An automatic circuit board cutting device and method
Through the design of automatic cutting device combined with limit and measurement components, the problem of low cutting accuracy of circuit boards is solved, efficient and stable cutting of circuit boards is achieved, and the scrap rate is reduced.
Patent Information
- Application Number
- CN202010358245.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2020-04-29
- Publication Date
- 2025-07-25
- Estimated Expiration
- 2040-04-29
Smart Images
Figure CN111496390B_ABST
Abstract
Description
Technical Field
[0001] The present invention belongs to the technical field of cutting, and particularly relates to an automatic circuit board cutting device and method. Background Art
[0002] A circuit board can be called a printed circuit board or a printed wiring board, with the English names (Printed Circuit Board) PCB, (Flexible Printed Circuit board) FPC circuit board (the FPC circuit board is also called a flexible circuit board. The flexible circuit board is a highly reliable and excellent flexible printed circuit board made of polyimide or polyester film. It has the characteristics of high wiring density, light weight, thin thickness, and good bendability.) and rigid-flex board (reechas, Soft and hard combination plate) - The birth and development of FPC and PCB have given rise to this new product, the rigid-flex board. Therefore, a rigid-flex board is a circuit board formed by combining a flexible circuit board and a rigid circuit board through processes such as lamination and combining them together according to relevant process requirements, having the characteristics of both FPC and PCB. Cutting is a common processing step in circuit board processing. Circuit boards have different usage sizes, and circuit boards of a certain size need to be cut. Manual cutting of circuit boards is not accurate enough, and cutting equipment is not stable enough, resulting in low accuracy in circuit board cutting and the inability to guarantee product quality. Summary of the Invention
[0003] The object of the present invention is to provide a technical solution for an automatic circuit board cutting device and method in view of the deficiencies of the prior art. The structure is ingeniously and reasonably designed. An automatic cutting device is used to perform cutting operations on circuit boards, improving the accuracy of cutting circuit boards. The cutting is stable and efficient. Through the dual auxiliary design of a limiting component and a measuring component, accurate measurement and marking of the cutting line in the width direction of the circuit board can be achieved, and at the same time, the actual cutting length is measured and limited to ensure timely stopping after cutting to the specified length, achieving double precision in terms of width dimension and length dimension, thereby effectively improving the actual cutting quality of the circuit board; the cutting method of the present invention is reasonable and easy to operate. The circuit board is placed and positioned on the cutting table through a rear abutting plate and a left abutting plate, then the measuring component is adjusted to measure and mark the cutting line in the width direction of the circuit board, and then the limiting component is adjusted to limit the circuit board in the length direction, and finally the cutting operation is performed, effectively improving the accuracy and reducing the scrap rate.
[0004] To solve the above technical problems, the present invention adopts the following technical solutions:
[0005] An automatic circuit board cutting device, comprising a cutting table and a cutting component, characterized in that: it further includes a limiting component and a measuring component. A rear abutting plate is arranged on the rear top surface of the cutting table, a left abutting plate is arranged on the left top surface of the cutting table, columns are symmetrically arranged on the left and right of the rear side of the cutting table, the cutting component is located between the two columns, and the cutting component is connected to the cutting table through the columns. The limiting component is located at the rear side of the cutting table. The limiting component includes a limiting baffle, a support block and a horizontal support plate. The limiting baffle is adjustably connected to the support block, and the support block is adjustably connected to the horizontal support plate through a limiting joint. Scales are evenly arranged on the front side surface of the horizontal support plate, and the 0 scale line on the horizontal support plate is flush with the right side surface of the left abutting plate. The horizontal support plate is fixedly connected to the cutting table. The measuring component is located on the right side of the cutting table. The measuring component includes a measuring rod, a support plate and an adjusting cylinder. The measuring rod is adjustably connected to the support plate through a measuring joint. Scales are evenly arranged on the left side surface of the support plate, and the 0 scale line on the support plate is flush with the front side surface of the rear abutting plate. The support plate is connected to the adjusting cylinder.
[0006] Furthermore, the cutting component includes a laser cutting head, a lifting cylinder, a rodless cylinder and a front-back adjusting component. The laser cutting head is connected to the lifting cylinder through a limiting block. The laser cutting head is installed on the bottom surface of the limiting block, and the laser cutting head is located on the horizontal center line of the bottom surface of the limiting block. The lifting cylinder is fixed on the slider of the rodless cylinder, and both the left and right ends of the rodless cylinder are connected to the front-back adjusting component. The design is reasonable and the use operation is automated. The telescopic movement of the lifting cylinder can adjust the up and down position of the laser cutting head, so as to realize the cutting of circuit boards with different thicknesses. The rodless cylinder can realize the left and right displacement of the laser cutting head, so as to realize the cutting operation of different cutting lengths of the circuit board. And through the limiting block, it is convenient to install the laser cutting head and it is also convenient for the limiting component to limit the laser cutting head. When the limiting block touches the limiting baffle, the length cutting of the circuit board is in place.
[0007] Furthermore, the front-back adjustment component includes a connecting plate, a mounting frame, an adjustment screw rod, and an adjustment motor. The horizontal end of the connecting plate is fixedly connected to the rodless cylinder. An extension block is provided on the vertical surface of the connecting plate. The extension block is threadedly sleeved on the adjustment screw rod and is clamped in the mounting groove of the mounting frame. The adjustment screw rod is located in the mounting groove. The mounting frame is fixedly connected to the column. The adjustment motor is fixed on the rear end surface of the column. The overall structure is designed compactly and reasonably. The adjustment motor drives the rotation of the adjustment screw rod through the motor shaft, so as to realize the front-back movement of the extension block on the adjustment screw rod. The extension block drives the front-back movement of the rodless cylinder through the connecting plate, so as to adjust the front-back position of the laser cutting head. Moreover, the extension block being restricted in the mounting groove of the mounting frame can ensure the smoothness and horizontality of the front-back movement of the extension block, thus making the overall operation more stable and reliable, improving the operation safety performance. In addition, the mounting frame can hide the adjustment screw rod in the internal mounting groove, so as to protect the adjustment screw rod and extend its service life.
