Balancing support for improving weighing accuracy and application method thereof

Abstract

The invention discloses a balance support capable of improving weighing accuracy and an application method thereof.The balance support comprises a fixed base fixedly connected to a table top, a linear sliding rail is fixedly connected to the fixed base, a sliding table is slidably connected to the linear sliding rail, a sliding block is fixedly connected to the sliding table, and the sliding block is fixedly connected to the fixed base. The bottom end of the sliding block is fixedly connected with the output end of a stepping push rod motor, the upper end of the sliding block is fixedly connected with a supporting arm, and the supporting arm supports a discharging support through a silica gel pad. Through the structural strength of the supporting arms and the buffering and shock absorption characteristics of the silica gel pads, the weighing balance support is kept stable in a complex operation environment, and weighing errors caused by external factors are reduced; meanwhile, interference is eliminated based on multiple effects of real-time dynamic adjustment of a stepping push rod motor, stable supporting of a supporting arm and impact vibration absorption of a buffering silica gel pad, it is ensured that a weighing sensor obtains a real weight signal, and the accuracy is greatly improved.

Description

Technical Field

[0001] The present invention relates to the technical field of laboratory weighing equipment. Specifically, it relates to a balance bracket for improving weighing accuracy and its application method. Background Art

[0002] In scenarios such as chemical synthesis and biological research experiments, it is very common for robotic arms to cooperate with weighing devices for operations. However, the vibrations, inertial forces generated during the movement of the robotic arm, and the impact force when an item is placed on the weighing rack often result in large fluctuations and low accuracy of weighing data, affecting the accuracy of work such as product quality control and material metering. The prior art lacks a balance bracket that can efficiently integrate multiple components to comprehensively offset interference, and the present invention aims to solve this problem. Summary of the Invention

[0003] In view of the above technical problems in the related art, the present invention provides a balance bracket for improving weighing accuracy and its application method, which can solve the above problems.

[0004] To achieve the above technical objectives, the technical solution of the present invention is realized as follows: A balance bracket for improving weighing accuracy includes a fixed base fixedly connected to a desktop. A linear slide rail is fixedly connected to the fixed base. A slide table is slidably connected to the linear slide rail. A slider is fixedly connected to the slide table. The output end of a stepping push rod motor is fixedly connected to the bottom end of the slider. A support arm is fixedly connected to the upper end of the slider. The support arm supports a blanking bracket through a silica gel pad.

[0005] Further, the fixed base is of a C-shaped structure. At the bottom of the C-shaped groove of the fixed base, there is a C-shaped connecting support block. On the left and right sides of the upper surface of the connecting support block, connection holes one are symmetrically opened. On the bottom surface of the C-shaped avoidance space in the middle of the connecting support block, a connection hole two is opened. On the bottom surface of the C-shaped groove, a positioning groove is opened, and a connection hole three is opened in the positioning groove.

[0006] Further, the linear slide rail is installed in the positioning groove, and a connection hole four adapted to the connection hole three is provided on the linear slide rail.

[0007] Further, a connection hole five is provided at the lower part of the front side of the slider. A connection hole six adapted to the connection hole five is provided on the slide table. A connection hole seven is provided at the top of the slider. A connection hole eight adapted to the connection hole seven is provided on the support arm. A connection hole eleven is opened in the middle of the front side of the slider.

[0008] Further, the stepping push-rod motor is supported on the connecting support block. A second connecting head is provided at the bottom end of the stepping push-rod motor, and a first connecting head is provided at the head of the output end of the stepping push-rod motor. A ninth connecting hole adapted to the second connecting hole is provided on the second connecting head, and a tenth connecting hole adapted to the eleventh connecting hole is provided on the first connecting head.

[0009] Further, the support arm includes a square support body. A strip-shaped arm plate is connected to one side of the square support body. The eighth connecting hole is located at the end of the arm plate, and the silica gel pads are located at the four corners of the square support body.

[0010] Further, one end of the blanking support passes through the square support body and is supported on the silica gel pad. The blanking support is a hollow box-shaped structure.

[0011] An application method of a balance support for improving weighing accuracy: Place the weighing scale under the blanking support. When the robotic arm carries the material to be weighed close to the blanking support, the stepping push-rod motor adjusts the support arm quickly according to the preset program, controls the support arm and the blanking support to be in the best receiving position. The robotic arm places the material to be weighed stably in the blanking support. The silica gel pad immediately buffers the impact force, and then the stepping push-rod motor slowly drops. As the blanking support is stably placed on the weighing scale, after receiving the stable weighing data from the weighing scale, finally, an accurate weighing result is output.

[0012] Further, the robotic arm, the stepping push-rod motor and the weighing scale are all electrically connected to the control system.

[0013] Further, when the weighing scale is weighing, the control system feeds back the real-time weighing mass through the weighing scale. After a delay, if the weighing mass data still fluctuates greatly, it is judged that there is a slight deviation of the weighing frame caused by vibration or external force. After the blanking support is lifted again, the signal of the stepping push-rod motor is adjusted to a smaller number of steps and placed again until the weighing mass data is stable, so as to maintain the reliability of weighing.

