CCD (Charge Coupled Device) alignment machine for sheet supply
By using a CCD alignment machine for precise alignment and stabilization, the problem of inaccurate stacking of core boards and PP boards was solved, achieving efficient and stable stacking and improving the quality of circuit board production.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- NANJING CRESS AUTOMATION TECH CO LTD
- Filing Date
- 2026-01-29
- Publication Date
- 2026-04-17
AI Technical Summary
In the circuit board manufacturing process, inaccurate stacking of the core board and PP board leads to scrapping during hot melting. Existing mechanical equipment is prone to damaging the core board and PP board and has low alignment efficiency.
The system employs a CCD alignment machine, including an alignment stage base plate, a pre-alignment stage, a pressure plate arm, and a camera module. It uses a CCD alignment camera for precise alignment, combined with a ball bearing fixing plate and a linear guide rail to maintain stable stacking, thereby improving positional accuracy and stability.
It improves the stacking accuracy and quality of core boards and PP boards, reduces the scrap rate, and improves alignment efficiency and product quality.
Smart Images
Figure CN121888488A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of circuit board manufacturing equipment technology, and more specifically to a CCD alignment machine for thin-film supply. Background Technology
[0002] During the circuit board manufacturing process, the core board and PP board need to be stacked sequentially before hot melting. The stacking position of the core board and PP board needs to be precise. If the stacking position is not precise, the core board and PP board will be scrapped during hot melting.
[0003] Some existing circuit board manufacturing processes use mechanical devices to contact and clamp the core board and PP board for stacking, and use mechanical structures to correct the stacking position of the core board and PP board. This method is not only prone to damaging the core board and PP board, but also has low alignment efficiency. Summary of the Invention
[0004] In view of the above-mentioned technical deficiencies, the purpose of this invention is to provide a CCD alignment machine for sheet supply, which has the advantages of improving the accuracy of stacking alignment and improving product quality.
[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: The present invention provides a CCD alignment machine for thin film supply, comprising: Alignment stage base plate, with core plate arm and PP plate arm respectively installed on the outside of the alignment stage base plate; The pre-alignment stage is set on the top surface of the alignment stage base plate; There are two pressure plate arms, which are horizontally spaced and movable on the pre-alignment platform. There are two camera modules, which are arranged in parallel and spaced apart on the top of the alignment platform base plate. The camera module includes a camera base plate, a lead screw motor, a lead screw nut on the output shaft of the lead screw motor, a CCD alignment camera on the lead screw nut, a slot on the camera base plate corresponding to the position of the CCD alignment camera, and a camera protective cover that is movable on the outside of the camera base plate.
[0006] Preferably, the pre-alignment stage includes: Alignment platform base plate, which is set on the top surface of alignment stage base plate; There are four private motors, which are arranged in a rectangular array on the bottom plate of the alignment platform. Each private motor output shaft is equipped with a guide rail mounting plate. The upper panel is mounted on the guide rail mounting plate. The position of the upper panel can be adjusted by a servo motor, which facilitates the pre-alignment of the core board when the core board arm places the core board on the upper panel.
[0007] Preferably, a support beam is provided on the top surface of the upper panel, and a guide rail base plate is provided at the end of the support beam away from the upper panel. The pressure arm is movably mounted on the guide rail base plate via a linear guide rail, which facilitates the position adjustment of the pressure arm on the guide rail base plate, thereby facilitating the stacking of the core board and PP board.
[0008] Preferably, the end of the pressure plate arm away from the linear guide rail is provided with a ball bearing fixing plate, and the ball bearing fixing plate is provided with a plurality of ball bearing screws, with the balls in the ball bearing screws facing the alignment platform base plate. The balls in the ball bearing screws help to keep the stacked core board and PP board in a stable position.
[0009] Preferably, the bead fixing plate is parallel to the upper panel, and the bead screws are vertically arranged on the bead fixing plate. The beads in the bead screws help to keep the stacked core boards and PP boards in a stable position.
[0010] Preferably, the camera base plate is provided with a guide rail, and the nut is slidably mounted on the guide rail, so that the CCD alignment camera can be driven to complete the image recognition as needed by sliding the nut on the guide rail.
