A device for gripping an article in an automated production line

Abstract

The utility model relates to automatic equipment technical field, and disclose a kind of device for clamping of automatic production line, including guide rail, the center of guide rail is rotatably connected with bidirectional screw rod, the both ends of guide rail are slidably connected with sliding block, and the bidirectional screw rod is screwed in the center of sliding block, the both sides of sliding block are fixedly installed with support plate, the bottom of support plate is fixedly installed with bottom plate, the bottom side of bottom plate is fixedly installed with connecting plate, the bottom of connecting plate is provided with the clamping assembly for clamping workpiece;By starting two-shaft air cylinder, the righting rod on both sides can be driven to relatively close, the product can be arranged, the bidirectional screw rod is driven to rotate in the inside of sliding block, the sliding block on both sides can be driven to relatively close, and the clamping plate on both sides can be driven to relatively close, so the plate can be clamped on the both sides of workpiece, and the suction cup can be tightly attached to the smooth surface of workpiece for adsorption positioning, so as to improve the stability of clamping.

Description

Technical Field

[0001] This utility model relates to the field of automation equipment technology, specifically to a clamping device for an automated production line. Background Technology

[0002] An automated production line is a production system composed of automated machine systems, conveying systems, and control systems. It can automatically complete processes such as processing, assembly, and testing, and realize continuous and efficient production of products. The workpiece is automatically transferred from one machine tool to another, and the machine tools automatically perform processing, loading and unloading, and inspection.

[0003] As disclosed in Chinese Patent Publication No. CN209349947U, a gripping device in an automated production line includes two fixed plates. Drive rollers are fixed to both ends of the two fixed plates, and a drive belt is externally connected to the drive rollers. A storage box is bolted to one side of the outer wall of one of the fixed plates. Three equally spaced partitions are bolted to the bottom inner wall of the storage box. Four equally spaced guide plates are fixed to one side of the outer wall of the storage box. Four equally spaced support columns are bolted to one side of the outer wall of the other fixed plate. This invention effectively places products from the automated production line into the storage box after gripping, preventing clutter and improving the device's storage performance. It can also detect products as they approach the gripping claws and move them, reducing the hassle of manual sorting and gripping.

[0004] In the process of realizing this application, the inventors discovered that the technology has at least the following problems: Although the above technical solution can prevent the messy accumulation of products and reduce the trouble of manual sorting and clamping, the above solution has certain limitations on the length of the workpiece to be clamped, and when the contact area between the rotating clamping claw and the workpiece in the above solution becomes very small, when the surface of the workpiece being clamped is smooth, the workpiece is not easy to be clamped, resulting in a reduction in clamping efficiency. Therefore, further improvements can be made. Utility Model Content

[0005] To address the aforementioned problems, this utility model provides the following technical solution: an automated production line clamping device, comprising a guide rail, a bidirectional lead screw rotatably connected to the center of the guide rail, the bidirectional lead screw being driven to rotate by an external motor, sliders slidably connected to both ends of the guide rail, and the bidirectional lead screw screw screwed into the center of the sliders, support plates fixedly installed on both sides of the sliders, a base plate fixedly installed at the bottom of the support plates, a connecting plate fixedly installed on the bottom side of the base plate, and a clamping assembly for clamping workpieces provided at the bottom of the connecting plate. By driving the bidirectional lead screw to rotate within the center of the sliders, the sliders on both sides will slide relative to each other, thereby causing the clamping assemblies on both sides to move closer or further apart, thus completing the clamping and release operation of the product.

[0006] As an optimization, several balls are embedded on both the upper and lower sides of the slider, and grooves are opened on the inner walls of the upper and lower sides of the connecting plate. The balls are rolled and connected in the grooves. By sliding the balls in the grooves, the friction of the slider during sliding can be reduced, and wear can be reduced.

[0007] As an optimization, the clamping assembly includes a clamping plate fixedly installed at the bottom of the connecting plate. The clamping plate has a sliding hole inside, and a guide rod is slidably inserted into the sliding hole. A backing plate is fixedly installed at one end of the front of the guide rod. Suction cups are installed on the side of the clamping plate and at the four corners of the backing plate. The suction cups adhere tightly to the smooth surface of the workpiece for adsorption, thereby improving the stability of clamping.

