Automatic attaching equipment for flexible sensor of touch pen

Abstract

The invention discloses an automatic attaching device for a flexible sensor of a stylus, which comprises a workbench, and also comprises a centering clamping mechanism, the centering clamping mechanism comprises two groups of end part clamping assemblies which are oppositely arranged, and each end part clamping assembly comprises an end part driving piece and an end part clamping execution piece driven by the end part driving piece; the turnover mechanism is in transmission connection with the two groups of end part clamping execution pieces and drives the two groups of end part clamping execution pieces to synchronously rotate around the axis of the touch pen; and the attaching mechanism comprises an adsorption plate for supporting the flexible sensor and a rolling driving piece for driving the adsorption plate to turn over between the bearing position and the attaching position. According to the invention, through the cooperative action of the centering clamping mechanism and the attaching mechanism, in the continuous rotation process of the touch pen, the whole process of the flexible inductor from positioning and pre-attaching to final tight attaching to the peripheral side of the touch pen is automatically completed, so that high-quality, high-efficiency and high-reliability attaching is realized.

Description

Technical Field

[0001] This invention relates to the field of precision automated assembly equipment technology, and in particular to an automatic attachment device for flexible sensors of styluses. Background Technology

[0002] In the consumer electronics sector, portable tablets and their accompanying styluses have been widely adopted in professional fields such as drawing and illustration design. To achieve intelligent wake-up and sleep modes to optimize battery life, these styluses typically integrate a ring of flexible touch sensors on the pen barrel to detect the grip status. Therefore, assembling the flexible sensors onto the pen barrel is a key step in the manufacturing process.

[0003] Traditional flexible sensor attachment is primarily done manually. Operators must manually align the electrically connected flexible sensor with the pen barrel surface and attach it. This traditional manual attachment method has several drawbacks: First, the attachment efficiency is extremely low, as the entire process depends heavily on the operator's skill and concentration, thus hindering production pace. Second, the yield rate of manual attachment is difficult to guarantee and is highly unstable. Because the electrical connections of the flexible sensor are very narrow and thin, uneven force, misalignment, or improper operation during manual wrapping can easily lead to suspension, bending, or even breakage, directly causing functional damage to the product. Furthermore, purely manual operation makes it difficult to achieve uniform and linear rolling air removal, resulting in air bubbles easily remaining at the attachment interface between the flexible sensor and the pen barrel surface, causing defects such as wrinkles or loose adhesion, failing to meet the requirements of high-quality, high-efficiency, and high-reliability production. Summary of the Invention

[0004] To address the aforementioned technical problems, this invention provides an automatic attachment device for a flexible sensor of a stylus.

[0005] The technical solution of the present invention is: it includes a worktable, and further includes:

[0006] The centering clamping mechanism includes two sets of oppositely arranged end clamping assemblies, each end clamping assembly including an end drive and an end clamping actuator driven by the end drive;

[0007] The flipping mechanism is connected to the two sets of end clamping actuators and drives the two sets of end clamping actuators to rotate synchronously around the axis of the stylus.

[0008] The attachment mechanism includes an adsorption plate for supporting a flexible sensor and a rolling drive for rotating the adsorption plate between a receiving position and an attachment position.

[0009] The flexible sensor is automatically attached during the rotation of the stylus by the coordinated action of the centering clamping mechanism and the attachment mechanism.

[0010] A further technical solution includes a rolling support mechanism, which is configured corresponding to the attachment section of the stylus, and includes:

[0011] Support drive components;

[0012] A roller mounting base disposed at the output end of the support drive component; and...

[0013] Multiple sets of support rollers are mounted on the roller mounting base parallel to the axis of the stylus;

[0014] Multiple sets of the support rollers are arranged circumferentially to collectively form a rolling channel for radially enclosing and supporting the stylus attachment section.

[0015] A further technical solution is as follows: the adsorption plate is connected to the rolling drive through a flipping arm. The flipping arm is set parallel to the axis of the stylus, and its two ends are respectively connected to the worktable through bearing seats to form a rotating support. Under the drive of the rolling drive, the adsorption plate rotates around the axis of the stylus.

[0016] A further technical solution is that an attachment roller is provided on the side of the adsorption plate near the center of the flip, and the top tangent of the attachment roller is coplanar with the supporting surface of the adsorption plate.

