A lens element transfer arm for finished product assembly

Abstract

This utility model discloses a lens element transfer arm for finished product assembly, belonging to the field of lens element assembly technology. It includes a mounting frame with a sliding plate slidably mounted on the inner side of the frame along its length. One end of the mounting frame is fixedly connected to a cylinder that drives the sliding plate. This utility model replaces the traditional dual-cylinder control mode with a linkage design of mechanical structures such as gears, racks, slots, and pins. Utilizing the rigid connection characteristics of mechanical transmission, it effectively eliminates synchronization deviations caused by cylinder piston wear, air pressure fluctuations, and differences in air pipe length. This makes the chuck's movements more precise during horizontal translation and vertical extension, reducing offset, vibration, and component position deviations, ensuring consistency between inspection and assembly. Simultaneously, the mechanical transmission components are wear-resistant and less affected by the environment, reducing downtime for maintenance due to component wear, extending equipment lifespan, and improving overall operational stability.

Description

Technical Field

[0001] This utility model relates to a transmission arm, and more particularly to a lens element transmission arm for finished product assembly, belonging to the field of lens element assembly technology. Background Technology

[0002] In the field of automated lens component processing, the transfer arm, as a key piece of equipment connecting the conveyor line, inspection table, and turntable assembly station, directly affects the processing quality and production efficiency of the components. Currently, the mainstream transfer arm adopts a dual-station design, using the coordinated action of horizontal and vertical cylinders to achieve the gripping and transfer of components. The horizontal cylinder drives the chuck to move along a straight trajectory above the component, and then the vertical cylinder controls the chuck to press down to complete the gripping action. After passing the inspection, the component is transferred to the turntable through the same action. However, this dual-cylinder coordinated control technology has significant drawbacks:

[0003] First, the synchronization of the dual cylinders is difficult to guarantee. Due to factors such as the wear of the cylinder pistons, air pressure fluctuations, and differences in air pipe length, the coordination accuracy of horizontal and vertical movements will gradually decrease, causing the chuck to deviate or vibrate during translation. Especially during high-speed reciprocating motion, components are prone to positional deviations due to inertial forces, affecting the consistency of inspection and assembly. Second, the control logic of the dual cylinders is complex, requiring multiple sets of solenoid valves and limit switches to achieve sequential actions. This not only increases the system cost but also causes lag in action due to air pressure response delay, reducing production cycle efficiency.

[0004] To address this issue, a lens element transfer arm for finished product assembly was designed. Utility Model Content

[0005] The main objective of this invention is to provide a lens element transmission arm for finished product assembly, in order to solve the problems mentioned in the background art.

[0006] The objective of this utility model can be achieved by adopting the following technical solution:

[0007] A lens element transfer arm for finished product assembly includes a mounting frame, a slide plate that is slidably disposed on the inner side of the mounting frame along the length direction, a cylinder that drives the slide plate to move is mounted on one end of the mounting frame, and the output shaft of the cylinder is fixedly connected to the slide plate.

[0008] A gear is rotatably installed in the middle of the inner side of the slide plate. A rack that meshes with the gear is provided on the top of the mounting bracket along the length direction. A crossbar is vertically slidably installed on the inner side of the slide plate. A strip groove is opened in the middle of the crossbar along the length direction. A pin is vertically installed on the side of the gear and passes through the inside of the strip groove.

[0009] Both ends of the bottom of the crossbar are vertically fixed with vertical rods, and the bottom of each vertical rod is equipped with a clamp. The distance between the two sets of clamps is the same as the circumference of the gear.

[0010] Preferably, the mounting bracket has a fixing plate at the bottom near the cylinder end, and the fixing plate has mounting holes.

[0011] Preferably, the inner side of the mounting bracket is provided with a groove along the length direction, a slider is slidably arranged inside the groove, and the outer side of the slide plate is fixedly connected to the slider.

[0012] Preferably, the skateboard is L-shaped, and the bottom surface of the skateboard has sliding holes that cooperate with the vertical bar.

[0013] Preferably, the pin is cylindrical in shape and is rotatably connected to the gear.

