CN112020224B - Level correction apparatus - Google Patents
Level correction apparatus Download PDFInfo
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- CN112020224B CN112020224B CN201910469248.5A CN201910469248A CN112020224B CN 112020224 B CN112020224 B CN 112020224B CN 201910469248 A CN201910469248 A CN 201910469248A CN 112020224 B CN112020224 B CN 112020224B
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- 238000003708 edge detection Methods 0.000 claims abstract description 35
- 239000000725 suspension Substances 0.000 claims abstract description 29
- 238000000034 method Methods 0.000 description 13
- 230000008878 coupling Effects 0.000 description 4
- 238000010168 coupling process Methods 0.000 description 4
- 238000005859 coupling reaction Methods 0.000 description 4
- 239000000470 constituent Substances 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 239000013307 optical fiber Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
Classifications
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K3/00—Apparatus or processes for manufacturing printed circuits
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K2203/00—Indexing scheme relating to apparatus or processes for manufacturing printed circuits covered by H05K3/00
- H05K2203/16—Inspection; Monitoring; Aligning
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Length Measuring Devices By Optical Means (AREA)
Abstract
A level correction apparatus comprising: the carrier structure comprises a seat frame, a first suspension frame and a second suspension frame; the first plate edge detection unit is arranged on the first suspension bracket and comprises a first light emitting device and a first light receiving device; the second plate edge detection unit is arranged on the second suspension bracket and comprises a second light emitting device and a second light receiving device; the rotary driving unit is arranged on the carrier structure; the rotary clamping mechanism comprises a transverse frame, a first clamping device and a second clamping device, wherein the first clamping device and the second clamping device are arranged at two ends of the transverse frame. The first clamping device and the second clamping device can clamp the top edge of the circuit board, so that the top edge of the circuit board is lower than the light rays emitted by the first light emitting device and the second light emitting device; the rotary driving unit can drive the rotary clamping mechanism and the circuit board to rotate in a reciprocating manner, stores the rotation angle when the circuit board shields light in a dividing manner, and adjusts the inclination state of the rotary clamping mechanism according to the rotation angle so as to correct the horizontal state of the circuit board.
Description
Technical Field
The present invention relates to a level correction apparatus, and more particularly to a level correction apparatus suitable for performing level correction processing on a circuit board in a standing state.
Background
In the current manufacturing technology of the printed circuit board, the printed circuit board is usually processed or transferred in a vertical state by, for example, a suspension method, and before various processing is performed in this state, the printed circuit board must be calibrated in horizontal level to ensure the accuracy of the processing result. However, when the pcb is in a suspended state, the adjustment of the horizontal state of the pcb is usually performed in a complex manner, which is time-consuming and easily affects the process.
Disclosure of Invention
An object of the present invention is to provide a level correction apparatus capable of solving the foregoing problems.
The horizontal correction device is suitable for horizontally correcting a vertical circuit board, and comprises a carrier structure, a first plate edge detection unit, a second plate edge detection unit, a rotary driving unit and a rotary clamping mechanism. The carrier structure includes a mount having a first side and a second side on opposite sides, a first hanger having a first front extension and a first rear extension protruding from the first side and longitudinally spaced from each other, and a second hanger having a second front extension and a second rear extension protruding from the second side of the mount and longitudinally spaced from each other. The first plate edge detection unit comprises a first light emitting device and a first light receiving device capable of receiving light rays emitted by the first light emitting device, one of the first light emitting device and the first light receiving device is arranged at the position corresponding to the first front extension section, and the other of the first light emitting device and the first light receiving device is arranged at the position corresponding to the first rear extension section. The second plate edge detection unit comprises a second light emitting device and a second light receiving device capable of receiving light rays emitted by the second light emitting device, one of the second light emitting device and the second light receiving device is arranged at the position corresponding to the second front extension section, the other of the second light emitting device and the second light receiving device is arranged at the position corresponding to the second rear extension section, and the light rays emitted by the second light emitting device are equal in height to the light rays emitted by the first light emitting device. The rotary driving unit is arranged on the carrier structure and is positioned between the first side and the second side. The rotary clamping mechanism comprises a transverse frame, a first clamping device and a second clamping device, wherein the transverse frame is connected with the rotary driving unit, two ends of the transverse frame protrude out of the first side and the second side respectively, the first clamping device is arranged at one end of the transverse frame corresponding to the first side and extends downwards to be lower than the first light receiving device, and the second clamping device is arranged at one end of the transverse frame corresponding to the second side and extends downwards to be lower than the second light receiving device. The first clamping device and the second clamping device can be used for clamping the top edge of the upright circuit board in a controlled manner, so that the top edge of the circuit board is lower than the light rays emitted by the first light emitting device and the second light emitting device; the rotary driving unit can be controlled to drive the rotary clamping mechanism and the circuit board to rotate in a reciprocating manner, a first rotation angle is stored when the top edge of the circuit board shields the first light emitting device from emitting light, a second rotation angle is stored when the top edge of the circuit board shields the second light emitting device from emitting light, and the inclination state of the rotary clamping mechanism is adjusted according to the first rotation angle and the second rotation angle, so that the horizontal state of the circuit board is corrected.
