Deep Hole Honing Machine For 2m Hydraulic Cylinders

Machine Sketch for reference ONLY :

 

Machine Brief :

1.1 Machine processing capacity:

Hole diameter range :Φ40~Φ200mm

Max. Honing depth: 2000mm

Max. Workpiece length :2000mm

1.2 Machine functions and application:

The machine is used for precision processing of various cylindrical workpieces with deep hole ,such as hydraulic cylinders and cylinders etc. .

It can do either whole honing or local honing ; When honing locally, the errors of taper, ellipse and local hole diameter can be corrected.

The expansion of honing head is controlled by servo motor, both constant pressure feeding and quantitative feeding could be realized .

1.3 Oil supply mode for honing head : External oil spray , Internal oil supply.

1.4 Workpiece clamping :

The workpiece is placed on two sets V-shaped workpiece carriers, locked by the pipe clamp chain; V-shaped workpiece carriers could be adjusted by manual to clamp workpieces with different diameter .

1.5 Machine main structure:

1.5.1 Machine main parts

Machine bed, Honing box, 2sets workpiece carriers, Honing bar support rest, Rack

and pinion, Coolant system,DELTA PLC system, Electric cabinet , and so on .

1.5.2 CNC axis :

Z1 axis: The longitudinal feeding movement of the honing box (honing head reciprocating movement), the servo motor drives the rack and pinion mechanism through the reducing mechanism.

Z2 axis: Control the expansion of honing head, the servo motor drives the ejector pin to move axially through reducing mechanism .

1.5.3 Machine bed :

 

 

Cast by super casting iron HT300,undergo normalize treatment after casting, after twice aging treatments, the internal stress is eliminated, the structure and size are stabilized, and the mechanical properties are improved.

The linear guide rail is mounted on the machine bed , used for reciprocating movement of honing head, to meet the requirements of high speed during honing.

The inner side of machine bed is mounted with rack, use for the feeding transmission of honing head. The transmission of rack is stable after precision processing and heat treatment .

Linear guide rail

 

1.5.4 Honing box:

Used to drive the honing head to rotate, rotation speed stepless .

The variable frequency motor drives the spindle to rotate through the gearbox, and the gears are ground precisely. The tooth surface of the gears is treated by high frequency quenching, and the hardness of the tooth surface is HRC48-52. In this way, the gear can obtain high strength, high hardness, high wear resistance and high fatigue limit, and can withstand large alternating load and impact load.

The spindle is supported by a combination of cylindrical roller bearings and thrust ball bearings. The spindle has high accuracy and can withstand large axial and radial forces.

In order to improve the service life of gears and bearings, lubricating oil is used.

1.5.5 Workpiece carrier:

2sets, used to support the workpiece .

V-shaped structure, control the centering movement of two inclined edges of V-shaped through the positive and negative screw .

The workpiece is placed on the carrier, locked with pipe clamp chain manually.

The cushion plate with anti-slip function is assembled on the inclined edge of the V-shaped wokpiece carrier, which can effectively prevent the workpiece from rotating in process of honing.

1.5.6 Honing bar support rest

Supporting honing bar in the process of honing and measuring.

Two set, one set is fixed on the machine bed, another set moves on the linear guide rail of machine bed .

1.5.7 Coolant system

Supply the lubricating liquid for honing head .

Mainly composed of pumps, paper filter, magnetic filer,oil tank etc. .

Could provide external and internal two oil supply method for the honing head, it can be exchanged on the operation panel .

1.5.8 Lubricating system

The sliders of guide rail for reciprocating movement of honing box is lubricated automatically through automatic lubrication station, and liquid level alarm is provided on lubrication station.

The honing box is filled with lubricating oil ,the gears and bearings inside are lubricated by the rotation of the gears.

1.5.9 Control system :

 

 

DELTA PLC Control System.

Using human-machine interface touch screen, reciprocating speed, rotating speed and honing head feeding rate etc. can be set on it .

