Service Hotlinescrew is a tool that uses the physical and mathematical principles of the circular rotation and friction of an object to fasten the mechanism of the object step by step. A screw is a common term for fasteners, an everyday colloquial language. Screws are indispensable industrial necessities in daily life: tiny screws used in cameras, glasses, clocks, electronics, etc.; general screws in televisions, electrical products, musical instruments, furniture, etc.; as for engineering, construction, and bridges, large screws are used. Screws and nuts; transportation equipment, airplanes, trams, automobiles, etc. are used together with large and small screws. Screws have important tasks in industry. As long as there is industry on earth, the function of screws will always be important. The screw is a common invention in people's production and life for thousands of years. According to the application field, it is a great invention of human beings.
through-hole mounting nut, comprising a hexagonal portion 1 and a cylindrical portion 2, a threaded hole 3 is provided between the hexagonal portion 1 and the cylindrical portion 2, and two grooves 4 are opened on the cylindrical portion 2, and each of the two sides of the groove 4 has a The raised side 5, the two sides protruding from the sheet metal part 7, if squeezed or hit by the bolt 8, it will bend to both sides and buckle on the sheet metal part, so that it is not welded directly. Rubber can also be used. Each of the upper surfaces of the side edges 5 is provided with a convex point 6 so that the hammer will not slip when hitting.
A pin and a pin piece inserted on the pin, the width of the pin piece gradually decreases from the insertion end to the other end, and the pin piece is also provided with a protrusion, the protrusion is a triangular ratchet tooth shape, the An insertion hole is arranged on the pin, and a pawl corresponding to the protrusion is arranged in the insertion hole.
After the centrifugal fan blade is assembled in the square cabinet, it needs to be fixed with nuts. The components needed to fix the centrifugal fan blades are gaskets, washers and nuts. During the operation, it is necessary to assemble the gasket, washer and nut in sequence, then drip the fastening glue, and then fix it.
In machine tool processing, it is often necessary to calibrate and debug the probe. The method of manually correcting the detection is inefficient and the accuracy is unstable. In addition, accidents such as collisions will occur. However, calibration tools such as ring gauges are expensive, have large working strokes and poor versatility. Technical realization elements: In view of the above content, it is necessary to provide a positioning pin for probe calibration to solve the above problems. A positioning pin is used for calibrating a probe, the positioning pin includes a connected cylinder and a cylinder, the cylinder is used to be installed on a jig in a machine tool, and the end of the cylinder away from the cylinder is provided with a measuring hole to calibrate the probe. Further, the positioning pin is also provided with a chip removal hole, one end of the chip removal hole is connected to the measuring hole, the other end of the chip removal hole penetrates the end of the cylinder away from the cylinder, and the chip removal hole is used for discharging machining chips and cutting fluid. Further, the diameter of the chip removal hole is smaller than the diameter of the measuring hole. Further, the positioning pin further includes a positioning piece, the positioning piece includes a base and a magnetic piece, one end of the base is provided with a mounting hole for installing the magnetic piece, and the other end of the base is provided with a limiting hole for mounting the column. Further, the limiting hole communicates with the mounting hole. Further, the limiting hole is a blind hole. Further, the diameter of the cylinder is larger than the diameter of the cylinder. Further, the measuring hole is a cylindrical hole. Further, the diameter of the cylindrical hole is 4 mm. Further, the end face of one end of the cylinder provided with the measuring hole is a curved surface, and the end faces the peripheral wall of the cylinder to bend and transition to connect the peripheral wall. The positioning pin of Guangdong Yueluo Hardware Industry Co., Ltd. uses the measuring hole to carry out the probe. It is easy to operate, simple in structure and highly versatile. BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view of a positioning pin of an embodiment of Guangdong Yueluo Hardware Industry Co., Ltd. FIG. 2 is a three-dimensional schematic view of the positioning pin shown in FIG. 1 without a positioning member. FIG. 3 is an exploded schematic view of the positioning pin shown in FIG. 1 . FIG. 4 is a cross-sectional view of the positioning pin shown in FIG. 1 along the line IV-IV. Description of main components and symbols Locating pin 100 Cylinder 10 Measuring hole 11 Chip removal hole 12 Cylinder 20 Positioning piece 30 Base 32 Mounting hole 321 Limiting hole 323 Magnetic piece 34 The following specific embodiments will be further described in conjunction with the above drawings Guangdong Yueluo Hardware Industrial Co., Ltd. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The technical solutions in the embodiments of Guangdong Yueluo Hardware Industry Co., Ltd. will be clearly and completely described below with reference to the accompanying drawings in the embodiments of Guangdong Yueluo Hardware Industry Co., Ltd. Obviously, the described embodiments are only Some examples of Guangdong Yueluo Hardware Industry Co., Ltd. are not all examples. Based on the embodiments in Guangdong Yueluo Hardware Industry Co., Ltd., all other embodiments obtained by those of ordinary skill in the art without creative work belong to the protection scope of Guangdong Yueluo Hardware Industry Co., Ltd. It should be noted that when an element is referred to as being connected to another element, it can be directly connected to the other element or intervening elements may also be present. When an element is referred to as being disposed on another element, it can be directly disposed on the other element or intervening elements may also be present. Unless otherwise defined, all technical and scientific terms used herein are related to those of Guangdong Yueluo Hardware Industry Co., Ltd.
We have many years of experience in the production and sales of screws, nuts, flat washers, etc. The main products are: white-plated screws, thin flat washers, internal and external anti-loose flat washers, GB867 stainless steel rivets and other products, we can provide you with suitable fastening products piece solution.