[0017] A further technical solution is as follows: the adsorption plate is fixed to the flipping arm by an attachment mounting base, and the attachment roller is mounted on the attachment mounting base by an L-shaped arm;

[0018] The short arm end of the L-shaped arm is rotatably connected to the attachment roller via a bearing, and its long arm end is hinged to the attachment mounting base via a rotating shaft.

[0019] A pressure sensor is provided on the radially outer side of the mounting base, directly opposite the short arm end. The pressure sensor remains in contact with the short arm end when the mounting roller is not under pressure.

[0020] A further technical solution is that the flipping mechanism includes:

[0021] Tilting drive device;

[0022] Two sets of rotating seats are fixed relative to each other on the worktable;

[0023] The two rotating shafts supported on the corresponding rotating bases are rotated respectively; and,

[0024] A transmission assembly used to synchronously transmit the power of the flipping drive device to the two flipping shafts;

[0025] Under the action of the transmission component, the two rotating shafts can rotate synchronously around their own axes.

[0026] A further technical solution is that each end clamping assembly also includes a flip half shaft that is connected to the flip shaft on the corresponding side in a transmission manner, and the flip half shaft is provided with a receiving groove for supporting the stylus along the axial direction.

[0027] The end clamping actuator includes: an axial slip ring and two symmetrically hinged jaws at the end of the flipping half shaft. The axial slip ring is sleeved on the outer periphery of the flipping half shaft and can reciprocate along its axial direction. During the axial reciprocating motion, its inner circumferential surface squeezes the jaws to make them close, or releases the squeeze on the jaws to make them open.

[0028] A further technical solution is that: the outer periphery of the axial slip ring is provided with a radial flange; the output end of the end drive is provided with a push ring, and the push ring and the end face of the radial flange near the stylus form a push mating surface;

[0029] It also includes a return spring coaxially arranged with the flip half shaft, the two ends of the return spring respectively abutting against the end face of the radial flange facing away from the stylus and the flip base.

[0030] A further technical solution is that a central clamping mechanism is provided between the two sets of end clamping assemblies, the central clamping mechanism comprising:

[0031] Mid-drive component;

[0032] Two lever clamping arms, the bottom ends of which are hinged to one of the sets of the tilting half shafts;

[0033] The drive slider is sleeved on the outer circumference of the flip half shaft and slides along the axial direction of the flip half shaft under the drive of the central drive assembly.

[0034] A further technical solution is that the workbench is also equipped with a barcode scanning mechanism, which reads the information mark on the stylus after the material is loaded, so as to realize the binding of product and production data.

[0035] The beneficial technical effects of this invention are as follows: Through the coordinated action of the centering clamping mechanism and the attaching mechanism, the entire process of the flexible sensor from positioning and pre-attaching to finally tightly attaching to the outer periphery of the stylus is automatically completed during the continuous rotation of the stylus. This ensures a tight fit between the flexible sensor and the stylus, avoiding wrinkles or air bubbles, and significantly improving the automation level, production efficiency, and product yield of the attaching operation. The multiple sets of support rollers of the rolling support mechanism form a rolling channel that can radially enclose the attaching section of the stylus, providing a stable radial support force for the stylus and ensuring the high stability of the rotation axis. At the same time, the support rollers form rolling friction contact with the outer periphery of the stylus, greatly reducing rotational resistance and the risk of wear on the surface of the flexible sensor. Moreover, the radial pressure applied by the rolling support mechanism and the attaching mechanism forms a counter-pressure relationship, so that the flexible sensor is subjected to uniform and constant linear rolling pressure during the attaching process, avoiding problems such as pressure damage, air bubbles, and wrinkles caused by uneven attaching pressure, thus meeting the requirements of high-efficiency and high-quality automated production. Attached Figure Description

[0036] Figure 1 This is a schematic diagram of the overall layout of the automatic attachment device for the flexible sensor of the stylus pen according to the present invention;

[0037] Figure 2 This is a schematic diagram of the specific structure of the flipping mechanism of the present invention;

[0038] Figure 3 This is a schematic diagram showing the overall installation position relationship of the flipping mechanism, the middle clamping mechanism, the central clamping mechanism, the rolling support mechanism, and the attaching mechanism according to the present invention;

[0039] Figure 4 This is the present invention. Figure 3 Enlarged schematic diagram of part C in the middle;

[0040] Figure 5 This is the present invention. Figure 3 A partial sectional view of the AA section line;

