A vacuum suction type carrying device suitable for irregular products

Abstract

This utility model relates to the technical field of adsorption-type handling devices, and more particularly to a vacuum adsorption-type handling device suitable for irregular products. It includes a moving component, an electric cylinder, a mounting plate, and threaded rods. The moving component is equipped with an electric cylinder at its actuating end. The telescopic rod of the electric cylinder is connected to the mounting plate. The mounting plate has elongated holes on its front and rear sides and left and right sides, and four threaded rods are correspondingly inserted into each of these elongated holes. Through the rotatable connection between the rotating sleeve and the L-shaped connecting tube, and the vertical sliding connection between the suction cups and the rotating sleeve, combined with torsion springs and compression springs, each suction cup can independently deflect its angle and finely adjust its height when contacting the product. This allows for a tight fit to the surface of irregular products with curved surfaces or height differences, effectively preventing leakage due to poor contact and improving the reliability and stability of the adsorption.

Description

Technical Field

[0001] This utility model relates to the technical field of adsorption-type handling devices, and in particular to a vacuum adsorption-type handling device suitable for irregular products. Background Technology

[0002] In industrial production, there is a widespread demand for handling irregular products (such as irregularly shaped parts and non-planar workpieces). These products often have uneven surfaces and asymmetrical shapes, which places high demands on the fit and conformity of the handling device. Currently, most mainstream vacuum adsorption handling devices connect their suction cups to the drive assembly via fixed brackets, and their suction cup angle and height adjustment structures are simple, or even non-adjustable.

[0003] When faced with irregular product surfaces, suction cups with fixed structures cannot adaptively adjust their posture according to the local surface shape of the product: either a gap is formed between the suction cup and the product surface, resulting in negative pressure leakage and insufficient adsorption force, which may lead to the risk of the product falling off; or the suction cup makes hard contact with the product, which may easily cause scratches or pressure damage to the product surface; although some devices add simple elastic components, they can only achieve a small buffer in one direction, and cannot take into account the coordinated adaptation of angular rotation and height sliding, making it difficult to meet the needs of stable and damage-free adsorption and handling of irregular products. Utility Model Content

[0004] To overcome the shortcomings of existing vacuum adsorption handling devices, where the suction cups are mostly fixed or have a single adjustable structure, making it impossible to achieve coordinated adaptation of angle rotation and height sliding according to the surface shape of irregular products, and easily leading to adsorption gaps, product detachment, or surface damage, this utility model provides a vacuum adsorption handling device suitable for irregular products.

[0005] The technical solution is as follows: A vacuum adsorption handling device suitable for irregular products includes a moving component, an electric cylinder, a mounting plate, threaded rods, an L-shaped connecting tube, a rotating sleeve, a suction cup, a torsion spring, a compression spring, and a connector. The moving component is equipped with an electric cylinder at its actuating end. The telescopic rod of the electric cylinder is connected to the mounting plate. The mounting plate has elongated holes on its front and rear sides and left and right sides. Four threaded rods are installed in the corresponding elongated holes. The bottom ends of the four threaded rods are connected to L-shaped connecting tubes. The horizontal ends of the L-shaped connecting tubes are rotatably connected to rotating sleeves. The inner cavities of the rotating sleeves are interconnected with the inner cavities of the L-shaped connecting tubes. Suction cups are slidably connected to the rotating sleeves. The rod sections of the suction cups have symmetrically opened through holes. One end of the through hole is connected to the adsorption cavity of the suction cup, and the other end is connected to the inner cavity of the rotating sleeve. A compression spring is connected between the rod section of the suction cup and the bottom end of the rotating sleeve. A torsion spring is connected between the outer side of the rotating sleeve and the L-shaped connecting tube. A connector is installed on the inner side of the horizontal end of the L-shaped connecting tube.

[0006] Furthermore, the suction cup's adsorption surface is made of a flexible material.

[0007] Furthermore, a deep groove ball bearing is provided at the rotating connection between the rotating sleeve and the L-shaped connecting pipe.

[0008] Furthermore, both the compression spring and the torsion spring are made of stainless steel and have a galvanized coating on their surface.

[0009] Furthermore, the moving component includes a support frame, a slide rail, a sliding frame, a transmission belt assembly, and a drive motor. The support frame serves as the main support of the device. A slide rail is installed on the front top of the support frame, and a sliding frame is slidably connected to the slide rail. A transmission belt assembly is installed on the rear top of the support frame. The transmission belt assembly includes two drive wheels and a closed transmission belt. The two drive wheels are rotatably connected to the two ends of the top of the support frame, and the transmission belt is wrapped around the outside of the two drive wheels. The front section of the transmission belt is fixedly connected to the sliding frame. A drive motor is installed on the left side of the top of the support frame. The output shaft of the drive motor is connected to the left drive wheel in the transmission belt assembly. An electric cylinder is fixedly installed on the sliding frame.

