CN211802472U - Bar defect detection device based on vision - Google Patents

Abstract

The utility model provides a pair of bar defect detecting device based on vision, it can be used to carry out the defect detection to the bar, including feeding mechanism, detection mechanism and rejection mechanism, feeding mechanism divide into feed zone and ejection of compact section, detection mechanism locates the feed zone, rejection mechanism locates the ejection of compact section, rejection mechanism includes the substandard product basket, feeding mechanism includes two at least drive wheels, the drive wheel sets gradually in feed zone and ejection of compact section in order to constitute the transmission route, the substandard product basket locates transmission route one side, the bar passes through the drive wheel and follows feed zone to ejection of compact section transmission along the transmission route, in the transmission bar, detection mechanism carries out the defect detection to the bar, when detecting the bar and having the defect, rejection mechanism shifts the bar to the substandard product basket. Can go up unloading automatically, realized that the substandard product is rejected automation, and detect the bar when transmitting the bar, greatly improved detection efficiency.

Description

Bar defect detection device based on vision

[ technical field ] A method for producing a semiconductor device

The utility model relates to a defect detection technology field, its in particular to bar defect detecting device based on vision.

[ background of the invention ]

With the development of economic construction and the continuous progress of scientific technology, the manufacturing industry develops rapidly, the intelligent manufacturing is in the 4.0 era along with the industry, the intelligent manufacturing is in the way, the development of the intelligent manufacturing cannot leave high-quality raw materials, and bar materials are used as one of the raw materials for manufacturing parts, so that the occupied proportion is extremely high. During the production process of the bar stock, the surface of the product has more or less defects such as cracks, scratches and the like, which not only affect the appearance of the product, but also reduce the physical properties of the product.

But the existing bar defect detection device has insufficient automation degree and lower detection efficiency.

[ Utility model ] content

In order to overcome the lower problem of current bar defect detection device detection efficiency, the utility model provides a bar defect detection device based on vision.

The utility model discloses a solve above-mentioned technical problem, provide following technical scheme: a bar defect detection device based on vision comprises a feeding mechanism, a detection mechanism and an eliminating mechanism; the feeding mechanism is divided into a feeding section and a discharging section; the detection mechanism is arranged at the feeding section, and the rejection mechanism is arranged at the discharging section; the removing mechanism comprises a defective product basket; the feeding mechanism comprises at least two driving wheels, the at least two driving wheels are sequentially arranged on the feeding section and the discharging section to form a transmission path, the defective product basket is arranged on one side of the transmission path, the bar stock is transmitted from the feeding section to the discharging section along the transmission path through the at least two driving wheels, the detection mechanism detects defects of the bar stock while transmitting the bar stock, and when the detection mechanism detects that the bar stock has defects, the rejection mechanism transfers the bar stock to the defective product basket.

Preferably, the detection mechanism comprises at least three defect cameras and at least six strip-shaped light sources; the defect shooting device surrounds the transmission route in a radial space plane in 360 degrees; the defect shooting device and the two strip-shaped light sources form a group, and the two strip-shaped light sources are oppositely arranged on two sides of the defect shooting device.

Preferably, the bar-shaped light source is perpendicular to the transmission line.

Preferably, the detection mechanism includes three defect cameras; the adjacent defect shooting devices are spaced by 120 degrees and are staggered in the axial direction of the transmission line.

Preferably, the detection mechanism further comprises at least one diameter shooting device and at least one parallel backlight source; the parallel backlight source and the diameter shooting device are oppositely arranged on two sides of the transmission line.

Preferably, the feeding mechanism further comprises at least one driven wheel; at least one driven wheel is arranged between every two driving wheels.

Preferably, the detection mechanism further comprises an industrial personal computer; the industrial personal computer is in communication connection with the defect shooting device so as to detect the defect of the first bar image shot by the defect shooting device; and the industrial personal computer is in communication connection with the diameter shooting device so as to measure the diameter of the second bar image shot by the diameter shooting device.

Preferably, the rejecting mechanism further comprises an electric cylinder device and a fork arm; the electric cylinder device is arranged on the opposite side of the transmission line; one surface of the fork arm, which is close to the transmission path, is an inclined surface, one surface of the fork arm, which is far away from the transmission path, is in contact with the end surface of the electric cylinder device, and the fork arm is arranged between the at least two transmission wheels and is lower than the transmission wheels in height.

Preferably, the electric cylinder device is in communication connection with the industrial personal computer;

and when the electric cylinder device receives a rejection signal sent by the industrial personal computer, the fork arm is driven to jack up the bar so that the bar rolls down to the defective basket along the fork arm.

