Visual Inspection Equipment for Glue Deficiency in Multiple Silos

Abstract

The present invention relates to a visual detection device for lack of glue in multiple bins, which includes a machine platform. A rotatable platform is installed on the machine platform, and at least two workpiece positioning frames are provided thereon, and backlights are provided in the workpiece positioning frames. A loading module, a transfer module, an unloading module and a visual detection module are respectively installed on the machine platform and around the rotatable platform. The visual detection module, the loading module, the unloading module and the transfer module are connected through a control module. The transfer module has a Y-direction electric slide table arranged along the Y direction and a first material taking component and a second material taking component arranged along the Z direction. The device of the present invention adopts a rotating platform, and other modules are arranged around the rotating platform, so that the volume of the device can be minimized. Moreover, double material taking components are adopted to realize synchronous loading and unloading, and the detection station and the loading and unloading stations are alternately and seamlessly connected in a double-station operation, without wasting the interval time in the middle, greatly improving the operation efficiency of the device, thereby reducing both the device cost and the detection cost.

Description

Technical Field:

[0001] The present invention relates to the technical field of die-cut composite workpiece detection equipment, and particularly refers to a visual detection equipment for lack of glue in multiple bins. Background Art:

[0002] Currently, the designs of electronic products such as computers, mobile phones, and tablet computers are becoming more and more precise, and the dimensional requirements are getting higher and higher. Therefore, the requirements for various composite die-cut components used inside them are also getting higher and higher. And with the improvement of customer requirements, after the production of such die-cut components, comprehensive inspection and full inspection are required to replace the traditional sampling inspection to detect whether there is lack of glue or deviation of glue layer components, etc. The existing detection equipment generally uses a visual detection device. However, the overall design of the detection equipment is not very reasonable. Although the loading and unloading components, transfer components, etc. in the equipment can replace manual labor to achieve automation to a certain extent, due to the unreasonable layout design of each unit and the unreasonable connection design of each step, it occupies a large space and there is a waste of time. Therefore, there is still room for improvement in the detection efficiency and spatial layout of such detection equipment. Summary of the Invention:

[0003] The purpose of the present invention is to overcome the above deficiencies of the prior art and provide a visual detection equipment for lack of glue in multiple bins, so as to solve the problems of low production efficiency and large occupied space of the existing detection equipment.

[0004] The technical solution adopted by the present invention is: a visual detection equipment for lack of glue in multiple bins, including a machine platform, on which a rotatable platform is installed. The rotatable platform is higher than the machine platform, and at least two workpiece positioning frames are provided thereon, and a backlight is provided inside the workpiece positioning frames; on the machine platform and around the rotatable platform, a loading module, a transfer module, an unloading module, and a visual detection module are respectively installed; wherein,

[0005] The loading module includes a loading slide rail assembly installed on the machine platform along the X direction, a loading bin installed on the loading slide rail assembly and sliding horizontally along it, and a loading bin driving mechanism for driving the loading bin to slide;

[0006] The unloading module includes a set of unloading slide rail assemblies installed on the opposite side of the loading slide rail assembly and parallel to the loading slide rail assembly, an unloading bin installed on the unloading slide rail assembly and sliding horizontally along it, and an unloading bin driving mechanism for driving the unloading bin to slide, and the unloading bin includes a good product unloading bin and a defective product unloading bin arranged side by side along the unloading slide rail assembly;

[0007] The transfer module has a Y-direction electric slide table arranged along the Y direction and a first picking component and a second picking component installed on the Y-direction electric slide table and arranged along the Z direction. Among them, the first picking component transfers the workpiece in the loading bin to the loading and unloading station of the rotatable platform, and the second picking component transfers the workpiece at the loading and unloading station to the unloading bin;

[0008] The visual inspection module includes an adjustable support assembly and a visual inspection device mounted on the adjustable support assembly. The visual inspection device is suspended above the rotatable platform; the visual inspection module is arranged on the opposite side of the transfer module;

[0009] The visual inspection module, the loading module, the unloading module, and the transfer module are connected through a control module;

