Double-nut automatic tightening head assembly and tightening mechanism
A technology of tightening heads and double nuts, applied in metal processing, metal processing equipment, manufacturing tools, etc., can solve problems such as difficulty in tightening heads, withdrawal, and inability to align the tooth grooves and locking nuts of the tightening head, so as to improve assembly efficiency. Effect
Pending Publication Date: 2019-05-21
龙口市汇金达智能设备有限公司 +1
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Problems solved by technology
[0003] However, this method is still only suitable for single nut tightening, and automatic tightening cannot be realized for double nuts. The so-called double nut means that there is a lock nut between the screw and the workpiece. To tighten the screw, and then tighten the lock nut, After using the existing automatic tightening machine to tighten the screw, the toothed groove on the tightening head and the lock nut cannot be aligned (both the screw head and the lock nut are hexagonal nuts), and the lock nut is difficult to snap into the tightening head. It performs the tightening operation; after tightening the screw, even if the toothed groove on the tightening head can be aligned with the lock nut, after tightening the lock nut, it is difficult to completely align the lock nut and the screw head, which will cause the tightening head It is difficult to withdraw from the screw head, so it is difficult to realize the automatic tightening function of double nuts in the prior art
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[0033] The principles and features of the present invention are described below in conjunction with the accompanying drawings, and the examples given are only used to explain the present invention, and are not intended to limit the scope of the present invention.
[0034] The "longitudinal" mentioned in this application refers to the axial direction of the tightening head, and the "transverse" is perpendicular to the axial direction of the tightening head.
[0035] Such as Figure 1-Figure 4 As shown, a double nut automatic tightening head assembly includes a tightening head 1 and a movable sleeve 2. The tightening head 1 includes a head 1-1 and a rod 1-2 integrally structured with the head 1-1. , the center of the head 1-1 is provided with a central hole 1-11 along the axis, and a nut positioning part 3 suitable for the nut is provided in the central hole 1-11, and the nut positioning part 3 is located at In the front part of the central hole 1-11, the outer diameter of the ...
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The invention relates to a double-nut automatic tightening head assembly which comprises a tightening head and a moving sleeve; the tightening head comprises a head portion and a rod portion; the headportion is provided with a center hole; the front part of the center hole is provided with a nut positioning piece; the outside diameter of the rod portion is smaller than the outside diameter of thehead portion; the moving sleeve comprises a sliding section and a limiting section; the inside diameter of the sliding section is adapted to the outside diameter of the rod portion; the inside diameter of the limiting section is larger than the outside diameter of the rod portion; a cavity between the rod portion and the limiting section is internally provided with a reset spring; the back end ofthe rod portion is provided with a limiting plate; the sliding section is connected to the rod portion in a sleeved manner, is connected with the rod portion through a pin and is provided with a spiral groove; the pin penetrates through the spiral groove; and an alignment spring is arranged between the sliding section and the head portion. The invention further relates to a tightening mechanism adopting the double-nut automatic tightening head assembly. The tightening mechanism further comprises a drive mechanism; the drive mechanism comprises a transverse moving mechanism, a longitudinal moving mechanism and a rotating mechanism. By adopting the tightening mechanism, automatic tightening of double nuts can be realized, manual operation is not needed, and the assembly efficiency is greatly improved.
Description
technical field [0001] The invention relates to a double nut automatic tightening head assembly and a tightening mechanism. Background technique [0002] In the prior art, an automatic tightening machine for tightening nuts includes a tightening head, a driving mechanism for driving the tightening head and a handle, the driving mechanism includes a moving mechanism and a rotating mechanism, and the rotating mechanism may be a motor, and the motor It is connected to the rear end of the tightening head through a reducer, and the front end of the tightening head is provided with an inner hole suitable for the nut, and a plurality of toothed grooves are arranged on the inner hole; when the tightening head is connected with the After the nuts are aligned, the motor works to drive the tightening head to rotate and tighten the nuts. Moving mechanism, the moving mechanism can drive the tightening head to move forward to tighten the nut; [0003] However, this method is still only ...
Claims
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Inventor徐淇徐萌于基磊
Owner龙口市汇金达智能设备有限公司