Feeding correction device and chip mounter

Abstract

The application provides a feeding correction device and a chip mounter. The feeding correction device comprises a mounting seat, a carrier body for supporting and fixing products, a power driving assembly installed on the mounting seat and connected with the carrier body, and a feeding correction seat installed on the mounting seat. Two correction units are installed on the feeding correction seat and used for correcting the products on the carrier body when the power driving assembly drives the carrier body to pass through. The carrier body is installed on the power driving assembly, and the power driving assembly can drive the carrier body to realize reciprocating movement. Two correction units are installed on the feeding correction seat, and a channel formed between the two correction units can be used for the carrier body to pass through. When the power driving assembly drives the carrier body to pass through the channel, the two correction units located on both sides of the products can correct the products, so that the position error of the products fixed on the carrier body can be reduced, and the patching precision of the products can be improved.

Description

Technical Field

[0001] This application belongs to the field of surface mount technology, and more specifically, relates to a feeding and calibration device and a surface mount machine using the feeding and calibration device. Background Technology

[0002] During the placement process, the pick-and-place machine typically loads the product onto the carrier assembly via the loading nozzle in the loading component. Subsequently, the carrier assembly moves the product to a position close to the placement position, where the placement nozzle picks up the product from the carrier assembly and places it onto the circuit board.

[0003] Because the feeding nozzle may deviate during its reciprocating movement, the position of the product on the carrier assembly may be incorrect, resulting in poor placement accuracy between the product and the circuit board. Summary of the Invention

[0004] The purpose of this application is to provide a feeding correction device and a pick-and-place machine to solve the problem in the related art where there is an error in the position of the product being fed onto the carrier assembly, which leads to poor placement accuracy between the product and the circuit board.

[0005] To achieve the above objectives, the technical solution adopted in the embodiments of this application is as follows:

[0006] On the one hand, a feeding correction device is provided, comprising:

[0007] Mounting base;

[0008] The carrier body is used to support and fix the product;

[0009] A power drive assembly is mounted on the mounting base and connected to the vehicle body for driving the vehicle body to move.

[0010] A feeding and calibration seat is installed on the mounting base;

[0011] Two calibration units are installed on the loading calibration seat, with a channel formed between the two calibration units. The two calibration units are used to calibrate the product on the carrier body when the power drive assembly drives the carrier body through the channel.

[0012] In this structure, the carrier body is mounted on a power drive assembly, which drives the carrier body to reciprocate. Two calibration units are installed on the loading calibration seat, forming a channel through which the carrier body can pass. When the power drive assembly drives the carrier body through the channel, the two calibration units located on either side of the product can calibrate the product, thereby reducing the positional error of the product fixed to the carrier body and improving the product's placement accuracy.

[0013] On the other hand, a chip mounter is provided, including the feeding and calibration device provided in any of the above embodiments.

[0014] With this structure, the pick-and-place machine using this feeding and correction device can correct the products on the carrier body, which helps to improve the subsequent placement accuracy of the products. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this application, the drawings used in the description of the embodiments or exemplary technologies will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a three-dimensional structural diagram of the feeding and correction device provided in the embodiments of this application;

[0017] Figure 2 This is a three-dimensional structural diagram of the vehicle body provided in the embodiments of this application;

[0018] Figure 3 A partially exploded view showing the connection between the feeding calibration seat and the two calibration units provided in an embodiment of this application;

[0019] Figure 4 This is a three-dimensional structural schematic diagram of the correction unit provided in the embodiments of this application;

[0020] Figure 5 This is a three-dimensional structural diagram of the placement machine provided in the embodiments of this application;

[0021] Figure 6 A schematic diagram of the three-dimensional structure at the material loading position provided in the embodiments of this application. Figure 1 ;

[0022] Figure 7 This is a partial cross-sectional schematic diagram of a linear vibration track provided in an embodiment of this application;

[0023] Figure 8 A cross-sectional schematic diagram of the rail-front blowing assembly provided in an embodiment of this application;

[0024] Figure 9 This is a partially exploded view of the material transfer assembly provided in an embodiment of this application;

[0025] Figure 10 A schematic diagram of the three-dimensional structure at the material loading position provided in the embodiments of this application. Figure 2 ;

[0026] Figure 11 A three-dimensional structural schematic diagram of the feeding assembly provided in the embodiments of this application;

[0027] Figure 12 This is a three-dimensional structural diagram of the patch assembly provided in the embodiments of this application;

[0028] Figure 13 This is a three-dimensional structural diagram of the guide seat provided in an embodiment of this application;

[0029] Figure 14 for Figure 13 A schematic diagram of the cross-section along the AA direction;

[0030] Figure 15 This is an enlarged schematic diagram of the guide seat at point B according to one embodiment of this application;

[0031] Figure 16 An enlarged schematic diagram of the guide seat at point B provided in another embodiment of this application;

[0032] Figure 17 This is a three-dimensional structural diagram of the chip mounting and unloading assembly provided in an embodiment of this application.

[0033] The main markings in the attached figures are as follows:

[0034] 10. Mounting base;

[0035] 20. Vehicle body; 201. Vehicle base; 202. Vehicle support base; 203. Receiving slot; 204. Adsorption hole;

[0036] 30. Power drive components;

[0037] 40. Feeding and alignment seat; 401. Limiting baffle; 402. First adjusting seat; 403. Second adjusting seat; 404. Third adjusting seat; 405. Horizontal movement control unit; 406. Vertical movement control unit; 407. Lifting control unit; 408. Waist-shaped hole; 409. Fastener;

[0038] 50. Correction unit; 501. Rotating seat; 5011. Internal threaded hole; 5012. Threaded hole; 5013. Rotating shaft; 502. Correction wheel; 503. Correction elastic element; 504. Angle adjustment unit; 5041. Adjusting screw; 505. Locking element;

[0039] 60. Vehicle imaging unit;

[0040] 1. Feeding assembly; 11. Storage hopper; 12. Vibratory feeder; 121. Straight vibrating track; 13. Front air nozzle; 14. Rear suction nozzle; 15. Lower suction nozzle;

[0041] 2. Track-front imaging component; 21. Detection unit; 22. Camera unit;

