As a qualified provider of cnc machining parts aluminum, Honscn Co.,Ltd takes extra care in ensuring product quality. We have implemented the total quality management. This action has enabled us to produce a high quality product, which is achievable with the assistance of highly trained Quality Assurance Team. They accurately measures the product using high-precision machines and strictly inspects every step of production adopting high-tech facilities.
HONSCN products are receiving greater market recognition: the customers keep buying them; the word of mouth review is spreading; the sales continue to skyrocket; more new customers are flooding in; the products all show higher repurchase rate; more positive comments are written below every information we put on social media; great attention is paid to them every time our products are shown in the exhibition...
In tune with industry standard, we provide cnc machining parts aluminum and suchlike products at Honscn in various customized options and industry leading prices. Details can be found on the product page.
Project introduction
Customer products
This product is a mechanical part, and the processing structure is complex, so the size and relative position requirements are high. Therefore, the accessory needs to scan the data of the first industrial part in 3D, detect the quality error between the data and the design document, and analyze the mapping cost of mechanical parts to ensure the smooth progress of production.
Customer difficulties
After the customer's castings are processed, how to detect them has become a difficult problem. The customer has no way to detect the complex structure, many internal dimensions, important processing positions and relative positions.
Nanjing Ningrui handheld 3D laser scanner
The customer recognizes that the measuring equipment
The customer learned about our hand-held 3D laser scanner of Nanjing Ningrui metrology through the introduction of a friend, and checked the relevant knowledge on the Internet. He thought it was too suitable for the mapping of mechanical parts they wanted, so he found us.
Introduction to 3D laser scanner
When the portable 3D scanner T-scan works, the six beam laser is used to obtain the three-dimensional point cloud on the object surface. The operator can hold the equipment in his hand and adjust the distance and angle between the instrument and the measured object in real time. The operation is flexible, convenient and easy to learn. When scanning large volume objects, it can cooperate with the global photogrammetry system to eliminate the cumulative error and scan the size, shape and working environment of the scanned objects efficiently and accurately.
Operation of handheld 3D laser scanner and photogrammetry on products
Solution
The hand-held three-dimensional scanner is a mechanical mapping equipment. Firstly, the positioning mark points should be quickly pasted on the scanned products, and then the three-dimensional data of workpiece surface shape can be obtained quickly and accurately by using the mark points pasted on the workpiece surface through non-contact three-dimensional laser scanning; After the scanner obtains the high-precision data, the obtained data is compared with the existing digital analog, so as to obtain the product deviation and carry out cost analysis.
Scanning process
It takes 7 minutes to paste the marked points;
Data post-processing and comparison for 45 minutes.
Process display
3. Data comparison
summary
The grooved parts of the rotor body in the machine conform to the fit of the rotor gear and change the old comparison method. The use of 3D laser scanner is not only convenient and fast, but also can more accurately grasp the accuracy of each position, which brings better service to customers.
Reverse / comparative product presentation LW
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.
Brand of moisture meter: Boshi Model: bos-180a series Test item: automotive plastic sheet
The water content of plastics is a key reason affecting the production process, commodity appearance and commodity characteristics of resin materials such as polyethylene (PE) and polypropylene (PP). In the injection molding process, if the plastic raw materials with excessive water content are used for production and manufacturing, it will cause some production and processing problems and affect the product quality, such as cracking of the surface layer, reflection, wear resistance, reduction of material mechanical properties such as service performance and tensile strength, etc. Therefore, the control of water content is particularly important for the production of high-quality plastic products.
Testing water content is a necessary step in the production of plastic materials. Testing moisture content is basically divided into national standard method and rapid moisture tester method. Boshi plastic rapid moisture tester is a widely used instrument and equipment at present.(auto plastic parts)Test steps:
1. First, take out the moisture meter, place it and power it on, then break the test material into small pieces, pour out about 6 grams of plastic pieces and pour them into the stainless steel tray. In order to dry and dry the plastic thoroughly during the test, we spread the fine pieces of plastic parts into a scattered form so that the temperature can penetrate into the plastic parts. Use tweezers to lay small pieces of plastic parts evenly. In order to avoid the zoom and blackening of small pieces of plastic parts after baking, we set the temperature at 105 , press the "start" key to start the test for 1 minute and 49 seconds, and then the test ends, and the test data displays 0.3%;
2. In order to obtain more stable data results, wait for the moisture meter of plastic parts to cool down before the second test. When the temperature of the instrument itself drops below 40 , also take about 6 grams of small pieces of plastic parts into the stainless steel tray, and lay the small pieces of plastic parts evenly. This time, we set the temperature at 105 , press the "start" key to start the test, and the test ends after 1 minute and 38 seconds, The test data showed 0.29%;Test data:From the above tests, we found that the moisture of these plastic sheets was well controlled and the moisture distribution was relatively uniform, which promoted the plastic parts to be completely dry after the test, and the moisture data results were also very good.
matters needing attention:1. Small pieces of plastic sheets shall be small enough to ensure the complete drying of water in plastic parts, and shall be evenly spread on the tray as far as possible, rather than simply stacked together.2. Do not set the temperature too high to prevent the plastic parts from melting in case of high temperature. The moisture meter of plastic parts has its use environmental restrictions. Please use it under the environmental conditions specified in the product operation manual. Do not operate in harsh environments.
