In-line tri-axial automatic dispensing apparatus

Abstract

The utility model relates to an online three -axis type automatic point glue equipment, including frame, clamp, feeding assembly, adjusting assembly, point glue component and wipe rubber component, and feeding assembly is used for conveying clamp, point glue component includes needle head, wipe rubber component includes first winding shaft, second winding shaft, third winding shaft, fourth winding shaft, first clamping block, second clamping block and wipe rubber band, second winding shaft and third winding shaft set up respectively in both ends of first winding shaft, fourth winding shaft sets up between first winding shaft and third winding shaft, wipe rubber band winds first winding shaft, second winding shaft, third winding shaft and fourth winding shaft in proper order, first clamping block and second clamping block slide respectively in both sides of wipe rubber band, and with the opposite sliding of first clamping block and second clamping block makes wipe rubber band abuts against the outside of needle head. This point glue equipment makes wipe rubber band abuts against the outside of needle head through the opposite sliding of first clamping block and second clamping block, thereby removes the glue of needle head's outside and glue outlet's residue, and the cleaning effect is good.

Description

Technical Field

[0001] This utility model relates to the field of dispensing equipment technology, and in particular to an online three-axis automatic dispensing equipment. Background Technology

[0002] In the manufacturing process of electronic products, adhesive needs to be applied to specific locations on the PCB board before electronic components are bonded to it. For example, Chinese Patent CN116020701A discloses an online 3D guided dispensing machine and its control method, including a frame and a dual-channel Y-axis motion assembly, an X-axis motion assembly one, an X-axis motion assembly two, a Z-axis motion assembly one, a Z-axis motion assembly two, a 3D guiding assembly, a dispensing assembly, and a glue-wiping and weighing assembly mounted on the frame. The glue-wiping and weighing assembly is used to weigh the amount of glue dispensed and clean the dispensing head. The glue-wiping and weighing assembly includes a glue-wiping component and a weighing device. The glue-wiping component has a glue-wiping block with a tape on top. The two ends of the tape are connected to a take-up roller and a feed roller, respectively, located on the left and right sides of the glue-wiping block. The take-up roller is driven by a seventh motor. The glue-wiping block, the take-up roller, and the feed roller are all mounted on a glue-wiping fixing plate. However, the tape can only clean the glue outlet of the glue head, and cannot clean the residual glue on the outside of the glue head, so the cleaning is not thorough enough. Utility Model Content

[0003] Therefore, it is necessary to provide an online three-axis automatic dispensing device to address the above problems.

[0004] An online three-axis automatic dispensing device includes a frame, a clamp, a feeding assembly, an adjusting assembly, a dispensing assembly, and an erasing assembly. The feeding assembly is mounted on the frame and is used to convey the clamp. The adjusting assembly is mounted on the frame, and the dispensing assembly is mounted on the adjusting assembly. The dispensing assembly includes a needle. The erasing assembly includes a first winding shaft, a second winding shaft, a third winding shaft, a fourth winding shaft, a first clamping block, a second clamping block, and an erasing tape. The second and third winding shafts are respectively disposed at both ends of the first winding shaft, and the fourth winding shaft is disposed between the first and third winding shafts. The erasing tape is sequentially wound around the first, second, third, and fourth winding shafts. The first and second clamping blocks are respectively slidably disposed on both sides of the erasing tape, and the erasing tape abuts against the outside of the needle as the first and second clamping blocks slide towards each other.

[0005] In one embodiment, the adhesive wiping assembly further includes a first protrusion and a second protrusion, the first protrusion being inserted into the first clamping block and the second protrusion being inserted into the second clamping block, with one side of the first protrusion and one side of the second protrusion respectively abutting against one side of the adhesive wiping strip.

[0006] In one embodiment, the adhesive application assembly further includes a first transition shaft, a second transition shaft, a third clamping block, and a fourth clamping block. The first transition shaft is disposed on one side of the first winding shaft, and the second transition shaft is disposed on one side of the fourth winding shaft. The adhesive application tape is sequentially wound around the first transition shaft, the first winding shaft, the second winding shaft, the third winding shaft, the fourth winding shaft, and the second transition shaft. The third clamping block and the fourth clamping block are respectively slidably disposed on both sides of the adhesive application tape, and the adhesive application tape abuts against the outer side of the needle as the third clamping block and the fourth clamping block slide towards each other.

[0007] In one embodiment, the adhesive application assembly further includes a clamping block power element, a feeding roller, and a receiving roller. The clamping block power element is used to drive the first clamping block and the second clamping block to slide synchronously towards each other. The receiving roller and the feeding roller are respectively rotatably connected to the frame. One end of the adhesive application belt is connected to the feeding roller, and the other end is connected to the first winding shaft. One end of the adhesive application belt is connected to the receiving roller, and the other end is connected to the fourth winding shaft.

