Online three-axis type automatic dispensing equipment

Abstract

The invention relates to online three-axis type automatic dispensing equipment which comprises a rack, a clamp, a feeding assembly, an adjusting assembly, a dispensing assembly and a frictioning assembly, and the feeding assembly is used for conveying the clamp; the dispensing assembly comprises a needle head; the glue wiping assembly comprises 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 glue wiping belt, the second winding shaft and the third winding shaft are arranged at the two ends of the first winding shaft respectively, and the fourth winding shaft is arranged between the first winding shaft and the third winding shaft; the adhesive tape is wound on the first winding shaft, the second winding shaft, the third winding shaft and the fourth winding shaft in sequence, the first clamping block and the second clamping block are arranged on the two sides of the adhesive tape in a sliding mode respectively, and the adhesive tape abuts against the outer side of the needle head along with opposite sliding of the first clamping block and the second clamping block. According to the dispensing equipment, the first clamping block and the second clamping block slide oppositely to enable the adhesive wiping tape to abut against the outer side of the needle head, so that residual glue on the outer side of the needle head and the glue outlet is removed, and the cleaning effect is good.

Description

Technical Field

[0001] The present invention relates to the technical field of glue dispensing equipment, in particular to an online three-axis automatic glue dispensing equipment. Background Art

[0002] In the production process of electronic products, glue needs to be applied to specific locations on the PCB board before the electronic components are bonded to the PCB board. For example, Chinese patent publication number CN116020701A discloses an online 3D guided dispensing machine and its control method, which includes a frame and a dual-channel Y-axis motion assembly, an X-axis motion assembly 1, an X-axis motion assembly 2, a Z-axis motion assembly 1, a Z-axis motion assembly 2, a 3D guide assembly, a dispensing assembly, and a glue eraser weighing assembly disposed on the frame; the glue eraser weighing assembly is used to weigh the amount of glue dispensed and clean the dispensing head; the glue eraser weighing assembly includes a glue eraser assembly and a weighing device; the glue eraser assembly includes a glue eraser block, a tape is disposed on the top of the glue eraser block, and the two ends of the tape are respectively connected to a take-up roller and a discharge roller, which are disposed on the left and right sides of the glue eraser block, and the take-up roller is driven by a seventh motor; the glue eraser block, the take-up roller, and the discharge roller are all mounted on a glue eraser fixing plate. However, the tape can only clean the glue outlet of the glue head, but cannot clean the residual glue on the outside of the glue head, so the cleaning is not thorough enough. Summary of the Invention

[0003] Based on this, it is necessary to provide an online three-axis automatic dispensing equipment to address the above problems.

[0004] 14. The adhesive dispensing device of claim 13, wherein the guide rail is mounted on a track, wherein the guide rail is mounted on a track, and the track is moved along the track to move the adhesive tape to the track.

[0005] In one embodiment, the eraser assembly further includes a first protrusion and a second protrusion, the first protrusion is inserted into the first clamping block, the second protrusion is inserted into the second clamping block, and one side of the first protrusion and one side of the second protrusion respectively abut against one side of the eraser tape.

[0006] In one embodiment, the eraser assembly also includes a first transition shaft, a second transition shaft, a third clamp and a fourth clamp. The first transition shaft is arranged on one side of the first winding shaft, and the second transition shaft is arranged on one side of the fourth winding shaft. The eraser tape is 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 in sequence. The third clamp and the fourth clamp are respectively slidably arranged on both sides of the eraser tape. As the third clamp and the fourth clamp slide toward each other, the eraser tape abuts against the outer side of the needle.

[0007] In one embodiment, the eraser assembly further includes a clamping block power element, a discharge 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 toward each other synchronously; the receiving roller and the discharge roller are respectively rotatably connected to the frame, one end of the eraser tape is connected to the discharge roller, and the other end is connected to the first winding shaft, one end of the eraser tape 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 installed 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 connected to each of the first conveyor wheels in sequence. 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 connected to each of the second conveyor wheels in sequence. 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 is slid 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 the handwheel 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, the limiting power element is used to drive the limiting block to rise and fall, the limiting block is used to abut one end of the clamp, the limit sensor is mounted on one side of the limiting power element, and the limit sensor is used to detect the position of the clamp.