[0041] Figure 6 This is a schematic diagram of the specific mechanisms of the clamping mechanism and the rolling support mechanism in the middle of the present invention;

[0042] Figure 7 This is a schematic diagram of the specific structure of the attachment mechanism of the present invention;

[0043] Figure 8 This is the present invention. Figure 7 A partial sectional view of the BB section line;

[0044] Figure 9 This is a schematic diagram of the installation position of the pressure sensor of the present invention;

[0045] Wherein: 100, worktable; 200, tilting mechanism; 210, tilting drive device; 220, tilting seat; 230, tilting shaft; 240, first synchronous transmission mechanism; 250, drive shaft; 260, second synchronous transmission mechanism; 300, centering clamping mechanism; 310, tilting half shaft; 320, end drive component; 330, push ring; 340, end clamping actuator; 341, axial slip ring; 342, gripper; 343, clamping spring; 344, radial flange; 350, return spring; 400, middle part Clamping mechanism; 410, central drive assembly; 420, drive slider; 430, lever clamping arm; 440, drive arm; 500, rolling support mechanism; 510, support drive component; 520, roller mounting base; 530, support roller; 600, attachment mechanism; 610, adsorption plate; 611, limiting stop; 620, rolling drive component; 630, flipping arm; 640, attachment roller; 650, attachment mounting base; 660, L-shaped arm; 670, pressure sensor; 700, barcode scanning mechanism; 800, through-beam grating. Detailed Implementation

[0046] In order to better understand the technical means of the present invention and to implement it in accordance with the contents of the specification, the specific embodiments of the present invention will be further described in detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0047] like Figures 1 to 3 As shown, the automatic attachment device for a flexible stylus sensor according to the present invention includes a frame, a flipping mechanism 200, a centering and clamping mechanism 300, a flexible sensor attachment mechanism 600, and a rolling support mechanism 500 that cooperates with the attachment mechanism 600 to perform rolling attachment of the flexible sensor. The flipping mechanism 200 is disposed on the worktable 100 of the frame and is used to drive the stylus to rotate around its own axis. The centering and clamping mechanism 300 cooperates with the flipping mechanism 200 to achieve axial centering and stable clamping of the stylus during the flipping process. The attachment mechanism 600 simultaneously completes the wrapping and attachment operation of the flexible sensor while the flipping mechanism 200 drives the stylus to rotate, achieving automated and efficient attachment.

[0048] The flipping mechanism 200 includes a flipping drive device 210, two sets of flipping seats 220 fixed relative to each other on the worktable 100, flipping shafts 230 rotatably supported on the corresponding flipping seats 220, and a transmission assembly for synchronously transmitting the power of the flipping drive device 210 to the two sets of flipping shafts 230. Under the drive of the flipping drive device 210, the two sets of flipping shafts 230 can rotate synchronously around their respective axes, thereby driving the stylus mounted on the centering clamping mechanism 300 to achieve overall flipping.

[0049] The flipping drive device 210 preferably uses a servo motor. The transmission assembly includes a first synchronous transmission mechanism 240 that is connected to the output shaft of the servo motor, a drive shaft 250 that is parallel to the two sets of flipping shafts 230, and a second synchronous transmission mechanism 260 that is located at both ends of the drive shaft 250 and connected to the two sets of flipping shafts 230 respectively.

[0050] The first synchronous transmission mechanism 240 includes a first driving pulley fixed on the output shaft of the servo motor, a first driven pulley fixed on the drive shaft 250, and a first synchronous belt meshing with the first driving pulley and the first driven pulley.

[0051] Each of the second synchronous transmission mechanisms 260 includes a second driving pulley fixed to the corresponding end of the drive shaft 250, a second driven pulley fixed to the end of the corresponding flip shaft 230, and a second synchronous belt meshing around the second driving pulley and the second driven pulley. The rotational motion of the servo motor is transmitted to the drive shaft 250 via the first synchronous transmission mechanism 240, and then the drive shaft 250 synchronously drives the two sets of flip shafts 230 to rotate in the same direction and at the same speed through the second synchronous transmission mechanisms 260 at both ends, thereby realizing the synchronous and smooth flipping of both ends of the stylus.

