Material plate positioning device and laser drilling machine

Abstract

The utility model belongs to the technical field of PCB positioning, and particularly relates to a flitch positioning device and a laser drilling machine. The material plate positioning device comprises a carrier plate, a driving part, a plurality of rolling assemblies and a plurality of synchronous assemblies, the driving part is installed on the carrier plate, the rolling assemblies are arranged side by side, the rolling assemblies are rotationally connected to the carrier plate, and the output end of the driving part is connected with any rolling assembly; any two adjacent rolling assemblies are connected through one synchronous assembly, and the driving piece can drive the rolling assembly connected with the driving piece to rotate and drive all the other rolling assemblies to rotate through the synchronous assembly, so that a material plate placed on the rolling assemblies is moved to a target position according to a preset direction. According to the utility model, all the rolling assemblies are connected in series through the plurality of synchronous assemblies, so that some rolling assemblies rotate synchronously, the PCB moves along with the rotation of the rolling assemblies, the PCB moves all the time without being limited, and the positioning efficiency can be improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of PCB board positioning, in particular to a material board positioning device and a laser drilling machine. Background Art

[0002] Before laser processing, the semi-finished PCB boards stacked in the silo are grabbed by the robot and placed on the host platform. Regardless of the size of the PCB board, the center point is used as the positioning origin, and multiple PCB boards are stacked in the silo and the centers are aligned.

[0003] However, laser drilling machines are currently unable to achieve center positioning of PCB boards on the host platform. Before the semi-finished PCB board is placed on the host platform, it must be positioned on a positioning device to align the PCB to the lower left corner to facilitate the CCD to find the target hole within the predetermined coordinate range for precise positioning.

[0004] The positioning process of the existing positioning device is as follows: the manipulator places the PCB board on the moving board surface, and drives the moving board surface to move to the lower left corner through the oblique cylinder. After the positioning cylinder completes the positioning, the manipulator takes away the PCB board. Due to the limited movement stroke of the oblique cylinder, for a small-sized PCB board placed in the center, multiple positioning processes are required to meet the positioning requirements. After each positioning is completed, the manipulator grabs the PCB board, and after the oblique cylinder and the positioning cylinder are reset, the PCB board is put down again. At this time, the PCB board has left the center position, and then the positioning process is repeated multiple times to gradually align the PCB board to the lower left corner. The positioning process is cumbersome and the positioning efficiency is low. Utility Model Content

[0005] The technical problem to be solved by the utility model is: in view of the problem that the existing positioning device needs to repeat the positioning process for a small-sized PCB board placed in the center, and the positioning efficiency is low, a material plate positioning device and a laser drilling machine are provided.

[0006] In order to solve the above technical problems, on the one hand, the embodiment of the utility model provides a material plate positioning device, including a carrier plate, a driving member, a plurality of rolling assemblies and a plurality of synchronization assemblies, wherein the driving member is mounted on the carrier plate, a plurality of the rolling assemblies are arranged in parallel along a preset direction, the rolling assemblies are rotatably connected to the carrier plate, and the output end of the driving member is connected to any of the rolling assemblies;

[0007] Any two adjacent rolling assemblies are connected via a synchronization assembly, and the driving member can drive the rolling assemblies connected thereto to rotate, and drive all other rolling assemblies to rotate via the synchronization assembly, so as to move the material plate placed on the rolling assembly to the target position according to the preset direction.

[0008] Optionally, the carrier plate includes a bottom plate and a plurality of side plates arranged around the outer edge of the bottom plate, and the central axis of the rolling assembly forms an acute angle with the projection of the central axis in a direction perpendicular to any of the side plates on a plane parallel to the carrier plate.

[0009] Optionally, the rolling assembly includes a roller and a plurality of rollers, the plurality of rollers are arranged at intervals along an extension direction of the roller, and all the rollers are arranged in parallel.

[0010] Optionally, the synchronization component includes a connecting wheel and a first synchronization belt, and one connecting wheel is respectively arranged on any two adjacent rollers, and the first synchronization belt is wound between the connecting wheels on the two adjacent rollers.

[0011] Optionally, the plurality of rollers include a first roller and a plurality of second rollers, one end of the first roller is connected to the output end of the driving member, the other end of the first roller is rotatably connected to the carrier, and both ends of the second roller are rotatably connected to the carrier; the first roller and the plurality of second rollers are arranged side by side in the preset direction.

[0012] Optionally, the plurality of side panels include a first side panel, a second side panel, a third side panel and a fourth side panel, the first side panel and the third side panel are arranged opposite to each other, the second side panel and the fourth side panel are arranged opposite to each other, the first side panel is provided with an avoidance hole, one end of the first roller passes through the avoidance hole and is connected to the output end of the driving member, and the other end of the first roller is connected to the third side panel or the second side panel;

[0013] The second roller is connected between the first side plate and the second side plate, and / or the second roller is connected between the first side plate and the third side plate, and / or the second roller is connected between the third side plate and the fourth side plate.

[0014] Optionally, the carrier plate further includes a plate edge support member, and the plate edge support member is disposed on the first side plate and the second side plate.

[0015] Optionally, the material sheet positioning device also includes a first board edge sensor, which is arranged on a side of the first side plate close to the second side plate, and the first board edge sensor is used to detect whether the material sheet moves to the target position; and / or, also includes a second board edge sensor, which is arranged on a side of the second side plate close to the first side plate, and the second board edge sensor is used to detect whether the material sheet moves to the target position.