In some embodiments, the mount has a chassis plate, the first suspension further has a first main body section, a first front loading portion and a first rear loading portion, the first main body section is disposed on a top surface of the first side of the chassis plate and extends longitudinally, the first front extension section and the first rear extension section protrude from front and rear ends of the first main body section in a direction away from the first side, respectively, the first front loading portion is disposed on one end of the first front extension section, which is not connected to the first main body section, and on which one of the first light emitting device and the first light receiving device is disposed, the first rear loading portion is disposed on one end of the first rear extension section, which is not connected to the first main body section, and on which the other of the first light emitting device and the first light receiving device is disposed, the first front loading portion and the first rear loading portion are spaced apart from each other longitudinally; the second suspension frame further comprises a second main body section, a second front loading part and a second rear loading part, wherein the second main body section is arranged on the top surface of the second side of the underframe plate and longitudinally extends, the second front extension part and the second rear extension part are respectively protruded from the front end and the rear end of the second main body section in a direction away from the second side, the second front loading part is arranged on one end of the second front extension part, which is not connected with the second main body section, and is used for one of the second light emitting device and the second light receiving device to be arranged on, the second rear loading part is arranged on one end of the second rear extension part, which is not connected with the second main body section, and is used for the other of the second light emitting device and the second light receiving device to be arranged on, and the second front loading part and the second rear loading part are mutually spaced in the longitudinal direction.
In some embodiments, the first front extension extends from a top edge of the first side to a front bottom edge of the chassis plate and laterally outward; the first rear extension section extends from the top surface edge of the first side to the bottom edge of the rear side surface of the chassis plate and extends outwards and transversely; the second front extension section extends from the top surface edge of the second side to the bottom edge of the front side surface of the chassis plate and extends outwards and transversely; the second rear extension section extends from the top surface edge of the second side to the bottom edge of the rear side surface of the chassis plate and extends outwards and transversely.
In some embodiments, the first front extension section penetrates through the first front loading portion to form a first front light-transmitting opening, the first rear extension section penetrates through the first rear loading portion to form a first rear light-transmitting opening, and the first front light-transmitting opening and the first rear light-transmitting opening are aligned with each other and allow light emitted by the first light-emitting device to pass through; the second front extension section penetrates through the second front loading part to form a second front light-transmitting opening, the second rear extension section penetrates through the second rear loading part to form a second rear light-transmitting opening, and the second front light-transmitting opening and the second rear light-transmitting opening are aligned with each other and are used for light rays emitted by the second light emitting device to pass through.
In some embodiments, the seat frame has a connecting frame plate and a chassis plate connected to a bottom side of the connecting frame plate and protruding forward, the first suspension frame is disposed at a corresponding first side of the chassis plate, the second suspension frame is disposed at a corresponding second side of the chassis plate, the first and second edge detection units are located lower than the chassis plate, the rotation driving unit protrudes forward from a front side of the connecting frame plate and has a rotation axis perpendicular to the front side of the connecting frame plate and spaced apart from the chassis plate, the transverse frame is disposed at a top side of the rotation driving unit and spans across the chassis plate, the first clamping device is farther from the chassis plate than the first edge detection unit, and the second clamping device is farther from the chassis plate than the second edge detection unit.
In some embodiments, the leveling apparatus further comprises a suspension mechanism, a top side of the suspension mechanism adapted to be coupled to a jacking structure, and the suspension mechanism for the mount to be rotatably disposed thereon, enabling controlled adjustment of the levelness of the mount relative to the suspension mechanism.
In some embodiments, the rotary clamping mechanism further comprises a sliding rail disposed at one end of the cross frame, the sliding rail being coupled to one of the first clamping device and the second clamping device and being capable of moving the corresponding one of the first clamping device and the second clamping device along the sliding rail in the extending direction of the cross frame.
In some embodiments, the first edge detection unit and the second edge detection unit are symmetrically disposed with respect to the rotation driving unit, the central position of the cross frame is connected to the rotation driving unit, it is defined that when the top edge of the circuit board blocks the light emitted by the first light emitting device, the rotation angle of the rotation driving unit is a first rotation angle, and it is defined that when the top edge of the circuit board blocks the light emitted by the second light emitting device, the rotation angle of the second light receiving device does not receive the corresponding light is a second rotation angle, and the inclination state of the rotation clamping mechanism is adjusted by driving the rotation clamping mechanism from the state that the rotation angle is zero, and one side corresponding to the smaller one of the first rotation angle and the second rotation angle is driven by the rotation driving unit to rotate downwards until the rotation angle reaches half of the absolute value of the difference value between the first rotation angle and the second rotation angle.
