External air tightness detection device

Abstract

The utility model relates to the technical field of machine tools, and discloses an external air tightness detection device, which comprises a shell, an air tightness pressure regulating valve is fixedly arranged on the right side of the shell, and the input end of the air tightness pressure regulating valve is communicated with an air pipe access pipe through a pipeline. The output end of the airtight pressure regulating valve is communicated with a reversing valve through a pipeline, the air inlet pressure is regulated through the airtight pressure regulating valve, an air source accessed from the air pipe access pipe is introduced into the reversing valve, then is accessed into the first air pipe outlet pipe from the reversing valve, and is communicated with a detection surface during clamping of a machine tool clamp through the first air pipe outlet pipe; the airtight pressure is detected through the digital pressure sensor arranged on the reversing valve, then the size of a gap between the detection face and a workpiece is detected, the attaching condition is detected, the detection result is displayed through the green LED display lamp, the red LED display lamp and the three-color lamp, use is easy, and different machine tool clamps can be detected.

Description

Technical Field

[0001] The utility model relates to the technical field of machine tools, in particular to an external airtight detection device. Background Technique

[0002] With the increasing processing precision and processing stability, there are new challenges for fixtures, which need to be able to achieve the detection function. Currently, the most commonly used detection method is airtight detection. Airtight detection can directly judge the size of the gap between the detection surface and the workpiece, so as to detect the fitting situation. In the past, airtight detection could only be used when integrated in the machine tool and could not be used independently. If the machine tool does not have airtight detection and the airtight detection function is added later, the price is very expensive and the construction period is long, making it impossible to use flexibly. Content of the Utility Model

[0003] The purpose of the utility model is to provide an external airtight detection device to solve the problems put forward in the above background technique.

[0004] To achieve the above purpose, the utility model provides the following technical scheme: an external airtight detection device, including a housing, an airtight pressure regulating valve is fixedly installed on the right side of the housing, an air pipe access pipe is connected to the input end of the airtight pressure regulating valve through a pipeline, a reversing valve is connected to the output end of the airtight pressure regulating valve through a pipeline, an air pipe outlet pipe one is connected to the output end of the reversing valve through a pipeline, a digital pressure sensor is arranged at the output end of the reversing valve, a green LED display lamp is fixedly installed on the front of the housing, a red LED display lamp is fixedly installed on the front of the housing, and a three-color lamp is fixedly installed on the top of the housing.

[0005] Further, the reversing valve is provided with two output ends. The output end of the right reversing valve is communicated with the air pipe outlet pipe one, and the output end of the left reversing valve is connected to an air pipe outlet pipe two through a pipeline.

[0006] Further, a power input port is fixedly installed on the left side of the housing, a power transformer is fixedly installed inside the housing, and the power input port is electrically connected to the power transformer through an electric wire.

[0007] Further, a base is fixedly installed inside the housing, an electromagnetic relay is fixedly installed on the base, and the electromagnetic relay is electrically connected to the reversing valve through an electric wire.

[0008] Further, a power switch is fixedly installed on the outer wall of the left side of the housing, and the power switch is electrically connected to the power transformer through an electric wire.

[0009] Further, a nameplate is fixedly installed on the outer wall of the right side of the housing, and the working pressure range is set on the nameplate.

[0010] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0011] 1. By adjusting the intake pressure through the airtight pressure regulating valve, the air source connected from the air pipe access pipe is introduced into the reversing valve, and then connected from the reversing valve to the first air pipe outlet pipe. It is connected to the detection surface when the machine tool fixture is clamped through the first air pipe outlet pipe. The airtight pressure is detected by the digital pressure sensor set on the reversing valve, and then the size of the gap between the detection surface and the workpiece is detected, so as to detect the fitting situation. The detection result is displayed by the green LED display light, the red LED display light, and the three-color light. It is simple to use and can detect different machine tool fixtures;

[0012] 2. It is connected to the detection surface when the machine tool fixture is relaxed through the second air pipe outlet pipe, and then it is detected whether the fixture relaxation action is in place to ensure that the fixture completely releases the workpiece. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic structural diagram of a perspective view of the present utility model;

[0014] Figure 2 It is a schematic structural diagram of a right side view of the present utility model;

[0015] Figure 3 It is a schematic structural diagram of a left side view of the present utility model;

[0016] Figure 4 It is a schematic structural diagram of a bottom upward view of the present utility model.

