Spoke matching size detection mechanism

Abstract

The utility model provides a spoke matching size detection mechanism. The spoke matching size detection mechanism comprises a measuring mechanism, a clamping and positioning mechanism and a roller way frame, the roller way frame is used for conveying and supporting spokes; the measuring mechanisms are symmetrically arranged on the two sides of the roller way frame along the X axis and comprise sensor measuring devices and first executing mechanisms. The sensor measuring device is movably close to or far away from the spoke outer diameter detection surface in the Z-axis direction and is used for measuring the spoke outer diameter matching size, and the first executing mechanism is used for driving the sensor measuring device to be close to or far away from the spoke; and the clamping and positioning mechanism is used for centering and clamping the spoke. The spoke matching size detection mechanism is arranged at the tail end of an automatic spoke production line, whether the machined spoke meets the press-fit requirement or not can be automatically detected, the detection efficiency and the detection precision are greatly improved, and the situation that the press-fit efficiency and the press-fit quality of follow-up rims and spokes are affected due to large manual detection errors and low efficiency is avoided.

Description

Technical Field

[0001] This utility model relates to the field of automated processing technology, and in particular to a wheel spoke fit dimension detection mechanism. Background Technology

[0002] Currently, the production process for tubeless steel wheels involves manufacturing the rim and spokes separately, then pressing them together using a press. Therefore, strict dimensional control is required during spoke production to improve the quality of the press fit with the rim, thereby enhancing the overall wheel quality. Consequently, an automatic detection device for the outer diameter press fit of the spokes needs to be added to the final stage of the spoke production line. After dimensional detection, the products are sorted, and qualified products are sent to the wheel assembly line for press fit.

[0003] Conventional dimensional inspection methods mostly involve manual inspection using tools such as micrometers and vernier calipers. The results of measurements taken by different personnel or with different tools will produce different errors from the actual dimensions, making it difficult to guarantee the consistency of the required pressing dimensions of the wheel spokes, affecting the pressing quality of the wheel hub. At the same time, manual inspection has low production efficiency. Utility Model Content

[0004] The purpose of this utility model is to provide a wheel spoke fit dimension detection mechanism to solve at least one or more technical problems existing in the prior art.

[0005] To solve the above-mentioned technical problems, this utility model provides a wheel spoke fit dimension detection mechanism, including: a measuring mechanism, a clamping and positioning mechanism, and a roller conveyor frame;

[0006] The roller conveyor frame is used for conveying and supporting the wheel spokes;

[0007] The measuring mechanism is symmetrically arranged on both sides of the roller frame along the X-axis, and includes a sensor measuring device and a first actuator; the sensor measuring device is movable along the Z-axis to approach or move away from the spoke outer diameter detection surface for measuring the spoke outer diameter fitting dimensions, and the first actuator is used to drive the sensor measuring device to approach or move away from the spoke;

[0008] The clamping and positioning mechanism is used for centering and clamping the spokes.

[0009] Furthermore, the sensor measuring device is equipped with a displacement sensor, which is fixedly mounted on the sensor support;

[0010] The sensor support is movably mounted on the measuring bracket along the Z-axis direction, and a first linear displacement guide device is provided between the sensor support and the measuring bracket for guiding the movement of the sensor support.

[0011] The measuring bracket is fixedly mounted on the roller conveyor.

[0012] Furthermore, the sensor measuring device also includes an H-shaped detection plate, which is slidably disposed on the sensor support along the Z-axis direction;

[0013] During testing, one end of the H-shaped detection plate abuts against the detection end of the displacement sensor, and the other end abuts against the wheel spoke detection surface;

[0014] A second linear displacement guide device is provided between the H-shaped detection plate and the sensor support for guiding the movement of the H-shaped detection plate.

[0015] The H-shaped detection plate transforms the detection of the wheel spoke detection surface to the H-shaped detection plate, shortening the distance between the displacement sensor detection end and the detected surface, avoiding the need for extended installation of the displacement sensor, improving the installation stability of the displacement sensor, and thus improving the stability and accuracy of the detection.

