High-precision patching device with laser alignment mark

Abstract

The utility model relates to patch device technical field especially relates to a high accuracy patch device with laser alignment mark, including support frame, fixed mounting has baseplate bearing seat, cross laser marker, high definition industry camera and rectangle pole on the support frame, the rectangle pole is connected with the sliding seat on the sliding, the sliding seat is connected with fixed frame through electric push rod, the fixed frame is rotatably connected with first screw rod on, the first screw rod is connected with support rod on screw thread, support rod and fixed frame sliding connection, the lower extreme of support rod is connected with hollow casing through bolt, the both sides surface of hollow casing all is set up with air hole, the bottom fixed connection of hollow casing has a plurality of sucking disc, the utility model effectively solved the problem that traditional patch device is difficult to place accurately, reduces the substandard rate caused by position deviation, is favorable to the use of patch device.

Description

Technical Field

[0001] This utility model relates to the field of patch device technology, and in particular to a high-precision patch device with laser alignment marks. Background Technology

[0002] With the continuous development of society and the continuous progress of technology, the technology related to surface mount technology (SMT) devices is also constantly improving. In the process of circuit board processing, multiple processing steps are required, among which surface mount technology (SMT) devices are needed for surface mount processing.

[0003] The surface mount technology (SMT) equipment currently in use cannot accurately place electronic components on the substrate when processing circuit boards, resulting in poor processing effect, low processing accuracy, and a high defect rate, which is not conducive to the use of SMT equipment. Utility Model Content

[0004] The purpose of this invention is to address the following shortcomings in the existing technology: the current surface mount technology (SMT) devices cannot accurately place electronic components on the substrate when processing circuit boards, resulting in poor processing effect, low processing accuracy, and high defect rate, which is not conducive to the use of SMT devices. Therefore, this invention proposes a high-precision SMT device with laser alignment marks.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A high-precision patching device with laser alignment marking includes a support frame, on which a substrate carrier, a cross laser marker, a high-definition industrial camera, and a rectangular rod are fixedly mounted. A sliding seat is slidably connected to the rectangular rod. The sliding seat is connected to a fixed frame via an electric push rod. A first lead screw is rotatably connected to the fixed frame. A support rod is threadedly connected to the first lead screw. The support rod and the fixed frame are slidably connected.

[0007] The lower end of the support rod is bolted to a hollow shell. Air holes are provided on both sides of the hollow shell. Multiple suction cups are fixedly connected to the bottom of the hollow shell. A sealing plate is connected inside the hollow shell by a return spring. An electric cylinder is fixedly connected to one inner wall of the hollow shell. A sliding component is provided at the drive end of the electric cylinder.

[0008] Preferably, the sliding assembly includes a branch rod fixedly connected to the drive end of the electronically controlled cylinder, a cover plate and a moving block fixedly connected to the branch rod, a hollow iron shell slidably connected to the branch rod, an extrusion strip fixedly connected to the upper surface of the hollow iron shell, and a triangular opening for connecting the extrusion strip on the sealing plate.

[0009] Preferably, a plurality of first springs are fixedly connected to one inner wall of the hollow iron shell, each of the first springs being fixedly connected to the moving block, and an electromagnet is fixedly connected to one inner wall of the hollow shell.

[0010] Preferably, a first limiting strip and a second limiting strip are fixedly connected to one inner wall of the hollow iron shell, and the moving block is disposed between the first limiting strip and the second limiting strip.

[0011] Preferably, a second lead screw is rotatably connected to the support frame, and the sliding seat and the second lead screw are threadedly connected.

