CN205844206U - A kind of device the most qualified by fish-eye lens group detection guard frame rail - Google Patents

Abstract

The utility model discloses a device for detecting whether the beam of a shelf is qualified through a fisheye lens group, which comprises a base, a conveyor belt, a proximity switch, a block, a push cylinder, a measuring bracket, a gantry frame, an image shooting module, and a screw drive module 1. Pressing the cylinder and flipping the drive module, the image capture module is provided with two groups, and the two groups of image capture modules are respectively arranged at the front and rear ends of the measurement bracket, and are used for image acquisition of the two pairs of mounting holes before and after the workpiece to be measured; Both groups of image capturing modules include industrial cameras, parallel light sources and lens groups. The utility model adopts the field curvature principle of the lens group to adjust the compression rate of the photographed image of the installation hole at a far distance. The closer to the middle, the higher the compression rate, and the closer to the two ends, the lower the compression rate. The distance between the two mounting holes is relatively close, and the volume is correspondingly increased, which is convenient for image discrimination, greatly improves the accuracy of measurement results, and improves the efficiency of detection.

Description

A device for detecting whether the beam of a shelf is qualified through a fisheye lens group

technical field

The utility model relates to the field of shelf crossbeam detection, in particular to a device for detecting whether the shelf crossbeam is qualified through a fisheye lens group.

Background technique

Modern large-scale production promotes the socialization, specialization, high mechanization and automation of industrial production, which requires that the supply of materials should be distributed in a timely, rapid and accurate manner, and also promotes the rapid development of storage technology. As a member of storage facilities, steel shelves are an indispensable part of modern logistics centers and distribution centers. Shelves are an important tool for warehouse modernization and efficiency improvement. Shelves generally refer to shelves for storing goods, and shelves are storage equipment for storing items. For example, in general stores, goods are often displayed on shelves. In order to improve the display of goods and facilitate loading and unloading of goods, a large number of different components are used. Among them, whether the length of the shelf beam is qualified or not directly affects the ability of the shelf. Normal installation will affect the final quality of the shelf.

The shelf beam is usually a sheet metal part with a certain length, and a pair of mounting holes are opened at both ends. The length of the shelf beam is very high, and the mounting holes must be set at the specified position; usually the shelf beam needs to be stamped during the production process. Forming, punching, and cutting are three processes, and the inspection of the shelf beam needs to be measured after all processes are completed; since the length and installation hole position detection is carried out after all processes are completed, if one of the processes fails , resulting in unqualified shelf beams, it cannot be fed back to the production process in time, and the consequence is a series of unqualified products following the unqualified products.

Because the position of the installation hole of the shelf beam is fixed, as long as you use the self-learning method, select a standard part, use an industrial camera to take pictures of the standard hole, as a standard picture, and use an industrial camera when inspecting the shelf beam to be tested. The photographed picture is compared with the standard picture, so that the length of the shelf beam to be tested can be judged by whether the position of the mounting hole is deviated from the standard part, and the mounting hole can be judged by observing whether the photographed mounting hole is defective whether it is passed.

However, when using an industrial camera to actually shoot, because the diameter of the mounting hole is small, usually less than 10mm, and the distance between the two mounting holes is usually more than 50mm, and the image taken by the industrial camera usually includes two mounting holes at the same end, The image captured in this way will appear to have too large a blank area, and the volume of the two installation holes that need to be captured is very small, which is not conducive to the later image processing. If it is necessary to improve the shooting accuracy of the installation hole, a high-precision camera is required, which will inevitably increase the equipment cost.

Utility model content

The purpose of this utility model is to provide a device for detecting whether the beam of a shelf is qualified through a fisheye lens group in view of the above-mentioned deficiencies in the prior art. The effect of shooting at a shorter distance improves the speed of image processing and detection efficiency.

