CN213579134U - Linear displacement sensor based on magnetic grid ruler - Google Patents
Linear displacement sensor based on magnetic grid ruler Download PDFInfo
- Publication number
- CN213579134U CN213579134U CN202022063661.2U CN202022063661U CN213579134U CN 213579134 U CN213579134 U CN 213579134U CN 202022063661 U CN202022063661 U CN 202022063661U CN 213579134 U CN213579134 U CN 213579134U
- Authority
- CN
- China
- Prior art keywords
- magnetic
- shell
- telescopic rod
- displacement
- telescopic
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
Abstract
The utility model discloses a linear displacement sensor based on a magnetic grid ruler, which comprises a telescopic component and a displacement measuring component arranged in the telescopic component; the telescopic assembly comprises a shell and a telescopic rod which are mutually connected in a sliding manner; the displacement measuring assembly comprises magnetic rulers which are arranged in the shell correspondingly and a magnetic reading head which is arranged at one end of the telescopic rod, wherein the magnetic rulers are arranged in the shell; when the shell and the telescopic rod slide, the magnetic reading head generates displacement oscillogram data relative to the displacement of the magnetic scale. The two objects which are linearly displaced are connected by the telescopic assembly consisting of the shell and the telescopic rod which can slide relatively, the displacement distance between the shell and the telescopic rod is measured to measure the displacement distance between the two objects which are linearly displaced, and the problems that the measurement precision is reduced or the measurement data is interrupted and the like due to the rotation vibration of the objects or the blocking interference of the sensor when the sensor is directly utilized to measure the relative displacement distance between the two objects are solved.
Description
Technical Field
The utility model discloses be applied to the displacement measurement field, specifically be a linear displacement sensor based on magnetic grid chi.
Background
The linear displacement measurement operation is commonly applied in various scenes, and most of the existing linear distance measurement methods are to install one or a pair of sensors on the surfaces of two objects which are displaced relatively to each other to sense the displacement between the two objects, but the operation method of arranging the sensors on the surfaces of the objects has the following defects: 1. when the object moving relatively vibrates or rotates, the accuracy of the sensor on the surface of the object is greatly affected. 2. When other barriers appear between the objects with relative displacement and block signals of the ranging sensor, the displacement measurement is interrupted, so that the overall ranging effect is influenced.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that to prior art not enough, provide a linear displacement sensor based on magnetic grid chi.
In order to solve the technical problem, the linear displacement sensor based on the magnetic grid ruler comprises a telescopic component and a displacement measuring component arranged in the telescopic component; the telescopic assembly comprises a shell and a telescopic rod which are mutually connected in a sliding manner; the displacement measuring assembly comprises magnetic rulers which are arranged in the shell correspondingly and a magnetic reading head which is arranged at one end of the telescopic rod, wherein the magnetic rulers are arranged in the shell; when the shell and the telescopic rod slide, the magnetic reading head generates displacement oscillogram data relative to the displacement of the magnetic scale.
As a possible implementation manner, further, a sliding block for preventing the telescopic rod from rotating is arranged on the telescopic rod, and the sliding block is connected with the shell in a sliding mode and can move in a sliding mode relatively.
As a possible implementation manner, further, a connection cable is arranged in the inner cavity of the telescopic rod, two ends of the connection cable respectively penetrate through two ends of the telescopic rod, one end of the connection cable is connected with the magnetic reading head, the other end of the connection cable is connected with the aviation plug, and the aviation plug is fixedly installed on the shaft side of one end of the telescopic rod.
As a possible implementation manner, further, the aviation plug is connected with the displacement processing module through an external cable, the magnetic reading head transmits the oscillogram data which is displaced relative to the displacement of the magnetic scale to the displacement processing module through the connecting cable, the aviation plug and the external cable, and the displacement processing module analyzes the numerical value of the relative displacement by using the oscillogram data.
As a better choice, the specific model of the displacement processing module is DS 192-6.
As a possible embodiment, further, the housing and the outer end of the telescopic rod are respectively provided with a first connector and a second connector.
As a possible implementation manner, further, a dust cover and a sealing ring are arranged at one end of the shell, which is in contact with the telescopic rod, the dust cover is fixedly arranged at the outer side of the end portion of the shell, which is in contact with the telescopic rod, and wraps the end portion, and the sealing ring is arranged at the inner edge of the end portion of the shell, which is in contact with the telescopic rod.