[0014] Preferably, the gear is rotatably connected to the slide plate via a bearing, and the gear and rack are kept in a meshing state.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] 1. This utility model replaces the traditional dual-cylinder control mode with a linkage design of mechanical structures such as gears, racks, slots, and pins. By utilizing the rigid connection characteristics of mechanical transmission, it effectively eliminates synchronization deviations caused by cylinder piston wear, air pressure fluctuations, and differences in air pipe length. This makes the chuck's movements more precise during horizontal translation and vertical extension and retraction, reducing offset, vibration, and component position deviations, and ensuring consistency in testing and assembly. At the same time, the mechanical transmission components are wear-resistant and less affected by the environment, reducing downtime for maintenance due to component wear, extending the service life of the equipment, and improving overall operational stability.

[0017] 2. This utility model eliminates the complex control logic of traditional dual-cylinder systems that rely on multiple sets of solenoid valves and limit switches. Instead, it completes the chuck action with a single cylinder in conjunction with mechanical linkage. This simplifies the control program, reduces the use of control components, lowers hardware costs and reduces debugging and maintenance difficulty. Furthermore, the mechanical transmission response is rapid, avoiding the lag in pneumatic control. Combined with the dual-station design, it shortens component transfer time, increases production cycle time, and further improves the operating efficiency of automated production lines. Attached Figure Description

[0018] Figure 1 This is a diagram showing the initial clamping state of the components of this utility model;

[0019] Figure 2 This is a diagram illustrating the upward transition state of this utility model;

[0020] Figure 3 This is a diagram showing the placement and replacement of the components of this utility model.

[0021] Figure 4 This is a structural diagram of the mounting bracket of this utility model.

[0022] In the diagram: 1. Mounting bracket; 2. Slide plate; 3. Cylinder; 4. Gear; 5. Rack; 6. Crossbar; 7. Slot; 8. Pin; 9. Vertical rod; 10. Clamp; 11. Slide groove; 12. Slider. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model.

[0024] Therefore, the following detailed description of the embodiments of this utility model is not intended to limit the scope of the claimed utility model, but merely to illustrate some embodiments of the utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without inventive effort are within the scope of protection of this utility model.

[0025] It should be noted that, unless otherwise specified, the embodiments and features and technical solutions in the present invention can be combined with each other.

[0026] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0027] In the description of this utility model, it should be noted that the terms "upper," "lower," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product is in use, or the orientation or positional relationship commonly understood by those skilled in the art. These terms are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on this utility model. In addition, the terms "first," "second," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0028] Example 1

[0029] like Figure 1 , Figure 2 , Figure 3 and Figure 4As shown, this embodiment proposes a lens element transfer arm for finished product assembly, including a mounting frame 1, a slide plate 2 slidably disposed on the inner side of the mounting frame 1 along the length direction, a cylinder 3 for driving the slide plate 2 to move is mounted on one end of the mounting frame 1, and the output shaft of the cylinder 3 is fixedly connected to the slide plate 2.

[0030] A gear 4 is rotatably mounted at the middle position of the inner side of the slide plate 2. A rack 5 that meshes with the gear 4 is provided on the top of the mounting bracket 1 along the length direction. A crossbar 6 is vertically slidably mounted on the inner side of the slide plate 2. A strip groove 7 is opened in the middle of the crossbar 6 along the length direction. A pin 8 is vertically mounted on the side of the gear 4 and passes through the inside of the strip groove 7.

[0031] Both ends of the bottom of the crossbar 6 are vertically fixed with vertical bars 9, and each of the bottom ends of the vertical bars 9 is equipped with a chuck 10. The distance between the two sets of chucks 10 is the same as the circumference of the gear 4.

[0032] The chuck 10 uses a two-finger mechanical gripper with a PTFE gripper head and a 0.5mm deep arc-shaped groove on the surface (suitable for lens elements with a diameter of 5-15mm). The gripping force can be adjusted by adjusting the preload of the built-in spring (range 5-20N) to avoid damaging the components. It is pneumatically driven and the opening and closing of the gripper fingers is controlled by a built-in micro cylinder (model CDU6-10). The end of the gripper fingers of the chuck 10 is equipped with a micro photoelectric sensor (model E3Z-D61) to detect whether the component is in place.