[0016] Preferably, the sensor measuring device is further provided with an elastic reset element for resetting the H-shaped detection plate after measurement.

[0017] Furthermore, the measuring mechanism also includes a limiting device for limiting the sliding of the H-shaped detection plate along the Z-axis direction.

[0018] Furthermore, the clamping and positioning mechanism includes two sets of positioning rods symmetrically arranged along the X-axis. The positioning rods extend upward from the roller frame, and the two sets of positioning rods can move towards or away from each other along the Z-axis at the same time to clamp or release the spokes.

[0019] The positioning rods are respectively fixedly installed on the left movable seat and the right movable seat;

[0020] The left movable seat and the right movable seat are slidably disposed on the slide rail seat, and a third linear displacement guide device is provided between the bottom of the left movable seat and the right movable seat and the slide rail seat for guiding the left movable seat and the right movable seat when sliding.

[0021] Two slide rails are symmetrically arranged along the Z-axis, and both are fixedly connected to the roller conveyor frame.

[0022] Furthermore, the clamping and positioning mechanism also includes a centering device, which includes two sets of sprockets and chain drive mechanisms symmetrically arranged along the Z-axis;

[0023] The sprocket is vertically and fixedly mounted inside the slide rail seat;

[0024] The chain is provided with an upper connecting seat and a lower connecting seat at equal intervals and fixedly installed on it;

[0025] The upper connecting seat is fixedly connected to the right moving seat, and the lower connecting seat is fixedly connected to the left moving seat, for the right moving seat and the left moving seat to move synchronously towards each other or away from each other.

[0026] Furthermore, the clamping and positioning mechanism also includes a second telescopic cylinder. The body of the second telescopic cylinder is fixedly connected to the roller conveyor frame, and the telescopic end of the second telescopic cylinder is fixedly connected to the right moving seat, which is used to drive the right moving seat to move, thereby driving the two sets of positioning rods to move.

[0027] Furthermore, it also includes a material blocking mechanism, which comprises a plurality of material blocking rods and material blocking plates;

[0028] The baffle rod is vertically and vertically positioned in the material inflow direction of the wheel spoke to prevent subsequent wheel spokes to be tested from entering the testing station;

[0029] The baffle plate is disposed in the discharge direction of the wheel spoke and is used to limit the wheel spoke in the X-axis direction to prevent the wheel spoke from deviating from the detection station along the X-axis direction.

[0030] By adopting the above technical solution, this utility model has the following beneficial effects:

[0031] The spoke fit dimension detection mechanism provided by this utility model has the following advantages:

[0032] Setting up a spoke fit dimension detection mechanism at the end of the automated spoke production line can automatically detect the outer diameter of the processed spokes and use the detection dimension to calculate whether the spokes meet the press fit requirements. This greatly improves detection efficiency and accuracy, avoids the large errors and low efficiency of manual detection that affect the subsequent press fit efficiency and quality of spokes and rims, and thus improves the production efficiency of the wheel hub production line. Attached Figure Description

[0033] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0034] Figure 1 A perspective view of a spoke fit dimension detection mechanism provided for an embodiment of this utility model;

[0035] Figure 2 A front view of a spoke fit dimension detection mechanism provided in an embodiment of this utility model;

[0036] Figure 3 for Figure 2 Top view;

[0037] Figure 4 A perspective view of the measuring mechanism in a spoke fit dimension detection mechanism provided for an embodiment of this utility model;

[0038] Figure 5 A front view of the measuring mechanism in a spoke fit dimension detection mechanism provided in an embodiment of this utility model;

[0039] Figure 6 for Figure 5 Top view;

[0040] Figure 7 for Figure 4 Enlarged view of point A in the middle

[0041] Figure 8 A perspective view of a clamping and positioning mechanism in a spoke fit dimension detection mechanism provided for an embodiment of this utility model;

[0042] Figure 9 A bottom perspective view of the clamping and positioning mechanism in a wheel spoke fit dimension detection mechanism provided for an embodiment of this utility model;

[0043] Figure 10 for Figure 9 Enlarged view of point A in the middle;

[0044] Figure 11 This is a perspective view of a component of a wheel spoke fit dimension detection mechanism provided in an embodiment of the present utility model.

