CN219369598U - Visual recognition device for surface defects of stamping part - Google Patents

Abstract

The utility model provides a visual recognition device for surface defects of stamping parts, which comprises a conveyor belt, wherein a shading box is arranged in the middle of the conveyor belt, and the visual recognition device further comprises: the identification part comprises a connecting frame, a plurality of adjustable direction light sources are uniformly distributed on the outer side wall of the connecting frame, a fixed light source is arranged at the bottom end of the connecting frame, the adjustable direction light sources can rotate on the connecting frame, the identification part can move up and down, and the adjustable direction light sources and the fixed light sources are driven to move up and down; the multiple groups of adjustable direction light sources are arranged and can rotate, and the identification part can move up and down, so that the surface of the stamping part can be ensured to collect image data of illumination at different angles for multiple times, and meanwhile, the illumination range of the adjustable direction light sources is adjusted, and the situation that the stamping part cannot be completely illuminated is avoided; the limit component is arranged to ensure that the stamping part is positioned in the middle of the conveyor belt, and the irradiation area of the adjustable direction light source deviating from the identification part is avoided, so that the stamping part can be completely irradiated.

Description

Visual recognition device for surface defects of stamping part

Technical Field

The utility model relates to the technical field, in particular to a visual recognition device for surface defects of stamping parts.

Background

The stamping part applies external force to plates, strips, pipes, sectional materials and the like by using a press machine and a die to cause plastic deformation or separation, so that workpieces with required shapes and sizes are obtained, and due to the influence of various factors, certain defects exist on the surfaces of the stamping part inevitably in the stamping process, so that the stamping part needs to be inspected before leaving a factory, and due to the fact that the manual inspection is not accurate, the inspection mode of the surface defects of the stamping part is gradually changed from manual inspection to machine inspection along with the development of an automation technology, wherein the machine vision identification is a current popular inspection mode, and due to the randomness of the surface defects of the stamping part, a proper illumination mode and an illumination angle are difficult to find, and the contrast ratio of all defect types can be increased;

patent number CN215678146U discloses: the illuminating assembly comprises a plane light source, directional light sources, a plane light source connecting frame and a directional light source connecting frame, wherein the plane light source is fixed on the directional light source connecting frame through the plane light source connecting frame, the directional light sources are fixed on the support through the directional light source connecting frame, the directional light sources are composed of 12 LED (light emitting diode) spot lamps which are uniformly and annularly arranged, every two opposite spot lamps form 30 degrees, the two opposite spot lamps are 1 group and are divided into 6 groups, each spot lamp forms an angle of 30 degrees with the surface of a conveyor belt, the two opposite spot lamps are fixed on the directional light source connecting frame through bolting, the directional light source connecting frame is fixed on the support through bolting, and the directional light sources are lightened in a mode of combining the plane light source and the directional light sources in a time-sharing mode, so that the surfaces of the detected stamping parts are acquired for a plurality of times, and the image data of different angles are illuminated, so that various surface defects and background contrast are enhanced, and the most suitable illumination angles are found;

the above patent document discloses a method of solving the above problems by providing a plurality of sets of directional light sources for irradiation; the directional light source in the above patent can collect the image data of multiple different angle illumination to the upper surface of the detected stamping part, but the angle of the downward illumination of the directional light source in the above patent is fixed, the illumination range is limited and can not be adjusted, the stamping part with larger volume can not be completely illuminated, the stamping part can not be determined to be positioned in the middle of the transmission belt without a limit structure, and the stamping part can deviate from the illumination area, so that the stamping part can not be completely illuminated.

In summary, there is a need for a visual recognition device that avoids surface defects in a stamping part that cannot be fully illuminated to the stamping part.

Disclosure of Invention

Aiming at the defects of the prior art, the utility model provides a visual recognition device for the surface defects of a stamping part, and solves the problems in the background art.

In order to achieve the above purpose, the utility model is realized by the following technical scheme:

the utility model provides a stamping workpiece surface defect visual identification device, includes the conveyer belt, the middle part of conveyer belt is equipped with the light screen case, still includes:

the identification part comprises a connecting frame, a plurality of adjustable direction light sources are uniformly distributed on the outer side wall of the connecting frame, a fixed light source is arranged at the bottom end of the connecting frame, the adjustable direction light sources can rotate on the connecting frame, and the identification part can move up and down and drive a plurality of adjustable direction light sources and the fixed light sources to move up and down;

the limiting assembly comprises two symmetrically arranged limiting plates, and the two limiting plates can move in parallel.