The beneficial effects of the invention are that: the horizontal correction device can detect corresponding rotation angles stored when the top edge of the circuit board shields the first light emitting device and the second light emitting device from light in a divided mode after the rotary clamping mechanism and the circuit board are driven by the rotary driving unit to rotate in a reciprocating mode, and can adjust the inclination state of the rotary clamping mechanism according to the rotation angles so as to adjust the horizontal state of the circuit board.
Drawings
FIG. 1 is a front perspective view illustrating one embodiment of a level correction apparatus of the present invention;
fig. 2 is a perspective rear view of the embodiment;
FIG. 3 is a side view illustrating an implementation of this embodiment for horizontal calibration of a circuit board;
Fig. 4 to 6 are front views, respectively, illustrating a process of performing horizontal correction on the circuit board according to the embodiment.
Detailed Description
The present invention will be described in detail with reference to the accompanying drawings and examples.
Referring to fig. 1 to 3, an embodiment of a horizontal calibration apparatus 100 according to the present invention is shown, wherein the horizontal calibration apparatus 100 is adapted to be connected to and suspended from a supporting structure as shown in fig. 3, so as to perform horizontal calibration on a vertically upright circuit board 200, thereby providing a required processing. The jacking structure may be a specific structure of any mechanical device capable of hanging and placing the horizontal correction device 100, and may also be a top wall in space, etc., and is not limited to a specific application.
Specifically, the horizontal calibration apparatus 100 includes a suspension mechanism 1, a carrier structure 2, a first edge detection unit 3, a second edge detection unit 4, a rotation driving unit 5, and a rotation clamping mechanism 6, the embodiments of which will be described later.
The suspension mechanism 1 in this embodiment has a vertical column structure, the top side of which is suitable for being connected with the top support structure, and the carrier structure 2 can be rotatably mounted on the front side of the suspension mechanism, so that the carrier structure 2 can be controlled to adjust the levelness relative to the suspension mechanism 1.
The carrier structure 2 is a main carrying structure of the horizontal correction device 100, and includes a seat frame 21, a first suspension frame 22, and a second suspension frame 23. The seat frame 21 has a coupling frame plate 211 and a bottom frame plate 212, and the coupling frame plate 211 has a substantially vertical square plate structure and is controllably and pivotally coupled to the suspension mechanism 1. The chassis plate 212 is connected to the bottom side of the link frame plate 211 and protrudes forward, and is integrally formed in a laterally extending square plate structure, and has a first side 213 and a second side 214 located at opposite sides. In the drawings of the present embodiment, if the front side of the horizontal correction device 100 is the lower left side in fig. 1, the first side 213 and the second side 214 can be understood as the left side and the right side.
The first hanger 22 is mainly used for loading the first edge detection unit 3, and has a first main body section 221, a first front extension section 222, a first front loading portion 223, a first rear extension section 224, and a first rear loading portion 225. The first body section 221 is disposed on the top surface of the first side 213 of the chassis plate 212 and extends longitudinally. The first front extension 222 and the first rear extension 224 respectively protrude from the front and rear ends of the first main body 221 at a distance from each other in a longitudinal direction away from the first side 213, more specifically, the first front extension 222 extends from the top edge of the first side 213 toward the bottom edge of the front side of the chassis plate 212 and extends laterally outward (i.e., away from the chassis plate 212), and the first rear extension 224 extends from the top edge of the first side 213 toward the bottom edge of the rear side of the chassis plate 212 and extends laterally outward (i.e., away from the chassis plate 212). The first front loading part 223 is disposed at one end of the first front extension 222, which is not connected to the first main body section 221, the first rear loading part 225 is disposed at one end of the first rear extension 224, which is not connected to the first main body section 221, and the first front loading part 223 and the first rear loading part 225 are longitudinally spaced apart from each other and aligned with each other, for loading the constituent members of the first edge detection unit 3.
The second suspension 23 is disposed symmetrically to the first suspension 22, and has a second main body 231, a second front extension 232, a second front loading portion 233, a second rear extension 234, and a second rear loading portion 235. The second main body section 231 is disposed on the top surface of the second side 214 of the chassis plate 212 and extends longitudinally, and the second front extension section 232 and the second rear extension section 234 respectively protrude from the front and rear ends of the second main body section 231 at intervals in a direction away from the second side 214, more specifically, the second front extension section 232 extends from the top edge of the second side 214 to the bottom edge of the front side of the chassis plate 212 and extends laterally outwards (i.e. away from the chassis plate 212); the second rear extension 234 extends from the top edge of the second side 214 toward the bottom edge of the rear side of the chassis plate 212 and extends laterally outward (i.e., away from the chassis plate 212). The second front loading part 233 is disposed at one end of the second front extension part 232, which is not connected to the second main body part 231, and the second rear loading part 235 is disposed at one end of the second rear extension part 234, which is not connected to the second main body part 231. The second front loading part 233 and the second rear loading part 235 are longitudinally spaced apart from and aligned with each other for loading the constituent members of the second edge detection unit 4.
