CN210042428U

CN210042428U - Level correction apparatus

Info

Publication number: CN210042428U
Application number: CN201920817211.2U
Authority: CN
Inventors: 陈安顺
Original assignee: QUNYI INDUSTRY Co Ltd
Current assignee: QUNYI INDUSTRY Co Ltd
Priority date: 2019-05-31
Filing date: 2019-05-31
Publication date: 2020-02-07
Anticipated expiration: 2029-05-31

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 frame 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 frame and comprises a second light emitting device and a second light receiving device; the rotary driving unit is arranged on the carrier frame structure; the rotary clamping mechanism comprises a cross 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 cross 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 rotation driving unit can drive the rotation clamping mechanism and the circuit board to rotate in a reciprocating mode, the rotation angle is stored when the circuit board shields light for multiple times, and the inclination state of the rotation clamping mechanism is adjusted according to the rotation angle so as to correct the horizontal state of the circuit board.

Description

Level correction apparatus

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 having a vertical shape.

Background

In the current manufacturing technology of printed circuit boards, the printed circuit boards are usually processed or transferred in a vertically erected state by, for example, a suspension method, and before various processes are performed in this state, the printed circuit boards must be corrected in a horizontal level to ensure the accuracy of the processing result. However, when the pcb is suspended, the adjustment of the horizontal position of the pcb is usually performed in a complicated manner, which is time consuming and can easily affect the manufacturing process.

Disclosure of Invention

An object of the utility model is to provide a can solve the horizontal correction equipment of aforementioned problem.

The utility model discloses horizontal correction equipment is applicable to and carries out horizontal correction to the circuit board of erectting the form to contain carrier structure, first board reason detecting element, second board reason detecting element, rotation driving unit and rotatory fixture. The carrier structure includes a mount having first and second sides on opposite sides, a first suspension having first and second longitudinally spaced apart front and rear extensions projecting from the first side, and a second suspension having second longitudinally spaced apart front and rear extensions projecting 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, 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 rotation driving unit is arranged on the carrier frame structure and is positioned between the first side and the second side. The rotary clamping mechanism comprises a cross frame, a first clamping device and a second clamping device, the cross frame is connected with the rotary driving unit, two ends of the cross frame protrude out of the first side and the second side respectively, the first clamping device is arranged at one end, corresponding to the first side, of the cross frame and extends downwards to be lower than the first light receiving device, and the second clamping device is arranged at one end, corresponding to the second side, of the cross frame and extends downwards to be lower than the second light receiving device. The first clamping device and the second clamping device can be controlled to clamp the top edge of the vertical circuit board, so that the top edge of the circuit board is lower than light rays emitted by the first light emitting device and the second light emitting device; the rotation driving unit can be controlled to drive the rotation clamping mechanism and the circuit board to rotate in a reciprocating mode, a first rotation angle is stored when the top edge of the circuit board shields the light emitted by the first light emitting device, a second rotation angle is stored when the top edge of the circuit board shields the light emitted by the second light emitting device, and the inclination state of the rotation 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 seat frame has a bottom frame plate, the first suspension frame further has 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 bottom frame plate and longitudinally extends, the first front extension section and the first rear extension section respectively extend from the front end and the rear end of the first main body section to the direction far 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 one of the first light emitting device and the first light receiving device is arranged on the first front loading part, 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 the other end of the first light emitting device and the first light receiving device is arranged on the first rear extension section, and the first front loading part and the first rear loading part are longitudinally spaced from each other; the second suspension rack further comprises a second main body section, a second front loading part and a second rear loading part, the second main body section is arranged on the top surface of the second side of the chassis plate and extends longitudinally, the second front extension section and the second rear extension section respectively protrude from the front end and the rear end of the second main body section in the direction away from the second side, the second front loading part is arranged at one end of the second front extension section, which is not connected with the second main body section, and one of the second light emitting device and the second light receiving device is arranged on the second front loading part, the second rear loading part is disposed at one end of the second rear extension section, which is not connected to the second main body section, and on which the other of the second light emitting device and the second light receiving device is disposed, and the second front loading part and the second rear loading part are longitudinally spaced from each other.

In some embodiments, the first front extension section extends from the top edge of the first side to the bottom edge of the front side of the chassis plate and extends 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 transversely extends outwards; 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 bottom frame plate and transversely extends outwards; the second rear extension section extends from the top edge of the second side to the bottom edge of the rear side of the chassis plate and extends outwards and transversely.

