A pressure sensor test fixture with early warning function

Abstract

The utility model relates to the technical field of test fixtures, and in particular to a pressure sensor test fixture with an early warning function. Its technical solution includes a fixture plate body, and also includes: two slide grooves symmetrically opened on the top of the fixture plate body, sliders are slidably installed in the two slide grooves, a connecting plate is fixedly connected between the two sliders, and an adjustable clamping plate is fixedly installed on the top of the connecting plate; a moving device, the moving device is arranged in the slide groove to drive the adjustable clamping plate to move and clamp; a detection device, the detection device is arranged on one side of the fixture plate body to detect whether the pressure sensor is clamped. The utility model realizes timely automatic alarm reminder when the pressure sensor fails to be clamped, avoids the operator using the pressure sensor that fails to be clamped for testing, and improves work efficiency.

Description

Technical Field

[0001] The utility model relates to the technical field of test fixtures, in particular to a pressure sensor test fixture with an early warning function. Background Art

[0002] A pressure-sensitive electronic component is installed inside the pressure sensor, which transmits the pressure it bears to the client in the form of an electrical signal. The pressure sensor needs to be pressure tested before leaving the factory, which requires the use of a test fixture to limit the position of the pressure sensor.

[0003] Since there are many types of pressure sensors and the shapes of different types of pressure sensors are also different, most test fixtures use an adjustable rotating clamping plate to deal with pressure sensors of different shapes to ensure that the fixture and the pressure sensor are tightly clamped. However, judging whether the fixture is tightly clamped by human observation has certain limitations. Often, a situation that is judged to be clamped may actually still be loose, which ultimately leads to uncertain measurement results and the need to repeat the entire test steps, resulting in reduced work efficiency. Therefore, the present application proposes a pressure sensor test fixture with an early warning function. Utility Model Content

[0004] The purpose of the utility model is to propose a pressure sensor test fixture with an early warning function to address the problems in the background technology that manual observation to judge whether a clamp is fitted and clamped has certain limitations, the measured results are uncertain, and the clamping plate needs to be debugged multiple times, resulting in reduced work efficiency.

[0005] The technical solution of the utility model: a pressure sensor test fixture with an early warning function, including a fixture plate body, and also including:

[0006] Two slide grooves are symmetrically arranged on the top of the fixture plate body, and sliders are slidably installed in the two slide grooves. A connecting plate is fixedly connected between the two sliders, and an adjustable clamping plate is fixedly installed on the top of the connecting plate;

[0007] A moving device, the moving device is arranged in the slide slot and is used to drive the adjustable clamping plate to move and clamp;

[0008] A detection device, the detection device is arranged on one side of the clamp plate body and is used to detect whether the pressure sensor is clamped;

[0009] The early warning device is arranged on the other side of the clamp plate body and is used for automatically alarming when detecting that the pressure sensor is not clamped.

[0010] Optionally, the moving device includes a screw rod rotatably installed in a slide groove and threadedly connected to the slider, one end of the screw rod passes through the outer wall of the clamp plate, one end of one screw rod is fixedly connected to a driving wheel, and one end of the other screw rod is fixedly connected to a driven wheel, the driven wheel and the driving wheel are connected by a belt drive, and the driving wheel is fixedly connected to the output shaft of the driving motor.

[0011] Optionally, a fixing frame is fixedly installed on the top of the connecting plate and located on one side of the adjustable clamping plate, an electric telescopic rod is arranged on the fixing frame, and a positioning block is connected to the bottom end of the electric telescopic rod.

[0012] Optionally, the detection device includes an L-shaped fixed plate fixedly mounted on one side of the clamp plate body, an electric slide rail fixedly mounted on the L-shaped fixed plate, a moving block slidably mounted in the electric slide rail, a fixed plate fixedly connected to the top of the moving block, a support rod fixedly mounted on the side of the fixed plate close to the clamp plate body, a cross plate fixedly connected to the support rod, push blocks fixedly mounted on both sides of the cross plate, and rubber pads are provided on the push blocks.

[0013] Optionally, the early warning device includes a telescopic plate slidably mounted on the inner wall of the other side of the clamp plate body, a mounting seat is fixedly mounted on the side of the inner wall of the telescopic plate away from the clamp plate body, a movable rod is slidably mounted on the mounting seat, a rectangular frame is fixedly mounted on one side of the mounting seat, a switch is provided on the inner wall of the rectangular frame, the switch is connected to an alarm, and the alarm is fixedly mounted on the outer wall of the rectangular frame.

