Force transducer with buffer structure

Abstract

The utility model discloses a force transducer with a buffer structure, which comprises a fixing plate, two fixing blocks are fixedly mounted on the left side and the right side of the fixing plate respectively, a mounting hole is formed in the upper end of the fixing plate, a mounting seat is arranged in the mounting hole, and a force transducer main body is fixedly mounted at the upper end of the mounting seat; the fixing plate is detachably connected with a protective shell through two symmetrically-arranged mounting mechanisms, and a buffering mechanism used for buffering the carrier is arranged at the upper end of the protective shell. According to the utility model, the force transducer can be protected through the protective shell, the sensor is more convenient to maintain and replace due to the detachability of the protective shell, and when the sensor needs to be maintained or replaced, the protective shell can be easily taken down by only pressing the limiting plate without a complicated disassembly process.

Description

Technical Field

[0001] The utility model relates to the technical field of force sensors, in particular to a force sensor with a buffer structure. Background Art

[0002] A force sensor is a device that converts mechanical signals into electrical signals and is widely used in industrial automation, robotics, aerospace, and other fields. It measures the force or pressure applied to an object and converts these physical quantities into processable electrical signals, thereby enabling force monitoring and control. The working principle of a force sensor is based on physical laws, such as the piezoelectric effect or the strain gauge effect. When the sensor is subjected to an external force, the sensitive element inside it will deform, thereby changing its electrical characteristics. After being processed by the circuit, it outputs an electrical signal proportional to the force.

[0003] Traditional force sensors are widely used in many fields, but they still have some limitations. For example, when subjected to large impact forces or vibrations, the sensitive components inside the sensor may be damaged, resulting in reduced measurement accuracy or sensor failure. Utility Model Content

[0004] The purpose of the present utility model is to solve the shortcomings existing in the prior art and to propose a force sensor with a buffer structure, which can protect the force sensor through a protective shell. At the same time, the detachability of the protective shell makes the maintenance and replacement of the sensor easier. When the sensor needs to be repaired or replaced, the protective shell can be easily removed by pressing the limiting plate without the need for a complicated disassembly process.

[0005] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0006] A force sensor with a buffer structure includes a fixing plate, two fixing blocks are fixedly mounted on the left and right sides of the fixing plate, a mounting hole is formed at the upper end of the fixing plate, a mounting seat is provided inside the mounting hole, and a force sensor body is fixedly mounted on the upper end of the mounting seat;

[0007] The fixing plate is detachably connected to the protective shell via two symmetrically arranged mounting mechanisms, and a buffer mechanism for buffering the carrier is provided at the upper end of the protective shell.

[0008] Preferably, the mounting seat consists of a circular disc and two symmetrically arranged rectangular blocks.

[0009] Preferably, the mounting mechanism includes a plug-in plate fixedly mounted on the upper end of the fixed plate, a plug-in slot adapted to the plug-in plate is provided at the lower end of the protective shell, a receiving slot is provided on the inner side of the plug-in slot, a limiting plate is slidably connected to the inside of the receiving slot, and the limiting plate and the receiving slot are elastically connected by two reset springs.

[0010] Preferably, the lower end of the limiting plate is a hook-shaped structure, and the lower end surface of the hook-shaped structure is an inclined surface.

[0011] Preferably, a plurality of positioning rods are fixedly mounted on the upper end of the fixing plate, and a plurality of positioning holes adapted to the positioning rods are opened on the lower end of the protective shell.

[0012] Preferably, the buffer mechanism includes a plurality of buffer cylinders equidistantly arranged at the upper end of the protective shell, a buffer rod is slidably connected to the interior of the buffer cylinder, the buffer rod and the buffer cylinder are elastically connected by a buffer spring, and a buffer seat is fixedly installed on the upper ends of the plurality of buffer rods.

