
Detailed description of the invention
Below in conjunction with accompanying drawing, the present invention is further detailed:
Consult shown in Fig. 1～8, a kind of device utilizing optical fibre ring group to carry out guard frame rail detection of the present invention includes base 1, conveyer belt 3, proximity switch 9, block 10, pushes cylinder 4, measures bracket 5, fiber detection module, source of parallel light, closing housing 2 and compression cylinder 8, described closing housing 2 is fixed on above base 1, and it is internal that described conveyer belt 3, proximity switch 9, block 10, measurement bracket 5, fiber detection module, source of parallel light and compression cylinder 8 are arranged at closing housing 2；Described conveyer belt 3 is arranged on base 1, and described base 1 sets gradually proximity switch 9 and block 10 along conveyer belt 3 discharging opening direction, and proximity switch 9 is embedded on base 1, and block 10 is fixed on above base 1；The side of described conveyer belt 3 is provided with propelling movement cylinder 4, and opposite side is provided with measurement bracket 5, and proximity switch 9 controls to push cylinder 4 and moves after triggering, push cylinder 4 and be pushed to by the part to be measured on conveyer belt 3 on measurement bracket 5；Described compression cylinder 8 is arranged on described measurement bracket 5 near one end of conveyer belt 3 charging aperture, and compression cylinder 8 is for compressing guard frame rail to be measured to measuring bracket 5 other end；Described measurement bracket 5 rotates axle by two and connects base 1, and described base 1 is additionally provided with upset cylinder 15, the piston rod end of upset cylinder 15 and the bottom-hinged measuring bracket 5, and upset cylinder 15 drives described measurement bracket 5 rotary unloading when moving；Described source of parallel light is vertically installed at the bottom measuring bracket 5, measures and arranges the loophole corresponding with described source of parallel light position on bracket 5, and described fiber detection module is arranged on the surface measuring bracket 5；Described fiber detection module includes one group of optical fibre ring 17 and is positioned at the some optical fiber 18 of optical fibre ring 17 circle centre position, and the internal diameter size of described optical fibre ring 17 is slightly larger than the installing hole diameter of workpiece for measurement.
Light shielding block 16 it is additionally provided with between described fiber detection module and source of parallel light, described light shielding block 16 is provided with the circular light tight film consistent with the installing hole diameter of workpiece for measurement, the outer ring of described light tight film is provided with the light tank of annular, and the circle centre position of described light tight film has printing opacity through hole.
The internal diameter of described optical fibre ring 17 is than big 50-100 μm of the installing hole diameter of workpiece for measurement.
Two fiber detection modules constitute a fiber laser arrays group 6, and the rear and front end measuring bracket 5 is provided with a fiber laser arrays group 6.Described base 1 is additionally provided with one of them fiber laser arrays group 6 of portal frame 11 and is fixed on the portal frame 11 measuring bracket 5 end, another fiber laser arrays group 6 connects portal frame 11 by screw drive mechanism, described screw drive mechanism includes ball-screw 13, feed screw nut, shaft coupling 14 and positioning motor 12, one end of ball-screw 13 connects positioning motor 12 by shaft coupling 14, feed screw nut adapter sleeve is contained on ball-screw 13, another fiber laser arrays group 6 is fixed on feed screw nut, drive when described positioning motor 12 drives ball-screw 13 to rotate and measuring above bracket 5 along conveyer belt 3 direction rectilinear motion with the fiber laser arrays group 6 that feed screw nut is connected；Loophole below described positioning motor 12 is bar shape trench hole.
The charging aperture place of described conveyer belt 3 is provided with symmetrical two pieces of postive stop baffles 7.Two pieces of postive stop baffles 15 be arranged in parallel, and the spacing between two pieces of postive stop baffles 15 is equal or slightly larger than the width of conveyer belt 3.
Being additionally provided with portal frame 11 on described base 1, described fiber detection module is arranged on described portal frame 11.
Described propelling movement cylinder 4 is arranged on the middle part of conveyer belt 3, and the direction pushing cylinder 4 is perpendicular to the direction of conveyer belt 3.
Described measurement bracket 5 is provided with slope near the side of conveyer belt 3.If measurement bracket 5 inevitably results in without the effect of this slope when upset drives the moving axis that rotates under the effect of module to rotate and touches between edge and the base 1 measuring bracket 5, cause that rotation can not be normally carried out；Slope can facilitate workpiece for measurement to enter measurement bracket 5 from base 1 simultaneously, it is prevented that workpiece for measurement blocks in the junction of base 1 and measurement bracket 5.
Described measurement bracket 5 is provided with L-type rib, two ribs of L-type rib are parallel and perpendicular to the transmission direction of conveyer belt 3 respectively, wherein a rib is for pushing the compression location of guard frame rail to be measured when cylinder 4 moves, the compression location of guard frame rail when another rib moves for compression cylinder 8.
Embodiment provided above is the better embodiment of the present invention, only it is used for the present invention is conveniently described, not the present invention is done any pro forma restriction, any art has usually intellectual, if in the scope without departing from the carried technical characteristic of the present invention, utilize the Equivalent embodiments that the done local of disclosed technology contents is changed or modified, and without departing from the technical characteristic content of the present invention, all still fall within the scope of the technology of the present invention feature.
