Equipment for carrying out on-line dispensing on circuit board

Abstract

The utility model relates to the technical field of automation equipment, in particular to equipment for carrying out on-line dispensing on a circuit board, which comprises a rack, a three-axis mechanical arm, a connection production line and a dispensing assembly which is arranged at the driving end of the three-axis mechanical arm and is used for carrying out dispensing operation on a piece to be processed on a dispensing station; wherein the connection production line is provided with a conveying assembly and a moving and blocking assembly, the conveying assembly is used for conveying a to-be-processed part to move along the connection production line, and the moving and blocking assembly is installed on the rack and blocks the to-be-processed part to enable the to-be-processed part to stop at a preset position. In conclusion, efficient, accurate and flexible online glue dispensing operation is achieved through the three-axis mechanical arm, the double-conveying-belt system, the pneumatic baffle, the adjustable conveying assembly and the linear sliding rail system. Due to the design characteristics, the equipment can meet the production requirements of circuit boards with different widths, the dispensing precision and consistency are ensured, the production efficiency is finally improved, and the production cost and the defective rate are reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to automatic equipment technical field especially is related to a device that carries out online dispensing glue to circuit board. BACKGROUND

[0002] With the trend of miniaturization and intelligentization of electronic products, circuit board welding technology and post-processing technology are particularly important. In particular, after the circuit board is welded with components, the back surface usually leaves a dense pin, which not only occupies limited space, but also increases the risk of failure of the circuit board during long-term use, such as short circuit caused by dust accumulation. Therefore, it has become necessary to apply safety glue to the dense pin area on the back surface of the circuit board for protection. Safety glue can form a protective layer after curing, effectively preventing short circuit and contact failure caused by vibration.

[0003] Traditional dispensing processes often use manual or semi-automatic methods. This method not only has low efficiency, but is also easily affected by the technical level of the operator, resulting in inconsistent dispensing quality and effect.

[0004] The back surface of the circuit board after SMT (Surface Mount Technology) welding is covered with component pins, which is prone to dust accumulation and short circuit. Dispensing (applying safety glue) can effectively prevent such problems and prevent contact failure caused by vibration. However, traditional manual or semi-automatic dispensing methods are inefficient and lack precision, making it difficult to meet the needs of mass production.

[0005] In order to improve production efficiency and dispensing precision, it is necessary to propose an automatic online dispensing equipment. SUMMARY

[0006] The utility model aims at providing a technical solution to solve the above problems.

[0007] The utility model provides a kind of equipment for dispensing glue to circuit board online, comprising: rack, carries entire equipment, and is installed with three-axis mechanical arm;Connection production line, installation is in rack, for conveying operation to the piece to be handled, and is equipped with dispensing station;And dispensing assembly, installation is in the drive end of three-axis mechanical arm, and carries out dispensing operation to the piece to be handled in dispensing station;Wherein, connection production line is equipped with conveying assembly and stop component, the conveying assembly is used to convey the piece to be handled and moves along connection production line, the stop component is installed in rack, and the piece to be handled is blocked, so as to stop in preset position.

[0008] As a further scheme of the utility model: the gear shifting assembly is equipped with a gear shifting support, a first cylinder and a first elastic sheet, the gear shifting support is fixedly connected to the rack and is located below the conveying assembly; the first cylinder is installed on the gear shifting support and corresponds to the end position of the glue dispensing station; the first elastic sheet is fixedly connected to the piston end of the first cylinder and blocks the workpiece at the end position of the glue dispensing station, so that the workpiece stops at the glue dispensing station, facilitating the glue dispensing operation of the glue dispensing assembly.

[0009] As a further scheme of the utility model: the gear shifting assembly is further equipped with a second cylinder and a second elastic sheet, the second cylinder is installed on the gear shifting support and corresponds to the starting end position of the glue dispensing station; the second elastic sheet is fixedly connected to the piston end of the second cylinder and blocks the workpiece conveyed from the starting end position of the glue dispensing station.

[0010] As a further scheme of the utility model: the glue dispensing assembly is equipped with a glue dispensing support, a glue dispensing cross rod, a glue dispensing valve and a valve seat plate, the glue dispensing support is fixedly connected to the driving end of the three-axis mechanical arm, the glue dispensing cross rod is fixedly connected to the glue dispensing support, one end of the valve seat plate is sleeved on the glue dispensing cross rod and the other end is fixedly connected to the glue dispensing valve.

