A dual-redundancy error-proofing device for automated machining production lines

Abstract

This utility model relates to an error prevention device, specifically a dual-redundant error prevention device for an automated machining production line. It includes a feeding port, a double-layer double-speed chain conveyor, a robot feeding port, and the dual-redundant error prevention device. The dual-redundant error prevention device is installed at the left end of the double-layer double-speed chain conveyor, and the robot feeding port is located to the left of the dual-redundant error prevention device. The feeding port is installed at the right end of the double-layer double-speed chain conveyor. This utility model reduces the error rate to below 0.5%, converts sliding friction into rolling friction, reduces motion resistance, extends service life by 30%, supports quick replacement of barcode scanner models, and is compatible with different specifications of QR codes.

Description

Technical Field

[0001] This utility model relates to a fault-prevention device, specifically a dual-redundant fault-prevention device for an automated machining production line. Background Technology

[0002] In the flexible manufacturing system for new energy vehicles, derivative products from the same platform (such as product A / B) exhibit high homogeneity due to partial engineering changes (ECN). Current production lines have the following shortcomings:

[0003] High reliance on manual labor: The material feeding process relies on manual visual identification, with a misjudgment rate of >15%, leading to systemic risks such as material mixing and collisions, and abnormal tool breakage;

[0004] Insufficient compatibility: Traditional fixtures cannot distinguish subtle differences (such as shoulder height ±0.5mm, irregular groove offset, etc.), requiring frequent tooling changes, reducing efficiency by 40%;

[0005] Delayed quality control: Defects such as missing parts and out-of-tolerance dimensions can only be detected in subsequent processes, increasing rework costs by 30%. Summary of the Invention

[0006] The purpose of this invention is to overcome the above-mentioned shortcomings and provide a dual-redundancy error prevention device for automated machining production lines.

[0007] The objective of this utility model is achieved through the following technical solution: A dual-redundancy error-proofing device for an automated machining production line, comprising a feeding port, a double-layer double-speed chain conveyor, a robot feeding port, and a dual-redundancy error-proofing device. The dual-redundancy error-proofing device is installed at the left end of the double-layer double-speed chain conveyor, and a robot feeding port is located to the left of the dual-redundancy error-proofing device. A feeding port is installed at the right end of the double-layer double-speed chain conveyor. The dual-redundancy error-proofing device includes a support base mounted on a base plate. A blocking cylinder seat is located at the front end of the base plate and is fixedly mounted on the base plate. A first guide rod cylinder is fixedly mounted on the front of the blocking cylinder seat. A stop block is located at the upper end of the first guide rod cylinder, and the lower end of the stop block is connected to the telescopic rod of the first guide rod cylinder. A first cylinder mounting seat is located on the back of the stop block and is fixedly mounted on the base plate. A first cylinder is mounted at the lower end of the first cylinder mounting seat, and a first lifting connecting rod is located at the upper end of the first cylinder mounting seat. The middle of the first lifting connecting rod is connected to the first... A cylinder is connected by a telescopic rod. First longitudinal connecting rods are installed at both ends of the first lifting connecting rod. The upper end of the first longitudinal connecting rod is connected to the first lifting connecting rod, and the lower end of the first longitudinal connecting rod passes through the base plate. A second cylinder mounting seat is installed at the rear end of the base plate and is fixedly mounted on the base plate. A second cylinder is installed at the lower end of the second cylinder mounting seat, and a second lifting connecting rod is provided at the upper end of the second cylinder mounting seat. The middle of the second lifting connecting rod is connected to the telescopic rod of the second cylinder. Second longitudinal connecting rods are installed at both ends of the second lifting connecting rod. The upper end of the second longitudinal connecting rod is connected to the second lifting connecting rod, and the lower end of the second longitudinal connecting rod passes through the base plate. The lower ends of the first and second longitudinal connecting rods are connected by a connecting rod. A second guide rod cylinder is fixedly installed at the upper end of the support base. An error-proofing sensor is installed on the telescopic rod of the second guide rod cylinder. A barcode scanner is located next to the second guide rod cylinder and is fixedly mounted on the upper end of the support base.

[0008] Positioning pins are installed on the first and second lifting connecting rods, and a sensor seat is installed on the second lifting connecting rod.