[0010] Furthermore, it also includes sealing rings, with sealing rings embedded at both the upper and lower ends of the rotating sleeve.

[0011] The beneficial effects are: 1. By rotating the sleeve and connecting the L-shaped tube, and vertically sliding the suction cup and rotating sleeve, combined with the torsion spring and compression spring, each suction cup can independently deflect its angle and finely adjust its height when in contact with the product, thereby closely adhering to the surface of irregular products with curved surfaces or height differences, effectively avoiding leakage caused by poor contact, and improving the reliability and stability of adsorption.

[0012] 2. The elongated holes on the mounting plate, which engage with the threaded rod, allow the operator to independently adjust the mounting height of each suction cup assembly. This design enables the device to adapt to different product profiles or working scenarios with different support heights, enhancing the overall versatility and layout flexibility of the equipment and meeting diverse handling needs.

[0013] 3. The moving component adopts a transmission belt assembly precisely controlled by a drive motor, which drives the sliding frame and electric cylinder to move stably in a straight line along the slide rail. Combined with the electric cylinder's precise lifting and lowering drive of the suction cup, it achieves accurate positioning of the product in the horizontal and vertical directions during the picking and placing process, ensuring the accuracy and automation level of the handling operation. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the first three-dimensional structure of this utility model.

[0015] Figure 2 This is a schematic diagram of the second three-dimensional structure of the present invention.

[0016] Figure 3This is a three-dimensional structural diagram of the mounting plate, elongated hole, and threaded rod of this utility model.

[0017] Figure 4 This is a three-dimensional structural diagram of the L-shaped connecting tube, rotating sleeve, and suction cup components of this utility model.

[0018] The components in the attached diagram are labeled as follows: 1: support frame, 2: slide rail, 3: sliding frame, 4: transmission belt assembly, 5: drive motor, 6: electric cylinder, 7: mounting plate, 8: oblong hole, 9: threaded rod, 10: L-shaped connecting pipe, 11: rotating sleeve, 12: suction cup, 13: through hole, 14: sealing ring, 15: torsion spring, 16: compression spring, 17: connector. Detailed Implementation

[0019] Example: A vacuum adsorption conveying device suitable for irregular products, such as Figures 1-4As shown, the assembly includes a moving component, an electric cylinder 6, a mounting plate 7, threaded rods 9, an L-shaped connecting pipe 10, a rotating sleeve 11, a suction cup 12, a sealing ring 14, a torsion spring 15, a compression spring 16, and a connector 17. The moving component is fitted with an electric cylinder 6 at its actuating end. The free end of the telescopic rod of the electric cylinder 6 is fixedly connected to the mounting plate 7. The mounting plate 7 has elongated holes 8 on its front and rear sides and left and right sides. Four threaded rods 9 are inserted into each of the elongated holes 8, and two nuts are screwed onto the upper end of each threaded rod 9. The two nuts abut against the upper and lower surfaces of the mounting plate 7, respectively, to achieve detachable fixing of the threaded rods 9 and the mounting plate 7. The bottom ends of all four threaded rods 9 are fixedly connected to L-shaped connecting pipes. The horizontal ends of both the L-shaped connecting tube 10 and the L-shaped connecting tube 10 are rotatably connected to rotating sleeves 11. The inner cavity of the rotating sleeve 11 communicates with the inner cavity of the L-shaped connecting tube 10, forming an airflow channel. Suction cups 12 are vertically slidably connected to the rotating sleeves 11. The adsorption surface of the suction cups 12 is made of a flexible material, possessing excellent wear resistance, tear resistance, and high resilience. This allows for better filling of microscopic unevenness between the suction cup and the product surface, forming a more effective initial seal and thus establishing a vacuum more quickly. The rod section of the suction cup 12 (located within the inner cavity of the rotating sleeve 11) has symmetrically arranged through holes 13. One end of each through hole 13 communicates with the adsorption cavity of the suction cup 12, and the other end communicates with the inner cavity of the rotating sleeve 11. The cavity is connected, enabling airflow between the suction cup 12's adsorption cavity and the rotating sleeve 11's inner cavity. Sealing rings 14 are embedded at both the upper and lower ends of the rotating sleeve 11. These sealing rings 14 seal the sliding contact between the rotating sleeve 11 and the suction cup 12, preventing air leakage and ensuring the negative pressure stability of the suction cup 12's adsorption cavity. A compression spring 16 connects the rod section of the suction cup 12 to the bottom end of the rotating sleeve 11, and a torsion spring 15 connects the outer side of the rotating sleeve 11 to the L-shaped connecting pipe 10. Both the compression spring 16 and the torsion spring 15 are made of stainless steel with a galvanized layer. The stainless steel material combined with the galvanized layer improves the spring's corrosion resistance and makes it suitable for humid or dusty environments. In industrial environments, to extend the replacement cycle, a deep groove ball bearing is provided at the rotating connection between the rotating sleeve 11 and the L-shaped connecting tube 10, which can reduce the coefficient of rotational friction, making the angle adjustment of the suction cup 12 more sensitive, and at the same time reducing component wear. A connector 17 is installed on the inner side of the horizontal end of the L-shaped connecting tube 10. One end of the connector 17 is connected to the inner cavity of the L-shaped connecting tube 10, and the other end is used to connect to the solenoid valve through a hose. The other interface of the solenoid valve is connected to the airflow port of the air pump, forming a vacuum adsorption / depressurization air circuit system. By loosening the nut and adjusting the position of the threaded rod 9 vertically along the elongated hole 8, and then tightening the nut to fix it, the overall height of the suction cup 12 can be adjusted to adapt to irregular products of different heights.