[0052] like Figure 4 The centering clamping mechanism 300 includes end clamping assemblies arranged opposite each other at both ends. Each end clamping assembly includes a half-shaft support unit and a lever-type end clamping unit. The half-shaft support unit includes a flip half-shaft 310 that is hygienically connected to the corresponding side flipping shaft 230. The radial cross-section of the flip half-shaft 310 is semi-circular, and a receiving groove for supporting the stylus is formed along its axial direction on the flat part of the flip half-shaft 310. The semi-cylindrical design of the flip half-shaft 310 provides an open and convenient operating space for picking up and putting away the stylus.

[0053] like Figure 5 The lever-type end clamping unit includes an end drive 320 and an end clamping actuator 340. The end clamping actuator 340 includes an axial slip ring 341 and two grippers 342 symmetrically hinged to the ends of the rotating half-shaft 310. The axial slip ring 341 is sleeved on the outer circumference of the rotating half-shaft and reciprocates axially under the drive of the end drive 320. The drive ends of the two grippers 342 are connected by a clamping spring 343. During the movement, the inner circumferential surface of the axial slip ring 341 presses the outer sides of the two grippers 342, causing the drive ends of the grippers 342 to retract and clamp the end of the stylus.

[0054] The outer periphery of the axial slip ring 341 is provided with a radial flange 344; the output end of the end drive member 320 is provided with a push ring 330, and the push ring 330 and the end face of the radial flange 344 near the stylus form a push mating surface. A set of return springs 350 coaxially arranged with the flip half shaft 310 has its two ends abutting against the end face of the radial flange 344 on the side away from the stylus and the flip base 220, respectively.

[0055] When it is necessary to clamp the stylus, the end drive 320 drives the push ring 330 to move axially toward the stylus and releases the axial constraint on the radial flange 344. At this time, the elastic force of the return spring 350 is released and pushes the axial slip ring 341 to move toward the stylus. During the movement, the inner circumferential surface of the axial slip ring 341 squeezes the outer side of the two grippers 342, forcing the grippers 342 to rotate synchronously inward around their hinge point and overcome the tension of the clamping spring 343 to make its drive end retract, thereby completing the clamping of the stylus end.

[0056] When the stylus needs to be released, the end drive 320 drives the push ring 330 to move the axial slip ring 341 away from the stylus. The push ring 330 and the radial flange 344 overcome the spring force of the return spring 350 through the pushing mating surface, and the axial slip ring 341 returns to its original position. During this process, the radial compression of the axial slip ring 341 on the two grippers 342 is released, and the driving ends of the two grippers 342 automatically open under the return pull of the clamping spring 343, releasing the stylus. At the same time, the return spring 350 is recompressed and stored energy, preparing for the next clamping action.

[0057] To achieve clamping of the stylus in the middle, a middle clamping mechanism 400 is also provided between the two sets of end clamping components. The middle clamping mechanism 400 includes a middle drive assembly 410, a drive slider 420, and two lever clamping arms 430. Figure 6 .

[0058] The central drive assembly 410 includes an axial drive member and a vertical drive member. The axial drive member is driven in the axial direction. The vertical drive member is installed at the output end of the axial drive member and moves in the axial direction under the drive of the axial drive member. Its driving stroke is in the vertical direction, and the output end is provided with a drive arm 440.

[0059] One set of tilting half-shafts 310 extends axially, and the bottom ends of two lever clamping arms are hinged to the bottom of the tilting half-shafts 310 by pins. The tilting half-shafts 310 are provided with radially inwardly recessed arc-shaped grooves to accommodate the two lever clamping arms 430.

[0060] The drive slider 420 is sleeved on the outer periphery of the flip half-shaft 310. The bottom of the drive slider 420 has a drive opening that mates with the drive arm 440, allowing the vertical drive component to drive the slider 420 through this opening. A wedge-shaped drive portion is formed between the end of the drive slider 420 facing the lever clamping arm 430 and the flip half-shaft 310. When the drive slider 420 is driven to slide towards the lever clamping arm 430, the wedge-shaped drive portion radially presses against the lever clamping arm 430, causing the two lever clamping arms 430 to rotate and retract around the pin. This achieves stable clamping of the stylus's center. When the drive slider 420 slides back in the opposite direction, the radial pressure of the lever clamping arm 430 is released. At this time, the free end of the lever clamping arm 430 swings outward to reset and releases the stylus.