3. As the instrument is a precision instrument, do not knock the workbench or vibrate the instrument during heating, otherwise the measurement will be inaccurate.4. After the test, do not touch the tray for the Yi first time to avoid scalding.Editing: JQ
Nowadays, smart phones have changed from plastic back cover to thin metal body. Although the smart appearance attracts consumers, the production process of mobile phone case parts suppliers is more difficult. Only because the cutting and processing of the case requires quite high precision, even if it is only a small deviation, it may cause workpiece scrapping and erode profits.
In order to improve the yield of CNC processing, mobile phone box manufacturers are often forced to change tools frequently to ensure that CNC machines maintain a normal production beat, but this leads to an increase in the cost of consumables and also affects profits. In addition, the mobile phone case processing industry attaches great importance to the production rate, for fear that the sudden failure of CNC cutting machine will lead to negative chain reactions such as production capacity decline and delivery delay, which will damage customer satisfaction and goodwill. Therefore, it allocates manpower to carry out regular inspection and entrusts outsourcers to provide second-line maintenance support, but these methods are passive, It is difficult to effectively deal with abnormal conditions at the first time.
Mobile phone case is one of the cases of CNC machine application. CNC cutting is widely used in various processing and manufacturing, and various suppliers are facing a similar profit defense war. Xu Changyi, manager of Linghua technology measurement and automation products division, believes that whether you want to improve the machining accuracy or increase the productivity, the axe bottom salary drawing plan is to monitor the cutting process, especially the vibration monitoring, mainly because once the vibration value of the machine rises beyond the reasonable range due to imbalance, resonance or misalignment, It is easy to affect the operation of the machine, resulting in fault shutdown.
PC based monitoring solution is better than PLC solution to capture fine vibration signals
If the CNC processing machine can be endowed with intelligence and built with a set of full-time vibration monitoring mechanism, it can diagnose the health state of the machine at any time. Instead of waiting for the output of the final finished product and judging the cause of the abnormality afterwards, it can detect the unusual state of the processing machine in real time through preventive detection in advance and take corresponding treatment measures quickly, Including optimizing and adjusting processing parameters (such as changing spindle speed), or changing tools, etc. to solve small deviations immediately and avoid causing major disasters in the future.
It can not be denied that the cutting vibration monitoring of CNC machining machines is not a new topic at this moment. In the past, there were some PLC solutions with the demand of simplicity and convenience, which boasted that as long as the CNC machine was connected, it could produce utility quickly; Therefore, it is inevitable that some people wonder why PC based monitoring scheme is needed since PLC is available to assist in cutting vibration monitoring?
The so-called devil lies in the details. Some subtle vibration signals or high-frequency signals reflect some facts to some extent. It may be that the connecting mechanism begins to be unbalanced, the rotating spindle bearing ball breaks and affects the transmission power, or the fasteners become loose, which means that the CNC machining machine begins to "get sick", and the symptoms are different with the different machine characteristics; These subtle and changeable signs are not easy to capture by virtue of the PLC solution with the characteristics of low sampling rate, supporting limited bandwidth range and fixed algorithm. If the CNC monitoring solution can capture small changes and help users quickly grasp the key factors that may lead to reduced accuracy or capacity decline, they can respond as soon as possible.
In view of this, Linghua launched a cutting vibration monitoring scheme called mcm-100, which boasts that it can carry out 24-hour continuous data acquisition and vibration measurement for rotating transfer machinery and equipment under the condition of high precision and high sampling rate, and integrate the functions of data collection, vibration analysis and calculation, operation, Internet access and so on, Assist CNC machine users to successfully solve various challenges faced by traditional cutting process, and endow CNC machine with intelligence in the most relaxed and burden-free way.Achieve the wonderful effect of preventive maintenance through high-precision monitoring
Xu Changyi explained that generally speaking, there are three detection situations that CNC machines most want to establish. One is "spindle vibration detection", which aims to monitor the vibration of the spindle during cutting. The method is to directly measure the RMS value of the time domain signal. If it exceeds the critical value, reduce the speed or stop running; The second is "bearing quality diagnostic tic", which is intended to diagnose the health status of bearings. It is carried out when CNC does not perform cutting and only idles at high speed; The third is "spindle collision detection", which is used to detect the spindle collision. When the vibration wave pattern meets some default conditions, it is judged that the collision has occurred, and the spindle movement is stopped immediately.
The above situations 1 and 2 are closely related to the accuracy and bandwidth range of vibration signals. PLC solutions can capture very little information, which is difficult to help users establish contingency strategies; In contrast, mcm-100 not only has 24 bit high resolution capability (generally falling in the range of 12 or 16 bit), but also can capture high-frequency signals with a sampling rate of up to 128ks / S (generally only supporting 20Ks / s or even lower), so as to provide users with more vibration analysis materials.New business opportunities for CNC machine equipment manufacturers
On the other hand, the cutting vibration monitoring scheme can also create new business opportunities for CNC machine equipment manufacturers. As CNC machine equipment suppliers are exposed to a large amount of vibration information, once combined with big data analysis, they have a more thorough understanding of the correlation between signal changes and machine failures. CNC machine equipment suppliers can make good use of the accumulated knowledge assets, give birth to value-added services, and even adjust their business model from selling out equipment to selling machine operation hours, Establish long-term stable income. According to Linghua technology, the operator of PC based cutting vibration monitoring scheme, the vibration monitoring scheme has entered the landing stage and has been adopted by various well-known CNC tool machine manufacturers, and its demand has increased significantly in 2017, which shows that both CNC processors and CNC tool machine manufacturers have increasingly keen demand for CNC cutting vibration monitoring scheme.