[0016] Optionally, the sheet positioning device further comprises a first support wheel assembly and a second support wheel assembly, wherein the first support wheel assembly and the second support wheel assembly are rotatably connected to the carrier plate, and the plurality of rolling assemblies are located between the first support wheel assembly and the second support wheel assembly.

[0017] Optionally, the first supporting wheel assembly includes a first connecting shaft and a first supporting wheel disposed on the first connecting shaft, and the first connecting shaft is rotatably connected to the carrier; the second supporting wheel assembly includes a second connecting shaft and a second supporting wheel disposed on the second connecting shaft, and the second connecting shaft is rotatably connected to the carrier;

[0018] The first connecting shaft, the second connecting shaft and the rolling shaft are arranged in parallel.

[0019] Optionally, the sheet positioning device further comprises a first positioning component and a second positioning component;

[0020] The first positioning assembly includes a first positioning cylinder, a first positioning plate and a first positioning stop column, wherein the first positioning cylinder is mounted on the carrier plate, the output end of the first positioning cylinder is connected to the first positioning plate, and the first positioning stop column is mounted on the first positioning plate; the second positioning assembly includes a second positioning cylinder, a second positioning plate and a second positioning stop column, wherein the second positioning cylinder is mounted on the carrier plate, the output end of the second positioning cylinder is connected to the second positioning plate, and the second positioning stop column is mounted on the second positioning plate;

[0021] The first positioning cylinder can drive the first positioning plate to move toward the material plate and drive the first positioning stop column to abut the first side edge of the material plate. The second positioning cylinder can drive the second positioning plate to move toward the material plate and drive the second positioning stop column to abut the second side edge of the material plate adjacent to the first side edge, so that the material plate is deflected by a preset angle.

[0022] Optionally, the first positioning assembly also includes a first whole plate sensor disposed on the first positioning plate, and the first whole plate sensor is used to detect the position of the first side edge of the material plate; the second positioning assembly also includes a second whole plate sensor disposed on the second positioning plate, and the first whole plate sensor and the second whole plate sensor are used to detect the position of the second side edge of the material plate.

[0023] Optionally, the first positioning assembly includes a first upper positioning assembly and a first lower positioning assembly, the first upper positioning assembly is provided with the first whole-board sensor and a plurality of the first positioning stop posts, and the first lower positioning assembly is provided with one of the positioning stop posts;

[0024] The second positioning assembly includes a second upper positioning assembly and a second lower positioning assembly. The second upper positioning assembly is provided with the second whole-board sensor and a plurality of the second positioning stop posts. The second lower positioning assembly is provided with one second positioning stop post.

[0025] On the other hand, an embodiment of the utility model provides a laser drilling machine, including the plate positioning device as described above.

[0026] The material plate positioning device of the embodiment of the utility model can connect all the rolling components in series through multiple synchronous components when positioning the PCB board, and the driving member drives the rolling components connected thereto to rotate, and the rolling components drive two adjacent rolling components to rotate through the synchronous components, and transmit power in sequence, so that all the rolling components rotate, and after the PCB board is placed on the rolling components, the PCB board can move with the rotation of the rolling components, so that the PCB board moves in a preset direction until it reaches the target position. In this process, the PCB board moves along the preset direction without restriction, and there is no need to repeat the positioning process multiple times, and there is no need for the robot to cooperate with the grabbing and putting down, which can improve the positioning efficiency and is suitable for efficient positioning of PCB boards of different board widths. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a three-dimensional schematic diagram of a material plate positioning device provided in one embodiment of the utility model;

[0028] Figure 2 It is a top exploded view of a material plate positioning device provided by an embodiment of the utility model;

[0029] Figure 3 It is a schematic diagram of a first positioning assembly and a second positioning assembly provided in one embodiment of the utility model;

[0030] Figure 4 It is a schematic diagram of a first compensation component and a second compensation component provided by an embodiment of the utility model.

[0031] The reference numerals in the specification are as follows:

[0032] 1. Carrier board; 11. Bottom board; 12. First side board; 121. Avoidance hole; 13. Second side board; 14. Third side board; 15. Fourth side board; 16. Board edge support; 17. First board edge sensor; 18. Second board edge sensor;

[0033] 2. driving member; 21. motor; 22. synchronous belt assembly; 221. driving wheel; 222. driven wheel; 223. second synchronous belt;

[0034] 3. Rolling assembly; 31. Roller; 311. First roller; 312. Second roller; 32. Roller;

[0035] 4. Synchronous assembly; 41. First connecting wheel; 42. Second connecting wheel; 43. First synchronous belt;

[0036] 51, first support wheel assembly; 511, first connecting shaft; 512, first support wheel; 52, second support wheel assembly; 521, second connecting shaft; 522, second support wheel;

[0037] 6. First positioning assembly; 6a. First upper positioning assembly; 6b. First lower positioning assembly; 61. First positioning cylinder; 62. First positioning plate; 63. First positioning stop column; 64. First guide rod; 65. First whole plate sensor;

[0038] 7. Second positioning assembly; 7a. Second upper positioning assembly; 7b. Second lower positioning assembly; 71. Second positioning cylinder; 72. Second positioning plate; 73. Second positioning stop column; 74. Second guide rod; 75. Second whole plate sensor;

[0039] 8. First compensation assembly; 81. First limit cylinder; 82. First connecting plate; 83. First limit screw; 84. Second limit screw;

[0040] 9. Second compensation assembly; 91. Second limiting cylinder; 92. Second connecting plate; 93. Third limiting screw; 94. Fourth limiting screw. DETAILED DESCRIPTION

