Film laminating apparatus

Abstract

The application discloses a film pressing device, and relates to the field of automobile shock absorber piston production.The technical scheme is as follows: a position-fixed pressing station structure, a piston conveying mechanism, a guide cone and its clamping mechanism, a film storage mechanism, a film feeding mechanism, a film conveying mechanism and a pressing mechanism are arranged.The piston conveying mechanism positions the piston, and the guide cone clamping mechanism loads the guide cone;the film feeding mechanism lifts the film to a preset position, the film conveying mechanism sucks the film and sets the film on the guide cone;the pressing mechanism drives the pressing ring to press down, so that the film is separated from the guide cone and is pressed on the piston.The application eliminates positioning errors by using a fixed station, avoids spatial interference by means of multiple mechanisms, and significantly improves the pressing precision and production efficiency.

Description

Technical Field

[0001] This invention relates to the field of automobile shock absorber piston manufacturing, and particularly to a film lamination device. Background Technology

[0002] In the manufacturing process of shock absorber pistons, in order to improve their wear resistance and smoothness of movement, a layer of wear-resistant material is usually pressed onto the outer periphery of the piston.

[0003] Currently, Chinese patent CN112248459B discloses a piston coating production line. This design employs a rotating frame that allows the workpiece to rotate and index between multiple fixed stations, including a loading station, a processing station, and a picking station. Simultaneously, the design utilizes a first robotic arm and a second robotic arm to perform the transfer and loading / unloading operations of the piston, mandrel, and coating sheet.

[0004] This solution relies on the rotary indexing motion of the rotating frame to switch workpieces between stations. Mechanically, any indexing rotary table inevitably produces minute mechanical positioning errors during each start-up and stop. These errors accumulate during continuous production, causing the absolute position between the workpiece and the clamping head at each processing station to be inconsistent in each cycle. This affects the precise alignment required for the pressing process, thus reducing the yield rate. Furthermore, the rotating area of ​​the rotating frame and the working areas of the first and second robots partially overlap. In actual operation, the movement trajectories of these three components are highly susceptible to interference and congestion within the confined three-dimensional space. To avoid collisions, each mechanism must employ a strict sequential timing, meaning one action must be completed before another can begin, limiting the overall production cycle time and efficiency of the machine. Summary of the Invention

[0005] The purpose of this invention is to provide a film laminating device, which has the advantages of high positioning accuracy, high production efficiency, less spatial interference between various actuators, and strong operational stability.

[0006] The above-mentioned technical objective of the present invention is achieved through the following technical solution: A film laminating apparatus for laminating film onto a piston, comprising: A fixed-position press-fitting station structure is used to perform reference positioning of the piston during the press-fitting process; A piston conveying mechanism having a piston clamping part for gripping a piston, conveying and placing it on the press-fitting station structure, and adapted to remove the piston from the press-fitting station structure after it has been pressed. Guide cone; A guide cone clamping mechanism is used to grasp the guide cone and transport it to the press-fitting station structure for placement on the positioned piston, and is adapted to remove the guide cone from the press-fitting station structure after the film is pressed. Film storage mechanism for storing multiple films; The film feeding mechanism is used to retrieve film from the film storage mechanism and lift it sequentially to a preset pickup position; The film conveying mechanism has an adsorption section for picking up film from a preset pick-up position of the film feeding mechanism and conveying it to the pressing station structure, where it is fitted onto the placed guide cone. The pressing mechanism has a pressure ring. The pressing mechanism is located above the pressing station structure. It moves downward to drive the pressure ring, so that the film is disengaged from the guide cone and pressed onto the piston.

[0007] Further configuration: The guide cone clamping mechanism includes a gripper assembly, the gripper assembly includes a first gripping arm and a second gripping arm that move relative to each other, the first gripping arm and the second gripping arm engaging and disengaging to form a clamping groove; the top of the guide cone is provided with an annular groove; the clamping groove is adapted to engage with the annular groove of the guide cone to clamp the guide cone, so that the clamping groove and the annular groove form line contact or surface contact.

[0008] Further configuration: The gripper assembly further includes: a slide rail; a first gripping arm is fixedly disposed on the slide rail, and a second gripping arm is slidably mounted on the slide rail; wherein, the second gripping arm is adapted to perform a linear translational movement relative to the first gripping arm along the slide rail to realize the opening or closing of the gripper assembly.