[0017] In the figure: 1. Housing; 2. Power transformer; 3. Three-color light; 4. Electromagnetic relay; 5. Base; 6. Reversing valve; 7. Digital pressure sensor; 8. Green LED display light; 9. Red LED display light; 10. Power input port; 11. Air pipe access pipe; 12. First air pipe outlet pipe; 13. Second air pipe outlet pipe; 14. Airtight pressure regulating valve; 15. Power switch; 16. Nameplate. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0018] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments.

[0019] Please refer to Figures 1 - 4, the present utility model provides a technical solution: an external airtight detection device, including a housing 1. A hermetic pressure regulating valve 14 is fixedly installed on the right side of the housing 1. An air pipe access pipe 11 is connected to the input end of the hermetic pressure regulating valve 14 through a pipe. A reversing valve 6 is connected to the output end of the hermetic pressure regulating valve 14 through a pipe. An air pipe outlet pipe one 12 is connected to the output end of the reversing valve 6 through a pipe. A digital pressure sensor 7 is arranged at the output end of the reversing valve 6. A green LED display lamp 8 is fixedly installed on the front of the housing 1. A red LED display lamp 9 is fixedly installed on the front of the housing 1. A three-color lamp 3 is fixedly installed on the top of the housing 1. The intake pressure is adjusted by the hermetic pressure regulating valve 14, and the air source connected from the air pipe access pipe 11 is introduced into the reversing valve 6, and then connected from the reversing valve 6 into the air pipe outlet pipe one 12. It is connected to the detection surface when the machine tool fixture is clamped through the air pipe outlet pipe one 12. The airtight pressure is detected by the digital pressure sensor 7 arranged on the reversing valve 6, and then the size of the gap between the detection surface and the workpiece is detected, so as to detect the fitting situation. The detection result is displayed by the green LED display lamp 8, the red LED display lamp 9, and the three-color lamp 3. When the green LED display lamp 8 and the three-color lamp 3 are lit, the detection passes. When the three-color lamp 3 and the red LED display lamp 9 are lit, the detection fails. It is simple to use and can detect different machine tool fixtures;

[0020] The reversing valve 6 is provided with two output ends. The output end on the right side of the reversing valve 6 is connected to the air pipe outlet pipe one 12. The output end on the left side of the reversing valve 6 is connected to an air pipe outlet pipe two 13 through a pipe. It is connected to the detection surface when the machine tool fixture is relaxed through the air pipe outlet pipe two 13, so as to detect whether the fixture relaxation action is in place and ensure that the fixture completely releases the workpiece;

[0021] A power input port 10 is fixedly installed on the left side of the housing 1 for connecting to a power source. A power transformer 2 is fixedly installed inside the housing 1. The power input port 10 is electrically connected to the power transformer 2 through an electric wire. The power voltage connected is transformed and adapted by the power transformer 2, so that the connected power source can supply power to the electronic devices inside the housing 1;

[0022] A base 5 is fixedly installed inside the housing 1. An electromagnetic relay 4 is fixedly installed on the base 5. The electromagnetic relay 4 is electrically connected to the reversing valve 6 through an electric wire. The switch of the reversing valve 6 is controlled by the electromagnetic relay 4, and then the air change direction of the reversing valve 6 is controlled;

[0023] A power switch 15 is fixedly installed on the outer wall on the left side of the housing 1. The power switch 15 is electrically connected to the power transformer 2 through an electric wire. The switch of the power transformer 2 is controlled by the power switch 15, and then the electronic devices inside the housing 1 are turned on and off;

[0024] A nameplate 16 is fixedly installed on the right outer wall of the housing 1. The working pressure range is set on the nameplate 16. The working pressure includes the intake pressure and the airtight use pressure. The range of the intake pressure is 0.3 MPA to 1 MPA, and the airtight use pressure is 0.2 MPA.

