CN203561565U

CN203561565U - Rigidity measurement device

Info

Publication number: CN203561565U
Application number: CN201320574504.5U
Authority: CN
Inventors: 宋薇
Original assignee: WUHAN AUTOMOBILE BODYWORK ACCESSORY RESEARCH INSTITUTE Co Ltd
Current assignee: WUHAN AUTOMOBILE BODYWORK ACCESSORY RESEARCH INSTITUTE Co Ltd
Priority date: 2013-09-17
Filing date: 2013-09-17
Publication date: 2014-04-23
Anticipated expiration: 2023-09-17

Abstract

The utility model relates to a rigidity measurement device, which comprises a box body, a rigid pressure head, a grating scale, a tension and pressure sensor, a servo motor, an industrial personal computer, a display, a precise linear module, and a measurement moving part, wherein the servo motor and the precise linear module are both arranged in the box body, the precise linear module consists of a ball screw and a nut, one end of the measurement moving part is connected with the nut while the other end of the measurement moving part extends out of the box body, the rigid pressure head is arranged on the end, extending out of the box body, of the measurement moving part, the ball screw is connected with the servo motor, the tension and pressure sensor is also arranged on the measurement moving part, and the grating scale is also arranged in the box body; the grating scale, the tension and pressure sensor, the servo motor and the display are all connected with the industrial personal computer. The rigidity measurement device is applicable to tests on the rigidity of different component products, can efficiently and fast obtain accurate test data, solves the defects that traditional rigidity measurement is low in accuracy and efficiency, and can obtain high-precision force and displacement curves.

Description

A kind of stiffness measurement device

Technical field

The utility model relates to a kind of stiffness measurement device.

Background technology

At present, test rigidity is generally taked two kinds of modes:

1. traditional manual measurement mode, by adopting dynamometer to apply after certain force value body station, reads the deflection at this position by dial gauge, the shortcoming of this mode is, manual operation, and automaticity is low, testing staff's working strength is large, and accuracy of measurement is low, measures efficiency low.

2. take the rubbish testing machine of large-sized gantry version to read the relation of power and deflection, this mode testing expense is high, and test component is installed more complicated, and setup time is long.

Utility model content

The purpose of this utility model is to provide a kind of stiffness measurement device, solves the above-mentioned problems in the prior art.

The technical scheme that the utility model solves the problems of the technologies described above is as follows: a kind of stiffness measurement device, comprise casing, rigid pressure head, grating scale, pull pressure sensor, servomotor, industrial computer, display, precision linear module, measure movement parts, described servomotor, precision linear module is all arranged in described casing, described precision linear module comprises ball screw, nut, one end of described measurement movement parts is connected with described nut, the other end reaches outside described casing, described rigid pressure head is arranged on the end that described measurement movement parts reaches the one end outside described casing, described ball screw is connected with described servomotor, in described measurement movement parts, be also provided with described pull pressure sensor, in described casing, be also provided with the described grating scale of measuring the displacement of described measurement movement parts, described grating scale, pull pressure sensor, servomotor, display are all electrically connected to described industrial computer.

Further, described pull pressure sensor is positioned at described casing.

Further, the stroke of described precision linear module is 300mm, and location reappearance is 0.01mm, and positioning precision is 0.01mm, and the walking depth of parallelism is 0.01mm.

Further, the rotating speed of described servomotor is 3000 revs/min, and moment of torsion is 1.92N/m.

Further, the measurement range of described grating scale is 0 to 300mm, and measuring accuracy is 0.0005mm.

Further, the measurement range of described pull pressure sensor is 0 to 500N, and measuring accuracy is 0.05%.

Further, described casing is that hard aluminium alloy processes.

The beneficial effects of the utility model are: the utility model provides a kind of stiffness measurement device, be applicable to the rigidity test of different parts product parts, can efficiently obtain fast test data accurately, solve traditional stiffness measurement accuracy and inefficient shortcoming, and can obtain high-precision power and displacement curve.

Accompanying drawing explanation

Fig. 1 is the structural representation of a kind of stiffness measurement device of the utility model.

In accompanying drawing, the list of parts of each label representative is as follows:

1, rigid pressure head, 2, grating scale, 3, pull pressure sensor, 4, nut, 5, servomotor, 6, display, 7, industrial computer, 8, ball screw, 9, casing, 10, measure movement parts.

