What is the manufacturing process of hob?

The best quality of the hob first depends on the material and heat treatment process.

The structure of the disc cutter is: rolling (left and right structure) cutter (single structure).

The structure of the disc cutter is: rolling (left and right structure) cutter (single structure). The phonetic pronunciation is: Pinyin is: gǔndāo.

What is the specific explanation of the hob, we will introduce it to you through the following aspects:

1. Explanation of terms [click here to view the details of the plan].

1.A weapon. 2.A metal-cutting tool. There is a groove along the axial direction to form a cutting edge for rotary cutting motion. It is used to process the tooth profile of gears, bridge worm gears, etc. on the gear hobbing machine. 3.A knife technique for cutting vegetables.

2. Citations and Explanations.

A weapon. quotes the fifty-second chapter of "Water Margin": "The cooked copper mask is like gold, and the iron hob is like a broom."

A metal-cutting tool. There is a groove along the axial direction to form a cutting edge for rotary cutting motion. It is used to process the tooth profile of gears, worm gears, etc. on gear hobbing machines.

3. Chinese dictionary.

Metal cutting tools. It is fixed on the gear hobbing machine and is used to hold the toothed tools of heavy gears, worm gears, spline shafts, etc.

Fourth, the network explained.

Gear machining tools with hob cutter teeth arranged in a spiral along a cylinder or cone, used to process cylindrical gears, worm gears, and other cylindrical toothed workpieces according to the development method (see Gear Machining Gears). According to the different uses, hobs are divided into: gear hobs, worm gear hobs, non-involute stretched hobs and fixed hobs, etc.

Idioms about hobs.

Rolling melons, running water, farts and urine, gushing melons, ripe.

Words about hobs.

The fart is rolling, the urine is flowing, the snowball is rolling, the soup is pouring snow, the melon is rolling, the melon is ripe, the melon is ripe, the melon is round, the soup is splashing, and the snow is splashed.

Sentence formation about hob.

1. "Hob meat" is out of line this time, Sterling.

2. The hob cutter and the shaper cutter are designed with a large trimming angle, which is conducive to improving the meshing quality.

3, the Liao family found that he really couldn't do anything with Cang Hao, not to mention how powerful this guy is, he can always choke others with a sentence or two, and he also puts on a hob meat posture that you can do whatever you want.

4. The structure and implementation method of the gear hob system are introduced.

5, the "hob meat" father and son refused to spit out stolen money, stolen money.

1. Prepare a circle with a diagonal cut, and then cut a knife obliquely at 2 1 on the cucumber cutting surface.

2. Turn the last cut of the cucumber upwards.

3. Repeat the action constantly.

4. Hob block is a culinary term. It refers to the method of rolling raw materials and diagonal vertical knives to cut raw materials into basically the same pieces, such as roasted eggplant. The hob is a common knife method in the cooking of Chinese friends, and is often used for cylindrical raw materials in tubers.

The volume of the processed original imitation collapsed material is larger than that of slices, dices and silks, which is suitable for cooking vegetables and simmering soup.

Explanation of hob cutter (1).A weapon. "Water Margin" Chapter 52:

The cooked copper mask is like gold, and the iron hob is like a broom. ” 2).A metal-cutting tool.

There is a groove along the axial direction to form a cutting edge for rotary cutting motion. It is used to process the tooth profile of gears, worm gears, etc. on gear hobbing machines.

Words stool seep decomposition.

Explanation of rolling ǔ the flow of water tossed: the great river rolls to the east. Describe Rapid churning:

Wind and smoke are billowing down. Water boils, boils : boiling.

I don't care about you. Rotate and move: Roll.

Rolling. Roll over. Drum.

Rough posture before balls. Snowball. Go away, leave (with rebuke):

Get out! A method of sewing, along the clothes of the knife Explanation of knives ā tools used to cut, cut, chop, sharpen, chop, stab, guillotine: knives.

Weapons. Knife technique. Scissors.

Sickle. China's paper unit of measurement: one knife to one hundred sheets.

A kind of ancient coin is very unique, because it is shaped like a knife, so it is called: knife coin. Surname.

Radical : Knife.

The working principle of the gear hob of the long round hobbing cutter is the same as the meshing sliding process of a pair of staggered shaft helical gear pairs, the hob cutter is equivalent to the pinion, and the workpiece is quite lost to the large gear.

Movement during gear hobbing.

The rotary motion of the hob around its own axis is the main motion during gear hobbing, and the feed motion includes the rotation of the tooth blank and the movement of the hob along the axis of the tooth blank. The rotary motion of the disc cutter and the rotary motion of the tooth blank around its own axis form an expansion motion. The unfolding motion conforms to the principle of gear meshing, and in order to ensure that the number of teeth of the gear to be cut is correct, a strict speed ratio must be maintained.