The technical scheme of the utility model is realized as follows: a device for detecting whether the beam of the shelf is qualified through a fisheye lens group, including a base, a conveyor belt, a proximity switch, a stopper, a push cylinder, a measuring bracket, a gantry frame, and an image shooting Module, lead screw drive module, compression cylinder and flip drive module, the conveyor belt is set on the base, the feed port of the conveyor belt is connected to the discharge port of the pre-cutting process, and the end of the conveyor belt is conveyed along the Proximity switches and stoppers are arranged in sequence in the belt movement direction. The proximity switches are embedded in the base and are used to detect whether there is a workpiece to be measured on the base. The stopper is fixed above the base and is used to limit the workpiece to be measured; One side of the conveyor belt is provided with a push cylinder perpendicular to the conveying direction of the conveyor belt, and the other side is provided with a measuring bracket. After the proximity switch is triggered, the movement of the push cylinder is controlled, and the push cylinder pushes the workpiece to be measured on the conveyor belt. to the measuring bracket; the pressing cylinder is arranged on the measuring bracket and close to the feeding port of the conveyor belt, and the pressing cylinder is used to compress the workpiece to be measured along the moving direction of the conveyor belt; the gantry is fixed on Right above the measuring bracket, the left and right ends of the gantry are fixed on the base through two brackets; the two ends of the measuring bracket are connected to the base through two rotating shafts, and the turning drive module is respectively connected to the base and the measuring bracket. Driving the measuring bracket to rotate along the two rotation axes when the overturning drive module moves;

The image capture module is provided with two groups, and the two groups of image capture modules are respectively arranged at the front and rear ends of the measuring bracket, and are used for image acquisition of two pairs of mounting holes before and after the workpiece to be measured; the two groups of image capture modules include industrial A camera, a parallel light source and a lens group, the parallel light source is fixed at the bottom of the measurement bracket, the measurement bracket is provided with a light transmission hole corresponding to the position of the parallel light source, the industrial camera is arranged directly above the parallel light source, The camera head of the industrial camera faces vertically downward, and the lens group is installed on the camera head of the industrial camera. The lens group is a field curvature lens capable of changing the resolution of the industrial camera. After the light hole and the mounting hole are irradiated onto the lens group, the lens group refracts the parallel light rays. The closer to the axis of the lens group, the higher the compression rate of the parallel light rays is, and the closer to the two ends of the lens group, the lower the parallel light beam compression rate. The parallel rays are refracted by the lens group and then irradiated onto the industrial camera.

Further, the base is also equipped with a closed casing, and the conveyor belt, proximity switch, stopper, measuring bracket, gantry, image capture module, lead screw drive module, pressing cylinder and turning drive module are all arranged in the closed casing. Inside the shell.

Further, it also includes a screw drive module, the screw drive module is fixed on the gantry; the screw drive module includes a positioning motor, a coupling and a ball screw, the positioning motor is fixed on the gantry, and the ball screw The rod is fixed on the gantry frame through two bearing seats. The ball screw is set parallel to the conveyor belt. The positioning motor is connected to the ball screw through a coupling. The ball screw is equipped with a slider. A set of images The industrial camera of the shooting module is fixed on one end of the gantry frame through the camera mount, and the industrial camera of the other group of image capture modules is fixed on the slider through the camera mount, and the positioning motor drives the ball screw to rotate with the slider The connected industrial camera moves linearly along the ball screw.

Further, the push cylinder is arranged in the middle of the conveyor belt, and the front end of the push cylinder is provided with a first push plate.

Further, the side of the measuring bracket close to the conveyor belt is provided with a slope surface.

Further, two limit baffles are arranged at both ends of the feeding port of the conveyor belt, and the two limit baffles are arranged in parallel, and the distance between the two limit baffles is equal to the width of the conveyor belt.

Further, the measuring bracket is provided with L-shaped ribs, the two ribs of the L-shaped ribs are perpendicular to each other, and one rib of the L-shaped rib is used to push the cylinder to compress the workpiece to be measured. The limit at one end, the other rib of the L-shaped rib is used for the limit at the other end of the workpiece to be measured when the compression cylinder compresses the workpiece to be measured.

