Stable feeding mechanism for circuit board detection

Abstract

The utility model discloses a stable feeding mechanism for circuit board detection. The stable feeding mechanism comprises a base frame, a lifting material frame, a clamping and arranging assembly, a feeding roller set and an adsorption kneading assembly. The lifting material frame is arranged at the bottom in the base frame, the lifting material frame comprises a lifting table, and the adsorption kneading assembly comprises a transverse moving mechanism, a connecting plate, a plurality of lifting air cylinders and a vacuum suction cup used for sucking a circuit board; the clamping and material arranging assembly comprises an opposite moving frame and material arranging frames arranged on the opposite moving frame, and the material arranging frames are located on the two sides of the lifting table. The opposite moving frame drives the material arranging frame to clamp the circuit board, so that the circuit board is aligned in the vertical direction, the transverse moving mechanism and the lifting air cylinders drive the vacuum suction cups to be close to each other and adsorb the circuit board to ascend, the lifting air cylinders are used for kneading, and the circuit board is bent to a certain degree within the deformation range. Therefore, only a single circuit board can be stably fed each time.

Description

Technical Field

[0001] The utility model relates to the field of circuit board detection equipment, and particularly relates to a stable feeding mechanism for circuit board detection. Background Technique

[0002] In the existing circuit board production, it is necessary to first detect the large circuit board after etching, so as to sort out the circuit boards that do not meet the quality standards. In order to achieve automatic detection, the existing equipment takes pictures and samples the moving circuit boards, and uses image recognition algorithms to determine whether the circuit boards meet the quality standards; during the feeding process of the circuit boards, manual handling is adopted and placed on the feeding plate, so that the circuit boards are not placed flat, which is likely to cause image recognition failure. In addition, the existing feeding machines use roller feeding or vacuum adsorption feeding. Since there may be static electricity between the circuit boards and they adsorb to each other, it is easy to adsorb multiple circuit boards during one feeding, resulting in different brightness and gray levels of the circuit boards under the backlight compensation of the backlight when taking pictures and sampling, which also causes image recognition failure. Content of the Utility Model

[0003] In view of this, the purpose of the utility model is to provide a stable feeding mechanism for circuit board detection to solve the above problems.

[0004] To solve the above technical problems, the technical solution of the utility model is: a stable feeding mechanism for circuit board detection, including a base frame, a lifting feeding frame, a clamping and aligning component, a feeding roller group, and an adsorption and rubbing component; the lifting feeding frame is arranged at the inner bottom of the base frame, the feeding roller group is arranged in the base frame and above the lifting feeding frame, the adsorption and rubbing component is arranged in the base frame and above the feeding roller group, the lifting feeding frame includes a lifting platform, and the adsorption and rubbing component includes a transverse movement mechanism for approaching the lifting platform, a connecting plate, a plurality of lifting cylinders for realizing the rubbing action, and a vacuum chuck for sucking the circuit board; the clamping and aligning component includes an opposing movement frame and an aligning frame arranged on the opposing movement frame, and the aligning frame is located on both sides of the lifting platform.

[0005] Preferably, the transverse movement mechanism includes a limit guide rail arranged on the connecting plate, a limit block fixed on the base frame and cooperating with the limit guide rail, and a transverse movement cylinder fixed on the base frame and with its movable end fixedly connected to the connecting plate.

[0006] Preferably, the lifting cylinder is arranged at one end of the connecting plate close to the lifting platform, the movable end of the lifting cylinder faces the circuit board, and the vacuum chuck is fixedly installed on the movable end of the lifting cylinder.

[0007] Preferably, the lifting rack further includes a lifting motor, a threaded shaft fixedly connected to the output shaft of the lifting motor, a first guide rail arranged parallel to the threaded shaft, and a lifting end sleeved on the threaded shaft and limited on one side within the first guide rail; the side surface of the lifting end is fixed to the lifting platform.

[0008] Preferably, the oppositely moving rack includes a fixed part, a movable part, a second guide rail, a transmission shaft symmetrically provided with a right-handed thread and a left-handed thread, and a driving part; the fixed part is fixedly connected to the base frame, both ends of the second guide rail and the transmission shaft are hinged to the fixed part, the movable part is arranged on the second guide rail and the transmission shaft, the second guide rail is slidably connected to the movable part, and the transmission shaft is threadedly connected to the movable part; the movable part is fixedly connected to the sorting rack.

[0009] Preferably, the driving part is a rotating handwheel or a rotating motor.

[0010] The technical effects of the present utility model are mainly reflected as follows: The stacked circuit boards are sent to the side of the feeding roller group through the lifting rack, the sorting rack is driven by the oppositely moving rack to clamp the circuit boards, so that the circuit boards are aligned in the vertical direction. The horizontal moving mechanism and the lifting cylinder are also used to drive the vacuum suction cup to approach and adsorb the circuit boards to rise, and several lifting cylinders are used for rubbing actions, so that the circuit boards are bent to a certain extent within the deformation range, so that the circuit boards adsorbed under the circuit boards due to electrostatic force fall back to the lifting rack, thereby ensuring that only a single circuit board is stably fed each time. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 is the front view of the present utility model;

[0012] Figure 2 is the adsorption and rubbing assembly sucking the circuit board;

[0013] Figure 3 is the adsorption and rubbing assembly lifting the circuit board;

[0014] Figure 4 is the adsorption and rubbing assembly bending the circuit board;

[0015] Figure 5 is the side view of the oppositely moving rack.