Further, the top of link is equipped with first support frame, the top of first support frame is equipped with the second support frame, the lateral wall of link is equipped with a plurality of fixed plate, adjustable direction light source includes the down lamp, the top inboard of down lamp with the bottom of fixed plate of corresponding position articulates, the top of down lamp with be equipped with the torsional spring between the fixed plate, the torsional spring is under the condition that does not receive any external force messenger the irradiation direction of down lamp is the horizontality, the top outside of down lamp is equipped with the rope, the lateral wall of first support frame is equipped with a plurality of pulley, the rope bypasses corresponding position the pulley.

Further, the top of first support frame is equipped with first screw rod, the bottom of first screw rod is fixed with the top of rope, the upper end of first screw rod passes in proper order the second support frame with the light-proof box, the top of first screw rod is equipped with first hand wheel, the top of second support frame is equipped with the second screw rod, the top of second screw rod is equipped with the second hand wheel, the upper end of second screw rod passes the top of light-proof box, the bottom of first support frame is equipped with industrial camera.

Further, two the outside of limiting plate all is equipped with the pinion rack, the outside of pinion rack is equipped with the fixing base, the spout has been seted up at the middle part of fixing base, the outer end of pinion rack slidable is located in the spout, the inside of fixing base is equipped with the gear, the gear with the pinion rack meshing, the center department of gear is equipped with first transmission shaft.

Further, the right side the lower extreme of first transmission shaft is equipped with first awl tooth, two second awl teeth have been set up to the below symmetry of first awl tooth, first awl tooth with the right side the meshing of second awl tooth, the left side downside meshing of second awl tooth has the third awl tooth, the center department of third awl tooth is fixed with the left side first transmission shaft, two be equipped with the second transmission shaft between the second awl tooth, the bottom of fixing base is equipped with the backup pad, be equipped with in the backup pad and be used for driving the right side first transmission shaft pivoted second motor.

Further, the left and right sides at the rear of light shielding case is equipped with pushing away material platform and first ejection of compact platform respectively, the top of pushing away the material platform is equipped with electronic jar, the right side of electronic jar is equipped with the push pedal, the rear of conveyer belt is equipped with the second ejection of compact platform.

Further, the bottom of conveyer belt is equipped with the chassis, one side of chassis is equipped with the first motor that is used for driving the conveyer belt and removes, the stamping workpiece has been placed on the surface of conveyer belt, be equipped with image processor on the lateral wall of light-proof box.

The utility model provides a visual recognition device for surface defects of a stamping part. Compared with the prior art, the method has the following beneficial effects:

the multiple groups of adjustable direction light sources are arranged and can rotate, and the identification part can move up and down, so that the surface of the stamping part can be ensured to collect image data of illumination at different angles for multiple times, and meanwhile, the illumination range of the adjustable direction light sources is adjusted, and the situation that the stamping part cannot be completely illuminated is avoided; the limit component is arranged to ensure that the stamping part is positioned in the middle of the conveyor belt, and the irradiation area of the adjustable direction light source deviating from the identification part is avoided, so that the stamping part can be completely irradiated.

Drawings

In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 shows a schematic overall structure of the present utility model;

FIG. 2 shows a top view of the overall structure of the present utility model;

FIG. 3 shows a schematic diagram of the structure of the identification part of the present utility model;

FIG. 4 is a schematic view showing the structure of the recognition site of the present utility model when it is located in the light shielding box;

FIG. 5 shows a partial structural front view of the identification portion of the present utility model;

FIG. 6 shows a schematic overall structure of the fixing assembly of the present utility model;

fig. 7 shows a partial structural cross-section of the fixing assembly of the present utility model.

The figure shows: 1. a conveyor belt; 11. a chassis; 12. a first motor; 2. a light shielding box; 3. an identification unit; 31. a connecting frame; 32. a first support frame; 33. a second support frame; 34. a direction-adjustable light source; 341. a down lamp; 342. a rope; 343. a torsion spring; 344. a pulley; 35. fixing a light source; 36. a first screw; 361. a first hand wheel; 37. a second screw; 371. the second hand wheel; 38. a fixing plate; 39. an industrial camera; 4. a limit component; 41. a limiting plate; 42. a toothed plate; 43. a fixing seat; 431. a chute; 432. a support plate; 44. a gear; 45. a first drive shaft; 451. a second motor; 46. a first bevel gear; 47. a second bevel gear; 48. a second drive shaft; 49. a third bevel gear; 5. stamping parts; 6. a first discharge table; 7. a second discharging table; 8. a pushing table; 81. an electric cylinder; 82. a push plate; 9. an image processor.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more clear, the technical solutions in the embodiments of the present utility model are clearly and completely described, and it is obvious that the described embodiments are some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Example 1

