Positioning device for batch cutting of PCBs
Through the automatic positioning device of splicing screw, contact rod and guide rod, combined with limit and leveling components, the problem of insufficient manual alignment accuracy in the prior art is solved, efficient batch cutting of PCB boards is achieved, and the cutting quality and yield are improved.
Patent Information
- Application Number
- CN202521373156.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-07-02
- Publication Date
- 2025-08-22
- Estimated Expiration
- 2035-07-02
AI Technical Summary
Existing PCB cutting equipment relies on manual alignment to make it difficult to ensure accuracy, multi-layer materials are prone to misalignment, inefficient, difficult to meet the needs of mass production, and improper operation may lead to product damage or interlayer offset.
The combination of spliced screw, contact rod and guide rod is used to achieve automatic positioning and feeding, combining limiting components and leveling components to ensure accurate alignment and dynamic leveling of PCB boards, reducing manual operation.
It realizes automatic positioning and feeding of PCB boards, ensures consistent cutting size, ensures product structural integrity, and improves production efficiency and product yield.
Smart Images
Figure CN223250770U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of PCB processing equipment, in particular to a positioning device for batch cutting of PCB boards. Background Art
[0002] PCBs are key components for electrical connections in electronic devices. To improve production efficiency, a panelization design is often used during manufacturing. This involves combining multiple small PCB units into a single large board, which then needs to be cut and separated after processing. Furthermore, some PCBs are constructed from multiple laminated layers, requiring precise alignment of the layers during cutting. Failure to do so can lead to circuit shorts, signal interference, and reduced structural strength. Therefore, high-precision batch cutting is crucial to PCB quality and yield.
[0003] Currently, common PCB cutting equipment utilizes a semi-automated approach, typically consisting of a laser cutter, a positioning plate, and a manually assisted positioning mechanism. During operation, workers must stack multiple layers of PCB material on the laser cutter's worktable and perform preliminary alignment using the reference edge of the positioning plate. Due to the lack of automated positioning, workers must repeatedly adjust the material's position to ensure alignment before pushing it into the cutting area. After cutting, the sheets must be manually removed and collected. While this method can meet basic cutting requirements, it is inefficient and highly dependent on operator experience.
[0004] However, existing cutting equipment has obvious defects: it relies on manual alignment, which makes it difficult to ensure accuracy, and multi-layer materials are prone to misalignment during the pushing process, affecting the cutting quality; at the same time, manual operation is inefficient and difficult to meet the needs of mass production, and improper operation may cause damage to the PCB board or inter-layer offset, thereby affecting product yield. Utility Model Content
[0005] In order to overcome the disadvantages of individual operating errors, the utility model provides a positioning device for batch cutting of PCB boards, aiming to solve the above disadvantages.
[0006] A positioning device for batch cutting of PCB boards, comprising a machine tool and a motor, a laser cutting machine is installed at the rear end of the machine tool, a fixed frame is connected to the front end of the machine tool, the motor is installed at the top of the laser cutting machine, a splicing screw is provided between the motor and the fixed frame, the splicing screw is sequentially a clockwise screw, a reciprocating screw and a counterclockwise screw from back to front, the clockwise screw is connected to the output shaft of the motor, the counterclockwise screw is rotatably connected to the fixed frame, a mounting seat is slidably connected to the splicing screw, two guide rods are connected to the rear side of the fixed frame, the mounting seat is slidably connected to the guide rods, a contact rod is slidably connected to the top of the mounting seat, the contact rod is transmission-matched with the splicing screw, the contact rod extending out of the mounting seat is sleeved with a first return spring, a second baffle is connected to the left side of the machine tool, a first push plate is connected to the bottom of the mounting seat, the bottom of the first push plate is slidably connected to the machine tool, a limit assembly for limiting the movement of the PCB board is provided on the front side of the laser cutting machine, and a leveling assembly for squeezing the PCB board is provided on the right side of the machine tool.
[0007] In one embodiment, the limiting assembly includes a gear and a first baffle, the outer ring of the rear end of the clockwise screw is provided with several continuous grooves, the gear is sleeved on the clockwise screw, the inner side of the gear is connected to a telescopic rod, the lower end of the telescopic rod is connected to a block, the block is slidably connected to the groove, the block is slidably connected to the gear, sliders are connected to the left and right sides of the laser cutting machine, the first baffle is slidably connected to the front side of the laser cutting machine through the slider, the inner side of the first baffle is connected to a rack, and the rack is meshed with the gear.
