CN112212786A - Circuit board detection device - Google Patents

Abstract

The invention relates to the technical field of circuit board detection and discloses a circuit board detection device. The circuit board detection device comprises a bracket; the conveying component is arranged below the bracket and is used for receiving incoming PCBA (printed Circuit Board Assembly) boards to be tested and driving the incoming PCBA boards to be tested to move relative to the bracket; the image acquisition assembly is arranged on the bracket and is positioned above the conveying assembly; and the processor is respectively connected with the image acquisition component and the conveying component, and is used for controlling the conveying component to convey the incoming PCBA to be detected to the lower part of the image acquisition component, controlling the image acquisition component to acquire the image of the incoming PCBA to be detected on the conveying component, and measuring the size information of the incoming PCBA to be detected according to the image. So that the board dividing machine presets a board dividing path according to the size of the supplied materials of the PCBA combined board.

Description

Circuit board detection device

Technical Field

The invention relates to the technical field of circuit board detection, in particular to a circuit board detection device.

Background

The Printed Circuit Board Assembly (PCBA) is a Printed Circuit Board with electronic components soldered and assembled by mounting the Circuit Board on a Surface Mount Technology (SMT) Board and then mounting the Circuit Board on a dual in-line package (DIP) Board. In order to facilitate the transportation of a plurality of PCBA boards, the PCBA boards manufactured by the above process are generally integrated into the same board, i.e. the PCBA composite board is supplied. When the PCBA composite board supplied materials need to be cut, the PCBA composite board supplied materials are cut along a preset board dividing path through the board dividing machine, and therefore the PCBA boards are obtained.

In the process of implementing the invention, the inventor finds that: the predetermined board dividing path of the board divider is generally determined by mark points on the incoming PCBA board. However, the board dividing operation of the PCBA supplied materials is completed by adopting the board dividing path, and the influence of the size of the PCBA supplied materials on the board dividing path is ignored, so that the board dividing precision of the board dividing machine is low.

Disclosure of Invention

In order to solve the technical problems, the invention provides a circuit board detection device for measuring the size of the supplied materials of the PCBA, so that a board dividing path is preset by a board dividing machine according to the size of the supplied materials of the PCBA, and the board dividing precision of the board dividing machine is improved.

The embodiment of the invention provides a circuit board detection device, which comprises: a support; the conveying component is arranged below the bracket and is used for receiving incoming PCBA (printed Circuit Board Assembly) boards to be tested and driving the incoming PCBA boards to be tested to move relative to the bracket; the image acquisition assembly is arranged on the bracket and is positioned above the conveying assembly; and the processor is respectively connected with the image acquisition component and the conveying component, and is used for controlling the conveying component to convey the incoming PCBA to be detected to the lower part of the image acquisition component, controlling the image acquisition component to acquire the image of the incoming PCBA to be detected on the conveying component, and measuring the size information of the incoming PCBA to be detected according to the image.

In some embodiments, the transport assembly comprises a drive mechanism, a first securing mechanism, a first detection module, and a translation mechanism; the driving mechanism is used for receiving the supplied materials of the PCBA to be detected and driving the supplied materials of the PCBA to be detected to move, the first fixing mechanism and the first detection module are both arranged on the driving mechanism, and the driving mechanism is arranged on the translation mechanism; the processor is respectively connected with the driving mechanism, the first fixing mechanism, the first detection module and the translation mechanism, and is used for controlling the driving mechanism to stop driving the supplied materials of the PCBA to be detected and controlling the first fixing mechanism to fix the supplied materials of the PCBA to be detected with the driving mechanism when the first detection module detects the supplied materials of the PCBA to be detected in the process that the driving mechanism drives the supplied materials of the PCBA to be detected to move, and then controlling the translation mechanism to move the driving mechanism so that the supplied materials of the PCBA to be detected pass through the range of the image acquisition assembly, and the image acquisition assembly shoots a complete image of the supplied materials of the PCBA to be detected.

In some embodiments, the drive mechanism includes a first transport module, a second transport module, and a spacing adjustment module; the first fixing mechanism and the first detection module are arranged on the first conveying module, the first conveying module and the second conveying module are arranged on the spacing adjustment module, the first conveying module can move relative to the second conveying module, and the spacing adjustment module is arranged on the translation mechanism; the first conveying module and the second conveying module are respectively used for bearing two sides of the supplied materials of the PCBA to be detected and driving the supplied materials of the PCBA to be detected to move, and the distance adjusting module is used for adjusting the distance between the first conveying module and the second conveying module.

In some embodiments, the first conveyor module comprises a first guide rail, a first motor, a first drive wheel, a first driven wheel, a second driven wheel, and a first belt; the second conveying module comprises a second guide rail, a second motor, a second driving wheel, a third driven wheel, a fourth driven wheel and a second belt; the first guide rail and the second guide rail are oppositely arranged on the distance adjusting module, the first driving wheel, the first driven wheel and the second driven wheel are rotatably arranged on the first guide rail, the first belt is sleeved on the first driving wheel, the first driven wheel and the second driven wheel, and the first motor is connected with the first driving wheel and used for driving the first driving wheel to rotate; the second driving wheel, the third driven wheel and the fourth driven wheel are all rotatably arranged on the second guide rail, the second belt is sleeved on the second driving wheel, the third driven wheel and the fourth driven wheel, and the second motor is connected with the second driving wheel and used for driving the second driving wheel to rotate; the first belt and the second belt are used for bearing one side of the supplied materials of the PCBA to be detected, the second belt is used for bearing the other side of the supplied materials of the PCBA to be detected, and the first fixing mechanism and the first detection mechanism are arranged on the first guide rail.

