Large External Honing Machine

 

Total machine power: 22kW - 75kW
Processing beam:700-900cm3/h, maximum: 1200cm3/h
Precision of dimension: H6-H8
Stroke length (mm): 3000mm - 25000mm
Processing range Bore diameter (mm): 200mm-1000mm

 

 Easy and convenient operation

 Low requirements for operators
 Shorter clamping aligning time and higher processing efficiency

 

 

 External honing machine can only improve Form Accuracy
 External honing machine cannot change the position
 Concentricity cannot be corrected

 

 

Model	Bore length(mm)	Bore diameter (mm)	SIZE L(mm)	SIZE W(mm)	SIZE H(mm)	Weight (kg)
WYH-3000Z	3000	Φ200-φ1000	5024	1870	2050	70000
WYH-5000Z	5000	Φ200-φ1000	81024	1870	2050	90000
WYH-6000Z	6000	Φ200-φ1000	93024	1870	2050	110000
WYH-8000Z	8000	Φ200-φ1000	11540	1870	2050	160000
WYH-10000Z	10000	Φ200-φ1000	13540	1870	2050	200000
WYH-12000Z	12000	Φ200-φ1000	15540	1870	2050	260000
WYH-15000Z	15000	Φ200-φ1000	18540	1870	2050	300000
WYH-16000Z	16000	Φ200-φ1000	19540	1870	2050	350000
WYH-18000Z	18000	Φ200-φ1000	21540	1870	2050	400000
WYH-20000Z	20000	Φ200-φ1000	23540	1870	2050	450000

 

 

The honing machine is suitable for honing the outer circle of workpieces with diameters ranging from 110 mm to 1000 mm and lengths ranging from 1000 mm to 20000 mm.

 

• Processing cycle: 500-900 cm³/h (maximum up to 1200 cm³/h).
• Processing dimension accuracy: h6~h7.
• Surface roughness during processing: ≤ Ra0.4.
• Maximum workpiece weight between the top: 20000 kg.
• Total power of the machine tool: 75 kW.
• Machine tool load-bearing capacity: 20T

 

Figure 1 External honing machine

 

 

Spindle motor power: 37.5 kW.
Feed motor power: 1 kW.
Reciprocating motor power: 9.8 kW.
Support seat motor: 1 kW
Support seat lifting motor: 2 kW.

 

 

The honing machine is mainly composed of a spindle box, honing head, bed body, workpiece support (optional), reciprocating mechanism, tailstock, control operating system, cooling system, and outer shell.

 

Composition of an external External honing machine

 

 

Spindle end: GB A2-15.
Spindle through-hole diameter: 95 mm.
Front end taper hole of spindle: metric 100.
Spindle speed: 2-speed continuously variable transmission.
Spindle speed range: 39 r/min to 230 r/min.
Four jaw chuck diameter: φ 1200 mm.
Lubricating oil pump: 6 L/min.

 

Appearance of spindle box

 

 

The honing head adopts a three-layer frame structure, which can achieve multi-directional floating; The multi-directional floating of the honing head ensures automatic centering of the workpiece during the honing process.

The honing head consists of an oilstone seat mechanism, an inner frame, a middle frame, an outer frame, and a balancing system. The oil stone feed is powered by the feed motor in the inner frame, and is transmitted through a reducer, bevel gear, screw, synchronous belt, and synchronous wheel. It is automatically fed by program control

 

Composition of honing head

 

The connection between the inner frame and the middle frame relies on the upper and lower shafts of the inner frame, the rolling and sliding mechanism, and the deceleration mechanism. The fixed inner frame can roll and slide up and down and swing left and right in the middle frame, and is equipped with a nitrogen balance system to reduce the self weight of the inner frame and other parts. There are screw drive mechanism, reduction mechanism, and servo motor on the inner frame, which can realize the left and right movement of the oil stone seat moving mechanism, and realize the feeding and shrinking of the oil stone.

The installation position of the oilstone seat mechanism is adjusted according to the processing range. The oilstone seat pointer corresponds to the position of the honing head ruler. The oilstone is fixed to the oilstone seat mechanism through the oilstone clamping block, which can quickly and conveniently adjust the position of the oilstone seat and replace the oilstone.