[0009] Further configuration: The guide cone clamping mechanism includes a guide cone lateral movement mechanism for horizontal movement and a guide cone lifting mechanism for vertical movement. The gripper assembly is disposed on the guide cone lateral movement mechanism, and the guide cone lateral movement mechanism is disposed on the guide cone lifting mechanism.

[0010] Further details: The film storage mechanism includes: A rotatable turntable; A plurality of vertically arranged bar studs on the turntable, each bar stud being used to hold and store a plurality of films; A rotary device is used to drive the turntable to rotate.

[0011] Further configuration: The film feeding mechanism includes: A support, on which a vertical guide rail is provided; A slider, which is slidably mounted on a guide rail; A tray, mounted on a slider, for carrying film; A linear reciprocating device is used to drive a slider to reciprocate vertically along a guide rail, so as to sequentially lift the film from the film storage mechanism to a preset pickup position.

[0012] Further configuration: The piston delivery mechanism includes: Piston transfer mechanism for horizontal movement; A piston lifting mechanism for vertical movement, wherein the piston clamping part is disposed on the piston lifting mechanism, and the piston lifting mechanism is disposed on the piston transfer mechanism.

[0013] Further configuration: The pressing mechanism also includes: Drive unit; The movable plate, wherein the pressure ring is mounted on the movable plate; At least one column is provided for guiding the movable plate to perform vertical reciprocating motion under the drive of the drive device.

[0014] Further details: The film transport mechanism includes: Film transfer mechanism for horizontal reciprocating motion; A film lifting mechanism for vertical reciprocating motion; the adsorption part is disposed on the film lifting mechanism, and the film lifting mechanism is disposed on the film transfer mechanism.

[0015] Further configuration: Includes a testing organization, comprising a first testing module and a second testing module. The first detection module includes: The first sensor is used to detect whether the piston has been successfully placed on the press-fitting station structure by the piston conveying mechanism. The second sensor is used to detect whether the guide cone has been successfully placed on the piston by the guide cone clamping mechanism. The third sensor is used to detect whether the film has been successfully fitted onto the guide cone by the film transport mechanism; The second detection module includes: The fourth sensor is located on the film conveying mechanism and moves back and forth between the film feeding mechanism and the pressing station structure along with the adsorption part. The fifth sensor is installed at the initial position of the adsorption section to detect the initial zero position of the adsorption section.

[0016] In summary, the present invention has the following beneficial effects: First, in this invention, by adopting a fixed-position pressing station structure as a single working reference, the mechanical backlash and cumulative positioning error that are unavoidable during the frequent start-stop process of the rotating indexing plate in the prior art are completely eliminated, ensuring the absolute coaxiality of the piston and the upper pressing mechanism in each pressing cycle, thereby significantly improving the centering accuracy and yield of film pressing.

[0017] This invention decouples the serial processes originally concentrated on the rotating flow line into parallel or independent operations around a fixed workstation by configuring independent piston conveying mechanism, guide cone clamping mechanism and film conveying mechanism, each with its own function. This effectively avoids the risk of interference in the movement trajectory of multiple robotic arms in a confined space, and enables each mechanism to complete the feeding, assembly, pressing and unloading actions in a more compact sequence, which greatly shortens the production cycle of a single product.

[0018] This invention uses a film feeding mechanism to sequentially lift film from the storage mechanism to a constant preset pickup position, ensuring that the adsorption part of the film conveying mechanism always performs the pickup operation at a fixed height coordinate. This eliminates the variable adsorption stroke caused by changes in the stacking height of the film, simplifies the control logic of the robotic arm, and ensures the stability and success rate of the pickup action.

[0019] This invention utilizes the cooperation between the guide cone clamping mechanism and the pressing mechanism to guide the film as an intermediate medium to achieve uniform diameter expansion and smooth transition during the pressing process. This avoids stress concentration damage or edge curling that may occur when the film is directly subjected to force on the piston edge. At the same time, the automatic transfer function of the guide cone realizes the complete automation of this precision process, ensuring the consistency of the pressing quality in mass production.

