Circuit board sample detection table

Abstract

The utility model discloses a circuit board sample detection table. A conveying groove is formed between an observation table and a back plate which are arranged on a conveying frame; a fixing frame and a longitudinal adjusting frame are arranged in the conveying groove, conveying belts are arranged on the fixing frame and the longitudinal adjusting frame, and the two conveying belts are used in cooperation. The longitudinal adjusting frame is fixed on the longitudinal driving device and the longitudinal guiding device; a fixing seat is arranged on the back plate, an optical observation assembly is arranged on the fixing seat, and the optical observation assembly comprises an extension part capable of being adjusted front and back and an optical irradiation part arranged at the forefront section. According to the circuit board conveying device, the distance between the fixing frame and the longitudinal adjusting frame can be adjusted, and conveying of various circuit boards with different widths is achieved through adjustment; the device is matched with the conveying belt, and the optical irradiation part capable of extending front and back for adjustment is arranged at the upper part of the conveying belt, so that the welding appearance of components on a circuit board can be observed through personnel observation or connection with an external visual device.

Description

Technical Field

[0001] The utility model belongs to the technical field of on-site inspection equipment for an electronic product assembly production line, and in particular relates to a circuit board sample inspection platform. Background Art

[0002] When producing circuit boards for electronic equipment, small circuit boards are generally placed on pallets, which are used to support the circuit boards and run them in component installation, welding, and baking equipment. They are then transported outwards through external conveying devices.

[0003] The technical problem currently encountered before circuit board production is that when the circuit board is transported horizontally, in order to prevent defects in the welding of electronic components, two methods, appearance inspection and functional inspection, are usually used to conduct product inspection. This appearance inspection is generally carried out through optical observation equipment. When there is a problem with the product welding, the inspectors observe whether the solder joints and the appearance of the components meet the standards, and then the circuit testing equipment is used to perform functional inspection.

[0004] The above-mentioned testing method usually moves the product outside the production line for testing during the mass production stage. However, during the sample production stage, the batch size is small and the types are many, which requires frequent changes in the conveyor belt size and moving the circuit board to the outside. This action reduces production efficiency and becomes a bottleneck process for sample trial production.

[0005] In view of the technical problems disclosed above, the technical problem that technical personnel in this field urgently need to solve is to design a sample sampling device that can serve as a conveyor and inspection table on the production line, and can achieve sampling and testing of small batches and multiple types of samples through adjustment. Summary of the invention

[0006] In view of the shortcomings of the prior art mentioned above, the purpose of the utility model is to provide a circuit board sample testing platform, which provides a conveying platform with adjustable conveying width, and an optical observation device with adjustable working range is provided on the conveying platform, so as to realize rapid detection of samples through the optical observation device.

[0007] The technical solution adopted by the utility model to solve its technical problems is:

[0008] A circuit board sample testing station, comprising a conveying frame, an observation platform and a back plate are arranged on the conveying frame, a conveying trough is arranged between the observation platform and the back plate; a longitudinal driving device and a longitudinal guiding device are arranged between the observation platform and the back plate; a fixing frame and a longitudinal adjusting frame are arranged in the conveying trough, and a conveying belt is arranged on both the fixing frame and the longitudinal adjusting frame, and the two conveying belts are used in coordination; the longitudinal adjusting frame is fixed on the longitudinal driving device and the longitudinal guiding device;

[0009] The back plate is provided with a fixing seat, and an optical observation assembly is provided on the fixing seat. The optical observation assembly comprises an extension portion which can be adjusted forward and backward and an optical irradiation portion which is provided at the frontmost section.

[0010] A storage slot is arranged on the top surface of the observation platform, and an insulating pad is arranged in the storage slot. The insulating pad is used as an operating surface to realize observation and operation.

[0011] The longitudinal drive device and the longitudinal guide device are arranged in two groups at intervals on the left and right, and respectively include a driving screw and a guide rod. A driving motor is arranged inside the observation platform, and a switch device is arranged on the front side or the top surface of the observation platform for controlling the driving motor; the bottom of the longitudinal adjustment frame is provided with a fixed block, a driving screw and a guide rod fixed together.

