Metal product welding seam detecting and positioning equipment

Abstract

The utility model discloses metal product welding seam detecting and positioning equipment which comprises a rack, a product conveying device, a detecting device and a control device, and the product conveying device and the control device are installed on the rack. A product rotating jig is arranged on the product conveying device, and a positioning mechanism is arranged on the product rotating jig; the detection device comprises detection assemblies, and the detection assemblies and the product rotating jigs are the same in number and are in one-to-one correspondence; the detection assembly comprises a camera and a height adjusting device, the height adjusting device is installed on the rack, the camera is in transmission connection with the power output end of the height adjusting device, and the camera faces the product conveying device; the signal output end of the camera is electrically connected with the signal input end of the control device, and the signal output end of the control device is electrically connected with the signal input end of the product rotating jig. The metal product welding seam detecting and positioning equipment can detect and position the welding seam position of a metal product, and the welding seam position does not need to be manually confirmed.

Description

TECHNICAL FIELD

[0001] The utility model relates to detection equipment, especially a kind of metal product weld detection positioning equipment. BACKGROUND

[0002] In the production and processing of metal products, such as metal cans and other products, joint welding is an important process. After welding, in order to ensure the quality and appearance of the product, polishing treatment of the weld is needed at the subsequent work station. However, in the conveying link of metal products, due to various factors such as collision between them, vibration of the conveying device, etc., the metal products are prone to rotate, which leads to the uncertainty of the weld position.

[0003] There are many weld detection related technologies on the market at present, but these technologies mostly focus on detecting whether the weld has leakage and other quality problems, such as through water pressure test, air pressure test or ultrasonic flaw detection, etc. to judge whether the weld has gaps, holes and other defects. The core purpose is to verify the sealing and structural integrity of the weld, which cannot realize precise positioning of the specific position of the weld.

[0004] And the common polishing device generally does not have the function of identifying the position of the weld on the metal product. When facing the metal product with uncertain weld position, it cannot accurately polish the weld. In actual production, in order to confirm the position of the weld, it is often necessary to manually mark the weld with a marker in advance, and then use a color sensor to identify the mark in the subsequent process. This method not only increases the manual operation process, is time-consuming and laborious, but also is prone to errors. At the same time, after marking, the color left by the marker needs to be removed in the subsequent process, further increasing the complexity of the production process and reducing the overall production efficiency. SUMMARY

[0005] The technical problem to be solved by the utility model is to provide a metal product weld detection positioning equipment, which can detect and position the weld position of the metal product without manual confirmation of the weld position.

[0006] In order to solve the above technical problems, the technical scheme adopted is as follows:

[0007] A metal product weld joint detection positioning device, comprising a rack, a product conveying device and a control device, the product conveying device and the control device are respectively installed on the rack; characterized in that: at least one product rotating jig is arranged on the product conveying device, and a positioning mechanism is arranged on the product rotating jig; the detection positioning device further comprises a detection device, the detection device comprises at least one detection assembly, the number of detection assemblies is the same as that of the product rotating jigs and corresponds one by one; the detection assembly comprises a camera and a height adjusting device capable of adjusting the height of the camera, the height adjusting device is installed on the rack, the camera is in transmission connection with the power output end of the height adjusting device, and the camera faces the product conveying device; the signal output end of the camera is electrically connected with the signal input end of the control device, and the signal output end of the control device is electrically connected with the signal input end of the product rotating jig.

[0008] In the above-mentioned metal product weld joint detection positioning device, before detection, the position of the camera is adjusted by the height adjusting device according to the height position of the weld joint on the metal product to be detected, so that the camera can be aligned with the corresponding position of the metal product. When the metal product is detected and positioned, the metal product is placed on the product rotating jig and fixed by the positioning mechanism; then the product conveying device conveys the product rotating jig, when the metal product is conveyed to the position corresponding to the camera, the camera is aligned with the weld joint position on the metal product, at this time the product conveying device pauses conveying, and the product rotating jig drives the metal product to start rotating, along with the rotation, the camera photographs the metal product along the circumference of the metal product; when the camera photographs the weld joint on the metal product, the control device controls the product rotating jig to stop rotating and fixes the metal product at the current position; when the metal product is conveyed to the rear end by the product conveying device, the clamping device of the subsequent process can take away the metal product, so that the orientation of the weld joint of the taken-away metal product is fixed, and the subsequent process can directly process the weld joint position without manually determining the weld joint position and adjusting the metal product.