[0042] 3. Rail-front blowing assembly; 31. Waste box; 32. First blowing seat; 321. First blowing channel; 33. First blowing nozzle; 34. Second blowing seat; 341. Second blowing channel; 35. Second blowing nozzle;

[0043] 5. Rail front alignment assembly; 51. Rail front alignment seat; 511. Rail front alignment hole;

[0044] 6. Transfer assembly; 61. Transfer base; 62. Transfer nozzle; 63. Transfer swing base; 64. Transfer drive unit; 641. Transfer rotating wheel; 642. Transfer belt; 643. Transfer motor; 644. Transfer eccentric wheel; 65. Transfer rotary motor; 66. Transfer base;

[0045] 7. Feeding assembly; 71. Feeding base; 72. Feeding sliding seat; 721. Feeding sliding base; 722. Feeding side seat; 723. Feeding wheel; 724. Feeding belt; 725. Feeding motor; 726. Upper feeding clamp; 727. Lower feeding clamp; 728. Feeding clamping cylinder; 729. Feeding stop seat; 720. Feeding stop cylinder; 73. Feeding power unit; 74. Feeding correction seat; 75. Feeding correction cylinder;

[0046] 8. Surface Mount Assembly; 81. Surface Mount Holder; 82. Surface Mount Slider; 821. Surface Mount Slider Plate; 822. Surface Mount Positioner; 823. Positioning Guide Rod; 83. Surface Mount Nozzle; 84. Surface Mount Power Unit; 85. Guide Seat; 850. Positioning Hole; 851. Guide Hole; 852. First Guide Face; 8521. Guide Surface; 8522. Clearance Surface; 8523. Stepped Section; 8524. First Correction Surface; 8525. Second Correction Surface; 853. Second Guide Face; 8531. First Guide Surface; 8532. Second Guide Surface; 8533. Third Guide Surface; 86. Detector; 87. Surface Mount Lateral Movement Unit;

[0047] 9. Surface mount feeding assembly; 91. Surface mount feeding side seat; 92. Surface mount feeding roller; 93. Surface mount feeding belt; 94. Surface mount feeding motor. Detailed Implementation

[0048] The terms "first," "second," and "third" 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 indicated. Therefore, a feature defined as "first," "second," or "third" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means two or more, unless otherwise expressly specified. "Several" means one or more, unless otherwise expressly specified.

[0049] In the description of this application, it should be understood that the terms "center", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application 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. Therefore, they should not be construed as limitations on this application.

[0050] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0051] For ease of description, we define three mutually perpendicular coordinate axes in space as the X-axis, Y-axis, and Z-axis. The direction along the X-axis is vertical, the direction along the Y-axis is horizontal, and the direction along the Z-axis is vertical. The X-axis and Y-axis are two mutually perpendicular coordinate axes on the same horizontal plane, and the Z-axis is the vertical coordinate axis. The X-axis, Y-axis, and Z-axis lie on three mutually perpendicular planes in space: the XY-plane, the YZ-plane, and the XZ-plane. The XY-plane is horizontal, and the XZ-plane and YZ-plane are both vertical, with the XZ-plane perpendicular to the YZ-plane. Movement along these three axes in space refers to movement along the three mutually perpendicular axes in space, specifically movement along the X, Y, and Z axes. Planar movement, on the other hand, refers to movement within the XY-plane.

[0052] Please see Figure 1 and Figure 3The feeding and calibration device provided in this application embodiment will now be described. The feeding and calibration device includes a mounting base 10, a carrier body 20, a power drive assembly 30, a feeding and calibration seat 40, and two calibration units 50. The power drive assembly 30 can be mounted on the mounting base 10. Optionally, the power drive assembly 30 can be a cylinder transmission mechanism, a screw transmission mechanism, a linear motor, etc.; in this application, a screw transmission mechanism can be used. The power drive assembly 30 can be connected to the carrier body 20, thereby driving the carrier body 20 to reciprocate. The product delivered from the feeding displacement can be supported and fixed by the carrier body 20. The two calibration units 50 can be mounted on the feeding and calibration seat 40, which can be mounted on the mounting base 10. A channel is formed between the two calibration units 50; when the carrier body 20 passes through this channel, the two calibration units 50 can calibrate the product on the carrier body 20.

[0053] In this structure, the carrier body 20 is mounted on the power drive assembly 30, which drives the carrier body 20 to reciprocate. Two calibration units 50 are installed on the loading calibration seat 40, forming a channel through which the carrier body 20 passes. When the power drive assembly 30 drives the carrier body 20 through the channel, the two calibration units 50 located on both sides of the product can calibrate the product, thereby reducing the positional error of the product fixed on the carrier body 20 and helping to improve the product's mounting accuracy.

[0054] In one embodiment, see Figure 3 and Figure 4 As a specific embodiment of the feeding correction device provided in this application, the correction unit 50 includes a rotating seat 501, a correction wheel 502, and a correction elastic element 503. The rotating seat 501 is hinged to the feeding correction seat 40 at its center. Optionally, a rotating shaft 5013 is fixedly mounted on the center of the rotating seat 501, and the rotating shaft 5013 is rotatably mounted on the feeding correction seat 40. The correction wheel 502 is rotatably mounted on one end of the rotating seat 501, and the correction elastic element 503 is mounted on the other end of the rotating seat 501. One end of the correction elastic element 503 abuts against the rotating seat 501, and the other end of the correction elastic element 503 abuts against the feeding correction seat 40. The correction elastic element 503 can be a spring. With this structure, when the carrier body 20 extends into the channel, the two correction wheels 502 can respectively correct the product; the two correction elastic elements 503 can respectively elastically push against the two rotating seats 501, so that the two correction wheels 502 are always kept in the correction position for the product. Furthermore, the product is calibrated by the calibration wheel 502. The product and the calibration wheel 502 are subjected to rolling friction, which results in low friction and prevents the product from being scratched.

