Adaptive dispensing valve height adjustment mechanism

Abstract

This utility model belongs to the technical field of precision dispensing equipment and discloses an adaptive dispensing valve height adjustment mechanism, including a frame. An X-axis adjustment mechanism is mounted on the frame, a sliding seat is connected to the X-axis adjustment mechanism, a Y-axis adjustment mechanism is mounted on the sliding seat, and a guide block is connected to the Y-axis adjustment mechanism. The guide block is slidably connected to the front side of the sliding seat, and a mounting bracket is fixedly connected to the front side of the guide block. A Z-axis adjustment mechanism is mounted on the mounting bracket, and a lifting block is connected to the Z-axis adjustment mechanism. A dispensing valve body is mounted on the lifting block, and a CCD camera is mounted on one side of the dispensing valve body. A fume extraction pipe is located on one side of the CCD camera. By adjusting the position of the dispensing valve body through the X-axis, Y-axis, and Z-axis adjustment mechanisms, and cooperating with real-time detection by the CCD camera, the height of the dispensing valve body can be adaptively adjusted to meet the requirements of precision dispensing.

Description

Technical Field

[0001] This utility model belongs to the technical field of precision dispensing equipment, specifically an adaptive dispensing valve height adjustment mechanism. Background Technology

[0002] In the field of precision manufacturing, dispensing is a key process for sealing, connecting and insulating parts (such as sealant for mobile phone frames and encapsulation adhesive for power battery tabs). Dispensing accuracy (size and position consistency of adhesive dots) directly depends on the stability of the distance between the dispensing valve nozzle and the workpiece surface.

[0003] Meanwhile, the ball screws commonly used for height adjustment need to be lubricated regularly to reduce wear. However, existing equipment relies on manual maintenance, which can lead to problems such as screw jamming and decreased accuracy due to untimely maintenance. In addition, the glue mist and dust generated during the dispensing process can easily contaminate the CCD camera and the surface of the screw. Traditional protective covers can only block large particles of impurities, while fine glue particles can still contaminate the screw and CCD camera, requiring frequent manual cleaning and affecting production efficiency.

[0004] Therefore, an adaptive dispensing valve height adjustment mechanism is proposed to address the above problems. Utility Model Content

[0005] To address the problems mentioned in the background art, this utility model provides an adaptive dispensing valve height adjustment mechanism, which has the advantages of enabling adaptive adjustment of the dispensing valve body height to meet the requirements of precision dispensing, while also facilitating the maintenance and upkeep of the device components.

[0006] To achieve the above objectives, this utility model provides the following technical solution: an adaptive dispensing valve height adjustment mechanism, comprising a frame, an X-axis adjustment mechanism mounted on the frame, a sliding seat connected to the X-axis adjustment mechanism, a Y-axis adjustment mechanism mounted on the sliding seat, a guide block connected to the Y-axis adjustment mechanism, the guide block slidably connected to the front side of the sliding seat, a mounting bracket fixedly connected to the front side of the guide block, a Z-axis adjustment mechanism mounted on the mounting bracket, a lifting block connected to the Z-axis adjustment mechanism, a dispensing valve body mounted on the lifting block, a CCD camera mounted on one side of the dispensing valve body, a fume extraction pipe mounted on one side of the CCD camera, and a lead screw maintenance assembly mounted on one side of the Z-axis adjustment mechanism.

[0007] Preferably, both the X-axis adjustment mechanism and the Y-axis adjustment mechanism are composed of linear guide rails and linear motors, which are respectively mounted on the frame and the sliding seat.

[0008] Preferably, a grating ruler is provided on one side of the linear guide rail, and a slider matching the linear guide rail is provided on the sliding seat and guide block, and a reading head corresponding to the grating ruler is installed on the slider.

[0009] Preferably, the Z-axis adjustment mechanism includes a servo motor and a precision ball screw, and the lifting block is connected to the nut of the precision ball screw.

[0010] Preferably, one end of the smoke suction pipe is connected to an external vacuum cleaner via a flexible hose, and the other end of the smoke suction pipe faces the lens of the CCD camera.

