A clamping device and a measuring system

Abstract

The embodiment of the application discloses a clamping device and a measuring system. The positioning of the first base body and the second base body of the clamping device in the clamping state is only related to the cooperation accuracy of the first cooperation surface and the second cooperation surface. As long as the machining accuracy of the first cooperation surface and the second cooperation surface is accurately controlled, the consistency of the pressing force between the pressing component and the swing arm module can be improved, the swing arm module is in the flattened state, and the accuracy of the measurement of the flattened angle of the swing arm module is improved.

Description

Technical Field

[0001] This application relates to the field of testing tooling technology for swing arm modules, and in particular to a clamping device and a measurement system. Background Technology

[0002] The two side shells of the foldable electronic device are connected to a pivot mechanism, which enables the relative folding and unfolding of the two shells. The pivot mechanism includes one or more swing arm modules. Each swing arm module includes a base and two swing arms. The inner ends of the two swing arms are hinged to the base, and the outer ends are connected to the two side shells respectively. The swing arms rotate around the base, thereby allowing the two side shells to unfold and fold relative to each other. The flattening angle of the two swing arms in the swing arm module directly affects the unfolding posture of the foldable electronic device. In particular, the thinner the foldable electronic device, the more sensitive the flattening angle of the swing arm module is to the unfolding of the foldable electronic device.

[0003] Accurate measurement of the flattening angle of the swing arm module is of great significance for the design of foldable electronic devices. Summary of the Invention

[0004] This application provides a clamping device that improves the consistency of forces acting on a swing arm module. This application also provides a measurement system including the above-described clamping device.

[0005] This application provides a clamping device, including a frame, on which:

[0006] A first base and a second base, at least one of which is movably connected to the frame. The first base is provided with a contouring seat and a door panel contouring component, which are adapted to the swing arm module to position the swing arm module on the first base. The first base is provided with a first mating surface. The second base is equipped with a clamping component and has a second mating surface.

[0007] A clamping mechanism is connected to the frame. The clamping mechanism is used to maintain the first base and the second base in a clamping state. When the first base and the second base are in the clamping state, the first mating surface and the second mating surface are in contact, and the pressing component abuts against the swing arm module on the first base so that the swing arm module is in a flattened state.

[0008] In this embodiment, the clamping mechanism is mounted on the frame. The clamping mechanism can apply force to the first base and / or the second base, so that the first base and the second base are in a clamped state (mold closed state). The positioning of the first base and the second base in the clamped state is achieved by the abutting fit of the first mating surface and the second mating surface. That is to say, the positioning of the first base and the second base in the clamped state is only related to the fitting accuracy of the first mating surface and the second mating surface. As long as the machining accuracy of the first mating surface and the second mating surface is precisely controlled, the consistency of the clamping force between the clamping component and the swing arm module can be improved, so that the swing arm module is in a flattened state, thereby improving the accuracy of the subsequent measurement of the flattened angle of the swing arm module.

[0009] In one example, the surface of the first substrate mounting base has at least two protrusions, which protrude towards the second substrate. The first mating surface is located on the end face of the protrusion away from the template. By placing the first mating surface on the end face of the protrusion, the contact area can be minimized and the mating accuracy can be relatively high while ensuring the fit between the first and second substrates.

[0010] In one example, each protrusion also has a first guide hole, and the second base also has a guide pin. The guide pin engages with the first guide hole to guide the relative movement of the first and second bases. The first guide hole is located on the protrusion and does not occupy space in other parts of the first base. The overall structure of the first component is simple and compact.

[0011] In one example, all the protruding pillars are evenly distributed around the circumference of the contour base. This results in a more uniform stress distribution on the first and second substrates.

[0012] In one example, the number of clamping components is at least two, and the position of each clamping component relative to the second base is adjustable; the clamping device further includes:

[0013] An adjustment mechanism is used to adjust the position of each clamping component on the second base, thereby adjusting the contact force between each clamping component and the swing arm module. This allows the contact force between each clamping component and the swing arm module to be adjustable, ensuring that the contact forces are essentially equal or that the differences between the contact forces are within a predetermined range. In other words, the contact force of each clamping component on the swing arm module is essentially consistent, resulting in a stable clamping force on the swing arm module, with fluctuations reduced to less than or equal to a few tenths of a percent. This is beneficial for further improving the accuracy of subsequent measurements using the swing arm module. Experiments have shown that the dynamic repeatability can reach within a few tenths of a degree, and the support measurement system has the ability to perform precise range divisions.

[0014] In one example, each clamping component is an elastic clamping component, which extends and retracts along the arrangement direction of the first and second bases, and elastically abuts against the swing arm module. The elastic abutment between the clamping component and the swing arm module allows for adjustment of the abutment force between the elastic clamping component and the swing arm module by adjusting the amount of extension and retraction of the elastic clamping component, resulting in high adjustment sensitivity.

[0015] In one example, each clamping component includes a mounting base, an elastic body, and a stop member. The elastic body is pressed between the mounting base and the stop member, and the stop member is used to abut against the swing arm module. The mounting base is movably connected to the second base, and an adjustment mechanism adjusts the movement of the mounting base relative to the second base. The clamping component has a simple structure and is easy to adjust.

[0016] In one example, the second substrate is further provided with a second guide hole, which corresponds one-to-one with the clamping component. The second guide hole extends along the extension and contraction direction of the elastic body, and the elastic body is at least partially located inside the second guide hole. The second guide hole can guide the first or second elastic body to prevent it from tilting.

[0017] In one example, a block is also included, which is fixed to the second base and located between the mounting base and the abutment. All the second guide holes are integrated into the first block. The three second guide holes guiding the first elastomer and the two second elastomers are all integrated into the block, which helps to simplify the structure of the second component.

[0018] In one example, the mounting base and the second base are slidably fitted together. One of the mounting base and the second base is provided with a groove, and the other is provided with a slide rail that mates with the groove. The groove and slide rail fit together simply and provides high motion stability.

[0019] In one example, there are three clamping components: a first clamping component and two second clamping components. The two second clamping components are located on both sides of the first clamping component. The swing arm module has a base and swing arms rotatably connected to both sides of the base. When the first and second bases are in a clamping state, the first clamping component abuts against the door panel contour piece, and the two second clamping components abut against the relatively far ends of the two swing arms. These three clamping components meet the flattening requirements of the swing arm module, and the structure is relatively simple.

[0020] In one example, the side of the door panel conforming part away from the first base is a planar structure, and the abutment of the first pressing component abuts against the planar structure surface by surface. The surface contact area is relatively large, and the stability is also high.

[0021] In one example, a guide frame is also included, fixed to the second base. One of the abutment and the guide frame is provided with a third guide hole, and the other is provided with a guide protrusion. The guide protrusion is inserted into the third guide hole. The guide frame is also provided with a through hole to avoid the elastic body of the first pressing component. In this embodiment, the guide frame is further provided in the second component to guide the first abutment, so that the first abutment abuts against the swing arm module in a preset direction, which is conducive to the surface contact between the first abutment and the door panel contour part.