As a possible implementation manner, further, the magnetic scale is installed in the inner cavity of the housing through a magnetic scale fixing seat, sliding grooves corresponding to and matched with the sliding blocks are formed in two side edges of the magnetic scale fixing seat, and the sliding blocks are connected with the housing in a sliding manner through the sliding grooves in the side edges of the magnetic scale fixing seat.
As a possible implementation manner, further, the sliding block is fixedly connected to one end of the telescopic rod, which is located in the inner cavity of the shell, and the magnetic reading head is mounted on the sliding block.
The utility model adopts the above technical scheme, following beneficial effect has:
1. the utility model discloses a setting is connected two articles of straight line displacement by the flexible subassembly that shell and the telescopic link that can relative slip are constituteed, and the displacement distance through measuring shell and telescopic link reaches the purpose of measuring two article displacement distances of straight line displacement, has solved probably because the rotatory vibrations of article or because the sensor receives to block the measurement accuracy that leads to and descend or measured data and be interrupted the scheduling problem when directly utilizing the sensor to measure two article relative displacement distances.
2. The utility model discloses a set up the displacement measurement subassembly of constituteing by relative movement's magnetic reading head and magnetic scale inside the flexible subassembly for the device can carry out real-time measurement to the displacement of flexible subassembly, and promote the measuring precision through matched with magnetic reading head and magnetic scale, prevent that telescopic link and magnetic reading head from taking place rotatory influence measurement accuracy at flexible in-process through setting up the slider that is used for preventing the telescopic link rotation. The relative position change is generated between the magnetic reading head and the magnetic scale, the relation of the relative position change is read by the magnetic reading head and forms a specific waveform signal, the specific waveform signal is transmitted to the displacement processing module through a cable connected with the magnetic reading head, and the displacement processing module analyzes the numerical value of the relative displacement by utilizing the oscillogram data so as to achieve the aim of accurate measurement.
Drawings
The present invention will be described in further detail with reference to the following drawings and embodiments:
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is an enlarged schematic view of part B of the present invention;
fig. 3 is a schematic view of the three-dimensional structure of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the drawings of the embodiments of the present invention will be combined to clearly and completely describe the technical solutions of the embodiments of the present invention.
As shown in fig. 1-3, the utility model provides a linear displacement sensor based on a magnetic grid ruler, which comprises a telescopic component 1 and a displacement measuring component 2 arranged inside the telescopic component 1; the telescopic assembly 1 comprises a shell 11 and a telescopic rod 12 which are mutually connected in a sliding way; the telescopic rod 12 is provided with a sliding block 13 for preventing the telescopic rod 12 from rotating, and the sliding block 13 is connected with the shell 11 in a sliding manner and can move in a relative sliding manner. The outer ends of the shell 11 and the telescopic rod 12 are respectively provided with a first connector 14 and a second connector 15. The dust cover 16 and the sealing ring 17 are arranged at one end, in contact with the telescopic rod 12, of the shell 11, the dust cover 16 is fixedly arranged on the outer side of the end, in contact with the telescopic rod 12, of the shell 11 and wraps the end, and the sealing ring 17 is arranged on the inner edge of the end, in contact with the telescopic rod 12, of the shell 11. The inner cavity of one end of the shell 11, which is in contact with the telescopic rod 12, is provided with a linear bearing 18, the outer wall of the linear bearing 18 is fixedly connected with the inner wall of the end part of the shell 11, and the telescopic rod 12 is inserted into the inner cavity of the linear bearing 18 and is in sliding connection with the inner wall. The displacement measuring component 2 comprises a magnetic ruler 21 which is arranged in the shell 11 and is arranged correspondingly with each other, and a magnetic reading head 22 which is arranged at one end of the telescopic rod 12 positioned in the inner cavity of the shell 11; when the shell 11 and the telescopic rod 12 slide, the magnetic reading head 22 displaces relative to the magnetic scale 21 to generate displacement oscillogram data. The two objects which are linearly displaced are connected by the telescopic assembly 1 consisting of the shell 11 and the telescopic rod 12 which can slide relatively, the displacement distance of the two objects which are linearly displaced is measured by measuring the displacement distance of the shell 11 and the telescopic rod 12, and the problems that the measurement precision is reduced or the measurement data is discontinuous and the like due to the rotation vibration of the objects or the blocking interference of the sensors when the sensors are directly utilized to measure the relative displacement distance of the two objects are solved. The magnetic scale 21 is installed in the inner cavity of the shell 11 through a magnetic scale fixing seat 27, sliding grooves corresponding to and matched with the sliding