[0011] As a further scheme of the utility model: the glue dispensing assembly is further equipped with a glue dispensing guide rail and a glue dispensing sliding block, the glue dispensing guide rail is fixedly connected to the glue dispensing support, the glue dispensing sliding block is slidingly connected to the glue dispensing guide rail and is fixedly connected with the valve seat plate.

[0012] As a further scheme of the utility model: the glue dispensing assembly is further equipped with an initial glue disc, the initial glue disc is fixedly connected to the connecting production line and is located below the initial position of the glue dispensing valve.

[0013] As a further scheme of the utility model: the conveying assembly is equipped with a first support, a first belt, a first motor, a second support, a second belt and a second motor, the first support and the second support are arranged in parallel with each other and are respectively connected to the rack; the first belt is rotatably connected to the first support through a belt pulley and is in transmission connection with the first motor; the second belt is rotatably connected to the second support through a belt pulley and is in transmission connection with the second motor.

[0014] As a further scheme of the utility model: the connecting production line is further equipped with a supporting base, a supporting rod, an adjusting screw and an adjusting base, the supporting base is fixedly connected to the rack, the supporting rod is fixedly connected with the supporting base at both ends, the adjusting screw is rotatably connected to the supporting base at both ends, the first support is fixedly connected to the supporting base at one end of the supporting rod; one end of the adjusting base is fixedly connected to the second support and is sleeved on the supporting rod through a linear bearing, and is in transmission connection with the adjusting screw through a nut.

[0015] As a further scheme of the utility model: the connecting production line is further provided with a locking piece, one end of the locking piece is fixedly connected to the adjusting base, and the other end is clamped to the supporting rod.

[0016] Compared with the prior art, the utility model has the beneficial effects that:

[0017] 1. Combined with the three-axis mechanical arm, the connecting production line and the dispensing assembly, efficient circuit board online dispensing operation can be realized. The design of the connecting production line adopts two parallel conveying assemblies, which can continuously convey materials and block and position the to-be-processed pieces as needed. In this way, not only the efficiency in the dispensing process is ensured, but also the problem of impact or displacement of the to-be-processed pieces in the conveying process is effectively avoided.

[0018] 2. The design of the blocking assembly is innovative, which uses a combination of a cylinder and a spring sheet to realize accurate blocking of the circuit board, control the residence time of the to-be-processed piece at the dispensing station, further improve the dispensing precision, and simplify the complexity of the equipment.

[0019] 3. In addition, the design of the equipment also considers the flexibility of the production line. The conveying assembly can adapt to the conveying of circuit boards of different widths through the structural design of the adjusting bracket and the supporting rod, thereby expanding its applicability. This design effectively improves the automation level of production, reduces manual intervention, and reduces the influence of human factors on production quality.

[0020] After the above improvement, the utility model can provide an equipment for online dispensing of circuit boards. Through the use of a three-axis mechanical arm, a double-conveying-belt system, a pneumatic baffle, an adjustable conveying assembly and a linear slide rail system, efficient, accurate and flexible online dispensing operation is realized. These design features enable the equipment to adapt to the production needs of circuit boards of different widths and ensure the precision and consistency of dispensing, ultimately improving production efficiency and reducing production cost and defective rate.

[0021] Additional aspects and advantages of the utility model will be partially given in the following description, some will become apparent from the following description, or will be understood through practice of the utility model. BRIEF DESCRIPTION OF DRAWINGS

[0022] In order to more clearly illustrate the technical scheme in the embodiments of the utility model or the prior art, the following will briefly introduce the drawings needed to be used in the embodiment or the prior art description. Obviously, the drawings in the following description are only some embodiments of the utility model, and those skilled in the art can also obtain other drawings according to these drawings without creating creative labor.

[0023] Figure 1 It is the structure schematic view of the conveying assembly and the blocking assembly of the utility model.

[0024] Figure 2 This is a schematic diagram of the frame and the connected production line of this utility model;

[0025] Figure 3 This is a structural schematic diagram of the dispensing assembly of this utility model;

[0026] Figure 4 This is a structural schematic diagram of the gear shifting assembly of this utility model;

[0027] Figure 5 This is a schematic diagram of the support rod and adjusting screw of this utility model;

[0028] Figure 6 This is a schematic diagram of the conveying component and the workpiece to be processed according to this utility model.

