A film sensor detection calibration machine

Abstract

The utility model discloses a kind of film sensor detection calibration machines, it includes: rack, standard sensor being set on rack, fixture being set on standard sensor and being used for positioning product, test module being set above fixture and for product exerting force, and lifting drive module for driving test module lifting and product contact and disengagement.Adopt the standard sensor being set below product, by comparing the measurement results of product and standard sensor under same condition, to judge whether product meets precision requirement, for product not meeting requirement, utilize built-in controller to automatically fit calibration curve, and store to sensor chip, make product measurement results and standard sensor keep consistent, realize the automatic calibration of product.The standard sensor is standard pressure sensor.

Description

Technical fields:

[0001] This utility model relates to the field of sensor detection technology, and specifically to a thin-film sensor detection and calibration machine. Background technology:

[0002] Thin-film sensors are miniature sensors based on thin-film materials. Their core function is to convert changes in physical quantities (such as temperature, pressure, humidity, light intensity, etc.) or chemical quantities (such as gas concentration, biomolecules, etc.) into electrical signals.

[0003] Chinese utility model patent CN222166405U discloses a pressure detection device for a thin-film sensor. In this patent, a hydraulic cylinder drives a middle plate to press down, tightly adhering the thin-film sensor to the airbag membrane covering the air groove. Gas is then injected into the air groove, and the expansion of the airbag membrane applies uniform pressure to the sensor. The device employs a staggered design between the pressure frame and the sealing ring, combined with an arc-shaped structure, to ensure airtightness and prevent damage to the airbag membrane. Simultaneously, dual start buttons and an emergency stop function ensure operational safety, and the sealing frame structure avoids environmental interference. While this device significantly improves detection efficiency through automated pressurization and hydraulic cylinder lifting compared to traditional testing methods that require repeated screw removal, it can adapt to sensors of different sizes, combining high accuracy and convenience, and is suitable for batch testing and pressure sensing performance evaluation under complex working conditions. However, since this detection device uses gas as the detection medium, it has high requirements for airtightness. Any leakage will introduce significant errors in the detection results, failing to meet the requirements for long-term stable detection.

[0004] In view of the above, the inventors propose the following technical solution. Utility model content:

[0005] The purpose of this invention is to overcome the shortcomings of the prior art and provide a thin-film sensor detection and calibration machine.

[0006] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: a thin-film sensor testing and calibration machine, comprising: a frame, a standard sensor mounted on the frame, a fixture mounted on the standard sensor for positioning the product, a test module mounted above the fixture for applying force to the product, and a lifting drive module for driving the test module to rise and fall and to contact and detach from the product.

[0007] Furthermore, in the above technical solution, the frame is provided with a first column and a second column for supporting the lifting and lowering movement of the test module, wherein the lifting seat is located between the first column and the second column, and a first slide rail slider assembly and a second slide rail slider assembly are respectively provided between the lifting seat and the first column and the second column; the test module is installed on the lifting seat, and the lifting drive module drives the lifting seat to drive the test module to lift and lower.

[0008] Furthermore, in the above technical solution, the lifting drive module includes a lead screw module vertically arranged beside the fixture and connected to the lifting seat, a motor arranged in parallel beside the lead screw module for driving the lead screw module to work, and a transmission component arranged between the lead screw module and the motor.

[0009] Furthermore, in the above technical solution, the first slide rail slider assembly includes a slide rail vertically disposed on the first column and a first slider and a second slider disposed on the lifting seat and matched with the slide rail. The second slide rail slider assembly has the same structure as the first slide rail slider assembly.

[0010] Furthermore, in the above technical solution, the worktable of the frame is provided with a mounting base for installing a standard sensor, which is mounted on the worktable by at least four first screws.

[0011] Furthermore, in the above technical solution, the standard sensor is a standard pressure sensor.

[0012] Furthermore, in the above technical solution, the frame is also equipped with a temperature controller and an operation panel, which includes an emergency stop button, a reset button, a speed adjustment knob, an up button, a down button, and a standard sensor magnification display.

[0013] Furthermore, in the above technical solution, the frame is provided with a first safety light curtain and a second safety light curtain located on both sides of the fixture; and a support column is provided below the worktable for support at the bottom of the fixed base.

[0014] Furthermore, in the above technical solution, the test module includes a floating seat, a pressure head disposed below the floating seat and used to contact the product, and a spring disposed above the floating seat. The floating seat is provided with a positioning rod for the spring to be sleeved and installed, and a limit stop is provided at the upper end of the spring.

[0015] Furthermore, in the above technical solution, the pressure head is installed at the bottom of the floating seat by at least two second screws.

