Air pressure mistake proofing device

Abstract

The utility model relates to the technical field of workpiece detection, and discloses an air pressure mistake proofing device which comprises a workbench, a pipeline is installed on the bottom face of the workbench, an air supply device is installed at one end of the pipeline, and a three-way connector is installed at the other end of the pipeline. A detection pipe and a first air inlet pipe are installed at the other two connecting ports of the three-way connector correspondingly, one end of the detection pipe is connected with an air pressure sensor installed on the back face of the workbench, and one end of the first air inlet pipe is connected with a plurality of second air inlet pipes through connectors correspondingly; according to the utility model, the plurality of detection heads are arranged on the workbench, and when a workpiece is located on the plurality of detection heads at the same time and the detection holes are plugged, the workpiece can be detected at the same time through the plurality of detection heads, so that the detection efficiency is improved. And therefore, the placement position of the workpiece can be accurately detected, and errors are reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of workpiece detection, in particular to a pneumatic error-proofing device. Background Art

[0002] The traditional pneumatic error-proofing detection device is only equipped with one detection head. During detection, the position of the workpiece is usually determined by whether the bottom surface of the workpiece blocks the detection head. However, the bottom surface of the workpiece is usually relatively large. If different positions of the bottom surface of the workpiece contact the detection head, it cannot be detected, resulting in a relatively large detection error. In addition, due to the different sizes of workpieces, the position of the detection head cannot be adjusted according to the size of the workpiece.

[0003] Therefore, we propose a gas pressure error-proofing device to solve the above-mentioned problems. Utility Model Content

[0004] The utility model aims to solve the problems of inaccurate detection and inability to adjust according to the size of the workpiece.

[0005] To achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a pneumatic error-proofing device, comprising a workbench, a pipe is installed on the bottom surface of the workbench, a gas supply device is installed on one end of the pipe, a three-way connector is installed on the other end of the pipe, and the remaining two connecting ports of the three-way connector are respectively installed with a detection tube and a first air inlet pipe, one end of the detection tube is connected to the air pressure sensor installed on the back of the workbench, one end of the first air inlet pipe is respectively connected to multiple second air inlet pipes through the connector, one end of each second air inlet pipe is connected to a detection head installed on the workbench, the detection end of the detection head and the top of the workbench are located on the same plane, and different positions of the workpiece can be detected by multiple detection heads.

[0006] Furthermore: the workbench is provided with a slide groove adapted to the detection head, and the detection head is slidably installed inside the slide groove.

[0007] Furthermore: baffles are fixed at the lower parts of the two inner side walls of the slide groove, and a certain gap is left between the two baffles; an annular protrusion is fixed at the bottom of the detection head, and the outer diameter of the annular protrusion is larger than the gap between the two baffles.

[0008] A threaded barrel is fixed at the bottom end of the detection head, and a nut is threadedly installed on the bottom of the threaded barrel through the gap between the two baffles.

[0009] Furthermore: a pressure reducing valve and a control valve are also installed on the pipeline, and the control valve is arranged near the three-way connector.

[0010] Furthermore: a plurality of fixing sleeves with a "U"-shaped structure are installed on the pipeline, and the fixing sleeves are connected to the bottom of the workbench through bolts.

[0011] Furthermore: a controller and an alarm are also installed at the bottom of the workbench, the output end of the air pressure sensor is electrically connected to the controller through a wire, and the controller is electrically connected to the alarm through a wire.

[0012] Beneficial effects of the utility model:

[0013] The utility model is provided with a plurality of detection heads on the workbench. When the workpiece is located on the plurality of detection heads at the same time and the detection holes are blocked, the workpiece can be detected by the plurality of detection heads at the same time, so that the position where the workpiece is placed can be detected accurately, thereby reducing the possibility of errors.

