PCB cutting mechanism

Abstract

The utility model discloses a PCB (printed circuit board) cutting mechanism which comprises a rack and a fixed platform arranged at the top of the rack. The fixing platform comprises a positioning assembly, and the positioning assembly comprises a first fixing plate, a second fixing plate and a sliding limiting plate. The sliding limiting plate is arranged close to one side of the rack. The first fixing plate and the second fixing plate are arranged at the two ends of the sliding limiting plate in the first direction to define a fixing space. The side, away from the second fixing plate, of the first fixing plate and the side, away from the first fixing plate, of the second fixing plate are provided with sliding grooves corresponding in position. The two ends of the sliding limiting plate are provided with sliding parts matched with the sliding grooves in a concave-convex mode, so that the sliding limiting plate can slide along the first fixing plate and the second fixing plate, and therefore the size of the fixing space is changed to adapt to PCBs of different sizes.

Description

Technical Field

[0001] The utility model relates to the technical field of PCB board production equipment, in particular to a PCB board cutting mechanism. Background Art

[0002] PCB, or printed circuit board, is one of the important components of the electronics industry. Almost every electronic device, from electronic watches and calculators to computers, communication electronic equipment, and military weapon systems, as long as there are electronic components such as integrated circuits, must use printed circuit boards to make electrical interconnections between the various components. With the development of electronic products, more and more types of components are used in PCBs. During the welding process of PCBs, it is easy to have problems with unqualified welding, or PCB boards that have been shipped out of the factory may be damaged during later use. Therefore, it is necessary to repair the problematic circuit boards.

[0003] PCB boards are essential components in electronic products. During the production of electronic products, PCB boards need to be separated by a PCB separator. A PCB separator is a machine that separates multiple PCB boards that are set together by cutting off their ribs to separate them into individual PCB boards. Existing PCB board rough material cutting machines have a single fixed platform size. When cutting PCB boards of different material numbers, it is necessary to replace fixed platforms of different sizes to adapt to them, which affects the overall work efficiency. Utility Model Content

[0004] In order to overcome the above shortcomings, the purpose of the present invention is to provide a PCB board cutting mechanism to solve the problem proposed in the above background technology that when cutting PCB boards of different material numbers, it is necessary to replace fixed platforms of different sizes, thereby affecting the overall work efficiency.

[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is a PCB board cutting mechanism, comprising: a frame and a fixed platform, wherein the frame extends along a first direction. The fixed platform is arranged on the top of the frame along a second direction. The fixed platform comprises a positioning assembly, and the positioning assembly comprises a first fixed plate, a second fixed plate and a sliding limit plate.

[0006] The sliding limit plate extends along the first direction and is arranged close to one side of the frame along the third direction, and the first direction, the second direction and the third direction are perpendicular to each other. The first fixing plate and the second fixing plate both extend along the third direction and are arranged along the second direction at two ends of the sliding limit plate along the first direction to enclose a fixed space.

[0007] A side of the first fixing plate away from the second fixing plate, and a side of the second fixing plate away from the first fixing plate, are provided with corresponding sliding grooves. Both ends of the sliding limit plate along the first direction are provided with sliding parts that match the sliding grooves concavely and convexly, so that the sliding limit plate can slide along the first fixing plate and the second fixing plate.

[0008] The utility model provides a PCB board cutting mechanism provided by the present application, wherein a fixed space surrounded by a first fixed plate, a second fixed plate and a sliding limit plate is used to fix a PCB board to be cut. Furthermore, the linkage mode between the sliding limit plate and the first fixed plate and the second fixed plate is changed, and the sliding limit plate can be moved along the second direction through the provided sliding groove and the sliding part, thereby changing the size of the fixed space to adapt to PCB boards of different sizes.

[0009] In some embodiments, the fixed platform further includes a pressing assembly. The pressing assembly is disposed on the top of the frame and on a side of the first fixed plate away from the fixed space. The pressing assembly includes a side plate, an upper pressing plate and a lower pressing plate. The side plate extends along the second direction. The upper pressing plate and the lower pressing plate both extend along the first direction and are spaced apart on a side of the side plate facing the upper pressing plate to enclose a pressing area extending along the third direction.

