A three-linkage handling mechanism

Abstract

This utility model relates to the field of flexible circuit board testing equipment and provides a three-linkage handling mechanism. The three-linkage handling mechanism includes an X-axis module, a Y-axis module, a Z-axis module, and a floating material handling module. The floating material handling module includes a three-linkage connecting plate, multiple floating material handling plates, and a suction nozzle. The floating material handling plates are floatingly connected to the bottom of the three-linkage connecting plate, and the suction nozzles are disposed at the bottom of the floating material handling plates. The three-linkage connecting plate is connected to the X-axis module to drive its movement in the X-axis direction; the X-axis module is connected to the Z-axis module to drive its movement in the Z-axis direction; and the Z-axis module is connected to the Y-axis module to drive its movement in the Y-axis direction. The three-linkage handling mechanism improves space utilization and reduces testing distortion caused by noise.

Description

Technical Field

[0001] This utility model belongs to the field of flexible circuit board testing equipment, and in particular relates to a three-linkage handling mechanism. Background Technology

[0002] With the widespread adoption of mobile electronic products and the advent of the 5G era, electronic products such as mobile phones and wearable devices are facing increasingly higher demands in terms of size and functionality. Flexible printed circuit boards (FPCs), as a widely used component in electronic products, are increasingly trending towards integration and miniaturization. The size of headphone / microphone FPCs has shrunk by 60% compared to five years ago, with component pad spacing ≤0.15mm. This places higher demands on test positioning, product clamping consistency, and handling stability.

[0003] With products becoming increasingly integrated and miniaturized, traditional assembly line loading platforms have shortcomings. Assembly line vibrations lead to poor acoustic testing, affecting test accuracy; space utilization is insufficient; multi-axis robotic arms, when repeatedly contacting the FPC with different servo control systems, are prone to damaging microphones and crushing the FPC itself, making it difficult to control consistency, thus reducing product yield and wasting significant human and material resources. Summary of the Invention

[0004] The purpose of this utility model embodiment is to provide a three-linkage handling mechanism, which aims to solve three core defects in existing FPC handling technology: test distortion caused by noise, microscopic damage, and low space utilization.

[0005] This utility model embodiment is implemented as follows: a three-linkage conveying mechanism, which includes an X-axis module, a Y-axis module, a Z-axis module, and a floating material handling module;

[0006] The floating material handling module includes a three-linkage connecting plate, multiple floating material handling plates, and a suction nozzle. The floating material handling plates are floatingly connected to the bottom of the three-linkage connecting plate, and the suction nozzle is disposed at the bottom of the floating material handling plate.

[0007] The three-linkage connecting plate is connected to the X-axis module to drive the three-linkage connecting plate to move in the X-axis direction. The X-axis module is connected to the Z-axis module to drive the three-linkage connecting plate to move in the Z-axis direction. The Z-axis module is connected to the Y-axis module to drive the three-linkage connecting plate to move in the Y-axis direction.

[0008] Furthermore, the floating material handling module also includes a guide pin, which is disposed at the bottom of the floating material handling plate and is used to engage with the pin holes of the workstation carrier plate.

[0009] Furthermore, the floating material handling module also includes a limiting shaft, which is located at the bottom of the floating material handling plate to prevent the floating material handling plate from over-pressing the product.

[0010] Furthermore, three floating material handling plates are provided.

[0011] Furthermore, the X-axis module includes an X-axis guide rail, an X-axis connecting plate, and an X-axis drive device. The X-axis drive device and the X-axis guide rail are disposed on the X-axis connecting plate. The X-axis guide rail is slidably connected to the three-linkage connecting plate. The X-axis drive device is used to push the three-linkage connecting plate.

[0012] Furthermore, the Z-axis module includes a Z-axis guide rail, a Z-axis connecting plate, and a Z-axis driving device. The Z-axis driving device and the Z-axis guide rail are disposed on the Z-axis connecting plate. The Z-axis guide rail is slidably connected to the X-axis connecting plate. The Z-axis driving device is used to push the X-axis connecting plate.

[0013] Furthermore, the Y-axis module includes a Y-axis guide rail, a Y-axis connecting plate, and a Y-axis driving device. The Y-axis guide rail and the Y-axis driving device are disposed on the Y-axis connecting plate. The Y-axis guide rail is slidably connected to the Z-axis connecting plate. The Y-axis driving device is used to push the Y-axis connecting plate.

