Fixtures can be classified into three types: process assembly fixture, engineering test fixture and circuit board test fixture. Process assembly fixture includes assembly fixture, welding fixture, disassembly fixture, dispensing fixture, irradiation fixture, adjustment fixture and shearing fixture. The project test fixture includes life test fixture, package test fixture, environmental test fixture, optical test fixture, shielding test fixture, sound insulation test fixture, etc. Circuit board test fixture mainly includes ICT test fixture, FCT function fixture, SMT furnace fixture, BGA test fixture, etc.
3。 Uses have been widely used before the industrial age, including mechanical fixtures, woodworking fixtures, welding fixtures, jewelry fixtures and other fields. Some types of fixtures are also called "molds" or "auxiliary tools", and their main purpose is to duplicate and accurately copy a part. An obvious example is that when copying keys, the original key is usually fixed on the fixture, so that the machine can copy the new key through the guidance of the appearance of the original key.
Many fixtures are produced for business needs, because many types of fixtures are customized, and some are designed to improve productivity, repeat specific actions, or make work more accurate. Because the fixture design is basically based on logic, similar fixtures may be produced separately because of different time and place of use.
The jig is a fixture type that can guide torsional drilling equipment or other drilling devices to the exact center position of each hole by moving the mold, and can accelerate the repeated positioning of the hole center on multiple interchangeable parts. In the practice of iron products, the typical practice is to leave hardened bushings in each hole on the drilling fixture to avoid twisting the drilling and cutting fixture.
Because numerical control machine tools (CNC) are widely used in manufacturing industry, in which servo control has the ability to automatically move the tool to the correct position, the demand for drilling fixtures (and the work of operators using drilling fixtures) is less than before.
The main purposes of the furnace fixture are:
Question 2: What is the specific difference between a fixture and a mold? In the stamping industry, some steps (such as cutting, local forming or bending) that cannot be completed at one time when stamping products with dies are completed with fixtures. First, the raw material strip is stamped by the mold, and then the stamped product strip is stamped (cut, partially formed or bent) by the fixture, so as to get the products that customers want. This is the relationship between fixture and mold. If there is a difference, I can only answer you this way: the mold has many stations, from a few to dozens, while the fixture has only one or two stations.
Question 3: What does the fixture in machinery factory mean? Does anyone know? Fixture is a tool for carpentry, ironwork, locksmith, machinery, electric control and other handicrafts, mainly as a tool to help control position or action (or both). Fixtures can be divided into three types: process assembly fixture, project test fixture and circuit board test fixture. Process assembly fixture includes assembly fixture, welding fixture, disassembly fixture, dispensing fixture, irradiation fixture, adjustment fixture and shearing fixture. The project test fixture includes life test fixture, package test fixture, environmental test fixture, optical test fixture, shielding test fixture, sound insulation test fixture, etc. Circuit board test fixture mainly includes ICT test fixture, FCT function fixture, SMT furnace fixture, BGA test fixture and CCD test fixture.
Question 4: What is a fetal tool? There are two kinds: fixtures and fixtures.
The specific encyclopedia is very detailed.
Fixture: baike.baidu/view/302194? fr = ala 0 _ 1
Fixture: baike.baidu/view/689021? fr = ala 0 _ 1 _ 1
Question 5: What is a fixture? The exact definition of the fixture has not been found (there is no need to pursue it, it is enough to know what it is). I think it is an auxiliary device specially made to solve practical problems or realize a certain function. It is characterized by simple structure, wide application and various types, which can be a piece of iron or a piece of equipment. For example, the stop of the grinder can be called a fixture; For example, the Hi-pot tester can be called a fixture. (Note: the noun comes from Japan and we call it fixture)
Fixtures in electronic industry can be roughly divided into press-in, bending, cutting, riveting, welding, testing and fixing. Of course, it can also be divided into ordinary and special categories, depending on personal preferences or professional secretaries. Basically, except for electrical measurement and welding, general factories have their own design departments or simply do it themselves. It can be asserted that where there are electronic factories, there are fixtures; Where there is no electronics factory, there are fixtures everywhere.
In a sense, fixture design can better train a person's ability to analyze and solve problems, while the design ability is relatively weak and secondary to more complex equipment such as automata. Why do you say that? There are two reasons:
1. The design of fixture is based on the principle of simplicity, ease of use and safety, which is reflected in the structure and workpiece. So knowing how to do it, from drawing to assembly to successful debugging, hardly requires much effort. However, the service object of fixture is usually difficult to handle products, which can not be automated and difficult to operate by hand. At this time, they often have headaches. If there is a problem, it is not the machine itself, but their lack of ability to analyze anomalies and identify and solve problems, they will be confused and deceived, and they will fidget and have hair like a hedgehog every day:)
In most factories (especially in Chinese mainland), the basic production process is still dominated by people, and fixtures play an auxiliary role. Because the structure is relatively simple, sometimes it is really nerve-racking to realize a "complex" function or solve some thorny problems, but the person in charge or other departments ignore these. They usually say, XXX, there are not many products on the production line, so you should get a fixture or improve the existing fixture. Simple solution, of course. If you are in trouble, you may have to test your ability to analyze and solve problems, and once you find the reasons and countermeasures, it takes less than two or three days to design a fixture because it is simple. Sometimes, the production line will take a lot of defective products to get even with you. If you can't find the "disproof", then you are either being a scapegoat in a daze, or it will take a while for the boss to find out the reason and then vomit blood.