[0008] As an optimization, the surface of the abutment is provided with a rubber pad to increase friction, and the surface of the rubber pad has an uneven texture.

[0009] As an optimization, a piston block is fixedly installed on the outer side of a section of the guide rod inside the sliding hole. A fixing ring is fixedly installed on the inner wall of the sliding hole. The other end of the guide rod is slidably inserted into the fixing ring. A spring is fixedly installed between the piston block and the fixing ring, and the spring is sleeved on the outer side of the guide rod. A flexible tube is connected in the space between the piston block and the inner wall of the sliding hole, and the other end of the flexible tube is connected to the suction cup. By sliding the piston block along the inner wall of the sliding hole and suction along the flexible tube, a negative pressure is formed inside the suction cup, which can further improve the suction cup's adsorption and fixation effect on the workpiece.

[0010] As an optimization, a dual-axis cylinder is fixedly installed inside both the upper and lower sides of the clamping plate. A sleeve is fixedly installed on both sides of the clamping plate corresponding to the dual-axis cylinder. A straightening rod is fixedly installed at one end of the dual-axis cylinder that passes through the sleeve. By activating the dual-axis cylinder, the straightening rods on both sides can be moved closer together to straighten the product.

[0011] As an optimization, pressure sensors are provided on the side of the support plate and the straightening rod that contact the workpiece. The pressure sensors control the start and stop of the external motor and the dual-axis cylinder respectively. The pressure sensors can be used to shut down the cylinder in time to avoid damage to the workpiece due to overpressure.

[0012] The beneficial effects of this utility model are: 1. The clamping device of this automated production line, by activating the dual-axis cylinder, will drive the two side straightening rods to move closer together, thereby straightening the product. Then, drive the bidirectional lead screw to rotate inside the slider, which will drive the two side sliders to move closer together, thereby driving the two side clamping plates to move closer together. Therefore, the abutment plates will clamp the workpiece on both sides, and the suction cup will adhere tightly to the smooth surface of the workpiece for adsorption and positioning, thereby improving the stability of clamping.

[0013] 2. When the clamping device of this automated production line contacts the workpiece surface through the abutments on both sides, it will drive the guide rod to move into the interior of the sliding hole, which will in turn drive the piston block to slide along the inner wall of the sliding hole. Therefore, it will suck along the hose, so that a negative pressure is formed inside the suction cup, thereby further improving the suction cup's adsorption and fixation effect on the workpiece. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a cross-sectional schematic diagram of the transmission structure of this utility model; Figure 3 This is a schematic diagram of the clamping structure of this utility model; Figure 4 This is a cross-sectional view of the internal structure of the clamping mechanism of this utility model.

[0015] In the diagram: 1. Guide rail; 2. Two-way lead screw; 3. Slider; 4. Support plate; 5. Base plate; 6. Connecting plate; 7. Clamping assembly; 8. Ball bearing; 9. Clamping plate; 10. Sliding hole; 11. Guide rod; 12. Support plate; 13. Suction cup; 14. Piston block; 15. Fixing ring; 16. Spring; 17. Hose; 18. Dual-axis cylinder; 19. Sleeve; 20. Straightening rod. Detailed Implementation

[0016] In the description of this application, it should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and are not intended to 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 of this application.

