Four-axis robot dispensing unit

Abstract

The utility model relates to robot technical field discloses a four -axis robot point gum single machine, including work table, the left side bottom fixed connection of work table has mounting plate no.

Description

Technical Field

[0001] This utility model relates to the field of robot technology, and in particular to a four-axis robot dispensing unit. Background Technology

[0002] In industrial production fields such as electronics manufacturing, automotive parts assembly, and precision instrument packaging, four-axis robotic dispensing units are widely used in the dispensing processes of various products. Whether it's sealing and bonding mobile phone chips, waterproofing dispensing for automotive sensors, or fixing precision components in medical devices, the equipment must ensure the precise and stable positioning of the workpiece during the dispensing process to achieve high-precision dispensing and guarantee product performance and quality.

[0003] Currently, traditional four-axis robot dispensing units mostly employ simple mechanical clamping structures, such as manual screw clamping or fixed fixtures. Manual clamping relies on operator experience to adjust the clamping force, making consistency difficult to guarantee and resulting in low efficiency. Fixed fixtures are only suitable for workpieces of specific sizes, requiring frequent fixture changes for diverse products, leading to cumbersome operations. Furthermore, these clamping structures lack effective guiding and limiting designs. Under the vibration generated during equipment operation or the external force during dispensing, the workpiece is prone to displacement or shaking, causing problems such as dispensing position deviation, glue accumulation, or overflow. This not only affects product yield but also increases material waste and rework costs, failing to meet the high-efficiency and precise production demands of modern industry.

[0004] Therefore, a four-axis robot dispensing unit is proposed to address the above problems. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a four-axis robot dispensing machine, which aims to improve the problem that the fixed fixtures in the existing technology are only suitable for workpieces of specific sizes, and that the fixtures need to be changed frequently when dealing with diverse products, resulting in cumbersome operation.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A four-axis robot dispensing unit includes a worktable. A mounting plate is fixedly connected to the bottom left side of the worktable. A drive assembly for providing power to the device is fixedly connected to the top of the mounting plate. Two sliding blocks are threadedly connected to the external side of the drive assembly. A connecting plate is fixedly connected to the front side of each sliding block. A second sliding block is fixedly connected to the front side of the connecting plate. A sliding plate is fixedly connected to the top of both the second and first sliding blocks. A clamping plate is fixedly connected to the outside of the sliding plate. A guide rod is fixedly connected to the front inside of the worktable. Two sliding holes are opened on both the left and right sides of the top of the worktable. A dispensing assembly for dispensing adhesive to workpieces is provided on the rear top side of the worktable.

[0008] As a further description of the above technical solution:

[0009] The drive assembly includes a motor and a bidirectional threaded rod. The bottom of the motor is fixedly connected to the top of the mounting plate, the left side of the bidirectional threaded rod is fixedly connected to the output end of the motor, and the middle of the two sliding blocks are threaded to the outside of the bidirectional threaded rod.

[0010] As a further description of the above technical solution:

[0011] The top left and right sides of the workbench are provided with moving components for adjusting the cleaning position of the workpiece. A moving plate is fixedly connected to the adjacent side of the two moving components. The bottom left and right sides of the moving plate are fixedly connected with adjustment components for adjusting according to the height of the workpiece. Multiple brushes are provided at the bottom of the adjustment components.

[0012] As a further description of the above technical solution:

[0013] The dispensing assembly includes a rotating disk and a robotic arm. The bottom of the rotating disk is located on the top rear side of the worktable, and the bottom of the robotic arm is fixedly connected to the top of the rotating disk. A dispensing head is provided on the other side of the robotic arm.

[0014] As a further description of the above technical solution:

[0015] The top of the sliding plate is slidably connected to the inside of the sliding hole, and the middle part of the second sliding block is slidably connected to the outside of the guide rod;

[0016] As a further description of the above technical solution:

[0017] The moving component includes four support columns and two electric guide rails. The bottoms of two of the support columns are fixedly connected to the top left side of the worktable, and the bottoms of the other two support columns are fixedly connected to the top right side of the worktable. The bottom front and rear sides of the electric guide rails are respectively fixedly connected to the tops of the two support columns. Sliding blocks three are slidably connected to the outside of the two electric guide rails. The moving plate is fixedly connected to the outside of the two sliding blocks three.

[0018] As a further description of the above technical solution:

[0019] The adjustment assembly includes two electric telescopic rods and a second mounting plate. The tops of the two electric telescopic rods are fixedly connected to the bottom of the motion plate, and the top of the second mounting plate is fixedly connected to the output end of the two electric telescopic rods. The tops of the plurality of brushes are fixedly connected to the bottom of the second mounting plate.