blocks 13 are formed in two side edges of the magnetic scale fixing seat 27, and the sliding blocks 13 are connected with the shell 11 in a sliding mode through the sliding grooves in the side edges of the magnetic scale fixing seat 27. The sliding block 13 is fixedly connected to one end of the telescopic rod 12, which is located in the inner cavity of the shell 11, and the magnetic reading head 22 is installed on the sliding block 13. The inner cavity of the telescopic rod 12 is provided with a connecting cable 23, two ends of the connecting cable 23 penetrate through two ends of the telescopic rod 12 respectively, one end of the connecting cable 23 is connected with the magnetic reading head 22, the other end of the connecting cable is connected with the aviation plug 24, and the aviation plug 24 is fixedly installed on one end shaft side of the telescopic rod 12. The aviation plug 24 is connected with the displacement processing module 26 through an external cable 25, the magnetic reading head 22 transmits the oscillogram data which is displaced relative to the magnetic scale 21 and generates displacement to the displacement processing module 26 through a connecting cable 23, the aviation plug 24 and the external cable 25, and the displacement processing module 26 analyzes the numerical value of the relative displacement by using the oscillogram data and transmits the numerical value to the motion device control system for post-processing through an industrial bus (such as an EtherCAT bus, a CANopen bus and other industrial communication protocol buses); the specific model of the displacement processing module 26 described above may be selected to be DS 192-6. Through the inside displacement measurement subassembly 2 that constitutes by relative movement's magnetic reading head 22 and magnetic scale 21 that sets up at flexible subassembly 1 for the device can carry out real-time measurement to the displacement of flexible subassembly 1, and promote the measuring precision through matched with magnetic reading head 22 and magnetic scale 21, prevent that telescopic link 12 and magnetic reading head 22 from taking place rotation influence measurement accuracy at flexible in-process through setting up the slider 13 that is used for preventing telescopic link 12 rotation. The relative position change is generated between the magnetic reading head 22 and the magnetic scale 21, the relation of the relative position change is read by the magnetic reading head 22 to form a specific waveform signal, the specific waveform signal is transmitted to the displacement processing module 26 through a cable connected with the magnetic reading head 22, and the displacement processing module 26 analyzes the numerical value of the relative displacement by utilizing the waveform data to achieve the purpose of accurate measurement. When the displacement processing module 26 works, the first connector 14 and the second connector 15 are respectively connected with two relatively displaced objects, wherein the first connector 14 is connected with an immovable object in the two relatively displaced objects, the second connector 15 is connected with an equipment component which needs to feed back the change of the linear motion position in real time, when the two objects are relatively linearly displaced, the telescopic rod 12 is pulled to move relative to the shell 11, the telescopic rod 12 slides in the linear bearing 18 in the process, the sliding block 13 slides on the sliding groove at the side edge of the magnetic scale fixing seat 27 to stabilize the whole sliding process, at the moment, the magnetic reading head 22 in the inner cavity of the shell 11 transmits the oscillogram data which is displaced relative to the magnetic scale 21 to the displacement processing module 26 through the connecting cable 23, the aviation plug 24 and the external cable 25, and the displacement processing module 26 analyzes the numerical value of the relative displacement by utilizing the oscillogram data and then transmits the numerical value through an industrial, CANopen bus, etc.) to the motion device control system for post-processing, so as to achieve the purpose of measuring the relative displacement of two moving objects.
Claims (9)
1. The utility model provides a linear displacement sensor based on magnetic grid chi which characterized in that: the displacement measuring device comprises a telescopic component and a displacement measuring component arranged in the telescopic component;
the telescopic assembly comprises a shell and a telescopic rod which are mutually connected in a sliding manner;
the displacement measuring assembly comprises magnetic rulers which are arranged in the shell correspondingly and a magnetic reading head which is arranged at one end of the telescopic rod, wherein the magnetic rulers are arranged in the shell; when the shell and the telescopic rod slide, the magnetic reading head generates displacement oscillogram data relative to the displacement of the magnetic scale.
2. The linear displacement sensor based on the magnetic grid ruler as claimed in claim 1, wherein: the telescopic rod is provided with a sliding block used for preventing the telescopic rod from rotating, and the sliding block is connected with the shell in a sliding mode and can slide and displace relatively.
3. The linear displacement sensor based on the magnetic grid ruler as claimed in claim 1, wherein: the inner cavity of the telescopic rod is provided with a connecting cable, two ends of the connecting cable penetrate through two ends of the telescopic rod respectively, one end of the connecting cable is connected with the magnetic reading head, the other end of the connecting cable is connected with the aviation plug, and the aviation plug is fixedly installed on the shaft side of one end of the telescopic rod.