[0010] In one embodiment, it also includes a jacking assembly, which includes a positioning plate, a jacking power element, a top plate, a rack, a gear and a synchronization shaft. There are two of the positioning plates, the jacking power element, the top plate, the rack and the gear, and they correspond one to one. The first support plate and the second support plate are both installed with the positioning plate, the jacking power element, the top plate, the rack and the gear. The lifting power element is used to drive the top plate close to or away from the positioning plate. The top plate is used to abut the bottom of the clamp, and the positioning plate is used to abut the top of the clamp; one end of the rack is installed on the top plate, the gear engages with the rack, the synchronization shaft passes through the first support plate and the second support plate, and the gear is installed on the synchronization shaft.

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

[0012] In one embodiment, a detection component is further included, which includes a CCD lens, a light source, a height detector, a needle height sensor, a needle alignment lens and a controller. The CCD lens is installed on the Z-axis slide, and the CCD lens 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 installed below the CCD lens; the height detector is installed on the Z-axis slide, and the height detector is used to detect the height of the workpiece on the fixture; the needle height sensor is installed on the frame, and the needle height sensor is used to detect the height of the needle head; the needle alignment lens is installed on one side of the needle height sensor, and the needle alignment lens is used to detect the position of the needle head; the CCD lens, light source, height detector, needle height sensor and needle alignment lens are all connected to the controller signal.

[0013] In one embodiment, a weighing device is further included, wherein the weighing device is installed on the frame and is used to weigh the glue.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] The online three-axis automatic dispensing device of the present invention allows the wiping tape to abut against the outer side of the needle through the relative sliding of the first clamping block and the second clamping block, thereby removing glue remaining on the outer side of the needle and the glue outlet, and has a good cleaning effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic structural diagram of an online three-axis automatic dispensing device according to an embodiment of the present invention;

[0017] Figure 2for Figure 1 The schematic diagram of the structure of the online three-axis automatic dispensing equipment shown, wherein the hood is not shown;

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

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

[0020] Figure 5 for Figure 2 Enlarged view of circle B.

[0021] The meanings of the numbers in the accompanying drawings are:

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

[0023] 10. Frame; 11. Machine platform; 12. Machine cover; 121. Feed port; 13. Bracket; 14. Base plate; 20. Clamp; 30. Feed assembly; 31. First support plate; 32. First conveyor wheel; 33. First conveyor belt; 34. Second support plate; 35. Transmission rod; 36. Handwheel; 37. Position limiting power element; 38. Position limiting block; 39. Position limiting sensor; 40. Adjustment assembly; 41. Y-axis slide; 42. X-axis slide; 43. Z-axis slide; 44. Y-axis adjustment power element; 45. X-axis adjustment power element;

[0024] 50. Glue dispensing assembly; 51. Needle; 52. Glue dispensing valve; 60. Glue erasing 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 erasing tape; 68. First boss; 69. Second boss; 61a. First transition shaft; 62a. Second transition shaft; 63a. Third clamping block; 64a. Fourth clamping block; 65a. Unwinding roller; 66a. Rewinding 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. Altimeter detector; 94. Needle height sensor; 95. Needle alignment lens. DETAILED DESCRIPTION

[0025] To make the above-mentioned objects, features, and advantages of the present invention more readily apparent, specific embodiments of the present invention are described in detail below with reference to the accompanying drawings. The following description sets forth numerous specific details to facilitate a full understanding of the present invention. However, the present invention can be implemented in many other ways than those described herein, and those skilled in the art may make similar modifications without departing from the scope of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0026] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like to indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[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 the technical features being referred to. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "plurality" means at least two, such as two, three, etc., unless otherwise specifically defined.

[0028] In the present invention, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection; direct connection, or indirect connection through an intermediate medium; internal communication between two components, or interaction between two components, unless otherwise specified. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0029] In the present invention, unless otherwise expressly specified or limited, when a first feature is "above" or "below" a second feature, it may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediary. Furthermore, when a first feature is "above," "above," or "above" a second feature, it may mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is at a higher level than the second feature. When a first feature is "below," "below," or "below" a second feature, it may mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature is at a lower level than the second feature.

[0030] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be an intermediate element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be an intermediate 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 implementation methods.

