Circuit board dispensing device

Abstract

The utility model relates to the technical field of circuit board processing, in particular to a circuit board dispensing device which comprises a workbench and channel steel arranged on the two sides of the workbench. The portal frame is slidably mounted on the two steel channels, the portal frame comprises supporting arms and a suspension arm, the two supporting arms are slidably mounted in the steel channels on the two sides of the workbench respectively, and the suspension arm is slidably mounted on the two supporting arms jointly; the mounting frame is mounted in a sliding groove formed in the suspension arm in a sliding manner, and a glue dripping mechanism is mounted on the mounting frame; the water dropper assembly is mounted on the mounting frame, the water dropper assembly comprises a cutting rod, the cutting rod is rotatably mounted on the mounting frame, a tangential block is fixedly mounted at the bottom end of the cutting rod, a plurality of mounting grooves are uniformly formed in the outer side wall of the tangential block, electric push rods are mounted in the mounting grooves, and distance plates are fixedly mounted at the telescopic ends of the electric push rods. The circuit board dispensing device provided by the utility model has the advantage of more accurate and efficient dispensing.

Description

Technical Field

[0001] The utility model relates to the technical field of circuit board processing, in particular to a circuit board dispensing device. Background Art

[0002] Circuit board dispensing is mostly applied to the structurally weak areas of the circuit board, such as the solder joint structures of chips and circuit boards, as well as the solder joint structures of some components, aiming to reduce the cracking of solder joints caused by vibration. At the same time, the solder joints completely covered by the colloid can also effectively prevent short-circuit phenomena caused by moisture. Most of the dispensing heads of the existing automatic circuit board dispensing machines for contacting the circuit board for dispensing are single fixed types and cannot be flexibly switched according to the size of the dispensing area, resulting in uneven dispensing and low dispensing efficiency. Therefore, it is necessary to provide a new circuit board dispensing device to solve the above technical problems. Content of the Utility Model

[0003] To solve the above technical problems, the utility model provides a circuit board dispensing device with more accurate and efficient dispensing.

[0004] The circuit board dispensing device provided by the utility model includes: a workbench, and channel steels arranged on both sides of the workbench;

[0005] A platen, fixedly installed in the middle of the upper surface of the workbench;

[0006] A gantry, slidably installed on the two channel steels. The gantry includes support arms and a suspension arm. The two support arms are respectively slidably installed in the channel steels on both sides of the workbench, and a suspension arm is slidably installed on the two support arms together;

[0007] A mounting frame, slidably installed in the chute opened on the suspension arm, and a dispensing mechanism is installed on the mounting frame;

[0008] A dispensing head assembly, installed on the mounting frame and located outside the dispensing mechanism. The dispensing head assembly includes a cutting rod, the cutting rod is rotatably installed on the mounting frame, and a tangential block is fixedly installed at the bottom end of the cutting rod. A plurality of mounting grooves are uniformly opened on the outer side wall of the tangential block, and electric push rods are installed in the plurality of mounting grooves. The telescopic ends of the plurality of electric push rods are fixedly installed with distance plates. The bottom ends of the conversion sleeves on any one of the plurality of distance plates are communicated with a glue applying part, and the bottom ends of the conversion sleeves on the remaining distance plates are communicated with dispensing heads of different specifications. A driven gear is sleeved on the outer side wall of the cutting rod, a servo motor is installed on the mounting frame, and a driving gear is fixedly sleeved at the output end of the servo motor, and the driving gear meshes with the driven gear.

[0009] Preferably, a first lead screw for driving the support arm to slide along the channel steel is rotatably installed inside the channel steel, and a first motor for driving the first lead screw to rotate is fixedly installed at one end of the channel steel.

[0010] Preferably, a second lead screw for driving the suspension arm to slide along the support arm is installed inside the support arm, and a second motor for driving the second lead screw to rotate is fixedly installed at the top end of the support arm.

[0011] Preferably, a third lead screw for driving the mounting bracket to slide along the chute is rotatably installed inside the chute of the suspension arm, and a third motor for driving the third lead screw to rotate is installed on the suspension arm.

