Automatic detection device for unilateral bending of steel plate spring

Abstract

The invention belongs to the field of automobile steel plate springs, and particularly relates to an automatic detection device for unilateral bending of a steel plate spring. The detection device comprises a detection workbench, a middle positioning and clamping mechanism, a transmission point finding mechanism and a data detection processing mechanism. The steel plate spring unilateral bending automatic detection device depends on a fixed detection workbench, a transmission point finding mechanism is arranged on the upper surface of a horizontal detection workbench, a middle positioning and clamping mechanism is connected with the transmission point finding mechanism and moves depending on the transmission point finding mechanism, and a data detection and processing mechanism is arranged on a vertical detection workbench. According to the automatic detection device for the single-side bending of the steel plate spring, the steel plate spring is fixed through positioning and clamping, the movement transmission mechanism replaces a manual pushing point finding function, the position distance is accurately measured through the data detection mechanism, and then the accurate numerical value of the single-side bending of the steel plate spring is obtained through formula calculation. According to the invention, through automatic positioning, automatic transmission and accurate measurement, automatic detection of single-side bending of the steel plate spring is realized, and the device has the advantages of accurate measurement, time and labor saving, strong shape applicability, high detection efficiency and the like.

Description

Technical Field

[0001] The invention belongs to the field of automobile leaf springs, and in particular relates to an automatic detection device for unilateral bending of a leaf spring. Background Art

[0002] As an elastic element, automotive leaf springs are becoming more and more widely used in automotive suspension applications. With the widespread use and performance improvement of automobiles, the fatigue life requirements of leaf springs are also constantly increasing. As a result, the dimensional requirements for leaf spring-related parameters are becoming more and more precise, among which the requirements for leaf spring lateral bending are also becoming more and more strictly controlled.

[0003] The conventional lateral bending detection device currently used in China mainly measures the lateral bending of leaf springs through manual leveling and alignment, and uses a feeler gauge to measure the lateral bending of leaf springs. However, this measurement method has many problems: 1. The measurement accuracy is not high, and accurate lateral bending values ​​cannot be obtained; 2. The measurement results are limited and cannot reflect the unilateral lateral bending of leaf springs with complex structures; 3. The measurement results are inaccurate, and the measurement results only show the comprehensive lateral bending dimensions of the leaf springs on both sides, but the degree of unilateral lateral bending of the leaf springs on the front and back is not exactly the same. The measurement results cannot accurately reflect the actual unilateral lateral bending dimensions of the leaf springs; 4. The measurement efficiency is low, which seriously affects the smooth progress of the production process, the detection time is long, and the efficiency is low. Summary of the Invention

[0004] To accurately measure the actual unilateral deflection of leaf springs, this application provides an automatic unilateral deflection detection device for leaf springs. This device is suitable for detecting the unilateral deflection of single or assembled leaf springs of varying structures. This device addresses issues such as inaccurate unilateral deflection measurement and manual positioning, reduces manual operation errors, lowers labor intensity, and improves product testing efficiency.

[0005] In order to achieve the above-mentioned purpose, the present application provides an automatic detection device for unilateral lateral bending of a leaf spring, which is used to measure the unilateral lateral bending of different single leaf springs and leaf spring assemblies. The above-mentioned automatic detection device for unilateral lateral bending of a leaf spring includes a detection workbench, a central positioning and clamping mechanism, a transmission point finding mechanism, and a data detection and processing mechanism.

[0006] The detection workbench includes a vertical workbench and a horizontal workbench, which are used for positioning and installing the data detection and processing mechanism and the transmission point finding mechanism, so that when detecting the unilateral bending of the leaf spring, accurate positioning in the vertical and horizontal directions can be achieved.

[0007] The vertical workbench of the detection workbench is used for moving and positioning the movable sensor in the data detection and processing mechanism on the vertical workbench.

[0008] The horizontal workbench of the detection workbench is used for the installation and positioning of the transmission point-finding mechanism, so that the transmission point-finding mechanism can realize the horizontal transmission of the leaf spring on the horizontal workbench.

[0009] The central positioning and clamping mechanism includes a central positioning base and a clamping device, which is used for central positioning and clamping of the leaf spring to prevent the leaf spring from shaking due to mechanical transmission and thus affecting the measurement accuracy.