[0010] In some embodiments, the pressing assembly further includes a connecting plate and a lifting cylinder. The connecting plate extends along the first direction, one end of which is connected to the sliding limit plate, and the other end is located at the top of the downward pressing. The lifting cylinder is arranged on the same side as the upper pressing plate, and the lifting connecting end at the bottom is connected to the upper pressing plate, which is used to drive the upper pressing plate to move along the second direction and cooperate with the lower pressing plate to press and fix the connecting plate.

[0011] With the above technical solution, the function of the pressing assembly is to fix the sliding limit plate after adjustment. One end of the connecting plate is connected to the sliding limit plate, so that it moves synchronously with it, and the other end is placed between the upper pressing plate and the lower pressing plate, that is, in the pressing area. When the position of the sliding limit plate is determined, the lifting cylinder drives the upper pressing plate to press down, and cooperates with the lower pressing plate to press and fix the connecting plate, thereby completing the limit of the sliding limit plate.

[0012] In some embodiments, the fixed platform further includes a cutting through hole, the cutting through hole extending along the first direction and arranged close to one side of the frame along the third direction. The first fixing plate and the second fixing plate are arranged between the sliding limit plate and the cutting through hole.

[0013] By adopting the above technical solution, the cutting through hole is the path to be cut, and the position of the PCB board that needs to be cut corresponds to it. The sliding limit plate is moved to abut against the other end of the PCB board to determine the position, and then the sliding limit plate is fixed by the pressing assembly to fix the PCB board.

[0014] In some embodiments, the PCB board cutting mechanism further comprises a cutting mechanism. The cutting mechanism is arranged in the frame of the cutting mechanism and is located below the fixed platform along the second direction. The cutting mechanism comprises a cutter and a driving device. The cutter can rotate along a circumferential direction and is arranged in the cutting through hole, and the circumferential direction surrounds the third direction. The driving device is used to drive the cutter to rotate and move along the cutting through hole to cut the PCB board.

[0015] In some embodiments, the driving device includes a mobile platform. The mobile platform includes a base, a first synchronous wheel, a second synchronous wheel, a synchronous belt and a first driving motor. The base extends along the first direction. The first synchronous wheel and the second synchronous wheel are rotatably arranged at both ends of the top of the base along the first direction. The synchronous belt is wound between the first synchronous wheel and the second synchronous wheel. The first driving motor is used to drive the first synchronous wheel and the second synchronous wheel to rotate along the circumferential direction.

[0016] By adopting the above technical solution, the mobile platform adopts a wheel-belt structure, and the reciprocating motion of the synchronous belt is realized by the first drive motor.

[0017] In some embodiments, the driving device further comprises a fixed frame, a connecting block, a linear guide rail group and a second driving motor. The bottom of the fixed frame is arranged in the synchronous belt and is connected and fixed to the synchronous belt through the connecting block. The linear guide rail group is respectively arranged on both sides of the synchronous belt along the third direction, and is used to connect the fixed frame and the base, so that the fixed frame moves synchronously with the synchronous belt along the first direction through the first driving motor. The second driving motor is arranged at the top of the fixed frame, and is used to connect and drive the cutter.

[0018] By adopting the above technical solution, the top of the fixed frame carries a second drive motor for driving the cutter to rotate, and the bottom is connected and fixed to the synchronous belt through a connecting pressure block, so that the rotating cutter can move and cut in the cutting hole as the synchronous belt moves.

[0019] In some embodiments, the cutting mechanism further includes a dust collecting device. The dust collecting device is disposed between the fixed platform and the cutting mechanism and includes a conical funnel and a dust collecting box. The conical funnel is sleeved on the portion of the cutter away from the cutting through hole and is connected to the dust collecting box pipeline.

[0020] With the above technical solution, a conical funnel is arranged at the bottom of the cutter to collect dust and debris ejected downward when the cutter cuts the PCB board. The dust and debris flow along the pipeline and are collected in the dust collecting box.

