A jig suitable for pressure impact of force sensor

Abstract

The utility model discloses a kind of jigs suitable for force sensor pressure impact, related to jig technical field, including upper plate, the side of upper plate is equipped with bottom plate, a plurality of stand are provided between upper plate and bottom plate, the side wall of bottom plate is equipped with hydraulic cylinder, the output shaft of hydraulic cylinder is fixedly equipped with limit stop, the side wall of upper plate is sequentially provided with pressing block one and support block, force sensor is provided between pressing block one and support block;Protective plate is equipped between upper plate and bottom plate, explosion-proof window is embedded and installed in the middle of protective plate, the utility model discloses a kind of jigs suitable for force sensor pressure impact, by setting upper plate, bottom plate and stand, and pressing block one, pressing block two and support plate, compact jig structure can be formed, the structure of this force sensor is perfectly adapted, the hydraulic cylinder provided, so that the jig can convert hydraulic pressure into mechanical force, to directly act on force sensor, solve the problem that this force sensor cannot verify pressure impact performance.

Description

Technical Field

[0001] This utility model relates to the field of jig technology, and in particular to a jig suitable for pressure impact from a force sensor. Background Technology

[0002] When developing a new sensor, it is necessary to conduct pressure shock tests to evaluate the sensor's reliability and durability, as well as its performance under rapid and drastic pressure changes, thereby ensuring that it can operate normally under real-world or extreme conditions.

[0003] However, some fixtures are not compatible with traditional pressure impact fixtures when facing the testing requirements of force sensors with special structures. Traditional pressure impact media such as gas or liquid cannot be directly applied, and conventional pneumatic or hydraulic impact tests are prone to leakage of the medium. In addition, some fixtures do not have a protective structure between the operator and the fixture when performing pressure impact tests. For some substandard force sensors, there may be a risk of parts breaking off and flying, causing injury. Utility Model Content

[0004] The purpose of this invention is to provide a fixture suitable for pressure impact from force sensors, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a fixture suitable for pressure impact from a force sensor, comprising an upper plate, a bottom plate on one side of the upper plate, a plurality of columns between the upper plate and the bottom plate, a hydraulic cylinder mounted on one side wall of the bottom plate, a limiting block fixedly sleeved on the output shaft of the hydraulic cylinder, a pressure block and a support block arranged sequentially on one side wall of the upper plate, and a force sensor disposed between the pressure block and the support block;

[0006] A protective plate is provided between the upper plate and the bottom plate. An explosion-proof window is embedded in the middle of the protective plate. An inner groove is opened at one end of the upper plate and one end of the bottom plate. An electric telescopic rod is installed on one side of the inner wall of each of the two inner grooves. A pull rope is fixedly connected to the output end of the electric telescopic rod. An electric rod drive switch is embedded in the inner wall of the pressure block.

[0007] As a preferred embodiment of this utility model, multiple locking bolts are movably passed through the other side wall of the upper plate and the other side wall of the bottom plate, and one end of each locking bolt is threaded through both ends of the column.

[0008] Through the above technical solution, the locking bolts assemble the upper plate, the bottom plate, and the column together to form a compact and sturdy basic fixture structure.

[0009] As a preferred embodiment of this utility model, the surface of the hydraulic cylinder is provided with an oil inlet hole and an oil outlet hole in sequence.

[0010] The above technical solution can convert hydraulic pressure into mechanical force, which can then act directly on the force sensor.

[0011] As a preferred technical solution of this utility model, an arc-shaped plate is fixedly connected to the side wall of the pressure block, and the surface of the arc-shaped plate is provided with external threads.

[0012] As a preferred technical solution of this utility model, a second pressure block is provided on one side of the first pressure block, and an internal thread is provided on the inner wall of the second pressure block, and the second pressure block is threadedly connected to the first pressure block.

[0013] With the above technical solution, pressure block one can be quickly connected to pressure block two with the help of the arc plate, so that the force sensor can be assembled between pressure block one and pressure block two.

[0014] As a preferred embodiment of this utility model, the two corners of one side wall of the protective plate are fixedly connected with clamping plates, and the end of the pull rope away from the electric telescopic rod is fixedly connected to the clamping plates.

[0015] As a preferred embodiment of this utility model, the card plate is engaged with the inner groove.

[0016] With the above technical solution, when the protective plate moves to fit the upper plate and the bottom plate, the clamping plate is inserted into the inner groove.

[0017] As a preferred embodiment of this utility model, hinges are installed on the other two corners of one side wall of the protective plate, and the protective plate is movably connected to the upper plate and the bottom plate through the hinges.