[0009] The control device can adopt a microprocessor, and the weld joint position can be confirmed by comparing the preset picture with the picture photographed by the camera in the control device, which is a conventional technical means for comparing and controlling the functions of various devices.

[0010] In the preferred scheme, the product rotating jig further comprises a fixing frame, a rotating seat and a rotating driving device, the fixing frame is installed on the product conveying device, the rotating driving device and the positioning mechanism are respectively installed on the fixing frame, the rotating seat is rotatably installed on the upper end of the fixing frame, and the rotating seat is in transmission connection with the power output end of the rotating driving device. When conveying, the metal product is placed on the rotating seat; when detecting, the rotating driving device drives the metal product to rotate.

[0011] In a further preferred embodiment, the fixture comprises an upper seat, a lower seat and a plurality of connecting rods, the upper seat is mounted on the product conveying device, the upper seat is above the lower seat, and the upper seat and the lower seat are fixedly connected by the connecting rods; the rotary driving device is mounted on the upper seat or the lower seat; the rotary seat is rotatably mounted on the upper seat; and the positioning mechanism is mounted on the lower seat. During detection, the positioning mechanism fixes the metal product from below.

[0012] In a further preferred embodiment, the upper seat and the rotary seat are respectively provided with through holes corresponding to the middle positions thereof, the positioning mechanism comprises a cylinder, a rotary joint and a clamp, the cylinder is mounted on the lower seat and below the through hole, one end of the rotary joint is connected with a piston rod of the cylinder, the other end of the rotary joint is connected with the clamp, and the clamp extends from the through hole from bottom to top and is connected with the rotary seat. During detection, the clamp pulls the metal product to make the metal product closely contact with the rotary seat, so that the metal product can rotate or stop rotating with the rotary seat, and the position is more accurate. According to different metal products, a clamp of a matching specification can be used, and for different clamps, the position of the clamp is adjusted by the cylinder, and then the clamp is connected with the rotary seat to make the upper end of the clamp flush with the upper surface of the rotary seat.

[0013] In a further preferred embodiment, the rotary driving device comprises a motor and a gear set arranged in the upper seat, the motor is mounted on the upper seat or the lower seat, an output shaft of the motor extends into the upper seat and is connected with a first gear of the gear set, and a last gear of the gear set is in transmission connection with the rotary seat. The rotary driving device drives the rotary seat to rotate on the upper seat through the gear set. The last gear of the gear set is in transmission connection with the rotary seat in the form that an annular gear meshing with the last gear is arranged on the rotary seat. Specifically, an annular track and a bearing are arranged in the upper seat, the rotary seat is sleeved in the annular track through the bearing, an outer ring of the bearing is connected with an inner wall of the rotary seat, and an inner ring of the bearing is connected with an outer wall of the annular track, and the rotary seat is meshed with the last gear of the gear set through the annular gear.

[0014] In a further preferred embodiment, the number of the product rotary jigs is two, and the product conveying device is provided with a connecting plate in transmission connection with a power output end of the product conveying device, and the upper seats of the two product rotary jigs are fixedly connected with left and right ends of the connecting plate. The left and right directions refer to directions perpendicular to the conveying direction of the product conveying device. The product conveying device can adopt a structure matched with a conventional motor, a driving wheel, a driven wheel and a conveying belt; can adopt a rodless cylinder; or can adopt the same structure as the translation driving mechanism in the patent CN220084700U. The connecting plate is mounted on an advancing section of the conveying belt or a piston block of the rodless cylinder.

[0015] In a further preferred embodiment, the rack is provided with a detection device mounting plate, the detection device mounting plate is above the product conveying device and extends along the conveying direction of the product conveying device, the connecting plate is below the detection device mounting plate, and the left and right ends of the connecting plate are exposed from the detection device mounting plate; the height adjusting device is mounted on the detection device mounting plate. Generally, the two detection assemblies are arranged staggered in front of and behind each other on the detection device mounting plate, so that the two metal products can be detected at different times and do not interfere with each other.