[0016] After adopting the above technical solution, the present invention has the following beneficial effects compared with the prior art: In the present invention, a standard sensor is set at the bottom of the product. By comparing the measurement results of the product and the standard sensor under the same conditions, it is determined whether the product meets the accuracy requirements. For products that do not meet the requirements, the built-in controller automatically fits the calibration curve and stores it in the sensor chip, so that the product measurement results are consistent with the standard sensor, thereby realizing the automatic calibration of the product. Attached image description:

[0017] Figure 1 This is a schematic diagram of the structure of this utility model. Figure 1 ;

[0018] Figure 2 This is a schematic diagram of the structure of this utility model. Figure 2 ;

[0019] Figure 3 This is a schematic diagram of the test module in this utility model;

[0020] Figure 4 This is a schematic diagram of the installation of the standard sensor in this utility model;

[0021] Figure 5 This is a schematic diagram of the lifting drive module in this utility model;

[0022] Figure 6 This is the main view after the control panel is hidden in this utility model. Detailed implementation method:

[0023] The present invention will be further described below with reference to specific embodiments and accompanying drawings.

[0024] See Figures 1 to 6 The image shows a thin-film sensor testing and calibration machine, comprising: a frame 1, a standard sensor 2 mounted on the frame 1, a fixture 3 mounted on the standard sensor 2 for positioning product A, a test module 4 positioned above the fixture 3 for applying force to product A, and a lifting drive module 5 for driving the test module 4 to move up and down to contact and detach from product A. By placing the standard sensor 2 below product A, the measurement results of product A and the standard sensor 2 are compared under the same conditions to determine whether product A meets the accuracy requirements. For product A that does not meet the requirements, a calibration curve is automatically fitted using a built-in controller and stored in the sensor chip, ensuring that the measurement results of product A are consistent with those of the standard sensor 2, thus achieving automatic calibration of product A. The standard sensor 2 is a standard pressure sensor.

[0025] The frame 1 is equipped with a first column 11, a second column 12, and a lifting seat 13 for supporting the lifting movement of the test module 4. The lifting seat 13 is located between the first column 11 and the second column 12, and a first slide rail slider assembly 14 and a second slide rail slider assembly 15 are respectively arranged between the lifting seat 13 and the first column 11 and the second column 12. The test module 4 is mounted on the lifting seat 13, and the lifting drive module 5 drives the test module 4 to move up and down by driving the lifting seat 13. The first slide rail slider assembly 14 includes a slide rail 141 vertically arranged on the first column 11 and a first slider 142 and a second slider 143 arranged on the lifting seat 13 and matched with the slide rail 141. The second slide rail slider assembly 15 has the same structure as the first slide rail slider assembly 14. The test module 4 is supported by a first column 11 and a second column 12 set on the frame 1. A first slide rail slider assembly 14 and a second slide rail slider assembly 15 are set between the lifting seat 13 and the first column 11 and the second column 12. The first slide rail slider assembly 14 and the second slide rail slider assembly 15 are used to move the lifting seat 13 up and down for positioning. The slide rail slider module bears the lateral force to ensure stability.

[0026] The lifting drive module 5 includes a lead screw module 51 vertically arranged beside the fixture 3 and connected to the lifting seat 13, a motor 52 arranged in parallel beside the lead screw module 51 for driving the lead screw module 51, and a transmission assembly arranged between the lead screw module 51 and the motor 52.

[0027] The worktable of the frame 1 is provided with a mounting base 20 for installing a standard sensor 2. The mounting base 20 is mounted on the worktable with at least four first screws. Mounting the mounting base 20 to the frame 1 with four first screws facilitates replacement of the mounting base 20 and ensures long-term detection accuracy.

[0028] The frame 1 is also equipped with a temperature controller 16 and an operation panel 17. The operation panel 17 is equipped with an emergency stop button 171, a reset button 172, a speed adjustment knob 173, an up button 174, a down button 175, and a standard sensor magnification display 176.

[0029] The test module 4 includes a floating seat 41, a pressure head 42 positioned below the floating seat 41 for contact with product A, and a spring 43 positioned above the floating seat 41. The floating seat 41 has a positioning rod 44 for mounting the spring 43, and a limit stop 45 is provided at the upper end of the spring 43. The pressure head 42 is mounted to the bottom of the floating seat 41 using at least two second screws 420. Mounting the pressure head 42 to the bottom of the floating seat 41 with two second screws 420 facilitates replacement of the pressure head 42 and ensures long-term testing accuracy. Similarly, the positioning rod 44 is limited and mounted on the lifting seat 13 by a support baffle 46, which is fixed by two third screws, facilitating spring 43 replacement and ensuring long-term testing accuracy. The limit stop 45 is also mounted on the lifting seat 13 with screws.

