Numerical control transformation of X6132 milling machine

Equipment and transformation Jinan Mechanical Workers University Xu Jiqing Jinan First Machine Tool Plant Tanhao X6132 milling machine CNC transformation transformation X6132 milling machine into CNC milling machine, the main transformation is: the main motor end face installed electromagnetic clutch, in order to control the spindle Stop; the vertical and horizontal feed motion of the workbench is changed to a stepper motor to control the vertical feed motion, still using maneuver and manual mode.

The CNC system used in the transformation and development is the most recent IKBC2-VI CNC system. It is mainly composed of the main control system and the display system. In these two parts, a new type of single-chip CMS90G2 is used as the central processing unit. It can be compatible with the MCS-51 system MCU with fast pulse programming algorithm. It adopts CMCB technology and the maximum working frequency can reach 40MHz (this design uses 18MHz).

The main control system is used to control: the input and output of the keyboard; the overtravel side door of the workbench in the XY direction is closed; the query; the phase spindle of the stepping motor is reversed and forwarded by XfflY. It is mainly composed of a central processing unit CMS90C32 program memory 27256, a data storage device 6264, two programmable interface chips 8255, two pieces of 74LS273 and the like. (As shown in the attached file) There is no program memory in the CPU of this system, only 256 bytes of RAM, so it needs to be extended. 27256 is used as program memory (capacity is 32KB) and 6264 is used as data memory. The P0 and P2 ports of the CMK90G2 are used to transfer the address and data to the external memory.

The port transfers low 8 memory addresses and data. The transfer of the lower 8-bit address and data is done by the latch 74LS373. When ALE is high, the input and output of the latch are transparent, that is, the input low 8-bit memory address appears at the output to be sent to the bank as early as possible. When the ALE terminal of the CPU goes from high to low, the lower 8 bits. The address is latched in the 74LS373, and the output of the 74LS373 is no longer interrupted and externally componentized with the input variable clock circuit, so that the P. port can be used as a data port to transfer read and write data.

The port of 0\902 keeps sending the upper 8 bits of memory address throughout the fetch cycle. The P2 port of the 4LS373 and GVS90G2 sends out a 16-bit address (ie, the system's address bus). Since the memory space of the program memory is the address pin of the 32KB address range, the chip select terminal of 27256 is directly connected to the 15th bit address. This is because in the effective address space, 'always low, the memory chip can be selected.

The PSEN of the GVS90G2 is connected to the CE end of the 27256, so that the contents of the program are stored. The WR pin is connected to the WE6 of the 6264, and the RD pin is connected to the CE of the 6264 to implement reading and writing of the external data memory.

The P. port and P2 port of GVS90G2 have been used to transfer the address and data of the external memory, while the P3 port is used to generate the read/write control line of the external memory, and the other bits are used to implement serial communication, interrupt, etc. The input and output ports must be extended. The 8255 chip is a general-purpose parallel interface circuit that can be programmed to select its logic functions. It contains three 8-bit parallel ports: PA, PB, and Pc. The first 8255WPA port is used as an output port, and the keyboard column line is controlled as a key scan port, and the PBa line is used as a key input port. The second piece 8255 is used to control the overtravel of the table in the XY direction, side door closing, query, page turning, insertion, pause, and the like.

The 74LS273 is an 8D flip-flop with a clear terminal. The latch function is only available when the clear terminal is high. The latch control terminal is CLK and the rising edge is latched. The first piece 74LS273 controls the spindle forward and reverse and emergency stop, the cooling pump starts and stops the second piece 74LS273 to control the X and Y direction step motors.

The display system is used to control the H716501 liquid crystal display. It is mainly connected to the main control system by the central processing unit GVS90G3 (the second chip), the program memory 27256 data memory 6264, and the liquid crystal display H716501CM90G2 and 27256, 6264. The data line of the system is connected to the display H716501. H716501 Donghuahai Electric Appliance Co., Ltd. (original mountain Zhu Yachuan vacuum switch factory).

It is a member of the National Standardization Technology High-voltage Switchgear Standardization Technical Committee.

Shandong high-tech gold industry, the company has advanced CNC cutting. Rush. Modern production technology equipment such as folding gold processing equipment and electroplating coating. High standard test methods. Strong scientific and technological development strength, Shanshan's ISOSXKE quality assurance system has been established since 19M with S. and universities. Hey, cooperate. Continuously increase the development of æ–© products.

The main products are indoor and outdoor SS vacuum cut low S switchgear. Double laminated vacuum handcart refused. Transformer. Grounding switch. AC frequency conversion speed control complete set of closed armor B and other six series, more than 20 varieties of more than 100 specifications. People are the foundation. Quality M is the subject. S guest is God. The letter* is life" for Zong S, providing quality and superior quality to the monthly household. The technology-leading products and thoughtful service are widely used in electric power, metallurgy, petrochemical, coal, transportation, etc. and exported to Pakistan. Malaya, etc. 1. It is a Sinopec Oil and Gas Group Company and a Sinopec Group Company's electrical equipment and a plant. It has been established by the Guomao G Trade Committee, the M National Urban and Rural Network, and the Cleaner-Study Equipment Products and Manufacturers List Shandong Huahai Electric Appliance Co., Ltd. (formerly Shandong Luanchuan Vacuum Switch Factory) is a dot matrix liquid crystal display with low power consumption and small display information. ET address: Luzhong Driving Training Center, Zichuan District, Zibo City, Shandong Province (255188 ) Tel: Sales Office (0533) 5430178

(Finish)

Cementing Tools

Bow spring casing centralizers