CN212409954U

CN212409954U - Pressure sensor pressure test platform

Info

Publication number: CN212409954U
Application number: CN202021302552.5U
Authority: CN
Inventors: 程运栋; 朱兆喜
Original assignee: Wuxi Suntan Technology Co ltd
Current assignee: Wuxi Suntan Technology Co ltd
Priority date: 2020-07-06
Filing date: 2020-07-06
Publication date: 2021-01-26
Anticipated expiration: 2030-07-06

Abstract

The utility model discloses a pressure sensor pressure test platform, including examining test table, with the fly leaf on adjustable vaulting pole and the adjustable vaulting pole movable part top of examining test table top surface one side fixed connection, the top surface of fly leaf is equipped with the control box, the bottom surface of fly leaf is equipped with the casing that has the magnetic screen function, the bottom of casing is equipped with the ejector pin, and the bottom department that the top surface of examining test table corresponds the ejector pin is equipped with the cushion, inside the top of ejector pin extended to the casing, and be connected with the inside actuating mechanism transmission of casing, actuating mechanism and control box electric connection. The utility model discloses in, because the control box is used for controlling the circular telegram of excitation winding, outage and the size of electric current or voltage, so can learn the intensity in magnetic field through the size of electric current or voltage, can obtain the effort size to the chip through the effort of magnetic field to the permanent magnet, and then the data that the contrast chip measured can learn measurement accuracy.

Description

Pressure sensor pressure test platform

Technical Field

The utility model relates to a pressure sensor testing arrangement field specifically is a pressure sensor pressure test platform.

Background

A pressure sensor is a device or apparatus that senses a pressure signal and converts the pressure signal into a usable output electrical signal according to a certain rule.

In the production process of the pressure sensor, a quality inspector can take a sample from a production line from time to perform sampling inspection, the traditional detection process is that the surface of the pressure sensor is pressed through manual operation, the acting force is detected through the pressure sensor, but the measuring precision of the pressure sensor is difficult to confirm because the pressed force cannot be accurately controlled.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a pressure sensor pressure test platform to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme:

the utility model provides a pressure sensor pressure test platform, is including examining test table, with the fly leaf on adjustable vaulting pole and the adjustable vaulting pole movable part top of examining test table top surface one side fixed connection, the top surface of fly leaf is equipped with the control box, the bottom surface of fly leaf is equipped with the casing that has the magnetic screen function, the bottom of casing is equipped with the ejector pin, and the bottom department that the top surface of examining test table corresponds the ejector pin is equipped with the cushion, inside the top of ejector pin extended to the casing, and be connected with the inside actuating mechanism transmission of casing, actuating mechanism and control box electric connection.

Furthermore, the driving mechanism comprises an excitation winding, a first buffer layer, a supporting plate, a permanent magnet and a second buffer layer from top to bottom in sequence.

Furthermore, the excitation winding is fixed on the top surface of the inner side of the shell and is electrically connected with the control box, and the first buffer layer is fixed on the bottom surface of the excitation winding.

Furthermore, the permanent magnet is of an annular structure and is sleeved on the ejector rod, the supporting plate is located at the top end of the ejector rod and is in bolted connection with the ejector rod, the permanent magnet is embedded at the bottom of the supporting plate, and the supporting plate is made of a non-magnetic material.

Furthermore, the second buffer layer is of an annular structure, the second buffer layer is embedded in the groove in the bottom surface of the inner side of the shell, and the depth of the groove is smaller than the thickness of the second buffer layer.

Furthermore, a guide sleeve is arranged at the bottom of the shell, the ejector rod penetrates through the guide sleeve, and a limiting block on the inner side of the guide sleeve is matched with a sliding groove on the outer side of the upper portion of the ejector rod.

Compared with the prior art, the beneficial effects of the utility model are that:

the utility model discloses in, because the control box is used for controlling the circular telegram of excitation winding, outage and the size of electric current or voltage, so can learn the intensity in magnetic field through the size of electric current or voltage, can obtain the effort size to the chip through the effort of magnetic field to the permanent magnet, and then the data that the contrast chip measured can learn measurement accuracy.

Drawings

FIG. 1 is a side view of a pressure sensor pressure test platform;

fig. 2 is a schematic structural diagram of a driving mechanism in a pressure testing platform of a pressure sensor.

In the figure: 1. a detection table; 2. an adjustable stay bar; 3. a movable plate; 4. a control box; 5. a housing; 6. a top rod; 7. cushion blocks; 8. a drive mechanism; 801. an excitation winding; 802. a first buffer layer; 803. a supporting plate; 804. a permanent magnet; 805. a second buffer layer; 9. a groove; 10. a guide sleeve; 11. a limiting block; 12. a chute.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-2, the present invention provides a technical solution:

the utility model provides a pressure sensor pressure test platform, including detecting platform 1, with the fly leaf 3 on the adjustable vaulting pole 2 and the adjustable vaulting pole 2 movable part top of detecting 1 top surface one side fixed connection of platform, the top surface of fly leaf 3 is equipped with control box 4, the bottom surface of fly leaf 3 is equipped with casing 5 that has the magnetic screen function, the bottom of casing 5 is equipped with ejector pin 6, and the bottom department that the top surface that detects platform 1 corresponds ejector pin 6 is equipped with cushion 7, the top of ejector pin 6 extends to inside the casing 5, and be connected with the 8 transmissions of the inside actuating mechanism of

casing

5, 8 and 4 electric connection of control box of actuating mechanism.

