A vacuum adsorption pickup device for graduated text

Abstract

This utility model discloses a vacuum adsorption pickup device for graduated text, belonging to the technical field of automated pickup equipment. It includes a base and extension plates fixedly connected to both sides of its upper end, with a slidable workpiece-bearing sliding plate disposed between the extension plates. A U-shaped support frame is connected to the middle of the base via a hydraulic unit, and an inverted U-shaped sliding frame is slidably connected to the support frame via a limiting groove. This sliding frame is driven laterally by an X-axis adjustment component, while a Y-axis adjustment component at its lower end drives a connecting block to move longitudinally. An adsorption unit is installed at the bottom of the connecting block. The adsorption unit integrates a negative pressure generator and a controller, and a flexible adsorption head is located at its bottom. Through the multi-axis precision coordination of hydraulic drive and servo motor drive, precise positioning of the adsorption head in three-dimensional space is achieved. Combined with an intelligent control system based on negative pressure feedback and a contour-following support fixture, it can efficiently, stably, and non-destructively complete the pickup and transfer of various precision graduated text.

Description

Technical Field

[0001] This utility model belongs to the field of automated pickup equipment technology, specifically relating to a vacuum adsorption pickup device for graduated text. Background Technology

[0002] Vacuum adsorption pickup devices are devices that use vacuum technology to adsorb and transport objects. Their core principle is to achieve adsorption by creating an internal and external pressure difference. They are widely used in precision equipment assembly, electronic component processing and other scenarios.

[0003] In the fields of precision manufacturing and instrument assembly, the pickup and transfer of graduated markings has always been an operation with extremely high requirements for precision and reliability. Traditional manual operation methods suffer from low efficiency, poor consistency, and easy damage to fine graduations; while conventional mechanical clamping or pneumatic adsorption devices often fail to meet the requirements for non-destructive pickup of high-precision markings, especially for tiny or irregularly shaped parts, due to insufficient positioning accuracy, poor adaptability, or imprecise adsorption force control. In addition, existing equipment often lacks flexible and adjustable spatial positioning capabilities, making it difficult to quickly adapt to workpieces of different sizes or arrangements.

[0004] Therefore, there is a need for a highly efficient automated pickup device that can achieve multi-axis precision adjustment, has controllable negative pressure adsorption capability, and can adapt to various sizes of scale text. Utility Model Content

[0005] The purpose of this invention is to provide a vacuum adsorption pickup device for graduated text, so as to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a vacuum adsorption pickup device for graduated text, comprising a base, a sliding groove at the upper end of the base, a hydraulic unit fixedly connected to the middle of the sliding groove, a support frame fixedly connected to the upper end of the hydraulic shaft of the hydraulic unit, and extension plates fixedly connected to both sides of the upper end of the base. A base plate is fixedly connected to the middle of the opposite sides of the symmetrical extension plates, and a sliding plate is slidably connected to the upper end of the base plate. The support frame is U-shaped, and limiting grooves are provided in the middle of the opposite surfaces on both sides of the support frame. An inverted U-shaped sliding frame is slidably connected to the upper end of both sides of the support frame. The upper end of the sliding frame is fixedly connected to the lower end of the first servo motor of the X-axis adjustment assembly. The other end of the servo motor is connected to a synchronous belt via a curved surface. The other end of the synchronous belt passes through the upper end of the sliding frame and is engaged with the middle of the driven shaft. The lower end of the sliding frame is provided with a Y-axis adjustment assembly, which includes a second servo motor and a connecting block. The outer surface of the second output shaft of the second servo motor is provided with an external thread and is threadedly connected to the middle of the connecting block. Both sides of the connecting block are slidably connected to the outer surface of the middle of the guide post. The two ends of the guide post are respectively fixedly connected to the two sides of the lower end of the sliding frame. The lower end of the connecting block is fixedly connected to the upper end of the housing of the adsorption unit. The two sides and the middle of the housing are respectively provided with symmetrical negative pressure generators or controllers. The lower end of the controller is provided with a cavity, and the lower end of the cavity is equipped with an adsorption head.

[0007] It should be noted in the solution that the connection between the opposite side of the symmetrical extension plate and the sliding plate is provided with a protruding guide and is embedded in a fitting sliding connection, and the front end of the base plate is hinged with a symmetrical limiting block.

[0008] It is worth noting that the upper end of the sliding plate is provided with a mounting groove that matches the shape of the scale text, and the mounting groove is provided with an adsorption hole.

[0009] It should be further noted that the upper end of one side plate of the support frame is provided with a scale.