[0045] Figure label:

[0046] 1-Measuring mechanism; 11-Measuring bracket; 12-Sensor measuring device; 121-Contact digital displacement sensor; 122-Sensor support; 1221-Limiting surface; 123-H-type detection plate; 124-Second displacement slider; 125-Second displacement slide rail; 126-Reset spring; 13-First telescopic cylinder; 14-Limiting device; 141-Fixing plate; 142-Limiting plate; 143-Adjusting screw; 144-Locking nut; 145-Limiting screw; 15-First displacement slider; 16-First displacement slide rail; 2-Clamping and positioning mechanism; 21- Positioning rod; 22-Left moving seat; 23-Right moving seat; 24-Slide rail seat; 25-Third displacement slider; 26-Third displacement slide rail; 27-Centering device; 271-Chain; 272-Sprocket; 273-Upper connecting seat; 274-Lower connecting seat; 28-Second telescopic cylinder; 29-Cylinder seat plate; 3-Roller frame; 31-Roller; 4-Blocking mechanism; 41-Blocking rod; 42-Support frame; 43-Third telescopic cylinder; 44-Blocking plate; 441-Vertical tube section; 45-Limiting pin; 46-Seat plate; 461-Limiting hole; 47-Base plate; 5-Wheele. Detailed Implementation

[0047] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0048] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," 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 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. Furthermore, the terms "first," "third," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0049] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0050] The present invention will be further explained below with reference to specific embodiments.

[0051] like Figure 1-3 As shown, this embodiment provides a wheel spoke fit dimension detection mechanism, including: a measuring mechanism 1, a clamping and positioning mechanism 2, and a roller conveyor 3;

[0052] The roller conveyor 3 is used for conveying and supporting the spokes 5;

[0053] The measuring mechanism 1 is symmetrically arranged on both sides of the roller frame 3 along the X-axis, including a sensor measuring device 12 and a first actuator; the sensor measuring device 12 is movable along the Z-axis to approach or move away from the outer diameter detection surface of the spoke 5, and is used to measure the outer diameter mating dimension of the spoke 5; the first actuator is used to drive the sensor measuring device 12 to approach or move away from the spoke 5.

[0054] The clamping and positioning mechanism 2 is used for centering and clamping the spokes 5.

[0055] like Figure 4-6 As shown, the sensor measuring device 12 is equipped with a displacement sensor, which is fixedly mounted on the sensor support 122.

[0056] The sensor support 122 is movably mounted on the measuring bracket 11 along the Z-axis direction. A first linear displacement guide device is provided between the sensor support 122 and the measuring bracket 11 for guiding the movement of the sensor support 122.

[0057] The measuring bracket 11 is fixedly mounted on the roller conveyor frame 3.

[0058] In this embodiment, the displacement sensor is a contact-type digital displacement sensor 121;

[0059] The first linear displacement guide device includes a first displacement slider 15 and a first displacement slide rail 16; the first displacement slider 15 is fixedly installed at the bottom of the sensor support 122, and the first displacement slide rail 16 is fixedly installed on the measuring bracket 11.

[0060] The sensor measuring device 12 also includes an H-shaped detection plate 123, which is slidably mounted on the sensor support 122 along the Z-axis direction;

[0061] During testing, one end of the H-shaped detection plate 123 abuts against the detection end of the contact digital displacement sensor 121, and the other end abuts against the detection surface of the wheel spoke 5;

[0062] A second linear displacement guide device is provided between the H-shaped detection plate 123 and the sensor support 122 for guiding the movement of the H-shaped detection plate.