[0033] The core of the transmission arm is to achieve the coordinated horizontal movement and vertical action of the chuck 10 through a single cylinder drive and mechanical linkage. In the initial state, the cylinder 3 is in the retracted state, the slide plate 2 is located at the end of the mounting frame 1 near the cylinder 3, and the crossbar 6 is in the low position. The two sets of chucks 10 below can contact the lens components to be gripped, including components that have not been inspected on the conveyor line and components that have been inspected on the inspection table.

[0034] When cylinder 3 extends, it pushes slide plate 2 to slide along the length of mounting bracket 1. During the movement of slide plate 2, gear 4, which is rotated on its inner side, keeps meshing with rack 5 on top of mounting bracket 1. Therefore, gear 4 rotates while slide plate 2 moves. When gear 4 rotates, pin 8, which is vertically mounted on its side, makes a circular motion in sync. Pin 8 passes through the strip groove 7 in the middle of crossbar 6. Therefore, the circular motion of pin 8 is converted into the vertical sliding of crossbar 6 through strip groove 7.

[0035] When the pin 8 rotates to the bottom of the gear 4, the crossbar 6 is pushed downward, causing the vertical bar 9 and the chuck 10 to descend and grab the component. When the pin 8 rotates to the top of the gear 4, the crossbar 6 is pulled upward, causing the chuck 10 to rise and disengage from the component placement position.

[0036] Since the distance between the two sets of chucks 10 is the same as the circumference of the gear 4, when the gear 4 rotates one revolution (that is, when the sliding plate 2 moves a distance equal to the circumference of the gear 4), the two sets of chucks 10 complete one position alternation, realizing a continuous action of "grabbing-transferring-placing", and the lifting and translation of the chucks 10 can be completed without the need for an additional vertical cylinder.

[0037] Example 2

[0038] The solution in Example 1 will be further described below with reference to its specific working method.

[0039] like Figure 1 , Figure 2 and Figure 3 As shown, in a preferred embodiment, based on the above method, the mounting bracket 1 is further provided with a fixing plate at the bottom near the cylinder 3, and the fixing plate is provided with mounting holes. The mounting bracket 1 is provided with a fixing plate with mounting holes at the bottom near the cylinder 3, and the entire transmission arm can be fixed to the equipment frame by bolts to avoid the whole shaking during operation.

[0040] like Figure 4 As shown, in a preferred embodiment, based on the above method, a groove 11 is further provided on the inner side of the mounting frame 1 along the length direction. A slider 12 is slidably arranged inside the groove 11. The outer side of the slide plate 2 is fixedly connected to the slider 12. The groove 11 on the inner side of the mounting frame 1 cooperates with the slider 12 on the outer side of the slide plate 2 to restrict the sliding trajectory of the slide plate 2, ensure that it moves smoothly along the length direction of the mounting frame 1, and reduce the horizontal deviation.

[0041] like Figure 1 , Figure 2 and Figure 3 As shown, in a preferred embodiment, based on the above method, the slide plate 2 is further L-shaped, and a sliding hole that cooperates with the vertical rod 9 is provided on the bottom surface of the slide plate 2. The L-shaped slide plate 2 provides an inner support surface for the vertical sliding of the crossbar 6. The sliding hole on its bottom surface cooperates with the vertical rod 9 to further restrict the movement trajectory of the vertical rod 9 and prevent the clamp 10 from swinging laterally during the lifting process.

[0042] like Figure 1 , Figure 2 and Figure 3 As shown, in a preferred embodiment, based on the above method, the pin 8 is further cylindrical in shape and is rotatably connected to the gear 4. The rotatable connection between the cylindrical pin 8 and the gear 4 can reduce the friction when the pin 8 slides in the slot 7 and reduce component wear.

[0043] like Figure 1 , Figure 2 and Figure 3As shown, in a preferred embodiment, based on the above method, the gear 4 is further rotatably connected to the slide plate 2 through a bearing, and the gear 4 and the rack 5 are kept in a meshing state. The gear 4 is connected to the slide plate 2 through the bearing to ensure that the gear 4 rotates smoothly and the meshing state with the rack 5 is stable, ensuring that the rotation angle of the gear 4 corresponds precisely to the moving distance of the slide plate 2, thereby ensuring the matching accuracy of the lifting and translating actions of the chuck 10.

