PCBA circuit board detection device

Abstract

The utility model discloses a PCBA circuit board detection device, which comprises a machine frame, a transmission module and a detection module, the transmission module and the detection module are arranged on the machine frame, the transmission module comprises a conveying line used for transmitting a carrier, a detection station is arranged in the conveying direction of the conveying line, the detection module is arranged above the detection station, and the detection module is arranged above the detection station. Comprising a camera device and a three-dimensional moving module for driving the camera device to realize spatial movement; and the camera device adopts a structured light camera. Therefore, the high-precision and high-efficiency detection requirements of the PCBA are met.

Description

TECHNICAL FIELD

[0001] The utility model relates to PCBA circuit board detection technical field, especially PCBA circuit board detection device. BACKGROUND

[0002] PCBA circuit board is widely used in electronic equipment, and its quality directly influences the performance and stability of the equipment. The size of the components on the PCBA circuit board is very small, some of which are as small as 0.25mm, and the PIN needle offset skew range, PIN needle float height and sinking deviation range on the PCBA circuit board are usually within ±0.25mm. UTILITY MODEL CONTENTS

[0003] To solve the above technical problems, the utility model provides PCBA circuit board detection device to solve the precision and efficiency problems existing in the prior art.

[0004] The utility model discloses a technical scheme: including frame and setting transmission module and detection module on the frame, transmission module includes the conveying line for transmission carrier, is equipped with detection station in the transmission direction of conveying line, and detection module sets up above detection station and includes camera device and three -dimensional movement module that drives camera device realizes space movement, camera device adopts structure light camera, is equipped with 2D camera still above detection station, 2D camera is caught and stores high resolution two -dimensional image to PCBA circuit board after structure light camera moves and avoids.

[0005] Further technical scheme is: structure light camera includes host computer and the main lens that is connected perpendicularly below host computer, and multiple groups of projectors are installed along the outer periphery of main lens.

[0006] Further technical scheme is: detection station below is equipped with jacking module, and jacking module includes the bearing plate that drives carrier lifting.

[0007] Further technical scheme is: jacking module still includes the driving part for driving bearing plate lifting, and driving part adopts electric jar, and the output end of electric jar is fixedly connected with the bottom of bearing plate.

[0008] Further technical scheme is: bearing plate below is equipped with mounting plate, and electric jar is fixed on mounting plate, and the four corners of bearing plate are equipped with guide rod, and guide rod is slidably connected on mounting plate through linear bearing.

[0009] The further technical scheme is that the three-dimensional moving module comprises an X-axis translation module with a stroke perpendicular to a conveying direction, a Y-axis translation module arranged on the X-axis translation module and with a stroke along the conveying direction, and a Z-axis lifting module arranged on the Y-axis translation module and with a stroke along a vertical direction; and the camera device is connected with a moving output end of the Z-axis lifting module.

[0010] The further technical scheme is that a slide rail extending in the same direction as the X-axis translation module is arranged above the conveying line; one end of the Y-axis translation module is connected with the moving output end of the X-axis translation module, and the other end is connected with the slide rail through a sliding block.

[0011] The further technical scheme is that the carrier is provided with a positioning pin for detecting that the carrier is jacked to a position.

[0012] The further technical scheme is that limiters and positioning stoppers are respectively arranged on both sides of the detection station along the conveying direction; the limiter comprises a liftable blocking block; and the positioning stopper comprises a stop plate for pushing the carrier to be tightly stopped against the blocking block.

[0013] The beneficial technical effects of the utility model are that: the structure light camera can provide higher three-dimensional detection precision, and can effectively detect the subtle defects of components and PIN needle installation on the PCBA circuit board; the three-dimensional moving module can realize flexible movement of the camera device in three-dimensional space, can cover PCBA circuit boards with different sizes and shapes, and has strong adaptability; the jacking module can make the carrier jack up to a working height, does not affect the continuous work of the conveying line, and has high transmission efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is the whole structure schematic diagram of the utility model;

[0015] Figure 2 It is the internal structure schematic diagram of the utility model;

[0016] Figure 3 It is the conveying line structure schematic diagram of the utility model;

[0017] Figure 4 It is the structure light camera structure schematic diagram of the utility model;

[0018] Figure 5 It is the specific structure schematic diagram of the camera device of the utility model;

[0019] Figure 6 It is the jacking module structure schematic diagram of the utility model;

[0020] Wherein: 1, rack; 2, conveying line; 21, jacking limiting block; 22, photoelectric switch; 3, camera device; 31, main machine; 32, mounting base; 33, projector; 34, support frame; 35, stroke groove; 4, three-dimensional movement module; 41, X-axis translation module; 42, Y-axis translation module; 43, Z-axis lifting module; 5, jacking module; 51, mounting plate; 52, driving piece; 53, bearing plate; 54, guide rod; 6, 2D camera; 7, limiter; 8, positioning stopper; 9, positioning pin. DETAILED DESCRIPTION

[0021] In order to more clearly understand the technical means of the utility model, and can be implemented according to the content of the specification, the specific embodiments of the utility model are further described in detail below, the following examples are used to illustrate the utility model, but not to limit the scope of the utility model.

