A portable guide arm arc height measuring device

Abstract

The utility model belongs to the technical field of guiding arm size detection, specifically relates to a portable guiding arm arc height measuring device, the measuring device includes guiding module, measuring module, positioning module, the portable guiding arm arc height measuring device measures the arc height size and the distance size of guiding arm ear center to the center hole among the guiding module through measuring module, guiding module is used for moving the position of measuring module and positioning module, positioning module ensures the accurate data measured by measuring module through guaranteeing the position of the middle straight section of guiding arm, and the measurement result can be directly read on the guiding module. When measuring the related size of the same specification guiding arm in batches, the guiding arm does not need to be moved, and only the measuring device can be moved, so that the utility model has the advantages of simple operation, convenient carrying and strong adaptability, and is suitable for various measuring environments.

Description

Technical Field

[0001] This utility model belongs to the field of guide arm size detection technology, specifically relating to a portable guide arm arc height measuring device. Background Technology

[0002] With the rapid improvement of living standards, people have higher requirements for the user experience of transportation, especially emphasizing driving stability and ride comfort. As a core component connecting the vehicle frame and axles, air suspension plays a crucial role in load-bearing, vibration reduction, and cushioning, and its application is becoming increasingly widespread. Guide arms are commonly used in air suspension systems. To adapt to the installation requirements of different vehicle models, the arc height of the guide arms must meet various dimensional specifications. Therefore, achieving accurate measurement of the arc height is crucial to ensuring the installation quality and manufacturing precision of the guide arms.

[0003] The arc height dimension of the guide arm refers to the vertical distance from the center of the inner diameter of the guide arm's lug to its middle straight section.

[0004] Currently, the conventional methods used in China to measure the arc height of guide arms include coordinate measuring machines (CMMs) and height gauges. These methods have many problems: 1. CMMs have high measurement accuracy, but the equipment is expensive, complex to operate, occupies a large space, and is not easy to move; 2. Height gauge measurements require measurement on a fixed platform, which requires moving the guide arm, resulting in high labor intensity and low inspection efficiency. Summary of the Invention

[0005] To overcome the shortcomings of existing guide arm arc height measurement devices, this application provides a portable guide arm arc height measurement device to adapt to the measurement of guide arm arc height in different measurement scenarios. This device addresses issues such as high equipment cost, complex operation and difficulty in moving the device, and high requirements for the testing environment, thereby reducing production costs, reducing labor intensity, and improving testing efficiency.

[0006] To achieve the above objectives, this application provides a portable guide arm arc height measuring device, which can facilitate the portable movement of the measuring device when measuring the arc height dimension and can be applied to the measurement of the arc height dimension of the guide arm in different environments. The portable guide arm arc height measuring device includes a guide module, a measuring module, and a positioning module, with the measuring module and the positioning module both mounted on the guide module.

[0007] The guiding module is used for the movement and positioning of the measuring module and the positioning module on this measuring device, and can adapt to the accurate measurement of the arc height of guide arm products of different specifications and sizes.

[0008] The measurement module is used to measure the arc height of guide arms of different specifications and the distance from the center of the guide arm's lug to its center hole, so as to achieve accurate measurement of the arc height of the guide arm and the center distance from the center of the lug to the center hole.

[0009] The positioning module is used to position the straight section in the middle of the guide arm and its center hole, as well as to determine the measurement benchmark for the arc height of the guide arm, so as to achieve accurate measurement of the arc height of guide arms of different specifications and accurate measurement of the distance from the center of the guide arm's lug to its center hole.

[0010] The guiding module includes mutually perpendicular horizontal and vertical guide rails, which are fixedly connected by bolts. Both the horizontal and vertical guide rails are rectangular beams with an opening at the center along their longitudinal axis and internal tracks. The internal tracks use linear bearings, which makes the sliding smooth and stable while making the device lightweight. Both the horizontal and vertical guide rails are equipped with scale lines, which can display the measurement results intuitively.