[0012] Preferably, servo motors are fixedly connected to both the support frame and the fixed frame. The drive ends of the two servo motors are fixedly connected to the first lead screw and the second lead screw, respectively. Each servo motor is equipped with an electromagnetic brake at its drive end.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] By combining a cross laser marker and a high-definition industrial camera, the positional deviation between electronic components and the substrate can be accurately captured and analyzed, achieving micron-level positional adjustment compensation. The precise design of mechanisms such as sliding components and lead screw drives, as well as the stable position maintenance by electromagnetic brakes, further ensure the accuracy of electronic component placement. This effectively solves the problem of inaccurate placement in traditional chip mounting devices, reduces the defect rate caused by positional deviations, and is beneficial to the use of chip mounting devices.

[0015] The coordinated operation of the sealing plate, electric cylinder, and sliding components inside the hollow shell can stably control the adsorption and release process of the suction cup, making the electronic components more stable during placement and avoiding component displacement or damage due to unstable release. The coordinated transmission of each servo motor and lead screw ensures smooth operation, and the electromagnetic brake can quickly brake when needed, ensuring the stability of each component during device operation and improving the overall operational stability. Attached Figure Description

[0016] Figure 1 This is a front structural diagram of a high-precision patch device with laser alignment marking proposed in this utility model;

[0017] Figure 2 This is a partial three-dimensional structural diagram of the hollow shell and suction cup of this utility model from the front.

[0018] Figure 3 This is a partial front view of the internal structure of the hollow shell and hollow iron shell in this utility model.

[0019] Figure 4This is a partial side view of the internal structure of the hollow shell in this utility model;

[0020] Figure 5 This is a schematic diagram of the internal structure of the hollow iron shell of this utility model from the front.

[0021] In the diagram: 1 Support frame, 2 Cross laser marker, 3 Electric push rod, 4 Sliding seat, 5 Second lead screw, 6 Rectangular rod, 7 Support rod, 8 Hollow shell, 9 Suction cup, 10 First lead screw, 11 High-definition industrial camera, 12 Sealing plate, 13 Branch rod, 14 Cover plate, 15 Triangular opening, 16 Extrusion strip, 17 First spring, 18 Hollow iron shell, 19 Air hole, 20 Electromagnet, 21 First limiting strip, 22 Second limiting strip, 23 Base plate support, 24 Moving block. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0023] The terms used in this utility model, such as "upper", "lower", "left", "right", "middle" and "one", are only for clarity of description and are not intended to limit the scope of implementation of this utility model. Changes or adjustments to their relative relationships, without substantially altering the technical content, should also be considered as within the scope of implementation of this utility model.

[0024] Reference Figures 1-5 A high-precision patch mounting device with laser alignment marking includes a support frame 1. A substrate carrier 23, a cross laser marker 2, a high-definition industrial camera 11, and a rectangular rod 6 are fixedly mounted on the support frame 1. The substrate carrier 23 is used to place the substrate to be patched. The cross laser marker 2 is used to emit laser alignment marks (the cross laser marker 2 is disclosed in CN205563072U, and its working principle is not described in detail). The high-definition industrial camera 11 is used to capture images of the marks, components, and substrate. A sliding seat 4 is slidably connected to the rectangular rod 6. 4. A fixed frame is connected to the electric push rod 3. A first lead screw 10 is rotatably connected to the fixed frame. A support rod 7 is threaded onto the first lead screw 10. The support rod 7 and the fixed frame are slidably connected. A hollow shell 8 is bolted to the lower end of the support rod 7. Air holes 19 are opened on both sides of the hollow shell 8. Multiple suction cups 9 are fixedly connected to the bottom of the hollow shell 8. The multiple suction cups 9 are used to adsorb electronic components. A sealing plate 12 is connected to the hollow shell 8 through a return spring. An electric control cylinder is fixedly connected to one inner wall of the hollow shell 8. A sliding component is provided at the drive end of the electric control cylinder.

