A two-way positioning limiting system of a center-of-mass measuring platform and a use method thereof

Abstract

The application belongs to the technical field of centroid measurement, and particularly relates to a two-way positioning limiting system of a centroid measurement platform and a use method. The two-way positioning limiting system comprises a first linear telescopic electric cylinder, a second linear telescopic electric cylinder, an electric cylinder fixed base, a side support plate, a positioning limiting block, a first positioning limiting screw rod, a second positioning limiting screw rod and an upper end fixed plate. The two-way positioning limiting system is matched with the centroid measurement platform, and the centroid measurement platform is provided with a load mounting plate. The device can avoid sensor overload, realize positioning and stopping of a measured object, and protect the measurement accuracy and long-term use of the sensor.

Description

Technical Field

[0001] The present invention belongs to the technical field of centroid measurement, and in particular relates to a bidirectional positioning and limiting system of a centroid measurement platform and a use method thereof. Background Art

[0002] The existing centroid measuring platform needs to bear the entire weight by the weighing sensor when it is not being measured or transported. There is no overload protection, which can easily cause damage to the weighing sensor and make the weighing sensor lose its measurement accuracy.

[0003] Typically, the sensor of a centroid measurement platform is constantly under load, causing the load cell's accuracy to decline over time, hindering long-term protection and use. Therefore, a bidirectional positioning and limiting system is needed for the centroid measurement platform. This system can separate the load cell from the load and position the load to protect the sensor. Summary of the Invention

[0004] In the first aspect, the present invention proposes a bidirectional positioning and limiting system for a centroid measuring platform, the bidirectional positioning and limiting system comprising a first linear telescopic electric cylinder 1-1, a second linear telescopic electric cylinder 1-2, an electric cylinder fixed base 2, a side support plate 3, a positioning and limiting block 4, a first positioning and limiting screw 5-1, a second positioning and limiting screw 5-2 and an upper end fixing plate 6; the bidirectional positioning and limiting system cooperates with the centroid measuring platform, and the centroid measuring platform is provided with a load mounting plate 9;

[0005] The electric cylinder fixed base 2 is an inverted "concave" shape, and the first linear telescopic electric cylinder 1-1 is located in the groove of the electric cylinder fixed base 2. The first linear telescopic electric cylinder 1-1 is provided with a first positioning limit screw 5-1, and the first positioning limit screw 5-1 passes through the electric cylinder fixed base 2; the upper surface of the electric cylinder fixed base 2 is provided with a side support plate 3, and the upper end fixed plate 6 is supported above the side support plate 3; the second linear telescopic electric cylinder 1-2 is located above the upper end fixed plate 6, and the second positioning limit screw 5-2 passes through the upper end fixed plate 6; the positioning limit block 4 is located between the first positioning limit screw 5-1 and the second positioning limit screw 5-2, and is connected to the load mounting plate 9.

[0006] Preferably, the screw heads of the first positioning and limiting screw 5 - 1 and the second positioning and limiting screw 5 - 2 are spherical; and the positioning and limiting block 4 is provided with a concave spherical surface that matches the spherical shape.

[0007] In the second aspect, the present invention proposes a method for using the bidirectional positioning and limiting system described in the first aspect, wherein the bidirectional positioning and limiting system cooperates with a center of mass measuring platform, and the center of mass measuring platform includes a weighing sensor fixing seat 7, a weighing sensor 8 and a load mounting plate 9; the specific steps are as follows: the bidirectional positioning and limiting system is fixed above the weighing sensor fixing seat 7 through the electric cylinder fixing base 2, and the positioning and limiting block 4 is connected to the load mounting plate 9.

[0008] Preferably, during weighing, the first linear telescopic electric cylinder 1 - 1 drives the first positioning limit screw 5 - 1 to move down to the maximum deformation position of the weighing sensor 8 to prevent the object being measured from exceeding the overload limit.