[0022] In one example, linear bearings are also included, each corresponding to a second clamping component. Each linear bearing is fixed to the second base, and the abutment portion of the second clamping component is fitted into the inner hole of the linear bearing. The friction between the linear bearing and the second abutment is low, and the straightness of the guide is relatively high.

[0023] In one example, at least two positioning shafts are also included. One end of each positioning shaft is fixed to the first base. Coaxial positioning through holes are provided on the contour base and the door panel contour piece, with the positioning shaft portion located within these holes. The base also has positioning through holes, and the positioning shafts are located inside the contour base, the door panel contour piece, and the base. This embodiment facilitates rapid installation of the contour base, the door panel contour piece, and the base.

[0024] In one example, the contour mount is detachably mounted to the first base;

[0025] Alternatively / and, the door panel contour piece can be detachably installed on the contour base;

[0026] Alternatively / and, the door panel contouring component is connected and fixed to the contouring base by magnetic force. The contouring base, door panel contouring component, and first base are detachably connected to each other, facilitating assembly and replacement. The clamping device can clamp different swing arm modules, improving the flexibility of the clamping device.

[0027] In one example, force sensors are also included, each corresponding to a clamping component. These force sensors detect the abutment force between the clamping component and the swing arm module. An adjustment mechanism adjusts the position of the corresponding clamping component on the second base based on the signals detected by the respective force sensors. The force sensors can monitor the interaction between the clamping components and the swing arm module in real time, allowing operators to more intuitively understand the forces between each clamping component and the swing arm module, preventing unnoticed clamping force failures during use. When the forces between the clamping components and the swing arm module do not meet requirements, the adjustment mechanism adjusts the position of each clamping component on the second base based on the signals detected by the force sensors. In other words, the adjustment mechanism can adjust the forces between the clamping components and the swing arm module, further improving the consistency of the forces between each clamping component and the swing arm module. It is expected that the dynamic repeatability of the 900° deployment angle of the swing arm module will reach within 0.x°, improving measurement accuracy.

[0028] In one example, the adjustment mechanism includes a threaded rod, which corresponds one-to-one with the clamping component. The threaded rod is threadedly connected to the second base and is located on the side of the clamping component away from the first base. The threaded rod abuts against the clamping component. The threaded pair offers high adjustment flexibility, and when the thread pitch is small, it allows for minute adjustments to the contact force between the clamping component and the swing arm module.

[0029] In one example, a first base is movably supported on a frame, and a second base is positioned relative to the frame in the direction of movement of the first base. The clamping mechanism includes a drive unit and a transmission mechanism. The drive unit is connected to the input end of the transmission mechanism, and the output end of the transmission mechanism is connected to the first base. The drive unit drives the first base to move relative to the frame through the transmission mechanism, so as to move closer to or away from the second base. This structure is relatively simple.

[0030] In one example, the drive unit includes a handle that can be locked in a first position to keep the first base and the second base in a clamping state; the manual adjustment structure is simple and low in cost.

[0031] Alternatively, the drive unit includes a power component, the power output end of which is connected to the input end of the transmission mechanism. The power component enables automatic control of the clamping device with high adjustment precision.

[0032] In one example, the clamping mechanism includes a stop fixed to the frame, located on the side of the second base away from the first base. The stop restricts the movement of the second base away from the first base. When the first and second bases are in a clamped state, they are clamped between the stop and the power output end of the transmission mechanism. In this embodiment, only one side of the first base needs to be equipped with the transmission mechanism, resulting in a simple clamping device structure that is easy to operate.

[0033] This application also provides a measurement system, including an image vision system and a clamping device as described above, wherein the image vision system is used to acquire an image of the swing arm module in the clamping device.

[0034] The measurement system in this application embodiment includes the above-mentioned clamping device, so the measurement system also has the above-mentioned technical effects of the clamping device. Attached Figure Description

[0035] Figure 1 This is a schematic diagram of a foldable electronic device provided in one embodiment of this application;

[0036] Figure 2 for Figure 1 A schematic diagram of a foldable electronic device in a folded state;

[0037] Figure 3 for Figure 1A schematic diagram of the structure of the swing arm module in the flattened state in the foldable electronic device;

[0038] Figure 4 This application provides a measurement system for measuring a swing arm module in a flattened state, as described in one embodiment.

[0039] Figure 5 This is a schematic diagram of the clamping device in one embodiment of this application;

[0040] Figure 6 for Figure 5 An exploded view of the first component in the clamping device shown.

[0041] Figure 7 for Figure 6 The diagram shows the structure in an assembled state;

[0042] Figure 8 for Figure 7 CC section view of the structure shown;

[0043] Figure 9 for Figure 5 An exploded view of the first and second components in the clamping device shown.

[0044] Figure 10 for Figure 9 An assembly diagram of the structure shown;

[0045] Figure 11 for Figure 10 A cross-sectional view of the structure shown;

[0046] Figure 11-1 for Figure 5 A simplified diagram of the clamping device shown.

[0047] Figure 12 for Figure 11 A magnified view of a portion of the structure shown at point P;

[0048] Figure 13 for Figure 7 A schematic diagram of the forces acting on the swing arm module in the structure shown.

[0049] Figure 14 for Figure 13 The diagram shows the force distribution of a local structure of the swing arm module.

[0050] Figure 15 for Figure 9 The diagram shows the structure of the second component, with the top wall, side walls, and outer shell of the adjustment mechanism hidden.

[0051] Figure 16 for Figure 15 BB section view of the structure shown;

[0052] Figure 17 for Figure 9 The diagram shown is a top view of the second component in the structure, with the top wall and the outer shell at the adjustment mechanism hidden.

[0053] Figure 18 for Figure 17 A cross-sectional view of B1-B1 in the structure shown;

[0054] Figure 19 for Figure 18 An enlarged schematic diagram of point P1 in the structure shown.

[0055] Figure 20 This is a schematic diagram of the clamping device in another embodiment of this application.