[0010] The central positioning base is fixedly connected to the vertical workbench through a horizontal hydraulic cylinder. The central positioning clamping base is groove-shaped and is used to position the middle part of the leaf spring. The central positioning base is divided into two types: horizontal base and double-beam base according to the structure of the leaf spring, and can be replaced according to different measurement objects. During measurement, the middle part of the leaf spring is positioned on the upper plane of the central positioning base.

[0011] The clamping device includes a clamping block, a transmission screw, and a handle. By rotating the handle clockwise, the screw drives the clamping block to approach the vertical plane of the middle positioning base, clamping the leaf spring from the middle position to avoid measurement errors caused by vibration.

[0012] The transmission point-finding mechanism includes a dual-guide rail mechanism and a hydraulic cylinder, which are used to drive the central positioning clamping mechanism and the leaf spring to move smoothly on the horizontal workbench. The dual-guide rail mechanism can improve the stability during the transmission process.

[0013] The double guide rails of the double guide rail mechanism are fixed above the horizontal workbench along the normal direction of the vertical workbench, and the double guide rail slider is fixed to the middle positioning base by bolt connection to adapt to the smooth horizontal movement of the leaf spring.

[0014] The hydraulic cylinder is fixed on the vertical workbench along the normal direction, and the end of the hydraulic cylinder is connected to the vertical surface of the middle positioning base with bolts. The middle positioning base is driven to move horizontally along the double guide rails through the expansion and contraction of the hydraulic cylinder, thereby enabling the leaf spring to move horizontally.

[0015] The data detection and processing mechanism includes a movable sensor, a distance sensor, and a data processor, which is used for data collection and simple data processing of the distance from the middle position of the leaf spring to the vertical workbench and the distance from the end measurement point of the leaf spring to the vertical workbench, thereby obtaining the unilateral bending size of the leaf spring.

[0016] The movable sensor includes a slider, a locking fixture, a pressure sensor, and a hexagon socket bolt; the slider is used to move and position the movable sensor on the vertical workbench, the pressure sensor is used to detect data on the end position of the leaf spring, the slider is linked to the pressure sensor through the locking fixture, and the hexagon socket bolt is used to connect the slider and the vertical workbench, thereby fixing the movable sensor on the vertical workbench, thereby improving the accuracy of the monitoring data.

[0017] The slider is movable on the vertical workbench, and the locking fixture is connected to the slider by an inner hexagonal bolt. A threaded hole is provided in the slider to cooperate with the inner hexagonal bolt. Loosening the inner hexagonal bolt can create a gap between the slider and the guide rail, so that the position of the slider can be adjusted to align with the end position of the leaf spring. After finding the appropriate position, the inner hexagonal bolt is tightened. At this time, the slider and the guide rail are tightly fitted, so that the positioning of the movable sensor on the vertical workbench can be achieved.

[0018] The locking fixture is connected to the slider via the hexagon socket bolt and is connected to the pressure sensor via an I-shaped slot. Locking fixtures of different thicknesses can be selected according to the size and shape of the leaf spring to adapt to the lateral bending measurement of different products.

[0019] The pressure sensor is stuck in the I-shaped groove of the locking fixture. During measurement, the end of the leaf spring contacts the pressure sensor and generates pressure. When the pressure reaches a specified value, the gap between the pressure sensor, the locking fixture, and the vertical workbench surface can be eliminated. At this time, the vertical distance between the end of the leaf spring and the vertical workbench can be obtained based on the sum of the thickness of the locking fixture and the height of the pressure sensor.

[0020] After the pressure sensor measures the pressure of a specified value, it transmits a signal to the hydraulic cylinder to stop the movement, at which time the precise positioning of the single-side bending measurement of the leaf spring is completed.

[0021] The distance sensor is used to detect the parallel distance between the vertical plane outside the middle positioning base and the vertical workbench. The sum of this parallel distance and the thickness of the side of the middle positioning base groove is the vertical distance from the middle of the leaf spring to the vertical workbench.

[0022] The data processor can obtain the lateral bending size of the single-sided leaf spring by performing a difference operation on the distance from the end of the leaf spring to the vertical workbench measured by the movable sensor and the distance from the middle position of the leaf spring to the vertical workbench.