[0010] After the first workpiece picking component along the Z direction on the transfer module takes out the workpiece from the loading bin, it is driven by the Y-direction electric slide table on it, transferred to the workpiece positioning frame on the rotatable platform and placed down; the rotatable platform rotates to make the workpiece located below the visual inspection module. The visual inspection module, with the assistance of the backlight, inspects the workpiece in the workpiece positioning frame to determine whether there is lack of glue. Then the rotatable platform moves back to the loading and unloading position, and at the same time drives another undetected workpiece to the inspection position. At the same time, the control module sends an instruction to the unloading drive mechanism of the unloading module according to the inspection result, driving one of the unloading bins in the unloading module to reach the specified position, and then the second workpiece picking component of the transfer module takes out the inspected workpiece from the workpiece positioning frame, and is transferred above the unloading bin and placed into the unloading bin under the drive of the Y-direction electric slide table; at the same time, the first workpiece picking component takes out another workpiece from the loading bin and synchronously transfers it above the workpiece positioning frame of the rotatable platform and places it down.

[0011] In the above-mentioned equipment, the transfer module includes a module support, a Y-direction electric slide table mounted on the module support, a connecting support assembly mounted on the Y-direction electric slide table and extending upward above the rotatable platform, a first workpiece picking component and a second workpiece picking component mounted on the connecting support assembly along the Z direction. The first workpiece picking component and the second workpiece picking component include a picking cylinder arranged along the Z direction and a picking suction cup mechanism connected to the output end of the picking cylinder.

[0012] In the above-mentioned equipment, both the loading bin and the unloading bin include a bin bottom plate, an adjusting block, and a limiting upright column. The bin bottom plate is mounted on the slider of the slide rail assembly, the position of the adjusting block on the bin bottom plate is adjustable, and the limiting upright column is arranged on the adjusting block.

[0013] In the above-mentioned equipment, the number of loading bins is two or more, so as to quickly replenish the workpieces to be inspected without stopping the machine; the number of unloading bins is two or four, which is convenient for taking away the inspected workpieces without stopping the machine;

[0014] In the above-mentioned equipment, a movable ejector plate is further arranged above the bin bottom plate of the loading bin. The movable ejector plate is connected to an ejector rod passing through the machine table downward. A strip-shaped hole for the ejector rod to pass through and move horizontally is opened on the machine table, and a Z-direction ejector slide table for driving the bottom end of the ejector rod to move upward is further installed below the machine table.

[0015] In the above-mentioned device, a backlight is provided inside the workpiece positioning frame.

[0016] In the above-mentioned device, the adjustable support assembly of the vision detection module includes a pair of vertical mounting columns, a set of horizontal mounting columns mounted on the vertical mounting columns through adjustable clamping blocks, and a pair of positioning side plates mounted on the horizontal mounting columns and extending upward above the rotatable platform. The vision detection device is installed between the pair of positioning side plates, and an auxiliary positioning block is also connected between the positioning side plates and the vertical mounting columns.

[0017] In the above-mentioned device, the device further includes a machine cover assembly provided on the machine table, and the control module is provided on the machine cover assembly, including a touch display screen and control buttons.

[0018] The device of the present invention adopts a rotating platform, and other modules are arranged around the rotating platform, so that the volume of the device can be minimized. Moreover, a double loading and unloading component is adopted to realize synchronous loading and unloading, and the detection station and the loading and unloading stations are seamlessly connected in a double-station alternating operation, without wasting any intermediate interval time, greatly improving the operation efficiency of the device, thereby reducing both the device cost and the detection cost. Description of the Drawings:

[0019] Figure 1 、 Figure 2 is a schematic diagram of the overall internal structure of the device of the present invention;

[0020] Figure 3 is a partial structural schematic diagram of the loading module in the device of the present invention;

[0021] Figure 4 is a partial structural schematic diagram of the transfer module in the device of the present invention;

[0022] Figure 5 is a structural schematic diagram of the unloading module in the device of the present invention;

[0023] Figure 6 is a schematic diagram of the overall external structure of the device of the present invention. Detailed Description of the Invention:

[0024] As Figures 1-6 shown, the technical solution adopted by the present invention is: a multi-bin glue shortage vision detection device, including a machine table 1, on which a rotatable platform 2 is installed. The rotatable platform 2 is higher than the machine table 1, and at least two workpiece positioning frames 21 are provided thereon, and a backlight (omitted in the figure) is provided inside the workpiece positioning frame 21; on the machine table 1 and around the rotatable platform 2, a loading module 3, a transfer module 5, an unloading module 4 and a vision detection module 6 are respectively installed; wherein,

[0025] The feeding module 3 includes a feeding slide rail assembly 31 installed on the machine table 1 along the X direction, a feeding bin 32 installed on the feeding slide rail assembly 31 and sliding horizontally along it, and a feeding bin driving mechanism 33 for driving the feeding bin 32 to slide. In this embodiment, the feeding bin driving mechanism 33 is a cylinder, and a servo motor driving mechanism, a linear module, etc. can also be used instead.