[0011] Preferably, the length direction of the slot is the same as the length direction of the guide rail, which facilitates the sliding of the nut on the guide rail as needed, thereby driving the CCD alignment camera to complete the image recognition through the slot.
[0012] Preferably, the lead screw motor is a linear motor, which helps to improve the accuracy of position adjustment.
[0013] Preferably, the output shafts of the servo motors are all on the same plane, and the length directions of the axis lines of two opposing servo motor output shafts are parallel, while the length directions of the axis lines of two adjacent servo motor output shafts are perpendicular, which facilitates the correction of the position of the upper panel.
[0014] Preferably, the alignment platform base plate is also provided with a plurality of linear slide rails corresponding one-to-one with the guide rail mounting plate. The guide rail mounting plate is slidably mounted on the linear slide rails at the corresponding positions, which facilitates the correction of the position of the upper panel.
[0015] The beneficial effects of this invention are as follows: 1. The CCD alignment camera takes pictures and identifies each core board when it is picked up, and with the cooperation of the pre-alignment stage position correction, the accuracy and quality of the alignment of the core board and the PP board are improved.
[0016] 2. After the core board and PP board are stacked in sequence, the pressure plate arm slides on the guide rail base plate through the linear guide rail to adjust its position. This allows the ball screws on the ball fixing plate to press onto the core board and PP board, which helps to keep the stacked core board and PP board in a stable position and improves the quality of the core board and PP board after they are aligned and stacked. Attached Figure Description
[0017] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0018] Figure 1 This is a schematic diagram of a CCD alignment machine for thin film supply provided in an embodiment of the present invention.
[0019] Figure 2 for Figure 1 Enlarged schematic diagram of the structure at point A in the middle.
[0020] Figure 3 This is a schematic diagram showing the position of a camera protective cover for a CCD alignment machine used for sheet supply, provided in an embodiment of the present invention.
[0021] Figure 4 This is a schematic diagram of a camera module structure for a CCD alignment machine used for thin-film supply, provided as an embodiment of the present invention.
[0022] Figure 5 This is a schematic diagram of a pre-alignment stage structure for a CCD alignment machine used for sheet supply, provided in an embodiment of the present invention.
[0023] Figure 6 This is a schematic diagram of the servo motor position of a CCD alignment machine for thin film supply provided in an embodiment of the present invention.
[0024] Figure 7 for Figure 6 Enlarged schematic diagram of the structure at point B.
[0025] Explanation of reference numerals in the attached drawings: 1. Alignment stage base plate; 2. Pre-alignment stage; 21. Alignment platform base plate; 22. Servo motor; 23. Guide rail mounting plate; 231. Linear slide rail; 24. Upper platform panel; 25. Support beam; 26. Guide rail base plate; 27. Linear guide rail; 28. Ball bearing fixing plate; 29. Ball bearing screw; 3. Pressure plate arm; 4. Camera module; 41. Camera base plate; 411. Guide rail; 42. Lead screw motor; 43. Lead screw nut; 44. CCD alignment camera; 45. Groove; 46. Camera protective cover. Detailed Implementation
[0026] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.
[0027] Example 1 like Figure 1 , Figures 3 to 4 As shown, the present invention provides a CCD alignment machine for thin film supply, including an alignment stage base plate 1, with a core plate arm and a PP plate arm respectively disposed on the outside of the alignment stage base plate 1; a pre-alignment stage 2 disposed on the top surface of the alignment stage base plate 1; two pressure plate arms 3 disposed horizontally and movably on the pre-alignment stage 2; two camera modules 4 disposed parallel and spaced apart above the alignment stage base plate 1; the camera module 4 includes a camera base plate 41, a lead screw motor 42 disposed on the camera base plate 41, a lead screw nut 43 disposed on the output shaft of the lead screw motor 42, a CCD alignment camera 44 disposed on the lead screw nut 43, a slot 45 corresponding to the position of the CCD alignment camera 44 disposed on the camera base plate 41, and a camera protective cover 46 movably disposed on the outside of the camera base plate 41.
