Five-axis point glue machine
By combining motion and curing structure design of the five-axis dispensing machine, the problem of poor dispensing effect on complex structure products is solved, and a high-efficiency and stable dispensing process is achieved.
Patent Information
- Application Number
- CN202411994145.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-31
- Publication Date
- 2025-11-04
- Estimated Expiration
- 2044-12-31
AI Technical Summary
Existing five-axis dispensing machines have poor dispensing effect and are prone to glue droplet flow when dispensing glue to complex structure products, resulting in low production efficiency and inaccurate positioning.
The system employs an X-axis moving component, a Z-axis moving component, a Y-axis moving component, and an RU rotating component in conjunction with a vision inspection structure to achieve omnidirectional dispensing. The UV light is focused and diffused through a focusing ring and a curing lamp head in the curing structure to ensure that the dispensing material cures during the movement process.
It achieves accuracy and stability in all-around dispensing, avoids the dispensing material from flowing during rotation or movement, and improves dispensing efficiency and curing speed.
Smart Images

Figure CN119634164B_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of dispensing equipment, and in particular to a five-axis dispensing machine. Background Technology
[0002] Currently, XYZ three-axis dispensing machines are the most common on the market. Although these machines have automated some processes, they are not very adaptable to the workpieces they dispense. A single step can only complete dispensing on a plane or simple spatial curves, which not only greatly reduces production efficiency and dispensing efficiency, but also increases labor costs and causes inaccurate positioning. Therefore, when it is necessary to dispense glue to products with relatively complex structures, five-axis dispensing machines are usually used for precision dispensing.
[0003] A typical five-axis dispensing machine uses an X-axis left-right movement mechanism, a Z-axis up-down movement mechanism, an RX-axis rotation mechanism, an RZ-axis rotation mechanism, a vision system, a dispensing mechanism, and a Y-axis forward-backward movement mechanism. The Y-axis forward-backward movement mechanism is movably located below the Z-axis up-down movement mechanism and is connected to a tooling fixture to solve the above problems. However, because it requires multiple directional movements and rotational vibrations, the glue dots on the product after dispensing are prone to not completely solidifying and flowing, resulting in poor dispensing effect. Summary of the Invention
[0004] To address the aforementioned issues, this application provides a five-axis dispensing machine.
[0005] The five-axis dispensing machine provided in this application adopts the following technical solution:
[0006] A five-axis dispensing machine includes a dispensing base, a dispensing frame, an X-axis moving assembly, a Z-axis moving assembly, an RU rotating assembly, a Y-axis moving assembly, and a dispensing assembly. The dispensing frame and the Y-axis moving assembly are mounted on the dispensing base. The X-axis moving assembly is mounted on the dispensing frame, and the Z-axis moving assembly is connected to the moving end of the X-axis moving assembly. The RU rotating assembly is connected to the moving end of the Y-axis moving assembly, and a product is mounted on the RU rotating assembly. The dispensing assembly is connected to the moving end of the Z-axis moving assembly. The dispensing assembly includes a dispensing cylinder, a dispensing head, a vision inspection structure, and a curing structure. The dispensing cylinder provides storage and delivery of dispensing material and is connected to the moving end of the Z-axis moving assembly. The dispensing head is connected to the dispensing cylinder. The curing structure is mounted on the outer wall of the dispensing head and provides dispensing curing. The vision inspection structure is connected to the curing structure and provides identification of the dispensing trajectory and positioning.
[0007] By adopting the above technical solution, the X-axis and Z-axis moving components drive the dispensing component to move horizontally and vertically. The Y-axis moving component and RU rotating component change the product's front-to-back position and rotation angle, enabling the product to be dispensed from all directions and ensuring the accuracy of the dispensing position. During the dispensing process, the dispensing trajectory is identified and positioned by a visual inspection structure, so that the dispensing position is identified and positioned as the required dispensing position of the product changes continuously. Then, the dispensing tube delivers the dispensing material to the dispensing head, which dispenses the dispensing material onto the product surface. The curing structure allows the dispensing head to continuously dispense dispensing while simultaneously curing the dispensing material on the product surface, thereby ensuring the stability of the dispensing and preventing the dispensing material from flowing during rotation or movement.
