How does the gear hobbing machine work, and how does the gear hobbing machine operate?

When the pump is started, the driving wheel drives the driven gear, the driven gear rotates in the opposite direction, there is a good meshing between the gear and the gear, and the teeth of the two gears scrape away some of the oil at the inlet, so the liquid that forms a low-pressure suction liquid into the pump body is divided into two ways, and is pushed forward by the gear in the gap between the gear and the pump casing, and is pressed to the oil drain port to form a high pressure and discharge. The main equipment of the blowing air ** boiler are: combustion furnace, CNC gear hobbing machine, steam superheater, boiler body, second air preheater, soft water heater, air preheater, induced draft fan, and blower.

The selection of the accuracy grade of the gear hob should be selected according to the accuracy grade or process requirements of the gear to be processed. [Click to get real-time from the manufacturer**].

Hebei Zhuohao Machinery Manufacturing ****'s unified social credit ** registration number is 91130526MA07N05D75, the enterprise legal person Li Xiaohua, the company is currently in a state of operation. The company adheres to the business philosophy of "co-creation and sharing, win-win future", adopts modern enterprise management mode, and advocates green ecological environment and sustainable development. The company has a R&D team with advanced level in the industry, with independent research and development of core technology and intellectual property rights, advanced product technology, and the yield rate is much higher than the same industry level.

The company has more than 20 years of professional manufacturing history, has a strong high-tech team, our company has excellent quality, reasonable, thoughtful service and other competitive advantages, the current products are exported to Southeast Asia, South Korea, Russia and other countries and regions. <>

Gear hobbing machine (gearhobbingmachine) is the most widely used machine tool in gear processing machine tools, on the gear hobbing machine can cut spur teeth, helical cylindrical gears, worm gears, sprockets, etc. A gear processing machine for processing spur, helical and herringbone cylindrical gears and worm gears by the hob method. This machine can also machine a wide range of workpieces with special tooth profiles, such as splines and sprockets, using special hobs.

The machining accuracy of ordinary gear hobbing machine is 7 6 grade (JB179-83), and the high-precision gear hobbing machine is 4 3 grade. The maximum processing diameter is up to 15 meters.

The operating principle of the gear hobbing machine, even the internal mechanical structure is also clear!

CNC gear hobbing machine spindle design.

The front bearing is a short cylindrical double roller bearing that bears radial force + two angular contact ball bearings that bear axial force.

The rear bearing is made of a short cylindrical double roller bearing.

In addition, the tool loading at the end of the front shaft, the gear position in the shaft, etc.

The operation steps of the gear hobbing machine are as follows:

1. Check the gear hobbing machine.

1.Check the fuselage, chuck, guide rail shaft and other components to ensure that they are in good working condition.

2.Check the bulbs, switches, wires, etc., to make sure the machine is not short-circuited, burned, etc.

3.Inspect the tip, holder, frame and other components to ensure that the blade and tank are not worn or stained.

4.Check the oil tank to make sure that the oil in the tank is sufficient and that there is a prescribed amount of lubricating oil.

2. Preparations.

1.Set the parameters of the gear hobbing machine according to the shape of the workpiece, the material, the size of the hobbing gear, the machining accuracy, etc.

2.Place the bearing seat and bearing clamp on the machine base, and install the bearing sleeve and bearing.

3.Install the tool holder and adjust the height of the tool holder to ensure that the position and angle of the workpiece are correct when doing rolling groove processing.

4.Install the blade to ensure that the blade sharpening edge, tip thickness, angle, etc. meet the processing requirements.

5.Carefully inspect to ensure that the workpiece can be processed safely and that the machine is running without abnormality.

3. Operate the gear hobbing machine.

1.Turn on the power and start the gear hobbing machine.

2.The workpiece is mounted on the machine base and the workpiece is fixed.

3.Control the gear hobbing machine to ensure that the gear hobbing machine is running normally, the tool holder movement is normal, and there is a specified lubricating oil addition.

4.Operate the gear hobbing machine and carry out gear hobbing according to the set parameters to ensure that the roller profile is correct, flat and high-precision.

