A device for removing process edges of PCBA boards

Abstract

The invention discloses a device for removing the process edge of a PCBA board, comprising a rotating disk (30) and a trimming board (40), wherein the rotating disk (30) is fixed on a workbench, the trimming board (40) is rotatably fixed on the rotating disk (30), at least one notch (41) for placing the process edge of the PCBA board is provided on the trimming board (40) along the length direction, and the trimming board (40) is arranged to be inclined with respect to a horizontal plane. The invention has the advantages that: the invention enables the trimmed edge to slide directly through the cooperation of the rotating disk and the trimming board, has a simple structure, is easy to operate, simplifies the process of removing the process edge of the PCBA board, and thus improves efficiency.

Description

Technical Field

[0001] The present invention relates to the technical field of PCBA, and more particularly to a device for removing a process edge of a PCBA board. Background Art

[0002] PCBA (Printed Circuit Board Assembly) is a printed circuit board that has been assembled with components. It is widely used in various fields such as aviation, CNC, computers, and automated instruments. Due to the requirements of manufacturing and logistics, a process edge needs to be reserved on the edge of the PCBA board to achieve the purpose of transmission on the guide rail, but this process edge is not needed for the product. Therefore, it is necessary to remove the process edge of the finished PCBA board.

[0003] The methods of removing the process edge of PCBA boards can be roughly divided into three categories: V-cut board splitter, Router board splitter and manual board splitter. From the perspective of quality alone, the Router board splitter has the best effect, but it is expensive; the V-cut board splitter can only cut straight V-groove boards, and the blade consumables are expensive; manual board splitter has the worst effect and is prone to stress that damages components, but it is low-cost and easy to use. For small-batch, multi-variety, and low-cost production needs, manual board edge removal is the most practical, so the contradictions between batch, cost, and reliability are highlighted.

[0004] Patent application number CN201320129984.4, "An adjustable manual auxiliary device for removing the process edge of PCBA board", discloses a device for removing the process edge of PCBA board, which takes into account issues such as batch, cost and reliability. The device includes a mounting base, a movable slider, a slider base, a transmission structure and an adjustment button. Figure 1 As shown, the adjustable auxiliary device for manually removing the process edge of the PCBA board includes: a mounting base plate 1, a movable slider 2, a slider base 3, a transmission structure 5 and an adjustment button 6. When working, the slider base 3 is fixed to the mounting base plate 1, the transmission structure 5 and the adjustment button 6 are installed inside the slider base 3, and the movable slider 2 is installed on the slider base 3 through a guide rail. After the movable slider 2 is driven to move to a suitable distance along the set track on the slider base 3 by manually adjusting the adjustment button 6 via the transmission structure 5, the PCBA board 4 with the process edge is placed in the slot of the device, and finally the PCBA board 4 is fixed, so that the function of manually removing the process edge can be realized.

[0005] The device is a movable slider 2 that clamps the process edge of the PCBA board 4. Therefore, the movable slider 2 needs to be tightened each time before the process edge can be removed, and the removed process edge still remains in the device. At this time, the movable slider 2 must be loosened and then the process edge is taken out. This operation is cumbersome and inefficient. Summary of the invention

[0006] The technical problem to be solved by the present invention is how to simplify the process of removing the process edge of the PCBA board, thereby improving the production efficiency.

[0007] The present invention solves the above technical problems through the following technical solutions, and the specific technical solutions are as follows: a device for removing the process edge of a PCBA board, comprising a rotating disk (30) and a trimming board (40), wherein the rotating disk (30) is fixed on a workbench, and the trimming board (40) is rotatably fixed on the rotating disk (30), and the trimming board (40) is provided with at least one first notch (41) for placing the process edge of the PCBA board along the length direction, and the bottom surface of the first notch (41) of the trimming board (40) is inclined with respect to a horizontal plane. The present invention cooperates with the rotating disk (30) and the trimming board (40), so that the trimmed edge falls into the first notch (41) of the trimming board (40), and the bottom surface of the first notch (41) of the trimming board (40) is inclined with respect to a horizontal plane, so that the trimmed edge directly slides down along the bottom surface of the first notch (41), and the whole structure is simple and easy to operate, thereby simplifying the process of removing the process edge of the PCBA board, thereby improving efficiency.

[0008] As a further optimized technical solution, the device for removing the process edge of a PCBA board further comprises a base (20), and the rotating disk (30) is fixed on the workbench through the base (20).