[0008] In one embodiment, the leveling assembly includes a wedge block, a fixed plate is fixedly connected to the right side of the rear end of the machine tool, a second push plate is provided on the left side of the fixed plate through a round rod connected by sliding, and a second return spring is provided on the round rod sleeve, one end of the second return spring is connected to the fixed plate, and the other end is connected to the second push plate, an extrusion rod is connected to the front end of the top of the second push plate, the wedge block is connected to the right end of the top of the first push plate, and the wedge block is extruded and fitted with the extrusion rod.
[0009] In one embodiment, a roller is rotatably connected to the extrusion rod.
[0010] In one embodiment, sponge pads are provided on opposite sides of the first push plate and the first baffle, and the sponge pad is connected to the right side of the second baffle.
[0011] In one embodiment, a buffer pad is connected to the bottom of the first baffle.
[0012] Compared with the prior art, the beneficial effects of the present invention are:
[0013] 1. Through the coordination of the screw rod, contact rod and guide rod, the automatic positioning and feeding of the PCB board are realized, which completely replaces the manual alignment operation and ensures the consistency of the cutting size.
[0014] 2. Through the reciprocating motion of the second push plate, wedge block and extrusion rod in the leveling assembly, dynamic leveling of multi-layer PCB boards is achieved, ensuring the structural integrity of the product. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model.
[0016] Figure 2 This is a cross-sectional view of the connection relationship between the screw rod and the contact rod of the utility model.
[0017] Figure 3 This is a cross-sectional view of the connection relationship between the first baffle and the slider of the utility model.
[0018] Figure 4 This is a schematic diagram of the matching structure of the clamping block and the groove of the utility model.
[0019] Figure 5 This is a cross-sectional view of the installation structure of the second push plate and the fixed plate of the utility model.
[0020] Marked in the figure: 1-machine tool, 2-laser cutting machine, 3-fixed frame, 4-clockwise screw, 5-counterclockwise screw, 6-reciprocating screw, 7-motor, 8-mounting seat, 9-contact rod, 10-first return spring, 11-guide rod, 12-first push plate, 13-gear, 14-rack, 15-first baffle, 151-slider, 16-block, 161-groove, 162-telescopic rod, 17-second push plate, 18-fixed plate, 19-second return spring, 20-extrusion rod, 21-wedge block, 22-second baffle, 23-roller, 24-sponge pad, 25-buffer pad. DETAILED DESCRIPTION
[0021] The present invention will be further described below with reference to the embodiments shown in the accompanying drawings.
[0022] Embodiment: A positioning device for batch cutting of PCB boards, such as Figure 1-Figure 5As shown, it includes a machine tool 1, a laser cutting machine 2, a fixed frame 3, a clockwise screw 4, a counterclockwise screw 5, a reciprocating screw 6, a motor 7, a mounting seat 8, a contact rod 9, a first return spring 10, a guide rod 11, a first push plate 12, a second baffle 22, a limit assembly and a leveling assembly. The laser cutting machine 2 is installed at the rear end of the machine tool 1, and the fixed frame 3 is connected to the front end of the machine tool 1. The motor 7 is installed on the top of the laser cutting machine 2. A spliced screw is arranged between the motor 7 and the fixed frame 3. The spliced screws are the clockwise screw 4, the reciprocating screw 6 and the counterclockwise screw 5 from the back to the front, and the thread grooves at the connections of all the screws have smooth transitions. The clockwise screw 4 is connected to the output shaft of the motor 7, and the counterclockwise screw 5 is rotatably connected to the fixed frame. In the fixed frame 3, a mounting seat 8 is slidably connected to the splicing screw rod, and two guide rods 11 are connected to the rear side of the fixed frame 3. The mounting seat 8 is slidably connected to the guide rod 11. The top of the mounting seat 8 is slidably connected to the contact rod 9, and the contact rod 9 is matched with the splicing screw rod for transmission. The contact rod 9 extends out of the mounting seat 8 and is sleeved with a first return spring 10. One end of the first return spring 10 is fixedly connected to the contact rod 9, and the other end is fixedly connected to the mounting seat 8. A second baffle 22 is connected to the left side of the machine tool 1, and a first push plate 12 is connected to the bottom of the mounting seat 8. The bottom of the first push plate 12 is slidably connected to the machine tool 1. A limit assembly for limiting the movement of the PCB board is provided on the front side of the laser cutting machine 2, and a leveling assembly for squeezing the PCB board is provided on the right side of the machine tool 1.