[0022] As Figures 1 to 3 Indicated, the PCBA circuit board detection device of the utility model, including rack 1 and the transmission module and detection module of setting on rack 1, the transmission module includes the conveying line 2 for transmission carrier, is equipped with detection station in the transmission direction of conveying line 2, and detection module is set on the top of detection station, including camera device 3 and the three-dimensional movement module 4 of driving the space movement of camera device 3;Detection station below is equipped with jacking module 5, and the carrier is driven lifting through jacking module 5.

[0023] As Figure 4 , the three-dimensional movement module 4 includes X-axis translation module 41, Y-axis translation module 42 and Z-axis lifting module 43, wherein the stroke of X-axis translation module 41 is perpendicular to the transmission direction, the stroke of Y-axis translation module 42 is along the transmission direction, and the stroke of Z-axis lifting module 43 is along the vertical direction. The camera device 3 is connected to the moving output end of the Z-axis lifting module 53, and the camera device 3 is driven to the predetermined position by the three-dimensional movement module 4.

[0024] Further, the conveying line 2 is provided with a slide rail extending in the same direction as the X-axis translation module 41 above the conveying line 2, one end of the Y-axis translation module 42 is connected to the moving output end of the X-axis translation module 41, and the other end is connected to the slide rail through a sliding block. Similarly, the Z-axis lifting module 43 is connected to the Y-axis translation module 42 through a slide rail extending in the same direction as the Y-axis translation module 42, and the Z-axis lifting module 43 is further provided with a slide rail extending in the vertical direction, and the camera device 3 is connected to the slide rail in the vertical direction.

[0025] The camera device 3 is driven to move freely in space by the joint action of the X-axis translation module 41, the Y-axis translation module 42 and the Z-axis lifting module 43, so as to facilitate more accurate positioning, scanning and testing. The X-axis translation module 41 and the Y-axis translation module 42 are linear motors; the Z-axis lifting module 43 can be driven by a servo cylinder to achieve high-precision positioning.

[0026] The camera device 3 includes a structured light camera, such as Figure 5 The structured light camera is a 3D camera, which includes a main machine 31 and a main lens vertically connected below the main machine 31. An installation base 32 with multiple installation surfaces is arranged along the outer circumferential surface of the main lens. A projector 33 is installed on each installation surface. In this embodiment, the number of installation surfaces is four, so that four projectors 33 can be installed, and the four projectors 33 are evenly distributed around the four corners at an interval of 90°.

[0027] The structured light camera is connected with the moving output end of the Z-axis lifting module 43 through a support frame 34. Specifically, the support frame 34 extends in the vertical direction at the corresponding positions of the main machine 31 and the installation base 32, and the main machine 31 and the installation base 32 are connected with the support frame 34 through fasteners. Specifically, the support frame 34 is provided with a stroke groove 35 at the position corresponding to the main machine 31. By adjusting the position of the fastener in the stroke groove 35, the vertical height of the structured light camera can be adjusted.

[0028] The principle of the structured light camera is that the projector 33 projects a known optical pattern onto the surface of an object, and the structured light camera captures the pattern on the surface of the object and performs three-dimensional data analysis. When it is necessary to detect the surface of a relatively complex object, for example, the size of an element on a PCBA circuit board is as small as When it is necessary to detect whether the element on the PCBA circuit board is missing, whether the PIN pin on the PCBA circuit board is offset and inclined, whether the PIN pin is floating and sinking, and whether there are more or fewer pins, etc., the structured light camera is set to perform special processing or multiple scanning to achieve accurate and efficient measurement.

[0029] Further, a 2D camera 6 is arranged above the detection station. The 2D camera 6 is fixedly arranged on the top of the rack 1. After the structured light camera completes scanning and three-dimensional data processing, the 2D camera 6 captures and stores a high-resolution two-dimensional image of the PCBA circuit board under the driving of the Y-axis translation module 42.

[0030] As Figure 6The jacking module 5 comprises a mounting plate 51, a driving member 52 fixedly arranged below the mounting plate 51, and a bearing plate 53 lifted relative to the mounting plate 51 under the driving of the driving member 52, and the carrier is jacked to a working height along with the bearing plate 53, and the conveying line can continuously work without affecting the detection of the PCBA circuit board, and the transmission efficiency is high.

[0031] In the embodiment, the driving member 52 is an electric cylinder, the output end of the electric cylinder is fixedly connected with the bottom of the bearing plate 53, the electric cylinder works more stably, and the positioning accuracy is higher.

