Circuit board trimming device with limiting structure
By designing a circuit board edge cutting device with a limiting structure, the problem of inaccurate removal of excess edge material from PCB circuit boards was solved, achieving precise cutting and efficient processing.
Patent Information
- Application Number
- CN202423239110.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-27
- Publication Date
- 2026-02-17
- Estimated Expiration
- 2034-12-27
AI Technical Summary
In the PCB manufacturing process, existing technologies struggle to accurately locate and remove excess material, often resulting in undercutting or overcutting, leading to PCB scrap.
A circuit board edge cutting device with a limiting structure is designed, including a cutting platform, a positioning fixture, a cutting device, a limiting baffle and a driving mechanism. The adjustable position of the limiting baffle and the movement of the cutter ensure the precise removal of excess edge material from the circuit board.
It enables precise removal of excess material from the edges of circuit boards, reduces positioning error rate, avoids scrapping of circuit boards, and improves processing efficiency.
Smart Images
Figure CN223918034U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to circuit board production technical field especially relates to a circuit board trimming device with limit structure. BACKGROUND
[0002] PCB circuit board (Printed Circuit Board) is also called printed circuit board, and it is an indispensable component part in electronic equipment. It forms the electrical connection between electronic components by patterning the conductive copper foil on the insulating material, and is the support of electronic components and the carrier of electrical interconnection of electronic components.
[0003] In the processing of PCB circuit board, there may be excess edge material on the edge of the board, which needs to be cut off. The conventional method is to first place the PCB circuit board on the cutting platform and fix the position, and then manually or electrically cut off by the cutting knife. In such a cutting method, it is necessary to ensure that the cutting knife can completely cut off the excess edge material after positioning, but the position of the PCB circuit board is adjusted manually during positioning, so it is inevitable to make mistakes. If the positioning is wrong, it may cause less cutting or more cutting, and more cutting may directly cause the scrap of the PCB circuit board. UTILITY MODEL CONTENTS
[0004] The technical problem to be solved by the utility model is to provide a circuit board trimming device with a limiting structure to facilitate the positioning of the circuit board when cutting the excess edge material of the circuit board, ensure accurate positioning, and the cutting knife can completely cut off the excess edge material.
[0005] The technical solution adopted by the utility model to solve the technical problem is: a circuit board trimming device with a limiting structure is provided, which comprises:
[0006] A cutting platform, the right side edge is a cutting edge matched with the cutting of the circuit board;
[0007] A positioning clamp is arranged on the cutting platform and used for clamping and fixing the circuit board placed on the cutting platform;
[0008] A cutting device comprising a cutting knife, the cutting knife can move along the cutting edge and cut the part of the circuit board protruding from the cutting edge clamped and fixed on the cutting platform;
[0009] A limiting baffle is arranged outside the cutting edge;
[0010] A first driving mechanism is used for adjusting the distance between the limiting baffle and the cutting edge;
[0011] A second driving mechanism is arranged to drive the limiting baffle to rotate so as to make the limiting baffle higher than the cutting platform to form a block to the edge of the circuit board or make the limiting baffle lower than the cutting platform to not form a block to the edge of the circuit board.
[0012] Further, the positioning clamp comprises two clamping plates and two first air cylinders; the two clamping plates are respectively arranged on the front and rear sides of the cutting platform; and the two first air cylinders are both fixed to the cutting platform and respectively arranged to drive the two clamping plates to move forward and backward so as to clamp and fix the circuit board arranged on the cutting platform.
[0013] Further, the cutting device further comprises a support, a first screw rod and a first motor.
[0014] The support is fixed relative to the cutting platform.
[0015] The first screw rod is arranged in the support and above the cutting edge, and the first screw rod comprises a first screw rod and a first nut threadedly connected to the first screw rod; the extension direction of the first screw rod is parallel to the extension direction of the cutting edge; and the first nut is fixedly connected to the top of the cutting knife.
[0016] The first motor is fixed to the support and in transmission connection with the first screw rod, and is arranged to drive the first screw rod to rotate so as to drive the cutting knife to move along the cutting edge.