[0012] The optical observation assembly includes a slider base, on which a locking and fixing device is arranged; a bent connecting rod is arranged on the upper part of the locking and fixing device as an extension part, and a locking knob is arranged at the connection point of multiple bent connecting rods, and an irradiation disk is fixed to the end of the bent connecting rod as an optical irradiation part, and a plurality of irradiation lamps are arranged at the bottom of the irradiation disk, and a convex lens or a photoelectric signal transmission device is arranged in the middle of the irradiation disk.

[0013] The method of fixing the conveyor belt on the fixed frame and the longitudinal adjustment frame is the same, which includes end steering wheels, and a middle support wheel is arranged between the end steering wheels; a fixed plate is arranged at the bottom of the fixed frame or the longitudinal adjustment frame, and a middle steering wheel is arranged on the fixed plate, and a motor support frame is fixed on the fixed plate, and the belt drive motor is fixed through the motor support frame. The driving end of the belt drive motor is provided with a driving wheel, and the conveyor belt is driven by the cooperation of the driving wheel and the middle steering wheel.

[0014] The utility model has the following beneficial effects: the utility model includes a conveying frame, a conveying trough is arranged between the observation platform and the back plate arranged on the conveying frame; a longitudinal driving device and a longitudinal guiding device are arranged between the observation platform and the back plate; a fixed frame and a longitudinal adjusting frame are arranged in the conveying trough, and both the fixed frame and the longitudinal adjusting frame are provided with conveyor belts and the two conveyor belts are used in conjunction with each other; the longitudinal adjusting frame is fixed on the longitudinal driving device and the longitudinal guiding device; a fixed seat is arranged on the back plate, and an optical observation component is arranged on the fixed seat, and the optical observation component includes an extension part that can be adjusted forward and backward and an optical irradiation part arranged at the frontmost section. Through the above structural arrangement, the utility model can adjust the spacing between the fixed frame and the longitudinal adjustment frame, and realize the conveyance of circuit boards of various different widths through adjustment; the utility model cooperates with the conveyor belt and is provided with an optical irradiation part that can be extended forward and backward and adjusted on the upper part of the conveyor belt, and realizes the irradiation of the circuit board by adjusting the position of the optical irradiation part, and realizes the observation of the welding appearance of components on the circuit board through personnel observation or connection with an external visual device.

[0015] The utility model overcomes various technical drawbacks in the prior art, can realize the transportation of circuit boards, and can realize vertical observation during the transportation process, is suitable for process inspection of small batches of circuit boards, is convenient and fast, and is an ideal circuit board sample inspection table. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0017] Figure 1 This is a schematic diagram of the top three-dimensional structure of the utility model;

[0018] Figure 2 This is a schematic diagram of the bottom three-dimensional structure of the utility model;

[0019] Figure 3 This is a schematic diagram of the top view structure of the utility model;

[0020] Figure 4 This is a side view of the structure of the utility model;

[0021] Figure 5 for Figure 1 A schematic diagram of the enlarged structure of the middle A area;

[0022] In the figure, 1, conveying frame, 11, legs, 12, observation platform, 13, back plate, 14, conveying trough, 15, storage trough, 16, insulating pad, 17, power knob, 18, longitudinal switch, 2, driving screw, 21, guide rod, 22, fixing block, 23, gear, 24, toothed belt, 3, optical observation component, 30, slider base, 31, locking fixing plate, 32, locking screw, 33, bending connecting rod, 34, locking knob, 35, irradiation disk, 36, convex lens, 37, irradiation lamp, 38, power switch, 4, fixing frame, 5, longitudinal adjustment frame, 51, left end steering wheel, 52, right end steering wheel, 53, conveyor belt, 54, fixing plate, 55, left middle steering wheel, 56, right middle steering wheel, 57, middle support wheel, 6, belt drive motor, 61, motor support frame, 62, driving wheel. DETAILED DESCRIPTION

[0023] The present invention is further described in detail below through implementation methods. It should be understood that the working principle of the present invention is relatively clear after the explanation of the specification, and those skilled in the art can further extend it under the guidance of the specification and specific implementation methods, but such technical extension should fall within the scope of protection of the claims of this patent application.