[0014] Optionally, a clamping block is slidably mounted on the top of the mounting seat, and a clamping groove matching the clamping block is provided at the connection between the mounting seat and the movable rod.

[0015] Compared with the prior art, the utility model has the following beneficial technical effects:

[0016] 1. By setting an L-shaped fixed plate, an electric slide rail, a moving block, a support rod, a pushing block, a telescopic plate and a movable rod, the moving block can be moved by using the electric slide rail, and the pushing block can further push the pressure sensor for testing. Once the clamping is not tight enough, the pressure sensor will touch the movable rod, causing the movable rod to slide and hit the switch, causing the alarm to be warned, so that the operator can know the clamping status of the fixture in time, avoiding the use of a pressure sensor that has not been clamped to test, and improving work efficiency.

[0017] 2. By setting up a fixed frame, a slider, an electric telescopic rod and a positioning block, the operator can use the extension of the electric telescopic rod to drive the positioning block to move downward when debugging the fixture, so that the positioning block can complete the positioning of the pressure sensor and prevent the pressure sensor from being offset during debugging.

[0018] The utility model realizes timely automatic alarm reminder when the pressure sensor fails to be clamped, avoids the operator to use the pressure sensor that fails to be clamped for testing, and improves the work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 A structural schematic diagram of an embodiment of the utility model is given;

[0020] Figure 2 It is a schematic diagram of the connection structure of the positioning block;

[0021] Figure 3 It is a schematic diagram of the support rod connection structure;

[0022] Figure 4 It is a schematic diagram of the movable rod connection structure.

[0023] Figure numerals: 1. fixture plate; 2. slide groove; 3. slider; 4. connecting plate; 5. adjustable clamping plate; 6. screw rod; 7. driving wheel; 8. driven wheel; 9. driving motor; 10. fixing frame; 11. electric telescopic rod; 12. positioning block; 13. L-shaped fixing plate; 14. electric slide rail; 15. moving block; 16. fixing plate; 17. supporting rod; 18. horizontal plate; 19. pushing block; 20. rubber pad; 21. telescopic plate; 22. mounting seat; 23. movable rod; 24. card block; 25. rectangular frame; 26. switch; 27. alarm. DETAILED DESCRIPTION

[0024] The technical solution of the present utility model will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present utility model, rather than all of the embodiments.

[0025] The components of the embodiments of the present invention generally described and shown in the drawings herein can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the present invention.

[0026] Based on the embodiments of the present utility model, all other embodiments obtained by ordinary technicians in the field without making any creative work shall fall within the scope of protection of the present utility model.

[0027] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0028] It should be noted that the terms "include", "comprises" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0029] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0030] Example

[0031] like Figure 1 and Figure 2 As shown, the utility model proposes a pressure sensor test fixture with an early warning function, including a fixture plate body 1, and also includes two slide grooves 2 symmetrically opened on the top of the fixture plate body 1, and sliders 3 are slidably installed in the two slide grooves 2, and two sliders 3 are symmetrically installed in each slide groove 2, and a connecting plate 4 is fixedly connected between the two sliders 3, and the connecting plate 4 is connected to the two sliders 3 in the adjacent slide grooves 2;

[0032] It is worth mentioning that an adjustable clamping plate 5 is fixedly installed on the top of the connecting plate 4, and the adjustable clamping plate 5 is composed of a clamping plate and an auxiliary clamping plate, wherein the auxiliary clamping plate is rotatably installed on both sides of the clamping plate, and the rotation shaft is driven by setting a micro motor or the like. For details, the auxiliary clamping parts in the patent document with publication number CN 220525208 U can be seen, and no further details will be given here.

[0033] Furthermore, a fixing frame 10 is fixedly installed on the top of the connecting plate 4 on one side of the adjustable clamping plate 5. The fixing frame 10 is L-shaped, and the long end is toward the center of the fixture plate body 1. An electric telescopic rod 11 is arranged on the fixing frame 10. A positioning block 12 is connected to the bottom end of the electric telescopic rod 11. The extension of the electric telescopic rod 11 can drive the positioning block 12 to move downward to fix the pressure sensor for test, so as to prevent the pressure sensor from shifting during the debugging process.