[0017] Further, the second driving mechanism comprises a rotating shaft and a second motor.
[0018] The rotating shaft is rotatably arranged below the cutting platform, and one end of the rotating shaft is fixed to the limiting baffle.
[0019] The second motor is fixed below the cutting platform and arranged to drive the rotating shaft to rotate so as to make the limiting baffle higher or lower than the cutting platform.
[0020] Further, the number of the limiting baffles is three.
[0021] The number of the rotating shafts is also three, and the three limiting baffles are respectively fixed to the ends of the three rotating shafts.
[0022] The second motor drives the three rotating shafts to synchronously rotate through three groups of pulley assemblies.
[0023] Further, the first driving mechanism comprises a moving plate and a third motor.
[0024] The moving plate is arranged below the second driving mechanism, wherein the rotating shaft is rotatably arranged on the moving plate, and the second motor is fixed on the moving plate;
[0025] The third motor is used for driving the moving plate to move left and right, so as to drive the limiting baffle to move and adjust the distance between the limiting baffle and the cutting edge.
[0026] Further, the circuit board edge cutting device further comprises a mounting base plate;
[0027] The first driving mechanism further comprises a second screw rod, a sliding block and a guide rail;
[0028] The second screw rod comprises a second screw rod and a second nut which is threadedly connected to the second screw rod; the second screw rod extends along the left-right direction and is driven to rotate by the third motor; and the second nut is fixedly connected to the bottom of the moving plate.
[0029] The sliding block is two and is fixed to the front and rear sides of the bottom of the moving plate respectively.
[0030] The guide rail is two and is fixed to the front and rear sides above the mounting base plate respectively; the two guide rails both extend along the left-right direction; and the two sliding blocks are slidably arranged on the two guide rails respectively.
[0031] Further, the third motor drives the second screw rod to rotate through the transmission of the gear set.
[0032] Further, the front and rear sides of the cutting platform are fixed to the mounting base plate through a stand plate respectively.
[0033] Further, the circuit board edge cutting device further comprises a pushing device;
[0034] The pushing device comprises a second air cylinder and a push plate; the push plate is located on the left side of the cutting platform; and the second air cylinder is fixed to the cutting platform and is used for driving the push plate to move left and right, so as to push the circuit board on the cutting platform to the edge thereof to abut against the limiting baffle when the circuit board is positioned.
[0035] The beneficial effects of the utility model are as follows:
[0036] The utility model discloses a limiting baffle is set up, and the position of limiting baffle can be adjusted, thus when positioning circuit board, it is much more convenient than manual positioning, and the error rate can also greatly reduce, just need to adjust the spacing between limiting baffle and cutting edge, then make the edge of circuit board to cut and limiting baffle abutting, after positioning fixture fixes circuit board, the cutting knife moves and can accurately cut off the excess edge material of circuit board edge. BRIEF DESCRIPTION OF DRAWINGS
[0037] Figure 1 It is the overall structural drawing of circuit board edge cutting device of the utility model;
[0038] Figure 2 It is Figure 1 the structure schematic drawing of each component below cutting platform in
[0039] Figure 3 It is Figure 2 the explosion map of
[0040] Figure 4 It is Figure 1 the structure schematic drawing of cutting device partial section in
[0041] Figure 5 It is Figure 1 the schematic drawing of clamping and fixing circuit board after on cutting platform of DETAILED DESCRIPTION
[0042] The utility model is further introduced in detail in combination with specific embodiment, but the implementation mode of the utility model is not limited to this.
[0043] Refer to Figure 1 to 5, the utility model provides a kind of circuit board edge cutting device with limiting structure, it includes: cutting platform 100, positioning fixture 200, cutting device 300, limiting baffle 400, first drive mechanism 500 and second drive mechanism 600.
[0044] Refer to Figure 1 And Figure 5 , the right side of cutting platform 100 is the cutting edge 110 for cooperation cutting circuit board.
[0045] Refer to Figure 1 , positioning fixture 200 is set on cutting platform 100, and is used for clamping and fixing circuit board on cutting platform 100.