[0056] in, Figures 1 to 20 The one-to-one correspondence between the reference numerals and component names in the attached figures is shown below:

[0057] 1000 Clamping device; 100 Frame; 101 Slide rail; 102 First support; 103 Second support;

[0058] 200 Clamping mechanism; 201 Handle; 202 First link; 203 Second link; 204 Third link; 205 Transmission mechanism; 206 Stop;

[0059] 300 First component; 301 First base; 301A First mating surface; 3011 Protruding post; 302 Contouring seat; 303 Door panel contouring part; 304 Connector; 305 Positioning shaft; 3A First guide hole;

[0060] 400 Second component; 401 Second base; 4011 End face; 401A Second mating surface; 4A Guide pin; 4012 Side wall; 40121 Seat; 4012A Slide groove; 4013 First vertical wall; 4014 Second vertical wall; 4015 Bottom wall; 4016 Top wall; 402 Housing; 404 Pressing component; 4041 First pressing component; 40411 First mounting base; 40412 First elastic body; 40413 First abutment; 404131 Third guide hole; 4 042 Second clamping component; 40421 Second mounting base; 404211 Slide rail; 40422 Second elastic body; 40423 Second abutment; 405 Guide frame; 4051 Guide protrusion; 4052 Locking block; 406 Block; 4061 Second guide hole; 408 Linear bearing; 420 Adjusting mechanism; 421 First adjusting component; 422 Second adjusting component; 4221 Threaded rod; 4222 Nut; 4223 Ball; 4224 Locking component; 430 Force sensor;

[0061] 500 Image Vision System;

[0062] 600 rotating arm;

[0063] 700-stage platform;

[0064] 800 system installation body;

[0065] 900 Swing arm module; 901 Base; 902 First swing arm;

[0066] 1. Rotating shaft mechanism; 2. Housing; 3. Flexible screen; Specific Implementation

[0067] Regarding the measurement of the flattening angle of the swing arm module mentioned in the background art, the inventors of this application have conducted extensive research and found that the current main method for measuring the flattening angle of the swing arm module is as follows: The swing arm module is positioned in an unfolded state using a clamping device, and then an image vision system (e.g., a 2.5D measuring device) is used to acquire images of the swing arm module, followed by analysis of the swing arm module's structure. The clamping stability of the clamping device directly affects the subsequent analysis results. The flattening angle is the angle at which the swing arm module is in its flattened state.

[0068] Currently, there are two main types of clamping devices for swing arm modules: The first type is a snap-fit ​​type pressing structure device. This device includes an upper mold and a lower mold. When the upper and lower molds are closed, the base and two swing arms of the swing arm module are pressed between the upper and lower molds. The upper and lower molds are relatively fixed by the snap-fit ​​structure, and the swing arm module is in a flattened state. The number of snap-fits is limited, and it is difficult to achieve perfect consistency in the machining accuracy of all snap-fits and the machining accuracy of their mating positions. This results in the upper mold tilting relative to the lower mold when the snap-fits are locked, leading to inconsistent forces applied to the two swing arms and the base. The second type is a snap-locking device. This device also includes an upper mold and a lower mold. When the upper and lower molds are closed, the base and two swing arms of the swing arm module are pressed between the upper and lower molds, which are fixed by a snap-lock structure. Similarly, the snap-locking method suffers from inconsistent forces applied to the two swing arms and the base due to the difficulty in achieving perfect consistency in the machining accuracy of all snap-fits.

[0069] In addition, once the upper and lower molds of the two devices mentioned above are locked, the clamping force applied to each position of the swing arm module is not adjustable.

[0070] Therefore, overcoming at least one of the above-mentioned defects is a technical problem that urgently needs to be solved by those skilled in the art.

[0071] To enable those skilled in the art to better understand the technical solutions of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0072] The swing arm module provided in this application embodiment can be applied to foldable electronic devices, which can be mobile terminals such as mobile phones, tablets, tablet accessories, wearable devices, in-vehicle devices, augmented reality (AR) / virtual reality (VR) devices, laptops, ultra-mobile personal computers (UMPCs), netbooks, personal digital assistants (PDAs), etc., or professional shooting equipment such as digital cameras, SLR cameras / mirrorless cameras, action cameras, gimbal cameras, drones, etc. This application embodiment does not limit the specific type of foldable electronic device. For ease of understanding, the following description uses a mobile phone as an example of a foldable electronic device.

[0073] Please combine Figure 1 and Figure 2 Understanding, among which Figure 1 The central axis S is marked in the diagram. The foldable electronic device provided in this embodiment includes a flexible screen 3, two housings 2, and a pivot mechanism 1. The two housings 2 are connected by the pivot mechanism 1, and the housings 2 are rotatably connected to the pivot mechanism 1. The two housings 2 can rotate relative to the central axis S of the pivot mechanism 1, allowing the two housings 2 to be folded and unfolded relative to each other. For mobile phones, the housing 2 can be a mid-frame. The housing 2 depends on the foldable electronic device and will not be specifically described in this article. The following text will continue to introduce the technical solution and technical effects using the housing 2 as the mid-frame.

[0074] At least a portion of the flexible screen 3 can be supported on and connected to the mid-frame. During the relative folding and unfolding of the two mid-frames, the flexible screen 3 is simultaneously in a folded and unfolded state. The structures of the left and right mid-frames can be identical or not completely identical. The specific structure of the two mid-frames can be determined based on the specific product and is not specifically limited in this article.

[0075] Please refer to this again. Figure 1 In this embodiment of the application, the rotating shaft mechanism 1 further includes at least one swing arm module 900. Figure 1 The image shows only the installation position of one swing arm module 900. The number of swing arm modules 90 in the pivot mechanism 1 can also be two or more. For example, swing arm modules can be set at both ends of the pivot mechanism 1 along the central axis S, or a swing arm module 900 can be set at the middle position between the two ends of the pivot mechanism 1. The number of swing arm modules 900 can be reasonably set according to the specific structure of the electronic device.

[0076] Please refer to Figure 3In this embodiment, the swing arm module 900 includes a base 901 and two swing arms 902. The base 901 not only provides a mounting foundation for the swing arms 902, but also can be provided with structures that mate with other components forming the rotating shaft mechanism. The base 901 has structures, such as arc-shaped surfaces, that rotatably engage with the two swing arms 902. The rotation axes of the base 901 and the swing arms 902 are parallel to the central axis S. A connecting plate (not shown in the figure) is connected to the end of the swing arm 902 away from the base 901. The end of the swing arm 902 away from the base 901 is hinged, pivoted, fixedly connected, or otherwise connected to the connecting plate on the corresponding side. When the swing arm rotates around the base, the swing arm drives the connecting plate connected to it to rotate relative to the base 901.

[0077] In this embodiment, the two housings 2 are respectively connected to connecting plates on their respective sides. The housings 2 and the connecting plates are fixedly connected, for example, by bolts. Of course, the connecting plates 2 and the housings 2 can also be fixedly connected in other ways, such as by bonding or snap-fitting. For some foldable electronic devices, the connecting plates and housings 2 can also be made into an integral structure, that is, the connecting plates are part of the housings. For mobile phones, the connecting plates are also called door panels.

[0078] Please refer to Figure 4 , Figure 4 This application provides a measurement system for measuring a swing arm module in a flattened state, as described in one embodiment. Figure 5 This is a schematic diagram of the clamping device in one embodiment of this application.