[0014] The three-linkage material handling mechanism provided in this embodiment has the following advantages: This embodiment utilizes material handling at multiple workstations, employing a single handling base and servo control system to ensure the uniformity of material handling at multiple picking positions after equipment adjustment. Multiple floating picking plates each have a floating function, which can absorb some of the errors caused by assembly and processing tolerances. The three-linkage material handling method improves space utilization. Attached Figure Description

[0015] Figure 1 A perspective view of a three-linkage conveying mechanism provided for an embodiment of this utility model;

[0016] Figure 2 Assembly diagram of the floating material handling module and the X-axis module provided in this embodiment of the utility model;

[0017] Figure 3 Assembly diagram of the Y-axis module and Z-axis module provided in this embodiment of the utility model;

[0018] 100. X-axis module; 110. X-axis guide rail; 120. X-axis connecting plate; 130. X-axis drive device;

[0019] 200. Y-axis module; 210. Y-axis guide rail; 220. Y-axis connecting plate; 230. Y-axis drive device;

[0020] 300. Z-axis module; 310. Z-axis guide rail; 320. Z-axis connecting plate; 330. Z-axis drive unit;

[0021] 400. Floating material handling module; 410. Three-linkage connecting plate; 420. Floating material handling plate; 430. Suction nozzle; 440. Guide pin; 450. Limiting shaft. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this utility model and are not intended to limit this utility model.

[0023] It is understood that the terms “X-axis module”, “Y-axis module”, and “Z-axis module” used in this application are used to describe mechanisms that move linearly in different directions, but unless otherwise specified, these components are not limited by these terms. For example, the X-axis can be the Y-axis or the Z-axis, and the Y-axis can be the X-axis or the Z-axis.

[0024] In one embodiment, such as Figure 1 As shown, a three-linkage conveying mechanism is proposed, which includes an X-axis module 100, a Y-axis module 200, a Z-axis module 300, and a floating material handling module 400.

[0025] The floating material handling module 400 includes a three-linkage connecting plate 410, multiple floating material handling plates 420 and a suction nozzle 430. The floating material handling plates 420 are floatingly connected to the bottom of the three-linkage connecting plate 410, and the suction nozzle 430 is disposed at the bottom of the floating material handling plate 420.

[0026] The three-linkage connecting plate 410 is connected to the X-axis module 100 to drive the three-linkage connecting plate 410 to move in the X-axis direction. The X-axis module 100 is connected to the Z-axis module 300 to drive the three-linkage connecting plate 410 to move in the Z-axis direction. The Z-axis module 300 is connected to the Y-axis module 200 to drive the three-linkage connecting plate 410 to move in the Y-axis direction.

[0027] In this embodiment, to overcome the shortcomings of traditional material handling methods, a three-station material handling system is used, employing a single handling base and servo control system to ensure the consistency of material handling at each of the three picking positions after equipment adjustment. It is understood that three stations are only one possible implementation method, and the specific number of stations can be determined according to actual production conditions. In this embodiment, the three floating picking plates 420 each have a floating function, which can absorb some of the errors caused by assembly and processing tolerances. This embodiment uses a three-linkage handling method, improving space utilization by 30%.

[0028] In this embodiment, as Figure 2 As shown, the three-linkage connecting plate 410 and the floating pick-up plate 420 are floatingly connected. This floating connection means that the floating pick-up plate 420 can float up and down relative to the three-linkage connecting plate 410. Since the three-linkage connecting plate 410 is fixedly mounted at the output end of the X-axis module 100, the relatively floating pick-up plate 420 can offset some errors. Considering accuracy, in this embodiment, the three-linkage connecting plate 410 and the floating pick-up plate 420 are connected by a floating copper sleeve, secured with screws to limit the maximum floating distance between them. The floating copper sleeve typically uses a copper sleeve with a spring-loaded component (such as a spring) to achieve the floating effect.

[0029] In this embodiment, as Figure 2 As shown, the floating material handling module 400 also includes guide pins 440, which are located at the bottom of the floating material handling plate 420 and are used to engage with the pin holes of the workstation carrier plate. Each floating connecting plate is equipped with two guide pins 440 to form a positioning mechanism, which is used to ensure the positional accuracy difference caused by processing and assembly. The guide pins 440 ensure the consistency of product clamping at each workstation, reducing equipment costs, the complexity of manual operation and maintenance costs, and improving the accuracy from the traditional ±0.1mm to the current ±0.05mm.

[0030] In this embodiment, as Figure 2 As shown, the floating material handling module 400 also includes a limiting shaft 450, which is disposed at the bottom of the floating material handling plate 420 to prevent the floating material handling plate 420 from over-pressing the product. The limiting shaft 450 avoids over-pressing along the Z-axis by means of hard limiting.