[0010] In a preferred embodiment, the middle part of the curved surface of the first output shaft of the first servo motor and the outer surface of the other end of the driven shaft are both provided with teeth, and both can be meshed and connected to the inner surface of the synchronous belt. Limiting plates are fixedly connected to both sides of the connection between the first output shaft and the driven shaft of the first servo motor and the synchronous belt.

[0011] In a preferred embodiment, the controller is electrically connected to the negative pressure generator, the cavity is connected to the symmetrical negative pressure generator through a pipeline, and the negative pressure generator is a vacuum pump or a venturi tube structure. A pressure sensor is provided in the pipeline to monitor the adsorption negative pressure value. The controller controls the start and stop of the negative pressure generator and adjusts the adsorption force according to the feedback signal of the pressure sensor.

[0012] In a preferred embodiment, the adsorption head is made of flexible silicone or rubber material, and its edges should have sealing lips.

[0013] Compared with the prior art, the vacuum adsorption pickup device for graduated text provided by this utility model has at least the following beneficial effects:

[0014] (1) This device achieves high-precision, non-destructive picking of graduated text through multi-axis coordinated adjustment and adaptive hydraulic support. Its core lies in a precision mechanical structure driven by a servo motor, combined with synchronous belt drive and a threaded guide post system, enabling micron-level displacement adjustment along the X and Y axes to ensure complete alignment of the suction head with the center of the graduated text. The hydraulic unit dynamically adjusts the height of the support frame to adapt to workpiece substrates of varying thicknesses, while the customized design of the sliding plate and mounting groove further fixes the spatial orientation of the graduated text, preventing displacement. This multi-degree-of-freedom precise positioning capability avoids surface indentations or lateral stress damage caused by traditional mechanical grippers, making it particularly suitable for high-precision graduated text transfer operations on brittle materials such as glass and ceramics, significantly improving yield and operational reliability in the precision assembly field.

[0015] (2) The intelligent adsorption control system based on negative pressure feedback significantly improves the stability and adaptability of the pickup process. Through the closed-loop linkage between the negative pressure generator and the pressure sensor, the controller can monitor the changes in vacuum in the adsorption pipeline in real time and automatically adjust the adsorption force output. When the adsorption head contacts the surface of the scale text, the sealing lip edge made of flexible material can effectively adapt to minor unevenness and form a reliable seal; once the negative pressure value reaches the preset threshold, the system immediately locks the adsorption force to prevent deformation of the micro-text structure due to over-adsorption or detachment due to insufficient adsorption force. This dynamic adjustment mechanism not only overcomes the problem of high requirements for the flatness of the workpiece surface of traditional vacuum suction cups, but also can cope with scale text of different materials, weights and surface characteristics, significantly expanding the application range and operational fault tolerance of the equipment. Attached Figure Description

[0016] Figure 1 This is a front structural diagram of the present invention;

[0017] Figure 2 This is a cross-sectional structural diagram of the present invention;

[0018] Figure 3 This is a schematic diagram of the adsorption unit structure of this utility model.

[0019] In the diagram: 1. Base; 101. Sliding groove; 102. Extension plate; 103. Base plate; 104. Limiting block; 105. Raised guide; 2. Hydraulic unit; 201. Hydraulic shaft; 3. Support frame; 301. Limiting groove; 302. Scale; 4. Sliding frame; 5. X-axis adjustment assembly; 501. First servo motor; 502. First output shaft; 503. Synchronous belt; 504. Driven shaft; 505. Limiting plate; 6. Y-axis adjustment assembly; 601. Second servo motor; 602. Second output shaft; 603. Guide post; 604. Connecting block; 605. Adsorption unit; 6051. Housing; 6052. Controller; 6053. Negative pressure generator; 6054. Cavity; 6055. Adsorption head; 7. Sliding plate; 701. Mounting groove; 702. Adsorption hole. Detailed Implementation

[0020] The present invention will be further described below with reference to the embodiments.