[0031] Please refer to Figures 1 to 5 , an online three-axis automatic dispensing device 100 of an embodiment of the invention includes a frame 10, a fixture 20, a feeding assembly 30, an adjusting assembly 40, a dispensing assembly 50 and a glue erasing assembly 60, wherein the feeding assembly 30 is mounted on the frame 10, and the feeding assembly 30 is used to transport the fixture 20; the adjusting assembly 40 is mounted on the frame 10, the dispensing assembly 50 is mounted on the adjusting assembly 40, and the dispensing assembly 50 includes a needle 51; the glue erasing 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 The clamping block 66 and the wiping tape 67 are respectively provided at the two ends of the first winding shaft 61, and the third winding shaft 63 is provided between the first winding shaft 61 and the third winding shaft 63. The 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 provided on both sides of the wiping tape 67. As the first clamping block 65 and the second clamping block 66 slide toward each other, the wiping tape 67 abuts against the outside of the needle 51. This online three-axis automatic dispensing device 100 allows the wiping tape 67 to abut against the outside of the needle 51 by the first clamping block 65 and the second clamping block 66 sliding toward each other, thereby removing the glue remaining on the outside of the needle 51 and the glue outlet, achieving an excellent cleaning effect.

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

[0033] like Figure 2 and Figure 3As shown, the feeding assembly 30 is installed on the frame 10, and the feeding assembly 30 is used to transport the clamp 20, and the clamp 20 is used to carry the workpiece. The feeding assembly 30 includes a first support plate 31, a first transmission wheel 32, a first conveyor belt 33, a second support plate 34, a second transmission wheel (not shown) and a second conveyor belt (not shown). The first support plate 31 is installed on the machine 11 of the frame 10. There are multiple first transmission 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 transmission wheels 32; the second support plate 34 is slidably installed on the machine 11 of the frame 10. There are multiple second transmission wheels, each of which is pivotally connected to the second support plate. 34, the second conveyor belt is connected to each second conveyor wheel in sequence, and the first conveyor belt 33 cooperates with the second conveyor belt to convey the clamp 20; the second support plate 34 is slidably arranged on the machine 11, and the distance between the second support plate 34 and the first support plate 31 is adjusted to adapt to clamps 20 of different sizes; optionally, the first support plate 31 and the second support plate 34 are both provided with a makeshift groove (not marked in the figure); further, the feeding assembly 30 also includes a first motor (not marked in the figure) and a second motor (not marked in the figure), the first motor is used to drive the first conveyor belt 33 for transmission, and the second motor is used to drive the second conveyor belt for transmission.

[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, wherein the guide rail and the support are both mounted on the machine 11 of the frame 10, the second support plate 34 is slidably mounted on the guide rail, the transmission rod 35 sequentially passes through the first support plate 31, the second support plate 34 and the support, and the handwheel 36 is mounted on one end of the transmission rod 35, and the handwheel 36 is used to drive the transmission rod 35 to rotate, thereby driving the second support plate 34 to slide; optionally, the transmission rod 35 is a screw; further, there are two supports and two transmission rods 35, and the two transmission rods 35 are connected to the synchronous belt through a synchronous wheel to achieve synchronous rotation. When in use, according to the size of the clamp 20, the transmission rod 35 is rotated by rotating the handwheel 36, thereby driving the second support plate 34 to slide, thereby 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 3As 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. The limiting power element 37 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. The limiting sensor 39 is used to detect the position of the clamp 20; when the limit 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 component 40 is installed on the frame 10, and the adjustment component 40 includes a Y-axis slide 41, an X-axis slide 42 and a Z-axis slide 43. The Y-axis slide 41 is slidably arranged on the frame 10, the X-axis slide 42 is slidably arranged on the Y-axis slide 41, and the Z-axis slide 43 is slidably arranged on the X-axis slide 42; optionally, the Y-axis slide 41 is slidably arranged on the bracket 13; further, the adjustment component 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 marked in the figure), the Y-axis adjustment power element 44 is used to drive the Y-axis slide 41 to slide, the X-axis adjustment power element 45 is used to drive the X-axis slide 42 to slide, and the Z-axis adjustment power element is used to drive the Z-axis slide 43 to slide.

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

[0038] like Figure 5As shown, the eraser 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 eraser tape 67. The second winding shaft 62 and the third winding shaft 63 are respectively arranged at the two ends of the first winding shaft 61, and the fourth winding shaft 64 is arranged between the first winding shaft 61 and the third winding shaft 63. The eraser 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 arranged on both sides of the eraser tape 67. As the first clamping block 65 and the second clamping block 66 slide toward each other, the eraser tape 67 abuts against the outside of the needle 51, thereby removing the glue remaining on the outside of the needle 51 and the glue outlet. Optionally, the second winding shaft 62 and the third winding shaft 63 are horizontally arranged on the substrate 14 along the X-axis direction, and the first winding shaft 61 and the fourth winding shaft 64 are horizontally arranged on the substrate 14 along the X-axis direction; the cleaning 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 in a "mouth" shape; further, the cleaning tape 67 is a dust-free cloth tape.