[0020] As a further description of the above technical solution:

[0021] The workbench is fixedly connected to four corners at its bottom with support legs, and the bottom of the clamping plate is in contact with the top of the workbench.

[0022] This utility model has the following beneficial effects:

[0023] 1. In this utility model, a motor drives a bidirectional threaded rod to rotate, causing the threaded sliding block one to move axially along the bidirectional threaded rod. This, in turn, causes the connecting plate and sliding block two to move synchronously. With the help of a guide rod for linear guidance and correction of sliding block two, and the limiting constraint of the sliding hole on the sliding plate, the clamping plate applies clamping force from both sides of the workpiece. This interconnected structure achieves stable clamping and fixing of the workpiece to be dispensed, effectively preventing displacement of the workpiece due to vibration, external forces, or other factors during the dispensing process, ensuring the accuracy of the dispensing position. Simultaneously, the cooperation between the guide rod and the sliding hole ensures stable movement trajectories of sliding block one and the sliding plate, making the entire clamping mechanism more reliable. This lays a solid foundation for efficient and precise dispensing operations, significantly improving dispensing accuracy and product yield.

[0024] 2. In this utility model, the sliding block three is driven by an electric guide rail to move along the track, causing the moving plate to flexibly adjust its front and rear positions above the worktable. In conjunction with the electric telescopic rod, the output end is precisely controlled to extend and retract based on the workpiece height information, driving the mounting plate two and the bottom brush to move up and down, ensuring the brush is in close contact with the workpiece surface. When the moving plate moves along the set path, the brush, through friction with the workpiece surface, achieves automated cleaning of the workpiece surface before dispensing, thoroughly removing dust and debris, creating a clean working surface free of impurities, providing a prerequisite for high-quality dispensing. Simultaneously, the rotating disk adjusts the horizontal orientation of the robotic arm through its internal drive structure. The robotic arm, with its multi-axis rotation function, drives the dispensing head to precisely reach the dispensing position on the workpiece. Combined with preset parameters such as dispensing volume and speed, the adhesive is precisely applied. This synergistic structure improves dispensing quality through automated cleaning and meets the high-efficiency, precise dispensing needs of industrial production through the precise movement and parameter control of the robotic arm, reducing manual intervention and significantly improving production efficiency. Attached Figure Description

[0025] Figure 1 This is a three-dimensional schematic diagram of a four-axis robot dispensing unit proposed in this utility model;

[0026] Figure 2 This is a schematic diagram of the bidirectional threaded rod of a four-axis robot dispensing unit proposed in this utility model;

[0027] Figure 3 This is a schematic diagram of the structure of the robotic arm of a four-axis robot dispensing unit proposed in this utility model;

[0028] Figure 4 for Figure 2 Enlarged view of point A.

[0029] Legend:

[0030] 1. Workbench; 2. Mounting plate one; 3. Motor; 4. Two-way threaded rod; 5. Sliding block one; 6. Connecting plate; 7. Sliding block two; 8. Sliding plate; 9. Clamping plate; 10. Guide rod; 11. Sliding hole; 12. Rotating disk; 13. Robotic arm; 14. Dispensing head; 15. Support column; 16. Electric guide rail; 17. Sliding block three; 18. Motion plate; 19. Electric telescopic rod; 20. Mounting plate two; 21. Brush. Detailed Implementation

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

[0032] Reference Figures 1 to 3 This utility model provides an embodiment of a four-axis robot dispensing unit, including a worktable 1 that serves as the basic load-bearing structure for the four-axis robot dispensing unit and provides an installation platform for other components. The top of the worktable is used to place the workpiece to be dispensed, and the four support legs at the bottom corners provide stable support to ensure the stability of the equipment during operation. A mounting plate 2 is fixedly connected to the bottom left side of the worktable 1 for mounting a motor 3 in the drive assembly, providing a stable mounting base for the motor 3 and ensuring the stability of the motor 3 during operation. A drive assembly for providing power to the device is fixedly connected to the top of the mounting plate 2. The drive assembly has two external threaded connections that move axially along the threaded rod 4 when the bidirectional threaded rod 4 rotates. These are key transmission components for the movement of the clamping mechanism and drive the connecting plate 6 and subsequent structures to move synchronously. The drive assembly includes a motor 3 and a bidirectional threaded rod 4, which serve as the core power source of the drive assembly and are installed on the top of the mounting plate 2. After the power is turned on, the motor 3 and the bidirectional threaded rod 4 provide rotational power to drive the bidirectional threaded rod 4 to rotate, providing power support for the movement of the entire clamping mechanism.