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0018] Please see Figure 1-2 An automated production line clamping device includes a guide rail 1, a bidirectional lead screw 2 rotatably connected to the center of the guide rail 1, the bidirectional lead screw 2 being driven to rotate by an external motor, sliders 3 being slidably connected to both ends of the guide rail 1, and the bidirectional lead screw 2 being screwed into the center of the sliders 3, support plates 4 being fixedly installed on both sides of the sliders 3, a base plate 5 being fixedly installed at the bottom of the support plates 4, a connecting plate 6 being fixedly installed on the bottom side of the base plate 5, and a clamping assembly 7 for clamping workpieces being provided at the bottom of the connecting plate 6. By driving the bidirectional lead screw 2 to rotate in the center of the sliders 3, the sliders 3 on both sides will slide relative to each other, thereby causing the clamping assembly 7 on both sides to move closer or further away, thus completing the clamping and release operation of the product; several balls 8 are embedded on the upper and lower sides of the sliders 3, and grooves are opened on the inner walls of the upper and lower sides of the connecting plate 6, and the balls 8 are rolled and connected in the grooves. By the balls 8 sliding in the grooves, the friction of the sliders 3 during sliding can be reduced, thus reducing wear; Please see Figure 3-4 The clamping assembly 7 includes a clamping plate 9 fixedly installed at the bottom of the connecting plate 6. The clamping plate 9 has a sliding hole 10 inside, and a guide rod 11 is slidably inserted into the sliding hole 10. A stop plate 12 is fixedly installed at one end of the front of the guide rod 11. The surface of the stop plate 12 is provided with a rubber pad to increase friction, and the surface of the rubber pad has uneven texture. Suction cups 13 are installed on the side of the clamping plate 9 and at the four corners of the stop plate 12. When the clamping plates 9 on both sides are brought closer together, the stop plate 12 will clamp the workpiece on both sides, thereby clamping the workpiece. At the same time, the suction cups 13 adhere tightly to the smooth surface of the workpiece to adsorb, improving the stability of the clamping. Please see Figure 3-4A piston block 14 is fixedly installed on the outer side of a section of the guide rod 11 inside the sliding hole 10. A fixing ring 15 is fixedly installed on the inner wall of the sliding hole 10. The other end of the guide rod 11 is slidably inserted into the fixing ring 15. A spring 16 is fixedly installed between the piston block 14 and the fixing ring 15, and the spring 16 is sleeved on the outer side of the guide rod 11. A flexible hose 17 is connected in the space between the piston block 14 and the inner wall of the sliding hole 10, and the other end of the flexible hose 17 is connected to the suction cup 13. When the product is in contact with the products through the two abutments 12, the guide rod 11 will move into the interior of the sliding hole 10, which will in turn drive the piston block 14 to slide along the inner wall of the sliding hole 10. Therefore, suction will be performed along the flexible hose 17, so that a negative pressure is formed inside the suction cup 13, which can further improve the adsorption and fixation effect of the suction cup 13 on the workpiece. Please see Figure 3-4 A dual-axis cylinder 18 is fixedly installed inside both the upper and lower sides of the clamping plate 9. A sleeve 19 is fixedly installed on both sides of the clamping plate 9 corresponding to the dual-axis cylinder 18. A straightening rod 20 is fixedly installed at one end of the dual-axis cylinder 18 that passes through the sleeve 19. By starting the dual-axis cylinder 18, the straightening rods 20 on both sides can be moved closer to each other, so the product can be straightened and the stability of the clamping can be further improved. Please see Figure 3-4 Pressure sensors are installed on the side of the support plate 12 and the straightening rod 20 that contact the workpiece. The pressure sensors control the start and stop of the external motor and the dual-axis cylinder 18 respectively. The pressure sensors detect the pressure when the workpiece is clamped in real time and shut off in time when the threshold is reached, thereby avoiding damage to the workpiece due to overpressure.

[0019] In use, the dual-axis cylinder 18 is first activated, which will drive the two straightening rods 20 to move closer together, thus straightening the product. Then, the external motor drives the bidirectional lead screw 2 to rotate inside the slider 3, which will drive the two sliders 3 to move closer together and slide. This will cause the two clamping plates 9 to move closer together and clamp the two sides of the workpiece, so that the abutment 12 contacts the surface of the workpiece. At the same time, the suction cup 13 will stick tightly to the smooth surface of the workpiece for adsorption and positioning, thereby improving the stability of clamping. At the same time, when the abutments 12 on both sides contact the surface of the workpiece, they will drive the guide rod 11 to move into the sliding hole 10, which will in turn drive the piston block 14 to slide along the inner wall of the sliding hole 10, so it will be sucked along the hose 17, so that a negative pressure is formed inside the suction cup 13, which can further improve the adsorption and fixation effect of the suction cup 13 on the workpiece.