[0011] Preferably, the lead screw maintenance assembly includes a positioning frame, a hydraulic cylinder, a ring frame, an oil reservoir, an oil outlet pipe, and an oil-absorbing cleaning pad. The positioning frame is fixed to one end of the lifting block, the hydraulic cylinder is fixed on the positioning frame, and the output end of the hydraulic cylinder is connected to the ring frame. The oil reservoir is located at the top of the positioning frame and above the ring frame. The oil outlet pipe is located on the inner wall of the ring frame, and the oil-absorbing cleaning pad is attached to the inner wall of the ring frame.

[0012] Preferably, the oil storage tank is connected to the annular frame via a pipe, and an oil injection pump is connected to the pipe.

[0013] Preferably, the annular frame matches the curvature of the precision ball screw, and a groove is provided on the oil-absorbing cleaning pad at a position that matches the oil nozzle of the oil outlet pipe.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0015] 1. This utility model adjusts the position of the dispensing valve body by setting the X-axis adjustment mechanism, Y-axis adjustment mechanism and Z-axis adjustment mechanism, and with the real-time detection of the CCD camera, it realizes the adaptive adjustment of the height of the dispensing valve body to meet the requirements of precision dispensing;

[0016] 2. This utility model, through the set lead screw maintenance component, can simultaneously clean and lubricate the surface of the lead screw when adjusting the height of the dispensing valve body, reducing downtime maintenance time by 90% and facilitating equipment maintenance;

[0017] 3. This utility model can remove glue mist and dust generated during the dispensing process in real time through the set smoke suction pipe, so as to avoid contaminating the lens, reduce the frequency of lens cleaning, and improve the service life of the device. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the sliding seat structure of this utility model;

[0020] Figure 3 This is a schematic diagram of the mounting bracket structure of this utility model;

[0021] Figure 4This is a schematic diagram of the screw maintenance component of this utility model;

[0022] Figure 5 This is a schematic diagram of the ring frame structure of this utility model.

[0023] In the diagram: 1. Frame; 2. X-axis adjustment mechanism; 3. Sliding seat; 4. Y-axis adjustment mechanism; 5. Guide block; 6. Mounting bracket;

[0024] 7. Z-axis adjustment mechanism; 71. Servo motor; 72. Precision ball screw;

[0025] 8. Lifting block; 9. Dispensing valve body; 10. CCD camera; 11. Smoke and dust extraction pipe;

[0026] Screw maintenance components; 121. Positioning bracket; 122. Hydraulic cylinder; 123. Ring bracket; 124. Oil reservoir; 125. Oil outlet pipe; 126. Oil absorption cleaning pad

[0027] 13. Linear guide rail; 14. Linear motor. Detailed Implementation

[0028] 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.

[0029] The following describes an embodiment of this utility model based on its overall structure.

[0030] like Figures 1 to 5As shown, this utility model provides an adaptive dispensing valve height adjustment mechanism, including a frame 1. An X-axis adjustment mechanism 2 is mounted on the frame 1. A sliding seat 3 is connected to the X-axis adjustment mechanism 2. A Y-axis adjustment mechanism 4 is mounted on the sliding seat 3. A guide block 5 is connected to the Y-axis adjustment mechanism 4. The guide block 5 is slidably connected to the front side of the sliding seat 3. A mounting bracket 6 is fixedly connected to the front side of the guide block 5. A Z-axis adjustment mechanism 7 is mounted on the mounting bracket 6. A lifting block 8 is connected to the Z-axis adjustment mechanism 7. A dispensing valve body 9 is mounted on the lifting block 8. The mounting bracket 6 also includes... A guide groove matching the lifting block 8 is provided. The lifting block 8 passes through the guide groove and is fixed to the dispensing valve body 9. It can play a guiding role when the dispensing valve body 9 is raised and lowered. A CCD camera 10 is installed on one side of the dispensing valve body 9. The CCD camera 10 is a 12-megapixel industrial camera with its lens facing the workpiece surface. The installation angle is parallel to the nozzle axis of the dispensing valve body 9. It can collect 3D contour data of the workpiece surface in real time. A fume suction pipe 11 is provided on one side of the CCD camera 10. A lead screw maintenance component 12 is provided on one side of the Z-axis adjustment mechanism 7.