[0020] Secondly, in this invention, the clamping groove of the gripper assembly cooperates with the annular groove at the top of the guide cone, and the mechanical interlocking between the structures replaces simple friction clamping, thereby creating a rigid limit in the vertical direction. This completely eliminates the risk of the guide cone falling off due to inertia or axial slippage under high-speed transfer or emergency stop conditions, ensuring high reliability of material transfer.

[0021] This invention utilizes the line or surface contact constraints formed during the insertion of the clamping groove into the annular groove to generate a forced self-centering and attitude correction effect on the guide cone at the moment the gripper closes. This automatically compensates for the slight positional deviation of the guide cone during gripping, ensuring the coaxiality and perpendicularity of the guide cone when placed on the piston, and providing a high-precision geometric reference for the accurate guidance of the subsequent film.

[0022] Third, by fixing the first clamping arm as a rigid positioning reference, the present invention utilizes the unidirectional feed of the second clamping arm along the slide rail to drive the guide cone sidewall to closely adhere to the fixed reference, thus completely eliminating the center drift problem caused by the bidirectional centering gripper due to connecting rod wear, asynchronous movement on both sides, or air pressure fluctuations. This ensures that the absolute position height of the guide cone relative to the robot's coordinate system is consistent after each gripping, thereby significantly improving the assembly accuracy of the guide cone on the piston.

[0023] This invention constrains the linear translational degree of freedom of the second clamping arm by using a slide rail, strictly limiting the direction of the clamping force to a horizontal straight line. This avoids the upward or skewed interference caused by the arc component force that may be generated during the closing process of the swinging gripper on the guide cone, ensuring a smooth clamping process without damaging the predetermined posture of the guide cone.

[0024] Fourth, this invention constructs a multi-level interlock detection mechanism at the press-fitting station using the first, second, and third sensors. It strictly follows sequential logic to verify the three key processes of piston feeding, guide cone assembly, and film mounting one by one. The pressing mechanism is only allowed to operate when all elements are complete, thus eliminating damage to the press head and ineffective processing caused by missing parts, omissions, or misalignments, and reducing equipment maintenance costs and scrap rate.

[0025] This invention establishes an absolute zero point reference for the mechanical coordinate system using the fourth and fifth sensors, and eliminates the cumulative position error generated by the transmission mechanism during long-term high-frequency reciprocating motion by periodic zeroing correction. This ensures the long-term stability of the positioning accuracy of the adsorption unit between the material picking and discharging positions, and guarantees a high degree of overlap in the film overlay operation. Attached Figure Description

[0026] Figure 1 This is a three-dimensional structural diagram of the film laminating device; Figure 2 This is a top-view structural diagram of the film laminating device; Figure 3 This is a structural diagram of the film storage mechanism, the film loading mechanism, and the film conveying mechanism; Figure 4 This is a schematic diagram of the guide cone clamping mechanism; Figure 5 This is a schematic diagram of the gripper assembly; Figure 6 This is a schematic diagram of the pressing mechanism.

[0027] In the diagram, 10 is the piston; 20 is the guide cone; and 21 is the annular groove. 100. Film storage mechanism; 101. Turntable; 102. Material bar; 103. Rotary device; 200. Film feeding mechanism; 201. Support; 202. Guide rail; 203. Slider; 204. Tray; 205. Linear reciprocating device; 300. Film transport mechanism; 301. Adsorption unit; 302. Film lifting mechanism; 303. Film transfer mechanism; 400. Press-fitting station structure; 500. Guide cone clamping mechanism; 501. Gripper assembly; 502. Guide cone lifting mechanism; 503. Guide cone lateral movement mechanism; 504. Slide rail; 505. First clamping arm; 506. Second clamping arm; 507. Grip groove; 600. Piston conveying mechanism; 601. Piston clamping part; 602. Piston lifting mechanism; 603. Piston transfer mechanism; 700. Pressing mechanism; 701. Column; 702. Pressure ring; 703. Fixed plate; 704. Movable plate; 705. Drive device; 800. Detection mechanism; 801. First sensor; 802. Second sensor; 803. Third sensor; 804. Fourth sensor; 805. Fifth sensor. Detailed Implementation

[0028] The present invention will be further described in detail below with reference to the accompanying drawings.