[0008] Furthermore, the measuring joint is clamped on the support plate through the first card slot, and the measuring joint is tightly pressed and fixed to the top surface of the support plate through the first set screw. An extension horizontal plate is provided on the measuring joint, and a positioning stud is provided on the measuring rod. The positioning stud is matched with the perforation on the extension horizontal plate. The positioning stud is clamped in the perforation, and a pressing nut is provided at the top end of the positioning stud. A first positioning side plate is provided on the side surface of the extension horizontal plate. The initial clamping and limiting between the measuring joint and the support plate are realized through the first card slot. Then, the connection firmness between the measuring joint and the support plate is ensured through the limiting of the first set screw. Moreover, by loosening the first set screw, the position of the measuring joint on the support plate can be adjusted to realize the measuring and scribing of different cutting widths of the circuit board. At the same time, the movable sleeving between the measuring joint and the measuring rod is realized through the extension horizontal plate and the positioning stud, and then the connection firmness between the two is ensured through the pressing and limiting of the pressing nut. When the measuring rod is not needed, the measuring rod can be rotated to the front-back direction for storage, avoiding the measuring rod being located above the cutting table and affecting other operations. The design of the first positioning side plate can ensure that the measuring rod remains in a left-right horizontal state after rotating in place, thus ensuring the horizontality of the measuring rod and the measurement accuracy of the cutting width dimension of the circuit board.
[0009] Furthermore, a socket frame is provided at the rear end of the support plate. The socket frame is movably sleeved on the column. The bottom surface of the socket frame is connected to the piston rod of the adjustment cylinder. The adjustment cylinder is fixedly connected to the cutting table. A clamping block is provided on the socket frame, and a limiting chute is provided on the column. The clamping block is matched with the limiting chute, and the clamping block is clamped in the limiting chute. The movable socket connection between the support plate and the column is realized through the socket frame, and then in cooperation with the adjustment cylinder, the adjustment cylinder can drive the up and down movement of the support plate, so that the measuring rod can be adjusted according to the actual thickness of the circuit board, ensuring the accurate measurement and scribing of the measuring rod. And when not in use, the support plate and the measuring rod can be moved above, thus not affecting other operations. At the same time, the further clamping and limiting between the socket frame and the column can be realized through the clamping block and the limiting chute, effectively ensuring the verticality of the support plate during the up and down movement, and the overall structure is more stable and reliable, and more convenient to operate and use.
[0010] Furthermore, the width of the measuring joint is equal to the width of the measuring rod. Designing the horizontal width of the measuring joint and the horizontal width of the measuring rod to be equal can facilitate the direct reading of the width dimension. Since the 0 scale line on the support plate is flush with the front side of the rear abutment plate, and the rear end face of the circuit board is in contact with and abuts against the rear abutment plate, the scale corresponding to the rear side face of the measuring joint on the support plate directly read is the length of the rear end face of the measuring rod from the front side face of the rear abutment plate, that is, the cutting width dimension of the measured circuit board.
[0011] Furthermore, an insertion block is provided on the limiting baffle, and an adjustment groove is provided on the support block. The insertion block is matched with the adjustment groove, and the insertion block is clamped in the adjustment groove. A threaded post is provided on the insertion block, and an adjustment nut is provided on the threaded post. The structural design is ingenious and reasonable. First, the preliminary clamping and limiting between the limiting baffle and the support block are realized through the insertion block and the adjustment groove, and then the further limiting through the threaded post and the adjustment nut can ensure the connection firmness between the limiting baffle and the support block. When the front and rear positions of the limiting baffle need to be adjusted, just loosen the adjustment nut.
[0012] Further, the limit joint is clamped on the horizontal support plate through the second card slot, and the limit joint is tightly fixed to the top surface of the horizontal support plate through the second set screw. A limit stud is provided on the limit joint, and a limit through hole is provided on the support block. The support block is sleeved on the limit stud through the limit through hole, and a limit nut is provided at the top end of the limit stud. A second positioning side plate is provided on the side surface of the limit joint. The clamping limit between the limit joint and the horizontal support plate is realized through the second card slot, and then the limit joint is tightly fixed to the horizontal support plate through the second set screw. The structural design is reasonable, the installation and disassembly are convenient, and it is convenient to adjust the position of the limit joint on the horizontal support plate, so as to adjust the position of the limit joint on the horizontal support plate according to the actual cutting length. When the position of the limit joint needs to be adjusted, just loosen the second set screw. At the same time, the rotational connection between the limit joint and the support block is realized through the limit stud and the limit through hole, and then the connection firmness between the two is ensured by the limit locking of the limit nut. And this rotational connection method can rotate the support block to be horizontally placed left and right when not in use, avoiding the limit baffle above the cutting table from affecting other operations. The design of the second positioning side plate can ensure that the support block remains horizontally in the front and back direction after rotating in place, so as to ensure the horizontality of the limit baffle, facilitate actual adjustment and positioning, and ensure the accuracy of the length measurement and limit of the circuit board.
[0013] Further, the width of the support block is half of the length of the limit block, and the width of the support block is equal to the length of the limit joint. Since the laser cutting head is exactly on the horizontal center line of the bottom surface of the limit block, the width of the support block is designed to be half of the length of the limit block, and the limit baffle just adheres to the side surface of the support block. Thus, when the limit block touches the limit baffle, it means that the laser cutting head just moves to cut the specified cutting length on the circuit board. The dimension design is ingenious and reasonable, which is convenient for the adjustment and reading of the cutting length dimension of the circuit board.
[0014] A cutting method for an automatic circuit board cutting device as described above is characterized by comprising the following steps:
[0015] 1) Placement of the circuit board: Horizontally place the circuit board on the top surface of the cutting table, and horizontally move the circuit board so that the rear side of the circuit board abuts against the rear abutting plate, and the left side of the circuit board abuts against the left abutting plate; The positioning and placement of the circuit board on the cutting table are realized through the rear abutting plate and the left abutting plate, so as to facilitate the subsequent measurement of the cutting width and cutting length dimensions of the circuit board;
[0016] 2) Measurement and scribing of the cutting line:
[0017] (1) First, loosen the compression nut and rotate the measuring rod until the measuring rod touches the first positioning side plate. When the measuring rod rotates in place, tighten the compression nut. Rotate the horizontally placed measuring rod to a vertical position, and use the first positioning side plate as a signal for rotation in place to ensure that the measuring rod is horizontally placed after rotation, thus facilitating the subsequent measurement and scribing of the cutting width dimension of the circuit board.
