CN2353464Y

CN2353464Y - Ball-type tube expander for metal racket frame

Info

Publication number: CN2353464Y
Application number: CN 98249401
Authority: CN
Inventors: 叶岳瑞; 林昭然
Original assignee: Individual
Current assignee: Individual
Priority date: 1998-12-02
Filing date: 1998-12-02
Publication date: 1999-12-15
Anticipated expiration: 2008-12-02

Abstract

The utility model relates to a ball-type tube expanding device for a metal racket frame, which comprises a main body, a sphere, a pushing and butting element, and a spiral connecting rod, wherein a containing space is arranged in the main body, and a circular hole is arranged on a ring wall; the sphere which is arranged in the containing space of the main body can roll freely, and the bottom of the sphere is butted by a guiding inclined surface of the top surface of the pushing and butting element. One end of the pushing and butting element, which is fixedly connected with the spiral connecting rod can slide along an axial direction in a reciprocating mode, so the sphere can convexly extend from the circular hole and is matched with the guide inclined surface; thus, the sphere can move up and down. Thereby, the abrasion of the pipe wall of a metal pipe can be reduced, the temperature of the pipe wall is lowered, the intensity of a finished goods is enhanced, and the defective rate of the finished goods is lowered.

Description

The ball-type pipe expander of metal racket frame

The utility model relates to a kind of pipe expander, particularly relates to a kind of making and forms contacting of point between metal tube and pipe expander, destroys to reduce inner wall of metal tube, and can promote the ball-type pipe expander of the metal racket frame of product quality and intensity.

As Fig. 1, shown in 2, the pipe expander of existing metal racket frame, be to adopt swage block (SWAGE) processing to be difficult in order to improve the common metal racket, can't produce in a large number and the uneven shortcoming of tube wall is made, it comprises a support 11, one sliding seat 12, one guiding device 13, one pipe expander 14, one conversion equipment 15 and delegation's mould 16, this support 11 tops one side is provided with a clamping seat 111, side for clamping one metal tube 17, and these support 11 end faces are provided with this clamping seat 111 and are the guide rail component 112 that array aligns, this sliding seat 12 is hubbed on the guide rail component 112 of this support 11, and with oil hydraulic cylinder 121 starts that are located at above this support 11, and this sliding seat 12 can these guide rail component 112 preceding Hous be slided, this guiding device 13 be installed on this sliding seat 12 and the center be the alignment these clamping seat 111 centers, when sliding this guiding device 13 of drive near clamping seat 111 by this sliding seat 12, make these metal tube 17 covers pass this guiding device 13 and hold the location, cooperate shown in Figure 3, this pipe expander 14 is to place this guiding device 13 with an axostylus axostyle 141, and an end is provided with fit expander 142 and can overlaps an awl piece 143 that passes this metal tube, make expander 142 support expansion by these central siphon 141 drawings, make this metal tube 17 can enlarge the radian of suitably setting local and continuously, this conversion equipment 15 is arranged on this sliding seat 12, and close admittedly mutually with this guiding device 13, and be connected with this pipe expander 14, the one side is provided with the pedestal 151 on the suitable inclined plane of a tool, these pedestal 151 bottoms be provided with one with the inconsistent runner 152 of these row mould 16 end faces, it can be moved these row mould 16 dipping and heavings change into horizontal move left and right, to control the expansion radian of this pipe expander 14.

Therefore, by the above-mentioned overall structure of forming, when this sliding seat 12 moves toward Hou, 15 of this conversion equipments move horizontally along with row mould 16 end face shapes will move up and down to change into, impel these axostylus axostyle 141 drawings or this expander 142 of pine oil, just can be fast once evenly, slick and sly and continuously utilize this pipe expander 14 that metal tube 17 is enlarged and suitably set radian, save man-hour to reach, and can make various caliber and change.

Really can reach the effect of expander by above-mentioned device, but, the pipe expander 14 that it adopted structurally still has shortcoming as described later, just, because this pipe expander 14 is to utilize wall friction in expander 142 side faces and the metal tube 17, make this metal tube 17 produce plastic deformation to enlarge caliber, this expander 142 and metal tube 17 inwalls form a kind of the contact friction effect with face, but, this " face " contact friction but makes tube wall produce high temperature easily, increase wearing and tearing, add the destruction of these expander 142 powerful shear stress, all make material crystalline texture produce difference row easily and change, make these metal tube 17 inwall intensity reduce, quality can't promote.