[0014] The beneficial effects of the present invention: Through the structural strength of the support arm and the shock absorption characteristics of the silica gel pad, the weighing balance support of the present application remains stable in a complex working environment, reduces weighing errors caused by external factors, and at the same time eliminates interference through the multi-effect combination of real-time dynamic adjustment based on the stepping push-rod motor, stable support of the support arm, and absorption of impact vibration by the buffer silica gel pad, ensuring that the weighing sensor obtains a real weight signal and greatly improving the accuracy. Description of the Drawings

[0015] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the embodiments. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0016] The following further details the present invention with reference to the drawings.

[0017] Figure 1 It is a schematic structural diagram of a balance bracket for improving weighing accuracy according to an embodiment of the present invention; Figure 2 It is an exploded view of a balance bracket for improving weighing accuracy according to an embodiment of the present invention; Figure 3 It is a schematic structural diagram of the connection of the fixed base, linear slide rail and slide table according to an embodiment of the present invention; Figure 4 It is a schematic structural diagram of the connection of the linear slide rail, slide table and slider according to an embodiment of the present invention; Figure 5 It is a schematic structural diagram of the support arm according to an embodiment of the present invention; Figure 6 It is a schematic structural diagram of a balance bracket for improving weighing accuracy according to an embodiment of the present invention when applied to weighing.

[0018] In the figure: 100, fixed base; 110, C-shaped groove; 111, positioning groove; 120, connecting support block; 121, connecting hole one; 122, C-shaped avoidance space; 123, connecting hole two; 200, linear slide rail; 210, connecting hole four; 300, slide table; 310, connecting hole six; 400, slider; 410, connecting hole five; 420, connecting hole seven; 430, connecting hole eleven; 500, stepping push rod motor; 510, connecting head one; 520, connecting head two; 600, support arm; 610, silicone pad; 620, connecting hole eight; 630, square support body; 640, arm plate; 700, blanking bracket; 800, weighing balance; 900, robotic arm. Specific embodiments

[0019] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the drawings in the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, rather than all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art belong to the scope of protection of the present invention.

[0020] As Figures 1-6As shown, a balance bracket for improving weighing accuracy is disclosed according to the present invention, including a fixed base 100, a support arm 600, a blanking bracket 700, a stepping push rod motor 500, a linear slide rail 200, a slide table 300, a slider 400 and a silicone pad 610. The fixed base 100 provides a stable foundation to ensure that the entire device does not shake during operation.

[0021] In a specific embodiment of the present invention, the fixed base 100 is fixed to the tabletop by screws. The stepping push rod motor 500 and the linear slide rail 200 are both connected to the fixed base 100. A slide table 300 is slidably connected to the linear slide rail 200, and the slider 400 is fixedly connected to the slide table 300. The top end of the slider 400 is connected to the support arm 600.

[0022] In a specific embodiment of the present invention, the support arm 600 is made of a high-strength and lightweight material (aerospace aluminum alloy), which has excellent rigidity and toughness to ensure the stable support of the weighing frame. Silicone pads 610 are provided at the four corners of its square support body 630 to support the blanking bracket 700. Utilizing the elastic properties of silicone, it buffers the impact force when an object is placed, avoids instantaneous overload of the weighing sensor, and at the same time absorbs the vibration energy transmitted by the movement of the robotic arm, reducing the impact of vibration on weighing accuracy. The surface of the silicone pad 610 is treated to have appropriate friction to prevent the object from sliding and further stabilize the weighing process. One end of the support arm 600 is connected to the slider 400 to drive the blanking bracket 700 to rise and fall.

[0023] In a specific embodiment of the present invention, the stepping push rod motor 500 is embedded in the C-shaped groove 110 and supported on the connecting support block 120. By receiving instructions from the control system, it precisely controls the telescopic amount of the support arm 600. When the robotic arm 900 approaches, it pre-adjusts the support arm 600 to an ideal position to avoid collision. When the weighing balance 800 is weighing, the control system receives the real-time weighing mass feedback from the weighing balance 800. After a delay, if the weighing mass data still fluctuates greatly, it is judged that there is a small deviation of the weighing frame caused by vibration, external force, etc. After the blanking bracket 700 is lifted again, the signal of the stepping push rod motor 500 is adjusted to a smaller number of steps, and the placement is carried out again until the weighing mass data is stable, so as to maintain the reliability of weighing.

[0024] In a specific embodiment of the present invention, the blanking bracket 700 is made of a high-strength and lightweight material (aerospace aluminum alloy) and is used to place the material box.

[0025] When the balance bracket of the present invention is specifically connected, first place the linear slide rail 200 into the positioning groove 111, align the fourth connecting hole 210 with the third connecting hole, and then connect them with a countersunk head bolt. Then align the sixth connecting hole 310 with the fifth connecting hole 410 and connect them with a countersunk head bolt. Next, place the lower end of the stepping push rod motor 500 on the connecting support block 120, making the second connecting hole 123 align with the ninth connecting hole, and at the same time, the eleventh connecting hole 430 align with the tenth connecting hole, and then connect them with a countersunk head bolt. Finally, align the first connecting hole 121 with the twelfth connecting hole on the tabletop and connect them with screws. Then align the seventh connecting hole 420 with the eighth connecting hole 620 and connect them with screws.