[0061] The rolling support mechanism 500 is positioned corresponding to the attachment section of the stylus and provides stable radial support for the rotating stylus. The rolling support mechanism 500 includes a support drive 510, a roller mounting base 520, and multiple sets of support rollers 530. The roller mounting base 520 is located at the output end of the support drive 510 and moves closer to or further away from the stylus axis under the drive of the support drive 510. Multiple sets of support rollers 530 are mounted parallel to the stylus axis on the roller mounting base 520 and arranged circumferentially to form a rolling channel that radially encloses and supports the attachment section of the stylus. When the attachment section of the stylus is accommodated in the rolling channel, its outer circumferential surface simultaneously forms rolling contact with the multiple support rollers 530. The multiple support rollers 530 forming multi-point contact provide uniform radial support force for the stylus, effectively suppressing radial runout and vibration during stylus rotation; simultaneously, the rolling friction greatly reduces rotational resistance and also reduces the risk of wear on the flexible sensor surface.

[0062] like Figures 7 to 9 The attachment mechanism 600 is used to receive and attach the flexible sensor, including an adsorption plate 610 corresponding to the attachment section of the stylus, and a rolling drive 620 that drives the adsorption plate 610 to rotate around the axis of the stylus. The adsorption plate 610 is positioned at the receiving point (e.g., ...). Figure 3 ) and attachment points (such as Figure 6 The flipping between the two provides the necessary clearance for picking up and putting away the stylus.

[0063] Specifically, the adsorption plate 610 is connected to the flipping drive via the flipping arm 630. The flipping arm 630 is set parallel to the axis of the stylus, and its two ends are respectively connected to the worktable 100 through bearing seats to form a rotation support. Under the drive of the flipping drive, the adsorption plate 610 rotates around the axis of the stylus. This structure ensures the smooth flipping process of the adsorption plate 610.

[0064] The adsorption plate 610 has vacuum adsorption holes on its supporting surface. These holes are connected to an external vacuum device via a vacuum connector to generate negative pressure, thus achieving a firm adsorption of the flexible sensor. To accommodate flexible sensors of different specifications, the adsorption plate 610 has axial limiting edges 611 on both sides, and radial limiting blocks on its surface. The radial limiting blocks have oblong holes; by adjusting the position of the fasteners within these holes, reliable positioning of flexible sensors of different widths can be achieved.

[0065] The adsorption plate 610 is fixed to the flipping arm 630 by the attachment mounting base 650. An attachment roller 640 is provided on the side of the adsorption plate 610 near the flipping center. The attachment roller 640 is rotatably connected to the attachment mounting base 650 by a bearing. The top tangent of the attachment roller 640 is coplanar with the supporting surface of the adsorption plate 610.

[0066] When the suction plate 610 is in the receiving position, the flexible sensor, which has already completed its electrical connection with the stylus, can lie flat on the supporting surfaces of the attachment roller 640 and the suction plate 610, preventing damage to the electrical connection part of the flexible sensor due to suspension or bending. When the suction plate 610 is flipped to the attachment position, the suction plate 610 is located on the tangential surface of the stylus, and the attachment roller 640 is in tangential contact with the stylus. Under vacuum suction, the lower end of the flexible sensor is pre-attached and positioned onto the stylus. Subsequently, the stylus continues to rotate around its own axis under the drive of the flipping mechanism 200, and the attachment roller 640 continues to roll and press against the flexible sensor that has already contacted the surface of the stylus, until the flexible sensor is completely wrapped and attached to the attachment section of the pen body. During this process, the attachment roller 640 applies a continuous radial pressure to the flexible sensor and stylus, effectively eliminating air bubbles between the attachment interfaces and ensuring a tight fit between the flexible sensor and the outer periphery of the stylus. This ultimately achieves a reliable dynamic rolling and pressure-holding function, fully guaranteeing the flatness of the attachment.

[0067] In this embodiment, the adsorption plate 610 is fixed to the flipping arm 630 via the attachment mounting base 650. The attachment roller 640 is mounted on the attachment mounting base 650 via an L-shaped arm 660. The short arm end of the L-shaped arm 660 is rotatably connected to the attachment roller 640 via a bearing; its long arm end is hinged to the attachment mounting base 650 via a rotating shaft, so that the linkage mechanism drives the attachment roller 640 to swing slightly around the hinge point.