Embodiment

Below in conjunction with accompanying drawing, principle of the present utility model and feature are described, example, only for explaining the utility model, is not intended to limit scope of the present utility model.

As shown in Figure 1, a kind of stiffness measurement device, comprise casing 9, rigid pressure head 1, grating scale 2, pull pressure sensor 3, servomotor 5, industrial computer 7, display 6, precision linear module, measure movement parts 10, described servomotor 5, precision linear module is all arranged in described casing 9, described precision linear module comprises ball screw 8, nut 4, one end of described measurement movement parts 10 is connected with described nut 4, the other end reaches outside described casing 9, described rigid pressure head 1 is arranged on the end that described measurement movement parts 10 reaches the one end outside described casing 9, described ball screw 8 is connected with described servomotor 5, in described measurement movement parts 10, be also provided with described pull pressure sensor 3, described pull pressure sensor 3 is positioned at described casing 9.In described casing 9, be also provided with the described grating scale 2 of measuring described measurement movement parts 10 displacements; Described grating scale 2, pull pressure sensor 3, servomotor 5, display 6 are all electrically connected to described industrial computer 7, and described casing 9 processes for hard aluminium alloy.

Preferably; The stroke of described precision linear module is 300mm, and location reappearance is 0.01mm, and positioning precision is 0.01mm, and the walking depth of parallelism is 0.01mm, and the rotating speed of described servomotor 5 is 3000 revs/min, and moment of torsion is 1.92N/m.The measurement range of described grating scale 2 is 0 to 300mm, and measuring accuracy is 0.0005mm.The measurement range of described pull pressure sensor 3 is 0 to 500N, and measuring accuracy is 0.05%.

During work, first by parts to be measured benchmark flat board mounted externally, according to different measurements, require to change the rigid pressure head 1 of difformity size, then described casing 9 is arranged on the test column matching with outside reference flat board, adjust and take measurement of an angle, open industrial computer 7 power supplys, test parameter is set, start test, rigid pressure head 1 travels at the uniform speed to the test position of appointment on parts to be measured according to the speed of setting, measure movement parts 10 when rigid pressure head touches parts surface to be measured, pull pressure sensor 3 records power and displacement data with grating scale 2, and send to industrial computer 7, generate stiffness curve, and show on display 6.

The foregoing is only preferred embodiment of the present utility model, not in order to limit the utility model, all within spirit of the present utility model and principle, any modification of doing, be equal to replacement, improvement etc., within all should being included in protection domain of the present utility model.

Claims

1. a stiffness measurement device, it is characterized in that, comprise casing, rigid pressure head, grating scale, pull pressure sensor, servomotor, industrial computer, display, precision linear module, measure movement parts, described servomotor, precision linear module is all arranged in described casing, described precision linear module comprises ball screw, nut, one end of described measurement movement parts is connected with described nut, the other end reaches outside described casing, described rigid pressure head is arranged on the end that described measurement movement parts reaches the one end outside described casing, described ball screw is connected with described servomotor, in described measurement movement parts, be also provided with described pull pressure sensor, in described casing, be also provided with the described grating scale of measuring the displacement of described measurement movement parts, described grating scale, pull pressure sensor, servomotor, display are all electrically connected to described industrial computer.

2. a kind of stiffness measurement device according to claim 1, is characterized in that, described pull pressure sensor is positioned at described casing.

3. a kind of stiffness measurement device according to claim 1, is characterized in that, the stroke of described precision linear module is 300mm, and location reappearance is 0.01mm, and positioning precision is 0.01mm, and the walking depth of parallelism is 0.01mm.

4. a kind of stiffness measurement device according to claim 1, is characterized in that, the rotating speed of described servomotor is 3000 revs/min, and moment of torsion is 1.92N/m.

5. a kind of stiffness measurement device according to claim 1, is characterized in that, the measurement range of described grating scale is 0 to 300mm, and measuring accuracy is 0.0005mm.

6. a kind of stiffness measurement device according to claim 1, is characterized in that, the measurement range of described pull pressure sensor is 0 to 500N, and measuring accuracy is 0.05%.

7. a kind of stiffness measurement device according to claim 1, is characterized in that, described casing is that hard aluminium alloy processes.