In order to solve the technical problem in the background art, a visual recognition device for the surface defects of stamping parts is provided as follows:

referring to fig. 1 to 7, the visual recognition device for surface defects of a stamping part provided by the utility model comprises: conveyer belt 1, conveyer belt 1 are used for conveying stamping workpiece 5, and the middle part of conveyer belt 1 is equipped with light-proof box 2, still includes: the identification part 3, the identification part 3 includes a connecting frame 31, a plurality of adjustable direction light sources 34 are uniformly distributed on the outer side wall of the connecting frame 31, 6 adjustable direction light sources 34 are uniformly and annularly arranged in this embodiment, every 2 opposite adjustable direction light sources 34 are in a group, 3 groups are totally provided, the bottom end of the connecting frame 31 is provided with a fixed light source 35, the top end of the connecting frame 31 is fixedly connected with a first supporting frame 32, the top end of the first supporting frame 32 is fixedly connected with a second supporting frame 33, the outer side wall of the connecting frame 31 is fixedly connected with a plurality of fixed plates 38, the adjustable direction light sources 34 include a down lamp 341, the top inner side of the down lamp 341 is hinged with the bottom end of the fixed plate 38 at the corresponding position, a torsion spring 343 is arranged between the top end of the down lamp 341 and the fixed plates 38, two ends of the torsion spring 343 are respectively fixed with the top end of the down lamp 341 and the side wall of the fixed plate 38, the torsion spring 343 enables the irradiation direction of the down lamp 341 to be in a horizontal state under the condition of not receiving any external force, the outside of the top end of the down lamp 341 is fixedly connected with a rope 342, a torsion spring 343 and the rope 342 limit the position of the adjustable directional light source 34, the adjustable directional light source 34 is prevented from rotating randomly, the outer side wall of the first support frame 32 is provided with a plurality of pulleys 344, the pulleys 344 are rotationally connected with the first support frame 32 through support rods, the pulleys 344 are used for supporting the rope 342, the rope 342 bypasses the pulleys 344 at corresponding positions, a first screw rod 36 is arranged above the first support frame 32, the bottom end of the first screw rod 36 is fixed with the top end of the rope 342, the upper end of the first screw rod 36 sequentially penetrates through the second support frame 33 and the shading box 2, the first screw rod 36 is in threaded connection with the second support frame 33, the first screw rod 36 and the shading box 2 can slide up and down and rotate, the top end of the first screw rod 36 is fixedly connected with a first hand wheel 361, the top end of the second support frame 33 is provided with a second screw rod 37, the top end of the second screw rod 37 is fixedly connected with a second hand wheel 371, the upper end of the second screw rod 37 passes through the top end of the light shielding box 2, the second screw rod 37 is rotationally connected with the top end of the second supporting frame 33 but can not slide up and down, the second screw rod 37 is in threaded connection with the top end of the light shielding box 2, in the technical scheme, the top end of the rope 342 can be pulled to rise by rotation of the first screw rod 36, so that the down lamp 341 rotates anticlockwise, and the irradiation angle of the down lamp 341 can be adjusted to be matched with the stamping part 5; the second screw 37 is rotated to drive the whole recognition part 3 to move upwards, thereby realizing adjustment of the recognition range of the recognition part 3.

Example two

As shown in fig. 1 and 2, on the basis of the above embodiment, the present embodiment further gives the following: the industrial camera 39 is installed to the bottom of first support frame 32, the bottom fixedly connected with chassis 11 of conveyer belt 1, one side of chassis 11 is equipped with the first motor 12 that is used for driving conveyer belt 1 to remove, stamping workpiece 5 has been placed on the surface of conveyer belt 1, install image processor 9 on the lateral wall of light-proof box 2, the left and right sides at the rear of light-proof box 2 is equipped with pushing table 8 and first ejection of compact platform 6 respectively, the electric cylinder 81 is installed on the top of pushing table 8, the right side of electric cylinder 81 is fixed with push pedal 82, the rear of conveyer belt 1 is equipped with second ejection of compact platform 7, in the above-mentioned technical scheme, the industrial camera 39 replaces the people's eye to make measurement and judgement, through digital image taking object conversion image signal, transfer to special image processor 9, image processor 9 carries out various operations to these signals and extracts the characteristic of object, and then control device according to the result of judgement.

