CN219943707U - Visual detection sorting system for staggered welding - Google Patents

Abstract

The utility model provides a vision detection letter sorting system is missed in welding, relate to the welding detection equipment technical field that leaks in the welding in the wrong place, the technical scheme who adopts includes the operation panel, the conveyer belt, the pan feeding chute, vision detection device, sorting device, vision detection device includes the lens hood, image acquisition device, sorting device includes the ejection of compact chute, the ejection of compact chute includes the discharge gate, defective products export and push away the arm, the discharge gate is provided with telescoping device, telescoping device's output shaft is provided with the baffle, push away the arm including with baffle parallel extension's sharp module and with the push pedal of the slip table connection of sharp module, the push pedal extends to the bottom surface of ejection of compact chute. The utility model uses the vision detection device to collect the image of the part to realize detection, the detection accuracy is high, the universality of the detection hardware equipment is strong, and the hardware equipment such as the image acquisition device and the like does not need to be replaced when the part or the detection position is replaced; adopt sorting device to realize the automatic sorting of yields and defective products, reduce the cost of labor.

Description

Visual detection sorting system for staggered welding

Technical Field

The utility model relates to the technical field of error welding and missing welding detection equipment, in particular to a vision detection and sorting system for missing welding.

Background

At present, the domestic automobile industry has a plurality of error proofing modes aiming at common nut, stud error welding and welding leakage phenomena of automobile body parts, for example, error proofing is carried out by using a nut conveyor, a proximity switch, a mechanical valve and the like, so that the failure frequency is reduced. However, the problem of low accuracy still exists in the detection in the above mode, hardware equipment needs to be rearranged for different parts and different detection positions, universality is poor, and follow-up confirmation and sorting still need to be performed manually.

Disclosure of Invention

Aiming at the problems of low accuracy and poor hardware universality in the prior art and still needing manual confirmation and sorting, the utility model provides a vision detection and sorting system for the missed welding.

The utility model provides the following technical scheme: the utility model provides a vision inspection letter sorting system is missed in welding, includes the operation panel, still includes:

the conveying belt is arranged on the operation table;

the feeding chute is arranged at the first end of the conveying belt;

the visual detection device comprises a light shield arranged on the conveyor belt and an image acquisition device arranged in the light shield, a detection inlet is formed in one side, facing the feeding chute, of the light shield, and a detection outlet is formed in one side, facing away from the feeding chute, of the light shield;

sorting device, sorting device is including setting up the ejection of compact chute of conveyer belt second end, ejection of compact chute includes the discharge gate, sets up ejection of compact chute lateral wall orientation defective products export and push away the arm of discharge gate one end, the discharge gate is provided with telescoping device, the output shaft of telescoping device is provided with and is used for sealing the baffle of discharge gate, push away the arm include with baffle parallel extension's sharp module and with the push pedal that the slip table of sharp module is connected, the push pedal extends to the bottom surface of ejection of compact chute.

Preferably, the vision detection device further comprises a control system and a part database, wherein the control system is in signal connection with the conveying belt, the image acquisition device, the telescopic device, the linear module and the part database.

Preferably, the control system further comprises an alarm device connected with the control system.

Preferably, both the detection inlet and the detection outlet are provided with a window shade.

Preferably, the feeding port of the discharging chute is hinged with the support of the conveying belt, and the bottom of the discharging chute is also provided with a fixed support frame detachably connected with the operating platform.

Preferably, the push plate is connected with the sliding table of the linear module through a connecting arm, and the extending direction of the connecting arm is perpendicular to the bottom surface of the discharging chute.

Preferably, the discharging chute is further provided with a counting sensor.

Preferably, the linear module is a ball screw linear module.

Preferably, the telescopic device is a cylinder.

The beneficial effects of the utility model are as follows: the visual detection device is used for collecting the images of the parts to realize detection, so that the detection accuracy is high, the universality of detection hardware equipment is high, and the hardware equipment such as an image acquisition device and the like does not need to be replaced when the parts are replaced or the detection positions are detected; adopt sorting device to realize the automatic sorting of yields and defective products, reduce the cost of labor.

Drawings

FIG. 1 is a three-dimensional schematic of an embodiment of the utility model.

Fig. 2 is a side view of one embodiment of the present utility model.

