The cnc fabrication bushing, of great significance to Honscn Co.,Ltd, is mainly characterized by unique design and wide applications. In addition to the standard version, our team of professional designers is able to offer custom service according to the specific requirement. Its wide applications, in fact, are a result of the advanced technology and clear positioning. We will make continued efforts to optimize the design and expand the application.
Before making decisions on the promotion of HONSCN, we carry out research in each aspect of our business strategy, travel to the countries we want to expand into and get a first-hand idea of how our business will develop. Thus we understand well the markets we are entering, making products and services easier to provide for our customers.
To achieve the promise of on-time delivery that we made on Honscn, we have seized every opportunity to improve our delivery efficiency. We focus on cultivating our logistics staff with a solid foundation of theories except for their being engaged in logistics transportation practice. We also choose the freight forwarding agent meticulously, to guarantee the cargo delivery to be delivered fast and safely.
Shenzhen Honscn is a professional manufacturer of CNC Machine Parts, Auto Lathe Machine Parts, and Screw Fasteners. We offer OEM and ODM service with any related products for customers. We have a professional team of product design and engineers, as well as a professional QC team, our sales and documentation and logistics departments can finish the requirements of presentation of documents under various payment methods and different transportation modes.
• We can make offcial drawings based on customer request, or customer will provide their drawings for us to quote price and make samples for approval.
• After receiving the samples, customers will do a test for the material, size and tolerance. If customer need to change the size or material, we can arrange second samples for approval. Until customer approved the samples, then we will confirm large order.
Meantime, we will test it before shipping samples. And all tests are strictly carried out according to industry standards.
• If confirmed the sample okay, the customer needs us to provide the Mill Test Crtificate of this product conforming to EU standards, such as CE, RoHS, REACH before placing order. All of our products are in accordance with all the European certification, such as CE, RoHS, REACH, etc., and all of them have prepared standard documents for customers checking.
• We start to prepare the order materials when customer confirm all the details such as material, size, tolerance, surface finish and other details of the final sample.
After the package such as qty, label, shipping mark etc. are provided by customer, we starts to arrange the mass production. After all the goods finished, send pictures to customer for approval. We promise the packag is same as customer requested, mass products are exactly the same as the final samples. The following photos of the shipment, the passing rate of the third-party inspection of our company is 100%.
• After receiving shipment of whole order, customer put it on the market immediately and became the most popular product in the market quickly, no matter from the traditional market, the market of high-end professional fasteners or the online sales in Amazon. We always pay much attention to the quality of our products, which is recognized by customers and repurchased constantly.
1 Tool change of hat type magazineThe fixed address tool change mode is mostly adopted, and the tool number is fixed corresponding to the tool seat number. The tool change action is realized by the lateral movement of the tool magazine and the up and down movement of the spindle, which is referred to as the spindle tool change mode for short. Because it has no tool change manipulator, the tool selection action cannot be preselected before the tool change action. The tool change instruction and tool selection instruction are generally written in the same program segment, and the instruction format is as follows:M06 T
When the command is executed, the tool magazine first turns the tool holder corresponding to the tool number on the spindle to the tool change position, and switches the tool on the spindle back to the tool holder, and then the tool magazine turns the tool specified in the command to the tool change position and changes the spindle.For this tool magazine, even if TX x is executed before M06, the tool cannot be preselected, * the action of final tool selection is still executed when M06 is executed. If there is no TX X in front of M06, the system will give an alarm.2 Tool change of disc and chain magazine
Most of them use random address tool change mode. The corresponding relationship between tool number and tool seat number is random, but its corresponding relationship can be remembered by NC system. The tool change of this tool magazine depends on the manipulator. The action of the command and tool change is: the tool command TX controls the rotation of the tool magazine and turns the selected tool to the tool change working position, while the tool change command M06 controls the action of the tool change manipulator to realize the tool exchange between the spindle tool and the tool change position of the tool magazine. The tool selection command and tool change command can be in the same program segment or written separately. The actions corresponding to tool selection and tool change command can also be operated simultaneously or separately. The instruction format is as follows:
Tx x M06;When the command is executed, the tool magazine first turns the TX tool to the tool change position, and then the manipulator exchanges the tool of the tool magazine with the tool of the spindle to realize the purpose of changing the TX tool to the spindle.After reading the above two methods, it can be seen that method 2 overlaps the tool selection action with the machining action, so that when changing the tool, it is not necessary to select the tool and change the tool directly, which improves the work efficiency.
As mentioned earlier, the tool change command of the tool magazine is related to the machine tool manufacturer. For example, some tool magazines require that not only the Z axis must return to the tool change point, but also the Y axis must return to the tool change point. The program format is as follows:
When writing the instructions of tool selection and tool change in the same program section, the execution rules of tools from different manufacturers may also be different. If any, regardless of the writing order, the rules of tool selection and tool change shall be followed. Some rules stipulate that the tool selection command must be written before the tool change command is executed. Otherwise, the action is to change the tool first and then select the tool, as shown in the above program. In this case, if the tool selection command is not written before the M06 command is executed, the system will give an alarm.