[0055] In one embodiment, see Figure 3 and Figure 4 In one specific embodiment of the feeding correction device provided in this application, the hinge point is the joint between the rotating seat 501 and the feeding correction seat 40. The straight-line distance between the correction wheel 502 and the hinge point is less than the straight-line distance between the correction elastic member 503 and the hinge point. In this structure, the rotation of the rotating seat 501 forms a lever structure. When the position of the product on the carrier body 20 is deviated and cannot be corrected by the correction wheel 502, the correction elastic member 503 is compressed to achieve buffer protection for the product.

[0056] In one embodiment, see Figure 4 As a specific embodiment of the feeding correction device provided in this application, the correction unit 50 further includes an angle adjustment unit 504 mounted on the rotating seat 501. In this structure, the angle adjustment unit 504 can adjust and control the rotation angle of the rotating seat 501.

[0057] In one embodiment, see Figure 4 As a specific embodiment of the feeding correction device provided in this application, the rotating seat 501 has an internal threaded hole 5011; the angle adjustment unit 504 includes an adjusting screw 5041 installed in the internal threaded hole 5011, and one end of the adjusting screw 5041 extending out of the internal threaded hole 5011 abuts against the feeding correction seat 40. Optionally, the adjusting screw 5041 can be a screw, bolt, screw, etc. With this structure, by adjusting the length of the screw 5041 screwed into and out of the rotating seat 501, the rotation angle of the rotating seat 501 can be controlled, thereby adjusting the width of the channel to accommodate products of different sizes.

[0058] In one embodiment, see Figure 4 Angle adjustment unit 504 can be located between the correction wheel 502 and the hinge point. In this structure, by placing the angle adjustment unit 504 close to the correction wheel 502, the initial position of the rotating seat 501 can be adjusted through the angle adjustment unit 504, thereby adjusting the width of the channel formed between the two correction wheels 502, making the adjustment more convenient and faster.

[0059] In some embodiments, the angle adjustment unit 504 may also be an elastic body connecting the feeding correction seat 40 and the rotating seat 501. This elastic body may be a spring, a rubber strip with elastic deformation capability, etc. The rotation angle of the rotating seat 501 can be limited by the elastic body. In other embodiments, the angle adjustment unit 504 may also be an elastic body connecting two rotating seats 501. This elastic body may be a spring, a rubber strip with elastic deformation capability, etc. The rotation angle of the two rotating seats 501 can be limited by the correction elastic element 503. Of course, in other embodiments, the structure of the angle adjustment unit 504 can also be adjusted according to actual needs, and is not limited here.

[0060] In one embodiment, see Figure 4 As a specific embodiment of the feeding correction device provided in this application, the rotating seat 501 has a threaded hole 5012 communicating with the internal threaded hole 5011; the correction unit 50 also includes a locking member 505 installed in the threaded hole 5012, which abuts against the adjusting screw 5041. Optionally, the inner circumferential surface of the threaded hole 5012 is provided with an internal thread, and the locking member 505 can be threadedly connected to the threaded hole 5012. The locking member 505 can be a screw, bolt, screw, etc. In this structure, the adjusting screw 5041 can be fixed by the abutment between the locking member 505 and the adjusting screw 5041, preventing the adjusting screw 5041 from shifting position during the rotation of the rotating seat 501.

[0061] In some embodiments, the two correction units 50 may also be finger cylinders. In other embodiments, the correction unit 50 may also be a cylinder mounted on the loading correction seat 40 and a guide plate connected to the cylinder, with a channel formed between the two guide plates for the carrier body 20 to pass through. By driving the two guide plates closer to the carrier body 20 with the two cylinders, the product on the carrier body 20 can be guided.

[0062] In one embodiment, see Figure 3 As a specific embodiment of the feeding correction device provided in this application, a limiting baffle 401 is installed on the feeding correction seat 40, and two correction units 50 are respectively disposed on both sides of the limiting baffle 401. Optionally, the end of the correction elastic member 503 away from the rotating seat 501 abuts against the limiting baffle 401, and the end of the adjusting screw 5041 away from the rotating seat 501 abuts against the limiting baffle 401. With this structure, the limiting baffle 401 can block the two rotating seats 501, avoiding interference between the two correction units 50.

[0063] In one embodiment, see Figure 3As a specific embodiment of the feeding correction device provided in this application, the feeding correction seat 40 includes a first adjusting seat 402, a second adjusting seat 403, a third adjusting seat 404, a transverse movement control unit 405, a longitudinal movement control unit 406, and a lifting control unit 407. Two correction units 50 can be mounted on the first adjusting seat 402; the first adjusting seat 402 is slidably mounted on the second adjusting seat 403, the transverse movement control unit 405 is mounted on the second adjusting seat 403, and the transverse movement control unit 405 can be connected to the first adjusting seat 402; the second adjusting seat 403 is slidably mounted on the third adjusting seat 404, the longitudinal movement control unit 406 is mounted on the third adjusting seat 404, and the longitudinal movement control unit 406 can be connected to the second adjusting seat 403; the third adjusting seat 404 is slidably mounted on the mounting base 10, the lifting control unit 407 is mounted on the mounting base 10, and the lifting control unit 407 is connected to the third adjusting seat 404. This structure allows the first adjusting seat 402 and the two correction units 50 to move laterally (X-axis direction in the figure) via the horizontal movement control unit 405; the second adjusting seat 403, the first adjusting seat 402 and the two correction units 50 to move longitudinally (Y-axis direction in the figure) via the vertical movement control unit 406; and the third adjusting seat 404, the second adjusting seat 403, the first adjusting seat 402 and the two correction units 50 to move up and down (Z-axis direction in the figure) via the lifting control unit 407. In this way, the positions of the two correction units 50 can be adjusted in the XYZ axis directions.

[0064] In one embodiment, see Figure 3 The transverse control unit 405, longitudinal control unit 406, and lifting control unit 407 can be eccentric screws, cylinder drive structures, fine-tuning knob structures, etc. In this application, the transverse control unit 405, longitudinal control unit 406, and lifting control unit 407 can be eccentric screws.

[0065] In one embodiment, see Figure 3 To limit and fix the eccentric screw, the first adjusting seat 402, the second adjusting seat 403, and the third adjusting seat 404 are each provided with a slotted hole 408, into which a fastener 409 can be installed. Through the cooperation of the fastener 409 and the slotted hole 408, the first adjusting seat 402 and the second adjusting seat 403 can be connected, and the second adjusting seat 403 and the third adjusting seat 404 can be connected to the mounting base 10. The fastener 409 can be a screw, bolt, etc.