[0079] The measurement system provided in this application includes a system mounting body 800, on which a stage 700, an image vision system 500, and a rotating arm 600 are mounted. The stage 700 is horizontally positioned and can rotate relative to the system mounting body 800 in a horizontal plane (XY plane in the figure), wherein the direction perpendicular to the paper is the Y-axis direction of the coordinate system (not shown in the figure). A clamping device 1000 is placed on the stage 700. The rotating arm 600 and the image vision system 500 are located above the stage 700. The rotating arm 600 is rotatably connected to the system mounting body 800 and can rotate in a vertical plane (YZ plane). The image vision system 500 is fixed to the rotating arm 600, and the lens of the image vision system 500 is usually facing the stage 700 to acquire images or videos from the camera arm module 900.

[0080] In this embodiment, the clamping device 1000 is used to clamp and fix the swing arm module 900, and can position the swing arm module 900 in a flattened state. Please refer to... Figure 5 , Figure 5This is a schematic diagram of the structure of the clamping device 1000 in one embodiment of this application. The clamping device 1000 in this embodiment includes a frame 100, on which a first component 300 and a second component 400 are disposed. At least one of the first component 300 and the second component 400 is movable relative to the frame 100, that is, the first component 300 and the second component 400 can move closer to or further away from each other.

[0081] Please combine Figure 6 , Figure 7 and Figure 8 Understood, in this embodiment, the first component 300 includes a first base 301, a contour base 302, and a door panel contour member 303. The first base 301 can be movably connected to the frame 100, such as... Figure 5 As shown, a slide groove 101 is provided on the frame 100, and the first base 301 is located inside the slide groove 101. The first base 301 can reciprocate along the slide groove 101. The contouring seat 302 has a structure that is adapted to the base for installation. The structure of the contouring seat 302 can be determined according to the specific structure of the base. As mentioned above, the swing arm module 900 needs to be connected to the door panel (connecting plate) in the electronic device. In this embodiment, the door panel contouring component 303 in the first component 300 is used to simulate the shape of the connecting plate. The two swing arms 902 cooperate with the door panel contouring component 303 to simulate the cooperation relationship between the two swing arms 902 and the door panel when the two swing arms 902 are installed in the electronic device. In particular, when the two swing arms are in a flattened state, the cooperation relationship between the two swing arms and the door panel contouring component 303 is basically the same as the cooperation relationship between the two swing arms 902 and the door panel when the two swing arms 902 are in the electronic device.

[0082] In this embodiment, the door panel contouring component 303 can also be detachably connected to the contouring base 302 or the first base 301. For example, the door panel contouring component 303 can be magnetically attracted to the contouring base 302 or the first base 301. For instance, a first magnet can be provided on the door panel contouring component 303, and a second magnet can be provided on the first base 301 or the contouring base 302. The first and second magnets can attract each other. The first and second magnets can be components such as iron, permanent magnets, or electromagnetic coils. The door panel contouring component 303 is magnetically attracted to the first base 301 or the contouring base 302, thus eliminating the need for complex mechanical mechanisms. The first component 300 has a simple structure and small size, providing space for other components of the clamping device 1000. Although this application does not show the specific locations and structures of the first and second magnets, it does not hinder those skilled in the art from understanding and implementing the solutions described in this embodiment.

[0083] The contouring base 302 can be detachably connected to the first base 301, for example, by bolts. Of course, the contouring base 302 can also be detachably connected to the first base 301 by magnetic force.

[0084] In this embodiment, both the contour base 302 and the door panel contour part 303 are detachably connected to the first base 301, which facilitates quick replacement of the contour base 302 and the door panel contour part 303 that are compatible with the swing arm module 900. In this way, the first base 301 can be used for positioning and clamping of swing arm modules 900 with different structures, thereby improving the flexibility of the clamping device 1000.

[0085] To facilitate the assembly of the contour base 302, the swing arm 902, the base 901, and the door panel contour component 33, at least two positioning shafts 305 can also be provided on the first base 301. Figure 6 The figure shows three positioning shafts 305. One end of the positioning shaft 305 is fixed to the first base. The contour base 302 and the door panel contour part 303 are provided with coaxial positioning through holes (not shown in the figure). The positioning shaft part is located in the positioning through hole.

[0086] In this embodiment, a connector 304 may be fixed to the side of the first base 301 away from the contour base 302. The connector 304 has a structure for connecting to the clamping mechanism 200, such as a threaded connection or a bolt connection between the connector 304 and the output end of the clamping mechanism 200. Providing a connecting plate on the first base 301 for connection to the clamping mechanism 200 can improve the strength of the first base 301 and facilitate the setting of the connection structure that cooperates with the clamping mechanism 200.

[0087] In this embodiment, a first mating surface 301A is provided on the first base 301, and the first mating surface 301A can be a plane. For example, the surface of the first base 301 on which the contour base 302 is mounted can be provided with a protrusion 3011, and the first mating surface 301A is provided on the end face of the protrusion 3011 away from the contour base 302. The protrusion 3011 can be provided circumferentially on the first base 301. Figure 6 and Figure 7 The diagram shows that the first base 301 has a cuboid structure, with protruding pillars 3011 disposed at the four corners of the first base 301. Of course, the structure of the first base 301 is not limited to a cuboid; it can also be circular or elliptical, etc. The protruding pillars 3011 are evenly distributed around the contour base 302. By placing the first mating surface 301A on the end face of the protruding pillar 3011, the contact area can be minimized while ensuring proper mating of the first base 301 and the second base 401, resulting in higher mating precision.

[0088] Please refer to Figure 5 and Figure 9Understood, in this embodiment of the application, the second component 400 in the clamping device 1000 includes a second base 401, a clamping component 404, and an adjusting mechanism 420 (see...). Figure 9 ) and other components. Among them, the second base 401 is located on the frame 100. The second base 401 can be fixed on the frame 100. Of course, the second base 401 can also be non-fixed to the frame 100, as long as the first base 301 and the second base 401 can be clamped and positioned on the frame 100 by the clamping mechanism 200.

[0089] In this embodiment, the clamping mechanism is connected to the frame 100. The clamping mechanism is used to maintain the first base 301 and the second base 401 in a clamped state and position them on the frame 100. That is, under the action of the clamping mechanism, the first base 301 and the second base 401 can be in a clamped state and are locked to the frame 100. When the first base 301 and the second base 401 are in the clamped state, the first mating surface 301A and the second mating surface 401A are fitted and positioned, and the pressing component abuts against the swing arm module 900 on the first base 301, so that the swing arm module 900 is in a flattened state. The clamping mechanism has various structures. In this embodiment, the clamping mechanism includes a drive unit and a transmission mechanism. The drive unit can be a manually driven component, such as a handle 201, and the operator drives the transmission mechanism through the handle. Figure 5 The drive unit shown is the handle 201.

[0090] Please refer to Figure 5 The transmission mechanism in this embodiment includes a linkage mechanism. For example, the linkage mechanism includes a first link 202, a second link 203, and a third link 204. A first support 102 is provided on the frame 100. One end of the first link 202 is hinged to the first support 102. The second link 203 is hinged to the first link 202. The third link 203 is horizontally arranged and movably supported on the second support 103. The handle 201 is also hinged to the first link 202. The handle 201 drives the first link 202 to rotate around the hinge point between the first link 202 and the first support 102, thereby driving the second link 203 to move, and then driving the third link 203 to reciprocate linearly relative to the third support 103, thereby realizing that the first base 301 moves closer to the second base 401 so that the two are in a clamping state, or realizing that the first base 301 moves away from the second base 401.