The purpose of this utility model is to provide a kind of making between metal tube and pipe expander to form contacting of point, destroys to reduce inner wall of metal tube, and can promote the ball-type pipe expander of the metal racket frame of product quality and intensity.

The ball-type pipe expander of the utility model metal racket frame, be on a support, to be pivoted with a sliding seat, this sliding seat top is provided with a guiding device, these guiding device central authorities are provided with a hollow loop bar, for being nested with interlock one pipe expander, and this sliding seat right side is equiped with the conversion equipment of a mat loop bar and this guiding device Joint, this conversion equipment bottom is pivoted with a runner, this runner can hold the pattern that the predetermined height of tool rises and falls, make loop bar be left and right sides drawing pipe expander, can finish the expansion of metal tube according to the difference of enlarged degree, it is characterized in that: this pipe expander more comprises a body, one spheroid, one ejection element and one bar that is spirally connected, this body is that an inside has the body that accommodation space and an end are open shape, its ring wall pre-position is provided with a circular hole that communicates with this accommodation space, this spheroid has suitable circle footpath and is installed in this accommodation space, and can roll freely, this ejection element is to be installed in this accommodation space and end face forms a guiding face, for this spheroid bottom of contact, affixed this of this ejection element one end bar that is spirally connected in addition, this bar end that is spirally connected places and is installed in this loop bar, and can drive this ejection element vertically toward polyslip, make this spheroid eject and be elevating movement by circular hole.

Be elaborated below by Cui embodiment and accompanying drawing ball-type pipe expander to the utility model metal racket frame:

Fig. 1 is the schematic perspective view of existing pipe expander.

Fig. 2 is existing pipe expander processing schematic diagram.

Fig. 3 is the exploded perspective view of existing pipe expander.

Fig. 4 is the assembled sectional view of the utility model preferred embodiment.

Fig. 5 is the pipe expander exploded perspective view of the above-mentioned preferred embodiment of the utility model.

Fig. 6, the 7th, the illustrative view of the above-mentioned preferred embodiment of the utility model.

Fig. 8 is the finished product schematic diagram of the above-mentioned preferred embodiment of the utility model.

As shown in Figure 4, the ball-type pipe expander of metal racket frame of the present utility model, itself and existing apparatus are roughly the same, be to set firmly a chuck 21 in a support 20 1 sides, and a sliding seat 30 is pivoted on this support 20, these sliding seat 30 tops are provided with a guiding device 40, these guiding device 40 central authorities are provided with a hollow loop bar 41, for being nested with interlock one pipe expander 50, and these sliding seat 30 right sides are equiped with the conversion equipment 60 of this loop bar 41 of a mat and these guiding device 40 Joints, these conversion equipment 60 bottoms are pivoted with a runner 61, this runner 61 can hold the pattern 70 that the predetermined height of tool rises and falls, make this loop bar 41 be left and right sides drawing pipe expander 50, can finish the expansion of workpiece according to the difference of enlarged degree, the utility model is for a change: as Fig. 5,6, shown in 7, this pipe expander 50 is by a body 51, one spheroid 52, one ejection element 53 and one bar 54 that is spirally connected is formed.

This body 51 is bodys that an inner tool accommodation space 511 and an end are open shape, it is provided with a saturating empty circular hole 512 that communicates with this accommodation space 511 in the ring wall pre-position, and these body 51 inboard blind end lower edges convex with the suitably block 513 of height of a tool.

This spheroid 52 has suitable circle footpath and can be installed in the accommodation space 511 of this body 51, and can roll freely, and in the present embodiment, the circle footpath of this spheroid 52 is the apertures that are slightly less than this circular hole 512, is deviate from by circular hole 512 to prevent this spheroid 52.