[0021] In some embodiments, the fixed platform further includes a pressing plate assembly. The pressing plate assembly is disposed on a side of the cutting through hole away from the sliding limit plate. The pressing plate assembly includes a first connecting end, a second connecting end, and a pressing plate. The first connecting end and the second connecting end are respectively disposed corresponding to the first fixed plate and the second fixed plate. The pressing plate extends along the first direction, one end is hingedly connected to the first connecting end, and the other end is detachably connected to the second connecting end, so that the pressing plate can rotate along the first connecting end, and a foam is disposed at the bottom of the pressing plate.

[0022] With the above technical solution, when placing or removing the PCB, the pressing plate is separated from the second connection end and moves away from the fixing space. After the PCB is fixed in the fixing space, the pressing plate is fixed to the second connection end, and the PCB is pressed down by the foam at the bottom of the pressing plate for auxiliary fixing.

[0023] In some embodiments, a protective cover is provided on one side of the cutting through hole along the first direction away from the fixed platform, so as to protect the cutting knife after the cutting is completed. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a three-dimensional diagram of an embodiment of a PCB board cutting mechanism of the utility model;

[0025] In the figure:

[0026] 1-PCB board cutting mechanism;

[0027] 2- rack;

[0028] 3-Fixed platform;

[0029] 4-positioning assembly; 40-first fixing plate; 41-second fixing plate; 42-sliding limiting plate; 43-fixing space; 44-sliding groove; 45-sliding part;

[0030] 5-pressing assembly; 50-side plate; 51-upper pressing plate; 52-lower pressing plate; 53-connecting plate; 54-lifting cylinder;

[0031] 6-cut through hole; 60-protective cover;

[0032] 7-cutting mechanism; 70-cutter; 710-moving platform; 711-base; 712-first synchronous wheel; 713-synchronous belt; 71-fixed frame; 72-connecting pressure block; 73-linear guide rail assembly;

[0033] 8-dust collecting device; 80-conical funnel; 81-dust collecting box;

[0034] 9-pressing plate assembly; 90-first connecting end; 91-second connecting end; 92-pressing plate; 920-foam. DETAILED DESCRIPTION

[0035] The preferred embodiments of the present invention are described in detail below in conjunction with the accompanying drawings so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby making a clearer and more definite definition of the protection scope of the present invention.

[0036] refer to Figure 1 , Figure 1 A three-dimensional diagram of a PCB board cutting mechanism 1 provided in an embodiment of the utility model is shown.

[0037] like Figure 1 As shown, the technical solution adopted by the utility model is a PCB board cutting mechanism 1, comprising: a frame 2 and a fixed platform 3, wherein the frame 2 is along a first direction ( Figure 1 The fixed platform 3 is arranged on the frame 2 along the second direction ( Figure 1 The fixed platform 3 includes a positioning assembly 4, and the positioning assembly 4 includes a first fixed plate 40, a second fixed plate 41 and a sliding limit plate 42.

[0038] The sliding limit plate 42 extends along the first direction and is close to the frame 2 along the third direction ( Figure 1 The first fixing plate 40 and the second fixing plate 41 are both extended along the third direction and are arranged along the second direction at both ends of the sliding limit plate 42 along the first direction to enclose a fixed space 43.

[0039] A side of the first fixing plate 40 away from the second fixing plate 41 and a side of the second fixing plate 41 away from the first fixing plate 40 are provided with corresponding slide grooves 44. Both ends of the sliding limit plate 42 along the first direction are provided with sliding parts 45 that are concavely matched with the slide grooves 44, so that the sliding limit plate 42 can slide along the first fixing plate 40 and the second fixing plate 41, thereby changing the size of the fixing space 43 to adapt to PCB boards of different sizes.

[0040] The PCB board cutting mechanism 1 provided in the present application, wherein a fixed space 43 surrounded by a first fixed plate 40, a second fixed plate 41 and a sliding limit plate 42 is used to fix the PCB board to be cut. Furthermore, the linkage mode between the sliding limit plate 42 and the first fixed plate 40 and the second fixed plate 41 is changed, and the sliding limit plate 42 can be moved along the second direction through the provided sliding groove 44 and the sliding part 45, thereby changing the size of the fixed space 43 to adapt to PCB boards of different sizes.