Further, the slider is provided with a U-shaped groove, and the bottom of the camera mount is provided with a bar-shaped slider, and the slider is set on the bar-shaped slide rail through the U-shaped groove.

Further, the measuring bracket is provided with a magnetic scale, and the end of the piston rod of the pressing cylinder is connected to a second pusher plate, and the second pusher plate is provided with a magnetic scale matched with the magnetic scale. grid head.

Further, the turning drive module includes a first support, a second support and a turning cylinder, the first support is fixed on the base, the second support is fixed on the measurement bracket, and the two ends of the turning cylinder are respectively connected to the first A support and a second support are hinged.

The technical concept of the utility model is: the workpiece to be measured will be cut into individual workpieces to be measured by a whole long strip-shaped sheet metal in the pre-cutting process, and after the workpiece to be measured completes the cutting process, the cut The workpiece to be tested will still be pushed forward by the uncut long sheet metal parts, and will enter the feeding port at the front end of the conveyor belt from the outlet of the pre-cutting process, and the workpiece to be tested will be restricted by two limit baffles. The movement direction of the workpiece will not shift, the workpiece to be measured enters the detection device through two limit baffles; the workpiece to be measured will be driven by the conveyor belt to accelerate after entering the conveyor belt, and the movement speed set by the conveyor belt is the pre-cutting process. The speed of the workpiece to be tested at the middle outlet is 1.5-2 times. The workpiece to be tested quickly enters the detection device under the acceleration of the conveyor belt, passes through the proximity switch and reaches the position of the stopper. It is blocked by the stopper and cannot continue to move. The proximity switch Receive the signal that the workpiece to be measured passes, and transmit the signal to the controller, the controller controls the push cylinder to start moving, and the push cylinder pushes the workpiece to be measured from the conveyor belt to the measuring bracket and the L-shaped stop of the measured bracket One of the ribs on the side is blocked, and the cylinder of the compression cylinder moves at this time to compress the workpiece to be measured to the other side of the L-shaped rib of the measuring bracket. When both the compression cylinder and the push cylinder have completed the compression operation , the workpiece to be measured is at the measurement position; the image capture system at both ends of the measurement bracket is used to shoot the workpiece to be measured on the measurement bracket, and the images of the mounting holes at both ends of the workpiece to be measured are obtained; the images of the two sets of image capture systems are Perform image processing, compare the two with the standard image, and judge based on the center point position of the installation hole in the image, the size of the installation hole, and whether there are defects on the edge of the installation hole. If the center point position of the installation hole is consistent with the standard image, then Indicates that the length of the workpiece to be tested is the same as the standard length, and the workpiece to be tested is qualified; if the position of the center point of the mounting hole is different from the standard image, it means that the length of the workpiece to be tested is different from the standard length, and the workpiece to be tested is unqualified The workpiece to be tested; if the size of the mounting hole is unqualified or there are defects on the edge of the mounting hole, it means that the mounting hole is unqualified, and the workpiece to be tested is also an unqualified workpiece to be tested.

After the measurement is completed, the push cylinder and the compression cylinder are quickly reset, the flip drive module moves, and the measurement bracket is driven to rotate and unload. After the blanking is completed, the flip drive module drives the measurement bracket to return to the initial position. Since the single measurement process of the utility model only needs 2-5s, the single workpiece to be measured is cut off in the previous process just after the measurement of a single workpiece to be measured is completed, so the detection process can be continuously and automatically carried out.

During the movement of the pressing cylinder, the magnetic grating head at the front end of the compressing cylinder will move on the magnetic scale. At this time, the length of the workpiece to be measured can be calculated according to the moving distance of the magnetic grating head, and the length can be directly read. , which is mainly used when setting known qualified parts.

