Vision-based detection assembly, electronic scale flatness detection device and electronic scale

Abstract

The invention provides a vision-based detection assembly, an electronic scale flatness detection device and an electronic scale, and belongs to the technical field of flatness detection. A vision-based detection assembly comprises a detection table used for placing an electronic scale, and further comprises an electric push rod, the electric push rod is fixedly arranged on the detection table, and a top plate is fixedly arranged at the telescopic end of the electric push rod; the rotating part is fixedly connected with the top plate through a connecting rod, and a pressure detection assembly used for detecting the flatness of the bearing surface of the electronic scale is arranged on the rotating part; the rotating part is provided with a displacement assembly used for driving the pressure detection assembly to move on the bearing surface of the electronic scale and a distance adjusting assembly used for adjusting the working range of the displacement assembly. Through composite track detection and self-adaptive structural design, the detection coverage rate of the bearing surface of the electronic scale is improved, the problems of efficiency, precision and universality of flatness detection of the electronic scale are systematically solved, and the production quality and production efficiency of the electronic scale are ensured.

Description

Technical Field

[0001] This invention relates to the field of flatness detection technology, specifically to a vision-based detection component, an electronic scale flatness detection device, and an electronic scale. Background Technology

[0002] Flatness refers to the deviation of the macroscopic unevenness of a substrate from an ideal plane. The tolerance zone is the area between two parallel planes with a distance of tolerance value t. Flatness belongs to the form error category of geometrical errors. Flatness measurement refers to the amount of variation of the actual surface being measured from its ideal plane. An electronic scale is a type of weighing instrument that uses Hooke's Law or the lever balance principle of forces to determine the mass of an object. Electronic scales typically have a support plate to support the weight of the object being measured. The flatness of the support plate is usually tested using a point-by-point method; if the tested points pass the test, the flatness of the electronic scale's support plate is considered acceptable.

[0003] While point-based testing can detect the flatness of electronic scales, it requires multiple manual adjustments of the test points during the testing process, reducing testing efficiency. Furthermore, because the area involved in the test points is small, even if multiple points are tested, there may still be cases where the test is not completed, leading to test errors and affecting the accuracy of the measurement results. Summary of the Invention

[0004] The purpose of this invention is to solve the problems existing in the prior art, and to propose a vision-based detection component, an electronic scale flatness detection device, and an electronic scale.

[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: A vision-based inspection component includes an inspection platform for placing an electronic scale, and further includes: An electric push rod is fixedly mounted on a testing platform, and a top plate is fixedly mounted on the telescopic end of the electric push rod. The rotating part is fixedly connected to the top plate via a connecting rod, and a pressure detection component for detecting the flatness of the load-bearing surface of the electronic scale is provided on the rotating part; The rotating part is provided with a displacement component for driving the pressure detection component to move on the load-bearing surface of the electronic scale, and an adjustment component for adjusting the working range of the displacement component.

[0006] Preferably, the displacement assembly includes a mounting plate fixed to the top plate via a connecting rod, a drive motor fixed on the mounting plate, a rotating rod connected to the output shaft of the drive motor, and a swing frame connected to the rotating rod, wherein the pressure detection assembly is mounted on the swing frame.

[0007] Preferably, the swing frame includes a connecting seat fixedly connected to the rotating rod, a connecting frame disposed on the connecting seat, a reciprocating screw rotatably connected to the connecting frame, and a sleeve threadedly connected to the reciprocating screw, wherein the pressure detection component is disposed on the sleeve.

[0008] Preferably, the axial length of the reciprocating lead screw is greater than or equal to half the maximum distance of the electronic scale's load-bearing surface.

[0009] Preferably, the pressure detection assembly includes a U-shaped plate fixed to the bottom of the sleeve, a slide rod slidably connected to the U-shaped plate, a ball bearing disposed at the bottom of the slide rod, a fixed plate and a push plate fixed on the slide rod, an elastic element sleeved on the outside of the slide rod and connected at both ends to the bottom of the U-shaped plate and the top of the fixed plate respectively, and a pressure sensor fixed to the bottom of the U-shaped plate, wherein the push plate and the pressure sensor move against each other.

