1 wheel pin guide plate; 2 movable positioning pin; the 3 positioning plate; the 4 supporting seat;5 floating lever; 6 spring

Fig. 3 Schematic structure of clamping part

3 The development of head part

The pressure head device is a key component of the planetary gear pin shaft mounting device, and the pin of the planet wheel is pressed into the pin hole of the output shaft through the device. The structure is shown in Figure 4

1seat plate; 2 pressure head; 3 sealing rings; 4 discharging rod; 5 pressure sensor; 6 pressure head; 7 spring; 8 dead baffle

Fig. 4 Schematic diagram of the head device

In Figure 4, the pressure in the head seat is equipped with 3 pressure head to top pressure planetary gear pin. The pressure head at the lower end of a diameter of 14 planetary gear pin head diameter is 9.5 mm, so that the pressure head pressure pin hole diameter positioning products cover all products from the 27 ~ 37 mm. Each close to the pressure the upper end of the installation of 1 pressure sensors, used to monitor the size of the pressure head pressure pressure head pressure pin. When the pressure head device has 3 ejector cylinder, each ejector cylinder is equipped with 1 discharging rod, when the pressure head device back moment, discharging rod to prevent the work piece, work piece with pressure head device together The assembly will retreat. The end head of the mill, to ensure that the pressure head between the end face and a dead baffle (1 + 0.02) mm distance, in order to ensure the consistency of product size and avoid pressing, pressing head face and the face of death under the baffle interference. Pressure head seat two dimensions for positioning pin hole 8H7 you 1.5 mm wide slot, the structure design is mainly from the process perspective, the use of wire cutting 2 positioning holes and 3 head hole in one clamping processing. The head plate is fixed on the movable plate device stand by, And then is connected with the piston rod on the support plate and the activities of a head and a gas-liquid pressurized cylinder, so that through the booster cylinder piston rod on the linear motion, thus realizing the planetary gear pin pressing.

4 The development of the supporting frame

Part of the frame supporting structure as shown in Figure 5, the main supporting and guiding role. Movement of gas-liquid pressurized cylinder installed on the roof of the support frame, the pressure head device is fixed on a movable plate support frame, wheel pin guide plate and the supporting frame of the floating plate are connected together, die cylinder connected with the supporting plate the bottom of the floating joint. Through every work cycle, activity board pillar under the linear motion of a drive in the pressurized cylinder along the cylinder under the frame in driving small guide pin guide wheel drive plate under linear motion at a time, in order to reduce the movable plate and the guide column, friction between the guide column and the platen shaft hole, and to reduce cost, in the event Plate and plate and pillar with all round with flange straight line bearing [6] shaft hole movement, in order to ensure that the round pin guide plate and a lower mold seat position precision, platen shaft hole is installed lengthened round flange straight line bearing.

1 roof plate; 2 connecting device; the movable plate; the 4 circular flange straight line bearing; the floating plate of the 5; the big guide pillar; the 7 guard plate; the length of the circular shaft of the type of the bearing plate; the length of the 8 extension of the straight line of the bearing; the small guide pillar; the 10 floating joint; the 11 supporting plate; the 9 supporting plate; the 3 supporting plate

Fig. 5 Schematic diagram of the supporting frame

5 pneumatic system development

Considering the influence of the noise and pollution of the environment, the planetary gear deceleration starter pin pressing power equipment using gas control, the system is composed of gas-liquid pressurized cylinder, cylinder mold, ejector cylinder, air filter, solenoid valve and its structure as shown in Figure 6. The selection of pressurized cylinder pressure cylinder to clamp the main consideration the requirements of the travel size and work piece required pressure loading. 4.708 ~ is the pressing force of each pin 8.199 k N, this system provides pressure greater than at least 30 k N, considering the work piece loading and unloading, requirement of pressurized cylinder stroke is greater than 90 mm, and Pressure type gas-liquid pressurized cylinder model is established for UP2 - 10 - 10 - 20 - 08B, the parameters are as follows: the maximum pressure of 100 k N, the maximum stroke of 100 mm, using pressurized partial stroke 20mm. mold cylinder mainly consider the wheel pin on the guide plate under the linear motion of the distance, only need to pressure the wheel pin guide plate lift it, mold is used SC32100SFB cylinder, the parameters are as follows: the diameter 32 mm, the maximum stroke valve 100mm. system used for system pressure To the appropriate range, one-way throttle valve for turbocharger speed control of pressurized cylinder, quick exhaust valve of the pressure cylinder is used to speed up the return speed, reduced equipment cycle time.