[0039] In one embodiment, the eraser assembly 60 further includes a first protrusion 68 and a second protrusion 69, wherein 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, and one side of the first protrusion 68 and one side of the second protrusion 69 respectively abut against one side of the eraser tape 67; optionally, one side of the first protrusion 68 is protruded from one side of the first clamping block 65, and one side of the second protrusion 69 is protruded from one side of the second clamping block 66; further, both the first protrusion 68 and the second protrusion 69 are protruded from one side of the second clamping block 66; Made of soft material, in one embodiment, the first protrusion 68 and the second protrusion 69 are both sponge columns; when erasing glue, the needle 51 moves between the first clamping block 65 and the second clamping block 66, and the first clamping block 65 and the second clamping block 66 synchronously approach each other, 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, so that the corresponding erasing tape 67 erases the glue on the outside of the needle 51 and the glue outlet.

[0040] like Figure 5As shown, the eraser assembly 60 also 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 arranged on one side of the first winding shaft 61, and the second transition shaft 62a is arranged on one side of the fourth winding shaft 64. The eraser tape 67 is wound around the first transition shaft 61a, the first winding shaft 61, the second winding shaft 62, the third winding shaft 63, the fourth winding shaft 64 and the second transition shaft 62a in sequence. The third clamping block 63a and the fourth clamping block 64a are respectively slidably arranged on both sides of the eraser tape 67. As the third clamping block 63a and the fourth clamping block 64a slide toward each other, the eraser tape 67 abuts against the outer side of the needle 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 between the second winding shaft 62 and the third winding shaft 63 and the straight line between the first transition shaft 61a and the first winding shaft 61 form a "T" shape. As a result, 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 fully removed. Furthermore, the eraser assembly 60 also includes a third boss (not labeled) and a fourth boss (not labeled). The third boss is inserted into the third clamping block 63a, and the fourth boss is inserted into the fourth clamping block 64a. The third boss, the fourth boss, and the first boss 68 have the same structure and will not be described in detail below.

[0041] In one embodiment, the eraser assembly 60 further includes a clamping block power element (not shown), a feeding roller 65a and a receiving roller 66a, wherein the clamping block power element is used to drive the first clamping block 65 and the second clamping block 66 to slide toward each other synchronously; 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 eraser tape 67 is connected to the feeding roller 65a, and the other end is connected to the first winding shaft 61, one end of the eraser tape 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 eraser tape 67 is connected to the feeding roller 65a, and the other end is connected to the first transition shaft 61a, one end of the eraser tape 67 is connected to the receiving roller 66a, and the other end is connected to the second transition shaft 62a. Furthermore, the eraser assembly 60 also includes a clamping power element (not shown), a discharging power element (not labeled), and a collecting power element (not labeled). The clamping power element is used to drive the third clamping block 63a and the fourth clamping block 64a to slide synchronously toward each other, the discharging power element is used to rotate the discharging roller 65a, and the collecting power element is used to rotate the collecting roller 66a. The eraser assembly 60 also includes a collection cylinder 67a mounted on the base plate 14 for collecting waste rubber discharged from the needle 51.

[0042] During glue erasing, the needle 51 moves between the first and second clamping blocks 65, 66. The clamping block power element drives the first and second clamping blocks 65, 66 synchronously toward the needle 51, thereby driving the first and second protrusions 68, 69 to squeeze the sides of the needle 51 and force the first and second protrusions 68, 69 to deform, causing the corresponding eraser tape 67 to wrap around the needle 51. The needle 51 then rises, causing the eraser tape 67 to erase the glue on the outside of the needle 51 and the glue outlet. The needle 51 then moves between the third and fourth clamping blocks 63a, 64a. The third and fourth clamping blocks 63a, 64a synchronously approach the needle 51, and the operation is similar to that of the first and second clamping blocks 65, 66, completing the cleaning of the needle 51. Finally, the unwinding roller 65a and the receiving roller 66a rotate synchronously, completing the replacement of the eraser tape.