During detection, a sensor chip is placed on the cushion block 7, the height of the adjustable support rod 2 is adjusted, the bottom end of the ejector rod 6 is located on the top surface of the chip, the distance is adjusted downwards, and the height of the adjustable support rod 2 is fixed.

The drive mechanism 8 may employ the following components: including field winding 801, first buffer layer 802, bracing plate 803, permanent magnet 804 and second buffer layer 805.

The excitation winding 801 is fixed on the top surface of the inner side of the shell 5, the position of the excitation winding is kept unchanged, and the excitation winding is electrically connected with the control box 4, the control box 4 is used for controlling the power-on and power-off of the excitation winding 801 and the magnitude of current or voltage so as to adjust the intensity of magnetic field generated by the excitation winding 801, and the first buffer layer 802 is fixed on the bottom surface of the excitation winding 801 to prevent the bracing plate 803 from colliding with the excitation winding 801 and damaging parts.

Permanent magnet 804 is ring structure and the cover is established on ejector pin 6, fagging 803 is located the top of ejector pin 6 and with ejector pin 6 bolt joint, permanent magnet 804 inlays the bottom of locating fagging 803, fagging 803 is for not leading magnetic material, permanent magnet 804 cover is established and is used for restricting the horizontal direction removal of permanent magnet 804 on ejector pin 6, can set up the magnetic screen layer between permanent magnet 804 and ejector pin 6, fagging 803 is the structure of falling the U-shaped through the cross section of centre of a circle department, it is fixed with the permanent magnet 804 of embedding through the border, and fagging 803 is fixed in the top of ejector pin 6 through the bolt, the bolt is located the top surface department of fagging 803 and adopts the counter.

The second buffer layer 805 is of an annular structure, the second buffer layer 805 is embedded in the groove 9 on the bottom surface of the inner side of the shell 5, the depth of the groove 9 is smaller than the thickness of the second buffer layer 805, the second buffer layer 805 is of an annular structure, the thickness of the second buffer layer 805 is larger than the depth of the groove 9, the second buffer layer 805 extends out of the groove 9, the permanent magnet 804 is protected from being in direct contact with the bottom surface of the inner side of the shell 5, and the permanent magnet 804 is protected.

The bottom of the shell 5 is provided with a guide sleeve 10, the ejector rod 6 penetrates through the guide sleeve 10, a limiting block 11 on the inner side of the guide sleeve 10 is matched with a sliding groove 12 on the outer side of the upper portion of the ejector rod 6, and the limiting block 11 and the sliding groove 12 are matched to limit the rotation of the ejector rod 6, so that the distortion acting force generated on the surface of a chip is avoided.

Because the control box 4 is used for controlling the power-on and power-off of the excitation winding 801 and the magnitude of current or voltage, the strength of the magnetic field can be obtained through the magnitude of the current or voltage, the magnitude of the acting force on the chip can be obtained through the acting force of the magnetic field on the permanent magnet 804, and then the measurement accuracy can be obtained by comparing the data measured by the chip.

The first buffer layer 802 and the second buffer layer 805 may be made of rubber or silicone, including but not limited to the above materials.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a pressure sensor pressure test platform, is including examining test table (1), with examining adjustable vaulting pole (2) and the fly leaf (3) on adjustable vaulting pole (2) movable part top of test table (1) top surface one side fixed connection, its characterized in that: the top surface of fly leaf (3) is equipped with control box (4), the bottom surface of fly leaf (3) is equipped with casing (5) that have the magnetic screen function, the bottom of casing (5) is equipped with ejector pin (6), and the bottom department that the top surface of examining test table (1) corresponds ejector pin (6) is equipped with cushion (7), the top of ejector pin (6) extends to inside casing (5), and is connected with inside actuating mechanism (8) transmission of casing (5), actuating mechanism (8) and control box (4) electric connection.

2. The pressure sensor pressure test platform of claim 1, wherein: the driving mechanism (8) comprises an excitation winding (801), a first buffer layer (802), a supporting plate (803), a permanent magnet (804) and a second buffer layer (805) from top to bottom in sequence.

3. The pressure sensor pressure test platform of claim 2, wherein: the excitation winding (801) is fixed on the top surface of the inner side of the shell (5) and is electrically connected with the control box (4), and the first buffer layer (802) is fixed on the bottom surface of the excitation winding (801).

4. The pressure sensor pressure test platform of claim 2, wherein: the permanent magnet (804) is of an annular structure and is sleeved on the ejector rod (6), the supporting plate (803) is located at the top end of the ejector rod (6) and is in bolted connection with the ejector rod (6), the permanent magnet (804) is embedded at the bottom of the supporting plate (803), and the supporting plate (803) is made of a non-magnetic material.

5. The pressure sensor pressure test platform of claim 2, wherein: the second buffer layer (805) is of an annular structure, the second buffer layer (805) is embedded in the groove (9) on the bottom surface of the inner side of the shell (5), and the depth of the groove (9) is smaller than the thickness of the second buffer layer (805).

6. The pressure sensor pressure test platform of claim 1, wherein: the bottom of the shell (5) is provided with a guide sleeve (10), the ejector rod (6) penetrates through the guide sleeve (10), and a limiting block (11) on the inner side of the guide sleeve (10) is matched with a sliding groove (12) on the outer side of the upper portion of the ejector rod (6).