1st ICAI 2020

International Conference on Automotive Industry 2020

Mladá Boleslav, Czech Republic

Table 1: Operation times

Operation

Time in seconds

Material inserting

30 36 52 40 25

Gluing of side 1 (16 pcs per batch) Gluing of side 2 (16 pcs per batch)

UV lamp

Removal from the UV furnace (16 pcs per batch)

A coil riveting + measuring

9 5

A coil assembly

An Anchor measuring

12

Relay assembly + consigning for tuning

5

Alignment (tuning)

83 10

Cutting of outlets + relay blowing + covering

Checking (control) under a camera Moving to the tinning workplace Tinning + inserting to a RTG tester

5 2 6 2

Removing from a RTG test + putting into the packing box

Source: Hozzová, 2017 The bottleneck of the process is the alignment of the relay. The purpose of the paper is to suggest possible variants that will streamline the manufacturing process in order to improve performance. The final solution is to choose the most suitable variant, which will reduce the manufacturing time of the relay and thus meet the desired work goal. 2.2 Variants of manufacturing process solution The following chapter describes the calculation of suggested variants of the manufacturing process and their combinations for the purpose to find the efficient production. 2.2.1 Solution proposal A The proposal A involves sorting of contacts at the beginning of the process and subsequent removal of the alignment, in case of failure, return to additional adjustment. The TT of the “220” type of relays is shown in Table 2.

Table 2: Tact Time (TT) for the “220” type relay Number of pieces Minutes

Seconds

1 pc

5.15

309

105 pcs

540.75

32,445

Source: Hozzová, 2017

143