[0046] Refer to Figure 1 And Figure 5The cutting device 300 comprises a cutter 310. The cutter 310 can move along the cutting edge 110 to cut the part of the circuit board protruding from the cutting edge 110 clamped and fixed on the cutting platform 100.
[0047] The limiting baffle 400 is arranged outside the cutting edge 110.
[0048] The first driving mechanism 500 is used to adjust the distance between the limiting baffle 400 and the cutting edge 110.
[0049] The second driving mechanism 600 is used to drive the limiting baffle 400 to rotate so that the limiting baffle 400 is higher than the cutting platform 100 to form a barrier to the edge of the circuit board or the limiting baffle 400 is lower than the cutting platform 100 to not form a barrier to the edge of the circuit board.
[0050] The use of the above circuit board edge cutting device is roughly as follows:
[0051] S1. Since the limiting baffle 400 is arranged, when cutting the excess edge material of the circuit board a, the distance between the limiting baffle 400 and the cutting edge 110 can be adjusted according to the width of the excess edge material (adjusted by the first driving mechanism 500) to ensure that the width of the cut after the cutter 310 moves is just equal to the width of the excess edge material. (For example, the cutter 310 almost moves along the cutting edge 110, and the distance between the cutter 310 and the cutting edge 110 is negligible. If the width of the excess edge material of the circuit board a is 4 mm, the distance between the limiting baffle 400 and the cutting edge 110 needs to be adjusted to 4 mm before cutting. Then, after the edge of the circuit board a to be cut is positioned against the limiting baffle 400 (see Figure 5 ), the cutter 310 is started, and the width of the cut when the cutter 310 moves is just equal to the width of the excess edge material, i.e. 4 mm.)
[0052] S2. Place the circuit board a on the cutting platform 100, and then push the circuit board a so that the edge of the circuit board a to be cut is positioned against the limiting baffle 400.
[0053] S3. Start the positioning clamp 200 to clamp and fix the circuit board a.
[0054] S4. Start the second driving mechanism 600 to rotate the limiting baffle 400 below the cutting platform 100.
[0055] S5. Start the cutting device 300 to move the cutter 310 along the cutting edge 110 to cut the excess edge material of the circuit board a.
[0056] If the width of the subsequent circuit board a to be cut changes, the distance between the limiting baffle 400 and the cutting edge 110 can be adjusted by the first driving mechanism 500, so that when the circuit board a abuts against the limiting baffle 400, the width of the circuit board a protruding from the cutting edge 110 changes accordingly, thereby achieving the purpose of changing the cutting width.
[0057] The utility model discloses a limiting baffle 400 is arranged, and the position of limiting baffle 400 can be adjusted, so that when positioning the circuit board a, it is much more convenient than manual positioning, and the error rate can be greatly reduced. Only the distance between the limiting baffle 400 and the cutting edge 110 needs to be adjusted, and then the edge of the circuit board a to be cut abuts against the limiting baffle 400. After the circuit board a is fixed by the positioning clamp 200, the cutter 310 can accurately cut off the excess material of the edge of the circuit board a when moving. As long as the distance between the limiting baffle 400 and the cutting edge 110 is correct, the cutting will basically not result in under-cutting or over-cutting.
[0058] In the above step S4, the second driving mechanism 600 is started to rotate the limiting baffle 400 below the cutting platform 100. The purpose is that when cutting the circuit board a, if the limiting baffle 400 still abuts against the edge of the circuit board a, the cut part may still be pressed between the limiting baffle 400 and the circuit board a after cutting, and cannot fall down in time. When the cutter 310 returns, it may block the return of the cutter 310. Therefore, the utility model specially adds the function that the limiting baffle 400 can rotate. Before cutting, the limiting baffle 400 is rotated below the cutting platform 100, and then the limiting baffle 400 will no longer abut against the edge of the circuit board a. Therefore, when the cutter 310 cuts the circuit board a, the cut part will fall down in time, avoiding affecting the return of the cutter 310.