[0029] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0030] Referring to specific embodiments, such as Figure 1 and Figure 2 As shown, this embodiment provides a film pressing device for pressing film onto a piston 10. The device includes a pressing station structure 400, a piston conveying mechanism 600, a guide cone 20, a guide cone clamping mechanism 500, a film storage mechanism 100, a film feeding mechanism 200, a film conveying mechanism 300, and a pressing mechanism 700.

[0031] The pressing station structure 400 is fixedly installed on the machine platform as a reference area for operation, used to support and position the piston 10 during the pressing process.

[0032] A piston conveying mechanism 600 is disposed beside or above the pressing station structure 400. This mechanism has a piston clamping part 601. The piston clamping part 601 is configured to grip the piston 10, convey the piston 10, and place it on the pressing station structure 400. Furthermore, the piston conveying mechanism 600 is also adapted to remove the piston 10 from the pressing station structure 400 using the piston clamping part 601 after the piston 10 has been pressed.

[0033] The device is equipped with a guide cone 20 and a guide cone clamping mechanism 500. The guide cone clamping mechanism 500 is movably disposed near the pressing station structure 400 and is used to grip the guide cone 20. The guide cone clamping mechanism 500 transports the guide cone 20 to the pressing station structure 400 and coaxially places the guide cone 20 on top of the positioned piston 10. The guide cone clamping mechanism 500 is also configured to remove the guide cone 20 from the pressing station structure 400 after the film is pressed.

[0034] Along the film feeding path, the device is sequentially equipped with a film storage mechanism 100, a film loading mechanism 200, and a film conveying mechanism 300. The film storage mechanism 100 is used to store film. The film loading mechanism 200 is connected to the film storage mechanism 100 and is used to retrieve film from the film storage mechanism 100 and sequentially lift the film to a preset pickup position.

[0035] The film conveying mechanism 300 is movably disposed between the film feeding mechanism 200 and the pressing station structure 400. This mechanism has an adsorption unit 301. The adsorption unit 301 is used to pick up the film from a preset pick-up position and convey the film to the pressing station structure 400, and then put the film onto the guide cone 20 that has been placed on the piston 10.

[0036] The pressing mechanism 700 is located directly above the pressing station structure 400, and the mechanism has a pressure ring 702. The pressing mechanism 700 can drive the pressure ring 702 to move downward, so that the pressure ring 702 contacts the film, pushes the film to detach from the surface of the guide cone 20 and press it onto the outer wall of the piston 10.

[0037] like Figure 1 and Figure 2 As shown, the piston conveying mechanism 600 includes a piston transfer mechanism 603 and a piston lifting mechanism 602.

[0038] The piston transfer mechanism 603 serves as a horizontal drive component, used to drive the mechanism to reciprocate in the horizontal direction. The piston transfer mechanism 603 can take the form of an electric linear module, a rodless cylinder assembly, a synchronous belt drive mechanism, or a rack and pinion moving platform.

[0039] The piston lifting mechanism 602 is mounted on the moving end or slide of the piston transfer mechanism 603, and moves horizontally synchronously with the piston transfer mechanism 603. The piston lifting mechanism 602 is configured to perform reciprocating motion in the vertical direction. The specific form of the piston lifting mechanism 602 can be a cylinder, a precision electric slide, or a screw jack.

[0040] The piston clamping unit 601 is installed at the lower end of the piston lifting mechanism 602. Through the horizontal conveying of the piston transfer mechanism 603 and the vertical lifting of the piston lifting mechanism 602, the piston 10 is aligned, gripped and transported.

[0041] like Figure 3 As shown, the film storage mechanism 100 includes a turntable 101, a feed bar 102, and a rotary device 103.

[0042] The turntable 101 is rotatably mounted and serves as a support component. The feed rod 102 is vertically disposed on the surface of the turntable 101 for passing through and fitting film, thereby storing film in a stacked manner. The feed rod 102 may be a solid metal bar, a hollow tube, or an irregularly shaped column adapted to the shape of the inner hole of the film.

[0043] The rotary device 103 is located below or to one side of the turntable 101 and is connected to the turntable 101 for driving the turntable 101 to rotate around its axis. The rotary device 103 can be a combination of a servo motor and a reducer, or it can be a cam divider or a pneumatic rotary table.

[0044] like Figure 3 As shown, the film loading mechanism 200 includes a support 201, a slider 203, a tray 204, and a linear reciprocating device 205.