[0012] Preferably, the dispensing mechanism includes a dispensing cylinder, the dispensing cylinder is embedded on the mounting bracket, and a dispensing solenoid valve is communicated with the bottom end of the dispensing cylinder. A transfer pipe is installed at the glue outlet end of the dispensing solenoid valve, and the transfer pipe is inserted and matched with the conversion sleeve. A glue injection piston rod is slidably installed inside the dispensing cylinder, and a rubber sealing plug is threadedly installed at the piston end of the glue injection piston rod.

[0013] Preferably, a limiting end plate is fixedly installed at the top of the glue injection piston rod. Guide rods are symmetrically installed on the mounting bracket. A guide hole slidably matched with the guide rod is opened on the limiting end plate. A threaded rod is fixedly installed at the top end of the limiting end plate, and a number of counterweight blocks are threadedly installed on the threaded rod.

[0014] Preferably, the glue applying member includes a connecting pipe, the connecting pipe is threadedly connected with the conversion sleeve, a glue applying box is communicated with the bottom end of the connecting pipe, and a glue applying roller is rotatably installed inside the glue applying box.

[0015] Preferably, through holes are formed through the middle parts of the cutting rod and the tangential block. A blower is installed at the top end of the through hole, and an electric heating mesh is embedded at the bottom end of the through hole.

[0016] Compared with the related art, the circuit board dispensing device provided by the present utility model has the following beneficial effects:

[0017] The present utility model provides a circuit board dispensing device. By arranging a drip head assembly on the mounting bracket, the drip head assembly can cooperate with the transfer pipe of the dispensing mechanism by using the cutting rod, driven gear, tangential block, electric push rod, fixed-distance plate, conversion sleeve, drip head, glue applying member, connecting pipe, glue applying box, glue applying roller, servo motor and driven gear, and can reasonably select a drip head according to the size of the specific dispensing area;

[0018] By arranging a glue injection piston rod in the dispensing cylinder, and arranging a limiting end plate and counterweight blocks at the top of the glue injection piston rod, automatic constant-pressure dispensing can be realized, and automatic dispensing can be realized in cooperation with the dispensing solenoid valve;

[0019] Through holes are drilled through the cutting rod and the tangential block, and a blower and an electric heating grid are installed in the through holes, which can accelerate the curing after dispensing and improve the dispensing efficiency. Description of the Drawings

[0020] Figure 1 FIG. 6 is a schematic structural view of a preferred embodiment of the circuit board dispensing device provided by the present invention;

[0021] Figure 2 FIG. 7 is a schematic structural view of the mounting bracket provided by the present invention with a glue-dropping mechanism installed thereon;

[0022] Figure 3 FIG. 8 is a schematic structural view of the mounting bracket provided by the present invention with a dropper assembly installed thereon;

[0023] Figure 4 FIG. 9 is a schematic cross-sectional structural view of the glue-dropping mechanism and the dropper assembly provided by the present invention;

[0024] FIG. 5 is a schematic structural view of the glue-applying member provided by the present invention. Detailed Description of the Embodiment

[0025] In order to make the objectives, technical solutions and advantages of the present invention clearer and more understandable, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0026] The following describes in detail the specific implementation of the present invention with reference to specific embodiments.

[0027] Please refer to Figures 1 to 5 , a circuit board dispensing device provided by an embodiment of the present invention, the circuit board dispensing device includes: a workbench 1, and channel steels 2 arranged on both sides of the workbench 1; a table board 3 fixedly installed in the middle of the upper surface of the workbench 1;

[0028] A gantry 4 slidably installed on two channel steels 2, the gantry 4 includes a support arm 41 and a suspension arm 42, the two support arms 41 are respectively slidably installed in the channel steels 2 on both sides of the workbench 1, and a suspension arm 42 is slidably installed on the two support arms 41 together;

[0029] A mounting bracket 5 slidably installed in a chute 401 opened on the suspension arm 42, and a glue-dropping mechanism 6 is installed on the mounting bracket 5;