[0066] In one embodiment, see Figure 2As a specific embodiment of the feeding and correction device provided in this application, the carrier body 20 includes a carrier base 201 and a carrier support 202. The carrier base 201 can be installed on the power drive assembly 30, and the carrier support 202 is installed on the carrier base 201. A receiving groove 203 can be opened on the carrier support 202, and an adsorption hole 204 is opened on the inner side wall of the receiving groove 203. The adsorption hole 204 can be connected to a negative pressure device. With this structure, the receiving groove 203 can realize the positioning of the product; the adsorption hole 204 can realize the adsorption and fixation of the product; and the carrier support 202 can pass through the channel formed by the two correction units 50, which facilitates the correction of the product by the two correction units 50.

[0067] In one embodiment, see Figure 2 The carrier support 202 is arranged along the length of the carrier base 201. Multiple receiving slots 203 are spaced apart on the carrier support 202, and each receiving slot 203 has an adsorption hole 204 on its bottom surface. With this structure, the carrier body 20 can support and fix multiple products at once, and, in conjunction with two calibration units 50, can calibrate multiple products simultaneously, thereby improving calibration efficiency.

[0068] This application also provides a pick-and-place machine, including the feeding and calibration device provided in any of the above embodiments. With this structure, the pick-and-place machine using this feeding and calibration device can calibrate the products on the carrier body 20, which helps to improve the subsequent placement accuracy of the products.

[0069] Please see Figure 5 The pick-and-place machine includes a loading assembly 1, a rail-front imaging assembly 2, a rail-front blowing assembly 3, a loading correction device, a rail-front correction assembly 5, a transfer assembly 6, a feeding assembly 7, a placement assembly 8, and a placement unloading assembly 9. It may also include a frame, on which the loading assembly 1, rail-front imaging assembly 2, rail-front blowing assembly 3, loading correction device, rail-front correction assembly 5, transfer assembly 6, feeding assembly 7, placement assembly 8, and placement unloading assembly 9 can be respectively mounted. A main control system may be installed in the frame. The loading assembly 1, rail-front imaging assembly 2, rail-front blowing assembly 3, loading correction device, transfer assembly 6, feeding assembly 7, placement assembly 8, and placement unloading assembly 9 can be electrically connected to the main control system, which can provide necessary signal control, etc.

[0070] The feeding assembly 1 is used to supply products to the feeding position. Optionally, please refer to... Figure 5 and Figure 7The feeding assembly 1 may include a storage hopper 11 and a vibratory feeder 12 connected to the storage hopper 11. The vibratory feeder 12 has a linear vibrating track 121, with the end of the linear vibrating track 121 away from the storage hopper 11 serving as the feeding position. A front air nozzle 13 may be installed on the linear vibrating track 121, positioned above the linear vibrating track 121, to accelerate the product to the feeding position and improve the product feeding efficiency. A rear suction nozzle 14 and a lower suction nozzle 15 may be installed on the linear vibrating track 121 at the feeding position. The rear suction nozzle 14 is in a constant suction state, and the lower suction nozzle 15 is controlled to open and close by a solenoid valve. When the product arrives at the feeding position, the rear suction nozzle 14 and the lower suction nozzle 15 open to adsorb and fix the product. When the transfer assembly 6 picks up the product at the feeding position, the lower suction nozzle 15 closes, facilitating the transfer assembly 6 to remove the product from the feeding position. This can improve the operating speed of the pick-and-place machine, reduce downtime, and increase production efficiency.

[0071] Optionally, two positive pressure control valves, respectively connected to the rear suction nozzle 14 and the lower suction nozzle 15, can be installed on the frame. If impurities carried by the product enter the channel, the two positive pressure control valves can blow air into the rear suction nozzle 14 and the lower suction nozzle 15 respectively to discharge the impurities from the channel. The rear suction nozzle 14 and the lower suction nozzle 15 can blow air simultaneously; or, the rear suction nozzle 14 blows air while the lower suction nozzle 15 does not; or, the rear suction nozzle 14 does not blow air while the lower suction nozzle 15 blows air.

[0072] Please see Figure 5 The front-rail imaging component 2 is located on one side of the loading position to acquire image information of the product at the loading position. The front-rail blowing component 3 is located on the other side of the loading position to reject defective products. The loading correction device is set opposite to the loading position to support and fix the product and to correct it. The front-rail correction component 5 can be located above the carrier body 20 to correct the product. The transfer component 6 can be located between the loading component 1 and the loading correction device to transfer qualified products to the front-rail correction component 5 for correction, and then transfer the corrected products to the carrier body 20. The feeding component 7 can be located beside the loading correction device to supply the parts to be mounted to the mounting position. Here, the parts to be mounted can be PCB boards. The mounting component 8 can be located at the mounting position to pick up the products on the carrier body 20 and mount the products onto the parts to be mounted. The chip feeding assembly 9 can be connected to the feeding assembly 7 to receive the chip after it has been mounted, so as to move the chip to the next station.

[0073] In one embodiment, see Figure 6The pick-and-place machine also includes a detection unit 21, and the track-front imaging component 2 includes a camera unit 22. The detection unit 21 can be installed on the loading component 1, and is located between the camera unit 22 and the loading position. With this structure, the detection unit 21 can detect whether there is a product at the loading position; the camera unit 22 can acquire the appearance quality, position, and orientation of the product, so as to determine the polarity of the product.

[0074] In one embodiment, the detection unit 21 may be a through-beam optical fiber, which may be tilted to allow the camera unit 22 to pass. Alternatively, the detection unit 21 may be a position detector, an infrared monitor, or the like. The camera unit 22 may include a structure consisting of a camera, a light source, and a reflector.

[0075] In one embodiment, see Figure 6 and Figure 8 The rail-front blowing assembly 3 includes a waste box 31, a first blowing seat 32, and a first blowing nozzle 33. The first blowing seat 32 has a first blowing channel 321 communicating with the waste box 31; the first blowing nozzle 33 is mounted on the first blowing seat 32. With this structure, when the rail-front imaging assembly 2 detects a defective product, the material transfer assembly 6, during the process of picking up the defective product, can use the first blowing nozzle 33 to blow the defective product into the first blowing channel 321, and then store it in the waste box 31 along the first blowing channel 321.