[0029] The reference numerals and names in the figure are as follows:

[0030] 10. Frame; 11. Three-axis robotic arm; 12. Part to be processed; 13. Safety light curtain; 14. Protective cover; 20. Connecting to production line; 21. Dispensing station; 22. Support base; 23. Support rod; 24. Adjusting screw; 25. Adjusting handle; 26. Adjusting base; 27. Locking component; 30. Conveying assembly; 31. First bracket; 32. First belt; 33. First motor; 34. Second bracket; 35. Second belt; 36. Second motor; 40. Gear travel assembly; 41. Gear travel bracket; 42. First cylinder; 43. First spring; 44. Second cylinder; 45. Second spring; 46. Photoelectric sensor; 50. Dispensing assembly; 51. Dispensing bracket; 52. Dispensing crossbar; 53. Dispensing valve; 54. Valve seat plate; 55. Dispensing guide rail; 56. Dispensing slider; 57. Initial glue tray; 58. Station glue tray. Detailed Implementation

[0031] The technical solutions in the embodiments of this utility model will be clearly and completely described below. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0032] Please see Figures 1 to 6In this embodiment of the present invention, an online dispensing device for circuit boards includes: a frame 10, which supports the entire device and is equipped with a three-axis robotic arm 11; a connecting production line 20, which is installed on the frame 10 and is used for conveying the workpiece 12 to be processed, and is provided with a dispensing station 21; and a dispensing assembly 50, which is installed on the drive end of the three-axis robotic arm 11 and performs dispensing operations on the workpiece 12 to be processed on the dispensing station 21; wherein, the connecting production line 20 is provided with a conveying assembly 30 and a guide assembly 40, the conveying assembly 30 is used to convey the workpiece 12 to be processed along the connecting production line 20, and the guide assembly 40 is installed on the frame 10 and blocks the workpiece 12 to be processed, causing it to stop at a preset position.

[0033] Specifically, after the components are soldered onto the circuit board, the back of the board is usually covered with component pins. To prevent dust accumulation on these densely packed pins during long-term use, which could lead to short circuits or other hazards, a safety adhesive can be applied to the densely packed pin areas on the back of the circuit board, a process commonly known as dispensing. After the safety adhesive cures, it protects the component pins, preventing short circuits and also preventing poor contact during operation and vibration. The component to be processed 12 is the circuit board product after the components have been soldered.

[0034] Secondly, efficient, precise, and flexible online dispensing operations are achieved through the use of a three-axis robotic arm 11, a dual conveyor belt system, pneumatic baffles, an adjustable conveyor assembly 30, and a linear guide rail system. These design features enable the equipment to adapt to the production needs of circuit boards of different widths, ensuring dispensing accuracy and consistency, ultimately improving production efficiency and reducing production costs and defect rates.

[0035] In addition, the three-axis robotic arm 11 can be a product from the existing technology, such as a three-axis servo-guided lateral movement robotic arm. For safety reasons, a protective cover 14 can be installed on the side of the frame 10, and a safety light curtain 13 can be installed on the front side of the production line 20 to detect whether there are other objects in front of the production line 20. If other objects are found, the mechanical equipment can be stopped. These other objects can be the arm used for manual material handling, mechanical parts used for mechanical material handling, or other misplaced parts, etc., items that are not in normal operating condition.

[0036] like Figure 1 and Figure 4As shown, preferably, the guide assembly 40 is provided with a guide bracket 41, a first cylinder 42 and a first spring 43. The guide bracket 41 is fixed to the frame 10 and located below the conveying assembly 30. The first cylinder 42 is installed on the guide bracket 41 and corresponds to the end position of the dispensing station 21. The first spring 43 is fixed to the piston end of the first cylinder 42 and blocks the workpiece 12 to be processed at the end of the dispensing station 21, so that it stops at the dispensing station 21, which facilitates the dispensing assembly 50 to dispense it.