[0008] Optionally, the curing structure includes a focusing ring and a plurality of curing lamp heads; the plurality of curing lamp heads provide UV light rays that are focused into a straight line, and the curing lamp heads are disposed within the focusing ring, with the plurality of UV light rays irradiating toward the dispensing head.
[0009] By adopting the above technical solution, during the dispensing process of the dispensing head moving up and down with the Z-axis moving component, several UV rays are emitted by the focusing ring and several curing lamps. The UV rays can cure the dispensing material on the surface of the product when the dispensing is completed. At the same time, by using the form of converging the light rays, the UV rays can avoid scattered irradiation, increase the luminous flux, and the simultaneous irradiation of the product by multiple UV rays can improve the curing efficiency and further accelerate the curing speed.
[0010] Optionally, the curing lamp heads are inclined within the focusing ring, so that when the UV rays irradiate towards the dispensing head, all the UV rays converge into a single point below the dispensing head.
[0011] By adopting the above technical solution, the point where the UV light converges is located below the dispensing head, so that the UV light does not come into contact with the dispensing head. This prevents the UV light from shining on the dispensing head when the dispensing head is dispensing the product, thus avoiding the UV light curing the dispensing point of the dispensing head and causing blockage.
[0012] Optionally, the focusing ring has an inner cavity for installation, and the inner cavity has a plurality of irradiation ports, with the curing lamp head corresponding to each irradiation port; the curing lamp head is located in the inner cavity for installation, and the irradiation direction is towards the irradiation port; the curing structure is also connected to an adjustment structure, the adjustment structure is connected to the curing lamp head, and the adjustment end is located at the dispensing head.
[0013] By adopting the above technical solution, the curing lamp head is located inside the mounting cavity, and the tilt angle of the curing lamp head can be adjusted by the adjustment structure, so as to adapt to different dispensing heads or dispensing positions of different products.
[0014] Optionally, the adjustment structure includes a hinge frame, a reset part, an adjustment part, and a drive part; the curing lamp head is hinged to the hinge frame; one end of the reset part is connected to the wall of the mounting cavity, and the other end is connected to the curing lamp head; the adjustment part is connected to the curing lamp head and extends outward through the focusing ring into the mounting cavity; the drive part is connected to the outer wall of the dispensing head and to the side of the adjustment part away from the focusing ring.
[0015] By adopting the above technical solution, the drive unit uniformly raises and lowers all adjustment parts along the extension direction of the dispensing head. During the raising and lowering process, all adjustment parts synchronously adjust the tilt angle of the curing lamp head along the hinge frame to adapt to different dispensing heads or dispensing products. At the same time, when the dispensing head rises and stops dispensing, the curing lamp head can be adjusted to continue irradiating the dispensing material, extending the irradiation time and improving the curing efficiency.
[0016] Optionally, the outer wall of the dispensing head is further provided with a heat insulation frame, and the driving unit is mounted on the heat insulation frame.
[0017] By adopting the above technical solution, heat is blocked by the heat insulation frame to ensure stable operation of the drive unit and extend its service life.
[0018] Optionally, the focusing ring has a guide opening on the side away from the reset part, and the adjustment part extends through the guide opening toward the driving part.
[0019] By adopting the above technical solution, the guide port provides a limiting and guiding function for the adjustment part, which can prevent the position of the adjustment part from shifting and avoid inconsistent irradiation angles of any curing lamp head.
[0020] Optionally, the outer wall of the focusing ring is also provided with a sensing part, which is electrically connected to an external controller, and the sensing end of the sensing part is aligned with the orientation of the dispensing head.