[0076] In one embodiment, see Figure 6 and Figure 8 The front-rail blowing assembly 3 also includes a second blowing seat 34 and a second blowing nozzle 35. The second blowing seat 34 is connected to the first blowing seat 32, and the two are spaced apart. The second blowing seat 34 has a second blowing channel 341 that communicates with the waste box 31. The second blowing nozzle 35 is mounted on the second blowing seat 34. With this structure, defective products on the carrier body 20 can be blown into the second blowing channel 341 via the second blowing seat 34 and stored in the waste box 31 along the second blowing channel 341.

[0077] In one embodiment, see Figure 9 The material transfer assembly 6 includes a material transfer base 61, a material transfer nozzle 62, a material transfer swing base 63, and a material transfer drive unit 64. The material transfer nozzle 62 can be mounted on the material transfer swing base 63, which can be connected to the material transfer drive unit 64. The material transfer drive unit 64 can be mounted on the material transfer base 61. In this structure, the material transfer drive unit 64 can drive the material transfer swing base 63 to swing, causing the material transfer nozzle 62 to reciprocate between the loading position and the carrier body 20, thereby transferring the product from the loading position to the carrier body 20.

[0078] In one embodiment, see Figure 9 The material transfer drive unit 64 may include two material transfer rotating wheels 641 rotatably mounted on the material transfer base 61, a material transfer belt 642 connecting the two material transfer rotating wheels 641, a material transfer motor 643 mounted on the material transfer base 61 and connected to one of the material transfer rotating wheels 641, and a material transfer eccentric wheel 644 mounted on each material transfer rotating wheel 641. The material transfer swing base 63 is connected to the two material transfer eccentric wheels 644. In this structure, the material transfer motor 643 drives the two material transfer eccentric wheels 644 to rotate, which can realize the arc-shaped swing of the material transfer swing base 63. When the material transfer swing base 63 swings to one side, the material transfer suction nozzle 62 can pick up the product at the loading position; when the material transfer swing base 63 swings to the other side, the material transfer suction nozzle 62 can move the product onto the carrier body 20.

[0079] In one embodiment, see Figure 9 The transfer assembly 6 may also include a transfer rotary motor 65 mounted on the transfer swing base 63, which can be connected to the transfer nozzle 62. In this structure, the transfer rotary motor 65 can drive the transfer nozzle 62 to rotate, thereby adjusting the orientation of the product.

[0080] In one embodiment, see Figure 9 The transfer assembly 6 also includes a transfer base 66 through which the transfer nozzle 62 passes and a sealing ring (not shown) that fills the gap between the inner wall of the transfer base 66 and the transfer nozzle 62. The transfer base 66 is mounted on the transfer swing seat 63. This structure, through the sealing ring, achieves a sealing effect, preventing gas leakage and thus improving the adsorption effect of the transfer nozzle 62 on the product.

[0081] In some embodiments, the material transfer assembly 6 may also be a structure formed by combining the material transfer nozzle 62 with one or more of the X-axis material transfer unit, Y-axis material transfer unit and Z-axis material transfer unit, wherein the X-axis material transfer unit, Y-axis material transfer unit and Z-axis material transfer unit may be a cylinder transmission mechanism, a lead screw transmission mechanism, a linear motor of a slide table, etc.

[0082] In one embodiment, see Figure 10 The rail pre-alignment assembly 5 includes a rail pre-alignment seat 51 mounted on the rail pre-blow assembly 3, positioned above the carrier body 20. The rail pre-alignment seat 51 has a rail pre-alignment hole 511 for the transfer nozzle 62 and the product to pass through. With this structure, when the transfer assembly 6 moves the product from the loading position to the carrier body 20, the transfer nozzle 62 and the product it adsorbs can pass through the rail pre-alignment hole 511, thereby correcting the product on the transfer nozzle 62 and improving the accuracy of product loading onto the carrier body 20.

[0083] In some embodiments, the rail-front alignment assembly 5 may be an alignment base, multiple alignment seats mounted on the alignment base, and a rail-front alignment power unit that drives the multiple alignment seats to move closer or further apart. The product can be aligned by pushing against the multiple alignment seats. The rail-front alignment power unit may be an alignment cylinder, an alignment motor, or a combination of gears.

[0084] In one embodiment, see Figure 10 The loading and correction device also includes a carrier imaging unit 60 mounted on the mounting base 10. In this configuration, the carrier imaging unit 60 can acquire image information of the product on the carrier body 20 to re-evaluate the product's appearance. If the product has defects, the second blow nozzle 35 blows the product at that location into the waste box 31. Subsequently, the power drive assembly 30 reverses the drive of the carrier body 20 back to the loading position for reloading. This process is repeated until the product carried on the carrier body 20 is free of defects. Optionally, the carrier imaging unit 60 may include a combination structure formed by a camera, a light source, a reflector, etc.

[0085] In one embodiment, see Figure 11 The feeding assembly 7 includes a feeding base 71, a feeding slide 72, and a feeding power unit 73. The feeding base 71 can be mounted on the frame; the feeding slide 72 can be slidably mounted on the feeding base 71 via a guide rail pair; the feeding power unit 73 can be mounted on the feeding base 71 and connected to the feeding slide 72. In this structure, the feeding slide 72 provides support and fixation for the workpiece to be placed; the feeding power unit 73 drives the feeding slide 72 to slide on the feeding base 71, moving the workpiece to be placed to the placement position for placement. Optionally, the feeding power unit 73 can be a screw drive mechanism. Of course, the feeding power unit 73 can also be a cylinder drive mechanism, a linear motor, etc.

[0086] In one embodiment, see Figure 11 The feed slide seat 72 includes a feed slide base 721 slidably mounted on a feed base 71, feed side seats 722 mounted at both ends of the feed slide base 721, two feed wheels 723 rotatably mounted at both ends of the feed side seats 722, a feed belt 724 connecting the two feed wheels 723, and a feed motor 725 mounted on the feed side seats 722 and connected to one of the feed wheels 723. This structure allows the two feed belts 724 to support the workpiece to be mounted; the two feed motors 725 drive the corresponding feed wheels 723 to rotate, which in turn drives the two feed belts 724 to rotate, thereby enabling the movement of the workpiece to be mounted.