A group of industrial cameras of the utility model is arranged on the lead screw driving module, and is mainly used for adjusting the distance between the group of industrial cameras and another group of industrial cameras, so as to adapt to the measurement of workpieces to be measured with different lengths.

Take pictures of the two pairs of mounting holes at both ends of the shelf beam, judge whether the length of the shelf beam is qualified by whether the position of each pair of mounting holes is correct, and judge whether there are defects in the mounting holes by comparing the photographed pictures with the standard pictures. Because there are two installation holes at both ends of the shelf beam, the size of the two installation holes is less than 10mm, and the distance between the two installation holes is often more than 50mm, so if you directly use an industrial camera to shoot, you need to place the two installation holes If they are all captured, an industrial camera with high resolution must be used for shooting, otherwise the captured mounting hole is too small, which is not conducive to image processing; and using the field curvature principle of the lens group, the parallel light emitted by the parallel light source passes through the lens group After refraction, the parallel light is compressed. The closer the parallel light is to the axis, the higher the compression rate is, and the closer the parallel light is to the two ends, the lower the compression rate. Finally, two ellipses with a closer distance are imaged, although the final received image It is not two circles that are completely consistent with the installation hole image, but the utility model adopts the idea of comparing with the standard image to judge whether the beam of the shelf to be tested is qualified, even if the final image is irregular, it will not have any impact on the final judgment result. At the same time, because two smaller installation holes are enlarged into a larger image, the accuracy of measurement can be greatly improved and the efficiency of image discrimination can be accelerated.

The beneficial effects of the utility model are:

1. The utility model has simple and compact structure, low production cost, and the detection process of the installation hole is continuously carried out online without interrupting the production process, which greatly improves the production efficiency and detection efficiency, and uses the detection results for real-time monitoring, effectively avoiding the The phenomenon of continuous unqualified products has improved the production quality.

2. The utility model uses an industrial camera for image acquisition to detect the mounting holes, and judges whether the beam of the shelf to be tested is qualified through the position of the mounting hole on the image, and takes images of the mounting holes at both ends of the beam of the shelf to be tested The method of comparing with the standard image is used to judge whether there is a defect in the installation hole and whether the length of the workpiece to be tested is qualified. The detection process is convenient and the detection accuracy is high.

3. The utility model realizes the automatic feeding, automatic detection and automatic unloading of the detection process. The whole process does not need manual processing, which avoids the measurement errors caused by various human factors that are easy to occur in manual detection; the whole device has a high degree of automation and is extremely Greatly improved detection efficiency and detection quality.

4. The utility model can adjust the distance between two industrial cameras through the screw drive module, so that the device is suitable for the detection of shelf beams of various sizes.

5. The utility model adopts the principle of field curvature of the lens group to adjust the compression rate of the photographed image of the installation hole at a far distance. The closer to the middle, the higher the compression rate, and the closer to the two ends, the lower the compression rate. The captured image The distance between the two installation holes is relatively close, and the volume is correspondingly increased, which is convenient for image discrimination, greatly improves the accuracy of measurement results, and improves the efficiency of detection.

6. The utility model sets a magnetic grating head on the compression cylinder, and uses the movement distance of the compression cylinder to indirectly calculate the length of the workpiece to be measured, further enhancing the measurement effect and improving the accuracy of detection.

Description of drawings

The utility model will be further described in detail below in conjunction with the embodiments in the accompanying drawings, but it does not constitute any limitation to the utility model.

Fig. 1 is a perspective view of a device for detecting whether a beam of a shelf is qualified through a fish-eye lens group of the present invention.

Fig. 2 is a perspective view of the utility model after removing the sealing shell.

Fig. 3 is a front view of a device for detecting whether a beam of a shelf is qualified through a fish-eye lens group of the present invention.

Fig. 4 is a bottom view of a device for detecting whether a beam of a shelf is qualified through a fish-eye lens group of the present invention.

Fig. 5 is A-A sectional view of the utility model.