[0024] A circuit board sample testing platform, comprising a conveying frame 1, the conveying frame 1 is supported by four legs 11, an observation platform 12 and a back plate 13 are arranged on the conveying frame 1, and a conveying slot 14 is arranged between the observation platform 12 and the back plate 13; a longitudinal driving device and a longitudinal guiding device are arranged between the observation platform 12 and the back plate 13, and the longitudinal driving device and the longitudinal guiding device are arranged in two groups at intervals on the left and right, respectively including a driving screw 2 and a guide rod 21, a driving motor is arranged inside the observation platform 12 for driving the screw 2, and a longitudinal switch 18 is arranged on the front side of the observation platform 12 for controlling the driving motor, and the driving motor described here is used for driving the screw 2; a fixing block 22 is arranged at the bottom of the longitudinal adjustment frame 5, and the driving screw 2 and the guide rod 21 are fixed to one body. A storage slot 15 is arranged on the top surface of the observation platform 12, and an insulating pad 16 is arranged in the storage slot 15, and observation and operation can be realized by using the insulating pad 16 as an operating surface, and insulation protection of the circuit board can be realized by using the insulating pad 16.

[0025] The longitudinal adjustment frame 5 is fixed in the conveying trough 14, and a fixed frame 4 is also provided in the conveying trough 14. The fixed frame 4 is arranged parallel to the longitudinal adjustment frame 5. Both the fixed frame 4 and the longitudinal adjustment frame 5 are provided with a conveyor belt 53 and the two conveyor belts 53 are used in conjunction with each other; the longitudinal adjustment frame 5 is fixed on the driving screw 2 and the guide rod 21, and the longitudinal adjustment frame 5 is driven by a driving motor. This drive can realize the adjustment of the support width between the two conveyor belts 53.

[0026] The fixing and driving principle of the conveyor belt 53 is as follows: Figure 1 , 5As shown, the fixed frame 4 and the longitudinal adjustment frame 5 are fixed with the conveyor belt 53 in the same manner. The structure of the fixed conveyor belt 53 on the longitudinal adjustment frame 5 is used as an example for explanation. It includes two end steering wheels, namely a left steering wheel 51 and a right steering wheel 52. The conveyor belt 53 is fixed around the left steering wheel 51 and the right steering wheel 52. In order to prevent the middle of the conveyor belt 53 from sinking, a middle support wheel 57 is arranged between the two end steering wheels. The utility model is provided with a fixed plate 54 at the bottom of the longitudinal adjustment frame 5. Two middle steering wheels, namely a left middle steering wheel 55 and a right middle steering wheel 56, are arranged on the fixed plate 54. A motor support frame 61 is fixed on the fixed plate 54. The motor support frame 61 is arranged between the left middle steering wheel 55 and the right middle steering wheel 56. The belt drive motor 6 is fixed by the motor support frame 61. The driving end of the belt drive motor 6 is provided with a driving wheel 62. The driving of the conveyor belt 53 is realized by the cooperation of the driving wheel 62 and the two middle steering wheels. Furthermore, the motor support frame 61 is provided with a vertical long hole or a plurality of spaced fixed holes, the purpose of which is to achieve vertical adjustment of the belt drive motor 6, and to adjust the tightness of the conveyor belt 53 through vertical adjustment. Through the above structural setting, the horizontal conveyance of the circuit board can be achieved through the conveyor belt 53, and the conveyance of different circuit boards can be adapted by adjusting the spacing between the fixed frame 4 and the longitudinal adjustment frame 5.

[0027] The utility model has a fixing seat 30 disposed on the back plate 13. The fixing seat 30 adopts a dovetail design. An optical observation component 3 is disposed on the fixing seat 30. The optical observation component 3 includes an extension portion that can be adjusted forward and backward and an optical irradiation portion disposed at the frontmost section.