[0045] The support 201 serves as the main support, with a guide rail 202 vertically mounted on it. The slider 203 is slidably mounted on the guide rail 202 and, constrained by the guide rail 202, can only move vertically. The tray 204 is fixedly mounted on the slider 203 and rises and falls synchronously with the slider 203. The upper surface of the tray 204 is used to support the film. The tray is designed with a fork-like or U-shaped structure. The width of the fork opening of the tray 204 is greater than the diameter of the material rod 102.

[0046] The linear reciprocating device 205 is mounted on or near the support 201, and its output end is connected to the slider 203 for transmission. It drives the slider 203 to reciprocate vertically along the guide rail 202, thereby sequentially lifting the film on the tray 204 from the lower receiving position to the upper preset picking position. The linear reciprocating device 205 can be a cylinder, an electric push rod, a lead screw module, a linear motor, or a gear and rack transmission mechanism.

[0047] like Figure 3 As shown, the film transport mechanism 300 includes a film transfer mechanism 303 and a film lifting mechanism 302.

[0048] The film transfer mechanism 303, as a horizontal drive unit, is configured to perform reciprocating motion in the horizontal direction. The specific form of this film transfer mechanism 303 can be a synchronous belt linear module, a lead screw linear module, a rodless cylinder, or a cantilevered multi-axis manipulator. A servo-electric linear module is preferred.

[0049] The film lifting mechanism 302 is mounted on the movable seat or output end of the film transfer mechanism 303 and moves horizontally synchronously with the film transfer mechanism 303. The film lifting mechanism 302 is configured to perform reciprocating motion in the vertical direction. The specific form of the film lifting mechanism 302 can be a precision cylinder, an electric slide, a voice coil motor module, or a rack and pinion lift.

[0050] The adsorption unit 301 is fixedly installed at the lower end of the film lifting mechanism 302. Through the horizontal conveying of the film transfer mechanism 303 and the vertical lifting of the film lifting mechanism 302, the spatial transfer of film between different workstations is realized. The adsorption unit 301 can specifically be a vacuum suction cup, a negative pressure sponge suction cup, or a Bernoulli suction cup.

[0051] like Figure 4 and Figure 5 As shown, the guide cone clamping mechanism 500 mainly includes a gripper assembly 501. The gripper assembly 501 consists of a first gripping arm 505 and a second gripping arm 506. The first gripping arm 505 and the second gripping arm 506 are arranged opposite to each other, and they can move relatively closer or further apart, thereby realizing a disengagement action. When the inner ends of the first gripping arm 505 and the second gripping arm 506 are closed, they together form a clamping groove 507.

[0052] A ring groove 21 is formed around the top outer periphery of the guide cone 20. The cross-sectional shape of the ring groove 21 can be designed as rectangular, trapezoidal, V-shaped, or semi-circular. The main body of the guide cone 20 is truncated cone-shaped, and its outer peripheral surface is a smoothly transitioning guide slope. The diameter of the guide slope gradually increases from top to bottom until the bottom diameter is slightly larger than the diameter of the piston 10, which is used to evenly spread the film and guide it onto the piston 10.

[0053] In the gripping state, the gripper assembly 501's clamping groove 507 engages within the annular groove 21 at the top of the guide cone 20, thereby axially limiting and radially clamping the guide cone 20. The contact between the clamping groove 507 and the annular groove 21 is configured as either line contact or surface contact. Specifically, line contact can be achieved by the wedge-shaped edge of the gripping arm abutting against the corner or sidewall of the annular groove 21; surface contact can be achieved by the inner contoured surface of the gripping arm tightly conforming to the bottom or sidewall surface of the annular groove 21.

[0054] like Figure 4 and Figure 5As shown, the gripper assembly 501 also includes a slide rail 504. A first gripping arm 505 is fixedly mounted on the slide rail 504, serving as a gripping end with a fixed position. The first gripping arm 505 can be connected to the slide rail 504 by bolt fastening or by using an integrally formed structure.

[0055] The second clamping arm 506 is slidably mounted on the slide rail 504 and is arranged opposite to the first clamping arm 505. The second clamping arm 506 is configured to perform linear translational movement relative to the first clamping arm 505 along the slide rail 504. By moving the second clamping arm 506 linearly forward and backward on the slide rail 504, the distance between it and the first clamping arm 505 is changed, thereby realizing the opening or closing of the gripper assembly 501. The slide rail 504 can be a precision linear guide pair or a dovetail guide structure.

