CN220716485U - High-precision dispensing mechanism - Google Patents

Abstract

The utility model discloses a high-precision dispensing mechanism with visual positioning, dispensing positioning and precise dispensing quantity control. The utility model comprises a three-axis gantry assembly and a dispensing vertical plate connected with the three-axis gantry assembly, wherein the front end of the dispensing vertical plate is provided with a dispensing valve assembly, two sides of the dispensing vertical plate are respectively provided with a glue weighing device and a laser needle alignment device which is arranged at one end of the glue weighing device, the glue dispensing camera assembly is used for shooting the position of a product to be dispensed, the height sensor is used for detecting Z-axis coordinate information of the product, which is away from the dispensing valve assembly, the laser needle alignment device is used for aligning coordinate information of an X-axis and a Y-axis of a dispensing needle nozzle on the dispensing valve assembly, and the glue weighing device is used for controlling the dispensing amount of the dispensing valve assembly. The utility model is applied to the technical field of dispensing equipment.

Description

A high-precision dispensing mechanism

Technical Field

The utility model relates to a glue dispensing mechanism, in particular to a high-precision glue dispensing mechanism.

Background technique

In industrial production, dispensing is needed in many places, such as integrated circuits, semiconductor packaging, printed circuit boards, color LCD screens, electronic components, automotive parts, etc. The existing technology generally adopts manual dispensing or semi-automatic dispensing, but some precision parts have high requirements for the dispensing position and dispensing amount. For example, the existing automotive laser radar products need to be processed by dispensing in many places during the production process, but the existing manual dispensing or semi-automatic dispensing is prone to excessive or insufficient dispensing, and the dispensing position accuracy is not up to standard, which affects the overall product accuracy requirements and causes the product quality to be substandard.

Utility Model Content

The technical problem to be solved by the utility model is to overcome the deficiencies of the prior art and provide a high-precision glue dispensing mechanism with visual positioning, glue dispensing positioning and precise control of glue dispensing amount.

The technical solution adopted by the utility model is: the utility model includes a three-axis gantry assembly and a dispensing plate connected to the three-axis gantry assembly, a dispensing valve assembly is arranged at the front end of the dispensing plate, a height sensor and a dispensing camera module are arranged on both sides of the dispensing plate, a glue weighing device and a laser needle aligner connected to one end of the glue weighing device are arranged below the three-axis gantry assembly, the dispensing camera module is used to photograph the position of the product to be dispensed, the height sensor is used to detect the Z-axis coordinate information of the product's distance from the dispensing valve assembly, the laser needle aligner is used to align the X-axis and Y-axis coordinate information of the dispensing needle nozzle on the dispensing valve assembly, and the glue weighing device is used to control the glue output of the dispensing valve assembly.

Furthermore, the three-axis gantry assembly includes two symmetrically arranged vertical frames, a Y-axis moving module is arranged between the two vertical frames, an X-axis moving module is arranged on the Y-axis moving module, a Z-axis moving module is arranged on the X-axis moving module, the dispensing vertical plate is installed on the Z-axis moving module, the Y-axis moving module, the X-axis moving module and the Z-axis moving module are all provided with moving sensing sheets, and in-place sensors compatible with the moving sensing sheets are all provided at the initial and terminal ends of the Y-axis moving module, the X-axis moving module and the Z-axis moving module.

Furthermore, the dispensing valve assembly includes a dispensing valve, a dispensing gun barrel and a dispensing needle nozzle. The dispensing valve is installed at the front end of the dispensing vertical plate, the dispensing gun barrel is installed at the front end of the dispensing valve, and the lower end of the dispensing gun barrel is connected to the lower end of the dispensing valve, the upper end of the dispensing gun barrel is connected to the glue weigher through a rubber hose, and the dispensing needle nozzle is installed at the bottom of the dispensing valve.

Furthermore, a glue dispensing bottom plate is arranged below the two vertical frames, sealing plates are arranged at both ends of the glue dispensing bottom plate, a glue dispensing top plate is arranged between the upper ends of the two sealing plates, the glue weigher is installed on the glue dispensing bottom plate and passes through the glue dispensing top plate, and the laser needle aligner is arranged on one side of the glue dispensing top plate.

Furthermore, the dispensing camera module includes a camera fixing plate, a CCD camera, a protective cover and a light source. The camera fixing plate is installed on one side of the dispensing vertical plate, the CCD camera is fixed to the side end of the camera fixing plate, the protective cover is used to cover the CCD camera, and the light source is installed on the side end of the camera fixing plate and is located below the CCD camera.

Furthermore, a lifter and a UV curing device connected to the lifter are provided on the back of the glue dispensing vertical plate.

Furthermore, the high-precision dispensing mechanism also includes an MCU controller, and the three-axis gantry assembly, the dispensing valve assembly, the height sensor, the dispensing camera module, the glue weigher, the laser needle alignment device and the UV curing device are all electrically connected to the MCU controller.