[0025] Working principle: During use, connect the power supply to the power input port 10 with a power cord. Connect the air pipe outlet pipe 12 to the detection surface when the machine tool fixture is clamped, connect the air pipe outlet pipe 13 to the detection surface when the machine tool fixture is relaxed, connect the air pipe inlet pipe 11 to the air source, and press the power switch 15 to turn on the device. The air source enters the airtight pressure regulating valve 14 from the air pipe inlet pipe 11, and the air source pressure is regulated through the airtight pressure regulating valve 14. The regulated air source enters the reversing valve 6 from the airtight pressure regulating valve 14. The electromagnetic relay 4 controls the reversing valve 6 to introduce the air source into the air pipe outlet pipe 12 or the air pipe outlet pipe 13. When it is necessary to detect clamping, introduce the air source into the air pipe outlet pipe 12. The air source enters the detection surface and the workpiece from the air pipe outlet pipe 12. If the detection surface fits tightly with the workpiece, the pressure detected by the digital pressure sensor 7 is normal. At this time, the three-color lamp 3 and the green LED display lamp 8 light up. Otherwise, the three-color lamp 3 and the red LED display lamp 9 light up. When it is necessary to detect relaxation, the electromagnetic relay 4 controls the reversing valve 6 to introduce the air source into the air pipe outlet pipe 13, and then detects whether the fixture relaxation action is in place to ensure that the fixture completely releases the workpiece.

[0026] Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

Claims

1. An external airtightness detection device, comprising a housing (1), characterized in that: An airtight pressure regulating valve (14) is fixedly installed on the right side of the shell (1); an input end of the airtight pressure regulating valve (14) is connected to an air pipe access pipe (11) through a pipeline; an output end of the airtight pressure regulating valve (14) is connected to a reversing valve (6) through a pipeline; an output end of the reversing valve (6) is connected to an air pipe outlet pipe (12) through a pipeline; a digital pressure sensor (7) is provided at the output end of the reversing valve (6); a green LED display light (8) is fixedly installed on the front of the shell (1); a red LED display light (9) is fixedly installed on the front of the shell (1); and a tricolor light (3) is fixedly installed on the top of the shell (1).

2. An external airtightness detection device according to claim 1, characterized in that: The reversing valve (6) is provided with two output ends, the right output end of the reversing valve (6) is connected to the first air pipe outlet pipe (12), and the left output end of the reversing valve (6) is connected to the second air pipe outlet pipe (13) through a pipeline.

3. The external airtightness detection device according to claim 1, characterized in that: A power input port (10) is fixedly installed on the left side of the shell (1), a power transformer (2) is fixedly installed inside the shell (1), and the power input port (10) is electrically connected to the power transformer (2) through an electric wire.

4. The external airtightness detection device according to claim 1, characterized in that: A base (5) is fixedly mounted inside the housing (1), an electromagnetic relay (4) is fixedly mounted on the base (5), and the electromagnetic relay (4) is electrically connected to a reversing valve (6) via an electric wire.

5. The external airtightness detection device according to claim 1, characterized in that: A power switch (15) is fixedly mounted on the left outer wall of the housing (1), and the power switch (15) is electrically connected to the power transformer (2) via an electric wire.

6. The external airtightness detection device according to claim 1, characterized in that: A nameplate (16) is fixedly mounted on the right outer wall of the housing (1), and a working pressure range is provided on the nameplate (16).

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