 

Oil stone seat mechanism

 

 

The workpiece support mainly consists of arc-shaped workpiece support frame, swing arm mechanism, lifting mechanism, etc. The maximum supporting force is 30 kN, the support frame stroke is adjustable within the range of 0-280 mm, the lifting mechanism stroke is 10 mm, and the support frame roller is made of nylon material to prevent scratching the workpiece.

The machine tool can be equipped with a set of workpiece supports to effectively prevent the workpiece from scratching downwards.

 

 

Upright state of workpiece support

 

 

Workpiece support in a collapsed state

 

Schematic diagram of workpiece support frame adjustment

 

 

The reciprocating mechanism consists of an active sprocket box assembly, a driven sprocket box assembly, a drag plate, a chain connecting plate, a chain bracket group, a chain, a drag chain, etc. The servo motor drives the honing head installed on the drag board to achieve reciprocating motion through a planetary reducer, sprocket, and chain.

Reciprocating speed: 1 m/min to 25 m/min

 

Schematic diagram of the reciprocating mechanism active sprocket box assembly

 

 

The tailstock consists of a base component and a tailstock, equipped with an overload top, and a tailstock sleeve stroke of 280 mm.

 

Schematic diagram of tailstock

 

 

The machine tool adopts a fully digital industrial computer control system, with a 15 inch LCD touch screen for operation, a user-friendly interface, large information capacity, and simple and convenient operation.

Real time data collection, real-time feedback, and adjustment of process parameters when working. Super strong processing parameter dynamic database, the operator only needs to input the outer diameter of the workpiece, and the machine tool automatically generates corresponding spindle speed, spindle box gear, maximum load rate, maximum protection torque and other parameters. Minimize the workload of operators and effectively prevent erroneous operations.

The oil stone feed control system can detect the high and low points, as well as the outer taper of the workpiece in real-time during processing, and reflect them in real-time on the display screen in graphical form. For the discovered high and low points, manual operation is not required, and the machine tool will perform short stroke repairs on the high points on its own; When the processing curve approaches a straight line, the cylindricity of the outer circle is highly consistent. It also supports manual short stroke repair, with adjustable short stroke frequency and amplitude. The online measurement and automatic correction program for processing load can achieve automatic control of local honing.

The programmable touch screen can easily input the size of the workpiece and calculate the appropriate speed of the spindle. The touch screen can also display the real-time working status of the machine tool: spindle load, high and low points of the outer circle of the workpiece, honing head position, honing time, feed rate, power range, etc. For the main parameters of processing, stroke, pressure, and time, there is a shortcut to directly adjust them using the touch screen. The equipment has an automatic repair function for parts. After detecting the position where the outer diameter of the workpiece is too large, the automatic repair can be turned on to automatically perform short-range repair at this position.

 

Human Computer Interface

 

 

The cooling system is equipped with a three-stage filtering device consisting of an oil pump, magnetic separator, paper tape filter, and filter screen. The honing oil first passes through a magnetic separator, which can automatically remove most of the iron powder mud in the honing oil, and then passes through a paper tape filter, at which point the majority of the iron powder and oil stone powder in the honing oil have been removed. Finally, the circulating cooling working fluid is provided to the workpiece through the oil tank filter, oil pump, and pipeline. The amount of cooling oil can be adjusted according to the actual processing situation, and the cooling switch is located on the other side of the honing head.

 

 

Surface roughness: ≤ Ra12.5.
Roundness: ≤ 0.3 mm.
Conical angle: ≤ 0.2 mm/m.
The overall taper of the workpiece is ≤ 1 mm.

 

 

1. Configuration List
Please refer to Attachment 1 for details.

2. The necessary tools for machine tool installation.

3. Technical data
Mechanical and electrical numerical control system manual, product qualification certificate.

 

 

1. Requirements for equipment installation, debugging, operation training, etc
Pre acceptance before product shipment, the supplier is responsible for the reception of the demand side and completing the pre acceptance work. The equipment will arrive at the site, and the supplier's service personnel will arrive at the demander within 20 days after receiving the service notice to install, debug, and test the machine tool. The equipment installation is the responsibility of the supplier, who shall provide their own installation and construction tools. The supplier shall comply with the company's regulations during the installation process and maintain the 5S work on site during the construction process. Installation and debugging will be completed within 60 days. After installation and debugging, trial production will be carried out and acceptance will be carried out according to standards. The supplier shall provide training for the purchaser's operators and maintenance personnel on site, with a duration of 7 days; The trained personnel will undergo theoretical and practical assessments jointly organized by both the supply and demand sides until they meet the job requirements.

