4.2 Main components
The machine is mainly composed of main parts such as left and right saw heads, bed bodies and work tables.
4.2.1 Saw head
The left saw head is a fixed saw head, and the right saw head is lubricated with the oil on the round rail of the right saw head on the round rail, so that the left and right movements of the saw head are faster and more flexible, ensuring the smoothness of the movement. The feed of the saw blade is completed by a variable-speed work cylinder. Its cylinder has the function of stepless speed regulation. According to the processing needs, the feed and return speeds can be adjusted so that they have the function of slow feed and rapid retreat.
It is made of low-carbon steel plate welded by bending after forming, there are stiffened ribs inside, after welding and after aging treatment to ensure that the bed has enough rigidity and stability.
The fixed table is mounted together with the left saw head; the movable table can be horizontally moved horizontally with the carriage on the guide rails.
5, system description of the product
5.1 Pneumatic Control System
The pneumatic control of the machine consists of two parts: (1) sawing the work into the cylinder; (2) clamping the work piece cylinder. The gas source is introduced into the air source processor inlet of the machine tool through the air pipe, and is connected to each air supply point through the internal pipeline. Its working principle is shown in the attached diagram 11.1. Briefly stated as follows:
188.8.131.52 Feed motion of the saw head. After the solenoid valve is energized, it will change direction. Compressed air enters into the rear chamber of the cylinder and the saw head will advance. The solenoid valve will be de-energized and the five-way solenoid valve will be reset. Compressed air will enter the cylinder. Cavity, saw head back.
5.1. Workpiece clamping; Workpiece clamping is achieved by the clamping cylinder action. After the solenoid valve is energized, the two-position five-way solenoid valve is reversed, compressed air enters the rear cylinder chamber, and the workpiece is clamped. After the “clamp” knob is dialed back, the solenoid valve is de-energized and reversing, and the clamping cylinder is released. At this point, the first machining process is completed.
5.2 Electric Control System
The circuit control system consists of a main circuit and a control circuit. The schematic diagram is shown in the attached schematic 11.2 electrical schematic diagram. The main circuit includes a power switch SO, a low voltage circuit breaker QF, a double saw motor M1, M2, and a carriage motor M3. QF overloads the motor with overcurrent protection. The control circuit includes a head work selection switch SA2, a drag board control selection switch SA3, a left and right saw head start button SB3, a stop button SB2, a drag motor start button SB4, a pressure valve IYV, and a work feed valve 2YV, 3YV. ST1 and ST2 provide left- and right-direction limit protection to the pallet motor, and the indicator HL circuit indicates. SB4 is an emergency stop button.
6, transportation and storage
This machine tool must prevent severe jolts during transportation to prevent the machine from slipping and tipping during transportation.
7, installation and debugging
After the machine arrives at the user's place of use, it is checked out of the box. If there is no cloud shipping damage, you can use the moving tool to move the machine to the installation location.
The machine tool should be used in a factory building with hard, flat concrete floors. Hold the leveling base on the machine's leg, adjust the machine to horizontal, and tighten the lock nut of the adjustment screw.
7.2 access: three-phase four-wire 380V 50HZ
7.3 Grounding: The fuselage must be grounded. The grounding resistance of the insulated wire with a sectional area larger than 2.5 mm2 and a combination of soft copper core and greenish yellow should be no more than 4 ohms.
7.4 Air connection: Working pressure 0.5-0.6Mpa. Connect the air source to the joint of the air source and inspect the pneumatic system for air leakage.
8, use and operation
8.1 Adjustment before Operation
8.1.1 Adjusting the Position of the Clamping Cylinder Place the profile to be machined on the machine table, adjust the clamping cylinders of the two saw heads to the most suitable position for clamping the workpiece, and then securely clamp the cylinder.
8.1.2 Adjustment of Blade Feed Speed
During the test process, if it is considered that the feed speed of the saw blade is not suitable, the speed control valve on the work cylinder can be adjusted to increase or decrease the feed speed. The required feed rate can be obtained.