In some embodiments, the first rail is provided with a first notch; first fixed establishment includes first cylinder and first butt plate, first cylinder is fixed in first guide rail, first cylinder with first butt plate is connected, first cylinder is used for control first butt plate is followed first breach stretches into the top of first belt, perhaps, control first butt plate is withdrawed in the first breach, wherein, works as first butt plate is followed first breach stretches into when the top of first belt, first butt plate is fixed the PCBA compoboard supplied materials that await measuring.

In some embodiments, the first guide rail is further provided with a second notch; the conveying component further comprises a second fixing mechanism, the second fixing mechanism comprises a second air cylinder and a second abutting plate, the second air cylinder is fixed on the first guide rail, the second air cylinder is connected with the second abutting plate, the second air cylinder is used for controlling the second abutting plate to stretch into the upper portion of the first belt from the second notch, or controlling the second abutting plate to retract into the second notch, wherein when the supplied material part of the PCBA to be detected blocks the second notch, the second air cylinder controls the second abutting plate to be fixed on the PCBA to be detected.

In some embodiments, the first guide rail is further provided with a third notch; the conveying assembly further comprises a third fixing mechanism, the third fixing mechanism comprises a third air cylinder and a third abutting plate, the third air cylinder is fixed on the first guide rail, the third air cylinder is connected with the third abutting plate, the third air cylinder is used for controlling the third abutting plate to stretch into the upper portion of the first belt from a third notch, or controlling the third abutting plate to retract into the third notch, wherein when the PCBA composition board to be detected supplies, the second air cylinder controls the second abutting plate to be fixed, and the PCBA composition board to be detected supplies.

In some embodiments, the first guide rail is provided with a through hole, and the second guide rail is provided with a first screw hole; the interval adjusting module comprises a supporting plate, a first screw rod and an adjusting hand wheel, the first guide rail and the second guide rail are arranged in the supporting plate, one end of the first screw rod penetrates through the through hole and the first screw hole respectively, the first screw hole is connected with the first screw hole in a screwed mode, the other end of the first screw rod is provided with the adjusting hand wheel, and the adjusting hand wheel is used for rotating the first screw rod so that the first guide rail is close to or far away from the second guide rail.

In some embodiments, the support plate is provided with a second screw hole; the translation mechanism comprises a motor and a second screw rod, the motor and the second screw rod are arranged on the first support, one end of the second screw rod is sleeved on a rotating shaft of the motor, the other end of the second screw rod penetrates through the second screw hole and is in threaded connection with the second screw hole, and the motor is used for rotating the second screw rod so that the second screw rod drives the supporting plate to move in the length direction of the second screw rod.

In some embodiments, the image capturing assembly is adjustably positionable on the stand to adjust a height at which the image capturing assembly is mounted on the stand.

The embodiment of the invention has the beneficial effects that: the invention provides a circuit board detection device which is different from the prior art and comprises a support, a conveying assembly, an image acquisition assembly and a processor. The conveying assembly and the image acquisition assembly are arranged on the support, and the processor is connected with the image acquisition assembly and the conveying assembly respectively. When the supplied materials of the PCBA to be detected are conveyed to the lower part of the image acquisition component through the conveying component, the image acquisition component acquires images of the supplied materials of the PCBA to be detected, and the processor measures size information of the supplied materials of the PCBA to be detected according to the images after acquiring the images, so that the board dividing machine can conveniently preset a board dividing path according to the size of the supplied materials of the PCBA to be detected measured by the circuit board detection device, the influence of the size of the supplied materials of the PCBA to the board dividing path is eliminated, and the board dividing precision of the board dividing machine is improved.

Drawings

One or more embodiments are illustrated by the corresponding figures in the drawings,

these are illustrative and do not constitute a limitation on the embodiments, which have been given the same reference numerals in the drawings

Numbered elements are referred to as similar elements and unless otherwise specifically noted, the figures in the drawings are not to scale.

Fig. 1 is a schematic structural diagram of a circuit board detection device provided by the present invention;

FIG. 2 is an exploded view of the structure of FIG. 1;

FIG. 3 is an exploded view of the structure of FIG. 2 from another angle;

FIG. 4 is an exploded view of the different structure of FIG. 2;

fig. 5 is a schematic structural diagram of a first conveying module of the circuit board detection apparatus provided in the present invention;

fig. 6 is a schematic structural diagram of a second conveying module of the circuit board detection apparatus provided in the present invention;

fig. 7 is a schematic structural diagram of a spacing adjustment module of the circuit board detection apparatus according to the present invention;

fig. 8 is a schematic structural view of fig. 7 at another angle.

