Machinery industry – Page 83 – CNC Machining & Turning, Milling, Metal parts

Some decomposition of the rolling wheel

Also named: the pattern knife, the hobbing knife.
Application: rolling patterns on metal products or other work surfaces.
Types: straight knurling wheel, right twill knurling wheel and six knurling knives.
The knurling wheel determines its size by modulus. According to the national standard, the common specifications are 0.3, 0.4, 0.5, 0.6, 0.8, 1, 1.2, 1.5, 1.6, 1.8, 2.

How to strengthen the conversion rate of your product

The factors that determine the conversion rate are 1, 2, 3, 4, 5, and customer service.
Here is the focus of description! What does the description do?
Before making a description, please be clear about whether the product decides the operation or the operation decides the product. The operation decides the product will not be talked about. Generally, the product determines the operation.
The first step is to examine the style and understand the style of your product. Food (green, delicious, specialty and so on) women’s wear (Japan and South Korea, Europe, America, fashion, noble, temperament, lovely, lady and so on) men’s clothes (bodybuilding, handsome, Diao silk, fat and thin Tuo and so on) cosmetics (brand, efficacy, girls, packaging, etc.) digital class (price, quality, video, after-sale and so on) finish, it is to be fixed to oneself Good position. And then start a full shop style. Once the location is good, the shop will do this style. This stylized shop attracts a lot of people. It gives people the feeling of being very unique. It is a very good step to improve the conversion rate.
Describe the second step: buyer demand. There are about 2 kinds of customers who come to the shop to see the products.
(1) hard demand products. That is, today there is this demand to buy products. What does this customer do? Catch the pain points directly. Finally, the hard Description: quality, after-sales guarantee and so on, and finally add additional description in fact not need more, catch the heart of the main needs can, but the competition is also fierce, you know how to do, others understand, so the pain point of demand should be more carefully divided into the heart of the consumer. But the first step is to make a good position. Positioning determines demand.
(2) wandering the consumer group. If we encounter such consumers, what we need to do is create demand. How to create demand? Also: the customer segments may start to buy no consciousness, if we could make it transactions, or the price is awesome, or the product description is a very attractive, some copy or just hurt its heart. So this customer transaction probability is relatively low. For this kind of customer, it can only be described on the price, copywriting scene, and some quality aspects. Well, finally, let’s sum up.
0: first a section of deep heart of the copywriting bar
1; demand Description: (inner needs) (style positioning) takes the most time to do.
2: hard demand (quality)
3: accessories (gifts, coupons)
4: after sale guarantee
This is probably the end of the description. Let’s remember a few things: when you do the description, do not do the picture very much, and the speed of opening is slow. Two, the picture must strive for high definition and beauty. Three, almost the same picture as little as possible, do not add to the snake. Four, picture pull-down length, not too long, the description can be completed.
Finally, on the other points of the transformation:
1, price is a very important point, but with profit linked, the price is basically not moved.
2 Rating Rating: when evaluating sales volume at the beginning, you can brush it, or sell it half to half an hour. This can be a relatively good evaluation. Of course, these can only be done at the beginning. The final evaluation will be the best after sale.
3, after-sale protection: small seller orders less after sale this piece is relatively simple to do, can give customers one by one see quick receipt, make a phone call. Or send a handwritten note when you send the product to show your thanks. For big sellers, the best gift, after sale experience.
4, customer service ability. Purely personal negotiation skills, and whether it will understand the need to capture customers’ internal needs.
Above all, the description conversion can be done relatively well.
Article label: E-commerce

How should a bit be selected?

Drill bits are widely used hardware in our construction machinery. They are used to drill through holes or blind holes on solid materials and to drill holes for existing holes. However, we choose different types of drill bits in different working environments. The main drill bits are twist drill, flat drill, center drill, deep hole drill and casing drill. Reaming drill and counter drill can not drill holes in solid materials, but they are traditionally classified as drill bits. Next, let’s look at the different uses of different types of drill bits together with Xiaobian.

