CN213422493U - Precision pressure displacement testing mechanism - Google Patents
Precision pressure displacement testing mechanism Download PDFInfo
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- CN213422493U CN213422493U CN202021829282.3U CN202021829282U CN213422493U CN 213422493 U CN213422493 U CN 213422493U CN 202021829282 U CN202021829282 U CN 202021829282U CN 213422493 U CN213422493 U CN 213422493U
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Abstract
The utility model belongs to the technical field of detection device, a accurate pressure displacement accredited testing organization is related to, including mounting plate, be fixed in the positive linear drive device of mounting plate, locate linear drive device's the epaxial pressure sensor of main and be fixed in the detection contact of the pressure sensor other end, still be equipped with grating displacement detection subassembly on the mounting plate, grating displacement detection subassembly includes that parallel arrangement is in the grating chi body of linear drive device one side and the grating chi magnetic head that is removed along grating chi body one side by linear drive device's main shaft drive. The precise pressure displacement testing mechanism reads the pressure fed back by the detection contact through the pressure sensor, and the grating ruler precisely acquires displacement information, so that the precise pressure displacement testing mechanism is suitable for the precise detection of the pressure displacement of the travel switch.
Description
Technical Field
The utility model relates to a detection device technical field, in particular to accurate pressure displacement accredited testing organization.
Background
The travel switch has higher measurement requirements on pressure and displacement, and the travel switch is used for safety protection under most conditions, so that whether the travel of a direct-acting contact of the travel switch reaches the standard of design or not under the condition of corresponding pressure.
Therefore, it is necessary to provide an accurate solution to the above problems.
SUMMERY OF THE UTILITY MODEL
A primary object of the present invention is to provide an accurate pressure displacement test mechanism, which can read pressure displacement information with high accuracy.
The utility model discloses a following technical scheme realizes above-mentioned purpose: the utility model provides a precision pressure displacement accredited testing organization, includes mounting plate, is fixed in the positive linear drive device of mounting plate, locates the epaxial pressure sensor of linear drive device's main and is fixed in the detection contact of the pressure sensor other end, still be equipped with grating displacement detection assembly on the mounting plate, grating displacement detection assembly includes parallel arrangement in the grating chi body of linear drive device one side and drives the grating chi magnetic head that removes along grating chi body one side by linear drive device's main shaft.
Specifically, the tail end of the detection contact is in a plane shape perpendicular to the axial direction of the linear driving device.
Specifically, the linear driving device is a servo electric cylinder.
Furthermore, the servo electric cylinder is controlled by a controller, and the detection information of the pressure sensor and the grating ruler body is fed back to the controller.
Specifically, a linear guide device is arranged between the linear driving device and the grating ruler body on the mounting base plate, a main shaft of the linear driving device is connected with a sliding block capable of sliding along the linear guide device through a connecting plate, and a magnetic head of the grating ruler is fixed on the sliding block.
Adopt above-mentioned technical scheme beneficial effect to be:
the precise pressure displacement testing mechanism reads the pressure fed back by the detection contact through the pressure sensor, and the grating ruler precisely acquires displacement information, so that the precise pressure displacement testing mechanism is suitable for the precise detection of the pressure displacement of the travel switch.
Drawings
Fig. 1 is a perspective view of a precision pressure displacement testing mechanism according to an embodiment.
The figures in the drawings represent:
1-mounting a bottom plate, 11-linear guide device;
2-linear driving device (servo electric cylinder), 21-detection contact, 22-pressure sensor, 23-connecting plate, 24-sliding block and 25-grating ruler magnetic head;
3-grating ruler body.
Detailed Description
The present invention will be described in further detail with reference to specific examples.