[0087] In one embodiment, see Figure 11The feed slide seat 72 also includes a feed calibration seat 74 slidably mounted on the feed side seat 722 and a feed calibration cylinder 75 mounted on the feed side seat 722 and connected to the feed calibration seat 74. In this structure, the feed calibration cylinder 75 can drive the feed calibration seat 74 to reciprocate on the feed side seat 722, and the feed calibration seat 74 can push against the component to be mounted to correct its position, thereby improving the mounting accuracy with the product.

[0088] In one embodiment, see Figure 11 Each feed side seat 722 has a feed upper clamping plate 726 mounted on its top, and a feed lower clamping plate 727 and a feed clamping cylinder 728 connected to the feed lower clamping plate 727 are slidably mounted on each feed side seat 722. The component to be mounted can be placed between the feed upper clamping plate 726 and the feed lower clamping plate 727. In this structure, the feed lower clamping plate 727 can be moved closer to or further away from the feed upper clamping plate 726 by the feed clamping cylinder 728 driving it to slide on the feed side seat 722. The cooperation between the feed lower clamping plate 727 and the feed upper clamping plate 726 can clamp and fix the component to be mounted, preventing positional displacement of the product when it is mounted on the component.

[0089] In one embodiment, see Figure 5 The pick-and-place machine may further include a placement feeding unit (not shown) for supplying components to be placed onto the feeding assembly 7. The feeding assembly 7 may be located between the placement feeding unit and the placement unloading assembly 9. Optionally, the placement feeding unit may include a placement feeding seat mounted on the frame, placement feeding side seats mounted at both ends of the placement feeding seat, placement feeding rollers mounted at both ends of each placement feeding side seat, a placement feeding belt connecting two corresponding placement feeding rollers, and a placement feeding motor mounted on the placement feeding side seat and connected to one placement feeding roller. In this structure, the two placement feeding belts can support the components to be placed; by driving the two placement feeding belts to rotate by the two placement feeding motors respectively, the components to be placed can be transferred to the feeding assembly 7, and specifically transferred to the two feeding belts 724.

[0090] In one embodiment, see Figure 11 The feed slide seat 72 may further include a feed stop seat 729 slidably mounted on the feed slide base 721 and a feed stop cylinder 720 connected to the feed stop seat 729; the feed stop seat 729 may be located at one end of the feed slide seat 72 near the patch loading unit. In this structure, the feed stop cylinder 720 can drive the feed stop seat 729 to rise and fall, and the feed stop seat 729 can stop the patch to be loaded from the patch loading unit, preventing patch disorder caused by repeated loading of the patch.

[0091] In one embodiment, see Figure 12The patch assembly 8 includes a patch holder 81, a patch slide 82, a patch nozzle 83, and a patch power unit 84. The patch slide 82 is slidably mounted on the patch holder 81 along a first direction. The patch nozzle 83 is mounted on the patch slide 82 along a second direction, parallel to the first direction; both the first and second directions can be vertical. The patch power unit 84 is mounted on the patch holder 81 and connected to the patch slide 82. This structure allows the patch nozzle 83 to pick up products from the carrier body 20; the patch power unit 84 drives the patch slide 82 to move on the patch holder 81, thus applying the product from the patch nozzle 83 to the part to be patched. Optionally, the patch power unit 84 can be a screw drive mechanism to drive the patch slide 82 and the patch nozzle 83 to move up and down. Alternatively, the patch power unit 84 can also be a cylinder drive mechanism, a linear motor, etc.

[0092] In one embodiment, see Figures 12 to 14 The placement assembly 8 may further include a guide seat 85 mounted on the placement base 81, which may be located below the placement slide base 82. The guide seat 85 has a guide hole 851 for the placement nozzle 83 and the product to pass through. With this structure, when the placement nozzle 83 passes through the guide hole 851, the guide hole 851 can guide the product to move and be aligned, thereby improving the placement accuracy between the product and the component to be placed.

[0093] In one embodiment, see Figures 12 to 14 The number of placement nozzles 83 can be multiple, and these nozzles 83 can be installed in a row on the placement slide base 82. Correspondingly, the number of guiding holes 851 can also be multiple, and these guiding holes 851 can be arranged in a row on the guide base 85. The number of guiding holes 851 can be consistent with the number of placement nozzles 83. With this structure, the multiple guiding holes 851 can guide the movement and alignment of multiple products at one time, and can realize the placement of multiple products at one time, which helps to improve alignment efficiency and placement efficiency.

[0094] In one embodiment, see Figure 15 The inner wall of the guide hole 851 is provided with a first guide surface 852 and a second guide surface 853. With this structure, the first guide surface 852 can guide one end of the product to move and be guided, and the second guide surface 853 can guide the other end of the product to move and be guided, thereby realizing two-way guidance of the product and improving the guidance accuracy of the product.

[0095] Optionally, during the process of the patch nozzle 83 with the product adsorbed passing through the guide hole 851, the product can be guided to move and be aligned once by the first guide front 852; and then the product can be guided to move and be aligned a second time by the second guide front 853.

[0096] In one embodiment, see Figure 13The guide hole 851 may have four inner sidewalls, of which two adjacent inner sidewalls may be the first guide face 852, and the other two adjacent inner sidewalls may be the second guide face 853. The product may have a roughly square structure, such as a cuboid or cube, and has four outer sidewalls. The two adjacent first guide facewalls 852 may cooperate with the two corresponding adjacent outer sidewalls of the product to abut and guide the product's primary movement and alignment; the two adjacent second guide facewalls 853 may cooperate with the other two corresponding adjacent outer sidewalls of the product to guide the product's secondary movement and alignment.