[0020] In summary, the clamping device of this automated production line, by activating the dual-axis cylinder 18, will drive the two side straightening rods 20 to move closer together, thus straightening the product. Then, by driving the bidirectional lead screw 2 to rotate inside the slider 3, the two side sliders 3 will move closer together, which will in turn drive the two side clamping plates 9 to move closer together. Therefore, the abutment plate 12 will clamp the two sides of the workpiece, and the suction cup 13 will adhere tightly to the smooth surface of the workpiece for adsorption and positioning, thereby improving the stability of clamping.

[0021] When the abutments 12 on both sides contact the surface of the workpiece, they will drive the guide rod 11 to move into the sliding hole 10, which will in turn drive the piston block 14 to slide along the inner wall of the sliding hole 10. Therefore, it will be sucked along the hose 17, so that a negative pressure is formed inside the suction cup 13, thereby further improving the adsorption and fixation effect of the suction cup 13 on the workpiece.

[0022] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," "join," and "fix" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0023] All standard parts used in this invention can be purchased from the market, and irregular parts can be customized according to the description and drawings.

[0024] The above are merely preferred embodiments of this utility model, but the scope of protection of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in this utility model, based on the technical solution and inventive concept of this utility model, should be included within the scope of protection of this utility model.

Claims

1. An automated production line clamping device, comprising a guide rail (1), characterized in that: A bidirectional lead screw (2) is rotatably connected to the center of the guide rail (1). The bidirectional lead screw (2) is driven to rotate by an external motor. A slider (3) is slidably connected to both ends of the guide rail (1). The bidirectional lead screw (2) is screwed into the center of the slider (3). A support plate (4) is fixedly installed on both sides of the slider (3). A base plate (5) is fixedly installed at the bottom of the support plate (4). A connecting plate (6) is fixedly installed on the bottom side of the base plate (5). A clamping assembly (7) for clamping workpieces is provided at the bottom of the connecting plate (6).

2. The automated production line clamping device according to claim 1, characterized in that: The upper and lower sides of the slider (3) are each fitted with a number of balls (8), and the upper and lower inner walls of the connecting plate (6) are provided with grooves, and the balls (8) are rolled and connected in the grooves.

3. The automated production line clamping device according to claim 1, characterized in that: The clamping assembly (7) includes a clamping plate (9) fixedly installed at the bottom of the connecting plate (6). The clamping plate (9) has a sliding hole (10) inside. A guide rod (11) is slidably inserted into the sliding hole (10). A backing plate (12) is fixedly installed at one end of the front of the guide rod (11). Suction cups (13) are installed on the side of the clamping plate (9) and at the four corners of the backing plate (12).

4. The automated production line clamping device according to claim 3, characterized in that: The surface of the abutment (12) is provided with a rubber pad to increase friction, and the surface of the rubber pad has an uneven texture.

5. The automated production line clamping device according to claim 3, characterized in that: A piston block (14) is fixedly installed on the outer side of a section of the guide rod (11) inside the sliding hole (10). A fixing ring (15) is fixedly installed on the inner wall of the sliding hole (10). The other end of the guide rod (11) is slidably inserted into the fixing ring (15). A spring (16) is fixedly installed between the piston block (14) and the fixing ring (15), and the spring (16) is sleeved on the outer side of the guide rod (11). A flexible hose (17) is connected in the space between the piston block (14) and the inner wall of the sliding hole (10), and the other end of the flexible hose (17) is connected to the suction cup (13).

6. The automated production line clamping device according to claim 3, characterized in that: A dual-axis cylinder (18) is fixedly installed inside both the upper and lower sides of the clamping plate (9). A sleeve (19) is fixedly installed on both sides of the clamping plate (9) corresponding to the dual-axis cylinder (18). A straightening rod (20) is fixedly installed at one end of the dual-axis cylinder (18) that passes through the sleeve (19).

7. The automated production line clamping device according to claim 6, characterized in that: Pressure sensors are provided on the side of the abutment (12) and the straightening rod (20) that contact the workpiece, and the pressure sensors control the start and stop of the external motor and the dual-axis cylinder (18) respectively.

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