[0026] When the balance bracket of the present invention is specifically applied, place the weighing scale 800 below the blanking bracket 700. When the robotic arm 900 carries the material to be weighed and approaches the blanking bracket 700, the stepping push rod motor 500 adjusts the support arm 600 quickly according to the preset program, controls the support arm 600 and the blanking bracket 700 to be in the best receiving position. The robotic arm 900 places the material to be weighed stably in the blanking bracket 700, and the silica gel pad 610 buffers the impact force immediately. Then the stepping push rod motor 500 slowly descends. As the blanking bracket 700 is stably placed on the weighing scale 800, after receiving the stable weighing data from the weighing scale 800, finally output an accurate weighing result for subsequent operations (such as quality determination, material distribution).

[0027] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A balance bracket for improving weighing accuracy, characterized in that, It includes a fixed base (100) fixedly connected to the desktop. A linear slide rail (200) is fixedly connected to the fixed base (100). A slide table (300) is slidably connected to the linear slide rail (200). A slider (400) is fixedly connected to the slide table (300). The output end of a stepping push rod motor (500) is fixedly connected to the bottom end of the slider (400). A support arm (600) is fixedly connected to the upper end of the slider (400). The support arm (600) supports a blanking bracket (700) through a silica gel pad (610).

2. The balance bracket for improving weighing accuracy according to claim 1, characterized in that, The fixed base (100) is of a C-shaped structure. A C-shaped connection support block (120) is provided at the bottom of the C-shaped groove (110) of the fixed base (100). Connection holes one (121) are symmetrically opened on the left and right sides of the upper end face of the connection support block (120). A connection hole two (123) is opened on the bottom surface of the C-shaped avoidance space (122) in the middle of the connection support block (120). A positioning groove (111) is opened on the groove bottom surface of the C-shaped groove (110). A connection hole three is opened in the positioning groove (111).

3. The balance bracket for improving weighing accuracy according to claim 2, characterized in that, The linear slide rail (200) is installed in the positioning groove (111). A connection hole four (210) adapted to the connection hole three is provided on the linear slide rail (200).

4. The balance bracket for improving weighing accuracy according to claim 2, characterized in that, A connection hole five (410) is provided at the lower part of the front side of the slider (400). A connection hole six (310) adapted to the connection hole five (410) is provided on the slide table (300). A connection hole seven (420) is provided at the top end of the slider (400). A connection hole eight (620) adapted to the connection hole seven (420) is provided on the support arm (600). A connection hole eleven (430) is opened in the middle of the front side of the slider (400).

5. The balance bracket for improving weighing accuracy according to claim 4, characterized in that The stepping push rod motor (500) is supported on the connection support block (120). A connection head two (520) is provided at the bottom end of the stepping push rod motor (500). A connection head one (510) is provided at the head of the output end of the stepping push rod motor (500). A connection hole nine adapted to the connection hole two (123) is provided on the connection head two (520). A connection hole ten adapted to the connection hole eleven (430) is opened on the connection head one (510).

6. The balance bracket for improving weighing accuracy according to claim 4, wherein The support arm (600) includes a square frame support body (630). A strip-shaped arm plate (640) is connected to one side of the square frame support body (630). The connection hole eight (620) is located at the end of the arm plate (640). The silica gel pads (610) are located at the four corners of the square frame support body (630).

7. The balance bracket for improving weighing accuracy according to claim 6, characterized in that, One end of the blanking bracket (700) passes through the square frame support body (630) and is supported on the silica gel pad (610). The blanking bracket (700) is a hollow box-shaped structure.

8. A method for applying a balance bracket for improving weighing accuracy according to any one of claims 1 to 7, characterized in that, Place the weighing scale (800) under the blanking support (700). When the robotic arm (900) carries the material to be weighed and approaches the blanking support (700), the stepping push rod motor (500) adjusts the support arm (600) quickly according to the preset program, controls the support arm (600) and the blanking support (700) to be in the best receiving position. The robotic arm (900) places the material to be weighed steadily into the blanking support (700), and the silica gel pad (610) buffers the impact force immediately. Then the stepping push rod motor (500) drops slowly. As the blanking support (700) is placed steadily on the weighing scale (800), after receiving the stable weighing data from the weighing scale (800), finally, an accurate weighing result is output.

9. The application method of a balance bracket for improving weighing accuracy according to claim 8, characterized in that, The robotic arm (900), the stepping push rod motor (500) and the weighing scale (800) are all electrically connected to the control system.

10. The application method of a balance bracket for improving weighing accuracy according to claim 9, characterized in that, When the weighing scale (800) is weighing, the control system receives the real-time weighing mass feedback through the weighing scale (800). After a delay, if the weighing mass data still fluctuates greatly, it is judged that there is a slight deviation of the weighing frame caused by vibration or external force. After the blanking support (700) is lifted again, the signal of the stepping push rod motor (500) is adjusted to a smaller number of steps, and the placement is carried out again until the weighing mass data is stable, so as to maintain the reliability of weighing.

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