[0018] (2) Next, loosen the first set screw and move the measuring joint along the surface of the support plate according to the required cutting width dimension of the circuit board until the scale corresponding to the rear side of the measuring joint on the support plate is exactly the designed cutting width. Then, tighten the first set screw. The operation is convenient. By loosening the first set screw, the position of the measuring joint on the support plate is adjusted so that the rear side of the measuring joint moves to the corresponding scale exactly equal to the required cutting width of the circuit board, accurately measuring the cutting line in the width direction during the circuit board cutting process, and effectively improving the accuracy of subsequent circuit board cutting in the width direction.
[0019] (3) Start the adjustment cylinder. The piston rod retracts, driving the socket frame to move downward along the surface of the column. At the same time, the block on the socket frame moves along the limit chute on the column. The socket frame drives the synchronous downward movement of the support plate connected to it until the measuring rod touches and presses the circuit board on the cutting table. The adjustment cylinder drives the measuring rod to move downward and press against the circuit board, which can not only press the circuit board to prevent the circuit board from moving during subsequent scribing of the circuit board and affecting the accuracy of the cutting line, but also the measuring rod adheres to the circuit board, facilitating subsequent scribing operations along the rear side of the measuring rod on the circuit board and reducing the difficulty of scribing operations.
[0020] (4) Use a marker pen to scribe a line on the circuit board along the rear end face of the measuring rod.
[0021] (5) Start the adjustment cylinder. The piston rod extends, driving the measuring rod to move upward. Loosen the first set screw and move the measuring rod along the support plate to the front side of the cutting table, so that the measuring rod moves away from the cutting line. Then, tighten the first set screw. Start the adjustment cylinder again. The piston rod retracts, driving the measuring rod to move downward until the measuring rod touches and presses on the circuit board. After scribing, move the adjustment cylinder upward so that the measuring rod does not contact the circuit board, so that when moving the measuring rod along the support plate, it will not affect the circuit board, and ensure that the position where the measuring rod moves away from the cutting line does not affect the subsequent use of the limit component and the cutting effect of the laser cutting head on the circuit board. Then, move the measuring rod downward and press it against the circuit board to achieve the function of pressing and positioning the circuit board through the measuring rod, facilitating the improvement of subsequent cutting accuracy.
[0022] 3) Measurement and limit of cutting length:
[0023] (1) Loosen the limit nut and rotate the support block until the support block touches the second positioning side plate, then tighten the limit nut; rotate the horizontally placed support block to a front-back placement, and use the second positioning side plate as a signal for the support block to rotate in place, ensuring the horizontal setting of the support block before and after rotation, and improving the accuracy of subsequent cutting length position measurement and limitation.
[0024] (2) Loosen the second set screw and move the limit joint along the horizontal support plate. The limit joint drives the synchronous movement of the limit baffle through the support block until the scale corresponding to the left end face of the limit joint on the horizontal support plate is the required cutting length of the circuit board, then tighten the second set screw; adjust the position of the limit joint on the horizontal support plate according to the actual cutting length of the circuit board to ensure the accuracy of subsequent cutting.
[0025] (3) Loosen the adjusting nut and move the limit baffle along the adjusting groove towards the cutting table until the front end of the limit baffle exceeds the cutting line position, then tighten the adjusting nut; adjust the position of the limit baffle according to the position of the cutting line to ensure that the front end of the limit baffle exceeds the cutting line position, which can ensure the limiting function of the limit baffle and ensure that when the laser cutting head cuts along the cutting line, when the cutting length is reached, the limit block will touch the limit baffle.
[0026] 4) Cutting operation:
[0027] (1) Start the lifting cylinder, the piston rod extends, driving the laser cutting head to move down until the height of the laser cutting head from the top surface of the circuit board reaches the cutting requirement.
[0028] (2) Start the adjusting motor, the adjusting motor drives the rotation of the adjusting screw rod, causing the extension block to move forward along the adjusting screw rod towards the front side of the cutting table. The extension block drives the rodless cylinder to move synchronously through the connecting plate, and the rodless cylinder is connected to the lifting cylinder, thereby driving the laser cutting head connected to the lifting cylinder to move forward synchronously until the laser cutting head is moved directly above the cutting line on the circuit board; by adjusting the front-back position of the laser cutting head to make the position of the laser cutting head correspond to the cutting line, ensure the actual cutting accuracy of the circuit board and reduce the error rate.
[0029] (3) The rodless cylinder starts. When the rodless cylinder is in the initial position, the slider is at the leftmost end. When the slider is at the leftmost end, the laser cutting head exactly corresponds to the left end face of the circuit board. When the rodless cylinder starts, it drives the slider to move from the leftmost end to the right, so that the laser cutting head cuts the circuit board along the cutting line from the left end of the circuit board until the rodless cylinder stops when the limit block touches the limit baffle. Then the adjustment motor starts and drives the laser cutting head to move to the rear of the cutting table until the extension block touches the rear end face of the installation groove. Since when the rodless cylinder moves to the rearmost end position of the adjustment screw, the laser cutting head exactly corresponds to the rear end face of the circuit board, when the extension block touches the rear end face of the installation groove, the cutting is completed. The whole cutting is automated, with high cutting precision, strong practicability and is convenient for popularization and use.
[0030] Due to the adoption of the above technical solution, the present invention has the following beneficial effects:
[0031] In the present invention, the width dimension of the circuit board can be measured through the measuring component. Since the rear side of the circuit board abuts against the rear abutting plate, the 0 scale line on the support plate is flush with the front side of the rear abutting plate. After the measuring rod rotates to a horizontal position left and right, the front and rear sides of the measuring rod exactly correspond to the front and rear sides of the measuring joint. Thus, by directly reading the scale on the support plate at the rear end face of the measuring joint, it is the dimension from the rear end face of the measuring rod to the rear end face of the circuit board, ensuring the accuracy of subsequent readings. According to the cutting width requirement of the circuit board, the position of the measuring joint on the support plate is adjusted until the rear end face of the measuring joint exactly moves to the corresponding reading. Then the position of the corresponding rear end face of the measuring rod on the circuit board is the cutting line position of the width, and precise scribing is carried out to ensure the cutting accuracy of the width dimension of the circuit board. At the same time, after the cutting line is scribed, the measuring rod serves as a pressing component to press and fix the circuit board on the cutting table, effectively preventing the circuit board from moving during the cutting process and affecting the actual cutting operation, and effectively improving the operation safety performance and cutting accuracy.