[0056] like Figure 4 and Figure 5 As shown, the guide cone clamping mechanism 500 includes a guide cone lifting mechanism 502 and a guide cone lateral movement mechanism 503.

[0057] The guide cone lifting mechanism 502, as a vertical drive component, is configured to reciprocate in the vertical direction. The guide cone lifting mechanism 502 can be a multi-axis cylinder, a precision electric lifting platform, a lead screw lifting module, or a linear motor platform.

[0058] The guide cone lateral movement mechanism 503 is mounted on the output end or lifting seat of the guide cone lifting mechanism 502, and performs vertical displacement synchronously with the guide cone lifting mechanism 502. The guide cone lateral movement mechanism 503 is configured to reciprocate in the horizontal direction. The specific form of the guide cone lateral movement mechanism 503 can be a cylinder slide, an electric push rod, a synchronous belt linear module, or a gear and rack movement mechanism.

[0059] The gripper assembly 501 is installed at the moving end of the guide cone lateral movement mechanism 503. The spatial transportation and positioning of the guide cone 20 is achieved by superimposing the vertical lifting of the guide cone lifting mechanism 502 and the horizontal lateral movement of the guide cone lateral movement mechanism 503.

[0060] like Figure 6 As shown, the pressing mechanism 700 includes a drive device 705, a movable plate 704, and a column 701.

[0061] The drive unit 705 is mounted on a fixed frame or crossbeam and serves as a power output component. The specific form of the drive unit 705 can be a conventional cylinder, a booster cylinder, a hydraulic cylinder, or a lead screw module driven by a servo motor.

[0062] At least one column 701 is provided and vertically fixed to the frame to provide guidance and support for moving parts. Column 701 is typically a precision guide shaft with a hardened surface, or it can be the slide rail portion of a linear guide pair.

[0063] The movable plate 704 is slidably mounted on the column 701 and connected to the output end of the drive device 705. Driven by the drive device 705, the movable plate 704 is guided by the column 701 to reciprocate vertically. The pressure ring 702 is fixedly mounted on the bottom surface of the movable plate 704 and rises and falls synchronously with the movable plate 704 to perform the pressing action on the film.

[0064] It also includes testing organization 800, which includes a first testing module and a second testing module: like Figure 6 As shown, the first detection module is located in the area of ​​the pressing station structure 400. The first sensor 801 is mounted on the pressing station structure 400 or its surrounding frame, with its detection end aligned with the positioning area of ​​the piston 10, used to detect whether the piston 10 has been placed on the pressing station structure 400 by the piston conveying mechanism 600. The second sensor 802 is located above or to the side of the pressing station structure 400, used to detect whether the guide cone 20 has been placed on the piston 10 by the guide cone clamping mechanism 500. The third sensor 803 is also located near the pressing station structure 400, with its height corresponding to the film mounting position, used to detect whether the film has been mounted on the guide cone 20 by the film conveying mechanism 300. The first sensor 801, the second sensor 802, and the third sensor 803 can specifically be photoelectric sensors, fiber optic sensors, laser sensors, or visual inspection cameras.

[0065] like Figure 2 and Figure 4 As shown, the second detection module is arranged on the film conveying mechanism 300 and its movement path. The fourth sensor 804 is fixedly mounted on the moving component of the film conveying mechanism 300, remaining relatively stationary with the adsorption unit 301, and reciprocates with the adsorption unit 301 between the film loading mechanism 200 and the pressing station structure 400. The fifth sensor 805 is fixedly mounted on the frame or support 201 corresponding to the initial position of the adsorption unit 301, and is used to detect whether the adsorption unit 301 has reached the initial zero position. The fourth sensor 804 and the fifth sensor 805 can specifically be photoelectric switches, proximity switches, micro switches, or magnetic switches.

