Two-wheel electric motorcycle frame general measuring platform

Abstract

The utility model provides a kind of two-wheeled electric motorcycle frame general measuring platform, it is related to frame production technical field.The two-wheeled electric motorcycle frame general measuring platform includes: bottom plate, XY direction sliding table, Z direction sliding table, head tube positioning assembly, measuring scale and flat fork plate positioning assembly;Measuring scale is located between XY direction sliding table and flat fork plate positioning assembly, XY direction sliding table, measuring scale and flat fork plate positioning assembly are respectively installed in bottom plate;Z direction sliding table is installed on XY direction sliding table, head tube positioning assembly is connected in Z direction sliding table;Head tube positioning assembly is adapted with frame head tube, flat fork plate positioning assembly is adapted with frame flat fork mounting hole.It can be adjusted head tube positioning assembly respectively along X direction, Y direction and Z direction movement, can make measuring platform applicable to multiple specifications frame, and can be respectively installed fixed frame head tube and frame flat fork, can guarantee stable clamping and accurate measurement.

Description

Technical Field

[0001] This utility model relates to the field of vehicle frame manufacturing technology, and in particular to a universal measurement platform for two-wheeled electric motorcycle frames. Background Technology

[0002] The main technical challenges in measuring the frames of two-wheeled electric motorcycles are as follows: Since the frame measurement points are in three-dimensional space, high-precision straight-line measurements are difficult to achieve without specialized testing tools. This results in a lack of reliable measurement benchmarks for initial dimensional adjustments, leading to cumulative dimensional errors during later assembly. Existing solutions typically require the design of separate fixtures for each frame model to ensure clamping stability and measurement accuracy. This single-fit approach results in a general lack of universal testing equipment on the market that can accommodate multiple frame specifications while ensuring stable clamping and accurate measurement. Utility Model Content

[0003] The purpose of this utility model is to provide a universal measurement platform for two-wheeled electric motorcycle frames, so as to alleviate the technical problem that the special inspection tools in the prior art cannot be applied to various frame specifications and it is difficult to ensure stable clamping and accurate measurement.

[0004] In the first aspect, the universal measuring platform for two-wheeled electric motorcycle frames provided by this utility model includes: a base plate, an XY-axis slide table, a Z-axis slide table, a head tube positioning assembly, a measuring ruler, and a flat fork plate positioning assembly; The measuring ruler is located between the XY slide table and the flat fork plate positioning assembly, and the XY slide table, the measuring ruler and the flat fork plate positioning assembly are respectively installed on the base plate; The Z-axis slide is mounted on the XY-axis slide, and the head tube positioning assembly is connected to the Z-axis slide; The head tube positioning assembly is adapted to the head tube of the frame, and the swingarm plate positioning assembly is adapted to the swingarm mounting holes of the frame.

[0005] In conjunction with the first aspect, this utility model provides a first possible implementation of the first aspect, wherein the XY slide table includes: a Y-axis scale, an X-axis guide rail, a first fixed plate, a Y-axis guide rail, a first pointer, and a second fixed plate; The X-axis guide rail is connected to the base plate, and the first fixing plate is installed on the X-axis guide rail; The Y-guide rail is connected to the first fixing plate, and the second fixing plate is mounted on the Y-guide rail; The Y-axis scale is mounted on the first fixed plate, and the first pointer is mounted on the second fixed plate and cooperates with the Y-axis scale to indicate the Y-axis position.

[0006] In conjunction with the first possible implementation of the first aspect, the present invention provides a second possible implementation of the first aspect, wherein a locking member is mounted on the first fixing plate, the locking member cooperates with the X-guide rail, and the locking member is used to lock the first fixing plate relative to the X-guide rail.

[0007] In conjunction with the first possible implementation of the first aspect, the present invention provides a third possible implementation of the first aspect, wherein the first fixing plate is respectively equipped with limiting members at both ends in the Y direction, and the second fixing plate is located between the two limiting members.