[0041] In order to make the technical problems, technical solutions and beneficial effects solved by the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0042] like Figures 1 to 4As shown, a material plate positioning device provided by an embodiment of the utility model comprises a carrier plate 1, a driving member 2, a plurality of rolling assemblies 3 and a plurality of synchronous assemblies 4, wherein the driving member 2 is mounted on the carrier plate 1, and the plurality of rolling assemblies 3 are arranged in parallel along a preset direction, and the rolling assemblies 3 are rotatably connected to the carrier plate 1, and the material plate is placed on the rolling assemblies 3. The output end of the driving member 2 is connected to any rolling assembly 3, and any two adjacent rolling assemblies 3 are connected through a synchronous assembly 4 to realize the linkage of the plurality of rolling assemblies 3, and the rolling assemblies 3 connected thereto can be driven to rotate under the drive of the driving member 2, and all other rolling assemblies 3 can be driven to rotate through the synchronous assembly 4, so that the material plate placed on the rolling assembly 3 can be moved to the target position according to the preset direction, and the material plate is positioned at the target position on the carrier plate 1, so that the CCD of the drilling machine can be precisely positioned at the target position.

[0043] The material plate positioning device of the embodiment of the utility model can connect all the rolling components 3 in series through multiple synchronous components 4 when positioning the PCB board, and the driving member 2 drives the rolling components 3 connected thereto to rotate, and the rolling components 3 drive two adjacent rolling components 3 to rotate through the synchronous components 4, and transmit power in sequence, so that all the rolling components 3 rotate, and after the PCB board is placed on the rolling components 3, the PCB board can move with the rotation of the rolling components 3, so that the PCB board moves in a preset direction until it moves to the target position. In this process, the PCB board moves along the preset direction without restriction, and there is no need to repeat the process of material plate movement and material plate grabbing for many times, and there is no need for a manipulator to cooperate with grabbing and putting down, which can improve the positioning efficiency and is suitable for efficient positioning of PCB boards of different board widths.

[0044] Among them, the extension direction of the rolling component 3 is determined according to a preset direction. In this embodiment, the preset direction is from the center position of the carrier 1 to the lower left corner. The rectangular coordinate system is positioned with the lower left corner of the carrier 1 as the origin to determine the X-axis and the Y-axis. For example, the rolling component 3 is set along a 45-degree direction, that is, the center axis of the rolling component 3 intersects with the X-axis and the Y-axis, and the angle is 45 degrees. Through the rotation of multiple rolling components 3, the PCB board can be transported to the lower left corner of the carrier 1.

[0045] In one embodiment, if Figure 1 As shown, the driving member 2 includes a motor 21 and a synchronous belt assembly 22. The synchronous belt assembly 22 includes a driving wheel 221, a passive wheel 222 and a second synchronous belt 223. The second synchronous belt 223 is wound around the driving wheel 221 and the passive wheel 222. The driving wheel 221 is connected to the output end of the motor 21, and the passive wheel 222 is arranged on a rolling assembly 3. Under the transmission of the synchronous belt assembly 22, the motor 21 can drive the rolling assembly 3 to rotate.

[0046] Among them, since all rolling assemblies 3 are linked through the synchronization assembly 4, when the output end of the driving member 2 is connected to any rolling assembly 3, the rotation of all rolling assemblies 3 can be realized. Preferably, among the multiple rolling assemblies 3 arranged in parallel, the output end of the driving member 2 is connected to the rolling assembly 3 at the middle position, which can reduce the hysteresis of the rolling assembly 3 far away from the driving member 2. The motor 21 drives the rolling assembly 3 at the middle position to rotate, and the rolling assembly 3 drives the two adjacent rolling assemblies 3 to rotate through the synchronization assembly 4, and then transmits to both sides step by step.

[0047] In one embodiment, if Figure 1 , Figure 2 As shown, the carrier 1 includes a bottom plate 11 and a plurality of side plates arranged around the outer edge of the bottom plate 11, the motor 21 is installed on the bottom plate 11, and the central axis of the rolling assembly 3 forms an acute angle with the projection of the central axis in a direction perpendicular to any of the side plates on a plane parallel to the carrier 1. When the rolling assembly 3 rotates and transports, the PCB board can be moved obliquely, and the PCB board is moved from the center position of the carrier 1 to the lower left corner position, and positioned at the lower left corner.

[0048] In one embodiment, if Figure 1 , Figure 2 As shown, the rolling assembly 3 includes a roller 31 and a plurality of rollers 32, the roller 32 is fixedly connected to the roller 31, the motor 21 is connected to a roller 31 through a synchronous belt assembly 22, and the roller 31 and the roller 32 rotate synchronously. The plurality of rollers 32 are arranged at intervals along the extension direction of the roller 31, and all the rollers 31 are arranged in parallel. The PCB board abuts against the roller 32, and the motor 21 can drive all the rollers 31 to rotate, and the roller 32 rolls with the roller 31, thereby driving the PCB board to move obliquely in the square structure.

[0049] Among them, in any two adjacent rolling components 3, the multiple rollers 32 on one roller 31 can be aligned or staggered with the multiple rollers 32 on the other roller 31, and the PCB boards can move along the preset direction.

[0050] In one embodiment, if Figure 2 As shown, the synchronous assembly 4 includes a connecting wheel and a first synchronous belt 43, and a connecting wheel is respectively provided on any two adjacent rollers 31, and the first synchronous belt 43 is wound between the connecting wheels on the two adjacent rollers 31. When the driving member 2 drives one of any two adjacent rollers 31 to rotate, the transmission of the first synchronous belt 43 causes the other roller 31 to rotate in the same direction, thereby driving the material plate to be transmitted.