[0037] Specifically, since the connecting production line 20 has two sets of parallel conveyor components 30, and the two sides of the workpiece 12 are respectively attached to the conveyor belts of the two sets of conveyor components 30, it is conveyed and moved. Therefore, in order to block the workpiece 12 when needed, without hindering its normal movement, it is preferable to install the guide bracket 41 in the middle of the two sets of parallel conveyor components 30, and below the conveyor belt, so that the first cylinder 42 can drive the first spring 43 to move upward a certain distance, blocking the movement path of the workpiece 12, so that it stops at the dispensing station 21 after being blocked, facilitating the dispensing operation.

[0038] Secondly, to improve efficiency, the conveying assembly 30 can be set to operate continuously, facilitating continuous conveying of the workpiece 12 to be processed at the incoming end and the workpiece 12 to be processed at the outgoing end. In order to stop the workpiece 12 at the dispensing station 21, the first cylinder 42 and the first spring 43 need to be set to block the workpiece 12 at the dispensing station 21, so that it stops at the preset position.

[0039] Furthermore, to prevent the circuit board from directly impacting the piston rod of the cylinder, a spring with the same elasticity can be fixed to the piston rod to provide some cushioning for the circuit board during movement. Subsequently, under the continuous conveying force of the conveying assembly 30, the circuit board can be relatively stably blocked at the position of the spring, facilitating the dispensing operation. After the dispensing operation is completed, the control module can control the piston rod of the cylinder to move downward, thereby causing the spring to move downward and no longer obstruct the circuit board, allowing the circuit board to continue moving towards the later stage of the connecting production line 20 under the continuous conveying of the conveying assembly 30.

[0040] like Figure 4 As shown, preferably, the guide assembly 40 is further provided with a second cylinder 44 and a second spring 45. The second cylinder 44 is installed on the guide bracket 41 and corresponds to the starting position of the dispensing station 21. The second spring 45 is fixed to the piston end of the second cylinder 44 and blocks the conveyed workpiece 12 at the starting position of the dispensing station 21, so that it stops at the starting position of the dispensing station 21.

[0041] Specifically, since the conveying assembly 30 continuously conveys the workpiece 12 from the incoming end, to prevent subsequent workpieces 12 from colliding with the workpieces 12 at the dispensing station 21, a second cylinder 44 and a second spring 45 can be installed at the starting end of the dispensing station 21. This allows subsequent workpieces 12 to be stopped by the conveying assembly 30 before the dispensing station 21. Understandably, since the circuit boards have uniform hardness, and the conveying assembly 30 uses a belt conveyor system, only contacting the edges of the circuit boards where no electronic components are soldered, even if the circuit board is blocked, the belt will continue to run without causing any damage to the edges of the circuit board.

[0042] Secondly, preferably, a photoelectric sensor 46 is also provided next to the positions corresponding to the first cylinder 42 and the second cylinder 44, so as to sense the workpiece 12 to be processed at the corresponding positions and send the sensed signal to the control module, so that the control module can automatically set the equipment.

[0043] like Figure 1 and Figure 3 As shown, preferably, the dispensing assembly 50 is provided with a dispensing bracket 51, a dispensing crossbar 52, a dispensing valve 53 and a valve seat plate 54. The dispensing bracket 51 is fixed to the drive end of the three-axis robotic arm 11, the dispensing crossbar 52 is fixed to the dispensing bracket 51, one end of the valve seat plate 54 is sleeved on the dispensing crossbar 52, and the other end is fixed to the dispensing valve 53.

[0044] Specifically, to facilitate the lateral movement of the dispensing valve 53 according to the dispensing position when dispensing circuit boards of different specifications, a dispensing crossbar 52 can be installed on the dispensing bracket 51, and a valve seat plate 54 can be sleeved on the dispensing crossbar 52, thereby allowing the dispensing valve 53 to move laterally along the dispensing crossbar 52. Furthermore, the dispensing valve 53 can be a pre-existing product and is connected to an external adhesive supply device via corresponding piping to provide the necessary safety adhesive to the dispensing valve 53.

[0045] Secondly, to perform simultaneous dispensing operations at multiple locations on the workpiece 12, multiple dispensing valves 53 and valve seat plates 54 can be installed on the dispensing bracket 51. These valves are respectively fitted onto the dispensing crossbar 52 and moved laterally according to the corresponding dispensing positions. After being moved into place, the positions of the dispensing valves 53 are fixed using preset knobs (not shown in the figure) or other components. In other words, based on the number of locations on the circuit board requiring lateral dispensing, a corresponding number of dispensing valves 53 are directly set, and they are manually moved into place and fixed, improving the efficiency of the dispensing operation.

