Multifunctional electric push rod detection device

Abstract

The utility model relates to the technical field of electric push rods, in particular to a multifunctional electric push rod detection device which comprises a box body. The moving frame is arranged in the box body in a sliding manner and is detachably connected with the output end of the electric push rod; the fixed frame is arranged in the box body in a sliding mode and located on a plane formed when the movable frame moves, a locking unit used for locking and fixing is arranged on the fixed frame so that the fixed frame can be fixed in the box body, a guide rod connected to the fixed frame can penetrate through the movable frame in the radial direction, the guide rod is sleeved with elastic parts, and the elastic parts are located on the two sides of the movable frame. A connecting flange for limiting the elastic part is arranged at the free end of the guide rod; a distance measuring sensor is arranged on the fixed frame, and pressure detecting units used for detecting acting force applied by the movable frame to the elastic part are arranged on the two sides of the movable frame. According to the utility model, the electric push rod can realize thrust detection, tension detection, self-locking detection and stroke detection on one device, so that the assembly time is greatly shortened.

Description

Technical Field

[0001] The utility model relates to the technical field of electric push rods, in particular to a detection device for a multifunctional electric push rod. Background Art

[0002] After the electric actuator is assembled, it needs to undergo various performance tests, especially thrust testing, tension testing, self-locking testing, and stroke testing. Existing testing devices can only detect one or two of these, and completing all tests requires the use of multiple testing devices. Therefore, the electric actuator needs to be reinstalled on the equipment, which results in a significant time-consuming assembly and testing process and increases testing costs. Utility Model Content

[0003] The utility model aims to solve the above-mentioned defects and provides a detection device for a multifunctional electric push rod.

[0004] In order to overcome the defects in the background technology, the technical solution adopted by the present invention to solve the technical problem is: a multifunctional electric push rod detection device, comprising a box body, the upper part of which is an open structure, and the interior is used to install the electric push rod to be tested;

[0005] A movable frame is slidably disposed in the box and is detachably connected to the output end of the electric push rod;

[0006] A fixed frame is slidably arranged in the box body and is located on a plane formed by the movable frame when it moves, so that the fixed frame, the movable frame and the electric push rod are on the same plane. A locking unit for locking and fixing is provided on the fixed frame so that the fixed frame can be fixed in the box body. A guide rod connected to the fixed frame radially passes through the movable frame, and an elastic portion is sleeved on the guide rod, and the elastic portion is located on both sides of the movable frame. A connecting flange for limiting the elastic portion is provided on the free end of the guide rod;

[0007] The fixed frame is provided with a distance measuring sensor for detecting the displacement change of the movable frame, and pressure detection units for detecting the force applied by the movable frame to the elastic part are provided on both sides of the movable frame.

[0008] A further improvement includes a detachable connection flange provided on the free end of the guide rod.

[0009] A further improvement includes laying guide rails on opposite inner walls of the box body, and sliding blocks respectively connected to the fixed frame and the movable frame are slidably provided on the guide rails.

[0010] A further improvement includes that the pressure detection unit includes a circular ring plate and a plurality of pressure sensors evenly and equidistantly distributed on the circular ring plate, and the pressure sensors are connected to the outer wall of the movable frame.

[0011] A further improvement includes that both the fixed frame and the movable frame are rectangular frames.

[0012] Further improvements include that the locking unit includes a rack, a locking bolt and a locking tooth plate laid on the inner wall of the box body, the rack is parallel to the moving direction of the fixing frame, and the fixing frame is provided with a threaded hole connected to the locking bolt, and the threaded end of the locking bolt is rotatably connected to the locking tooth plate, and the locking bolt is rotated to engage the locking tooth plate with the rack.

[0013] A further improvement includes installing a mounting base for loading the electric push rod on the inner wall of the box.

[0014] A further improvement includes providing a connecting seat on the movable frame for detachable connection with the output end of the electric push rod.

