Engine valve lock pinch head assembly

Abstract

The invention discloses an engine valve lock clamp pressure head assembly which is characterized in that material ways are arranged on two sides of a V-shaped structural member in a V-shaped distribution manner; lock clamps are loaded in the material ways in a single column in a manner that convex rings at the upper parts face to the same direction; a pressure head is provided; the lock clamps fall into a vertical material way of the pressure head; an adjustment rod is arranged in a central through hole of the pressure head; the bottom end of the adjustment rod can press against the top end of a valve rod; a clamping claw is arranged on the outer side of the pressure head; a horizontal hook head is arranged at the bottom of the clamping claw; by the use of the swinging of the clamping claw, the horizontal hook head blocks the outlet of the vertical material way of the pressure head or releases the blockage; the lock clamps are gradually discharged from the vertical material way of the pressure head and caught by a valve seat ring; and the valve seat ring supports the lock clamps encircled on the valve rod in a paired manner. The engine valve lock clamp pressure head assembly is applied to an engine assembling line, so that automatic pressure assembling of the valve lock clamps is realized, and the pressure assembling success rate is increased.

Description

technical field [0001] The invention relates to an engine valve lock clamping head assembly on an engine assembly line, and is especially suitable for being applied in single-slot or three-slot valve lock clamp automatic assembly equipment of gasoline engines and diesel engines. Background technique [0002] On the existing engine assembly line, the press-fitting of the valve lock clip on the cylinder head has always been a difficult point. Figure 5 , Figure 5a and Figure 5b Shown is a typical passenger car engine gas distribution mechanism, lock clips 31, as the key components of the engine gas distribution mechanism, are embraced in pairs on the valve stem 32, and the convex ring 31a is formed to cooperate with the annular groove on the valve stem, relying on the valve The tapered hole of the seat ring 33 and the elastic force of the valve spring 34 are tightly fixed on the valve stem 32, and the cam mechanism 35 acts on the valve stem 32 through the valve tappet 36, s...

AI Technical Summary

Problems solved by technology

[0003] At present, manufacturers mainly use manual press-fitting and semi-automatic press-fitting methods. In the process of manual press-fitting and semi-automatic press-fitting, manual loading and distribution are required. Due to the small size of the valve lock clip, manual loading and distribution are extremely easy. Cause leakage or wrong material, resulting in unqualified press-packed products

And the press-fitting method is the direct pressure type, that is, the lock piece is directly pushed out vertically from the material channel, so that the lock piece slides axially along the valve stem until the protrusion of the lock clip slides into the ring groove of the valve stem. Press-fitting will cause certain damage to the lock clip and valve stem. The workpiece is subject to a large additional load during the entire press-fitting process, and the axial direct pressure type press-fitting parts wear out quickly, and its success rate will gradually decrease with time.

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