In some embodiments, 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 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 allow light emitted by the second light emitting device to pass through.

In some embodiments, the seat frame has a connecting frame plate and a bottom frame plate connected to a bottom side of the connecting frame plate and protruding forward, the first suspension bracket is disposed at a position corresponding to the first side of the bottom frame plate, the second suspension bracket is disposed at a position corresponding to the second side of the bottom frame plate, the first plate edge detecting unit and the second plate edge detecting unit are located lower than the bottom frame plate, the rotary 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 bottom frame plate, the cross frame is disposed at a top side of the rotary driving unit and spans across the bottom frame plate, the first clamping device is farther from the bottom frame plate than the first plate edge detecting unit, and the second clamping device is farther from the bottom frame plate than the second plate edge detecting unit.

In some embodiments, the level correcting device further comprises a suspension mechanism having a top side adapted to be coupled to a top support structure and on which the seat frame is rotatably disposed to enable controlled adjustment of the level of the seat frame relative to the suspension mechanism.

In some embodiments, the rotating clamping mechanism further includes a slide rail disposed at one end of the cross frame, the slide rail is connected to one of the first clamping device and the second clamping device and can allow the corresponding one of the first clamping device and the second clamping device to move along the slide rail in an extending direction of the cross frame.

In some embodiments, the first plate edge detecting unit and the second plate edge detecting unit are symmetrically disposed with respect to the rotation driving unit, and the rotation driving unit is connected to a central position of the cross frame.

The utility model discloses a profitable effect lies in: the horizontal correction equipment can drive the rotary clamping mechanism and the circuit board to rotate back and forth through the rotary driving unit, detect corresponding rotation angles respectively stored when the top edge of the circuit board shields the light emitted by the first light emitting device and the second light emitting device in a grading manner, and adjust the inclined 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 perspective front view illustrating one embodiment of the leveling device of the present invention;

FIG. 2 is a perspective rear view of the embodiment;

FIG. 3 is a side view illustrating an implementation of the embodiment for level alignment 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 the horizontal calibration apparatus 100 of the present invention is illustrated, wherein the horizontal calibration apparatus 100 is adapted to be connected to and suspended from a top support structure as shown in fig. 3, so as to horizontally calibrate a vertically erected circuit board 200, thereby providing the requirements for manufacturing processes. The supporting structure may be any specific structure of any mechanical device, which can be used for hanging and placing the horizontal correction device 100, and may also be a top wall in space, and the like, and is not limited to a specific application.

Specifically, the leveling apparatus 100 includes a suspension mechanism 1, a carriage structure 2, a first plate edge detecting unit 3, a second plate edge detecting unit 4, a rotation driving unit 5, and a rotation clamping mechanism 6, which are described in the following embodiments.

The suspension mechanism 1 is a vertical column structure in this embodiment, and the top side of the suspension mechanism is suitable for connecting with the top support structure, and the carriage structure 2 can be rotatably mounted on the front side surface of the suspension mechanism, so that the carriage structure 2 can be controlled to adjust the levelness of the suspension mechanism 1.

The carrier structure 2 is a main carrying structure of the horizontal correction apparatus 100, and includes a seat frame 21, a first suspension frame 22, and a second suspension frame 23. The seat frame 21 has a connecting frame plate 211 and a bottom frame plate 212, the connecting frame plate 211 is a square plate structure standing vertically and is controlled to be pivotally connected to the suspension mechanism 1. The chassis plate 212 is connected to the bottom side of the coupling chassis plate 211 and protrudes forward, and has a first side 213 and a second side 214 on opposite sides. In the drawings of the present embodiment, if the lower left side in fig. 1 is the front side of the horizontal correction apparatus 100, the first side 213 and the second side 214 can be understood as the left side and the right side.

The first suspension frame 22 is mainly used for loading the first plate edge detecting 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 main body section 221 is disposed on a top surface of the first side 213 of the chassis plate 212 and extends longitudinally. The first front extension section 222 and the first rear extension section 224 respectively longitudinally extend from the front end and the rear end of the first main body section 221 at intervals and protrude in a direction away from the first side 213, more specifically, the first front extension section 222 extends from the top edge of the first side 213 to the bottom edge of the front side of the chassis plate 212 and laterally extends outward (i.e., in a direction away from the chassis plate 212), and the first rear extension section 224 extends from the top edge of the first side 213 to the bottom edge of the rear side of the chassis plate 212 and laterally extends outward (i.e., in a direction away from the chassis plate 212). The first front loading part 223 is disposed at an end of the first front extension section 222 not connected to the first main body section 221, the first rear loading part 225 is disposed at an end of the first rear extension section 224 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 and aligned with each other for loading the components of the first plate edge detecting unit 3.