[0009] As a further optimized technical solution, the device for removing the process edge of a PCBA board further comprises a support frame (10), the base (20) is fixed on the support frame (10), and the support frame (10) is fixed together with the workbench.

[0010] The fixing method of the base (20) and the support frame (10) includes the following three optimized technical solutions:

[0011] 1. The support frame (10) is provided with a long strip groove (11) in the middle along the length direction, the top opening width of the long strip groove (11) is smaller than the middle width, and first mounting holes (21) are respectively provided on both sides of the base (20), the first mounting holes (21) are through holes, a T-shaped head of a T-shaped screw (212) is accommodated in the middle part of the long strip groove (11), the longitudinal dimension of the T-shaped head is larger than the top opening width of the long strip groove (11) but smaller than the middle width of the long strip groove (11), so that the T-shaped head is limited in the long strip groove (11), the threaded column of the T-shaped screw (212) passes through the first mounting hole (21) of the base (20) from the back, and the protruding part is screwed into a nut;

[0012] 2. The support frame (10) is provided with a long strip groove (11) in the middle along the length direction, the top opening width of the long strip groove (11) is smaller than the middle width, and first mounting holes (21) are respectively provided on both sides of the base (20), the first mounting hole (21) is a through hole, one end of a bolt is screwed into a nut, the nut is accommodated in the middle part of the long strip groove (11), the size of the nut is larger than the top opening width of the long strip groove (11) but smaller than the middle width of the long strip groove (11), the other end of the bolt passes through the first mounting hole (21) of the base (20) from the back, and the protruding part is screwed into another nut;

[0013] 3. The support frame (10) is provided with a long strip groove (11) in the middle along the length direction, the top opening width of the long strip groove (11) is smaller than the middle width, the base (20) is provided with a first mounting hole (21) on both sides, the first mounting hole (21) is a through hole, a slider nut is accommodated in the middle part of the long strip groove (11), the size of the slider nut is larger than the top opening width of the long strip groove (11) but smaller than the middle width of the long strip groove (11), a screw passes through the first mounting hole (21) of the base (20) and is screwed into the slider nut.

[0014] As a further optimized technical solution, the base (20) and the rotating disk (30) are locked by screws, and the locking method can be any of the following two:

[0015] 1. A plurality of second mounting holes (22) are also provided in the middle of the base (20), the second mounting holes (22) are through holes, a plurality of third mounting holes (32) are provided on the rotating disk (30) corresponding to the second mounting holes (22) of the base (20), the third mounting holes (32) are threaded holes, a screw is passed through the second mounting holes (22) from the rear of the base (20) and then screwed into the third mounting holes (32) of the rotating disk (30);

[0016] 2. A plurality of second mounting holes (22) are also provided in the middle portion of the base (20), the second mounting holes (22) are threaded holes, a plurality of third mounting holes (32) are provided on the rotating disk (30) corresponding to the second mounting holes (22) of the base (20), the third mounting holes (32) are through holes, a screw is passed through the third mounting holes (32) from the front of the rotating disk (30) and then screwed into the second mounting holes (22) of the base (20).

[0017] As a further optimized technical solution, arc-shaped slots (31) are symmetrically provided on both sides of the rotating disk (30), and the two arc-shaped slots (31) are located on the same circumference.

[0018] As a further optimized technical solution, the central angle corresponding to each arc-shaped notch (31) is greater than 0 degrees and less than or equal to 180 degrees.

[0019] As a further optimized technical solution, a plurality of screw holes (42) are provided on the back of the trimming board (40), and the top opening width of the arc-shaped notch (31) is smaller than the middle width. A screw is passed through the arc-shaped notch (31) from the back of the rotating disk (30) and then screwed into the screw hole (42) of the trimming board (40), thereby fixing the trimming board (40) on the rotating disk (30), and the screw head of the screw is accommodated in the arc-shaped notch (31).

[0020] As a further optimized technical solution, the sizes of several of the first notches (41) are different.