[0010] Preferably, the adjusting assembly includes an L-shaped plate fixedly connected to the connecting seat, an elastic telescopic rod rotatably connected to the L-shaped plate, a positioning rod disposed at the end of the connecting frame, and a rotating roller sleeved on the outside of the positioning rod. The end of the elastic telescopic rod away from the L-shaped plate is fixedly connected to a reciprocating screw. The connecting frame is slidably connected to the connecting seat, and the rotating roller moves against the outer wall of the electronic scale.

[0011] Preferably, a transmission rod is rotatably connected to the L-shaped plate, a driven gear and a main bevel gear are fixedly mounted on the transmission rod, a fixed gear that meshes with the driven gear is fixedly mounted on the mounting plate, and a secondary bevel gear that meshes with the main bevel gear is fixedly mounted on the elastic telescopic rod.

[0012] This invention also discloses an electronic scale flatness detection device, including the aforementioned vision-based detection component, and further including support plates symmetrically arranged on both sides of the detection platform. A bidirectional screw is rotatably connected between the two support plates, and both ends of the bidirectional screw are threadedly connected to nut seats. Each nut seat is provided with a clamping plate that moves against the electronic scale. Preferably, a level is fixed on both the horizontal and vertical sides of the top surface of the testing platform to detect the horizontal and vertical levelness of the testing platform, respectively. An adjusting screw is threadedly connected to each corner of the testing platform, and a knob and a base plate are respectively provided on the top and bottom of the adjusting screw.

[0013] The present invention also discloses an electronic scale applicable to the aforementioned electronic scale flatness detection device, comprising a weighing body placed on a detection platform and a weighing platform disposed on top of the weighing body, wherein the ball bearing at the bottom of the slide rod moves against the load-bearing surface of the weighing platform, and the rotating roller moves against the side wall of the weighing platform.

[0014] As can be seen from the above technical solutions, the present invention has the following beneficial effects: 1. In this invention, the detection coverage of the load-bearing surface of the electronic scale is improved by combining circumferential rotation with radial displacement, which solves the problems of small detection coverage area and poor detection accuracy of traditional point detection. It eliminates the need for staff to frequently adjust the test points, thereby ensuring the production quality and efficiency of the electronic scale.

[0015] 2. In this invention, the drive motor starts and drives the rotating rod to rotate, causing the swing frame to make circular motion around the rotating rod as the center. The pressure detection component rotates with the swing frame, thereby performing circumferential detection on the load-bearing surface of the electronic scale. There is no need for manual adjustment of the detection points, realizing multi-point measurement of the load-bearing surface of the electronic scale and improving the accuracy of the detection results.

[0016] 3. In this invention, when the pressure detection component moves in a circular motion around the rotating rod, the fixed gear meshes with the driven gear during rotation, driving the transmission rod to rotate. The main bevel gear drives the secondary bevel gear, causing the elastic telescopic rod to rotate and driving the reciprocating screw to rotate. The sleeve moves along the axial direction of the reciprocating screw, and the pressure detection component completes the spiral trajectory scan. The pressure detection component scans the load-bearing surface with a spiral path, achieving full area coverage. This improves the integrity of the detection compared to traditional inspection methods. Through mechanical adaptive structure and motion transmission chain optimization, the comprehensiveness of the detection is guaranteed.

[0017] 4. In this invention, when the swing frame rotates around the rotating rod as the center, the connecting frame can slide relative to the connecting seat, the elastic telescopic rod automatically adjusts its length, and the rotating roller fits against the side wall of the weighing platform, ensuring that the scanning range covers the edge area. It can adapt to weighing platforms of different shapes such as round and square, while avoiding the pressure detection component from exceeding the weighing platform, thereby ensuring the accuracy of the flatness detection results.

[0018] 5. In this invention, after the ball contacts the load-bearing surface, the slide bar moves upward to compress the elastic element, and the push plate triggers the pressure sensor. As the pressure detection component detects different positions on the weighing platform, when the load-bearing surface is uneven, the compression of the elastic element changes, causing the pressure value of the pressure sensor to fluctuate, thereby effectively measuring the flatness of the electronic scale. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of the present invention. Figure 1 ; Figure 2 This is a schematic diagram of the overall structure of the present invention. Figure 2 ; Figure 3 This is a schematic diagram of the overall structure of the present invention. Figure 3 ; Figure 4 This is a schematic diagram of the detection station of the present invention; Figure 5 This is a schematic diagram of the structure of the pressure detection component of the present invention when detecting an electronic scale; Figure 6 This is a schematic diagram of the rotating part of the present invention. Figure 1 ; Figure 7 This is a schematic diagram of the rotating part of the present invention. Figure 2 ; Figure 8 This is a cross-sectional structural diagram of the mounting plate of the present invention. Figure 9 This is a schematic diagram of the external structure of the sleeve of the present invention; Figure 10 This is a cross-sectional structural diagram of the pressure detection component of the present invention; Figure 11 This is a schematic diagram of the structure of the electronic scale of the present invention.

[0020] In the diagram: 1. Testing table; 2. Electric push rod; 3. Top plate; 4. Rotating part; 5. Mounting plate; 501. Drive motor; 502. Rotating rod; 503. Swing frame; 5031. Connecting seat; 5032. Connecting frame; 5033. Reciprocating lead screw; 5034. Sleeve; 6. U-shaped plate; 601. Slide rod; 602. Ball bearing; 603. Fixing plate; 604. Push plate; 605. Elastic element; 606. Pressure sensor 7. L-shaped plate; 701. Elastic telescopic rod; 702. Positioning rod; 703. Rotating roller; 8. Transmission rod; 801. Driven gear; 802. Main bevel gear; 803. Fixed gear; 804. Secondary bevel gear; 9. Support plate; 901. Double-acting screw; 902. Nut seat; 903. Clamping plate; 10. Level; 11. Adjusting screw; 111. Knob; 112. Base plate; 12. Weighing body; 121. Weighing platform. Detailed Implementation

[0021] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0022] In the description of this invention, it should be noted that the terms "upper," "lower," "inner," "outer," "top / bottom," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0023] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "sleeved / connected," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0024] To achieve the above objectives, the embodiments of the present invention adopt the following technical solutions: Reference Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 A vision-based detection component includes a detection platform 1 for placing an electronic scale, which is used to fix the electronic scale and ensure its stable position during the detection process. It also includes an electric push rod 2 and a rotating part 4. The electric push rod 2 is fixed on the detection platform 1, and a top plate 3 is fixed to its telescopic end for controlling the overall lifting and lowering of the pressure detection component to adapt to different heights of the electronic scale's load-bearing surface. The rotating part 4 is fixedly connected to the top plate 3 via a connecting rod and can lift and lower synchronously with the electric push rod 2. A pressure detection component for detecting the flatness of the electronic scale's load-bearing surface is installed on the rotating part 4. The rotating part 4 also includes a displacement component for driving the pressure detection component to move on the electronic scale's load-bearing surface and an adjustment component for adjusting the working range of the displacement component, enabling multi-degree-of-freedom movement of the pressure detection component. Specifically, the electronic scale is placed on the testing platform 1. After positioning the electronic scale, the electric push rod 2 is retracted, driving the rotating part 4 to move downwards until the pressure detection component contacts the load-bearing surface. The initial reference value detected by the pressure detection component at this time is recorded. Then, the rotating part 4 is controlled to move, causing the pressure detection component to perform a combined rotational and axial displacement action, which comprehensively detects the load-bearing surface of the electronic scale, eliminating blind spots in manual inspection. This solves the problems of small coverage area and poor detection accuracy of traditional point detection. The adaptive distance adjustment design can ensure that the pressure detection component fully covers the edge area of ​​the load-bearing surface, solving the problem of missed detection at the edges of irregularly shaped load-bearing platforms such as square and round ones. When the load-bearing surface is displaced, the pressure detection component converts the flatness deviation into a pressure change signal. If the pressure change value exceeds the specified value, it can be determined that the flatness of the electronic scale's load-bearing surface does not meet the production requirements, thus ensuring the production quality and efficiency of the electronic scale.

[0025] Reference Figure 1 , Figure 2 , Figure 3 , Figure 5 , Figure 6 , Figure 7 , Figure 8 and Figure 9 As a preferred technical solution in this embodiment, the displacement assembly includes a mounting plate 5 fixedly connected to the top plate 3 via a connecting rod, a drive motor 501 fixedly mounted on the mounting plate 5, a rotating rod 502 connected to the output shaft of the drive motor 501, and a swing frame 503 connected to the rotating rod 502. The pressure detection assembly is mounted on the swing frame 503. The mounting plate 5 is rigidly connected to the top plate 3 via a connecting rod, serving as the mounting base for the displacement assembly and ensuring the overall structural stability. The drive motor 501 is a stepper motor or a servo motor, which drives the movement of subsequent components by precisely controlling the rotation angle and speed of the output shaft. Specifically, the drive motor 501 starts, driving the rotating rod 502 to rotate, causing the swing frame 503 to move in a circle around the rotating rod 502. The pressure detection component rotates with the swing frame 503, thereby performing circumferential detection on the load-bearing surface of the electronic scale without the need for manual adjustment of the detection points. It should be noted that the swing frame 503 includes a connecting seat 5031 fixedly connected to the rotating rod 502, a connecting frame 5032 set on the connecting seat 5031, a reciprocating screw 5033 rotatably connected to the connecting frame 5032, and a sleeve 5034 threadedly connected to the reciprocating screw 5033. The pressure detection component is set on the sleeve 5034. When the pressure detection component moves in a circular motion around the rotating rod 502, the reciprocating screw 5033 rotates, and the sleeve 5034 drives the pressure detection component to move along the axial direction of the reciprocating screw 5033, thereby forming a spiral trajectory scanning path for the pressure detection component, which can comprehensively detect the load-bearing surface of the electronic scale and improve the accuracy of the flatness detection of the electronic scale. The length of the 5033 reciprocating screw is greater than or equal to 50% of the maximum distance of the load-bearing surface. Combined with the spiral scanning path, it eliminates blind spots in manual inspection (especially edge areas) and achieves full coverage of the load-bearing surface.

[0026] Reference Figure 1 , Figure 2 , Figure 3 , Figure 6 , Figure 7 , Figure 9 and Figure 10As a preferred technical solution in this embodiment, the pressure detection assembly includes a U-shaped plate 6 fixed to the bottom of the sleeve 5034, a slide rod 601 slidably connected to the U-shaped plate 6, a ball bearing 602 disposed at the bottom of the slide rod 601, a fixing plate 603 and a push plate 604 fixed to the slide rod 601, an elastic element 605 sleeved on the outside of the slide rod 601 and connected at both ends to the bottom of the U-shaped plate 6 and the top of the fixing plate 603 respectively, and a pressure sensor 606 fixed to the bottom of the U-shaped plate 6. The push plate 604 and the pressure sensor 606 move against each other. The U-shaped plate 6 serves as a support base for the pressure detection assembly, providing rigid mounting. The platform features a ball bearing 602 design that reduces frictional resistance between the pressure detection component and the load-bearing surface, enabling smooth movement and preventing scratches on the measured surface. The ball bearing 602 is made of ceramic or tungsten carbide to prevent wear. The elastic element 605 typically uses a coil spring or rubber washer to provide compressible elastic support, converting the uneven deformation of the load-bearing surface into linear displacement. The pre-compression design of the elastic element 605 ensures that the ball bearing 602 always conforms to the load-bearing surface, adapting to different height deviations. The push plate 604 moves against the pressure sensor 606, transmitting pressure signals. The pressure sensor 606 detects the pressure applied by the push plate 604 in real time. Specifically, the electric push rod 2 drives the sleeve 5034 to move down, the ball 602 contacts the load-bearing surface, the elastic element 605 is in a pre-compressed state, the push plate 604 applies pressure to the pressure sensor 606, the pressure sensor 606 records the initial reference value, and when the pressure detection component moves with the rotating part 4 on the surface of the load-bearing surface, the ball 602 moves up and down with the undulation of the load-bearing surface, causing the slide rod 601 to slide up and down. When the load-bearing surface protrudes: the ball bearing 602 pushes against the slide bar 601, the elastic element 605 is further compressed, and the push plate 604 increases the squeezing force on the pressure sensor 606; When the load-bearing surface is concave: the elastic element 605 rebounds, the slide bar 601 moves down, and the pressure of the push plate 604 on the pressure sensor 606 decreases; The pressure sensor 606 outputs an electrical signal in real time, and the fluctuation value reflects the flatness deviation.

[0027] Reference Figure 1 , Figure 2 , Figure 3 , Figure 5 , Figure 6 , Figure 7 , Figure 8 and Figure 9As a preferred technical solution in this embodiment, the adjusting assembly includes an L-shaped plate 7 fixedly connected to the connecting seat 5031, an elastic telescopic rod 701 rotatably connected to the L-shaped plate 7, a positioning rod 702 disposed at the end of the connecting frame 5032, and a rotating roller 703 sleeved on the outside of the positioning rod 702. One end of the elastic telescopic rod 701 away from the L-shaped plate 7 is fixedly connected to the reciprocating screw 5033, and the other end of the elastic telescopic rod 701 is rotatably connected to the L-shaped plate 7, and fixed to the reciprocating screw 5033, thus possessing axial elastic telescopic capability. Capabilities include a built-in spring structure that automatically adapts to changes in the curvature of the sidewalls of electronic scales of different sizes; the connecting frame 5032 and the connecting seat 5031 are slidably connected, and the rotating roller 703 rolls against the outer sidewall of the electronic scale to reduce friction; the L-shaped plate 7 serves as a rigid support base for the adjustment assembly, transmitting the torque of the rotating part 4 to ensure motion stability; when the electronic scale is round or irregularly shaped, the rotating roller 703 is pushed by the sidewall pressure to slide the connecting frame 5032, and the elastic telescopic rod 701 automatically extends and retracts, so that the scanning trajectory matches the boundary of the load-bearing surface in real time; Furthermore, a transmission rod 8 is rotatably connected to the L-shaped plate 7. A driven gear 801 and a main bevel gear 802 are fixed on the transmission rod 8. A fixed gear 803 that meshes with the driven gear 801 is fixed on the mounting plate 5. A secondary bevel gear 804 that meshes with the main bevel gear 802 is fixed on the elastic telescopic rod 701. The driven gear 801 meshes with the fixed gear 803 on the mounting plate 5, converting the circular motion of the rotating part 4 into the rotation of the transmission rod 8. The main bevel gear 802 meshes with the secondary bevel gear 804, converting the rotational motion of the transmission rod 8 into the axial rotation of the elastic telescopic rod 701, driving the reciprocating screw 5033 to rotate. Specifically, the electric push rod 2 retracts, causing the rotating part 4 to move downwards. The connecting frame 5032 is manually pulled outwards, causing the rotating roller 703 to leave the load-bearing surface and avoid downward interference. The elastic telescopic rod 701 extends, leaving space for adjustment. When the ball bearing 602 contacts the load-bearing surface, the connecting frame 5032 is released, the elastic telescopic rod 701 rebounds, pushing the rotating roller 703 to fit against the side wall of the electronic scale, while simultaneously driving the end of the reciprocating screw 5033 to return to the starting position at the edge of the load-bearing surface. The drive motor 501 starts, driving the swing frame 503 to rotate. The pressure detection component moves in a circle around the rotating rod 502. During the rotation, the fixed gear 803 meshes with the driven gear 801, driving the transmission rod 8 to rotate. The main bevel gear 802 drives the secondary bevel gear 804, causing the elastic telescopic rod 701 to rotate and driving the reciprocating screw 5033 to rotate. The sleeve 5034 moves axially along the reciprocating screw 5033. The pressure detection component completes the spiral trajectory scan. The pressure detection component scans the load-bearing surface with a spiral path, achieving full area coverage. This improves the integrity of the detection compared to traditional inspection methods. Through mechanical adaptive structure and motion transmission chain optimization, it solves the problems of edge blind spots, multi-shape compatibility, and low efficiency in the flatness detection of electronic scales.