[0031] In this embodiment, as Figure 2 and 3As shown, the X-axis module 100, Y-axis module 200, and Z-axis module 300 are linear motion modules used to drive the floating material handling module 400 to move linearly along the corresponding axes. Considering the smoothness of linear motion, this embodiment adopts a sliding connection method of guide rails and slides. For a specific structure, the X-axis module 100 includes an X-axis guide rail 110, an X-axis connecting plate 120, and an X-axis drive device 130. The X-axis drive device 130 and the X-axis guide rail 110 are disposed on the X-axis connecting plate 120. The X-axis guide rail 110 is slidably connected to the three-linkage connecting plate 410. The X-axis drive device 130 is used to push the three-linkage connecting plate 410. The Z-axis module 300 includes a Z-axis guide rail 310, a Z-axis connecting plate 320, and a Z-axis drive device 330. The Z-axis drive device 330 and the Z-axis guide rail 310 are disposed on the Z-axis connecting plate 320. The Z-axis guide rail 310 is slidably connected to the X-axis connecting plate 120. The Z-axis drive device 330 is used to push the X-axis connecting plate 120. The Y-axis module 200 includes a Y-axis guide rail 210, a Y-axis connecting plate 220, and a Y-axis drive device 230. The Y-axis guide rail 210 and the Y-axis drive device 230 are disposed on the Y-axis connecting plate 220. The Y-axis guide rail 210 is slidably connected to the Z-axis connecting plate 320. The Y-axis drive device 230 is used to push the Y-axis connecting plate 220.

[0032] In this embodiment, the X-axis connecting plate 120, Y-axis connecting plate 220, and Z-axis connecting plate 320 serve as support and fixation, providing an overall frame for each module. The X-axis drive device 130 and Z-axis drive device 330 are cylinders, while the Y-axis drive device 230 is a servo motor. For drive control, the three-station drive system on the same base mainly uses the Y-axis drive device 230 in conjunction with the Y-axis module 200 to complete the three-station synchronous control. Motion accuracy control is achieved by a 23-bit servo encoder with a compensation algorithm, reducing the synchronization error to ±0.03mm. By adopting a three-axis common base approach, the servo system is reduced to less than three sets, significantly lowering maintenance and operation difficulty.

[0033] Working principle: Synchronous control of the X-axis module 100, Y-axis module 200, and Z-axis module 300 in three axial directions enables spatial movement of the floating material handling module 400. The floating material handling plate 420 can float up and down relative to the three-linkage connecting plate 410. The guide pin 440 at the bottom of the floating material handling plate 420 achieves precise positioning. The limit shaft 450 prevents overpressure on the product, and the suction nozzle 430 is used to grip the FPC. The structure and method provided in this embodiment are used for handling FPC products. The three-station drive with the same base has the advantages of simple control logic, convenient adjustment and operation, small space occupation, low cost, and high precision.

[0034] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0035] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

[0036] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A three-linkage conveying mechanism, characterized in that, The three-linkage conveying mechanism includes an X-axis module, a Y-axis module, a Z-axis module, and a floating material handling module; The floating material handling module includes a three-linkage connecting plate, multiple floating material handling plates, and a suction nozzle. The floating material handling plates are floatingly connected to the bottom of the three-linkage connecting plate, and the suction nozzle is disposed at the bottom of the floating material handling plate. The three-linkage connecting plate is connected to the X-axis module to drive the three-linkage connecting plate to move in the X-axis direction. The X-axis module is connected to the Z-axis module to drive the three-linkage connecting plate to move in the Z-axis direction. The Z-axis module is connected to the Y-axis module to drive the three-linkage connecting plate to move in the Y-axis direction.

2. The three-linkage conveying mechanism according to claim 1, characterized in that, The floating material handling module also includes guide pins, which are located at the bottom of the floating material handling plate and are used to engage with the pin holes of the workstation carrier plate.

3. The three-linkage conveying mechanism according to claim 2, characterized in that, The floating material handling module also includes a limiting shaft, which is located at the bottom of the floating material handling plate to prevent the floating material handling plate from over-pressing the product.

4. The three-linkage conveying mechanism according to claim 3, characterized in that, There are three floating material handling plates.

5. The three-linkage conveying mechanism according to claim 1, characterized in that, The X-axis module includes an X-axis guide rail, an X-axis connecting plate, and an X-axis drive device. The X-axis drive device and the X-axis guide rail are mounted on the X-axis connecting plate. The X-axis guide rail is slidably connected to the three-linkage connecting plate. The X-axis drive device is used to push the three-linkage connecting plate.

6. The three-linkage conveying mechanism according to claim 5, characterized in that, The Z-axis module includes a Z-axis guide rail, a Z-axis connecting plate, and a Z-axis drive device. The Z-axis drive device and the Z-axis guide rail are disposed on the Z-axis connecting plate. The Z-axis guide rail is slidably connected to the X-axis connecting plate. The Z-axis drive device is used to push the X-axis connecting plate.

7. The three-linkage conveying mechanism according to claim 6, characterized in that, The Y-axis module includes a Y-axis guide rail, a Y-axis connecting plate, and a Y-axis driving device. The Y-axis guide rail and the Y-axis driving device are mounted on the Y-axis connecting plate. The Y-axis guide rail is slidably connected to the Z-axis connecting plate. The Y-axis driving device is used to push the Y-axis connecting plate.

Images