This ejection element 53 is installed in the accommodation space 511 of this body 51, its preceding half section slide block 531 with big footpath, these slide block 531 end faces form a guiding incline 532, for these spheroid 52 bottoms of contact, this guiding incline 532 is to be tilted gradually down by slide block 531 apical margins, make these slide block 531 front ends form a stop section 531 ＇, and this block 513 of can conflicting, to reach position-limiting action, in addition, half section of these ejection element 53 Hou form a jack-post 533 than the roundlet footpath, and these jack-post 533 inside have screw thread, are located at bar 54 leading portions that are spirally connected in this loop bar 41 with the Hou section spiral shell that is spirally connected, and can drive this ejection element 53 vertically toward polyslip, this spheroid 52 can be protruded out by this circular hole 512 eject, and cooperate this guiding incline 532, and make this spheroid 52 be elevating movement.

As shown in Figure 4, when desiring to carry out the expander operation, earlier a metal tube 80 is clamped between this chuck 21 and the guiding device 40, and drive this sliding seat 30 and move toward chucks 21, make this metal tube 80 form to be nested with fully and be coated on loop bar 41 outsides, then, drive this sliding seat 30 again towards moving right, at this moment, this conversion equipment 60 can be converted to pattern 70 fluctuating strokes on this metal tube 80, makes these loop bar 41 left and right sides drawings bar 54 that is spirally connected, and this ejection element 53 of one interlock, when this ejection element 53 was turned left slippage, this spheroid 52 was subjected to the ejection of guiding incline 532 and protrudes out outside circular hole 512, as shown in Figure 6, these metal tube 80 calibers are slowly enlarged, on the contrary, as shown in Figure 7, when this ejection element 53 is turned right slippage, this spheroid 52 can be subjected to guiding incline 532 guiding and gradually by deviating from this circular hole 512 and descending, and these metal tube 80 tube walls are dwindled gradually and continuously, so, just can be on demand with these metal tube 80 uniform diameter and finish continuously desire the expander size.

Pipe expander 50 of the present utility model is by this body 51, spheroid 52 and the 53 triangular cooperations of ejection element, to control the lifting of this spheroid 52, make this metal tube 80 be expanded into predetermined caliber according to user demand, it adopts the expander mode of this spheroid 52, make the contact friction for only having a few between pipe expander 50 and metal tube 80 inwalls, coefficient of friction reduces relatively between the two, can reduce tube wall temperature, reduce abrasion and destruction, can promote these metal tube 80 bulk strengths effectively and to reduce defective (bad) product and produce inner wall of metal tube.

Specifically, this conversion equipment 60 of the present utility model and pattern 70 also can servomotors and computer replacement, in operation, be to utilize the formula of computer to control the forward and backward of this servomotor, so as to more accurate and control this loop bar 41 left and right moving directions exactly, and complete and glidingly with these metal tube 80 expanders shape structure in the shape of a spiral, as shown in Figure 8, to promote this metal tube 80 overall construction intensity.

Claims

1. the ball-type pipe expander of a metal racket frame, comprising a support, is hubbed on sliding seat, on this support and is located at this sliding seat top and central authorities and is provided with the conversion equipment that pipe expander and that the guiding device, of a hollow loop bar is nested with interlock by this guiding device loop bar is located at this sliding seat right side and this loop bar of mat and guiding device Joint, a runner is pivoted bottom this conversion equipment, this runner holds the pattern that a height rises and falls, and it is characterized in that: this pipe expander more comprises a body, a spheroid, an ejection element and a bar that is spirally connected; This body is the body that an inner tool accommodation space and an end are open shape, and its ring wall is provided with a circular hole that communicates with this accommodation space; This spheroid rollably is installed in this accommodation space; This ejection element can be installed in this body accommodation space and end face has the guiding face of this spheroid bottom of a contact along body shaft with yearning for polyslip, affixed this of this ejection element one end bar that is spirally connected; And this bar end that is spirally connected places and is installed in this loop bar.

2. the ball-type pipe expander of metal racket frame as claimed in claim 1 is characterized in that: the circle footpath of this spheroid is less than the aperture of this circular hole.

3. the ball-type pipe expander of metal racket frame as claimed in claim 1 is characterized in that: the inboard blind end lower edge of this body is provided with the block of this ejection element of a block.