CN213714256U - Sensor linear inspection machine - Google Patents

Abstract

The utility model discloses a sensor linear inspection machine, which comprises a base, wherein a sensor fixing block, a motor, a guide rail and a lead screw supporting seat are arranged on the base; a sliding block is arranged on the guide rail, a translation plate is fixed on the sliding block, and a threaded sleeve is arranged at the bottom of the translation plate; a screw rod is arranged on the screw rod supporting seat, and the screw rod penetrates through a threaded sleeve at the bottom of the translation plate and then is connected with a motor through a coupler; the translation plate is provided with a position switch and a sensor mounting block, and eight first tested sensors and first contact blocks are mounted on the sensor mounting block; eight second sensors to be measured, eight second contact blocks and a high-precision reference sensor are mounted on the sensor fixing block, the second sensors to be measured and the high-precision reference sensor are coaxially opposite to the first contact blocks, and the second contact blocks are coaxially opposite to the first sensors to be measured. The utility model discloses can be fast, batch, automatic check sensor's linear error, structural design is reasonable, ingenious, convenient to use.

Description

Sensor linear inspection machine

Technical Field

The utility model relates to an inspection machine especially relates to a sensor linearity inspection machine.

Background

The sensor is a precise element for measuring the length dimension, and in use, the moving distance of a measurer is displayed in an industrial personal computer, a PLC or a single chip microcomputer box through electric signal conversion, and the precision is generally required to be 0.0001 mm. The distance of the electric signal conversion and the actual moving distance are often inconsistent, the inconsistent error is called as a linear error, the linear error is controlled within a certain range to be a qualified sensor, and therefore the parameter must be checked in production.

The detection tool adopted in the prior production is a micro-motion bench, the principle of the micro-motion bench is that a movable reference block and a fixed reference block with the same angle move horizontally relatively to cause the position of the movable reference block to change in the vertical direction, the change is used as a reference quantity to be compared with the change of a sensor to detect the linear error of the sensor, and the detection data needs to be read and recorded manually. The method is limited by a mechanical structure, can only detect the sensor within a range of 2 mm in a measuring range at one time, has higher requirement on the service level of testers, and is not suitable for quick detection of batch production due to low efficiency and the need of allocating more testers during production.

Therefore, it is an urgent problem for those skilled in the art to develop a linear sensor tester.

SUMMERY OF THE UTILITY MODEL

The utility model relates to a solve the above-mentioned not enough, the utility model provides a linear inspection machine of sensor, it has many sensors of a test, inspects automatically, judges automatically whether qualified, the characteristics of automated generation inspection report.

The above object of the present invention is achieved by the following technical solutions: a sensor linear inspection machine comprises a base, wherein a sensor fixing block, a motor, a guide rail and a screw rod supporting seat are arranged on the base; the guide rail is provided with a sliding block, a translation plate is fixed on the sliding block, and the bottom of the translation plate is provided with a threaded sleeve; a screw rod is arranged on the screw rod supporting seat, penetrates through a threaded sleeve at the bottom of the translation plate and then is connected with a motor through a coupler;

the translation plate is provided with a position switch and a sensor mounting block, the sensor mounting block is provided with a first mounting hole, and eight first sensors to be tested and first contact blocks are mounted in the first mounting hole through jackscrews;

the sensor fixing block is provided with a second mounting hole, eight second measured sensors and second contact blocks are mounted in the second mounting hole through jackscrews, and a high-precision reference sensor is further mounted, wherein the second measured sensors and the high-precision reference sensor are coaxially opposite to the first contact blocks, and the second contact blocks are coaxially opposite to the first measured sensors.

Further, the motor, the first sensor to be measured, the second sensor to be measured, the high-precision reference sensor and the position switch are all connected to the control electronic box.

When the device works, the motor drives the translation plate and parts on the translation plate to move through the rotating screw rod; the action of the motor and the data acquisition of the first tested sensor, the second tested sensor, the high-precision reference sensor and the position switch are automatically completed under the control of the control electronic box, so that whether the linearity of the tested sensor is qualified or not can be automatically detected, the detection data is recorded, and a test report is automatically generated. The position switch is used for giving a position signal to the control electronic box to prevent action errors.