Fig. 6 is a schematic structural view of the measuring bracket of the present invention.

Fig. 7 is a schematic structural view of the slider of the present invention.

Fig. 8 is a schematic diagram of the connection between the industrial camera and the slider of the utility model.

Fig. 9 is a structural schematic diagram of the flip driving module of the present invention.

Fig. 10 is a schematic diagram of a standard image captured by the industrial camera of the present invention.

In the figure, 1-base, 2-workpiece to be measured, 3-conveyor belt, 4-push cylinder, 5-measurement bracket, 6-industrial camera, 7-lens group, 8-pressing cylinder, 9-proximity switch, 10-block, 11-gantry, 12-positioning motor, 13-ball screw, 14-coupling, 15-limit baffle, 16-L-shaped rib, 17-bracket, 18-bearing seat, 19-Slider, 20-First pusher plate, 21-Second pusher plate, 22-Slope surface, 23-Strip slide rail, 24-Light hole, 25-Magnetic head, 26-Magnetic ruler , 27-first support, 28-second support, 29-overturn cylinder, 30-closed shell.

detailed description

Below in conjunction with accompanying drawing, the utility model is further described:

Referring to Figures 1 to 10, a device for detecting whether a shelf beam is qualified through a fisheye lens group of the present invention includes a base (1), a conveyor belt (3), a proximity switch (9), a stopper (10), Push cylinder (4), measuring bracket (5), gantry (11), image capture module, lead screw drive module, compression cylinder (8) and flip drive module, and the conveyor belt (3) is arranged on the base ( 1), the feed port of the conveyor belt (3) is connected to the discharge port of the pre-cutting process, and the end of the conveyor belt (3) is sequentially provided with a proximity switch (9) and Block (10), the proximity switch (9) is embedded on the base (1) and is used to detect whether there is a workpiece (2) to be measured on the base (1), and the block (10) is fixed on the base ( 1) above and used to limit the workpiece (2) to be measured; one side of the conveyor belt (3) is provided with a push cylinder (4) perpendicular to the conveying direction of the conveyor belt (3), and the other side is provided with a measuring Bracket (5), the push cylinder (4) is controlled to move after the proximity switch (9) is triggered, and the push cylinder (4) pushes the workpiece (2) on the conveyor belt (3) to the measuring bracket (5) above; the pressing cylinder (8) is arranged on the measuring bracket (5) and close to the feeding port of the conveyor belt (3), and the pressing cylinder (8) is used to press the conveyor belt (3) along the moving direction Close to the workpiece (2) to be measured; the gantry (11) is fixed directly above the measuring bracket (5), and the left and right ends of the gantry (11) are fixed on the base (1) by two brackets (17); The two ends of the measuring bracket (5) are connected to the base (1) through two rotating shafts, and the turning drive module is respectively connected to the base (1) and the measuring bracket (5), and the turning driving module drives the measuring The carriage (5) rotates along two axes of rotation.

Described image capturing module is provided with two groups, and two groups of image capturing modules are respectively arranged on the front and rear ends of the measuring bracket (5), and is used for image acquisition of two pairs of mounting holes before and after the workpiece (2) to be measured; two groups of diagrams The image shooting modules all include an industrial camera (6), a parallel light source and a lens group (7), the parallel light source is fixed on the bottom of the measurement bracket (5), and the measurement bracket (5) is provided with Corresponding to the light transmission hole (24), the industrial camera (6) is arranged directly above the parallel light source, the camera head of the industrial camera (6) is vertically downward, and the lens group (7) is installed on the industrial On the camera head of the camera (6), the lens group (7) is a field curvature lens capable of changing the resolution of the industrial camera (6). On the lens group (7), the lens group (7) refracts parallel rays, the closer to the axis of the lens group (7), the higher the compression ratio of the parallel rays, and the closer to the two ends of the lens group, the lower the compression ratio of the parallel rays , the parallel light rays are refracted by the lens group (7) and irradiated onto the industrial camera (6).