[0025] refer to Figure 3The sliding assembly includes a branch rod 13 fixedly connected to the drive end of an electronically controlled cylinder. A cover plate 14 and a moving block 24 are fixedly connected to the branch rod 13. A hollow iron shell 18 is slidably connected to the branch rod 13. An extrusion strip 16 is fixedly connected to the upper surface of the hollow iron shell 18. A triangular opening 15 for connecting the extrusion strip 16 is provided on the sealing plate 12. A plurality of first springs 17 are fixedly connected to one inner wall of the hollow iron shell 18. Each first spring 17 is fixedly connected to the moving block 24. A plurality of first springs 17 are fixedly connected to one inner wall of the hollow shell 18. With electromagnet 20, the cover plate 14 will first seal and block the air hole 19 during the movement. Then, the extrusion strip 16 will slide against the inclined inner wall of the triangular opening 15 on the sealing plate 12, thereby driving the hollow shell 8 on the sealing plate 12 to move upward. The return spring will deform. The sealing plate 12 and the inner wall of the hollow shell 8 have good sealing performance. During the upward movement of the sealing plate 12, the electronic components can be firmly adsorbed by the suction cup 9 under the action of negative pressure. At this time, the electromagnet 20 is energized and is in close contact with the outer surface of the hollow iron shell 18.

[0026] refer to Figure 5 A first limiting strip 21 and a second limiting strip 22 are fixedly connected to one inner wall of the hollow iron shell 18. The moving block 24 is disposed between the first limiting strip 21 and the second limiting strip 22. The first limiting strip 21 and the second limiting strip 22 can limit the movement of the moving block 24.

[0027] refer to Figure 1 A second lead screw 5 is rotatably connected to the support frame 1. The sliding seat 4 is threadedly connected to the second lead screw 5. Servo motors are fixedly connected to both the support frame 1 and the fixed frame. The drive ends of the two servo motors are fixedly connected to the first lead screw 10 and the second lead screw 5, respectively. Each servo motor drive end is equipped with an electromagnetic brake. When the servo motor drives the second lead screw 5 to rotate, the sliding seat 4 can move along the second lead screw 5. Electromagnetic brakes are provided at the drive ends of the two servo motors to brake the rotation of the lead screw when needed to ensure positional stability.

[0028] In this invention, firstly, the cross laser marker 2 emits a laser to form laser alignment marks on the substrate to be mounted and the electronic components to be mounted. The high-definition industrial camera 11 captures images containing these laser alignment marks and transmits the image data to the image processing system. The image processing system extracts the actual coordinates of the marks through algorithms such as edge detection and template matching, and compares them with the preset ideal mounting position coordinates to calculate the deviation of the electronic components relative to the substrate in the plane. Based on the deviation, if the position of the sliding seat 4 needs to be adjusted, the servo motor mounted on the support frame 1 is driven to rotate, which in turn drives the second lead screw 5 to rotate. Since the sliding seat 4 is threadedly connected to the second lead screw 5, the sliding seat 4 slides along the rectangular rod 6 to adjust its position in the X-axis direction. If the position of the support rod 7 needs to be adjusted, the servo motor mounted on the fixed frame is driven to rotate, which in turn drives the first lead screw 10 to rotate, causing the support rod 7, which is threadedly connected to the first lead screw 10, to slide along the fixed frame to adjust its position in the Z-axis direction, so that the position of the electronic components gradually aligns with the ideal mounting position of the substrate.