[0016] The reference numerals are: 1 - base frame, 2 - lifting and feeding rack, 21 - lifting table, 22 - lifting motor, 23 - threaded shaft, 24 - first guide rail, 25 - lifting end, 3 - clamping and aligning component, 31 - opposing moving frame, 311 - fixed part, 312 - movable part, 313 - second guide rail, 314 - transmission shaft, 315 - driving part, 32 - aligning rack, 4 - feeding roller group, 5 - adsorption and kneading component, 51 - transverse movement mechanism, 511 - limit guide rail, 512 - limit block, 513 - transverse movement cylinder, 52 - connecting plate, 53 - lifting cylinder, 54 - vacuum suction cup. Detailed implementation manners

[0017] The following further details the detailed implementation manners of the present utility model in conjunction with the accompanying drawings, so that the technical solution of the present utility model is easier to understand and master.

[0018] In this embodiment, it should be understood that the orientation or positional relationship indicated by terms such as "middle", "upper", "lower", "top", "right side", "left end", "above", "back", "middle", etc. is based on the orientation or positional relationship shown in the accompanying drawings. It is only for the convenience of describing the present invention, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be construed as a limitation to the present invention.

[0019] In addition, in this specific implementation manner, if the connection or fixing manner between components is not specially described, the connection or fixing manner can be bolt fixing or pin fixing commonly used in the prior art, or pin shaft connection, etc. Therefore, it will not be elaborated in this embodiment.

[0020] The present utility model provides a stable feeding mechanism for circuit board detection, as Figures 1-5As shown in the figure, it includes a base frame 1, a lifting material rack 2, a clamping and aligning component 3, a feeding roller group 4, and an adsorption and kneading component 5; the lifting material rack 2 is arranged at the inner bottom of the base frame 1, the feeding roller group 4 is arranged inside the base frame 1 and above the lifting material rack 2, the adsorption and kneading component 5 is arranged inside the base frame 1 and above the feeding roller group 4. The lifting material rack 2 includes a lifting platform 21, and the adsorption and kneading component 5 includes a transverse movement mechanism 51 for approaching the lifting platform 21, a connecting plate 52, a plurality of lifting cylinders 53 for realizing the kneading action, and a vacuum chuck 54 for sucking the circuit board; the clamping and aligning component 3 includes an oppositely moving frame 31 and an aligning rack 32 arranged on the oppositely moving frame 31. The aligning rack 32 is located on both sides of the lifting platform 21. The stacked circuit boards are sent to the side of the feeding roller group 4 through the lifting material rack. The oppositely moving frame 31 is used to drive the aligning rack 32 to clamp the circuit board, so that the circuit boards are aligned in the vertical direction. The transverse movement mechanism 51 and the lifting cylinders 53 are also used to drive the vacuum chuck 54 to approach and adsorb the circuit board to rise, and a plurality of lifting cylinders 53 are used to perform the kneading action, so that the circuit board is bent to a certain extent within the deformation range, so that the circuit board adsorbed under the circuit board due to electrostatic force falls back onto the lifting material rack 2, thereby ensuring that only a single circuit board is stably fed each time.

[0021] Preferably, the transverse movement mechanism 51 includes a limit guide rail 511 arranged on the connecting plate 52, a limit block 512 fixedly installed on the base frame 1 and cooperating with the limit guide rail 511, and a transverse movement cylinder 513 fixedly installed on the base frame 1 with its movable end fixedly connected to the connecting plate 52. When the transverse movement cylinder 513 extends, it pushes the lifting air pipe to move outwards. When the vacuum chuck 54 adsorbs the circuit board, the transverse movement cylinder 513 contracts to send one end of the circuit board into the feeding roller group 4.

[0022] Preferably, the lifting cylinder 53 is arranged at one end of the connecting plate 52 close to the lifting platform 21, the movable end of the lifting cylinder 53 faces the circuit board, and the vacuum chuck 54 is fixedly installed on the movable end of the lifting cylinder 53. In this embodiment, 4 lifting cylinders 53 are provided. The kneading action includes that after the vacuum discs at the ends of the 4 lifting cylinders 53 all adsorb the circuit board, the 4 lifting cylinders 53 contract to the highest position, and then the two outermost lifting cylinders 53 continuously extend and contract for more than 2 cycles according to a pulsating rhythm; during this period, the two outermost lifting air pipes extend, while the two inner lifting cylinders 53 contract, so that the circuit board is bent within the allowable deformation range, so as to facilitate the destruction of the electrostatic force between the two circuit boards and make the redundant circuit boards fall off.