Detailed Description

In order to facilitate an understanding of the invention, the invention is described in more detail below with reference to the accompanying drawings and detailed description. It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may be present. The terms "vertical," "horizontal," "left," "right," "inner," "outer," and the like as used herein are for descriptive purposes only.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

Furthermore, the technical features mentioned in the different embodiments of the invention described below can be combined with each other as long as they do not conflict with each other.

Referring to fig. 1 and fig. 2, a circuit board detecting apparatus according to an embodiment of the present invention is provided for measuring sizes of incoming materials of a PCBA assembly board to be measured. Of course, the circuit board detection device according to the embodiment of the present invention is not limited to the above application scenario, and may also be applied to measurement operations of other electronic components. In addition, for convenience of describing the position relationship among the components of the circuit board detection device, the circuit board detection device is placed on a plane as a reference.

Specifically, the circuit board inspection device 10 includes a support 11, a conveying assembly 12, an image capturing assembly 13, and a processor (not shown). The conveying component 12 and the image acquisition component 13 are both arranged on the support 11, the processor is respectively connected with the image acquisition component 13 and the conveying component 12, the conveying component 12 is used for receiving PCBA composition board supplied materials to be detected and driving the PCBA composition board supplied materials to be detected to move relative to the support 11, the processor is used for controlling the conveying component 12 to convey the PCBA composition board supplied materials to be detected to the lower part of the image acquisition component 13, the image acquisition component 13 is controlled to acquire images of the PCBA composition board supplied materials to be detected on the conveying component 12, and the size information of the PCBA composition board supplied materials to be detected is measured according to the images.

With reference to the above-mentioned support 11, please continue to refer to fig. 2, the support 11 includes a main plate 111, a first side plate 112, a second side plate 113, a top plate 114 and a slide rail. The first side plate 112 and the second side plate 113 are respectively disposed on two sides of the main plate 111, the first side plate 112 and the second side plate 113 are parallel to each other, the top plate 114 is located above the main plate 111, and two sides of the top plate 114 are respectively connected to the first side plate 112 and the second side plate 113.

In some embodiments, to facilitate height adjustment of the top plate 114, the bracket 11 further includes a first fastener (not shown) and a second fastener (not shown). The first side plate 112 is provided with a first adjusting groove (not shown in the figure), a groove body of the first adjusting groove extends along the length direction of the first side plate 112, one side of the top plate 114 is provided with a first screw hole (not shown in the figure), and a first fastening piece passes through the first adjusting groove and is fixed with the first screw hole (not shown in the figure) in a threaded manner. The second side plate 113 is provided with a second adjusting groove (not shown in the figure), a groove body of the second adjusting groove extends along the length direction of the second side plate 113, the other side of the top plate 114 is provided with a second screw hole (not shown in the figure), and a second fastening piece passes through the second adjusting groove and is fixed with the second screw hole in a threaded manner. Wherein, the first fastener and the second fastener can be knobs or screws.

In other embodiments, the circuit board detection device may not include the second fastener, that is, the first fastener is screwed into the first screw hole to push one side of the top plate 114 to move toward the other side of the top plate 114, so that the other side of the top plate 114 is clamped with the second side plate 113, and the top plate 114 can be height-adjustably fixed with the first side plate 112 and the second side plate 113. In summary, the height-adjustable connection between the first side plate 112, the second side plate 113 and the top plate 114 is not limited in this application.

In some embodiments, the tilting of the top panel 114 with the first side panel 112 and the second side panel 113 occurs in order to reduce the height of the top panel 114 during adjustment. The first side plate 112 further has a first guide groove (not shown), the second side plate 113 further has a second guide groove (not shown), the top plate 114 further has a first boss (not shown) and a second boss (not shown), the first boss and the second boss are respectively located at two sides of the top plate, the first boss is inserted into the first guide groove, and the second boss is inserted into the second guide groove, so that the top plate 114 can slide synchronously relative to the first side plate 112 and the second side plate 113.

Referring to fig. 3, fig. 4 and fig. 5 respectively for the conveying assembly 12, the conveying assembly 12 includes a driving mechanism 121, a translating mechanism 122, a first fixing mechanism 123, a second fixing mechanism 124, a third fixing mechanism 125, a first detecting module 126, a second detecting module 127 and a third detecting module 128.

With reference to the driving mechanism 121, please continue to refer to fig. 3, the driving mechanism 121 includes a first conveying module 1211, a second conveying module 1212, and a spacing adjustment module 1213. The first conveying module 1211 and the second conveying module 1212 are both disposed on the distance adjusting module 1213, the first conveying module 1211 is movable relative to the second conveying module 1212, the distance adjusting module 1213 is disposed on the translation mechanism 122, the first conveying module 1211 and the second conveying module 1212 are respectively configured to bear two sides of the incoming PCBA assembly board to be tested, and jointly drive the incoming PCBA assembly board to be tested to move, and the distance adjusting module 1213 is configured to adjust a distance between the first conveying module 1211 and the second conveying module 1212.