[0018] With the above technical solution, the protective plate can be opened freely during non-testing periods, allowing the fixture to be fully exposed, which facilitates maintenance, installation and other operations.

[0019] Compared with the prior art, the beneficial effects of this utility model are:

[0020] 1. This utility model, by setting up an upper plate, a bottom plate, and a column, as well as pressure block one, pressure block two, and a support plate, can form a compact fixture structure that perfectly matches the structure of this force sensor. The hydraulic cylinder provided allows the fixture to convert hydraulic pressure into mechanical force, which is then directly applied to the force sensor. This solves the problem that this force sensor cannot verify the pressure impact performance. Since the force sensor is directly acted upon by mechanical force, the fixture does not require a sealing device when assembling the force sensor, thus avoiding the problem of medium leakage in conventional pneumatic or hydraulic impact tests.

[0021] 2. This utility model, by setting a hinged protective plate and an explosion-proof window, together with the electric telescopic rod and pull rope in the inner groove, can trigger the pull rope to lift and flip the explosion-proof window after the force sensor is positioned and installed. Before the pressure impact test, the explosion-proof window is triggered to form a protective shield between the fixture and the test personnel, so as to avoid the fragments of the structure flying and injuring people during the pressure impact test. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the structure of this utility model;

[0023] Figure 2 This is a plan view of the present invention;

[0024] Figure 3 This is a schematic diagram of the structure of the electric pole drive switch of this utility model;

[0025] Figure 4 This is a schematic diagram of the structure of the electric telescopic pole of this utility model.

[0026] In the diagram: 1. Upper plate; 2. Column; 3. Base plate; 4. Hydraulic cylinder; 5. Oil outlet; 6. Oil inlet; 7. Support block; 8. Pressure block one; 9. Arc plate; 10. Force sensor; 11. Pressure block two; 12. Inner groove; 13. Pull rope; 14. Clamping plate; 15. Protective plate; 16. Explosion-proof window; 17. Limit stop; 18. Electric rod drive switch; 19. Electric telescopic rod. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0028] Please see Figures 1 to 4 This utility model provides a technical solution for a fixture suitable for pressure impact from force sensors:

[0029] Example 1:

[0030] according to Figure 1 , Figure 2 As shown in the figure, a fixture suitable for force sensor pressure impact includes an upper plate 1, a base plate 3 on one side of the upper plate 1, multiple columns 2 between the upper plate 1 and the base plate 3, a hydraulic cylinder 4 installed on one side wall of the base plate 3, a limit stop 17 fixedly sleeved on the output shaft of the hydraulic cylinder 4, a pressure block 8 and a support block 7 are arranged sequentially on one side wall of the upper plate 1, and a force sensor 10 is arranged between the pressure block 8 and the support block 7.

[0031] Multiple locking bolts are movably passed through the other side wall of the upper plate 1 and the other side wall of the bottom plate 3. One end of the locking bolt is threaded through both ends of the column 2. The surface of the hydraulic cylinder 4 is sequentially provided with an oil inlet hole 6 and an oil outlet hole 5. An arc plate 9 is fixedly connected to the side wall of the pressure block 8. The surface of the arc plate 9 is provided with external threads. A pressure block 11 is provided on one side of the pressure block 8. The inner wall of the pressure block 11 is provided with internal threads. The pressure block 11 is threadedly connected to the pressure block 8.

[0032] In practical use, this utility model is a fixture suitable for pressure impact testing of force sensors. The inner wall of the pressure block 11 has an internal thread, which is threaded to the arc plate 9 with an external thread. In this way, the force sensor 10 can be fixed between the pressure block 8 and the pressure block 11 by rotation. The support block 7 supports and limits the pressure block 8 and the force sensor 10. At this time, the hydraulic cylinder 4 can be operated. The oil inlet 6 and oil outlet 5 of the hydraulic cylinder 4 are connected to an external hydraulic impact device to convert the hydraulic pressure into mechanical force. The output shaft of the hydraulic cylinder 4 acts on the force sensor 10 to perform a pressure impact test on the force sensor 10. During the impact test at the output end of the hydraulic cylinder 4, the limit stop 17 is used to limit the stroke range of the output shaft to ensure that the equipment operates within a safe and controllable range.