The operation station is assembled on the machine bed,the operation panel can be turned manually to facilitate the operation of the machine.

Machine main technical parameters:

Specification			Parameter	Remark
Working Capacity	Hole diameter range		Φ30~Φ200mm	/
	Max. Honing depth		2000mm	/
	Max. Workpiece length		2000mm	/
	Workpiece OD range		Φ60~Φ300mm	/
Machine Performance	Z1 axis (honing box reciprocating movement)	Feeding speed range	1~40m/min	/
		Feeding motor torque /power	27Nm/4.3KW	/
	Z2 axis (honing head expansion and contraction)	Servo motor torque/power	2.39Nm/0.75KW	/
	Honing box	Rotary speed range	50~260r/min	/
		Motor power	11KW	/
Coolant system	Max. flow		100L	/
	Filtering accuracy		20μm	/
Others	Max. Workpiece weight		3T	/
	Machine floor size		8mx2.8m	/
	Machine total power		20KW	/

 

 

Machine main configurations list :

Series	Item Name	Supplier
1	PLC	DELTA
2	Main motor of honing box (Frequency conversion motor)	Chinese famous brand
3	Spindle bearing	Chinese famous brand
4	Main electric components	SCHNEIDER/SIEMENS
5	Rack	Taiwan YYC or equal brand

 

Machine standard and optional parts:

Series	Standard Parts	Optional Parts
1	Machine bed	Honing head
2	Honing box	Honing bar
3	2sets of workpiece carriers	Auxiliary toolings matching with honing bar
4	Honing bar support rest	Cutting oil
5	Rack and pinion	Other CNC system
6	Coolant system	Voltage transformer
7	DELTA PLC control system
8	Electric cabinet
9	Working lamp
10	Machine User Manual

 

Processing accuracy :

Hole size accuracy: IT7~IT8

Surface roughness: Ra0.2~0.8um (according to the honing stone used)

Documents :

Mechanical Part User Manual	1SET
Electrical Part User Manual	1SET
PLC program back-up	1SET
Machine appearance drawing	1SET
Packing list	1SET
Certificate of conformity	1SET

Machine manufacturing and inspection standards:

Standard	Item
GB/T 9061-2006	General technical specifications for metal cutting machine
GB/T 5226.1-2019	Mechanical and electrical safety - Mechanical and electrical equipment - Part 1: General technical specifications
GB/T 25373-2010	General technical specifications for assembly of metal cutting machine
JB/T 12403.1-2015	Deep hole honing machine - Part 1: Accuracy testing
JB/T 12403.2-2015	Deep hole honing machine Part 2: Technical conditions

 

Machine working conditions

8.1 Power supply: Three-phase five-wires power source, 380V±5％, 50Hz±1Hz

8.2 Working Ambient Temperature: 0℃~40℃ (Not frozen)

8.3 The humidity in the surrounding environment is below 80% (without condensation)

8.4 Altitude: 0~2000m

8.5 Required conditions for installation site:

Should avoid being affected by external vibrations; Should avoid being affected by corrosive gases or liquids; Avoid direct sunlight on the surface of the machine ; Keep away from direct strong cold or hot air sources; Efforts should be made to minimize dust pollution (such as metal dust, sand, etc.).

Machine installation and debugging conditions (prepared by the user)

9.1 Incoming power supply: three-phase five wire power supply, 380V±5%, 50Hz±1Hz, user provides the cable from the workshop power supply to the electrical cabinet

9.2 Cleaning oil and utensils: Provide 20 liters of gasoline or kerosene, and some cotton cloth

9.3 Cutting oil: Deep hole extreme pressure cutting oil, kinematic viscosity 40℃: 2.6mm²/s, extreme pressure agent content≥15%, flash point℃≥ 110.

9.4 The user prepares lifting equipment and tools for lifting

9.5 Cutting tool, drill bar, auxiliary tools, clamping device for machine trial(If the user didn't order any )

 

 

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