[0008] In one embodiment, the feeding assembly includes a first support plate, a first conveyor wheel, a first conveyor belt, a second support plate, a second conveyor wheel, and a second conveyor belt. The first support plate is mounted on the frame. There are multiple first conveyor wheels, each of which is pivotally connected to the first support plate. The first conveyor belt is sequentially connected to each of the first conveyor wheels. The second support plate is slidably disposed on the frame. There are multiple second conveyor wheels, each of which is pivotally connected to the second support plate. The second conveyor belt is sequentially connected to each of the second conveyor wheels. The first conveyor belt and the second conveyor belt cooperate to convey the clamp.

[0009] In one embodiment, the feeding assembly further includes a guide rail, a support, a transmission rod, and a handwheel. The guide rail and the support are both mounted on the frame. The second support plate slides on the guide rail. The transmission rod passes through the first support plate, the second support plate, and the support in sequence. The handwheel is mounted on one end of the transmission rod and is used to drive the transmission rod to rotate. The feeding assembly further includes a limiting power element, a limiting block, and a limiting sensor. The limiting power element is mounted on the first support plate and is used to drive the limiting block to rise and fall. The limiting block is used to abut one end of the clamp. The limiting sensor is mounted on one side of the limiting power element and is used to detect the position of the clamp.

[0010] In one embodiment, a lifting assembly is further included. The lifting assembly includes a positioning plate, a lifting power element, a top plate, a rack, a gear, and a synchronous shaft. There are two of each of the positioning plate, lifting power element, top plate, rack, and gear, and they correspond one-to-one. The positioning plate, lifting power element, top plate, rack, and gear are installed on both the first support plate and the second support plate. The lifting power element is used to drive the top plate closer to or away from the positioning plate. The top plate is used to abut against the bottom of the clamp, and the positioning plate is used to abut against the top of the clamp. One end of the rack is installed on the top plate, and the gear meshes with the rack. The synchronous shaft passes through the first support plate and the second support plate, and the gear is installed on the synchronous shaft.

[0011] In one embodiment, the adjustment assembly includes a Y-axis slide plate, an X-axis slide plate, and a Z-axis slide plate. The Y-axis slide plate is slidably mounted on the frame, the X-axis slide plate is slidably mounted on the Y-axis slide plate, and the Z-axis slide plate is slidably mounted on the X-axis slide plate. The dispensing assembly is mounted on the Z-axis slide plate.

[0012] In one embodiment, a detection component is further included, comprising a CCD lens, a light source, a height detector, a needle height sensor, a needle alignment lens, and a controller. The CCD lens is mounted on the Z-axis slide plate and is used to scan the identification code of the workpiece on the fixture, locate the position of the workpiece on the fixture, and detect the glue path of the workpiece after dispensing. The light source is mounted below the CCD lens. The height detector is mounted on the Z-axis slide plate and is used to detect the height of the workpiece on the fixture. The needle height sensor is mounted on the frame and is used to detect the height of the needle tip. The needle alignment lens is mounted on one side of the needle height sensor and is used to detect the position of the needle tip. The CCD lens, light source, height detector, needle height sensor, and needle alignment lens are all signal-connected to the controller.

[0013] In one embodiment, a weighing device is also included, which is mounted on the frame and is used to weigh the glue.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0015] The online three-axis automatic dispensing device of this invention uses the opposing sliding of the first clamp and the second clamp to make the wiping tape come into contact with the outside of the needle, thereby removing the glue residue on the outside of the needle and the dispensing port, resulting in excellent cleaning effect. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of an online triaxial automatic dispensing device according to an embodiment of the present invention;

[0017] Figure 2 for Figure 1 The diagram shown is a structural schematic of an online three-axis automatic dispensing equipment, in which the machine cover is not shown;

[0018] Figure 3 for Figure 2 Schematic diagram of the structure of the central feeding assembly and the lifting assembly;

[0019] Figure 4 for Figure 2 Enlarged view of center circle A;

[0020] Figure 5 for Figure 2 A magnified view of circle B in the center.