Referring to fig. 1,2 and 4, the first edge detection unit 3 includes a first light emitting device 31 and a first light receiving device 32 capable of receiving the light emitted from the first light emitting device 31, and both are only schematically shown in the drawings and not in detail. One of the first light emitting device 31 and the first light receiving device 32 is disposed at the first front loading portion 223 corresponding to the first front extension 222, and the other of the first light emitting device 31 and the first light receiving device 32 is disposed at the first rear loading portion 225 corresponding to the first rear extension 224, both of which are located lower than the chassis plate 212. Since the top edge of the circuit board 200 is generally disposed adjacent to and lower than the light emitted from the first light emitting device 31 in the initial state as shown in fig. 4 when the circuit board 200 is subjected to the horizontal state correction, the horizontal correction apparatus 100 can determine the horizontal height of the top edge of the circuit board 200 at the position corresponding to the first board edge detection unit 3 by whether the first light receiving device 32 receives the light emitted from the first light emitting device 31. Further, in the present embodiment, the first light emitting device 31 is a light emitter including an optical fiber device, and the first light receiving device 32 is a light receiver. The first light emitting device 31 is mounted on the first rear loading portion 225 with its light emitting end facing the first front loading portion 223, and the first light receiving device 32 is mounted on the first front loading portion 223 with its light receiving end facing the first rear loading portion 225. The first front extension 222 is penetrated and formed with a first front light-transmitting opening 226 corresponding to the first front loading portion 223, the first rear extension 224 is penetrated and formed with a first rear light-transmitting opening 227 corresponding to the first rear loading portion 225, and the first front light-transmitting opening 226 and the first rear light-transmitting opening 227 are aligned with each other and can be penetrated by the light emitted by the first light-emitting device 31, so as to perform the edge height detection procedure of the circuit board 200. In addition, according to practical needs, the first light emitting device 31 and the first light receiving device 32 may be changed in mounting positions, that is, the first light emitting device 31 may be mounted at the first front loading portion 223, and the first light receiving device 32 may be mounted at the first rear loading portion 225, so that the first light emitting device 31 may emit light for detecting the edge backward instead, so that the detecting function of the first edge detecting unit 3 may also be performed.
Referring to fig. 1 to 4, the second edge detection unit 4 is symmetrically disposed with respect to the rotation driving unit 5 with respect to the first edge detection unit 3, and performs a similar function, and is also simply drawn as a schematic drawing in the figure. The second edge detection unit 4 specifically includes a second light emitting device 41 and a second light receiving device 42 capable of receiving light (indicated by a transverse dotted line indicating two left arrows in fig. 3, for example) emitted from the second light emitting device 41. One of the second light emitting device 41 and the second light receiving device 42 is disposed at the second front loading portion 233 corresponding to the second front extension 232, the other of the second light emitting device 41 and the second light receiving device 42 is disposed at the second rear loading portion 235 corresponding to the second rear extension 234, the positions of the second light emitting device 41 and the second light receiving device 42 are lower than the chassis plate 212, and the light emitted by the second light emitting device 41 is equal to the light emitted by the first light emitting device 31. In this embodiment, the second light emitting device 41 is installed at the second rear loading portion 235 and is a light emitter including an optical fiber device, and the second light receiving device 42 is installed at the second front loading portion 233 and is a light receiver. The second front extension 232 is penetrated and formed with a second front light-transmitting opening 236 corresponding to the second front loading portion 233, the second rear extension 234 is penetrated and formed with a second rear light-transmitting opening 237 corresponding to the second rear loading portion 235, and the second front light-transmitting opening 236 and the second rear light-transmitting opening 237 are aligned with each other and can be penetrated by the light emitted by the second light-emitting device 41. Accordingly, the level correction apparatus 100 can detect the level of the circuit board 200 corresponding to the top edge at the second edge detection unit 4 by whether the second light receiving device 42 receives the light emitted from the second light emitting device 41. Of course, the second light emitting device 41 and the second light receiving device 42 may be positioned at the same location, so that the edge detection function can be also realized.