[0023] like Figure 3 and Figure 4 As shown, the limiting assembly includes a gear 13, a rack 14, a first baffle 15, a slider 151, a block 16 and a telescopic rod 162. The outer ring of the rear end of the clockwise screw 4 is provided with several continuous grooves 161. The gear 13 is sleeved on the clockwise screw 4. The telescopic rod 162 is connected to the inner side of the gear 13. The lower end of the telescopic rod 162 is connected to the block 16. The block 16 is slidably connected to the groove 161. A spring is provided in the telescopic rod 162. The block 16 is slidably connected to the gear 13. Sliders 151 are connected to the left and right sides of the laser cutting machine 2. The first baffle 15 is slidably connected to the front side of the laser cutting machine 2 through the slider 151. The rack 14 is connected to the inner side of the first baffle 15, and the rack 14 is meshed with the gear 13.
[0024] like Figure 5As shown, the leveling assembly includes a second push plate 17, a fixed plate 18, a second return spring 19, an extrusion rod 20, a wedge block 21 and a second baffle 22. The fixed plate 18 is fixedly connected to the right side of the rear end of the machine tool 1, and the second push plate 17 is provided on the left side of the fixed plate 18 through a round rod connected by sliding. The bottom of the second push plate 17 is slidably connected to the machine tool 1, and the round rod is sleeved with a second return spring 19. One end of the second return spring 19 is connected to the fixed plate 18, and the other end is connected to the second push plate 17. The front end of the top of the second push plate 17 is connected to the extrusion rod 20, and the wedge block 21 is connected to the right end of the top of the first push plate 12. The wedge block 21 is extruded and fitted with the extrusion rod 20. A protrusion is provided at the bottom of the wedge block 21, and the length of the protrusion is less than the length of the reciprocating screw 6.
[0025] like Figure 5 As shown, a roller 23 is also included, and the extrusion rod 20 is rotatably connected to the roller 23.
[0026] like Figure 1 As shown, a sponge pad 24 is also included. Sponge pads 24 are provided on the opposite sides of the first push plate 12 and the first baffle 15, and a sponge pad 24 is connected to the right side of the second baffle 22. When the push plate and the baffle cooperate to level the PCB board, the sponge pad 24 is used to absorb collision energy and prevent scratches on the surface of the board.
[0027] like Figure 3 As shown, a buffer pad 25 is further included. The bottom of the first baffle 15 is connected to the buffer pad 25, and the thickness of the buffer pad 25 is less than the thickness of a single PCB board.
[0028] The staff places the stacked PCB boards on the machine tool 1 and close to the second baffle 22, and then starts the motor 7. The motor 7 drives the splicing screw to rotate, and the motor 7 drives the splicing screw to rotate as a whole. The counterclockwise screw 5 drives the mounting seat 8 to move backward through the contact rod 9, and the mounting seat 8 slides along the guide rod 11, synchronously driving the first push plate 12 to move back and forth. At the same time, the clockwise screw 4 drives the gear 13 to rotate through the groove 161 and the block 16, and the gear 13 drives the rack 14 engaged with it to move downward, so that the first baffle 15 slides downward along the slider 151, thereby closing the feed port of the laser cutting machine 2. During the backward movement of the first push plate 12, the wedge block 21 approaches the extrusion rod 20.
[0029] The counterclockwise screw 5 drives the mounting base 8 to move backward, while the reverse clockwise screw 4 drives the mounting base 8 to move forward, and the mounting base 8 moves back and forth through the middle reciprocating screw 6. When the contact rod 9 contacts the reciprocating screw 6, the first push plate 12 that moves back and forth squeezes the PCB board back and forth to level it. Since the splicing screw continues to rotate, after the first baffle 15 contacts the machine tool 1, the block 16 slides in the groove 161, and the telescopic rod 162 reciprocates and rebounds, so that the gear 13 does not move, and the block 16 slides in the groove 161, causing the gear 13 and the clockwise screw 4 to rotate relative to each other, maintaining the position of the first baffle 15 and restricting the back side of the PCB board. The buffer pad 25 can prevent the first baffle 15 from being over-extruded. When the block 16 cooperates with different grooves 161, the buffer pad 25 repeatedly squeezes and rebounds.
[0030] The wedge block 21 moves back and forth following the first push plate 12, and the wedge block 21 pushes the second push plate 17 to move leftward through the squeezing rod 20, and the roller 23 can reduce the friction between the wedge block 21 and the squeezing rod 20, thereby pushing the PCB board close to the second baffle 22. When the second push plate 17 moves, the second return spring 19 is stretched, and the bottom protrusion of the wedge block 21 can disengage from the squeezing rod 20 when the first push plate 12 moves back and forth, so that the second return spring 19 rebounds, and the second push plate 17 realizes reciprocating movement through the wedge block 21 and the squeezing rod 20 to ensure that all PCB boards are stacked neatly.
