Surveying and mapping of mechanical parts
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. The unmarked shape tolerance shall meet the requirements of gb1184-80.
2. The allowable deviation of unmarked length dimension is 0.5mm.
3. Unspecified fillet radius R5.
4. All undeclared chamfers are C2.
5. Blunt acute angle.
6. Blunt sharp edges, remove burrs and flash.
1. There shall be no scratch, scratch and other defects damaging the part surface on the part processing surface.
2. The machined thread surface shall be free of defects such as black skin, bump, random buckle and burr.
Before painting, rust, scale, grease, dust, soil, salt and dirt must be removed from the surface of all steel parts to be painted.
3. Before derusting, remove grease and dirt on the surface of iron and steel parts with organic solvent, alkali solution, emulsifier and steam.
4. The time interval between the surface to be coated by shot peening or manual derusting and the primer shall not be more than 6h.
5. The surfaces of riveted parts in contact with each other must be coated with a thickness of 30 40 before connection M antirust paint. Lap edges shall be closed with paint, putty or adhesive. The primer damaged due to processing or welding shall be repainted.
3 Heat treatment of parts:
1. After quenching and tempering, HRC50 55.
2. Medium carbon steel: 45 or 40Cr parts are subject to high-frequency quenching, tempering at 350 370 , and hrc40 45.
3. Carburizing depth 0.3mm.
4. Carry out high temperature aging treatment.
4 Technical requirements after finishing
1. The finished parts shall not be placed directly on the ground, and necessary support and protection measures shall be taken. 2. The machined surface shall be free of rust, corrosion, bumps, scratches and other defects affecting performance, service life or appearance.
3. There shall be no peeling on the surface finished by rolling.
4. There shall be no oxide scale on the surface of the parts after heat treatment in the final process. The finished mating surface and tooth surface shall not be annealed
5 Sealing treatment of parts:
1. All seals must be soaked with oil before assembly.
2. Before assembly, strictly check and remove the sharp corners, burrs and foreign matters left during part processing. Ensure that the seal is not scratched during installation.
3. The excess adhesive flowing out shall be removed after bonding.
1. After the gear is assembled, the contact spots and backlash on the tooth surface shall comply with the provisions of GB10095 and gb11365.
2. The reference end face of the gear (worm gear) shall fit the shaft shoulder (or the end face of the positioning sleeve), and it cannot be checked with a 0.05mm feeler gauge. The perpendicularity between the gear reference end face and the axis shall be ensured.
3. The joint surface of gearbox and cover shall be in good contact.
1. The casting tolerance zone is symmetrical to the basic dimensional configuration of the blank casting.
2. Cold lap, crack, shrinkage cavity, penetrating defect and serious incomplete defect (such as under casting, mechanical damage, etc.) are not allowed on the casting surface.
3. The casting shall be cleaned without burrs and flash. The pouring and riser on the non machining indication shall be cleaned and flush with the casting surface.
4. The cast words and marks on the non machined surface of the casting shall be clear and legible, and the position and font shall meet the drawing requirements.
5. The roughness of non machined surface of casting, sand casting R, shall not be greater than 50 m
6. The pouring riser, flying thorn, etc. shall be removed from the casting. The residual amount of pouring and riser on the non machined surface shall be leveled and polished to meet the surface quality requirements.
7. The molding sand, core sand and core bone on the casting shall be removed.
8. The casting has inclined parts, and its dimensional tolerance zone shall be configured symmetrically along the inclined plane.
9. The molding sand, core sand, core bone, fleshy, sticky sand, etc. on the casting shall be shoveled, ground and cleaned.
10. The wrong type and boss casting deviation shall be corrected to achieve a smooth transition and ensure the appearance quality.
11. The wrinkle on the non machined surface of the casting shall be less than 2mm deep and the spacing shall be greater than 100mm.
12. The non machined surfaces of machine product castings shall be shot peened or roller treated to meet the requirements of cleanliness Sa21 / 2.
13. Castings must be water toughened.
14. The casting surface shall be flat, and the gate, burr, sand sticking, etc. shall be removed.
15. Casting defects such as cold shuts, cracks and holes that are detrimental to use are not allowed.
1. The nozzle and riser of each ingot shall have sufficient cutting amount to ensure that the forging has no shrinkage cavity and serious deflection.
2. Forgings shall be forged on a forging press with sufficient capacity to ensure full penetration in the forging.
3. Forgings are not allowed to have visible cracks, folds and other appearance defects affecting use. Local defects can be removed, but the cleaning depth shall not exceed 75% of the machining allowance. The defects on the non machined surface of forgings shall be cleaned and smoothly transition.
4. Forgings shall be free of white spots, internal cracks and residual shrinkage cavities.