[0021] Compared with the prior art, the present invention has the following advantages:

[0022] 1. The present invention has a simple structure and convenient operation through the cooperation of the rotating disk and the trimming plate, which simplifies the process of removing the process edge of the PCBA board and thus improves the efficiency;

[0023] 2. The angle of the trimming board can be adjusted according to actual needs, so that the process edge of the PCBA board can be directly dropped along the notch of the trimming board after being removed. The bottom of the dropped process edge can also be recycled in the recycling box, without the need for manual cleaning every time, which greatly improves efficiency;

[0024] 3. There are multiple notches on the trimming board, which can fix and install process edges of different thicknesses and widths, so that the device can meet the trimming requirements of PCBA boards of different specifications. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 The present invention is a structural schematic diagram of an existing auxiliary device for manually removing the process edge of a PCBA board.

[0026] Figure 2 This is a schematic diagram of a partially exploded structure from a front perspective of an apparatus for removing a process edge of a PCBA board according to a first embodiment of the present invention.

[0027] Figure 3 This is a schematic structural diagram of a device for removing a process edge of a PCBA board after assembly from a front view according to a first embodiment of the present invention.

[0028] Figure 4 This is a schematic diagram of a partially exploded structure from a back view of a device for removing a process edge of a PCBA board according to a first embodiment of the present invention.

[0029] Figure 5 This is a schematic structural diagram of a support frame of a device for removing a process edge of a PCBA board according to a first embodiment of the present invention.

[0030] Figure 6 This is a structural schematic diagram of a base of a device for removing a process edge of a PCBA board according to a first embodiment of the present invention.

[0031] Figure 7 This is a schematic structural diagram of a rotating disk of a device for removing a process edge of a PCBA board according to a first embodiment of the present invention.

[0032] Figure 8 This is a front structural schematic diagram of a trimming plate of a device for removing a process edge of a PCBA board according to a first embodiment of the present invention.

[0033] Fig. 9 The present invention is a schematic diagram of the back structure of a trimming plate of a device for removing a process edge of a PCBA board according to a first embodiment of the present invention. DETAILED DESCRIPTION

[0034] The following is a detailed description of an embodiment of the present invention. This embodiment is implemented on the premise of the technical solution of the present invention, and a detailed implementation method and a specific operation process are given, but the protection scope of the present invention is not limited to the following embodiment.

[0035] In the description of the present invention, it should be noted that the terms "inside", "outside", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, 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 understood as a limitation on the present invention.

[0036] Embodiment 1:

[0037] like Figures 2 to 4 As shown, a device for removing the process edge of a PCBA board includes: a support frame 10, a base 20, a rotating disk 30, and a trimming plate 40.

[0038] As a specific solution, the support frame 10 is fixed under the work surface and can be fixed by various existing technologies such as screws or adhesives. The support frame 10 can be an aluminum alloy structure. Figure 5 As shown, the support frame 10 has a long groove 11 with a width of 8 mm in the middle along the length direction, the top opening width of the long groove 11 is smaller than the middle width, and the long groove 11 faces the side. Of course, the support frame 10 can be fixed anywhere on the workbench, as long as the long groove 11 faces the side, and there is no special requirement for the size of the long groove 11, as long as it can meet the requirements of the mounting base 20.

[0039] The base 20 is fixed to a side of the support frame 10 where the long groove 11 is opened. Figure 6As shown, specifically, a first mounting hole 21 is respectively provided on both sides of the base 20, and the first mounting hole 21 is a through hole. A T-shaped head of a T-shaped screw 212 is accommodated in the middle part of the long strip groove 11, and the longitudinal dimension of the T-shaped head is larger than the top opening width of the long strip groove 11 but smaller than the middle width of the long strip groove 11. Because the top opening width of the long strip groove 11 is smaller than the middle width, the T-shaped screw 212 is limited in the long strip groove 11, and the threaded column of the T-shaped screw 212 passes through the first mounting hole 21 of the base 20 from the back, and the protruding part is screwed into a nut (not shown), thereby fixing the base 20 to the support frame 10. Of course, other fixing methods can also be used, such as:

[0040] A bolt is used, one end of which is screwed into a nut, the size of which is larger than the top opening width of the elongated slot 11 but smaller than the middle width of the elongated slot 11, and then the nut is limited in the elongated slot 11, and the other end of the bolt passes through the first mounting hole 21 of the base 20 from the back, and the protruding part is screwed into another nut, so as to fix the base 20 and the support frame 10;

[0041] Alternatively, a slider nut is accommodated in the middle portion of the elongated slot 11, the size of the slider nut being larger than the top opening width of the elongated slot 11 but smaller than the middle width of the elongated slot 11, and a screw passes through the first mounting hole 21 of the base 20 and is screwed into the slider nut.

[0042] Four second mounting holes 22 are further provided in the middle portion of the base 20 . The second mounting holes 22 are through holes or threaded holes.

[0043] The rotating disk 30 is fixedly connected to the base 20. Figure 7 , four third mounting holes 32 are provided on the rotating disk 30 corresponding to the four second mounting holes 22 of the base 20, and the third mounting holes 32 are through holes or threaded holes. A specific connection method is: the second mounting hole 22 is a threaded hole, the third mounting hole 32 is a through hole, a screw passes through the third mounting hole 32 from the front of the rotating disk 30 and is screwed into the second mounting hole 22 of the base 20, thereby fixing the rotating disk 30 on the base 20. Of course, the following connection method can also be used: the second mounting hole 22 is a through hole, the third mounting hole 32 is a threaded hole, a screw passes through the second mounting hole 22 from the back of the base 20 and is screwed into the third mounting hole 32 of the rotating disk 30, thereby fixing the rotating disk 30 on the base 20. Arc-shaped slots 31 are symmetrically provided on both sides of the rotating disk 30, and the two arc-shaped slots 31 are located on the same circumference. The center angle of the arc-shaped slots 31 can be set according to the angle to be adjusted. In the present embodiment, the center angle of each arc-shaped slot 31 is 100 degrees, and the rotation angle of the rotating disk 30 can reach -50° to 50°. Of course, the center angle of each arc-shaped slot 31 can be greater than 0 degrees and less than or equal to 180 degrees.

[0044] See also Figure 8 and Fig. 9 The trimming plate 40 is provided with at least one notch 41 along the length direction. If a plurality of notches 41 are provided, the sizes of the plurality of notches 41 are different, so that different notches 41 can be used to place PCBA boards with process edges of different thicknesses and widths. In this embodiment, five notches 41 of different sizes are provided, and the sizes of the five notches 41 are respectively: 2.0*2.5mm, 2.2*2.5mm, 2.4*2mm, 2.4*3mm, and 2.4*5mm. The back of the trimming board 40 is provided with two screw holes 42, and the top opening width of the arc-shaped notch 31 is smaller than the middle width. A screw is used to pass through the arc-shaped notch 31 from the back of the rotating disk 30 and then screwed into the screw hole 42 of the trimming board 40, so as to fix the trimming board 40 on the rotating disk 30. The screw head size of the screw is larger than the top opening width of the arc-shaped notch 31 and smaller than the middle width of the arc-shaped notch 31, so the screw head is accommodated in the arc-shaped notch 31 and keeps the surface of the rotating disk 30 flat. In actual use, the inclination angle of the trimming board 40 is adjusted according to the required angle, and then the screw is tightened to fix the trimming board 40 on the rotating disk 30.

[0045] During assembly, first fix the support frame 10 under the work surface, then fix the base 20 on the support frame 10, fix the trimming board 40 on the rotating disk 30, and then fix the rotating disk 30 to the base 20. Alternatively, the assembly can be performed in the following order: fix the support frame 10 under the work surface, fix the trimming board 40 on the rotating disk 30, then fix the rotating disk 30 to the base 20, and finally fix the base 20 on the support frame 10.

[0046] During operation, the trimming board 40 is rotated to adjust the tilt angle of the trimming board 40, and then the trimming board 40 is tightened by tightening the screws. The PCBA board with the process edge to be trimmed is placed in the notch 41 of the corresponding size on the trimming board 40, and then the process edge is removed. The removed process edge of the PCBA board falls directly along the notch 41 of the trimming board 40. A recycling box (not shown) can be placed below the exit of the notch 41 of the trimming board 40, and the fallen process edge can be directly recycled with the recycling box without having to take it manually, which is convenient to operate and greatly improves efficiency.

[0047] Embodiment 2:

[0048] The difference between the second embodiment and the first embodiment is that the supporting frame 10 is missing, and the base 20 can be directly fixed on other platforms, as long as the trimming board 40 is tilted with respect to the horizontal plane.

[0049] Embodiment three:

[0050] The difference between the second embodiment and the first embodiment is that the supporting frame 10 and the base 20 are omitted, and the rotating disk 30 is directly fixed on other platforms, and it is sufficient to ensure that the trimming board 40 is inclined with respect to the horizontal plane, thereby making the device structure simpler.