Preferably, the feeding mechanism further comprises a motor device, an intermediate shaft and a plurality of belt pulleys; the motor device is connected with the intermediate shaft through a coupler, the intermediate shaft is in key connection with one belt wheel of the belt pulley, and the driving wheel is in key connection with the other belt wheel of the belt pulley through a bearing; the motor device drives the intermediate shaft to rotate and the intermediate shaft drives the driving wheel to rotate through the belt pulley.

Compared with the prior art, the utility model provides a bar defect detecting device based on vision has following beneficial effect:

1. the utility model provides a bar defect detection device based on vision, in bar defect detection technical field, a carry out the defect detection to the bar, it includes feeding mechanism, detection mechanism and rejection mechanism, feeding mechanism divide into feed zone and ejection of compact section, detection mechanism locates the feed zone, rejection mechanism locates ejection of compact section, rejection mechanism includes the substandard product basket, feeding mechanism includes two at least drive wheels, the drive wheel sets gradually in feed zone and ejection of compact section in order to constitute the transmission route, transmission route one side is located to the substandard product basket, the bar passes through the drive wheel and follows feed zone to ejection of compact section transmission along the transmission route, in the transmission bar, detection mechanism carries out the defect detection to the bar, when detecting the bar and having the defect, rejection mechanism will shift to the substandard product basket. The automatic feeding mechanism comprises a feeding mechanism body, a bar material feeding mechanism, a bar material detecting mechanism, a rejecting mechanism, a defective product basket, a defective product discharging mechanism and a defective product discharging mechanism. In addition, the bar stock is conveyed and detected at the same time, the conveying of the bar stock is not interrupted, and the detection efficiency of the bar stock defect detection device can be further improved. In addition, the driving wheels are arranged in sequence, so that a small amount of driving wheels can be used for transmitting the bars, the complexity of the feeding mechanism is simplified, the space can be saved, the space utilization rate is improved, and the heat dissipation efficiency is increased. In addition, the defective product basket is used for uniformly collecting the bars detected as defective products, and the subsequent processing of the bars is facilitated.

2. The utility model provides an among the bar defect detection device based on vision, detection mechanism includes three defect shooting devices of at least one and six at least strip light sources, wherein, three defect shooting devices of at least one are used for shooing the defect in order to detect the bar to the bar, the defect shooting device is 360 degrees encircles in the radial space plane of transmission route, can guarantee 360 degrees and shoot the bar comprehensively, avoid the missed shooting, and this kind of detection mode is relative to the detection of single camera, the bar need not spiral roll transmission, greatly improved detection speed, the stability of detection has been improved; two bar light sources are arranged on two sides of the defect shooting device relatively, so that illumination when the defect shooting device shoots the bar can be enhanced, and a good shooting environment is provided.

3. The utility model provides an among the bar defect detection device based on vision, bar light source is the vertical state with transmission route, forms the low angle light source, and the illumination that can guarantee the bar is even, is favorable to defect detection device's shooting.

4. The utility model provides an among the bar defect detection device based on vision, detection mechanism includes that three defect shoots the device, and adjacent defect shoots device interval 120 to and stagger at the axial interval of transmission route and place, this kind of placing mode can 360 shoot the bar comprehensively, avoids leaking and takes, can prevent again that each defect from shooting mutual interference between the device and leading to influencing the formation of image, can improve detection efficiency.

5. In the bar defect detecting device based on vision provided by the utility model, the detecting mechanism further comprises at least one diameter shooting device and at least one parallel backlight source, the diameter shooting device is used for shooting the bar to measure the diameter of the bar, the diameter of the bar can be measured while the defect detection is not influenced, and the measuring efficiency is improved; the light emitting directions of the parallel backlight sources are consistent, the phenomenon of blunting at the edge of the bar is avoided to a great extent, and the detection precision is improved.

6. The utility model provides an among the bar defect detection device based on vision, the drive wheel is arranged in to the bar and on the follow driving wheel, rotates by the drive wheel and drives the bar transmission, plays to assist with the effect of bearing and passive transmission bar from the driving wheel, can make the bar according to the transmission route steady transmission, especially the transmission of longer bar and the transmission of longer distance, and its stationarity is stronger.

7. In the bar defect detection device based on vision, the detection mechanism further comprises an industrial personal computer, the industrial personal computer is in communication connection with the defect shooting device to detect a defect of a first bar image shot by the defect shooting device, the industrial personal computer is in communication connection with the diameter shooting device to detect a defect of a second bar image shot by the diameter shooting device, and the industrial personal computer is in unified communication connection with the defect shooting device and the diameter shooting device, so that the working integrity of the defect shooting device and the diameter shooting device can be improved, and the detection efficiency of the bar defect detection device is improved.

8. The utility model provides an among the bar defect detection device based on vision, reject the mechanism and still include electric jar device and yoke, transmission route opposite side is located to the electric jar device, the one side that the yoke is close to the transmission route is the inclined plane, the yoke deviates from the one side electric jar device end face contaction of transmission route, the yoke is located between two at least drive wheels and highly is less than the drive wheel, if it does not have the defect to detect the bar, the yoke is contactless with the bar, the bar then continues to continue the transmission along the transmission route, can guarantee the normal transmission of assurance bar when not influencing the rejection of substandard product.

9. The utility model provides an among the bar defect detection device based on vision, electric cylinder device and industrial computer communication connection, when the rejection signal that the industrial computer sent is received to electric cylinder device, the drive yoke is with bar jack-up, so that the bar rolls to the substandard product basket along the yoke, this kind of placing mode is convenient for be detected the collection of the bar that has the defect, roll to the substandard product basket when leaving the yoke at the bar automatically, need not extra operation, the substandard product rejection time has been saved, the substandard product rejection efficiency has been accelerated. In addition, carry out unified communication connection by the industrial computer to defect shooting device, diameter shooting device and electric cylinder device, link up the detection and the rejection of bar, can in time reject when detecting that the bar has the defect, promoted the cooperation between each mechanism, improve this bar defect detecting device's detection efficiency.

10. The utility model provides an among the bar defect detecting device based on vision, feeding mechanism still includes motor device, jackshaft and a plurality of belt pulley, motor device passes through shaft coupling and intermediate shaft connection, a belt pulley key-type connection of jackshaft and belt pulley, the drive wheel passes through another belt pulley key-type connection of bearing and belt pulley, motor device drive jackshaft rotates and the jackshaft passes through the belt pulley and drives the drive wheel rotation, rotate by motor device drive jackshaft, the jackshaft passes through the belt pulley and drives the drive wheel rotation, can keep drive wheel pivoted synchronism, further improve the stationarity of bar transmission.

[ description of the drawings ]

Fig. 1 is a schematic structural diagram of a bar defect detecting apparatus based on vision according to a first embodiment of the present invention.

Fig. 2 is a schematic structural diagram of a bar defect detecting device based on vision according to a first embodiment of the present invention.

Fig. 3 is a schematic structural diagram of a bar defect detecting device based on vision according to a first embodiment of the present invention.

Fig. 4 is a schematic structural diagram of a bar defect detecting apparatus based on vision according to a first embodiment of the present invention.

The attached drawings indicate the following:

10. a bar defect detection device based on vision; 11. a feeding mechanism; 12. a detection mechanism; 13. a rejection mechanism; 14. a bar stock;

111. a driving wheel; 112. an intermediate shaft; 113. a belt pulley; 114. a motor device; 121. a defect shooting device; 122. a strip light source; 123. a diameter photographing device; 124. a parallel backlight source; 125. an industrial personal computer; 131. a defective basket; 132. an electric cylinder device; 133. a yoke;

[ detailed description ] embodiments

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and the embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

Referring to fig. 1, 2 and 4, a first embodiment of the present invention provides a bar defect detecting apparatus 10 based on vision for detecting defects of a bar. The device comprises a feeding mechanism 11, a detection mechanism 12 and a rejection mechanism 13; the feeding mechanism 11 is divided into a feeding section A and a discharging section B; the detection mechanism 12 is arranged at the feeding section A, and the rejection mechanism 13 is arranged at the discharging section B; the rejecting mechanism comprises a defective basket 131; the feeding mechanism 11 comprises at least two driving wheels 111, the at least two driving wheels 11 are sequentially arranged on a feeding section A and a discharging section B to form a transmission path, a defective basket 131 is arranged on one side of the transmission path, the bar 14 is transmitted from the feeding section A to the discharging section B along the transmission path through the at least two driving wheels 111, the detection mechanism 12 detects defects of the bar 14 while the bar 14 is transmitted, and when the detection mechanism 12 detects that the bar 14 has defects, the rejection mechanism 13 transfers the bar 14 to the defective basket 131.