[0028] The optical observation assembly 3 includes a slider base 31, which is vertically plugged into the fixing seat 30, and a locking screw 32 is provided on the slider base 31 as a locking and fixing device; at the top of the slider base 31, a plurality of sections of bent connecting rods 33 are provided above the locking and fixing device as extensions, and locking knobs 34 are provided at the connection points of the plurality of bent connecting rods 33, and an irradiation disk 35 is fixed to the end of the bent connecting rod 33 as an optical irradiation part, and a plurality of irradiation lamps 37 are provided at the bottom of the irradiation disk 35, and a convex lens 36 or a photoelectric signal transmission device is provided in the middle of the irradiation disk 35. In this embodiment, a convex lens 36 is designed, and the user can directly stretch the convex lens 36 to the upper part of the conveyor belt 53 to observe the circuit board sample through human eye observation.

[0029] Those skilled in the art may also replace the convex lens 36 with a photoelectric signal transmission device. When such a device is used, it may be connected to an external display screen to magnify and observe the circuit board through the external display screen.

[0030] A power switch 38 is also provided on the side of the irradiation disk 35, and the power switch 38 is used to control the multiple irradiation lamps 37 and the photoelectric signal transmission device. The above-mentioned photoelectric signal transmission device is a common equipment in the field of photoelectric detection. Those skilled in the art can install and use it under the guidance of this specification, and it will not be described as a key technology in this patent application.

[0031] In summary, the utility model cooperates with the conveyor belt 53 and is provided with an optical irradiation part 3 that can be extended forward and backward and adjusted on the upper part of the conveyor belt 53. The circuit board is irradiated by adjusting the position of the optical irradiation part 3, and the appearance of the welding of components on the circuit board is observed by personnel or connected to an external visual device. The utility model overcomes many technical drawbacks in the prior art, can realize the conveyance of various types of circuit boards, and can realize vertical observation during the conveyance process. It is suitable for the on-line inspection of small batches of circuit boards, is convenient and fast, and is an ideal circuit board sample inspection station.

Claims

1. A circuit board sample testing station, characterized in that: It includes a conveying frame, an observation platform and a back plate are arranged on the conveying frame, a conveying trough is arranged between the observation platform and the back plate; a longitudinal driving device and a longitudinal guiding device are arranged between the observation platform and the back plate; a fixing frame and a longitudinal adjusting frame are arranged in the conveying trough, and a conveying belt is arranged on both the fixing frame and the longitudinal adjusting frame, and the two conveying belts are used in coordination; the longitudinal adjusting frame is fixed on the longitudinal driving device and the longitudinal guiding device; The back plate is provided with a fixing seat, and an optical observation assembly is provided on the fixing seat. The optical observation assembly comprises an extension portion which can be adjusted forward and backward and an optical irradiation portion which is provided at the frontmost section.

2. A circuit board sample testing platform as claimed in claim 1, characterized in that: A storage slot is arranged on the top surface of the observation platform, and an insulating pad is arranged in the storage slot.

3. A circuit board sample testing platform as claimed in claim 1, characterized in that: The longitudinal drive device and the longitudinal guide device are arranged in two groups at intervals on the left and right, and respectively include a driving screw and a guide rod. A driving motor is arranged inside the observation platform, and a switch device is arranged on the front side or the top surface of the observation platform for controlling the driving motor; the bottom of the longitudinal adjustment frame is provided with a fixed block, a driving screw and a guide rod fixed together.

4. A circuit board sample testing platform as claimed in claim 1, characterized in that: The optical observation assembly includes a slider base, on which a locking and fixing device is arranged; a bent connecting rod is arranged on the upper part of the locking and fixing device as an extension part, and a locking knob is arranged at the connection point of multiple bent connecting rods, and an irradiation disk is fixed to the end of the bent connecting rod as an optical irradiation part, and a plurality of irradiation lamps are arranged at the bottom of the irradiation disk, and a convex lens or a photoelectric signal transmission device is arranged in the middle of the irradiation disk.

5. A circuit board sample testing platform as claimed in claim 1, characterized in that: The method of fixing the conveyor belt on the fixed frame and the longitudinal adjustment frame is the same, and both are provided with end steering wheels; a fixed plate is provided at the bottom of the fixed frame or the longitudinal adjustment frame, a middle steering wheel is provided on the fixed plate, a motor support frame is fixed on the fixed plate, a belt drive motor is fixed through the motor support frame, a driving wheel is provided at the driving end of the belt drive motor, and the conveyor belt is driven by the cooperation of the driving wheel and the middle steering wheel.

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