[0033] The bottom of motor 3 is fixedly connected to the top of mounting plate 2. The left side of the bidirectional threaded rod 4 is fixedly connected to the output end of motor 3. Through threaded transmission, the rotation of motor 3 is converted into the linear movement of sliding block 5. Depending on the direction of rotation, the two sliding blocks 5 are moved closer or further apart along the axial direction by the bidirectional threaded rod 4. The middle of the two sliding blocks 5 is threaded to the outside of the bidirectional threaded rod 4. The front side of the two sliding blocks 5 is fixedly connected to a connecting plate 6 for connecting sliding block 5 and sliding block 7, transmitting the movement of sliding block 5 to sliding block 7, and realizing the linkage of various components of the clamping mechanism. The front side of the connecting plate 6 is fixedly connected to a sliding block 7, which is slidably connected to the outside of guide rod 10. Under the drive of the connecting plate 6, it slides along guide rod 10. Through the guiding action of guide rod 10, the accuracy of the movement trajectory of sliding block 5 is ensured and sliding block 7 is prevented from deviating. The top of sliding block 7 and sliding block 15 is fixedly connected to the top of sliding block 5 and sliding block 7, and the top is slidably connected inside sliding hole 11.

[0034] Driven by sliding blocks 5 and 7, the sliding plate 8 slides within the sliding hole 11, connecting the clamping plate 9 and transmitting motion. The external of the sliding plate 8 is fixedly connected to a clamping plate 9, whose bottom contacts the top of the worktable 1. The two clamping plates 9 approach each other, applying clamping force from both sides of the workpiece to achieve stable clamping and fixing of the workpiece to be dispensed. The four corners of the bottom of the worktable 1 are fixedly connected to supports, ensuring the worktable 1 remains level and stable, preventing shaking during operation and providing a stable foundation for dispensing operations. The bottom of the clamping plate 9 contacts the top of the worktable 1. The front of the worktable 1 is fixedly connected to a guide rod 10 that provides a linear guide for the sliding block 7. Through the sliding connection with the sliding block 7, the movement trajectory of the sliding block 5 is corrected, ensuring the stable operation of the clamping mechanism. The middle part of the sliding block 7 is slidably connected to the outside of the guide rod 10. The top left and right sides of the worktable 1 are provided with two sliding holes 11 that are slidably connected to the top of the sliding plate 8, which limit and guide the sliding plate 8, ensuring that the sliding plate 8 will not deviate during the movement and ensuring the accuracy of the movement of the clamping plate 9.

[0035] The top of the sliding plate 8 is slidably connected to the inside of the sliding hole 11. A dispensing assembly for dispensing glue to the workpiece is provided on the top rear side of the worktable 1. The dispensing assembly includes a rotating disk 12 and a rotating disk 13, which are part of the dispensing assembly and are located at the bottom of the worktable 1. The rotating disk 12 is located at the top rear side of the worktable 1, and the bottom of the rotating disk 13 is fixedly connected to the top of the rotating disk 12. The rotating disk 13 has a multi-axis rotation function. Through the motor 3 of each axis and the joint linkage, the dispensing head 14 is moved, so that the dispensing head 14 can be accurately positioned in three-dimensional space. On the other side of the rotating disk 13, there is a dispensing head 14 that accurately applies glue to the designated part of the workpiece according to the preset dispensing parameters, such as glue volume and dispensing speed, to complete the dispensing operation.

[0036] Reference Figure 2 and Figure 4 The top left and right sides of the workbench 1 are equipped with moving components for adjusting the cleaning position of the workpiece. Two moving components are fixedly connected to adjacent sides by sliding blocks 17, which move above the workbench 1. These blocks connect the moving components and the adjusting components, transmitting the movement of the moving components to the moving plate 18 of the adjusting components. There are four moving components in total: two with their bottoms fixedly connected to the top left side of the workbench 1, and the other two with their bottoms fixedly connected to the top right side of the workbench 1. These components support the electric guide rails 16, providing a stable mounting support structure for the moving components. Support columns 15 and two electric guide rails 16 are also provided. The bottoms of the two support columns 15 are fixedly connected to the workbench. On the top left side of the workbench 1, the bottom of two other support columns 15 are fixedly connected to the top right side of the workbench 1. The bottom front and rear sides of the electric guide rail 16 are fixedly connected to the top of the two support columns 15 respectively. As the core component of the moving assembly, the electric guide rail 16 drives the sliding block 3 17 to move along the track by receiving control signals, thereby driving the motion plate 18 to adjust the front and rear position above the workbench 1. The two electric guide rails 16 are slidably connected to the outside of the electric guide rail 16. Under the driving force of the electric guide rail 16, the sliding block 3 17 moves along the track and is fixedly connected to the motion plate 18, thereby driving the motion plate 18 to move above the workbench 1, thus realizing the cleaning position adjustment.

