Anti-falling vacuum suction type clamp for automatic plate unloading machine

Abstract

The utility model relates to the technical field of board processing, especially a kind of anti-falling vacuum suction type clamp for automatic plate unloading machine, and its technical scheme includes: suction cup subassembly, the suction cup subassembly is used to adsorb board, and anti-falling subassembly is installed on the suction cup subassembly;The anti-falling subassembly includes active hook fixture subassembly and driven hook fixture subassembly, and the active hook fixture subassembly and driven hook fixture subassembly are used to selectively hold board;The active hook fixture subassembly and driven hook fixture subassembly are driven connection by connecting rod.This utility model has the function of anti-falling, solves the problem that single vacuum adsorption is easily failure under abnormal working condition and leads to board slide.

Description

Technical Field

[0001] This utility model relates to the field of sheet metal processing technology, specifically to an anti-drop vacuum adsorption clamp for an automatic unloading machine. Background Technology

[0002] In automated sheet metal processing production lines, automatic unloading machines are one of the core pieces of equipment for achieving efficient material handling. These machines typically rely on vacuum adsorption clamps to grip, transport, and lower the sheets, and their stability and safety directly impact production efficiency and product quality. Vacuum adsorption technology, with its non-contact gripping and wide adaptability, is widely used in handling various sheet metal materials such as glass, metal, and composite materials.

[0003] Currently, when the adsorption force decreases due to oil stains on the surface of the board, blockage of pores, or fluctuations in system pressure, the clamp's fixation of the board relies entirely on airtightness. In this case, pure adsorption clamps are prone to slippage.

[0004] Therefore, there is an urgent need for an anti-drop vacuum adsorption clamp for automatic unloading machines to improve the reliability and safety of the handling process. Utility Model Content

[0005] The purpose of this invention is to provide an anti-fall vacuum adsorption clamp for an automatic unloading machine, which has an anti-fall function and solves the problem that single vacuum adsorption is prone to failure under abnormal working conditions, causing the board to slip.

[0006] To achieve the above objectives, this utility model provides the following technical solution: an anti-fall vacuum adsorption clamp for an automatic unloading machine, comprising a suction cup assembly for adsorbing sheet metal, and an anti-fall component installed on the suction cup assembly; the anti-fall component comprises an active hook assembly and a driven hook assembly, the active hook assembly and the driven hook assembly for selectively clamping the sheet metal; the active hook assembly and the driven hook assembly are connected by a connecting rod.

[0007] Preferably, the suction cup assembly includes a mounting plate, on which a cylinder for height adjustment is mounted. Holes are opened at the four corners of the mounting plate for a connecting tube to pass through. The bottom of the connecting tube passes through the mounting plate and is fitted with the suction cup body.

[0008] In the design, a height adjustment cylinder is set on the mounting plate to achieve precise vertical position control of the suction cup body, which can adapt to the gripping needs of different thickness plates and ensure that the adsorption plane is in close contact with the plate surface. At the same time, in order to achieve the horizontal displacement of the device, a horizontal adjustment cylinder is also required along the horizontal direction.

[0009] The mounting plate has openings at four corners for the connecting pipe to pass through, providing multi-point adsorption capacity. This distributed layout at the four corners ensures that the suction force is evenly distributed across the plate surface, preventing plate deformation or adsorption failure caused by localized stress concentration.

[0010] Preferably, the outer wall of the connecting tube is threaded and a positioning screw is threadedly connected thereto. The positioning screw is used to lock the position of the connecting tube on the mounting plate. An air guide tube is connected to the top of the connecting tube and is connected to an external air source to control the adsorption state of the suction cup body.

[0011] In the design, the threads on the outer wall of the connecting pipe cooperate with the positioning screw to achieve the locking function of the adsorption point position;

[0012] The air duct at the top of the connecting tube is directly connected to an external air source, enabling it to quickly switch between the suction cup's adsorption and release states. Combined with a vacuum generator, it achieves millisecond-level response, improving handling efficiency.

[0013] Preferably, the active hook assembly includes a first mounting frame, which is fixed to the mounting plate by bolts. The first mounting frame is provided with an adjusting cylinder and a first hook claw. The adjusting cylinder drives the first hook claw to rotate. The cylinder body of the adjusting cylinder is rotatably connected to the first mounting frame, and the output end of the adjusting cylinder is rotatably connected to the first hook claw. The first hook claw is rotatably connected to the first mounting frame.