The beneficial effects of the utility model are: 1. The use of a three-axis gantry assembly with a dispensing valve assembly and a dispensing camera module can accurately move to the dispensing position for dispensing, thereby improving the precision control of the product's dispensing position; 2. The use of a laser needle alignment device can effectively position the dispensing needle nozzle, effectively avoiding the position deviation caused by long-term use of the dispensing needle nozzle, or the coordinate deviation that occurs when the dispensing needle nozzle is replaced, and cooperating with a height sensor to obtain the Z-axis coordinate, so that the X-axis, Y-axis and Z-axis coordinate information of the dispensing needle nozzle and the product can be accurately controlled, thereby improving the accuracy of dispensing; 3. The use of a glue weigher in conjunction with the dispensing valve assembly can accurately control the amount of glue dispensed each time, thereby avoiding the situation where the amount of glue dispensed is too large or too small and affects the product quality.

BRIEF DESCRIPTION OF THE DRAWINGS

Fig. 1 is a schematic diagram of the structure of the utility model;

Fig. 2 is a schematic diagram of the structure of a three-axis gantry assembly;

Figure 3 is a diagram showing the structure of the front mounting components of the dispensing vertical plate;

FIG4 is a schematic diagram of the installation structure between the glue weigher and the laser needle alignment device;

FIG. 5 is an enlarged schematic diagram of portion A in FIG. 2 .

Detailed ways

As shown in Figures 1 to 5, in this embodiment, the utility model includes a three-axis gantry assembly 1 and a dispensing plate 2 connected to the three-axis gantry assembly 1, a dispensing valve assembly 3 is arranged at the front end of the dispensing plate 2, and a height sensor 4 and a dispensing camera module 5 are respectively arranged on both sides of the dispensing plate 2. The model of the height sensor 4 is Keyence IL-S065 sensor, and a glue weigher 6 and a laser needle aligner 7 connected to one end of the glue weigher 6 are arranged below the three-axis gantry assembly 1. The dispensing camera module 5 is used to photograph the position of the product to be dispensed, the height sensor 4 is used to detect the Z-axis coordinate information of the product from the dispensing valve assembly 3, the laser needle aligner 7 is used to align the X-axis and Y-axis coordinate information of the dispensing needle nozzle 31 on the dispensing valve assembly 3, and the glue weigher 6 is used to control the glue output of the dispensing valve assembly 3.

In this embodiment, the three-axis gantry assembly 1 includes two symmetrically arranged vertical frames 11, a Y-axis moving module 12 is arranged between the two vertical frames 11, an X-axis moving module 13 is arranged on the Y-axis moving module 12, a Z-axis moving module 14 is arranged on the X-axis moving module 13, the dispensing vertical plate 2 is installed on the Z-axis moving module 14, the Y-axis moving module 12, the X-axis moving module 13 and the Z-axis moving module 14 are all provided with moving sensing sheets 15, and in-position sensors 16 adapted to the moving sensing sheets 15 are all arranged at the initial and terminal ends of the Y-axis moving module 12, the X-axis moving module 13 and the Z-axis moving module 14.

In this embodiment, the dispensing valve assembly 3 adopts the model of Musashi MSD3-HD-1 dispensing valve, and the dispensing valve assembly 3 includes a dispensing valve 32, a dispensing gun barrel 33 and a dispensing needle nozzle 31. The dispensing valve 32 is installed at the front end of the dispensing vertical plate 2, and the dispensing gun barrel 33 is installed at the front end of the dispensing valve 32, and the lower end of the dispensing gun barrel 33 is connected to the lower end of the dispensing valve 32, the upper end of the dispensing gun barrel 33 is connected to the glue weighing device 6 through a rubber hose, and the glue output of the dispensing gun barrel 33 is controlled by the glue weighing device 6, and the dispensing needle nozzle 31 is detachably installed at the bottom of the dispensing valve 32.

In this embodiment, a glue dispensing bottom plate 8 is arranged below the two vertical frames 11, and sealing plates 9 are arranged at both ends of the glue dispensing bottom plate 8. A glue dispensing top plate 10 is arranged between the upper ends of the two sealing plates 9. The glue weigher 6 is installed on the glue dispensing bottom plate 8 and passes through the glue dispensing top plate 10. The laser needle aligner 7 is arranged on one side of the glue dispensing top plate 10.

In this embodiment, the dispensing camera module 5 includes a camera fixing plate 51, a CCD camera 52, a protective cover 53 and a light source 54. The camera fixing plate 51 is installed on one side of the dispensing vertical plate 2, and the CCD camera 52 is fixed to the side end of the camera fixing plate 51. The protective cover 53 is used to cover the CCD camera 52. The light source 54 is installed on the side end of the camera fixing plate 51 and is located below the CCD camera 52. In this design, the CCD camera 52 can be used to capture the coordinate information of the product dispensing position, and the product is placed in the carrier below the three-axis gantry assembly 1.

In this embodiment, a lifter and a UV curing device connected to the lifter are provided on the back of the glue dispensing vertical plate 2. The lifter is used to drive the UV curing device to descend and directly cure the glue at the glue dispensing position of the product after glue dispensing.