[0014] The detection head of the utility model is installed in the slide groove in a sliding manner, so that the position of the detection head can be adjusted according to the size of the workpiece, and can be suitable for workpieces of different sizes, thereby improving the use effect of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a front view three-dimensional structural schematic diagram of the utility model;

[0016] Figure 2 It is a schematic diagram of the structure of the utility model after flipping;

[0017] Figure 3 It is a three-dimensional structural schematic diagram of the detection head in the utility model.

[0018] The names corresponding to the marks in the figure are:

[0019] 1. Workbench; 2. Pipeline; 3. Three-way connector; 4. Detection tube; 5. First air inlet pipe; 6. Air pressure sensor; 7. Connector; 8. Second air inlet pipe; 9. Detection head; 10. Slide; 11. Baffle; 12. Annular protrusion; 13. Threaded barrel; 14. Nut; 15. Pressure reducing valve; 16. Control valve; 17. Fixing sleeve; 18. Controller; 19. Alarm. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field belong to the scope of protection of the utility model.

[0021] Embodiments of the present utility model:

[0022] A pneumatic error-proofing device comprises a workbench 1, a pipe 2 is installed on the bottom surface of the workbench 1, a gas supply device is installed at one end of the pipe 2, the gas supply device is an air pump, through the setting of the air pump, the gas can be transported to the inside of the pipe 2, a pressure reducing valve 15 and a control valve 16 are installed on the pipe 2, the setting of the pressure reducing valve 15 plays a role of pressure relief, the control valve 16 is arranged near the position of the three-way connector 3, through the setting of the control valve 16, the pipe 2 can be opened or closed, a plurality of "U"-shaped fixing sleeves 17 are also installed on the pipe 2, and both ends of the fixing sleeves 17 are connected to the bottom of the workbench 1 by bolts, through the setting of the fixing sleeves 17, the pipe 2 can be installed to the bottom surface of the workbench 1, a three-way connector 3 is installed at the other end of the pipe 2, the other two connection ports of the three-way connector 3 are respectively installed with a detection tube 4 and a first air inlet pipe 5, one end of the detection tube 4 is sealed with the detection end of the air pressure sensor 6 The air pressure sensor 6 is connected to the back of the workbench 1. The setting of the air pressure sensor 6 plays a detection role; the output end of the air pressure sensor 6 is electrically connected to the controller 18 through a wire, and the controller 18 is electrically connected to the alarm 19 through a wire, and the controller 18 and the alarm 19 are both located on the back of the workbench 1. When the air pressure sensor 6 detects an abnormality, it can transmit the information to the controller 18, so that the controller 18 can control the alarm 19, so that the alarm 19 can emit an alarm to notify the staff. A connector 7 is installed at one end of the first air inlet pipe 5, and a plurality of second air inlet pipes 8 are installed on the connector 7. The second air inlet pipe 8 is a hose, and the number of the second air inlet pipes 8 is preferably 4. A detection head 9 is installed at one end of the second air inlet pipe 8. Through the setting of multiple detection heads 9, different positions of the workpiece can be detected, thereby improving the accuracy of detection and reducing the occurrence of errors.

[0023] A slide groove 10 corresponding to the detection head 9 is provided on the workbench 1, and the two inner side walls at the bottom of the slide groove 10 are fixed with baffles 11, and a certain gap is reserved between the two baffles 11. The detection head 9 is slidably installed inside the slide groove 10, and an annular protrusion 12 is fixed at the bottom of the detection head 9, and the outer diameter of the annular protrusion 12 is larger than the gap between the two baffles 11. The setting of the annular protrusion 12 plays a role in limiting the detection head 9 to prevent the detection head 9 from falling from the inside of the slide groove 10 due to its own gravity. A threaded barrel 13 is fixed at the bottom of the detection head 9, and the bottom end of the threaded barrel 13 passes through the gap between the two baffles 11 and is threadedly installed with a nut 14. The setting of the threaded barrel 13 and the nut 14 plays a role in tightening the detection head 9 to prevent the detection head 9 from shaking during use.