[0051] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A device for removing a process edge of a PCBA board, comprising a trimming board (40), wherein the trimming board (40) is provided with a first notch (41) for placing the process edge of the PCBA board along the length direction, and the bottom surface of the first notch (41) of the trimming board (40) is inclined to a horizontal plane, characterized in that: The machine also comprises a rotating disk (30), a base (20) and a support frame (10), wherein the rotating disk (30) is fixed to the base (20), a long strip groove (11) is provided in the middle of the support frame (10) along the length direction, the base (20) is fixed above the long strip groove (11) and can move along the long strip groove (11) when loose, the support frame (10) is fixed to the workbench, the trimming plate (40) is rotatably fixed to the rotating disk (30), and the sizes of the plurality of the first grooves (41) are different; arc-shaped grooves (31) are symmetrically provided on both sides of the rotating disk (30); ), the two arc-shaped notches (31) are located on the same circumference, a plurality of screw holes (42) are provided on the back of the trimming plate (40), the top opening width of the arc-shaped notch (31) is smaller than the middle width, a screw passes through the arc-shaped notch (31) from the back of the rotating disk (30) and is screwed into the screw hole (42), so as to fix the trimming plate (40) on the rotating disk (30), the screw head size of the screw is larger than the top opening width of the arc-shaped notch (31) and smaller than the middle width of the arc-shaped notch (31), and the screw head is accommodated in the arc-shaped notch (31).

2. The device for removing the process edge of a PCBA board according to claim 1, characterized in that: The top opening width of the elongated groove (11) is smaller than the middle width. The base (20) is provided with first mounting holes (21) on both sides. The first mounting holes (21) are through holes. A T-shaped head of a T-shaped screw (212) is accommodated in the middle part of the elongated groove (11). The longitudinal dimension of the T-shaped head is larger than the top opening width of the elongated groove (11) but smaller than the middle width of the elongated groove (11). The threaded column of the T-shaped screw (212) passes through the first mounting hole (21) of the base (20) from the back, and the protruding part is screwed into a nut.

3. The device for removing the process edge of a PCBA board according to claim 1, characterized in that: The top opening width of the elongated groove (11) is smaller than the middle width. First mounting holes (21) are respectively provided on both sides of the base (20). The first mounting holes (21) are through holes. One end of a bolt is screwed into a nut. The nut is accommodated in the middle part of the elongated groove (11). The size of the nut is larger than the top opening width of the elongated groove (11) but smaller than the middle width of the elongated groove (11). The other end of the bolt passes through the first mounting hole (21) of the base (20) from the back, and the protruding part is screwed into another nut.

4. The device for removing the process edge of a PCBA board according to claim 1, characterized in that: The top opening width of the elongated slot (11) is smaller than the middle width. First mounting holes (21) are respectively provided on both sides of the base (20). The first mounting holes (21) are through holes. A slider nut is accommodated in the middle part of the elongated slot (11). The size of the slider nut is larger than the top opening width of the elongated slot (11) but smaller than the middle width of the elongated slot (11). A screw passes through the first mounting hole (21) of the base (20) and is screwed into the slider nut.

5. The device for removing the process edge of a PCBA board according to claim 1, characterized in that: The base (20) and the rotating disk (30) are fixed by screws.

6. The device for removing the process edge of a PCBA board according to claim 5, characterized in that: The base (20) is also provided with a plurality of second mounting holes (22) in the middle thereof, the second mounting holes (22) being through holes, and the rotating disk (30) is provided with a plurality of third mounting holes (32) corresponding to the second mounting holes (22) of the base (20), the third mounting holes (32) being threaded holes, and a screw is passed through the second mounting holes (22) from the rear of the base (20) and then screwed into the third mounting holes (32) of the rotating disk (30).

7. The device for removing the process edge of a PCBA board according to claim 5, characterized in that: The base (20) is also provided with a plurality of second mounting holes (22) in the middle thereof, the second mounting holes (22) being threaded holes, and the rotating disk (30) is provided with a plurality of third mounting holes (32) corresponding to the second mounting holes (22) of the base (20), the third mounting holes (32) being through holes, and a screw is passed through the third mounting holes (32) from the front of the rotating disk (30) and then screwed into the second mounting holes (22) of the base (20).

8. The device for removing the process edge of a PCBA board according to claim 1, characterized in that: The central angle corresponding to each arc-shaped notch (31) is greater than 0 degrees and less than or equal to 180 degrees.

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