[0031] In this embodiment, both the X-axis adjustment mechanism 2 and the Y-axis adjustment mechanism 4 are composed of a linear guide rail 13 and a linear motor 14. The linear guide rail 13 and the linear motor 14 are respectively mounted on the frame 1 and the sliding seat 3. The linear guide rail 13 is fixed to the frame 1 and the sliding seat 3 by bolts.

[0032] A grating ruler is provided on one side of the linear guide rail 13. A slider matching the linear guide rail 13 is provided on the sliding seat 3 and the guide block 5. A reading head corresponding to the grating ruler is installed on the slider. The reading head is fixed to the slider and reads the scale of the grating ruler as the slider moves.

[0033] The Z-axis adjustment mechanism 7 includes a servo motor 71 and a precision ball screw 72. The lifting block 8 is connected to the nut of the precision ball screw 72. The Z-axis adjustment mechanism 7 drives the lifting block 8 and the dispensing valve body 9 to rise and fall.

[0034] One end of the smoke suction pipe 11 is connected to an external vacuum cleaner via a flexible hose, and the other end of the smoke suction pipe 11 faces the lens of the CCD camera 10. The smoke suction pipe 11 is made of oil-resistant PVC flexible hose, and one end of it is connected to a rotatable universal joint. It is positioned 5cm in front of the lens of the CCD camera 10 to remove glue mist and dust generated during the dispensing process in real time.

[0035] The lead screw maintenance assembly 12 includes a positioning frame 121, a hydraulic cylinder 122, an annular frame 123, an oil reservoir 124, an oil outlet pipe 125, and an oil-absorbing cleaning pad 126. The positioning frame 121 is fixed to one end of the lifting block 8. The positioning frame 121 has an L-shaped structure, with one end fixed to the side of the lifting block 8 and the other end equipped with the hydraulic cylinder 122. The hydraulic cylinder 122 is fixed to the positioning frame 121, and its output end is connected to the annular frame 123. The oil reservoir 124 is located at the top of the positioning frame 121 and is positioned within the annular frame 123. Above, the oil outlet pipe 125 is set on the inner wall of the ring frame 123, and the oil-absorbing cleaning pad 126 is attached to the inner wall of the ring frame 123. When the ring frame 123 moves up and down, the oil-absorbing cleaning pad 126 wipes its surface in coordination with the rotation of the lead screw. The oil storage tank 124 is connected to the ring frame 123 through a pipe, and an oil injection pump is connected to the pipe. The arc of the ring frame 123 matches that of the precision ball screw 72. The oil-absorbing cleaning pad 126 has a groove at the position that matches the oil injection nozzle of the oil outlet pipe 125, so as not to affect the oil outlet pipe 125 injecting oil into the thread groove of the lead screw.

[0036] The servo motor, CCD camera, hydraulic cylinder, linear motor, and linear guide are existing technologies and will not be described in detail. Additionally, this utility model also includes a power supply, controller, and switch, which are not the main technical points of this patent and will not be described in detail. The wiring diagram of the motor in this utility model is common knowledge in the field, and its working principle is already known technology. The appropriate model is selected based on actual use; therefore, the control method and wiring layout of the motor will not be explained in detail.