2. Usually, when designing fixtures, it is not the machine itself, but the product or process that is considered most. No matter what you do, the cost of each fixture is not much different (the project cost is limited), even if you spend 30 thousand to 50 thousand more, the enterprise can accept it; If you have rich experience in products and processes, you can often know the opportunity, put forward improvements to the possible problems of products before production, and draw up a set of reasonable and efficient production plans, and then refine them to fixture production at each station, which can ensure cost control and efficiency improvement in the long run. This is what enterprises are most concerned about. There will be many schemes for the fixture with the same position, and sometimes it is necessary to comprehensively consider product characteristics, capacity requirements, cost control and other factors before it can be finally determined. In fact, this process is more of an analytical ability outside of machinery than a so-called design ability. In other words, an excellent fixture designer should be proficient in product, technology and design at the same time, otherwise the level will be lower, no matter how beautiful the drawing is, no matter how clever the fixture is. In fact, I believe that designers who don't understand products and processes can't make decent fixtures, and even cause trouble.
Of course, emphasizing the ability to analyze and solve problems other than machinery does not mean ignoring the function of machinery itself. On the contrary, mechanical designers must arm themselves with their design ability and level as the most basic and important "fist" and pay attention to constantly improving themselves in all aspects, otherwise they will easily fall behind. At least in many cases, they will often make excuses because of difficulties or incompetence: Boss, this thing is very difficult to do! In fact, the same problem may be overcome or solved by other manufacturers or others.
I always think that designers need to consider a lot of things when drawing up a design scheme, and a large part of them are outside the machinery. Today, mechanical technology has been developed. Why do you encounter all kinds of thorny problems, and why are some technical problems insurmountable? To a great extent, it is related to the fact that factors other than these machines are developing faster and changing with each passing day. For example, Motorola's requirements for mobile phone connector terminals have changed from the previous 0 ... > >
Question 6: What's the difference between a fixture and a mold? Please tell me. Of course, the fixture is also a tool for producing products, but its function is auxiliary. Do not directly participate in product molding. Supplement:
1.jigThe word "jigg" is directly translated from Japanese characters. Because the Japanese ruled Taiwan Province Province for a long time, Taiwan Province Province has become accustomed to the word "fixture". With a large number of Taiwanese businessmen entering the mainland, "Jig" has also landed in the mainland, so Jig is a typical foreign word. For example, an arc-shaped electrical product needs two screws, and the operator holds the product in his left hand and the batch in his right hand, so that the operation will be ok in a short time. If it takes a long time, employees will be overtired, and efficiency and quality will be reduced. At this time, the process engineer should consider making a fixture to assist the operation.
Common treatment methods include: automation equipment, fixtures, test fixtures, SMT furnace fixtures, precision parts, blades, DVD readers and so on.
2. Mold is a variety of models, templates and tools used for molding in industrial production.
In short, molds are tools used to shape objects, and there are many kinds of tools.
Different molds are composed of different parts. It mainly passes through
By changing the physical state of the molding material, the shape of the article can be processed.
Question 7: What is a fixture? Fixture is a large class of tools, which are used in carpentry, ironwork, locksmith, machinery, electric control and other handicrafts. It is mainly used as a tool to help control position or motion (or both). Because Taiwan Province Province was ruled by the Japanese for a long time, I got used to the word "fixture".
Question 8: What is a mold fixture? What's the difference between mold and mold treatment? Mold fixture is a general term for mold and fixture. Because most products need to be processed after mold forming, they need to be processed on machines, and machines need fixtures, so we need to evaluate how many mold fixtures need to be made when evaluating the production of a product, hence the name.
Question 9: The difference between fixtures and fixtures The two words "fixtures" and "fixtures" are often confused or even misused because of their similar usage.
Mainly as a tool to help control position or action (or both), focusing on work and guidance tools; Fixtures focus on fixing tools in a fixed position. Some equipment with two functions (controlling and guiding tools) is also called fixture, but the equipment that only clamps non-guiding tools is called "fixture" instead of "drilling die".
Question 10: What are jigs, fixtures and molds? Fixture, also known as fixture, is an auxiliary tool in the production process, such as fixture for oil filling, fixture for assembly and fixture for measurement. And mold design are not in the same category. I hope I can help you.