A table laser transfer device with an auxiliary vision system

Abstract

The utility model discloses a desktop laser transfer printing device with auxiliary vision system, including stand and transfer frame, the upper end horizontal sliding connection of stand has the sliding seat, the upper rotation of stand is connected with the screw rod, the transfer head is provided on the sliding seat, the transfer head includes laser, first camera module, common lens, the second camera module is located in the common lens is close to the transfer frame one side and sets up, has high flexibility, low in cost, occupies small space and so on advantage, the wide field -of -view camera module for global observation transfer printing station and the narrow field -of -view camera module for realizing accurate transfer printing are provided on the transfer head, improve the positioning processing speed under the premise of guaranteeing accurate transfer printing, and then improve transfer printing efficiency. Meanwhile, two camera modules also increase the adaptation ability to large or special-shaped workpiece, and the positioning part can also be compatible with workpieces of different thicknesses, thereby improving the application range of the transfer printing device.

Description

Technical Field

[0001] This utility model belongs to the field of laser transfer technology, and in particular relates to a desktop laser transfer device with an auxiliary vision system. Background Technology

[0002] Laser transfer is a digital transfer technology that uses laser as an energy source and precisely controls the laser's energy, spot size, and scanning path to transfer transfer materials (such as ink, metal foil, and thin film pattern layers) from a carrier to a target substrate (such as plastic, metal, and glass). The core of this technology is to use laser to replace traditional contact transfer methods such as hot pressing and chemical etching, thereby achieving non-contact, high-precision pattern / material transfer.

[0003] Chinese patent document CN104647885B discloses a laser transfer alignment device for electrode laser transfer printing. It includes: a paste carrier having at least one metal electrode cutout pattern corresponding to the metal electrode of a battery cell to be printed at the printing station; a laser having a laser scanning head and a controller, the signal input terminal of the laser scanning head being connected to the signal output terminal of the controller; and a paste carrier visual positioning system having a reflector and multiple cameras, the signal output terminals of the multiple cameras being connected to the signal input terminal of the controller. When the battery cell to be printed is located at the printing station, the reflector reflects the image of the metal electrode cutout pattern on the paste carrier into the multiple cameras. This device achieves precise and numerical positioning of the pattern during the laser transfer printing process, improves alignment accuracy based on the actual pattern of the paste carrier, reduces printing defects, and achieves more refined printing.

[0004] In existing technologies, laser transfer prioritizes precision. Therefore, the cameras in laser transfer equipment are often narrow-field-of-view cameras, achieving higher resolution and high-precision focusing within a limited field of view. As described in the aforementioned patent, multiple narrow-field-of-view cameras are simultaneously arrayed to expand the field of view of the vision system, enabling multi-angle observation and improving the efficiency of laser transfer. However, this patent solution is only applicable to "assembly line" type transfer equipment. For desktop transfer equipment, it would significantly increase the equipment size, reducing the advantages of desktop transfer machines in terms of flexibility and small footprint. Furthermore, it would mean an increased computational load on the control system, and the expected improvement in transfer efficiency would not be achieved. Utility Model Content

[0005] To overcome the technical problems of existing desktop laser transfer equipment, where the built-in synchronous camera has a narrow field of view and insufficient imaging clarity, making it unable to capture the entire workpiece at once, resulting in slow positioning and processing speeds and poor adaptability to workpieces (especially irregularly shaped or large workpieces), this invention aims to provide a desktop laser transfer device with an auxiliary vision system. This device uses a wide-field-of-view camera module and a narrow-field-of-view camera module on the transfer head. The wide-field-of-view camera module first aligns the chip array numbers, then slides the transfer head to the working position, where the narrow-field-of-view camera module and the laser complete the transfer process. This improves transfer efficiency while ensuring transfer quality.

[0006] To achieve the above objectives, this utility model adopts the following technical solution: a desktop laser transfer device with an auxiliary vision system, comprising a column and a transfer frame mounted on a worktable; a slide block is horizontally slidably connected to the upper end of the column above the transfer frame; a lead screw is rotatably connected to the column and driven by the slide block; a transfer head is mounted on the slide block; the transfer head includes a laser, a first camera module, and a shared lens for use by the laser and the first camera module; wherein, the transfer head further includes a second camera module located on the side of the shared lens near the transfer frame; the focal length of the first camera module is 21mm; the focal length of the second camera module is 65mm.

[0007] Furthermore, a fixed plate is provided on the slide block; a sliding plate is slidably connected to the fixed plate longitudinally, and the transfer head is disposed on the sliding plate; a fine-tuning knob for driving the sliding plate to slide downward is rotatably connected to the upper end of the fixed plate; a tension spring for causing the sliding plate to slide upward is provided between the sliding plate and the fixed plate.