[0021] Please see Figure 1-3 This utility model provides a vacuum adsorption pickup device for graduated text, comprising: a base 1, a sliding groove 101 on the upper end of the base 1, a hydraulic unit 2 fixedly connected to the middle of the sliding groove 101, a support frame 3 fixedly connected to the upper end of the hydraulic shaft 201 of the hydraulic unit 2, and extension plates 102 fixedly connected to both sides of the upper end of the base 1. A base plate 103 is fixedly connected to the middle of the opposite sides of the symmetrical extension plates 102. A sliding plate 7 is slidably connected to the upper end of the base plate 103. The support frame 3 is U-shaped, and a limiting groove 301 is provided in the middle of the opposite sides of the support frame 3. An inverted U-shaped sliding frame 4 is slidably connected to the upper end of both sides of the support frame 3. The upper end of the sliding frame 4 is fixedly connected to the lower end of the first servo motor 501 of the X-axis adjustment assembly 5. A synchronous belt 503 is connected to the other end of the first servo motor 501 via a curved surface. The other end of 503 passes through the upper end of the sliding frame 4 and is engaged with the middle part of the driven shaft 504. The lower end of the sliding frame 4 is provided with a Y-axis adjustment component 6. The Y-axis adjustment component 6 includes a second servo motor 601 and a connecting block 604. The outer surface of the second output shaft 602 of the second servo motor 601 is provided with an external thread and is threadedly connected to the middle part of the connecting block 604. Both sides of the connecting block 604 are slidably connected to the outer surface of the middle part of the guide post 603. The two ends of the guide post 603 are respectively fixedly connected to the lower ends of the sliding frame 4. The lower end of the connecting block 604 is fixedly connected to the upper end of the outer shell 6051 of the adsorption unit 605. The inner sides and the middle part of the outer shell 6051 are respectively provided with a symmetrical negative pressure generator 6053 or a controller 6052. The lower end of the controller 6052 is provided with a cavity 6054. The lower end of the cavity 6054 is equipped with an adsorption head 6055.

[0022] Further as Figure 1 and Figure 2As shown, it is worth noting that the connection between the symmetrical extension plate 102 and the sliding plate 7 on opposite sides is provided with a protruding guide 105, which is embedded in a fitting sliding connection. Furthermore, a symmetrical limiting block 104 is hinged to the front end of the base plate 103. The protruding guide 105 at the connection between the symmetrical extension plate 102 and the sliding plate 7 ensures that the sliding plate 7 slides smoothly along a predetermined trajectory during loading and unloading, preventing offset or jamming, thus improving operational smoothness and positioning accuracy. The symmetrical limiting block 104 hinged to the front end of the base plate 103 can be quickly flipped up or down, enabling convenient locking and releasing of the sliding plate 7, simplifying the workpiece clamping process and improving work efficiency.

[0023] Further as Figure 1 and Figure 2 As shown, it is worth noting that the upper end of the sliding plate 7 is provided with a mounting groove 701 that matches the shape of the scale text. The mounting groove 701 contains a suction hole 702. This customized contour-following design, with the mounting groove 701 perfectly matching the shape of the scale text, precisely positions the scale text in a predetermined location, effectively preventing movement during subsequent operations. The suction hole 702 within the mounting groove 701 can connect to an external air path, generating a downward suction pre-fixing force when placing the workpiece. This further ensures the stability of the scale text during handling and positioning, providing a solid foundation for subsequent vacuum pickup operations.

[0024] Further as Figure 1 and Figure 2 As shown, it is worth noting that a scale 302 is provided on the upper end of one side plate of the support frame 3. This scale 302 provides an intuitive visual reference for the operator. When adjusting the height of the support frame 3 using the hydraulic unit 2, the operator can make precise height presets and fine adjustments based on the values ​​of the scale 302. This reduces reliance on other precision measuring tools, simplifies the debugging process, and facilitates the quick adjustment of the adsorption head 6055 to a suitable working height, thereby improving the ease of use and adjustment efficiency of the equipment.

[0025] The working process of this solution is as follows: When the device is working, the scale text to be picked up is first placed in the mounting groove 701 at the upper end of the sliding plate 7 and initially fixed by the hinged limiting block 104. The hydraulic unit 2 is activated, and its hydraulic shaft 201 rises and falls, driving the entire support frame 3 and its moving parts to adjust to a suitable height. Subsequently, the first servo motor 501 of the X-axis adjustment component 5 drives the sliding frame 4 to move horizontally along the limiting groove 301 of the support frame 3 via the synchronous belt 503; the second servo motor 601 of the Y-axis adjustment component 6 drives the connecting block 604 to move back and forth along the guide post 603 via the thread, thereby accurately positioning the adsorption unit 605 directly above the scale text. The controller 6052 activates the negative pressure generator 6053 to generate a vacuum, and the adsorption head 6055 forms a sealed space with the text surface under the action of the flexible sealing lip, completing the pickup. The pressure sensor 21 monitors the negative pressure value in real time and feeds it back to the controller 6052 to intelligently adjust the adsorption force to ensure a stable and damage-free pickup process.