[0021] By adopting the above technical solution, the distance the dispensing head rises is measured in real time by the sensing unit, and then the controller sends a control command to the drive unit after calculating the distance data, so that the converging point of the curing lamp head can always irradiate the dispensing material, thus extending the irradiation time.
[0022] Optionally, the focusing ring is further provided with a reflector in the direction away from the irradiation port, and the mirror surface is uneven to provide diffuse reflection of the UV light.
[0023] By adopting the above technical solution, when the drive unit irradiates all the curing lamp heads toward the reflector through the adjustment unit, all UV rays are diffusely reflected, causing the focusing ring to scatter all the diffusely reflected UV rays toward the product, thereby expanding the irradiation area.
[0024] Optionally, the reflector has an inverted triangular mirror structure.
[0025] By adopting the above technical solution, the reflector has an inverted triangular mirror structure, which allows UV light to be reflected repeatedly. At the same time, the uneven mirror surface makes the diffuse reflection wider.
[0026] In summary, this application includes at least one of the following beneficial technical effects:
[0027] 1. The X-axis and Z-axis moving components drive the dispensing component to move horizontally and vertically. The Y-axis moving component and RU rotating component change the product's front-to-back position and rotation angle, enabling the product to be dispensed from all directions and ensuring the accuracy of the dispensing position. During the dispensing process, the dispensing trajectory is identified and positioned by a visual inspection structure, so that the dispensing position is identified and positioned as the required dispensing position of the product changes. Then, the dispensing tube delivers the dispensing material to the dispensing head, which dispenses the dispensing material onto the product surface. The curing structure cures the dispensing material on the product surface while the dispensing head continuously dispenses the dispensing material, thereby ensuring the stability of the dispensing and preventing the dispensing material from flowing during rotation or movement.
[0028] 2. During the dispensing process, the dispensing head moves up and down with the Z-axis component to dispense the product. The focusing ring and several curing lamps irradiate several UV rays. The UV rays can cure the dispensing material on the surface of the product after dispensing. At the same time, by converging the rays, the UV rays can avoid scattered irradiation and increase the luminous flux. Furthermore, the simultaneous irradiation of the product by multiple UV rays can improve curing efficiency and further accelerate the curing speed.
[0029] 3. The point where the UV light converges is located below the dispensing head, so that the UV light does not come into contact with the dispensing head. This prevents the UV light from shining on the dispensing head when the dispensing head is dispensing the product, thus avoiding the UV light curing the dispensing point of the dispensing head and causing blockage.
[0030] 4. The curing lamp head is located inside the mounting cavity, and the tilt angle of the curing lamp head can be adjusted using the adjustment structure, so as to adapt to different dispensing heads or dispensing positions of different products. Attached Figure Description
[0031] Figure 1 This is a three-dimensional structural schematic diagram of a dispensing machine in one embodiment of this application;
[0032] Figure 2 This is a three-dimensional structural schematic diagram of the dispensing assembly in some embodiments of this application;
[0033] Figure 3This is a schematic diagram of the first cross-sectional structure of the dispensing assembly in a side view direction in some embodiments of this application;
[0034] Figure 4 This is a schematic diagram of a second cross-sectional structure of the dispensing assembly in a side view direction in some embodiments of this application;
[0035] The labels in the attached diagram are as follows: 1. Dispensing base; 2. Dispensing frame; 3. X-axis moving assembly; 4. Z-axis moving assembly; 5. RU rotating assembly; 6. Y-axis moving assembly; 7. Dispensing assembly; 71. Dispensing cylinder; 72. Dispensing head; 721. Heat insulation frame; 73. Vision inspection structure; 74. Curing structure; 741. Focusing ring; 7411. Mounting cavity; 7412. Irradiation port; 7413. Guide port; 7414. Reflector; 742. Curing lamp head; 75. Adjustment structure; 751. Hinge frame; 752. Reset part; 753. Adjustment part; 754. Drive part; 755. Sensing part; 8. Controller. Detailed Implementation
[0036] The following specific examples illustrate the implementation methods of this application. Those skilled in the art can easily understand other advantages and effects of this application from the information disclosed herein. This application can also be implemented or applied through other different specific embodiments, and various details in this application can be modified or changed according to different viewpoints and application systems without departing from the spirit of this application. It should be noted that, unless otherwise specified, the embodiments and features in the embodiments of this application can be combined with each other.
