Vacuum nozzle device with pressure detection

Abstract

This utility model discloses a vacuum nozzle device with pressure detection, including a vacuum nozzle, a push rod, an elastic element, a pressure sensor, a mounting base, and a drive mechanism. The output end of the drive mechanism is connected to the mounting base. The pressure sensor and the elastic element are disposed on the mounting base. Both ends of the elastic element elastically abut against the pressure sensor and one end of the push rod, respectively. The other end of the push rod is connected to the vacuum nozzle. This utility model's vacuum nozzle device with pressure detection can monitor pressure values ​​accurately and instantly, automatically adjust the pressure, effectively extend service life, reduce setup time, and improve production efficiency.

Description

Technical Field

[0001] This utility model relates to a vacuum nozzle, and more particularly to a vacuum nozzle device with pressure detection. Background Technology

[0002] Vacuum nozzles are commonly used suction heads on robotic arms for material handling. They utilize negative pressure to hold and transfer workpieces. They are simple to control and easy to use, making them widely used in industrial production. However, to prevent excessive pressure between the vacuum nozzle and the workpiece during suction, it is often necessary to control the pressure between them. Common methods for controlling the pressure on the nozzle include spring buffering or pneumatic control. However, these methods suffer from poor precision, inaccurate control, and large errors, making the nozzle prone to overpressure wear and shortening its lifespan. Furthermore, they cannot provide real-time feedback on the pressure applied to the workpiece, resulting in poor sensitivity and an inability to actively correct the material handling height. Utility Model Content

[0003] The purpose of this invention is to provide a vacuum nozzle device with pressure detection that can monitor pressure values ​​instantly and accurately, automatically adjust the pressure, effectively extend service life, reduce setup time, and improve production efficiency.

[0004] To achieve the above objectives, the vacuum nozzle device with pressure detection provided by this utility model includes a vacuum nozzle, a push rod, an elastic element, a pressure sensor, a mounting base, and a drive mechanism. The output end of the drive mechanism is connected to the mounting base. The pressure sensor and the elastic element are disposed on the mounting base. The two ends of the elastic element elastically abut against the pressure sensor and one end of the push rod, respectively. The other end of the push rod is connected to the vacuum nozzle.

[0005] This invention connects a vacuum nozzle to a top rod, places a pressure sensor between the top rod and the mounting base, and places an elastic element between the pressure sensor and the top rod. A drive mechanism moves the mounting base, allowing the vacuum nozzle to approach and grip the workpiece. The elastic element not only buffers the gap between the vacuum nozzle and the workpiece but also transmits pressure to the pressure sensor. The pressure sensor accurately detects the pressure value in real time, providing feedback to the control system. The control system then automatically adjusts the height of the vacuum nozzle using the drive mechanism, preventing overpressure issues caused by poor nozzle control accuracy, thus preventing wear and extending service life. Therefore, this solution achieves precise position control of the vacuum nozzle through real-time pressure sensor detection, enabling automatic height adjustment, reducing setup time, and improving production efficiency.

[0006] Preferably, the vacuum nozzle device with pressure detection further includes a control system electrically connected to the pressure sensor and the drive mechanism to control the drive mechanism to stop when the pressure sensor detects that the vacuum nozzle is subjected to a set pressure.

[0007] Preferably, the drive mechanism includes a telescopic cylinder, the output end of which is connected to the mounting base.

[0008] Specifically, the drive mechanism further includes a connecting bracket, one end of which is connected to the output end of the telescopic cylinder, and the other end is connected to the mounting base.

[0009] Specifically, the telescopic cylinder is a pneumatic cylinder, a hydraulic cylinder, or an electric push rod.

[0010] Preferably, the vacuum nozzle device with pressure detection further includes an air pressure supply device connected to the vacuum nozzle to provide negative or positive pressure to the vacuum nozzle.

[0011] Specifically, the vacuum nozzle device with pressure detection also includes a fixed bracket, and the drive mechanism is mounted on the fixed bracket.

[0012] Specifically, the fixed bracket is provided with a first sliding guide rail, and the connecting bracket is provided with a first slider, which is slidably disposed on the first sliding guide rail. By setting the first sliding guide rail, the mounting base, pressure sensor, and elastic element can move smoothly, thereby stably driving the vacuum nozzle to slide.

[0013] Specifically, the fixed bracket is provided with a second sliding guide rail, and the vacuum nozzle is provided with a second slider, which is slidably disposed on the second sliding guide rail. By setting the second sliding guide rail, the vacuum nozzle can rise or fall accurately and stably, thereby providing accurate and stable pressure to the pressure sensor through the elastic element.