The second suspension frame 23 is disposed symmetrically to the first suspension frame 22, and has a second main body section 231, a second front extension section 232, a second front loading portion 233, a second rear extension section 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, the second front extension section 232 and the second rear extension section 234 respectively extend from the front end and the rear end of the second main body section 231 longitudinally and mutually spaced and protrude in a direction away from the second side 214, and more specifically, the second front extension section 232 extends from the top surface edge of the second side 214 to the bottom edge of the front side surface of the chassis plate 212 and extends laterally outward (i.e., in a direction away from the chassis plate 212); the second rear extension 234 extends from the top edge of the second side 214 to 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 an end of the second front extension 232 not connected to the second body segment 231, and the second rear loading part 235 is disposed at an end of the second rear extension 234 not connected to the second body segment 231. The second front loading part 233 and the second rear loading part 235 are longitudinally spaced apart from and aligned with each other, and are used for loading the constituent elements of the second plate edge detecting unit 4.

Referring to fig. 1, 2 and 4, the first plate edge detecting unit 3 includes a first light emitting device 31 and a first light receiving device 32 capable of receiving light emitted from the first light emitting device 31, which are only schematically illustrated and not described 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 lower than the chassis plate 212. Since the top edge of the circuit board 200 is disposed adjacent to and below the light emitted from the first light emitting device 31 in the initial state as shown in fig. 4 when the horizontal state correction is performed on the circuit board 200, the horizontal correction apparatus 100 can determine the horizontal height of the top edge of the circuit board 200 corresponding to the first board edge detecting 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 mounting portion 225 with its light emitting end facing the first front mounting portion 223, and the first light receiving device 32 is mounted on the first front mounting portion 223 with its light receiving end facing the first rear mounting portion 225. The first front extension 222 forms a first front light-transmitting opening 226 at a position corresponding to the first front loading portion 223, the first rear extension 224 forms a first rear light-transmitting opening 227 at a position 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 allow light emitted by the first light-emitting device 31 to pass through, so as to perform the edge height detection procedure of the circuit board 200. In addition, according to actual needs, the first light emitting device 31 and the first light receiving device 32 can be installed at different positions, that is, the first light emitting device 31 can be installed at the first front loading portion 223, and the first light receiving device 32 can be installed at the first rear loading portion 225, so that the first light emitting device 31 can emit light for detecting the plate edge backward, and thus the detecting function of the first plate edge detecting unit 3 can be performed.

Referring to fig. 1 to 4, the second plate edge detecting unit 4 and the first plate edge detecting unit 3 are symmetrically disposed with respect to the rotation driving unit 5, and perform similar functions, which are also only schematically illustrated in the drawings. The second plate edge detecting unit 4 specifically includes a second light emitting device 41 and a second light receiving device 42 capable of receiving light emitted from the second light emitting device 41 (for example, indicated by a horizontal dotted line indicating two left arrows in fig. 3). 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 212, and the light emitted from the second light emitting device 41 is as high as the light emitted from 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 penetrates through the second front loading portion 233 to form a second front light-transmitting opening 236, the second rear extension 234 penetrates through the second rear loading portion 235 to form a second rear light-transmitting opening 237, and the second front light-transmitting opening 236 and the second rear light-transmitting opening 237 are aligned with each other and allow light emitted by the second light-emitting device 41 to pass through. Accordingly, the level correction apparatus 100 can detect the level of the top edge of the circuit board 200 corresponding to the second board edge detecting 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 can be installed at different positions according to the actual requirement, and thus the plate edge detection function can be realized.

Referring to fig. 1, 3, 5 and 6, the rotary driving unit 5 includes, for example, a servo motor which protrudes forward from the front side of the coupling frame plate 211 and has a rotation axis perpendicular to the front side of the coupling frame plate 211 and spaced apart from the chassis plate 212, and is interposed between the first side 213 and the second side 214. In the horizontal calibration process of the circuit board 200, the rotation driving unit 5 can be controlled to drive the rotation clamping mechanism 6 and the circuit board 200 to rotate back and forth as shown in fig. 5 and 6, so as to execute the horizontal calibration procedure of the circuit board 200.

