Automatic leveling device

Abstract

The utility model relates to the technical field of leveling, in particular to an automatic leveling device which comprises a placing table, a measuring assembly, a controller and a plurality of hydraulic telescopic legs. The measuring assembly is arranged on the placing table and is composed of a spirit bubble and a photosensitive assembly, the photosensitive assembly is arranged on the first side of the spirit bubble, the spirit bubble is provided with a light-transmitting surface corresponding to the photosensitive assembly, the photosensitive assembly is composed of a photosensitive element and a photosensitive sensor, the photosensitive element is connected with the photosensitive sensor, and the photosensitive sensor is connected with the controller; the hydraulic telescopic legs are connected to one side of the containing table, the hydraulic cylinders are connected with the controller, and the controller is configured to receive electric signals and drive the hydraulic telescopic legs according to the strength of the electric signals. According to the automatic leveling device, horizontal measurement is carried out through the measurement assembly composed of the spirit bubble and the photosensitive assembly, magnetic field interference can be effectively reduced, high measurement precision is guaranteed, and the application range is widened.

Description

Technical Field

[0001] The utility model relates to the technical field of leveling, in particular to an automatic leveling device. Background Art

[0002] The leveling system is an important component of the high-precision work platform and is widely used in various industries, such as various high-precision measurement and testing equipment, 3D printers, etc. Most of the early leveling systems used three-point support and manual leveling. Leveling was mainly done manually, usually requiring an operator to observe the bubble position of the level and give instructions, while another operator raised or lowered the legs through the hand-crank mechanism to make it level. This method takes a long time to adjust, has poor leveling accuracy, and is difficult to operate.

[0003] A Chinese utility model patent with publication number CN211968431U discloses an automatic leveling device for a 3D printer, which uses four electric telescopic rods to level the 3D printer. However, the device uses an electronic level, which is easily disturbed by magnetic fields, thereby affecting its measurement accuracy and has poor applicability. Utility Model Content

[0004] The purpose of the utility model is to provide an automatic leveling device, which performs horizontal measurement by means of a measuring component composed of a level bubble and a photosensitive component, can effectively reduce magnetic field interference, ensure high measurement accuracy, and increase the scope of application, so as to solve the problem pointed out in the background technology that the existing automatic leveling device using an electronic level is easily disturbed by the magnetic field, thereby affecting its measurement accuracy and having poor applicability.

[0005] The embodiments of the utility model are realized by the following technical solutions: an automatic leveling device, including a placement table, a measuring component, a controller and a plurality of hydraulic telescopic legs;

[0006] Wherein, the measuring component is arranged on the placing table, and is composed of a level bubble and a photosensitive component. The photosensitive component is arranged on a first side of the level bubble, and the level bubble has a light-transmitting surface corresponding to the photosensitive component. The photosensitive component is composed of a photosensitive element and a photosensitive sensor. The photosensitive element is configured to capture light passing through the light-transmitting surface of the level bubble. The signal output end of the photosensitive element is connected to the signal input end of the photosensitive sensor. The photosensitive sensor is configured to convert the received light signal into an electrical signal. The signal output end of the photosensitive sensor is connected to the signal input end of the controller.

[0007] The hydraulic telescopic leg is connected to one side of the placement table, and is composed of a hydraulic cylinder, a leg and a connecting pipeline. The oil outlet of the hydraulic cylinder is connected to the first end of the connecting pipeline, and the leg is slidably connected to the second end of the connecting pipeline. The hydraulic cylinder is connected to a controller, and the controller is configured to receive an electrical signal and drive several hydraulic cylinders in the multiple hydraulic telescopic legs according to the strength of the electrical signal.

[0008] According to a preferred embodiment, the photosensitive element is located in the vertical direction of the bubble body in the horizontal bubble in a horizontal state.

[0009] According to a preferred embodiment, the side observation area of ​​the photosensitive element is sealed with an opaque sealing material.

[0010] According to a preferred embodiment, the sealed cavity of the level bubble is filled with dark liquid.

[0011] According to a preferred embodiment, the measuring assembly is arranged on the same side as the hydraulic telescopic leg, and the measuring assembly further comprises a light source, which is arranged on the second side of the level bubble.

[0012] According to a preferred embodiment, the light source is located in the vertical direction of the bubble body in the horizontal bubble in a horizontal state.