[0008] In conjunction with the first aspect, this utility model provides a fourth possible implementation of the first aspect, wherein the Z-axis slide table includes a base, a guide plate, a scale, a first lead screw, a support, a lead screw connecting block, a second pointer, a fixing plate, a cover plate, and a first rotary drive component; The base is installed on the XY slide table. The guide plate, the scale, the first lead screw and the support are respectively connected to the base. The scale and the first lead screw are arranged parallel to each other and are both located between the guide plate and the support. The lead screw connecting block is fitted to the first lead screw, and the lead screw connecting block is connected to the fixed plate. The fixed plate is slidably fitted to the guide plate, and the fixed plate is provided with the second pointer. The cover plate is connected to the top of the support, and the first lead screw passes through the cover plate and is connected to the first rotary drive component.

[0009] In conjunction with the first aspect, this utility model provides a fifth possible implementation of the first aspect, wherein the head tube positioning assembly includes a connecting plate, a rotating support, a pin sleeve, a rotating shaft, and a head tube reference seat; The rotating support is connected to the connecting plate, and the connecting plate is connected to the Z-axis slide table; The head tube reference seat is rotatably connected to the rotating support via the rotating shaft, and the pin sleeve is provided between the rotating shaft and the rotating support.

[0010] In conjunction with the fifth possible implementation of the first aspect, this utility model provides a sixth possible implementation of the first aspect, wherein a head tube reference pin is installed on the head tube reference seat, and the head tube reference pin is adapted to the head tube of the frame.

[0011] In conjunction with the first aspect, this utility model provides a seventh possible implementation of the first aspect, wherein the measuring ruler includes: a mounting base, a Z-axis scale, a slider, and a locking pin; The mounting base is connected to the base plate, the Z-axis scale is connected to the mounting base, the slider is slidably engaged with the Z-axis scale, the locking pin is connected to the slider, and the locking pin passes through the slider and engages with the Z-axis scale.

[0012] In conjunction with the seventh possible implementation of the first aspect, this utility model provides an eighth possible implementation of the first aspect, wherein the measuring ruler further includes an XY-axis scale and a measuring stylus; The XY-axis scale is slidably fitted to the slider along the X or Y direction, and the probe is connected to the XY-axis scale.

[0013] In conjunction with the first aspect, this utility model provides a ninth possible implementation of the first aspect, wherein the flat fork plate positioning assembly includes: a translation slide rail, a flat fork support seat, a shaft seat, a reference pin, a connecting block, a second lead screw, and a second rotary drive component; The translation slide rail and the bearing seat are respectively connected to the base plate, and the flat fork support seat is installed on the translation slide rail; The second lead screw is arranged parallel to the translation slide rail, and the second lead screw is rotatably connected to the bearing seat; the flat fork support seat is fitted to the second lead screw, and the second rotary drive member is connected to the second lead screw; the connecting block is connected to the flat fork support seat, the reference pin is installed on the connecting block, and the reference pin is adapted to the flat fork mounting hole of the frame.

[0014] The present invention provides the following advantages: a measuring ruler is positioned between the XY-axis slide and the flat fork positioning assembly. The XY-axis slide, measuring ruler, and flat fork positioning assembly are respectively mounted on the base plate. The Z-axis slide is mounted on the XY-axis slide. The head tube positioning assembly is connected to the Z-axis slide. The head tube positioning assembly is adapted to the head tube of the frame, and the flat fork positioning assembly is adapted to the flat fork mounting hole of the frame. The head tube positioning assembly can be adjusted to move along the X, Y, and Z directions respectively. This allows the measuring platform to be applicable to various frame specifications and can separately mount and fix the head tube and flat fork of the frame, ensuring stable clamping and accurate measurement.

[0015] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, preferred embodiments are described below in detail with reference to the accompanying drawings. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the specific embodiments or related technologies of this utility model, the drawings used in the description of the specific embodiments or related technologies 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 from these drawings without creative effort.