[0013] The utility model has the following beneficial effects:

[0014] 1. The design of the mounting mechanism allows the protective case to be easily and securely mounted on the fixing plate. The inclined design of the plug-in plate and the hook-shaped structure of the limiting plate facilitate quick installation, while the return spring provides a stable locking force to ensure that the protective case will not fall off accidentally.

[0015] 2. By designing the positioning rod and positioning hole, the cooperation between the positioning rod and the positioning hole further enhances the stability of the connection, making the entire sensor structure more stable and reliable;

[0016] 3. The design of the buffer mechanism effectively absorbs the impact and vibration generated by the carrier on the sensor. This buffering effect can protect the load cell body from damage and extend its service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a structural diagram of a force sensor with a buffer structure proposed by the utility model;

[0018] Figure 2 This is a front cross-sectional view of a force sensor with a buffer structure proposed by the present utility model;

[0019] Figure 3 This is a left side cross-sectional view of a force sensor with a buffer structure proposed in the utility model.

[0020] In the figure: 1 fixing plate, 2 fixing block, 3 positioning rod, 4 plug-in plate, 5 buffer cylinder, 6 buffer seat, 7 buffer rod, 8 force sensor body, 9 limiting plate, 10 protective shell, 11 mounting seat, 12 return spring, 13 plug-in slot, 14 storage slot, 15 buffer spring. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0022] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the present invention.

[0023] Reference Figure 1-Figure 3 A force sensor with a buffer structure includes a fixed plate 1, two fixed blocks 2 are fixedly installed on the left and right sides of the fixed plate 1, and the fixed plate 1 serves as the base of the entire sensor. The fixed blocks 2 can be stably installed in a desired position. A mounting hole is opened at the upper end of the fixed plate 1, and a mounting seat 11 is provided inside the mounting hole. The mounting seat 11 consists of a circular disc and two symmetrically arranged rectangular blocks. The upper end of the mounting seat 11 is fixedly mounted with a force sensor body 8;

[0024] The fixing plate 1 is detachably connected to the protective shell 10 through two symmetrically arranged mounting mechanisms. The mounting mechanism includes a plug-in plate 4 fixedly mounted on the upper end of the fixing plate 1. The side wall of the plug-in plate 4 is provided with a limiting groove adapted to the limiting plate 9. The lower end of the protective shell 10 is provided with a plug-in groove 13 adapted to the plug-in plate 4. The inner side of the plug-in groove 13 is provided with a receiving groove 14. The interior of the receiving groove 14 is slidably connected to the limiting plate 9. The lower end of the limiting plate 9 is a hook-shaped structure, and the lower end surface of the hook-shaped structure is an inclined surface, which facilitates the plug-in plate 4 to be fully inserted into the plug-in groove 13. The limiting plate 9 and the receiving groove 14 are elastically connected by two return springs 12.

[0025] A plurality of positioning rods 3 are fixedly mounted on the upper end of the fixing plate 1, and a plurality of positioning holes adapted to the positioning rods 3 are opened at the lower end of the protective shell 10. The protective shell 10 can be quickly fixed by the cooperation between the positioning rods 3 and the positioning holes;

[0026] A buffer mechanism for carrier buffering is provided at the upper end of the protective shell 10. The buffer mechanism includes a plurality of buffer tubes 5 arranged at equal intervals at the upper end of the protective shell 10. A buffer rod 7 is slidably connected to the interior of the buffer tube 5. The buffer rod 7 and the buffer tube 5 are elastically connected by a buffer spring 15. A buffer seat 6 is fixedly installed on the upper ends of the plurality of buffer rods 7.