[0009] Furthermore, when idle or transported, the first linear telescopic electric cylinder 1-1 drives the first positioning limit screw 5-1 to rise, pushing the positioning limit block 4 to drive the load mounting plate 9 to separate from the weighing sensor 8; at the same time, the second linear telescopic electric cylinder 1-2 drives the second positioning limit screw 5-2 to move down to the center of the positioning limit block 4 and the spherical surface to fit the second positioning limit screw 5-2, thereby realizing the separation and positioning stop of the load mounting plate and the weighing sensor.

[0010] Preferably, the bidirectional positioning and limiting system is symmetrically arranged on the weighing sensor fixing seat 7.

[0011] Furthermore, a total of four bidirectional positioning and limiting systems are provided.

[0012] The beneficial effects achieved by the present invention are as follows: the device can avoid sensor overload, realize positioning and stopping of the object to be measured, and protect the measurement accuracy and long-term use of the sensor. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is the main view of the bidirectional positioning and limiting system structure of the present invention.

[0014] Figure 2 It is a structural schematic diagram of the bidirectional positioning and limiting system of the present invention.

[0015] Figure 3 This is a schematic front view of the application of the bidirectional positioning and limiting system of the present invention.

[0016] Figure 4 Schematic diagram of the application of the bidirectional positioning and limiting system of the present invention. DETAILED DESCRIPTION

[0017] In order to make the objectives, technical solutions and advantages of the present invention more clear and explicit, the present invention is further described in detail with reference to the following examples.

[0018] It should be noted that the present invention is not limited to the following examples. The methods described are conventional methods unless otherwise specified. The raw materials described can be obtained from public commercial channels unless otherwise specified.

[0019] Example 1

[0020] A bidirectional positioning and limiting system for a centroid measuring platform, comprising a linear telescopic electric cylinder 1, an electric cylinder fixed base 2, a side support plate 3, a positioning and limiting block 4, a positioning and limiting screw 5, and an upper end fixing plate 6; the bidirectional positioning and limiting system cooperates with the centroid measuring platform, which is provided with a load mounting plate 9;

[0021] The electric cylinder fixed base 2 is an inverted "concave" shape, and the first linear telescopic electric cylinder 1-1 is located in the groove of the electric cylinder fixed base 2. The first linear telescopic electric cylinder 1-1 is provided with a first positioning limit screw 5-1, and the first positioning limit screw 5-1 passes through the electric cylinder fixed base 2; the upper surface of the electric cylinder fixed base 2 is provided with a side support plate 3, and the upper end fixed plate 6 is supported above the side support plate 3; the second linear telescopic electric cylinder 1-2 is located above the upper end fixed plate 6, and the second positioning limit screw 5-2 passes through the upper end fixed plate 6; the positioning limit block 4 is located between the first positioning limit screw 5-1 and the second positioning limit screw 5-2, and is connected to the load mounting plate 9.

[0022] Preferably, the screw heads of the first positioning and limiting screw 5 - 1 and the second positioning and limiting screw 5 - 2 are spherical; and the positioning and limiting block 4 is provided with a concave spherical surface that matches the spherical shape.

[0023] Example 2

[0024] The method for using the bidirectional positioning and limiting system described in Example 1, the bidirectional positioning and limiting system cooperates with the center of mass measuring platform, and the center of mass measuring platform includes a weighing sensor fixing seat 7, a weighing sensor 8 and a load mounting plate 9; the specific steps are as follows: the bidirectional positioning and limiting system is fixed above the weighing sensor fixing seat 7 through the electric cylinder fixing base 2, and there are four bidirectional positioning and limiting systems in total, which are symmetrically arranged on the weighing sensor fixing seat 7, and the positioning limit block 4 is connected to the load mounting plate 9.

[0025] During weighing, the first linear telescopic electric cylinder 1-1 drives the first positioning limit screw 5-1 downward to the maximum deformation position of the weighing sensor 8, preventing the object being measured from exceeding the overload limit. When the load of the object being measured is too large and exceeds the maximum measurement value of the weighing sensor, causing the weighing sensor to exceed the maximum deformation position, the screw on the bottom linear telescopic electric cylinder engages with the positioning limit block 4, preventing the weighing sensor 8 from exceeding the maximum deformation value, thereby protecting the sensor from damage caused by excessive load. When disengaging, the first positioning limit screw 5-1 extends, driving the positioning limit block 4 to move upward, allowing the object being measured to separate from the weighing sensor 8 to the specified position. At the same time, the second positioning limit screw 5-2 at the upper end engages with the positioning limit block 4, achieving positioning and stopping of the object being measured.