[0037] The embodiments of this application will now be described in detail with reference to the accompanying drawings, so that those skilled in the art can easily implement the application. This application may be embodied in many different forms and is not limited to the embodiments described herein.
[0038] In this application, the terms "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics represented in connection with that embodiment or example, which are included in at least one embodiment or example of this application. Furthermore, the specific features, structures, materials, or characteristics represented may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate different embodiments or examples represented in this application, as well as features of different embodiments or examples.
[0039] Furthermore, the terms "first" and "second" are used only to indicate an objective and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the representation of this application, "multiple" means two or more, unless otherwise explicitly specified.
[0040] Throughout this specification, when it is said that a device is "connected" to another device, this includes not only "direct connection" but also "indirect connection" by placing other components in between. Furthermore, when it is said that a device "comprises" a certain constituent element, unless otherwise stated otherwise, this does not exclude other constituent elements, but rather implies that other constituent elements may be included.
[0041] The following is in conjunction with the appendix Figure 1 - Appendix Figure 4 This application will be described in further detail below.
[0042] This application discloses a five-axis dispensing machine.
[0043] A five-axis dispensing machine, reference Figure 1 As shown, it includes a dispensing base 1, a dispensing frame 2, an X-axis moving assembly 3, a Z-axis moving assembly 4, a RU rotating assembly 5, a Y-axis moving assembly 6, and a dispensing assembly 7. The dispensing frame 2 and the Y-axis moving assembly 6 are mounted on the dispensing base 1, and the X-axis moving assembly 3 is mounted on the dispensing frame 2. The X-axis moving assembly 3 and the Y-axis moving assembly 6 are used to provide dispensing position adjustment in the front-back, left-right and right directions during the dispensing process. The Z-axis moving assembly 4 is connected to the moving end of the X-axis moving assembly 3, so that the Z-axis moving assembly 4 can be driven by the moving end of the X-axis moving assembly 3 to move horizontally along the dispensing frame 2, while the moving end of the Z-axis moving assembly 4 can provide lifting and lowering in the vertical direction.
[0044] The RU rotating assembly 5 is connected to the moving end of the Y-axis moving assembly 6. The product is installed on the RU rotating assembly 5, which provides rotation of the R-axis and U-axis. The Y-axis moving assembly 6 can drive the RU rotating assembly 5 to move back and forth along the dispensing base 1. The rotating end of the RU rotating assembly 5 is equipped with a clamping component for product installation and connection, such as a mechanical claw or gripper. After the product is fixed by the mechanical claw or gripper, the RU rotating assembly 5 can drive the product to rotate along the R-axis and U-axis to adjust the dispensing position of the product.
[0045] The dispensing assembly 7 is connected to the moving end of the Z-axis moving assembly 4. The dispensing assembly 7 is used to dispense adhesive onto the product. The dispensing assembly 7 moves vertically up and down through the moving end of the Z-axis moving assembly 4. The Z-axis moving assembly 4 is moved horizontally (left and right) along the dispensing base 1 by the X-axis moving assembly 3, which allows the dispensing assembly 7 to change its horizontal position. The Z-axis moving assembly 4 provides lifting and lowering to dispense adhesive onto the product. The product is driven by the Y-axis moving assembly 6 and the RU rotating assembly 5 to move forward and backward along the dispensing base 1 and rotate along the rotation direction, thereby changing the dispensing position of the product to achieve the effect of five-axis dispensing and ensure the accuracy and integrity of the dispensing position.
[0046] Among them, the Y-axis moving component 6 and the X-axis moving component 3 can be driven by a chain belt, the Z-axis moving component 4 can be driven by a lead screw or a cylinder, and the RU-axis rotating component can be driven by a motor and a rotating shaft.