[0041] In some embodiments, reference Figure 1 The fixed platform 3 further includes a pressing assembly 5. The pressing assembly 5 is disposed on the top of the frame 2 and on a side of the first fixed plate 40 away from the fixed space 43. The pressing assembly 5 includes a side plate 50, an upper pressing plate 51 and a lower pressing plate 52. The side plate 50 extends along the second direction. The upper pressing plate 51 and the lower pressing plate 52 both extend along the first direction and are spaced apart on a side of the side plate 50 facing the upper pressing plate 51 to enclose a pressing area extending along the third direction.

[0042] In some embodiments, reference Figure 1 The pressing assembly 5 further includes a connecting plate 53 and a lifting cylinder 54. The connecting plate 53 extends along the first direction, one end of which is connected to the sliding stop plate 42, and the other end is located at the top of the downward pressing. The lifting cylinder 54 is arranged on the same side as the upper pressing plate 51, and the lifting connecting end at the bottom is connected to the upper pressing plate 51, which is used to drive the upper pressing plate 51 to move along the second direction, and cooperate with the lower pressing plate 52 to press and fix the connecting plate 53.

[0043] Exemplarily, the function of the pressing assembly 5 is to fix the sliding limit plate 42 after adjustment. One end of the connecting plate 53 is connected to the sliding limit plate 42, so that it moves synchronously with it, and the other end is placed between the upper pressing plate 51 and the lower pressing plate 52, that is, in the pressing area. When the position of the sliding limit plate 42 is determined, the lifting cylinder 54 drives the upper pressing plate 51 to press down, and cooperates with the lower pressing plate 52 to press and fix the connecting plate 53, thereby completing the limit of the sliding limit plate 42.

[0044] In some embodiments, reference Figure 1 The fixed platform 3 further includes a cutting through hole 6, which extends along the first direction and is arranged close to one side of the frame 2 along the third direction. The first fixing plate 40 and the second fixing plate 41 are arranged between the sliding limit plate 42 and the cutting through hole 6.

[0045] Exemplarily, the cutting through hole 6 is the path to be cut, and the position of the PCB board that needs to be cut corresponds to it. The sliding limit plate 42 is moved to abut against the other end of the PCB board to determine the position, and then the sliding limit plate 42 is fixed by the pressing assembly 5 to fix the PCB board in the fixed space 43.

[0046] In some embodiments, reference Figure 1 The PCB board cutting mechanism 1 also includes a cutting mechanism. It is arranged in the cutting mechanism frame 2 and is located below the fixed platform 3 along the second direction. The cutting mechanism includes a cutter 70 and a driving device. The cutter 70 can cut along the circumferential direction ( Figure 1 The drive device is used to drive the cutter 70 to rotate and move along the cutting through hole 6 to cut the PCB board.

[0047] In some embodiments, reference Figure 1 The driving device includes a mobile platform. The mobile platform includes a base 710, a first synchronous wheel 711, a second synchronous wheel, a synchronous belt 712 and a first driving motor. The base 710 extends along a first direction. The first synchronous wheel 711 and the second synchronous wheel are rotatably arranged at both ends of the top of the base 710 along the first direction. The synchronous belt 712 is wound between the first synchronous wheel 711 and the second synchronous wheel. The first driving motor is used to drive the first synchronous wheel 711 and the second synchronous wheel to rotate in the circumferential direction.

[0048] Exemplarily, the mobile platform adopts a wheel-belt structure, and the reciprocating motion of the synchronous belt 712 is achieved by the first driving motor.