[0026] As can be seen from the above working process: A raised guide 105 is provided at the connection between the symmetrical extension plate 102 and the sliding plate 7 on opposite sides. This structure ensures that the sliding plate 7 slides smoothly along a predetermined trajectory during loading and unloading, avoiding deviation or jamming, thus improving the smoothness of operation and positioning accuracy. The symmetrical limiting block 104, hinged to the front end of the base plate 103, can be quickly flipped up or down, enabling convenient locking and releasing of the sliding plate 7, simplifying the workpiece clamping process and improving work efficiency. The upper end of the sliding plate 7 is provided with a mounting groove 701 that highly matches the shape of the scale characters. This customized contour design can accurately limit the scale characters to a predetermined position, effectively preventing them from moving during subsequent operations. The suction hole 702 opened in the mounting groove 701 can be connected to an external air path, generating a downward suction pre-fixing force when placing the workpiece, further ensuring the stability of the scale characters during handling and positioning, providing a solid foundation for subsequent vacuum pickup operations. The scale 302 provided on the upper end of one side plate of the support frame 3 provides an intuitive visual reference for the operator. When adjusting the height of the support frame 3 via the hydraulic unit 2, personnel can make precise height presets and fine adjustments based on the values ​​of the scale 302, reducing reliance on other precision measuring tools, simplifying the debugging process, facilitating the quick adjustment of the adsorption head 6055 to a suitable working height, and improving the ease of use and adjustment efficiency of the equipment.

[0027] Further as Figure 2As shown, it is worth noting that both the middle of the curved surface of the first output shaft 502 of the first servo motor 501 and the outer surface of the other end of the driven shaft 504 are provided with teeth, which can be meshed with the inner surface of the synchronous belt 503. Limiting plates 505 are fixedly connected to both sides of the connection between the first output shaft 502 and the driven shaft 504 of the first servo motor 501 and the synchronous belt 503. Since both the first output shaft 502 and the driven shaft 504 of the first servo motor 501 are meshed with the inner surface of the synchronous belt 503 through their toothed structures, this design ensures the synchronicity and accuracy of power transmission and effectively prevents slippage. The limiting plates 505 on both sides of the meshing point can axially limit the synchronous belt 503, preventing it from slipping or skipping teeth during high-speed or high-load operation, thereby ensuring the reliability of transmission in the X-axis direction and the stability of long-term operation.

[0028] Further as Figure 3 As shown, it is worth noting that the controller 6052 is electrically connected to the negative pressure generator 6053, and the cavity 6054 is connected to the symmetrical negative pressure generator 6053 through a pipeline. The negative pressure generator 6053 is a vacuum pump or venturi tube structure, and a pressure sensor 21 is installed in the pipeline to monitor the adsorption negative pressure value. The controller 6052 controls the start and stop of the negative pressure generator 6053 and adjusts the adsorption force based on the feedback signal from the pressure sensor. By intelligently controlling the start and stop of the negative pressure generator 6053 and its power output based on the real-time negative pressure signal fed back by the pressure sensor 21, the controller 6052 achieves dynamic closed-loop adjustment of the adsorption force. This intelligent control system can effectively avoid problems such as workpiece falling off due to insufficient adsorption force or damage and deformation of precision scale characters due to excessive adsorption force, significantly improving the adaptability and success rate of picking up workpieces of different materials and weights.

[0029] Further as Figure 2 As shown, it is worth noting that the adsorption head 6055 is made of flexible silicone or rubber material, and its edges should have sealing lips. When the sealing lips of the adsorption head 6055, made of flexible silicone or rubber material, come into contact with the workpiece surface, they undergo elastic deformation. This deformation can effectively compensate for minor unevenness on the workpiece surface, forming a reliable sealed space, thereby quickly establishing and maintaining the required vacuum level, greatly reducing the risk of leakage, and ensuring the stability and effectiveness of the adsorption process.