[0017] Figure 1 A schematic diagram of a universal measurement platform for two-wheeled electric motorcycle frames provided in an embodiment of this utility model; Figure 2 Exploded view of the XY slide of the universal measurement platform for two-wheeled electric motorcycle frames provided in this embodiment of the utility model; Figure 3 An exploded view of the Z-axis slide of the universal measurement platform for two-wheeled electric motorcycle frames provided in this embodiment of the utility model; Figure 4 Exploded view of the head tube positioning assembly of the universal measurement platform for two-wheeled electric motorcycle frames provided in this embodiment of the utility model; Figure 5 A schematic diagram of the measuring ruler of the universal measuring platform for two-wheeled electric motorcycle frames provided in this embodiment of the utility model; Figure 6 A schematic diagram of the flat fork plate positioning assembly of the universal measurement platform for two-wheeled electric motorcycle frames provided in this embodiment of the utility model; Figure 7 A schematic diagram of a universal measurement platform for two-wheeled electric motorcycle frames and the frame under test provided in this embodiment of the utility model; Figure 8 A magnified view of the measuring ruler and the frame under test of the universal measuring platform for two-wheeled electric motorcycle frames provided in this embodiment of the utility model. Figure 1 ; Figure 9 A magnified view of the measuring ruler and the frame under test of the universal measuring platform for two-wheeled electric motorcycle frames provided in this embodiment of the utility model. Figure 2 ; Figure 10 A magnified view of the measuring ruler and the frame under test of the universal measuring platform for two-wheeled electric motorcycle frames provided in this embodiment of the utility model. Figure 3 .

[0018] Icons: 1-Base plate; 2-XY slide table; 201-Y-axis scale; 202-X-axis guide rail; 203-Locking component; 204-First fixing plate; 205-Limiting component; 206-Y-axis guide rail; 207-First pointer; 208-Second fixing plate; 3-Z-axis slide table; 301-Base; 302-Guide plate; 303-Scale; 304-First lead screw; 305-Support; 306-Lead screw connecting block; 307-Second pointer; 308-Fixing plate; 309-Cover plate; 310-First rotary drive component; 4-Head tube positioning assembly; 401-Support plate; 402-Connecting... 403-Rotating support; 404-Pin sleeve; 405-Rotating shaft; 406-Head tube reference seat; 407-Head tube reference pin; 5-Measuring scale; 501-Mounting base; 502-Z-axis scale; 503-XY-axis scale; 504-Slider; 505-Locking pin; 506-Locking plate; 507-Probe; 6-Flat fork plate positioning assembly; 601-Translation slide rail; 602-Flat fork support seat; 603-Shaft seat; 604-Bearing assembly; 605-Reference pin; 606-Connecting block; 607-Linear bearing; 608-Second lead screw; 609-Second rotary drive component. Detailed Implementation

[0019] 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.

[0020] 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., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and 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, and therefore should not be construed as a limitation on this utility model. Furthermore, the terms "first," "second," and "third" are only used to describe differences in name and should not be construed as indicating or implying relative importance. Physical quantities in formulas, unless otherwise specified, should be understood as basic quantities of the International System of Units (SI) base units, or derived quantities derived from basic quantities through mathematical operations such as multiplication, division, differentiation, or integration.

[0021] 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.

[0022] like Figure 1 As shown in the figure, the universal measurement platform for two-wheeled electric motorcycle frames provided in this embodiment of the present invention is used for high-precision, adjustable clamping and dimensional measurement of electric motorcycle frames of different specifications and models. The measurement platform, through the coordinated operation of a multi-degree-of-freedom adjustment mechanism and modular positioning components, achieves precise spatial positioning and stable fixation of the head tube and swingarm mounting parts, thereby ensuring repeatability and accuracy during the measurement process.

[0023] This universal measurement platform for two-wheeled electric motorcycle frames includes: a base plate 1, an XY-axis slide 2, a Z-axis slide 3, a head tube positioning assembly 4, a measuring ruler 5, and a fork plate positioning assembly 6. The measuring ruler 5 is located between the XY-axis slide 2 and the fork plate positioning assembly 6. The XY-axis slide 2, measuring ruler 5, and fork plate positioning assembly 6 are respectively mounted on the base plate 1. The Z-axis slide 3 is mounted on the XY-axis slide 2, and the head tube positioning assembly 4 is connected to the Z-axis slide 3. The head tube positioning assembly 4 is adapted to the head tube of the frame, and the fork plate positioning assembly 6 is adapted to the fork mounting holes of the frame. The base plate 1, as the basic support structure of the entire measurement platform, is made of high-strength cast iron or aluminum alloy, and its surface is precision machined to ensure flatness and parallelism. All other functional components are mounted on the base plate 1, and a spatial coordinate system is established based on it to ensure perpendicularity and positioning accuracy between each direction of movement. The XY-axis slide 2 is used to achieve two-dimensional movement and adjustment of the head tube positioning assembly 4 in the horizontal plane along the X and Y directions to adapt to the frame design requirements of different wheelbases, track widths, or geometric layouts. The Z-axis slide 3 allows for height adjustment of the head tube positioning assembly 4 to accommodate different head tube heights. Furthermore, the head tube positioning assembly 4, in conjunction with the head tube, and the swingarm positioning assembly 6, fix the swingarm, ensuring the stability of the frame under test and facilitating more accurate frame measurements by the measuring ruler 5.