[0059] In addition, in order to avoid interference between the cutter 310 and the limiting baffle 400 when cutting the circuit board a, usually, when the second driving mechanism 600 rotates the limiting baffle 400 below the cutting platform 100, the second driving mechanism 600 will rotate the limiting baffle 400 by 180°, from the original vertical upward state (see the state shown in the drawings) to a vertical downward state, to avoid collision between the cutter 310 and the limiting baffle 400 when the cutter 310 moves. It should be noted that the lowest point of the cutter 310 is higher than the rotating shaft 610 by a certain distance, and the cutter 310 will not interfere with the rotating shaft 610 when moving.
[0060] In a preferred embodiment, referring to Figure 1The positioning fixture 200 comprises two clamping plates 210 and two first air cylinders 220. The two clamping plates 210 are respectively arranged on the front and back sides of the cutting platform 100. The two first air cylinders 220 are both fixed on the cutting platform 100 and are respectively used to drive the two clamping plates 210 to move forward and backward so as to clamp and fix the circuit board a arranged on the cutting platform 100.
[0061] In a preferred embodiment, referring to Figure 4 The cutting device 300 further comprises a support 320, a first lead screw 330 and a first motor 340.
[0062] The support 320 is fixed opposite to the cutting platform 100. The support 320 is in L shape and comprises a vertical arm and a horizontal arm connected to the top of the vertical arm.
[0063] The first lead screw 330 is arranged in the horizontal arm of the support 320 and above the cutting edge 110. The first lead screw 330 comprises a first screw rod 331 and a first nut 332 threadedly connected to the first screw rod 331. The extending direction of the first screw rod 331 is parallel to the extending direction of the cutting edge 110. The first nut 332 is fixedly connected to the top of the cutting knife 310.
[0064] The first motor 340 is fixed to the end of the horizontal arm of the support 320 and is in transmission connection with the first screw rod 331. The first motor 340 is used to drive the first screw rod 331 to rotate so as to drive the cutting knife 310 to move along the cutting edge 110 through the first nut 332. Inside the support 320 is further provided with a linear track (not shown in the figure). The linear track is parallel to the first screw rod 331. One side of the first nut 332 is matched with the linear track so as to ensure that the first nut 332 can only slide along the linear track and cannot rotate with the first screw rod 331.
[0065] Based on the above structure, when the circuit board a needs to be cut, the first motor 340 is started to drive the cutting knife 310 to move along the cutting edge 110, so as to cut the excess material of the edge of the circuit board a. After the cutting is completed, the first motor 340 is reversely operated to return the cutting knife 310 to the initial position.
[0066] In a preferred embodiment, referring to Figure 2 The second driving mechanism 600 comprises a rotating shaft 610 and a second motor 620.
[0067] The rotating shaft 610 is rotatably arranged below the cutting platform 100. The rotating shaft 610 extends along the left-right direction and one end of the rotating shaft 610 is fixed with the limiting baffle 400.
[0068] The second motor 620 is fixed below the cutting platform 100, and is used to drive the rotation of the rotating shaft 610, so as to make the limiting baffle 400 higher or lower than the cutting platform 100.
[0069] Further, referring to Figure 2 , the number of the limiting baffles 400 is three. The number of the rotating shafts 610 is also three, and the three limiting baffles 400 are respectively fixed at the end of the three rotating shafts 610. The second motor 620 drives the synchronous rotation of the three rotating shafts 610 through three sets of belt wheel assemblies 630. That is, as shown in Figure 2 , the second motor 620 drives the rotation of the first rotating shaft 610 through the first set of belt wheel assemblies 630, the first rotating shaft 610 drives the rotation of the second rotating shaft 610 through the second set of belt wheel assemblies 630, and the second rotating shaft 610 drives the rotation of the third rotating shaft 610 through the third set of belt wheel assemblies 630.
[0070] Among them, the belt wheel assembly 630 is a transmission assembly formed by a synchronous belt around two synchronous wheels.
[0071] In a preferred embodiment, referring to 3, the first driving mechanism 500 includes a moving plate 510 and a third motor 520. The moving plate 510 is arranged below the second driving mechanism 600, wherein the rotating shaft 610 is rotatably installed on the moving plate 510, and the second motor 620 is fixed on the moving plate 510. The third motor 520 is used to drive the left and right movement of the moving plate 510, so as to drive the movement of the limiting baffle 400, and adjust the distance between the limiting baffle 400 and the cutting edge 110.