[0043] like Figure 3 As shown, the online three-axis automatic dispensing equipment 100 also includes a lifting assembly 70, which includes a positioning plate 71, a lifting power element 72, a top plate 73, a rack 74, a gear 75 and a synchronization shaft 76. The positioning plate 71, the lifting power element 72, the top plate 73, the rack 74 and the gear 75 are two in number and correspond one to one. The first support plate 31 and the second support plate 34 are both equipped with the positioning plate 71, the lifting power element 72, the top plate 73, the rack 74 and the gear 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 fixture 20, and the positioning plate 71 is used to abut the top of the fixture 20; when dispensing glue, the fixture 20 is fixed by the top plate 73 and the positioning plate 71, and the fixture 20 is lifted off the first conveyor belt 33 and the second conveyor belt by the top plate 73, and the other fixture 20 can be conveyed to other stations via the first conveyor belt 33 and the second conveyor belt, thereby realizing synchronous processing. One end of the rack 74 is mounted on the top plate 73, the gear 75 engages with the rack 74, the synchronization shaft 76 passes through the first support plate 31 and the second support plate 34, and the gear 75 is mounted on the synchronization shaft 76. The synchronization shaft 76, the gear 75 and the rack 74 cooperate to realize the synchronous lifting of the two top plates 73. Optionally, one side of the top plate 73 is accommodated in a clearance 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, and is used to weigh glue; before dispensing each workpiece, the needle 51 needs to be calibrated, and the needle 51 moves to the collecting tube 67a, and the needle 51 discharges glue into the collecting tube 67a several times, so that the needle 51 can discharge glue smoothly, and then the needle 51 moves to the glue wiping station for glue wiping. After glue wiping, the needle 51 moves to the weighing device 80 again, and the needle 51 discharges glue onto the weighing device 80. The weight of the glue discharge is obtained by the data measured by the weighing device 80, and the calibration of the needle 51 is completed when the weight of the glue discharge is within the specified range; 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 lens 95 and a controller (not shown). The CCD lens 91 is installed on the Z-axis slide 43. The CCD lens 91 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 installed below the CCD lens 91; the height detector 93 is installed on the Z-axis slide 43. The height detector 93 is used to detect the height of the workpiece on the fixture 20. Since the height of each workpiece and the fixture 20 will be different, 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 to 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 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 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 by signal. The height detector 93 detects the height of the workpiece on the fixture 20 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 Z-axis slide 43 drives the needle 51 to slowly abut against the needle height sensor 94, and the actual distance moved by the Z-axis slide 43 is recorded. The difference between the actual distance moved by the Z-axis slide 43 and the preset distance moved by the Z-axis slide 43 is the height difference of the needle 51. The needle 51 moves to the needle alignment lens 95, which detects the actual position of the needle 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 and corrects the Z-axis direction based on the height difference between the workpiece and the height difference between the needle 51 to prevent the needle 51 from hitting the workpiece; the controller recalculates and corrects the X-axis and Y-axis directions based on the deviation of the needle 51 in the X-axis and Y-axis directions to improve positioning accuracy.

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

[0047] Feeding: According to the size of the fixture 20, adjust the distance between the second support plate 34 and the first support plate 31; the fixture 20 with the workpiece enters the frame 10 from the feed port 121, and is synchronously conveyed toward 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 one end of the fixture 20; then, the lifting power element 72 drives the top plate 73 to rise toward the positioning plate 71, so that the top plate 73 drives the fixture 20 to rise until the top plate 73 abuts the positioning plate 71, thereby fixing the position of the fixture 20.

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

[0049] Calibration of needle 51: Before dispensing glue on each workpiece, the needle 51 needs to be calibrated. The needle 51 moves to the collecting tube 67a. The needle 51 discharges glue into the collecting tube 67a several times. After the needle 51 discharges glue smoothly, the needle 51 moves to the glue wiping station for glue wiping. After glue wiping, the needle 51 moves to the weighing device 80 again. The needle 51 discharges glue onto the weighing device 80. The weight of the glue discharge is obtained through the data measured by the weighing device 80. If the weight of the glue discharge 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.

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

[0051] Quality inspection: After the glue is applied, the CCD lens 91 detects the glue dispensing conditions according to the glue path, such as whether there is any glue leakage.

[0052] The online three-axis automatic dispensing device 100 of the present invention makes the wiping tape 67 abut against the outside of the needle 51 as the first clamping block 65 and the second clamping block 66 slide toward each other, thereby removing the glue remaining on the outside of the needle 51 and the glue outlet, and has a good cleaning effect.