[0009] This utility model has the following advantages compared with the prior art:

[0010] 1. By using a double-layer speed-up chain conveyor line and a closed-loop return path design, the capacity limitation of traditional single-line conveying is broken through;

[0011] 2. Dual redundancy error prevention mechanism: Mechanical positioning and intelligent recognition work together to verify the error rate, reducing the false judgment rate to below 0.5%;

[0012] 3. Modular expansion interface: Supports quick switching of barcode scanner models and adapts to different QR code specifications. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of this practical new automated machining production line;

[0014] Figure 2 This is a schematic diagram of the front of this practical new dual-redundancy error-proofing device;

[0015] Figure 3 This is a structural diagram of the back of this practical new dual-redundancy error-proofing device;

[0016] The diagram is labeled as follows: 1. Feeding port - 1; 2. Double-layer speed-increasing chain conveyor - 2; 3. Induction seat - 3; 4. Robot feeding port - 4; 5. Dual-redundant error prevention device - 5; 6. Support seat - 6; Base plate - 7; 8. Blocking cylinder seat - 8; 9. First guide rod cylinder - 9; 10. Stop block - 11; 12. First cylinder mounting seat - 13; 14. First longitudinal connecting rod - 15; 16. Second cylinder mounting seat - 17; 18. Second longitudinal connecting rod - 19; Connecting rod - 10; 20. Second guide rod cylinder - 21; Error prevention sensor - 21; Barcode scanner - 22; Positioning pin - 23. Detailed Implementation

[0017] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions in the embodiments of this utility model will be clearly and completely described below. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Elements and features described in one embodiment of this utility model can be combined with elements and features shown in one or more other embodiments. It should be noted that, for clarity, representations and descriptions of components and processes unrelated to this utility model and known to those skilled in the art are omitted in the description. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0018] A dual-redundancy error prevention device for an automated machining production line includes a feeding port 1, a double-layer double-speed chain conveyor line 2, a robot feeding port 4, and a dual-redundancy error prevention device 5. The dual-redundancy error prevention device 5 is installed at the left end of the double-layer double-speed chain conveyor line 2, the robot feeding port 4 is located to the left of the dual-redundancy error prevention device 5, and the feeding port 1 is installed at the right end of the double-layer double-speed chain conveyor line 2. Through the design of the double-layer double-speed chain conveyor line 2 and the closed-loop return path, the capacity limitation of traditional single-line conveying is broken.

[0019] The dual-redundant error prevention device 5 includes a support base 6, which is mounted on a base plate 7. A blocking cylinder seat 8 is located at the front end of the base plate 7 and is fixedly mounted thereon. A first guide rod cylinder 9 is fixedly mounted on the front of the blocking cylinder seat 8. A stop block 10 is located at the upper end of the first guide rod cylinder 9, and the lower end of the stop block 10 is connected to the telescopic rod of the first guide rod cylinder 9. A first cylinder mounting seat 11 is located on the back of the stop block 10 and is fixedly mounted on the base plate 7. A first cylinder 12 is mounted on the lower end of the cylinder mounting base 11. A first lifting connecting rod 13 is provided on the upper end of the first cylinder mounting base 11. The middle of the first lifting connecting rod 13 is connected to the telescopic rod of the first cylinder 12. First longitudinal connecting rods 14 are mounted on the left and right ends of the first lifting connecting rod 13. The upper end of the first longitudinal connecting rod 14 is connected to the first lifting connecting rod 13. The lower end of the first longitudinal connecting rod 14 passes through the base plate 7. A second cylinder mounting base 15 is mounted on the rear end of the base plate 7. The cylinder mounting base 15 is fixedly installed on the base plate 7. The lower end of the second cylinder mounting base 15 is equipped with a second cylinder 16. The upper end of the second cylinder mounting base 15 is provided with a second lifting connecting rod 17. The middle of the second lifting connecting rod 17 is connected to the telescopic rod of the second cylinder 16. The left and right ends of the second lifting connecting rod 17 are equipped with second longitudinal connecting rods 18. The upper end of the second longitudinal connecting rod 18 is connected to the second lifting connecting rod 17. The lower end of the second longitudinal connecting rod 18 passes through the base plate 7. The lower ends of the first longitudinal connecting rod 14 and the second longitudinal connecting rod 18 are connected by a connecting rod 19. The upper end of the support base 6 is fixedly installed with a second guide rod cylinder 20. The telescopic rod of the second guide rod cylinder 20 is equipped with an error-proof sensor 21. A barcode scanner 22 is provided next to the second guide rod cylinder 20. The barcode scanner 22 is fixedly installed on the upper end of the support base 6, supports quick replacement of barcode scanner models, adapts to different specifications of QR codes, and uses mechanical positioning and intelligent recognition to perform collaborative verification, reducing the error rate to below 0.5%.

[0020] Positioning pins 23 are installed on the first lifting connecting rod 13 and the second lifting connecting rod 17, and a sensor seat 3 is installed on the second lifting connecting rod 17.

[0021] Working principle:

[0022] Feed port module:

[0023] After the workpiece is manually placed on the inlet tray, the lifting machine is positioned by an absolute encoder and vertically lifted 300mm along the linear guide to the upper conveyor line.

[0024] The safety light curtain forms a 400×600mm rectangular monitoring area. When personnel intrusion is detected, the emergency stop circuit is immediately triggered and the hydraulic system of the hoist is locked. Operation is resumed after the personnel have exited by pressing the reset button.