[0015] The beneficial effects of the utility model are as follows: the electric push rod in the design can realize thrust detection, tension detection, self-locking detection and stroke detection on one device, which greatly shortens the assembly time, and the design structure is simple, easy to operate and has low production cost; the position of the fixing frame can be adjusted by the locking unit; the pressure detection unit can be used to detect the extreme push and pull force of the electric push rod. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0017] Figure 1 It is the main view of the utility model;

[0018] Figure 2 It is a partial diagram of the utility model;

[0019] Figure 3 yes Figure 1 Middle A enlarged view;

[0020] In the figure, 1-connecting base, 2-box, 3-slider, 4-guide rail, 5-distance sensor, 6-fixed frame, 7-elastic part, 8-movable frame, 9-guide rod, 10-connecting flange, 11-rack, 12-locking gear, 13-locking bolt, 14-circular ring plate, 15-pressure sensor, and 16-mounting base. DETAILED DESCRIPTION

[0021] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present invention. Obviously, the embodiments described are part of the embodiments of the present invention, not all of them. The embodiments of the basic utility model and all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present utility model.

[0022] according to Figure 1 As shown, a multifunctional electric push rod detection device includes a box body 2, the upper part of which is an open structure, and the interior is used to install the electric push rod to be tested;

[0023] The movable frame 8 is slidably disposed in the box body 2 and is detachably connected to the output end of the electric push rod, thereby driving the movable frame 8 to move in the box body 2;

[0024] The fixed frame 6 is slidably arranged in the box body 2 and is located on the plane formed by the movable frame 8 when it moves, so that the fixed frame 6, the movable frame 8 and the electric push rod are in the same plane. A locking unit for locking and fixing is provided on the fixed frame 6 so that the fixed frame 6 can be fixed in the box body 2. A guide rod 9 connected to the fixed frame 6 radially passes through the movable frame 8, and an elastic portion 7 is sleeved on the guide rod 9, and the elastic portion 7 is located on both sides of the movable frame 8. A connecting flange 10 for limiting the elastic portion 7 is provided on the free end of the guide rod 9;

[0025] The fixed frame 6 is provided with a distance measuring sensor 5 for detecting the displacement change of the movable frame 8 , and pressure detection units are provided on both sides of the movable frame 8 for detecting the force applied by the movable frame 8 to the elastic part 7 .

[0026] In this embodiment, in order to facilitate the disassembly of the elastic portion 7 , a detachable connecting flange 10 is provided on the free end of the guide rod 9 .

[0027] In this embodiment, in order to enable the fixed frame 6 and the movable frame 8 to be movably arranged in the box body 2, guide rails 4 are respectively laid on the opposite inner walls of the box body 2, and sliders 3 respectively connected to the fixed frame 6 and the movable frame 8 are slidably arranged on the guide rails 4.

[0028] In this embodiment, if Figure 3 As shown, the pressure detection unit includes a circular plate 14 and a number of pressure sensors 15 evenly and equidistantly distributed on the circular plate 14. The pressure sensor 15 is connected to the outer wall of the movable frame 8 and is in direct contact with the circular plate 14 through the elastic part 7 to ensure uniform force. The pressure sensor 15 detects the force applied to it by the elastic part 7, and is further used to detect the maximum thrust and maximum pull of the electric push rod.

[0029] In this embodiment, in order to maintain stability during detection, the fixed frame 6 and the movable frame 8 are both rectangular frames.

[0030] In this embodiment, if Figure 2 As shown, the locking unit includes a rack 11, a locking bolt 13 and a locking tooth plate 12 laid on the inner wall of the box body 2, the rack 11 is parallel to the moving direction of the fixing frame 6, and a threaded hole connected to the locking bolt 13 is opened on the fixing frame 6, and the threaded end of the locking bolt 13 is rotatably connected to the locking tooth plate 12, and the locking bolt 13 is rotated to engage the locking tooth plate 12 with the rack 11, thereby limiting the movement of the fixing frame 6. This design is used for adjustment during stroke detection test, push-pull force detection test, and self-locking force detection test, and the operation time between each test is shortened by quickly adjusting the position of the fixing frame 6.

[0031] In this embodiment, in order to quickly fix the electric push rod in the box body 2, a mounting seat 16 for loading the electric push rod is installed on the inner wall of the box body 2.

[0032] In this embodiment, the movable frame 8 is provided with a connecting seat 1 for detachably connecting to the output end of the electric push rod.