[0068] A pressure sensor 670 is provided on the radially outer side of the mounting base 650, directly opposite the short arm end. The pressure sensor 670 remains in contact with the short arm end when the mounting roller 640 is not under pressure. When the mounting roller 640 contacts the stylus and applies radial rolling pressure, the reaction force of the stylus acts directly on the pressure sensor 670 through the short arm end. The pressure sensor 670 collects this positive pressure signal in real time and feeds it back to the control system. Based on this, the control system dynamically adjusts the rolling drive 620 to achieve precise control of the radial rolling pressure of the mounting roller 640.

[0069] The workbench 100 is also equipped with a barcode scanning mechanism 700. When the stylus is placed in place, the barcode scanning mechanism 700 reads the information mark on the stylus and uploads it to the control system to realize the binding of production data and process traceability.

[0070] The workbench 100 is equipped with a photoluminescence grating 800 at the stylus inlet. When manual feeding triggers the photoluminescence grating 800, the flipping mechanism 200 and the attaching mechanism 600 enter a pause standby state. They can only continue to operate after feeding is completed, so as to ensure the safety of the operator.

[0071] The entire process of attaching a stylus to a flexible sensor includes the following steps:

[0072] S1: Stylus loading: The stylus is placed in the receiving groove of the flip half shaft 310 of the centering clamping mechanism 300, and the flexible sensor that has completed the electrical connection with the stylus is laid flat on the supporting surface of the attachment roller 640 and the adsorption plate 610 in the receiving position; and vacuum adsorption is started to fix it; then, the barcode scanning mechanism 700 reads the information mark on the stylus to complete the binding of the identity information with the production system.

[0073] S2: Stylus clamping: The end drive members 320 at both ends actuate, releasing the constraint on the corresponding side axial slip rings 341. The return spring 350 pushes the axial slip rings 341 to move, driving the clamping claws 342 at both ends to close synchronously, achieving stable clamping of both ends of the stylus. At the same time, the middle clamping mechanism 400 drives the lever clamping arm 430 to close through the drive slider 420 and the wedge-shaped drive part, clamping the middle of the stylus; the support drive member 510 of the rolling support mechanism 500 pushes the roller mounting base 520 to move towards the rotation center of the stylus, so that multiple sets of circumferentially arranged support rollers 530 surround and form a rolling channel, providing uniform radial support for the attachment section of the stylus.

[0074] S3: Stylus pre-press: Under the drive of the rolling drive 620, the adsorption plate 610 flips from the receiving position to the attaching position, so that the attaching roller 640 on the adsorption plate 610 makes tangential contact with the outer peripheral surface of the stylus, and the lower end of the flexible sensor is pre-attached and positioned on the stylus.

[0075] S4: Stylus rotation and roll-fitting: The flip drive 210 is activated, and the two flip shafts 230 rotate synchronously through the transmission component, causing the stylus to rotate smoothly around its own axis. The flexible sensor is then smoothly wrapped and attached to the circumference of the stylus. During this process, under the real-time monitoring of the pressure sensor 670, the attachment roller 640 dynamically adjusts the roll-fitting drive 620 through the control system to apply constant radial pressure to the flexible sensor and the stylus, achieving dynamic roll-fitting and pressure maintenance to ensure a tight fit between the flexible sensor and the stylus.

[0076] S5: Stylus loading: After the flexible sensor is attached, the suction plate 610 flips and resets to the receiving position. The support drive 510 drives multiple sets of support rollers 530 to retract. At the same time, the centering clamping mechanism 300 and the central clamping mechanism 400 release the stylus. Finally, the attached stylus is removed, completing the entire automated attachment process.

[0077] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. A stylus flexible sensor automatic attaching device, comprising a workbench (100), characterized in that: Also comprising: a centering clamping mechanism (300) comprising two sets of oppositely arranged end clamping assemblies, each end clamping assembly comprising an end driving member (320) and an end clamping executor (340) driven by the end driving member (320); a turnover mechanism (200) in transmission connection with the two sets of end clamping executors (340) and driving the two sets of end clamping executors (340) to rotate synchronously around the axis of the stylus; an attaching mechanism (600) comprising an adsorption plate (610) for supporting the flexible sensor and a rolling driving member (620) for driving the adsorption plate (610) to turn between the receiving position and the attaching position; Through the cooperative action of the centering clamping mechanism (300) and the attaching mechanism (600), the automatic attachment of the flexible sensor during the rotation of the stylus is realized.