Claims (10)
1. one kind utilizes the device that optical fibre ring group carries out guard frame rail detection, it is characterized in that: include base (1), conveyer belt (3), proximity switch (9), block (10), push cylinder (4), measure bracket (5), fiber detection module, source of parallel light, close housing (2) and compression cylinder (8), described closing housing (2) is fixed on base (1) top, described conveyer belt (3), proximity switch (9), block (10), measure bracket (5), fiber detection module, it is internal that source of parallel light and compression cylinder (8) are arranged at closing housing (2)；Described conveyer belt (3) is arranged on base (1), described base (1) sets gradually proximity switch (9) and block (10) along conveyer belt (3) discharging opening direction, proximity switch (9) is embedded on base (1), and block (10) is fixed on base (1) top；The side of described conveyer belt (3) is provided with propelling movement cylinder (4), opposite side is provided with measurement bracket (5), proximity switch (9) controls after triggering to push cylinder (4) motion, pushes cylinder (4) and is pushed to by the part to be measured on conveyer belt (3) in measurement bracket (5)；Described compression cylinder (8) is arranged on described measurement bracket (5) one end near conveyer belt (3) charging aperture, and compression cylinder (8) is for compressing guard frame rail to be measured to measuring bracket (5) other end；Described measurement bracket (5) rotates axle by two and connects base (1), described base (1) is additionally provided with upset cylinder (15), the piston rod end of upset cylinder (15) and the bottom-hinged measuring bracket (5), drive described measurement bracket (5) rotary unloading during upset cylinder (15) motion；
Described source of parallel light is vertically installed at the bottom measuring bracket (5), measures the loophole that the upper setting of bracket (5) is corresponding with described source of parallel light position, and described fiber detection module is arranged on the surface measuring bracket (5)；Described fiber detection module includes one group of optical fibre ring (17) and is positioned at some optical fiber (18) of optical fibre ring (17) circle centre position, and the internal diameter size of described optical fibre ring (17) is slightly larger than the installing hole diameter of workpiece for measurement.
2. a kind of device utilizing optical fibre ring group to carry out guard frame rail detection according to claim 1, it is characterized in that: between described fiber detection module and source of parallel light, be additionally provided with light shielding block (16), described light shielding block (16) is provided with the circular light tight film consistent with the installing hole diameter of workpiece for measurement, the outer ring of described light tight film is provided with the light tank of annular, and the circle centre position of described light tight film has printing opacity through hole.
3. a kind of device utilizing optical fibre ring group to carry out guard frame rail detection according to claim 1, it is characterised in that: the internal diameter of described optical fibre ring (17) is than big 50-100 μm of the installing hole diameter of workpiece for measurement.
4. a kind of device utilizing optical fibre ring group to carry out guard frame rail detection according to claim 1, it is characterized in that: two fiber detection modules constitute a fiber laser arrays group (6), and the rear and front end measuring bracket (5) is provided with a fiber laser arrays group (6).
null5. a kind of device utilizing optical fibre ring group to carry out guard frame rail detection according to claim 4，It is characterized in that: described base (1) is additionally provided with portal frame (11)，One of them fiber laser arrays group (6) is fixed on the portal frame (11) measuring bracket (5) end，Another fiber laser arrays group (6) connects portal frame (11) by screw drive mechanism，Described screw drive mechanism includes ball-screw (13)、Feed screw nut、Shaft coupling (14) and positioning motor (12)，One end of ball-screw (13) connects positioning motor (12) by shaft coupling (14)，Feed screw nut adapter sleeve is contained on ball-screw (13)，Another fiber laser arrays group (6) is fixed on feed screw nut，Described positioning motor (12) drives ball-screw (13) to drive the fiber laser arrays group (6) being connected with feed screw nut measuring above bracket (5) along conveyer belt (3) direction rectilinear motion when rotating；The loophole of described positioning motor (12) lower section is bar shape trench hole.
6. a kind of device utilizing optical fibre ring group to carry out guard frame rail detection according to claim 1, it is characterised in that: the charging aperture place of described conveyer belt (3) is provided with symmetrical two pieces of postive stop baffles (7).
7. a kind of device utilizing optical fibre ring group to carry out guard frame rail detection according to claim 1, it is characterized in that: be additionally provided with portal frame (11) on described base (1), described fiber detection module is arranged on described portal frame (11).
8. a kind of device utilizing optical fibre ring group to carry out guard frame rail detection according to claim 1, it is characterized in that: described propelling movement cylinder (4) is arranged on the middle part of conveyer belt (3), the direction pushing cylinder (4) is perpendicular to the direction of conveyer belt (3).
9. a kind of device utilizing optical fibre ring group to carry out guard frame rail detection according to claim 1, it is characterised in that: described measurement bracket (5) is provided with slope near the side of conveyer belt (3).
10. a kind of device utilizing optical fibre ring group to carry out guard frame rail detection according to claim 1, it is characterized in that: described measurement bracket (5) is provided with L-type rib, two ribs of L-type rib are parallel and perpendicular to the transmission direction of conveyer belt (3) respectively, when wherein a rib is used for pushing cylinder (4) motion, the compression of guard frame rail to be measured positions, the compression location of guard frame rail when another rib is for compression cylinder (8) motion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610201609.4A CN105783717B (en) | 2016-03-31 | 2016-03-31 | A kind of device that guard frame rail detection is carried out using optical fibre ring group |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610201609.4A CN105783717B (en) | 2016-03-31 | 2016-03-31 | A kind of device that guard frame rail detection is carried out using optical fibre ring group |
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| Publication Number | Publication Date |
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| CN105783717A true CN105783717A (en) | 2016-07-20 |
| CN105783717B CN105783717B (en) | 2018-06-29 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201610201609.4A Active CN105783717B (en) | 2016-03-31 | 2016-03-31 | A kind of device that guard frame rail detection is carried out using optical fibre ring group |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN117006941A (en) * | 2023-08-07 | 2023-11-07 | 安徽凯撒新能源科技有限公司 | Steel frame part punching on-line detection mechanism for solar power station |
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| CN105783717B (en) | 2018-06-29 |
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