With respect to the first conveying module 1211 described above, please continue to refer to fig. 5, the first conveying module 1211 includes a first guide rail 12111, a first motor 12112, a first driving pulley 12113, a first driven pulley 12114, a second driven pulley 12115, and a first belt 12116. The first guide rail 12111 is disposed on the interval adjustment module 1213, the first driving wheel 12113, the first driven wheel 12114 and the second driven wheel 12115 are all rotatably disposed on the first guide rail 12111, the first driving wheel 12113, the first driven wheel 12114 and the second driven wheel 12115 are sleeved with a first belt 12116, the first motor 12112 is connected to the first driving wheel 12113 for driving the first driving wheel 12113 to rotate, and the first belt 12116 is used for bearing one side of the incoming material of the PCBA assembly board to be tested.

Further, the first guide rail 12111 is movable relative to the second transport module 1212, and the first guide rail 12111 is provided with a first notch 12111a, a second notch 12111b, a third notch 12111c and a first screw (not shown).

Referring to fig. 6, the second conveying module 1212 includes a second guide rail 12121, a second motor 12122, a second driving wheel 12123, a third driven wheel 12124, a fourth driven wheel 12125, and a second belt 12126. The first guide rail 12111 and the second guide rail 12121 are disposed on the distance adjustment module 1213, the second driving wheel 12123, the third driven wheel 12124 and the fourth driven wheel 12125 are rotatably disposed on the second guide rail 12121, the second belt 12126 is sleeved on the second driving wheel 12123, the third driven wheel 12124 and the fourth driven wheel 12125, the first motor 12122 is connected to the second driving wheel 12123 for driving the second driving wheel 12123 to rotate, and the second belt 12126 is used for bearing the other side of the incoming material of the PCBA assembly board to be tested.

Further, the second guide rail 12121 is provided with a through hole (not shown) for the interval adjustment module 1213 to pass through.

Referring to fig. 7 and 8, the distance adjustment module 1213 includes a support plate 12131, a first lead screw 12132, and an adjustment hand wheel 12133. The support plate 12131 is disposed on the translation mechanism 122, the first guide rail 12111 and the second guide rail 12121 are both disposed on the support plate 12131, the first guide rail 12111 can move relative to the second guide rail 12121, the adjusting handwheel 12133 is fixed to one end of the first lead screw 12132, the other end of the first lead screw 12132 passes through the through hole and is screwed to the first screw hole, and the adjusting handwheel 12133 is used to rotate the first lead screw 12132, so that the first guide rail 12111 is close to or far away from the second guide rail 12121, thereby realizing a function of adjusting a distance between the second guide rail 12121 and the first guide rail 12111.

Further, the supporting plate 12131 is provided with a first support (not shown) and a second support (not shown). One end of the first lead screw 12132 passes through the first holder, and one end of the first lead screw 12132 is inserted into the second holder.

In some embodiments, to prevent the rotation of the first lead screw 12132 from causing the distance between the second guide rail 12121 and the first guide rail 12111 to change, the distance adjustment module 1213 further includes a locking block 12134 for adjusting the tightness of the first lead screw 12132 to lock or unlock the first lead screw 12132.

In some embodiments, to facilitate movement of the first rail 12111 on the support panel 12131, the first transport module 1211 further includes a rail slide (not shown) and the spacing adjustment module further includes a cross rail (not shown). The guide rail sliding block is arranged on the first guide rail, the transverse guide rail is arranged on the supporting plate, and the guide rail sliding block is clamped with the transverse guide rail so that the first guide rail slides relative to the second guide rail.

Further, the number of guide rail slider is two, divide into first guide rail slider and second guide rail slider, and the number of cross guide is two, divide into first cross guide and second cross guide, and wherein, first guide rail slider and first cross guide joint, second guide rail slider and second cross guide joint.

Furthermore, the spacing adjustment module further comprises a stop block (not shown in the figure), and the stop block is fixed at the end of the second transverse guide rail and used for limiting the effective sliding stroke of the second transverse guide rail and preventing the second guide rail sliding block from sliding along the second transverse guide rail.

Referring to the above-mentioned translation mechanism 122, please refer to fig. 4, the translation mechanism 122 includes a third motor 1221 and a second screw 1222, the third motor 1221 is disposed on the main board 111, one end of the second screw 1222 is sleeved on a rotation shaft of the third motor 1221, the other end of the second screw 1222 passes through the second screw hole and is screwed with the second screw hole, the third motor 1221 is configured to rotate the second screw 1222, so that the second screw 1222 drives the supporting plate 12131 to move in the length direction of the second screw 1222.

In some embodiments, to facilitate the sliding of the supporting plate, the translation mechanism 122 further includes a motherboard slider (not shown) and a motherboard slide rail (not shown), the motherboard slider is disposed on the supporting plate, the motherboard slide rail is disposed on the motherboard, the motherboard slider is connected to the motherboard slide rail, and the motherboard slider can move relative to the motherboard slide rail, so that the supporting plate can move relative to the motherboard.

With respect to the first fixing mechanism 123, please continue to refer to fig. 5, the first fixing mechanism 123 includes a first cylinder 1231 and a first abutting plate 1232, the first cylinder 1231 is fixed on the first guide rail 12111, and the first cylinder 1231 is connected to the first abutting plate 1232, the first cylinder 1231 is used for controlling the first abutting plate 1232 to extend from the first notch 1211a to the upper side of the first belt 12116, or controlling the first abutting plate 1232 to retract into the first notch 1211a, wherein when the first abutting plate 1232 extends from the first notch 1211a to the upper side of the first belt 12116, the first abutting plate 1232 fixes the PCBA assembly.