[0014] Specifically, the vacuum nozzle device with pressure detection further includes a guide sleeve, which is disposed at the lower end of the fixed bracket. The guide sleeve has through holes on both sides, through which the vacuum nozzle extends and retracts. By providing the guide sleeve, the vacuum nozzle can be accurately aligned with the workpiece, improving the accuracy of the vacuum nozzle's adsorption of the workpiece. Attached Figure Description

[0015] Figure 1 This is a structural diagram of the vacuum nozzle device with pressure detection of this utility model. Detailed Implementation

[0016] To explain in detail the technical content, structural features, and effects of this utility model, the following description is provided in conjunction with the embodiments and accompanying drawings.

[0017] like Figure 1 As shown, the vacuum suction nozzle device 100 with pressure detection of this utility model includes a vacuum suction nozzle 1, a push rod 2, an elastic element 3, a pressure sensor 4, a mounting base 5, a drive mechanism 6, an air pressure supply device, and a control system. The output end of the drive mechanism 6 is connected to the mounting base 5 to drive the mounting base 5 to move vertically. The mounting base 5 has an inner cavity 51 with an open lower end; the pressure sensor 4 and the elastic element 3 are disposed in the inner cavity 51 of the mounting base 5, and the two ends of the elastic element 3 elastically abut against one end of the pressure sensor 4 and one end of the push rod 2, respectively; the elastic element 3 is a compression spring; the elastic element 3 has a certain elastic force in the initial state. The other end of the push rod 2 is connected to the vacuum suction nozzle 1. The air pressure supply device is connected to the vacuum suction nozzle 1 to provide negative or positive pressure to the vacuum suction nozzle 1. The control system is electrically connected to the pressure sensor 4, the air pressure supply device, and the drive mechanism 6 to control the drive mechanism 6 to stop when the pressure sensor 4 detects that the vacuum suction nozzle 1 is subjected to a set pressure.

[0018] The drive mechanism 6 includes a telescopic cylinder 61 and a connecting bracket 62. The telescopic cylinder 61 is a pneumatic cylinder, and the pneumatic supply device is connected to the pneumatic cylinder to provide pneumatic pressure. Alternatively, the telescopic cylinder 61 can be a hydraulic cylinder or an electric push rod. One end of the connecting bracket 62 is connected to the output end of the telescopic cylinder 61, and the other end is connected to the mounting base 5. The connecting bracket 62 has an L-shaped structure, with one side fixedly connected to the output end of the telescopic cylinder 61 and the other side fixedly connected to the mounting base 5.

[0019] The vacuum nozzle device 100 with pressure detection also includes a fixed bracket 7, on which the drive mechanism 6 is mounted. In this embodiment, the telescopic rod of the telescopic cylinder 61 is connected to the fixed bracket 7, and the cylinder body of the telescopic cylinder 61 is connected to the connecting bracket 62. The fixed bracket 7 is provided with a first sliding guide rail 71, and the connecting bracket 62 is fixedly provided with a first slider 621. The first slider 621 is slidably disposed on the first sliding guide rail 71, so that the connecting bracket 62 can move smoothly in the vertical direction under the drive of the drive mechanism 6. By setting the first sliding guide rail 71, the mounting base 5, pressure sensor 4, and elastic element 3 can move smoothly, thereby stably driving the vacuum nozzle 1 to slide closer to or away from the workpiece. The fixed bracket 7 is provided with a second sliding guide rail 72, which extends parallel to the first sliding guide rail 71. The vacuum nozzle 1 is provided with a second slider 11. Specifically, one end of the vacuum nozzle 1 is disposed in the nozzle opening, and the other end extends upward to form a suction tube. The second slider 11 is disposed on the suction tube side of the vacuum nozzle 1. The second slider 11 is slidably disposed on the second sliding guide rail 72, so that the vacuum nozzle 1 can move vertically relative to the mounting base 5. By setting the second sliding guide rail 72, the vacuum nozzle 1 can rise or fall accurately and stably, thereby providing accurate and stable pressure to the pressure sensor 4 through the elastic element 3.

[0020] The vacuum nozzle device 100 with pressure detection also includes a guide sleeve 8, which is fixed to the lower end of the fixed bracket 7. The guide sleeve 8 has through holes 81 extending through both sides, through which the vacuum nozzle 1 telescopically passes. A workpiece 200 is placed on a fixture 201, which is located below the guide sleeve 8 and directly opposite the through holes 81. By setting the guide sleeve 8, the vacuum nozzle 1 can be accurately aligned with the workpiece 200, improving the accuracy of the vacuum nozzle 1 in adsorbing the workpiece 200.