[0028] Both the core board hopper and the PP board hopper are located outside the alignment table base plate 1, and the positions of the core board arm and the PP board arm correspond to those of the core board arm and the PP board arm, respectively. This facilitates the core board arm and the PP board arm to grab the core board and the PP board respectively and stack them sequentially (i.e., the core board arm first grabs the core board and places it on the pre-alignment table 2, and then the PP board arm grabs the PP board and stacks it on the core board; the core board arm and the PP board arm repeat the grabbing and stacking action in this way to complete the stacking of the core board and the PP board before hot melting; both the core board arm and the PP board arm use a vacuum suction cup structure to grab and stack the core board and the PP board.
[0029] After the core board is placed on the pre-alignment stage 2, the CCD alignment camera 44 can take pictures for recognition (the CCD alignment camera 44 is existing technology, so it will not be described in detail here). Then, the PP board is picked up and moved to the position of the core board for stacking (that is, each layer of chip needs to be photographed and judged by the CCD alignment camera 44 after being picked up and before being stacked to achieve repeated positioning). That is, after the core board arm picks up the core board and before stacking, the CCD alignment camera 44 takes pictures to judge the relative position between the core board arm (the core board arm that picks up the core board) and the core board placed on the pre-alignment stage 2. If the position is correct, stacking can be carried out; if the position is incorrect, the position is corrected by the pre-alignment stage 2, thereby improving the efficiency of core board and PP board alignment.
[0030] The camera protective cover 46 can protect the lead screw motor 42, the lead screw nut 43, and the CCD alignment camera 44.
[0031] Example 2 Based on Example 1, such as Figures 1 to 2 As shown, the pre-alignment stage 2 includes an alignment platform base plate 21, which is set on the top surface of the alignment platform base plate 1. Four servo motors 22 are arranged in a rectangular array on the alignment platform base plate 21. Each servo motor 22 has a guide rail mounting plate 23 on its output shaft. The upper platform panel 24 is set on the guide rail mounting plate 23. A support beam 25 is set on the top surface of the upper platform panel 24. A guide rail base plate 26 is set at the end of the support beam 25 away from the upper platform panel 24. The pressure plate arm 3 is movably set on the guide rail base plate 26 via a linear guide rail 27. By simultaneously activating the servo motors 22 at opposite ends on the alignment platform base plate 21, the position of the upper platform panel 24 can be adjusted, facilitating alignment when the core plate arm places the core plate on the upper platform panel 24.
[0032] A ball bearing fixing plate 28 is provided at the end of the pressure arm 3 away from the linear guide rail 27. Multiple ball bearing screws 29 are provided on the ball bearing fixing plate 28, with the balls in the ball bearing screws 29 facing the alignment table base plate 1. The ball bearing fixing plate 28 is parallel to the upper table panel 24, and the ball bearing screws 29 are vertically arranged on the ball bearing fixing plate 28. When the core board and PP board are stacked in sequence, the pressure arm 3 slides on the guide rail base plate 26 via the linear guide rail 27 to adjust its position (the linear guide rail 27 is provided with a drive motor that drives the pressure arm 3 to move linearly along the linear guide rail 27). This allows the ball bearing screws 29 on the ball bearing fixing plate 28 to press on the core board and PP board, which helps to keep the stacked core board and PP board in a stable position.
[0033] Example 3 Based on Example 1, such as Figures 3 to 4 As shown, a guide rail 411 is provided on the camera base plate 41, and the lead screw seat 43 is slidably mounted on the guide rail 411; the length direction of the slot 45 is the same as the length direction of the guide rail 411; so that the lead screw motor 42 can be started to drive the lead screw seat 43 to move along the length direction of the guide rail 411 as needed, thereby adjusting the position of the CCD alignment camera 44 mounted on the lead screw seat 43, so that the CCD alignment camera 44 can complete the identification of the position after grasping the core board through the slot 45.
[0034] Example 4 Based on Example 1, such as Figure 4 As shown, the lead screw motor 42 is a linear motor; the lead screw motor 42 can ensure the accuracy of the position when the core board and PP board are stacked.
[0035] Example 5 Based on Example 1, such as Figures 5 to 7 As shown, the output shafts of the servo motors 22 are all on the same plane, and the length directions of the axis lines of two opposing servo motor output shafts are parallel, while the length directions of the axis lines of two adjacent servo motor output shafts are perpendicular; the alignment platform base plate 21 is also provided with multiple linear slide rails 231 that correspond one-to-one with the guide rail mounting plate 23, and the guide rail mounting plate 23 is slidably mounted on the linear slide rails 231 at the corresponding positions.