[0025] Double-layer high-speed chain conveyor line:

[0026] The upper conveyor line is driven by a variable frequency speed control motor, and the conveying speed is adjustable from 0.5 to 3 m / s. It is equipped with workpiece anti-deviation limit guards.

[0027] The lower rotary line achieves 180° horizontal rotation through a worm gear mechanism, forming a closed-loop circulation system with the upper line, with a pallet return cycle of ≤15s.

[0028] Model identification device:

[0029] Adjust the initial position of stop 10;

[0030] When a product enters, barcode scanner 22 reads the QR code information, and the system verifies the specifications.

[0031] Error prevention sensor 21 detects the offset of irregular position, generates a code, and compares it with the QR code information;

[0032] After the double verification is passed, the first cylinder 12 and the second cylinder 16 drive the positioning pin 23 to insert, triggering the robot to pick up the material;

[0033] If any verification fails, the error prevention sensor 21 will trigger an interception and an alarm will prompt manual intervention.

[0034] Robot loading station:

[0035] After receiving the material handling instruction, the robot uses a force-position hybrid control algorithm to complete the workpiece gripping, with a gripping and positioning accuracy of ±0.1mm;

[0036] After the material is picked up, the lifting platform descends to the lower line via a magnetic coupling cylinder, and the empty pallet returns to the unloading port via a chain conveyor.

[0037] Finally, it should be noted that although the present invention and its advantages have been described in detail above, it should be understood that various changes, substitutions, and modifications can be made without departing from the spirit and scope of the present invention as defined by the appended claims. Furthermore, the scope of the present invention is not limited to the specific embodiments of the processes, apparatus, means, methods, and steps described in the specification. Those skilled in the art will readily understand from the disclosure of the present invention that existing and future processes, apparatus, means, methods, or steps that perform substantially the same functions or obtain substantially the same results as the corresponding embodiments described herein can be used according to the present invention. Therefore, the appended claims are intended to include such processes, apparatus, means, methods, or steps within their scope.

Claims

1. A dual-redundant error-proofing device for an automated machining production line, comprising a loading port (1), a double-layer double-speed chain conveyor (2), a robot loading port (4), and a dual-redundant error-proofing device (5), wherein the dual-redundant error-proofing device (5) is installed at the left end of the double-layer double-speed chain conveyor (2), the robot loading port (4) is provided on the left side of the dual-redundant error-proofing device (5), and the loading port (1) is installed at the right end of the double-layer double-speed chain conveyor (2), characterized in that: The dual-redundant error prevention device (5) is provided with a support base (6), which is installed on the base plate (7). The front end of the base plate (7) is provided with a blocking cylinder seat (8), which is fixedly installed on the base plate (7). A first guide rod cylinder (9) is fixedly installed on the front of the blocking cylinder seat (8). A stop block (10) is provided at the upper end of the first guide rod cylinder (9). The lower end of the stop block (10) is connected to the telescopic rod of the first guide rod cylinder (9). A first cylinder mounting seat (11) is provided on the back of the stop block (10). The base (11) is fixedly installed on the base plate (7). The first cylinder (12) is installed at the lower end of the first cylinder mounting base (11). The first lifting connecting rod (13) is provided at the upper end of the first cylinder mounting base (11). The middle of the first lifting connecting rod (13) is connected to the telescopic rod of the first cylinder (12). The left and right ends of the first lifting connecting rod (13) are equipped with first longitudinal connecting rods (14). The upper end of the first longitudinal connecting rod (14) is connected to the first lifting connecting rod (13). The lower end of the first longitudinal connecting rod (14) passes through... The base plate (7) has a second cylinder mounting seat (15) installed at its rear end. The second cylinder mounting seat (15) is fixedly installed on the base plate (7). A second cylinder (16) is installed at the lower end of the second cylinder mounting seat (15). A second lifting connecting rod (17) is provided at the upper end of the second cylinder mounting seat (15). The middle of the second lifting connecting rod (17) is connected to the telescopic rod of the second cylinder (16). Second longitudinal connecting rods (18) are installed at the left and right ends of the second lifting connecting rod (17). The upper end of the first longitudinal connecting rod (14) is connected to the second lifting connecting rod (17), the lower end of the second longitudinal connecting rod (18) passes through the base plate (7), the lower ends of the first longitudinal connecting rod (14) and the second longitudinal connecting rod (18) are connected by the connecting rod (19), the upper end of the support base (6) is fixedly installed with the second guide rod cylinder (20), the telescopic rod of the second guide rod cylinder (20) is equipped with an error prevention sensor (21), and a barcode scanner (22) is provided next to the second guide rod cylinder (20). The barcode scanner (22) is fixedly installed on the upper end of the support base (6).

2. A dual-redundant error-proofing device for a machine tool automation line according to claim 1, characterized in that: Positioning pins (23) are installed on the first lifting connecting rod (13) and the second lifting connecting rod (17), and a sensor seat (3) is installed on the second lifting connecting rod (17).

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