[0021] In summary, the working principle of the vacuum nozzle 1 with pressure detection of this utility model will be described in detail below:

[0022] When workpiece 200 needs to be picked up, the output end of the drive mechanism 6 actuates, driving the connecting bracket 62. The connecting bracket 62 drives the mounting base 5 to move downward along the direction of the first sliding guide rail 71. At this time, the mounting base 5, pressure sensor 4, elastic element 3, push rod 2, and vacuum nozzle 1 move downward as a whole, so that the vacuum nozzle 1 passes through the through hole 81 of the guide sleeve 8 and approaches the workpiece 200 on the fixture. When the vacuum nozzle 1 presses against the workpiece 200, the vacuum nozzle 1 does not move relative to the workpiece 200, but because the drive mechanism 6 continues to operate, the connecting bracket 62, mounting base 5, and pressure sensor 4 continue to move downward. At this time, the vacuum nozzle 1 and push rod 2 move relative to the pressure sensor 4 and jointly compress the elastic element 3, so that the elastic pressure of the elastic element 3 acting on the pressure sensor 4 increases. The pressure sensor 4 sends the corresponding pressure value signal to the control system in real time. The control system monitors the pressure sensor 4 in real time. When the pressure of the pressure sensor 4 increases to a preset value, the control system controls the drive mechanism 6 to stop driving and controls the air pressure supply device to provide negative pressure to the vacuum nozzle 1. At this time, the vacuum nozzle 1 can come into contact with the workpiece 200 with a certain pressure and suck up the workpiece 200 under the action of negative pressure.

[0023] This invention connects a vacuum nozzle 1 to a top rod 2, and places a pressure sensor 4 between the top rod 2 and a mounting base 5. An elastic element 3 is positioned between the pressure sensor 4 and the top rod 2. A drive mechanism 6 moves the mounting base 5, allowing the vacuum nozzle 1 to approach and grip the workpiece 200. The elastic element 3 not only buffers the space between the vacuum nozzle 1 and the workpiece 200 but also transmits pressure to the pressure sensor 4. The pressure sensor 4 accurately detects the pressure value in real time, providing feedback to the control system. The control system then controls the drive mechanism 6 to automatically adjust the height of the vacuum nozzle 1, preventing overpressure issues caused by poor control accuracy and thus preventing wear and extending its service life. Therefore, this solution achieves precise position control of the vacuum nozzle 1 by using the pressure sensor 4 to detect pressure in real time, enabling automatic height adjustment, reducing setup time, and improving production efficiency.

[0024] The above-disclosed examples are merely preferred embodiments of the present utility model and should not be construed as limiting the scope of the present utility model. Therefore, any equivalent changes made in accordance with the scope of the present utility model application shall still fall within the scope of the present utility model.

Claims

1. A vacuum nozzle device with pressure detection, characterized in that: The device includes a vacuum nozzle, a push rod, an elastic element, a pressure sensor, a mounting base, and a drive mechanism. The output end of the drive mechanism is connected to the mounting base. The pressure sensor and the elastic element are mounted on the mounting base. Both ends of the elastic element elastically abut against one end of the pressure sensor and one end of the push rod, respectively. The other end of the push rod is connected to the vacuum nozzle.

2. The vacuum nozzle device with pressure detection according to claim 1, characterized in that: The vacuum nozzle device with pressure detection also includes a control system, which is electrically connected to the pressure sensor and the drive mechanism to control the drive mechanism to stop when the pressure sensor detects that the vacuum nozzle is subjected to a set pressure.

3. The vacuum nozzle device with pressure detection according to claim 1, characterized in that: The drive mechanism includes a telescopic cylinder, the output end of which is connected to the mounting base.

4. The vacuum nozzle device with pressure detection according to claim 3, characterized in that: The drive mechanism also includes a connecting bracket, one end of which is connected to the output end of the telescopic cylinder, and the other end is connected to the mounting base.

5. The vacuum nozzle device with pressure detection according to claim 3, characterized in that: The telescopic cylinder is a pneumatic cylinder, a hydraulic cylinder, or an electric push rod.

6. The vacuum nozzle device with pressure detection according to claim 1, characterized in that: The vacuum nozzle device with pressure detection also includes an air pressure supply device, which is connected to the vacuum nozzle to provide negative or positive pressure to the vacuum nozzle.

7. The vacuum nozzle device with pressure detection according to claim 4, characterized in that: The vacuum nozzle device with pressure detection also includes a fixed bracket, and the drive mechanism is mounted on the fixed bracket.

8. The vacuum nozzle device with pressure detection according to claim 7, characterized in that: The fixed bracket is provided with a first sliding guide rail, and the connecting bracket is provided with a first slider, which is slidably disposed on the first sliding guide rail.

9. The vacuum nozzle device with pressure detection according to claim 7, characterized in that: The fixed bracket is provided with a second sliding guide rail, and the vacuum nozzle is provided with a second slider, which is slidably disposed on the second sliding guide rail.

10. The vacuum nozzle device with pressure detection according to claim 7, characterized in that: The vacuum nozzle device with pressure detection also includes a guide sleeve, which is disposed at the lower end of the fixed bracket; the guide sleeve has a through hole that passes through both sides, and the vacuum nozzle extends and retracts through the through hole.

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