Common Problems and Solutions of Automatic Punching Machine

What to do when problems occur with automatic punching machines?
As the source manufacturer of automatic punching machines, we are aware of the common problems that may occur during the process. From surface damage marks on machined parts and power supply shortcomings to "jamming" of different moving parts or inaccuracies in machined parts, these problems occur throughout the planning.
In this article, we will examine the answers to some of the common problems faced in automatic punching machines and suggest ways to deal with them. According to our experience, most of the problems workers face when using automatic punching machines revolve around the following issues.

1、Use of negligent tools
Choosing a negligent tool generally damages the finish of the material. This can be seen as rough edges, cutter marks on the surface, raised marks or damage marks on the edges or nooks of the material. The fault may cause a lot of wear on the tool.

Poor material finish may be caused by the tool used being too dull or having an incorrect feed rate ratio. It may also be caused by a failure in the scale, quality, or material match of the tool at hand. To deal with this problem, it is important to select the correct tool for the job and material.

2、Programming faults
As a highly messy device controlled by a CNC system, many of the problems presented in automatic punching machine processing generally come from programming. These are perhaps due to a lack of understanding of the different G and M codes used for the controller, setting faults or entering faults in the data variables into the CNC control system.

In order to deal with these faults, it is important to give new operators adequate training on the different approaches to programming automatic punching machines. Machine suppliers or experienced operators should supply new operators with comprehensive user manuals and drills, motion sequences, and machine operation.

3、poor machine maintenance
Modern machines with multiple, constantly moving mechanical parts require punctual cleaning and maintenance of the machine in order to maintain the best operating conditions.
Failure to eradicate dust, material and other debris will lead to the accumulation, with the passage of time may lead to inaccurate processing, or even lead to machine shortcomings. Stainless Steel Automatic Perforating Machine
To prevent this, it is vital for machine operators to follow the specific maintenance principles of the machine they are using. They should also check the level of the coolant or airflow (e.g. air filter) on a regular basis to ensure that operation continues smoothly and without interruption.
Note: Because the air filter in the cooling system is clogged, perhaps leading to spindle overheating.

4、Lack of worker skills and drills
With the increasing use of accounting and programming, automatic punching machine operators now require a different set of general knowledge and skills. Without the right organization, planning and programming skills, even if workers who have previously used earlier machine models have machining skills and experience, they will not be able to optimize the output of these machines.

To ensure that this problem is handled, you need to hire the right machine operators who can visualize and plan the machining process, select the right things and subordinates for the job, and write the program.

5、Clamping/unclamping problems of collets and fixtures
This may be a primary problem when the workpiece to be machined cannot be held firmly by the chuck, or perhaps when movement or vibration occurs during the machining process. To deal with this problem, consider the following process.
Check that the jaws used are correctly positioned for the equipment and are sufficient to hold the material. Ensure a wider surface clamping force rather than a point clamping force.
Check that the lubricant is suitable for the different parts of the chuck and that there is no dust or debris to interfere with the movement.

Note: Improper clamping of machine parts can lead to accidents, damage or more serious consequences - endangering the operator! Therefore, it is essential that the parts are necessary to be correctly clamped by the machine tool.

6、power supply problems
Sometimes, the display or other parts of the automatic punching machine may not work because of power supply problems. To deal with this problem, make sure that the correct power supply and voltage is used on the input side of the power supply and power source. You should then check to see if the output or secondary side is operating properly.
If there is no power or the voltage reading is low, consider disconnecting the output line with the power supply off, then power up and check the output side from the beginning. You can also check for proper operation of the LEDs on the machine and check for blown fuses.
The need for a stable power supply is fundamental to the flawless operation of any automatic punching machine.

Note: Please call an expert to check the electrical parts or connections.

7、Automatic knife change problem
Sometimes, you may face challenges in automatic punching machine using automatic tool changing equipment. This can be dealt with by learning each process of the tool replacement process and by diagnosing the problem.
Check to see if the base, gripper arm, tool holder, support arm and tool magazine are operating properly and smoothly. Or check the rotation and robot arm movements to make sure they are working properly. Also insist on checking the automatic tool change equipment and tool holders without chips and coolant.

8、Machine vibration/chatter
When your automatic punching machine vibrates during operation, it may greatly shorten the life of something, affect the durability of the CNC machine or damage the quality of the machined part. You can only detect this by the noise that occurs - sometimes it may be loud!
To deal with this problem, you need to diagnose whether it is workpiece chatter or tool chatter. You can also adjust the RPM of the machining process so that the frequency of the machining process does not resonate with the material frequency.

Note: For machining centers, it is necessary to use a balanced tool holder when the spindle speed is higher than 8,000 rpm. Otherwise, the vibration traces are presented primarily on the machined parts. This is followed by shortening the life of the thing and finally the shortcomings of the spindle bearing.

9、Machine overheating
For high volume and long processing, overheating may sometimes occur. The internal temperature of your CNC machine may reach 150 degrees or higher. This may have a negative impact on your work, the tools used and the automatic punching machine itself.
To prevent this, make sure that you keep all aisles clean and clean the machine so that it is free of dust, dirt and material. Make sure that all metal chips and cutting fluids are cleaned regularly.
Overheating of the machine spindle is mainly caused by extensive use at maximum speed. Lubricated spindles cannot be used at full speed for long periods of time. Air-lubricated spindles are better, while oil-lubricated spindles can operate for long periods of time even at maximum speed.
The change of ambient temperature in the workshop can also affect the overheating of the machine. Wind/air currents through doors or open windows can affect the accuracy of fine machines.
A wide window that allows the sun to shine freely, plus a cool air cooler may be pleasant to your operator, but because the machine will deform throughout the axis, the machine will not like it at all.