It can be understood that the feeding mechanism 11 is butted with a production line of the bar 14, the bar 14 directly enters the feeding mechanism 11 after being produced, the defect detection is carried out through the detection mechanism 12, and if the defect of the bar 14 is detected, the bar 14 is transferred to the defective basket 131 for removal through the removal mechanism 13. Because the detection mechanism 12 is arranged at the feeding section a, and the rejecting mechanism 13 is arranged at the discharging section B, the bar 14 passes through the detection mechanism 12 when being transported on the feeding mechanism 11, at this time, the detection mechanism 12 detects defects of the bar 14, when the detection mechanism 12 detects that the bar 14 has defects, the bar 14 passes through the detection mechanism 12 and then passes through the rejecting mechanism 13, and the rejecting mechanism 13 transfers the bar 14 to the defective basket 131 for rejecting.

Alternatively, the defective basket 131 may be square, rectangular or elliptical in shape, as long as the defective basket 131 can accommodate the billet 14, and the shape of the defective basket 131 is not particularly limited.

Alternatively, the driving wheels 111 can drive the bar 14 to transmit through self-rotation, that is, each driving wheel 111 rotates independently. Of course, the driving wheel 111 can be driven by the motor to rotate simultaneously, as long as the driving wheel 111 can be rotated to drive the bar 14 to move according to the conveying direction. For example, in the present embodiment, the driving wheel 111 is connected to a motor for rotation.

Specifically, the driving wheel 111 may be a U-shaped rubber roll shaft, and of course, the driving wheel 111 may also be other rollers as long as it is sufficient to bear the bar 14 and drive the bar 14 to transmit.

The automatic bar defect detection device can effectively solve the problems that the automation degree of the existing bar defect detection device is not enough, and the feeding and discharging cannot be automatically carried out, so that the defective product rejection automation is realized, the detection efficiency is improved, the overall aesthetic feeling of bars is guaranteed, the physical performance of the bars is improved, and the workload of detection personnel is reduced. In addition, the bar stock is conveyed and detected at the same time, the conveying of the bar stock is not interrupted, and the detection efficiency of the bar stock defect detection device can be further improved. In addition, the driving wheels are arranged in sequence, so that a small amount of driving wheels can be used for transmitting the bars, the complexity of the feeding mechanism is simplified, the space can be saved, the space utilization rate is improved, and the heat dissipation efficiency is increased. In addition, the defective product basket is used for uniformly collecting the bars detected as defective products, and the subsequent processing of the bars is facilitated.

In one embodiment, the feeding mechanism 11 further includes at least one driven wheel (not shown); at least one driven wheel is arranged between every two driving wheels 111. The driven wheel can be a U-shaped rubber roll shaft like the driving wheel 111, and the driving wheel 111 can be other rollers as long as the bearing of the bar stock 14 and the passive transmission of the bar stock 14 are met.

In the above embodiment, the feeding mechanism 11 further includes at least one driven wheel, and at least one driven wheel is disposed between every two driving wheels 111, wherein the bar 14 is disposed on the driving wheels 111 and the driven wheels, the driving wheels 111 rotate to drive the bar to be transported, and the driven wheels play a role in supporting and passively transporting the bar, so that the bar 14 can be stably transported according to a transportation route, especially, a long bar and a long distance are transported, and the stability is stronger.

Specifically, the driven wheel may be a U-shaped rubber roll shaft like the driving wheel 111, and of course, the driving wheel 111 may be other rollers as long as the requirement of bearing the bar 14 and passively conveying the bar 14 is met.

With continued reference to fig. 2, as an embodiment, the feeding mechanism 11 further includes an intermediate shaft 112, a plurality of pulleys 113, and a motor device 114; the intermediate shaft 112 is connected with a belt wheel key of the belt wheel 113; the driving wheel 111 is connected with the other belt wheel key of the belt wheel 113 through a bearing; the motor device 114 is connected with the intermediate shaft 112 through a coupler, the motor device 114 drives the intermediate shaft 112 to rotate, and the intermediate shaft 112 drives the driving wheel 111 to rotate through the belt pulley 113 so as to form a transmission path for transmitting the bar stock 14.

Specifically, the pulley 113 includes two pulleys vertically distributed and a belt, and the pulley 113 performs transmission in a half-crossed transmission manner.

It will be understood that the speed of travel of the bar 14 is determined by the speed of rotation of the motor means 114, which can be adjusted according to the actual requirements and is not limited thereto.

By implementing the embodiment, the motor device 114 drives the intermediate shaft 112 to rotate, and the intermediate shaft 112 drives the driving wheel 111 to rotate through the belt pulley 113, so that the synchronism of the rotation of the driving wheel 111 can be maintained, and the smoothness of the transmission of the bar stock 14 can be further improved.