[0051] There are two connecting wheels, namely a first connecting wheel 41 and a second connecting wheel 42. The first connecting wheel 41 is arranged on one of any two adjacent rollers 31, and the second connecting wheel 42 is arranged on the other of any two adjacent rollers 31. The first synchronous belt 43 is wound around the first connecting wheel 41 and the second connecting wheel 42. The first synchronous belt 43 can drive the first connecting wheel 41 and the second connecting wheel 42 to rotate, thereby causing the two adjacent rollers 31 to rotate in a preset direction.

[0052] The plurality of rollers 31 arranged in parallel are arranged in descending order of distance from the lower left corner as 1, 2, ... n. In order to realize the rotation of all rollers 31, except for the outermost first roller 31 and the nth roller 31, each of the remaining rollers 31 is provided with a first connecting wheel 41 and a second connecting wheel 42, and one of the first roller 31 and the nth roller 31 is provided with a first connecting wheel 41, and the other is provided with a second connecting wheel 42. For example, the first connecting wheel 41 on the second roller 31 is connected to the second connecting wheel 42 on the first roller 31 through the first synchronous belt 43, and the second connecting wheel 42 on the second roller 31 is connected to the first connecting wheel 41 on the third roller 31 through the first synchronous belt 43, and so on, and all roller 31 components are connected.

[0053] In one embodiment, if Figure 1 , Figure 2 As shown, the plurality of rollers 31 include a first roller 311 and a plurality of second rollers 312, one end of the first roller 311 is connected to the output end of the driving member 2, the other end of the first roller 311 is rotatably connected to the carrier 1, both ends of the second roller 312 are rotatably connected to the carrier 1, and the first roller 311 and the second roller 312 are arranged side by side in a preset direction. Since all the rolling components 3 are linked by the synchronization component 4, the setting position of the first roller 311 is not limited, and no matter how the position of the first roller 311 is set, all the rolling components 3 can be driven by the driving member and rotated through the first roller 311.

[0054] Preferably, in the preset direction, the first roller 311 is located in the middle of the plurality of second rollers 312, that is, the first roller 311 has a second roller 312 on both sides, and the number of the second rollers 312 on both sides of the first roller 311 is close or the same. Among the n rollers 31 arranged in parallel, the first roller 31 and the nth roller 31 are both second rollers 312, and the first roller 311 is provided with a first connecting wheel 41 and a second connecting wheel 42. The motor 21 of the driving member 2 drives the first roller 311 to rotate, and the first roller 311 drives the two adjacent second rollers 312 to rotate through the first connecting wheel 41 and the second connecting wheel 42, and sequentially transmits power to the remaining second rollers 312, so as to realize the linkage of all rolling components 3.

[0055] In one embodiment, if Figure 2 As shown, the plurality of side panels include a first side panel 12, a second side panel 13, a third side panel 14 and a fourth side panel 15, the first side panel 12, the second side panel 13, the third side panel 14 and the fourth side panel 15 are sequentially connected around the outer edge of the bottom panel 11, the first side panel 12 and the third side panel 14 are arranged opposite to each other, and the second side panel 13 and the fourth side panel 15 are arranged opposite to each other, wherein a avoidance hole 121 is arranged on the first side panel 12, one end of the first roller 311 passes through the avoidance hole 121 and is connected to the output end of the motor 21 of the driving member 2, and the other end of the first roller 311 is connected to the third side panel 14 or the second side panel 13. The second roller 312 is connected between the first side panel 12 and the second side panel 13, and / or the second roller 312 is connected between the first side panel 12 and the third side panel 14, and / or the second roller 312 is connected between the third side panel 14 and the fourth side panel 15.

[0056] Among them, the setting position of the second roller 312 is determined according to its extension direction. In this embodiment, the central axis of the second roller 312 is 45 degrees with the X-axis and the Y-axis. The other end of the first roller 311 is connected to the third side plate 14. The second roller 312 is arranged between the first side plate 12 and the second side plate 13, between the first side plate 12 and the third side plate 14, and between the third side plate 14 and the fourth side plate 15.

[0057] In one embodiment, if Figure 1 As shown, the carrier 1 further includes a board edge support 16, which is arranged on the first side plate 12 and the second side plate 13. The intersection of the first side plate 12 and the second side plate 13 is the lower left corner of the carrier 1. When the PCB is moved to the lower left corner, the PCB is located above the first side plate 12 and the second side plate 13. By arranging the board edge support 16 on the first side plate 12 and the second side plate 13, it is possible to prevent the first side plate 12 and the second side plate 13 from scratching the PCB. The board edge support 16 is made of non-metallic material.

[0058] In one embodiment, if Figure 1 , Figure 3As shown, the sheet positioning device further includes a first sheet edge sensor 17, which is arranged on a side of the first side plate 12 close to the second side plate 13, and the first sheet edge sensor 17 is used to detect whether the sheet has moved to the target position. And / or, the sheet positioning device further includes a second sheet edge sensor 18, which is arranged on a side of the second side plate 13 close to the first side plate 12, and the second sheet edge sensor 18 is used to detect whether the sheet has moved to the target position. The first sheet edge sensor 17 and the second sheet edge sensor 18 are arranged close to the lower left corner of the carrier 1, and the motor 21 drives all the rollers 31 to rotate, driving the PCB board to move to the lower left corner. Even if the PCB board is skewed during the conveying process, it is easy to be sensed by the first sheet edge sensor 17 and the second sheet edge sensor 18. When any one of the first sheet edge sensor 17 and the second sheet edge sensor 18 detects the PCB board, it indicates that the PCB board has basically reached the target position, the motor 21 stops moving, and the roller 31 stops rotating.

