Four-side center alignment clamping mechanism replacing vacuum suction product

Abstract

The utility model relates to the technical field of material taking and clamping, in particular to a four-side center alignment clamping mechanism for replacing a vacuum suction product, which comprises a clamping jaw cylinder, two movable convex plates are arranged at the driving end of the clamping jaw cylinder, and long clamping plates for clamping in the length direction are arranged at the bottoms of the movable convex plates. A mounting frame is arranged at the bottom of the clamping jaw air cylinder, two movable frames are arranged at the bottom of the mounting frame, guide cams are arranged at the tops of the movable frames, a tension spring is arranged between the two movable frames, and short clamping plates used for clamping in the short direction are arranged at the bottoms of the two movable frames. According to the four-edge center alignment clamping mechanism replacing vacuum product suction, the air cylinder drives the movable protruding plate to be matched with the guide cam to enable the long clamping plate and the short clamping plate to conduct four-edge center alignment clamping on a product, product positioning is achieved while the product is clamped, the suction mode is effectively replaced, a secondary positioning mechanism can be omitted, and the equipment cost is reduced.

Description

Technical Field

[0001] This utility model relates to the field of material handling and clamping technology, specifically a four-sided center alignment clamping mechanism that can replace vacuum suction products. Background Technology

[0002] In mobile phone manufacturing, the mobile phone frame is a key structural component of smartphones, located between the front panel and the back cover. It carries various internal components such as the battery, motherboard, camera, flex cable, various sensors, microphone, earpiece, etc. Therefore, the mobile phone frame needs to be repeatedly grasped and assembled by multiple robotic gripping mechanisms.

[0003] Currently, traditional robots use a combination of suction cups and pneumatic grippers to grasp the mid-frame of mobile phones at different angles. Both of these gripping mechanisms rely on pneumatics to complete automated actions. However, since the cutout positions of the mid-frame vary among different mobile phones, existing mechanisms require adjustments to the suction cup position each time a different product is produced. This adjustment is very troublesome. Moreover, even in areas without cutouts, there are many small through holes. When the suction cup tries to pick up the product at these positions, it may break the vacuum (failing to reach the specified negative pressure) and fail to hold the product. Due to the variety of products, the position of the suction nozzle needs to be adjusted for each product, and it is very difficult to find the correct position. Therefore, the robots suffer from high failure rates, poor stability, low productivity, and low product gripping compatibility. Furthermore, the vacuum negative pressure gripping consumes a large amount of compressed air, resulting in energy waste. In addition, simply picking up the product cannot guarantee its positioning, so an external secondary positioning mechanism is required to complete the next process after positioning, which increases the equipment cost. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a four-sided center alignment clamping mechanism to replace vacuum suction products, thus solving the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a four-sided center alignment clamping mechanism to replace vacuum suction products, comprising a gripper cylinder, wherein the driving end of the gripper cylinder is provided with two movable protrusions, the bottom of the movable protrusions is provided with a long clamping plate for long-direction clamping, the bottom of the gripper cylinder is provided with a mounting frame, the bottom of the mounting frame is provided with two movable frames, the top of the movable frames is provided with a guide cam, a tension spring is provided between the two movable frames, and the bottom of each of the two movable frames is provided with a short clamping plate for short-direction clamping.

[0006] Optionally, a sensor frame is provided on the top of the gripper cylinder, and sensors are provided on the surface of the sensor frame.

[0007] Optionally, a slide rail and a slider are provided between the mounting bracket and the movable bracket.

[0008] Optionally, limit blocks are provided at both ends of the movable frame near the slide rail.

[0009] Optionally, fixed posts are provided on the opposite sides of the two movable frames, and the two ends of the tension spring are connected to the two movable frames through the fixed posts.

[0010] Optionally, a magnetic switch is provided on one side of the gripper cylinder.

[0011] This utility model provides a four-sided center alignment clamping mechanism to replace vacuum suction products, which has the following advantages:

[0012] 1. This four-sided center alignment clamping mechanism, which replaces vacuum suction products, uses a cylinder to drive a moving cam to work with a guide cam to clamp the product with the center alignment of the long and short clamping plates. It achieves product positioning while clamping, effectively replacing the suction method, reducing air and energy consumption. It also avoids the drawbacks of suction methods, such as the need for constant nozzle position adjustments due to the variety of products, poor stability, low production capacity, and limited product suction compatibility. Furthermore, the four-sided center alignment clamping method eliminates the need for a secondary positioning mechanism, freeing up space for other mechanisms, reducing equipment costs, shortening production cycle time, and increasing equipment capacity.

[0013] 2. The four-sided center alignment gripping mechanism of this alternative vacuum suction product uses a tension spring to physically reset the short clamping plate on the movable frame, so that only one cylinder is needed to link the four claws to open and close simultaneously. The structure is small, compact and simple, reducing the failure rate. Multiple mechanisms can be combined to suit multi-station applications, improve the structure's gripping efficiency, and effectively increase production capacity. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model;

[0015] Figure 2 This utility model Figure 1 Enlarged structural diagram at point A in the middle;

[0016] Figure 3 This is a schematic diagram of the exploded structure of this utility model.