[0046] Alternatively, if the areas requiring lateral dispensing are relatively dispersed and the solution of directly fixing the dispensing valve 53 to a preset position is not suitable, a dispensing cylinder (not shown in the figure) can be added to the dispensing assembly 50 to allow the dispensing valve 53 to move laterally. During the dispensing process, the cylinder can move laterally to the position where dispensing is required, depending on the dispensing location.

[0047] like Figure 3 As shown, preferably, the dispensing assembly 50 is further provided with a dispensing guide rail 55 and a dispensing slider 56. The dispensing guide rail 55 is fixedly connected to the dispensing bracket 51, and the dispensing slider 56 is slidably connected to the dispensing guide rail 55 and forms a fixed connection with the valve seat plate 54.

[0048] Specifically, to make the lateral movement of the dispensing valve 53 more precise and stable, a dispensing guide rail 55 and a dispensing slider 56 can be set between the valve seat plate 54 and the dispensing bracket 51, thus forming a linear slide rail system. The combination of the lateral movement device of the dispensing assembly 50 and the slide rail system enables the dispensing valve 53 to move precisely to the corresponding preset position and to quickly change dispensing operations at different positions, adapting to diverse dispensing needs.

[0049] like Figure 1 and Figure 4 As shown, preferably, the dispensing assembly 50 is further provided with an initial glue tray 57, which is fixed to the connecting production line 20 and located below the initial position of the dispensing valve 53.

[0050] Specifically, to prevent the safety adhesive from dripping from the nozzle of the dispensing valve 53 onto the frame 10, an initial adhesive tray 57 can be installed below the initial position of the dispensing valve 53 to catch any accidentally dripping safety adhesive. Similarly, to prevent accidents, a station adhesive tray 58 can be installed below the dispensing station 21, fixed to the frame 10, to catch any accidentally dripping safety adhesive from the dispensing valve 53 at the dispensing station 21.

[0051] like Figure 5 and Figure 6 As shown, preferably, the conveying assembly 30 is provided with a first support 31, a first belt 32, a first motor 33, a second support 34, a second belt 35, and a second motor 36. The first support 31 and the second support 34 are arranged parallel to each other and are respectively connected to the frame 10. The first belt 32 is rotatably connected to the first support 31 through a pulley and forms a transmission connection with the first motor 33. The second belt 35 is rotatably connected to the second support 34 through a pulley and forms a transmission connection with the second motor 36.

[0052] Specifically, to transport circuit board products of different specifications and widths, two sets of conveyor components 30 can be set up, with the two sides of the circuit board products overlapping the conveyor belts of the two sets of conveyor components 30 respectively, thus forming a straddle-type conveying movement mode. At the same time, it is also convenient to set up corresponding stop components 40 between the two sets of conveyor components 30 to block and stop the workpiece 12 to be processed.

[0053] like Figure 5 and Figure 6 As shown, preferably, the connecting production line 20 is further provided with a support base 22, a support rod 23, an adjusting screw 24, and an adjusting base 26. The support base 22 is fixed to the frame 10. The two ends of the support rod 23 are respectively fixed to the support base 22. The two ends of the adjusting screw 24 are respectively rotatably connected to the support base 22. The first bracket 31 is fixed to the support base 22 at one end of the support rod 23. One end of the adjusting base 26 is fixed to the second bracket 34 and is sleeved on the support rod 23 through a linear bearing. It is also connected to the adjusting screw 24 through a nut to form a transmission connection.

[0054] Specifically, to facilitate adjustment and allow for the transport of circuit board products of different widths, the second bracket 34 of the transport assembly 30 can be configured to be adjustable. Preferably, two support bases 22 are provided on the frame 10, and the two ends of the support rod 23 are respectively connected to the support bases 22. The first bracket 31 is then fixed to one end of the support base 22, while the second bracket 34 can be adjusted by adjusting the base 26 fitted onto the support rod 23 and sliding along the support rod 23. This allows for adjustment of the distance between the first bracket 31 and the second bracket 34, thus meeting the requirement of transporting workpieces 12 of different widths.