[0030] The drip head assembly 7 is installed on the mounting bracket 5 and is located outside the glue dispensing mechanism 6. The drip head assembly 7 includes a cutting rod 71 which is rotatably installed on the mounting bracket 5. A tangential block 72 is fixedly installed at the bottom end of the cutting rod 71. A plurality of mounting grooves 701 are evenly formed on the outer side wall of the tangential block 72. Electric push rods 73 are installed in the plurality of mounting grooves 701. Fixed distance plates 74 are fixedly installed at the telescopic ends of the plurality of electric push rods 73. Conversion sleeves 75 are embedded at the ends of the plurality of fixed distance plates 74 facing away from the electric push rods 73. Among them, the bottom end of the conversion sleeve 75 on any one of the plurality of fixed distance plates 74 is communicated with a glue applying member 77, and the bottom ends of the conversion sleeves 75 on the remaining fixed distance plates 74 are communicated with glue dispensing heads 76 of different specifications. A driven gear 711 is sleeved on the outer side wall of the cutting rod 71. A servo motor 78 is installed on the mounting bracket 5. A driving gear 781 is fixedly sleeved at the output end of the servo motor 78. The driving gear 781 meshes with the driven gear 711.

[0031] It should be noted that during use, the circuit board is placed in the area of the table board 3 for positioning, and then the gantry 4 is controlled to move to drive the glue dispensing mechanism 6 to perform glue dispensing on the circuit board according to the set program. During the glue dispensing process, according to the size of the glue dispensing area, the servo motor 78 is driven to drive the cutting rod 71 to rotate by the meshing of the driving gear 781 and the driven gear 711, so as to switch different glue dispensing heads 76 to the glue dispensing mechanism 6 for glue dispensing. When switching, first control the electric push rod 73 to push the fixed distance plate 74 downward until the conversion sleeve 75 does not interfere with the glue dispensing mechanism 6 during rotation, and then switch different specifications (mainly different aperture diameters for glue dispensing here) of the glue dispensing heads 76 to align with the glue dispensing mechanism 6, and then control the electric push rod 73 to contract to drive the conversion sleeve 75 to dock with the glue dispensing mechanism 6, and use different glue dispensing heads 76 to perform precise glue dispensing.

[0032] Among them, the glue applying member 77 includes a connecting pipe 771 which is threadedly connected to the conversion sleeve 75. The bottom end of the connecting pipe 771 is communicated with a glue applying box 772. A glue applying roller 773 is rotatably installed in the glue applying box 772. In this way, during glue dispensing, when it is necessary to perform glue coating and sealing on the circuit board, the glue applying member 77 can be switched to communicate with the glue dispensing mechanism 6, so as to realize large-area glue coating operation.

[0033] In the embodiment of the present invention, please refer to Figure 1 , a lead screw one 21 for driving the support arm 41 to slide along the channel steel 2 is rotatably installed in the channel steel 2. A motor one 22 for driving the lead screw one 21 to rotate is fixedly installed at one end of the channel steel 2;

[0034] A lead screw two 411 for driving the suspension arm 42 to slide along the support arm 41 is installed in the support arm 41. A motor two 412 for driving the lead screw two 411 to rotate is fixedly installed at the top end of the support arm 41;

[0035] A lead screw three 421 for driving the mounting bracket 5 to slide along the chute 401 is rotatably installed in the chute 401 of the suspension arm 42, and a motor three 422 for driving the lead screw three 421 to rotate is installed on the suspension arm 42.

[0036] It should be noted that when the gantry 4 moves, the motor one 22 drives the lead screw one 21 to rotate, thereby driving the support arm 41 to slide back and forth along the channel steel 2. The motor two 412 drives the lead screw two 411 to rotate, thereby driving the suspension arm 42 to slide up and down along the support arm 41. The motor three 422 drives the lead screw three 421 to rotate, thereby driving the mounting bracket 5 to slide left and right along the chute 401, realizing automatic wire routing for dispensing.

