First habit: it is impossible to be a craftsman without the support and trust of employees. Through so long learning and accumulation, you should reach the following technical levels and requirements:
1. Familiar with the structure and process characteristics of drilling, milling, boring, grinding and planing machines
2. Familiar with the properties of processed materials.
3. Solid basic knowledge of tool theory, master the conventional cutting parameters of tools, etc.
4. Be familiar with the process specifications and guidelines of the enterprise, the general requirements that can be met by various processes, and the process route of conventional parts. Reasonable material consumption and working hour quota.
5. Collect a certain amount of data on tools, machine tools and machinery standards. In particular, be familiar with the tool system used by CNC machine tools.
6. Be familiar with the selection and maintenance of coolant.
7. Have a common sense understanding of relevant types of work. Such as casting, electrical machining, heat treatment, etc.
8. Have a good fixture foundation.
9. Understand the assembly requirements and use requirements of machined parts.
10. It has a good foundation of measurement technology.
Second habit: proficient in numerical control programming and application of computer software. In practice, the standard of a good procedure is:
1. It is easy to understand and organized, and everyone can understand it.
2. The fewer instructions in a program segment, the better. It aims at simplicity, practicality and reliability. From the perspective of programming, I think that the instructions are G00 and G01, and the others are auxiliary instructions, which are set for convenience of programming.
3. Easy to adjust. When the machining accuracy of parts needs to be fine tuned, there is no need to change the program. For example, if the tool is worn and needs to be adjusted, just change the length and radius in the tool offset table.
4. Easy to operate. The program shall be compiled according to the operating characteristics of the machine tool, which is conducive to observation, inspection, measurement and safety. For example, for the same part with the same processing content, the procedures must be different for vertical processing and horizontal processing. In machining, the simplest method is the method of. As long as colleagues with practical experience will agree with this sentence!
Third habit: proficient in CNC machine tools. This requires 1-2 years of study, and the operation pays attention to the feel. Beginners, especially college students, know how to do it, but their hands just don't obey. In this process, you need to learn: system operation mode, fixture installation, part benchmark alignment, tool setting, zero point offset setting, tool length compensation, radius compensation, tool and handle loading and unloading, tool grinding, part measurement (proficient in using vernier caliper, micrometer, dial indicator, dial indicator, inner diameter lever gauge), etc. Zui can reflect the level of operation: horizontal processing, and large gantry (moving beam, top beam) processing,. The practice of operation requires understanding! Sometimes there is a kind of artistic conception of "leisurely heart meeting, beauty is difficult to say with you"! In the CNC workshop, you can calm down and practice well! Generally speaking, the process from the machining of the first part to the qualified machining accuracy requires the NC programming technician to complete it personally. If you can't operate the machine skillfully, you can't pass this pass.
The fourth habit: must have a good foundation of tooling and fixtures and a good level of measurement technology. The difficulty of cause analysis in fixture is that it is only qualitative and difficult to quantify. If you have no experience in fixture design and part clamping, it will be very difficult. For the study in this respect, it is recommended to consult the technicians who do precision coordinate boring machines. One of the basic skills of machining is to be able to skillfully use vernier caliper, micrometer, dial indicator, dial indicator, inner diameter lever gauge, caliper, etc. Sometimes, in the processing of parts, CMM is not expected.
Fifth habit: familiar with CNC machine tools. Proficient in the maintenance of CNC machine tools. To be familiar with CNC machine tools, you should:
1. Familiar with CNC electrical components and control principle. Can say the names and functions of various components in the electrical box, and understand the electrical schematic diagram. It can find out the alarm content according to the electrical alarm number.
2. Understand the structure and transmission principle of ball screw. Know which factors have a greater impact on the accuracy of the machine tool.
3. Understand the structure of the bearings at both ends of the screw rod of the machine tool and its impact on the accuracy of the machine tool.
4. Understand the lubrication system of the machine tool (bearings, main shafts, moving pairs, gear boxes, etc.), and know the distribution of lubrication points. Brand of machine tool lubricating oil and normal consumption of oil weekly or monthly.
5. Understand the cooling system of the machine tool: cutting (water, air) cooling, spindle cooling, electric box cooling, etc
6. Understand the main transmission structure of the machine tool and the specific data characteristics between the speed and torque of each machine tool.
7. Understand the characteristics of the machine tool guide rail pair: is it a wire rail or a slide rail, and how rigid (load-carrying capacity)?
8. It can eliminate common operation faults (such as over limit, tool number error of tool magazine, etc.)
9. Proficient in various accuracy (static and dynamic) indicators and detection methods of machine tools.
10. Familiar with tool magazine mechanism and tool changing principle.
I'm afraid it's difficult to meet the requirements without more than 3 years of exercise in the above items. Moreover, many enterprises do not have the conditions for learning. It is recommended to consult the master of the equipment maintenance department. Hebei Daheng Heavy Machinery Co., Ltd. was established in 1978 with a registered capital of 25 million yuan. It is a CNC machine tool manufacturing enterprise with the self-supporting import and export right of CNC machine tools, specializing in the R & D, production, sales and after-sales service of CNC gantry milling machines and friction stir welding equipment. We can provide customers with product processing solutions. We can also provide machining center operation training services for customers. Hebei Daheng Heavy Machinery Co., Ltd. covers an area of 84000 square meters. The old factory covers an area of 24000 square meters of standardized workshops, including 20000 square meters of casting workshops, 10000 square meters of processing workshops, 2500 square meters of heat treatment workshops and 3000 square meters of finished product warehouses. 3500 square meters of auxiliary rooms and 3500 square meters of office buildings. It has 220 employees, 76% of whom have college degree or above, and 15 R & D teams, including 8 engineers. It is one of the private technology enterprises in Hebei Province. Hebei Daheng Heavy Machinery Co., Ltd. has not only won a good reputation for the enterprise, but also brought high-speed development for the enterprise by virtue of honest management, excellent production quality, strict scientific management, advanced marketing concepts and perfect inspection methods.