[0026] When idle or transported, the first linear telescopic electric cylinder 1-1 drives the first positioning limit screw 5-1 to rise, pushing the positioning limit block 4 to drive the load mounting plate 9 to separate from the weighing sensor 8; at the same time, the second linear telescopic electric cylinder 1-2 drives the second positioning limit screw 5-2 to move down to the center of the positioning limit block 4 and the spherical surface to fit the second positioning limit screw 5-2, thereby realizing the separation and positioning stop of the load mounting plate and the weighing sensor.

Claims

1. A bidirectional positioning and limiting system for a centroid measuring platform, characterized in that: The bidirectional positioning and limiting system comprises a first linear telescopic electric cylinder (1-1), a second linear telescopic electric cylinder (1-2), an electric cylinder fixed base (2), a side support plate (3), a positioning and limiting block (4), a first positioning and limiting screw (5-1), a second positioning and limiting screw (5-2), and an upper end fixing plate (6); the bidirectional positioning and limiting system cooperates with a centroid measuring platform, and the centroid measuring platform is provided with a load mounting plate (9); The electric cylinder fixed base (2) is in an inverted "concave" shape; the first linear telescopic electric cylinder (1-1) is located in a groove of the electric cylinder fixed base (2); the first linear telescopic electric cylinder (1-1) is provided with a first positioning limit screw (5-1), and the first positioning limit screw (5-1) passes through the electric cylinder fixed base (2); a side support plate (3) is provided on the upper surface of the electric cylinder fixed base (2), and the upper end fixing plate (6) is supported above the side support plate (3); the second linear telescopic electric cylinder (1-2) is located above the upper end fixing plate (6), and the second positioning limit screw (5-2) passes through the upper end fixing plate (6); the positioning limit block (4) is located between the first positioning limit screw (5-1) and the second positioning limit screw (5-2), and is connected to the load mounting plate (9).

2. The bidirectional positioning and limiting system according to claim 1, characterized in that: The screw heads of the first positioning and limiting screw (5-1) and the second positioning and limiting screw (5-2) are spherical; and the positioning and limiting block (4) is provided with a concave spherical surface that matches the spherical shape.

3. A method for using the bidirectional positioning and limiting system according to claim 1 or 2, characterized in that: The bidirectional positioning and limiting system cooperates with a centroid measuring platform, and the centroid measuring platform includes a weighing sensor fixing seat (7), a weighing sensor (8) and a load mounting plate (9); the specific steps are as follows: the bidirectional positioning and limiting system is fixed above the weighing sensor fixing seat (7) through an electric cylinder fixing base (2), and the positioning and limiting block (4) is connected to the load mounting plate (9).

4. The method of use according to claim 3, characterized in that: During weighing, the first linear telescopic electric cylinder (1-1) drives the first positioning limit screw (5-1) to move downward to the maximum deformation position of the weighing sensor (8), thereby preventing the object being measured from exceeding the overload limit.

5. The method of use according to claim 4, characterized in that: When idle or transported, the first linear telescopic electric cylinder (1-1) drives the first positioning limit screw (5-1) to rise, pushing the positioning limit block (4) to drive the load mounting plate (9) to separate from the weighing sensor (8); at the same time, the second linear telescopic electric cylinder (1-2) drives the second positioning limit screw (5-2) to move downward until the center of the positioning limit block (4) and the spherical surface fit the second positioning limit screw (5-2), thereby achieving separation of the load mounting plate from the weighing sensor and positioning stop.

6. The method of use according to claim 3, characterized in that: The bidirectional positioning and limiting system is symmetrically arranged on the weighing sensor fixing seat (7).

7. The method of use according to claim 6, characterized in that: There are four bidirectional positioning and limiting systems in total.

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