4. A linear displacement sensor based on a magnetic scale according to claim 3, characterized in that: the aviation plug is connected with the displacement processing module through an external cable, the magnetic reading head transmits oscillogram data which is displaced relative to the magnetic scale to the displacement processing module through the connecting cable, the aviation plug and the external cable, and the displacement processing module analyzes the numerical value of the relative displacement by utilizing the oscillogram data.
5. The linear displacement sensor based on the magnetic grid ruler as claimed in claim 4, wherein: the specific model of the displacement processing module is DS 192-6.
6. The linear displacement sensor based on the magnetic grid ruler as claimed in claim 1, wherein: the outer ends of the shell and the telescopic rod are respectively provided with a first connector and a second connector.
7. The linear displacement sensor based on the magnetic grid ruler as claimed in claim 1, wherein: the one end that casing and telescopic link contacted is equipped with dust cover and sealing washer, and the dust cover is fixed to be set up in the tip outside of casing and telescopic link contact one end and parcel tip, and the tip inner edge of casing and telescopic link contact one end is located to the sealing washer.
8. The linear displacement sensor based on the magnetic grid ruler as claimed in claim 1, wherein: the magnetic scale is installed in the inner cavity of the shell through the magnetic scale fixing seat, sliding grooves corresponding to and matched with the sliding blocks are formed in two side edges of the magnetic scale fixing seat, and the sliding blocks are connected with the shell in a sliding mode through the sliding grooves in the side edges of the magnetic scale fixing seat.
9. The linear displacement sensor based on the magnetic grid ruler as claimed in claim 2, wherein: the slider is fixedly connected to one end, located in the inner cavity of the shell, of the telescopic rod, and the magnetic reading head is installed on the slider.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022063661.2U CN213579134U (en) | 2020-09-18 | 2020-09-18 | Linear displacement sensor based on magnetic grid ruler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022063661.2U CN213579134U (en) | 2020-09-18 | 2020-09-18 | Linear displacement sensor based on magnetic grid ruler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213579134U true CN213579134U (en) | 2021-06-29 |
Family
ID=76576177
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022063661.2U Active CN213579134U (en) | 2020-09-18 | 2020-09-18 | Linear displacement sensor based on magnetic grid ruler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213579134U (en) |
-
2020
- 2020-09-18 CN CN202022063661.2U patent/CN213579134U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP3260811A1 (en) | Method for operating a coordinate measuring machine | |
| CN102275093B (en) | Workpiece measuring system based on five-axis numerical control system | |
| CN105547219A (en) | Linear and angular displacement sensor measurement system and method | |
| CN106767956B (en) | Magnetic induction absolute value encoder of high-speed high-precision machine tool spindle and measuring gear thereof | |
| CN109458969B (en) | Multi-axis synchronous measurement and control method of position full closed loop | |
| US20050206372A1 (en) | Scale | |
| CN113029222A (en) | Calibration method and device for magnetic encoder and magnetic encoder | |
| CN202204481U (en) | Gear chamfering laser gauge | |
| CN205352345U (en) | Straight line and angle displacement sensor measurement device | |
| CN213579134U (en) | Linear displacement sensor based on magnetic grid ruler | |
| CN103776374A (en) | High-speed, high-accuracy and high-redundancy absolute grating ruler reading head device | |
| CN110762339A (en) | Mileage locator for in-pipeline detection and mileage positioning acquisition method | |
| CN105157583B (en) | A kind of axle journal length measuring system | |
| CN102322819A (en) | Gear chamfer laser measuring instrument | |
| CN110481012A (en) | One kind being used for the self-leveling sensor of 3D printing | |
| CN103162608A (en) | Displacement measuring device | |
| CN206583466U (en) | High speed and super precision machine tool chief axis magnetic induction absolute value encoder and its measurement gear | |
| CN209541685U (en) | Measuring device | |
| CN207636086U (en) | A kind of autonomous type opening self-detective instrument | |
| CN203204377U (en) | Synchronization control device for a plurality of detection devices in vision measurement | |
| CN113566689B (en) | Displacement sensor capable of monitoring transverse direction and longitudinal direction simultaneously | |
| CN202974319U (en) | Dynamic measuring device for angle measurement precision | |
| CN112525055A (en) | Linear displacement measuring system based on magnetic grid ruler and using method thereof | |
| CN211450057U (en) | Mileage locator for detection in pipeline | |
| CN211063480U (en) | High-precision electric cylinder |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |