Test tool for electric cylinder

Abstract

The utility model provides a testing tool for an electric cylinder, which comprises a substrate, a linear transmission part, a mounting table, a sliding table, a tension sensor and a magnetic powder brake, the electric cylinder is arranged on the mounting table, the linear transmission part is arranged on the substrate, the mounting table is arranged on the substrate, and the sliding table is arranged on the mounting table. The sliding table is installed on the base plate in a sliding mode and connected with the linear transmission piece, the first end of the tension sensor is connected with a piston rod of the electric cylinder, the second end of the tension sensor is fixedly connected with the sliding table, and the magnetic powder brake is connected with the linear transmission piece. The test tool has the advantages of high test precision, sensitive response and stable operation.

Description

Technical Field

[0001] This utility model relates to the field of electric cylinder testing technology, and in particular to a testing fixture for electric cylinders. Background Technology

[0002] Electric cylinders are modular products that integrate a servo motor and a lead screw. They are actuators that convert rotary motion into linear motion, achieving high-precision linear motion. Therefore, it is often necessary to test the performance of electric cylinders before use to ensure they meet standards. However, the current market lacks convenient and accurate testing devices.

[0003] Therefore, it is necessary to provide a testing fixture for electric cylinders to solve the above problems. Utility Model Content

[0004] The purpose of this invention is to provide a testing fixture for electric cylinders, which has the advantages of high testing accuracy, sensitive response, and stable operation.

[0005] To achieve the above objectives, the technical solution proposed by this utility model is as follows: A testing fixture for an electric cylinder includes a base plate, a linear transmission component, a mounting platform, a sliding platform, a tension sensor, and a magnetic powder brake. The electric cylinder is mounted on the mounting platform, the linear transmission component is mounted on the base plate, the mounting platform is mounted on the base plate, the sliding platform is slidably mounted on the base plate and connected to the linear transmission component, the first end of the tension sensor is connected to the piston rod of the electric cylinder, the second end of the tension sensor is fixedly connected to the sliding platform, and the magnetic powder brake is connected to the linear transmission component.

[0006] Preferably, the substrate is provided with a slide rail, the bottom of the sliding stage is provided with a slider, the mounting stage is mounted on the slide rail, and the slider is slidably mounted on the slide rail.

[0007] Preferably, a displacement sensor is provided on the sliding stage.

[0008] Preferably, the mounting platform is provided with a first connecting seat for mounting the electric cylinder.

[0009] Preferably, the sliding table is provided with a second connecting seat for mounting the tension sensor.

[0010] Preferably, it further includes a brake mounting base, which is mounted on a base plate, and the rotor shaft of the magnetic powder brake is rotatably mounted on the brake mounting base, and the linear transmission member is connected to the rotor shaft of the magnetic powder brake.

[0011] Compared with existing technologies, the advantages are that during testing, the input and output currents of the magnetic powder controller are set and the coil current is controlled. The braking torque is set. If the electric cylinder can push the sliding table to move on the linear transmission component, it indicates that the load capacity of the electric cylinder meets the standard. This testing fixture has the advantages of high testing accuracy, sensitive response, and stable operation.

[0012] Other features and advantages of this invention will be set forth in the following description, and in part will be apparent from the description, or may be learned by practice of the invention. The features and advantages of this invention may be realized and obtained by means of the elements and combinations specifically pointed out in the appended claims. Attached Figure Description

[0013] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0014] Figure 1 This is a perspective view of the testing fixture for electric cylinders provided by this utility model.

[0015] Figure 2 for Figure 1 The image shows a perspective view of another angle of the test fixture used for the electric cylinder.

[0016] Reference numerals: 1. Base plate; 11. Slide rail; 12. Brake mounting base; 2. Linear transmission component; 3. Mounting platform; 31. First connecting base; 4. Sliding platform; 41. Slider; 42. Displacement sensor; 43. Second connecting base; 5. Tension sensor; 6. Magnetic powder brake; 7. Electric cylinder. Detailed Implementation

[0017] To make the objectives, technical solutions, and beneficial effects of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described in this specification are merely for explaining the present utility model and are not intended to limit the present utility model.

[0018] It should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0019] It should also be noted that, unless otherwise explicitly specified and limited, terms such as "installation," "connection," "joining," "fixing," and "setting" 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 or an electrical 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. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

[0020] Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first," "second," or "third" may explicitly or implicitly include one or more of that feature. Additionally, "multiple" or "several" means two or more, unless otherwise explicitly specified.

[0021] Please see Figures 1 to 2 This utility model proposes a testing fixture for an electric cylinder, including a base plate 1, a linear transmission component 2, a mounting platform 3, a sliding platform 4, a tension sensor 5, and a magnetic powder brake 6.

[0022] The electric cylinder 7 under test is mounted on the mounting platform 3. The linear transmission component 2 is mounted on the base plate 1. The mounting platform 3 is fixedly mounted on the base plate 1. The sliding platform 4 is slidably mounted on the base plate 1 and connected to the linear transmission component 2. The first end of the tension sensor 5 is connected to the piston rod of the electric cylinder 7 under test. The second end of the tension sensor 5 is fixedly connected to the sliding platform 4. The magnetic powder brake 6 is connected to the linear transmission component 2.

[0023] It should be noted that in this embodiment, the linear transmission component 2 is a ball screw, the sliding table 4 is connected to the nut on the ball screw, and the ball screw is connected to the rotor of the magnetic powder brake 6.

