1 bed 2 table; 3; photoelectric sensor; 4 pressing die supporting seat; 5 pressing die; 6 pressure head; 7 pressure sensor; 8 supporting frame; 9 pressure gas-liquid pressurized cylinder; 10 touch screen; 11 cylinder mold

Figure 2 planetary gear deceleration starter pin press assembly diagram of overall structure of equipment

The pin shaft press by the bed, table, photoelectric sensor, pressure die bearing, pressing mold, pressure head, pressure sensor, support frame, pre pressure gas-liquid pressurized cylinder, touch screen, and the mold cylinder, pneumatic parts, electrical control components. The pressing die supporting seat for supporting pressing die, clamping the output shaft. The output shaft is installed, through the photoelectric sensor output shaft is installed in place of [3].3 planetary gear and the pin clamping positioning is ensured by pressing mold. The head part to the pin is pressed into the output shaft of the pin hole, equipped with 3 pressure sensors in the head the security device, through the PLC pin pressing force axle Feedback to open the touch screen, the pin is pressed into the force of real-time monitoring, if the display data beyond the touch pressure into the screen through the prior input value of the specified range, the touch screen alarm button lights are lit, the unqualified products.

1.2 The working principle of the planetary gear deceleration starter pin shaft press

Artificial loading work piece, photoelectric sensor to detect the work piece installation in place, send a signal, press the start button double acting cylinder, die by their own gravity drop to mold cylinder drop in place, the planet wheel and the pin shaft through the pressing die is put to the designated location, press the start button again double action booster cylinder pressure cylinder, fast forward, fast forward in place after the delay of 1 s, boosting cylinder to the pressure relay contact, 3 pressure sensors monitoring pressing force, this may occur in 2 situations: (1) monitoring the pressing force in the preset range, boosting cylinder in place, the pressure cylinder return cylinder mold returned to booster Cylinder and cylinder mold are back in place, the artificial will work out, then start the next cycle. (2) in the process of boosting cylinder or boosting cylinder in place, to monitor the pressing force of 3 pins in the preset value range, indicating that the unqualified products, and immediately alarm equipment stop pressurization, stay put, you must manually according to the double action button to return the pressurized cylinder and cylinder mold, to return to the position after artificial will work out.

1.3 The main characteristics of the planetary gear reduction starter pin shaft press

(1) the working buttons are double action buttons to achieve the safety protection of the operator; the use of photoelectric sensor device to detect whether the work piece is installed in place, to avoid the work piece does not put a good head on the pressure caused by damage to the equipment

(2) the electrical part uses the PLC and the man-machine interface to carry on the monitoring to the pin shaft press loading process, thus realizes the pin in the press in the process maximum pressure force monitoring [4].

(3) the mechanical part of the pressure unit is controlled by all gas and liquid, and the energy consumption is only about 20% of the hydraulic system, and it also reduces the pollution to the environment and reduces the noise of the equipment [5].

(4) through the positioning of the mold to achieve the same time into the pressure of the pin of the three different positions; the pressure sensor unit used in the country is the first to replace the imported pressure sensor unit, reducing the cost

2 Development of clamping parts

Planetary gear pin shaft press clamping positioning device is composed of a round pin guide plate, a movable positioning pin, a positioning plate, a supporting seat, floating lever and spring which is mainly on the work piece clamping and positioning, its structure is shown in Figure 3. The positioning plate is mounted on the supporting seat, because of the output the lower end of the shaft length, in order to facilitate the handling of the output shaft, in bearing seat and the positioning plate each have a fan-shaped structure coincides with the position. The installation location of the output shaft is axially located by one end of it, combined with the pin hole with 5+0.05+0.04mm Journal 18-0.05-0.03mm, using a movable positioning pin in Acts to the location. The concrete structure is the end is a movable positioning pin floating lever support, the lower end of the push rod set floating in the spring, usually a movable positioning pin positioning plate end beyond about 3.5 mm, when the output shaft loading, the excess part of the output shaft is inserted into the pin hole in the work piece radial location, when the planet wheel pin axial pressure pin hole, the lower end of the push rod of the floating spring is compressed, and returned to the movable pin positioning plate. Floating lever positioning the end activities at the lower end of the pin diameter greater than the diameter, and the two different installation axis, this range in size allowed only by replacing the positioning plate and round pin guide plate can be realized For a variety of products. The round pin guide plate is fixed on the floating plate supporting frame, there are 3 holes on the 20.9H6, for the planetary gear and the pin shaft press positioning and guiding role. When the output shaft is installed, press the double action button mold cylinder by their own gravity fall through the guide column drives the floating plate down, so that the wheel pin guide plate down to the output shaft end, artificial 3 planetary gear and pin onto the 20.9H6 hole, then head of the pin is pressed into the output shaft of the pin hole, pin pressing end, press the double action button again, die cylinder wheel pin guide plate rise, return to in suit .