[0059] In one embodiment, if Figure 1 , Figure 2 As shown, the sheet positioning device further includes a first support wheel assembly 51 and a second support wheel assembly 52, which are rotatably connected to the carrier plate 1, and a plurality of rolling assemblies 3 are located between the first support wheel assembly 51 and the second support wheel assembly 52. ​​The first support wheel assembly 51 and the second support wheel assembly 52 only serve as support and are not driven by the motor 21.

[0060] The first support wheel assembly 51 includes a first connecting shaft 511 and a first support wheel 512 arranged on the first connecting shaft 511, the first connecting shaft 511 is rotatably connected to the carrier plate 1 and arranged between the first side plate 12 and the second side plate 13. The second support wheel assembly 52 includes a second connecting shaft 521 and a second support wheel 522 arranged on the second connecting shaft 521, the second connecting shaft 521 is rotatably connected to the carrier plate 1 and arranged between the third side plate 14 and the fourth side plate 15, and the first connecting shaft 511, the second connecting shaft 521 and the roller 31 are arranged in parallel. The first support wheel 512 and the second support wheel 522 can support the corners of the PCB board so that the force on the PCB board is balanced.

[0061] In one embodiment, if Figure 3 , Figure 4 As shown, the material plate positioning device also includes a first positioning component 6 and a second positioning component 7. The PCB board may be skewed during the process of being conveyed to the lower left corner. The first positioning component 6 and the second positioning component 7 are used to adjust the angle deviation of the PCB board.

[0062] The first positioning assembly 6 includes a first positioning cylinder 61, a first positioning plate 62 and a first positioning stop column 63. The first positioning cylinder 61 is mounted on the bottom plate 11 of the carrier plate 1. The output end of the first positioning cylinder 61 is connected to the first positioning plate 62. The first positioning stop column 63 is mounted on the first positioning plate 62. The second positioning assembly 7 includes a second positioning cylinder 71, a second positioning plate 72 and a second positioning stop column 73. The second positioning cylinder 71 is mounted on the carrier plate 1. The output end of the second positioning cylinder 71 is connected to the second positioning plate 72. The second positioning stop column 73 is mounted on the second positioning plate 72. The first positioning cylinder 61 can drive the first positioning plate 62 to move toward the material plate along the X direction and drive the first positioning stop column 63 to abut against the first side edge of the material plate, so as to adjust the position of the PCB board in the X direction. The second positioning cylinder 71 can drive the second positioning plate 72 to move toward the material plate along the Y direction and drive the second positioning stop column 73 to the second side of the material plate adjacent to the first side, so as to adjust the position of the PCB board in the Y direction. The first positioning component 6 and the second positioning component 7 cooperate with each other to realize the adjustment of the X direction and Y direction on the horizontal plane of the PCB board, so that the material plate is deflected by a preset angle.

[0063] In one embodiment, if Figure 1 As shown, two first positioning components 6 are provided and are arranged close to the first side plate 12, namely the first upper positioning component 6a and the first lower positioning component 6b. The first upper positioning component 6a is farther away from the second side plate 13 than the first lower positioning component 6b. When the first positioning stop columns 63 of the two first positioning components 6 are respectively abutted against the PCB board, the moving strokes of the first upper positioning component 6a and the first lower positioning component 6b are different.

[0064] The second positioning assembly 7 is provided with two second side plates 13 which are close to each other, namely a second upper positioning assembly 7a and a second lower positioning assembly 7b. The second lower positioning assembly 7b is closer to the first side plate 12 than the second upper positioning assembly 7a. When the second positioning stop columns 73 of the two second positioning assemblies 7 are respectively abutted against the PCB board, the second lower positioning assembly 7b and the second upper positioning assembly 7a have different moving strokes. By setting different moving strokes, the PCB board can be deflected in a clockwise or counterclockwise direction, so that the PCB board can be clamped by the robot after positioning is completed.

[0065] Specifically, when the stroke of the first upper positioning component 6a is smaller than the stroke of the first lower positioning component 6b, and the stroke of the second lower positioning component 7b is smaller than the stroke of the second upper positioning component 7a, the PCB board performs counterclockwise angular deflection. When the stroke of the first upper positioning component 6a is greater than the stroke of the first lower positioning component 6b, and the stroke of the second lower positioning component 7b is greater than the stroke of the second upper positioning component 7a, the PCB board performs clockwise angular deflection.

[0066] In one embodiment, if Figure 3 , Figure 4 As shown, the sheet positioning device further includes a first compensation component 8 and a second compensation component 9, which are mounted on the bottom plate 11. The first positioning component 6 further includes a first guide rod 64, one end of which is connected to the first positioning plate 62, and the other end of which is connected to the first positioning cylinder 61. The first guide rod 64 is used to abut against the first compensation component 8. When the first positioning cylinder 61 drives the first guide rod 64 to move until the other end of the first guide rod 64 abuts against the first compensation component 8, the first guide rod 64 stops moving, thereby limiting the stroke of the first positioning component 6.

[0067] The second positioning assembly 7 further includes a second guide rod 74, one end of which is connected to the second positioning plate 72, and the other end of which is connected to the second positioning cylinder 71. The second guide rod 74 is used to abut against the second compensation assembly 9. When the second positioning cylinder 71 drives the second guide rod 74 to move until the other end of the second guide rod 74 abuts against the second compensation assembly 9, the second guide rod 74 stops moving, thereby limiting the stroke of the second positioning assembly 7.