[0026] The discharging module 4 includes a set of discharging slide rail assemblies 41 installed on the opposite side of the feeding slide rail assembly 31 (the other side of the rotatable platform 2) and parallel to the feeding slide rail assembly 31, a discharging bin 42 installed on the discharging slide rail assemblies 41 and sliding horizontally along them, and a discharging bin driving mechanism 43 for driving the discharging bin to slide. And the discharging bin 42 includes a good product discharging bin 421 and a defective product discharging bin 422 arranged side by side along the discharging slide rail assemblies 41.

[0027] The transfer module 5 has a Y-direction electric slide table 51 arranged along the Y direction, and a first picking component 52 and a second picking component 53 installed on the Y-direction electric slide table 51 and arranged along the Z direction. Among them, the first picking component 52 transfers the workpiece in the feeding bin to the loading and unloading station of the rotatable platform 2, and the second picking component 53 transfers the workpiece at the loading and unloading station to the discharging bin.

[0028] The vision inspection module 6 includes an adjustable bracket assembly 61 and a vision inspection device 62 installed on the adjustable bracket assembly 61. The vision inspection device 62 is suspended above the rotatable platform 2. The vision inspection module 6 is arranged on the opposite side of the transfer module 5.

[0029] The vision inspection module 6, the feeding module 3, the discharging module 4, and the transfer module 5 are connected through the control module 7.

[0030] After the first workpiece picking component 52 along the Z direction on the transfer module 5 picks up the workpiece from the loading bin 32, it is driven by the Y-direction electric slide table 51 of the transfer module 5 and transferred to and placed on the workpiece positioning frame 21 on the rotatable platform 2; the rotatable platform 2 rotates to make the workpiece located below the vision inspection module 6, and the vision inspection module 6, assisted by the backlight, inspects the workpiece in the workpiece positioning frame 21 to determine whether there is lack of glue. After the inspection is completed, the rotatable platform 2 moves back to the loading and unloading position, and at the same time drives another uninspected workpiece to the inspection position. At the same time, the control module 7 sends an instruction to the blanking drive mechanism 43 of the blanking module 4 according to the inspection result, driving one of the blanking bins 42 in the blanking module 4 to the designated position. If the inspection result is lack of glue, it drives the defective product blanking bin 422 to the blanking position. If the inspection result is no lack of glue, it drives the non-defective product blanking bin 421 to the designated position; then the second workpiece picking component 53 of the transfer module 5 picks up the inspected workpiece from the workpiece positioning frame 21, and is transferred above the blanking bin 4 and placed in the blanking bin 4 under the drive of the Y-direction electric slide table 51; at the same time, the first workpiece picking component 42 picks up another workpiece from the loading bin 32 and synchronously transfers it above the workpiece positioning frame 21 of the rotatable platform 2 and places it down; and so on, repeating the cycle operation.

[0031] In the above equipment, the transfer module 5 includes a module support 50, a Y-direction electric slide table 51 installed on the module support 50, a connecting bracket assembly 54 installed on the Y-direction electric slide table 51 and extending above the rotatable platform 2, a first workpiece picking component 52 and a second workpiece picking component 53 installed along the Z direction on the connecting bracket assembly 54. The first workpiece picking component 52 and the second workpiece picking component 53 include a picking cylinder 521 arranged along the Z direction and a picking suction cup mechanism 522 connected to the output end of the picking cylinder 521; the picking suction cup mechanism 522 can select a suitable size or shape according to the size of the workpiece; in this embodiment, a cuboid structure with a larger surface area is adopted, and the vacuum adsorption method is used for suction. Of course, other methods such as grasping can also be used according to needs; to ensure the picking stability, a longitudinal guiding slider mechanism 523 is also connected between the output end of the picking cylinder 521 and the picking suction cup mechanism 522.