The base (1) is also equipped with a closed housing (30), a conveyor belt (3), a proximity switch (9), a block (10), a measuring bracket (5), a gantry (11), an image capture The module, the lead screw drive module, the pressing cylinder (8) and the overturning drive module are all arranged inside the closed casing (30).

The device also includes a screw drive module, the screw drive module is fixed on the gantry (11); the screw drive module includes a positioning motor (12), a shaft coupling (14) and a ball screw (13) , the positioning motor (12) is fixed on the gantry (11), and the ball screw (13) is fixed on the gantry (11) by two bearing blocks (18), and the ball screw (13) and the conveyor belt ( 3) Parallel setting, the positioning motor (12) is connected to the ball screw (13) through the shaft coupling (14), the ball screw (13) is covered with a slider (19), and one group of image capture modules The industrial camera (6) is fixed on one end of the gantry (11) by the camera mount, and the industrial camera (6) of another group of image capturing modules is fixed on the slide block (19) by the camera mount, and the positioning motor ( 12) When the ball screw (13) is driven to rotate, the industrial camera (6) connected to the slider (19) is driven to move linearly along the ball screw (13).

The push cylinder (4) is arranged in the middle of the conveyor belt (3), and the front end of the push cylinder (4) is provided with a first push plate (20).

The side of the measuring bracket (5) close to the conveyor belt (3) is provided with a slope surface (22). When the measurement bracket 5 rotates around the rotation axis under the action of the overturn drive module, if there is no effect of the slope surface 22, it will inevitably cause contact between the edge of the measurement bracket 5 and the base 1, causing the rotation to not proceed normally; The surface 22 can facilitate the entry of the workpiece 2 from the base 1 into the measuring bracket 5 and prevent the workpiece from being stuck at the joint between the base 1 and the measuring bracket 5 .

The two ends of the feeding port of the conveyor belt (3) are provided with two limit baffles (15), and the two limit baffles (15) are arranged in parallel, and between the two limit baffles (15) The spacing equals the width of conveyor belt (3).

The measuring bracket (5) is provided with L-shaped ribs (16), two ribs of the L-shaped ribs (16) are perpendicular to each other, and one rib of the L-shaped ribs (16) is used to push the cylinder ( 4) The other end of the workpiece (2) to be measured is limited when the workpiece to be measured (2) is pressed, and the other side of the L-shaped rib (16) is used to compress the cylinder (8) to compress the workpiece to be measured (2) ) is the limit at the other end of the workpiece (2) to be measured.

The slider (19) is provided with a U-shaped groove, and the bottom of the camera mount is provided with a bar-shaped slider (19), and the slider (19) is set on the bar-shaped slide rail (23) through the U-shaped groove. superior. Under the combined action of the strip guide rail 23 and the ball screw 13, the slider 19 is guaranteed to move linearly in a direction parallel to the moving direction of the conveyor belt 3 .

The measuring bracket (5) is provided with a magnetic scale (26), and the end of the piston rod of the pressing cylinder (8) is connected to the second pushing plate (21), on the second pushing plate (21) A magnetic grating head (25) matched with the magnetic grating scale (26) is provided. When the compression cylinder 8 moves, it drives the second pusher plate 21 at the front end of the compression cylinder 8 to move. When the second pusher plate 21 moves, it drives the magnetic grid head 25 to move synchronously. The magnetic grid head 25 detects the distance that the compression cylinder 8 moves. The length of the workpiece can be calculated according to the data of the magnetic scale 26 when the initial position of the cylinder 8 is pressed. The main function of the magnetic scale 26 is to measure the length of a standard workpiece when replacing and measuring workpieces of different sizes.