[0024] Thus, when the tested electric cylinder 7 is started and its piston rod extends, since the tested electric cylinder 7 is mounted on the mounting platform 3 and the tension sensor 5 is connected to the piston rod of the tested electric cylinder 7, the piston rod of the electric cylinder 7 will begin to apply a force to the tension sensor 5. The tension sensor 5 detects the force applied by the piston rod of the electric cylinder 7 in real time. When the applied force exceeds the braking force of the magnetic powder brake 6 on the linear brake, since the tension sensor 5 is fixedly connected to the sliding platform 4, the piston rod of the electric cylinder 7 pushes the sliding platform 4 to slide on the base plate 1 through the tension sensor 5. At the same time, the sliding platform 4 drives the linear transmission component 2 to rotate, causing the rotor of the magnetic powder brake 6 to start rotating.

[0025] In a preferred embodiment, the substrate 1 is provided with a slide rail 11, the bottom of the sliding stage 4 is provided with a slider 41, the mounting platform 3 is fixedly mounted on the slide rail 11, and the slider 41 is slidably mounted on the slide rail 11. It should be noted that in this embodiment, there are two slide rails 11, distributed along both sides of the substrate 1. The mounting platform 3 is fixedly mounted on the two slide rails 11, and the slider 41 is slidably mounted on the two slide rails 11. This facilitates the smooth sliding of the sliding stage 4 on the slide rail 11 of the substrate 1 via the slider 41.

[0026] In a preferred embodiment, a displacement sensor 42 is provided on the sliding table 4. The displacement sensor 42 measures the moving distance of the electric cylinder 7 pushing the sliding table 4. The moving distance of the sliding table 4 can be used to determine the stroke and repeatability of the electric cylinder 7. It should be noted that in this embodiment, the displacement sensor 42 can be a slider-type electronic ruler 41.

[0027] In a preferred embodiment, the mounting platform 3 is provided with a first connecting seat 31 for fixing the electric cylinder 7, so as to fix the electric cylinder 7 in place. When the electric cylinder 7 needs to be fixedly installed, bolts can be used to pass through the first connecting seat 31 to fix the electric cylinder 7 on the mounting platform 3.

[0028] In a preferred embodiment, the sliding table 4 is provided with a second connecting seat 43 for fixing the tension sensor 5, so as to fix the tension sensor 5 in place. When the tension sensor 5 needs to be fixedly installed, it can be fixed to the second end of the tension sensor 5 by passing a bolt through the second connecting seat 43.

[0029] In a preferred embodiment, the test fixture for the electric cylinder further includes a brake mounting base 12, which is fixedly mounted on the base plate 1. The rotor shaft of the magnetic powder brake 6 is rotatably mounted on the brake mounting base 12, and the linear transmission member 2 is connected to the rotor shaft of the magnetic powder brake 6.

[0030] Working principle:

[0031] When the tested electric cylinder 7 is powered on and the piston rod extends, the piston rod of the electric cylinder 7 will begin to apply force to the tension sensor 5. The tension sensor 5 detects the force applied by the piston rod of the electric cylinder 7 in real time. When the applied force exceeds the braking force of the magnetic powder brake 6 on the linear brake, the piston rod of the electric cylinder 7 pushes the sliding table 4 to slide along the slide rail 11 on the base plate 1 through the tension sensor 5. At the same time, the sliding table 4 drives the linear transmission component 2 to rotate, so that the rotor of the magnetic powder brake 6 begins to rotate.

[0032] During testing, the input and output currents of the magnetic powder controller are set, the coil current is controlled, and the braking torque is set. If the electric cylinder 7 can push the sliding table 4 to move on the linear transmission component 2, it indicates that the load capacity of the electric cylinder 7 meets the standard. This testing fixture has the advantages of high testing accuracy, sensitive response, and stable operation, which can fill the gap in the market for such equipment and has broad market prospects.

[0033] It should be noted that the testing fixture for electric cylinders provided by this utility model can meet the testing requirements of 4000N and 5000N linear electric cylinders.

[0034] This invention is not limited to the description in the specification and embodiments. Therefore, other advantages and modifications can be readily realized by those skilled in the art. Thus, without departing from the spirit and scope of the general concept as defined by the claims and their equivalents, this invention is not limited to the specific details, representative devices and illustrated examples shown and described herein.

Claims

1. A testing fixture for an electric cylinder, characterized in that, The device includes a substrate (1), a linear transmission component (2), a mounting platform (3), a sliding platform (4), a tension sensor (5), and a magnetic powder brake (6). An electric cylinder (7) is mounted on the mounting platform (3). The linear transmission component (2) is mounted on the substrate (1). The mounting platform (3) is mounted on the substrate (1). The sliding platform (4) is slidably mounted on the substrate (1) and connected to the linear transmission component (2). The first end of the tension sensor (5) is connected to the piston rod of the electric cylinder (7). The second end of the tension sensor (5) is fixedly connected to the sliding platform (4). The magnetic powder brake (6) is connected to the linear transmission component (2).

2. The testing fixture for an electric cylinder as described in claim 1, characterized in that, The substrate (1) is provided with a slide rail (11), the bottom of the sliding stage (4) is provided with a slider (41), the mounting stage (3) is mounted on the slide rail (11), and the slider (41) is slidably mounted on the slide rail (11).

3. The testing fixture for an electric cylinder as described in claim 1, characterized in that, The sliding table (4) is equipped with a displacement sensor (42).

4. The testing fixture for an electric cylinder as described in claim 1, characterized in that, The mounting platform (3) is provided with a first connecting seat (31) for mounting the electric cylinder (7).

5. The testing fixture for an electric cylinder as described in claim 1, characterized in that, The sliding table (4) is provided with a second connecting seat (43) for mounting the tension sensor (5).

6. The testing fixture for an electric cylinder as described in claim 1, characterized in that, It also includes a brake mounting base (12), which is mounted on the base plate (1). The rotor shaft of the magnetic powder brake (6) is rotatably mounted on the brake mounting base (12), and the linear transmission member (2) is connected to the rotor shaft of the magnetic powder brake (6).

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