[0055] Secondly, to facilitate adjustment of the second support 34, an adjusting screw 24 can be provided, allowing the adjusting base 26 to form a threaded connection with the adjusting screw 24 via a nut. This allows the user to adjust the position of the second support 34 by rotating the adjusting screw 24. Additionally, for easier adjustment, an adjusting handle 25 can be provided at one end of the adjusting screw 24, fixed to it for rotation. Understandably, to provide stable support for the conveying assembly 30, it is preferable to provide two sets of the above-mentioned adjusting mechanisms, one set at each end of the conveying assembly 30. Furthermore, if the conveying assembly 30 is relatively long, multiple sets of adjusting mechanisms can be added to further enhance the stable support of the conveying assembly 30.

[0056] like Figure 5 As shown, preferably, the connecting production line 20 is also provided with a locking member 27, one end of which is fixed to the adjusting base 26, and the other end is clamped to the support rod 23.

[0057] Specifically, after adjustment, to ensure the second bracket 34 is stable on the support rod 23, a locking element 27 can be installed. One end of the locking element 27 is fixed to the adjusting base 26, and the other end is clamped to the support rod 23, thereby locking the support rod 23. The locking element 27 can be an existing product, such as having two clamping arms that clamp the support rod 23 from both sides, and using bolts to adjust the clamping force between the clamping arms to fix it to the support rod 23.

[0058] Example 1: Dispensing adhesive onto a standard circuit board

[0059] This embodiment is for dispensing adhesive onto a standard circuit board with a width of 150mm. The equipment uses two sets of parallel conveyor assemblies 30, each driven by a motor and conveyed by a belt. The circuit board is mounted on both sides of the two belts and conveyed in a straddle-type manner. The guide assembly 40 is located between the two conveyor belts. The first cylinder 42 and the second cylinder 44 control the first spring 43 and the second spring 45, respectively, to precisely stop the circuit board at the dispensing station 21 and the avoidance station. The dispensing assembly 50 controls the movement of the dispensing valve 53 via a three-axis robotic arm 11 to dispense adhesive at a preset position. The initial adhesive tray 57 and the station adhesive tray 58 prevent safety adhesive from dripping. The support base 22, support rod 23, and adjusting screw 24 ensure that the spacing between the two conveyor belts matches the width of the circuit board.

[0060] Example 2: Dispensing adhesive onto a wide circuit board

[0061] This embodiment is for dispensing adhesive onto a wide circuit board with a width of 250mm. Similar to Embodiment 1, two sets of parallel conveyor components 30 are used, but the distance between the two conveyor belts is adjusted by adjusting the screw 24 to accommodate the size of the wide circuit board. The remaining component configuration is the same as in Embodiment 1. During the dispensing process, the three-axis robotic arm 11 controls the dispensing valve 53 to perform dispensing operations at multiple preset positions on the circuit board. The dispensing cylinder can also drive the dispensing valve 53 to move laterally. The dispensing guide rail 55 and the slider ensure smooth movement of the dispensing valve 53 to guarantee dispensing accuracy.

[0062] Example 3: Multi-dispensing valve 53 dispensing

[0063] This embodiment addresses an application scenario requiring the dispensing of different types of safety adhesives at multiple locations on a circuit board. The dispensing assembly 50 is equipped with multiple dispensing valves 53 and corresponding valve seat plates 54. Each dispensing valve 53 is connected to a different adhesive supply device via an independent pipeline, providing different types of safety adhesives. A three-axis robotic arm 11 controls the entire dispensing assembly 50 to reach a preset position and complete the dispensing, while ensuring the dispensing sequence and accuracy. The conveying assembly 30 and the guide assembly 40 are the same as in Embodiment 1, ensuring stable conveying and positioning of the circuit board.

[0064] Example 4: High-speed dispensing

[0065] This embodiment addresses the need for high-efficiency production by employing a high-speed conveyor belt and a high-response cylinder. The motor speed of the conveying assembly 30 is increased to improve the conveying speed of the circuit boards. The guide assembly 40 uses a higher-performance cylinder and spring to achieve a faster response time, reduce circuit board downtime, and improve production efficiency. The dispensing assembly 50 employs a multi-dispensing valve 53 design, performing dispensing operations at multiple locations simultaneously, further improving production efficiency. The configuration of other components is basically the same as in the aforementioned embodiment.

[0066] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention.

