Autodesk Inventor is very close to the requirements of special machine tool design fixtures. From the initial fixture solution to the detailed design of the parts, to the completion of the design of the entire product, Inventor software and design fixture work very well, effectively improving work efficiency. —— Feng Jinyun, engineer of Nanjing Juxing Machinery Equipment Co., Ltd.

Nowadays, professional mechanical users have put forward higher and higher requirements for the quality and delivery cycle of mechanical product design. Professional mechanical design manufacturers have begun to feel that many problems cannot be solved in the previous two-dimensional design environment. In order to keep up with the development of customer needs and improve design efficiency, they began to look to new design solutions. Recently, Nanjing Juxing Machinery Equipment Co., Ltd. encountered such a thorny problem when it took over a new design project.

Two-dimensional problem that is difficult to solve

The company recently received the auto parts assembly machine project of Wuhan Disengke Bobo Chassis Co., Ltd. The company noticed that the machined parts provided by the user were three-dimensional data (iges files) designed abroad, and required that the company must provide the design data of the three-dimensional combined machine tool within the specified time.

This makes the company's engineers feel a bit tricky. Because the company has been designing fixtures in a two-dimensional environment in the past, facing the unexpected three-dimensional data requirements, some unsolvable problems are particularly prominent.

The first problem that is exposed is that the machined part is three-dimensional. In the design, the machined surface, the positioning axis, and the support point must all be three-dimensional, so it is difficult to express it intuitively in the existing two-dimensional design environment. Engineers need to spend a lot of time drawing to accurately represent the fixture model.

Secondly, because the design process of the fixture is a process of continuous verification and continuous improvement, if it is designed in a two-dimensional environment, whenever it encounters a problem of improving the design, it must be completely redesigned, and the previous work diagram cannot be utilized at all. This greatly reduces the efficiency of the design work.

In addition, due to the complexity of the mechanism of the special machine tool and the movement of the mechanism, the special fixture design is an important part of the machine tool design. Due to the constraints of the two-dimensional software environment, some problems can only be discovered when the site is installed. This is likely to delay the company's delivery cycle and bring losses to the company.

Autodesk Inventor offers solutions

After the leaders and technical backbone of Juxing Company realized the problem, they approved the solution provided by Autodesk through the demonstration and technical exchange of the pre-sales engineers of Auotdesk, and chose Inventor to improve the software design environment.

They transferred the 3D model data provided by the customer to the Inventor environment, making full use of Inventor's working axis and working edge functions, and conveniently and quickly found the machined surface, the positioning axis of the fixture and the key fixture support positioning points. These factors are critical to fixture design.

Then, using Inventor to support the sketch to participate in the assembly function, through the found processing surface, positioning axis and support positioning points, the final spatial position of the hydraulic and pneumatic components in the clamping was preliminarily determined, and the preliminary fixture design was completed.

After the initial plan is determined, in the three-dimensional environment of Inventor, the required hydraulic and pneumatic components and their spatial position on the fixture site are continuously calculated and a three-dimensional model of the fixture assembly is established. The model at this time is a very intuitive representation of the complete three-dimensional information of the fixture assembly components.

Since the information of the Inventor 3D model is much richer than the information available in the 2D design, the resulting modified design is also very concise. At this point, if the fixture design changes, just modify some parameters in Inventor, and then redesign under the new scheme. The rationality of the entire design is determined by reviewing basic coordination, mechanism motion simulation, and part analysis. After the completion of the audit, the parts including the undercut, the parts weight reduction and other parts of the relevant refinement design. Finally, the projection is used to generate the drawing. The results show that the entire drawing is in full compliance with customer requirements. All the drawings have added axis side diagrams to specifically and intuitively express the three-dimensional information of the product.

Autodesk Inventor delivers results

Autodesk Inventor is a size-driven solid modeling system that uses structured techniques, including sketching 2D interface outlines and stretching, rotating, and sweeping sketches to form solid models.

The details of the Inventor environment using the Inventor environment to clamp the parts in the simulation fixtures reflect the function of interference checking in the Inventor environment, solving the problems that the previous two-dimensional design can not solve, realizing the design and production, on-site installation once. Sexual success. By reducing many of the unnecessary errors in the design process, the engineer's design efficiency is greatly improved, allowing engineers to focus more on the design itself.

It can be said that Juxing chose to use Inventor to upgrade the design environment and it was very successful. The company's leaders and engineers have fully experienced the convenience and efficiency of Autodesk solutions, and have delivered real benefits to both the enterprise and the user by providing users with high-performance design products that meet the requirements. The leader of Juxing said that it will continue to expand the breadth and depth of Inventor's application in the technical department in the future, in order to further enhance the company's market competitiveness.

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