[0068] The distance between the first guide rod 64 of the first upper positioning assembly 6a and the first compensation assembly 8 is different from the distance between the first guide rod 64 of the first lower positioning assembly 6b and the first compensation assembly 8. When the first positioning stopper 63 of the two first positioning assemblies 6 abuts against the PCB board, the moving strokes of the first upper positioning assembly 6a and the first lower positioning assembly 6b are different. The first compensation assembly 8 limits the first upper positioning assembly 6a and the first lower positioning assembly 6b, and the first side of the PCB board is tilted by controlling the moving strokes of the first upper positioning assembly 6a and the first lower positioning assembly 6b.

[0069] The distance between the second guide rod 74 of the second lower positioning assembly 7b and the second compensation assembly 9 is different from the distance between the second guide rod 74 of the second upper positioning assembly 7a and the second compensation assembly 9. When the second positioning stoppers of the two second positioning assemblies 7 abut against the PCB board, the second upper positioning assembly 7a and the second lower positioning assembly 7b have different moving strokes. The second compensation assembly 9 limits the second upper positioning assembly 7a and the second lower positioning assembly 7b, and controls the moving strokes of the second upper positioning assembly 7a and the second lower positioning assembly 7b, so that the second side of the PCB board is tilted.

[0070] In one embodiment, if Figure 4As shown, the first compensation component 8 includes a first limiting cylinder 81, a first connecting plate 82, a first limiting screw 83 and a second limiting screw 84. The first connecting plate 82 is connected to the output end of the first limiting cylinder 81. The first limiting screw 83 and the second limiting screw 84 are respectively threadedly connected to the two ends of the first connecting plate 82. The first limiting screw 83 is used to abut the first guide rod 64 of the first upper positioning component 6a, and the second limiting screw 84 is used to abut the first guide rod 64 of the first lower positioning component 6b.

[0071] When adjusting the moving stroke of the two first positioning assemblies 6, the first limit screw 83 and the second limit screw 84 are adjusted according to the required deflection angle, so that the length of the first limit screw 83 protruding from the first connecting plate 82 is different from the length of the second limit screw 84 protruding from the first connecting plate 82.

[0072] After debugging is completed, the first limiting cylinder 81 extends out and drives the first connecting plate 82 to move, so that the first limiting screw 83 and the second limiting screw 84 are in the preset position, the first positioning cylinder 61 of the first upper positioning assembly 6a extends out, and the first positioning cylinder 61 of the first lower positioning assembly 6b extends out, so that the first positioning stop column 63 of the first upper positioning assembly 6a and the first positioning stop column 63 of the first lower positioning assembly 6b are in the limit position of the maximum distance, and after the manipulator places the PCB board on the rolling assembly 3, the first positioning cylinder 61 of the first upper positioning assembly 6a and the first positioning cylinder 61 of the first lower positioning assembly 6b retract, and the first positioning stop column 63 of the first upper positioning assembly 6a and the first positioning stop column 63 of the first lower positioning assembly 6b abut against the first side of the PCB board, so that the PCB board moves in the X direction.

[0073] When the stroke of the first upper positioning assembly 6a is less than the stroke of the first lower positioning assembly 6b, the first positioning stopper 63 of the first upper positioning assembly 6a first abuts against the first limit screw 83, the first positioning cylinder 61 of the first upper positioning assembly 6a stops moving, the first positioning stopper 63 of the first lower positioning assembly 6b continues to move for a distance and then abuts against the second limit screw 84, the first positioning cylinder 61 of the first lower positioning assembly 6b stops moving again, at this time, the first side of the PCB board tilts, and the angle deviation of the PCB board is adjusted. Conversely, when the stroke of the first upper positioning assembly 6a is greater than the stroke of the first lower positioning assembly 6b, the first positioning stopper 63 of the first lower positioning assembly 6b first abuts against the second limit screw 84, the first positioning stopper 63 of the first upper positioning assembly 6a continues to move for a distance and then abuts against the first limit screw 83.

[0074] In one embodiment, if Figure 4As shown, the second compensation assembly 9 includes a second limiting cylinder 91, a second connecting plate 92, a third limiting screw 93 and a fourth limiting screw 94. The second connecting plate 92 is connected to the output end of the second limiting cylinder 91. The third limiting screw 93 and the fourth limiting screw 94 are respectively threadedly connected to the two ends of the second connecting plate 92. The third limiting screw 93 is used to abut the second guide rod 74 of the second lower positioning assembly 7b, and the fourth limiting screw 94 is used to abut the second guide rod 74 of the second upper positioning assembly 7a.

[0075] When adjusting the moving stroke of the two second positioning assemblies 7, the third limit screw 93 and the fourth limit screw 94 are adjusted according to the required deflection angle, so that the length of the third limit screw 93 protruding from the second connecting plate 92 is different from the length of the fourth limit screw 94 protruding from the second connecting plate 92.

[0076] After debugging is completed, the second limiting cylinder 91 extends out and drives the second connecting plate 92 to move, so that the third limiting screw 93 and the fourth limiting screw 94 are in the preset position, the second positioning cylinder 71 of the second upper positioning assembly 7a extends out, and the second positioning cylinder 71 of the second lower positioning assembly 7b extends out, so that the second positioning stop column 73 of the second lower positioning assembly 7b and the second positioning stop column 73 of the second upper positioning assembly 7a are in the limit position of the maximum distance. After the manipulator places the PCB board on the rolling assembly 3, the second positioning cylinder 71 of the second upper positioning assembly 7a and the second positioning cylinder 71 of the second lower positioning assembly 7b retract, and the second positioning stop column 73 of the second upper positioning assembly 7a and the second positioning stop column 73 of the second lower positioning assembly 7b abut against the second side edge of the PCB board, so that the PCB board moves in the Y direction.