The twist drill is the most widely used hole cutting tool. Usually the diameter ranges from 0.25 to 80 millimeters. It is mainly composed of the working part and the handle. The working part has two spiral grooves, shaped like a twist, hence its name. In order to reduce the friction between the guide part and the hole wall, the twist drill decreases gradually from the drill tip to the handle part and the diameter is inverted cone. The twist angle of twist drill mainly affects the size of the front corner, the strength of the blade edge and the chip removal performance, usually from 25 degrees to 32 degrees. Spiral grooves can be machined by milling, grinding, hot rolling or hot extrusion. The cutting edge is formed by grinding the front end of the drill bit. The cutting part of the standard twist drill is 118, the angle of the transverse blade is 40 to 60 degrees, and the rear angle is 8 ~ 20 degrees. Because of the structural reasons, the front angle is larger in the outer edge, and gradually decreases to the middle, and the transverse edge is at the negative front angle (up to about 55 degrees), and it is squeezed during drilling. In order to improve the cutting performance of twist drill, the cutting part can be grinded into various shapes (such as group drills) according to the nature of the material being processed. The handle of the twist drill has two types: the straight handle and the taper shank. The former is clamped in the drill chuck and the latter is inserted in the taper hole of the machine tool spindle or tail seat. The general twist drill is made of high speed steel. The twist drill with welded cemented carbide inserts or crowns is suitable for processing cast iron, hardened steel and non-metallic materials. The whole hard alloy twist drill is used to process instrument parts and printed circuit boards.
The cutting part of the flat drill is shovel shaped, simple in structure and low in manufacturing cost, and the cutting fluid is easily imported into the hole, but the cutting and chip removal performance is poor. The structure of the flat drill has two kinds of integral type and assembly type. The integral type is mainly used for drilling holes with diameters of 0.03 to 0.5 millimeters. The assembled flat drill blade can be replaced, and can be internally cooled. It is mainly used for drilling large holes with a diameter of 25~500 millimeters.

Deep hole drilling usually refers to cutting the hole with a hole ratio greater than 6 to Kong Shen. Commonly used are gun drill, BTA deep hole drill, jet drill, DF deep hole drill and so on. The drill is also used in deep hole processing.

The reaming drill has 3~4 cutter teeth, which is better than the twist drill. It is used for enlarging the existing hole and improving the machining accuracy and smoothness.

The countersink drill has more cutter teeth, and the hole ends are machined into the desired shape by the forming method, which is used to process the countersunk holes of various countersunk screws or to cut the outer ends of holes.

The center drill is used for drilling the center hole of shaft parts. It is essentially made up of a twist drill with small helix angles and a counter drill, so it is also called a compound center drill.

Hollow drill pipe is hollow drill bit, which is mainly used for core drilling

High speed rotary joint is in love with NSK bearings

The price of the rotary joint is naturally inseparable from the brand and configuration, so some well-known brand rotary joint manufacturers will choose Import seals on the core parts of the joint, especially the NSK bearing is the love of the high-speed rotary joint.
High speed rotary joint 4

1, high speed rotating joint is generally running at 3000r/min or higher speed, so the high load and impact resistance are very high. NSK bearing can meet this demand well, and also excellent in corrosion resistance and sealing performance. Under high speed environment, it can increase load capacity by 34%, and has higher reliability. It can work long hours under harsh lubrication conditions.
2, because of the excellent corrosion resistance of NSK Bearings, the life of high-speed rotary joints using NSK Bearings generally increased to about 1.5 times that of ordinary bearings.
Article label: high speed joint of rotary joint

Advantages of micro telescopic handle in machine tool processing

The micro compensation synchronous tapping tool handle can effectively compensate the error of the machine tool synchronization error, the taps manufacturing error, and the error caused by the change of the processing temperature. It perfectly solves the shortcomings of the flexible and rigid tapping tool handle. The product has the following six advantages:
1: greatly improve the service life of the taps.
2: squeeze tap can be used to significantly improve the machining efficiency.
3: can effectively improve the thread accuracy and thread surface quality, and thread depth controllable;
4: greatly reducing the requirements for machine tool synchronization precision;
5: it is especially suitable for the processing of aluminum parts and the tapping of small teeth

Daquan of skid track knowledge

Material and working principle of slide rail
Material of slide rail: iron (zinc and lacquer), copper and other alloys.
The working principle is to achieve the expansion by rolling the ball or roller between the track and the track.