[0014] In the design, the adjusting cylinder of the active hook assembly achieves precise angle control of the first hook claw through a three-point linkage structure in which the cylinder body is rotatably connected to the first mounting bracket and the output end is rotatably connected to the first hook claw.

[0015] When vacuum adsorption fails, the cylinder-driven first hook can provide rigid support from below the plate to prevent it from slipping.

[0016] Preferably, the driven hook assembly includes a second mounting bracket, which is fixed to the mounting plate by bolts. A second hook is provided inside the second mounting bracket, and the second hook is rotatably connected to the second mounting bracket.

[0017] In the design, the second hook of the driven hook assembly is directly rotatably connected to the second mounting bracket, adopting a passive follow-up structure, which does not require an independent power source;

[0018] By using the coordinated clamping capability of the active hook assembly to synchronously respond to the action of the connecting rod, the opening and closing actions of the two hooks are made consistent, thus avoiding the tilting of the plate caused by asynchronous operation.

[0019] Preferably, the two ends of the connecting rod are fixedly connected to the first hook and the second hook, respectively, and the connecting rod is provided with weight-reducing holes evenly distributed on it.

[0020] In the design, the first hook and the second hook are fixedly connected at both ends of the connecting rod to realize the forced linkage of the two hooks. The rigid transmission eliminates the action delay and ensures the instantaneous response of the fall arrestor.

[0021] The evenly spaced weight-reducing holes on the rod body are designed for lightweighting, which reduces inertial load while ensuring transmission rigidity, thereby reducing the energy consumption of the robotic arm and improving motion accuracy.

[0022] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0023] This invention achieves the function of selectively clamping the plate by installing an anti-fall component on the suction cup assembly. The anti-fall component includes an active hook assembly and a driven hook assembly, which are connected by a connecting rod. This achieves the effect of preventing the plate from slipping by coordinating the mechanical hooks to clamp it when the vacuum adsorption fails abnormally.

[0024] The active hook assembly drives the clamping action and synchronously drives the driven hook assembly through the connecting rod, so that the two form a rigid clamp on the plate. When the vacuum adsorption of the suction cup assembly fails due to surface contamination of the plate, pore blockage, or system pressure fluctuations, it can provide double safety protection and solve the problem that the plate is prone to fall off under abnormal working conditions due to single vacuum adsorption. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the main structure of this utility model;

[0026] Figure 2 This is a schematic diagram of the structure of this utility model from another perspective;

[0027] Figure 3 This is a schematic diagram of the suction cup assembly structure of this utility model;

[0028] Figure 4 This is a schematic diagram of the fall arrestor component of this utility model.

[0029] In the diagram: 1. Suction cup assembly; 11. Mounting plate; 12. Connecting pipe; 13. Suction cup body; 14. Air guide pipe; 2. Anti-fall assembly; 21. Active hook assembly; 211. Adjusting cylinder; 212. First mounting frame; 213. First claw; 22. Driven hook assembly; 221. Second mounting frame; 222. Second claw; 23. Connecting rod. Detailed Implementation

[0030] 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.

[0031] Example

[0032] like Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, one embodiment of this utility model is provided: an anti-fall vacuum adsorption clamp for an automatic unloading machine, including a suction cup assembly 1, which is used to adsorb the sheet metal, and an anti-fall assembly 2 is installed on the suction cup assembly 1; the anti-fall assembly 2 includes an active hook assembly 21 and a driven hook assembly 22, which are used to selectively clamp the sheet metal; the active hook assembly 21 and the driven hook assembly 22 are connected by a connecting rod 23.

[0033] Specifically, by installing an anti-fall component 2 on the suction cup assembly 1, wherein the anti-fall component 2 includes an active hook assembly 21 and a driven hook assembly 22, and the active hook assembly 21 and the driven hook assembly 22 are connected by a connecting rod 23, the function of selectively clamping the plate is realized, and the effect of preventing slippage is achieved by mechanically clamping the plate in the event of abnormal failure of vacuum adsorption.

[0034] The active hook assembly 21 drives the clamping action and synchronously drives the driven hook assembly 22 through the connecting rod 23, so that the two form a rigid clamp on the plate. When the vacuum adsorption of the suction cup assembly 1 fails due to surface contamination of the plate, pore blockage or system pressure fluctuation, it can provide double safety protection and solve the problem that the plate is easy to fall off under abnormal working conditions due to single vacuum adsorption.