[0032] In the present invention, the length dimension of the circuit board is measured by a limit component. Since the left side of the circuit board abuts against the left abutting plate, the 0 scale line on the horizontal support plate is flush with the right side surface of the left abutting plate. After the support block rotates to be horizontally placed front and back, the limit baffle on the side is synchronously horizontally arranged front and back. The left and right sides of the support block are exactly flush with the left and right sides of the limit joint. Since the left side surface of the limit baffle is closely attached to the right side surface of the support block, the scale position of the left side surface of the limit baffle on the horizontal support plate differs from the scale of the left side surface of the support plate on the horizontal support plate by the width of the support block. And since the width of the support block is half of the length of the limit block, and the laser cutting head is exactly at the horizontal center of the bottom surface of the limit block, the distance between the center of the laser cutting head and the right side surface of the limit block is exactly equal to the width of the support block. Thus, when cutting along the cutting line, when the limit block abuts against the limit baffle, it means that the laser cutting head just moves to be flush with the left end face of the support block. Thus, by directly reading the scale of the left end face of the limit joint on the horizontal support plate, the required cutting length dimension of the circuit board can be obtained. The reading operation is convenient and simple. The position of the limit joint on the horizontal support plate can be adjusted according to the cutting length requirement of the circuit board until the left end face of the limit joint moves to the corresponding reading, effectively ensuring the cutting accuracy of the length dimension of the circuit board.
[0033] The structural design of the present invention is ingenious and reasonable. An automatic cutting device is used to perform cutting operations on the circuit board, improving the cutting accuracy of the circuit board. The cutting is stable and efficient. Through the dual auxiliary designs of the limit component and the measurement component, accurate measurement and marking of the cutting line in the width direction of the circuit board can be achieved. At the same time, the actual cutting length is measured and limited to ensure timely stop after cutting to the specified length, achieving double precision in terms of width dimension and length dimension, thereby effectively improving the actual cutting quality of the circuit board. The cutting method of the present invention is reasonable and easy to operate. The circuit board is placed and positioned on the cutting table through the rear abutting plate and the left abutting plate. Then, the measurement component is adjusted to measure and mark the cutting line in the width direction of the circuit board. Then, the limit component is adjusted to achieve the limit in the length direction of the circuit board. Finally, the cutting operation is performed, effectively improving the accuracy and reducing the rejection rate. Brief Description of the Drawings
[0034] The present invention will be further described below with reference to the accompanying drawings:
[0035] Figure 1 It is a schematic structural diagram of an automatic cutting device for a circuit board according to the present invention;
[0036] Figure 2 It is a rear view of the present invention;
[0037] Figure 3 It is a schematic installation structure diagram of a measurement joint and a support plate in the present invention;
[0038] Figure 4 Schematic diagram of the installation structure of the measuring rod and the measuring joint in the present invention;
[0039] Figure 5 Schematic diagram of the structure of the limit component in the present invention;
[0040] Figure 6 Schematic diagram of the installation structure of the limit joint and the support block in the present invention;
[0041] Figure 7 Schematic diagram of the structure of the limit baffle in the present invention;
[0042] Figure 8 Schematic diagram of the installation structure of the lifting cylinder and the slider in the present invention;
[0043] Figure 9 Process of measuring and marking the cutting line in the present invention;
[0044] Figure 10 Process of measuring and limiting the cutting length in the present invention;
[0045] Figure 11 Schematic diagram of the state structure of the present invention when the laser cutting head moves into place and is ready to cut.
[0046] In the figure: 1 - cutting table; 2 - cutting component; 3 - limit component; 4 - measuring component; 5 - limit baffle; 6 - support block; 7 - horizontal support plate; 8 - limit joint; 9 - scale; 10 - measuring rod; 11 - support plate; 12 - adjusting cylinder; 13 - measuring joint; 14 - rear abutting plate; 15 - left abutting plate; 16 - column; 17 - laser cutting head; 18 - lifting cylinder; 19 - rodless cylinder; 20 - front and rear adjusting component; 21 - limit block; 22 - slider; 23 - connecting plate; 24 - installation frame; 25 - adjusting screw; 26 - adjusting motor; 27 - extension block; 28 - installation groove; 29 - first card slot; 30 - first set screw; 31 - extension horizontal plate; 32 - positioning stud; 33 - through hole; 34 - compression nut; 35 - first positioning side plate; 36 - socket frame; 37 - clamping block; 38 - limit sliding groove; 39 - insertion block; 40 - adjusting groove; 41 - threaded column; 42 - adjusting nut; 43 - second card slot; 44 - second set screw; 45 - limit stud; 46 - limit through hole; 47 - limit nut; 48 - second positioning side plate; 49 - circuit board; 50 - cutting line. Detailed implementation manners
[0047] As Figures 1 to 8As shown in the figure, an automatic circuit board cutting device of the present invention includes a cutting table 1 and a cutting assembly 2, and also includes a limiting assembly 3 and a measuring assembly 4. A rear abutting plate 14 is arranged on the rear top surface of the cutting table 1, a left abutting plate 15 is arranged on the left top surface of the cutting table 1, columns 16 are symmetrically arranged on the left and right of the rear side of the cutting table 1, the cutting assembly 2 is located between the two columns 16, and the cutting assembly 2 is connected to the cutting table 1 through the columns 16. The limiting assembly 3 is located at the rear side of the cutting table 1. The limiting assembly 3 includes a limiting baffle 5, a support block 6 and a horizontal support plate 7. The limiting baffle 5 is adjustably connected to the support block 6, and the support block 6 is adjustably connected to the horizontal support plate 7 through a limiting joint 8. Scales 9 are uniformly arranged on the front side surface of the horizontal support plate 7, and the 0 scale line on the horizontal support plate 7 is flush with the right side surface of the left abutting plate 15. The horizontal support plate 7 is fixedly connected to the cutting table 1. The measuring assembly 4 is located at the right side of the cutting table 1. The measuring assembly 4 includes a measuring rod 10, a support plate 11 and an adjusting cylinder 12. The measuring rod 10 is adjustably connected to the support plate 11 through a measuring joint 13. Scales 9 are uniformly arranged on the left side surface of the support plate 11, and the 0 scale line on the support plate 11 is flush with the front side surface of the rear abutting plate 14. The support plate 11 is connected to the adjusting cylinder 12.