[0036] As needed, two opposing servo motors 22 on the alignment platform base plate 21 can be started simultaneously to correct the position of the upper platform panel 24. At the same time, when the upper platform panel 24 moves, the guide rail mounting plate 23 can slide on the linear slide rail 231 at the corresponding position, which helps to improve the positional accuracy and stability of the upper platform panel 24 when it moves.
[0037] Obviously, those skilled in the art can make various modifications and variations to this invention without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this invention and their equivalents, this invention also intends to include these modifications and variations.
Claims
1. A CCD alignment machine for sheet supply, characterized in that, include: Alignment stage base plate (1), and core plate arm and PP plate arm are respectively provided on the outside of alignment stage base plate (1); The pre-alignment stage (2) is set on the top surface of the alignment stage base plate (1); There are two pressure plate arms (3), and the two pressure plate arms (3) are horizontally spaced and movable on the pre-alignment stage (2); There are two camera modules (4), which are arranged in parallel and spaced above the positioning platform base plate (1). The camera module (4) includes a camera base plate (41), a lead screw motor (42) is provided on the camera base plate (41), a lead screw nut (43) is provided on the output shaft of the lead screw motor (42), a CCD alignment camera (44) is provided on the lead screw nut (43), a slot (45) corresponding to the position of the CCD alignment camera (44) is also provided on the camera base plate (41), and a camera protective cover (46) is movably provided on the outside of the camera base plate (41).
2. A CCD alignment machine for sheet supply as described in claim 1, characterized in that, The pre-alignment stage (2) includes: Alignment platform base plate (21) is set on the top surface of alignment platform base plate (1); Private motor (22), four private motors (22) are provided, and the four private motors (22) are distributed in a rectangular array on the bottom plate (21) of the alignment platform; Guide rail mounting plate (23), each servo motor (22) has a guide rail mounting plate (23) on its output shaft; The upper panel (24) is mounted on the guide rail mounting plate (23).
3. A CCD alignment machine for sheet supply as described in claim 2, characterized in that, A support beam (25) is provided on the top surface of the upper panel (24). A guide rail base plate (26) is provided at the end of the support beam (25) away from the upper panel (24). The pressure plate arm (3) is movably mounted on the guide rail base plate (26) via a linear guide rail (27).
4. A CCD alignment machine for sheet supply as described in claim 3, characterized in that, The pressure plate arm (3) is provided with a ball bearing fixing plate (28) at the end away from the linear guide rail (27). Multiple ball bearing screws (29) are provided on the ball bearing fixing plate (28), and the balls in the ball bearing screws (29) face the alignment table base plate (1).
5. A CCD alignment machine for sheet supply as described in claim 4, characterized in that, The ball bearing fixing plate (28) is parallel to the upper panel (24), and the ball bearing screw (29) is vertically set on the ball bearing fixing plate (28).
6. A CCD alignment machine for sheet supply as described in claim 1, characterized in that, A guide rail (411) is provided on the camera base plate (41), and the nut seat (43) is slidably mounted on the guide rail (411).
7. A CCD alignment machine for sheet supply as described in claim 6, characterized in that, The length direction of the slot (45) is the same as the length direction of the guide rail (411).
8. A CCD alignment machine for sheet supply as described in claim 1, characterized in that, The lead screw motor (42) is a linear motor.
9. A CCD alignment machine for sheet supply as described in claim 2, characterized in that, The output shafts of the servo motors (22) are all on the same plane, and the length directions of the axis lines of the output shafts of two opposing servo motors (22) are parallel, while the length directions of the axis lines of the output shafts of two adjacent servo motors (22) are perpendicular.
10. A CCD alignment machine for sheet supply as described in claim 9, characterized in that, The alignment platform base plate (21) is also provided with multiple linear slide rails (231) that correspond one-to-one with the guide rail mounting plate (23). The guide rail mounting plate (23) is slidably mounted on the linear slide rail (231) at the corresponding position.