The inspection principle is as follows: the motor drives the translation plate and the parts on the translation plate to move through rotating the screw rod, so that the high-precision reference sensor and the second contact block are driven to move relatively, the moving distance is set to be A, meanwhile, the first sensor to be detected and the first contact block are driven to move relatively, and the moving distance is set to be B. And automatically comparing and checking the moving distance A of the high-precision reference sensor and the moving distance B of the sensor to be detected.

Compared with the prior art, the utility model the advantage be: the utility model discloses can be fast, batch, automatic check sensor's linear error, structural design is reasonable, ingenious, convenient to use.

Drawings

Fig. 1 is a schematic side view of the present invention.

Fig. 2 is a schematic top view of the present invention.

Detailed Description

The present invention will be described in detail with reference to the accompanying drawings.

As shown in fig. 1 and 2, a sensor linear inspection machine comprises a base 1, wherein a sensor fixing block 5, a motor 3, a guide rail 11 and a screw rod supporting seat 12 are mounted on the base 1; a sliding block is arranged on the guide rail 11, a translation plate 9 is fixed on the sliding block, and a threaded sleeve (not shown) is arranged at the bottom of the translation plate 9; a screw rod 10 is arranged on the screw rod supporting seat 12, and the screw rod 10 penetrates through a threaded sleeve at the bottom of the translation plate 9 and then is connected with the motor 3 through a coupler;

the translation plate 9 is provided with a position switch 13 and a sensor mounting block 6, the sensor mounting block 6 is provided with a first mounting hole, and eight first sensors to be tested 7 and first contact blocks 8 are mounted in the first mounting hole through jackscrews;

be equipped with the second mounting hole on the sensor fixed block 5, install eight second by survey sensor 14 and second contact piece 15 in the second mounting hole through the jackscrew, still install a high accuracy reference sensor 2, the second is surveyed sensor 14, high accuracy reference sensor 2 and first contact piece 8 coaxial relative, and second contact piece 15 is surveyed sensor 7 coaxial relative with first.

Further, the motor 3, the first measured sensor 7, the second measured sensor 14, the high-precision reference sensor 2 and the position switch 13 are all connected to the control electronic box 7.

When the device works, the motor 3 drives the translation plate 9 and parts on the translation plate to move through the rotating screw rod 10; the action of the motor 3, the data acquisition of the first tested sensor 7, the second tested sensor 14, the high-precision reference sensor 2 and the position switch 13 are automatically completed under the control of the control electronic box 4, so that whether the linearity of the tested sensor 7 is qualified or not can be automatically detected, the detection data is recorded, and a test report is automatically generated. The function of the position switch 13 is to give a position signal to the control electronics box 4 to prevent action errors.

The inspection principle is as follows: the motor 3 drives the translation plate 9 and parts thereon to move by rotating the screw rod 10, so as to drive the high-precision reference sensor 2 and the second contact block 15 to move relatively, the moving distance is set as A, and simultaneously the first sensor 7 to be measured and the first contact block 8 are driven to move relatively, and the moving distance is set as B. The moving distance A of the high-precision reference sensor 2 and the moving distance B of the measured sensor 7 are automatically compared and checked.

The above only is the embodiment of the present invention, not limiting the patent scope of the present invention, all the equivalent structures or equivalent processes that are used in the specification and the attached drawings or directly or indirectly applied to other related technical fields are included in the patent protection scope of the present invention.

Claims (2)

1. A sensor linear inspection machine which characterized in that: the device comprises a base, wherein a sensor fixing block, a motor, a guide rail and a screw rod supporting seat are arranged on the base; the guide rail is provided with a sliding block, a translation plate is fixed on the sliding block, and the bottom of the translation plate is provided with a threaded sleeve; a screw rod is arranged on the screw rod supporting seat, penetrates through a threaded sleeve at the bottom of the translation plate and then is connected with a motor through a coupler;

the translation plate is provided with a position switch and a sensor mounting block, the sensor mounting block is provided with a first mounting hole, and eight first sensors to be tested and first contact blocks are mounted in the first mounting hole through jackscrews;

the sensor fixing block is provided with a second mounting hole, eight second measured sensors and second contact blocks are mounted in the second mounting hole through jackscrews, and a high-precision reference sensor is further mounted, wherein the second measured sensors and the high-precision reference sensor are coaxially opposite to the first contact blocks, and the second contact blocks are coaxially opposite to the first measured sensors.

2. A sensor linearity testing machine according to claim 1, characterized in that: the motor, the first sensor to be measured, the second sensor to be measured, the high-precision reference sensor and the position switch are all connected to the control electronic box.

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