[0024] like Figure 1 , Figure 2 and Figure 7As shown, the XY-axis slide 2 includes: a Y-axis scale 201, an X-axis guide rail 202, a first fixed plate 204, a Y-axis guide rail 206, a first pointer 207, and a second fixed plate 208; the X-axis guide rail 202 is connected to the base plate 1, and the first fixed plate 204 is mounted on the X-axis guide rail 202; the Y-axis guide rail 206 is connected to the first fixed plate 204, and the second fixed plate 208 is mounted on the Y-axis guide rail 206; the Y-axis scale 201 is set on the first fixed plate 204, and the first pointer 207 is set on the second fixed plate 208 and cooperates with the Y-axis scale 201 to indicate the Y-axis position.

[0025] The X-axis guide rail 202 is fixedly connected to the base plate 1, and its extension direction is defined as the X-axis direction. The first fixed plate 204 is slidably engaged with the X-axis guide rail 202 through a slider structure, and can be translated along the X-axis under external force. To prevent loosening and lock the current position, the first fixed plate 204 is provided with a locking element 203 (such as an eccentric locking handle or a threaded clamping device). The locking element 203 can act on the side or top surface of the X-axis guide rail 202 to lock the position of the first fixed plate 204 relative to the X-axis guide rail 202.

[0026] A Y-axis guide rail 206 is mounted on the first fixed plate 204, extending perpendicularly to the X-axis guide rail 202, and defined as the Y-axis direction. Another second fixed plate 208 is slidably engaged with the Y-axis guide rail 206 via a slider structure, thereby forming a two-stage sliding structure, so that the whole forms an "XY" orthogonal moving platform.

[0027] To achieve accurate reading of the position in the Y direction, the Y-axis scale 201 is set on the first fixed plate 204 and arranged along the Y direction; while the first pointer 207 is installed on the second fixed plate 208 and is set opposite to the Y-axis scale 201 to indicate the current position value in the Y direction.

[0028] Furthermore, the first fixing plate 204 has limiters 205 installed at both ends in the Y direction, and the second fixing plate 208 is located between the two limiters 205. When it moves to the limit position, it touches the limiter 205 to avoid exceeding the effective stroke and causing equipment damage or measurement errors.

[0029] Through the above structure, the XY slide 2 realizes the precise positioning and rapid adjustment of the head tube positioning component 4 in the horizontal plane, which is suitable for the range of changes in the head tube position of various vehicle models.

[0030] like Figure 1 , Figure 3 and Figure 7As shown, the Z-axis slide 3 includes a base 301, a guide plate 302, a scale 303, a first lead screw 304, a support 305, a lead screw connecting block 306, a second pointer 307, a fixing plate 308, a cover plate 309, and a first rotary drive component 310; the base 301 is mounted on the XY-axis slide 2, and the guide plate 302, scale 303, first lead screw 304, and support 305 are respectively connected to the base 301, and the scale 303 is connected to the first lead screw 304. 04 are arranged in parallel and are located between the guide plate 302 and the support 305; the lead screw connecting block 306 is engaged with the first lead screw 304, and the lead screw connecting block 306 is connected to the fixing plate 308. The fixing plate 308 is slidably engaged with the guide plate 302, and the fixing plate 308 is provided with a second pointer 307; the cover plate 309 is connected to the top of the support 305, the first lead screw 304 passes through the cover plate 309 and is connected to the first rotary drive member 310.