[0044] Example 3

[0045] The solutions in Embodiments 1 and 2 will be further described below with reference to their specific working methods.

[0046] Grabbing stage: Cylinder 3 retracts, slide plate 2 returns to its initial position, gear 4 rotates to make pin 8 drive crossbar 6 to descend, and the two clamps 10 can respectively grab the conveyor belt and the components to be transferred on the inspection table;

[0047] Transfer stage: Cylinder 3 extends, pushing slide plate 2 to move to the other end of mounting bracket 1. Gear 4 moves and rotates with slide plate 2. Pulley 8 drives crossbar 6 to rise, causing gripper 10 to disengage from initial position, thus preventing friction between component and placement surface during transfer.

[0048] Placement stage: When the sliding plate 2 moves a distance equal to the circumference of the gear 4, the gear 4 rotates one revolution, and the pin 8 drives the crossbar 6 to descend. At this time, the component picked up from the conveyor belt moves to the inspection table to replace the previous component in order to inspect the component. Meanwhile, the component on the previous inspection table is transferred to the turntable for rotation assembly.

[0049] Reset phase: Cylinder 3 retracts, slide plate 2 moves in the opposite direction, gear 4 rotates in the opposite direction, pin 8 drives crossbar 6 to reset, and both sets of clamps 10 return to their initial state, ready for the next cycle.

[0050] By using a single cylinder 3 to drive the mechanical linkage of gear 4, rack 5, pinion 8, and slot 7, the traditional dual-cylinder control is replaced, eliminating the synchronization deviation caused by air pressure fluctuations and improving the consistency of the chuck 10's movement and the efficiency of the production line.

[0051] The above description is only a further embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the scope disclosed by the present utility model, based on the technical solution and concept of the present utility model, shall fall within the protection scope of the present utility model.

Claims

1. A lens element transfer arm for finished product assembly, comprising a mounting bracket (1), characterized in that: A slide plate (2) is slidably provided on the inner side of the mounting bracket (1) along the length direction. A cylinder (3) for driving the slide plate (2) to move is installed at one end of the mounting bracket (1), and the output shaft of the cylinder (3) is fixedly connected to the slide plate (2). A gear (4) is rotatably mounted at the middle position of the inner side of the slide plate (2). A rack (5) that meshes with the gear (4) is provided on the top of the mounting bracket (1) along the length direction. A crossbar (6) is vertically slidably mounted on the inner side of the slide plate (2). A strip groove (7) is opened in the middle of the crossbar (6) along the length direction. A pin (8) is vertically mounted on the side of the gear (4), and the pin (8) passes through the inside of the strip groove (7). Both ends of the bottom of the crossbar (6) are vertically fixed with vertical rods (9), and the bottom ends of the vertical rods (9) are all equipped with clamps (10). The distance between the two sets of clamps (10) is the same as the circumference of the gear (4).

2. The lens element transfer arm for finished product assembly according to claim 1, characterized in that: The mounting bracket (1) has a fixing plate at the bottom near the cylinder (3), and the fixing plate has mounting holes.

3. The lens element transfer arm for finished product assembly according to claim 1, characterized in that: The mounting bracket (1) has a groove (11) along its length on the inner side. A slider (12) is slidably arranged inside the groove (11). The outer side of the slide plate (2) is fixedly connected to the slider (12).

4. A lens element transfer arm for finished product assembly according to claim 1, characterized in that: The skateboard (2) is L-shaped, and the bottom surface of the skateboard (2) has sliding holes that cooperate with the vertical rod (9).

5. A lens element transfer arm for finished product assembly according to claim 1, characterized in that: The pin (8) is cylindrical in shape and is rotatably connected to the gear (4).

6. A lens element transfer arm for finished product assembly according to claim 1, characterized in that: The gear (4) is rotatably connected to the slide plate (2) through a bearing, and the gear (4) and the rack (5) are kept in mesh.

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