[0033] Working principle:

[0034] In the stroke detection test, the locking unit first locks the fixed frame 6. At this time, the movable frame 8 cannot contact the elastic part 7 within its moving range. The electric push rod is installed on the mounting base 16. The output end of the electric push rod is connected to the connecting base 1. The electric push rod drives the movable frame 8 to move. The distance measuring sensor 5 is used to detect the distance change between the fixed frame 6 and the movable frame 8, and then the displacement change of the movable frame 8 is detected. In this way, the stroke length of the electric push rod in the fully retracted and fully extended states can be detected.

[0035] In the push-pull force detection test, it is used to test the ultimate thrust and ultimate pull of the electric push rod. The electric push rod drives the movable frame 8 to compress the elastic part 7 between the movable frame 8 and the fixed frame 6 until the electric push rod can no longer compress the elastic part 7. The maximum thrust at this time can be recorded by the pressure detection unit. Then, the electric push rod drives the movable frame 8 to compress another elastic part 7 on the guide rod 9 until the electric push rod can no longer compress the elastic part 7. The maximum pull at this time can be recorded by the pressure detection unit.

[0036] In the self-locking force detection test, after the electric push rod compresses the elastic part 7 to a certain distance, the power supply of the electric push rod is cut off to observe whether the push rod will retract under the action of the load, and the displacement change of the movable frame 8 is accurately detected by the distance measuring sensor 5.

[0037] The above is only a preferred specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the present invention can make equivalent replacements or changes based on the technical solution and utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A multifunctional electric push rod detection device, characterized in that: It comprises a box (2), the upper portion of which is an open structure, and the interior of which is used to install the electric push rod to be tested; A movable frame (8) is slidably disposed in the box (2) and is detachably connected to the output end of the electric push rod; A fixed frame (6) is slidably arranged in the box body (2) and is located on a plane formed by the movable frame (8) when it moves, so that the fixed frame (6), the movable frame (8) and the electric push rod are on the same plane, and a locking unit for locking and fixing is provided on the fixed frame (6) so that the fixed frame (6) can be fixed in the box body (2), and a guide rod (9) connected thereto radially passes through the movable frame (8), and an elastic part (7) is sleeved on the guide rod (9), and the elastic part (7) is located on both sides of the movable frame (8), and a connecting flange (10) for limiting the elastic part (7) is provided on the free end of the guide rod (9); The fixed frame (6) is provided with a distance measuring sensor (5) for detecting the displacement change of the movable frame (8), and pressure detection units for detecting the force applied by the movable frame (8) to the elastic part (7) are provided on both sides of the movable frame (8).

2. A detection device for a multifunctional electric linear actuator according to claim 1, characterized in that: A connecting flange (10) is detachably provided on the free end of the guide rod (9).

3. The detection device for a multifunctional electric linear actuator according to claim 1, wherein: Guide rails (4) are respectively laid on opposite inner walls of the box body (2), and sliders (3) are slidably arranged on the guide rails (4) and are respectively connected to the fixed frame (6) and the movable frame (8).

4. The detection device for a multifunctional electric linear actuator according to claim 1, wherein: The pressure detection unit comprises a circular ring plate (14) and a plurality of pressure sensors (15) evenly and equidistantly distributed on the circular ring plate (14); the pressure sensors (15) are connected to the outer wall of the movable frame (8).

5. The detection device for a multifunctional electric linear actuator according to claim 1, wherein: The fixed frame (6) and the movable frame (8) both adopt rectangular frames.

6. The detection device for a multifunctional electric linear actuator according to claim 1, wherein: The locking unit comprises a rack (11), a locking bolt (13) and a locking tooth plate (12) laid on the inner wall of the box body (2), the rack (11) is parallel to the moving direction of the fixing frame (6), and the fixing frame (6) is provided with a threaded hole connected to the locking bolt (13), and the threaded end of the locking bolt (13) is rotatably connected to the locking tooth plate (12), and the locking bolt (13) is rotated to make the locking tooth plate (12) engage with the rack (11).

7. The detection device for a multifunctional electric linear actuator according to claim 1, wherein: A mounting seat (16) for loading an electric push rod is mounted on the inner wall of the box (2).

8. The detection device for a multifunctional electric linear actuator according to claim 1, wherein: The movable frame (8) is provided with a connecting seat (1) for detachably connecting to the output end of the electric push rod.

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