[0008] Specifically, the fine-tuning knob is threadedly connected to the fixed plate; the lower end of the fine-tuning knob abuts against the upper end of the sliding plate.

[0009] The height between the transfer head and the transfer frame can be adjusted by rotating the fine-tuning knob to adapt to various transfer conditions.

[0010] Furthermore, a transverse motor is provided on the side of the column away from the transfer frame; a synchronous pulley set for transmission is provided between the transverse motor and the lead screw; and a cover for shielding the synchronous pulley set is provided on the column.

[0011] Preferably, a support rod is longitudinally arranged at the upper end of the slide block; an arc-shaped cantilever plate is arranged at the upper end of the support rod, the center of the arc is located below the cantilever plate; and the end of the cantilever plate is located directly above the common lens.

[0012] The cantilever plate is used to organize the data cable and power cable of the transfer head, prevent the cable from interfering with the moving transfer head, avoid vibration of the transfer head, and ensure transfer quality.

[0013] Furthermore, the upper end of the transfer frame is provided with a through hole; the side wall of the transfer frame is provided with a notch communicating with the through hole; the outer periphery of the through hole is provided with three positioning parts evenly distributed along the circumferential direction for fixing the transfer part; the positioning part includes a hand screw threaded to the transfer frame and a pressure plate provided on the hand screw.

[0014] Specifically, the middle part of the pressure plate is located on the hand-tightening screw; a height adjustment screw is threaded to the lower end of one end of the pressure plate, and the other end of the pressure plate is located directly above the through hole.

[0015] By adjusting the height of the adjusting screw, the pressure plate can accommodate transfer sections of different thicknesses.

[0016] Furthermore, the transfer frame is provided with a plurality of positioning posts evenly distributed along the circumferential direction on the outer periphery of the through hole; the positioning posts are used to position the transfer part; the positioning posts are located on the side of the hand-tightening screw close to the through hole.

[0017] Specifically, an electric lifting module is provided directly below the through hole in the transfer frame; a rotary fine-tuning module is provided at the upper end of the moving end of the electric lifting module; and a receiving part is provided on the moving end of the rotary fine-tuning module.

[0018] Specifically, a translational fine-tuning module is provided at the inner bottom end of the transfer frame; the translational fine-tuning module includes a first linear fine-tuning module provided at the inner bottom end of the transfer frame and a second linear fine-tuning module provided on the moving end of the first linear fine-tuning module; the adjustment direction of the first linear fine-tuning module is perpendicular to the adjustment direction of the second linear fine-tuning module; the electric lifting module is provided on the moving end of the second linear fine-tuning module.

[0019] Compared to existing technologies, the advantages of this invention are as follows: This invention is a desktop laser transfer device, which offers advantages such as high flexibility, low cost, and small footprint. The transfer head is equipped with a wide-field-of-view camera module for global observation of the transfer station and a narrow-field-of-view camera module for precise transfer. This ensures accurate transfer while increasing positioning processing speed, thereby improving transfer efficiency. Simultaneously, the two camera modules enhance adaptability to large or irregularly shaped workpieces, and the positioning section is also compatible with workpieces of varying thicknesses, expanding the application range of the transfer device. Attached Figure Description

[0020] Figure 1This is a schematic diagram of the structure of this utility model;

[0021] Figure 2 This is an exploded view of the components of this utility model;

[0022] Figure 3 This is a schematic diagram of the structure of the transfer head of this utility model;

[0023] Figure 4 This is a schematic diagram of the drive structure of the transfer head of this utility model;

[0024] Figure 5 This is a schematic diagram of the transfer frame of this utility model;

[0025] Figure 6 For the present utility model Figure 5 A magnified structural diagram of part A in the middle.

[0026] In the diagram: 11. Column; 12. Transfer frame; 121. Through hole; 13. Positioning post; 21. Laser; 22. First camera module; 221. Manual focusing device; 23. Second camera module; 24. Shared lens; 251. Fixing plate; 252. Sliding plate; 253. Fine adjustment knob; 254. Tension spring; 31. Slide; 311. Support rod; 312. Cantilever plate; 32. Lead screw nut; 33. Lead screw; 34. Horizontal movement motor; 35. Synchronous pulley group; 36. Guide rail; 37. Slider; 38. Cover; 41. Translation fine adjustment module; 42. Electric lifting module; 43. Rotation fine adjustment module; 44. Receiving unit; 45. Transfer unit; 5. Positioning unit; 51. Pressure plate; 52. Height adjustment screw; 53. Hand-tightening screw. Detailed Implementation

[0027] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. It should be noted that, without conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0028] In the description of this utility model, it should be noted that the directional terms such as "center", "lateral", "longitudinal", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", and "counterclockwise" are based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. They should not be construed as limiting the specific protection scope of this utility model.