Referring to fig. 1,3,5 and 6, the rotary driving unit 5 includes, for example, a servo motor protruding forward from the front side of the coupling frame plate 211, and having a rotation axis perpendicular to the front side of the coupling frame plate 211 and spaced from the chassis plate 212 between the first side 213 and the second side 214. In the horizontal calibration process of the circuit board 200, the rotary driving unit 5 can be controlled to drive the rotary clamping mechanism 6 and the circuit board 200 to rotate reciprocally as shown in fig. 5 and 6, so as to execute the horizontal calibration process of the circuit board 200.
Referring to fig. 1 to 4, the rotary clamping mechanism 6 includes a cross frame 61, a sliding rail 62, a first clamping device 63 and a second clamping device 64. The center of the cross frame 61 is connected to the top side of the rotary driving unit 5 and spans the chassis plate 212, so that two ends protrude from the first side 213 and the second side 214, respectively. The slide rail 62 is connected to one of the first clamping device 63 and the second clamping device 64, and enables the corresponding one of the first clamping device 63 and the second clamping device 64 to move along the slide rail 62 in the extending direction of the cross frame 61. In this embodiment, the sliding rail 62 is disposed at one end of the transverse frame 61 corresponding to the second side 214 and is located at the bottom side of the transverse frame 61, and is connected to the second clamping device 64, so that the second clamping device 64 can adjust a position along the sliding rail 62, thereby adjusting a separation distance between the second clamping device 64 and the first clamping device 63. However, according to practical needs, the rotary clamping mechanism 6 may omit the sliding rail 62, or may also dispose the sliding rail 62 at a position corresponding to the first clamping device 63, and the sliding rail 62 may also be disposed at the positions of the second clamping device 64 and the first clamping device 63, which are all implemented in this embodiment. The first clamping device 63 is disposed at one end of the transverse frame 61 corresponding to the first side 213 and extends downward to a position lower than the first light receiving device 32, which is farther from the chassis plate 212 than the first plate edge detecting unit 3, and has a first clamping jaw 631, and the first clamping jaw 631 can controllably clamp the top edge of the circuit board 200. The second clamping device 64 is disposed at one end of the transverse frame 61 corresponding to the second side 214 and extends downward to a position lower than the second light receiving device 42, and is further away from the chassis board 212 than the second board edge detecting unit 4, and has a second clamping jaw 641, and the second clamping jaw 641 can be controlled to clamp the board edge at the other side of the circuit board 200, so as to perform a horizontal calibration procedure of the circuit board 200.
Referring to fig. 1, 3 to 6, the following describes the execution of the horizontal correction of the circuit board 200 by the horizontal correction device 100.
Referring to fig. 1,3 and 4, first, the circuit board 200 in a standing state may be transferred to the bottom side of the horizontal calibration apparatus 100 by a device (not shown) such as a robot arm, the first clamping device 63 and the second clamping device 64 jointly clamp the top edge of the circuit board 200 in a standing state, at this time, the first light emitting device 31 and the second light emitting device 41 are in an operating state and respectively emit light rays, the first light receiving device 32 and the second light receiving device 42 respectively receive light rays, the top edge of the circuit board 200 is lower than the light rays emitted by the first light emitting device 31 and the second light emitting device 41, and the rotation driving unit 5 is in a not-yet-operated state. In this state, the circuit board 200 is not always held horizontally by the first holding device 63 and the second holding device 64, and thus it is not suitable for the subsequent processing procedure, and therefore it is necessary to perform horizontal correction first.
Referring to fig. 5 and 6, when the horizontal correction processing of the circuit board 200 is to be performed, a control unit, such as a control computer or a control chip, not shown in the drawings sends an instruction to enable the rotation driving unit 5 to control the rotation clamping mechanism 6 and the circuit board 200 to reciprocally rotate, and stores corresponding rotation angles respectively when the top edge of the circuit board 200 shields the first light emitting device 31 and the second light emitting device 41 from emitting light, so as to adjust the inclination state of the rotation clamping mechanism 6 according to the rotation angles, thereby correcting the horizontal state of the circuit board 200.