[0037] In an embodiment of the present utility model, please refer to Figure 1 、 Figure 2 and Figure 4 , the dispensing mechanism 6 includes a dispensing cylinder 61. The dispensing cylinder 61 is embedded in the mounting bracket 5, and a dispensing solenoid valve 62 is connected to the bottom end of the dispensing cylinder 61. A transfer pipe 63 is installed at the glue outlet end of the dispensing solenoid valve 62. The transfer pipe 63 is in plug-in fit with the conversion sleeve 75. A glue injection piston rod 65 is slidably installed in the dispensing cylinder 61. A rubber sealing plug 651 is threadedly installed at the piston end of the glue injection piston rod 65;

[0038] It should be noted that when the dispensing mechanism 6 dispenses glue, the glue in the dispensing cylinder 61 is squeezed into the dispensing solenoid valve 62 through the glue injection piston rod 65. Then, after the transfer pipe 63 is docked with the conversion sleeve 75, the glue is controlled to flow out through the dispensing solenoid valve 62 to realize dispensing. When glue needs to be replenished, the rubber sealing plug 651 is unscrewed, and glue is injected into the dispensing cylinder 61 from the glue injection piston rod 65;

[0039] In this embodiment: a limit end plate 66 is fixedly installed at the rod top of the glue injection piston rod 65. Guide rods 64 are symmetrically installed on the mounting bracket 5. The limit end plate 66 is provided with guide holes that are slidably matched with the guide rods 64. A threaded rod 661 is fixedly installed at the top end of the limit end plate 66. A plurality of counterweight blocks 67 are threadedly installed on the threaded rod 661. By setting the cooperation between the limit end plate 66 and the guide rods 64 in this way, the glue injection piston rod 65 can move downward more smoothly. By using the installed counterweight blocks 67, pressure can be applied to the glue injection piston rod 65 to ensure that the glue injection piston rod 65 can move downward stably when there is no external force (overcoming the adhesion of the glue).

[0040] In an embodiment of the present utility model, please refer to Figure 1 、 Figure 4 and Figure 5 , through holes are formed through the middle of the cutting rod 71 and the tangential block 72. A blower 8 is installed at the top end of the through hole, and an electric heating grid 9 is embedded at the bottom end of the through hole.

[0041] It should be noted that when dispensing glue, the blower 8 and the electric heating grid 9 are started synchronously to blow hot air to the glue dispensing position, which can accelerate the curing speed of the glue, thereby improving the quality and efficiency of glue dispensing.

[0042] The working principle of the circuit board glue dispensing device provided by the present utility model is as follows:

[0043] During use, the circuit board is placed in the area of the platen 3 for positioning, and then the gantry 4 is controlled to move to drive the glue dispensing mechanism 6 to dispense glue on the circuit board according to the set program. During the glue dispensing process, according to the size of the glue dispensing area, the servo motor 78 is driven to rotate the cutting rod 71 by the meshing of the driving gear 781 and the driven gear 711, so as to switch different glue dispensing heads 76 to the glue dispensing mechanism 6 for glue dispensing. When switching, first control the electric push rod 73 to push the distance fixing plate 74 downward until the conversion sleeve 75 does not interfere with the glue dispensing mechanism 6 when rotating, and then switch different specifications (mainly different aperture diameters of glue dispensing here) of the glue dispensing heads 76 to align with the adapter tube 63 of the glue dispensing mechanism 6. Then control the electric push rod 73 to contract, driving the conversion sleeve 75 to dock with the adapter tube 63. Then the injection piston rod 65 squeezes the glue in the glue dispensing cylinder 61 into the glue dispensing solenoid valve 62. Then, after the adapter tube 63 is docked with the conversion sleeve 75, the glue is controlled to flow out through the glue dispensing solenoid valve 62 to achieve glue dispensing. When the glue needs to be replenished, unscrew the rubber sealing plug 651 and inject glue into the glue dispensing cylinder 61 from the injection piston rod 65, so as to realize accurate glue dispensing using different glue dispensing heads 76;

[0044] When further dispensing glue, the blower 8 and the electric heating grid 9 are started synchronously to blow hot air to the glue dispensing position, which can accelerate the curing speed of the glue, thereby improving the quality and efficiency of glue dispensing.

[0045] The circuits and controls involved in the present utility model are all prior arts and will not be elaborated herein too much.

[0046] The above are only the embodiments of the present utility model, and do not limit the patent scope of the present utility model accordingly. Any equivalent structure or equivalent process transformation made by using the specification and drawings of the present utility model, or directly or indirectly applied in other related technical fields, shall be equally included in the patent protection scope of the present utility model.

