CN206546134U - A kind of micrometer with pressure sensor - Google Patents

Abstract

The utility model discloses a micrometer with a pressure sensor, which comprises a bow-shaped ruler frame, a fixed sleeve, a differential cylinder, a force measuring device, a micrometer screw, a measuring anvil, a pressure sensor and a force measuring display device. The pressure sensor is a circular Disk-shaped, fixed on the surface of the measuring anvil, the force-measuring display device is set on the bow-shaped ruler frame, and the pressure sensor is connected with the force-measuring display device through wires. The utility model is beneficial to accurately provide the clamping force of the object to be measured, can be used for the improvement of the existing micrometer, and improves the accuracy of measurement.

Description

A micrometer with a pressure sensor

technical field

The utility model relates to a length measuring tool, in particular to a micrometer with a pressure sensor.

Background technique

A micrometer is a more precise length measuring instrument. When using a micrometer, place the object to be measured (such as a steel ball) between the micrometer screw and the anvil, rotate the micrometer screw so that the object to be measured is in contact with the micrometer screw and the anvil at the same time, and then rotate the force measuring device at the end of the micrometer Take the reading after clamping the object to be measured. my country's national metrology verification regulations on micrometers (JJG21-2008) stipulate that the measuring force of micrometers should be 5-10N. However, in actual measurement, the magnitude of the force exerted by the force measuring device is not displayed, so it is easy to cause different clamping degrees of the object to be measured, resulting in measurement errors and inconvenience to users.

Utility model content

The purpose of this utility model is to overcome the above-mentioned shortcoming of existing micrometer, develop a kind of micrometer with pressure sensor.

In order to solve the above-mentioned technical problems, the utility model is realized through the following technical solutions: it includes a bow-shaped ruler frame, a fixed sleeve, a differential cylinder, a force measuring device, a micrometer screw, and a measuring anvil; it also includes a pressure sensor and a force measuring display device. The pressure sensor is disc-shaped and fixed on the surface of the anvil. The force-measuring display device is arranged on the bow-shaped ruler frame, and the pressure sensor and the force-measuring display device are connected through wires.

The force measurement display device is a liquid crystal screen.

The force measuring display device is an LED lamp, and when the pressure sensor is subjected to a pressure greater than or equal to 5N, an output signal lights up the LED lamp.

Because the utility model adopts the above-mentioned design, when measuring, the object to be measured is clamped between the micrometer screw and the measuring anvil, and the force measuring device is gently rotated until the force measuring display device shows 5N, or the LED lamp lights up, prompting The measurer stops adding force and can take a reading. The utility model is beneficial to accurately provide the clamping force of the object to be measured, can be used for the improvement of the existing micrometer, and improves the accuracy of measurement.

Description of drawings

Below in conjunction with accompanying drawing, the utility model is further described.

Fig. 1 is the composition schematic diagram of the present utility model.

In the figure: 1. Bow-shaped ruler frame, 2. Fixed sleeve, 3. Differential tube, 4. Force measuring device, 5. Micro measuring screw, 6. Measuring anvil, 7. Pressure sensor, 8. Force measuring display device, 9 .Battery case.

detailed description

As shown in FIG. 1 , the utility model includes a bow ruler frame 1 , a fixed sleeve 2 , a differential tube 3 , a force measuring device 4 , a micrometer screw 5 , and an anvil 6 , as well as a pressure sensor 7 and a force measuring display device 8 . The pressure sensor 7 is disc-shaped and fixed on the surface of the measuring anvil 6. The force measuring display device 8 is arranged on the bow-shaped ruler frame 1. The pressure sensor 7 and the force measuring display device 8 are connected by wires. The tail of the anvil 6 is also provided with a battery box 9, and the battery box 9 has a built-in button battery to supply power for the pressure sensor 7 and the force measuring display device 8.

The force measurement display device 8 is a liquid crystal screen, which is used to visually display the clamping force of the object to be measured.

The force measuring display device 8 may also be an LED lamp, and when the pressure sensor 7 is subjected to a pressure greater than or equal to 5N, the output signal lights up the LED lamp.

Claims (3)

1. a kind of micrometer with pressure sensor, including arch chi frame, fixes sleeve, microdrum, device for measuring force, micrometer spiral shell Bar, gage button；It is characterized in that：Also include pressure sensor and dynamometry display device, the pressure sensor is disc, fixed In gage button surface, the dynamometry display device is on arch chi frame, and pressure sensor passes through wire phase with dynamometry display device Even.

2. a kind of micrometer with pressure sensor according to claim 1, it is characterised in that：The dynamometry display device For liquid crystal display.

3. a kind of micrometer with pressure sensor according to claim 1, it is characterised in that：The dynamometry display device For LED, when the pressure sensor is by pressure more than or equal to 5N, output signal lightening LED lamp.