[0021] The meanings of the numbers in the attached diagram are as follows:

[0022] 100. Online three-axis automatic dispensing equipment;

[0023] 10. Frame; 11. Machine base; 12. Machine cover; 121. Feed inlet; 13. Support; 14. Base plate; 20. Fixture; 30. Feeding assembly; 31. First support plate; 32. First conveyor wheel; 33. First conveyor belt; 34. Second support plate; 35. Transmission rod; 36. Handwheel; 37. Limiting power element; 38. Limiting block; 39. Limiting sensor; 40. Adjustment assembly; 41. Y-axis slide plate; 42. X-axis slide plate; 43. Z-axis slide plate; 44. Y-axis adjusting power element; 45. X-axis adjusting power element;

[0024] 50. Dispensing assembly; 51. Needle; 52. Dispensing valve; 60. Glue wiping assembly; 61. First winding shaft; 62. Second winding shaft; 63. Third winding shaft; 64. Fourth winding shaft; 65. First clamping block; 66. Second clamping block; 67. Glue wiping tape; 68. First protrusion; 69. Second protrusion; 61a. First transition shaft; 62a. Second transition shaft; 63a. Third clamping block; 64a. Fourth clamping block; 65a. Feeding roller; 66a. Receiving roller; 67a. Collecting cylinder; 70. Lifting assembly; 71. Positioning plate; 72. Lifting power element; 73. Top plate; 74. Rack; 75. Gear; 76. Synchronous shaft; 80. Weighing device; 90. Detection assembly; 91. CCD lens; 92. Light source; 93. Height detector; 94. Needle height sensor; 95. Needle alignment lens. Detailed Implementation

[0025] To make the above-mentioned objects, features, and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a full understanding of this utility model. However, this utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed below.

[0026] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0027] 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 indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0028] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; 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, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0029] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0030] It should be noted that when an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. When an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0031] Please refer to Figures 1 to 5 An online three-axis automatic dispensing device 100 according to one embodiment of the utility model includes a frame 10, a clamp 20, a feeding assembly 30, an adjusting assembly 40, a dispensing assembly 50, and a wiping assembly 60. The feeding assembly 30 is mounted on the frame 10 and is used to convey the clamp 20. The adjusting assembly 40 is mounted on the frame 10, and the dispensing assembly 50 is mounted on the adjusting assembly 40. The dispensing assembly 50 includes a needle 51. The wiping assembly 60 includes a first winding shaft 61, a second winding shaft 62, a third winding shaft 63, a fourth winding shaft 64, a first clamping block 65, and a third winding shaft 64. Two clamping blocks 66 and an adhesive tape 67 are used. The second winding shaft 62 and the third winding shaft 63 are respectively disposed at both ends of the first winding shaft 61. The third winding shaft 63 is disposed between the first winding shaft 61 and the third winding shaft 63. The adhesive tape 67 is wound sequentially around the first winding shaft 61, the second winding shaft 62, the third winding shaft 63 and the fourth winding shaft 64. The first clamping block 65 and the second clamping block 66 are respectively slidably disposed on both sides of the adhesive tape 67. As the first clamping block 65 and the second clamping block 66 slide towards each other, the adhesive tape 67 abuts against the outside of the needle 51. This online three-axis automatic dispensing device 100 removes residual glue from the outside of the needle 51 and the dispensing port by sliding the first clamping block 65 and the second clamping block 66 towards each other, resulting in excellent cleaning effect.

[0032] like Figure 1 and Figure 2As shown, in this embodiment, the frame 10 includes a machine base 11, a machine cover 12, a support 13, and a base plate 14. The machine cover 12 is mounted on the machine base 11, and the two ends of the machine cover 12 are respectively provided with a feed port 121 and a discharge port (not shown in the figure); the support 13 is mounted on the machine base 11. Optionally, there are two supports 13, and the two supports 13 are respectively mounted on the two ends of the machine base 11; the base plate 14 is mounted on the support 13.

[0033] like Figure 2 and Figure 3 As shown, the feeding assembly 30 is mounted on the frame 10 and is used to convey the fixture 20, which is used to carry the workpiece. The feeding assembly 30 includes a first support plate 31, a first conveyor wheel 32, a first conveyor belt 33, a second support plate 34, a second conveyor wheel (not shown), and a second conveyor belt (not shown). The first support plate 31 is mounted on the machine base 11 of the frame 10. There are multiple first conveyor wheels 32, each of which is pivotally connected to the first support plate 31. The first conveyor belt 33 is sequentially connected to each of the first conveyor wheels 32. The second support plate 34 is slidably mounted on the machine base 11 of the frame 10. There are multiple second conveyor wheels, each of which is pivotally connected to the second support plate. 34. The second conveyor belt is sequentially connected to each of the second conveyor wheels. The first conveyor belt 33 cooperates with the second conveyor belt to convey the clamp 20. The second support plate 34 is slidably mounted on the machine base 11. The distance between the second support plate 34 and the first support plate 31 can be adjusted to accommodate clamps 20 of different sizes. Optionally, both the first support plate 31 and the second support plate 34 are provided with clearance grooves (not shown in the figure). Further, the feeding assembly 30 also includes a first motor (not shown in the figure) and a second motor (not shown in the figure). The first motor is used to drive the first conveyor belt 33 to convey, and the second motor is used to drive the second conveyor belt to convey.