[0013] According to a preferred embodiment, the number of the hydraulic telescopic legs is three.

[0014] The technical solution of an automatic leveling device provided by the embodiment of the utility model has at least the following advantages and beneficial effects: (1) The automatic leveling device performs horizontal measurement through a measuring component composed of a level bubble and a photosensitive component, which can effectively reduce magnetic field interference, ensure high measurement accuracy, and improve the scope of application; (2) The light-transmitting surface in the middle of the level bubble, the photosensitive element arranged in the vertical direction of the light-transmitting surface, and the observation area beside the photosensitive element are sealed with opaque sealing materials, which helps to ensure the accurate capture of light passing through the bubble body and the positioning of the bubble body, thereby improving the leveling accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 A structural block diagram of the automatic leveling device provided in Example 1 of the utility model;

[0016] Figure 2 A schematic diagram of the structure of the automatic leveling device provided in Example 1 of the utility model;

[0017] Figure 3 A schematic diagram of the structure of the measurement assembly provided in Example 1 of the utility model;

[0018] Figure 4A structural block diagram of a single hydraulic cylinder leveling method of an automatic leveling device provided in Example 1 of the utility model;

[0019] Figure 5 A structural block diagram of a manual leveling method of an automatic leveling device provided in Example 1 of the utility model;

[0020] Icon: 1-placing table, 2-measuring component, 201-level bubble, 202-light-transmitting surface, 203-photosensitive element, 204-photosensitive sensor, 205-sealed chamber, 3-hydraulic telescopic leg, 301-connecting pipeline, 302-support leg. DETAILED DESCRIPTION

[0021] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Generally, the components of the embodiments of the utility model described and shown in the drawings here can be arranged and designed in various different configurations.

[0022] Example 1

[0023] See also Figures 1 to 3 As shown, the embodiment of the utility model provides an automatic leveling device. The structural block diagram of the automatic leveling device can be referred to Figure 1 The specific structural diagram of the automatic leveling device can be referred to Figure 2 shown.

[0024] The automatic leveling device includes a placement platform 1, a measuring component 2, a controller and a plurality of hydraulic telescopic legs 3. In one embodiment, the present embodiment adopts three-point support, that is, the number of hydraulic telescopic legs 3 is three, but there is no specific limitation here, and four, five, etc. can also be selected. In actual operation, the placement platform 1 is placed on the ground through the plurality of hydraulic telescopic legs 3 connected to one side thereof. It can be understood that the ground can include any terrain, so that the automatic leveling device can be applied to leveling under different terrains, and no further elaboration is made here.

[0025] The adjustment method of the automatic leveling device in this embodiment can also be manual adjustment, wherein the extension and retraction of the leg 302 cylinder is controlled by operating the leg 302 control valve of the hydraulic telescopic leg 3, and each leg 302 cylinder can be equipped with an independent control valve to realize manual and individual adjustment of the extension and retraction amount of each leg 302, so as to adjust the leveling device to a stable state. The embodiment of the utility model does not further limit the leveling method.

[0026] The measuring component 2 is arranged on the placing table 1, and is composed of a level bubble 201 and a photosensitive component; in one embodiment, the measuring component 2 is arranged above the placing table 1, and relies on natural light for measurement; in another embodiment, the measuring component 2 is arranged on the same side as the hydraulic telescopic leg 3. Since the measuring component 2 located below the placing table 1 is blocked by the shadow area of ​​the placing table 1 and cannot obtain natural light normally, for the embodiment in which the measuring component 2 is arranged on the same side as the hydraulic telescopic leg 3, the measuring component 2 provided in this embodiment also includes a light source, which is arranged on the second side of the level bubble 201 to replace natural light for measurement.

[0027] More specifically, the specific structural diagram of the measuring component 2 can be referred to Figure 3 The photosensitive component is arranged on the first side of the horizontal bubble 201, and the horizontal bubble 201 has a light-transmitting surface 202 corresponding to the photosensitive component. The light-transmitting surface 202 can allow light to enter the second side of the horizontal bubble 201 and pass through the first side of the horizontal bubble 201 opposite to the second side. In this process, if the light passes through the bubble body, it indicates that the placement table 1 is in a stable state, and if the light does not pass through the bubble body, it indicates that the placement table 1 is in an unstable state, which helps to ensure that the photosensitive component accurately captures the light and positions the bubble body. How to obtain the information of whether the light passes through the bubble body will be explained in detail later.

