Full-automatic weighing instrument for geotechnical test

Abstract

A full-automatic weighing instrument for a soil test comprises a rack, a three-axis moving device is arranged in the rack, the power output end of the three-axis moving device is connected with a moving seat, a weightometer is arranged in the moving seat, the lower end of the weighing measuring end of the weightometer is connected with a mechanical arm fixing frame, a mechanical arm gripper is arranged on the mechanical arm fixing frame, and the mechanical arm gripper is connected with a mechanical arm. A controller and a data acquisition instrument are arranged in the machine frame, the signal output end of the weighing meter is connected with the signal input end of the data acquisition instrument, and the three-axis moving device, the control end of the mechanical arm gripper and the signal output end of the data acquisition instrument are all connected with the controller. According to the utility model, the full-automatic batch weighing operation of soil samples is realized through the mechanical arm gripper, the three-axis moving device, the controller and the data acquisition instrument, the traditional tedious work of manual carrying and manual weighing and counting is replaced, the working efficiency of a soil sample weighing test is greatly improved, and personnel in a laboratory can conveniently obtain a test result in time.

Description

Technical Field

[0001] The utility model relates to the field of machinery, in particular to a measuring instrument, in particular to a full-automatic weighing instrument for geotechnical tests. Background Art

[0002] Geotechnical testing is an important part of engineering geological surveys. It provides reliable indicators of soil sample physical and mechanical properties for soil deformation mechanisms and engineering geological properties. In geotechnical testing, the test of soil sample moisture content is particularly critical because it directly affects the physical and mechanical properties of the soil and the feasibility of engineering construction. In the prior art, the soil sample moisture content test method usually adopts the weighing method, which calculates the moisture content by comparing the weight difference of the soil sample before and after drying. However, the existing weighing method has many shortcomings in the operation process. First of all, it is necessary to manually repeat the handling and weighing operations many times, which consumes a lot of time and labor costs, is inefficient, and manually recording data is prone to introduce human errors, affecting the accuracy of the test results. Summary of the invention

[0003] The utility model aims to provide a fully automatic weighing instrument for geotechnical tests, which aims to solve the technical problem of low operating efficiency of soil sample weighing tests in the prior art.

[0004] The utility model discloses a fully automatic weighing instrument for geotechnical testing, comprising a frame, a three-axis moving device is arranged in the frame, a power output end of the three-axis moving device is connected to a moving seat, a weighing meter is arranged in the moving seat, a lower end of the weighing and measuring end of the weighing meter is connected to a mechanical arm fixing frame, a mechanical arm gripper is arranged on the mechanical arm fixing frame, a controller and a data acquisition instrument are arranged in the frame, a signal output end of the weighing meter is connected to a signal input end of the data acquisition instrument, and the three-axis moving device, the control end of the mechanical arm gripper, and the signal output end of the data acquisition instrument are all connected to the controller.

[0005] Furthermore, the three-axis moving device includes an X-axis driving motor, a Y-axis driving motor and a Z-axis driving motor, and the X-axis driving motor, the Y-axis driving motor and the Z-axis driving motor are connected to the moving base through a three-axis transmission mechanism.

[0006] Furthermore, the X-axis drive motor, the Y-axis drive motor, and the Z-axis drive motor are all stepper motors.

[0007] Furthermore, a first bracket is provided in the movable seat, and the weighing scale is provided on the first bracket.

[0008] Furthermore, a second bracket is provided in the mechanical arm fixing frame, and the mechanical arm gripper is provided on the second bracket.

[0009] Compared with the prior art, the utility model has a positive and obvious effect. The utility model realizes the fully automatic weighing operation of soil samples in batches through a mechanical arm gripper, a three-axis moving device, a controller and a data acquisition instrument, replacing the tedious work of traditional manual handling, manual weighing and counting, greatly improving the efficiency of soil sample weighing test operations, and facilitating laboratory personnel to obtain test results in a timely manner. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 The utility model is a schematic diagram of a fully automatic weighing instrument for geotechnical testing.

[0011] Figure 2 The utility model is a cross-sectional schematic diagram of a fully automatic weighing instrument for geotechnical tests. DETAILED DESCRIPTION

[0012] The present invention is further described below in conjunction with an embodiment, but the present invention is not limited to the embodiment. Any similar structure and similar changes of the present invention should be included in the protection scope of the present invention. The use of directions such as up, down, front, back, left, and right in the present invention is only for the convenience of clear description and is not a limitation on the technical solution of the present invention.