[0072] Among them, referring to Figure 2 , a plurality of ear seats 640 are arranged above the moving plate 510, and the two ends of the rotating shaft 610 are respectively installed on two ear seats 640 through bearings.
[0073] Further, the circuit board edge cutting device further comprises a mounting base plate 700. The first driving mechanism 500 further comprises a second screw rod 530, a sliding block 540 and a guide rail 550. The second screw rod 530 comprises a second screw rod 531 and a second nut 532 threadedly connected to the second screw rod 531; the second screw rod 531 extends in the left-right direction and is driven to rotate by the third motor 520, and the second nut 532 is fixedly connected to the bottom of the moving plate 510. The sliding block 540 is two and is fixed to the front and rear sides of the bottom of the moving plate 510 respectively. The guide rail 550 is two and is fixed to the front and rear sides above the mounting base plate 700 respectively, and both of the guide rails 550 extend in the left-right direction; and both of the sliding blocks 540 are slidingly installed on the guide rails 550 respectively.
[0074] Further, referring to Figure 3 , the third motor 520 drives the second screw rod 531 to rotate through the transmission of the gear set 560.
[0075] Based on the above structure, when the third motor 520 works, it can drive the second screw rod 531 to rotate, and then drive the moving plate 510 and the second driving mechanism 600 installed above the moving plate 510 to move through the second nut 532, so that the position of the limiting baffle 400 changes, achieving the purpose of adjusting the distance between the limiting baffle 400 and the cutting edge 110.
[0076] In a preferred embodiment, referring to 1, the cutting platform 100 is fixed to the mounting base plate 700 through a stand plate 800 on each of the front and rear sides.
[0077] In a preferred embodiment, referring to 1, the circuit board edge cutting device further comprises a pushing device 900. The pushing device 900 comprises a second air cylinder 910 and a push plate 920. The push plate 920 is located on the left side of the cutting platform 100. The second air cylinder 910 is fixed to the cutting platform 100 and is used to drive the push plate 920 to move left and right, so as to push the circuit board a placed on the cutting platform 100 to the edge abutting against the limiting baffle 400 when positioning the circuit board a, referring to Figure 5 . Among them, the number of second air cylinders 910 is two and is fixedly arranged on the cutting platform 100.
[0078] The above-mentioned pushing device 900 can replace manual pushing of the circuit board a, improve work efficiency, and enable the circuit board a placed on the cutting platform 100 to be quickly pushed to the edge abutting against the limiting baffle 400, achieving the purpose of quick positioning.
[0079] The above merely describes preferred embodiments of the present application and is not intended to limit the present application. For those skilled in the art, the present application can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.
Claims
1. A circuit board edge cutting device with a position limiting structure, characterized in that, The utility model relates to a cutting device for circuit board, which comprises the following parts: a cutting platform (100) with a cutting edge (110) on the right side for cutting circuit board; a positioning clamp (200) arranged on the cutting platform (100) for clamping and fixing the circuit board on the cutting platform (100); a cutting device (300) comprising a cutting knife (310), wherein the cutting knife (310) is movable along the cutting edge (110) to cut the part of the circuit board protruding from the cutting edge (110) clamped and fixed on the cutting platform (100); a limiting baffle (400) arranged outside the cutting edge (110); a first driving mechanism (500) for adjusting the distance between the limiting baffle (400) and the cutting edge (110); a second driving mechanism (600) for driving the limiting baffle (400) to rotate so that the limiting baffle (400) is higher than the cutting platform (100) to form a barrier for the edge of the circuit board or the limiting baffle (400) is lower than the cutting platform (100) to form no barrier for the edge of the circuit board.
2. The circuit board edge cutting apparatus with a limiting structure according to claim 1, wherein The positioning clamp (200) comprises two clamping plates (210) and two first air cylinders (220), wherein the two clamping plates (210) are respectively arranged on the front and back sides of the cutting platform (100), and the two first air cylinders (220) are fixed on the cutting platform (100) and respectively used for driving the two clamping plates (210) to move forward and backward to clamp and fix the circuit board on the cutting platform (100).