[0011] Preferably, the zero-scale lines of the horizontal and vertical guide rails of the guide module are both set at the point where the two guide rails overlap, and the scale values ​​of the two guide rails are both set to absolute values. The scale value of the vertical guide rail increases simultaneously to both sides from the zero scale value, while the scale value of the horizontal guide rail increases from left to right starting from the zero scale value.

[0012] The measuring module includes a pin and a spindle. The pin is slidably mounted on the vertical guide rail, and the spindle is mounted on the pin.

[0013] Preferably, a rectangular limiting block is fixed to the bottom of the pin, and the limiting block is chamfered to prevent the pin from bumping and causing unstable sliding when sliding in the track. The pin column end is provided with an external thread, and the mandrel is installed on the pin column end. The core of the mandrel is provided with an internal thread. The pin and the mandrel are connected by the internal and external threads. The bottom of the mandrel is provided with a tapered shaft with an increased diameter, which is used to ensure that the mandrel fits tightly with the vertical guide rail when the pin and the mandrel are engaged, so as to ensure that the axis of the mandrel is fully coincident with the center of the guide arm lug. Different specifications of mandrel can be replaced according to the inner diameter of the guide arm lug.

[0014] The positioning module includes a positioning plate, a spring guide rod mechanism, a movable plate, and a pin. One long side of the positioning plate is slidably mounted on the transverse guide rail via a guide rail slider assembly. The spring guide rod mechanism is mounted on the positioning plate, the movable plate is mounted on the other end of the spring guide rod mechanism, and the pin is mounted on the movable plate.

[0015] Preferably, one side of the long side of the positioning plate is slidably connected to the transverse guide rail via a guide rail slider assembly, which enables the positioning plate to slide along the transverse guide rail. A handle is fixed in the middle of the side away from the transverse guide rail, so as to move the position of the positioning plate on the transverse guide rail when positioning the straight section in the middle of the guide arm.

[0016] Preferably, the spring guide rod mechanism includes two sets of springs and guide rods, which are symmetrically installed at both ends of the positioning plate. The springs are tension springs, and the free length of the springs is slightly longer than the length of the guide rods. They are used to clamp the straight middle section of the guide arm being measured. The positioning plate and the movable plate are connected to the two ends of the springs. One end of the guide rod is vertically installed on the positioning plate, and the diameter of the guide rod is slightly smaller than the diameter of the spring, so that the guide rod is fitted inside the spring to ensure that the spring moves in the vertical direction of the positioning plate.

[0017] Preferably, the movable plate has a convex pin mounting hole, and a limiting plate with an increased diameter is fixed to the bottom of the pin. The limiting plate at the bottom of the pin is installed in the convex pin mounting hole on the movable plate. Specifically, the width of the movable plate is slightly smaller than the width of the positioning plate to avoid damage to the guide arm during measurement. Both the movable plate and the positioning plate have elastic pads on their inner sides to prevent friction damage to the guide arm during measurement and to ensure that the positioning plate and the movable plate can fit tightly against the straight section in the middle of the guide arm during measurement.

[0018] Preferably, the top of the pin column and the end of its limiting plate are both cut to avoid damage during pin installation. The bottom of the pin limiting plate is provided with a U-shaped handle to facilitate pin installation. Different specifications of pins can be replaced according to the different sizes of the guide arm center hole.

[0019] Compared with the prior art, the beneficial effects of this application are:

[0020] This application provides a measuring device for the arc height of a guide arm in non-fixed scenarios, including a guiding module, a measuring module, and a positioning module. The guiding module includes a horizontal guide rail and a vertical guide rail, which are vertically fixedly connected by bolts. The inner rails of the guide rails use linear bearings, and scale lines are provided on the horizontal and vertical guide rails. The measuring module includes a pin and a mandrel. The pin is slidably mounted on the vertical guide rail, and the pin's cylindrical end has an external thread. The mandrel's core has an internal thread, and the pin and mandrel are connected by the internal and external threads. The mandrel matches the inner diameter of the guide arm's lug. The mandrel can be replaced with different specifications according to the inner diameter of the lug. The positioning module includes a positioning plate, a spring guide rod mechanism, a movable plate, and a pin. The positioning plate is slidably mounted on the horizontal guide rail via a guide rail slider assembly, and the positioning plate is close to the horizontal guide rail. A spring guide rod mechanism is fixedly installed vertically on one side. The other end of the spring in the spring guide rod mechanism is connected to a movable plate. The movable plate has a convex pin mounting hole, through which the pin engages with the center hole of the guide arm. During measurement, first align the inner diameter of the guide arm's rolled ear with the mandrel. Simultaneously, move the positioning plate to the position of the straight section in the middle of the guide arm. Move the pin until the lower side of the straight section in the middle of the guide arm is in contact with the top of the positioning plate. Adjust the position of the positioning plate by sliding the guide rail slider group according to the position of the pin mounting hole and the center hole of the guide arm, until the pin can engage with the center hole of the guide arm through the pin mounting hole. The movable plate and the positioning plate clamp the straight section of the guide arm through the spring force in the spring guide rod mechanism. At this point, tighten the mandrel so that the tapered shaft of the mandrel fits tightly against the vertical guide rail. This completes one measurement. The position of the pin on the vertical guide rail indicates the arc height of the guide arm, and the position of the pin on the horizontal guide rail indicates the distance from the center of the rolled ear of the guide arm to its center hole. Both dimensions can be obtained directly from the scale values ​​on the guide rail. By moving the pin and positioning plate on the guide rail to coordinate with guide arms of different sizes, the arc height of the guide arm and the distance from the center of the guide arm lug to its center hole are detected. During batch measurement, it is not necessary to move the guide arm, only the detection device needs to be moved. The operation is simple, the measurement is convenient, the labor intensity is reduced, and the measurement efficiency is improved. Attached Figure Description

[0021] Figure 1 An assembly diagram of a portable guide arm arc height measuring device provided in an embodiment of this application is shown;

[0022] Figure 2 It shows Figure 1 A front view of the overall structure of a portable guide arm arc height measuring device provided in the image;

[0023] Figure 3 It shows Figure 1 A left view of the overall structure of a portable guide arm arc height measuring device provided in the image;

[0024] Figure 4 It shows Figure 2 A magnified view of a section at point A in the middle;

[0025] Figure 5 It shows Figure 2 A magnified view of a section at point B in the middle;

[0026] Figure 6 It shows Figure 2 Schematic diagram of the center pin;

[0027] Explanation of key component symbols:

[0028] 1-Horizontal guide rail; 2-Vertical guide rail; 3-Pin shaft; 4-Mandrel; 5-Guide rail slider assembly; 6-Positioning plate; 7-Spring; 8-Guide rod; 9-Handle; 10-Modible plate; 11-Pin rod mounting hole; 12-Pin rod; 13-Limit plate. Detailed Implementation

[0029] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0030] In the description of this utility model, it should be understood that the terms "center", "horizontal", "vertical", "upper", "lower", "front", "middle", "left", "right", "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 only for the convenience of describing this utility model and 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 this utility model.

[0031] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0032] To measure the arc height of the guide arm, this embodiment provides a portable guide arm arc height measuring device, including a guide module, a measuring module, and a positioning module, with the measuring module and the positioning module both mounted on the guide module.

[0033] Please refer to the following: Figure 1 , Figure 2 , Figure 3 The guide module consists of two beams with openings along the longitudinal axis, including a transverse guide rail 1 and a vertical guide rail 2. The transverse guide rail 1 and the vertical guide rail 2 are vertically fixedly connected by two bolts and are used for the movement, positioning and dimensional determination of the measuring module and the positioning module during measurement.

[0034] In this embodiment, both the horizontal guide rail 1 and the vertical guide rail 2 are provided with scale lines, and the zero scale lines of the horizontal guide rail 1 and the vertical guide rail 2 are both set at the intersection of the two guide rails. The scale values ​​are all set as absolute values. In particular, the scale value of the vertical guide rail 2 increases from the zero scale line to both sides, and the scale value of the horizontal guide rail 1 increases from the zero scale line to the right. During measurement, the value displayed by the horizontal guide rail 1 is the distance from the center hole of the guide arm to the center of its ear, and the value displayed by the vertical guide rail 2 is the arc height dimension of the guide arm to be measured.