8.2 sawing angle adjustment
After the machine tool has been installed according to the above points, it will be tested for 30 minutes if it meets the regulations. If no abnormality occurs, it can be debugged.
8.2.1 90° adjustment
Generally, the machine tool is only manufactured after passing the debugging inspection. Therefore, it can be directly sawed to check whether the cutting angle meets the requirements. The error is ±10'. If it does not meet the requirements, you can adjust the height of the bolt below the oscillating plate and repeat the sawing to make it meet the requirements. Then tighten the nut on it.
8.2.2 At a 45° angle, saw a profile and verify that its 45° meets the requirements with an error of ±10. If it does not meet the requirements, adjust the height of the limit screw on the carriage. Tighten the locking handle.
8.2.3 -45° adjustment
Loosen the locking handle, pull out the positioning shaft, rotate the gear shaft handle, insert the positioning shaft when the angle plate is turned to more than -45°, then the handle rotates to press the positioning plate of the angle plate positioning block and saw a profile, Check whether the 45° meets the requirements and the error is ±10′. If it does not meet the requirements, adjust the height of the limit screw on the sector block, repeat the sawing and measurement to meet the requirements, and then tighten the nuts on the screw. , Tighten the locking handle.
8.3 Profile Cutting Length Adjustment
After adjusting the angle, adjust the length of the blank. Dial the "pull board selection" switch to the "left" or "right" position, press the "pull board jog" button, the approximate position of the processing length of the saw head movement, let go, and then dial the "pull board selection" switch To "stop" position. Turn the handwheel while looking at the vernier to position the right saw head to the exact position. The scale indicates the length of the long side of the workpiece.
See operation flow chart
9, maintenance and maintenance
9.1 When the saw head feed guide needs to be lubricated, open the motor cover, inject the oil into the lubrication hole with a lubricator, and pull the motor slide back and forth several times, and then install the cover. Once in each class.
9.2 The lubrication of the cylindrical rail of the bed adopts 40° mechanical oil, which is twice per household.
9.3 Carriage movement The aluminum dispersant grease is used in the reduction gear box. The addition amount is about 0.5 kg, and it is replaced once a year.
9.4 Always insert the lubricant into the front and rear bearing seats and other activities.
9.5 Adjustment of air source processor (water-diverting air filter, pressure gauge, and oil mister), diverting water filter for every class, cleaning once a week, pressure gauge adjusted to 0.5-0.8Mpa, oil mister guaranteed The oil level (20# mechanical oil) is adjusted to about one drop per minute.
9.6 The machine tool should be cleaned frequently. After each work shift, it is necessary to remove the plastic shavings in time, wipe away the guide rails and dust on the surface of the machine tool. The exposed surface of the circular guide rail must be filled with oil and evenly applied.
9.7 After every 5000 hours of operation, the saw head spindle thrust bearing shall be cleaned, and 7018 high-speed bearing grease or lithium-based grease (SY1412-75) shall be added. The grease loading shall be about 1/3 of the bearing space, and the bearing will not reach. The accuracy should be replaced.
10, common faults and their elimination
10.1 When the air compressor and lathe are started, if the pressure of the pressure regulator fails to reach the working pressure, first check that the output pressure of the air compressor reaches the working pressure; if the air compressor meets the working pressure, check the pressure regulator Whether the valve spring is broken or if there is a leak in the pipe for timely replacement.
10.2 When the oil mist eliminator does not dribble during operation, check whether the flow of the inlet gas is reduced, whether the oil pin hole is blocked by dust, and if any problems are found.
10.3 If electrical and pneumatic systems fail, refer to electrical schematics and pneumatic schematics. Use reverse search and segmented analysis to find out the cause.
If you are interested in our punch tool, please contact us freely as following:
Shenzhen P-luck Machinery Technology Co,.ltd
No10-1, tongfuyu yongshengtai industrial park, Longtian Village, Kengzi town, Pingshan District, Shenzhen city
post code: 518112
contact person: lily shen