[0033] Example 2:

[0034] Based on Example 1, such as Figure 1 and Figure 3 , Figure 4 As shown, a protective plate 15 is provided between the upper plate 1 and the bottom plate 3. An explosion-proof window 16 is embedded in the middle of the protective plate 15. It is made of 10mm thick tempered glass and PVB laminate. An inner groove 12 is opened at one end of the upper plate 1 and one end of the bottom plate 3. An electric telescopic rod 19 is installed on one side of the inner wall of the two inner grooves 12. A pull rope 13 is fixedly connected to the output end of the electric telescopic rod 19. An electric rod drive switch 18 is embedded in the inner wall of the pressure block 8. The electric rod drive switch 18 is a push-button switch and is the "retraction control" button switch for the electric telescopic rod 19. A locking plate 14 is fixedly connected to both corners of one side wall of the protective plate 15. The end of the pull rope 13 away from the electric telescopic rod 19 is fixedly connected to the locking plate 14. The locking plate 14 is engaged with the inner groove 12. Hinges are installed on the other two corners of one side wall of the protective plate 15. The protective plate 15 is movably connected to the upper plate 1 and the bottom plate 3 through the hinges.

[0035] In practical use, this utility model is a fixture suitable for pressure impact testing of force sensors. When the force sensor 10 is installed between the pressure block 8 and the support block 7, the force sensor 10 will press against the electric rod drive switch 18 of the pressure block 8, thereby triggering the output end of the electric telescopic rod 19 to retract, which in turn drives the pull rope 13 to pull the clamping plate 14. As a result, the clamping plate 14 rises, causing the protective plate 15 to flip and finally fasten to one end of the upper plate 1 and the bottom plate 3. Thus, when the force sensor 10 is installed and about to be tested, the explosion-proof window 16 is triggered to flip and shield, providing protection during the pressure impact test. The explosion-proof window 16 forms a protective shield between the fixture and the test personnel, preventing fragments from flying and injuring people during the pressure impact test.

[0036] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a communication connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0037] In this invention, unless otherwise expressly specified and limited, the first feature "on" or "below" the second feature may be in direct contact with the first and second features, or indirect contact through an intermediate medium. In the description of this specification, references to terms such as "a solution," "some solutions," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that solution or example is included in at least one solution or example of this invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same solution or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more solutions or examples.

Claims

1. A fixture suitable for pressure impact from force sensors, comprising an upper plate (1), characterized in that: A bottom plate (3) is provided on one side of the upper plate (1). Multiple columns (2) are provided between the upper plate (1) and the bottom plate (3). A hydraulic cylinder (4) is installed on one side wall of the bottom plate (3). A limit stop (17) is fixedly sleeved on the output shaft of the hydraulic cylinder (4). A pressure block (8) and a support block (7) are arranged in sequence on one side wall of the upper plate (1). A force sensor (10) is provided between the pressure block (8) and the support block (7). A protective plate (15) is provided between the upper plate (1) and the bottom plate (3). An explosion-proof window (16) is embedded in the middle of the protective plate (15). An inner groove (12) is provided at one end of the upper plate (1) and one end of the bottom plate (3). An electric telescopic rod (19) is installed on one side of the inner wall of the two inner grooves (12). A pull rope (13) is fixedly connected to the output end of the electric telescopic rod (19). An electric rod drive switch (18) is embedded in the inner wall of the pressure block (8).

2. The fixture for force sensor pressure impact according to claim 1, characterized in that: Multiple locking bolts are movably passed through the other side wall of the upper plate (1) and the other side wall of the bottom plate (3), and one end of the locking bolt is threaded through both ends of the column (2).

3. The fixture for force sensor pressure impact according to claim 1, characterized in that: The surface of the hydraulic cylinder (4) is provided with an oil inlet (6) and an oil outlet (5) in sequence.

4. A fixture suitable for pressure impact from a force sensor according to claim 1, characterized in that: The side wall of the pressure block (8) is fixedly connected to an arc plate (9), and the surface of the arc plate (9) is provided with external threads.

5. A fixture suitable for force sensor pressure impact according to claim 4, characterized in that: One side of the pressure block 1 (8) is provided with pressure block 2 (11), and the inner wall of pressure block 2 (11) is provided with internal thread. Pressure block 2 (11) is threadedly connected to pressure block 1 (8).

6. A fixture suitable for pressure impact from a force sensor according to claim 1, characterized in that: The protective plate (15) has two corners of one side wall fixedly connected with a card plate (14), and the end of the pull rope (13) away from the electric telescopic rod (19) is fixedly connected to the card plate (14).

7. A fixture suitable for force sensor pressure impact according to claim 6, characterized in that: The card plate (14) is engaged with the inner groove (12).

8. A fixture suitable for pressure impact from a force sensor according to claim 1, characterized in that: Hinges are installed on the other two corners of one side wall of the protective plate (15), and the protective plate (15) is movably connected to the upper plate (1) and the bottom plate (3) through the hinges.

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