[0034] In one embodiment, the feeding assembly 30 further includes a guide rail (not shown), a support (not shown), a transmission rod 35, and a handwheel 36. The guide rail and the support are both mounted on the machine base 11 of the frame 10. The second support plate 34 slides on the guide rail. The transmission rod 35 passes sequentially through the first support plate 31, the second support plate 34, and the support. The handwheel 36 is mounted on one end of the transmission rod 35 and is used to drive the transmission rod 35 to rotate, thereby causing the second support plate 34 to slide. Optionally, the transmission rod 35 is a lead screw. Further, there are two supports and two transmission rods 35, which are connected to a synchronous belt via a synchronous pulley to achieve synchronous rotation. In use, according to the size of the clamp 20, the handwheel 36 is rotated to drive the transmission rod 35 to rotate, thereby causing the second support plate 34 to slide, thus adjusting the distance between the second support plate 34 and the first support plate 31. In other embodiments, the second support plate 34 can be directly driven to slide by a motor.

[0035] like Figure 3 As shown, the feeding assembly 30 also includes a limiting power element 37, a limiting block 38, and a limiting sensor 39. The limiting power element 37 is installed on the first support plate 31 and is used to drive the limiting block 38 to rise and fall. The limiting block 38 is used to abut one end of the clamp 20. The limiting sensor 39 is installed on one side of the limiting power element 37 and is used to detect the position of the clamp 20. When the limiting sensor 39 detects the clamp 20, the first conveyor belt 33 and the second conveyor belt stop conveying. At the same time, the limiting power element 37 drives the limiting block 38 to rise, so that the limiting block 38 abuts one end of the clamp 20, thereby limiting the position of the clamp 20.

[0036] like Figure 2 As shown, the adjustment assembly 40 is installed on the frame 10. The adjustment assembly 40 includes a Y-axis slide plate 41, an X-axis slide plate 42, and a Z-axis slide plate 43. The Y-axis slide plate 41 is slidably mounted on the frame 10, the X-axis slide plate 42 is slidably mounted on the Y-axis slide plate 41, and the Z-axis slide plate 43 is slidably mounted on the X-axis slide plate 42. Optionally, the Y-axis slide plate 41 is slidably mounted on the bracket 13. Further, the adjustment assembly 40 also includes a Y-axis adjustment power element 44, an X-axis adjustment power element 45, and a Z-axis adjustment power element (not shown in the figure). The Y-axis adjustment power element 44 is used to drive the Y-axis slide plate 41 to slide, the X-axis adjustment power element 45 is used to drive the X-axis slide plate 42 to slide, and the Z-axis adjustment power element is used to drive the Z-axis slide plate 43 to slide.

[0037] like Figure 4 As shown, the dispensing assembly 50 is mounted on the adjusting assembly 40. Optionally, the dispensing assembly 50 is mounted on the Z-axis slide plate 43. The dispensing assembly 50 includes a needle 51 and a dispensing valve 52. The dispensing valve 52 is mounted on the Z-axis slide plate 43, and the needle 51 is detachably mounted on the dispensing valve 52.

[0038] like Figure 5As shown, the adhesive wiping assembly 60 includes a first winding shaft 61, a second winding shaft 62, a third winding shaft 63, a fourth winding shaft 64, a first clamping block 65, a second clamping block 66, and an adhesive wiping tape 67. The second winding shaft 62 and the third winding shaft 63 are respectively disposed at both ends of the first winding shaft 61, and the fourth winding shaft 64 is disposed between the first winding shaft 61 and the third winding shaft 63. The adhesive wiping tape 67 is wound around the first winding shaft 61, the second winding shaft 62, the third winding shaft 63, and the fourth winding shaft 64 in sequence. The first clamping block 65 and the second clamping block 66 are respectively slidably disposed on both sides of the adhesive wiping tape 67. As the first clamping block 65 and the second clamping block 66 slide towards each other, the adhesive wiping tape 67 abuts against the outside of the needle 51, thereby removing the adhesive residue on the outside of the needle 51 and the adhesive outlet. Optionally, the second winding shaft 62 and the third winding shaft 63 are horizontally disposed on the substrate 14 along the X-axis direction, and the first winding shaft 61 and the fourth winding shaft 64 are horizontally disposed on the substrate 14 along the X-axis direction; the cleaning tape 67 is sequentially wound around the first winding shaft 61, the second winding shaft 62, the third winding shaft 63 and the fourth winding shaft 64 in a "U" shape; further, the cleaning tape 67 is a cleanroom cloth tape.