[0048] The cutting assembly 2 includes a laser cutting head 17, a lifting cylinder 18, a rodless cylinder 19 and a front-back adjusting assembly 20. The laser cutting head 17 is connected to the lifting cylinder 18 through a limiting block 21. The laser cutting head 17 is installed on the bottom surface of the limiting block 21, and the laser cutting head 17 is located on the horizontal center line of the bottom surface of the limiting block 21. The lifting cylinder 18 is fixed on the slider 22 of the rodless cylinder 19. Both the left and right ends of the rodless cylinder 19 are connected to the front-back adjusting assembly 20. The design is reasonable and the operation is automated. The telescopic movement of the lifting cylinder 18 can adjust the up-and-down position of the laser cutting head 17, so as to realize the cutting of circuit boards 49 with different thicknesses. The rodless cylinder 19 can realize the left-and-right displacement of the laser cutting head 17, so as to realize the cutting operation of different cutting lengths of the circuit board 49. And through the limiting block 21, it is convenient to install the laser cutting head 17 and also convenient for the limiting assembly 3 to limit the laser cutting head 17. When the limiting block 21 abuts against the limiting baffle 5, the length cutting of the circuit board 49 is in place.
[0049] The front and rear adjustment assembly 20 includes a connecting plate 23, a mounting frame 24, an adjustment screw 25 and an adjustment motor 26. The horizontal end of the connecting plate 23 is fixedly connected to the rodless cylinder 19. An extension block 27 is arranged on the vertical surface of the connecting plate 23. The extension block 27 is threadedly sleeved on the adjustment screw 25 and is clamped in the mounting groove 28 of the mounting frame 24. The adjustment screw 25 is located in the mounting groove 28. The mounting frame 24 is fixedly connected to the column 16. The adjustment motor 26 is fixed on the rear end surface of the column 16. The overall structure is designed compactly and reasonably. The adjustment motor 26 drives the rotation of the adjustment screw 25 through the motor shaft, so as to realize the forward and backward movement of the extension block 27 on the adjustment screw 25. The extension block 27 drives the forward and backward movement of the rodless cylinder 19 through the connecting plate 23, so as to adjust the front and rear positions of the laser cutting head 17. And the extension block 27 being restricted in the mounting groove 28 of the mounting frame 24 can ensure the smoothness and horizontality of the forward and backward movement of the extension block 27, so that the overall operation is more stable and reliable, improving the operation safety performance. Moreover, the mounting frame 24 can hide the adjustment screw 25 in the internal mounting groove 28, so as to protect the adjustment screw 25 and extend the service life of the adjustment screw 25.
[0050] The measuring joint 13 is clamped on the support plate 11 through the first clamping groove 29, and the measuring joint 13 is tightly pressed and fixed to the top surface of the support plate 11 through the first set screw 30. An extension horizontal plate 31 is arranged on the measuring joint 13. A positioning stud 32 is arranged on the measuring rod 10. The positioning stud 32 is matched with the through hole 33 on the extension horizontal plate 31. The positioning stud 32 is clamped in the through hole 33, and a pressing nut 34 is arranged at the top end of the positioning stud 32. A first positioning side plate 35 is arranged on the side surface of the extension horizontal plate 31. The initial clamping and limiting between the measuring joint 13 and the support plate 11 are realized through the first clamping groove 29, and the connection firmness between the measuring joint 13 and the support plate 11 is ensured through the limiting of the first set screw 30. Moreover, by loosening the first set screw 30, the position of the measuring joint 13 on the support plate 11 can be adjusted to realize the measurement scribing of different cutting widths of the circuit board 49. At the same time, the movable sleeving between the measuring joint 13 and the measuring rod 10 is realized through the extension horizontal plate 31 and the positioning stud 32, and then the limiting is carried out through the pressing of the pressing nut 34 to ensure the connection firmness between the two. When the measuring rod 10 is not needed, the measuring rod 10 can be rotated to the front and rear directions for storage, avoiding the measuring rod 10 affecting other operations above the cutting table 1. The design of the first positioning side plate 35 can ensure that the measuring rod 10 remains in the left and right horizontal state after rotating in place, so as to ensure the horizontality of the measuring rod 10 and the measurement accuracy of the cutting width size of the circuit board 49.
[0051] A socket frame 36 is provided at the rear end of the support plate 11. The socket frame 36 is movably sleeved on the column 16. The bottom surface of the socket frame 36 is connected to the piston rod of the adjustment cylinder 12. The adjustment cylinder 12 is fixedly connected to the cutting table 1. A clamping block 37 is provided on the socket frame 36, and a limiting chute 38 is provided on the column 16. The clamping block 37 is matched with the limiting chute 38, and the clamping block 37 is clamped in the limiting chute 38. Through the socket frame 36, the movable socketing between the support plate 11 and the column 16 is realized, and then in cooperation with the adjustment cylinder 12, the adjustment cylinder 12 can drive the up and down movement of the support plate 11, so that the measuring rod 10 can be adjusted according to the actual thickness of the circuit board 49, ensuring the accurate measuring and scribing of the measuring rod 10. And when not in use, the support plate 11 and the measuring rod 10 can be moved upward, thus not affecting other operations. At the same time, through the clamping block 37 and the limiting chute 38, further clamping and limiting between the socket frame 36 and the column 16 can be realized, effectively ensuring the verticality of the support plate 11 during the up and down movement, making the overall structure more stable and reliable, and more convenient to operate and use.
[0052] The width of the measuring joint 13 is equal to the width of the measuring rod 10. Designing the width of the measuring joint 13 and the width of the measuring rod 10 to be equal can facilitate the direct reading of the width dimension. Since the 0 scale line on the support plate 11 is flush with the front side surface of the rear abutting plate 14, and the rear end surface of the circuit board 49 abuts against the rear abutting plate 14, the scale 9 corresponding to the rear side surface of the measuring joint 13 on the support plate 11 is directly read, which is the length of the rear end surface of the measuring rod 10 from the front side surface of the rear abutting plate 14, that is, the cutting width dimension of the measured circuit board 49.