Referring to fig. 3, the detecting mechanism 12 includes at least three defect cameras 121 and at least six strip light sources 122; the defect photographing device 121 surrounds the transmission route in a radial space plane in 360 degrees; a defect camera 121 and two strip light sources 122 are combined, and the two strip light sources 122 are oppositely arranged at two sides of the defect camera 121.

Specifically, the defect capturing device 121 may be composed of an industrial camera and a general lens, or may be other devices, as long as the defect detection is not affected by the first bar image captured by the bar 14.

It can be understood that at least three defect shooting devices 121 are used for shooting the bar 14 to detect the defect of the bar, the defect shooting devices 121 surround the bar 14 in a 360-degree manner on the radial spatial plane of the transmission route, 360-degree overall shooting of the bar 14 can be guaranteed, missing shooting is avoided, and compared with the detection of a single camera, the detection mode of the bar 14 does not need spiral rolling transmission, the detection speed is greatly improved, and the detection stability is improved; two bar light sources are arranged on two sides of the defect shooting device relatively, so that illumination when the defect shooting device shoots the bar can be enhanced, and a good shooting environment is provided.

Specifically, the bar light source 122 is perpendicular to the transmission line, so that a low-angle light source is formed, shadow is prevented from being generated, the shooting of the defect shooting device 121 is not affected, the uniform illumination of the bar can be ensured, and the shooting of the defect detection device is facilitated.

Specifically, the detection mechanism 12 includes a three-defect imaging device 121; the adjacent defect cameras 121 are spaced apart by 120 ° and are offset in the axial direction of the transport path.

It is understood that the strip light sources 122 are grouped into two sets, and are oppositely disposed at two sides of the defect capturing device 121.

It can be understood that because the section of bar 14 is the cambered surface and has very high reflection phenomenon, can have the uneven phenomenon of shadow and illumination in the shooting process, consequently, above-mentioned defect shooting device 121's the mode of placing can 360 comprehensive shoot bar 14, avoids taking a picture neglectedly, can prevent again that each defect shooting device 121 from intervening each other and leading to influencing the formation of image, can improve detection efficiency.

In one embodiment, the detection mechanism 12 further comprises at least one diameter camera 123 and at least one parallel backlight 124; the parallel backlight 124 and the diameter shooting device 123 are oppositely arranged at two sides of the transmission line.

Specifically, the diameter shooting device 123 may be composed of an industrial camera and a telecentric lens, and compared with a common lens, the telecentric lens is adopted to reduce the imaging distortion degree, improve the image resolution, reduce the imaging distortion degree and reduce the perspective error, thereby greatly improving the diameter measurement precision.

It can be understood that the diameter shooting device 123 is used for shooting the bar 14 to measure the diameter of the bar, and can measure the diameter of the bar 14 without affecting the defect detection, thereby improving the detection efficiency; the light emitting directions of the parallel backlight sources 124 are consistent, so that the phenomenon of blunting at the edge of the bar 14 is avoided to a great extent, and the detection precision is improved.

With continued reference to fig. 3, as an embodiment, the detection mechanism 12 further includes an industrial personal computer 125; the industrial personal computer 125 is in communication connection with the defect shooting device 121 to detect the first bar image shot by the defect shooting device 121; and the industrial personal computer 125 is in communication connection with the diameter shooting device 123 so as to measure the diameter of the second bar stock image shot by the diameter shooting device 123.

It can be understood that the industrial personal computer 125 is in unified communication connection with the defect shooting device 121 and the diameter shooting device 123, so that the working integrity of the defect shooting device 121 and the diameter shooting device 123 can be improved, and the detection efficiency of the bar defect detection device 10 can be improved.

Referring to fig. 4, the removing mechanism 13 further includes an electric cylinder device 132 and a yoke 133; the electric cylinder device 132 is provided on the opposite side of the transfer route; one surface of the fork arm 133 close to the transmission line is an inclined surface, and one surface of the fork arm 133 departing from the transmission line is in end surface contact with the electric cylinder device 132; the fork arm 133 is disposed between at least two of the driving wheels 111 and has a height lower than the driving wheels 111.

It can be understood that if the detection mechanism 12 detects that the bar 14 has no defect, the fork arm 133 does not contact the bar 14, and the bar 14 continues to be transported along the transportation route, so that normal transportation of the bar can be ensured while defective product removal is not affected.

Continuing with FIG. 4, as an embodiment, the electric cylinder device 132 is communicatively coupled to the industrial personal computer 125; when the electric cylinder device 132 receives the rejection signal sent by the industrial personal computer 125, the fork arm 133 is driven to jack up the bar 14, so that the bar 14 rolls down to the defective basket along the fork arm 133.

It can be understood that the electric cylinder device 132 is in communication connection with the industrial personal computer 125, when the electric cylinder device 132 receives a rejection signal sent by the industrial personal computer 125, the fork arm 133 is driven to jack up the bar 14, so that the bar 14 rolls down to the defective basket 131 along the fork arm 133, the bar 14 with defects is conveniently detected and collected by the placing mode, the bar 14 automatically drops to the defective basket 131 when rolling off the fork arm 133, no additional operation is needed, the defective rejection time is saved, and the defective rejection efficiency is accelerated. In addition, carry out unified communication connection by industrial computer 125 to defect shooting device 121, diameter shooting device 123 and electric cylinder device 132, link up the detection and the rejection of bar 14, can in time reject when detecting that bar 14 has the defect, promoted the cooperation between each mechanism, improve this bar defect detection device's detection efficiency.

In the embodiments provided herein, it should be understood that "B corresponding to a" means that B is associated with a, from which B can be determined. It should also be understood, however, that determining B from a does not mean determining B from a alone, but may also be determined from a and/or other information.

It should be appreciated that reference throughout this specification to "one embodiment" or "an embodiment" means that a particular feature, structure or characteristic described in connection with the embodiment is included in at least one embodiment of the present invention. Thus, the appearances of the phrases "in one embodiment" or "in an embodiment" in various places throughout this specification are not necessarily all referring to the same embodiment. Furthermore, the particular features, structures, or characteristics may be combined in any suitable manner in one or more embodiments. Those skilled in the art should also appreciate that the embodiments described in this specification are exemplary and alternative embodiments, and that the acts and modules illustrated are not required to practice the invention.

In the various embodiments of the present invention, it should be understood that the sequence numbers of the above-mentioned processes do not mean the execution sequence necessarily in order, and the execution sequence of each process should be determined by its function and internal logic, and should not constitute any limitation to the implementation process of the embodiments of the present invention.

The flowchart and block diagrams in the figures of the present application illustrate the architecture, functionality, and operation of possible implementations of systems, methods and computer program products according to various embodiments of the present application. In this regard, each block in the flowchart or block diagrams may represent a module, segment, or portion of code, which comprises one or more executable instructions for implementing the specified logical function(s). It should also be noted that, in some alternative implementations, the functions noted in the block may occur out of the order noted in the figures. For example, two blocks shown in succession may, in fact, be executed substantially concurrently, or the blocks may sometimes be executed in the reverse order, depending upon the functionality involved. It will be understood that each block of the block diagrams and/or flowchart illustration, and combinations of blocks in the block diagrams and/or flowchart illustration, can be implemented by special purpose hardware-based systems which perform the specified functions or acts, or combinations of special purpose hardware and computer instructions.

Compared with the prior art, the utility model provides a bar defect detecting device based on vision has following beneficial effect:

1. the utility model provides a bar defect detection device based on vision, in bar defect detection technical field, a carry out the defect detection to the bar, it includes feeding mechanism, detection mechanism and rejection mechanism, feeding mechanism divide into feed zone and ejection of compact section, detection mechanism locates the feed zone, rejection mechanism locates ejection of compact section, rejection mechanism includes the substandard product basket, feeding mechanism includes two at least drive wheels, the drive wheel sets gradually in feed zone and ejection of compact section in order to constitute the transmission route, transmission route one side is located to the substandard product basket, the bar passes through the drive wheel and follows feed zone to ejection of compact section transmission along the transmission route, in the transmission bar, detection mechanism carries out the defect detection to the bar, when detecting the bar and having the defect, rejection mechanism will shift to the substandard product basket. The automatic feeding mechanism comprises a feeding mechanism body, a bar material feeding mechanism, a bar material detecting mechanism, a rejecting mechanism, a defective product basket, a defective product discharging mechanism and a defective product discharging mechanism. In addition, the bar stock is conveyed and detected at the same time, the conveying of the bar stock is not interrupted, and the detection efficiency of the bar stock defect detection device can be further improved. In addition, the driving wheels are arranged in sequence, so that a small amount of driving wheels can be used for transmitting the bars, the complexity of the feeding mechanism is simplified, the space can be saved, the space utilization rate is improved, and the heat dissipation efficiency is increased. In addition, the defective product basket is used for uniformly collecting the bars detected as defective products, and the subsequent processing of the bars is facilitated.

