The quality of the welding process and the accuracy of the Petrol Car welding fixture directly affect the welding quality, which is related to whether welding will occur during the use of Honda Car in the future, thereby affecting the safety of Honda Car. With the continuous updates of Honda Car manufacturers and the acceleration of vehicle models, welding fixtures for Petrol Car have developed rapidly. In order to improve the design level of Petrol Car welding fixtures and understand the classification, structure, design process and principles of Petrol Car welding fixtures, a brief introduction is given here.
The Petrol Car welding fixture mainly consists of the fixture base plate, positioning device, clamping mechanism, measurement system and auxiliary system. A complete fixture consists of base plate, tripod, positioning block, clamping mechanism, fixture connector and other components.
1. Receive the client's style manual, define the design tasks, and collect the information required for the design. The design of the Petrol Car welding fixture is to carefully study the design requirements put forward in the style book, clarify the design tasks, and collect the following information: workpiece information, welding gun information, welding methods and technical requirements, etc., based on the premise of clarifying the customer's production goals. The total number of solder joints and the distribution location of the solder joints on the workpiece, and understanding of the site size, fixation method, workshop production conditions, air pressure and voltage, lifting forklift and other transportation capabilities, water and gas supply, and technical level that the customer can provide. Understand the operating habits and rigid requirements of the customer's staff, and whether the customer has its own standard library, such as safety levels, styles of bolts and positioning pins, etc.
2. Draw concept drawings according to design requirements. According to the requirements of the sample book, determine the position of the datum pin and positioning surface, and consider the convenience of workers' operation, as well as the flow direction of the front and rear workstations, the space for picking up and placing workpieces, etc. Draw concept diagrams, determine the direction and method of action, and control the size of components.
3. Mark the part numbers and draw a parts list. When marking the part number, the standard room can directly mark the national standard number. The detailed list should indicate the name, number, serial number, part name, material, quantity, etc.
4. Draw parts diagram. When drawing parts, you must first find the processing benchmark to prevent the accumulation of processing errors. Provide reasonable processing accuracy and tolerances to reduce processing costs as much as possible. Dimension chain problems are common during machine design and manufacturing. In the process of assembling parts into a machine, the relative dimensions of the parts are combined and accumulated. Because there are manufacturing errors in the dimensions of parts, errors will be synthesized and accumulated during assembly. The accumulated total error will affect the working performance and quality of the machine, which forms an interaction between the dimensional error and the comprehensive error of the part. Designing the fixture is no exception. It is very important to reasonably determine the dimensional tolerance and shape tolerance of the part. .
1. Receive the client's style manual, define the design tasks, and collect the information required for the design. The design of the Petrol Car welding fixture is to carefully study the design requirements put forward in the style book, clarify the design tasks, and collect the following information: workpiece information, welding gun information, welding methods and technical requirements, etc., based on the premise of clarifying the customer's production goals. The total number of solder joints and the distribution location of the solder joints on the workpiece, and understanding of the site size, fixation method, workshop production conditions, air pressure and voltage, lifting forklift and other transportation capabilities, water and gas supply, and technical level that the customer can provide. Understand the operating habits and rigid requirements of the customer's staff, and whether the customer has its own standard library, such as safety levels, styles of bolts and positioning pins, etc.
2. Draw concept drawings according to design requirements. According to the requirements of the sample book, determine the position of the datum pin and positioning surface, and consider the convenience of workers' operation, as well as the flow direction of the front and rear workstations, the space for picking up and placing workpieces, etc. Draw concept diagrams, determine the direction and method of action, and control the size of components.
3. Mark the part numbers and draw a parts list. When marking the part number, the standard room can directly mark the national standard number. The detailed list should indicate the name, number, serial number, part name, material, quantity, etc.
4. Draw parts diagram. When drawing parts, you must first find the processing benchmark to prevent the accumulation of processing errors. Provide reasonable processing accuracy and tolerances to reduce processing costs as much as possible. Dimension chain problems are common during machine design and manufacturing. In the process of assembling parts into a machine, the relative dimensions of the parts are combined and accumulated. Because there are manufacturing errors in the dimensions of parts, errors will be synthesized and accumulated during assembly. The accumulated total error will affect the working performance and quality of the machine, which forms an interaction between the dimensional error and the comprehensive error of the part. Designing the fixture is no exception. It is very important to reasonably determine the dimensional tolerance and shape tolerance of the part. .