The structure and use of slide rail
A slide rail structure consists of a sliding rail seat, a ball sliding seat, a sliding plate and a homing component. The slide seat is slipped on both sides of the sliding rail seat, and the sliding plate is embedded in the slide seat and can slip by using the two ball sliding seats. The rear end group of the slide plate is provided with a zigzag guide slot. The base is composed of a base, a slider, and a spring, which is fixed on the back end of the slide rail seat and has a guide slot. The front end of the guide groove is bent to form a certain position, and the slider is slid in the guide groove and is pulled by a spring to bring back the resilience back to the rear end of the base, and the base is slow on the base. Flush elastic block sliding plate and ball sliding seat;
It is characterized in that the spring is a single set method, the front end is connected to the slider, the back ends round the rear section of the base, and then twists and zigzag the positioning hook arranged on the side of the circular convex tube, which is constructed by the first buffer sheet and the two buffer sheet, and the first buffer is relative to the base. The position of the middle part of the middle section is a plate body bending to bend into an inverted U shape, and the back end of the ball sliding seat is placed in elastic stop when the back end of the ball sliding seat is returned. The second buffer sheet is located between the guide slot and the circular convex tube above the base.

Main points of selecting and buying slideways
1. features of the bottom bracket: the track is hidden at the bottom of the drawer, durable, sliding without friction, no noise, and can be self closing.
2. steel ball type features: smooth sliding, convenient installation, very durable. The special structure of the rail and the precision steel ball ensure stability. It can be directly mounted on a side board or in a slot installed or loaded into a drawer side board, and their specifications are (mm) 250300350400450500550600. In addition, there are many special tracks, such as frame rails, mesa ball tracks, etc.
3. selection factors: there are several points to be paid attention to when choosing the slide rail, one is the proportion, the two is the surface treatment, the three is the structure and the material, and the four is the applicability.
4. weight: usually refers to the same length or volume unit weight, which refers to the same type (such as two track) weight of the slide.
5. surface treatment: this can be seen from the naked eye. You don’t need to listen to too many sales words.
6. structure and material: look at the thickness of the cross section of the metal material of the slideway, and its structure. The quality of the slide rail, which usually uses a lot of plastic parts, is not as good as the whole metal slide.
7. applicability: stretching the slideway can feel the weight, strength and so on.

Selection of slide rail
1. test steel.
How much can the drawer bear? It mainly depends on whether the rail steel is good or not. The thickness of the drawers of different specifications is different, and the bearing capacity is different. When you choose to buy, you can pull out the drawer and press it slightly with your hands to see if it will loose, sway or flip.
2. look at the material.
The material of the pulley determines the comfort of the drawer when sliding. Plastic pulley, steel ball and wear-resistant nylon are the three most common materials for pulley, wear-resistant nylon is the top quality, while sliding is quiet and silent. To see whether the pulley is good or bad, you can push and pull the drawer with one finger. It should be free from astringency and no noise.
3. pressure device.
In the hardware fittings of cabinets, apart from the slide rails and closely related drawers and hinges, there are also many hardware such as pneumatic and hydraulic devices. These accessories are adaptable to the constantly changing cabinet design. They are mainly used for flip door and vertical lift doors. Some devices have three points, or even more point of the brake position, installation of the pressure device cabinet, saving power and quiet, it is suitable for the elderly to use the key points to see the pressure device is good or not to use, try more! See if labor, braking is convenient. But it should be noted that the pressure device is good, but the price is more expensive.