[0031] The lead screw connecting block 306 is threaded onto the first lead screw 304 and moves up and down in the Z direction as the first lead screw 304 rotates. The fixing plate 308 is fixedly connected to the lead screw connecting block 306 and simultaneously slidably embedded in the guide plate 302. The guide plate 302 provides linear guidance, ensuring that the fixing plate 308 does not deflect or sway during lifting. A second pointer 307 is provided on the fixing plate 308, corresponding to the scale on the ruler 303, facilitating real-time reading of the height position in the Z direction. The top end of the first lead screw 304 passes through the cover plate 309 located on top of the support 305 and is connected to the first rotary drive component 310 (such as a handwheel, worm gear reducer, or servo motor). By manually or automatically rotating the first rotary drive component 310, the first lead screw 304 can be rotated, thereby driving the lead screw connecting block 306 and the fixing plate 308 to achieve smooth lifting and lowering. Thus, the Z-axis slide 3 enables continuous vertical adjustment of the head tube positioning component 4, further expanding the measurement platform's compatibility with different frame head heights.

[0032] like Figure 1 , Figure 4 and Figure 7 As shown, the head tube positioning assembly 4 includes a connecting plate 402, a rotating support 403, a pin sleeve 404, a rotating shaft 405, and a head tube reference seat 406. The rotating support 403 is connected to the connecting plate 402, and the connecting plate 402 is connected to the Z-axis slide 3. A support plate 401 connects the connecting plate 402 and the Z-axis slide 3, improving the connection stability between the connecting plate 402 and the Z-axis slide 3. The head tube reference seat 406 is rotatably connected to the rotating support 403 via the rotating shaft 405, and a pin sleeve 404 is provided between the rotating shaft 405 and the rotating support 403. Preferably, the pin sleeve 404 adopts a self-lubricating copper sleeve or a rolling bearing structure, which ensures both rotational flexibility and the ability to withstand certain radial loads, extending its service life.

[0033] In this embodiment, a head tube reference pin 407 is mounted on the head tube reference seat 406, and the head tube reference pin 407 is adapted to the head tube of the frame. The diameter, taper, and tolerance of the reference pin are designed according to the standard inner diameter of the head tube of common electric motorcycle frames, and multiple reference pins of different specifications can be selected to adapt to different models. In use, the head tube reference pin 407 is inserted into the head tube hole of the frame to achieve quick positioning and rough fixation of the front end of the frame. In addition, since the head tube reference seat 406 can be finely adjusted in angle via the rotation shaft 405, even when the head tube of the frame is slightly tilted, a good fit can be achieved by tilting the head tube reference seat 406 around the axis of the rotation shaft 405, improving the adaptability and stability of the clamping.

[0034] like Figure 1 , Figure 5 , Figure 7 , Figure 8 , Figure 9 and Figure 10 As shown, the measuring scale 5 includes: a mounting base 501, a Z-axis scale 502, a slider 504, and a locking pin 505. The mounting base 501 is connected to the base plate 1, the Z-axis scale 502 is connected to the mounting base 501, the slider 504 is slidably engaged with the Z-axis scale 502, and the locking pin 505 is connected to the slider 504, passing through the slider 504 and engaging with the Z-axis scale 502. The slider 504, slidably engaged with the Z-axis scale 502, allows adjustment of the probe height by moving it up and down. The locking pin 505 is threaded onto the slider 504; tightening it presses against the Z-axis scale 502, thus locking the position of the slider 504.

[0035] In addition, the measuring scale 5 also includes an XY-axis scale 503 and a probe 507; the XY-axis scale 503 slides along the X or Y direction and is fitted to the slider 504 (the installation direction can be selected according to the measurement direction), and the probe 507 is connected to the XY-axis scale 503. The mounting base 501 is connected to the base plate 1 via a locking plate 506. The locking plate 506 has mounting holes corresponding to the base plate 1, and is fixed by bolts or pins fitted into these mounting holes. When the measurement direction needs to be changed, the mounting base 501 and the locking plate 506 can be rotated together by 90 degrees parallel to the Z-axis. In addition, the XY-axis scale 503 can adopt a segmented structure. The two adjacent segments are hinged together by a hinge axis parallel to the Z-axis. When the probe 507 abuts against the measured point on the frame, the XY-axis scale 503, which is bent at 90 degrees, can measure the X-axis and Y-axis coordinates of the measured point. The slider 504 corresponds to the Z-axis scale 502 to measure the Z-axis coordinate.