[0023] Compared with the prior art, the present invention has the following advantages:

[0024] The present application provides a device suitable for detecting unilateral lateral bending of a leaf spring, comprising a detection workbench, a central positioning and clamping mechanism, a transmission and point-finding mechanism, and a data detection and processing mechanism. The detection workbench comprises a horizontal workbench and a vertical workbench for accurately positioning the leaf spring in the horizontal and vertical directions when detecting lateral bending. The central positioning and clamping mechanism comprises a central positioning base and a clamping device for centrally positioning and clamping the leaf spring. By rotating the handle clockwise, the lead screw drives the clamping block toward the vertical surface of the central positioning base, so that the vertical surface of the central positioning base and the vertical surfaces of the clamping block clamp the leaf spring. The central positioning base can be selected as a horizontal base or a double-beam base depending on the state of the detection object. The transmission and point-finding mechanism comprises a dual-guide rail mechanism and a hydraulic cylinder for horizontally moving the central positioning and clamping mechanism and the leaf spring. The data detection and processing mechanism comprises a movable sensor, a distance sensor, and a data processor for detecting the distance between the central position and the end of the leaf spring relative to the vertical workbench, and then obtaining the unilateral lateral bending dimension of the leaf spring through data processing. The movable sensor is positioned on a vertical work platform according to the shape and size of the leaf spring being tested. This allows for batch testing of identical products without changing the sensor's position, improving testing efficiency. Because this device detects unilateral deflection data, it can also compare the deflection shape of the leaf spring on both sides, enabling more accurate deflection testing. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 Shows a schematic structural diagram of three leaf spring lateral bending conditions provided by the embodiments of the present application;

[0026] Figure 2 The figure shows the overall structure of a device for automatically detecting unilateral bending of a leaf spring provided in an embodiment of the present application;

[0027] Figure 3 Shown Figure 2 A top view of the overall structure of a leaf spring unilateral bending automatic detection device provided in;

[0028] Figure 4 Shown Figure 2 Schematic diagram of the structure of the inspection workbench;

[0029] Figure 5 Shown Figure 2 Schematic diagram of the center-center positioning and clamping mechanism structure;

[0030] Figure 6 Shown Figure 2 Schematic diagram of the transmission point finding mechanism structure;

[0031] Figure 7 Shown Figure 2Schematic diagram of the movable sensor structure of the data detection and processing mechanism;

[0032] Figure 8 Shown Figure 7 Schematic diagram of the hexagon socket bolt structure in the movable sensor;

[0033] Figure 9 Shown Figure 2 Schematic diagram of the double-beam positioning base structure of the center-center positioning clamping mechanism;

[0034] Description of main component symbols:

[0035] 1-Leaf spring with lateral bending;

[0036] 2-Vertical workbench; 3-Horizontal workbench; 4-Central positioning base; 5-Clamping block; 6-Drive screw; 7-Handle; 8-Double guide rail; 9-Double guide rail slider; 10-Hydraulic cylinder; 11-Slider; 12-Locking fixture; 13-Pressure sensor; 14-Distance sensor; 15-Data processor; 16-Hexagon socket bolt; DETAILED DESCRIPTION

[0037] The following describes embodiments of the present invention in detail. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended only to explain the present invention and are not to be construed as limiting the present invention.

[0038] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "normal", "length", "width", "thickness", "up", "down", "front", "middle", "back", "vertical", "horizontal", "top", "bottom", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as limiting the present invention.

[0039] In the present invention, unless otherwise expressly specified or limited, terms such as "mounted," "connected," "connect," and "fixed" should be understood broadly. For example, they may refer to fixed or detachable connections, or integration; mechanical or electrical connections; direct or indirect connections through an intermediate medium; and internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0040] See also Figure 1 , showing schematic diagrams of three leaf spring structures with lateral bending, including top views of leaf springs with zero lateral bending, lateral bending in the same direction, and lateral bending in different directions. After the quenching process, the leaf spring is no longer strictly straight along its length, and lateral bending occurs at the ends. Due to assembly requirements, the lateral bending dimension of the leaf spring should not exceed a specific value. Therefore, in this embodiment, the middle and end portions of the leaf spring are the areas to be measured. In particular, the lateral bending directions and dimensions at both ends of the leaf spring are inconsistent, and the lateral bending dimensions at both ends affect the assembly of the leaf spring. Therefore, the lateral bending dimensions at both ends of the leaf spring need to be measured. Therefore, in this example, the lateral bending dimension of the leaf spring needs to be measured on one side.

[0041] In this embodiment, a schematic diagram of a leaf spring 1 to be measured is also provided. The leaf spring 1 is applied to the air suspension of a car. After the quenching process, the leaf spring 1 is arc-shaped, and the symmetry center line of the leaf spring 1 is located in the length direction of the leaf spring 1.

[0042] Please refer to Figure 2 and Figure 3 The automatic detection device for unilateral bending of leaf springs of this embodiment can be applied to the unilateral bending detection of leaf springs 1. Through one-time clamping and positioning, unilateral bending detection of batches of identical leaf springs 1 can be realized, thereby reducing manual operation errors, reducing labor intensity, and improving product detection efficiency.

[0043] In order to realize the detection of unilateral lateral bending of leaf spring 1, this embodiment provides an automatic detection device for unilateral lateral bending of leaf spring, including a detection workbench, a central positioning and clamping mechanism, a transmission and point finding mechanism, and a data detection and processing mechanism, and the central positioning and clamping mechanism, the transmission and point finding mechanism and the data detection and processing mechanism are all installed on the detection workbench.

[0044] Please refer to Figure 2 、 Figure 3 and Figure 4 The inspection workbench includes a vertical workbench 2 and a horizontal workbench 3. Figure 2 The transmission point-finding mechanism is located in the middle of the horizontal workbench 3 and is used for positioning and installing the transmission point-finding mechanism. The vertical workbench 2 is perpendicular to the horizontal workbench 3 and is used for positioning the data detection and processing mechanism.

[0045] In this embodiment, an "L"-shaped boss is provided in the middle of the horizontal workbench 3, and the short vertical surface of the "L"-shaped boss is provided on the side away from the vertical workbench 2, which is used for the positioning and installation of the transmission point finding mechanism; a number of guide rails are provided on the vertical workbench 2, which can realize the movement of the data detection and processing mechanism, and then realize the precise positioning of the unilateral side bending of the leaf spring 1 to avoid measurement errors.

[0046] Please refer to Figure 2 、 Figure 3 and Figure 5 The central positioning clamping mechanism includes a central positioning base 4 and a clamping device. Figure 5 The middle positioning base 4 is designed as a concave groove, and the clamping device is installed on the middle positioning base 4.

[0047] Please refer to Figure 2 、 Figure 3 、 Figure 5 and Figure 9 Specifically, the middle positioning base 4 can be divided into a horizontal positioning base and a double-beam positioning base according to the structural state of the leaf spring 1. If there is a middle straight section in the middle of the leaf spring 1, the horizontal positioning base is selected. If there is no middle straight section in the middle of the leaf spring 1, the double-beam positioning base is selected. For the leaf spring 1 without a middle straight section, the double-beam positioning base can lift the middle arc-shaped part of the leaf spring 1, so that the leaf spring 1 can be positioned more stably.

[0048] Please refer to Figure 2 、 Figure 3 and Figure 5 Specifically, the clamping device includes a clamping block 5, a transmission screw 6, and a handle 7. The clamping block 5, transmission screw 6, and handle 7 are connected in sequence along the normal direction of the vertical workbench 2. The clamping block 5 and handle 7 are connected to both sides of the vertical surface of the middle positioning base 4 away from the vertical workbench 2 through the transmission screw 6. The middle of the leaf spring 1 is clamped by the clamping block 5 and the two vertical surfaces of the middle positioning base 4.

[0049] In this embodiment, the middle positioning clamping mechanism is used to clamp the leaf spring 1, that is, when detecting unilateral lateral bending of the leaf spring, the middle part of the leaf spring 1 is placed horizontally on the upper plane of the middle positioning base 4, so that the symmetry center line of the leaf spring 1 is parallel to the symmetry center line of the middle positioning clamping mechanism, and the handle 7 is rotated clockwise, and the transmission screw 6 drives the clamping block 5 to approach the middle of the leaf spring 1 until the vertical surface of the clamping block 5 and the vertical surface of the middle positioning base 4 clamp the middle of the leaf spring 1, thereby achieving the clamping of the leaf spring 1.