5. Test results.

After the operation, use the gauge to measure the roller profile to ensure that the accuracy meets the requirements, and check whether the hobbing shape, depth, etc. meet the requirements.

Summary. Hello, the main drive principle of the gear hobbing machine ** is as follows: the compound motion between the hob and the workpiece (B1+B2 in Figure 1) is called the expansion motion. The transmission chain from the power source (motor) to the tool spindle is called the external connection transmission chain, that is, the motor-1-2-iv-3-4-hob.

Since the rotation B1 of the hob cutter is the main motion, this transmission chain is called the main motion transmission chain. The transmission chain between the hob and the workpiece is called the transmission chain. It is used to maintain a strict transmission ratio relationship between B1 and B2, so it is called inline transmission chain, the number of heads of the hob is k, and the number of teeth of the workpiece is z, then the hob should be rotated 1 z per 1 k revolution, and the workpiece should be rotated 1 z.

In Fig. 1, this drive chain is: hob (B1)-4-5-ix-6-7-workpiece (B2).

Hello, the main drive principle of the gear hobbing machine ** is as follows, which requires the composite skin number between the hob and the workpiece to move (B1+B2 in Figure 1), which is called the development motion. The transmission chain from the power source (motor) to the spindle of Bitong tool is called the external transmission chain, that is, the motor-1-2-iv-3-4-hob. Since the rotation B1 of the disc cutter is the main motion, this combustion action chain is called the main motion transmission chain.

The transmission chain between the hob and the workpiece is called the transmission chain. It is used to maintain a strict transmission ratio relationship between B1 and B2, so it is called inline transmission chain, the number of heads of the hob is k, and the number of teeth of the workpiece is z, then the hob should be rotated 1 z per 1 k revolution, and the workpiece should be rotated 1 z. In Figure 1, this drive chain is:

Hob (B1) - 4-5-IX - 6-7 - Workpiece (B2).

Summary. 1.Principle of gear hobbing machining is to process gears according to the principle of the development method.

The use of hobs to process gears is equivalent to the meshing of helical gears with a pair of staggered shafts. In this pair of meshing gear pairs, a number of teeth is very small, only one or several, the helix angle is very large, it evolves into a worm-like gear, in order to form a cutting edge, the gear perpendicular to the direction of the helix groove is opened, grinding the rake and flank surfaces, forming the cutting edge and front and rear angles, so it becomes a hob. Hob cutter and tooth blank according to the meshing transmission relationship for relative motion, on the tooth blank cut out of the tooth groove, formed involute tooth surface, in the hobbing process, the disc cutter teeth distributed in the spiral successively cut out a thin layer of metal in the tooth groove, each tooth groove in the hob rotation by several cutter teeth in turn, involute tooth profile is enveloped by a series of instantaneous positions of the cutting edge.

Therefore, the forming method of the tooth surface when hobbing is the expansion method, and the forming motion is a composite motion (B1+B1Z) composed of the rotary motion of the hob and the rotary motion of the workpiece!

1.Principle of gear hobbing machining is to process gears according to the principle of the development method. Silian uses a hob cutter to process gears, which is equivalent to a pair of staggered shafts of helical gear mesh.

In this pair of meshing gear pairs, a number of teeth is very small, only one or several, the helix angle is very large, it evolves into a worm-like gear, in order to form a cutting edge, the gear perpendicular to the direction of the helix groove is opened, grinding the rake and flank surfaces, forming the cutting edge and front and rear angles, so it becomes a hob. Hob cutter and tooth blank according to the meshing transmission relationship for relative motion, cut out the tooth groove on the tooth blank, formed the involute tooth surface, in the hobbing process, the disc cutter distributed in the spiral each knife Qing song tooth successively cut out of a thin layer of metal in the tooth groove, each tooth groove in the disc cutter rotation by several cutter teeth in turn, involute tooth profile is enveloped by a series of instantaneous positions of the cutting edge. Therefore, the forming method of the tooth surface of the rolling gap grandchild tooth is the expansion method, and the forming motion is a composite motion (B1+B1Z) composed of the rotary motion of the hob and the rotary motion of the workpiece!