Referring to fig. 1 to 4, the rotating clamping mechanism 6 includes a cross frame 61, a slide rail 62, a first clamping device 63 and a second clamping device 64. The cross frame 61 is connected to the top side of the rotary driving unit 5 at the center and spans the chassis plate 212 to have two ends respectively protruding out of the first side 213 and the second side 214. 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 slide rail 62 is installed at one end of the cross frame 61 corresponding to the second side 214 and located at the bottom side of the cross frame 61, and is connected to the second clamping device 64, so that the second clamping device 64 can adjust the position along the slide rail 62, thereby adjusting the distance between the second clamping device 64 and the first clamping device 63. However, according to the actual requirement, the slide rail 62 of the rotary clamping mechanism 6 may be omitted, or the slide rail 62 may be disposed at a position corresponding to the first clamping device 63, and the slide rail 62 may be disposed at both the second clamping device 64 and the first clamping device 63, which are the implementation manners of the present embodiment. The first clamping device 63 is disposed at an end of the cross frame 61 corresponding to the first side 213 and extends downward to a position lower than the first light receiving device 32, is farther from the chassis plate 212 than the first plate edge detecting unit 3, and has a first clamping jaw 631, wherein the first clamping jaw 631 can be controlled to clamp the top edge of the circuit board 200. The second clamping device 64 is disposed at an end of the cross frame 61 corresponding to the second side 214 and extends downward to a position lower than the second light receiving device 42, is farther from the chassis plate 212 than the second plate edge detecting unit 4, and has a second clamping jaw 641, wherein the second clamping jaw 641 can be controlled to clamp the plate edge on 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 an implementation process of the horizontal calibration device 100 for performing horizontal calibration on the circuit board 200.

Referring to fig. 1, 3 and 4, first, the upright circuit board 200 can 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 clamp the top edge of the upright circuit board 200 together, and 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 and respectively receive light by the first light receiving device 32 and the second light receiving device 42, the top edge of the circuit board 200 is lower than the light emitted by the first light emitting device 31 and the second light emitting device 41, and the rotation driving unit 5 is in a state of not being actuated. In this state, since the circuit board 200 is not necessarily in a horizontal state when being held by the first holding device 63 and the second holding device 64, and is not suitable for directly performing a subsequent process, it is necessary to perform a horizontal calibration process first.

Referring to fig. 5 and 6, when the horizontal calibration process of the circuit board 200 is to be performed, a control unit, such as a control computer and 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 rotate back and forth, and stores corresponding rotation angles when the top edge of the circuit board 200 shields the light emitted by the first light emitting device 31 and the second light emitting device 41 for several times, so as to adjust the tilt state of the rotation clamping mechanism 6 according to the rotation angles, thereby calibrating the horizontal state of the circuit board 200.

Specifically, the rotation angle of the rotation driving unit 5 when 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 first light receiving device 32 does not receive the corresponding light is defined as a first rotation angle θ 1, and the rotation angle of the rotation driving unit 5 when 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 second light receiving device 42 does not receive the corresponding light is defined as a second rotation angle θ 2. The adjustment of the tilting state of the rotating clamping mechanism 6 and the horizontal state of the circuit board 200 is to tilt the rotating clamping mechanism 6 toward one side with respect to the carrier structure 2 from the state of zero rotation angle as shown in fig. 4 by the rotating driving unit 5, for example, in fig. 5, the rotating driving unit 5 drives the rotating clamping mechanism 6 and the circuit board 200 to rotate in the counterclockwise direction of the drawing surface, so that the portion of the circuit board 200 corresponding to the second side 214 gradually moves upward and the portion corresponding to the first side 213 gradually moves downward 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 by the second light emitting device 41, so the horizontal calibration apparatus 100 determines that the top edge of the circuit board 200 corresponding to the second side 214 has reached the predetermined horizontal height, and stores the rotation angle from zero (as shown in fig. 4) to the state shown in fig. 5 as the second rotation angle θ 2 (for example, 2 degrees). Subsequently, the rotation driving unit 5 drives the rotation holding mechanism 6 to rotate reversely together with the circuit board 200, for example, from the state of fig. 5 to fig. 6 to the clockwise rotation in the drawing, 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 by the first light emitting device 31 as shown in fig. 6, at this time, the first light receiving device 32 fails to receive the light emitted by the first light emitting device 31, the level correcting apparatus 100 thus judges that the top edge of the circuit board 200 has reached a predetermined level, and stores the difference between the rotation angle of the rotation driving unit 5 and the rotation angle of 0 in fig. 4 as the first rotation angle θ 1 (e.g., 6 degrees). The subsequent correction of the horizontal state of the circuit board 200 can be performed according to the measurement of the first rotation angle θ 1 and the second rotation angle θ 2, which is described below.