Installation program for rotating joint of high temperature and heat conduction oil

In the fields of metallurgical machinery, electrical automation, electronic supporting services, metallurgy and chemical industry, a kind of rotary joint can be divided into water, steam, hot oil, air and vacuum, hydraulic oil and cooling water. In order to be convenient for selection, this type of rotary joint is generally classified as a model of high temperature heat conduction oil rotating joint. Domain. In the installation of such rotary joint, must be installed in accordance with the manufacturer’s instructions to install, in order to avoid high temperature heat conduction oil rotating joint running and dripping and leakage situation.

The installation program of high temperature heat conduction oil rotary joint is as follows:
1. when taking over, ensure that the section of the pipeline is vertical, and there is no scratch or other damage on the pipe mouth and no deformation of the pipe mouth.
2. when connecting the pipe, it is confirmed that the connection with the joint is complete, the seal of the socket is intact, and the seal face of the rotary joint should be protected well during the installation process to avoid the damage, otherwise the leakage will be caused by the poor sealing property.
3. after the pipe is inserted, gently pull down the pipe to confirm whether the joint nozzle can pull.
4. be sure to keep the pipes clean inside and outside the pipes before making the connection.
5. to disassemble the nozzle of the rotary joint, first, the pressure in the pipe should be guaranteed to be 0, then the spring is loosened and the trachea is pulled out to avoid the scratches in the outer circumference of the trachea.
6, the installation of any problems can be directly related to the technical department of Tengzhou Jiangsheng Machinery Manufacturing Co., Ltd., online guidance to answer the problem of the installation of rotary joint.
In fact, the installation of rotary joints is very similar. As long as they are installed according to the installation steps of rotary joints, the normal use of rotary joints is the primary guarantee.

What are the characteristics of the pneumatic connector for quick screwing connector of stainless steel?

1. quick installation, simple and dexterous, saving space, simple and reliable connection and disassembly;
2. with R/G/ZG/NPT and metric M thread;
3., a wide range of types, to fully adapt to complex application layout sites;
4. the installation is completed, and the six corners of the pipe body can be disassembled quickly.
5. the seal ring fluororubber elliptical O design can be adopted, and the sealing performance will be better.

Do you know the six corner nuts and their uses?

The six angle nut is used in conjunction with bolts and screws to connect the fastening parts. Among them, the 1 type six angle nut is the most widely used, C nut is used in machine, equipment or structure with rough surface and low precision. A and B nut are used in the machine, equipment, or structure with higher precision on the surface. The thickness of the 2 type six angle nut is m thick, and it is often used for occasions that often need to be assembled and disassembled. The thickness of the six corner thin nut is thinner than that of the m, which is used for occasions where the surface space of the connecting parts is limited.
It is widely used by type 1 six nut, and C nut is used in machine, equipment or structure with rough surface and low precision. A and B nut are used in machine, equipment, or structure with higher surface precision and higher precision. The thickness of the 2 type six angle nut is M thick, and it is often used for occasions that often need to be assembled and disassembled. The thickness of the six corner thin nut is thinner than that of the M, which is used for occasions where the surface space of the connecting parts is limited.

Where are the rivet nuts to be used?

Rivet nut, also called rivet nut, I often mix the rivet nut with the rivet nut.
What is a pull rivet nut?
The rivet nut, also known as rivet nut, pulling cap, and instant pulling cap, is used in the fastening fields of all kinds of metal sheet and pipe manufacturing industry. It is widely used in the assembly of automobile, aviation, railway, refrigeration, elevator, switch, instrument, furniture, decoration and other mechanical and electrical products.
What is a riveting nut?
The rivet nut is also called the rivet nut. The self fastening nut is a nut applied to the thin plate or sheet metal. Its shape is round and has embossing teeth and guiding grooves at one end.
What are the material of the rivet nut?
Aluminum, iron, stainless steel, etc.
What are the shapes of shapes?
1. flat head 2. small sunk head 3. big sink head 4. half circle outside six Jiao 5. light body pull rivet nut etc.