[0047] Among them, reference Figure 2 As shown, the dispensing assembly 7 includes a dispensing cylinder 71, a dispensing head 72, a vision inspection structure 73, and a curing structure 74. The dispensing cylinder 71 provides storage and delivery of dispensing materials. A small delivery pump or an external pressure structure can be installed on the dispensing cylinder 71 to provide sufficient pressure for dispensing.
[0048] The dispensing cylinder 71 is connected to the moving end of the Z-axis moving assembly 4, and the dispensing head 72 is connected to the dispensing cylinder 71, so that both the dispensing head 72 and the dispensing cylinder 71 can be raised and lowered by the moving end of the Z-axis moving assembly 4. The dispensing head 72 includes a heated electro-spray valve, which can heat and soften the dispensing material and increase the dispensing pressure. The curing structure 74 is installed on the outer wall of the dispensing head 72 and provides dispensing curing. The curing structure 74 can be cured by UV light. When the dispensing head 72 is dispensing, UV light irradiates the dispensing area, so that the dispensing material is cured quickly, preventing the dispensing material from falling or flowing due to incomplete solidification during product movement or rotation.
[0049] The visual inspection structure 73 is connected to the curing structure 74, providing identification of the dispensing trajectory and positioning. The visual inspection structure 73 can adopt a CCD recognition and positioning system, including a CCD recognition camera. The CCD recognition and positioning system is electrically connected to an external controller 8. The electrical connection can be an electrical signal connection, with the ability to receive and transmit signals. The external controller 8 issues control commands to the dispensing assembly 7 to accurately dispense the product based on the positioning information of the required dispensing position of the product through the CCD recognition and positioning system.
[0050] Specifically, the X-axis moving component 3 and the Z-axis moving component 4 drive the dispensing component 7 to move horizontally and vertically. The Y-axis moving component 6 and the RU rotating component 5 change the product's front-to-back position and rotation angle, enabling the product to be dispensed from all directions and ensuring the accuracy of the dispensing position. During the dispensing process, the visual detection structure 73 identifies and positions the dispensing trajectory, so that the dispensing position is identified and located even when the required dispensing position of the product changes continuously. Then, the dispensing tube 71 delivers the dispensing material to the dispensing head 72, which dispenses the dispensing material onto the product surface. The curing structure 74 cures the dispensing material on the product surface while the dispensing head 72 continuously dispenses the dispensing material, thereby ensuring the stability of the dispensing and preventing the dispensing material from flowing during rotation or movement.
[0051] Further reference Figure 3 As shown, the curing structure 74 includes a focusing ring 741 and a curing lamp head 742. The purpose of the focusing ring 741 is to fix a number of curing lamp heads 742. The focusing ring 741 has an inner cavity. The number of curing lamp heads 742 are arranged in a ring along the inner wall of the focusing ring 741. The number of curing lamp heads 742 do not disperse the light, but concentrate the light into a straight line of UV light. The number of UV light rays irradiate towards the dispensing head 72.
[0052] Specifically, during the dispensing process of the dispensing head 72 moving up and down with the Z-axis moving component 4, several UV rays are emitted by the focusing ring 741 and several curing lamp heads 742. The UV rays can cure the dispensing material on the surface of the product when the dispensing is completed. At the same time, by converging the light rays, the UV rays can avoid scattered irradiation, increase the luminous flux, and the simultaneous irradiation of the product by multiple UV rays can improve the curing efficiency and further accelerate the curing speed.