2. The utility model provides an among the bar defect detection device based on vision, detection mechanism includes three defect shooting devices of at least one and six at least strip light sources, wherein, three defect shooting devices of at least one are used for shooing the defect in order to detect the bar to the bar, the defect shooting device is 360 degrees encircles in the radial space plane of transmission route, can guarantee 360 degrees and shoot the bar comprehensively, avoid the missed shooting, and this kind of detection mode is relative to the detection of single camera, the bar need not spiral roll transmission, greatly improved detection speed, the stability of detection has been improved; two bar light sources are arranged on two sides of the defect shooting device relatively, so that illumination when the defect shooting device shoots the bar can be enhanced, and a good shooting environment is provided.

3. The utility model provides an among the bar defect detection device based on vision, bar light source is the vertical state with transmission route, forms the low angle light source, and the illumination that can guarantee the bar is even, is favorable to defect detection device's shooting.

4. The utility model provides an among the bar defect detection device based on vision, detection mechanism includes that three defect shoots the device, and adjacent defect shoots device interval 120 to and stagger at the axial interval of transmission route and place, this kind of placing mode can 360 shoot the bar comprehensively, avoids leaking and takes, can prevent again that each defect from shooting mutual interference between the device and leading to influencing the formation of image, can improve detection efficiency.

5. In the bar defect detecting device based on vision provided by the utility model, the detecting mechanism further comprises at least one diameter shooting device and at least one parallel backlight source, the diameter shooting device is used for shooting the bar to measure the diameter of the bar, the diameter of the bar can be measured while the defect detection is not influenced, and the measuring efficiency is improved; the light emitting directions of the parallel backlight sources are consistent, the phenomenon of blunting at the edge of the bar is avoided to a great extent, and the detection precision is improved.

6. The utility model provides an among the bar defect detection device based on vision, the drive wheel is arranged in to the bar and on the follow driving wheel, rotates by the drive wheel and drives the bar transmission, plays to assist with the effect of bearing and passive transmission bar from the driving wheel, can make the bar according to the transmission route steady transmission, especially the transmission of longer bar and the transmission of longer distance, and its stationarity is stronger.

7. In the bar defect detection device based on vision, the detection mechanism further comprises an industrial personal computer, the industrial personal computer is in communication connection with the defect shooting device to detect a defect of a first bar image shot by the defect shooting device, the industrial personal computer is in communication connection with the diameter shooting device to detect a defect of a second bar image shot by the diameter shooting device, and the industrial personal computer is in unified communication connection with the defect shooting device and the diameter shooting device, so that the working integrity of the defect shooting device and the diameter shooting device can be improved, and the detection efficiency of the bar defect detection device is improved.

8. The utility model provides an among the bar defect detection device based on vision, reject the mechanism and still include electric jar device and yoke, transmission route opposite side is located to the electric jar device, the one side that the yoke is close to the transmission route is the inclined plane, the yoke deviates from the one side electric jar device end face contaction of transmission route, the yoke is located between two at least drive wheels and highly is less than the drive wheel, if it does not have the defect to detect the bar, the yoke is contactless with the bar, the bar then continues to continue the transmission along the transmission route, can guarantee the normal transmission of assurance bar when not influencing the rejection of substandard product.

9. The utility model provides an among the bar defect detection device based on vision, electric cylinder device and industrial computer communication connection, when the rejection signal that the industrial computer sent is received to electric cylinder device, the drive yoke is with bar jack-up, so that the bar rolls to the substandard product basket along the yoke, this kind of placing mode is convenient for be detected the collection of the bar that has the defect, roll to the substandard product basket when leaving the yoke at the bar automatically, need not extra operation, the substandard product rejection time has been saved, the substandard product rejection efficiency has been accelerated. In addition, carry out unified communication connection by the industrial computer to defect shooting device, diameter shooting device and electric cylinder device, link up the detection and the rejection of bar, can in time reject when detecting that the bar has the defect, promoted the cooperation between each mechanism, improve this bar defect detecting device's detection efficiency.

10. The utility model provides an among the bar defect detecting device based on vision, feeding mechanism still includes motor device, jackshaft and a plurality of belt pulley, motor device passes through shaft coupling and intermediate shaft connection, a belt pulley key-type connection of jackshaft and belt pulley, the drive wheel passes through another belt pulley key-type connection of bearing and belt pulley, motor device drive jackshaft rotates and the jackshaft passes through the belt pulley and drives the drive wheel rotation, rotate by motor device drive jackshaft, the jackshaft passes through the belt pulley and drives the drive wheel rotation, can keep drive wheel pivoted synchronism, further improve the stationarity of bar transmission.