[0053] An insertion block 39 is provided on the limiting baffle 5, and an adjustment groove 40 is provided on the support block 6. The insertion block 39 is matched with the adjustment groove 40, and the insertion block 39 is clamped in the adjustment groove 40. A threaded column 41 is provided on the insertion block 39, and an adjustment nut 42 is provided on the threaded column 41. The structural design is ingenious and reasonable. First, the preliminary clamping and limiting between the limiting baffle 5 and the support block 6 are realized through the insertion block 39 and the adjustment groove 40, and then the further limiting through the threaded column 41 and the adjustment nut 42 can ensure the connection firmness between the limiting baffle 5 and the support block 6. When the front and rear positions of the limiting baffle 5 need to be adjusted, the adjustment nut 42 can be loosened.
[0054] The limiting joint 8 is clamped on the horizontal support plate 7 through the second card slot 43, and the limiting joint 8 is tightly fixed to the top surface of the horizontal support plate 7 through the second set screw 44. A limiting stud 45 is provided on the limiting joint 8, and a limiting through hole 46 is provided on the support block 6. The support block 6 is sleeved on the limiting stud 45 through the limiting through hole 46, and a limiting nut 47 is provided at the top end of the limiting stud 45. A second positioning side plate 48 is provided on the side surface of the limiting joint 8. The clamping and limiting between the limiting joint 8 and the horizontal support plate 7 are realized through the second card slot 43, and then the limiting joint 8 is tightly fixed on the horizontal support plate 7 through the second set screw 44. The structural design is reasonable, the installation and disassembly are convenient, and it is convenient to adjust the position of the limiting joint 8 on the horizontal support plate 7, so as to adjust the position of the limiting joint 8 on the horizontal support plate 7 according to the actual length to be cut. When the position of the limiting joint 8 needs to be adjusted, loosen the second set screw 44. At the same time, the rotational connection between the limiting joint 8 and the support block 6 is realized through the limiting stud 45 and the limiting through hole 46, and the limiting and locking through the limiting nut 47 ensures the firmness of the connection between the two. And this rotational connection method can rotate the support block 6 to the horizontal position on the left and right when not in use, avoiding the influence of the limiting baffle 5 above the cutting table 1 on other operations. The design of the second positioning side plate 48 can ensure that the support block 6 is in the horizontal state before and after rotation when it rotates in place, so as to ensure the level of the limiting baffle 5, facilitate the actual adjustment and positioning, and ensure the accuracy of the length measurement and limiting of the circuit board 49.
[0055] The width of the support block 6 is half of the length of the limiting block 21, and the width of the support block 6 is equal to the length of the limiting joint 8. Since the laser cutting head 17 is exactly located on the horizontal center line of the bottom surface of the limiting block 21, the horizontal length of the support block 6 is designed to be half of the horizontal length of the limiting block 21, and the limiting baffle 5 just adheres to the side surface of the support block 6. Thus, when the limiting block 21 touches the limiting baffle 5, it means that the laser cutting head 17 just moves to cut to the specified cutting length on the circuit board 49. The size design is ingenious and reasonable, which is convenient for the adjustment and reading of the cutting length dimension of the circuit board 49.
[0056] As Figures 9 to 11 shown, the cutting method of an automatic cutting device for a circuit board 49 according to the present invention includes the following steps:
[0057] 1) Placement of the circuit board 49: Horizontally place the circuit board 49 on the top surface of the cutting table 1, and horizontally move the circuit board 49 so that the rear side of the circuit board 49 abuts against the rear abutting plate 14, and the left side of the circuit board 49 abuts against the left abutting plate 15; the positioning placement of the circuit board 49 on the cutting table 1 is realized through the rear abutting plate 14 and the left abutting plate 15, so as to facilitate the subsequent measurement of the cutting width and cutting length dimensions of the circuit board 49;
[0058] 2) Measurement and marking of the cutting line 50:
[0059] (1) First, loosen the compression nut 34 and rotate the measuring rod 10 until the measuring rod 10 touches the first positioning side plate 35. When the measuring rod 10 rotates in place, tighten the compression nut 34; rotate the horizontally placed measuring rod 10 to a vertically placed position, and use the first positioning side plate 35 as a signal for rotation in place to ensure that the measuring rod 10 is horizontally placed after rotation, so as to facilitate the subsequent measurement and scribing of the cutting width dimension of the circuit board 49 by the measuring rod 10;
[0060] (2) Then, loosen the first set screw 30 and move the measuring joint 13 along the surface of the support plate 11 according to the required cutting width dimension of the circuit board 49 until the scale 9 corresponding to the rear side of the measuring joint 13 on the support plate 11 is exactly the designed cutting width, and then tighten the first set screw 30; the operation is convenient. By loosening the first set screw 30, the position of the measuring joint 13 on the support plate 11 is adjusted so that the rear side of the measuring joint 13 moves to the corresponding scale 9 exactly equal to the required cutting width of the circuit board 49, accurately measuring the cutting line 50 in the width direction during the cutting process of the circuit board 49, and effectively improving the accuracy of the subsequent cutting of the circuit board 49 in the width direction;
[0061] (3) Start the adjusting cylinder 12, and the piston rod retracts to drive the socket frame 36 to move downward along the surface of the column 16. At the same time, the block 37 on the socket frame 36 moves along the limit sliding groove 38 on the column 16, and the socket frame 36 drives the synchronous downward movement of the support plate 11 connected thereto until the measuring rod 10 touches and presses against the circuit board 49 on the cutting table 1; the adjusting cylinder 12 drives the measuring rod 10 to move downward and touch the circuit board 49, which can not only press the circuit board 49 to prevent the circuit board 49 from moving during the subsequent scribing of the circuit board 49 and affecting the accuracy of the cutting line 50, but also the measuring rod 10 adheres to the circuit board 49, which is convenient for subsequent scribing operations along the rear side of the measuring rod 10 on the circuit board 49, reducing the difficulty of scribing operations;
[0062] (4) Use a marker pen to scribe on the circuit board 49 along the rear end face of the measuring rod 10; for the parts that the measuring rod cannot reach, use a horizontal scale to assist in extending the scribing along the already drawn cutting line 50, so as to facilitate the subsequent adjustment and positioning of the laser cutting head 17;