Example (b):
as shown in fig. 1, the utility model discloses an accurate pressure displacement accredited testing organization, including mounting plate 1, be fixed in the positive linear drive device 2 of mounting plate 1, locate linear drive device 2's the main epaxial pressure sensor 22 and be fixed in the detection contact 21 of the pressure sensor 22 other end, still be equipped with grating displacement detection subassembly on mounting plate 1, grating displacement detection subassembly includes parallel arrangement in the grating chi body 3 of linear drive device 2 one side and drives along grating chi body 3 one side removal's grating chi magnetic head 25 by linear drive device 2's main shaft. In operation, the linear driving device 2 provides a pressing force to the detection contact 21, and a reaction force applied to the detection contact 21 causes the pressure sensor 22 to read pressure information. The grating scale is composed of a grating scale body 3 and a grating scale magnetic head 25, and determines the displacement amount by using the relative position of the two. The signal output by the sensor is digital pulse, and the sensor has the characteristics of large detection range, high detection precision and high response speed. The precise pressure displacement testing mechanism reads the pressure fed back by the detection contact through the pressure sensor 22, and the grating ruler accurately obtains displacement information, so that the precise pressure displacement testing mechanism is suitable for the precise detection of the pressure displacement of the travel switch.
As shown in fig. 1, the distal end of the detection feeler 21 is planar and perpendicular to the axial direction of the linear drive device 2. Thus, the detection contact 21 is pressed on the detected object by adopting surface contact, and the feedback obtained pressure information is more accurate.
As shown in fig. 1, the linear drive device 2 is a servo electric cylinder. The servo electric cylinder can gradually increase the pressure applied by the detection contact 21, so that the information obtained by the pressure sensor 22 and the grating scale can be dynamically correlated.
The servo electric cylinder 2 is controlled by a controller, and the detection information of the pressure sensor 22 and the grating ruler body 3 is fed back to the controller. By using the controller, the grating ruler can calibrate the displacement of the main shaft of the servo electric cylinder 2.
As shown in fig. 1, the mounting base plate 1 is provided with a linear guide 11 between the linear drive unit 2 and the scale body 3, a main shaft of the linear drive unit 2 is connected to a slider 24 slidable along the linear guide 11 via a connecting plate 23, and a scale head 25 is fixed to the slider 24. The linear guide device 11 may be a slide rail or a slide bar, etc. that limits the slider 24 from moving linearly, so that the magnetic head 25 of the grating ruler can move accurately along the parallel direction of the applied pressure, and the displacement information read by the grating ruler is more accurate.
What has been described above are only some embodiments of the invention. For those skilled in the art, without departing from the inventive concept, several modifications and improvements can be made, which are within the scope of the invention.
Claims (5)
1. The utility model provides a precision pressure displacement accredited testing organization which characterized in that: including mounting plate, be fixed in the positive sharp drive arrangement of mounting plate, locate sharp drive arrangement's the epaxial pressure sensor of main and be fixed in the detection contact of the pressure sensor other end, still be equipped with grating displacement detection subassembly on the mounting plate, grating displacement detection subassembly includes parallel arrangement in the grating chi body of sharp drive arrangement one side and the grating chi magnetic head that moves along grating chi body one side is driven by linear drive arrangement's main shaft.
2. The precision pressure displacement test mechanism of claim 1, wherein: the tail end of the detection contact is in a plane shape perpendicular to the axial direction of the linear driving device.
3. The precision pressure displacement test mechanism of claim 1, wherein: the linear driving device is a servo electric cylinder.
4. The precision pressure displacement test mechanism of claim 3, wherein: the servo electric cylinder is controlled by a controller, and the detection information of the pressure sensor and the grating ruler body is fed back to the controller.
5. The precision pressure displacement test mechanism of claim 1, wherein: the linear guide device is arranged between the linear driving device and the grating ruler body on the mounting base plate, a main shaft of the linear driving device is connected with a sliding block capable of sliding along the linear guide device through a connecting plate, and a magnetic head of the grating ruler is fixed on the sliding block.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021829282.3U CN213422493U (en) | 2020-08-27 | 2020-08-27 | Precision pressure displacement testing mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021829282.3U CN213422493U (en) | 2020-08-27 | 2020-08-27 | Precision pressure displacement testing mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213422493U true CN213422493U (en) | 2021-06-11 |
Family
ID=76258640
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021829282.3U Active CN213422493U (en) | 2020-08-27 | 2020-08-27 | Precision pressure displacement testing mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213422493U (en) |
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2020
- 2020-08-27 CN CN202021829282.3U patent/CN213422493U/en active Active
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