Described overturn drive module comprises first support (27), second support (28) and overturn cylinder (29), and first support (27) is fixed on the base (1), and second support (28) Fixed on the measuring bracket (5), the two ends of the turning cylinder (29) are respectively hinged with the first support (27) and the second support (28). The base of the overturning cylinder 29 is connected to the first support 27, and the end of the piston rod of the overturning cylinder 29 is connected to the second support 28. The first support 27 is fixed, and the overturning cylinder 29 itself will go around the first support when it moves. 27 rotates, and the piston rod end of the overturning cylinder 29 drives the second bearing 29 to rotate around the two rotating shafts on the measuring bracket 5, thereby realizing the rotating blanking of the measuring bracket 5. The overturn driving module adopts a cam mechanism, which can ensure that the measuring bracket rotates within a certain angle range.

The above-mentioned embodiments are preferred implementation modes of the present utility model, which are only used to facilitate the description of the present utility model, and are not intended to limit the present utility model in any form. Anyone with ordinary knowledge in the technical field, if they do not depart from this utility model Within the scope of the technical features mentioned in the utility model, the equivalent embodiments that make partial changes or modifications made by using the technical content disclosed in the utility model, and do not deviate from the technical features of the utility model, still belong to the technical features of the utility model In the range.

Claims (10)

1. one kind by the fish-eye lens group detection the most qualified device of guard frame rail, it is characterised in that: include base (1), defeated Send band (3), proximity switch (9), block (10), push cylinder (4), measure bracket (5), portal frame (11), image taking module, Leading screw drives module, compression cylinder (8) and upset to drive module, and described conveyer belt (3) is arranged on base (1), described conveying The charging aperture of band (3) connects the discharging opening of preposition cut-out operation, and the end of described conveyer belt (3) is along conveyer belt (3) direction of motion Setting gradually proximity switch (9) and block (10), described proximity switch (9) is embedded in base (1) and above and is used for detecting base (1) On whether have workpiece for measurement (2) process, described block (10) be fixed on base (1) top and be used for workpiece for measurement (2) is carried out Spacing；The side of described conveyer belt (3) is provided perpendicular to the propelling movement cylinder (4) that conveyer belt (3) carriage direction is arranged, opposite side Being provided with measurement bracket (5), described proximity switch (9) controls after triggering to push cylinder (4) motion, and pushing cylinder (4) will conveying Workpiece for measurement (2) on band (3) is pushed to measure on bracket (5)；Described compression cylinder (8) be arranged on measurement bracket (5) upper and Near the charging aperture of conveyer belt (3), described compression cylinder (8) is for compressing workpiece for measurement (2) along conveyer belt (3) direction of motion； Described portal frame (11) is fixed on directly over measurement bracket (5), and the two ends, left and right of portal frame (11) are solid by two supports (17) It is scheduled on base (1)；The two ends of described measurement bracket (5) connect base (1) by two rotary shafts, and described upset drives module Connecting base (1) respectively and measure bracket (5), upset drives described measurement bracket (5) along two rotations when driving block motion Axle rotates；

Described image taking module is provided with two groups, and two groups of image taking modules are separately positioned on two ends before and after measurement bracket (5), Before and after to workpiece for measurement (2), two pairs of mounting hole carries out image acquisition；Two groups of image taking modules all include industrial camera (6), source of parallel light and battery of lens (7), described source of parallel light is fixed on measurement bracket (5) bottom, measures and is provided with on bracket (5) The loophole (24) corresponding with described source of parallel light position, described industrial camera (6) is arranged on the surface of source of parallel light, institute Stating the photographic head of industrial camera (6) the most down, described battery of lens (7) is arranged on the photographic head of described industrial camera (6), institute Stating battery of lens (7) is the curvature of field camera lens that can change industrial camera (6) resolution, the parallel rays warp successively of source of parallel light injection Being irradiated to after crossing loophole (24) and installing hole on battery of lens (7), parallel rays is reflected by battery of lens (7), the closer to thoroughly Parallel rays compression ratio at mirror group (7) axial line is the highest, and the parallel rays compression ratio entering to organize two ends the closer to head is the lowest, parallel Light is irradiated on industrial camera (6) after battery of lens (7) reflects.