Claims

1. A circuit board dispensing device, comprising: A workbench (1), and channel steels (2) arranged on both sides of the workbench (1); A table board (3), fixedly installed in the middle of the upper surface of the workbench (1); It is characterized in that it further comprises: A gantry (4), slidably installed on the two channel steels (2), the gantry (4) includes a support arm (41) and a suspension arm (42), the two support arms (41) are respectively slidably installed in the channel steels (2) on both sides of the workbench (1), and a suspension arm (42) is slidably installed on the two support arms (41) together; A mounting frame (5), slidably installed in a chute (401) opened on the suspension arm (42), and a dispensing mechanism (6) is installed on the mounting frame (5); A drip head assembly (7), installed on the mounting frame (5) and located outside the dispensing mechanism (6), the drip head assembly (7) includes a cutting rod (71), the cutting rod (71) is rotatably installed on the mounting frame (5), and a tangential block (72) is fixedly installed at the bottom end of the cutting rod (71), a plurality of mounting grooves (701) are evenly opened on the outer side wall of the tangential block (72), electric push rods (73) are installed in the plurality of mounting grooves (701), the telescopic ends of the plurality of electric push rods (73) are fixedly installed with distance fixing plates (74), conversion sleeves (75) are embedded at the ends of the plurality of distance fixing plates (74) facing away from the electric push rods (73), wherein, the bottom end of the conversion sleeve (75) on any one of the plurality of distance fixing plates (74) is communicated with an adhesive applying member (77), and the bottom ends of the conversion sleeves (75) on the remaining distance fixing plates (74) are communicated with drip heads (76) of different specifications, a driven gear (711) is sleeved on the outer side wall of the cutting rod (71), a servo motor (78) is installed on the mounting frame (5), and a driving gear (781) is fixedly sleeved on the output end of the servo motor (78), and the driving gear (781) meshes with the driven gear (711).

2. The dispensing device for circuit boards according to claim 1, wherein, A lead screw one (21) for driving the support arm (41) to slide along the channel steel (2) is rotatably installed in the channel steel (2), and a motor one (22) for driving the lead screw one (21) to rotate is fixedly installed at one end of the channel steel (2).

3. The dispensing device for circuit boards according to claim 1, wherein, A lead screw two (411) for driving the suspension arm (42) to slide along the support arm (41) is installed in the support arm (41), and a motor two (412) for driving the lead screw two (411) to rotate is fixedly installed at the top end of the support arm (41).

4. The wire bonding machine according to claim 1, wherein, A lead screw three (421) for driving the mounting frame (5) to slide along the chute (401) is rotatably installed in the chute (401) of the suspension arm (42), and a motor three (422) for driving the lead screw three (421) to rotate is installed on the suspension arm (42).

5. The wire bonding device according to claim 1, characterized in that, The dispensing mechanism (6) includes a dispensing cylinder (61), the dispensing cylinder (61) is fitted on the mounting bracket (5), and the bottom end of the dispensing cylinder (61) is communicated with a dispensing solenoid valve (62). A transfer pipe (63) is installed at the glue outlet end of the dispensing solenoid valve (62), and the transfer pipe (63) is in plug-in fit with a conversion sleeve (75). A glue injection piston rod (65) is slidably installed in the dispensing cylinder (61), and a rubber sealing plug (651) is threadedly installed at the piston end of the glue injection piston rod (65).

6. The dispensing device for circuit boards according to claim 5, wherein, A limit end plate (66) is fixedly installed at the rod top of the glue injection piston rod (65). Guide rods (64) are symmetrically installed on the mounting bracket (5). The limit end plate (66) is provided with a guide hole that is slidably fitted with the guide rod (64). A threaded rod (661) is fixedly installed at the top end of the limit end plate (66), and a number of counterweight blocks (67) are threadedly installed on the threaded rod (661).

7. The dispensing device for circuit boards according to claim 1, wherein, The glue application member (77) includes a connecting pipe (771), the connecting pipe (771) is threadedly connected to the conversion sleeve (75), the bottom end of the connecting pipe (771) is communicated with a glue application box (772), and a glue application roller (773) is rotatably installed in the glue application box (772).

8. The dispensing device for circuit boards according to claim 1, characterized in that, A through hole is formed through the middle of the cutting rod (71) and the tangential block (72). A blower (8) is installed at the top end of the through hole, and an electric heating grid (9) is embedded at the bottom end of the through hole.

Images