[0023] Preferably, the lifting and loading rack 2 further includes a lifting motor 22, a threaded shaft 23 fixedly connected to the output shaft of the lifting motor 22, a first guide rail 24 arranged in parallel with the threaded shaft 23, and a lifting end 25 sleeved on the threaded shaft 23 and limited on one side within the first guide rail 24; the side surface of the lifting end 25 is fixed to the lifting table 21. By rotating the lifting motor 22, the threaded shaft 23 rotates, thereby driving the lifting end 25 and the lifting table 21 to lift, so as to raise the circuit board and make the circuit board close to the lifting cylinder 53.

[0024] Preferably, the opposing moving rack 31 includes a fixed part 311, a movable part 312, a second guide rail 313, a transmission shaft 314 symmetrically provided with a right-handed thread and a left-handed thread, and a driving part 315; the fixed part 311 is fixedly connected to the base frame 1, both ends of the second guide rail 313 and the transmission shaft 314 are hinged to the fixed part 311, the movable part 312 is arranged on the second guide rail 313 and the transmission shaft 314, the second guide rail 313 is slidably connected to the movable part 312, and the transmission shaft 314 is threadedly connected to the movable part 312; the movable part 312 is fixedly connected to the sorting rack 32. By driving the transmission shaft 314 to rotate through the driving part 315, the movable parts 312 located on the right-handed thread and the left-handed thread approach or move away from each other, so as to realize clamping the circuit board by the sorting rack 32 and make the circuit board neatly arranged. Preferably, the driving part 315 is a rotating handwheel or a rotating motor.

[0025] The technical effect of the present invention is mainly reflected in that: the stacked circuit boards are sent to the side of the feeding roller group by the lifting and loading rack, the sorting rack is driven by the opposing moving rack to clamp the circuit board, so that the circuit boards are aligned in the vertical direction. The vacuum suction cup is also driven by the transverse movement mechanism and the lifting cylinder to approach and adsorb the circuit board to rise, and a plurality of lifting cylinders are used for rubbing actions, so that the circuit board is bent to a certain extent within the deformation range, so that the circuit board adsorbed under the circuit board due to electrostatic force falls back to the lifting and loading rack, thereby ensuring that only a single circuit board is stably fed each time.

[0026] Of course, the above are only typical examples of the present invention. In addition, the present invention can also have many other specific implementation manners. Any technical solutions formed by equivalent replacement or equivalent transformation fall within the scope of protection required by the present invention.

Claims

1. A stable feeding mechanism for circuit board detection, characterized in that, It includes a base frame, a lifting and feeding rack, a clamping and aligning component, a feeding roller group, and an adsorption and kneading component; the lifting and feeding rack is arranged at the inner bottom of the base frame, the feeding roller group is arranged inside the base frame and above the lifting and feeding rack, the adsorption and kneading component is arranged inside the base frame and above the feeding roller group, the lifting and feeding rack includes a lifting platform, the adsorption and kneading component includes a transverse movement mechanism for approaching the lifting platform, a connecting plate, several lifting cylinders for realizing the kneading action, and a vacuum suction cup for sucking the circuit board; the clamping and aligning component includes an opposing moving frame and an aligning rack arranged on the opposing moving frame, and the aligning rack is located on both sides of the lifting platform.

2. The stable loading mechanism for circuit board detection according to claim 1, wherein, The transverse movement mechanism includes a limit guide rail arranged on the connecting plate, a limit block fixedly installed on the base frame and cooperating with the limit guide rail, and a transverse movement cylinder fixedly installed on the base frame with its movable end fixedly connected to the connecting plate.

3. The stable feeding mechanism for circuit board detection according to claim 1, characterized in that, The lifting cylinder is arranged at one end of the connecting plate close to the lifting platform, the movable end of the lifting cylinder faces the circuit board, and the vacuum suction cup is fixedly installed on the movable end of the lifting cylinder.

4. A stable feeding mechanism for circuit board detection according to claim 1, characterized in that The lifting and feeding rack further includes a lifting motor, a threaded shaft fixedly connected to the output shaft of the lifting motor, a first guide rail arranged parallel to the threaded shaft, and a lifting end sleeved on the threaded shaft with one side limited inside the first guide rail; the side surface of the lifting end is fixedly connected to the lifting platform.

5. The stable loading mechanism for circuit board detection according to claim 1, characterized in that, The opposing moving frame includes a fixed part, a movable part, a second guide rail, a transmission shaft symmetrically provided with a right-handed thread and a left-handed thread, and a driving part; the fixed part is fixedly connected to the base frame, both ends of the second guide rail and the transmission shaft are hinged to the fixed part, the movable part is arranged on the second guide rail and the transmission shaft, the second guide rail is slidably connected to the movable part, and the transmission shaft is threadedly connected to the movable part; the movable part is fixedly connected to the aligning rack.

6. The stable feeding mechanism for circuit board detection according to claim 5, characterized in that, The driving part is a rotating handwheel or a rotating motor.

Images