[0091] Of course, the drive unit can be an electric or hydraulic power component. The power output end of the power component is connected to the input end of the transmission mechanism 205, that is, the power component provides the power for the operation of the transmission mechanism. Please refer to [reference needed]. Figure 20 The transmission mechanism is directly controlled by the power components, which saves the labor intensity of the operators, and the movement stroke of the first base 301 can be precisely controlled. Figure 20 In addition to the drive components and Figure 5 Aside from the differences in the middle, other structures are similar to Figure 5 The embodiments shown can all be the same.

[0092] In one example, the clamping mechanism 200 further includes a stop 206 fixed on the frame 100. The stop 206 is located on the side of the second base 401 away from the first base 301. The stop 206 is used to restrict the movement of the second base 401 away from the first base 301. When the first base 301 and the second base 401 are in the clamping state, the first base 301 and the second base 401 are clamped between the stop 206 and the power output end of the transmission mechanism 205.

[0093] In this embodiment, only a transmission mechanism needs to be provided on one side of the first base 301. The clamping mechanism 200 has a simple structure and is easy to operate.

[0094] Please refer to Figure 9 In this embodiment, a second mating surface 401A is provided on the second substrate 401, and the first mating surface 301A matches the second mating surface 401A. When the first mating surface 301A is planar, the second mating surface 401A can also be planar. The second mating surface 401A is disposed on the end face 4011 of the second substrate 401 facing the first substrate 301. In one example, the second substrate 401 includes a first vertical wall 4013, and the second mating surface 401A is disposed on the end face 4011 of the first vertical wall 4013 facing the first substrate 301.

[0095] In this embodiment, the clamping mechanism 200 is mounted on the frame 100. The clamping mechanism 200 can apply force to the first base 301 and / or the second base 401, so that the first base 301 and the second base 401 are in a clamped state (mold-closed state). Please refer to... Figure 10 , Figure 11 and Figure 11-1 It is understood that the positioning of the first base 301 and the second base 401 in the clamping state is achieved through the abutting fit of the first mating surface 301A and the second mating surface 401A. In other words, the positioning of the first base 301 and the second base 401 in the clamping state is only related to the fitting accuracy of the first mating surface 301A and the second mating surface 401A. As long as the machining accuracy of the first mating surface 301A and the second mating surface 401A is precisely controlled, the consistency of the clamping force between the clamping component 404 and the swing arm module 900 can be improved, so that the swing arm module 900 is in a flattened state, thereby improving the accuracy of the subsequent measurement of the flattened angle of the swing arm module 900.

[0096] In this embodiment, the clamping mechanism can drive the first base 301 to move closer to or further away from the second base 401. When the first base 301 and the second base 401 are in a separated state, the operator can assemble the swing arm assembly, the door panel contouring part 303, the contouring seat 302, and the first base 301 into a whole, or detach the swing arm assembly, the door panel contouring part 303, and the contouring seat 302 from the first base 301. The clamping mechanism drives the first base 301 to reciprocate between a clamping state and a separated state in cooperation with the second base 401, making the assembly and disassembly of the mechanism relatively convenient to use.

[0097] Please combine Figure 7 and Figure 9 In this embodiment of the application, the first base 301 can be guided by a guide pin and a guide hole during movement. For example, each protrusion 3011 has a first guide hole 3A, and the second base 401 has a guide pin 4A. The guide pin 4A cooperates with the first guide hole 3A to guide the relative movement of the first base 301 and the second base 401. The first guide hole 3A is provided on the protrusion 3011 and does not occupy space in other positions of the first base 301. The first component 300 has a simple and compact overall structure.

[0098] Please refer to Figure 11 and Figure 11-1 ,in Figure 11-1 This is merely a structural schematic diagram, intended only for illustration. Figure 11 The relative positional relationship of the main components. In this embodiment, the number of clamping components 404 on the second base 401 is at least two, and the position of each clamping component 404 relative to the second base 401 is adjustable. That is, when the first base 301 and the second base 401 are in a clamping state, the abutment force between each clamping component and the swing arm module 900 can be adjusted by adjusting the position of the clamping component 404 relative to the second base 401. In this way, the abutment force between each clamping component and the swing arm module 900 is adjustable, and the abutment force between each clamping component 404 and the swing arm module 900 can be adjusted to be basically equal or the difference between each abutment force is within a predetermined requirement range. That is, the abutment force of each clamping component 404 on the swing arm module 900 is basically consistent, the clamping force on the swing arm module 900 is stable, and the fluctuation can be reduced to less than or equal to ten percent, which is beneficial to further improve the accuracy of subsequent measurements of the swing arm module 900. Experiments have shown that the dynamic repeatability can reach within a few tenths of a degree, and the supporting measurement system has the ability to perform precise range division.

[0099] Please refer to Figure 11 and Figure 12Understandably, the number of clamping components 404 is three: a first clamping component 4041 and two second clamping components 4042. The two second clamping components 4042 are located on both sides of the first clamping component 4041. The swing arm module 900 has a base and swing arms rotatably connected to both sides of the base. When the first base 301 and the second base 401 are in a clamping state (the first mating surface 301A and the second mating surface 401A are in contact), the first clamping component 4041 abuts against the door panel contouring component 303, and the two second clamping components 4042 abut against the relatively distant ends of the two swing arms, respectively. The abutment points of the two second clamping components 4042 with the two swing arms are approximately symmetrical about the base. The abutment force exerted by the three clamping components on the swing arm module 900 is described in [reference needed]. Figure 13 . Figure 13 F1 and F2 are the clamping forces exerted by the two second clamping components 4042 on the left and right swing arms 902, respectively, and F3 is the force exerted by the first clamping component 4041 on the door panel conforming component 303. F2 and F1 are equal, and the magnitudes of F3 and F1(F2) can be determined using the following formula:

[0100] F3≥k*2*F1'; where k is the safety factor in the formula, and k can be a number greater than or equal to 1, such as 1.2, 1.5, 1.7, 1.2, etc.

[0101] F1' = F1 * x2 / x1, where F1 is the component of the torque module applied to the swing arm shaft, x2 is the distance from the point where the second clamping component 4042 abuts against the swing arm to the point where the swing arm abuts against the base, and x1 is the distance from F1 to the point where the swing arm abuts against the base; please refer to... Figure 14 understand.

[0102] Therefore, F3 ≥ 1.5 * 2 * (F1 * x2 / x1).

[0103] The above embodiment uses three clamping components to stably position the swing arm in a flattened state, which is simple in structure and easy to implement.

