MODERNIZATION OF THE SWINGING ROCKER SLOTTING MACHINE

In this course work, a slotting machine with a swinging backstage was modernized.  

Introduction 5

1. Feasibility study for the selection of a swing rocker slotting machine scheme.6

1.1 Prototype description6

1.2 Explanation of the choice of the structure  of the slotting machine7

1.3 Estimation of the energy consumption of the designed slotting machine8

2. Determination of the parameters of the scheme of the slotting machine9

2.1Calculation of the drive9

2.1.1Selection of the electric motor and the type of reduction gear 10

2.1.2. Synthesis of gear mechanisms. 11

2.2. Selection and synthesis of the bearing mechanism.    13

2.3 Synthesis of the transverse feeding mechanism of the table. 15

2.3.1. Synthesis of the cam mechanism. 16

2.3.2. Design of screw  and  ratchet mechanism. 19

2.4. Dynamic synthesis of the machine.      19

2.4.1. Calculation of masses and moments of inertia of links.      21

2.4.2. Calculation of the given moments of inertia.    23

2.4.3.   Determination of material and energy consumption at start-up 31

3. Study of the scheme of the  slotting machine.  32

3.1. Investigation of the steady motion  of the  slotting machine32

3.2. Determination of reactions in the kinematic pairs of the machine.    33

3.2.1. Determination of accelerations.      34

3.2.2.     Calculation of inertial forces 36

3.2.3.     Determination of reactions in kinematic pairs37

3.2.3.     Determination of reactions in kinematic pairs38

3.3      Determination of instantaneous efficiency, assessment of wear intensity38

4. Summary findings and results41

5. Conclusion42

6. References43