[0024] When inspecting a workpiece, firstly adjust the position of each inspection head 9 according to the size of the workpiece, and inspect the workpiece after the adjustment of multiple inspection heads 9 is completed;

[0025] When adjusting the detection head 9, first rotate the nut 14 to loosen the nut 14 on the threaded barrel 13, and then push the detection head 9 so that the detection head 9 can slide in the slide groove 10, so that the position of the detection head 9 can be adjusted. After the adjustment of the detection head 9 is completed, rotate the nut 14 in the opposite direction to tighten the nut 14 on the threaded barrel 13, so that the detection head 9 can be fixed, and then adjust it and multiple detection heads 9 in the same way as above.

[0026] When inspecting the workpiece, if the workpiece is located above multiple inspection heads 9 and the inspection port of the inspection head 9 is blocked, then the gas supply equipment is turned on, and the gas in the gas supply equipment enters the inspection tube 4 and the first air inlet pipe 5 through the three-way connector 3 in turn. Since the inspection head 9 is in a blocked state, the pressure in the connector 7 is relatively large, so that detection can be performed through the air pressure sensor 6. If the air pressure reaches the set value of the air pressure sensor 6, it means that the workpiece is placed in a relatively accurate position.

[0027] If the workpiece blocks part of the detection head 9, the remaining detection heads 9 are in a leaking state, and the pressure in the connecting head 7 cannot reach the set value of the air pressure sensor 6. At this time, the air pressure sensor 6 transmits the detection information to the controller 18, and the alarm 19 is controlled by the controller 18, so that the alarm 19 can emit an alarm sound for adjustment.

Claims

1. A pneumatic error-proofing device, comprising a workbench (1), characterized in that: A pipe (2) is installed on the bottom surface of the workbench (1), one end of the pipe (2) is installed with an air supply device, the other end of the pipe (2) is installed with a three-way connector (3), the other two connection ports of the three-way connector (3) are respectively installed with a detection tube (4) and a first air intake pipe (5), one end of the detection tube (4) is connected to an air pressure sensor (6) installed on the back of the workbench (1), one end of the first air intake pipe (5) is respectively connected to a plurality of second air intake pipes (8) through a connector (7), one end of each second air intake pipe (8) is connected to a detection head (9) installed on the workbench (1), the detection end of the detection head (9) and the top of the workbench (1) are located on the same plane, and different positions of the workpiece can be detected by using the plurality of detection heads (9).

2. A pneumatic error-proofing device according to claim 1, characterized in that: The workbench (1) is provided with a slide groove (10) adapted to the detection head (9), and the detection head (9) is slidably mounted inside the slide groove (10).

3. A pneumatic error-proofing device according to claim 2, characterized in that: Baffles (11) are fixed at the lower parts of the two inner side walls of the slide groove (10), and a certain gap is left between the two baffles (11); an annular protrusion (12) is fixed at the bottom of the detection head (9), and the outer diameter of the annular protrusion (12) is larger than the gap between the two baffles (11).

4. A pneumatic error-proofing device according to claim 3, characterized in that: A threaded barrel (13) is fixed to the bottom end of the detection head (9), and a nut (14) is threadedly installed on the bottom of the threaded barrel (13) through the gap between the two baffles (11).

5. The air pressure error prevention device according to claim 1, characterized in that: A pressure reducing valve (15) and a control valve (16) are also installed on the pipeline (2), and the control valve (16) is arranged near the three-way connector (3).

6. A pneumatic error-proofing device according to claim 1, characterized in that: A plurality of "U"-shaped fixing sleeves (17) are also installed on the pipeline (2), and the fixing sleeves (17) are connected to the bottom of the workbench (1) via bolts.

7. The air pressure error prevention device according to claim 1, characterized in that: A controller (18) and an alarm (19) are also installed at the bottom of the workbench (1); the output end of the air pressure sensor (6) is electrically connected to the controller (18) via a wire, and the controller (18) is electrically connected to the alarm (19) via a wire.

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