[0104] The first clamping component 4041 and the two second clamping components 4042 can have the same structure, or they can have different structures. This application provides an example where the two second clamping components 4042 have the same structure, while the first clamping component 4041 and the second clamping component 4042 have different structures. This is mainly because the structures of the two second clamping components 4042 abutting against the swing arm are basically the same, so the two second clamping components 4042 can be designed to have the same structure, reducing design difficulty.

[0105] Please combine Figure 11 , Figure 12 , Figure 15 and Figure 16 understand, Figure 15 for Figure 9 The schematic diagram of the second component 400 shown has some of its structure hidden. Figure 16 for Figure 15 BB cross-sectional view of the structure shown.

[0106] In this embodiment, the first pressing component 4041 and the two second pressing components 4042 each include a mounting base, an elastic body, and abutment. The elastic body is pressed between the mounting base and the abutment, and the abutment is used to abut against the swing arm module 900. The mounting base is movably connected to the second base 401, and the adjusting mechanism 420 adjusts the movement of the mounting base relative to the second base 401. For clarity and brevity, in this embodiment, the mounting base, elastic body, and abutment in the first pressing component 4041 are defined as the first mounting base 40411, the first elastic body 40412, and the first abutment 40413, respectively; and the mounting base, elastic body, and abutment in the second pressing component 4042 are defined as the second mounting base 40421, the second elastic body 40422, and the second abutment 40423, respectively. The first mounting base 40411 can be slidably or rollably mounted on the second base 401. For example, the first mounting base 40411 and the second base 401 can slide together, with the first mounting base 40411 having a sliding groove and the second base 401 having a slide rail 404211 that mates with the sliding groove. Alternatively, the second base 401 can have a sliding groove, and the first mounting base 40411 can have a slide rail 404211 that inserts into the groove. The mounting structure of the second mounting base 40421 and the second base 401 can be the same as the mounting structure of the first mounting base 40411 and the second base 401. Please refer to [reference needed]. Figure 15 This application embodiment illustrates a structure in which the second mounting base 40421 and the second base 401 slide together. Exemplarily, a seat 40121 is fixed to the inner sidewall of the sidewall 4012 of the second base 401. A sliding groove 4012A is provided on the seat 40121, and a slide rail 404211 is provided on the first mounting base 40411, which is inserted into the sliding groove 4012A. The sliding structure of the first mounting base 40411 and the second base 401 is described above and will not be described in detail here. This method of cooperation between the sliding groove 4012A and the slide rail 404211 is simple and facilitates the movement of the pressing component along the extension and retraction direction of the elastic body, i.e., the pressing component presses the swing arm module 900 along a preset direction.

[0107] Please refer to Figure 17 The adjustment mechanism 420 includes a first adjustment component 421 and two second adjustment components 422. The first adjustment component 421 is used to adjust the position of the first mounting base 40411, and the two second adjustment components 422 adjust the positions of the two second mounting bases 40421 respectively. Each adjustment component is relatively independent and does not affect the others.

[0108] As can be seen from the above description, each clamping component in the embodiments of this application can be an elastic clamping component. Please refer to... Figure 16 and Figure 17 It is understood that the elastic pressing component extends and retracts along the arrangement direction of the first base 301 and the second base 401, and the pressing component elastically abuts against the swing arm module 900. By adjusting the extension and retraction of the elastic pressing component, the abutment force between the elastic pressing component and the swing arm module 900 can be adjusted, and the adjustment sensitivity is relatively high.

[0109] To further improve the installation stability of each clamping component and to clamp the swing arm module 900 along a preset direction, the elastic body of each clamping component can be further guided. The embodiments of this application also provide a structure for guiding the first elastic body 40412 and the two second elastic bodies 40422.

[0110] Please refer to this again. Figure 15 , Figure 16 and Figure 17 In this embodiment, the second component 400 further includes a block 406, which is fixed to the second base 401. The block 406 can be directly or indirectly fixed to the second base 401 by bolts. The block 406 is located between each mounting base and each abutment member, and three second guide holes 4061 are provided on the block 406. Figure 16 As shown, the first elastic body 40412 and the two second elastic bodies 40422 are at least partially located inside the three second guide holes 4061. In this embodiment, each second guide hole 4061 corresponds to one elastic body, with the elastic body portion located inside the second guide hole 4061. The second guide holes 4061 can guide the first elastic body 40412 or the second elastic body 40422, preventing them from tilting. Furthermore, the three second guide holes 4061 guiding the first elastic body 40412 and the two second elastic bodies 40422 are all integrated on the block 406, which simplifies the structure of the second component 400.

[0111] Of course, the arrangement of the second guide hole 4061 on the second base 401 is not limited to the above-mentioned method of integrating it on a block 406. It can also be in other ways. For example, the second guide holes 4061 guiding the first elastic body 40412 and the second elastic body 40422 can be arranged on different components. Each component is relatively independent, simple to process, and its position can be adjusted according to the elastic body that it is inserted and mated with. The installation flexibility is also relatively high.

[0112] In this embodiment, the second guide hole 4061 corresponds one-to-one with the pressing component. The second guide hole 4061 extends along the stretching direction of the elastic body, and the elastic body is at least partially located inside the second guide hole 4061. The second guide hole 4061 can guide the elastic body.

[0113] In this embodiment, the side of the door panel conforming member 303 away from the first base 301 is a planar structure (please refer to...). Figure 6 and Figure 7 The first abutment 40413 of the first clamping member 4041 can also be a plane (see reference). Figure 9 , Figure 12 and Figure 16 The first abutting part 40413 abuts against the door panel contouring part 303, so that the contact area between the two is relatively large, which is conducive to the stable abutting of the door panel contouring part 303 against the swing arm module 900.

[0114] To further ensure that the pressure of the first pressing component 4041 and the two second pressing components 4042 on the swing arm assembly is in a preset direction, the second assembly 400 may be further provided with components to guide the first abutment 40413 and the second abutment 40423.

[0115] from Figure 16 As can be seen from the above, the first abutment 40413 is a pressure plate structure, and the second abutment 40423 is roughly a columnar structure. Different guide components are set according to the different shapes of the two. A specific setting method is given below.

[0116] Please refer to Figure 16 The second component 400 also includes a linear bearing 408, which corresponds one-to-one with the second abutment 40423 of the second pressing component 4042. Each linear bearing 408 is fixed to the second base 401. The second abutment 40423 of the second pressing component 4042 is partially fitted into the inner hole of the linear bearing 408. The friction between the linear bearing 408 and the second abutment 40423 is small, and the straightness of the guide is relatively high.

[0117] Of course, the component guiding the second abutment 40423 is not limited to the linear bearing 408, but can also be a component with a guide hole.