[0034] like Figure 1 As shown, the device also includes a moving device, which is arranged in the slide groove 2 and is used to drive the adjustable clamping plate 5 to move and clamp. The moving device includes a screw rod 6 rotatably installed in the slide groove 2 and threadedly connected to the slider 3. The two sliders 3 installed in the same slide groove 2 are respectively provided with internal threads opposite to the screw rod 6. That is, under the rotation of the screw rod 6, the two sliders 3 can move toward each other, driving the adjustable clamping plate 5 to clamp and fix the pressure sensor for testing.

[0035] Among them, one end of the screw rod 6 passes through the outer wall of the clamp plate body 1, one end of one screw rod 6 is fixedly connected to a driving wheel 7, and one end of the other screw rod 6 is fixedly connected to a driven wheel 8. The driven wheel 8 and the driving wheel 7 are connected by a belt transmission. Through the transmission of the belt, the driving wheel 7 and the driven wheel 8 can rotate together. The driving wheel 7 is fixedly connected to the output shaft of the driving motor 9;

[0036] The driving motor 9 is started to rotate the driving wheel 7, and the driven wheel 8 is also rotated under the transmission of the belt, so that the two screw rods 6 rotate synchronously, and at the same time, the adjustable clamping plate 5 moves together to clamp the pressure sensor.

[0037] like Figure 1 and Figure 3 As shown, the device also includes a detection device, which is arranged on one side of the clamp plate body 1 and is used to detect whether the pressure sensor is clamped. The detection device includes an L-shaped fixed plate 13 fixedly installed on one side of the clamp plate body 1, and an electric slide rail 14 is fixedly installed on the L-shaped fixed plate 13. A moving block 15 is slidably installed in the electric slide rail 14, and the moving block 15 can be controlled to move forward and backward by starting the electric slide rail 14;

[0038] Furthermore, a fixed plate 16 is fixedly connected to the top of the moving block 15, a support rod 17 is fixedly installed on the side of the fixed plate 16 close to the clamp plate body 1, a cross plate 18 is fixedly connected to the support rod 17, and pushing blocks 19 are fixedly installed on both sides of the cross plate 18. The movement of the moving block 15 drives the pushing block 19 to push the clamped pressure sensor. A rubber pad 20 is arranged on the pushing block 19 to prevent friction damage to the pressure sensor when the pressure sensor is pushed.

[0039] like Figure 1 and Figure 4 As shown, the device also includes an early warning device, which is arranged on the other side of the clamp plate body 1 for detecting an automatic alarm reminder when the pressure sensor is not clamped, and the early warning device includes a telescopic plate 21 slidably mounted on the inner wall of the other side of the clamp plate body 1, and the other side of the clamp plate body 1 is provided with an inner groove for the telescopic plate 21 to move a sufficient length, and a mounting seat 22 is fixedly mounted on the side of the telescopic plate 21 away from the inner wall of the clamp plate body 1, and a movable rod 23 is slidably mounted on the mounting seat 22, and the movable rod 23 can slide between the inner walls of the mounting seat 22 under the action of an external force;

[0040] Furthermore, a rectangular frame 25 is fixedly mounted on one side of the mounting base 22, a switch 26 is provided on the inner wall of the rectangular frame 25, the switch 26 is connected to an alarm 27, and the alarm 27 is fixedly mounted on the outer wall of the rectangular frame 25. The movable rod 23 slides and touches the switch 26 under the condition of external force, so that the alarm 27 issues an alarm warning;

[0041] It is worth mentioning that a block 24 is slidably installed on the top of the mounting seat 22, and a slot matching the block 24 is provided at the connection between the mounting seat 22 and the movable rod 23. By inserting the block 24 into the slot, the movable rod 23 can be fixed, and other external force interference can be eliminated when not working.

