An electric pipe expander
A pipe expander and electric technology, applied in the field of pipe expanders, can solve the problems of time-consuming and laborious positioning and clamping of the pipe to be processed, the processing quality of the bell mouth cannot be guaranteed, the structure of the electric pipe expander is complicated, etc., so as to save time and labor for clamping. , Light weight, smaller feed deformation
Active Publication Date: 2021-01-15
ZHEJIANG VALUE MECHANICAL & ELECTRICAL PROD CO LTD
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Problems solved by technology
[0003] The present invention mainly provides an electric pipe expander with simple structure, high positioning accuracy of the pipe to be processed, time-saving and labor-saving pipe expansion processing, and good bell mouth processing quality, which solves the relative structure of the electric pipe expander existing in the prior art. Complicated, time-consuming and labor-intensive positioning and clamping of the pipe to be processed, low positioning accuracy, and technical problems such as the quality of bell mouth processing cannot be guaranteed
Method used
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Embodiment
[0023] Such as Figure 4 with Figure 5 As shown, an electric pipe expander of the present invention includes a pipe expander body 1, and a plastic shell 21 is mounted on the pipe expander body 1, and the plastic shell 21 extends downward to form a long strip-shaped motor accommodation cavity 22. A rechargeable battery 24, a motor 23, and a worm gear mechanism are sequentially installed in the motor housing cavity 22 from bottom to top. The output shaft end of the motor 23 is coaxially connected to the worm screw 27 of the worm gear mechanism, and the other end is electrically connected to the rechargeable battery 24. Such as figure 1As shown, there is a mandrel sliding chamber 2 on the expander body 1 corresponding to the worm wheel 16 of the worm gear mechanism. The mandrel sliding chamber 2 is coaxial with the worm wheel 16 and extends into the middle hole of the worm wheel 16. The open end of the sliding chamber 2 is equipped with a chuck body 4 that can hold the pipe 3 ...
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The invention discloses a pipe expander, provides an electric pipe expander with simple structure, high pipe positioning precision, machining time and power saving and high horn port machining quality, and solves the technical problems complicated structure, pipe positioning time and power waste, low positioning precision and incapability of guaranteeing the horn port machining quality in a traditional electric pipe expander in the prior art. The electric pipe expander comprises a pipe expander main body, and a mandrel slide cavity formed in the pipe expander main body; a chuck body capable ofclamping pipes to be machined is arranged at an opening end of the mandrel slide cavity; a mandrel is slidingly connected into the mandrel slide cavity; an inclined pipe expanding cone is arranged atthe outer side end of the mandrel, and an elastomer accommodating cavity is formed in the inner side end; a guide screw rod with a transmission nut is arranged on the pipe expander main body oppositeto an opening of the elastomer accommodating cavity; a flat key is arranged on the mandrel; the outer side end of the flat key is slidingly connected with a worm rod mechanism in the axial direction,and the inner side end is slidingly connected into an axial key slot of the transmission nut; and an elastomer is clamped between the flat key and the bottom surface of the elastomer accommodating cavity.
Description
technical field [0001] The invention relates to a pipe expander, in particular to an electric pipe expander with simple structure, time-saving and labor-saving pipe expansion processing, and good bell mouth processing quality. Background technique [0002] During the installation or maintenance of the air conditioner, it is usually necessary to use a pipe expander to expand the refrigerant copper pipe. The existing pipe expanders generally include manual pipe expanders and electric pipe expanders. The manual pipe expanders are small in size and heavy in weight. Lightweight, but the expansion process is time-consuming and labor-intensive, and the processing quality of the bell mouth is greatly affected by man-made. The electric pipe expander saves time and effort when expanding the pipe, but due to its relatively complicated internal mechanical structure and large volume, it is not convenient to carry and use. At the same time, the two kinds of pipe expanders generally need ...
Claims
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IPC IPC(8): B21D41/02B21D43/00
Inventor 蒋友荣
Owner ZHEJIANG VALUE MECHANICAL & ELECTRICAL PROD CO LTD