What are the key points of operation of horizontal machining centers?

The product structure of East China CNC is more complete, the types are more complete, the reliability and stability are higher, and an industrial pattern with CNC machine tools as the main body and economic and popular machine tools as the supplement. The leading products are CNC gantry guide rail grinding machine series products, CNC gantry milling and boring machine series products (including fixed beam and fixed column, fixed beam moving column), CNC vertical and horizontal machining center, cylindrical grinder, universal radial milling machine, vertical grinder, surface grinder and other products.

Key points of operation of horizontal machining center:

1. Ensure that the processing content of the workpiece is completed within the travel range of the spindle.

2. Try to complete all the processing content in one clamping. When the clamping point has to be replaced, special attention should be paid not to destroy the positioning accuracy due to the replacement of the clamping point, and it should be explained in the process document if necessary. The contact between the bottom surface of the fixture and the workbench, the flatness of the bottom surface of the fixture must be ensured, and the surface roughness is not greater than.

3. The fixture should have as few elements as possible and high stiffness.

4. In order to simplify positioning and safety, each positioning surface of the fixture should have an accurate coordinate size relative to the processing origin.

5. For machining centers with interactive worktables, due to the movement, up, down and rotation of the worktable, the fixture design must prevent the spatial interference of the fixture and the machine tool.

6. The fixture should be open as much as possible, the spatial position of the clamping element can be low or low, and the installation fixture can not interfere with the tool trajectory of the working step.

7. It can be disassembled in a short time and changed to a fixture suitable for new workpieces. Since the auxiliary time of the machining center has been compressed very short, the loading and unloading of the supporting fixtures cannot take up too much time.

8. In order to ensure that the installation orientation of the parts is consistent with the direction of the workpiece coordinate system and the machine tool coordinate system selected in the programming, and the directional installation.

The working principle of the horizontal machining center:

After the workpiece is clamped on the machining center once, the digital control system can control the machine tool to automatically select and replace the tool according to different processing processes, automatically change the spindle speed of the machine tool, the feed rate and the movement trajectory of the tool relative to the workpiece and other auxiliary functions, and complete the processing of multiple surfaces and multiple processes of the workpiece in turn. And there are a variety of tool change or tool selection functions, so that the production efficiency is greatly improved.

Due to the concentration of the process and the automatic tool change, the machining center reduces the time of clamping, measuring and machine tool adjustment of the workpiece, so that the cutting time of the machine tool reaches about 80 of the machine tool starting time (the ordinary machine tool is only 15 20); At the same time, it also reduces the workpiece turnover, handling and storage time between processes, shortens the production cycle, and has obvious economic effects. The machining center is suitable for small and medium-sized batch production with complex parts shape, high precision requirements and frequent product changes.

Compared with the vertical machining center, the horizontal machining center has a complex structure, covers a large area, and is also higher, and the horizontal machining center is inconvenient to observe during processing, and it is inconvenient to clamp and measure parts, but the chip removal is easy during processing, which is beneficial to processing.

The main thing is the coordinate transformation after the angle, you can go to Tao, Bao Sofa Nake Wojia angle is.

The machining center is a highly automated, multi-functional CNC machine with a tool magazine and an automatic tool changer. In Hong Kong, Taiwan and Guangdong, many people also call it a computer gong. Machining centers can be divided into vertical machining centers and horizontal machining centers.

Vertical machining center: vertical machining center refers to the machining center with the spindle in a vertical state, its structural form is mostly a fixed column, the worktable is rectangular, and there is no indexing rotation function, which is suitable for processing discs, sleeves, and plate parts, it generally has three linear motion coordinate axes, and a rotary table rotating along the horizontal axis can be installed on the workbench to process spiral parts.

The vertical machining center is easy to install, easy to operate, easy to observe the processing situation, easy to debug the program, and widely used. However, limited by the height of the column and the tool change device, the parts that are too high can not be processed, and the chips are not easy to be discharged when processing the cavity or the concave profile, and the tool will be damaged in serious cases, and the machined surface will be damaged, and the smooth progress of processing will be affected.