[0042] Working principle: the pressure sensor to be tested is placed on the fixture plate 1, and the driving motor 9 is started to make the active wheel 7 drive the driven wheel 8 to rotate, so that the two screw rods 6 rotate synchronously, so that the slider 3 can drive the adjustable clamping plate 5 to complete the fixation of the two ends of the pressure sensor, and the electric slide rail 14 is used to drive the movement of the moving block 15, so that the fixed plate 16 drives the support rod 17 to move toward the direction of the pressure sensor, so that the support rod 17 pushes the pushing block 19 to move and contact the pressure sensor. When the clamping of the pressure sensor is not stable enough, the pressure sensor will touch the movable rod 23, so that the movable rod 23 slides into the rectangular frame 25, so that the movable rod 23 touches the switch 26, and successfully makes the alarm 27 sound an alarm warning, so that the operator knows in time that the fixture fails to clamp the pressure sensor and debug. During debugging, the extension of the electric telescopic rod 11 can be used to drive the positioning block 12 to position the two ends of the pressure sensor, so as to prevent the pressure sensor from being offset during debugging, thereby improving work efficiency.

[0043] The above-mentioned specific embodiments are only several optional embodiments of the present invention. Based on the technical solution of the present invention and the relevant inspiration of the above-mentioned embodiments, those skilled in the art can make various alternative improvements and combinations to the above-mentioned specific embodiments.

Claims

1. A pressure sensor test fixture with an early warning function, comprising a fixture plate (1), characterized in that: Also includes: Two slide grooves (2) are symmetrically arranged on the top of the clamp plate body (1), and sliders (3) are slidably installed in the two slide grooves (2). A connecting plate (4) is fixedly connected between the two sliders (3), and an adjustable clamping plate (5) is fixedly installed on the top of the connecting plate (4); A moving device, the moving device being arranged in the slide groove (2) and used for driving the adjustable clamping plate (5) to move and clamp; A detection device, the detection device being arranged on one side of the clamp plate body (1) and used for detecting whether the pressure sensor is clamped; An early warning device is arranged on the other side of the clamp plate body (1) and is used for automatically alarming when detecting that the pressure sensor is not clamped.

2. A pressure sensor test fixture with early warning function according to claim 1, characterized in that: The moving device comprises a screw rod (6) rotatably installed in the slide groove (2) and threadedly connected to the slider (3), one end of the screw rod (6) passes through the outer wall of the clamp plate body (1), one end of one of the screw rods (6) is fixedly connected to a driving wheel (7), and one end of the other screw rod (6) is fixedly connected to a driven wheel (8), the driven wheel (8) and the driving wheel (7) are connected by a belt drive, and the driving wheel (7) is fixedly connected to the output shaft of the driving motor (9).

3. A pressure sensor test fixture with early warning function according to claim 1, characterized in that: A fixing frame (10) is fixedly mounted on the top of the connecting plate (4) and located on one side of the adjustable clamping plate (5); an electric telescopic rod (11) is arranged on the fixing frame (10); and a positioning block (12) is connected to the bottom end of the electric telescopic rod (11).

4. A pressure sensor test fixture with early warning function according to claim 1, characterized in that: The detection device comprises an L-shaped fixed plate (13) fixedly mounted on one side of a fixture plate body (1), an electric slide rail (14) fixedly mounted on the L-shaped fixed plate (13), a moving block (15) slidably mounted inside the electric slide rail (14), a fixed plate (16) fixedly connected to the top of the moving block (15), a support rod (17) fixedly mounted on the side of the fixed plate (16) close to the fixture plate body (1), a cross plate (18) fixedly connected to the support rod (17), push blocks (19) fixedly mounted on both sides of the cross plate (18), and rubber pads (20) are provided on the push blocks (19).

5. The pressure sensor test fixture with early warning function according to claim 1, characterized in that: The early warning device comprises a telescopic plate (21) slidably mounted on the inner wall of the other side of the clamp plate body (1); a mounting seat (22) is fixedly mounted on the inner wall side of the telescopic plate (21) away from the clamp plate body (1); a movable rod (23) is slidably mounted on the mounting seat (22); a rectangular frame (25) is fixedly mounted on one side of the mounting seat (22); a switch (26) is provided on the inner wall of the rectangular frame (25); the switch (26) is connected to an alarm (27); and the alarm (27) is fixedly mounted on the outer wall of the rectangular frame (25).

6. A pressure sensor test fixture with early warning function according to claim 5, characterized in that: A clamping block (24) is slidably mounted on the top of the mounting seat (22), and a clamping groove matching the clamping block (24) is provided at the connection between the mounting seat (22) and the movable rod (23).

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