[0016] In a preferred embodiment, the height adjusting device comprises a lifting driving device and a lifting seat, the lifting driving device is mounted on the rack, the lifting seat is in transmission connection with the power output end of the lifting driving device, and the camera is mounted on the lifting seat. When adjusting, the lifting seat is driven by the lifting driving device to drive the camera to lift.

[0017] In a further preferred embodiment, the lifting driving device comprises a screw rod and an adjusting hand wheel, the screw rod is rotatably mounted on the rack and is arranged in an up-down direction, and the adjusting hand wheel is mounted on the end of the screw rod, the lifting seat is provided with a screw hole matched with the screw rod, and the lifting seat is movably arranged on the screw rod through the screw hole. When adjusting, the screw rod is rotated by rotating the adjusting hand wheel, so that the lifting seat can move up and down along the screw rod through the screw hole.

[0018] The metal product weld detection and positioning equipment can detect and position the weld position of the metal product without manual confirmation of the weld position, and is convenient for subsequent process treatment. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 FIG. 1 is a structural schematic view of a metal product weld detection and positioning equipment in an embodiment of the present application;

[0020] Figure 2 FIG. 2 is a structural schematic view of a connecting plate and two product rotary jigs in an embodiment of the present application;

[0021] Figure 3 FIG. 3 is a structural schematic view of a connecting plate and a product rotary jig in an embodiment of the present application;

[0022] Figure 4 FIG. 4 is a structural schematic view of a detection assembly in an embodiment of the present application. DETAILED DESCRIPTION

[0023] The present application will be further described below in combination with the drawings and specific embodiments:

[0024] As Figures 1-4The metal product weld joint detection positioning device shown comprises a rack 1, a product conveying device 2, a detection device 3 and a control device (not shown in the figure), the product conveying device 2, the detection device 3 and the control device are respectively installed on the rack 1; the product conveying device 2 is provided with two product rotating jigs 4, the product rotating jigs 4 are provided with positioning mechanisms 401; the detection device 3 comprises two detection assemblies 301, the detection assemblies 301 correspond to the product rotating jigs 4 one by one; the detection assembly 301 comprises a camera 3011 and a height adjusting device 3012 capable of adjusting the height of the camera 3011, the height adjusting device 3012 is installed on the rack 1, the camera 3011 is in transmission connection with the power output end of the height adjusting device 3012, and the camera 3011 faces the product conveying device 2; the signal output end of the camera 3011 is in electrical connection with the signal input end of the control device, and the signal output end of the control device is in electrical connection with the signal input end of the product rotating jig 4.

[0025] In the above metal product weld joint detection positioning device, before detection, the position of the camera 3011 is adjusted by the height adjusting device 3012 according to the height position of the weld joint on the metal product to be detected, so that the camera 3011 can be aligned with the corresponding position of the metal product. When the metal product is detected and positioned, the metal product is placed on the product rotating jig 4 and fixed by the positioning mechanism 401; then the product conveying device 2 conveys the product rotating jig 4, when the metal product is conveyed to the position corresponding to the camera 3011, the camera 3011 is aligned with the weld joint position on the metal product, at this time the product conveying device 2 pauses conveying, and at the same time the product rotating jig 4 drives the metal product to start rotating, along with the rotation, the camera 3011 photographs the metal product along the circumference of the metal product; when the camera 3011 photographs the weld joint on the metal product, at this time the control device controls the product rotating jig 4 to stop rotating, and fixes the metal product at the current position; when the metal product is conveyed to the rear end by the product conveying device 2, the clamping device of the subsequent process can take away the metal product, so that the orientation of the weld joint of the taken away metal product is fixed, and the subsequent process can directly process the weld joint position without manually determining the weld joint position and adjusting the metal product.

[0026] The control device can adopt a microprocessor, and the control device can confirm the weld joint position by comparing a preset picture with a picture photographed by the camera 3011, and the comparison method and the function of controlling the work of each device are conventional technical means.

[0027] The product rotating jig 4 further comprises a fixing frame 402, a rotating seat 403 and a rotating driving device 404, the fixing frame 402 is installed on the product conveying device 2, the rotating driving device 404 and the positioning mechanism 401 are respectively installed on the fixing frame 402, the rotating seat 403 is rotatably installed on the upper end of the fixing frame 402, and the rotating seat 403 is in transmission connection with the power output end of the rotating driving device 404. During conveying, the metal product is placed on the rotating seat 403; during detection, the rotating driving device 404 drives the metal product to rotate.

