Hydraulic Cylinder Honing Machines

Machine Sketch for reference ONLY :

1. Machine Brief :

1.1 Machine processing capacity:

Hole diameter range :Φ20~Φ50mm

Max. Honing depth: 3000mm

Max. Workpiece length : 3000mm

1.2 Machine functions and application:

The machine is used for precision processing of various cylindrical workpieces with deep

hole .

It can do either integral honing or local honing ; When honing locally, the errors of taper, ellipse and local hole diameter error can be corrected.
The expansion and contraction of honing head is controlled by servo motor, both constant pressure feeding and quantitative feeding could be realized .

The workpiece is placed on two sets V-shaped workpiece carriers, pressed by the pressing plate.

1.5 Machine main structure:

1.5.1 Machine main parts

Machine bed, Honing box, 2set workpiece carriers, Honing bar support rest, Rack and pinion, Coolant system,Delta PLC control 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 and contraction of honing head, the servo motor drives the ejector pin to move axially through reducing mechanism .

1.5.3 Machine bed :

 

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

1.4 Workpiece clamping :

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

The rolling linear guide rail (as shown below) 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 .

The oil-receiving tray is mounted around the machine .

1.5.4 Honing box:

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

The servo spindle motor drives the spindle to rotate through the gear reducer, and the gears is 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, to clamp the workpieces with different diameter by replacing the pads with different thickness.

1.5.6 Honing bar support rest

 

Supporting honing bar in the process of honing and measuring.

3 sets, 1set is fixed on the machine bed, another 2sets move on the square 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 and rack are 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 :

PLC control .

The operation station is assembled on the machine bed,the operation panel can be 

turned manually to facilitate the operation of the machine.

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

2. Machine main technical parameters:

Specification			Parameter
Working Capacity	Hole diameter range		Φ20~Φ50mm
	Max. Honing depth		3000mm
	Max. Workpiece length		3000mm
	Workpiece OD range		Φ30~Φ100mm
Machine Performance	Z1 axis (honing head reciprocating movement)	Feeding speed range	1~20m/min
		Feeding motor torque	14.3Nm
	Z2 axis (Expansion and contraction of honing head)	Servo motor torque	2.39Nm
	Honing box	Rotary speed range	50~3000r/min
		Motor power	1.5KW
Coolant System	Max. flow		100L/min
	Filtering accuracy		20μm
Others	Machine floor size		9.2mx2.3m
	Machine total power		10KW

3. Machine main configurations list :

No.	Item Name	Supplier
1	PLC control system	DELTA
2	Main motor of honing box	Servo spindle motor
3	Spindle bearing	Chinese famous brand
4	Main electric components	SCHNEIDER or SIEMENS
5	Rack	Taiwan YYC

6	Magnetic roller filter	Chinese famous brand
7	Paper filer	Chinese famous brand
8	Servo feeding motor	Wuhan MAXISINE

4. Machine standard and optional parts:

Series	Standard Parts	Optional Parts
1	Machine bed	Honing head
2	Honing box	Honing bar
3	2sets 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

5. Processing accuracy :

Hole size accuracy: IT7~IT8

Surface roughness: Ra0.2~0.8um (depends on the honing stone used)

6. Documents provided :

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

7. 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

8. 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.).

1. 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

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