With reference to the second fixing mechanism 124, please refer to fig. 5, the second fixing mechanism 124 includes a second cylinder 1241 and a second abutting plate 1242, the second cylinder 1241 is fixed on the first guide rail 12111, and the second cylinder 1241 is connected to the second abutting plate 1242, the second cylinder 1241 is used to control the second abutting plate 1242 to extend into the upper side of the first belt 12116 from the second notch 12111b, or control the second abutting plate 1242 to retract into the second notch 12111b, wherein when the second abutting plate 1242 extends into the upper side of the first belt 12116 from the second notch 12111b, the second abutting plate 1242 fixes the PCBA assembly board material.

With respect to the third fixing mechanism 125, please continue to refer to fig. 5, the third fixing mechanism 125 includes a third cylinder 1251 and a third abutting plate 1252, the third cylinder 1251 is fixed on the first guide rail 12111, and the third cylinder 1251 is connected to the third abutting plate 1252, the third cylinder 1251 is used to control the third abutting plate 1252 to extend from the third notch 12111c to the upper side of the first belt 12116, or to control the third abutting plate 1252 to retract into the third notch 12111c, wherein when the third abutting plate 1252 extends from the third notch 12111c to the upper side of the first belt 12116, the third abutting plate 1252 fixes the PCBA assembly board incoming material.

Referring to the first detecting module 126, please continue to refer to fig. 5, the first detecting module is disposed on the first guide rail 12111, and the first detecting module 126 is connected to the processor, and the first detecting module 126 is configured to detect whether the PCBA assembly board incoming material is placed between the first guide rail 12111 and the second guide rail 12121. The first detecting module 126 is a photoelectric sensor.

Referring to the second detecting module 127, please continue to refer to fig. 5, the second detecting module 127 is disposed on the first guide rail 12111, and the third detecting module 127 is connected to the processor, the second detecting module 127 is configured to detect whether the incoming PCBA board material moves into the area detected by the second detecting module 127. The second detecting module 127 is a photoelectric sensor.

Referring to the third detecting module 128, please continue to refer to fig. 5, the third detecting module 128 is disposed on the first guiding rail 12111, and the third detecting module 128 is connected to the processor, and the third detecting module 128 is used for detecting whether the incoming PCBA component moves to the area detected by the third detecting module 128. The third detection module is a photoelectric sensor.

With reference to the image capturing assembly 13, please refer to fig. 2, which includes a camera 131 and a camera holder 132, wherein the camera 131 is disposed on the camera holder 132, and the camera holder 132 can move relative to the top plate 114. The camera 131 may be a general camera, a CCD camera, or other devices having an imaging function.

In some embodiments, the position of the image acquisition assembly 13 is easily adjusted. The top plate 114 is further provided with a guide groove (not shown) extending from an end of the top plate 114 to a middle of the top plate 114, and the camera fixing base 132 is further provided with a guide rod (not shown) inserted into the guide groove so as to move the camera fixing base 132 relative to the top plate 114.

For the circuit board detection device 10 described above, the detection process of the circuit board detection device 10 is as follows: according to the width size of the incoming PCBA composite board material, the adjusting hand wheel 12133 is rotated to adjust the distance between the second guide rail 12121 and the second guide rail 12111, the two sides of the incoming PCBA composite board material to be adjusted are respectively placed on the first belt 12116 and the second belt 12126, and the adjusting hand wheel 12133 is locked by the locking block.

The two sides of the incoming PCBA component are placed on the first belt 12116 and the second belt 12126, respectively, the first detection module 126 detects the position of the incoming PCBA component, and the processor controls the first motor 12112 and the second motor 12122 to rotate at a constant speed simultaneously, so as to drive the incoming PCBA component to flow along the transport direction of the first belt 12116 or the second belt 12126.

When the incoming PCBA material flows through the second detection module 127, the second detection module 127 detects the position of the incoming PCBA material, and sends information including the position of the incoming PCBA material detected by the second detection module 127 to the processor, and the processor controls the first fixing mechanism 123 so that the first fixing mechanism 123 fixes the incoming PCBA material. Meanwhile, the processor controls the motor to drive the first guide rail 12111 and the second guide rail unit 12121 to move, and controls the image acquisition component 13 to acquire a complete image of the incoming PCBA composition board and calculate the size of the incoming PCBA composition board.

After the image acquisition component finishes acquiring the image, the processor controls the first fixing mechanism 123 to release the PCBA assembly incoming material from the first fixing mechanism 123, and simultaneously starts the first motor 12112 and the second motor 12122 again to continue flowing the PCBA assembly incoming material, and when the third detection module 128 detects the position of the PCBA assembly incoming material, the processor respectively controls the second fixing mechanism 124 and the third fixing mechanism 125 to fix the PCBA assembly incoming material together by the second fixing mechanism 124 and the third fixing mechanism 125.