2. The stylus flexible sensor automatic attaching apparatus according to claim 1, wherein: Also comprising a rolling support mechanism (500) arranged corresponding to the attached segment of the stylus, comprising: a support driving member (510); a rolling cylinder mounting seat (520) arranged at the output end of the support driving member (510); and a plurality of support rolling cylinders (530) arranged on the rolling cylinder mounting seat (520) in parallel to the axis of the stylus; The plurality of support rolling cylinders (530) are arranged circumferentially to jointly form a rolling channel for radially surrounding and supporting the attached segment of the stylus.

3. The stylus flexible sensor automatic attaching apparatus of claim 1, wherein: The adsorption plate (610) is in transmission connection with the rolling driving member (620) through a turnover arm (630), the turnover arm (630) is arranged in parallel to the axis of the stylus, both ends thereof are rotationally supported by bearing seats and the workbench (100), and the adsorption plate (610) is driven by the rolling driving member (620) to rotate around the axis of the stylus.

4. The stylus flexible sensor automatic attaching apparatus according to claim 3, wherein: The side of the adsorption plate (610) close to the turnover center is provided with an attaching rolling cylinder (640), the top tangent of the attaching rolling cylinder (640) is arranged in the same plane as the supporting surface of the adsorption plate (610).

5. The stylus flexible sensor automatic attaching apparatus according to claim 4, wherein: The adsorption plate (610) is fixed on the turnover arm (630) through an attaching mounting seat (650), and the attaching rolling cylinder (640) is mounted on the attaching mounting seat (650) through an L-shaped arm (660); The short arm end of the L-shaped arm (660) is rotationally connected with the attaching rolling cylinder (640) through a bearing, and the long arm end thereof is hingedly connected with the attaching mounting seat (650) through a rotating shaft; The radial outer side of the attaching mounting seat (650) opposite to the short arm end is provided with a pressure sensor (670), the pressure sensor (670) is in contact with the short arm end when the attaching rolling cylinder (640) is not pressed.

6. The stylus flexible sensor automatic attaching apparatus of claim 1, wherein: The turnover mechanism (200) comprises: a turnover driving device (210); two turnover seats (220) oppositely fixed on the workbench (100); two turnover rotating shafts (230) rotationally supported corresponding to the two turnover seats (220); and a transmission assembly for synchronously transmitting the power of the turnover driving device (210) to the two turnover rotating shafts (230); Under the action of the transmission assembly, the two turnover rotating shafts (230) can synchronously rotate around their own axes.

7. The stylus flexible sensor automatic attaching apparatus according to claim 6, wherein: Each end clamping assembly further comprises a turnover half shaft (310) in transmission connection with the turnover shaft (230) of the corresponding side, the turnover half shaft (310) being axially provided with a containing groove for supporting the stylus; The end clamping actuator (340) comprises an axial sliding ring (341) and two symmetrical clamping jaws (342) hinged at the end of the turnover half shaft (310), the axial sliding ring (341) being sleeved on the outer periphery of the turnover half shaft (310) and being axially reciprocable, the inner periphery of the axial sliding ring (341) extruding the clamping jaws (342) to make them close or releasing the extrusion to make them open during the axial reciprocation.

8. The stylus flexible sensor automatic attaching apparatus according to claim 7, wherein: The outer periphery of the axial sliding ring (341) is provided with a radial flange (344), and the output end of the end driving member (320) is provided with a push ring (330), the push ring (330) and the end face of the radial flange (344) on the side close to the stylus constituting a push fitting surface. Further comprising a reset spring (350) coaxially arranged with the turnover half shaft (310), the two ends of the reset spring (350) being respectively abutted against the end face of the radial flange (344) away from the stylus and the turnover seat (220).

9. The stylus flexible sensor automatic attaching apparatus according to claim 7, wherein: Between the two groups of end clamping assemblies, a middle clamping mechanism (400) is further provided, the middle clamping mechanism (400) comprising: A middle driving assembly (410); Two lever clamping arms (430) having their bottom ends hinged to one of the turnover half shafts (310); A driving sliding block (420) sleeved on the outer periphery of the turnover half shaft (310) and being axially slidable under the driving of the middle driving assembly (410). 10.The stylus flexible sensor automatic attaching device of claim 1, wherein, The workbench (100) is further provided with a code scanning mechanism (700), the code scanning mechanism (700) reading the information mark on the stylus after the feeding is completed to realize the binding of the product and the production data.

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