[0050] Please refer to Figure 2 、 Figure 3 and Figure 6 The transmission point finding mechanism includes a double guide rail mechanism and a hydraulic cylinder 10. Figure 6 The transmission point finding mechanism and the central positioning clamping mechanism are both located in the middle of the horizontal workbench 3. One end of the double guide rail mechanism is fixed on the vertical workbench 2 along the normal direction of the vertical workbench 2, and the other end is fixed on the "L"-shaped boss on the horizontal workbench 3. The hydraulic cylinder 10 is embedded in the middle of the vertical workbench 2 and can support the movement of the central positioning clamping mechanism.

[0051] Please refer to Figure 2 、 Figure 3 and Figure 6Specifically, the dual guide rail mechanism includes a dual guide rail 8 and a dual guide rail slider 9. The dual guide rail slider 9 is fixedly connected to the bottom surface of the groove of the middle positioning base 4 by bolts. Two through holes are provided on the dual guide rail slider 9 and the dual guide rail 8 is connected to the dual guide rail slider 9 through the through holes, which is used for the dual guide rail slider 9 to move on the dual guide rail 8, thereby realizing the movement of the middle positioning clamping mechanism on the horizontal workbench 3.

[0052] In this embodiment, the transmission point finding mechanism is used to position the leaf spring 1. After the leaf spring 1 is clamped on the middle positioning clamping mechanism, power is provided by the hydraulic cylinder 10 to drive the middle positioning clamping mechanism to move on the double guide rails 8, thereby realizing the positioning of the leaf spring 1 on the horizontal workbench 3.

[0053] Please refer to Figure 2 and Figure 3 The data detection and processing mechanism includes a movable sensor 8, a distance sensor 14 and a data processor 15. Figure 2 The movable sensor 8 is located on the vertical workbench 2 , the distance sensor 14 is located in the area corresponding to the central positioning clamping mechanism on the vertical workbench 2 , and the data processor 15 is located above the distance sensor 14 on the vertical workbench 2 .

[0054] Please refer to Figure 2 、 Figure 3 、 Figure 7 and Figure 8 Specifically, the movable sensor 8 includes a slider 11, a locking fixture 12, a pressure sensor 13, and a hexagon socket head bolt 16. The slider 11 is located in the guide rail on the vertical workbench 2. The slider 11 is provided with a threaded hole, and the locking fixture 12 is provided with a through hole. The slider 11 and the locking fixture 12 are connected by the hexagon socket head bolt 16. The other end of the locking fixture 12 is provided with an "I"-shaped groove, and the pressure sensor 13 is connected to the locking fixture 12 through the "I"-shaped groove.

[0055] In this embodiment, the data detection and processing mechanism is used to measure the distance between the middle of the leaf spring 1 and the end of the leaf spring 1 relative to the vertical workbench 2, and the data is processed to obtain the unilateral bending size of the leaf spring 1. When measuring the unilateral bending of the leaf spring 1, first loosen the hexagon socket bolt 16 of the movable sensor 8, and create a gap between the locking fixture 12 and the vertical workbench 2 to adjust the position of the movable sensor 8. Move the movable sensor 8 to the lateral bending of the leaf spring 1, and then tighten the hexagon socket bolt 16. The locking fixture 8 fits tightly with the vertical workbench 2. At this time, the position of the movable sensor 8 is fixed, and the transmission point finding mechanism drives the leaf spring 1 close to the vertical workbench 2. The leaf spring 1 touches the pressure sensor 13 and is pressurized to a specified value. The pressure sensor 13 transmits a signal to the hydraulic cylinder 10 to stop providing power to the central positioning clamping mechanism. The leaf spring 1 stops moving, and the locking fixture 12 The sum of the thickness and the height of the pressure sensor 13 is the distance between the end of the leaf spring 1 and the vertical worktable 2. The distance sensor 14 measures the distance from the middle of the leaf spring 1 to the vertical worktable 2 and the thickness of the vertical surface of the groove of the middle positioning base 4 as the distance between the middle of the leaf spring 1 and the vertical worktable 2. The data processor 15 takes the difference between the distance from the end of the leaf spring 1 to the vertical worktable 2 and the distance from the middle of the leaf spring 1 to the vertical worktable 2 to obtain the unilateral bending size of the leaf spring 1. When batch testing the same leaf springs 1, only the leaf springs need to be replaced and clamped for positioning. There is no need to adjust the position of the movable sensor 8, which can reduce manual operation errors, reduce labor intensity, and effectively improve product inspection efficiency.

