Flexible manufacturing tool system based on 3D printing and visual recognition algorithm

Abstract

The utility model provides a flexible manufacturing tool system based on 3D printing and a visual identification algorithm, which comprises an FMS production line, a series of conventional operation equipment such as a mechanical arm, a workpiece support frame, a workpiece, a machine tool, a cache library and an overturning table are arranged on the FMS production line, and a photocuring 3D printing device is additionally arranged in the FMS production line. The FMS production line robot clamp table is additionally provided with a clamp used for clamping the printing support, and the 3D printing device is arranged in the FMS production line. The 3D printing device has the advantages that the 3D printing device is combined with the FMS flexible production system, the problem that manual replacement is needed when the workpiece supporting frame is replaced is solved, the workpiece supporting frame can be automatically replaced when a flexible production line machines new products, line stopping and manual point alignment debugging are avoided, manpower and material resources are saved, a visual recognition system is adapted, and the production efficiency is improved. The loss degree of the workpiece supporting frame is recognized, and the damaged workpiece supporting frame is replaced in time.

Description

Technical Field

[0001] The embodiments of the utility model relate to the field of mechanical manufacturing technology, and in particular to a flexible manufacturing tooling system based on 3D printing and visual recognition algorithms. Background Art

[0002] The workpiece support is used to support the workpiece when it is turned over. The physical shape of each workpiece in each placement direction is different, so different workpiece supports are required. When the flexible line changes to a new workpiece for processing, the workpiece support needs to be customized again.

[0003] The current traditional workpiece support replacement method has the following defects:

[0004] 1. Expensive: The workpiece support frame needs to be customized by machining, which is expensive.

[0005] 2. Low flexibility: Extra material waste (finished workpieces need to be processed for point alignment during point-to-point line testing, resulting in material waste), the need to shut down the production line for manual replacement, and each process requires manual point-to-point line testing after each replacement. The flexibility is low and the labor cost is increased. In addition, a replacement cycle is approximately 7-14 days, which has a high time cost and delays the construction period.

[0006] 3. Low intelligence and self-repair level: If the workpiece support frame is damaged when the flexible line is operating normally, the system cannot determine that the workpiece support frame is damaged, which will cause the flexible line to be unable to operate normally.

[0007] In summary, the current traditional method of replacing the workpiece support frame has shortcomings. Utility Model Content

[0008] In order to solve the above technical problems, the solution adopted by the utility model is:

[0009] FMS production line, which is equipped with a series of conventional operating equipment such as a robot arm, a workpiece support frame, a workpiece, a machine tool, a buffer library and a turning table;

[0010] Adding a light-curing 3D printing device to the FMS production line;

[0011] The FMS production line robot fixture table adds a fixture for clamping the printing bracket;

[0012] The 3D printing device is arranged in the FMS production line.

[0013] A further improvement is that the FMS production line robot is equipped with a visual recognition device, and the visual recognition device is fixedly installed at the front end of the mechanical arm.

[0014] A further improvement is that: the workpiece support frame is arranged tilted.

[0015] A further improvement is that the printing accuracy of the 3D printing device is 0.01-0.5mm.

[0016] A further improvement is that: a plurality of the machine tools are arranged on the side of the FMS production line robot.

[0017] A further improvement is that the cache is used to store workpieces to be processed.

[0018] A further improvement is that the FMS production line robot is used to carry parts processed by machine tools, parts in the line-side warehouse, and parts turned over on the turning table.

[0019] A further improvement is that the robot fixture table is used for the robot to clamp different workpieces and clamp workpieces from different directions.

[0020] By adopting the aforementioned technical solution, the beneficial effects of the utility model are as follows: the present invention combines the 3D printing device with the FMS flexible production system, and improves the problem of manual replacement when replacing the workpiece support frame, so that the flexible production line can automatically replace the workpiece support frame when processing new products, avoiding line stop for manual point debugging, saving manpower and material resources, and adapting the visual recognition system to identify the degree of wear of the workpiece support frame and replace the damaged workpiece support frame in time. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the structure of the mechanical arm of an embodiment of the utility model.

[0022] Figure 2 It is a structural schematic diagram of the maintenance and update process of the workpiece support frame in an embodiment of the utility model.

[0023] Figure 3 It is a schematic structural diagram of a conventional flexible wire in an embodiment of the utility model.

