abstract
Machining technology is an important means to realize product design, ensure product quality and save energy and reduce consumption. In this paper, the processing technology of CA6 140 lathe rear bracket is studied. First of all, through the analysis of the part drawing, we can understand the structural form of the workpiece and make clear the specific technical requirements, so as to choose the appropriate processing method for each component surface of the workpiece. Then a more reasonable process specification is drawn up, which fully embodies the unity of quality, productivity and economy.
Machine tool fixture design is an important part of process equipment design. In the whole machining process, the fixture not only clamps and fixes the machined parts, but also ensures the position accuracy of the machined parts and improves the machining productivity.
In the design process, this topic goes deep into the actual production, conducts investigation and study, absorbs advanced technology at home and abroad, formulates a reasonable design scheme and carries out specific design.
Keywords product design, rear bracket, processing technology, fixture
abstract
Machining technology is an important means to realize product design, ensure product quality, save energy and reduce consumption. In this paper, the machining process of CA6 140 lathe rear bracket is studied. Firstly, through the analysis of the part drawing, the structural form of the workpiece is understood, and the specific specifications are defined, so as to select the appropriate processing method for each component surface of the workpiece. Then draw up a more reasonable process flow, which fully embodies the unity of quality, productivity and efficiency.
The fixture design of machine tool is an important part of process equipment design. In the whole processing process, the fixture not only clamps and fixes the machined parts, but also ensures the position accuracy of the machined parts and improves the processing productivity.
In the design process, this topic goes deep into the actual production, conducts investigation and study, absorbs advanced technology at home and abroad, formulates a reasonable design scheme and carries out specific design.
Keywords displaced product design, rear bracket, processing technology, fixture
Translation of foreign documents
Original text:
3.4. 1CAD hardware
computer
There are two main types of hardware used in CAD systems. Computers and input and output devices. In the early days of CAD. Some commercial CAD systems use proprietary computers. Today, almost all CAD software runs on general-purpose computers.
Depending on the complexity of the CAD software package, it may need a large computer, a small computer or just a microcomputer. Generally speaking, the more functions a CAD system provides, the more powerful the computer needs. Three-dimensional solid modeling needs more calculation than two-dimensional drawing system; Therefore, they need more powerful computers. Systems that integrate engineering analysis or simulation packages are usually more computationally intensive. A powerful computer can not only accelerate the response speed of CAD system, but also support multiple users without significantly reducing performance.
Translation:
3.4. 1CAD hardware
computer
There are two main kinds of hardware used in CAD system, computers and input and output devices. In the early days of CAD, some commercial CAD systems were used on professional computers. Now almost all CAD software is used in general-purpose computers.
Depending on the complexity of CAD commands, you may need a large computer, a mini computer, or just a micro computer. Generally speaking, CAD systems provide better functions and need stronger computers. Three-dimensional space modeling needs a better computer than two-dimensional linear modeling; Therefore, they need more powerful computers. This makes the overall analysis of the system or the calculation of general simulation commands more and more powerful. A powerful computer can not only accelerate the operation of CAD system, but also support multiple users without reducing performance.
Several other parameters and the composition of the computer must be considered.
Random access memory capacity
[Contents]
abstract
Abstract Ⅱ
1 CA6 140 Machining Process Design of Lathe Rear Support 3
1. 1 CA6 140 structural characteristics and technical requirements of lathe rear support 3.
1.2 CA6 140 lathe rear bracket material, blank and heat treatment 3
1.2. 1 blank material and heat treatment 3
1.2.2 structural determination of blank 4
1.3 main problems to be considered in process design 4
1.3. 1 processing method selection principle 4
1.3.2 Division of processing stages 4
1.3.3 Reasonable combination of working procedures 5
1.3.4 Arrangement of processing sequence 5
Processing Technology Analysis of 1.4 CA6 140 Lathe Rear Support 5
1.4.1ca6140 Analysis of Parts Drawing of Lathe Rear Support 5
1.4.2 CA6 140 Machining Process Route of Lathe Rear Support 7
Process design of 1.5 CA6 140 lathe rear support 12.
1.5. 1 Select process benchmark 12
1.5.2 Determination of process size 12
1.5.3 Determination of machining allowance 14
1.5.4 Determine the processing equipment and process equipment of each process 15
1.5.5 Determine cutting parameters and man-hour quota 16
2 Special fixture design 26
2. 1 Design of milling plane fixture 26
2. 1. 1 research original materials 26
2. 1.2 Selection of positioning datum 26
2. 1.3 Analysis and calculation of cutting force and clamping force 26
2. 1.4 Error analysis and calculation 27
2. 1.5 Brief introduction of fixture design and operation 28
2.2 Fixture Design for Drilling Three Rod Holes 28
2.2. 1 study of original materials 28
2.2.2 Selection of Positioning Datum
2.2.3 Calculation of Cutting Force and Clamping Force 29
2.2.4 Error Analysis and Calculation 30
2.2.5 Brief introduction of fixture design and operation 3 1
2.3 Fixture design for drilling bottom hole 3 1
2.3. 1 research original materials 3 1
2.3.2 Selection of Positioning Datum 3 1
2.3.3 Calculation of cutting force and clamping force 3 1
2.3.4 Error analysis and calculation
2.3.5 Brief description of fixture design and operation 33
Conclusion 34
Reference 35
Thanks 36
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