No, Pence can’t overturn the election results
Pence, in his role as president of the Senate, is scheduled to preside over Congress' certification of the results Wednesday, as detailed by the 12th Amendment. But he can't intervene in the process.
The law governing the certification process, the Electoral Count Act of 1887, specifically limits the power of the president of the Senate precisely because a president of the Senate had intervened in the count previously. In 1857, after James Buchanan's win, the Senate president overruled an objection against Wisconsin electors who had been delayed in their certification process by a snowstorm in 1856.