[0097] In one embodiment, see Figure 15 The first guide surface 852 includes a guide surface 8521 and a clearance surface 8522. The clearance surface 8522 is connected to the guide surface 8521, and a step portion 8523 is formed at the connection position between the clearance surface 8522 and the guide surface 8521. The first guide surface 852 can be located above the clearance surface 8522. In this structure, the guide surface 8521 can guide one end of the product to move and be aligned; the portion of the second guide surface 853 facing the clearance surface 8522 can guide the other end of the product to move and be aligned. During the alignment process, the step portion 8523 can avoid the product.

[0098] In one embodiment, see Figure 15 The guide surface 8521 and the second guide surface 853 can be inclined surfaces, and the clearance surface 8522 can be a vertical plane. In this structure, the portion of the second guide surface 853 facing the guide surface 8521 can form a flared opening with the guide surface 8521, allowing the patch nozzle 83 and the product to extend into the guide hole 851; the portion of the second guide surface 853 facing the clearance surface 8522 can guide the product to move and be aligned.

[0099] In another embodiment, please refer to Figure 16 The guide surface 8521 includes a first correction surface 8524 and a second correction surface 8525. The second correction surface 8525 connects the first correction surface 8524 and the clearance surface 8522, and a step portion 8523 is formed at the connection position between the second correction surface 8525 and the clearance surface 8522. Optionally, the first correction surface 8524 is an inclined surface, and the second correction surface 8525 can be a vertically arranged plane. The second correction surface 8525 can be parallel to and spaced apart from the clearance surface 8522. This structure allows the product to be guided to move and be aligned once through the first correction surface 8524 and to move and be aligned twice through the second correction surface 8525, which helps to improve the alignment accuracy of the product and thus improve the placement accuracy of the product.

[0100] In another embodiment, please refer to Figure 16The second guide surface 853 includes a first guide surface 8531, a second guide surface 8532, and a third guide surface 8533. The second guide surface 8532 connects the first guide surface 8531 and the third guide surface 8533. The first guide surface 8531 may be directly opposite to the first correction surface 8524. The first guide surface 8531 may be an inclined surface, and the first guide surface 8531 and the first correction surface 8524 form a flared opening, allowing the patch nozzle 83 and the product to extend into the guide hole 851. The second guide surface 8532 may be directly opposite to the second correction surface 8525. The second guide surface 8532 may be a vertically arranged plane. During the process of guiding the product to move and be aligned by the second correction surface 8525, the second guide surface 8532 can avoid the product. The third guide surface 8533 can be set directly opposite to the avoidance surface 8522. The third guide surface 8533 can be an inclined surface. After the guide surface 8521 guides one end of the product to move and be aligned, the third guide surface 8533 can guide the other end of the product to move and be aligned.

[0101] For example, taking a square product as an example, the product can enter the guide hole 851 through the flared opening formed by the first correction surface 8524 and the first guide surface 8531, which can guide the product for coarse alignment; then, the second correction surface 8525 can guide the product to achieve a first fine alignment, which can guide the left and rear sides of the product to move and align; then, the third guide surface 8533 can guide the product to achieve a second fine alignment, which can guide the right and front sides of the product to move and align, so as to ensure that the product is located in the center of the mounting nozzle 83; finally, the product is attached to the part to be mounted.

[0102] In one embodiment, see Figure 12 The chip mount slide 82 includes a chip mount slide plate 821 and a chip mount positioning seat 822. The chip mount slide plate 821 is slidably mounted on the chip mount 81 via a guide rail pair, and the chip mount positioning seat 822 is mounted on the chip mount slide plate 821. The chip mount power unit 84 is connected to the chip mount slide plate 821, and the chip mount nozzle 83 is mounted on the chip mount positioning seat 822. This structure allows the chip mount positioning seat 822 to be supported by the chip mount slide plate 821, and the chip mount nozzle 822 to be supported by the chip mount positioning seat 822, facilitating the installation and removal of the chip mount nozzle 83.

[0103] In one embodiment, the patch slide seat 82 further includes a patch elastic member (not shown), one end of which abuts against the patch positioning seat 822, and the other end of which abuts against the patch nozzle 83. Optionally, the patch elastic member can be a spring, which can be sleeved on the patch nozzle 83. In this structure, the patch elastic member can provide cushioning protection for the patch nozzle 83, preventing damage to the patch nozzle 83 caused by a hard impact when the patch nozzle 83 applies the product to the part to be patched.

[0104] In one embodiment, see Figure 12 and Figure 13 The placement positioning seat 822 is equipped with a positioning guide rod 823, and the guide seat 85 has a positioning hole 850 corresponding to the position of the positioning guide rod 823. This structure, through the cooperation of the positioning guide rod 823 and the positioning hole 850, can realize the alignment and adjustment of the placement nozzle 83 and the guide hole 851, thus adapting to products of different sizes.

[0105] In one embodiment, see Figure 12 The patch assembly 8 also includes a detector 86 mounted on the patch holder 81. Optionally, the detector 86 can be a through-beam fiber, a height detector, etc. In this structure, the detector 86 can detect the height to which the patch power unit 84 lifts the patch nozzle 83, preventing the patch nozzle 83 from colliding with other components and being damaged during movement, thus providing a mechanical foolproof function.

[0106] In one embodiment, see Figure 5 The placement assembly 8 also includes a placement traversing unit 87 mounted on the frame, on which the placement holder 81 can be mounted. In this configuration, the placement traversing unit 87 can drive the placement nozzle 83 to move laterally, thereby transferring the product picked up from the carrier assembly 4 to the placement position. Optionally, the placement traversing unit 87 can be a screw-driven mechanism. Of course, the placement traversing unit 87 can also be a cylinder-driven mechanism, a linear motor, etc.

[0107] In one embodiment, see Figure 5 and Figure 17 The chip feeding assembly 9 may include two chip feeding side seats 91 spaced apart on the frame, chip feeding rollers 92 mounted at both ends of each chip feeding side seat 91, chip feeding belts 93 connecting the two corresponding chip feeding rollers 92, and a chip feeding motor 94 mounted on the chip feeding side seat 91 and connected to one of the chip feeding rollers 92. In this configuration, the two chip feeding belts 93 can receive the chip components to be fed by the feeding assembly 7 after chip feeding, and move them to the next station under the drive of the chip feeding motor 94.