[0039] In one embodiment, the adhesive application assembly 60 further includes a first protrusion 68 and a second protrusion 69. The first protrusion 68 is inserted into the first clamping block 65, and the second protrusion 69 is inserted into the second clamping block 66. One side of the first protrusion 68 and one side of the second protrusion 69 respectively abut against one side of the adhesive application strip 67. Optionally, one side of the first protrusion 68 protrudes from one side of the first clamping block 65, and one side of the second protrusion 69 protrudes from one side of the second clamping block 66. Further, both the first protrusion 68 and the second protrusion 69 are... Made of a soft material, in one embodiment, the first protrusion 68 and the second protrusion 69 are both sponge pillars; when applying adhesive, the needle 51 moves between the first clamping block 65 and the second clamping block 66, the first clamping block 65 and the second clamping block 66 move closer to each other synchronously, and drive the first protrusion 68 and the second protrusion 69 to squeeze the two sides of the needle 51, thereby forcing the first protrusion 68 and the second protrusion 69 to deform, so that the first protrusion 68 and the second protrusion 69 cover the needle 51, thereby causing the corresponding adhesive strip 67 to wipe away the adhesive on the outside of the needle 51 and the adhesive outlet.

[0040] like Figure 5As shown, the adhesive application assembly 60 further includes a first transition shaft 61a, a second transition shaft 62a, a third clamping block 63a, and a fourth clamping block 64a. The first transition shaft 61a is disposed on one side of the first winding shaft 61, and the second transition shaft 62a is disposed on one side of the fourth winding shaft 64. The adhesive application tape 67 is sequentially wound around the first transition shaft 61a, the first winding shaft 61, the second winding shaft 62a, the third winding shaft 63a, the fourth winding shaft 64a, and the second transition shaft 62a. The third clamping block 63a and the fourth clamping block 64a are respectively slidably disposed on both sides of the adhesive application tape 67. As the third clamping block 63a and the fourth clamping block 64a slide towards each other, the adhesive application tape 67 abuts against the outer side of the needle tip 51. Optionally, the first transition shaft 61a and the first winding shaft 61 are vertically disposed on the substrate 14 along the Y-axis direction, and the second transition shaft 62a and the fourth winding shaft 64 are vertically disposed on the substrate 14 along the Y-axis direction. That is, the straight line containing the second winding shaft 62 and the third winding shaft 63 forms a "T" shape with the straight line containing the first transition shaft 61a and the first winding shaft 61. Thus, the first clamping block 65 and the second clamping block 66, and the third clamping block 63a and the fourth clamping block 64a respectively correspond to different sides of the needle 51, ensuring that the needle 51 is thoroughly cleaned. Further, the adhesive wiping assembly 60 also includes a third protrusion (not shown in the figure) and a fourth protrusion (not shown in the figure). The third protrusion is inserted into the third clamping block 63a, and the fourth protrusion is inserted into the fourth clamping block 64a. The third protrusion, the fourth protrusion, and the first protrusion 68 have the same structure, which will not be described in detail below.

[0041] In one embodiment, the adhesive application assembly 60 further includes a clamping block power element (not shown), a feeding roller 65a, and a receiving roller 66a. The clamping block power element is used to drive the first clamping block 65 and the second clamping block 66 to slide synchronously towards each other. The receiving roller 66a and the feeding roller 65a are respectively rotatably connected to the base plate 14 of the frame 10. One end of the adhesive application belt 67 is connected to the feeding roller 65a, and the other end is connected to the first winding shaft 61. One end of the adhesive application belt 67 is connected to the receiving roller 66a, and the other end is connected to the fourth winding shaft 64. Optionally, one end of the adhesive application belt 67 is connected to the feeding roller 65a, and the other end is connected to the first transition shaft 61a. One end of the adhesive application belt 67 is connected to the receiving roller 66a, and the other end is connected to the second transition shaft 62a. Furthermore, the adhesive application assembly 60 also includes a clamping power element (not shown), a dispensing power element (not indicated), and a receiving power element (not indicated). The clamping power element drives the third clamping block 63a and the fourth clamping block 64a to slide synchronously towards each other. The dispensing power element drives the dispensing roller 65a to rotate, and the receiving power element drives the receiving roller 66a to rotate. The adhesive application assembly 60 also includes a collection cylinder 67a mounted on the substrate 14, which collects the waste adhesive discharged from the needle 51.

[0042] During the adhesive application process, the needle 51 moves between the first clamping block 65 and the second clamping block 66. The clamping block power element drives the first clamping block 65 and the second clamping block 66 to simultaneously approach the needle 51, thereby causing the first protrusion 68 and the second protrusion 69 to squeeze both sides of the needle 51 and force them to deform, causing the corresponding adhesive application strip 67 to cover the needle 51. Then, the needle 51 rises, allowing the adhesive application strip 67 to wipe away the adhesive on the outside of the needle 51 and the adhesive outlet. Next, the needle 51 moves between the third clamping block 63a and the fourth clamping block 64a, which simultaneously approach the needle 51, performing the same operation as the first clamping block 65 and the second clamping block 66, thus completing the cleaning of the needle 51. Finally, the feeding roller 65a and the receiving roller 66a rotate synchronously to complete the replacement of the adhesive application strip.