[0028] Reference Figure 1 , Figure 2 , Figure 3 and Figure 4 As a preferred technical solution in this embodiment, the present invention also discloses an electronic scale flatness detection device, including the aforementioned vision-based detection component, and further including support plates 9 symmetrically arranged on both sides of the detection platform 1. The support plates 9 serve as the support base of the clamping mechanism, and are made of rigid material to ensure load-bearing stability. The height is adjustable to adapt to electronic scale bases of different thicknesses. A bidirectional screw 901 is rotatably connected between the two support plates 9. Both ends of the bidirectional screw 901 are threadedly connected to nut seats 902. The bidirectional screw 901 is rotated by a manual wheel or motor to realize the relative movement of the two nut seats 902 on the same bidirectional screw 901. Each nut seat 902 is provided with a clamping plate 903 that abuts against the movement of the electronic scale. The surface of the clamping plate 903 is covered with an elastic material, such as a rubber pad, to increase friction and avoid scratching the electronic scale. When the bidirectional screw 901 rotates, the two end nut seats 902 move synchronously towards or away from each other, driving the clamping plate 903 to apply a balanced clamping force to the electronic scale, avoiding deviation caused by force on one side; Furthermore, a level 10 is fixed on both the horizontal and vertical sides of the top surface of the testing platform 1. It typically uses a bubble-type or electronic tilt sensor to provide real-time feedback on the tilt angle of the testing platform along the X / Y axes, ensuring that the initial levelness of the reference surface of the testing platform 1 meets the testing requirements. An adjusting screw 11 is threadedly connected to each corner of the testing platform 1. The top and bottom of the adjusting screw 11 are respectively equipped with a knob 111 and a base plate 112. Each adjusting screw 11 can be rotated independently, and the vertical lifting displacement achieves precise compensation of the height of the four corners of the testing platform 1, providing a highly reliable horizontal reference guarantee for the levelness detection of the electronic scale.

[0029] Reference Figure 5 and Figure 11 As a preferred technical solution in this embodiment, the present invention also discloses an electronic scale applicable to the aforementioned electronic scale flatness detection device, including a weighing body 12 placed on a detection platform 1 and a weighing platform 121 disposed on the top of the weighing body 12. The ball bearing 602 at the bottom of the slide bar 601 moves against the load-bearing surface of the weighing platform 121, and the rotating roller 703 moves against the side wall of the weighing platform 121.