Example III

As shown in fig. 1, 6 and 7, on the basis of the above-described embodiment, the present embodiment further gives the following: the limiting assembly 4, the limiting assembly 4 includes two limiting plates 41 that the symmetry set up, the bottom of two limiting plates 41 is located the top of conveyer belt 1 and do not contact with the top of conveyer belt 1, the equal fixedly connected with pinion rack 42 in the outside of two limiting plates 41, the outside of pinion rack 42 is equipped with fixing base 43, spout 431 has been seted up at the middle part of fixing base 43, the outer end slidable of pinion rack 42 is located spout 431, fixing base 43's inside is equipped with gear 44, gear 44 meshes with pinion rack 42, the center department fixedly connected with first transmission shaft 45 of gear 44, the lower extreme fixedly connected with first awl tooth 46 of right side first transmission shaft 45, the below symmetry of first awl tooth 46 has set up two second awl teeth 47, first awl tooth 46 meshes with right second awl tooth 47, the left downside meshing of left second awl tooth 47 has third awl tooth 49, first awl tooth 46 is opposite to the direction of rotation of third awl tooth 49, the center department and left side first transmission shaft 45 are fixed with left side first awl tooth 47, fixedly connected with first motor 45 in the second back of the side, the fixed connection second motor 451 is equipped with the second motor 45 in the opposite direction, the spacing motor 451 is connected with the second transmission shaft 45 in the right side opposite direction, the realization, the distance between the two opposite right side second motor 45 is connected with the second support plate 45, the second motor 451 is rotatable, the realization is opposite to the second motor 45, the bottom is opposite to the second support plate 45, the second motor is connected with the second transmission shaft 45, the distance is opposite to the second carrier plate 45, can be connected with the second carrier plate 45, can rotate, can be used to the distance to the top, can be adjusted, and can be used to the distance to the motor, can be adjusted, and can be used by the motor, and can the speed by the motor, and can the motor and can the speed, can the speed by the motor and the speed.

The working principle and the using flow of the utility model are as follows:

when the stamping part is identified:

opening the conveyor belt 1, placing the stamping part 5 on the front side of the conveyor belt 1, driving the stamping part 5 to move to the position of the limiting component 4 by the conveyor belt 1, extruding the stamping part 5 to the middle part by the two limiting plates 41, continuing to move backwards until the stamping part 5 enters the light shielding box 2, opening the fixed light source 35, opening one group of adjustable directional light sources 34 each time to irradiate the stamping part 5 until all three groups of adjustable directional light sources 34 are opened once, continuously acquiring images of the stamping part 5 by the industrial camera 39 in the process, converting a digital image capturing target into image signals, transmitting the image signals to the image processor 9, calculating the signals by the image processor 9 to extract the characteristics of the target, controlling the electric cylinder 81 according to the judging result, starting the electric cylinder 81 once after the image processor 9 recognizes that the stamping part 5 is defective, pushing the push plate 82 by the piston rod of the electric cylinder 81 after the stamping part 5 moves out of the light shielding box 2, pushing the stamping part 5 to the first discharging table 6 by the push plate 82, and stopping the electric cylinder 81 if the image processor 9 recognizes that the surface of the stamping part 5 is normal, allowing the conveyor belt 1 to drive the stamping part 5 to the second discharging table 7, namely realizing the recognition of the defect and discharging of the stamping part 5 respectively;

when the distance between the two limiting plates 41 needs to be adjusted:

starting the second motor 451, the output shaft of the second motor 451 drives the right first transmission shaft 45 to rotate, the right first transmission shaft 45 simultaneously drives the right gear 44 and the first bevel gear 46 to rotate, the first bevel gear 46 drives the two second bevel gears 47 to rotate, the left second bevel gear 47 drives the third bevel gear 49 to rotate, the third bevel gear 49 is opposite to the rotation direction of the first bevel gear 46, the third bevel gear 49 drives the left first transmission shaft 45 to rotate, so that the left Fang Chilun is driven to rotate, the gear 44 drives the toothed plate 42 to move in the chute 431, so that the two limiting plates 41 move horizontally, and the second motor 451 can be closed until the distance between the limiting stamping parts 5 is adjusted;

when the angle of the light source of the identification part needs to be adjusted:

the second hand wheel 371 is screwed, the second hand wheel 371 drives the second screw rod 37 to rotate, the second screw rod 37 drives the identification part 3 to vertically move until the identification part is adjusted to a proper position, the second hand wheel 371 is stopped to be screwed, the first hand wheel 361 is screwed, the first hand wheel 361 drives the first screw rod 36 to rotate, the bottom end of the first screw rod 36 drives the top ends of the plurality of ropes 342 to move upwards, the ropes 342 drive the pulleys 344 to rotate, the adjustable light source 34 rotates anticlockwise, the torsion spring 343 is compressed towards the top end of the light source 34, and the screwing of the first hand wheel 361 can be stopped until the identification part is adjusted to a proper position.