[0043] like Figure 3 As shown, the online three-axis automatic dispensing equipment 100 also includes a lifting assembly 70. The lifting assembly 70 includes a positioning plate 71, a lifting power element 72, a top plate 73, a rack 74, a gear 75, and a synchronous shaft 76. There are two of each of the positioning plate 71, lifting power element 72, top plate 73, rack 74, and gear 75, and they correspond one-to-one. The first support plate 31 and the second support plate 34 are both equipped with the positioning plate 71, lifting power element 72, top plate 73, rack 74, and gear 76. Wheel 75, the lifting power element 72 is used to drive the top plate 73 to move closer to or away from the positioning plate 71, the top plate 73 is used to abut the bottom of the clamp 20, and the positioning plate 71 is used to abut the top of the clamp 20; when dispensing glue, the clamp 20 is fixed by the cooperation of the top plate 73 and the positioning plate 71, and the clamp 20 is pushed away from the first conveyor belt 33 and the second conveyor belt by the top plate 73, so that the other clamp 20 can be conveyed to other workstations via the first conveyor belt 33 and the second conveyor belt, thereby realizing synchronous processing. One end of the rack 74 is installed on the top plate 73, the gear 75 meshes with the rack 74, the synchronous shaft 76 passes through the first support plate 31 and the second support plate 34, the gear 75 is installed on the synchronous shaft 76, and the synchronous shaft 76, the gear 75 and the rack 74 cooperate to realize the synchronous lifting and lowering of the two top plates 73. Optionally, one side of the top plate 73 is accommodated in a relief groove.

[0044] like Figure 5As shown, the online three-axis automatic dispensing equipment 100 also includes a weighing device 80, which is installed on the base plate 14 of the frame 10. The weighing device 80 is used to weigh the glue. Before dispensing each workpiece, the needle 51 needs to be calibrated. The needle 51 moves to the collection cylinder 67a and dispenses glue into the collection cylinder 67a several times to ensure smooth glue dispensing. Then, the needle 51 moves to the glue wiping station to wipe the glue. After wiping the glue, the needle 51 moves back to the weighing device 80 and dispenses glue onto the weighing device 80. The weight of the dispensed glue is obtained by measuring the data from the weighing device 80. If the weight of the dispensed glue is within the specified range, the calibration of the needle 51 is completed. In addition, after the needle 51 has been used a certain number of times, the needle 51 is calibrated in the same way to improve the assembly accuracy of electronic components and PCB boards.

[0045] like Figure 4 and Figure 5As shown, the online three-axis automatic dispensing equipment 100 also includes a detection component 90, which includes a CCD lens 91, a light source 92, a height detector 93, a needle height sensor 94, a needle alignment lens 95, and a controller (not shown). The CCD lens 91 is mounted on the Z-axis slide plate 43 and is used to scan the identification code of the workpiece on the fixture 20, locate the position of the workpiece on the fixture 20, and detect the glue path of the workpiece after dispensing. The light source 92 is mounted below the CCD lens 91. The height detector 93 is mounted on the Z-axis slide plate 43 and is used to detect the height of the workpiece on the fixture 20. Since the height of each workpiece and the fixture 20 may differ, the height detector 93 is used to detect the height of the workpiece on the fixture 20 to determine the actual placement height of the workpiece and prevent the needle 51 from hitting the workpiece. Optionally, the height detector 93 is a laser sensor. The needle height sensor 94 is mounted on the base plate 14 of the frame 10 and is used to detect the height of the needle tip 51. The needle alignment lens 95 is mounted on one side of the needle height sensor 94 and is used to detect the position of the needle tip 51. The CCD lens 91, light source 92, height detector 93, needle height sensor 94, and needle alignment lens 95 are all connected to the controller. The height of the workpiece on the fixture 20 is detected by the height detector 93 to determine the actual placement height of the workpiece. The actual placement height is compared with the preset height to obtain the height difference of the workpiece. The needle tip 51 is slowly brought to the needle height sensor 94 by the Z-axis slide plate 43, and the actual distance moved by the Z-axis slide plate 43 is recorded. The difference between the actual distance moved by the Z-axis slide plate 43 and the preset distance moved by the Z-axis slide plate 43 is the height difference of the needle tip 51. The needle tip 51 moves to the needle alignment lens 95, and the needle alignment lens 95 detects the actual position of the needle tip 51. The actual position is compared with the preset position to obtain the deviation in the X-axis and Y-axis directions. The controller recalculates based on the height difference between the workpiece and the needle 51, and corrects the deviation in the Z-axis direction to prevent the needle 51 from hitting the workpiece. The controller also recalculates based on the deviation of the needle 51 in the X and Y axes, and corrects the deviation in the X and Y axes to improve positioning accuracy.