A kind of device the most qualified by fish-eye lens group detection guard frame rail the most according to claim 1, its feature It is: on described base (1), be also equipped with closing housing (30), conveyer belt (3), proximity switch (9), block (10), measurement bracket (5), portal frame (11), image taking module, leading screw drive module, compression cylinder (8) and upset to drive module to may be contained within envelope Closed shell body (30) is internal.

A kind of device the most qualified by fish-eye lens group detection guard frame rail the most according to claim 1, its feature Being: also include that leading screw drives module, described leading screw drives module to be fixed on portal frame (11)；Described leading screw drives module bag Including positioning motor (12), shaft coupling (14) and ball-screw (13), positioning motor (12) is fixed on portal frame (11), ball wire Thick stick (13) is fixed on portal frame (11) by two bearing blocks (18), and described ball-screw (13) is parallel with conveyer belt (3) to be set Putting, positioning motor (12) connects ball-screw (13) by shaft coupling (14), and described ball-screw is set with slide block on (13) (19), the industrial camera (6) of one of which image taking module is fixed on one end of portal frame (11) by camera mounting seat, separately The industrial camera (6) of one group of image taking module is fixed on slide block (19) by camera mounting seat, described positioning motor (12) Ball-screw (13) is driven when rotating, to drive the industrial camera (6) being connected with slide block (19) to transport along described ball-screw (13) straight line Dynamic.

A kind of device the most qualified by fish-eye lens group detection guard frame rail the most according to claim 1, its feature Being: described propelling movement cylinder (4) is arranged on the middle part of conveyer belt (3), the front end pushing cylinder (4) is provided with the first scraping wings (20)。

A kind of device the most qualified by fish-eye lens group detection guard frame rail the most according to claim 1, its feature It is: described measurement bracket (5) is provided with slope (22) near the side of conveyer belt (3).

A kind of device the most qualified by fish-eye lens group detection guard frame rail the most according to claim 1, its feature Being: the two ends of the charging aperture of described conveyer belt (3) are provided with two pieces of postive stop baffles (15), two pieces of postive stop baffles (15) are parallel to be set Put, and the spacing between two pieces of postive stop baffles (15) is equal to the width of conveyer belt (3).

A kind of device the most qualified by fish-eye lens group detection guard frame rail the most according to claim 1, its feature Being: be provided with L-type rib (16) on described measurement bracket (5), two ribs of L-type rib (16) are mutually perpendicular to, L-type rib (16) when a rib is used for pushing cylinder (4) compression workpiece for measurement (2), workpiece for measurement (2) other end is spacing, L-type rib (16) another rib for compression cylinder (8) compress workpiece for measurement (2) time workpiece for measurement (2) other end spacing.

A kind of device the most qualified by fish-eye lens group detection guard frame rail the most according to claim 3, its feature Being: described slide block (19) is provided with U-shaped groove, be provided with stripe shape slide block (19) bottom camera mounting seat, described slide block (19) leads to Cross U-shaped groove to be sleeved on bar shaped slide rail (23).

A kind of device the most qualified by fish-eye lens group detection guard frame rail the most according to claim 1, its feature Being: described measurement bracket (5) is provided with magnetic railings ruler (26), the piston rod end of described compression cylinder (8) connects the second pusher Plate (21), the second scraping wings (21) is provided with the magnetic grid head (25) matched with described magnetic railings ruler (26).

A kind of device the most qualified by fish-eye lens group detection guard frame rail the most according to claim 1, its feature It is: described upset drives module to include the first bearing (27), the second bearing (28) and upset cylinder (29), the first bearing (27) Being fixed on base (1), the second bearing (28) is fixed in measurement bracket (5), and the two ends of upset cylinder (29) are respectively with first Bearing (27) and the second bearing (28) are hinged.