Not long ago, a brand of laptop ushered in a live broadcast, shocking a surprise netizen, even Xiaobian, my brand is also a grade, open the bottom case, the internal hardware structure is very neat Even the internal screws are also arranged in a line, but also a small compact understanding of the product. The horses are secretly labeled, and they can’t help but feel the screws in the electronic products of the mobile phone. What is the special place?
Today we come to find out, what mysterious is there in the screws of the notebook? Among electronic products such as mobile phones, computers, and watch, it is small, internal parts, and the screws used are naturally some small screws. It is even more than 0.5mm, which is generally called threaded outer diameter. A screw that is less than or equal to 3 mm is small, the production and manufacturing requirements are high, and this category is called a precision small screw.
Under normal circumstances, there are dozens of a notebook to hundreds of screws, distributed in all parts of the fuselage, motherboard, keyboard, etc., some even hidden, is not easy to find. Small screws mainly play a fixed role, generally screw head type includes round head cross grooves, a bolden cross groove, a half a bullhead cross slot, but there are still other head types, such as a word slot, hexagonal Slotted and inner hexagonal grooves, these three slots are also a lot of applications. In addition, there are some other uncommon groove types such as Y-shaped, triangular grooves, quad-square slots, etc.
Case or small cover interior screw
Such screws are mainly fixed, and the position is not very concealed, and the reason is easy to be ignored, because their screw mounting holes are generally designed, and the normal sight is difficult to find.
Body tail edge screw
Most users focus on the bottom cover when dismantling the notebook, and the screws on the edge of the fuselage are easily ignored. In the current notebook, the general lightweight and a relatively thick notebook will be installed on the tail of the fuselage.
There are also some screws that are not easy to show, in the bottom of the shell, the bottom of the hard disk or battery warehouse, the edge of the light-driven position, the easily shackles or keyboard, this screw is generally difficult to find, such as installation At the bottom shell shock absorbing rubber pad or rubber strip, mounted on the inner edge of the optical drive position, or mounted below the warranty and smash label. Due to the surface of these screws, it is difficult to find it without a past exploration.
The small screw is small, but there are applications in numerous electronic products. It can see its figure in the camera, cameras, robots, drones, etc..
In high-end electronics, the requirements for precision small screws are higher, which is not only required to be beautiful, and the screws, hardness, and dimensional requirements are high. And a good screw is inseparable, like these large screw manufacturers like the Olympic Exhibition, the threaded processing method mainly has thread cutting and threaded rolling.
Generally referring to a method for processing threads on a workpiece with a forming tool or abrasive, mainly turning, milling, tapping, sleeve, grinding, grinding and cyclone cutting. When turning, milling, and grinding threads, the workpiece rotates each turn, the transmission chain of the machine tool, the wheel, milling cutter or grinding wheel moves accurately and uniformly along the workpiece. When tapping or sleeve, the tool is relatively rotationally movement with the workpiece, and guided the tool to move as a cutter as a first threaded trench.
The molding rolling mold allows the workpiece to produce plastic deformation to obtain a process of processing threads, and is also a cold heading of the industry. The machine used in the production method is generally commonly used single mode machine, multi-station machine, composite machine, etc. In addition, the screw produced by this method is faster, the cost is lower, but relative to the cutting process, this process produced by the screw head is naturally molded, and the outer shape is round and not like The corner of the cutting process is very bright and beautiful appearance.
In the electronic product of the notebook, in addition to the screw size, accuracy, material and other requirements, more high-end, precision screws, small screws, large effects, no matter which field, screws are indispensable. Therefore, it is called “the first invention in the history of industrial history”.