Reference numerals: 10. an operation table; 20. a conveyor belt; 30. a feeding chute; 40. a light shield; 41. a window shade; 51. a discharge chute; 52. a defective product outlet; 53. a telescoping device; 54. a baffle; 55. a linear module; 56. a push plate; 57. Fixing the supporting frame; 58. and a connecting arm.

Description of the embodiments

Embodiments of the present utility model will be described in more detail below with reference to the drawings and reference numerals, so that those skilled in the art can practice the present utility model after studying the specification. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.

The utility model provides a vision detection and sorting system for missed welds, which is shown in fig. 1-2, and comprises an operation table 10, a conveying belt 20, a feeding chute 30, a vision detection device and a sorting device.

The operation table 10 is used for supporting the whole equipment, and further, the operation table 10 is a lifting table to adjust the height of the equipment to be matched with other equipment. The conveyor belt 20 is provided on the console 10 for moving parts. The conveyor belt 20 may be a belt conveyor, and the two ends of the belt conveyor are a first end and a second end, and the first end of the conveyor belt 20 is provided with the feeding chute 30. The feeding chute 30 may be a chute, and the part is processed in the previous process and then slides down to the first end of the conveyor belt 20 through the feeding chute 30, and meanwhile, the feeding chute 30 should correspond to the installation position of the image acquisition device, so that the part can fall into the acquisition range of the image acquisition device.

The visual inspection device comprises a light shield 40 arranged on the conveying belt 20 and an image acquisition device arranged in the light shield 40, wherein one side of the light shield 40, which faces the feeding chute 30, is provided with an inspection inlet, and one side of the light shield 40, which faces away from the feeding chute 30, is provided with an inspection outlet. The light shield 40 can be made into a frame by adopting steel beams, then a mask is covered outside the frame, and a detection inlet and a detection outlet are respectively arranged at two sides. The light shield 40 covers a partial region of the conveyor belt 20 to prevent external light from interfering with the imaging of the part by the image acquisition device; further, the detection inlet and the detection outlet are also provided with a window shade 41. The image acquisition device can adopt an industrial camera and an LED light source. The parts are driven by the conveyor belt 20, enter the light shield 40 from the detection inlet, acquire part images by the image acquisition device, process the part images by using the existing machine vision system and judge whether the phenomenon of miswelding and missing welding exists, and the accuracy rate can reach more than 99%; after the image acquisition is completed, the parts are separated from the light shield 40 from the detection outlet and conveyed to the sorting device.

The sorting device is used for automatically sorting the detected good products and defective products. The sorting device comprises a discharging chute 51 arranged at the second end of the conveying belt 20, the discharging chute 51 inclines downwards to enable parts to slide down under the action of self gravity, the sorting device comprises a bottom plate and side walls arranged on two sides of the bottom plate, the bottom plate and the two side walls form a U-shaped cross section, and two ends of the bottom plate and the two side walls are respectively provided with a feeding port and a discharging port. The discharge gate is provided with telescoping device 53, the output shaft of telescoping device 53 is provided with the baffle 54 that is used for sealing the discharge gate. The telescopic device 53 can adopt an air cylinder, is fixed at the bottom of the discharge hole, and opens or closes the discharge hole through a telescopic control baffle 54 of the output shaft. When detecting that the part is good, the control telescoping device 53 opens the discharge gate, and the good enters the good case from the discharge gate.

The discharging chute 51 further comprises a defective product outlet 52 arranged on the side wall of the discharging chute 51 and facing one end of the discharging hole, and a pushing arm, wherein the pushing arm comprises a linear module 55 extending in parallel with the baffle 54 and a push plate 56 connected with a sliding table of the linear module 55, and the push plate 56 extends to the bottom surface of the discharging chute 51. Specifically, the push plate 56 is connected with the sliding table of the linear module 55 through a connecting arm 58, and the extending direction of the connecting arm 58 is perpendicular to the bottom surface of the discharging chute 51. The linear module 55 is a ball screw linear module. When the part is detected to be defective, the telescopic device 53 is controlled to drive the baffle 54 to seal the discharge hole, the defective is blocked by the baffle 54, the linear module 55 drives the push plate 56 to push the defective to the defective outlet 52, and the defective enters the defective box.