[0030] Working steps: Before testing the weighing platform 121 of the electronic scale, observe whether the testing platform 1 is placed horizontally using the level 10 on the top surface of the testing platform 1. If it is not placed horizontally, the operator adjusts the height of each position of the testing platform 1 by rotating the adjusting screw 11 to make the testing platform 1 horizontal. Then, place the electronic scale on the testing platform 1, and then rotate the double-acting screw 901 to bring the two nut seats 902 on the double-acting screw 901 closer to each other, thereby making the two clamping plates 903 clamp the weighing body 12 of the electronic scale to prevent the electronic scale from shaking during the flatness test and affecting the test results. Subsequently, the electric push rod 2 retracts, causing the top plate 3 to move downwards. The rotating part 4 then moves the pressure detection assembly downwards simultaneously. The operator can pull the connecting frame 5032 of the swing frame 503, causing the connecting frame 5032 to shift relative to the connecting seat 5031. This stretches the elastic telescopic rod 701, preventing the rotating roller 703 from contacting the weighing platform 121 of the electronic scale when the rotating part 4 moves downwards. As the electric push rod 2 continues to retract, until the ball bearing 602 at the bottom of the slide rod 601 contacts the upper load-bearing surface of the weighing platform 121, the elastic element 605 is compressed. The value detected by the pressure sensor 606 at this time is recorded. Then, the operator stops pulling the connecting frame 5032. The connecting frame 5032 and the reciprocating screw 5033 are reset under the pull of the elastic telescopic rod 701, causing the rotating roller 703 on the connecting frame 5032 to abut against the outer wall of the weighing platform 121. At this time, the end of the track groove of the reciprocating screw 5033 is located at the edge of the weighing platform 121, allowing the sleeve 5034 to drive the pressure detection component to move and move with the track groove of the reciprocating screw 5033 to the edge of the weighing platform 121, thereby enabling flatness detection at the edge of the weighing platform 121. By controlling the operation of the drive motor 501, the output shaft of the drive motor 501 drives the rotating rod 502 to rotate, and the rotating rod 502 drives the swing frame 503 to rotate, thereby causing the pressure to move. The force detection component can rotate around the rotating rod 502 to perform circumferential testing on the flatness of the upper surface of the weighing platform 121. During this process, the connecting frame 5032 can automatically shift relative to the connecting seat 5031 according to the shape of the weighing platform 121, such as circular or square. The elastic telescopic rod 701 can freely change, allowing the pressure detection component to adapt to weighing platforms 121 of different shapes. Furthermore, during the rotation of the connecting seat 5031, it drives the L-shaped plate 7 connected to it to shift. The driven gear 801 on the transmission rod 8 meshes with the fixed gear 803 on the mounting plate 5. The transmission rod 8 rotates within the L-shaped plate 7 and drives the main bevel gear 802 to mesh with the secondary bevel gear 804 on the elastic telescopic rod 701, thus enabling the secondary bevel gear 804 to mesh with the main bevel gear 802. The bevel gear 804 drives the elastic telescopic rod 701 and the reciprocating screw 5033 connected to the elastic telescopic rod 701 to rotate. The sleeve 5034 drives the pressure detection component to move axially along the reciprocating screw 5033, so that the pressure detection component can detect the circumference of the bearing surface of the weighing platform 121 while simultaneously detecting the lateral side. This allows the pressure detection component to detect each point on the bearing surface of the weighing platform 121. During this period, if the value detected by the pressure sensor 606 changes beyond the specified value, the flatness of the surface weighing platform 121 does not meet the requirements. If the value detected by the pressure sensor 606 does not change or the change is less than the specified value, the flatness of the surface weighing platform 121 meets the production requirements.

[0031] The accompanying drawings in this application are for illustrative purposes only. The dimensions and shapes of the components shown are not actual limitations but are merely schematic representations. In actual implementation, the components can be reasonably configured and adjusted according to specific needs and actual conditions.

[0032] The above-described embodiments are merely preferred embodiments of the present invention and are not intended to limit the scope of the present invention. Various modifications and improvements made by those skilled in the art to the technical solutions of the present invention without departing from the spirit of the present invention should fall within the protection scope defined by the claims of the present invention.

Claims

1. A vision-based detection component, comprising a detection platform (1) for placing an electronic scale, characterized in that, Also includes: Electric push rod (2), the electric push rod (2) is fixed on the testing table (1), and the telescopic end of the electric push rod (2) is fixed with a top plate (3). Rotating part (4), the rotating part (4) is fixedly connected to the top plate (3) by a connecting rod, and the rotating part (4) is provided with a pressure detection component for detecting the flatness of the load-bearing surface of the electronic scale; The rotating part (4) is provided with a displacement component for driving the pressure detection component to move on the load-bearing surface of the electronic scale and an adjustment component for adjusting the working range of the displacement component.