[0063] (5) The adjusting cylinder 12 is activated, and the piston rod extends to drive the measuring rod 10 to move upward. Loosen the first set screw 30, and move the measuring rod 10 along the support plate 11 to the front side of the cutting table 1, so that the measuring rod 10 moves away from the cutting line 50. Then tighten the first set screw 39. The adjusting cylinder 12 is activated again, and the piston rod retracts to drive the measuring rod 10 to move downward until the measuring rod 10 abuts and presses on the circuit board 49. After scribing, move the adjusting cylinder 12 upward so that the measuring rod 10 does not contact the circuit board 49, so that when the measuring rod 10 is moved along the support plate 11, it will not affect the circuit board 49, and ensure that the position where the measuring rod 10 moves away from the cutting line 50 will not affect the subsequent use of the limiting component 3 and the cutting effect of the laser cutting head 17 on the circuit board 49. And move the measuring rod 10 downward again to press it tightly against the circuit board 49, so as to realize the pressing and positioning function of the circuit board 49 through the measuring rod 10, which is convenient for improving the subsequent cutting accuracy;
[0064] 3) Measurement and limitation of cutting length:
[0065] (1) Loosen the limit nut 47, rotate the support block 6 until the support block 6 abuts against the second positioning side plate 48, and then tighten the limit nut 47; rotate the horizontally placed support block 6 to a front-back placement, and use the second positioning side plate 48 as a signal that the support block 6 has rotated in place, ensuring the horizontal setting of the support block 6 before and after rotation, and improving the accuracy of subsequent measurement and limitation of the cutting length position;
[0066] (2) Loosen the second set screw 44, move the limit joint 8 along the horizontal support plate 7. The limit joint 8 drives the synchronous movement of the limit baffle 5 through the support block 6 until the scale 9 corresponding to the left end face of the limit joint 8 on the horizontal support plate 7 is the required cutting length of the circuit board 49, and then tighten the second set screw 44; adjust the position of the limit joint 8 on the horizontal support plate 7 according to the actual cutting length of the circuit board 49 to ensure subsequent cutting accuracy;
[0067] (3) Loosen the adjusting nut 42, move the limit baffle 5 along the adjusting groove 40 towards the cutting table 1 until the front end of the limit baffle 5 exceeds the cutting line 50, and then tighten the adjusting nut 42; adjust the position of the limit baffle 5 according to the position of the cutting line 50 to ensure that the front end of the limit baffle 5 exceeds the cutting line 50, which can ensure the limiting function of the limit baffle 5. Ensure that when the laser cutting head 17 cuts along the cutting line 50, when the cutting length is reached, the limit block 21 will abut against the limit baffle 5;
[0068] 4) Cutting operation:
[0069] (1) The lifting cylinder 18 is activated, and the piston rod extends to drive the laser cutting head 17 to move downward until the height of the laser cutting head 17 from the top surface of the circuit board 49 reaches the cutting requirement;
[0070] (2) The adjustment motor 26 is started, and the adjustment motor 26 drives the rotation of the adjustment screw rod 25, so that the extension block 27 moves forward along the adjustment screw rod 25 towards the front side of the cutting table 1. The extension block 27 drives the rodless cylinder 19 to move synchronously through the connecting plate 23. The rodless cylinder 19 is connected to the lifting cylinder 18, thereby driving the laser cutting head 17 connected to the lifting cylinder 18 to move forward synchronously until the laser cutting head 17 is moved directly above the cutting line on the circuit board 49; by adjusting the front and rear positions of the laser cutting head 17, the position of the laser cutting head 17 corresponds to the cutting line, ensuring the actual cutting accuracy of the circuit board 49 and reducing the error rate;
[0071] (3) The rodless cylinder 19 is started. When the rodless cylinder 19 is in the initial position, the slider 22 is located at the leftmost end. When the slider 22 is located at the leftmost end, the laser cutting head 17 just corresponds to the left end face of the circuit board 49. When the rodless cylinder 19 is started, it drives the slider 22 to move from the leftmost end to the right side, so that the laser cutting head 17 cuts the circuit board 49 along the cutting line 50 from the left end of the circuit board 49 until when the limit block 21 abuts against the limit baffle 5, the rodless cylinder 19 stops. Then the adjustment motor 26 is started, driving the laser cutting head 17 to move towards the rear side of the cutting table 1 until the extension block 27 abuts against the rear end face of the installation groove 28. Since when the rodless cylinder 19 moves to the rearmost end position of the adjustment screw rod 25, the laser cutting head 17 just corresponds to the rear end face of the circuit board 49, when the extension block 27 abuts against the rear end face of the installation groove 28, the cutting is completed; the overall cutting is automated, with high cutting accuracy and strong practicability, which is convenient for popularization and use.
[0072] The above are only specific embodiments of the present invention, but the technical features of the present invention are not limited thereto. Any simple changes, equivalent replacements or modifications made based on the present invention to achieve substantially the same technical effects are all covered by the protection scope of the present invention.
Claims
1. An automatic circuit board cutting device, comprising a cutting table and a cutting assembly, characterized in that: It further includes a limiting component and a measuring component. A rear abutting plate is provided on the rear top surface of the cutting table, and a left abutting plate is provided on the left top surface of the cutting table. Columns are symmetrically arranged on the left and right sides at the rear of the cutting table. The cutting component is located between the two columns, and the cutting component is connected to the cutting table through the columns. The limiting component is located at the rear of the cutting table. The limiting component includes a limiting baffle, a support block and a horizontal support plate. The limiting baffle is adjustably connected to the support block, and the support block is adjustably connected to the horizontal support plate through a limiting joint. Scales are evenly arranged on the front side surface of the horizontal support plate, and the 0 scale line on the horizontal support plate is flush with the right side surface of the left abutting plate. The horizontal support plate is fixedly connected to the cutting table. The measuring component is located on the right side of the cutting table. The measuring component includes a measuring rod, a support plate and an adjusting cylinder. The measuring rod is adjustably connected to the support plate through a measuring joint. Scales are evenly arranged on the left side surface of the support plate, and the 0 scale line on the support plate is flush with the front side surface of the rear abutting plate. The support plate is connected to the adjusting cylinder; the measuring joint is clamped on the support plate through a first card slot, and the measuring joint is tightly fixed to the top surface of the support plate through a first set screw. An extending cross plate is provided on the measuring joint, and a positioning stud is provided on the measuring rod. The positioning stud is matched with a through hole on the extending cross plate. The positioning stud is clamped in the through hole, and a pressing nut is provided at the top end of the positioning stud. A first positioning side plate is provided on the side surface of the extending cross plate; the limiting joint is clamped on the horizontal support plate through a second card slot, and the limiting joint is tightly fixed to the top surface of the horizontal support plate through a second set screw. A limiting stud is provided on the limiting joint, and a limiting through hole is provided on the support block. The support block is sleeved on the limiting stud through the limiting through hole, and a limiting nut is provided at the top end of the limiting stud. A second positioning side plate is provided on the side surface of the limiting joint.