[0046] This embodiment also provides a control method for an online three-axis automatic dispensing device. Based on the above-described online three-axis automatic dispensing device 100, the steps are as follows:

[0047] Feeding: Adjust the distance between the second support plate 34 and the first support plate 31 according to the size of the fixture 20; the fixture 20 with the workpiece enters the frame 10 from the feed port 121, and is conveyed synchronously to the dispensing station via the first conveyor belt 33 and the second conveyor belt until the limit sensor 39 senses the fixture 20, and the limit power element 37 drives the limit block 38 to rise so that the limit block 38 abuts against one end of the fixture 20; then, the lifting power element 72 drives the top plate 73 to rise towards the positioning plate 71, so that the top plate 73 drives the fixture 20 to rise until the top plate 73 abuts against the positioning plate 71, thereby fixing the position of the fixture 20.

[0048] Positioning: CCD lens 91 scans the identification code (such as barcode or QR code) of the workpiece on fixture 20, and CCD lens 91 locates the workpiece Mark point to determine the workpiece position; then, height detector 93 detects the height of the workpiece on fixture 20 to determine the actual placement height of the workpiece, and compares the actual placement height with the preset height to obtain the height difference of the workpiece; then, Z-axis slide plate 43 drives needle 51 to slowly contact needle height sensor 94, and records the actual distance moved by Z-axis slide plate 43. The difference between the actual distance moved by Z-axis slide plate 43 and the preset distance moved by Z-axis slide plate 43 is the height difference of needle 51; the needle 51 moves to needle alignment lens 95, needle alignment lens 95 detects the actual position of needle 51, and compares the actual position with the preset position to obtain the deviation in the X-axis and Y-axis directions. The controller recalculates based on the height difference between the workpiece and the needle 51, and corrects the deviation in the Z-axis direction to prevent the needle 51 from hitting the workpiece. The controller also recalculates based on the deviation of the needle 51 in the X and Y axes, and corrects the deviation in the X and Y axes to improve positioning accuracy.

[0049] Needle 51 calibration: Before dispensing glue onto each workpiece, needle 51 needs to be calibrated. Needle 51 is moved to the collection cylinder 67a, and glue is dispensed into the collection cylinder 67a several times by needle 51 to ensure smooth glue dispensing. After dispensing glue, needle 51 is moved to the glue wiping station for wiping. After wiping, needle 51 is moved to the weighing device 80, and glue is dispensed onto the weighing device 80. The weight of the dispensed glue is obtained by measuring the data from the weighing device 80. If the weight of the dispensed glue is within the specified range, the calibration of needle 51 is completed. In addition, after needle 51 has been used a certain number of times, needle 51 is calibrated in the same way to improve the assembly accuracy of electronic components and PCB boards.

[0050] Glue application: With the cooperation of X-axis slide plate 42, Y-axis slide plate 41 and Z-axis slide plate 43, the needle 51 is driven to apply glue to the PCB board according to the glue path.

[0051] Quality inspection: After the adhesive is applied, the CCD lens 91 inspects the adhesive application according to the adhesive path to check for any leakage.

[0052] The online three-axis automatic dispensing device 100 of this utility model removes residual glue from the outside of the needle 51 by sliding the first clamp 65 and the second clamp 66 towards each other, thereby achieving a good cleaning effect.

[0053] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0054] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. An online three-axis automatic dispensing device, characterized in that, The device includes a frame, a clamp, a feeding assembly, an adjusting assembly, a dispensing assembly, and an wiping assembly. The feeding assembly is mounted on the frame and is used to convey the clamp. The adjusting assembly is mounted on the frame, and the dispensing assembly is mounted on the adjusting assembly. The dispensing assembly includes a needle. The wiping assembly includes a first winding shaft, a second winding shaft, a third winding shaft, a fourth winding shaft, a first clamping block, a second clamping block, and a wiping tape. The second and third winding shafts are respectively disposed at both ends of the first winding shaft, and the fourth winding shaft is disposed between the first and third winding shafts. The wiping tape is sequentially wound around the first, second, third, and fourth winding shafts. The first and second clamping blocks are respectively slidably disposed on both sides of the wiping tape, and the wiping tape abuts against the outside of the needle as the first and second clamping blocks slide towards each other.

2. The online triaxial automatic dispensing equipment according to claim 1, characterized in that, The adhesive wiping assembly further includes a first protrusion and a second protrusion. The first protrusion is inserted into the first clamping block, and the second protrusion is inserted into the second clamping block. One side of the first protrusion and one side of the second protrusion respectively abut against one side of the adhesive wiping strip.