[0028] The fixing frame 402 comprises an upper seat body 4021, a lower seat body 4022 and a plurality of connecting rods 4023, the upper seat body 4021 is installed on the product conveying device 2, the upper seat body 4021 is above the lower seat body 4022, and the upper seat body 4021 and the lower seat body 4022 are fixedly connected through the connecting rods 4023; the rotating driving device 404 is installed on the upper seat body 4021; the rotating seat 403 is rotatably installed on the upper seat body 4021; and the positioning mechanism 401 is installed on the lower seat body 4022. During detection, the positioning mechanism 401 fixes the metal product from below.

[0029] The middle positions of the upper seat body 4021 and the rotating seat 403 are respectively provided with through holes 4024 corresponding in position, the positioning mechanism 401 comprises a gas cylinder 4011, a rotary joint 4012 and a clamp (not shown in the figure), the gas cylinder 4011 is installed on the lower seat body 4022 and is below the through hole 4024, one end of the rotary joint 4012 is connected with the piston rod of the gas cylinder 4011, the other end of the rotary joint 4012 is connected with the clamp, and the clamp extends from the through hole 4024 from bottom to top and is connected with the rotating seat 403. During detection, the clamp pulls the metal product, so that the metal product is in close contact with the rotating seat 403, the metal product can rotate or stop rotating with the rotating seat 403, and the position is more accurate. According to different metal products, the clamp of a matching specification can be adapted, for different clamps, the position of the clamp is adjusted through the gas cylinder 4011, and then the clamp is connected with the rotating seat 403, so that the upper end of the clamp is flush with the upper surface of the rotating seat 403.

[0030] The rotary driving device 404 comprises a motor and a gear set arranged in the upper seat body 4021. The motor is mounted on the upper seat body 4021, the output shaft of the motor extends into the upper seat body 4021 and is connected with the first gear of the gear set, and the last gear of the gear set is in transmission connection with the rotary seat 403. The rotary driving device 404 drives the rotary seat 403 to rotate on the upper seat body 4021 through the gear set. The transmission connection between the last gear of the gear set and the rotary seat 403 can be achieved by arranging an annular gear on the rotary seat 403 and engaged with the last gear. Specifically, an annular track and a bearing are arranged in the upper seat body 4021, the rotary seat 403 is sleeved on the annular track through the bearing, the outer ring of the bearing is connected with the inner wall of the rotary seat 403, and the inner ring of the bearing is connected with the outer wall of the annular track, and the rotary seat 403 is engaged with the last gear of the gear set through the annular gear.

[0031] The product conveying device 2 is provided with a connecting plate 201, the connecting plate 201 is in transmission connection with the power output end of the product conveying device 2, and the upper seat bodies 4021 of the two product rotary jigs 4 are fixedly connected with the left and right ends of the connecting plate 201. The above-mentioned left and right directions refer to the directions perpendicular to the conveying direction of the product conveying device 2. The product conveying device 2 adopts the same structure as the translation driving mechanism in the patent CN220084700U.

[0032] The rack 1 is provided with a detection device mounting plate 101, the detection device mounting plate 101 is above the product conveying device 2 and extends along the conveying direction of the product conveying device 2, the connecting plate 201 is below the detection device mounting plate 101, and the left and right ends of the connecting plate 201 are exposed from the detection device mounting plate 101; the height adjusting device 3012 is mounted on the detection device mounting plate 101. The two detection assemblies 301 are arranged in front of and behind each other on the detection device mounting plate 101, so that the two metal products can be detected at different times without interfering with each other.

[0033] The height adjusting device 3012 comprises a lifting driving device 30121 and a lifting seat 30122, the lifting driving device 30121 is mounted on the rack 1, the lifting seat 30122 is in transmission connection with the power output end of the lifting driving device 30121, and the camera 3011 is mounted on the lifting seat 30122. When adjusting, the lifting seat 30122 is driven by the lifting driving device 30121 to drive the camera 3011 to lift.