[0077] When the stroke of the second lower positioning assembly 7b is less than the stroke of the second upper positioning assembly 7a, the second positioning stopper 73 of the second lower positioning assembly 7b first abuts against the third limit screw 93, the second positioning cylinder 71 of the second lower positioning assembly 7b stops moving, the second positioning stopper 73 of the second upper positioning assembly 7a continues to move for a distance and then abuts against the fourth limit screw 94, the second positioning cylinder 71 of the second upper positioning assembly 7a stops moving again, at this time the second side of the PCB board tilts, and the angle deviation of the PCB board is adjusted. Conversely, when the stroke of the second lower positioning assembly 7b is greater than the stroke of the second upper positioning assembly 7a, the second positioning stopper 73 of the second upper positioning assembly 7a first abuts against the fourth limit screw 94, the second positioning stopper 73 of the second lower positioning assembly 7b continues to move for a distance and then abuts against the third limit screw 93.

[0078] In one embodiment, if Figure 3 , Figure 4As shown, the first positioning assembly 6 further includes a first whole-board sensor 65 disposed on the first positioning plate 62, the first whole-board sensor 65 is disposed on the first connecting plate 82 of the first upper positioning assembly 6a, and the first whole-board sensor 65 is used to detect the position of the first side edge of the material plate. The second positioning assembly 7 further includes a second whole-board sensor 75 disposed on the second positioning plate 72, the second whole-board sensor 75 is disposed on the second connecting plate 92 of the second lower positioning assembly 7b, and the second whole-board sensor 75 is used to detect the position of the second side edge of the material plate. According to the detection results of the first whole-board sensor 65 and the second whole-board sensor 75, it can be determined whether the material plate has been adjusted.

[0079] Among them, the first upper positioning component 6a is provided with a first whole board sensor 65 and multiple first positioning stop columns 63, and the first lower positioning component 6b is provided with a first positioning stop column 63. The multiple first positioning stop columns 63 of the first upper positioning component 6a and the first positioning stop column 63 on the first lower positioning component 6b can abut against the PCB board to drive the PCB board to move.

[0080] The second upper positioning assembly 7a is provided with a second whole board sensor 75 and a plurality of second positioning stop posts 73, and the second lower positioning assembly 7b is provided with a second positioning stop post 73. The plurality of second positioning stop posts 73 of the second upper positioning assembly 7a and the second positioning stop post 73 of the second lower positioning assembly 7b can both abut against the PCB board to drive the PCB board to move.

[0081] Regardless of the size of the PCB board, the board is placed in the center. The distance d1 between the first side of the PCB board and the first positioning stop column 63 is not necessarily equal to the distance d2 between the second side of the PCB board and the second positioning stop column 73. The PCB board moves toward the lower left corner (i.e., an angle of 45°) along the X / Y angle bisector. Therefore, one of the first side and the second side of the PCB board will reach the board edge sensor position earlier than the other. The rolling component 3 cyclically moves to reduce d1 and d2 and make them equal, and finally d1=d2=0 is completed.

[0082] The PCB board is detected by any one of the first board edge sensor 17 and the second board edge sensor 18, so that after the motor 21 stops, the first positioning cylinder 61 drives the first positioning stopper 63 to abut the first side of the PCB board. When the first whole board sensor 65 senses the PCB board, it indicates that the first side of the PCB board is adjusted. The second positioning cylinder 71 drives the second positioning stopper 73 to abut the second side of the PCB board adjacent to the first side. When the second whole board sensor 75 senses the PCB board, it indicates that the second side of the PCB board is adjusted. When both the first whole board sensor 65 and the second whole board sensor 75 sense the PCB board, it indicates that the positioning of the PCB board is completed, and the robot can take away the positioned PCB board. If only one of the first whole board sensor 65 and the second whole board sensor 75 senses the PCB board or neither senses the PCB board, the motor 21 rotates again, and the rolling assembly 3 conveys the PCB board and the first positioning assembly 6 and the second positioning assembly 7 are repeatedly positioned and adjusted until both the first whole board sensor 65 and the second whole board sensor 75 sense the PCB board.

[0083] When the PCB board moves to the lower left corner, two sensings are performed in this embodiment. Through the first sensing of the first board edge sensor 17 and the second board edge sensor 18, the PCB board can be sensed in advance to stop the action of the motor 21, and then the first positioning stop column 63 and the second positioning stop column 73 are used to move the board edge, and the first whole board sensor 65 and the second whole board sensor 75 perform the second sensing. By increasing the sensing of the first board edge sensor 17 and the second board edge sensor 18, the situation in which the PCB board is not sensed by the first whole board sensor 65 and the second whole board sensor 75 when the PCB board is skewed is avoided.

[0084] After the motor 21 stops in advance, the PCB board slides slowly and is not easily damaged. Otherwise, when the PCB board moves rapidly to the lower left corner driven by the rolling assembly 3 and is suddenly blocked by the first positioning stop column 63 and the second positioning stop column 73, the roller 31 continues to move for 1 to 2 seconds due to signal delay and other reasons, which will cause scratches on the PCB board.

[0085] On the other hand, an embodiment of the utility model provides a laser drilling machine, including the plate positioning device of the above embodiment.

