The mechanism such as the tailstock seat describes the structural characteristics of the machine tool and the information channel of the control system. The machine tool has been used in the production lines of some piston and engine manufacturers. The processing efficiency and precision have reached the level of similar foreign products. Q: Piston shaped pin hole boring machine CNC piston shaped pin hole boring machine is the key to the convex arc of the modern internal combustion engine piston processing. It is also imperative to use a special hole in the pin hole. This article introduces the device. With the improvement of environmental awareness, the internal combustion engine emission has higher requirements for the development of the special-shaped pin-hole boring machine and the piston-shaped pin hole. The piston is a key component of the internal combustion engine, except for the outer circle.

The Fourier transform obtains the response spectrum of the model in response to the frequency corresponding to the peak point of the spectrum as the resonant frequency of the model. Table 1 shows the resonance frequency obtained from the impact response spectrum of the lower end of the spindle in the vertical direction of the whole machine. The AC servo motor at the tail of the spindle drives the ball screw through the coupling. The screw nut moves the push rod axially and drives the servo. The rod is radially translated (resolution 0.0001mm), and the displacement is controlled by the system to complete the processing of the shaped pin hole.

This device is essentially a deformation device with extremely high transmission accuracy and rigidity. It converts the axial displacement into a radial displacement accurately, and at the same time as the radial displacement of the mast, a configuration block is displaced in the opposite direction, which acts as a dynamic balance.

Piston positioning and pressing mechanism The piston positioning and pressing mechanism of this machine is also unique. As shown, the outer circumference and the top surface of the piston skirt serve as the positioning base surface, and the edge-cutting pin defines the axis of the piston pin hole. The pressing mechanism adopts the hollow piston rod cylinder 1 and the piston coaxially mounted, and the pressing is reliable. A spherical bearing 2 is mounted inside the indenter to make it float. The ram is pressed against the end face of the piston or on the inner block of the piston. The top of the hollow piston rod cylinder can be connected to the cutting fluid to cool the machining zone, or it can be connected to the industrial vacuum cleaner to remove the chips.

The entire pressing mechanism can adjust the eccentric amount of the piston pin hole axis and the spindle axis by the pin hole eccentric adjusting screw 5... 53. Displace the radial displacement of the servo mast (see) to realize the processing of the special pin hole; the operation of the main shaft is AC servo drive A channel output ±10V analog quantity to the inverter, inverter drive spindle can realize 50 PCU through the PROFIBUS bus, input/output interface board to complete some auxiliary work required for processing and operation of the whole machine. All signal input and output of the machine tool are input to the 802D PCU via the input/output interface board. The logic sequence control is completed by the PLC program: the input terminal receives the control signal from the operation panel and the zero limit and clamps in place. The protection detection signal is output; the output terminal controls the clamping release of the clamping cylinder through the relay and the contactor, and the advance and retreat of the tailstock cylinder (the aforementioned edge-cutting pin is retracted and retracted), the cutter head cooling switch, and the automatic door Switch and other actions.

The machine tool control system bookmark5 This machine tool control system selects the SINUMERIK802D all-digital numerical control system produced by SIEMENS of Germany. The user of the system is easy to program, friendly interface, flexible interface, simple operation, high system reliability, good stability and convenient maintenance. Its control system structure is as follows.

Siemens 802D CNC system PCU AC servo drive z, z two-way AC servo motor variable frequency spindle input / output interface board signal into operation W detection and protection signal signal out relay output This innovative design of the shaped pin hole boring machine mechanism is cleverly designed, the actual use of processing Good quality and excellent performance. This series of machine tools has been used normally in the production lines of major piston and engine manufacturers. It is easy to operate, high in reliability, processing efficiency and precision have reached or exceeded the similar equipment imported from abroad, and is well received by users.

(Finish)

Mold is a kind of industrial product that can make the material take shape in a certain way in a specific structure form.
Almost all industrial products, from airplanes and automobiles to tea cups and nails, must be moulded.
The high precision, high consistency and high productivity of moulds are incomparable to any other machining methods.
Mould determines the product quality, benefit and new product development ability to a great extent.
So the mold has the "mother of industry" honorary title.

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