Specifically, it is defined that the top edge of the circuit board 200 blocks the light emitted from the first light emitting device 31 as shown in fig. 6 so that the rotation angle of the rotation driving unit 5 is a first rotation angle θ1 when the first light receiving device 32 does not receive the corresponding light, and that the top edge of the circuit board 200 blocks the light emitted from the second light emitting device 41 as shown in fig. 5 so that the rotation angle of the rotation driving unit 5 is a second rotation angle θ2 when the second light receiving device 42 does not receive the corresponding light. The inclination state of the rotary clamping mechanism 6 and the horizontal state of the circuit board 200 are adjusted by driving the rotary clamping mechanism 6 by the rotary driving unit 5 from the state that the rotation angle is zero as shown in fig. 4, for example, in fig. 5, the rotary driving unit 5 drives the rotary clamping mechanism 6 and the circuit board 200 to rotate in the counterclockwise direction of the drawing, so that the part of the circuit board 200 corresponding to the second side 214 moves gradually upwards and the part corresponding to the first side 213 moves gradually downwards until the top edge of the circuit board 200 corresponding to the second side 214 just blocks the light emitted by the second light emitting device 41. At this time, the second light receiving device 42 fails to receive the light emitted from the second light emitting device 41, so that the level correction apparatus 100 determines that the top edge of the circuit board 200 corresponding to the second side 214 has reached a predetermined level, and stores the rotation angle of the rotation driving unit 5 from zero (as shown in fig. 4) to the state of fig. 5 as the second rotation angle θ2 (for example, 2 degrees). Subsequently, the rotary driving unit 5 drives the rotary holding mechanism 6 to rotate reversely together with the circuit board 200, for example, to rotate clockwise in the drawing from the state of fig. 5 to 6, so that the portion of the circuit board 200 corresponding to the first side 213 gradually moves upward and the portion corresponding to the second side 214 gradually moves downward until the top edge of the circuit board 200 corresponding to the first side 213 just blocks the light emitted from the first light emitting device 31 as in fig. 6, at which time the first light receiving device 32 fails to receive the light emitted from the first light emitting device 31, and thus the level correction apparatus 100 determines that the top edge of the circuit board 200 has reached a predetermined level, and stores the difference value when the rotation angle of the rotary driving unit 5 is 0 compared with that in fig. 4 as the first rotation angle θ1 (for example, 6 degrees). According to the above measurement of the first rotation angle θ1 and the second rotation angle θ2, the subsequent correction of the horizontal state of the circuit board 200 can be performed, as follows.
In this embodiment, since the first edge detection unit 3 and the second edge detection unit 4 are symmetrically disposed on both sides of the rotation driving unit 5, and the horizontal correction device 100 is integrally configured in a left-right symmetrical manner, according to the geometric principle, the rotation angle θ3 required for correcting the circuit board 200 from the state of fig. 4 to the horizontal state is half the absolute value of the difference between the first rotation angle θ1 and the second rotation angle θ2, as shown in the following formula:
According to the horizontal state of the circuit board 200, the side of the circuit board 200 corresponding to the smaller one of the first rotation angle θ1 and the second rotation angle θ2 measured by rotation has a higher horizontal height than the side of the circuit board corresponding to the larger one, for example, the first rotation angle θ1 is 6 degrees and the second rotation angle θ2 is 2 degrees in the foregoing example, which represents that in the non-rotated state of the circuit board 200 in fig. 4, the top edge of the circuit board 200 corresponding to the second side 214 is higher than the top edge of the circuit board corresponding to the first side 213, that is, in this example, the top edge of the circuit board 200 in the non-rotated, non-corrected state presents a tilting trend (not represented in the figure) from bottom left to top. Therefore, the rotation driving unit 5 may rotate the rotation clamping mechanism 6 downward from the state that the rotation angle is zero, from the side corresponding to the smaller one of the first rotation angle θ1 and the second rotation angle θ2 (the side corresponding to the second side 214 in this example) to the side corresponding to the smaller one of the first rotation angle θ1 and the second rotation angle θ2 (i.e. the side corresponding to the smaller one of the second rotation angle θ2), until the rotation angle reaches half of the absolute value of the difference between the first rotation angle θ1 and the second rotation angle θ2 (i.e. θ3 in this example, 2 degrees), that is, the horizontal correction of the circuit board 200 is completed, so that the circuit board 200 may perform the subsequent process or transport under the condition that the horizontal state is ensured. Therefore, the processing procedure of the circuit board 200 for performing the horizontal correction is fast, precise and effective by using the light emitted by the first light emitting device 31 and the second light emitting device 41 as the height basis of the horizontal correction. When the heights of the first light emitting device 31 and the second light emitting device 41 need to be adjusted, the relative heights of the first light emitting device 31 and the second light emitting device 41 can be adjusted correspondingly by pivoting the carrier structure 2, the rotary clamping mechanism 6 and other structures relative to the hanging mechanism 1, so that the lights emitted by the first light emitting device 31 and the second light emitting device 41 can be used as the height basis for horizontal correction.
It should be noted that, although the above description is to detect the second rotation angle θ2 and then detect the first rotation angle θ1, the above description may be adjusted to detect the first rotation angle θ1 and then detect the second rotation angle θ2 as needed, that is, different detection sequences can accurately perform the horizontal correction. In addition, in the horizontal correction process, the circuit board 200 is rotated downward from the side corresponding to the smaller one of the first rotation angle θ1 and the second rotation angle θ2 after the rotation angle θ3 is known, however, the embodiment is not limited to the specific embodiment, and the circuit board 200 may be rotated upward from the side corresponding to the larger one of the first rotation angle θ1 and the second rotation angle θ2 on the premise that the top edge of the circuit board 200 is in a linear state.