[0032] Further, the four corners of the bearing plate 53 are provided with guide rods 54 for guiding the vertical lifting of the bearing plate 53, the guide rods 54 are slidably connected to the mounting plate 51 through linear bearings, so that horizontal displacement of the bearing plate 53 is avoided when the carrier is lifted along with the bearing plate 53, and the stability of the bearing plate 53 is improved.

[0033] Further, the free ends of the two guide rods 54 are connected through connecting members, so that the stability of the lifting of the bearing plate 53 is further improved.

[0034] In order to ensure that the carrier is accurately positioned at the detection station, limiters 7 and positioning stoppers 8 are fixedly arranged on both sides of the detection station along the conveying direction, the limiter 7 comprises a first driving air cylinder and a blocking block lifted along with the first driving air cylinder, and the positioning stopper 8 comprises a second driving air cylinder and a stop plate pushed against the blocking block along with the pneumatic stroke of the second driving air cylinder.

[0035] In work, the carrier is conveyed to the detection station by the conveying line 2, the carrier is lifted along with the bearing plate 53 under the driving of the electric cylinder, when the positioning pin 9 arranged on the carrier detects that the carrier is jacked to the detection height, the first driving air cylinder drives the blocking block to rise, and the second driving air cylinder drives the stop plate to push the carrier, so that the carrier is limited between the limiter 7 and the positioning stopper 8.

[0036] Further, carrier jacking limit blocks 21 are arranged on both sides of the detection station on the conveying line 2, so as to prevent the carrier from being jacked beyond the set position.

[0037] In order to accurately position the carrier, a pair of photoelectric switches 22 are arranged on the conveying line 2, the pair of photoelectric switches 22 are arranged close to the detection station, and are used for detecting the position of the carrier.

[0038] The above only describes the preferred embodiments of the present application, and is not used to limit the present application, and it should be pointed out that, for ordinary skilled in the art, without departing from the technical principles of the present application, a number of improvements and modifications can be made, and these improvements and modifications should be regarded as the protection range of the present application.

Claims

1. A PCBA circuit board detection device, characterized in that: The application relates to a detection device for PCBA circuit boards, which comprises a rack (1) and a transmission module and a detection module arranged on the rack (1), the transmission module comprises a conveying line (2) for conveying carriers, a detection station is arranged on the conveying line (2) in the conveying direction, the detection module is arranged above the detection station and comprises a camera device (3) and a three-dimensional movement module (4) for driving the camera device (3) to realize spatial movement; the camera device (3) comprises a structured light camera; a 2D camera (6) is further arranged above the detection station, and the 2D camera (6) captures and stores high-resolution two-dimensional images of the PCBA circuit board after the structured light camera moves to avoid.

2. The PCBA circuit board inspection apparatus of claim 1, wherein: The structured light camera comprises a main machine (31) and a main lens vertically connected below the main machine (31), and a plurality of projectors (33) are arranged along the outer periphery of the main lens.

3. The PCBA circuit board inspection apparatus of claim 1, wherein: A jacking module (5) is arranged below the detection station, and the jacking module (5) comprises a bearing plate (53) for driving the carrier to lift.

4. The PCBA circuit board inspection apparatus of claim 3, wherein: The jacking module (5) further comprises a driving element (52) for driving the bearing plate (53) to lift, the driving element (52) is an electric cylinder, and the output end of the electric cylinder is fixedly connected with the bottom of the bearing plate (53).

5. The PCBA circuit board inspection apparatus of claim 4, wherein: An installation plate (51) is arranged below the bearing plate (53), the electric cylinder is fixedly arranged on the installation plate (51), guide rods (54) are arranged at the four corners of the bearing plate (53), and the guide rods (54) are slidably connected to the installation plate (51) through linear bearings.

6. The PCBA circuit board inspection apparatus of claim 1, wherein: The three-dimensional movement module (4) comprises an X-axis translation module (41) with a stroke perpendicular to the conveying direction, a Y-axis translation module (42) arranged on the X-axis translation module (41) and having a stroke along the conveying direction, and a Z-axis lifting module (43) arranged on the Y-axis translation module (42) and having a stroke along the vertical direction, and the camera device (3) is connected with the movement output end of the Z-axis lifting module (43).

7. The PCBA circuit board inspection apparatus of claim 6, wherein: A slide rail extending in the same direction as the X-axis translation module (41) is arranged above the conveying line (2), one end of the Y-axis translation module (42) is connected with the movement output end of the X-axis translation module (41), and the other end is slidably connected to the slide rail through a sliding block.

8. The PCBA circuit board inspection apparatus of claim 1, wherein: A positioning pin (9) for detecting whether the carrier is lifted to the position is arranged on the carrier.

9. The PCBA circuit board inspection apparatus of claim 1, wherein: Limiting devices (7) and positioning stoppers (8) are fixedly arranged on both sides of the detection station along the conveying direction, the limiting device (7) comprises a liftable blocking block, and the positioning stopper (8) comprises a stop plate for pushing the carrier to abut against the blocking block.

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