[0053] In some embodiments, a plurality of curing lamp heads 742 are inclinedly arranged within a focusing ring 741, so that when a plurality of UV rays irradiate toward the dispensing head 72, all UV rays converge to a single point below the dispensing head 72. After the UV rays converge to a single point, this point is the position where the dispensing head 72 dispenses adhesive onto the product. The inclined curing lamp heads 742 allow the UV rays to irradiate at an angle, thereby allowing all UV rays to converge along the ring shape of the focusing ring 741 toward the position below the dispensing head 72. At the same time, the converged point is located below the dispensing head 72, so that the UV rays do not come into contact with the dispensing head 72. This prevents the UV rays from irradiating the dispensing head 72 when it is dispensing adhesive onto the product, thus avoiding the UV rays curing the dispensing point of the dispensing head 72 and causing blockage of the dispensing head 72.
[0054] refer to Figure 3 As shown, the dashed line simulating UV light at curing lamp head 472 extends to the convergence point below the dispensing head.
[0055] Further reference Figure 4 As shown, the focusing ring 741 has an installation cavity 7411, and the installation cavity 7411 has a number of irradiation ports 7412. The number of curing lamp heads 742 is the same as the number of irradiation ports 7412, and they correspond one-to-one with the irradiation ports 7412. The curing lamp heads 742 are located inside the installation cavity 7411, and the irradiation direction is towards the irradiation port 7412, so that the irradiated UV light can irradiate from the irradiation port 7412 towards the bottom of the dispensing head 72.
[0056] refer to Figure 4 As shown, the curing structure 74 is also connected to an adjustment structure 75. The adjustment structure 75 is connected to the curing lamp head 742, and the adjustment end is located at the dispensing head 72. The adjustment structure 75 is used to adjust the angle of the curing lamp head 742, so the adjustment end is located at the curing lamp head 742.
[0057] Specifically, the curing lamp head 742 is located inside the mounting cavity 7411, and the tilt angle of the curing lamp head 742 can be adjusted by the adjustment structure 75, so as to adapt to different dispensing heads 72 or different products dispensing positions. For example, if the product surface is uneven, the angle of the curing lamp head 742 can be adjusted to match the product structure.
[0058] In addition, when the dispensing head 72 rises with the moving end of the Z-axis moving component 4, the tilt angle of the curing lamp head 742 can be adjusted by the curing lamp head 742, so that the curing lamp head 742 continues to cure the product when the dispensing head 72 rises, extending the curing time and improving the stability of the cured dispensing material.
[0059] Further, refer to Figure 4 As shown, the adjustment structure 75 includes a hinge frame 751, a reset part 752, an adjustment part 753, and a drive part 754; the curing lamp head 742 is hinged to the hinge frame 751, so that the curing lamp head 742 can rotate along the hinge frame 751 to tilt and adjust the irradiation angle of the curing lamp head 742.
[0060] One end of the reset part 752 is connected to the wall of the mounting cavity 7411, and the other end is connected to the curing lamp head 742. The reset part 752 can be a spring, which can apply a reset force to the curing lamp head 742, so that the curing lamp head 742 can restore its tilt angle.
[0061] The adjusting part 753 is connected to the curing lamp head 742 and extends outward through the focusing ring 741 to the inner cavity 7411. The adjusting part 753 can be a pull rope or pull wire, and the material can be metal to ensure the stability of the connection. The driving part 754 is connected to the outer wall of the dispensing head 72 and to the side of the adjusting part 753 away from the focusing ring 741. The driving part 754 can include at least two sets of electric push rods or cylinders, and the telescopic ends of the electric push rods or cylinders are connected to... The lifting ring is sleeved on the dispensing head 72, allowing it to be driven by an electric push rod or a cylinder to move up and down along the dispensing head 72. When the adjusting part 753 is a pull rope or pull wire, one end is tied to the curing lamp head 742 and the other end is tied to the lifting ring. When the electric push rod or cylinder drives the lifting ring to move up and down, the adjusting part 753 drives all the curing lamp heads 742 to rotate along the hinge frame 751, thereby achieving the function of uniformly adjusting the tilt angle of the curing lamp heads 742.