Preferably, the vision inspection device further comprises a control system and a part database, wherein the control system is in signal connection with the conveyor belt 20, the image acquisition device, the telescopic device 53, the linear module 55 and the part database. The control system comprises an upper computer and a lower computer, wherein the upper computer is a common computer or a server with the functions of numerical calculation, logic operation, data storage, input and output and the like, and the lower computer is a programmable logic controller. The part database is a storage medium with a data storage function and stores standard data of various parts after welding. The image acquisition device transmits the acquired part image to the upper computer, the upper computer processes the part image into a digital signal, and the upper computer invokes standard data of the parts with the same model from the part database for comparison, outputs a detection result, and controls the telescopic device 53 and the linear module 55 for sorting.

Preferably, the system also comprises an alarm device connected with the control system, wherein the alarm device can adopt an audible and visual alarm, and an alarm is given when defective products or faults occur.

Preferably, the inlet of the discharge chute 51 is hinged to the support of the conveyor 20, so as to control the inclination of the discharge chute 51. The bottom of the discharging chute 51 is also provided with a fixed supporting frame 57 detachably connected with the operating table 10, so as to support the discharging chute 51.

Preferably, the discharge chute 51 is also provided with a counting sensor. The counting sensor can adopt an infrared sensor, an opposite-emission photoelectric sensor and the like, and counts by utilizing signal changes generated when parts pass. The counting sensor may be arranged near the inlet of the discharge chute 51.

The foregoing is a description of one or more embodiments of the utility model, which are specific and detailed, but are not to be construed as limiting the scope of the utility model. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the utility model, which are all within the scope of the utility model. Accordingly, the scope of protection of the present utility model is to be determined by the appended claims.

Claims (9)

1. The utility model provides a vision inspection letter sorting system is missed in welding, includes operation panel (10), its characterized in that: the device also comprises a conveying belt (20), wherein the conveying belt (20) is arranged on the operation table (10); the feeding chute (30) is arranged at the first end of the conveying belt (20);

the visual detection device comprises a light shield (40) arranged on the conveying belt (20) and an image acquisition device arranged in the light shield (40), wherein a detection inlet is formed in one side, facing the feeding chute (30), of the light shield (40), and a detection outlet is formed in one side, facing away from the feeding chute (30), of the light shield (40); sorting device, sorting device is including setting up discharge chute (51) of conveyer belt (20) second end, discharge chute (51) are in including the discharge gate, set up discharge chute (51) lateral wall orientation defective products export (52) and push away the arm of discharge gate one end, the discharge gate is provided with telescoping device (53), the output shaft of telescoping device (53) is provided with and is used for sealing baffle (54) of discharge gate, push away the arm include with the straight line module (55) of baffle (54) parallel extension and with push pedal (56) that the slip table of straight line module (55) is connected, push pedal (56) extend to the bottom surface of discharge chute (51).

2. The vision inspection and sorting system for misconnection of claim 1, wherein: the visual inspection device further comprises a control system and a part database, wherein the control system is in signal connection with the conveying belt (20), the image acquisition device, the telescopic device (53), the linear module (55) and the part database.

3. The vision inspection and sorting system for misconnection of claim 2, wherein: the system also comprises an alarm device connected with the control system.

4. The vision inspection and sorting system for misconnection of claim 1, wherein: the detection inlet and the detection outlet are both provided with a window shade (41).

5. The vision inspection and sorting system for misconnection of claim 1, wherein: the feeding port of the discharging chute (51) is hinged with the support of the conveying belt (20), and a fixed support frame (57) detachably connected with the operating platform (10) is further arranged at the bottom of the discharging chute (51).

6. The vision inspection and sorting system for misconnection of claim 1, wherein: the push plate (56) is connected with the sliding table of the linear module (55) through a connecting arm (58), and the extending direction of the connecting arm (58) is perpendicular to the bottom surface of the discharging chute (51).

7. The vision inspection and sorting system for misconnection of claim 1, wherein: the discharging chute (51) is also provided with a counting sensor.

8. The vision inspection and sorting system for misconnection of claim 1, wherein: the linear module (55) is a ball screw linear module.

9. The vision inspection and sorting system for misconnection of claim 1, wherein: the telescopic device (53) is an air cylinder.