[0035] To achieve multi-point adsorption and height adaptive adjustment of the suction cup assembly, such as Figure 1 , Figure 2 and Figure 3 As shown, the suction cup assembly 1 further includes a mounting plate 11, on which a cylinder for height adjustment is mounted. Holes are opened at the four corners of the mounting plate 11 for the connecting pipe 12 to pass through. The bottom of the connecting pipe 12 passes through the mounting plate 11 and is fitted with the suction cup body 13.

[0036] Specifically, the height adjustment cylinder on the mounting plate 11 enables precise vertical position control of the suction cup body 13, which can adapt to the gripping needs of different thickness plates and ensure that the adsorption plane is in close contact with the plate surface. At the same time, in order to achieve the horizontal displacement of the device, a horizontal adjustment cylinder is also required along the horizontal direction.

[0037] The mounting plate 11 has openings at four corners for the connecting pipe 12 to pass through, providing multi-point adsorption capacity. The distributed layout at the four corners ensures that the suction force is evenly transferred to the surface of the plate, avoiding plate deformation or adsorption failure caused by local stress concentration.

[0038] To achieve flexible adjustment of the adsorption point and rapid response of the gas path, such as Figure 2 and Figure 3 As shown, the outer wall of the connecting tube 12 is threaded and a positioning screw is threadedly connected to it. The positioning screw is used to lock the position of the connecting tube 12 on the mounting plate 11. The top of the connecting tube 12 is connected to an air guide tube 14, which is connected to an external air source to control the adsorption state of the suction cup body 13.

[0039] Specifically, the threads on the outer wall of the connecting pipe 12, in conjunction with the positioning screw, enable the locking function of the adsorption point position;

[0040] The top air guide tube 14 of the connecting tube 12 adopts an external air source direct connection method, which has the ability to quickly switch the adsorption and release states of the suction cup body 13. Combined with the vacuum generator, it achieves millisecond-level response and improves handling efficiency.

[0041] To achieve precise angle control and fall-prevention lifting of the active hook, such as Figure 4 As shown, the active hook assembly 21 further includes a first mounting frame 212, which is fixed to the mounting plate 11 by bolts. The first mounting frame 212 is provided with an adjusting cylinder 211 and a first hook 213. The adjusting cylinder 211 drives the first hook 213 to rotate. The cylinder body of the adjusting cylinder 211 is rotatably connected to the first mounting frame 212, and the output end of the adjusting cylinder 211 is rotatably connected to the first hook 213. The first hook 213 is rotatably connected to the first mounting frame 212.

[0042] Specifically, the adjusting cylinder 211 of the active hook assembly 21 achieves precise angle control of the first hook 213 through a three-point linkage structure that rotatably connects the cylinder body to the first mounting bracket 212 and rotatably connects the output end to the first hook 213.

[0043] When vacuum adsorption fails, the first hook 213 driven by the cylinder can provide rigid support from below the plate to prevent it from slipping.

[0044] To achieve the coordinated clamping action of the driven hook, such as Figure 4 As shown, the driven hook assembly 22 further includes a second mounting bracket 221, which is fixed to the mounting plate 11 by bolts. A second hook 222 is provided inside the second mounting bracket 221, and the second hook 222 is rotatably connected to the second mounting bracket 221.

[0045] Specifically, the second hook 222 of the driven hook assembly 22 is directly rotatably connected to the second mounting bracket 221, adopting a passive follow-up structure, and does not require an independent power source;

[0046] The coordinated clamping capability of the active hook assembly 21 in synchronous response to the connecting rod 23 ensures that the opening and closing actions of the two hooks are consistent and avoids tilting of the plate due to asynchronous operation.

[0047] To achieve forced linkage and lightweight transmission of the fall arrestor components, such as Figure 4 As shown, further, the two ends of the connecting rod 23 are fixedly connected to the first hook 213 and the second hook 222 respectively, and the connecting rod 23 is provided with weight reduction holes evenly.

[0048] Specifically, the first hook 213 and the second hook 222 are fixedly connected at both ends of the connecting rod 23 to realize the forced linkage of the two hooks. The rigid transmission eliminates the action delay and ensures the instantaneous response of the fall arrestor.