[0062] Specifically, the drive unit 754 uniformly raises and lowers all adjustment units 753 along the extension direction of the dispensing head 72. During the raising and lowering process, all adjustment units 753 synchronously adjust the tilt angle of the curing lamp head 742 along the hinge frame 751 to adapt to different dispensing heads 72 or dispensing products. At the same time, when the dispensing head 72 rises and stops dispensing, the tilt angle of the curing lamp head 742 can be adjusted to continue irradiating the dispensing material, prolonging the irradiation time and improving the curing efficiency.
[0063] Since the dispensing material delivered by the dispensing head 72 is at a high temperature, it is easily conducted to the drive unit 754 through heat transfer. The drive unit 754 is easily damaged by heat. Therefore, a heat insulation frame 721 is provided on the outer wall of the dispensing head 72. The drive unit 754 is installed on the heat insulation frame 721. The heat insulation frame 721 blocks the heat to ensure the stable operation of the drive unit 754 and extend the service life of the drive unit 754.
[0064] Furthermore, a guide opening 7413 is provided on the side of the focusing ring 741 away from the reset part 752. The adjustment part 753 extends through the guide opening 7413 toward the drive part 754. The guide opening 7413 provides a limiting and guiding function for the adjustment part 753, which can prevent the position of the adjustment part 753 from shifting and prevent inconsistent irradiation angles of any curing lamp head 742.
[0065] In some embodiments, reference Figure 4As shown, the outer wall of the focusing ring 741 is also provided with a sensing unit 755. The sensor is electrically connected to the external controller 8. The sensing end of the sensing unit 755 is aligned with the orientation of the dispensing head 72. The sensing unit 755 can be a distance sensor, a laser rangefinder, etc., used to detect the distance from the focusing ring 741 to the product surface. After sending the detection data to the backend controller 8, the controller 8 uses the detection data and the distance measurement algorithm to determine the angle at which the curing lamp head 742 needs to be tilted. Only then can the converging points irradiated by all the curing lamp heads 742 be accurately focused on the dispensing point of the product. The controller 8 then sends a control command to the drive unit 754, which drives the adjustment unit 753 to adjust the tilt angle of all the curing lamp heads 742.
[0066] This method is faster and more adaptable to various products. Even after dispensing is finished or during dispensing intervals, such as when the dispensing head 72 rises, the distance the dispensing head 72 rises can be measured in real time by the sensing unit 755. The controller 8 then uses this distance data to calculate and send control commands to the drive unit 754, so that the converging point of the curing lamp head 742 can always irradiate the dispensing material, thus extending the irradiation time.
[0067] On the other hand, in addition to converging all UV rays into a single point, if the dispensing area is large and requires irradiation over a large area or wide range, the drive unit 754 can continue to tilt, causing the convergence points of all UV rays to be staggered, thereby scattering the UV rays.
[0068] In addition to using a method that staggers the convergence points of all UV rays, the following methods can also be used.
[0069] A reflector 7414 is provided in the direction away from the irradiation port 7412 of the focusing ring 741. The reflector 7414 is a multi-prism with an uneven surface, which can diffusely reflect UV light. When the drive unit 754 irradiates all the curing lamp heads 742 toward the reflector 7414 through the adjustment unit 753, all UV light is diffusely reflected, so that the focusing ring 741 scatters all the diffusely reflected UV light toward the product, thereby expanding the irradiation area.
[0070] Among them, the reflector 7414 has an inverted triangular mirror structure. The inverted triangular mirror structure of the reflector 7414 can make UV light reflect repeatedly. At the same time, the uneven mirror surface makes the diffuse reflection range wider.
[0071] The embodiments described in this specific implementation are preferred embodiments of this application and are not intended to limit the scope of protection of this application. Identical components are represented by the same reference numerals. Therefore, all equivalent changes made to the structure, shape, and principle of this application should be covered within the scope of protection of this application.