In some embodiments, to reduce the influence of ambient light on the imaging quality of the image capturing assembly, the circuit board inspection device further includes a first light source assembly 14 and a second light source assembly 15. First light source subassembly 14 sets up in the top of carrying subassembly 12, and second light source subassembly 15 sets up in the below of carrying subassembly 12, and first light source subassembly 14 is used for improving the luminance of the PCBA compoboard supplied materials upper surface that awaits measuring, and second light source subassembly 15 is used for improving the luminance of the PCBA compoboard supplied materials lower surface that awaits measuring.

With reference to the first light source assembly 14, please continue to refer to fig. 2, the first light source assembly 14 includes a first fixing plate 141, a first side fixing plate 142, a second side fixing plate 143, and a first light source 144. The two ends of the first fixing plate 141 are connected to the first side plate 112 and the second side plate 113 respectively, the first side fixing plate 142 and the second side fixing plate 143 are both disposed on the first fixing plate 141, the two ends of the first light source 144 are connected to the first side fixing plate 142 and the second side fixing plate 143 respectively, and the first light source 144 is used for improving the brightness of the upper surface of the supplied material of the PCBA to be tested. The first light source 144 is a coaxial light source or an annular light source.

With reference to the second light source assembly 15, please refer to fig. 2, the second light source assembly 15 includes a first bottom fixing plate 151, a second bottom fixing plate 152 and a second light source 153. The first bottom fixing plate 151 and the second bottom fixing plate 152 are both disposed on the main board 111, two ends of the second light source 153 are respectively connected to the first bottom fixing plate 151 and the second bottom fixing plate 152, the second light source 153 is used for improving the brightness of the lower surface of the supplied material of the PCBA composite board to be tested, and the second light source 153 is a coaxial light source or an annular light source.

In some embodiments, to facilitate adjusting the irradiation position of the first light source 153, the first light source assembly 14 further includes a first fixing member (not shown) and a second fixing member (not shown). The first side fixing plate 142 has a first shaft hole (not shown) and a first arc-shaped groove (not shown), one end of the first light source 144 has a first protrusion (not shown) and a first screw hole (not shown), the first protrusion is inserted into the first shaft hole, and the first fixing member passes through the first arc-shaped groove and is fixed to the first screw hole in a screw manner. The second side fixing plate 143 has a second shaft hole (not shown) and a second arc-shaped slot (not shown), the other end of the first light source 144 has a second protrusion and a second screw hole, the second protrusion is inserted into the second shaft hole, and the second fixing member passes through the second arc-shaped slot and is fixed to the second screw hole by screw connection. The first fixing piece and the second fixing piece are both knobs or screws.

When the angle of the first light source 144 needs to be adjusted, the first fixing member is screwed out from the first screwing hole, the second fixing member is screwed out from the second screwing hole, so that the first light source 144 can rotate around the axes of the first screwing hole and/or the second screwing hole, after the angle of the first light source is rotated, the first fixing member is screwed into the first screwing hole, so that the first side fixing plate 142 is clamped on the first light source 144, and meanwhile, the second fixing member is screwed into the second screwing hole, so that the second side fixing plate 143 is clamped on the first light source 144, thereby realizing the manual adjustment of the angle of the first light source 144.

In some embodiments, the first light source 144 is easily adjusted manually. It is also possible to omit the first adjusting member or the second adjusting member, that is, one side of the first light source 144 is rotatably connected to the first side fixing plate 142, or the other side of the first light source 144 is rotatably connected to the second side fixing plate 143. In summary, the connection manner between the first light source 144 and the first and second side fixing plates 142 and 143 is not limited in this application.

In some embodiments, the illumination position of the second light source 153 is easily adjusted. The second light source assembly 15 further includes a third fixing member (not shown) and a fourth fixing member (not shown). The first bottom fixing plate 151 is provided with a third shaft hole (not shown in the figure) and a third arc-shaped groove (not shown in the figure), one end of the second light source 153 is provided with a third convex column (not shown in the figure) and a third screw hole (not shown in the figure), the third convex column is inserted into the third shaft hole, and the third fixing member passes through the third arc-shaped groove and is fixed with the third screw hole in a screw joint manner. The second bottom fixing plate 152 is provided with a fourth shaft hole (not shown in the figure) and a fourth arc-shaped groove (not shown in the figure), the other end of the second light source 153 is provided with a fourth convex column (not shown in the figure) and a fourth screw hole (not shown in the figure), the fourth convex column is inserted into the fourth shaft hole, and the fourth fixing member passes through the fourth arc-shaped groove and is fixed with the fourth screw hole in a screw joint manner.

When the angle of the second light source 153 needs to be adjusted, the third fixing member is screwed out from the third screw hole, the fourth fixing member is screwed out from the fourth screw hole, so that the second light source 153 can rotate around the axis of the third screw hole and/or the fourth screw hole, after the angle of the second light source 153 is rotated, the third fixing member is screwed into the third screw hole to clamp the first bottom fixing plate 151 to the second light source, and the fourth fixing member is screwed into the fourth screw hole to clamp the second bottom fixing plate 152 to the first light source, thereby realizing manual adjustment of the second light source.