[0028] In one possible implementation, the light-transmitting surface 202 is located in the middle of the level bubble 201. Similarly, the photosensitive component is also correspondingly arranged on the first side of the middle of the level bubble 201. In this implementation, the light-transmitting material used for the light-transmitting surface 202 may include glass, plexiglass, acrylic, etc. The second side of the light-transmitting surface 202 is larger than the first side. Preferably, only the area on the first side of the level bubble 201 that is opposite to the photosensitive element 203 is the light-transmitting surface 202. By allowing only the middle of the level bubble 201 to transmit light, it helps to ensure the accurate capture of light passing through the bubble body and the positioning of the bubble body. Preferably, the bubble body should be as small as possible to improve the leveling accuracy.

[0029] The photosensitive component is composed of a photosensitive element 203 and a photosensitive sensor 204. Different from an electronic level, the automatic leveling device performs horizontal measurement through a measuring component 2 composed of a level bubble 201 and a photosensitive component, which can effectively reduce magnetic field interference, ensure high measurement accuracy, and increase the scope of application.

[0030] The photosensitive element 203 is configured to capture light that passes through the light-transmitting surface 202 of the level bubble 201. The signal output end of the photosensitive element 203 is connected to the signal input end of the photosensor 204, so as to send the acquired light signal to the photosensor 204. The photosensor 204 is configured to convert the received light signal into an electrical signal. The signal output end of the photosensor 204 is connected to the signal input end of the controller. It should be noted that whether the light passes through the bubble can be determined based on the intensity of the electrical signal. For example, when the intensity of the electrical signal is intensity A, it indicates that the bubble is located at the light-transmitting surface 202 of the level bubble 201. When the intensity of the electric signal is B intensity, A is greater than B, which means that the bubble is located between the light-transmitting surfaces 202 of the horizontal bubble 201, but not located in the center of the light-transmitting surface 202. The light passes through the narrow ends of the bubble, which causes a higher reduction than when it passes through the middle. When the intensity of the electric signal is C intensity, A is greater than B and B is greater than C, which means that the bubble is located at both ends of the light-transmitting surface 202, and the light passes through the liquid filled in the sealed cavity 205, causing it to be severely reduced. In a possible implementation, the sealed cavity 205 of the horizontal bubble 201 is filled with dark liquid. Based on the above judgment method, the controller can realize the positioning of the bubble by simply judging the intensity of the electric signal, and then realize the control of the extension amount of the hydraulic telescopic leg 3, thereby ensuring the precise control of the hydraulic telescopic leg 3.

[0031] In order to further ensure the accurate capture of light passing through the bubble body and the positioning of the bubble body, the present embodiment sets the photosensitive element 203 in the vertical direction of the bubble body in the horizontal bubble 201, and seals the observation area beside the photosensitive element 203 with an opaque sealing material to achieve the encapsulation of the horizontal bubble 201 and the photosensitive element 203, so that the photosensitive element 203 can only receive light from the direction of the light-transmitting surface 202. In view of the fact that the measuring component 2 and the hydraulic telescopic leg 3 are arranged on the same side, that is, the measuring component 2 is suspended, the present embodiment sets the light source in the vertical direction of the bubble body in the horizontal bubble 201.

[0032] In one embodiment, the hydraulic telescopic leg 3 is composed of a hydraulic cylinder, a leg 302 and a connecting pipeline 301; wherein the oil outlet of the hydraulic cylinder is connected to the first end of the connecting pipeline 301, and the leg 302 is slidably connected to the second end of the connecting pipeline 301. When the hydraulic cylinder is started and supplies oil to the connecting pipeline 301, the end of the leg 302 slidably connected to the second end of the connecting pipeline extends outward, and when the hydraulic cylinder is started and returns oil, the end of the leg 302 slidably connected to the second end of the connecting pipeline contracts inward, thereby realizing the control of the telescopic amount of the leg 302, and adjusting the height of each hydraulic telescopic leg 3 until the placing platform 1 is leveled. Specifically, the hydraulic cylinder is connected to a controller, and the controller is configured to receive an electrical signal and drive a number of hydraulic cylinders in the plurality of hydraulic telescopic legs 3 according to the strength of the electrical signal. In a possible implementation, each hydraulic telescopic leg 3 is configured to telescope simultaneously, thereby realizing the adjustment of the height of the placing platform 1.