[0063] In this embodiment, the second linear displacement guide device includes a second displacement slider 124 and a second displacement slide rail 125; the second displacement slider 124 is fixedly disposed at the bottom of the H-shaped detection plate 123, and the second displacement slide rail 125 is fixedly disposed at the sensor support 122.

[0064] The H-type detection plate 123 converts the detection of the wheel spoke 5 detection surface to the detection of the H-type detection plate 123, avoiding the extension installation of the contact digital displacement sensor 121, improving the stability of the installation of the contact digital displacement sensor 121, and thus improving the stability and accuracy of the detection.

[0065] Preferably, the sensor measuring device 12 is further provided with an elastic reset element for resetting the H-shaped detection plate 123 after measurement.

[0066] In this embodiment, the elastic reset element is a reset spring 126.

[0067] During testing, when the H-shaped testing plate 123 comes into contact with the spoke 5, the H-shaped testing plate 123 is stretched by the return spring 126. After the test is completed, the H-shaped testing plate 123 moves away from the spoke 5, the return spring 126 rebounds, and the H-shaped testing plate 123 returns to its initial position.

[0068] The measuring mechanism 1 also includes a limiting device 14 for limiting the movement of the sensor support 122 and the H-shaped detection plate 123 along the Z-axis.

[0069] In this embodiment, the limiting device 14 includes a fixed plate 141, a limiting plate 142 and a threaded transmission assembly, which are used to limit the movement of the sensor support 122.

[0070] The fixing plate 141 is fixedly mounted on the measuring bracket 11;

[0071] The limiting plate 142 is movably mounted on the measuring bracket 11.

[0072] like Figure 7 As shown, the sensor support 122 is provided with a limiting surface 1221 that is adapted to the limiting plate 142;

[0073] The threaded transmission assembly includes an adjusting screw 143 and a locking nut 144. The adjusting screw 143 is threadedly connected to the limiting plate 142 and is used to adjust the distance between the limiting plate 142 and the fixed plate 141, thereby achieving the movement limitation of the sensor support 122.

[0074] The limiting device 14 also includes a limiting screw 145, which is disposed on the upper part of the sensor support 122 and threadedly connected to the sensor support 122; it is used to limit the position of the H-type detection plate 123 under pressure during detection, so as to avoid excessive compression of the detection head of the contact digital displacement sensor 121 by the H-type detection plate 123 during the detection process.

[0075] The locking nut 144 is used to lock and fix the positions of the adjusting screw 143 and the limiting screw 145.

[0076] like Figure 8 As shown, the clamping and positioning mechanism 2 includes two sets of positioning rods 21 symmetrically arranged along the X-axis. The positioning rods 21 extend upward out of the roller frame 3, and the two sets of positioning rods 21 can move towards or away from each other along the Z-axis at the same time, for centering and clamping or loosening the spokes 5.

[0077] Positioning rods 21 are fixedly mounted on the left movable seat 22 and the right movable seat 23 respectively;

[0078] The left movable seat 22 and the right movable seat 23 are simultaneously and can slide towards or away from each other along the Z-axis on the slide rail seat 24. A third linear displacement guide device is provided between the bottom of the left movable seat 22 and the right movable seat 23 and the slide rail seat 24 for guiding the left movable seat 22 and the right movable seat 23 when they slide.

[0079] Two slide rail seats 24 are symmetrically arranged along the Z-axis, and both are fixedly connected to the roller frame 3.

[0080] In this embodiment, the third linear displacement guide device includes a third displacement slider 25 and a third displacement slide rail 26. The third displacement slider 25 is fixedly disposed at the bottom of the left moving seat 22 and the right moving seat 23, respectively, and the third displacement slide rail 26 is fixedly disposed at the top of the slide rail seat 24.