[0017] In the diagram: 1. Gripper cylinder; 2. Moving convex plate; 3. Long clamping plate; 4. Mounting bracket; 5. Movable bracket; 6. Sensor; 7. Guide cam; 8. Tension spring; 9. Short clamping plate; 10. Sensor bracket; 11. Fixed column; 12. Slide rail; 13. Slider; 14. Limit block; 15. Magnetic switch. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0019] Please see Figures 1 to 3 This utility model provides a technical solution: a four-sided center alignment clamping mechanism to replace vacuum suction products, including a gripper cylinder 1, a magnetic switch 15 is provided on one side of the gripper cylinder 1, a sensor frame 10 is provided on the top of the gripper cylinder 1, and a sensor 6 is provided on the surface of the sensor frame 10. The sensor 6 can be a sensing optical fiber. The sensor 6 is used to sense the picking and placing, and to notify the magnetic switch 15 to control the gripper cylinder 1 to open and close automatically.

[0020] The driving end of the gripper cylinder 1 is provided with two movable protrusions 2. The bottom of the movable protrusions 2 is provided with a long clamping plate 3 for long-direction clamping. The bottom of the gripper cylinder 1 is provided with a mounting frame 4. The bottom of the mounting frame 4 is provided with two movable frames 5. A slide rail 12 and a slider 13 are provided between the mounting frame 4 and the movable frames 5. The slide rail 12 is located at the bottom of the mounting frame 4, and the slider 13 is located at the top of the movable frame 5. The slide rail 12 and the slider 13 are configured to ensure the stability of the movable frame 5 during translation. Limit blocks 14 are provided on both ends of the movable frame 5 near the slide rail 12. The limit blocks 14 are configured to block both ends of the slide rail 12 and prevent the slider 13 from sliding out of the slide rail 12.

[0021] The top of the movable frame 5 is provided with guide cams 7. There are four guide cams 7. Every two guide cams 7 are distributed on both sides of a movable convex plate 2. When the gripper cylinder 1 drives the movable convex plate 2 to move outward, it will push against the guide cams 7 and open to the side, thereby driving the two short clamping plates 9 in the short direction to unfold.

[0022] A tension spring 8 is installed between the movable frames 5, and a fixed column 11 is installed on the opposite side of the two movable frames 5 respectively. The two ends of the tension spring 8 are connected to the two movable frames 5 through the fixed column 11. The bottom of each movable frame 5 is provided with a short clamping plate 9 for short-direction clamping. When the mechanism reaches the product, the gripper cylinder 1 retracts, driving the long clamping plate 3 to retract inward. At the same time, the tension spring 8 pulls the movable frame 5 and the short clamping plate 9 to retract, clamping the product with four-sided center alignment. While clamping the product, the product is positioned, effectively replacing the suction method, reducing air consumption and energy consumption. At the same time, it avoids the situation where suction requires constant adjustment of the suction nozzle position due to the variety of products, and effectively avoids the situation where the vacuum is broken (unable to reach the specified negative pressure) due to the hollow surface or small through hole of the product, which prevents the product from being sucked up. It also solves the shortcomings of poor stability, low production capacity and low product suction compatibility. Moreover, the four-sided center alignment clamping method can eliminate the secondary positioning mechanism, saving extra space for the layout of other mechanisms, reducing equipment costs, reducing equipment production cycle, and increasing equipment capacity.

[0023] In this invention, the working steps of the device are as follows:

[0024] Install the mechanism on the moving end of the robot. When picking up materials, the robot moves the mechanism to the blister box where the product is stored and notifies the magnetic switch 15 to start the gripper cylinder 1. The gripper cylinder 1 drives the moving convex plate 2 to move the long clamping plate 3 outward. At the same time, it will push against the guide cams 7 on both sides to open to the side, that is, drive the two short clamping plates 9 in the short direction to unfold and cover the product.

[0025] Then, the gripper cylinder 1 retracts, causing the long clamping plate 3 to retract inward. At the same time, the tension spring 8 pulls the movable frame 5 to retract the short clamping plate 9, clamping the product at the center of all four sides, and then releasing the product to continue clamping the next product.

[0026] The above description is only a preferred 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 technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A four-side center alignment gripper mechanism for replacing vacuum suction products, characterized by: The utility model provides a long and short direction clamping device, including the jaw cylinder (1), the driving end of jaw cylinder (1) is provided with two mobile tabs (2), the bottom of mobile tab (2) is provided with long clamping plate (3) for long direction clamping, the bottom of jaw cylinder (1) is provided with mounting bracket (4), the bottom of mounting bracket (4) is provided with two movable frame (5), the top of movable frame (5) is provided with guide cam (7), be provided with tension spring (8) between two movable frame (5), the bottom of two movable frame (5) is provided with short clamping plate (9) for short direction clamping.

2. A four-side center alignment gripper mechanism for replacing a vacuum suction product according to claim 1, characterized in that: The top of the jaw cylinder (1) is provided with an inductor rack (10), and the surface of the inductor rack (10) is provided with an inductor (6).

3. The four-side center alignment gripper mechanism for replacing the vacuum suction product according to claim 1, characterized in that: A slide rail (12) and a slide block (13) are arranged between the mounting bracket (4) and the movable frame (5).

4. The four-side center alignment gripper mechanism for replacing the vacuum suction product according to claim 3, characterized in that: Limiting blocks (14) are arranged on both ends of the movable frame (5) close to the slide rail (12).

5. The four-side center alignment gripper mechanism for replacing the vacuum suction product according to claim 1, characterized in that: Opposite surfaces of the two movable frames (5) are respectively provided with fixed columns (11), and both ends of the tension spring (8) are connected to the two movable frames (5) through the fixed columns (11).

6. The four-side center alignment gripper mechanism for replacing the vacuum suction product according to claim 1, characterized in that: A magnetic switch (15) is arranged on one side of the jaw cylinder (1).

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