[0030] The frame 1 is equipped with a first safety light curtain 6 and a second safety light curtain 7 located on both sides of the fixture 3; a support column 8 is provided below the worktable surface for support at the bottom of the fixed base 20. In this utility model, the spring 4 applies a maximum force of 181 kg. Considering that if the entire force is borne on the worktable surface, it will deform under prolonged stress, a support column 8 with a diameter of 40 mm is added below the stress point, thereby improving the service life of the equipment.

[0031] In summary, when this invention is in operation, product A is placed on fixture 3, and the descent button 175 is pressed. The lifting drive module 5 drives the lifting seat 13 to lower the test module 4, causing the pressure head 42 to press against product A. At this time, both product A and the standard sensor 2 are under pressure and output pressure values. Since the pressure head 42 is movably mounted on the lifting seat 13 via the floating seat 41, when the lifting drive module 5 continues to push the pressure head 42 down, the floating seat 41 reacts against the spring 43, causing the pressure on product A to continuously change. By comparing the pressure values ​​simultaneously fed back by product A and the standard sensor 2, it is possible to detect whether product A meets the production requirements. For unqualified product A, the built-in controller of product A automatically fits a calibration curve based on the standard sensor 2, thereby achieving automatic calibration of product A. Of course, to ensure the accuracy of calibration, the descent button 174 and the descent button 175 can be pressed repeatedly to make the pressure head 42 of the test module 4 repeatedly contact and press against product A, thereby continuously calibrating product A and ensuring that the calibrated product A meets the requirements.

[0032] Of course, the above description is only a specific embodiment of the present utility model and is not intended to limit the scope of the present utility model. All equivalent changes or modifications made to the structure, features and principles described in the claims of the present utility model should be included in the scope of the claims of the present utility model.

Claims

1. A thin-film sensor testing and calibration machine, characterized in that, include: The frame (1), the standard sensor (2) mounted on the frame (1), the fixture (3) mounted on the standard sensor (2) and used to position the product (A), the test module (4) mounted above the fixture (3) and applied force to the product (A), and the lifting drive module (5) used to drive the test module (4) to rise and fall and contact and detach from the product (A).

2. The thin-film sensor testing and calibration machine according to claim 1, characterized in that: The frame (1) is provided with a first column (11) and a second column (12) for supporting the lifting and lowering movement of the test module (4) and a lifting seat (13). The lifting seat (13) is located between the first column (11) and the second column (12), and a first slide rail slider assembly (14) and a second slide rail slider assembly (15) are respectively provided between the lifting seat (13) and the first column (11) and the second column (12). The test module (4) is installed on the lifting seat (13), and the lifting drive module (5) drives the test module (4) to lift and lower by driving the lifting seat (13).

3. The thin-film sensor testing and calibration machine according to claim 2, characterized in that: The lifting drive module (5) includes a lead screw module (51) vertically arranged beside the fixture (3) and connected to the lifting seat (13), a motor (52) arranged in parallel beside the lead screw module (51) and used to drive the lead screw module (51) to work, and a transmission component arranged between the lead screw module (51) and the motor (52).

4. A thin-film sensor testing and calibration machine according to claim 3, characterized in that: The first slide rail slider assembly (14) includes a slide rail (141) vertically disposed on the first column (11) and a first slider (142) and a second slider (143) disposed on the lifting seat (13) and matched with the slide rail (141). The second slide rail slider assembly (15) has the same structure as the first slide rail slider assembly (14).

5. A thin-film sensor testing and calibration machine according to claim 1, characterized in that: The workbench of the frame (1) is provided with a mounting base (20) for mounting a standard sensor (2), which is mounted on the workbench by at least four first screws.

6. A thin-film sensor testing and calibration machine according to claim 5, characterized in that: The standard sensor (2) is a standard pressure sensor.

7. A thin-film sensor testing and calibration machine according to claim 1, characterized in that: The frame (1) is also equipped with a temperature controller (16) and an operation panel (17). The operation panel (17) is equipped with an emergency stop button (171), a reset button (172), a speed adjustment knob (173), an up button (174), a down button (175), and a standard sensor magnification display (176).

8. A thin-film sensor testing and calibration machine according to claim 5, characterized in that: The frame (1) is provided with a first safety light curtain (6) and a second safety light curtain (7) located on both sides of the fixture (3); a support column (8) is provided below the worktable for support at the bottom of the fixed seat (20).

9. A thin-film sensor testing and calibration machine according to any one of claims 1-8, characterized in that: The test module (4) includes a floating seat (41), a pressure head (42) disposed below the floating seat (41) and used to contact the product (A), and a spring (43) disposed above the floating seat (41). The floating seat (41) is provided with a positioning rod (44) for the spring (43) to be sleeved and installed, and the upper end of the spring (43) is provided with a limit stop (45).

10. A thin-film sensor testing and calibration machine according to claim 9, characterized in that: The pressure head (42) is mounted to the bottom of the floating seat (41) by at least two second screws (420).

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