Guide housing

Introduction

This course work is devoted to the development of the manufacturing process of the part "Guide housing" and the design of technological equipment.

The purpose of the course work is to gain practical skills in solving problems arising in connection with the development of technological processes for the manufacture of parts and the design of technological equipment.

In the course of the work, the following tasks are solved: development of the manufacturing process of the part "Guide Housing," which includes selection of the method of obtaining the workpiece, selection of equipment and tools for each TC operation, calculation of elements of cutting modes, cutting forces, allowances and time standards; Design a machine tool for some operation.

The RPZ describes the procedure and all stages of the development of the TP for the manufacture of the product "Guide Housing."

Selection of process equipment and equipment

Selection of equipment models, determination of speed and supply is performed according to [1]. For large-scale production, we select high-performance universal and specialized, focusing on the compliance of the main dimensions of the machine tools with the overall dimensions of the workpiece being processed and achieving the required accuracy, as well as on the use of a minimum number of different machine models.

To achieve high quality and productivity in the manufacture of the housing in all operations according to the recommendations given in [1] for mass production, special devices with a fast-acting clamp of blanks are used.

We perform the processing using a standard tool. Material of cutting part of end cutters - BK6, drills, countersinks, forks, throwers, end cutters and countersinks of quick-cutting part P6M5.

Operation 005 and 010 Vertical Milling

Equipment: Vertical-milling cantilever machine 6P13FZ01.

Table working surface dimensions, mm: 400x1600

Most table movement; mm:

longitudinal 1000

cross 400

vertical 380

Movement of sleeve with spindle, mm 150

Spindle inner cone (7:24) 50

Number of spindle speeds 18

Spindle speed, rpm 402 000

The number of table feeds is stepless

Table feed mm/min:

longitudinal and transverse 101 200

vertical 101 200

Speed of quick movement of table, mm/min:

longitudinal and transverse 2,400

vertical 2,400

Main drive motor power, kW 7.5

Overall dimensions 2,300 x 1,950 x 2,020

Weight, kg 5 650

Operation 015 Multipurpose

Equipment: Multioperative machine IR320 PMF4 with horizontal axis of rotation.

1 Table working surface size, mm 320x320

2 Maximum weight of workpiece to be treated, kg 150

3 Largest table movements, mm:

longitudinal 500

cross 400

4 Spindle head (heads)

vertical 360

5 Distance from spindle end to table center 0 - 400

6 Spindle hole cone (as per GOST 1594582) 40

7 Tool magazine capacity, pcs 40

8 Largest diameter of tool loaded into magazine

-from skipping slots 125

-with passing of slots 200

9 Number of spindle rotation stages is stepless

10 Spindle speed, rpm 135000

11 The number of working feeds is stepless

12. Working feeds, mm/min 13200

13. Highest table feed force, MN 4

14 Speed of rapid movement, mm/min 10000

15 Power of electric motor of main motion drive, kW 7.5

16 Overall dimensions, mm: 3999х2300х2507

17 Weight, kg 8000

Operation 020 Horizontal Bore.

Equipment: Horizontal boring 2M615

1. Table working surface size, mm 900x1000

2. Highest weight of workpiece, kg 1500

3. Largest table tablet moves, mm:

longitudinal 1000

cross 1000

4. Spindle head (s) vertical 800

longitudinal 500

5. Spindle hole cone (as per GOST 1594582) 80

6. Number of spindle rotation stages 20

7. Spindle speed, rpm 20-1600

8. Number of working feeds 15

9. Working feeds, mm/min 2.5-2,000

10. Dimensioning discreteness, mm 0.01

11 Power of motor of main motion drive, kW 6.7

12 Overall dimensions, mm: 4,300 x 2590 x 2585

13 Weight, kg 8 50

Design Section

5.1. Describes the selected fixture design.

We design the workpiece processing fixture in step 005.

We install the blank with an untreated surface on 3 corrugated supports 1,2 and 3, press it into an untreated plane (points 4,5) and rest against an end perpendicular to the above.

Blank is clamped by means of overlay jaws installed on movable and adjustable slides. The adjustable slider is dimensioned using a screw with multidirectional threads. The movable slider moves towards the blank by means of a lever system driven in turn by poppet springs. To expand the blank at the loading position, a pneumatic chamber is fixed in the lower part of the accessory, which, when compressed air is supplied to the lower cavity, moves the rod upwards, thereby releasing the blank.