The rod defect detecting device based on vision disclosed in the embodiment of the present invention is introduced in detail, and the principle and the implementation mode of the present invention are explained by applying specific examples, and the explanation of the above embodiments is only used to help understanding the method and the core idea of the present invention; meanwhile, for the general technical personnel in the field, according to the idea of the present invention, there may be changes in the specific implementation and application range, to sum up, the content of the present specification should not be understood as the limitation of the present invention, any modification made within the principle of the present invention, equivalent replacement and improvement should be included in the protection scope of the present invention.

Claims (10)

1. The utility model provides a bar defect detecting device based on vision for carry out defect detection to the bar, its characterized in that: comprises a feeding mechanism, a detection mechanism and a rejection mechanism; the feeding mechanism is divided into a feeding section and a discharging section; the detection mechanism is arranged at the feeding section, and the rejection mechanism is arranged at the discharging section; the removing mechanism comprises a defective product basket;

the feeding mechanism comprises at least two driving wheels, the at least two driving wheels are sequentially arranged on the feeding section and the discharging section to form a transmission path, the defective product basket is arranged on one side of the transmission path, the bar stock is transmitted from the feeding section to the discharging section along the transmission path through the at least two driving wheels, the detection mechanism detects defects of the bar stock while transmitting the bar stock, and when the detection mechanism detects that the bar stock has defects, the rejection mechanism transfers the bar stock to the defective product basket.

2. A vision-based bar defect inspection apparatus as defined in claim 1, wherein: the detection mechanism comprises at least three defect shooting devices and at least six strip-shaped light sources; the defect shooting device surrounds the transmission route in a radial space plane in 360 degrees; the defect shooting device and the two strip-shaped light sources form a group, and the two strip-shaped light sources are oppositely arranged on two sides of the defect shooting device.

3. A vision-based bar defect inspection apparatus as defined in claim 2, wherein: the bar-shaped light source is vertical to the transmission line.

4. A vision-based bar defect inspection apparatus as defined in claim 3, wherein: the detection mechanism comprises three defect shooting devices; the adjacent defect shooting devices are spaced by 120 degrees and are staggered in the axial direction of the transmission line.

5. A vision-based bar defect inspection apparatus as defined in claim 2, wherein: the detection mechanism further comprises at least one diameter shooting device and at least one parallel backlight source;

the parallel backlight source and the diameter shooting device are oppositely arranged on two sides of the transmission line.

6. A vision-based bar defect detection apparatus as defined in any one of claims 1-5, wherein: the feeding mechanism also comprises at least one driven wheel; at least one driven wheel is arranged between every two driving wheels.

7. A vision-based bar defect inspection apparatus as defined in claim 5, wherein: the detection mechanism also comprises an industrial personal computer; the industrial personal computer is in communication connection with the defect shooting device so as to detect the defect of the first bar image shot by the defect shooting device; and the industrial personal computer is in communication connection with the diameter shooting device so as to measure the diameter of the second bar image shot by the diameter shooting device.

8. A vision-based bar defect inspection apparatus as defined in claim 7, wherein: the rejecting mechanism further comprises an electric cylinder device and a fork arm; the electric cylinder device is arranged on the opposite side of the transmission line; one surface of the fork arm, which is close to the transmission path, is an inclined surface, one surface of the fork arm, which is far away from the transmission path, is in contact with the end surface of the electric cylinder device, and the fork arm is arranged between the at least two transmission wheels and is lower than the transmission wheels in height.

9. A vision-based bar defect inspection apparatus as defined in claim 8, wherein: the electric cylinder device is in communication connection with the industrial personal computer;

and when the electric cylinder device receives a rejection signal sent by the industrial personal computer, the fork arm is driven to jack up the bar so that the bar rolls down to the defective basket along the fork arm.

10. A vision-based bar defect inspection apparatus as defined in claim 1, wherein: the feeding mechanism further comprises a motor device, an intermediate shaft and a plurality of belt pulleys; the motor device is connected with the intermediate shaft through a coupler, the intermediate shaft is in key connection with one belt wheel of the belt pulley, and the driving wheel is in key connection with the other belt wheel of the belt pulley through a bearing;

the motor device drives the intermediate shaft to rotate and the intermediate shaft drives the driving wheel to rotate through the belt pulley.

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