A measuring device for the travel of a limit switch

Abstract

The utility model belongs to test equipment manufacturing technical field especially, and is a kind of measuring device for the measurement of limit switch action stroke, including base, still including body and micrometer, the micrometer is fixedly connected with the outer wall of base by two screws, the outer wall of micrometer is equipped with two mounting holes for screw placement, the outer wall of base is equipped with two thread blind holes matched with screw, the outer wall of body is equipped with counterbore for installing base and micrometer, the outer wall of body is equipped with the thread hole of installing measured product.The utility model adopts split type structure, and the action stroke of limit switch can be accurately measured by high-precision standard measuring tool micrometer, and it is light and compact in structure, easy to install, and ensures the rigor of measurement.

Description

Technical Field

[0001] This utility model belongs to the field of test equipment manufacturing technology, and in particular relates to a measuring device for the travel of a limit switch. Background Technology

[0002] A limit switch is a mechanical or electronic device. From a mechanical perspective, it is mainly used to control the range of motion of mechanical equipment. For example, on an automated production line, when a component on a conveyor belt moves to a specific position, it triggers the limit switch. It acts like a "gatekeeper," changing its on / off state through internal mechanical structures, such as the collision of contact rods. From an electronic perspective, a limit switch converts mechanical displacement signals into electrical signals. When the detected object reaches the limited position, the switch actuates, and the electrical signal is transmitted to the control system. The control system can then use this signal to stop the motor, change the direction of movement, or perform other operations, thereby protecting the equipment and ensuring process accuracy.

[0003] In the servo system of underwater vehicles, the servo motor, as a key actuator, relies heavily on numerous internal sensor components. Limit switches are a commonly used type of switch control electrical device. Their working principle involves the contact of mechanical moving parts to actuate contacts, thereby controlling the connection or disconnection of the circuit. This allows for precise control and limit protection of the servo motor's steering stroke. However, these limit switches have extremely high requirements for their actuation range. Exceeding this range can lead to a series of serious problems. For example, it may cause servo motor malfunction, preventing the servo motor from functioning properly and affecting the underwater vehicle's handling performance; it may even cause the stroke to exceed the electrical limit, reaching the mechanical limit and causing mechanical jamming, damaging the equipment and endangering the safe operation of the underwater vehicle. Therefore, there is an urgent need for a device and method to accurately measure the actuation stroke of limit switches to ensure that the limit switches meet performance requirements and guarantee the normal operation of the servo motor and the underwater vehicle.

[0004] To address this problem, we propose a measuring device and method for measuring the travel of limit switches. Utility Model Content

[0005] The purpose of this invention is to address the above-mentioned problems by providing a measuring device for the travel of a limit switch.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a measuring device and method for measuring the travel of a limit switch, comprising a base, a body, and a micrometer;

[0007] The micrometer is fixedly connected to the outer wall of the base by two screws. The outer wall of the micrometer has two mounting holes for screw placement, and the outer wall of the base has two threaded blind holes that mate with the screws.

[0008] The outer wall of the main body has countersunk holes for easy installation of the base and micrometer, and the outer wall of the main body has threaded holes for installing the product to be tested.

[0009] In the aforementioned measuring device for the travel of a limit switch, the threaded structure on the base consists of two M4-7H threaded holes with a hole spacing of 70mm.

[0010] In the aforementioned measuring device for the travel of a limit switch, the corresponding structure connecting the body and the base consists of two Φ4×Φ8×4 countersunk holes on the front, with a hole spacing of 70mm.

[0011] In the aforementioned measuring device for the travel of a limit switch, the mounting part of the main body for mounting a micrometer consists of two Φ4×Φ8×5 countersunk holes on the back, with a hole spacing of 40mm.

[0012] In the aforementioned measuring device for the travel of a limit switch, the mounting part of the main body for mounting the limit switch under test is located at the center of the side and is a threaded hole M3-6H.

[0013] In the aforementioned measuring device for the travel of a limit switch, both the base and the body are made of H62 brass.

[0014] In the aforementioned measuring device for the travel of a limit switch, the micrometer has a measuring range of 0-25mm and an accuracy of 0.01mm.

[0015] Compared with existing technologies, the advantages of a measuring device for the travel of a limit switch are:

[0016] By using the set base, body, and micrometer, when it is necessary to measure the travel of the limit switch, first install the body and micrometer onto the base, and also install the limit switch to be measured accordingly. Then, slowly rotate the micrometer screw until its tip lightly touches the spring component roller of the limit switch. Next, carefully move the micrometer screw until the spring component just touches the switch contact, then stop rotating and record the micrometer scale value at this time as the initial measurement data. After the initial measurement is completed, slowly screw in the ratchet at the end of the micrometer to continuously apply pressure to the limit switch, while closely listening to the sound of the switch action. When a crisp "click" sound is heard from the limit switch, immediately record the micrometer scale value, which is the final measurement data. Finally, calculate the difference between the final measurement data and the initial measurement data. This limit switch travel measurement device adopts a split structure. The travel of the limit switch can be accurately measured using a high-precision standard measuring tool, the micrometer. The structure is lightweight, easy to install, and ensures the rigor of the measurement. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of a measuring device for the travel of a limit switch provided by this utility model.

[0018] In the picture: 1. Base; 2. Body; 3. Micrometer. Detailed Implementation

[0019] 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.

[0020] like Figure 1 As shown, a measuring device and method for measuring the travel of a limit switch includes a base 1, a body 2, and a micrometer 3.