3. The online three-axis automatic dispensing equipment according to claim 1, characterized in that, The adhesive application assembly further includes a first transition shaft, a second transition shaft, a third clamping block, and a fourth clamping block. The first transition shaft is disposed on one side of the first winding shaft, and the second transition shaft is disposed on one side of the fourth winding shaft. The adhesive application tape is sequentially wound around the first transition shaft, the first winding shaft, the second winding shaft, the third winding shaft, the fourth winding shaft, and the second transition shaft. The third clamping block and the fourth clamping block are respectively slidably disposed on both sides of the adhesive application tape. As the third clamping block and the fourth clamping block slide towards each other, the adhesive application tape abuts against the outer side of the needle tip.

4. The online triaxial automatic dispensing equipment according to claim 1, characterized in that, The adhesive application assembly further includes a clamping block power element, a feeding roller, and a receiving roller. The clamping block power element is used to drive the first clamping block and the second clamping block to slide synchronously towards each other. The receiving roller and the feeding roller are respectively rotatably connected to the frame. One end of the adhesive application belt is connected to the feeding roller, and the other end is connected to the first winding shaft. One end of the adhesive application belt is connected to the receiving roller, and the other end is connected to the fourth winding shaft.

5. The online three-axis automatic dispensing equipment according to claim 1, characterized in that, The feeding assembly includes a first support plate, a first conveyor wheel, a first conveyor belt, a second support plate, a second conveyor wheel, and a second conveyor belt. The first support plate is mounted on the frame. There are multiple first conveyor wheels, each of which is pivotally connected to the first support plate. The first conveyor belt is sequentially connected to each of the first conveyor wheels. The second support plate is slidably mounted on the frame. There are multiple second conveyor wheels, each of which is pivotally connected to the second support plate. The second conveyor belt is sequentially connected to each of the second conveyor wheels. The first conveyor belt and the second conveyor belt cooperate to convey the clamp.

6. The online three-axis automatic dispensing equipment according to claim 5, characterized in that, The feeding assembly further includes a guide rail, a support, a transmission rod, and a handwheel. The guide rail and the support are both mounted on the frame. The second support plate slides on the guide rail. The transmission rod passes through the first support plate, the second support plate, and the support in sequence. The handwheel is mounted on one end of the transmission rod and is used to drive the transmission rod to rotate. The feeding assembly also includes a limiting power element, a limiting block, and a limiting sensor. The limiting power element is mounted on the first support plate and is used to drive the limiting block to rise and fall. The limiting block is used to abut one end of the clamp. The limiting sensor is mounted on one side of the limiting power element and is used to detect the position of the clamp.

7. The online three-axis automatic dispensing equipment according to claim 5, characterized in that, It also includes a lifting assembly, which comprises a positioning plate, a lifting power element, a top plate, a rack, a gear, and a synchronous shaft. There are two of each of the positioning plate, lifting power element, top plate, rack, and gear, and they correspond one-to-one. The first support plate and the second support plate are each equipped with the positioning plate, lifting power element, top plate, rack, and gear. The lifting power element is used to move the top plate closer to or away from the positioning plate. The top plate is used to abut against the bottom of the clamp, and the positioning plate is used to abut against the top of the clamp. One end of the rack is mounted on the top plate, and the gear meshes with the rack. The synchronous shaft passes through the first support plate and the second support plate, and the gear is mounted on the synchronous shaft.

8. The online three-axis automatic dispensing equipment according to claim 1, characterized in that, The adjustment assembly includes a Y-axis slide plate, an X-axis slide plate, and a Z-axis slide plate. The Y-axis slide plate is slidably mounted on the frame, the X-axis slide plate is slidably mounted on the Y-axis slide plate, and the Z-axis slide plate is slidably mounted on the X-axis slide plate. The dispensing assembly is mounted on the Z-axis slide plate.

9. The online three-axis automatic dispensing equipment according to claim 8, characterized in that, It also includes a detection component, which comprises a CCD lens, a light source, a height detector, a needle height sensor, a needle alignment lens, and a controller. The CCD lens is mounted on the Z-axis slide plate and is used to scan the identification code of the workpiece on the fixture, locate the position of the workpiece on the fixture, and detect the glue path of the workpiece after dispensing. The light source is mounted below the CCD lens. The height detector is mounted on the Z-axis slide plate and is used to detect the height of the workpiece on the fixture. The needle height sensor is mounted on the frame and is used to detect the height of the needle tip. The needle alignment lens is mounted on one side of the needle height sensor and is used to detect the position of the needle tip. The CCD lens, light source, height detector, needle height sensor, and needle alignment lens are all signal-connected to the controller.

10. The online three-axis automatic dispensing equipment according to claim 1, characterized in that, It also includes a weighing device mounted on the frame, the weighing device being used to weigh the glue.

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