Horizontal machining center: horizontal machining center refers to the machining center where the spindle is in a horizontal state, usually with an automatic indexing rotary table, it generally has 3 5 motion coordinates, the common is three linear motion coordinates plus one rotary motion coordinates, the workpiece is completed after a card installation, in addition to the mounting surface and the top surface of the remaining four surface processing, it is most suitable for adding box parts. Compared with the vertical machining center, the horizontal machining center is easy to remove chips during processing, which is beneficial to processing, but the structure is complex and high.

Horizontal machining center is a kind of CNC machine tool with more functions, which integrates milling, drilling, grinding, boring, rose thread and thread milling, with a variety of technological means and strong comprehensive processing capacity. Compared with ordinary machine tool machining, machining centers have many significant process characteristics. The machining center can reduce the number of clamping of the workpiece, eliminate the positioning error caused by multiple clamping, and improve the machining accuracy.

When the position accuracy of each processing part of the part is required to be high, the machining center processing can process each part in a clamping, which avoids the positioning error caused by the multiple clamping of the Gongzen answer, and is conducive to ensuring the position accuracy requirement of each processing part.

At the same time, the machining center mostly adopts semi-closed-loop, or even full-closed-loop position compensation function, which has higher positioning accuracy and repeatable Dinghe booth position accuracy, and the dimensional error generated in the processing process can be compensated in time, and compared with ordinary machine tools, higher dimensional accuracy can be obtained. In addition, the use of machining center processing can also reduce the auxiliary time of loading and unloading workpieces, save a large number of special and general process equipment, and reduce production costs.

Due to the good rigidity and high power of the machining center, the larger cutting amount should be selected as much as possible in the machining process, which can save processing man-hours. However, the temperature rise generated under such conditions will affect the machining accuracy of the part, so it is necessary to select and excavate the appropriate tools and fixtures, and pay attention to adequate cooling. The processing sequence should be in accordance with the principle of gradual refinement from coarse, that is, heavy cutting, rough machining, but remove most of the machining allowance on the part blank, and then arrange the processing process with low calorific value and low processing requirements, so that the parts have sufficient time to cool before finishing, and then finish.

Each operation should minimize the amount of idle stroke movement and reduce the number of tool exchanges.

Features of horizontal machining center:

With automatic tool change device, it can automatically change the tool, and complete milling, boring, drilling, reaming, hole comparison, tapping and other processing in a clamping, and the process is highly concentrated.

A machining center with an automatic swing angle spindle or rotary table can automatically process multiple faces and angles after a single clamping.

The machining center with an interchangeable table can perform one machining and one clamping workpiece at the same time, and has high processing efficiency.

Yes. The machining center is a high-precision processing equipment integrating automation, intelligence, composite processing and high-speed, among which horizontal and vertical machining centers are the most widely used models. So what are the advantages and disadvantages of the structural characteristics and technical performance of the two?

Let's take a look at it for you in detail.

First, the characteristics of the machine tool in horizontal processing.

The horizontal machining center is relative to the vertical spike modification machining center, its spindle is a horizontal state of the machining center, usually with an automatic indexing rotary table, it generally has 3 5 motion coordinates, the common is three linear motion coordinates plus one rotary motion coordinates, the workpiece can complete the processing of the remaining four surfaces except the mounting surface and the top surface after a card installation, the current horizontal machining center has a five-axis five-linkage model, that is, it can be processed at one time in addition to the bottom surface, That is, the processing of the remaining 5 surfaces except the mounting surface.

Horizontal machining centers are best suited for the addition of box-type parts. Compared with the vertical machining center, the horizontal machining center guesses the chip removal when machining, which is beneficial to the processing, because the structure of the horizontal machining center is good, some large parts and complex parts can be processed, so to speak, the workpiece that the vertical machining center can not process, can be processed on the horizontal machining center. However, there must be advantages and disadvantages, and the horizontal machining center has a complex structure and high disadvantages compared with the vertical machining center.

1.Beijing Yibei Machine Tool Co., Ltd. is a state-owned high-end CNC machine tool intelligent and integrated manufacturing and service provider. The company is headquartered in Shunyi Park, Zhongguancun Science and Technology Park, and has 13 subsidiaries around the world.