[0021] The micrometer 3 is fixedly connected to the outer wall of the base 1 by two screws. The outer wall of the micrometer 3 has two mounting holes for screw placement, and the outer wall of the base 1 has two threaded blind holes that mate with the screws.

[0022] The outer wall of the main body 2 has countersunk holes for easy installation of the base 1 and the micrometer 3, and the outer wall of the main body 2 has threaded holes for installing the product to be tested.

[0023] The base 1 has two M4-7H threaded holes with a hole spacing of 70mm, which are used to securely connect with the body 2.

[0024] The corresponding structure connecting the main body 2 and the base 1 consists of two Φ4×Φ8×4 countersunk holes on the front, with a hole spacing of 70mm. The connection is achieved by M4X20 screws engaging with the threaded holes of the base 1.

[0025] The mounting points for the micrometer 3 on the main body 2 are two Φ4×Φ8×5 countersunk holes on the back, with a hole spacing of 40mm. The micrometer 3 is fixed with M3X10 screws to ensure the accuracy and stability of the installation of the micrometer 3.

[0026] The mounting part of the main body 2 for mounting the limit switch under test is located at the center of the side and is a threaded hole M3-6H. The limit switch under test is fixed by an M3X10 screw, which ensures that the limit switch under test is perpendicular to the sliding scale of the micrometer 3, thus ensuring measurement accuracy.

[0027] Both the base 1 and the body 2 are made of H62 brass. Brass has good mechanical properties, moderate strength and hardness, and good toughness. It provides structural support and impact resistance, has excellent processing performance, is easy to cut, and has strong plasticity, ensuring the precision and shape of the parts. It is also corrosion resistant, adaptable to various environments, extends the life of the device, and ensures the life and reliability of the device.

[0028] The micrometer 3 has a measuring range of 0-25mm and an accuracy of 0.01mm. It is connected to the main body 2 through a specific connector and is used to measure the travel of limit switches. It can accurately measure minute changes in the travel of limit switches, and is easy to operate, highly stable, and can perform repeated and accurate measurements.

[0029] The limit switch under test includes a micro switch, a spring component, and a switch contact. When the limit switch under test is working, an external force causes the spring component to deform, which drives the roller to touch the micro switch, changing the on / off state of its internal circuit. The switch contact then actuates, thereby achieving control and protection of the relevant equipment.

[0030] The operating principle of this utility model is described as follows: When it is necessary to measure the travel of a limit switch, firstly, fix the micrometer 3 to the body 2 with corresponding screws to ensure a tight connection between the micrometer 3 and the body 2. Then, install the body 2 onto the base 1 and use the screws provided with the limit switch to fix it to the mounting position on the body 2. Carefully adjust the position of the limit switch to ensure that it is perpendicular to the sliding scale of the micrometer 3, completing the preparation work before measurement. Next, slowly rotate the micrometer screw of the micrometer 3 until its tip lightly touches the spring component roller of the limit switch to be measured. Then, carefully move the micrometer screw until the spring component just touches the switch contact, stop rotating and record the result. At this point, the scale value of micrometer 3 is used as the initial measurement data. After the initial measurement is completed, slowly screw in the ratchet at the end of micrometer 3 to continuously apply pressure to the limit switch being measured. At the same time, pay close attention to the sound of the switch action. When a crisp "click" sound is heard from the limit switch being measured, immediately record the scale value of micrometer 3. This is the final measurement data. Finally, calculate the difference between the final measurement data and the initial measurement data. This difference is the travel distance of the limit switch being measured, thus completing the entire measurement process. This device adopts a split structure. The travel distance of the limit switch can be accurately measured using a high-precision standard measuring tool, micrometer 3. The structure is lightweight, easy to install, and ensures the rigor of the measurement.

[0031] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A measuring device for the travel of a limit switch, comprising a base (1), characterized in that, It also includes the body (2) and the micrometer (3); The micrometer (3) is fixedly connected to the outer wall of the base (1) by two screws. The outer wall of the micrometer (3) has two mounting holes for screw placement, and the outer wall of the base (1) has two threaded blind holes that cooperate with the screws. The outer wall of the body (2) is provided with countersunk holes for easy installation of the base (1) and micrometer (3), and the outer wall of the body (2) is provided with threaded holes for installing the product to be tested.

2. The measuring device for the travel of a limit switch according to claim 1, characterized in that, The threaded structure on the base (1) consists of two M4-7H threaded holes with a hole spacing of 70mm.

3. The measuring device for the travel of a limit switch according to claim 2, characterized in that, The corresponding structure connecting the body (2) and the base (1) consists of two Φ4×Φ8×4 countersunk holes on the front, with a hole spacing of 70mm.

4. The measuring device for the travel of a limit switch according to claim 3, characterized in that, The mounting part of the body (2) for mounting the micrometer (3) is two Φ4×Φ8×5 countersunk holes on the back, with a hole spacing of 40mm.

5. A measuring device for the travel of a limit switch according to claim 4, characterized in that, The mounting part of the main body (2) for installing the limit switch under test is located at the center of the side and is a threaded hole M3-6H.

6. The measuring device for the travel of a limit switch according to claim 5, characterized in that, The base (1) and the body (2) are both made of brass H62.

7. A measuring device for the travel of a limit switch according to claim 6, characterized in that, The micrometer (3) has a measuring range of 0-25mm and an accuracy of 0.01mm.

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