[0020] like Figure 1As shown, the moving assembly includes a support frame 1, a slide rail 2, a sliding frame 3, a transmission belt assembly 4, and a drive motor 5. The support frame 1 serves as the main support of the device. The slide rail 2 is bolted to the front top of the support frame 1, and the sliding frame 3 is slidably connected to the slide rail 2. The transmission belt assembly 4 is installed on the rear top of the support frame 1. The transmission belt assembly 4 includes two transmission wheels and a closed transmission belt. The two transmission wheels are rotatably connected to the left and right ends of the top of the support frame 1, respectively. The transmission belt is wrapped around the outside of the two transmission wheels, and the front section of the transmission belt is fixedly connected to the sliding frame 3. The drive motor 5 is bolted to the left top of the support frame 1. The output shaft of the drive motor 5 is connected to the left transmission wheel in the transmission belt assembly 4, which can drive the transmission wheel to drive the transmission belt to rotate in both directions, thereby realizing the reciprocating movement of the sliding frame 3 along the slide rail 2. The electric cylinder 6 is fixedly installed on the sliding frame 3 by bolts.

[0021] When using this device to adsorb and transport irregular products, first complete the air circuit connection. Connect one end of the hose to connector 17, and the other end of the hose to the first interface of the solenoid valve. Connect the second interface of the solenoid valve to the airflow port of the air pump. By controlling the on / off state of the solenoid valve, the air pump can evacuate (create negative pressure) or de-air (restore normal pressure) the air circuit system. After the preparation is complete, start the drive motor 5. The output shaft of the drive motor 5 drives the left transmission wheel to rotate. The left transmission wheel drives the right transmission wheel to rotate synchronously through the transmission belt. When the transmission belt rotates, it drives the sliding frame 3 to move along the slide rail 2. By controlling the forward or reverse rotation of the output shaft of the drive motor 5, the sliding frame 3 can be moved left and right, thereby driving the electric cylinder 6, mounting plate 7, threaded rod 9, L-shaped connecting pipe 10, and rotating sleeve 1 on the sliding frame 3. 1. The suction cup 12 moves synchronously. When the suction end of the suction cup 12 is initially aligned with the surface of the irregular product to be transported, the drive motor 5 is turned off and the electric cylinder 6 is started. The telescopic rod of the electric cylinder 6 extends vertically, driving the mounting plate 7, threaded rod 9, L-shaped connecting tube 10, rotating sleeve 11 and suction cup 12 to move downward synchronously until the suction end of the suction cup 12 contacts the surface of the product to be adsorbed. For the irregular shape of the surface to be adsorbed, the rotating sleeve 11 can rotate around the vertical axis of the L-shaped connecting tube 10 (driving the elastic deformation of the torsion spring 15), and the suction cup 12 can slide vertically along the inner wall of the rotating sleeve 11 (driving the elastic deformation of the compression spring 16). Through the elastic restoring force of the torsion spring 15 and the compression spring 16, it is ensured that the suction ends of each suction cup 12 are tightly attached to the surface of the product to be adsorbed without gaps.