[0030] In summary: The first output shaft 502 and driven shaft 504 of the first servo motor 501 are both connected to the inner surface of the synchronous belt 503 through a toothed structure. This design ensures the synchronicity and accuracy of power transmission and effectively prevents slippage. Limiting plates 505 on both sides of the meshing point can axially limit the synchronous belt 503, preventing it from slipping or skipping teeth during high-speed or high-load operation, thus ensuring the reliability of transmission in the X-axis direction and the stability of long-term operation. The controller 6052 intelligently controls the start / stop and power output of the negative pressure generator 6053 based on the real-time negative pressure signal fed back by the pressure sensor 21, thereby achieving dynamic closed-loop adjustment of the adsorption force. This intelligent control system effectively avoids problems such as workpiece detachment due to insufficient adsorption force or damage and deformation of precision scale markings due to excessive adsorption force, significantly improving the adaptability and success rate of picking up workpieces of different materials and weights. The adsorption head 6055, made of flexible silicone or rubber, features a sealing lip at its edge that elastically deforms upon contact with the workpiece surface. This deformation effectively compensates for minor surface irregularities, creating a reliable sealed space. This allows for the rapid establishment and maintenance of the required vacuum level, significantly reducing the risk of leakage and ensuring the stability and effectiveness of the adsorption process.

[0031] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A scale letter vacuum suction pickup device comprising a base (1), characterized in that: The base (1) has a sliding groove (101) at its upper end. A hydraulic unit (2) is fixedly connected to the middle of the sliding groove (101). A support frame (3) is fixedly connected to the upper end of the hydraulic shaft (201) of the hydraulic unit (2). Extension plates (102) are fixedly connected to both sides of the upper end of the base (1). A base plate (103) is fixedly connected to the middle of the opposite side of the symmetrical extension plates (102). A sliding plate (7) is provided on the upper end of the base plate (103) for a fitting sliding connection. Furthermore, the support frame (3) is U-shaped, and each of the two opposing surfaces of the support frame (3) is provided with a limiting groove (301). Both upper ends of the support frame (3) are fitted with an inverted U-shaped sliding frame (4). The upper end of the sliding frame (4) is fixedly connected to the lower end of the first servo motor (501) of the X-axis adjustment assembly (5). The other end of the first servo motor (501) is connected to a synchronous belt (503) with a curved surface engagement. The other end of the synchronous belt (503) passes through the sliding frame. 4) The upper end is engaged with the middle part of the driven shaft (504), and the lower end of the sliding frame (4) is provided with a Y-axis adjustment assembly (6). The Y-axis adjustment assembly (6) includes a second servo motor (601) and a connecting block (604). The outer surface of the second output shaft (602) of the second servo motor (601) is provided with an external thread and is threadedly connected to the middle part of the connecting block (604). Both sides of the connecting block (604) are engaged and slidably connected to the outer surface of the middle part of the guide post (603). The guide post (603) is fixedly connected to both ends of the lower end of the sliding frame (4), and the lower end of the connecting block (604) is fixedly connected to the upper end of the outer shell (6051) of the adsorption unit (605). The inner sides and the middle of the outer shell (6051) are respectively provided with symmetrical negative pressure generators (6053) or controllers (6052). The lower end of the controller (6052) is provided with a cavity (6054), and the lower end of the cavity (6054) is equipped with an adsorption head (6055).

2. The scale letter vacuum suction pickup device according to claim 1, characterized in that: The extension plate (102) is provided with a protruding guide (105) at the connection between the opposite side and the sliding plate (7), and is embedded in a sliding connection. The bottom plate (103) is hinged to a symmetrical limiting block (104).

3. The scale letter vacuum suction pickup device according to claim 1, wherein: The upper end of the sliding plate (7) is provided with a mounting groove (701) that matches the shape of the scale text, and the mounting groove (701) is provided with an adsorption hole (702).

4. The scale letter vacuum suction pickup device according to claim 1, wherein: The upper end of one side plate of the support frame (3) is provided with a scale (302).

5. The scale letter vacuum suction pickup device according to claim 1, wherein: The first output shaft (502) of the first servo motor (501) has teeth on the middle part of the curved surface and the outer surface of the other end of the driven shaft (504), and both can be meshed and connected to the inner surface of the synchronous belt (503). Limiting plates (505) are fixedly connected to both sides of the connection between the first output shaft (502) of the first servo motor (501), the driven shaft (504), and the synchronous belt (503).

6. The scale letter vacuum suction pickup device according to claim 1, wherein: The controller (6052) is electrically connected with a negative pressure generator (6053), the cavity (6054) is connected with the symmetrical negative pressure generator (6053) through a pipeline, and the negative pressure generator (6053) is a vacuum pump or a venturi structure, a pressure sensor (21) is arranged in the pipeline and used for monitoring the adsorption negative pressure value, and the controller (6052) controls the start and stop of the negative pressure generator (6053) and adjusts the adsorption force according to the feedback signal of the pressure sensor.

7. The scale letter vacuum suction pickup device according to claim 1, wherein: The adsorption head (6055) is made of flexible silica gel or rubber material, and a sealing lip should be arranged at the edge.

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