[0024] Figure 4 It is a schematic diagram of the structure of a flexible manufacturing tooling system based on 3D printing and visual recognition algorithms in an embodiment of the utility model.

[0025] Explanation of the accompanying drawings: 1. Robotic arm; 2. Workpiece support frame; 3. Workpiece; 4. Visual recognition device; 5. 3D printing device. DETAILED DESCRIPTION

[0026] The utility model is now further described in conjunction with the accompanying drawings and specific embodiments.

[0027] refer to Figure 1-Figure 4 As shown, the embodiment of the utility model discloses a flexible manufacturing tooling system based on 3D printing and visual recognition algorithms.

[0028] FMS production line, the FMS production line is equipped with a series of conventional operating equipment such as a robot arm 1, a workpiece support frame 2, a workpiece 3, a machine tool, a buffer library and a turning table;

[0029] Add 5 light-curing 3D printing devices to the FMS production line;

[0030] The FMS production line robot fixture table adds a fixture for clamping the printing bracket;

[0031] The 3D printing device is installed in the FMS production line.

[0032] refer to Figure 2 and Figure 4 As shown, the FMS production line robot is equipped with a visual recognition device 4, which is fixedly installed at the front end of the robot arm 1. There are mature algorithms for visual recognition, which can be directly applied to this patent (FMS production line robots conventionally use manipulators, and may also be stackers / AGV robots, etc., with multiple options, and all of them are existing mature equipment).

[0033] Furthermore, the workpiece support frame 2 is tilted to facilitate the front end clamping of the robot arm 1 (the workpiece support frame 2 can also be placed flat according to actual use, and the placement angle can be changed as needed). The workpiece support frame 2 is 3D printed, and it can be processed by simply importing the design model into the control system. The processing cost is only the material cost, which is relatively low in price compared to machining, and has a high degree of automation. It can be processed by simply importing the design model into the control system, and the model can be automatically aligned. The cumbersome machining, alignment, and line running tests are simplified to one step of inputting the model and issuing tasks, which reduces labor costs, improves production efficiency after replacing parts, and makes the connection more compact when replacing different products, and does not require additional steps, such as processing the finished workpiece 3 for alignment, etc., to avoid additional material waste. Each surface of the workpiece 3 on the workpiece support frame 2 is irregular, and a support frame is needed to support it when placed. This support frame is called the workpiece support frame 2.

[0034] Furthermore, the printing accuracy of the 3D printing device 5 is 0.01-0.5mm. The 3D printing device 5 is light-cured, and the printing accuracy is 0.01-0.5mm, which meets the accuracy requirements of the workpiece support frame. The consumables are photosensitive resins, and the price is 0.09 yuan / gram, which is low. There is now a mature printing technology. The 3D printing device 5 is applied to the flexible manufacturing tooling system, and is adapted to the visual recognition device 4. When the workpiece 3 needs to be changed or the workpiece support frame 2 is damaged, the workpiece support frame 2 can be automatically replaced without human intervention. The operator only needs to configure the production process in the control system and issue the production plan. All robot / production operations are controlled by the control system, and there is no need for manual replacement of workpieces or tooling fixtures.

[0035] Furthermore, there are multiple machine tools located on the side of the FMS production line robot. Depending on the actual situation, it is selected to set it on that side of the FMS production line robot, or on both sides.

[0036] Furthermore, the cache library is used to store workpiece 3 to be processed. The complete processing flow of a workpiece 3 may require the use of multiple machine tools with different functions, number 1 to 4 (if there are multiple machine tools with different functions on the FMS production line, they will operate according to the flow of multiple machine tools with different functions). For example, after the processing of machine tool 2 is completed, there are other workpiece 3 being processed in machine tool 3. The robot will take out the workpiece 3 of machine tool 2 to the line side library and wait until machine tool 3 is idle before putting the workpiece 3 in for processing. The cache library achieves the effect of caching and temporarily storing workpiece 3.

[0037] Furthermore, the FMS production line robot is used to carry parts processed by machine tools, parts in the line-side warehouse, and parts flipped on the flip table. In order to turn over the workpiece 3, it is not the flip table that flips the workpiece 3, but the robot places the workpiece 3 on the flip table from the front, replaces the fixture, and then clamps it from the side, thereby achieving the effect of turning over the workpiece 3.