[0022] Subsequently, the air pump is started and switched to the suction mode by the solenoid valve. The air pump draws air from the inner cavity of the L-shaped connecting pipe 10 through the hose and connector 17, creating a negative pressure in the inner cavity of the L-shaped connecting pipe 10. The air between the product surface to be adsorbed and the adsorption end of the suction cup 12 is sequentially drawn into the air pump and discharged through the through hole 13, the inner cavity of the rotating sleeve 11, the inner cavity of the L-shaped connecting pipe 10, the connector 17, and the hose. The adsorption cavity of the suction cup 12 maintains a negative pressure state, and the atmospheric pressure is used to achieve stable adsorption of irregular products. After adsorption is completed, the telescopic rod of the control cylinder 6 is retracted in the vertical direction, which drives the suction cup 12 and the adsorbed product to be lifted up to the preset height. The drive motor 5 is started again, and the sliding frame 3 and the suction cup 12 with the adsorbed product are moved to the target placement position through the transmission belt assembly 4. The drive motor 5 is then turned off.

[0023] When releasing the product, the air pump is switched to venting mode (or directly connected to the atmosphere) by the solenoid valve. External atmospheric air enters the suction chamber of the suction cup 12 through the hose, connector 17, inner cavity of L-shaped connecting pipe 10, inner cavity of rotating sleeve 11, and through hole 13 in sequence, so that the air pressure in the suction chamber returns to normal pressure. The suction force of the suction cup 12 on the product disappears, and the product falls to the target position under its own gravity, completing the release. The torsion spring 15 will rebound and reset, driving the rotating sleeve 11 and suction cup 12 to reverse and reset. The suction cup 12 returns to the vertical position. At the same time, the compression spring 16 rebounds and resets, driving the suction cup 12 to move downward and reset.

Claims

1. A vacuum adsorption conveying device suitable for irregular products, characterized in that, The assembly includes a moving component, an electric cylinder (6), a mounting plate (7), threaded rods (9), an L-shaped connecting pipe (10), a rotating sleeve (11), a suction cup (12), a torsion spring (15), a compression spring (16), and a connector (17). The moving component is equipped with an electric cylinder (6) at its actuating end. The telescopic rod of the electric cylinder (6) is connected to the mounting plate (7). The mounting plate (7) has elongated holes (8) on its front and rear sides and left and right sides. Four threaded rods (9) are installed in the elongated holes (8) one by one. The bottom ends of the four threaded rods (9) are all connected to L-shaped connecting pipes (10). The horizontal ends of the L-shaped connecting pipes (10) are rotatably connected to a rotating sleeve. The rotating sleeve (11) has its inner cavity connected to the inner cavity of the L-shaped connecting tube (10). The rotating sleeve (11) is slidably connected to a suction cup (12). The rod section of the suction cup (12) is symmetrically provided with through holes (13). One end of the through hole (13) is connected to the suction cavity of the suction cup (12), and the other end is connected to the inner cavity of the rotating sleeve (11). A compression spring (16) is connected between the rod section of the suction cup (12) and the bottom end of the rotating sleeve (11). A torsion spring (15) is connected between the outer side of the rotating sleeve (11) and the L-shaped connecting tube (10). A connector (17) is assembled on the inner side of the horizontal end of the L-shaped connecting tube (10).

2. A vacuum adsorption conveying device suitable for irregular products according to claim 1, characterized in that, The suction surface of the suction cup (12) is made of a flexible material.

3. A vacuum adsorption conveying device suitable for irregular products according to claim 2, characterized in that, A deep groove ball bearing is provided at the rotating connection between the rotating sleeve (11) and the L-shaped connecting pipe (10).

4. A vacuum adsorption conveying device suitable for irregular products according to claim 3, characterized in that, Both the compression spring (16) and the torsion spring (15) are made of stainless steel and have a zinc-plated layer on their surface.

5. A vacuum adsorption conveying device suitable for irregular products according to claim 4, characterized in that, The moving components include a support frame (1), a slide rail (2), a sliding frame (3), a transmission belt assembly (4), and a drive motor (5). The support frame (1) serves as the main support of the device. A slide rail (2) is installed on the front top of the support frame (1). A sliding frame (3) is slidably connected to the slide rail (2). A transmission belt assembly (4) is installed on the rear top of the support frame (1). The transmission belt assembly (4) includes two transmission wheels and a closed transmission belt. The two transmission wheels are rotatably connected to the two ends of the top of the support frame (1). The transmission belt is wrapped around the outside of the two transmission wheels. The front section of the transmission belt is fixedly connected to the sliding frame (3). A drive motor (5) is installed on the left side of the top of the support frame (1). The output shaft of the drive motor (5) is connected to the transmission wheel on the left side of the transmission belt assembly (4). An electric cylinder (6) is fixedly installed on the sliding frame (3).

6. A vacuum adsorption conveying device suitable for irregular products according to claim 5, characterized in that, It also includes a sealing ring (14), and the upper and lower ends of the rotating sleeve (11) are both embedded with the sealing ring (14).

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