[0033] In one possible implementation, see Figure 4 As shown, multiple hydraulic telescopic legs 3 use a single hydraulic cylinder for oil supply, which is different from the way that multiple hydraulic telescopic legs 3 are driven by independent hydraulic cylinders. The way of driving a single hydraulic cylinder uses a three-way valve, a four-way valve, etc. to control the conduction of the connecting pipeline 301 connected to each leg 302. The three-way valve and the four-way valve are set corresponding to the number of hydraulic telescopic legs 3. The controller is respectively connected to the hydraulic cylinder and the three-way valve, and realizes oil supply and oil return by driving the hydraulic cylinder, and realizes the conduction of the corresponding connecting pipeline 301 by driving the three-way valve. The details are not repeated in detail.

[0034] In another manual leveling method, see Figure 5 As shown, the hydraulic telescopic leg 3 only includes a connecting pipeline 301, a control valve and a leg 302. The control valve is arranged on the connecting pipeline 301 and is normally open. By observing the position of the bubble body and the position of the bubble body in the sealed cavity 205, the operator can know the high point of the placement table 1. The operator lowers the high point of the placement table 1 in any way, such as directly pressing the high point with the hand. At this time, the extension length of the leg 302 in the corresponding direction changes. When the bubble body is located in the middle of the sealed cavity 205, the photosensitive element 203 captures the light, and the photosensor 204 sends an electrical signal to the controller. The controller receives the electrical signal and controls the control valve to close, the hydraulic oil moving channel in the connecting pipeline 301 is closed, the leg 302 is locked, and the posture of the leveling device is fixed. The whole leveling process is simple and efficient.

[0035] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may be subject to various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. An automatic leveling device, characterized in that: It comprises a placement table (1), a measuring component (2), a controller and a plurality of hydraulic telescopic legs (3); The measuring component (2) is arranged on the placement table (1), and is composed of a level bubble (201) and a photosensitive component. The photosensitive component is arranged on a first side of the level bubble (201), and the level bubble (201) has a light-transmitting surface (202) corresponding to the photosensitive component. The photosensitive component is composed of a photosensitive element (203) and a photosensitive sensor (204). The photosensitive element (203) is configured to capture light that passes through the light-transmitting surface (202) of the level bubble (201). The signal output end of the photosensitive element (203) is connected to the signal input end of the photosensitive sensor (204). The photosensitive sensor (204) is configured to convert the received light signal into an electrical signal. The signal output end of the photosensitive sensor (204) is connected to the signal input end of the controller. The hydraulic telescopic leg (3) is connected to one side of the placement platform (1), and is composed of a hydraulic cylinder, a leg (302) and a connecting pipeline (301). The oil outlet of the hydraulic cylinder is connected to the first end of the connecting pipeline (301), and the leg (302) is slidably connected to the second end of the connecting pipeline (301). The hydraulic cylinder is connected to a controller, and the controller is configured to receive an electrical signal and drive a plurality of hydraulic cylinders in the plurality of hydraulic telescopic legs (3) according to the strength of the electrical signal.

2. The automatic leveling device according to claim 1, characterized in that: The photosensitive element (203) is located in the vertical direction of the bubble body in the horizontal bubble (201) in a horizontal state.

3. The automatic leveling device according to claim 2, characterized in that: The side observation area of ​​the photosensitive element (203) is sealed with an opaque sealing material.

4. The automatic leveling device according to claim 1, characterized in that: The sealed cavity (205) of the level bubble (201) is filled with dark liquid.

5. The automatic leveling device according to claim 1, characterized in that: The measuring component (2) is arranged on the same side as the hydraulic telescopic leg (3), and the measuring component (2) further comprises a light source, which is arranged on the second side of the level bubble (201).

6. The automatic leveling device according to claim 5, characterized in that: The light source is located in the vertical direction of the bubble body in the horizontal bubble (201) in a horizontal state.

7. The automatic leveling device according to any one of claims 1 to 6, characterized in that: The number of the hydraulic telescopic legs (3) is three.

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