[0032] In the above equipment, the loading bin 32 and the blanking bin 42 both include a bin bottom plate 321, an adjusting block 322, and a limiting upright column 323. The bin bottom plate 321 is installed on the slider of the slide rail assembly, the position of the adjusting block 322 on the bin bottom plate 321 is adjustable, and the limiting upright column 323 is arranged on the adjusting block 322. Therefore, the space size of the loading bin 32 can be adjusted to suit the positioning and stacking of workpieces of different sizes.

[0033] In the above-mentioned device, the number of the feeding bins 32 is two or more, so as to quickly replenish the workpieces to be detected without stopping the machine; the number of the discharging bins 42 is two or four, which is convenient for taking away the detected workpieces without stopping the machine; in this embodiment, a plurality of feeding bins share a bin bottom plate 321, and similarly, a plurality of discharging bins share a bin bottom plate.

[0034] In the above-mentioned device, a movable ejector plate 324 is further provided above the bin bottom plate 321 of the feeding bin 32. The movable ejector plate 324 is connected to an ejector rod 325 that passes downward through the machine table 1. A strip-shaped hole 101 for the ejector rod 325 to pass through and move horizontally is formed in the machine table 1, and a Z-direction ejector slide 326 capable of driving the bottom end of the ejector rod 325 to move upward is further installed below the machine table 1; the Z-direction ejector slide 326 stepwise drives the ejector rod 325 and the movable ejector plate 324 to eject the workpiece to be detected upward, thereby reducing the stroke of the picking cylinder and further saving time.

[0035] In the above-mentioned device, the adjustable support assembly 61 of the vision detection module 6 includes a pair of vertical mounting columns 611, a group of horizontal mounting columns 613 mounted on the vertical mounting columns 611 through adjustable clamping blocks 612, and a pair of positioning side plates 614 mounted on the horizontal mounting columns 613 and extending upward above the rotatable platform 2. The vision detection device 62 is installed between the pair of positioning side plates 614, and an auxiliary positioning block 615 is further connected between the positioning side plates 614 and the vertical mounting columns 611. The position of the vision detection device 62 can be flexibly adjusted through the above-mentioned adjustable support assembly 61 to suit the detection of products of different specifications.

[0036] In the above-mentioned device, the device further includes a machine cover assembly 8 arranged on the machine table 1, and the control module 7 is arranged on the machine cover assembly 8, including a touch display screen and control buttons.

[0037] Of course, in this embodiment, conventional structures such as limit blocks and return springs are also provided in components such as the cylinder drive mechanism and the slide rail assembly, which will not be elaborated here.

[0038] The device of the present invention adopts a rotating platform, and other modules are arranged around the rotating platform, so that the volume of the device can be minimized. Moreover, double picking components are adopted to realize synchronous loading and unloading, and seamless connection and operation are achieved between the detection station and the loading and unloading stations in a double-station alternating manner, without wasting time in the middle interval, so that the operation efficiency of the device is greatly improved, thereby reducing both the device cost and the detection cost.

[0039] It can be understood that the above embodiments are merely exemplary embodiments adopted to illustrate the principles of the present invention. However, the present invention is not limited thereto. For those of ordinary skill in the art, various modifications and improvements can be made without departing from the spirit and essence of the present invention, and these modifications and improvements are also regarded as the protection scope of the present invention.