A rolling tool is a rock breaking tool that not only rotates with the cutterhead, but also rotates at the same time.

According to the shape of the cutting edge, the disc cutter can be divided into: toothed disc cutter (steel tooth and ball tooth), disc disc cutter (steel cutter ring hob and ball tooth cutter ring hob).

Commonly used tools for machining externally meshing cylindrical gears with spur and helical teeth. During machining, the hob is equivalent to a helical gear with a large helix angle, and the number of its teeth is the number of heads of the hob, and the workpiece is equivalent to another helical gear, which is spatially meshed with each other according to a pair of helical gears, rotates at a fixed speed ratio, and is enveloped into the tooth shape of the gear by the tooth tooth shape of each adjacent position of the cutting sequentially. Most of the commonly used hobs are single-head (see thread) in mass production, and multi-head hobs are often used to improve efficiency.

Gear machining tools with cutter teeth arranged in a spiral along a cylinder or cone, used to machine cylindrical gears, worm gears, and other cylindrical toothed workpieces according to the development method (see Gear Machining Gears). According to the different uses, hobs are divided into: gear hobs, worm gear hobs, non-involute stretched hobs and fixed hobs, etc.

Profile milling cutter with dedicated milling spiral teeth.

CNC machine tool tool encyclopedia of hobbing cutter + gear cutter + special cutter.

Commonly used tools for machining externally meshing cylindrical gears with spur and helical teeth. During machining, the hob is equivalent to a helical gear with a large helix angle, and the number of its teeth is the number of heads of the hob, and the workpiece is equivalent to another helical gear, which is spatially meshed with each other according to a pair of helical gears, rotates at a fixed speed ratio, and is enveloped into the tooth shape of the gear by the tooth tooth shape of each adjacent position of the cutting sequentially. Most of the commonly used hobs are single-head (see thread) in mass production, and multi-head hobs are often used to improve efficiency.

The number of teeth rotated by the gear is equal to the number of hob heads. When the spiral rise angle of the worm gear hob is less than 5 °, the disc cutter is often made into a straight flute, which is convenient for manufacturing and sharpening, and the disc cutter with a large spiral rise angle is often made into a spiral flute, so as to avoid the unfavorable situation that one side of the cutter tooth is cut with a large negative rake angle (see tool). Small and medium-sized module gear hobs made of high-speed steel generally adopt an integral structure.

In order to save high-speed steel, avoid forging difficulties and improve metallographic structure, disc structure is often used for disc cutters with modules of more than 10 mm (Fig. 1 Gear hob). There are many structural forms of disc disc cutters, and the commonly used one is the rack structure, that is, the cutter tooth part is made of high-speed steel and fastened to the cutter body after heat treatment. The manufacture of hobs from tungsten carbide can significantly increase cutting speed and cutting efficiency.

Solid carbide hobbs have been widely used in the watch and instrument manufacturing industry to machine a variety of small module gears. Medium-module solid and insert carbide hobs have been used to machine cast iron and bakelite gears. Tungsten carbide hobs with a module of less than 3 mm are also used for machining steel gears.

The carbide hob cutters can also machine hardened gears (HRC50 62). This kind of hob cutter often adopts a single-tooth welding structure, with a negative rake angle of 30°, and scrapes off a layer of tooth surface during cutting. Manufacturers of hob cutters and trading markets are available all over the country, such as state-owned enterprises specializing in the production of gear cutters

Chongqing Tool Factory, Hanjiang Tool Factory, Harbin No. 1 Tool Factory. Wenling, Zhejiang and other places are mostly private enterprises, such as "Wenling Kaiyuan Tool Factory", "Zhejiang Measuring and Cutting Tools Trading Market", "Chongqing Xingwang Tool Manufacturing Factory" and so on. The state divides the accuracy level of the hob cutter into AA level, A level and B level.

Generally, the national standard hob adopts AA grade. The ministry standard and the enterprise standard adopt A-level. The sprocket hob requires low precision, and generally uses grade B.

In order to process particularly precise gears, some countries also have AAA grade hobs. In the process of tooth cutting, the manufacturing error of the hob mainly affects the tooth shape error and base joint deviation of the gear. The hob used to process the tooth profile of the gear before shaving is called the pre-shaving hob.

The tooth shape of the pre-shaving hob should be made into a special shape according to the requirements of the shaving surplus form (Fig. 2 Tooth shape of the pre-shaving hob). The tooth top with convex angle The hob tooth shape with chamfering at the tooth root is a more commonly used form of shaving retention, which makes the tooth root of the processed gear have some digging roots, some chamfers at the top of the tooth, and the middle part of the tooth shaving balance is uniform. (See color picture: Finishing tools for hard tooth surface gears, carbide scraping hobs, gear processing tools, hobs, gear shaping cutters, shaving cutters).