[0066] It should be noted that the device also includes a control device. The control device is existing technology. The input terminals of the control device are electrically connected to the first sensor 801, the second sensor 802, the third sensor 803, the fourth sensor 804, and the fifth sensor 805, respectively, for receiving detection signals from each sensor. The output terminals of the control device are electrically connected to the driving components of the piston conveying mechanism 600, the guide cone clamping mechanism 500, the film feeding mechanism 200, the film conveying mechanism 300, and the pressing mechanism 700, respectively. Specifically, the control device employs a PLC programmable logic controller, an industrial computer (IPC), or a microcontroller control system, coordinating the actions of each actuator according to a predetermined sequence through a preset control program.

[0067] Based on the above structure, the specific working process of the film laminating device provided in this embodiment is as follows: In the initial state, each mechanism is at the reset origin, and a film is sleeved on the material rod 102 of the film storage mechanism 100.

[0068] First, during the piston 10 feeding stage, the piston conveying mechanism 600 operates, and the piston transfer mechanism 603 drives the piston lifting mechanism 602 to move to the picking position. The piston clamping part 601 grabs the piston 10 to be processed; then it is transferred to the press-fitting station structure 400 and the piston 10 is precisely placed on the press-fitting station structure 400. At this time, the first sensor 801 detects the piston 10's arrival signal.

[0069] Next, the assembly stage of the guide cone 20 begins. The guide cone clamping mechanism 500 activates, controlling the clamping jaw assembly 501 to close securely clamp the guide cone 20. Subsequently, the guide cone lateral movement mechanism 503, in conjunction with the guide cone lifting mechanism 502, drives the guide cone 20 to move, transporting it to the pressing station structure 400, and precisely placing the guide cone 20 coaxially at the top of the positioned piston 10. At this time, the second sensor 802 detects and provides feedback on the positioning signal of the guide cone 20. After confirming its positioning, the clamping jaw assembly 501 opens to release the clamp on the guide cone 20, and the guide cone clamping mechanism 500 then quickly resets and moves away from the area of ​​the pressing station structure 400, thereby freeing up vertical space for subsequent film overlay and pressing operations.

[0070] Simultaneously, the film loading and conveying stage begins. The linear reciprocating device 205 of the film loading mechanism 200 drives the slider 203 upward, lifting the film on the tray 204 to the preset pickup position. The suction unit 301 of the film conveying mechanism 300 moves to this pickup position to pick up the topmost film. After the fourth sensor 804 detects successful film suction, the film conveying mechanism 300 transports the film above the pressing station structure 400 and descends to place the film onto the guide cone 20. At this time, the third sensor 803 detects the film placement signal.

[0071] Next, the pressing stage. After the control device receives confirmation signals from the first, second, and third sensors 803, it controls the pressing mechanism 700 to operate. The drive device 705 drives the movable plate 704 downward along the column 701, and the pressure ring 702 contacts the film and applies downward force. Under the push of the pressure ring 702, the film gradually expands in diameter along the outer conical surface of the guide cone 20 and slides down, finally tightly covering the outer circumferential surface of the piston 10.

[0072] Finally, the unloading stage. The pressing mechanism 700 resets and moves upward. The guide cone clamping mechanism 500 re-enters, clamps the guide cone 20, and moves it out of the pressing station to await the next work cycle. The piston conveying mechanism 600 enters and removes the processed piston 10 assembly from the pressing station structure 400, completing one work cycle.

[0073] The above embodiments are merely explanations of the present invention and are not intended to limit the present invention. After reading this specification, those skilled in the art can make modifications to these embodiments without contributing any inventive step, but as long as they are within the scope of the claims of the present invention, they are protected by patent law.