[0081] like Figure 9-10 As shown, the clamping and positioning mechanism 2 also includes a centering device 27, which includes two sets of sprockets 272 and chain 271 transmission mechanism symmetrically arranged along the Z-axis;

[0082] The sprocket 272 is vertically and fixedly mounted inside the slide rail seat 24;

[0083] The chain 271 is provided with an upper connecting seat 273 and a lower connecting seat 274 at equal intervals and fixedly installed.

[0084] The upper connecting seat 273 is fixedly connected to the right moving seat 23, and the lower connecting seat 274 is fixedly connected to the left moving seat 22, for the right moving seat 23 and the left moving seat 22 to move synchronously towards each other or away from each other.

[0085] The synchronous centering movement of the right moving seat 23 and the left moving seat 22 drives the synchronous centering movement of the positioning rods 21 on both sides of the spoke 5, thereby achieving the centering clamping or loosening of the spoke 5.

[0086] The clamping and positioning mechanism 2 also includes a second telescopic cylinder 28. The body of the second telescopic cylinder 28 is fixedly mounted on the cylinder seat plate 29. The cylinder seat plate 29 is fixedly connected to the roller frame 3. The telescopic end of the second telescopic cylinder 28 is fixedly connected to the right moving seat 23, which is used to drive the right moving seat 23 to move, thereby driving the two sets of positioning rods 21 to move in the center.

[0087] In addition, it also includes a material blocking mechanism 4, which includes a plurality of material blocking rods 41 and a material blocking plate 44;

[0088] The baffle bar 41 is vertically and vertically positioned in the material inlet direction of the spoke 5 to prevent subsequent spokes 5 to be tested from entering the testing station;

[0089] The baffle plate 44 is V-shaped and positioned in the discharge direction of the spoke 5 to prevent the spoke 5 from deviating from the detection station along the X-axis.

[0090] refer to Figure 1 As shown, in this embodiment, the baffle plate 44 is symmetrically arranged on the seat plate 46 along the X-axis direction, and the seat plate 46 is fixedly arranged on the roller frame 3;

[0091] One end of the baffle plate 44 is hinged to the seat plate 46. During testing, the two baffle plates 44 are rotated to form a V-shape, which limits the spokes 5 along the X-axis.

[0092] In addition, it also includes a limiting pin 45, which extends through the vertical tube 441 fixedly provided on the outside of the baffle plate 44 and into the limiting hole 461 opened on the seat plate 46 to limit the rotation of the baffle plates 44 on both sides.

[0093] The seat plate 46 is provided with limiting holes 461 in different positions to meet the detection of the outer diameter of the spokes 5 of different specifications.

[0094] like Figure 11 As shown, there are two baffle rods 41, which are vertically raised and lowered along the Y-axis on the support frame 42, and the support frame 42 is fixedly connected to the roller frame 3;

[0095] The baffle rod 41 is installed through the support frame 42 from bottom to top. The support frame 42 has a round hole for the baffle rod 41 to pass through. The bottom of the baffle rod 41 is fixedly provided with a base plate 47.

[0096] In addition, it also includes a third telescopic cylinder 43, which is used to drive the baffle rod 41 to rise and fall vertically. The body of the third telescopic cylinder 43 is fixedly connected to the support frame 42, and the telescopic end of the third telescopic cylinder 43 is fixedly connected to the base plate 47.

[0097] The vertically adjustable baffle bar 41 extends during testing to separate the spokes to be tested 5 from the spokes to be tested 5, preventing subsequent spokes from flowing in and affecting the testing of the spokes to be tested. After testing, the spokes to be tested leave the testing station, the baffle bar 41 descends, and subsequent spokes to be tested are driven by the rollers 31 on the roller conveyor 3 to flow into the testing station for testing, which greatly improves work efficiency.

[0098] In addition, this embodiment also includes a data processing module and an alarm module (not shown);

[0099] The data processing module is used to receive the measurement values ​​from the contact digital displacement sensor 121, calculate the outer diameter of the measured wheel spoke 5, and compare the outer diameter value with a preset critical value; the alarm module is used to issue an audible and visual alarm for data exceeding the critical value.