[0037] The motion plate 18 is externally fixedly connected to the outside of two sliding blocks 17. Adjustment components for adjusting according to the workpiece height are fixedly connected to both the left and right sides of the bottom of the motion plate 18. The bottom of each adjustment component is fixedly connected to the bottom of the mounting plate 20. Driven by the motion plate 18, it moves along a set path and removes dust and debris from the workpiece surface through friction, providing a clean working surface for dispensing. Multiple brushes 21, including a top fixedly connected to the bottom of the motion plate 18, are key components of the adjustment assembly. Based on the workpiece height information, they are driven by an internal motor 3 or hydraulically. The two electric telescopic rods 19 and the mounting plate 20 are precisely controlled by means of control, which drive the extension and retraction of the output end. The tops of the two electric telescopic rods 19 are fixedly connected to the bottom of the moving plate 18. The top of the mounting plate 20 is fixedly connected to the output end of the two electric telescopic rods 19. The top of the mounting plate 20 is fixedly connected to the output end of the electric telescopic rods 19. Multiple brushes 21 are fixedly connected to the bottom of the mounting plate 20. The mounting plate 20 moves up and down under the drive of the electric telescopic rods 19, so that the brushes 21 can make close contact with or separate from the surface of the workpiece. The tops of the multiple brushes 21 are fixedly connected to the bottom of the mounting plate 20.

[0038] Working Principle: When this four-axis robot dispensing unit is put into use, the operator first plans the placement area according to the workpiece size and dispensing requirements, and then places the workpiece to be dispensed stably in the appropriate position on the worktable 1, laying the foundation for subsequent automated operations. The drive component, as the core power source, starts up, and the motor 3 starts running after being powered on. Its output end acts as a power hub, powerfully driving the bidirectional threaded rod 4 to rotate. Since the two sliding blocks 5 are assembled on the outside of the bidirectional threaded rod 4 through a threaded connection, the threaded driving force generated by the rotation of the bidirectional threaded rod 4 will cause the two sliding blocks 5 to move closer or further apart along the axis of the bidirectional threaded rod 4, according to the actual width of the workpiece to be dispensed.

[0039] During the movement of sliding block 5, the mechanical connection drives the front fixed connecting plate 6 to move synchronously. Connecting plate 6 further drives sliding block 7 to slide smoothly outside guide rod 10. Guide rod 10, with its linear guiding characteristics, precisely corrects the movement trajectory of sliding block 5, preventing it from deviating during movement and ensuring the stable operation of the entire clamping mechanism. Simultaneously, sliding plate 8, fixedly connected to the top of sliding blocks 5 and 7, slides within sliding hole 11. Sliding hole 11 limits and guides sliding plate 8, causing clamping plate 9, fixedly connected to the outside of sliding plate 8, to move accordingly. By bringing the two clamping plates 9 closer together, clamping forces are applied from both sides of the workpiece, achieving stable clamping and fixing of the workpiece to be dispensed. This provides strong assurance for the stability of the workpiece position during dispensing, preventing workpiece displacement from affecting dispensing accuracy.

[0040] If the surface of the workpiece needs to be cleaned before dispensing, the moving component and the adjusting component work together. The electric guide rail 16 in the moving component receives a control signal and starts. The sliding block 17, externally slidably connected to the electric guide rail 16, moves along the track direction of the electric guide rail 16 under the driving force generated by the electric guide rail 16, thereby driving the moving plate 18 to adjust its position back and forth above the worktable 1. The back and forth stopping position of the moving plate 18 can be flexibly adjusted according to the length of the workpiece and cleaning requirements. The electric telescopic rod 19 in the adjusting component, based on the workpiece height information, precisely controls the extension and retraction of its output end through internal motor 3 or hydraulic control, driving the mounting plate 20 to move up and down, allowing the multiple brushes 21 fixedly connected to the bottom of the mounting plate 20 to make close contact with the workpiece surface. As the moving plate 18 moves along the set path, the brushes 21, through friction with the workpiece surface, meticulously clean the surface of the workpiece to be dispensed, removing dust, debris, etc., creating a clean and impurity-free working surface for subsequent dispensing operations and improving dispensing quality.