[0035] In this embodiment, both the horizontal guide rail 1 and the vertical guide rail 2 use linear bearings to ensure smooth and stable movement of the measuring module and the positioning module on the guide module, while also achieving a lightweight design for the detection device.

[0036] Please refer to the following: Figure 1 , Figure 2 , Figure 3 and Figure 5 The measuring module includes a pin 3 and a spindle 4. The pin 3 is slidably mounted on the vertical guide rail 2, and the spindle 4 is mounted on the pin 3. The spindle 4 is matched with the inner diameter of the guide arm lug to be measured and is used for positioning the center of the guide arm lug.

[0037] In this embodiment, a rectangular limiting block is provided at the bottom of the pin 3, and the size of the rectangular limiting block is such that it can slide within the track of the vertical guide rail 2. The rectangular limiting block is also cut at the edges to avoid friction and collision with the track of the vertical guide rail 2 during sliding. The column of the pin 3 is provided with external threads, and the core of the mandrel 4 is provided with internal threads. The pin 3 and the mandrel 4 are connected by internal and external threads. In particular, the bottom of the mandrel 4 has a tapered shaft with an increased diameter. When the guide arm arc height is detected, the inner diameter of the guide arm lug is in contact with the mandrel 4. By moving the pin 3, the mandrel 4 is moved. After determining the position of the lug center, the mandrel 4 is tightened to ensure that there is no gap between the tapered shaft of the mandrel 4 and the vertical guide rail 2, and to ensure that the center of the mandrel 4 is fully coincident with the center of the guide arm lug being measured, so as to reduce measurement error.

[0038] Please refer to the following: Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 6The positioning module includes a positioning plate 6, a spring guide rod mechanism, a movable plate 10, and a pin 12. The positioning plate 6 is slidably mounted on the transverse guide rail 1 via the guide rail slider group 5. The spring guide rod mechanism is vertically mounted on the positioning plate 6. The movable plate 10 is vertically mounted on the other end of the spring guide rod mechanism. The pin 12 is mounted on the movable plate 10. A handle 9 is provided in the middle of the other side of the positioning plate 6 to facilitate the movement of the positioning module.

[0039] In this embodiment, the spring guide rod mechanism includes a spring 7 and a guide rod 8. Specifically, the spring 7 is a tension spring, and the free length of the spring 7 is slightly longer than that of the guide rod 8, which facilitates clamping the straight section in the middle of the guide arm to be measured. The guide rod 8 is sleeved inside the spring 7 to ensure that the spring 7 moves in a straight line. The positioning plate 6 and the movable plate 10 are installed at both ends of the spring 7, and elastic pads are provided on the inner sides of both the positioning plate 6 and the movable plate 10 to prevent the guide arm from being bumped and damaged during measurement.

[0040] In this embodiment, the movable plate 10 is provided with a convex pin mounting hole 11, and the bottom of the pin 12 has a limiting plate 13 with an increased diameter. The pin 12 is installed in the pin mounting hole 11. The pin 12 has a variety of different specifications. Different specifications of pin 12 can be replaced according to the size of the center hole of the guide arm to be tested. The bottom of the limiting plate 13 is provided with a U-shaped handle to facilitate the installation and replacement of the pin 12. The value of the pin 12 on the transverse guide rail 1 is the distance from the center of the guide arm's ear to its center hole.