[0036] It should be noted that the probe 507 is connected below the XY-axis scale 503, and its tip is used to contact specific measurement points on the frame (such as the extension point of the riser centerline, the main beam connection point, etc.). By reading the values ​​of the XY-axis scale 503 and the Z-axis scale 502, the spatial coordinate data of that point is obtained. As a composite three-dimensional measurement tool, the measuring scale 5, in conjunction with other positioning elements of the platform, can be used to verify the overall geometric consistency of the frame, and is especially suitable for quality sampling and process verification in mass production.

[0037] like Figure 1 , Figure 6 and Figure 7 As shown, the swingarm positioning assembly 6 includes: a translation slide rail 601, a swingarm support seat 602, a bearing seat 603, a reference pin 605, a connecting block 606, a second lead screw 608, and a second rotary drive component 609. The translation slide rail 601 and the bearing seat 603 are respectively connected to the base plate 1, and the swingarm support seat 602 is mounted on the translation slide rail 601. The second lead screw 608 is arranged parallel to the translation slide rail 601 and is rotatably connected to the bearing seat 603. The swingarm support seat 602 is fitted with the second lead screw 608, and the second rotary drive component 609 is connected to the second lead screw 608. The connecting block 606 is connected to the swingarm support seat 602, and the reference pin 605 is mounted on the connecting block 606 and is adapted to the swingarm mounting hole of the frame. The second lead screw 608 is rotatably connected to the bearing seat 603 through a bearing assembly 604, thereby reducing rotational resistance. A linear bearing 607 is installed between the second lead screw 608 and the swingarm support 602 to reduce the resistance of the swingarm support 602 sliding axially along the second lead screw 608. A second rotary drive 609 (such as a handwheel or stepper motor) is connected to one end of the second lead screw 608 to drive its rotation, thereby achieving precise feeding of the swingarm support 602. The size and shape of the reference pin 605 are adapted to the mounting holes on the swingarm of the electric motorcycle frame, and it can achieve rear positioning after insertion. By adjusting the rotation of the second lead screw 608, the two ends of the second lead screw 608 are respectively fitted with swingarm support 602 with different helical threads, thereby adjusting the distance between the two swingarm support 602, so that the two reference pins 605 can be fitted to frames with different opening sizes (distance between the two swingarms).

[0038] In summary, the measurement platform described in this embodiment has the advantages of reasonable structure, flexible adjustment, accurate positioning, and strong versatility. It is particularly suitable for application scenarios in electric motorcycle manufacturers, third-party testing institutions, and R&D laboratories where efficient and reliable measurement of frame geometric accuracy is required.

[0039] 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 universal measurement platform for two-wheeled electric motorcycle frames, characterized in that, include: Base plate (1), XY slide table (2), Z slide table (3), head tube positioning assembly (4), measuring ruler (5), and flat fork plate positioning assembly (6); The measuring ruler (5) is located between the XY slide (2) and the flat fork plate positioning assembly (6). The XY slide (2), the measuring ruler (5) and the flat fork plate positioning assembly (6) are respectively installed on the base plate (1). The Z-axis slide (3) is mounted on the XY-axis slide (2), and the head tube positioning assembly (4) is connected to the Z-axis slide (3). The head tube positioning assembly (4) is adapted to the head tube of the frame, and the flat fork plate positioning assembly (6) is adapted to the flat fork mounting hole of the frame.

2. The universal measurement platform for two-wheeled electric motorcycle frames according to claim 1, characterized in that, The XY slide table (2) includes: a Y-axis scale (201), an X-axis guide rail (202), a first fixed plate (204), a Y-axis guide rail (206), a first pointer (207), and a second fixed plate (208); The X-guide rail (202) is connected to the base plate (1), and the first fixing plate (204) is installed on the X-guide rail (202); The Y-guide rail (206) is connected to the first fixing plate (204), and the second fixing plate (208) is mounted on the Y-guide rail (206); The Y-axis scale (201) is mounted on the first fixed plate (204), and the first pointer (207) is mounted on the second fixed plate (208) and cooperates with the Y-axis scale (201) to indicate the Y-axis position.