[0049] In some embodiments, reference Figure 1 The driving device further includes a fixed frame 72, a connecting block 73, a linear guide rail group 74 and a second driving motor. The bottom of the fixed frame 72 is arranged in the synchronous belt 712 and is connected and fixed to the synchronous belt 712 through the connecting block 73. The linear guide rail group 74 is respectively arranged on both sides of the synchronous belt 712 along the third direction, and is used to connect the fixed frame 72 and the base 710, so that the fixed frame 72 moves synchronously with the synchronous belt 712 along the first direction through the first driving motor. The second driving motor is arranged at the top of the fixed frame 72, and is used to connect and drive the cutter 70.

[0050] Exemplarily, the top of the fixed frame 72 carries a second drive motor for driving the cutter 70 to rotate, and the bottom is connected and fixed to the synchronous belt 712 through a connecting pressure block 73, so that the rotating cutter 70 can move and cut in the cutting hole 6 as the synchronous belt 712 moves.

[0051] In some embodiments, reference Figure 1 The cutting mechanism further comprises a dust collecting device 8. The dust collecting device 8 is arranged between the fixed platform 3 and the cutting mechanism, and comprises a conical funnel 80 and a dust collecting box 81. The conical funnel 80 is sleeved on the portion of the cutter 70 away from the cutting through hole 6, and is connected to the dust collecting box 81 through a pipeline.

[0052] Exemplarily, the conical funnel 80 is disposed at the bottom of the cutter 70 and is fixed to the fixing frame 72 by bolts, and is used to collect dust and debris ejected downward when the cutter 70 cuts the PCB board. The dust and debris flow along the pipe and are collected in the dust box 81.

[0053] In some embodiments, reference Figure 1 The fixed platform 3 also includes a pressing plate 92 assembly 9. The pressing plate 92 assembly 9 is arranged on the side of the cutting through hole 6 away from the sliding limit plate 42. The pressing plate 92 assembly 9 includes a first connecting end 90, a second connecting end 91 and a pressing plate 92. The first connecting end 90 and the second connecting end 91 are respectively arranged corresponding to the first fixing plate 40 and the second fixing plate 41. The pressing plate 92 extends along the first direction, one end is hingedly connected to the first connecting end 90, and the other end is detachably connected to the second connecting end 91, so that the pressing plate 92 can rotate along the first connecting end 90, and a foam 920 is provided at the bottom of the pressing plate 92.

[0054] For example, when placing or removing the PCB, the pressing plate 92 is separated from the second connection end 91 and moves away from the fixing space 43. After the PCB is fixed in the fixing space 43, the pressing plate 92 is fixed to the second connection end 91, and the PCB is pressed down by the foam 920 at the bottom of the pressing plate 92 for auxiliary fixing. The bottom of the first connection end 90 and the second connection end 91 are bolted to the fixing platform 3 for fixing, and the pressing plate 92 and the second connection end 91 can be connected by bolts or by snaps.

[0055] In some embodiments, reference Figure 1 A protective cover 60 is provided on one side of the cutting through hole 6 away from the fixed platform 3 along the first direction. The protective cover 60 is bolted to the fixed platform 3 to be fixed, and is used to protect the cutter 70 after the cutter 70 completes cutting.

[0056] The above implementation modes are only for illustrating the technical concept and features of the utility model, and their purpose is to allow people familiar with this technology to understand the content of the utility model and implement it. It cannot be used to limit the protection scope of the utility model. Any equivalent changes or modifications made according to the spirit of the utility model should be included in the protection scope of the utility model.

Claims

1. A PCB board cutting mechanism, characterized in that: include: A frame extending along a first direction; A fixed platform is arranged at the top of the frame along the second direction; the fixed platform comprises a positioning assembly, and the positioning assembly comprises a first fixed plate, a second fixed plate and a sliding limit plate; The sliding limit plate extends along the first direction and is arranged close to one side of the frame along the third direction, and the first direction, the second direction and the third direction are perpendicular to each other; The first fixing plate and the second fixing plate both extend along the third direction, and are arranged along the second direction at two ends of the sliding limiting plate along the first direction to enclose a fixed space; A side of the first fixed plate away from the second fixed plate, and a side of the second fixed plate away from the first fixed plate, are provided with corresponding sliding grooves; both ends of the sliding limit plate along the first direction are provided with sliding parts that match the concave and convex parts of the sliding grooves, so that the sliding limit plate can slide along the first fixed plate and the second fixed plate.