The requirements of lightweight, safety and decoration in modern automobile manufacturing industry drive the development of traditional welding technology in the field of automobile plastics. In recent years, with the application of a variety of high-end technologies such as ultrasonic, vibration friction and laser technology in the field of automobile plastic parts manufacturing, the technical level and supporting capacity of domestic automobile parts manufacturing industry have been greatly improved.As for the welding and welding process of automotive interior parts, hot plate welding, laser welding, ultrasonic welding, non-standard ultrasonic welding machine, vibration friction machine, etc. have been developed. In the process, one-time overall or complex structure welding can be realized, and the optimal design requirements can be achieved on the basis of simplifying mold design and reducing molding cost.For typical interior and exterior trim parts, large components with high surface quality and complex structure, such as instrument panel, door panel, column, glove box, engine intake manifold, front and rear bumper, must select corresponding welding technology, and adopt appropriate welding process according to the requirements of interior structure, performance, materials and production cost. All these applications can not only complete the corresponding manufacturing process, but also ensure the excellent quality and perfect shape of products.


Hot plate welding machine: the hot plate welding machine equipment can control the horizontal or vertical movement of the hot plate welding die, and the transmission system is driven by pneumatic, hydraulic drive or servo motor. The advantages of hot plate welding technology are that it can be applied to workpieces of different sizes without area limitation, applicable to any welding surface, allowing plastic allowance compensation, ensuring welding strength, and adjusting welding procedures according to the needs of various materials (such as adjusting welding temperature, welding time, cooling time, input air pressure, welding temperature and switching time, etc.), In the welding process, the equipment can maintain good stability, ensure consistent welding effect and accuracy of workpiece height after machining.
Another feature of the horizontal hot plate welding machine is that it can rotate at 90 for cleaning. The processing period of hot plate welding machine can generally be divided into: original position (the hot plate does not move with the upper and lower molds), heating period (the hot plate moves between the upper and lower molds, and the heat of the hot plate moves down the upper and lower molds to dissolve the welding surfaces of the upper and lower workpieces), transfer period (the upper and lower molds return to the original position, and the hot plate exits), welding and cooling period (the upper and lower dies are joined to make the workpiece welded at the same time and cooled for forming), and return to the original position (the upper and lower dies are separated, and the welded workpiece can be taken out).
In the early automobile industry, these welding equipment were relatively common, but with the continuous improvement of the requirements for the structure, shape and service life of the parts themselves, the requirements for their processing equipment are higher and higher. Moreover, because the size of the equipment is limited to the size of the welded parts, the equipment and equipment driving mode should be selected according to the size of the parts in the design. The most important thing is the parts The heating area is large and there is large deformation. In addition, the welding process distinguishes the polarity and non polarity of welding plastics, resulting in the gradual replacement of hot plate welding by ultrasonic welding and laser welding. The main parts used for welding in China include automotive plastic fuel tank, battery, tail lamp, glove box, etc.
Laser welding: laser welding technology is widely used in today's medical device manufacturing industry. Only a few manufacturers in the automotive industry use laser welding air inlet pipe, etc. because it is a new welding technology, it is not very mature to a certain extent, but it is believed that it will be widely used in the near future because of its remarkable welding characteristics. Its advantage is that it can weld TPE / TP Or TPE products; under the condition of no vibration, nylon, workpiece with sensitive electronic parts and three-dimensional welding surface can be welded, which can save cost and reduce waste products.
In the welding process, the resin melts less, the surface can be welded tightly, and there is no flash or glue overflow. It is allowed that rigid plastic parts can be welded without glue overflow and vibration. Generally, workpieces with soft or irregular welding surfaces can be welded evenly regardless of the size of workpieces, especially for large-scale production of high-tech micro parts. However, laser conduction is limited. "Quasi synchronous" laser welding technology uses a scanning mirror to transmit the laser beam to the welding surface at the speed of 10m / s according to the welding shape. It can walk on the welding surface as many as 40 times in 1s. The plastic around the welding surface melts and the two workpieces are welded after pressurization.
Laser welding can be roughly divided into: solid Nd-YAG system (laser beam is generated by crystal) and diodesystem (high power diode laser) , CAD data programming. All materials can be laser welded with body materials, among which acrylonitrile butadiene styrene is most suitable for laser welding with other materials, nylon, polypropylene and polyethylene can only be welded with their own body materials, and other materials have general applicability for laser welding.fqj