Claims

1. An automatic detection device for unilateral lateral bending of a leaf spring, used for accurate numerical measurement of unilateral lateral bending of a single leaf spring and an assembly of leaf springs, characterized in that: The unilateral lateral bending automatic detection device includes a detection workbench, a middle positioning clamping mechanism, a transmission point finding mechanism, and a data detection and processing mechanism; The detection workbench is used for positioning and installing the transmission point finding mechanism and the data detection and processing mechanism, and is divided into two parts: a horizontal workbench and a vertical workbench; the horizontal workbench is used for leveling the equipment and installing and positioning the transmission point finding mechanism; The middle positioning and clamping mechanism is used for positioning and clamping the middle of the leaf spring to avoid shaking of the leaf spring due to mechanical transmission and thus avoid measurement errors; The transmission point finding mechanism is used to move the leaf spring on the horizontal workbench so that the leaf spring is close to the data detection and processing mechanism at the end measurement point; The data detection and processing mechanism is used to measure the vertical distance from the middle position of the leaf spring to the vertical workbench and the vertical distance from the measuring point at the end of the leaf spring to the vertical workbench, and perform simple data processing to obtain the lateral bending size of the leaf spring.

2. The automatic detection device for unilateral bending of a leaf spring according to claim 1, characterized in that: The detection workbench includes a horizontal workbench and a vertical workbench; The horizontal workbench is in a geometrically parallel state with the bottom of the workbench, and is used for leveling the equipment and installing and positioning the transmission point-finding mechanism; The vertical workbench is provided with guide rails in both horizontal and vertical directions, which can be used for the data detection and processing mechanism to move and position on the vertical workbench to accurately locate different leaf spring measurement points.

3. The automatic detection device for unilateral bending of a leaf spring according to claim 1, characterized in that: The central positioning and clamping mechanism includes a central positioning base and a clamping device; The middle positioning base is installed in the middle of the horizontal workbench and is used to place the middle of the leaf spring. The middle positioning base has two types: a horizontal base and a double-beam base, which can be replaced according to the status of the leaf spring measurement results; The clamping device includes a handle, a transmission screw, and a clamping block. The handle and the clamping block are connected through the transmission screw. Clockwise rotation can drive the clamping block to clamp the leaf spring through the transmission screw, and counterclockwise rotation of the handle can loosen the leaf spring.

4. The automatic detection device for unilateral bending of a leaf spring according to claim 1, characterized in that: The transmission point finding mechanism includes a double guide rail mechanism and a hydraulic cylinder; The dual-guide rail mechanism includes a dual guide rail and a dual guide rail slider. The dual guide rail is fixed to the vertical workbench along the normal direction. The dual guide rail slider is fixed to the central positioning base by bolts and can drive the movement of the central positioning base to achieve smooth movement of the leaf spring on the horizontal workbench. The hydraulic cylinder is fixed on the vertical workbench along the normal direction, and the end is connected to the middle positioning base through bolts. The expansion and contraction of the hydraulic cylinder drives the leaf spring to move along the double guide rails in the horizontal direction.

5. The automatic detection device for unilateral bending of a leaf spring according to claim 1, characterized in that: The data detection and processing mechanism includes a movable sensor, a distance sensor, and a data processor; The movable sensor includes a slider, a locking fixture, a pressure sensor, and a hexagon socket bolt. The slider and the locking fixture are connected to the vertical workbench through the hexagon socket bolt. The pressure sensor is connected to the locking fixture. The vertical distance from the end of the leaf spring to the vertical workbench is measured by the movable sensor. The distance sensor can detect the vertical distance between the middle position of the leaf spring and the vertical workbench; The data processor obtains the lateral bending of the single-sided leaf spring by subtracting the vertical distance from the end of the leaf spring to the vertical workbench measured by the movable sensor from the vertical distance from the middle position of the leaf spring to the vertical workbench.

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