Products and services cover the processing and manufacturing of key components such as engine blades and titanium alloy structural parts in the aviation field.

2.Qiqihar Second Machine Tool Group****. Qiqihar Machine Tool Group is a leading enterprise of heavy machine tools in China, providing nearly 60,000 sets of machine tools in 32 provinces, municipalities, autonomous regions and more than 40 countries and regions on five continents.

Its main products include CNC floor milling and boring machines, CNC gantry milling machines, CNC vertical lathes, CNC milling machines and machining centers, mechanical presses and automatic forging equipment.

3.Shenyang Machine Tool Group. Shenyang No.1 Machine Tool Factory was founded in 1935.

Over the past 60 years, after continuous technological transformation and innovation, it has now become China's largest comprehensive machine tool factory and a national CNC machine tool development and manufacturing base. Since it was put into operation, the plant has provided nearly 300,000 sets of metal cutting equipment to domestic and foreign manufacturing industries, and is known for its excellent quality.

Hello dear. The following is the working principle of the horizontal boring and milling machining center that I inquired for you: after the workpiece is clamped on the machining center once, the digital control system can control the machine tool according to different processing processes, actively select and replace the tool, actively change the spindle speed of the machine tool, the feed speed and the motion track of the tool relative to the workpiece and other auxiliary functions, and complete the processing of multiple operations on multiple sides of the workpiece in turn.

And there are a variety of tool change or tool selection functions, so that the production power is greatly improved. Because of the concentration of the process and the active tool change, the horizontal machining center reduces the time of clamping, measuring and machine tool adjustment of the workpiece, so that the cutting time of the machine tool reaches about 80% of the imitation rock carving when the machine tool is started (the general machine tool is only 15 20%); Together, it also reduces the turnover, handling and storage time of workpieces between processes, shortens the production cycle, and has obvious economic effects. The machining center is suitable for small and medium-sized batch production with complex parts shape, high precision requirements and frequent product replacement.

Compared with the vertical machining center, the horizontal machining center has a complex structure, covers a large area, and is also higher, and the horizontal machining center is inconvenient to investigate during processing, and it is inconvenient to clamp and measure parts, but the chip removal is easy during processing, which is beneficial to processing. 1. Ensure that the processing content of the workpiece is completed within the travel range of the spindle. 2. Try to complete all the rental processing content in a clamping.

When it is necessary to replace the clamping point, special attention should be paid not to destroy the positioning accuracy due to the replacement of the clamping point, and if necessary, it should be stated in the process documentThe touch between the bottom surface of the fixture and the workbench, the flatness of the bottom surface of the fixture must be ensured within, and the surface roughness is not greater than that of the fixture, which should have as few elements as possible and high stiffness. 4. In order to simplify the positioning and installation of the fixture, each positioning surface should have the coordinate size relative to the processing origin.

5. Regarding the machining center with an interactive worktable, because of the movement, up, down and rotation of the worktable, it is necessary to prevent the spatial intervention of the fixture and the machine tool in the design of the fixture. 6. The fixture should be opened as much as possible, and the spatial position of the clamping element can be low or low, and the device fixture can not interfere with the tool track of the step. 7. It can be disassembled in a short time and changed into a fixture suitable for new workpieces.

Because the auxiliary time of the machining center has been tightened very short, the loading and unloading of the supporting fixtures cannot take up too many moments. Big hole 8, in order to ensure that the orientation of the part device is consistent with the direction of the workpiece coordinate system and the machine tool coordinate system selected in the programming, and the orientation device.

Hello, the working principle of the horizontal boring and milling machining center is as follows, the working principle of the horizontal machining center is that when the workpiece is clamped after a clamping of the machining center, the different processing processes of the machine tool are controlled by the numerical control system, and the tool is automatically selected and replaced, and the spindle speed of the machine tool can be automatically changed, the feed speed and the movement trajectory of the relative workpiece of the tool and some other auxiliary functions, and then the processing of the multi-process open chain of the workpiece is completed in turn. This kind of horizontal machining center not only has a variety of tool change or liquid locust limb is the function of selecting the tool to make the world, but also can greatly improve the production efficiency.