2. The automatic circuit board cutting device according to claim 1, characterized in that: The cutting component includes a laser cutting head, a lifting cylinder, a rodless cylinder and a front and rear adjusting component. The laser cutting head is connected to the lifting cylinder through a limiting block. The laser cutting head is installed on the bottom surface of the limiting block, and the laser cutting head is located on the horizontal center line of the bottom surface of the limiting block. The lifting cylinder is fixed on the slider of the rodless cylinder, and both left and right ends of the rodless cylinder are connected to the front and rear adjusting component.
3. The automatic circuit board cutting device according to claim 2, wherein: The front and rear adjusting component includes a connecting plate, an installation frame, an adjusting screw rod and an adjusting motor. The horizontal end of the connecting plate is fixedly connected to the rodless cylinder. An extending block is provided on the vertical surface of the connecting plate. The extending block is threadedly sleeved on the adjusting screw rod and is clamped in the installation slot of the installation frame. The adjusting screw rod is located in the installation slot. The installation frame is fixedly connected to the column, and the adjusting motor is fixed on the rear end surface of the column.
4. The automatic circuit board cutting device according to claim 1, characterized in that: A socket frame is provided at the rear end of the support plate. The socket frame is movably sleeved on the column. The bottom surface of the socket frame is connected to the piston rod of the adjusting cylinder. The adjusting cylinder is fixedly connected to the cutting table. A clamping block is provided on the socket frame, and a limiting sliding groove is provided on the column. The clamping block is matched with the limiting sliding groove, and the clamping block is clamped in the limiting sliding groove.
5. The automatic circuit board cutting device according to claim 1, characterized in that: The width of the measuring joint is equal to the width of the measuring rod.
6. The automatic circuit board cutting device according to claim 1, characterized in that: An insertion block is provided on the limiting baffle, and an adjusting groove is provided on the support block. The insertion block is matched with the adjusting groove, and the insertion block is clamped in the adjusting groove. A threaded post is provided on the insertion block, and an adjusting nut is provided on the threaded post.
7. The automatic circuit board cutting device according to claim 2, wherein: The width of the support block is half of the length of the limiting block, and the width of the support block is equal to the length of the limiting joint.
8. The cutting method of an automatic circuit board cutting device according to claim 1, characterized in that: It includes the following steps: 1) Placement of the circuit board: Horizontally place the circuit board on the top surface of the cutting table, and horizontally move the circuit board so that the rear side of the circuit board abuts against the rear abutting plate, and the left side of the circuit board abuts against the left abutting plate. 2) Measurement and marking of the cutting line: (1) First, loosen the compression nut and rotate the measuring rod until the measuring rod abuts against the first positioning side plate. When the measuring rod rotates in place, tighten the compression nut. (2) Then loosen the first set screw, and move the measuring joint along the surface of the support plate according to the required cutting width dimension of the circuit board until the scale corresponding to the rear side surface of the measuring joint on the support plate is exactly the designed cutting width, and then tighten the first set screw. (3) The adjusting cylinder is started, and the piston rod retracts to drive the socket frame to move downward along the surface of the column. At the same time, the clamping block on the socket frame moves along the limiting sliding groove on the column. The socket frame drives the synchronous downward movement of the support plate connected thereto until the measuring rod abuts and presses on the circuit board on the cutting table. (4) Use a marker pen to draw a line on the circuit board along the rear end face of the measuring rod. (5) The adjusting cylinder is started, the piston rod extends to drive the measuring rod to move upward, loosen the first set screw, move the measuring rod along the support plate to the front side of the cutting table so that the measuring rod moves to a position away from the cutting line, then tighten the first set screw, and then start the adjusting cylinder again. The piston rod retracts to drive the measuring rod to move downward until the measuring rod abuts and presses on the circuit board. 3) Measurement and limitation of the cutting length: (1) Loosen the limiting nut and rotate the support block until the support block abuts against the second positioning side plate, and then tighten the limiting nut. (2) Loosen the second set screw, and move the limiting joint along the horizontal support plate. The limiting joint drives the synchronous movement of the limiting baffle through the support block until the scale corresponding to the left end face of the limiting joint on the horizontal support plate is the required cutting length of the circuit board, and then tighten the second set screw. (3) Loosen the adjusting nut, and move the limiting baffle along the adjusting groove towards the cutting table until the front end of the limiting baffle exceeds the position of the cutting line, and then tighten the adjusting nut. 4) Cutting operation: (1) The lifting cylinder is started, and the piston rod extends to drive the laser cutting head to move downward until the height of the laser cutting head from the top surface of the circuit board reaches the cutting requirement. (2) Start the adjustment motor. The adjustment motor drives the rotation of the adjustment screw rod, causing the extension block to move forward along the adjustment screw rod towards the front side of the cutting table. The extension block drives the rodless cylinder to move synchronously through the connecting plate, and the rodless cylinder is connected to the lifting cylinder, thereby driving the laser cutting head connected to the lifting cylinder to move forward synchronously until the laser cutting head is moved directly above the cutting line on the circuit board. (3) Start the rodless cylinder. When the rodless cylinder is in the initial position, the slider is at the leftmost end. When the slider is at the leftmost end, the laser cutting head exactly corresponds to the left end face of the circuit board. When the rodless cylinder starts, it drives the slider to move from the leftmost end to the right side, causing the laser cutting head to cut the circuit board along the cutting line from the left end of the circuit board until the limit block touches the limit baffle, at which point the rodless cylinder stops. Then, the adjustment motor starts, driving the laser cutting head to move towards the rear side of the cutting table until the extension block touches the rear end face of the installation groove. Since when the rodless cylinder moves to the rearmost end position of the adjustment screw rod, the laser cutting head exactly corresponds to the rear end face of the circuit board, when the extension block touches the rear end face of the installation groove, the cutting is completed.
Citation Information
Patent Citations
Cutting machine for hardware fitting production
CN109623022A
Positioning tool for assembling circuit board
CN209125801U
Circuit board automatic cutting device
CN212496010U