[0086] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A sheet positioning device, characterized in that: It comprises a carrier plate, a driving member, a plurality of rolling assemblies and a plurality of synchronization assemblies, wherein the driving member is mounted on the carrier plate, a plurality of the rolling assemblies are arranged in parallel along a preset direction, the rolling assemblies are rotatably connected to the carrier plate, and the output end of the driving member is connected to any of the rolling assemblies; Any two adjacent rolling assemblies are connected via a synchronization assembly, and the driving member can drive the rolling assemblies connected thereto to rotate, and drive other rolling assemblies to rotate via the synchronization assembly, so as to move the material sheet placed on the rolling assembly to the target position according to the preset direction.

2. The sheet positioning device according to claim 1, characterized in that: The carrier plate includes a bottom plate and a plurality of side plates arranged around the outer edge of the bottom plate. The central axis of the rolling assembly forms an acute angle with the projection of the central axis in a direction perpendicular to any of the side plates on a plane parallel to the carrier plate.

3. The sheet positioning device according to claim 2, characterized in that: The rolling assembly includes a roller and a plurality of rollers, the plurality of rollers are arranged at intervals along the extending direction of the roller, and all the rollers are arranged in parallel along the preset direction.

4. The sheet positioning device according to claim 3, characterized in that: The synchronous component includes a connecting wheel and a first synchronous belt. One connecting wheel is respectively arranged on any two adjacent rollers, and the first synchronous belt is wound between the connecting wheels on the two adjacent rollers.

5. The sheet positioning device according to claim 3, characterized in that: The plurality of rollers include a first roller and a plurality of second rollers, one end of the first roller is connected to the output end of the driving member, the other end of the first roller is rotatably connected to the carrier, and both ends of the second roller are rotatably connected to the carrier; The first roller and the plurality of second rollers are arranged in parallel in the preset direction.

6. The sheet positioning device according to claim 5, characterized in that: The plurality of side panels include a first side panel, a second side panel, a third side panel and a fourth side panel, the first side panel and the third side panel are arranged opposite to each other, the second side panel and the fourth side panel are arranged opposite to each other, the first side panel is provided with an avoidance hole, one end of the first roller passes through the avoidance hole and is connected to the output end of the driving member, and the other end of the first roller is connected to the third side panel or the second side panel; The second roller is connected between the first side plate and the second side plate, and / or the second roller is connected between the first side plate and the third side plate, and / or the second roller is connected between the third side plate and the fourth side plate.

7. The sheet positioning device according to claim 6, characterized in that: The carrier plate further includes a plate edge support member, and the plate edge support member is disposed on the first side plate and the second side plate.

8. The sheet positioning device according to claim 6, characterized in that: It also includes a first board edge sensor, which is arranged on a side of the first side plate close to the second side plate, and is used to detect whether the material plate moves to the target position; and / or, It also includes a second board edge sensor, which is arranged on a side of the second side plate close to the first side plate, and is used to detect whether the material plate moves to the target position.

9. The sheet positioning device according to claim 3, characterized in that: It also includes a first supporting wheel assembly and a second supporting wheel assembly, wherein the first supporting wheel assembly and the second supporting wheel assembly are rotatably connected to the carrier plate, and a plurality of rolling assemblies are located between the first supporting wheel assembly and the second supporting wheel assembly.

10. The sheet positioning device according to claim 9, characterized in that: The first supporting wheel assembly comprises a first connecting shaft and a first supporting wheel arranged on the first connecting shaft, and the first connecting shaft is rotatably connected to the carrier; the second supporting wheel assembly comprises a second connecting shaft and a second supporting wheel arranged on the second connecting shaft, and the second connecting shaft is rotatably connected to the carrier; The first connecting shaft, the second connecting shaft and the rolling shaft are arranged in parallel.

11. The sheet positioning device according to claim 1, characterized in that: Also includes a first positioning assembly and a second positioning assembly; The first positioning assembly includes a first positioning cylinder, a first positioning plate and a first positioning stop column, wherein the first positioning cylinder is mounted on the carrier plate, the output end of the first positioning cylinder is connected to the first positioning plate, and the first positioning stop column is mounted on the first positioning plate; the second positioning assembly includes a second positioning cylinder, a second positioning plate and a second positioning stop column, wherein the second positioning cylinder is mounted on the carrier plate, the output end of the second positioning cylinder is connected to the second positioning plate, and the second positioning stop column is mounted on the second positioning plate; The first positioning cylinder can drive the first positioning plate to move toward the material plate and drive the first positioning stop column to abut the first side edge of the material plate. The second positioning cylinder can drive the second positioning plate to move toward the material plate and drive the second positioning stop column to abut the second side edge of the material plate adjacent to the first side edge, so that the material plate is deflected by a preset angle.

12. The sheet positioning device according to claim 11, characterized in that: The first positioning assembly also includes a first whole plate sensor disposed on the first positioning plate, and the first whole plate sensor is used to detect the position of the first side edge of the material plate; the second positioning assembly also includes a second whole plate sensor disposed on the second positioning plate, and the second whole plate sensor is used to detect the position of the second side edge of the material plate.

13. The sheet positioning device according to claim 12, characterized in that: The first positioning assembly comprises a first upper positioning assembly and a first lower positioning assembly, the first upper positioning assembly is provided with the first whole-board sensor and a plurality of the first positioning stop posts, and the first lower positioning assembly is provided with one first positioning stop post; The second positioning assembly includes a second upper positioning assembly and a second lower positioning assembly. The second upper positioning assembly is provided with the second whole-board sensor and a plurality of the second positioning stop posts. The second lower positioning assembly is provided with one second positioning stop post.

14. A laser drilling machine, characterized in that: It comprises the sheet positioning device as described in any one of claims 1-13.

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