[0100] Specifically, before the equipment starts working, the spokes 5 are placed in the inspection station on the roller conveyor 3. The second telescopic cylinder 28 extends, driving the right moving seat 23 to move in the center. At the same time, the centering device 27 drives the left moving seat 22 to move in the center, which in turn drives the two pairs of positioning rods 21 to move in the center, positioning and clamping the spokes 5 in the front-back and left-right directions. Then, the opening and closing angle of the baffle plate 44 is adjusted according to the specifications of the spokes 5 to prevent the spokes 5 from moving too far during automatic inspection, which would cause the clamping and positioning to fail, thus preparing for the subsequent automatic inspection of the spokes 5. Next, the first telescopic cylinders 13 on both sides extend, driving the sensor measuring device 12 to move and make the H-shaped detection plate 123 contact the spokes 5 and slightly press the detection end of the contact digital displacement sensor 121. The position of the H-shaped detection plate 123 is limited by adjusting the limit screw 145 to prevent excessive pressing and damage to the contact digital displacement sensor 121. At this time, the spokes 5 are removed, and the distance between the ends of the two H-shaped detection plates 123 near the contact digital displacement sensor 121 is measured and recorded as the front-end basic data.

[0101] In the automated production line, the spokes 5 enter the roller conveyor frame 3 from the incoming material end and move to the inspection station with the rollers 31. The baffle plate 44 limits their movement in the X-axis direction. Simultaneously, the third telescopic cylinder 43 retracts, driving the baffle rod 41 to extend from the roller conveyor frame 3 to block subsequent spokes 5 entering the roller conveyor, preventing them from prematurely entering the inspection station and affecting the inspection process. Next, the clamping and positioning mechanism 2 centers and clamps the spokes 5. Then, the first telescopic cylinder 13 extends, driving the sensor measuring device 12 to move towards the spokes 5. When the H-shaped detection plate 123 contacts the spokes 5 and the detection end of the contact digital displacement sensor 121 is compressed and retracted, the system automatically reads the data from the two contact digital displacement sensors 121. By calculating the basic front-end data and subtracting the two sensor readings, the outer diameter of the spoke 5's mating surface can be obtained. After the measurement is completed, the first telescopic cylinder 13 retracts, the H-shaped detection plate 123 disengages from the spoke 5 and returns to its initial position under the action of the return spring 126, and the contact digital displacement sensor 121 also returns to its initial position; the second telescopic cylinder 28 retracts, and the two sets of positioning rods 21 release their clamping and positioning on the spoke 5; for spokes with an outer diameter exceeding the critical value, an audible and visual alarm is triggered and the machine arm removes them from the production line, which is considered a defective product; spokes with an outer diameter not exceeding the critical value are moved by the machine arm to the rim spoke 5 pressing line to prepare for pressing with the rim. Finally, the third telescopic cylinder 43 extends, the stop rod 41 descends to a position lower than the roller 31, the entire mechanism returns to its initial position, and the inspection is completed.

[0102] The spoke fit dimension detection mechanism provided by this utility model has the following advantages:

[0103] Setting up a spoke fit dimension detection mechanism at the end of the automated spoke production line can automatically detect the outer diameter of the processed spokes and use the detection dimension to calculate whether the spokes meet the press fit requirements. This greatly improves detection efficiency and accuracy, avoids the large errors and low efficiency of manual detection that affect the subsequent press fit efficiency and quality of spokes and rims, and thus improves the production efficiency of the wheel hub production line.

[0104] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. A spoke fit size detection mechanism characterized by, include: Measuring mechanism, clamping and positioning mechanism, and roller conveyor; The roller conveyor frame is used for conveying and supporting the wheel spokes; The measuring mechanism is symmetrically arranged on both sides of the roller frame along the X-axis, and includes a sensor measuring device and a first actuator; the sensor measuring device is movable along the Z-axis to approach or move away from the spoke outer diameter detection surface for measuring the spoke outer diameter fitting size, and the first actuator is used to drive the sensor measuring device to approach or move away from the spoke; The clamping and positioning mechanism is used for centering and clamping the spokes.