In summary, the horizontal correction device 100 of the present invention can drive the rotary clamping mechanism 6 and the circuit board 200 to reciprocally rotate through the rotary driving unit 5, and measure the first rotation angle θ1 and the second rotation angle θ2 through the first edge detection unit 3 and the second edge detection unit 4, so as to perform horizontal correction of the circuit board 200, and the process is fast, effective and accurate, and the process yield and efficiency can be greatly improved, so that the purpose of the present invention can be truly achieved.
Claims (8)
1. A level correction apparatus adapted to perform level correction of a circuit board in a standing state, comprising:
A carrier structure comprising a mount having first and second sides located on opposite sides, a first hanger having first front and rear longitudinally spaced apart extensions protruding from the first side, and a second hanger having second front and rear longitudinally spaced apart extensions protruding from the second side of the mount;
the first plate edge detection unit comprises a first light emitting device and a first light receiving device capable of receiving light rays emitted by the first light emitting device, wherein one of the first light emitting device and the first light receiving device is arranged at a position corresponding to the first front extension section, and the other of the first light emitting device and the first light receiving device is arranged at a position corresponding to the first rear extension section;
the second plate edge detection unit comprises a second light emitting device and a second light receiving device capable of receiving light rays emitted by the second light emitting device, wherein one of the second light emitting device and the second light receiving device is arranged at a position corresponding to the second front extension section, the other of the second light emitting device and the second light receiving device is arranged at a position corresponding to the second rear extension section, and the light rays emitted by the second light emitting device are equal in height to the light rays emitted by the first light emitting device;
the rotary driving unit is arranged on the carrier structure and is positioned between the first side and the second side; and
The rotary clamping mechanism comprises a transverse frame, a first clamping device and a second clamping device, wherein the transverse frame is connected with the rotary driving unit, the two ends of the transverse frame respectively protrude out of the first side and the second side, the first clamping device is arranged at one end of the transverse frame corresponding to the first side and downwards extends to a position lower than the first light receiving device, the second clamping device is arranged at one end of the transverse frame corresponding to the second side and downwards extends to a position lower than the second light receiving device,
The first clamping device and the second clamping device can be used for clamping the top edge of the upright circuit board in a controlled manner, so that the top edge of the circuit board is lower than the light rays emitted by the first light emitting device and the second light emitting device; the rotary driving unit can be controlled to drive the rotary clamping mechanism and the circuit board to rotate in a reciprocating manner, a first rotation angle is stored when the top edge of the circuit board shields the first light emitting device from emitting light, a second rotation angle is stored when the top edge of the circuit board shields the second light emitting device from emitting light, and the inclination state of the rotary clamping mechanism is adjusted according to the first rotation angle and the second rotation angle, so that the horizontal state of the circuit board is corrected.
2. The level correction apparatus according to claim 1, wherein: the first suspension bracket is provided with a chassis plate, the first suspension bracket is also provided with a first main body section, a first front loading part and a first rear loading part, the first main body section is arranged on the top surface of the first side of the chassis plate and longitudinally extends, the first front extension section and the first rear extension section respectively protrude from the front end and the rear end of the first main body section in a direction away from the first side, the first front loading part is arranged at one end of the first front extension section, which is not connected with the first main body section, and is provided with one of the first light emitting device and the first light receiving device, the first rear loading part is arranged at one end of the first rear extension section, which is not connected with the first main body section, and is provided with the other of the first light emitting device and the first light receiving device, and the first front loading part and the first rear loading part are longitudinally mutually spaced; the second suspension frame further comprises a second main body section, a second front loading part and a second rear loading part, wherein the second main body section is arranged on the top surface of the second side of the underframe plate and longitudinally extends, the second front extension part and the second rear extension part are respectively protruded from the front end and the rear end of the second main body section in a direction away from the second side, the second front loading part is arranged on one end of the second front extension part, which is not connected with the second main body section, and is used for one of the second light emitting device and the second light receiving device to be arranged on, the second rear loading part is arranged on one end of the second rear extension part, which is not connected with the second main body section, and is used for the other of the second light emitting device and the second light receiving device to be arranged on, and the second front loading part and the second rear loading part are mutually spaced in the longitudinal direction.
3. The level correction apparatus according to claim 2, characterized in that: the first front extension section extends from the top surface edge of the first side to the bottom edge of the front side surface of the chassis plate and extends outwards and transversely; the first rear extension section extends from the top surface edge of the first side to the bottom edge of the rear side surface of the chassis plate and extends outwards and transversely; the second front extension section extends from the top surface edge of the second side to the bottom edge of the front side surface of the chassis plate and extends outwards and transversely; the second rear extension section extends from the top surface edge of the second side to the bottom edge of the rear side surface of the chassis plate and extends outwards and transversely.