3. The circuit board edge cutting apparatus with a limiting structure according to claim 1, wherein The cutting device (300) further comprises a support (320), a first lead screw (330) and a first motor (340); the support (320) is fixed opposite to the cutting platform (100); the first lead screw (330) is arranged in the support (320) and above the cutting edge (110), and comprises a first screw rod (331) and a first nut (332) threadedly connected to the first screw rod (331), wherein the extension direction of the first screw rod (331) is parallel to the extension direction of the cutting edge (110), and the first nut (332) is fixedly connected to the top of the cutting knife (310); the first motor (340) is fixed on the support (320) and drivingly connected to the first screw rod (331) to drive the first screw rod (331) to rotate and drive the cutting knife (310) to move along the cutting edge (110).
4. The circuit board edge cutting apparatus with a limiting structure according to claim 1, wherein The second driving mechanism (600) comprises a rotating shaft (610) and a second motor (620); the rotating shaft (610) is rotatably arranged below the cutting platform (100), and one end of the rotating shaft (610) is fixed to the limiting baffle (400). The second motor (620) is fixed below the cutting platform (100) and is used to drive the rotation of the rotating shaft (610) to make the limiting baffle (400) higher or lower than the cutting platform (100).
5. The circuit board edge trimming apparatus with a limiting structure according to claim 4, wherein The number of the limiting baffles (400) is three. The number of the rotating shafts (610) is also three, and the three limiting baffles (400) are respectively fixed at the ends of the three rotating shafts (610). The second motor (620) drives the three rotating shafts (610) to rotate synchronously through three groups of belt wheel assemblies (630).
6. The circuit board edge trimming device with a limiting structure according to claim 5, characterized in that, The first driving mechanism (500) comprises a moving plate (510) and a third motor (520). The moving plate (510) is arranged below the second driving mechanism (600), wherein the rotating shaft (610) is rotatably arranged on the moving plate (510), and the second motor (620) is fixed on the moving plate (510). The third motor (520) is used to drive the left and right movement of the moving plate (510) to drive the movement of the limiting baffle (400) and adjust the distance between the limiting baffle (400) and the cutting edge (110).
7. The circuit board edge trimming device with a limiting structure according to claim 6, characterized in that, The circuit board edge cutting device further comprises a mounting base plate (700). The first driving mechanism (500) further comprises a second lead screw (530), a sliding block (540) and a guide rail (550). The second lead screw (530) comprises a second screw rod (531) and a second nut (532) threadedly connected to the second screw rod (531); the second screw rod (531) extends in the left and right directions and is driven to rotate by the third motor (520); and the second nut (532) is fixedly connected to the bottom of the moving plate (510). The sliding block (540) is two and is respectively fixed to the front and rear sides of the bottom of the moving plate (510). The guide rail (550) is two and is respectively fixed to the front and rear sides above the mounting base plate (700); both of the guide rails (550) extend in the left and right directions; and the two sliding blocks (540) are respectively slidably arranged on the two guide rails (550).
8. The circuit board edge trimming device with a limiting structure according to claim 7, characterized in that, The third motor (520) drives the rotation of the second screw rod (531) through the transmission of the gear set (560).
9. The circuit board edge trimming apparatus with a limiting structure according to claim 7, wherein The front and rear sides of the cutting platform (100) are respectively fixed to the mounting base plate (700) through a stand plate (800).
10. The circuit board edge trimming device with a limiting structure according to any one of claims 1 to 9, characterized in that, The circuit board edge cutting device further comprises a pushing device (900). The pushing device (900) comprises a second air cylinder (910) and a pushing plate (920); the pushing plate (920) is located on the left side of the cutting platform (100); and the second air cylinder (910) is fixed to the cutting platform (100) and is used to drive the left and right movement of the pushing plate (920) to push the circuit board placed on the cutting platform (100) to the edge thereof to abut against the limiting baffle (400) when positioning the circuit board.