[0027] Working principle:

[0028] When the protective shell 10 needs to be installed on the fixed plate 1, first insert the positioning rod 3 at the upper end of the fixed plate 1 into the positioning hole at the lower end of the protective shell 10, so as to achieve the initial positioning of the protective shell 10 and increase the stability of the connection. At the same time, align the plug-in board 4 with the plug-in slot 13 and insert it. Since the lower end of the limiting plate 9 is a hook-shaped structure and its lower end face is an inclined surface, the plug-in board 4 can easily push the limiting plate 9 to slide inside the receiving slot 14 and compress the reset spring 12. When the plug-in board 4 is fully inserted into the plug-in slot 13, the elastic force of the reset spring 12 will restore the limiting plate 9 to its original position, and its hook-shaped structure will hook the plug-in board 4, thereby preventing the protective shell 10 from falling off. When disassembling, it is only necessary to press the limiting plate 9 so that the limiting plate 9 is received in the receiving slot 14, thereby releasing the restriction on the plug-in board 4 and achieving the purpose of disassembly.

[0029] When the object being measured is placed on the buffer seat 6, its weight is transferred to the buffer spring 15 inside the buffer cylinder 5 through the buffer rod 7. Because the buffer spring 15 has a certain degree of elasticity, it can absorb and disperse the impact force or vibration generated by the carrier, thereby protecting the load cell body 8 from damage or interference. This buffer mechanism can effectively improve the measurement accuracy and service life of the sensor.

[0030] When the carrier applies pressure to the buffer seat 6, this pressure is transmitted to the load cell body 8 via the buffer rod 7, buffer spring 15, and buffer cylinder 5. A sensitive element within the load cell body 8 senses this pressure and converts it into an electrical signal. By reading this electrical signal, we can understand the magnitude and direction of the force applied by the carrier on the sensor.

[0031] The above are only preferred specific implementation methods of the present invention, but the protection scope of the present invention is not limited to them. Any technician familiar with the technical field can make equivalent replacements or changes based on the technical solution and utility model concept of the present invention within the technical scope disclosed by the present invention, and they should be covered by the protection scope of the present invention.

Claims

1. A force sensor with a buffer structure, characterized in that: The device comprises a fixing plate (1), two fixing blocks (2) are fixedly mounted on both the left and right sides of the fixing plate (1), a mounting hole is provided at the upper end of the fixing plate (1), a mounting seat (11) is provided inside the mounting hole, and a force sensor body (8) is fixedly mounted on the upper end of the mounting seat (11); The fixing plate (1) is detachably connected to a protective shell (10) via two symmetrically arranged mounting mechanisms, and a buffer mechanism for carrier buffering is provided at the upper end of the protective shell (10).

2. The force sensor with a buffer structure according to claim 1, characterized in that: The mounting seat (11) consists of a circular disc and two symmetrically arranged rectangular blocks.

3. The force sensor with a buffer structure according to claim 1, characterized in that: The mounting mechanism comprises a plug-in plate (4) fixedly mounted on the upper end of a fixed plate (1); a plug-in slot (13) adapted to the plug-in plate (4) is provided at the lower end of the protective shell (10); a receiving slot (14) is provided on the inner side of the plug-in slot (13); a limiting plate (9) is slidably connected to the interior of the receiving slot (14); and the limiting plate (9) and the receiving slot (14) are elastically connected via two return springs (12).

4. The force sensor with a buffer structure according to claim 3, characterized in that: The lower end of the limiting plate (9) is a hook-shaped structure, and the lower end surface of the hook-shaped structure is an inclined surface.

5. The force sensor with a buffer structure according to claim 1, characterized in that: A plurality of positioning rods (3) are fixedly mounted on the upper end of the fixing plate (1), and a plurality of positioning holes adapted to the positioning rods (3) are provided on the lower end of the protective shell (10).

6. The force sensor with a buffer structure according to claim 1, characterized in that: The buffer mechanism comprises a plurality of buffer cylinders (5) arranged at equal intervals on the upper end of a protective shell (10); a buffer rod (7) is slidably connected to the interior of the buffer cylinder (5); the buffer rod (7) and the buffer cylinder (5) are elastically connected via a buffer spring (15); and a buffer seat (6) is fixedly mounted on the upper ends of the plurality of buffer rods (7).

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