Claims

1. An apparatus for online dispensing of adhesive onto circuit boards, characterized in that, include: The frame (10) supports the entire equipment and is equipped with a three-axis robotic arm (11). The connection line (20) is mounted on the frame (10) for conveying the workpiece (12) to be processed, and is equipped with a dispensing station (21); and The dispensing assembly (50) is installed on the drive end of the three-axis robotic arm (11) and performs dispensing operations on the parts (12) to be processed at the dispensing station (21). The connecting production line (20) is equipped with a conveying component (30) and a guide component (40). The conveying component (30) is used to convey the workpiece (12) to be processed along the connecting production line (20) for movement. The guide component (40) is installed on the frame (10) and blocks the workpiece (12) to be processed, so that it stops at a preset position.

2. The device for online dispensing of adhesive onto circuit boards according to claim 1, characterized in that, The guide assembly (40) is provided with a guide bracket (41), a first cylinder (42) and a first spring (43). The guide bracket (41) is fixed to the frame (10) and located below the conveying assembly (30). The first cylinder (42) is installed on the guide bracket (41) and corresponds to the end position of the dispensing station (21). The first spring (43) is fixed to the piston end of the first cylinder (42) and blocks the workpiece (12) to be processed at the end position of the dispensing station (21), so that it stops at the dispensing station (21) and facilitates the dispensing operation of the dispensing assembly (50).

3. The device for online dispensing of adhesive onto circuit boards according to claim 2, characterized in that, The guide assembly (40) is also provided with a second cylinder (44) and a second spring (45). The second cylinder (44) is installed on the guide bracket (41) and corresponds to the starting position of the dispensing station (21). The second spring (45) is fixed to the piston end of the second cylinder (44) and blocks the conveyed workpiece (12) at the starting position of the dispensing station (21), so that it stops at the starting position of the dispensing station (21).

4. The device for online dispensing of adhesive onto circuit boards according to claim 1, characterized in that, The dispensing assembly (50) is provided with a dispensing bracket (51), a dispensing crossbar (52), a dispensing valve (53) and a valve seat plate (54). The dispensing bracket (51) is fixed to the drive end of the three-axis robotic arm (11). The dispensing crossbar (52) is fixed to the dispensing bracket (51). One end of the valve seat plate (54) is sleeved on the dispensing crossbar (52), and the other end is fixed to the dispensing valve (53).

5. The device for online dispensing of adhesive onto a circuit board according to claim 4, characterized in that, The dispensing assembly (50) is also provided with a dispensing guide rail (55) and a dispensing slider (56). The dispensing guide rail (55) is fixedly connected to the dispensing bracket (51), and the dispensing slider (56) is slidably connected to the dispensing guide rail (55) and forms a fixed connection with the valve seat plate (54).

6. The device for online dispensing of adhesive onto circuit boards according to claim 1, characterized in that, The dispensing assembly (50) is also provided with an initial dispensing tray (57), which is fixed to the connecting production line (20) and located below the initial position of the dispensing valve (53).

7. The device for online dispensing of adhesive onto circuit boards according to claim 1, characterized in that, The conveying assembly (30) is provided with a first support (31), a first belt (32), a first motor (33), a second support (34), a second belt (35), and a second motor (36). The first support (31) and the second support (34) are arranged parallel to each other and are respectively connected to the frame (10). The first belt (32) is rotatably connected to the first support (31) through a pulley and forms a transmission connection with the first motor (33). The second belt (35) is rotatably connected to the second support (34) through a pulley and forms a transmission connection with the second motor (36).

8. The device for online dispensing of adhesive onto a circuit board according to claim 7, characterized in that, The connecting production line (20) is also provided with a support base (22), a support rod (23), an adjusting screw (24) and an adjusting base (26). The support base (22) is fixed to the frame (10). The two ends of the support rod (23) are respectively fixed to the support base (22). The two ends of the adjusting screw (24) are respectively rotatably connected to the support base (22). The first bracket (31) is fixed to the support base (22) at one end of the support rod (23). One end of the adjusting base (26) is fixed to the second bracket (34) and is sleeved on the support rod (23) through a linear bearing. It is connected to the adjusting screw (24) through a nut to form a transmission connection.

9. The device for online dispensing of adhesive onto a circuit board according to claim 7, characterized in that, The connecting production line (20) is also provided with a locking component (27), one end of which is fixed to the adjusting base (26), and the other end is clamped to the support rod (23).

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