Objective of Hydraulically powered tapping machine

            The objective of this report is to build a hydraulically powered tapping machine. In this report, there are two circuits of hydraulic. One circuit is a vise control circuit, and the other is a spindle control circuit. The other objective of this report is to understand the hydraulic symbols. Understand the devices and valves of hydraulic components.

Equipment of Hydraulically powered tapping machine:

·         Motor

·         Reservoir

·         To control the hydraulic oil tank is used

·         A pump

·         Power source

Narrative of Hydraulically powered tapping machine

The technology of hydraulic system deals with the control, generation as well as using the pressurized fluid transmission of power. This is not false if someone says that power is the main thing which moves this industry. The reason behind this is that fluid power is used to regulate, push, pull and virtually drive all the machine of the latest industry. There are seven basic components of the hydraulic circuit .

 Reservoir this is used for storing the fluid in it. The other component is Pump which is used to transfer power to the fluid through the motor. The next component is the motor that is used to supply the power to run the circuit. The fluid pressure, direction as well as the flow rate is controlled by the valves. From fluid extracts the power actuator help in this. The conductor is one of the components of that is used to constraints fluid as well as allow to be pressurized the fluid.  Removes the heat, lubricates, transfer power as well as seals component this is done in the fluid section.

Figure 1: Hydraulic circuit

In the figure above hydraulic system consists of a reservoir fluid by an internal combustion engine a hydraulic pump is driven. The schematic diagram of this circuit is given in the below section. The graphical symbol is developed by the American National standards institute as well as adopted by the ISO (valvehydraulic).  

 

Figure 2: Schematic of hydraulic

Weight	Calculated	Cylinder A	Cylinder B
1	1.33	1.20	1.40
2	2.67	2.50	2.80
3	4.00	3.90	4.20
4	5.33	5.10	5.50
5	6.67	6.40	7.00
6	8.00	7.90	8.50
7	9.33	9.00	9.70
8	10.67	10.20	10.90
9	12.00	11.80	12.40
10	13.33	13.00	13.60

 

Analysis of Hydraulically powered tapping machine:

In this experiment build a hydraulic powered tapping machine that is operated simply. The specification of the machine is as follow: 1000psi is the maximum pressure of the system. And by the electric motor, it must use the single pump.  When the vise is unclamped spindle can’t rotate.  The maximum force of the vise clamping is 2000 lb. the maximum torque of spindle is 80 ft-lb at the speed of 40 RPM, and the minimum weight is 20ft-lb, and the speed is 120 rev/min. the range of the speed is 40 to 120 rev/min.

The three position valves are used in the vise control circuit. To clamp apart one position should close the vise, and the second one is freezing the vise in place at the center position as well as the last one is used to open the vise. The other circuit is a spindle control circuit that is operated by the three valves. One is used for turning the spindle in a clockwise direction and the second one is used to lock the spindle in the right place, and the last one is used to rotate a spindle counter clockwise.

And the torque of spindle and the clamping force of vise should be adjusted manually. In the above, we draw the hydraulic circuit; also the schematic diagram is made with the appropriate symbol of hydraulic. Within the laminar range, all velocity should be kept. Laminar flow is a desirable response as in this flow the hydraulic system move in a smooth transition from one point to another point; within the fluid, there is no turmoil. This flow is known as laminar flow. For the maximum operating conditions, the pressure and velocities are calculated (Krishna).

Calculation of Hydraulically powered tapping machine

Conclusion of Hydraulically powered tapping machine

It is concluded that in this experiment we are only concerned about building a hydraulic tapping machine. For tapping operation, a pneumatic technique is recommended to overcome the problems that are faced through the conventional method. In the experiment, we designed the schematic of the hydraulic tapping machine. The proper graphically symbol is used for this. Also, it is recommended that calculate the sample value and also calculated the pressure and volume of the machine. This machine is work on 100 % accuracy, but in practical life, this is not possible that tapping machine is work with a hundred percent accuracy. This is performing in laminar flow as this the desirable result that is wanted to achieve. The graph shows the result in linear as this is stable.