Claims

1. A film laminating device for laminating film onto a piston (10), characterized in that, include: A fixed-position press-fitting station structure (400) is used to perform reference positioning of the piston (10) during the press-fitting process; The piston conveying mechanism (600) has a piston clamping part (601) for gripping the piston (10) and conveying and placing it on the press-fitting station structure (400), and is adapted to remove the piston (10) from the press-fitting station structure (400) after it has been pressed. Guide cone (20); A guide cone clamping mechanism (500) is used to grip the guide cone (20) and transport it to the press-fitting station structure (400) for placement on the positioned piston (10), and is adapted to remove the guide cone (20) from the press-fitting station structure (400) after the film is pressed. Film storage mechanism (100) for storing multiple films; Film feeding mechanism (200) is used to obtain film from film storage mechanism (100) and lift it sequentially to a preset pick-up position; The film conveying mechanism (300) has an adsorption part (301) for picking up film from a preset pick-up position of the film feeding mechanism (200) and conveying it to the pressing station structure (400) and fitting it onto the placed guide cone (20). The pressing mechanism (700) has a pressure ring (702). The pressing mechanism (700) is located above the pressing station structure (400). It moves downward to drive the pressure ring (702) so that the film is disengaged from the guide cone (20) and pressed onto the piston (10). The guide cone clamping mechanism (500) includes a gripper assembly (501), which includes a first gripping arm (505) and a second gripping arm (506) that move relative to each other. The first gripping arm (505) and the second gripping arm (506) engage and disengage to form a clamping groove (507). The top of the guide cone (20) is provided with an annular groove (21). The clamping groove (507) is adapted to engage with the annular groove (21) of the guide cone (20) to clamp the guide cone (20), so that the clamping groove (507) and the annular groove (21) form a line contact or a surface contact. The film loading mechanism (200) includes: Support (201), on which a vertical guide rail (202) is provided; A slider (203) is slidably mounted on a guide rail (202); A tray (204) is mounted on a slider (203) for carrying film; A linear reciprocating device (205) is used to drive a slider (203) to reciprocate vertically along a guide rail (202) so as to lift the film from the film storage mechanism (100) to a preset pickup position. The film transport mechanism (300) includes: Film transfer mechanism (303) for horizontal reciprocating motion; A film lifting mechanism (302) for vertical reciprocating motion; the adsorption part (301) is disposed on the film lifting mechanism (302), and the film lifting mechanism (302) is disposed on the film transfer mechanism (303).

2. The film laminating apparatus according to claim 1, characterized in that: The gripper assembly (501) further includes: a slide rail (504); a first gripping arm (505) is fixedly disposed on the slide rail (504), and a second gripping arm (506) is slidably mounted on the slide rail (504); wherein the second gripping arm (506) is adapted to perform a linear translational movement relative to the first gripping arm (505) along the slide rail (504) to realize the opening or closing of the gripper assembly (501).

3. The film laminating apparatus according to claim 1, characterized in that: The guide cone clamping mechanism (500) includes a guide cone lateral movement mechanism (503) for horizontal movement and a guide cone lifting mechanism (502) for vertical movement. The gripper assembly (501) is disposed on the guide cone lateral movement mechanism (503), and the guide cone lateral movement mechanism (503) is disposed on the guide cone lifting mechanism (502).

4. The film laminating apparatus according to claim 1, characterized in that: The film storage mechanism (100) includes: Rotatable turntable (101); A plurality of feed rods (102) are vertically arranged on the turntable (101), each of the feed rods (102) being used to hold and store a plurality of films; A rotary device (103) is used to drive the turntable (101) to rotate.

5. The film laminating apparatus according to claim 1, characterized in that: The piston delivery mechanism (600) includes: Piston transfer mechanism (603) for horizontal movement; A piston lifting mechanism (602) for vertical movement, wherein the piston clamping part (601) is disposed on the piston lifting mechanism (602), and the piston lifting mechanism (602) is disposed on the piston transfer mechanism (603).

6. The film laminating apparatus according to claim 1, characterized in that: The pressing mechanism (700) further includes: Drive unit (705); Movable plate (704), the pressure ring (702) is mounted on the movable plate (704); At least one column (701) is used to guide the movable plate (704) to perform vertical reciprocating motion under the drive of the drive device (705).

7. The film laminating apparatus according to claim 1, characterized in that: It also includes a testing organization (800), comprising a first testing module and a second testing module: The first detection module includes: The first sensor (801) is used to detect whether the piston (10) has been successfully placed on the press-fitting station structure (400) by the piston conveying mechanism (600); The second sensor (802) is used to detect whether the guide cone (20) has been successfully placed on the piston (10) by the guide cone clamping mechanism (500); The third sensor (803) is used to detect whether the film has been successfully placed on the guide cone (20) by the film transport mechanism (300); The second detection module includes: The fourth sensor (804) is mounted on the film conveying mechanism (300) and moves back and forth between the film feeding mechanism (200) and the pressing station structure (400) along with the adsorption part (301); The fifth sensor (805) is installed at the initial position of the adsorption unit (301) to detect the initial zero position of the adsorption unit (301).

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