[0029] Once the position is adjusted, the electrically controlled cylinder actuates, driving the branch rod 13 to move. The branch rod 13 then moves the cover plate 14, the moving block 24, and the hollow iron shell 18. During the movement of the cover plate 14, it first seals and blocks the air hole 19. Subsequently, the extrusion strip 16 slides against the inclined inner wall of the triangular opening 15 on the sealing plate 12, thereby causing the interior of the hollow shell 8 on the sealing plate 12 to move upward. Since the two ends of the return spring are fixedly connected to the upper inner wall of the sealing plate 12 and the hollow shell 8 respectively, the return spring deforms, and the sealing performance when the sealing plate 12 is connected to the inner wall of the hollow shell 8 is good. During the upward movement of the sealing plate 12, suction can be used under negative pressure. The suction cup 9 firmly adsorbs the electronic components. At this time, the electromagnet 20 is energized and is in close contact with the outer surface of the hollow iron shell 18. When it reaches the appropriate position, the electric cylinder drives the branch rod 13 to move in the opposite direction. Under the action of electromagnetic attraction, the hollow iron shell 18 is in close contact with the electromagnet 20, and the branch rod 13 will slide relative to the hollow iron shell 18. The first spring 17 deforms, and after the cover plate 14 moves, it will be misaligned with the air hole 19. The suction cup 9 releases the electronic components and places them smoothly and accurately in the designated position on the substrate. At the same time, during the whole process, the electromagnetic brake can brake the lead screw when the servo motor stops rotating to ensure the stability of the position of each component and ensure the mounting accuracy.

[0030] In this utility model, unless otherwise explicitly specified and limited, the terms "installation", "connection", "linking", "fixing", etc., should be interpreted broadly. For example, they can refer to fixed connection, detachable connection, or integral connection; they can refer to mechanical connection or electrical connection; they can refer to direct connection or indirect connection through an intermediate medium. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

[0031] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A high-precision patch mounting device with laser alignment marking, comprising a support frame (1), wherein a substrate carrier (23), a cross laser marker (2), a high-definition industrial camera (11), and a rectangular rod (6) are fixedly mounted on the support frame (1), characterized in that, A sliding seat (4) is slidably connected to the rectangular rod (6). The sliding seat (4) is connected to a fixed frame via an electric push rod (3). A first lead screw (10) is rotatably connected to the fixed frame. A support rod (7) is threadedly connected to the first lead screw (10). The support rod (7) and the fixed frame are slidably connected. The lower end of the support rod (7) is connected to a hollow shell (8) by bolts. Air holes (19) are provided on both sides of the hollow shell (8). Multiple suction cups (9) are fixedly connected to the bottom of the hollow shell (8). A sealing plate (12) is connected to the hollow shell (8) through a reset spring. An electric control cylinder is fixedly connected to one side of the inner wall of the hollow shell (8). A sliding component is provided at the drive end of the electric control cylinder.

2. The high-precision patching device with laser alignment marking according to claim 1, characterized in that, The sliding assembly includes a branch rod (13) fixedly connected to the drive end of the electronically controlled cylinder. A cover plate (14) and a moving block (24) are fixedly connected to the branch rod (13). A hollow iron shell (18) is slidably connected to the branch rod (13). An extrusion strip (16) is fixedly connected to the upper surface of the hollow iron shell (18). A triangular opening (15) for connecting the extrusion strip (16) is provided on the sealing plate (12).

3. A high-precision patch mounting device with laser alignment marking according to claim 2, characterized in that, A plurality of first springs (17) are fixedly connected to one inner wall of the hollow iron shell (18), and each first spring (17) is fixedly connected to the moving block (24). An electromagnet (20) is fixedly connected to one inner wall of the hollow shell (8).

4. A high-precision patch mounting device with laser alignment marking according to claim 2, characterized in that, The hollow iron shell (18) has a first limiting strip (21) and a second limiting strip (22) fixedly connected to one side inner wall, and the moving block (24) is disposed between the first limiting strip (21) and the second limiting strip (22).

5. A high-precision patch mounting device with laser alignment marking according to claim 1, characterized in that, The support frame (1) is rotatably connected to a second lead screw (5), and the sliding seat (4) and the second lead screw (5) are threadedly connected.

6. A high-precision patch mounting device with laser alignment marking according to claim 5, characterized in that, Servo motors are fixedly connected to both the support frame (1) and the fixed frame. The drive ends of the two servo motors are fixedly connected to the first lead screw (10) and the second lead screw (5) respectively. Each servo motor is equipped with an electromagnetic brake at its drive end.

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