[0108] In one embodiment, see Figure 5 The feeding component 7 can be located between the surface mount feeding unit and the surface mount unloading component 9, and the structure of the surface mount feeding unit can be the same as that of the surface mount unloading component 9.

[0109] In one embodiment, see Figure 5 The number of feeding components 1, rail front imaging components 2, rail front blowing components 3, feeding correction devices and material transfer components 6 can be two. The feeding components 1, rail front imaging components 2, rail front blowing components 3, feeding correction devices and material transfer components 6 form a feeding module. The two feeding modules can be set on both sides of the patch component 8 to realize feeding from both sides and improve efficiency.

[0110] The placement method of the placement machine provided in this application embodiment may include the following steps:

[0111] The feeding assembly 1 feeds the product to the feeding position. Specifically, vibratory feeding is achieved through the cooperation of the storage hopper 11 and the vibratory feeder 12.

[0112] The track-front imaging component 2 inspects the product. Specifically, the detection unit 21 acquires the product's position information; the camera unit 22 acquires the product's image information.

[0113] If the product is qualified, it is picked up by the transfer component 6 at the loading position and transferred to the carrier body 20. If the product is unqualified, it is rejected by the front-rail blowing component 3. Specifically, the first blowing nozzle 33 blows the unqualified product into the first blowing channel 321 and stores it in the waste box 31 along the first blowing channel 321. If the product is not oriented correctly, the transfer suction nozzle 62 can be driven to rotate by the transfer rotary motor 65 to correct the product orientation.

[0114] The transfer assembly 6 transfers the product onto the carrier body 20. Specifically, during the transfer process, the transfer nozzle 62 of the transfer assembly 6 first passes through the front rail alignment seat 51, and the front rail alignment hole 511 on the front rail alignment seat 51 can align the product. The aligned product is then adsorbed and fixed by the adsorption hole 204 on the carrier body 20.

[0115] The carrier imaging unit 60 performs image recognition on the products on the carrier body 20. Specifically, if the products on the carrier body 20 are qualified, the power drive assembly 30 transfers the products to the mounting position. If the products on the carrier body 20 are unqualified, the second blow nozzle 35 blows the products at that position into the waste box 31. The power drive assembly 30 reverses the drive of the carrier body 20 back to the loading position for re-filling. This process is repeated until the products carried on the carrier body 20 are free of defects. During this process, two correction units 50 can perform correction operations on the products on the carrier body 20. Specifically, the power drive assembly 30 drives the carrier body 20 through the channel formed by the two correction units 50, and the two correction units 50 can correct the products on the carrier body 20.

[0116] The feeding assembly 7 supplies the parts to be mounted to the mounting position;

[0117] The patch assembly 8 picks up the product from the carrier body 20 and applies the product to the part to be patched. Specifically, the guide hole 851 can guide the product adsorbed on the patch nozzle 83, and the guided product is applied to the part to be patched from the feeding assembly 7.

[0118] After the mounting is completed, the component to be mounted can be transferred from the feeding assembly 7 to the mounting unloading assembly 9, and the mounting unloading assembly 9 will then transfer the mounted component to the next station.

[0119] The above description is merely an optional embodiment of this application and is not intended to limit this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A material loading correction device characterized by comprising: The device comprises: a mounting base; a carrier body for supporting fixed products; a power-driven assembly mounted on the mounting base and connected with the carrier body for driving the carrier body to move; a loading correction base mounted on the mounting base; two correction units mounted on the loading correction base, a channel being formed between the two correction units, the two correction units being used for correcting the products on the carrier body when the carrier body is driven by the power-driven assembly to pass through the channel; the correction unit comprises a rotating base hingedly connected to the loading correction base, a correction wheel for correcting the products, and a correction elastic member for elastically pushing the rotating base, the correction wheel being rotatably mounted at one end of the rotating base, one end of the correction elastic member being in abutment with the other end of the rotating base, and the other end of the correction elastic member being in abutment with the loading correction base.

2. The loading correction device according to claim 1, characterized in that: The hinged position of the rotating base and the loading correction base is a hinge point, the straight-line distance between the correction wheel and the hinge point being less than the straight-line distance between the correction elastic member and the hinge point.

3. The loading correction device according to claim 1, wherein: The correction unit further comprises an angle adjusting unit for controlling the rotation angle of the rotating base, the angle adjusting unit being mounted on the rotating base.

4. The loading correction device according to claim 3, wherein: The rotating base is provided with an internally-threaded hole, the angle adjusting unit comprises an adjusting screw threadedly connected in the internally-threaded hole, one end of the adjusting screw extending out of the internally-threaded hole being in abutment with the loading correction base.

5. The loading correction device according to claim 4, wherein: The rotating base is provided with a threaded hole in communication with the internally-threaded hole, the correction unit further comprises a locking member for locking the adjusting screw, the locking member being mounted in the threaded hole and being in abutment with the adjusting screw.

6. The loading correction device according to any one of claims 1 to 5, characterized in that: The loading correction base is provided with a limiting baffle, the two correction units being arranged on the two sides of the limiting baffle respectively.

7. The loading correction device according to any one of claims 1 to 5, characterized in that: The loading correction base comprises a first adjusting base, a second adjusting base supporting the first adjusting base, a horizontal movement control unit for controlling the horizontal movement of the first adjusting base, a third adjusting base supporting the second adjusting base, a vertical movement control unit for controlling the vertical movement of the second adjusting base, and a lifting control unit for controlling the lifting of the third adjusting base; the horizontal movement control unit is mounted on the second adjusting base and connected with the first adjusting base, the vertical movement control unit is mounted on the third adjusting base and connected with the second adjusting base, the third adjusting base and the lifting control unit are mounted on the mounting base respectively and connected with each other, and the two correction units are mounted on the first adjusting base.

8. The loading correction device according to any one of claims 1 to 5, characterized in that: The carrier body comprises a carrier base mounted on the power-driven assembly and a carrier support seat for passing through the channel, the carrier support seat is provided with a containing groove for containing the products, and the inner side wall of the containing groove is provided with an adsorption hole for adsorbing and fixing the products.

9. A chip mounter characterized by: The device comprises the loading correction device according to any one of claims 1-8.

Images