[0049] The evenly spaced weight-reducing holes on the rod body are designed for lightweighting, which reduces inertial load while ensuring transmission rigidity, thereby reducing the energy consumption of the robotic arm and improving motion accuracy.

[0050] In use, the mounting plate 11 is connected to the end of the robotic arm of the automatic unloading machine, and the air guide pipe 14 is connected to an external air source system. At the same time, the height adjustment cylinder on the mounting plate 11 is activated to maintain a preset distance between the bottom surface of the suction cup body 13 and the surface of the plate.

[0051] The robotic arm is controlled to move the suction cup assembly 1 directly above the board, and the height is lowered so that the suction cup body 13 contacts the surface of the board. The external air source is turned on to generate negative pressure in the suction cup body 13, which forms a stable suction force through the connecting pipes 12 distributed at the four corners, thus completing the gripping of the board.

[0052] The adjusting cylinder 211 of the active hook assembly 21 is activated, driving the first hook 213 to rotate around the first mounting frame 212. The rigid connecting rod 23 synchronously drives the second hook 222 of the driven hook assembly 22 to rotate around the second mounting frame 221, so that both hooks rotate simultaneously to below the edge of the plate to form a mechanical lifting structure.

[0053] During the transfer of sheet metal by the robotic arm, the suction cup body 13 maintains a vacuum adsorption state. If the adsorption force decreases due to oil stains on the sheet metal surface or if the system suddenly loses pressure, the rigid clamping structure formed by the first hook 213 and the second hook 222 immediately supports the weight of the sheet metal to prevent it from slipping.

[0054] Upon reaching the lower plate position, the adjusting cylinder 211 reverses its movement to retract the first hook 213, which, via the connecting rod 23, causes the second hook 222 to simultaneously exit the clamping position. The vacuum system is then shut off to release the plate, completing the safe lowering operation.

[0055] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A vacuum adsorption clamp for an automatic unloading machine, comprising a suction cup assembly (1) for adsorbing the board material, characterized in that: The suction cup assembly (1) is equipped with a fall protection assembly (2); the fall protection assembly (2) includes an active hook assembly (21) and a driven hook assembly (22), the active hook assembly (21) and the driven hook assembly (22) are used to selectively clamp the plate; the active hook assembly (21) and the driven hook assembly (22) are connected by a connecting rod (23).

2. The anti-drop vacuum adsorption fixture for an automatic unloading machine according to claim 1, characterized in that, The suction cup assembly (1) includes a mounting plate (11), on which a cylinder for height adjustment is mounted. Holes are opened at the four corners of the mounting plate (11) for the connecting pipe (12) to pass through. The bottom of the connecting pipe (12) passes through the mounting plate (11) and is fitted with a suction cup body (13).

3. The anti-drop vacuum adsorption fixture for an automatic unloading machine according to claim 2, characterized in that, The outer wall of the connecting tube (12) is threaded and a positioning screw is threadedly connected to it. The positioning screw is used to lock the position of the connecting tube (12) on the mounting plate (11). The top of the connecting tube (12) is connected to an air guide tube (14), which is connected to an external air source to control the adsorption state of the suction cup body (13).

4. The anti-drop vacuum adsorption fixture for an automatic unloading machine according to claim 1, characterized in that, The active hook assembly (21) includes a first mounting frame (212), which is fixed to the mounting plate (11) by bolts. The first mounting frame (212) is provided with an adjusting cylinder (211) and a first hook (213). The adjusting cylinder (211) drives the first hook (213) to rotate. The cylinder body of the adjusting cylinder (211) is rotatably connected to the first mounting frame (212), and the output end of the adjusting cylinder (211) is rotatably connected to the first hook (213). The first hook (213) is rotatably connected to the first mounting frame (212).

5. The anti-drop vacuum adsorption fixture for an automatic unloading machine according to claim 1, characterized in that, The driven hook assembly (22) includes a second mounting bracket (221), which is fixed to the mounting plate (11) by bolts. A second hook claw (222) is provided inside the second mounting bracket (221), and the second hook claw (222) is rotatably connected to the second mounting bracket (221).

6. The anti-drop vacuum adsorption fixture for an automatic unloading machine according to claim 1, characterized in that, The two ends of the connecting rod (23) are fixedly connected to the first hook (213) and the second hook (222) respectively, and the connecting rod (23) is provided with weight reduction holes evenly.

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