2. The PCB cutting mechanism according to claim 1, characterized in that: The fixed platform also includes a pressing assembly; the pressing assembly is arranged on the top of the frame and on the side of the first fixed plate away from the fixed space; the pressing assembly includes a side plate, an upper pressing plate and a lower pressing plate; the side plate extends along the second direction; the upper pressing plate and the lower pressing plate both extend along the first direction and are spaced apart on the side of the side plate facing the upper pressing plate to enclose a pressing area extending along the third direction.

3. The PCB cutting mechanism according to claim 2, characterized in that: The pressing assembly also includes a connecting plate and a lifting cylinder; the connecting plate extends along the first direction, one end of which is connected to the sliding limit plate, and the other end is located at the top of the downward pressure; the lifting cylinder is arranged on the same side as the upper pressure plate, and the lifting connection end at the bottom is connected to the upper pressure plate, which is used to drive the upper pressure plate to move along the second direction and cooperate with the lower pressure plate to crimp and fix the connecting plate.

4. The PCB cutting mechanism according to claim 1, characterized in that: The fixed platform also includes a cutting through hole, which extends along the first direction and is arranged close to one side of the frame along the third direction; the first fixing plate and the second fixing plate are arranged between the sliding limiting plate and the cutting through hole.

5. The PCB cutting mechanism according to claim 4, characterized in that: It also includes a cutting mechanism; the cutting mechanism is inside the frame and is located below the fixed platform along the second direction; the cutting mechanism includes a cutter and a driving device; the cutter can rotate along the circumferential direction and is arranged in the cutting hole, and the circumference surrounds the third direction; the driving device is used to drive the cutter to rotate and move along the cutting hole to cut the PCB board.

6. The PCB cutting mechanism according to claim 5, characterized in that: The driving device comprises a mobile platform; the mobile platform comprises a base, a first synchronous wheel, a second synchronous wheel, a synchronous belt and a first driving motor; the base extends along the first direction; the first synchronous wheel and the second synchronous wheel are rotatably arranged at two ends of the top of the base along the first direction; The synchronous belt is wound between the first synchronous wheel and the second synchronous wheel; the first driving motor is used to drive the first synchronous wheel and the second synchronous wheel to rotate along the circumferential direction.

7. The PCB cutting mechanism according to claim 6, characterized in that: The driving device also includes a fixed frame, a connecting pressure block, a linear guide group and a second driving motor; the bottom of the fixed frame is arranged in the synchronous belt and is connected and fixed to the synchronous belt through the connecting pressure block; the linear guide group is respectively arranged on both sides of the synchronous belt along the third direction, and is used to connect the fixed frame and the base, so that the fixed frame moves synchronously with the synchronous belt along the first direction through the first driving motor; the second driving motor is arranged at the top of the fixed frame, and is used to connect and drive the cutter.

8. The PCB cutting mechanism according to claim 5, characterized in that: The cutting mechanism also includes a dust collecting device; the dust collecting device is arranged between the fixed platform and the cutting mechanism, and includes a conical funnel and a dust collecting box; the conical funnel is sleeved on the part of the cutter away from the cutting through hole, and is connected to the dust collecting box pipeline.

9. The PCB cutting mechanism according to claim 5, characterized in that: The fixed platform also includes a pressure plate assembly; the pressure plate assembly is arranged on the side of the cutting through hole away from the sliding limit plate; the pressure plate assembly includes a first connecting end, a second connecting end and a pressure plate; the first connecting end and the second connecting end are respectively arranged corresponding to the first fixed plate and the second fixed plate; the pressure plate extends along the first direction, one end is hingedly connected to the first connecting end, and the other end is detachably connected to the second connecting end, so that the pressure plate can rotate along the first connecting end, and foam is provided at the bottom of the pressure plate.

10. The PCB cutting mechanism according to claim 5, characterized in that: A protective cover is provided on one side of the cutting through hole away from the fixed platform along the first direction, so as to protect the cutting knife after the cutting is completed.

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