[0041] After the workpiece is fixed and cleaned, the dispensing assembly begins its work in an orderly manner. The rotating disk 12, serving as the horizontal adjustment mechanism for the robotic arm 13, can rotate from the top rear of the worktable 1. Through internal rotational drive devices, such as the motor 3 and gear transmission, the horizontal orientation of the robotic arm 13 is adjusted, allowing it to cover different areas above the worktable 1. The robotic arm 13 itself has multi-axis rotation capabilities. Each axis is driven by the motor 3 and uses joint linkage to flexibly move the dispensing head 14. Through precise path planning and motion control, the dispensing head 14 accurately moves to the position on the workpiece to be dispensed. Then, according to preset dispensing parameters, such as dispensing volume and speed, the dispensing head 14 precisely applies adhesive to the designated area of ​​the workpiece, completing the dispensing operation and achieving automated dispensing processing of the workpiece, meeting the high-efficiency and precise dispensing requirements in industrial production.

[0042] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A four-axis robot dispensing machine, comprising a worktable (1), characterized in that: A mounting plate 1 (2) is fixedly connected to the bottom left side of the workbench (1). A drive assembly for providing power to the device is fixedly connected to the top of the mounting plate 1 (2). Two sliding blocks 1 (5) are threadedly connected to the outside of the drive assembly. A connecting plate (6) is fixedly connected to the front side of each of the two sliding blocks 1 (5). A sliding block 2 (7) is fixedly connected to the front side of the connecting plate (6). A sliding plate (8) is fixedly connected to the top of both the sliding block 2 (7) and the sliding block 1 (5). A clamping plate (9) is fixedly connected to the outside of the sliding plate (8). A guide rod (10) is fixedly connected to the front inside of the workbench (1). Two sliding holes (11) are opened on the left and right sides of the top of the workbench (1). A dispensing assembly for dispensing glue to the workpiece is provided on the rear side of the top of the workbench (1).

2. The four-axis robot dispensing unit according to claim 1, characterized in that: The drive assembly includes a motor (3) and a bidirectional threaded rod (4). The bottom of the motor (3) is fixedly connected to the top of the mounting plate (2). The left side of the bidirectional threaded rod (4) is fixedly connected to the output end of the motor (3). The middle parts of the two sliding blocks (5) are threaded to the outside of the bidirectional threaded rod (4).

3. The four-axis robot dispensing unit according to claim 1, characterized in that: The top left and right sides of the workbench (1) are provided with moving components for adjusting the cleaning position of the workpiece. A moving plate (18) is fixedly connected to the adjacent side of the two moving components. The bottom left and right sides of the moving plate (18) are fixedly connected with adjustment components for adjusting according to the height of the workpiece. Multiple brushes (21) are provided at the bottom of the adjustment components.

4. A four-axis robot dispensing unit according to claim 1, characterized in that: The dispensing assembly includes a rotating disk (12) and a robotic arm (13). The bottom of the rotating disk (12) is located on the top rear side of the worktable (1). The bottom of the robotic arm (13) is fixedly connected to the top of the rotating disk (12). A dispensing head (14) is provided on the other side of the robotic arm (13).

5. A four-axis robot dispensing unit according to claim 1, characterized in that: The top of the sliding plate (8) is slidably connected inside the sliding hole (11), and the middle part of the sliding block (7) is slidably connected outside the guide rod (10).

6. A four-axis robot dispensing unit according to claim 3, characterized in that: The moving assembly includes four support columns (15) and two electric guide rails (16). The bottoms of two of the support columns (15) are fixedly connected to the top left side of the worktable (1), and the bottoms of the other two support columns (15) are fixedly connected to the top right side of the worktable (1). The bottom front and rear sides of the electric guide rails (16) are respectively fixedly connected to the tops of the two support columns (15). Sliding blocks (17) are slidably connected to the outside of the two electric guide rails (16). The moving plate (18) is fixedly connected to the outside of the two sliding blocks (17).

7. A four-axis robot dispensing unit according to claim 3, characterized in that: The adjustment assembly includes two electric telescopic rods (19) and a second mounting plate (20). The tops of the two electric telescopic rods (19) are fixedly connected to the bottom of the motion plate (18). The top of the second mounting plate (20) is fixedly connected to the output end of the two electric telescopic rods (19). The tops of the multiple brushes (21) are fixedly connected to the bottom of the second mounting plate (20).

8. A four-axis robot dispensing unit according to claim 1, characterized in that: The bottom four corners of the workbench (1) are fixedly connected with support legs, and the bottom of the clamping plate (9) is in contact with the top of the workbench (1).

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