[0053] The technical features of the above-mentioned embodiments can be combined arbitrarily. In order to make the description concise, not all possible combinations of the technical features in the above-mentioned 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 above-described embodiments merely illustrate several implementations of the present invention, and while their descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent. It should be noted that a person skilled in the art would be able to make numerous variations and improvements without departing from the spirit of the present invention, all of which fall within the scope of protection of the present invention. Therefore, the scope of protection of the patent for this invention shall be determined by the appended claims.

Claims

1. An online three-axis automatic dispensing equipment, characterized in that: The cam is mounted on a linking mechanism, and the linking mechanism comprises a first clamping block, a second clamping block, a second clamping block and a rubbing tape. The second clamping block and the third clamping block are respectively arranged at two ends of the first winding shaft, and the fourth winding shaft is arranged between the first winding shaft and the third winding shaft. The rubbing tape is wound around the first winding shaft, the second winding shaft, the third winding shaft and the fourth winding shaft in sequence. The first clamping block and the second clamping block are respectively slidably arranged on both sides of the rubbing tape. As the first clamping block and the second clamping block slide toward each other, the rubbing tape abuts against the outer side of the needle.

2. The online three-axis automatic dispensing equipment according to claim 1 is characterized in that: The eraser 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 eraser tape.

3. The online three-axis automatic dispensing equipment according to claim 1 is characterized in that: The eraser assembly also includes a first transition shaft, a second transition shaft, a third clamp and a fourth clamp. The first transition shaft is arranged on one side of the first winding shaft, and the second transition shaft is arranged on one side of the fourth winding shaft. The eraser tape is 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 in sequence. The third clamp and the fourth clamp are respectively slidably arranged on both sides of the eraser tape. As the third clamp and the fourth clamp slide toward each other, the eraser tape abuts against the outer side of the needle.

4. The online three-axis automatic dispensing equipment according to claim 1, characterized in that: The eraser assembly also 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 toward each other synchronously; the receiving roller and the feeding roller are respectively rotatably connected to the frame, one end of the eraser tape is connected to the feeding roller, and the other end is connected to the first winding shaft, one end of the eraser tape 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 is characterized in that: The feeding assembly includes a first support plate, a first conveying wheel, a first conveyor belt, a second support plate, a second conveying wheel and a second conveyor belt. The first support plate is installed on the frame. There are multiple first conveying wheels, each of which is pivotally connected to the first support plate. The first conveyor belt is sequentially connected to each of the first conveying wheels; the second support plate is slidably mounted on the frame. There are multiple second conveying wheels, each of which is pivotally connected to the second support plate. The second conveyor belt is sequentially connected to each of the second conveying 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 also includes a guide rail, a support, a transmission rod and a handwheel, the guide rail and the support are both installed on the frame, the second support plate is slid 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 installed at one end of the transmission rod, and the handwheel 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 installed at the first support plate, the limiting power element is used to drive the limiting block to rise and fall, the limiting block is used to abut one end of the clamp, the limit sensor is installed on one side of the limiting power element, and the limit sensor 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 jacking assembly, which includes a positioning plate, a jacking power element, a top plate, a rack, a gear and a synchronization shaft. There are two of the positioning plates, the jacking power element, the top plate, the rack and the gear, and they correspond one to one. The first support plate and the second support plate are both installed with the positioning plate, the jacking power element, the top plate, the rack and the gear. The jacking power element is used to drive the top plate close to or away from the positioning plate, the top plate is used to abut the bottom of the fixture, and the positioning plate is used to abut the top of the fixture; one end of the rack is installed on the top plate, the gear engages with the rack, the synchronization shaft passes through the first support plate and the second support plate, and the gear is installed on the synchronization shaft.

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

9. The online three-axis automatic dispensing equipment according to claim 8, characterized in that: It also includes a detection component, which includes a CCD lens, a light source, a height detector, a needle height sensor, a needle alignment lens and a controller. The CCD lens is installed on the Z-axis slide. The CCD lens 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 installed below the CCD lens; the height detector is installed on the Z-axis slide. The height detector is used to detect the height of the workpiece on the fixture; the needle height sensor is installed on the frame. The needle height sensor is used to detect the height of the needle head; the needle alignment lens is installed on one side of the needle height sensor. The needle alignment lens is used to detect the position of the needle head; the CCD lens, light source, height detector, needle height sensor and needle alignment lens are all connected to the controller signal.

10. The online three-axis automatic dispensing equipment according to claim 1, characterized in that: The machine also includes a weighing device, which is installed on the frame and is used to weigh the glue.

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