It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.

The above embodiments are only for illustrating the technical solution of the present utility model, and are not limiting; although the utility model has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present utility model.

Claims (7)

1. The utility model provides a stamping workpiece surface defect visual identification device, includes conveyer belt (1), the middle part of conveyer belt (1) is equipped with light screen box (2), its characterized in that: further comprises:

the identification part (3), the identification part (3) comprises a connecting frame (31), a plurality of adjustable direction light sources (34) are uniformly distributed on the outer side wall of the connecting frame (31), a fixed light source (35) is arranged at the bottom end of the connecting frame (31), the adjustable direction light sources (34) can rotate on the connecting frame (31), the identification part (3) can move up and down, and the adjustable direction light sources (34) and the fixed light sources (35) are driven to move up and down;

the limiting assembly (4), the limiting assembly (4) comprises two limiting plates (41) which are symmetrically arranged, and the two limiting plates (41) can move in parallel.

2. A visual identification device for surface defects of a stamping part as defined in claim 1, wherein: the utility model discloses a lamp, including link (31) and fixed plate (38), link (31) and fixed plate (38) are fixed on the top, the top of link (31) is equipped with first support frame (32), the top of first support frame (32) is equipped with second support frame (33), the lateral wall of link (31) is equipped with a plurality of fixed plate (38), adjustable to light source (34) include down lamp (341), the top inboard of down lamp (341) is articulated with the bottom of corresponding position fixed plate (38), the top of down lamp (341) with be equipped with torsional spring (343) between fixed plate (38), torsional spring (343) make under the condition that does not receive any external force the irradiation direction of down lamp (341) is the horizontality, the top outside of down lamp (341) is equipped with rope (342), the lateral wall of first support frame (32) is equipped with a plurality of pulley (344), rope (342) bypass corresponding position pulley (344).

3. A visual identification device for surface defects of a stamping part as defined in claim 2, wherein: the top of first support frame (32) is equipped with first screw rod (36), the bottom of first screw rod (36) is fixed with the top of rope (342), the upper end of first screw rod (36) passes in proper order second support frame (33) with light-proof box (2), the top of first screw rod (36) is equipped with first hand wheel (361), the top of second support frame (33) is equipped with second screw rod (37), the top of second screw rod (37) is equipped with second hand wheel (371), the upper end of second screw rod (37) passes the top of light-proof box (2), the bottom of first support frame (32) is equipped with industrial camera (39).

4. A visual identification device for surface defects of a stamping part as defined in claim 1, wherein: two the outside of limiting plate (41) all is equipped with pinion rack (42), the outside of pinion rack (42) is equipped with fixing base (43), spout (431) have been seted up at the middle part of fixing base (43), the outer end slidable of pinion rack (42) is located in spout (431), the inside of fixing base (43) is equipped with gear (44), gear (44) with pinion rack (42) meshing, the center department of gear (44) is equipped with first transmission shaft (45).

5. A visual identification device for surface defects of a stamping part as defined in claim 4, wherein: the right side the lower extreme of first transmission shaft (45) is equipped with first awl tooth (46), two second awl teeth (47) have been laid to the below symmetry of first awl tooth (46), first awl tooth (46) right side second awl tooth (47) meshing, the left side downside meshing of second awl tooth (47) has third awl tooth (49), the center department of third awl tooth (49) is fixed with left side first transmission shaft (45), two be equipped with second transmission shaft (48) between second awl tooth (47), the bottom of fixing base (43) is equipped with backup pad (432), be equipped with on backup pad (432) and be used for driving right side first transmission shaft (45) pivoted second motor (451).

6. A visual identification device for surface defects of a stamping part as defined in claim 1, wherein: the left and right sides at the rear of light-shielding case (2) is equipped with pushing away material platform (8) and first ejection of compact platform (6) respectively, the top of pushing away material platform (8) is equipped with electronic jar (81), the right side of electronic jar (81) is equipped with push pedal (82), the rear of conveyer belt (1) is equipped with second ejection of compact platform (7).

7. A visual identification device for surface defects of a stamping part as defined in claim 1, wherein: the bottom of conveyer belt (1) is equipped with chassis (11), one side of chassis (11) is equipped with first motor (12) that are used for driving conveyer belt (1) and remove, stamping workpiece (5) have been placed on the surface of conveyer belt (1), be equipped with image processor (9) on the lateral wall of light-proof box (2).