1. Fault phenomenonWhen changing the knife, the manipulator is stuck and cannot change the knife. The position of the manipulator for changing the knife is offset, and the knife is changed.2 fault analysis and treatment
2.1 tool change principleThe machining center is a rotary tool magazine, and the tool change mechanism is cam type. The tool change process is as follows:(1) Write m06t01 to start the tool change and tool selection cycle.
(2) The spindle will stop at the oriented spindle stop point, the coolant stops, and the z-axis moves to the tool change position (second reference point).(3) Select the tool. After NC compiles it to PLC according to the t command, start selecting the tool. The tool magazine motor rotates and rotates the target tool number to the tool change point of the tool magazine. Note that the t command is the tool sleeve position of the tool magazine at this time.(4) The tool change motor drives the cam mechanism to rotate 90 from the parking position to grasp the tool in the effective tool sleeve and the tool in the spindle. At the same time, detect the change of the proximity switch state of the cam mechanism, the PMC output sends out the tool loosening command, the tool magazine tool sleeve tool loosening and the spindle tool loosening solenoid valve are powered on, the cam continues to rotate, drive the manipulator down, push down the tool handle and prepare for exchange. As shown in Figure 1.
(5) The manipulator rotates 180 to exchange the tool, the cam continues to move upward, install the tool into the spindle, and install the tool on the original spindle into the tool sleeve at the tool change position of the tool magazine. At the same time, the detection switch sends a tool tightening command to PMC, the solenoid valve loses power, the shaft tool handle is clamped, the butterfly spring retracts, and the spindle tool is clamped.(6) Change to the manipulator, continue to rotate 90 , and stop completing a set of tool change actions.2.2 fault analysis
Change the tool to the fourth step of 2.1. The tool change manipulator is stuck, and the spindle has been loosened for blowing, but the tool cannot be pulled out. Cut off the power and manually turn the tool change motor. After completing a tool change action, manually load and unload the tool, the action is normal, and the problems of spindle tightening tool are preliminarily eliminated. When the tool change process is performed again, the manipulator gets stuck and the manipulator claw at the tool magazine falls off. After the tool change is found, the manipulator installs the tool on the spindle and the position is offset, as shown in Figure 2.
After the tool is removed, it is found that the action is normal. The reason for this situation may be the offset between the manipulator and the spindle, or the deviation of the accuracy of the manipulator axis relative to the spindle axis, and the inaccurate positioning of the spindle will also lead to the offset of the tool change position. Implement the tool change action step by step, check the accurate positioning of the spindle, and eliminate the fault caused by inaccurate positioning. According to the table, the mechanicalThe axial position and rotation center distance of hand, knife sleeve and spindle are consistent, so the fault of mechanical jamming of mechanical mobile phone is also eliminated.
Recently, this machine tool mainly processes stainless steel and other material workpieces, with large cutting volume and heavy load. It runs under re cutting for a long time. It is found that the manipulator is not loose and the telescopic action of the manipulator claw is flexible. However, it is found that the adjustment block on the manipulator is worn. It is disassembled and observed that the adjustment block is mainly used to clamp the tool handle. After re repair and processing, try again, The offset disappears at the spindle position. The main cause of this fault is the large impact of the manipulator and frequent tool change, resulting in the loosening and wear of the clamping claw, as shown in Figure 3.
The machine itself is responsible for a lot of the precision; however, the operator and the programmers play a big role as well as the facility itself. Proper temperature control and good conditions allow for accuracy as much as 20 millionths in some instances.
Tolerances of CNC machines completely depend upon the type of CNC machine that is being used to complete the project. Each machine offers different tolerances. Of course a machine that operates off of several different axes will allow for closer, more specific tolerances. The four and five axes machines can produce specifically design parts that need precise measurements in order to work. Very tight tolerances are possible.
Exacting tolerances of 0.00004" to 0.004" is possible. (Otherwise, one to one hundred microns) Because these machines are computer numerical controlled (CNC) the possibility that production can be this precise is easy. No more do operators have to make sure that the placement of the material is precise and so on in order to achieve these standards. The computer technology can grind, cut, sand, etc to the dimensions specified by the program. They will be extremely close if not all the way there.
One of the great benefits of CNC machining is the ability of high tolerances on a repetitive basis. Because the machines are computer operated, repetitive work is easy to perform. The machine keeps running to the programs specifications until the work is complete. Another job that comes months down the road that has the same specifications can be performed easy. It just takes the downloading of the original program and the exact same specifications and tolerances will be repeated with this batch of work as well. Repetitive, high tolerance machining is one of the added benefits of CNC machining.
Tolerances are directly related to the quality of the CNC machines. This is why you will find that different companies who offer CNC machining services can offer different tolerances. Some may offer 0.001" tolerances and others will offer a variety of different tolerances. The higher the quality of the CNC machine and the programs that operate it, the better tolerance that you will be able to get.
Programmers, machinists, operators and the machines, have to work in direct relationship to one another. If all aspects are all the same page, the better the performance. If you have quality programmers and machinists, you will be able to get better performance out of your machines. It takes individuals who are skilled and knowledgeable in the area of CNC machining to perform to the best of the machines ability.
If you have any questions about ask your dealer of the CNC machines. They should be able to answer any questions that you may have and can explain the whole process better to you.