In this embodiment, the high-precision dispensing mechanism also includes an MCU controller, and the three-axis gantry assembly 1, the dispensing valve assembly 3, the height sensor 4, the dispensing camera module 5, the glue weigher 6, the laser needle 7 and the UV curing device are all electrically connected to the MCU controller.

In this embodiment, the working process of the utility model is: first, the XY axis coordinates of the glue dispensing needle nozzle 31 are positioned by the laser needle 7, and then the CCD camera 52 is driven by the three-axis gantry assembly 1 to move to the top of the product for shooting, and the glue dispensing position coordinates of the product are calculated through the captured image, and then the height sensor 4 is driven by the three-axis gantry assembly 1 to move to the top of the product to locate the Z axis coordinates, and then the glue dispensing valve assembly 3 is driven by the three-axis gantry assembly 1 to dispense glue on the product, and the glue dispensing amount is controlled by the glue weigher 6, so that precise glue dispensing operations can be performed.

The utility model is applied to the technical field of glue dispensing equipment.

Although the embodiments of the present invention are described with practical solutions, they do not constitute limitations on the meaning of the present invention. For those skilled in the art, it is obvious to modify the implementation scheme and combine it with other solutions based on this description.

Claims (7)

1. A high accuracy point gum machine constructs, its characterized in that: the automatic glue dispensing machine comprises a three-axis gantry assembly (1) and a glue dispensing vertical plate (2) connected with the three-axis gantry assembly (1), wherein a glue dispensing valve assembly (3) is arranged at the front end of the glue dispensing vertical plate (2), a height sensor (4) and a glue dispensing camera module (5) are respectively arranged on two sides of the glue dispensing vertical plate (2), a glue weighing device (6) and a laser needle alignment device (7) for one end of the glue weighing device (6) are arranged below the three-axis gantry assembly (1), the glue dispensing camera module (5) is used for shooting the position of a product to be dispensed, the height sensor (4) is used for detecting the distance of the product, the Z-axis coordinate information of the glue dispensing valve assembly (3), the laser needle alignment device (7) is used for aligning the X-axis and Y-axis coordinate information of a glue dispensing needle mouth (31) on the glue dispensing valve assembly (3), and the glue weighing device (6) is used for controlling the glue dispensing quantity of the glue dispensing valve assembly (3).

2. The high-precision dispensing mechanism of claim 1, wherein: the three-axis gantry assembly (1) comprises two symmetrically arranged vertical frames (11), Y-axis moving modules (12) are arranged between the vertical frames (11), X-axis moving modules (13) are arranged on the Y-axis moving modules (12), Z-axis moving modules (14) are arranged on the X-axis moving modules (13), the dispensing vertical plates (2) are arranged on the Z-axis moving modules (14), moving induction plates (15) are arranged on the Y-axis moving modules (12), and the Y-axis moving modules (13) and the Z-axis moving modules (14), and in-place sensors (16) matched with the moving induction plates (15) are arranged at the initial ends and the tail ends of the Y-axis moving modules (12) and the Z-axis moving modules (14).

3. The high-precision dispensing mechanism of claim 1, wherein: the dispensing valve assembly (3) comprises a dispensing valve (32), a dispensing gun barrel (33) and a dispensing needle nozzle (31), the dispensing valve (32) is arranged at the front end of the dispensing vertical plate (2), the dispensing gun barrel (33) is arranged at the front end of the dispensing valve (32), the lower end of the dispensing gun barrel (33) is communicated with the lower end of the dispensing valve (32), the upper end of the dispensing gun barrel (33) is connected with the glue weighing device (6) through a rubber tube, and the dispensing needle nozzle (31) is arranged at the bottom of the dispensing valve (32).

4. The high-precision dispensing mechanism of claim 2, wherein: the lower part between two riser (11) is provided with some gluey bottom plate (8), the both ends of some gluey bottom plate (8) all are provided with shrouding (9), two be provided with some gluey roof (10) between the upper end of shrouding (9), glue weight ware (6) install in on some gluey bottom plate (8) and wear out in some gluey roof (10), laser to needle ware (7) set up in one side of some gluey roof (10).

5. The high-precision dispensing mechanism of claim 1, wherein: the dispensing camera module (5) comprises a camera fixing plate (51), a CCD camera (52), a protection cover (53) and a light source (54), wherein the camera fixing plate (51) is installed on one side of the dispensing vertical plate (2), the CCD camera (52) is fixed on the side end of the camera fixing plate (51), the protection cover (53) is used for covering the CCD camera (52), and the light source (54) is installed on the side end of the camera fixing plate (51) and located below the CCD camera (52).

6. The high-precision dispensing mechanism of claim 1, wherein: the back of the glue dispensing vertical plate (2) is provided with a lifter and a UV curing device connected with the lifter.

7. The high-precision dispensing mechanism of claim 6, wherein: the high-precision dispensing mechanism further comprises an MCU controller, and the triaxial gantry assembly (1), the dispensing valve assembly (3), the height sensor (4), the dispensing camera module (5), the glue weighing device (6), the laser needle aligning device (7) and the UV curing device are electrically connected with the MCU controller.