[0029] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features. Thus, the use of "first" and "second" to define a feature may explicitly or implicitly include one or more of that feature. In this description of the utility model, "a number" means two or more, unless otherwise explicitly specified.

[0030] In this utility model, unless otherwise explicitly specified and limited, terms such as "set" and "install" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can also refer to a mechanical connection; they can refer to a direct connection or a connection through an intermediate medium; or they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0031] See Figures 1-6 A desktop laser transfer device with an auxiliary vision system includes a column 11 and a transfer frame 12 mounted on a worktable; a slide block 31 is horizontally slidably connected to the upper end of the column 11 above the transfer frame 12; a lead screw 33 is rotatably connected to the column 11 and is driven by the slide block 31; a lead screw nut 32 is threadedly connected to the lead screw 33 at the lower end of the slide block 31; a transverse motor 34 is mounted on the side of the column 11 away from the transfer frame 12; a synchronous pulley set 35 for transmission is provided between the transverse motor 34 and the lead screw 33; and a cover 38 is provided on the column 11 to shield the synchronous pulley set 35.

[0032] The synchronous pulley set 35 includes a first synchronous pulley mounted on the output shaft of the transverse motor 34, a second synchronous pulley mounted on the lead screw 33, and a synchronous belt mounted between the first and second synchronous pulleys. Two guide rails 36 are horizontally mounted on the column 11; the lower end of the slide block 31 is provided with four sliders 37 that are slidably connected to the corresponding two guide rails 36.

[0033] A fixed plate 251 is provided on the slide block 31; a sliding plate 252 is slidably connected to the fixed plate 251 in the longitudinal direction; a fine adjustment knob 253 is rotatably connected to the upper end of the fixed plate 251, with the lower end of the rotating shaft abutting against the upper end of the sliding plate 252; a tension spring 254 is provided between the sliding plate 252 and the fixed plate 251 to make the sliding plate 252 slide upward.

[0034] A transfer head is provided on the sliding plate 252; the transfer head includes a laser 21 disposed on the sliding plate 252, a first camera module 22 disposed on the sliding plate 252, a common lens 24 disposed on the sliding plate 252 for use by the laser 21 and the first camera module 22, and a second camera module 23 disposed on the sliding plate 252 on the side of the common lens 24 near the transfer frame 12; the focal length of the first camera module 22 is 21mm; the focal length of the second camera module 23 is 65mm; a manual focusing device 221 for adjusting the focal length is slidably connected to the first camera module 22.

[0035] A support rod 311 is longitudinally arranged at the upper end of the slide block 31; an arc-shaped cantilever plate 312 is arranged at the upper end of the support rod 311, and the center of the arc is located below the cantilever plate 312; the end of the cantilever plate 312 is located directly above the common lens 24.

[0036] The transfer frame 12 is a cubic frame structure. The upper end of the transfer frame 12 is provided with a through hole 121 that runs vertically through the top and bottom. The side wall of the transfer frame 12 is provided with a notch that communicates with the through hole 121. Three positioning parts 5 are provided on the outer periphery of the through hole 121, which are evenly distributed along the circumferential direction for fixing the transfer part 45. The transfer part 45 is the workpiece, which includes an upper loading stage and an original substrate with a chip attached to the lower end of the upper loading stage.

[0037] The positioning part 5 includes a hand screw 53 threaded to the upper end of the transfer frame 12, a pressure plate 51 sleeved on the hand screw 53 in the middle, and a height adjustment screw 52 threaded to the lower end of one end of the pressure plate 51; the other end of the pressure plate 51 is located directly above the through hole 121.

[0038] The transfer frame 12 is provided with a plurality of positioning posts 13 evenly distributed along the circumferential direction on the outer periphery of the through hole 121; the positioning posts 13 are used to position the transfer part 45; the positioning posts 13 are located on the side of the hand screw 53 near the through hole 121.

[0039] An electric lifting module 42 is provided inside the transfer frame 12 directly below the through hole 121; a rotary fine-tuning module 43 is provided at the upper end of the moving end of the electric lifting module 42; a receiving part 44 is provided on the moving end of the rotary fine-tuning module 43; the receiving part 44 includes a chip download stage and a receiving substrate for receiving chips provided at the upper end of the chip download stage.