[0034] The lifting driving device 30121 comprises a screw rod 301211 and an adjusting hand wheel 301212. The screw rod 301211 is rotatably installed on the frame 1 and is arranged in the up-down direction. The adjusting hand wheel 301212 is installed on the end of the screw rod 301211. The lifting seat 30122 is provided with a screw hole matched with the screw rod 301211. The lifting seat 30122 is movably arranged on the screw rod 301211 through the screw hole. During adjustment, the adjusting hand wheel 301212 drives the screw rod 301211 to rotate, so that the lifting seat 30122 can move up and down along the screw rod 301211 through the screw hole.

Claims

1. A metal product weld detection and positioning device, comprising a frame, a product conveying device, and a control device, wherein the product conveying device and the control device are respectively mounted on the frame; characterized in that: The product conveying device is provided with at least one product rotating jig, and the product rotating jig is provided with a positioning mechanism; the detection and positioning equipment also includes a detection device, the detection device includes at least one detection component, and the number of detection components is the same as that of product rotating jigs and corresponds one to one; the detection component includes a camera and a height adjustment device capable of adjusting the height of the camera, the height adjustment device is installed on the frame, the camera is transmission-connected to the power output end of the height adjustment device, and the camera is facing the product conveying device; the signal output end of the camera is electrically connected to the signal input end of the control device, and the signal output end of the control device is electrically connected to the signal input end of the product rotating jig.

2. The metal product weld detection and positioning device according to claim 1, characterized in that: The product rotating jig also includes a fixed frame, a rotating seat and a rotating drive device. The fixed frame is installed on the product conveying device, the rotating drive device and the positioning mechanism are respectively installed on the fixed frame, the rotating seat can be rotatably installed on the upper end of the fixed frame, and the rotating seat is transmission-connected to the power output end of the rotating drive device.

3. The metal product weld detection and positioning device according to claim 2, characterized in that: The fixed frame includes an upper seat body, a lower seat body and multiple connecting rods. The upper seat body is installed on the product conveying device, the upper seat body is above the lower seat body, and the upper seat body and the lower seat body are fixedly connected by connecting rods; the rotary drive device is installed on the upper seat body or the lower seat body; the rotating seat can be rotatably installed on the upper seat body; the positioning mechanism is installed on the lower seat body.

4. The metal product weld detection and positioning device according to claim 3, characterized in that: The middle positions of the upper seat body and the rotating seat are respectively provided with corresponding through holes. The positioning mechanism includes a cylinder, a rotary joint and a clamp. The cylinder is installed on the lower seat body and is located below the through hole. One end of the rotary joint is connected to the piston rod of the cylinder, and the other end of the rotary joint is connected to the clamp. The clamp extends from the through hole from bottom to top and is connected to the rotating seat.

5. The metal product weld detection and positioning device according to claim 3, characterized in that: The rotary drive device includes a motor and a gear set arranged in the upper seat body. The motor is installed on the upper seat body or the lower seat body. The output shaft of the motor extends into the upper seat body and is connected to the first-stage gear of the gear set. The last-stage gear of the gear set is transmission-connected to the rotating seat.

6. The metal product weld detection and positioning device according to claim 3, characterized in that: There are two product rotating jigs, and a connecting plate is provided on the product conveying device. The connecting plate is transmission-connected to the power output end of the product conveying device, and the upper seats of the two product rotating jigs are fixedly connected to the left and right ends of the connecting plate respectively.

7. The metal product weld detection and positioning device according to claim 6, characterized in that: A detection device mounting plate is provided on the frame, the detection device mounting plate is located above the product conveying device and extends along the conveying direction of the product conveying device, the connecting plate is located below the detection device mounting plate, and the left and right ends of the connecting plate are exposed to the detection device mounting plate; the height adjustment device is installed on the detection device mounting plate.

8. The metal product weld detection and positioning device according to claim 1, characterized in that: The height adjustment device includes a lifting drive device and a lifting seat. The lifting drive device is installed on the frame. The lifting seat is transmission-connected to the power output end of the lifting drive device. The camera is installed on the lifting seat.

9. The metal product weld detection and positioning device according to claim 8, characterized in that: The lifting drive device includes a screw and an adjusting handwheel. The screw can be rotatably installed on the frame and is arranged in the up and down directions. The adjusting handwheel is installed at the end of the screw. A screw hole matching the screw is opened on the lifting seat, and the lifting seat can be moved up and down on the screw through the screw hole.

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