Claims
1. A five-axis dispensing machine, comprising a dispensing base (1), a dispensing frame (2), an X-axis moving assembly (3), a Z-axis moving assembly (4), an RU rotating assembly (5), a Y-axis moving assembly (6), and a dispensing assembly (7); the dispensing frame (2) and the Y-axis moving assembly (6) are mounted on the dispensing base (1); the X-axis moving assembly (3) is mounted on the dispensing frame (2), and the Z-axis moving assembly (4) is connected to the moving end of the X-axis moving assembly (3); the RU rotating assembly (5) is connected to the moving end of the Y-axis moving assembly (6), and a product is mounted on the RU rotating assembly (5); the dispensing assembly (7) is connected to the moving end of the Z-axis moving assembly (4), characterized in that, The dispensing assembly (7) includes a dispensing cylinder (71), a dispensing head (72), a vision inspection structure (73), and a curing structure (74); the dispensing cylinder (71) provides storage and delivery of dispensing material and is connected to the moving end of the Z-axis moving assembly (4); the dispensing head (72) is connected to the dispensing cylinder (71); the curing structure (74) is installed on the outer wall of the dispensing head (72) and provides dispensing curing; the vision inspection structure (73) is connected to the curing structure (74) and provides identification of the dispensing trajectory and positioning; wherein, the curing structure (74) includes a focusing ring (741) and several curing lamp heads (742); the several curing lamp heads (742) provide UV light that is focused into a straight line, and the The curing lamp head (742) is disposed within the focusing ring (741), and several UV rays irradiate towards the dispensing head (72). The curing lamp heads (742) are positioned at an angle within the focusing ring (741), such that when the UV rays irradiate towards the dispensing head (72), all the UV rays converge to a single point below the dispensing head (72). An installation cavity (7411) is formed within the focusing ring (7411), and the installation cavity (7411) has several irradiation ports (7412). Each curing lamp head (742) corresponds to one of the irradiation ports (7412). The curing lamp head (742) is located within the installation cavity (7411), and its irradiation direction is towards the dispensing head (72). The irradiation port (7412) is described; the curing structure (74) is also connected to an adjustment structure, which is connected to the curing lamp head (742), and the adjustment end is located at the dispensing head (72); the adjustment structure includes a hinge frame (751), a reset part (752), an adjustment part (753), and a drive part (754); the curing lamp head (742) is hinged to the hinge frame (751); one end of the reset part (752) is connected to the wall of the mounting cavity (7411), and the other end is connected to the curing lamp head (742); the adjustment part (753) is connected to the curing lamp head (742); the outer wall of the dispensing head (72) is also provided with a heat insulation frame (721), and the drive part (754) is installed... The heat insulation frame (721) blocks heat; the focusing ring (741) has a guide opening (7413) on the side away from the reset part (752), and the adjustment part (753) extends through the guide opening (7413) to the drive part (754); the drive part (754) includes at least two sets of electric push rods or cylinders, and the extension end of the electric push rod or cylinder is connected to a lifting ring. The lifting ring is sleeved on the dispensing head (72). The lifting ring is driven by the electric push rod or cylinder to move up and down along the dispensing head (72). The lifting ring is connected to the adjustment part (753), thereby driving all curing lamp heads (742) to rotate along the hinge frame (751) and uniformly adjust the tilt angle of the curing lamp heads (742);The curing lamp head (742) directs the UV light at an angle, allowing all UV light rays to converge along the focusing ring (741) towards the area below the dispensing head (72). The convergence point is located below the dispensing head (72), preventing the UV light rays from contacting or irradiating it. A reflector (7414) is also provided on the focusing ring (741) away from the irradiation port (7412). The reflector (7414) is located above and close to the dispensing point of the dispensing head (72), and its surface is uneven to provide diffuse reflection of the UV light.
2. A five-axis dispensing machine according to claim 1, characterized in that, The outer wall of the focusing ring (741) is also provided with a sensing part (755), which is electrically connected to the external controller (8), and the sensing end of the sensing part (755) is aligned with the orientation of the dispensing head (72).
3. A five-axis dispensing machine according to claim 1, characterized in that, The reflector (7414) has an inverted triangular mirror structure.
Citation Information
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