[0118] Please refer to Figure 18 In one example, the second component 400 includes a guide frame 405, which is fixed to the second base 401. The guide frame 405 can be secured to the second base 401 by screws (guide protrusions 4051 hereinafter). In one example, one end of the screw has a locking block 4052, which engages with the side of the first upright wall 4013 away from the guide frame 405. The screw passes through the first upright wall 4013 to connect the guide frame. The locking block 4052 also limits the first abutment 40413, preventing it from dislodging from the second base 401. To improve installation stability, the guide frame 405 can be secured to the second base 401 by two screws (guide protrusions 4051 hereinafter).

[0119] Figure 19 As shown, the first abutment 40413 is provided with a third guide hole 404131, and the guide frame 405 is provided with a guide protrusion 4051, which is inserted into the third guide hole 404131. Alternatively, it is also possible for the guide frame 405 to have a third guide hole 404131 and the first abutment 40413 to have a guide protrusion 4051. That is, one of the first abutment 40413 and the guide frame 405 is provided with a third guide hole 404131, and the other with a guide protrusion 4051. In this embodiment, the guide frame 405 is also provided with a through hole to avoid the first elastic body 40412 of the first pressing member 4041, thus not affecting the installation of the first elastic body 40412.

[0120] In this embodiment, the second component 400 is further provided with a guide frame 405 to guide the first abutment 40413, so that the first abutment 40413 abuts against the swing arm module 900 in a preset direction, which is beneficial to the first abutment 40413 and the door panel contour part 303 face to face contact.

[0121] Please refer to this again. Figure 15 and Figure 17 In this embodiment, the clamping device 1000 further includes force sensors 430, each corresponding to a clamping component. The force sensors 430 detect the abutment force between the clamping component and the swing arm module 900. When the number of clamping components is three (as described above), the three clamping components are the first clamping component 4041, the second clamping component 4042, and the third clamping component. The number of force sensors 430 is also three, used to detect the abutment force between the first clamping component 4041 and the swing arm module 900, and the abutment force between the two second clamping components 4042 and their respective positions on the swing arm module 900. The force sensors 430 can be mounted on a mounting base for easy installation.

[0122] Force sensor 430 can monitor the interaction between the clamping components and the swing arm module 900 in real time. Operators can more intuitively understand the forces between each clamping component and the swing arm module 900, preventing unnoticed clamping force failure during use of the clamping device 1000. When the force between the clamping components and the swing arm module 900 does not meet requirements, adjustment mechanism 420 adjusts the position of each clamping component on the second base 401 based on the signal detected by force sensor 430. That is, adjustment mechanism 420 can adjust the force between the clamping components and the swing arm module 900, further improving the consistency of the forces between each clamping component and the swing arm module 900. It is expected that the dynamic repeatability of the swing arm module 900's unfolding angle will reach within 0.x°, improving measurement accuracy.

[0123] An adjusting component includes a threaded rod 4221, which is threadedly connected to a second base 401. The threaded rod 4221 is located on the side of the clamping component away from the first base 301, and abuts against the clamping component. Rotating the threaded rod 4221 allows it to reciprocate relative to the second base 401 along the direction of the abutment force between the clamping component and the swing arm module 900. The threaded rod 4221 can move towards the clamping component to increase the abutment force between the clamping component and the swing arm module 900, or it can move away from the clamping component to decrease the abutment force. This provides high adjustment flexibility, and with a small thread pitch, it allows for minute adjustments to the abutment force between the clamping component and the swing arm module 900. The adjusting component in this embodiment can be a micro-drive adjuster, offering high adjustment precision. The micro-drive adjuster is fixed on the second vertical wall 4014 of the second base 401. The threaded rod 4221 is threadedly engaged with the nut 4222. The threaded rod 4221 passes through the second vertical wall and abuts against the corresponding clamping component.

[0124] The threaded rod 4221 and the clamping component can make ball contact. For example, a ball 4223 is provided at the end of the threaded rod, and the ball 4223 abuts against the clamping component. The small spherical contact area between the two components is beneficial for the transmission of force along a preset direction. The measuring system in this embodiment has the above-mentioned clamping device 1000, so the measuring system also has the above-mentioned technical effects of the clamping device 1000.

[0125] from Figure 10 , Figure 11 , Figure 15 , Figure 16 In summary, the second base 401 in this embodiment is a box structure, including a first vertical wall 4013, a second vertical wall 4014, a top wall 4012, and a bottom wall 4015, wherein the force sensor 430 and most of the structures of each clamping component are located inside the box. Part of the structure in the adjustment mechanism 420 is located on the side of the second vertical wall 4014 away from the clamping component. This embodiment may further include an outer shell 402 (see reference...). Figure 5 The outer casing 402 protects the structure of the adjustment mechanism 420 located outside the housing. When it is necessary to adjust the force between the clamping component and the swing arm module 900, the outer casing 402 can be partially or completely disassembled. The operator can then operate the corresponding adjustment component in the adjustment mechanism 420, such as rotating the threaded rod 4221 in the corresponding adjustment component to adjust the abutment force between the clamping component and the swing arm module 900. After adjustment, the outer casing 402 can be reinstalled.

[0126] Please refer to this again. Figure 15In this embodiment, the adjusting component can be further provided with a locking component 4224. The locking component 4223 is used to lock or unlock the position of the threaded rod 4221. Thus, when the threaded rod 4221 is adjusted to the correct position, the locking mechanism can lock the position of the threaded rod 4221, preventing changes in the abutment force between the first pressing component 4041 or the second pressing component 4042 and the swing arm module 900, which is beneficial to the accuracy of subsequent measurement experiments. The locking component 4224 can be a screw or a bolt. Figure 15 Only one locking component 4224 is shown in the diagram. Those skilled in the art should understand that locking components 4224 can be provided on all three adjusting components.

[0127] The clamping device 1000 described in this application can be assembled in the following order:

[0128] S1. Place the base into the contour base 302;

[0129] S2. Place the two swing arms 902 into the contour base 302;

[0130] S3. Pass the door panel contour piece 303 through the three positioning shafts 305 to press down the swing arm 902 and the base 901, and position it on the first base by magnetic force or other means to form the first component 300.

[0131] S4. Install the first component 300 on the end of the clamping mechanism 200, drive the clamping mechanism 200 to move, and under the guidance of the guide pin and the first guide hole 3A, the first component 300 moves to the clamping state that cooperates with the second component 400, and at the same time clamps the swing arm module 900.

[0132] S5. The whole assembly formed by the first component 300, the second component 400 and the clamping mechanism 200 on the frame 100 is placed in a measurement system, such as a 2.5-dimensional measuring device, for measurement.

[0133] S6. Measurement complete. According to the threshold, place the swing arm and base into different material trays.

[0134] The 900-precision segmentation of the swing arm module facilitates subsequent compatibility and yield improvement, as well as increases the utilization rate of parts, thereby reducing the waste rate.

[0135] For other structures of the measurement system, please refer to the existing technology; these will not be elaborated upon here.

[0136] In the embodiments of this application, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first" and "second" may explicitly or implicitly include one or more of that feature.