2. The spoke fit size detection mechanism according to claim 1, wherein The sensor measuring device is equipped with a displacement sensor, which is fixedly mounted on the sensor support. The sensor support is movably mounted on the measuring bracket along the Z-axis direction, and a first linear displacement guide device is provided between the sensor support and the measuring bracket for guiding the movement of the sensor support. The measuring bracket is fixedly mounted on the roller conveyor.

3. The spoke fit size detection mechanism according to claim 2, wherein The sensor measuring device further includes an H-shaped detection plate, which is slidably mounted on the sensor support along the Z-axis direction; During testing, one end of the H-shaped detection plate abuts against the detection end of the displacement sensor, and the other end abuts against the wheel spoke detection surface; A second linear displacement guide device is provided between the H-shaped detection plate and the sensor support for guiding the movement of the H-shaped detection plate.

4. The spoke fit size detection mechanism according to claim 3, wherein The sensor measuring device is also equipped with an elastic reset element for resetting the H-shaped detection plate after measurement.

5. The spoke fit size detection mechanism according to claim 3, wherein The measuring mechanism also includes a limiting device for limiting the movement of the sensor support and the H-shaped detection plate along the Z-axis.

6. The spoke fit size detection mechanism according to claim 2, wherein The first actuator is a first telescopic cylinder, the body of the first telescopic cylinder is fixedly mounted on the measuring bracket, and the telescopic end of the first telescopic cylinder is fixedly connected to the sensor support.

7. The spoke fit size detection mechanism according to claim 1, wherein The clamping and positioning mechanism includes two sets of positioning rods symmetrically arranged along the X-axis. The positioning rods extend upward from the roller frame, and the two sets of positioning rods can move towards or away from each other along the Z-axis at the same time for centering and clamping or releasing the spokes. The positioning rods are respectively fixedly installed on the left movable seat and the right movable seat; The left movable seat and the right movable seat are slidably disposed on the slide rail seat. A third linear displacement guide device is provided between the bottom of the left movable seat and the right movable seat and the slide rail seat for guiding the left movable seat and the right movable seat when they slide. Two slide rails are symmetrically arranged along the Z-axis, and both are fixedly connected to the roller conveyor frame.

8. The spoke fit size detection mechanism according to claim 7, wherein The clamping and positioning mechanism also includes a centering device, which includes two sets of sprockets and a chain drive mechanism symmetrically arranged along the Z-axis. The sprocket is vertically and fixedly mounted inside the slide rail seat; The chain is provided with an upper connecting seat and a lower connecting seat at equal intervals and fixedly installed on it; The upper connecting seat is fixedly connected to the right moving seat, and the lower connecting seat is fixedly connected to the left moving seat, so as to realize that the right moving seat and the left moving seat move synchronously towards each other or away from each other.

9. The spoke fit size detection mechanism according to claim 7, wherein The clamping and positioning mechanism also includes a second telescopic cylinder. The body of the second telescopic cylinder is fixedly connected to the roller conveyor frame, and the telescopic end of the second telescopic cylinder is fixedly connected to the right moving seat. It is used to drive the right moving seat to move, thereby driving the two sets of positioning rods to move synchronously to the center.

10. The spoke fit size detection mechanism according to claim 7, wherein It also includes a material blocking mechanism, which includes a material blocking rod and a material blocking plate; The baffle rod is vertically and vertically positioned in the material inlet direction of the wheel spoke to prevent subsequent wheel spokes to be tested from entering the testing station during measurement. The baffle plate is disposed in the discharge direction of the spokes to limit the spokes in the X-axis direction and prevent the spokes from deviating from the detection station along the X-axis direction.

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