In some embodiments, the second light source 153 is easily adjusted manually. It is also possible that the second light source is not disposed in the third fixing member or the fourth fixing member, that is, one side of the second light source is rotatably connected to the first bottom fixing plate, or the other side of the second light source 153 is rotatably connected to the second bottom fixing plate 152. In summary, the rotational connection between the second light source 153 and the first bottom fixing plate 151 and the second bottom fixing plate 152 is not limited in this application.

In other embodiments, automatic adjustment of the first light source 144 and the second light source 153 is achieved. The first light source assembly 14 may not have the first fixing member and the second fixing member, that is, the first light source assembly 14 may further include a first light source rotating mechanism (not shown). The two ends of the first light source 14 are respectively connected with the first side fixing plate 142 and the second side fixing plate 143 in a rotating manner, and the first light source rotating mechanism is connected with the first light source 144 and is used for driving the first light source 144 to rotate.

The second light source assembly 15 may not have the third adjusting member and the fourth adjusting member, that is, the second light source assembly 15 further includes a second light source rotating mechanism (not shown in the figure). Two ends of the second light source 153 are rotatably connected to the first bottom fixing plate 151 and the second bottom fixing plate 152, respectively, and the second light source rotating mechanism is connected to the second light source 153 and is configured to drive the second light source to rotate, wherein the first light source rotating mechanism and the second light source rotating mechanism are driving mechanisms of a servo motor connected to a speed reducer.

The processor can be connected to the first light source 144, the first light source rotating mechanism, the second light source 153 and the second light source rotating mechanism respectively. When the conveying component enables incoming materials of the PCBA to be detected to pass through the view finding range of the image acquisition component, the processor feeds back information that the incoming materials of the PCBA to be detected fall into the view finding range of the image acquisition component according to the image acquisition component, the first light source and the second light source are started, the processor controls the first light source rotating mechanism and the second light source rotating mechanism respectively, the first light source is driven to rotate through the first light source rotating mechanism, the second light source rotating mechanism drives the second light source to rotate, and therefore the overlapping area of light emitted by the first light source and the second light source falls into the view finding range of the image acquisition component.

In other embodiments, the effect of directing the second light source to the lens of the image capturing assembly on the imaging quality is reduced. The processor may provide another way to control the first light source rotating mechanism to adjust the first light source and the second light source rotating mechanism to adjust the second light source, that is, the processor synchronously rotates the first light source rotating mechanism and the second light source rotating mechanism. When the conveying component conveys the PCBA composition board supplied materials to be detected to pass through the view finding range of the image acquisition component, the processor respectively controls the first light source rotating mechanism to adjust the rotating angle of the first light source and controls the second light source rotating mechanism to adjust the rotating angle of the second light source, so that the first light source and the second light source continuously irradiate the upper surface and the lower surface of the PCBA composition board supplied materials to be detected until the image acquisition component acquires a complete image of the PCBA composition board supplied materials to be detected.

The invention provides a circuit board detection device 10, which comprises a bracket 11, a conveying assembly 12, an image acquisition assembly 13 and a processor (not shown in the figure). The conveying assembly 12 and the image acquisition assembly 13 are both arranged on the support 11, and the processor is respectively connected with the image acquisition assembly 13 and the conveying assembly 12. When the incoming PCBA board material to be detected is conveyed to the lower part of the image acquisition component 13 through the conveying component 12, the image acquisition component 13 acquires an image of the incoming PCBA board material to be detected, and the processor measures size information of the incoming PCBA board material to be detected according to the image after acquiring the image, so that the board dividing machine can conveniently preset a board dividing path according to the size of the incoming PCBA board material measured by the circuit board detection device 10, the influence of the size of the incoming PCBA board material on the board dividing path is eliminated, and the board dividing precision of the board dividing machine is improved.

The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes performed by the present specification and drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.

Claims (10)

1. A circuit board inspection device, comprising:

a support;

the conveying component is arranged below the bracket and is used for receiving incoming PCBA (printed Circuit Board Assembly) boards to be tested and driving the incoming PCBA boards to be tested to move relative to the bracket;

the image acquisition assembly is arranged on the bracket and is positioned above the conveying assembly; and

and the processor is respectively connected with the image acquisition component and the conveying component, and is used for controlling the conveying component to convey the supplied materials of the PCBA to be detected to the lower part of the image acquisition component, controlling the image acquisition component to acquire images of the supplied materials of the PCBA to be detected on the conveying component, and measuring the size information of the supplied materials of the PCBA to be detected according to the images.

2. The apparatus according to claim 1, wherein the transport assembly comprises a driving mechanism, a first fixing mechanism, a first detection module and a translation mechanism;

the driving mechanism is used for receiving the supplied materials of the PCBA to be detected and driving the supplied materials of the PCBA to be detected to move, the first fixing mechanism and the first detection module are both arranged on the driving mechanism, and the driving mechanism is arranged on the translation mechanism;

the processor is respectively connected with the driving mechanism, the first fixing mechanism, the first detection module and the translation mechanism, and is used for controlling the driving mechanism to stop driving the supplied materials of the PCBA to be detected and controlling the first fixing mechanism to fix the supplied materials of the PCBA to be detected with the driving mechanism when the first detection module detects the supplied materials of the PCBA to be detected in the process that the driving mechanism drives the supplied materials of the PCBA to be detected to move, and then controlling the translation mechanism to move the driving mechanism so that the supplied materials of the PCBA to be detected pass through the range of the image acquisition assembly, and the image acquisition assembly shoots a complete image of the supplied materials of the PCBA to be detected.