2. Quality assurance period
The quality assurance period of the equipment is 12 months. During the warranty period, if there are any quality problems or malfunctions caused by poor equipment design or manufacturing or the responsibility of other suppliers, the manufacturer must immediately repair or replace the equipment free of charge and debug it properly.

3. After sales service
If the equipment malfunctions during the warranty period, the supplier must respond positively within 4 hours after receiving notification from the purchaser. If the supplier needs to go to the site for handling, the supplier must arrive at the purchaser's site within 48 hours.

4. Equipment installation
The installation of the equipment shall be assisted by the machine tool operators of the demand side, and professional training shall be provided to the operators on the structure and working principles of the machine tool, including simple troubleshooting, during the installation of the machine tool.

 

 

1. The machine tool has been working continuously for 3 days, with stable equipment performance and product quality meeting technical requirements.

2. All electrical components used in the equipment are made of high-quality products and ensure reliable operation.

3. The equipment requires smooth operation, flexible control, and no oil leakage or abnormal noise.

4. The supplier guarantees that all parts of the machine tool are brand new.

 

 

1. Three barrels (200 L/barrel) of honing oil must be purchased from the supplier's designated model during acceptance.
2. Trial machining of workpieces (workpieces with dimensions within the range of honing machine machining)
3. Honing oilstone (the supplier only provides a small amount of honing oilstone for the buyer to inspect and test the honing workpiece).

 

Attachment 1: Configuration List
List and quotation of External honing machine configuration

 

Serial Number	Name	Remarks	Brand
1	host	WYH-20000	LRT
2	spindle	37.5 kW	Dench
3	Spindle motor driver	37 kW	schneider
4	feed motor	1 kW	schneider
5	Feed motor driver	1 kW	schneider
6	Reciprocating motor	9.8 kW	schneider
7	Reciprocating motor driver	9.8 kW	schneider
8	digital control system	WYH-1	LRT
9	Touch screen	15 inches	schneider
10	bearing		NSK
11	coupling		Italy
12	Aviation connectors/ electrical components		schneider
13	Bed frame/sheet metal		Liruite
14	Filtration system	centrifuge	Turbo-separater
15	rail	Linear guide pair
17	Electrical components		schneider
18	pneumatic components		AirTAC

Note: Due to the delivery time of some imported brands of motors and drivers, the above configuration may affect the delivery time or be unable to be supplied. If it is impossible to supply or affect delivery, the manufacturer and the demander will negotiate and communicate to jointly choose alternative products.

 

 

The External honing machine is a kind of machine tool specially used for precision machining of outer circle surface of axle parts. Through the unique honing process, it performs high-precision and high-efficiency final finishing on the excircle of the workpiece, aiming to significantly improve the geometric accuracy and surface quality of the excircle

 

 

The External honing machine adopts flexible floating grinding, and the cylindrical grinding machine adopts rigid contact grinding
External round honing: the oil bar floats in the radial direction to fit the workpiece, and the processing method of the external round honing machine: the oil bar floats in the radial direction to fit the workpiece
The main motion of the cylindrical grinder is the high-speed rotation of the grinding wheel

 

 

External honing machines are good at fine and long shaft shape accuracy repair and efficient surface finishing 

The cylindrical grinding machine is the multi-step shaft all-around player and the position accuracy control core

 

 

1：15 years of experience in research and production of honing machines
2： Honing machine operating software with independent intellectual property rights
3：The motor and electrical components are sourced from European or Japanese brands
4：Reliability is recognized by the market
5：Excellent technical team
6：Excellent after-sales service team

 

 

1：Since 2010, a highly recognized honing machine manufacturer in the Chinese market.
2：We have an experienced, young, and responsible team.
3：We have an excellent technical team. We are proud of our products.
4：Quality assurance! Before delivering to the customer, the factory's quality supervision department strictly controls the quality.
5：Customize special honing machines and tools according to customer needs for honing special workpieces.

 

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