[0041] The portable guide arm arc height measuring device provided in this embodiment is used by aligning the inner diameter of the guide arm lug with the mandrel 4, moving the mandrel 4 by the movable pin 3 until the lower side of the straight section in the middle of the guide arm is in contact with the upper side of the positioning plate 6. The movable plate 10 is pulled to clamp the straight section in the middle of the guide arm using the spring force of the spring 7. Simultaneously, the sliding guide rail slider group 5 is used to adjust the position of the positioning plate 6 on the transverse guide rail 1 until the pin 12 can simultaneously pass through the pin mounting hole 11 and the center hole of the guide arm. At this point, the mandrel 4 is tightened so that the tapered shaft of the mandrel 4 is tightly fitted with the vertical guide rail 2. Positioning is then complete. The position of the pin 11 on the transverse guide rail 1 represents the distance from the center of the guide arm lug to its center hole, and the position of the pin 3 on the vertical guide rail 2 represents the arc height dimension of the guide arm. After measurement, the movable plate 10 is removed from the straight section in the middle of the guide arm, and the measuring device can be taken out along the placement direction. During the measurement process, this measuring device can measure multiple dimensions and is easy to move.

[0042] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A portable guide arm arc height measuring device, used for accurate measurement of the guide arm arc height and the distance from the center of the lug to its center hole under different environments, characterized in that, The measuring device includes a guiding module, a measuring module, and a positioning module; The guiding module is used for the movement and positioning of the measuring module and the positioning module on this measuring device, and can adapt to the accurate measurement of the arc height of guide arm products of different specifications and sizes; The measurement module is used to measure the arc height of guide arms of different specifications and the distance from the center of the guide arm's lug to its center hole, so as to achieve accurate measurement of the arc height of the guide arm and the center distance from the center of the lug to the center hole. The positioning module is used to position the straight section in the middle of the guide arm and its center hole, as well as to determine the measurement benchmark for the arc height of the guide arm, so as to achieve accurate measurement of the arc height of guide arms of different specifications and accurate measurement of the distance from the center of the guide arm's lug to its center hole.

2. The portable guide arm arc height measuring device according to claim 1, characterized in that, The guide module includes a horizontal guide rail and a vertical guide rail; The horizontal guide rail is perpendicular to the vertical guide rail and is vertically fixed to the vertical guide rail by bolts. Both the horizontal guide rail and the vertical guide rail are rectangular beams with an opening at the center along their longitudinal axis and an internal track. The internal track uses linear bearings, which makes the sliding smooth and stable while making the device lightweight. Both the horizontal guide rail and the vertical guide rail are provided with scale lines, which can display the measurement results intuitively.

3. The portable guide arm arc height measuring device according to claim 1, characterized in that, The measurement module includes a pin and a spindle; The pin is slidably mounted on the vertical guide rail of the guide module, and the mandrel is mounted on the pin. A rectangular limiting block is fixed at the bottom of the pin, and the limiting block is chamfered to prevent the pin from bumping and causing unstable sliding when it slides in the rail. The pin has an external thread at its cylindrical end, and the mandrel is mounted on the cylindrical end of the pin. The core of the mandrel has an internal thread. The pin and the mandrel are connected by the internal and external threads. The bottom of the mandrel has a tapered shaft with an increased diameter, which is used to ensure that the mandrel fits tightly with the vertical guide rail of the guide module when the pin and the mandrel are engaged, so as to ensure that the axis of the mandrel is fully aligned with the center of the guide arm lug.

4. The portable guide arm arc height measuring device according to claim 1, characterized in that, The positioning module includes a positioning plate, a spring guide rod mechanism, a movable plate, and a pin. The positioning plate is slidably mounted on the transverse guide rail of the guide module via the guide rail slider assembly. The positioning plate and the movable plate are respectively fixedly mounted on both ends of the spring guide rod mechanism. The movable plate is provided with a convex pin mounting hole, and the pin engages with the center hole of the guide arm through the pin mounting hole. The spring guide rod mechanism includes two sets of springs and guide rods, which are symmetrically installed at both ends of the positioning plate. The springs are tension springs, and the free length of the springs is slightly longer than the length of the guide rods. They are used to clamp the straight middle section of the guide arm being measured. The positioning plate and the movable plate are connected to the two ends of the springs. One end of the guide rod is vertically installed on the positioning plate, and the diameter of the guide rod is slightly smaller than the diameter of the spring, so that the guide rod is fitted inside the spring to ensure that the spring moves in the vertical direction of the positioning plate.

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