3. The universal measurement platform for two-wheeled electric motorcycle frames according to claim 2, characterized in that, A locking member (203) is installed on the first fixing plate (204), the locking member (203) cooperates with the X guide rail (202), and the locking member (203) is used to lock the first fixing plate (204) relative to the X guide rail (202).

4. The universal measurement platform for two-wheeled electric motorcycle frames according to claim 2, characterized in that, The first fixing plate (204) has limiting members (205) installed at both ends in the Y direction, and the second fixing plate (208) is located between the two limiting members (205).

5. The universal measurement platform for two-wheeled electric motorcycle frames according to claim 1, characterized in that, The Z-axis slide (3) includes a base (301), a guide plate (302), a scale (303), a first lead screw (304), a support (305), a lead screw connecting block (306), a second pointer (307), a fixing plate (308), a cover plate (309), and a first rotary drive component (310). The base (301) is mounted on the XY slide table (2). The guide plate (302), the scale (303), the first lead screw (304) and the support (305) are respectively connected to the base (301). The scale (303) and the first lead screw (304) are arranged parallel to each other and are both located between the guide plate (302) and the support (305). The lead screw connecting block (306) is fitted to the first lead screw (304), and the lead screw connecting block (306) is connected to the fixing plate (308). The fixing plate (308) is slidably fitted to the guide plate (302), and the fixing plate (308) is provided with the second pointer (307). The cover plate (309) is connected to the top of the support (305), and the first lead screw (304) passes through the cover plate (309) and is connected to the first rotary drive (310).

6. The universal measurement platform for two-wheeled electric motorcycle frames according to claim 1, characterized in that, The head tube positioning assembly (4) includes a connecting plate (402), a rotating support (403), a pin sleeve (404), a rotating shaft (405), and a head tube reference seat (406). The rotating support (403) is connected to the connecting plate (402), and the connecting plate (402) is connected to the Z-axis slide (3); The head tube reference seat (406) is rotatably connected to the rotating support (403) via the rotating shaft (405), and the pin sleeve (404) is provided between the rotating shaft (405) and the rotating support (403).

7. The universal measurement platform for two-wheeled electric motorcycle frames according to claim 6, characterized in that, The head tube reference base (406) is equipped with a head tube reference pin (407), which is adapted to the head tube of the frame.

8. The universal measurement platform for two-wheeled electric motorcycle frames according to claim 1, characterized in that, The measuring ruler (5) includes: a mounting base (501), a Z-axis scale (502), a slider (504), and a locking pin (505); The mounting base (501) is connected to the base plate (1), the Z-axis scale (502) is connected to the mounting base (501), the slider (504) is slidably engaged with the Z-axis scale (502), the locking pin (505) is connected to the slider (504), and the locking pin (505) passes through the slider (504) and engages with the Z-axis scale (502).

9. The universal measurement platform for two-wheeled electric motorcycle frames according to claim 8, characterized in that, The measuring ruler (5) also includes an XY-axis scale (503) and a probe (507); The XY-axis scale (503) is slidably fitted to the slider (504) along the X or Y direction, and the probe (507) is connected to the XY-axis scale (503).

10. The universal measurement platform for two-wheeled electric motorcycle frames according to claim 1, characterized in that, The flat fork positioning assembly (6) includes: a translation slide rail (601), a flat fork support seat (602), a bearing seat (603), a reference pin (605), a connecting block (606), a second lead screw (608), and a second rotary drive component (609). The translation slide rail (601) and the bearing seat (603) are respectively connected to the base plate (1), and the flat fork support seat (602) is installed on the translation slide rail (601); The second lead screw (608) is arranged parallel to the translation slide rail (601), and the second lead screw (608) is rotatably connected to the bearing seat (603); the flat fork support seat (602) is fitted to the second lead screw (608), and the second rotary drive member (609) is connected to the second lead screw (608); the connecting block (606) is connected to the flat fork support seat (602), the reference pin (605) is installed on the connecting block (606), and the reference pin (605) is adapted to the flat fork mounting hole of the frame.

Images