[0040] The transfer frame 12 is provided with a translation fine adjustment module 41 at its inner bottom end; the translation fine adjustment module 41 includes a first linear fine adjustment module provided at the inner bottom end of the transfer frame 12 and a second linear fine adjustment module provided on the moving end of the first linear fine adjustment module; the adjustment direction of the first linear fine adjustment module is perpendicular to the adjustment direction of the second linear fine adjustment module; the electric lifting module 42 is provided on the moving end of the second linear fine adjustment module.

[0041] Operation flow: ① First, the first camera module observes the chip features on the transfer frame, numbers the chip array on it, locates and selects the chip to be processed; ② The transverse motor drives the synchronous wheel column to rotate the lead screw, causing the slide to move to the right, so that the laser is aligned with the transfer part below; ③ Perform the laser processing operation on the chip.

[0042] The above description is only a specific embodiment of the present utility model, but the technical features of the present utility model are not limited thereto. Any changes or modifications made by those skilled in the art within the scope of the present utility model are covered by the patent scope of the present utility model.

Claims

1. A desktop laser transfer device with an auxiliary vision system, characterized in that: The device includes a column and a transfer frame mounted on a worktable; a slide block is horizontally slidably connected to the upper end of the column above the transfer frame; a lead screw is rotatably connected to the column and driven by the slide block; a transfer head is mounted on the slide block; the transfer head includes a laser, a first camera module, and a shared lens for use by the laser and the first camera module; wherein, the transfer head further includes a second camera module located on the side of the shared lens near the transfer frame; the focal length of the first camera module is 21mm; the focal length of the second camera module is 65mm.

2. The transfer apparatus as described in claim 1, characterized in that: A fixed plate is provided on the slide block; a sliding plate is slidably connected to the fixed plate longitudinally, and the transfer head is disposed on the sliding plate; a fine-tuning knob for driving the sliding plate to slide downward is rotatably connected to the upper end of the fixed plate; a tension spring for causing the sliding plate to slide upward is provided between the sliding plate and the fixed plate.

3. The transfer apparatus as described in claim 2, characterized in that: The fine-tuning knob is threadedly connected to the fixed plate; the lower end of the fine-tuning knob abuts against the upper end of the sliding plate.

4. The transfer apparatus as described in any one of claims 1-3, characterized in that: A transverse motor is provided on the side of the column away from the transfer frame; a synchronous pulley set for transmission is provided between the transverse motor and the lead screw; a cover for shielding the synchronous pulley set is provided on the column.

5. The transfer apparatus as described in any one of claims 1-3, characterized in that: A support rod is longitudinally arranged at the upper end of the slide block; an arc-shaped cantilever plate is arranged at the upper end of the support rod, with the center of the arc located below the cantilever plate; the end of the cantilever plate is located directly above the common lens.

6. The transfer apparatus as described in any one of claims 1-3, characterized in that: The upper end of the transfer frame is provided with a through hole; the side wall of the transfer frame is provided with a notch communicating with the through hole; the outer periphery of the through hole is provided with three positioning parts evenly distributed along the circumferential direction for fixing the transfer part; the positioning part includes a hand screw threaded to the transfer frame and a pressure plate provided on the hand screw.

7. The transfer apparatus as described in claim 6, characterized in that: The middle part of the pressure plate is located on the hand-tightening screw; a height adjustment screw is threaded to the lower end of one end of the pressure plate, and the other end of the pressure plate is located directly above the through hole.

8. The transfer apparatus as described in claim 6, characterized in that: The transfer frame is provided with a plurality of positioning posts evenly distributed along the circumferential direction on the outer periphery of the through hole; the positioning posts are located on the side of the hand-tightening screw near the through hole.

9. The transfer apparatus as described in claim 6, characterized in that: An electric lifting module is provided directly below the through hole within the transfer frame; a rotary fine-tuning module is provided at the upper end of the moving end of the electric lifting module; and a receiving part is provided on the moving end of the rotary fine-tuning module.

10. The transfer apparatus as described in claim 9, characterized in that: The transfer frame is provided with a translation fine adjustment module at its inner bottom end; the translation fine adjustment module includes a first linear fine adjustment module provided at the inner bottom end of the transfer frame and a second linear fine adjustment module provided on the moving end of the first linear fine adjustment module. The adjustment direction of the first linear fine-tuning module is perpendicular to the adjustment direction of the second linear fine-tuning module; the electric lifting module is disposed on the moving end of the second linear fine-tuning module.

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