4. The level correction apparatus according to claim 2, characterized in that: the first front extension section penetrates through the first front loading part to form a first front light-transmitting opening, the first rear extension section penetrates through the first rear loading part to form a first rear light-transmitting opening, and the first front light-transmitting opening and the first rear light-transmitting opening are aligned with each other and are used for allowing light emitted by the first light emitting device to pass through; the second front extension section penetrates through the second front loading part to form a second front light-transmitting opening, the second rear extension section penetrates through the second rear loading part to form a second rear light-transmitting opening, and the second front light-transmitting opening and the second rear light-transmitting opening are aligned with each other and are used for light rays emitted by the second light emitting device to pass through.
5. The level correction apparatus according to claim 1, wherein: the seat frame is provided with a connecting frame plate and a bottom frame plate which is connected with the bottom side of the connecting frame plate and protrudes forwards, the first hanging frame is arranged at the corresponding first side of the bottom frame plate, the second hanging frame is arranged at the corresponding second side of the bottom frame plate, the positions of the first plate edge detection unit and the second plate edge detection unit are lower than those of the bottom frame plate, the front side of the connecting frame plate protrudes forwards, the rotation axis of the rotation driving unit is perpendicular to the front side of the connecting frame plate and is spaced from the bottom frame plate, the transverse frame is arranged at the top side of the rotation driving unit and spans across the bottom frame plate, the first clamping device is far away from the bottom frame plate compared with the first plate edge detection unit, and the second clamping device is far away from the bottom frame plate compared with the second plate edge detection unit.
6. The level correction apparatus according to claim 1, wherein: the leveling device further comprises a suspension mechanism, wherein the top side of the suspension mechanism is suitable for being connected with a jacking structure, and the suspension mechanism is rotatably arranged on the seat frame, so that the seat frame can be controlled to adjust levelness relative to the suspension mechanism.
7. The level correction apparatus according to claim 1, wherein: the rotary clamping mechanism further comprises a sliding rail arranged at one end of the transverse frame, the sliding rail is connected with one of the first clamping device and the second clamping device, and the corresponding one of the first clamping device and the second clamping device can move along the sliding rail in the extending direction of the transverse frame.
8. The level correction apparatus according to claim 1, wherein: the first board edge detection unit and the second board edge detection unit are symmetrically arranged relative to the rotation driving unit, the center position of the transverse frame is connected with the rotation driving unit, the rotation angle of the rotation driving unit is defined as the first rotation angle when the top edge of the circuit board shields the light emitted by the first light emitting device and the first light receiving device does not receive the corresponding light, the rotation angle of the rotation driving unit is defined as the second rotation angle when the top edge of the circuit board shields the light emitted by the second light emitting device and the second light receiving device does not receive the corresponding light, and the inclination state of the rotation clamping mechanism is adjusted by driving the rotation clamping mechanism downwards from the state that the rotation angle is zero by the rotation driving unit until the rotation angle reaches half of the absolute value of the difference value between the first rotation angle and the second rotation angle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910469248.5A CN112020224B (en) | 2019-05-31 | 2019-05-31 | Level correction apparatus |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910469248.5A CN112020224B (en) | 2019-05-31 | 2019-05-31 | Level correction apparatus |
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| CN112020224B true CN112020224B (en) | 2024-06-18 |
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| CN113342067A (en) * | 2021-06-30 | 2021-09-03 | 广东艾檬电子科技有限公司 | Correction method, correction device and correction system |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN210042428U (en) * | 2019-05-31 | 2020-02-07 | 群翊工业股份有限公司 | Level correction apparatus |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| GB8923641D0 (en) * | 1989-10-20 | 1989-12-06 | Blakell Systems Limited | Printed circuit board assembly apparatus |
| JPH08139499A (en) * | 1994-11-11 | 1996-05-31 | Yamaha Motor Co Ltd | Recognition of cylindrical component |
| US6195165B1 (en) * | 1998-08-04 | 2001-02-27 | Cyberoptics Corporation | Enhanced sensor |
| CN2919192Y (en) * | 2005-10-13 | 2007-07-04 | 邓野 | Self-regulation track level bar |
| JP5831315B2 (en) * | 2012-03-19 | 2015-12-09 | 富士通株式会社 | Rail member mounting jig |
| WO2014106074A1 (en) * | 2012-12-29 | 2014-07-03 | Robert Bosch Gmbh | Rotary laser level with laser detection |
| CN107580413A (en) * | 2016-07-05 | 2018-01-12 | 翔庆精密工业有限公司 | Plateau levels automatic correction device |
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| CN210042428U (en) * | 2019-05-31 | 2020-02-07 | 群翊工业股份有限公司 | Level correction apparatus |
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