[0137] The directional terms mentioned in the embodiments of this application, such as "inner" and "outer", are only for reference to the direction of the accompanying drawings. Therefore, the directional terms used are for better and clearer explanation and understanding of the embodiments of this application, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this application.

[0138] In the description of embodiments of this application, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus.

[0139] In the embodiments of this application, "and / or" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, or B existing alone. Additionally, the character " / " in this document generally indicates that the preceding and following related objects have an "or" relationship.

[0140] This document uses specific examples to illustrate the principles and implementation methods of this application. The descriptions of the embodiments above are only for the purpose of helping to understand the method and core ideas of this application. It should be noted that those skilled in the art can make several improvements and modifications to this application without departing from the principles of this application, and these improvements and modifications also fall within the protection scope of the claims of this application.

Claims

1. A clamping device, characterized in that, Includes a rack, on which are provided: A first base and a second base, at least one of which is movably connected to the frame. The first base is provided with a contouring seat and a door panel contouring component, which are adapted to the swing arm module to position the swing arm module on the first base. The first base is provided with a first mating surface. The second base is equipped with a clamping component and has a second mating surface. A clamping mechanism is connected to the frame. The clamping mechanism is used to maintain the first base and the second base in a clamping state and position them with the frame. When the first base and the second base are in the clamping state, the first mating surface and the second mating surface are in contact. The pressing component abuts against the swing arm module on the first base so that the swing arm module is in a flattened state.

2. The clamping device as described in claim 1, characterized in that, The first base has at least two protrusions on the surface where the contour seat is mounted. The protrusions protrude toward the side of the second base, and the first mating surface is located on the end face of the protrusion away from the contour seat.

3. The clamping device as described in claim 2, characterized in that, Each of the protruding posts also has a first guide hole, and the second base also has a guide pin. The guide pins cooperate with the first guide holes to guide the relative movement of the first base and the second base.

4. The clamping device as described in claim 2 or 3, characterized in that, All the protruding pillars are evenly distributed around the circumference of the contour seat.

5. The clamping device according to any one of claims 1 to 4, characterized in that, The number of clamping components is at least two, and the position of each clamping component relative to the second base is adjustable; The clamping device further includes: An adjustment mechanism is used to adjust the position of each of the clamping components on the second base, so as to adjust the abutment force between each of the clamping components and the swing arm module.

6. The clamping device as described in claim 5, characterized in that, Each of the clamping components is an elastic clamping component, which extends and retracts along the arrangement direction of the first base and the second base, and the clamping component elastically abuts against the swing arm module.

7. The clamping device as described in claim 6, characterized in that, Each of the clamping components includes a mounting base, an elastic body, and a stop member. The elastic body is pressed between the mounting base and the stop member. The stop member is used to abut against the swing arm module. The mounting base is movably connected to the second base. The adjustment mechanism adjusts the movement of the mounting base relative to the second base.

8. The clamping device as described in claim 7, characterized in that, The second substrate is also provided with a second guide hole, which corresponds one-to-one with the pressing component. The second guide hole extends along the stretching direction of the elastic body, and the elastic body is at least partially located inside the second guide hole.

9. The clamping device as described in claim 8, characterized in that, It also includes a block, which is fixed to the second base and is located between the mounting base and the abutment, with all the second guide holes integrated on the first block.

10. The clamping device according to any one of claims 7 to 9, characterized in that, The mounting base is slidably engaged with the second base. One of the mounting base and the second base is provided with a sliding groove, and the other is provided with a sliding rail that engages with the sliding groove.

11. The clamping device according to any one of claims 7 to 10, characterized in that, The number of clamping components is three, namely a first clamping component and two second clamping components. The two second clamping components are located on both sides of the first clamping component. The swing arm module has a base and swing arms rotatably connected to both sides of the base. When the first base and the second base are in a clamping state, the first clamping component abuts against the door panel contouring component, and the two second clamping components abut against the relatively far ends of the two swing arms respectively.

12. The clamping device as claimed in claim 11, characterized in that, The side of the door panel conforming part away from the first base is a planar structure, and the abutting part of the first pressing component abuts against the planar structure.

13. The clamping device as claimed in claim 12, characterized in that, It also includes a guide frame, fixed to the second base. One of the abutment and the guide frame is provided with a third guide hole, and the other is provided with a guide protrusion. The guide protrusion is inserted into the third guide hole. The guide frame is also provided with a through hole to avoid the elastic body of the first pressing component.

14. The clamping device according to any one of claims 11 to 13, characterized in that, It also includes linear bearings, which correspond one-to-one with the second pressing component. Each linear bearing is fixed to the second base, and the abutment part of the second pressing component is fitted into the inner hole of the linear bearing.

15. The clamping device according to any one of claims 1 to 12, characterized in that, It also includes at least two positioning shafts, one end of which is fixed to the first base. The contouring seat and the door panel contouring part are provided with coaxial positioning through holes, and the positioning shaft part is located in the positioning through hole.

16. The clamping device according to any one of claims 1 to 16, characterized in that, The contouring seat can be detachably installed on the first base; Alternatively / and, the door panel contouring component can be detachably installed on the contouring base; Alternatively / and, the door panel contouring component is connected and fixed to the contouring base by magnetic force.

17. The clamping device according to any one of claims 5 to 14, characterized in that, It also includes force sensors, which correspond one-to-one with the clamping components. The force sensors are used to detect the abutting force between the clamping components and the swing arm module. The adjustment mechanism adjusts the position of the corresponding clamping component on the second base according to the signal detected by the corresponding force sensor.

18. The clamping device as claimed in claim 17, characterized in that, The adjusting mechanism includes a threaded rod, which corresponds to the pressing component. The threaded rod is threadedly connected to the second base. The threaded rod is located on the side of the pressing component away from the first base, and the threaded rod abuts against the pressing component.

19. The clamping device according to any one of claims 1 to 18, characterized in that, The first base is movably supported on the frame, and the second base is limited to the frame in the direction of movement of the first base. The clamping mechanism includes a driving part and a transmission mechanism. The driving part is connected to the input end of the transmission mechanism, and the output end of the transmission mechanism is connected to the first base. The driving part drives the first base to move relative to the frame through the transmission mechanism to move closer to or further away from the second base.

20. The clamping device as claimed in claim 19, characterized in that, The drive unit includes a handle, which can be locked in a first position to keep the first base and the second base in the clamping state; Alternatively, the drive unit may include a power component, the power output end of which is connected to the input end of the transmission mechanism.

21. The clamping device as described in claim 19 or 20, characterized in that, The clamping mechanism includes a stop fixed on the frame. The stop is located on the side of the second base away from the first base. The baffle is used to restrict the movement of the second base away from the first base. When the first base and the second base are in the clamping state, the first base and the second base are clamped between the stop and the power output end of the transmission mechanism.

22. A measurement system, characterized in that, The invention includes an image vision system and a clamping device according to any one of claims 1 to 21, wherein the image vision system is used to acquire an image of the swing arm module in the clamping device.

Images