[0037] The working principle and process of the adaptive dispensing valve height adjustment mechanism: A CCD camera 10 captures an image of the workpiece surface. An image algorithm calculates the height difference between the dispensing valve nozzle and the target point. The industrial control computer outputs a Z-axis adjustment command based on this height difference, driving the servo motor 71 to rotate forward. The lead screw nut then lowers the lifting block 8, bringing the dispensing valve body closer to the workpiece surface to meet precision dispensing requirements. When the Z-axis height adjustment is adjusted... If the axis movement exceeds the preset number of times or the interval time, the control system sends a signal to the hydraulic cylinder 122, driving the ring frame 123 to grip the precision ball screw 72. At this time, the oil pump starts, injecting the grease in the oil reservoir 124 into the thread groove of the screw through the oil outlet pipe 125. As the Z-axis adjustment machine 7 drives the lifting block 8 to rise and fall, the surface of the screw is wiped by the oil suction cleaning pad 126 to remove old oil and dust. After maintenance is completed, the hydraulic cylinder 122 retracts and the ring frame 123 resets, reducing downtime maintenance time by 90%, facilitating equipment maintenance. At the same time as dispensing, the dust and glue mist generated during the dispensing process can be removed in real time through the fume suction pipe 11, avoiding lens contamination, reducing the frequency of lens cleaning, and improving the service life of the device.

[0038] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0039] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An adaptive dispensing valve height adjustment mechanism comprising a frame (1), characterized in that: The frame (1) is provided with an X-axis adjustment mechanism (2), a sliding seat (3) is connected to the X-axis adjustment mechanism (2), a Y-axis adjustment mechanism (4) is provided on the sliding seat (3), a guide block (5) is connected to the Y-axis adjustment mechanism (4), the guide block (5) is slidably connected to the front side of the sliding seat (3), a mounting bracket (6) is fixedly connected to the front side of the guide block (5), a Z-axis adjustment mechanism (7) is provided on the mounting bracket (6), a lifting block (8) is connected to the Z-axis adjustment mechanism (7), a dispensing valve body (9) is installed on the lifting block (8), a CCD camera (10) is installed on one side of the dispensing valve body (9), a smoke suction pipe (11) is provided on one side of the CCD camera (10), and a screw maintenance assembly (12) is provided on one side of the Z-axis adjustment mechanism (7).

2. The self-adapting valve height adjustment mechanism of claim 1, wherein: The X-axis adjustment mechanism (2) and the Y-axis adjustment mechanism (4) are both composed of a linear guide rail (13) and a linear motor (14), which are respectively mounted on the frame (1) and the sliding seat (3).

3. The self-adapting valve height adjustment mechanism of claim 2, wherein: A grating ruler is provided on one side of the linear guide rail (13), and a slider matching the linear guide rail (13) is provided on the sliding seat (3) and the guide block (5), and a reading head corresponding to the grating ruler is installed on the slider.

4. The self-adapting valve height adjustment mechanism of claim 3, wherein: The Z-axis adjustment mechanism (7) includes a servo motor (71) and a precision ball screw (72), and the lifting block (8) is connected to the nut of the precision ball screw (72).

5. The self-adapting valve height adjustment mechanism of claim 4, wherein: One end of the smoke suction pipe (11) is connected to an external vacuum cleaner via a flexible hose, and the other end of the smoke suction pipe (11) faces the lens of the CCD camera (10).

6. The self-adapting valve height adjustment mechanism of claim 5, wherein: The lead screw maintenance assembly (12) includes a positioning frame (121), a hydraulic cylinder (122), a ring frame (123), an oil reservoir (124), an oil outlet pipe (125), and an oil-absorbing cleaning pad (126). The positioning frame (121) is fixed to one end of the lifting block (8). The hydraulic cylinder (122) is fixed on the positioning frame (121). The output end of the hydraulic cylinder (122) is connected to the ring frame (123). The oil reservoir (124) is located at the top of the positioning frame (121) and above the ring frame (123). The oil outlet pipe (125) is located on the inner wall of the ring frame (123). The oil-absorbing cleaning pad (126) is attached to the inner wall of the ring frame (123).

7. The self-adapting valve height adjustment mechanism of claim 6, wherein: The oil storage tank (124) is connected to the ring frame (123) via a pipe, and an oil injection pump is connected to the pipe.

8. The self-adapting valve height adjustment mechanism of claim 7, wherein: The arc of the ring frame (123) matches that of the precision ball screw (72), and the oil-absorbing cleaning pad (126) has a groove at the position that matches the oil nozzle of the oil outlet pipe (125).

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