In this embodiment, since the first plate edge detecting unit 3 and the second plate edge detecting unit 4 are symmetrically disposed on both sides of the rotation driving unit 5, and the horizontal calibration apparatus 100 is configured symmetrically left and right, according to the geometric principle, the rotation angle θ 3 required for calibrating the circuit board 200 from the state shown in fig. 4 to the horizontal state is half of the absolute value of the difference between the first rotation angle θ 1 and the second rotation angle θ 2, as shown in the following formula:

according to the horizontal state of the circuit board 200, the side corresponding to the smaller of the first rotation angle θ 1 and the second rotation angle θ 2 measured by rotating the circuit board 200 has a higher horizontal height than the larger side, for example, the first rotation angle θ 1 is 6 degrees and the second rotation angle θ 2 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 corresponding to the first side 213, that is, in this example, the top edge of the circuit board 200 shows a downward-upward inclination trend (not shown in the figure) in the non-rotated and non-corrected state. Therefore, the rotation driving unit 5 can rotate the rotating clamping mechanism 6 downward from the side corresponding to the smaller of the first rotation angle θ 1 and the second rotation angle θ 2 (the second rotation angle θ 2 is smaller in this example) (i.e., the side corresponding to the second side 214) from the state where the rotation angle is zero until the rotation angle reaches a half of the absolute value of the difference between the first rotation angle θ 1 and the second rotation angle θ 2 (i.e., θ 3, which is 2 degrees in this example), thereby completing the horizontal calibration of the circuit board 200, and allowing the circuit board 200 to be processed or transported in a subsequent process while ensuring the horizontal state. Therefore, the light emitted by the first light emitting device 31 and the second light emitting device 41 is used as the height basis for the horizontal calibration, so that the processing procedure of the horizontal calibration performed by the circuit board 200 is fast, accurate and effective. When the light 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 by pivoting the carrier structure 2, the rotating clamping mechanism 6 and the like relative to the hanging mechanism 1, so that the light 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.

Although the above description refers to the first detection of the second rotation angle θ 2 and then the first rotation angle θ 1, the above description may be adjusted to the first detection of the first rotation angle θ 1 and then the second rotation angle θ 2, that is, different detection sequences may be used to correctly perform the horizontal calibration. In addition, although the horizontal calibration process is to rotate the circuit board 200 downward from the side corresponding to the smaller of the first rotation angle θ 1 and the second rotation angle θ 2 after the rotation angle θ 3 is known, on the premise that the top edge of the circuit board 200 is in a straight line shape, the circuit board 200 may be set to rotate upward from the side corresponding to the larger of the first rotation angle θ 1 and the second rotation angle θ 2.

In conclusion, the utility model discloses horizontal calibration equipment 100 accessible rotary driving unit 5 drives rotary clamping mechanism 6 reaches circuit board 200 reciprocating rotation, and pass through first board edge detecting element 3 reaches second board edge detecting element 4 surveys first rotation angle theta 1 with second rotation angle theta 2, according to go on circuit board 200's horizontal calibration, its process is effective fast and the result is correct, can greatly promote processing procedure yield and efficiency, so can reach the purpose of the utility model with the cost really.