[0013] like Figure 1 and Figure 2 As shown, a fully automatic weighing instrument for geotechnical testing of the utility model comprises a frame 9, in which a three-axis moving device (not shown) is arranged, the power output end of the three-axis moving device is connected to a moving seat 5, in which a weighing meter 7 is arranged, the lower end of the weighing and measuring end of the weighing meter 7 is connected to a mechanical arm fixing frame 4, on which a mechanical arm gripper 1 is arranged, a controller 10 and a data acquisition instrument 11 are arranged in the frame 9, the signal output end of the weighing meter 7 is connected to the signal input end of the data acquisition instrument 11, and the control end of the three-axis moving device, the mechanical arm gripper 1, and the signal output end of the data acquisition instrument 11 are all connected to the controller 10.

[0014] Furthermore, the three-axis moving device includes an X-axis driving motor 12, a Y-axis driving motor 13 and a Z-axis driving motor 14, and the X-axis driving motor 12, the Y-axis driving motor 13 and the Z-axis driving motor 14 are connected to the moving base 5 through a three-axis transmission mechanism (not shown in the figure).

[0015] Furthermore, the X-axis drive motor 12 , the Y-axis drive motor 13 , and the Z-axis drive motor 14 are all stepper motors.

[0016] Furthermore, a first bracket 6 is disposed in the movable seat 5 , and the weighing scale 7 is disposed on the first bracket 6 .

[0017] Furthermore, a second bracket 2 is provided in the robot arm fixing frame 4 , and the robot arm gripper 1 is provided on the second bracket 2 .

[0018] Specifically, the weighing scale 7 is connected to the data acquisition device 11 via a weighing scale wire 8 , and the robotic arm gripper 1 is connected to the controller 10 via a robotic arm wire 3 .

[0019] Specifically, the three-axis moving device, X-axis driving motor 12, Y-axis driving motor 13, Z-axis driving motor 14, three-axis transmission mechanism, stepping motor, weighing scale 7, and robot gripper 1 in this embodiment all adopt the known solutions in the prior art, which are well known to those skilled in the art and will not be described in detail here. For example, the three-axis moving device can adopt the technical solution of the three-axis manipulator in CN 211615602U and CN206643914U.

[0020] The working principle of this embodiment:

[0021] In specific implementation, the robot gripper 1 receives the command signal from the controller 10 to complete the grabbing and releasing of the soil sample. When the soil sample is grabbed, the data of the weighing meter 7 is immediately read and transmitted to the data acquisition instrument 11. The actual weighing value of the soil sample is calculated by the controller (the weighing value of the weighing meter 7 minus the inherent weight of the device to obtain the actual weighing value of the soil sample). In addition, the controller 10 sends a command signal to the three-axis moving device, and the three-axis moving device drives the robot gripper 1 to move up and down, left and right, and forward and backward through the moving seat 5 and the robot arm fixing frame 4 and controls its displacement amplitude. The robot gripper 1 completes the batch weighing operation of array-arranged soil samples in the cycle of falling->grabbing->weighing->releasing->rising->moving->falling.

[0022] The utility model realizes the fully automatic weighing operation of soil samples in batches through a mechanical arm gripper 1, a three-axis moving device, a controller 10 and a data acquisition instrument 11, replacing the tedious work of traditional manual handling and manual weighing and counting, greatly improving the efficiency of soil sample weighing test operations and facilitating laboratory personnel to obtain test results in a timely manner.

Claims

1. A fully automatic weighing instrument for geotechnical testing, characterized in that: It includes a frame, in which a three-axis moving device is arranged, a power output end of the three-axis moving device is connected to a moving seat, a weighing meter is arranged in the moving seat, the lower end of the weighing measuring end of the weighing meter is connected to a mechanical arm fixing frame, a mechanical arm gripper is arranged on the mechanical arm fixing frame, a controller and a data acquisition instrument are arranged in the frame, the signal output end of the weighing meter is connected to the signal input end of the data acquisition instrument, and the control end of the three-axis moving device, the mechanical arm gripper, and the signal output end of the data acquisition instrument are all connected to the controller.

2. The fully automatic weighing instrument for geotechnical testing according to claim 1, characterized in that: The three-axis moving device comprises an X-axis driving motor, a Y-axis driving motor and a Z-axis driving motor, and the X-axis driving motor, the Y-axis driving motor and the Z-axis driving motor are connected to the moving seat through a three-axis transmission mechanism.

3. A geotechnical test fully automatic weighing instrument according to claim 2, characterized in that: The X-axis drive motor, the Y-axis drive motor, and the Z-axis drive motor are all stepper motors.

4. The fully automatic weighing instrument for geotechnical testing according to claim 1, characterized in that: A first bracket is arranged in the movable seat, and the weighing meter is arranged on the first bracket.

5. The fully automatic weighing instrument for geotechnical testing according to claim 1, characterized in that: A second bracket is arranged in the mechanical arm fixing frame, and the mechanical arm gripper is arranged on the second bracket.

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