Shenzhen, China With an array of advanced machining equipments and a team of qualified and experienced technicians and engineers, Runsom Precision boasts of supplying custom machined parts to their industrial clients in a timely manner. According to the spokesperson of the company, they can ship the custom machining parts within 48 hours of receiving the order from the client.
The spokesperson reveals that they maintain a streamlined machining process that makes them capable of shipping China machining parts that precisely meet the specifications supplied by a client. By supplying precision and custom parts in a timely and regular manner, they allow their industrial clients to keep innovating and producing new goods to gain a competitive advantage in the market. They deliver precision machined components within the scheduled time for industries to carry out their production work continually and without any interruption.
According to the spokesperson, they enjoy an excellent reputation in the industry for their outstanding China machining service . They maintain high precision of all machined components, including the holes, axis and the center distance. Moreover, they employ multiple machines for different types of components to help achieve the highest possible degree of precision. The multiple-machining technique proves very important to reduce the production cost and also shortens the project duration. This also gives them the ability to process complex components that need to pass through different machining processes.
Not only cost and customization, but Runsom Precision also focuses on the quality when it comes to supplying CNC Machining parts . The spokesperson maintains that their machining process is strictly according to the ISO 9001:200 standards and the machining of each component is monitored for their quality. According to him, with a stringent quality control measure, they take extra care to make sure that defect free machined parts are delivered to the clients. Their custom machining ensures that clients get the product that exactly meets their specification.
To know more about their machining process, one can visit their website
About Runsom Precision
Runsom Precision Co. Ltd, established since 2005, is a professional, customized, high precision machined components manufacturer based in Shenzhen, China. With years of experience in the manufacturing and services of CNC machined parts, precision engineering components, custom machined parts, Precision CNC machining service, injection molding parts and die casting parts, the company has established a high reputation for their high quality and nice service. They are able to provide one-stop services from initial concept to finished products.
Contact:
Lucy Zhang (sales)
Company: Runsom precision co.,ltd
Phone no: 86-755-3309675

Plastic parts are produced through a process known as custom plastic extraction. This is a manufacturing process where raw plastic materials are melted down and formed into the desired plastic parts. Before you choose a manufacturer for your custom parts, you must consider things like capabilities and production capacitates because they can vary greatly from one manufacturer to the other. Here are some of the factors you should consider.
Strategic Plan You should consider whether or not you are looking for a long term relationship. You need to locate a good cultural and strategic fit. Do your due diligence and take your time in uncovering a manufacturers professional reputation in that industry. During your research, don't just look at the positive reviews to determine how good they are, look for the red flags and see how bad things can get.

The Process Type Different manufacturers use different manufacturing processes that include extrusion, co-extrusion, tri-extrusion as well as crosshead extrusion coatings.

The Plastic Materials The plastic extrusion materials are used in different applications and each of them has their unique properties. One of the most important aspects of hiring a manufacturer is considering the extrusion materials they use for the custom parts. You have to be sure that the parts will be manufactured successfully and will perform as properly as is expected. In case you are not sure about the kind of plastic extrusion materials that would be best for your parts, an engineer can assist you in that area. There are also numerous grade types for the extrudable materials so you should choose a company that can produce the grade you need.

Capabilities If you have a significant production volume requirement, it is essential to know the production capabilities of the manufacturer. The manufacturer should also be able to provide you with extensive capabilities in terms of the design, tooling and fabrication. With these plastic extrusion capabilities, a manufacturer is able to produce high quality custom parts that meet the requirements of their customers. The finishes should be considered as well as they could be matt, glossy or textured. That means your custom plastic parts manufacturer should know about the latest finishes in the market.

Tooling Custom plastic extrusion needs tooling, which is a lot cheaper compared to injection molding. A quality extrusion manufactures ought to offer you state of the art tooling capabilities. They should have an experienced team that designs, engineers and tests all tooling. This will improve productivity, efficiency, safety and reduce costs.

Customer Service When working with any manufacturer, the process will become easier if they have working customer services that communicate effectively. A great manufacturing company is determined by the quality of customer services they offer. If for instance you have any last minute requests or want to change your order, you need to know that someone will be there to attend to you and support you. This will be more important if you are looking for a long term relationship. For it to be successful custom plastic parts manufacturer there needs to be helpful and pleasant customer service.

Conclusion You must consider these things when you are looking for the right manufacturer. As long as you evaluate their previous work and ensure they can provide you with all your requirements at a reasonable price, you will find a good company to work with.