I have received my tourist visa with as a fixed date from: 7/6/19 to: 7/12/19 Type: C number of entries: Multiple Duration of stay: 180
Issued in:: UKV102
Since today is the 26th of June, we can conclude without ambiguity that the issue date of your visa, 7/6/19, is in day-month-year order, because you have the visa in your possession, meaning it was issued in the past, yet July 6th is in the future. Your visa was issued on June 7th.
Additional evidence in support of this conclusion is that the day-month-year order is the usual order used in the United Kingdom.
Furthermore, a multiple-entry visa that allows a 180-day stay but has only 7 days' validity would be nonsensical.
My simple question is that I am flying on 7/13 arriving in London 7/14/19 and return flight 8/1/19
Am I going to be ok traveling after the fixed date posted on my visa????
You must travel before the date on your visa. That date is 7 December 2019. You must leave the UK on or before 7 December 2019 unless you obtain a different visa.
The trip you're asking about, however, is therefore fine.