Claims

1. A horizontal correction apparatus adapted to horizontally correct a circuit board in a standing shape, comprising:

a carrier structure comprising a seat frame, a first suspension and a second suspension, the seat frame having a first side and a second side on opposite sides, the first suspension having a first front extension and a first rear extension projecting from the first side and longitudinally spaced apart from each other, the second suspension having a second front extension and a second rear extension projecting from the second side of the seat frame and longitudinally spaced apart 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;

a second plate edge detection unit, including a second light emitting device and a second light receiving device capable of receiving light emitted from the second light emitting device, wherein one of the second light emitting device and the second light receiving device is disposed 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 disposed at a position corresponding to the second rear extension section, and the light emitted from the second light emitting device is equal in height to the light emitted from the first light emitting device;

the rotary driving unit is arranged on the carrier frame 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, 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 extends downwards 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 extends downwards to a position lower than the second light receiving device,

the first clamping device and the second clamping device can be controlled to clamp the top edge of the vertical circuit board, so that the top edge of the circuit board is lower than light rays emitted by the first light emitting device and the second light emitting device; the rotation driving unit can be controlled to drive the rotation clamping mechanism and the circuit board to rotate in a reciprocating mode, a first rotation angle is stored when the top edge of the circuit board shields the light emitted by the first light emitting device, a second rotation angle is stored when the top edge of the circuit board shields the light emitted by the second light emitting device, and the inclination state of the rotation 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 correcting apparatus according to claim 1, characterized in that: the seat frame is provided with a bottom frame plate, the first suspension frame 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 bottom frame plate and longitudinally extends, the first front extension section and the first rear extension section respectively extend from the front end and the rear end of the first main body section to the direction far 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 one of the first light emitting device and the first light receiving device is arranged on the first front loading part, 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 the other end of the first light emitting device and the first light receiving device is arranged on the first rear extension section, and the first front loading part and the first rear loading part are longitudinally spaced from each other; the second suspension rack further comprises a second main body section, a second front loading part and a second rear loading part, the second main body section is arranged on the top surface of the second side of the chassis plate and extends longitudinally, the second front extension section and the second rear extension section respectively protrude from the front end and the rear end of the second main body section in the direction away from the second side, the second front loading part is arranged at one end of the second front extension section, which is not connected with the second main body section, and one of the second light emitting device and the second light receiving device is arranged on the second front loading part, the second rear loading part is disposed at one end of the second rear extension section, which is not connected to the second main body section, and on which the other of the second light emitting device and the second light receiving device is disposed, and the second front loading part and the second rear loading part are longitudinally spaced from each other.

3. The level correcting 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 bottom frame plate and transversely extends outwards; 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 transversely extends outwards; 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 bottom frame plate and transversely extends outwards; the second rear extension section extends from the top edge of the second side to the bottom edge of the rear side of the chassis plate and extends outwards and transversely.

4. The level correcting apparatus according to claim 2, characterized in that: the first front extension section penetrates through a position corresponding to the first front loading part to form a first front light-transmitting opening, the first rear extension section penetrates through a position corresponding to 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 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 allow light emitted by the second light emitting device to pass through.

5. The level correcting apparatus according to claim 1, characterized in that: the seat frame is provided with a connecting frame plate and an underframe plate which is connected with the bottom side of the connecting frame plate and protrudes forwards, the first suspension frame is arranged at the position, corresponding to the first side, of the underframe plate, the second suspension frame is arranged at the position, corresponding to the second side, of the underframe plate, the positions of the first plate edge detecting unit and the second plate edge detecting unit are lower than that of the underframe plate, the rotary driving unit protrudes forwards from the front side of the connecting frame plate, the rotary axis of the rotary driving unit is perpendicular to the front side of the connecting frame plate and is spaced from the underframe plate, the transverse frame is arranged on the top side of the rotary driving unit and spans the underframe plate, the first clamping device is far away from the underframe plate than the first plate edge detecting unit, and the second clamping device is far away from the underframe plate than the second plate edge detecting unit.

6. The level correcting apparatus according to claim 1, characterized in that: the level correcting apparatus further includes a suspension mechanism having a top side adapted to engage a top bracing structure and on which the seat frame is rotatably disposed to enable controlled adjustment of the level of the seat frame relative to the suspension mechanism.

7. The level correcting apparatus according to claim 1, characterized in that: the rotating clamping mechanism further comprises a slide rail arranged at one end of the cross frame, the slide rail is connected to one of the first clamping device and the second clamping device and can enable the corresponding one of the first clamping device and the second clamping device to move along the slide rail in the extending direction of the cross frame.

8. The level correcting apparatus according to claim 1, characterized in that: the first plate edge detecting unit and the second plate edge detecting unit are symmetrically arranged relative to the rotation driving unit, and the center position of the transverse frame is connected with the rotation driving unit.