[0038] Furthermore, when the robot clamps different workpieces 3 and clamps workpieces 3 from different positions, different clamps need to be installed on the robot arm. The robot clamp table is used to place the clamps, and the robot automatically replaces the required clamps.

[0039] Example of implementation method

[0040] A light-curing 3D printing device 5 (with a printing accuracy of 0.01-0.5 mm) is added to the FMS logistics line for printing, and a workpiece support frame 2 is used for the flip table and the cache. A fixture for clamping the printing bracket is added to the robot fixture table of the logistics line.

[0041] The workflow of the flexible manufacturing tooling system based on 3D printing and visual recognition algorithm is as follows. Figure 2 As shown:

[0042] 1. When the production plan is changed, the product model is imported into the system;

[0043] 2. The system generates a new workpiece support frame 2 based on the calculation of the new product model and sends the 3D printing task to the 3D printing device 5;

[0044] 3. The 3D printing device 5 prints a workpiece support frame 22 that conforms to the structure of the new workpiece 3 according to the task;

[0045] 4. Replace the workpiece support frame 2 onto the workbench before a new workpiece arrives at the process;

[0046] 5. The system monitors whether the tooling has been used up in the production line. If the tooling has been used up, the visual recognition device 4 will detect the degree of wear of the workpiece support frame 2. If the workpiece support frame 2 exceeds the wear threshold or is damaged, the maintenance and update process of the workpiece support frame 2 will be entered;

[0047] 6. The production line starts producing new products.

[0048] Flexibility: Process personnel only need to set up the process flow and production plan of different products in the system and upload the model file of new products to achieve the process independence of each workstation, ensure that each product can be produced under a specific process environment, and alternate between old and new products. The system can analyze the production plan, calculate the model of the new product to generate a bracket model and print it, complete the configuration of the new product workpiece support frame 2 when the logistics line is idle, and ensure the rapid alternation of old and new products. It can meet the customer's requirements for personalization, customization, and timeliness;

[0049] High efficiency: The task of replacing a new product can be issued while the current product is being processed. One production line can process multiple workpieces at the same time, avoiding the waiting time caused by replacing fixtures and pallets, and making the connection more compact when replacing different products.

[0050] Intelligence and self-repairability: The production line has a certain degree of self-repairability. The robot has visual recognition function. If the workpiece support frame 2 is damaged, the system can replace it through 3D printing and alarm. Ensure that the flexible line cannot operate normally. A dark factory with higher stability can be achieved.

[0051] Workpiece support frame 2 maintenance and update process, refer to Figure 2 As shown:

[0052] 1. The system sends the 3D printing task of the workpiece support frame 2 that needs to be replaced to the 3D printing device 5;

[0053] 2. The 3D printing device 5 prints a workpiece support frame 2 that conforms to the workpiece structure according to the task;

[0054] 3. Replace the workpiece support frame 2 onto the workbench before the workpiece reaches the process;

[0055] The modifications and changes made using this creation are all within the patent scope claimed by this creation, and are not limited to those disclosed in the embodiments.

Claims

1. A flexible manufacturing tooling system based on 3D printing and visual recognition algorithm, characterized by: include: An FMS production line, wherein the FMS production line is provided with a mechanical arm (1), a workpiece support frame (2), a workpiece (3), a machine tool, a buffer library and a turning table and operating equipment; Adding a light-curing 3D printing device to the FMS production line; The FMS production line robot fixture table adds a fixture for clamping the printing bracket; The 3D printing device is arranged in the FMS production line.

2. The flexible manufacturing tooling system based on 3D printing and visual recognition algorithm according to claim 1, characterized in that: The FMS production line robot is adapted to be equipped with a visual recognition device (4), and the visual recognition device (4) is fixedly mounted on the front end of the mechanical arm (1).

3. The flexible manufacturing tooling system based on 3D printing and visual recognition algorithm according to claim 2 is characterized in that: The workpiece support frame (2) is arranged tilted.

4. The flexible manufacturing tooling system based on 3D printing and visual recognition algorithm according to claim 3 is characterized in that: The printing accuracy of the 3D printing device is 0.01-0.5mm.

5. The flexible manufacturing tooling system based on 3D printing and visual recognition algorithm according to claim 4 is characterized in that: The machine tools are arranged in plurality on one side of the FMS production line robot.

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