[0031] After the PCB boards are stacked neatly, when the contact rod 9 moves forward and approaches the front end of the reciprocating screw 6, the motor 7 reverses, thereby driving the contact rod 9 to move backward. At this time, the gear 13 is driven to reverse through the groove 161 and the block 16, and the gear 13 rack 14 drives the first baffle 15 to move upward, and the first push plate 12 pushes the PCB board to move backward and push it into the laser cutting machine 2, directly pulling the contact rod 9 upward, compressing the first return spring 10, and pulling the mounting seat 8 forward. After the mounting seat 8 contacts the fixing frame 3, the contact rod 9 is released, the first return spring 10 rebounds, and the contact rod 9 contacts the counterclockwise screw 5. After the PCB board completes laser cutting, the target PCB board is obtained and discharged.
[0032] The embodiments of the present invention are described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Various changes can be made within the scope of knowledge possessed by those skilled in the art without departing from the purpose of the present invention.
Claims
1. A positioning device for batch cutting of PCB boards, comprising a machine tool (1), wherein a laser cutting machine (2) is installed at the rear end of the machine tool (1), characterized in that: The machine tool (1) further comprises a motor (7), the front end of which is connected to a fixing frame (3), the motor (7) being mounted on the top of the laser cutting machine (2), a splicing screw being provided between the motor (7) and the fixing frame (3), the splicing screw being sequentially arranged from the back to the front, namely, a clockwise screw (4), a reciprocating screw (6) and a counterclockwise screw (5), the clockwise screw (4) being connected to the output shaft of the motor (7), the counterclockwise screw (5) being rotatably connected to the fixing frame (3), a mounting seat (8) being slidably connected to the splicing screw, the rear side of the fixing frame (3) being connected to two guide rods (11), the mounting seat ( 8) is slidably connected to the guide rod (11), the top of the mounting seat (8) is slidably connected to a contact rod (9), the contact rod (9) is in transmission cooperation with the splicing screw, the contact rod (9) extending out of the mounting seat (8) is sleeved with a first return spring (10), the left side of the machine tool (1) is connected to a second baffle (22), the bottom of the mounting seat (8) is connected to a first push plate (12), the bottom of the first push plate (12) is slidably connected to the machine tool (1), the front side of the laser cutting machine (2) is provided with a limit assembly for limiting the movement of the PCB board, and the right side of the machine tool (1) is provided with a leveling assembly for squeezing the PCB board.
2. A positioning device for batch cutting of PCB boards according to claim 1, characterized in that: The limiting assembly includes a gear (13) and a first baffle (15), a plurality of continuous grooves (161) are formed on the outer ring of the rear end of the clockwise screw (4), the gear (13) is sleeved on the clockwise screw (4), a telescopic rod (162) is connected to the inner side of the gear (13), a clamping block (16) is connected to the lower end of the telescopic rod (162), the clamping block (16) is slidably connected to the groove (161), the clamping block (16) is slidably connected to the gear (13), the left and right sides of the laser cutting machine (2) are connected to the slider (151), the first baffle (15) is slidably connected to the front side of the laser cutting machine (2) through the slider (151), the inner side of the first baffle (15) is connected to a rack (14), and the rack (14) is meshed with the gear (13).
3. A positioning device for batch cutting of PCB boards according to claim 2, characterized in that: The leveling assembly includes a wedge block (21), a fixed plate (18) is fixedly connected to the right side of the rear end of the machine tool (1), a second push plate (17) is provided on the left side of the fixed plate (18) through a round rod connected by sliding, and a second return spring (19) is provided on the round rod sleeve, one end of the second return spring (19) is connected to the fixed plate (18), and the other end is connected to the second push plate (17), and the front end of the top of the second push plate (17) is connected to an extrusion rod (20), and the wedge block (21) is connected to the right end of the top of the first push plate (12), and the wedge block (21) is extruded and matched with the extrusion rod (20).
4. A positioning device for batch cutting of PCB boards according to claim 3, characterized in that: A roller (23) is rotatably connected to the extrusion rod (20).
5. A positioning device for batch cutting of PCB boards as claimed in claim 4, characterized in that: A sponge pad (24) is provided on one side of the first push plate (12) and the first baffle (15) facing each other, and the right side of the second baffle (22) is connected to the sponge pad (24).
6. A positioning device for batch cutting of PCB boards according to claim 5, characterized in that: A buffer pad (25) is connected to the bottom of the first baffle (15).