2. The vision-based detection component according to claim 1, characterized in that, The displacement assembly includes a mounting plate (5) fixed to the top plate (3) via a connecting rod, a drive motor (501) fixed on the mounting plate (5), a rotating rod (502) connected to the output shaft of the drive motor (501), and a swing frame (503) connected to the rotating rod (502). The pressure detection assembly is mounted on the swing frame (503).

3. The vision-based detection component according to claim 2, characterized in that, The swing frame (503) includes a connecting seat (5031) fixedly connected to the rotating rod (502), a connecting frame (5032) disposed on the connecting seat (5031), a reciprocating screw (5033) rotatably connected to the connecting frame (5032), and a sleeve (5034) threadedly connected to the reciprocating screw (5033). The pressure detection component is disposed on the sleeve (5034).

4. The vision-based detection component according to claim 3, characterized in that, The axial length of the reciprocating lead screw (5033) is greater than or equal to half of the maximum distance between the load-bearing surfaces of the electronic scale.

5. A vision-based detection component according to claim 4, characterized in that, The pressure detection assembly includes a U-shaped plate (6) fixed to the bottom of the sleeve (5034), a slide rod (601) slidably connected to the U-shaped plate (6), a ball bearing (602) set at the bottom of the slide rod (601), a fixing plate (603) and a push plate (604) fixed on the slide rod (601), an elastic element (605) sleeved on the outside of the slide rod (601) and connected at both ends to the bottom of the U-shaped plate (6) and the top of the fixing plate (603) respectively, and a pressure sensor (606) fixed to the bottom of the U-shaped plate (6). The push plate (604) and the pressure sensor (606) move against each other.

6. A vision-based detection component according to claim 5, characterized in that, The adjustable distance assembly includes an L-shaped plate (7) fixedly connected to the connecting seat (5031), an elastic telescopic rod (701) rotatably connected to the L-shaped plate (7), a positioning rod (702) disposed at the end of the connecting frame (5032), and a rotating roller (703) sleeved on the outside of the positioning rod (702). The end of the elastic telescopic rod (701) away from the L-shaped plate (7) is fixedly connected to the reciprocating screw (5033). The connecting frame (5032) is slidably connected to the connecting seat (5031). The rotating roller (703) moves against the outer wall of the electronic scale.

7. A vision-based detection component according to claim 6, characterized in that, A transmission rod (8) is rotatably connected to the L-shaped plate (7). A driven gear (801) and a main bevel gear (802) are fixed on the transmission rod (8). A fixed gear (803) that meshes with the driven gear (801) is fixed on the mounting plate (5). A secondary bevel gear (804) that meshes with the main bevel gear (802) is fixed on the elastic telescopic rod (701).

8. An electronic scale flatness detection device, comprising the vision-based detection component as described in claim 7, characterized in that, It also includes support plates (9) symmetrically arranged on both sides of the testing platform (1), and a bidirectional screw (901) is rotatably connected between the two support plates (9). Both ends of the bidirectional screw (901) are threaded with nut seats (902), and each nut seat (902) is provided with a clamping plate (903) that moves against the electronic scale.

9. The flatness detection device for an electronic scale according to claim 8, characterized in that, The test platform (1) is equipped with a level (10) on both the horizontal and vertical sides of its top surface, which is used to test the horizontal and vertical levelness of the test platform (1). The test platform (1) is threaded with an adjusting screw (11) at each corner. The top and bottom of the adjusting screw (11) are respectively provided with a knob (111) and a base plate (112).

10. An electronic scale, applicable to the flatness detection device for an electronic scale as described in claim 9, characterized in that, It includes a weighing body (12) placed on the testing platform (1) and a weighing platform (121) set on top of the weighing body (12). The ball (602) at the bottom of the slide bar (601) moves against the load-bearing surface of the weighing platform (121), and the rotating roller (703) moves against the side wall of the weighing platform (121).

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