3. The apparatus according to claim 2, wherein the driving mechanism comprises a first conveying module, a second conveying module and a spacing adjustment module;

the first fixing mechanism and the first detection module are arranged on the first conveying module, the first conveying module and the second conveying module are arranged on the spacing adjustment module, the first conveying module can move relative to the second conveying module, and the spacing adjustment module is arranged on the translation mechanism;

the first conveying module and the second conveying module are respectively used for bearing two sides of the supplied materials of the PCBA to be detected and driving the supplied materials of the PCBA to be detected to move, and the distance adjusting module is used for adjusting the distance between the first conveying module and the second conveying module.

4. The circuit board inspection device according to claim 3,

the first conveying module comprises a first guide rail, a first motor, a first driving wheel, a first driven wheel, a second driven wheel and a first belt;

the second conveying module comprises a second guide rail, a second motor, a second driving wheel, a third driven wheel, a fourth driven wheel and a second belt;

the first guide rail and the second guide rail are oppositely arranged on the distance adjusting module, the first driving wheel, the first driven wheel and the second driven wheel are rotatably arranged on the first guide rail, the first belt is sleeved on the first driving wheel, the first driven wheel and the second driven wheel, and the first motor is connected with the first driving wheel and used for driving the first driving wheel to rotate;

the second driving wheel, the third driven wheel and the fourth driven wheel are all rotatably arranged on the second guide rail, the second belt is sleeved on the second driving wheel, the third driven wheel and the fourth driven wheel, and the second motor is connected with the second driving wheel and used for driving the second driving wheel to rotate;

the first belt and the second belt are used for bearing one side of the supplied materials of the PCBA to be detected, the second belt is used for bearing the other side of the supplied materials of the PCBA to be detected, and the first fixing mechanism and the first detection mechanism are arranged on the first guide rail.

5. The circuit board detection device according to claim 4, wherein the first guide rail is provided with a first notch;

first fixed establishment includes first cylinder and first butt plate, first cylinder is fixed in first guide rail, first cylinder with first butt plate is connected, first cylinder is used for control first butt plate is followed first breach stretches into the top of first belt, perhaps, control first butt plate is withdrawed in the first breach, wherein, works as first butt plate is followed first breach stretches into when the top of first belt, first butt plate is fixed the PCBA compoboard supplied materials that await measuring.

6. The circuit board detection device according to claim 4, wherein the first guide rail is further provided with a second notch;

the conveying component further comprises a second fixing mechanism, the second fixing mechanism comprises a second air cylinder and a second abutting plate, the second air cylinder is fixed on the first guide rail, the second air cylinder is connected with the second abutting plate, the second air cylinder is used for controlling the second abutting plate to stretch into the upper portion of the first belt from the second notch, or controlling the second abutting plate to retract into the second notch, wherein when the supplied material part of the PCBA to be detected blocks the second notch, the second air cylinder controls the second abutting plate to be fixed on the PCBA to be detected.

7. The circuit board detection device according to claim 4, wherein the first guide rail is further provided with a third notch;

the conveying assembly further comprises a third fixing mechanism, the third fixing mechanism comprises a third air cylinder and a third abutting plate, the third air cylinder is fixed on the first guide rail, the third air cylinder is connected with the third abutting plate, the third air cylinder is used for controlling the third abutting plate to stretch into the upper portion of the first belt from a third notch, or controlling the third abutting plate to retract into the third notch, wherein when the PCBA composition board to be detected supplies, the second air cylinder controls the second abutting plate to be fixed, and the PCBA composition board to be detected supplies.

8. The circuit board detection device according to claim 4, wherein the first guide rail is provided with a through hole, and the second guide rail is provided with a first screw hole;

the interval adjusting module comprises a supporting plate, a first screw rod and an adjusting hand wheel, the first guide rail and the second guide rail are arranged in the supporting plate, one end of the first screw rod penetrates through the through hole and the first screw hole respectively, the first screw hole is connected with the first screw hole in a screwed mode, the other end of the first screw rod is provided with the adjusting hand wheel, and the adjusting hand wheel is used for rotating the first screw rod so that the first guide rail is close to or far away from the second guide rail.

9. The circuit board inspection device of claim 8, wherein the support plate is provided with a second screw hole;

the translation mechanism comprises a motor and a second screw rod, the motor and the second screw rod are arranged on the first support, one end of the second screw rod is sleeved on a rotating shaft of the motor, the other end of the second screw rod penetrates through the second screw hole and is in threaded connection with the second screw hole, and the motor is used for rotating the second screw rod so that the second screw rod drives the supporting plate to move in the length direction of the second screw rod.

10. The apparatus of claim 1, wherein the image capturing assembly is adjustably positionable on the bracket to adjust a height at which the image capturing assembly is mounted on the bracket.

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