Claims

1. A visual inspection device for lack of glue in multiple bins, comprising a machine platform, characterized in that: A rotatable platform is installed on the machine platform, on which there are at least two workpiece positioning frames, and a backlight is provided inside the workpiece positioning frames; A feeding module, a transfer module, a discharging module and a visual inspection module are respectively installed on the machine platform and around the rotatable platform; Among them, The feeding module includes a feeding slide rail assembly installed on the machine platform along the X direction, a feeding bin installed on the feeding slide rail assembly and sliding horizontally along it, and a feeding bin driving mechanism for driving the feeding bin to slide; The discharging module includes a set of discharging slide rail assemblies installed on the opposite side of the feeding slide rail assembly and parallel to the feeding slide rail assembly, a discharging bin installed on the discharging slide rail assembly and sliding horizontally along it, and a discharging bin driving mechanism for driving the discharging bin to slide, and the discharging bin includes a good product discharging bin and a defective product discharging bin arranged side by side along the discharging slide rail assembly; The transfer module has a Y-direction electric slide table arranged along the Y direction, and a first material taking component and a second material taking component installed on the Y-direction electric slide table and arranged along the Z direction. The first material taking component transfers the workpiece in the feeding bin to the loading and unloading station of the rotatable platform, and the second material taking component transfers the workpiece at the loading and unloading station to the discharging bin; The visual inspection module includes an adjustable support assembly and a visual inspection device installed on the adjustable support assembly. The visual inspection device is suspended above the rotatable platform; The visual inspection module is arranged on the opposite side of the transfer module; The visual inspection module, the feeding module, the discharging module and the transfer module are connected through a control module; After the first material taking component along the Z direction on the transfer module takes out the workpiece from the feeding bin, it is driven by its Y-direction electric slide table and transferred to and placed on the workpiece positioning frame on the rotatable platform; The rotatable platform rotates to make the workpiece located below the visual inspection module. The visual inspection module detects and judges whether there is lack of glue in the workpiece in the workpiece positioning frame with the assistance of the backlight, and then the rotatable platform moves back to the loading and unloading position. At the same time, the control module sends an instruction to the discharging driving mechanism of the discharging module according to the detection result, drives one of the discharging bins in the discharging module to reach the specified position, and then uses the second material taking component of the transfer module to take out the inspected workpiece from the workpiece positioning frame, and transfers it above the discharging bin and places it in the discharging bin under the drive of the Y-direction electric slide table; At the same time, the first material taking component takes out another workpiece from the feeding bin and synchronously transfers it above the workpiece positioning frame of the rotatable platform and places it down.

2. The visual inspection device for lack of glue in multiple bins according to claim 1, characterized in that: The transfer module includes a module support, a Y-direction electric slide table installed on the module support, a connecting support assembly installed on the Y-direction electric slide table and extending upward above the rotatable platform, a first material taking component and a second material taking component installed on the connecting support assembly along the Z direction. The first material taking component and the second material taking component include a material taking cylinder arranged along the Z direction and a material taking suction cup mechanism connected to the output end of the material taking cylinder.

3. The visual inspection device for lack of glue in multiple bins according to claim 1, characterized in that: The feeding bin and the discharging bin both include a bin bottom plate, an adjusting block, and a limiting upright post. The bin bottom plate is installed on the slider of the slide rail assembly. The position of the adjusting block on the bin bottom plate is adjustable, and the limiting upright post is arranged on the adjusting block.

4. The multi-bin glue shortage vision inspection device according to claim 1 or 3, characterized in that: The number of the feeding bins is two or more so as to quickly replenish the workpieces to be inspected without stopping the machine; the number of the discharging bins is two or four to facilitate taking away the inspected workpieces without stopping the machine.

5. The multi-bin glue shortage vision inspection device according to claim 1 or 3, characterized in that: An active ejector plate is further arranged above the bin bottom plate of the feeding bin. The active ejector plate is connected to an ejector rod that passes downward through the machine table. A strip-shaped hole for the ejector rod to pass through and move horizontally is formed in the machine table, and a Z-direction ejector slide table capable of driving the bottom end of the ejector rod to move upward is further installed below the machine table.

6. The multi-bin glue shortage vision inspection device according to claim 1, characterized in that: A backlight is arranged inside the workpiece positioning frame.

7. The multi-bin glue shortage vision inspection device according to claim 1, characterized in that: The adjustable support assembly of the vision inspection module includes a pair of vertical mounting columns, a group of horizontal mounting columns mounted on the vertical mounting columns through adjustable clamping blocks, and a pair of positioning side plates mounted on the horizontal mounting columns and extending above the rotatable platform. The vision inspection device is installed between the pair of positioning side plates, and an auxiliary positioning block is further connected between the positioning side plate and the vertical mounting column.

8. The multi-bin glue shortage vision inspection device according to claim 1, characterized in that: The inspection device further includes a machine cover assembly arranged on the machine table. The control module is arranged on the machine cover assembly and includes a touch display screen and control buttons.

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