CN201164939Y

CN201164939Y - Guide structure for pipe-pipe welding head

Info

Publication number: CN201164939Y
Application number: CNU2008200323455U
Authority: CN
Inventors: 曾铭琪; 常红坡; 彭学云; 朱志毅
Original assignee: Kunshan Huaheng Engineering Technology Center Co Ltd
Current assignee: Kunshan Huaheng Engineering Technology Center Co Ltd
Priority date: 2008-02-28
Filing date: 2008-02-28
Publication date: 2008-12-17
Anticipated expiration: 2018-02-28

Abstract

The utility model discloses a guide structure used on a pipe-pipe welding head, which comprises a base plate, a plurality of rolling elements arranged on the external surface at one side of the base plate, and an open type rotating gear ring, wherein, the plurality of rolling elements are in circumferential arrangement on the base plate, the circumferential central line coincides with the central line of a through hole, and the rolling elements protrude from the surface of the base plate; and a circumferential groove is disposed on the external surface at one side of the open type rotating gear ring, the circumferential groove is in inserting fit with the plurality of rolling elements, the breadth of the circumferential groove is equal to the outside diameter of each rolling element, the central diameter of the circumferential groove is equal to the diameter of each distribution circle of the rolling elements, and the rotating gear ring exactly rotates along the rolling elements distributed circumferentially under the driving of a transition gear. The rolling elements are in rolling friction with the wall of the circumferential groove, and the rotating gear ring bears rather small resistance when in rotation.

Description

Be used in the guide frame on the pipe pipe welding head

Technical field

The utility model relates to a kind of guide frame that is used in the pipe pipe welding head.

Background technology

In the pipe pipe welding head of prior art, guide frame comprises substrate, be arranged on guide ring on the substrate, be arranged on boss on the described guide ring, rotate gear ring, be opened in the border groove on the described rotation gear ring, be arranged on rotationally in the groove of described border to the described boss of small part, rotate gear ring like this in the boss rotating process on guide ring, be sliding friction between the cell wall of boss and border groove, the resistance ratios that is subjected to when then rotating the gear ring rotation is bigger.

Summary of the invention

The purpose of this utility model provides a kind of guide frame that is applied to the pipe welding head, and rotating gear ring in this structure is rolling friction when rotating and between the rolling member.

For achieving the above object, the technical solution adopted in the utility model is: a kind of guide frame that is used on the pipe pipe welding head, comprise substrate, the rotation gear ring that is open type, be opened in the border groove on described rotation gear ring one side external surface, described substrate has a through hole that supplies welding work pieces to pass, the through-hole wall of described through hole is chiseled one section and is formed opening, this guide frame also comprises and is convexly equipped with on described substrate one side external surface and a plurality of rolling members that match with described border groove, a plurality of described rolling members distribute along the rotation direction of described rotation gear ring, embed in the groove of described border to the described rolling member of small part, described rotation gear ring rotates along a plurality of rolling members of circle distribution.

Described rolling member is arranged on described substrate one side external surface rotationally by turning cylinder, and this turning cylinder is circle distribution and is fixed on the substrate.

Described rolling member is a bearing, and the inner ring of this bearing is fixed on the turning cylinder, and a plurality of these bearings are spaced successively along the rotation direction of described rotation gear ring.

Because the utilization of technique scheme, the utlity model has following advantage: border groove on the rotation gear ring and a plurality of rolling members on the substrate are in the process of being rotatably assorted, be rolling friction between the cell wall of rolling member and border groove, it is less then to rotate the resistance ratios that is subjected to when gear ring rotates, promptly driving the energy that rotates the gear ring rotation can reduce, to save the energy.

Description of drawings

Accompanying drawing 1 is for having the schematic diagram of pipe pipe welding head of the present utility model;

Accompanying drawing 2 is for shedding the schematic diagram that has pipe pipe welding head of the present utility model behind the substrate;

Accompanying drawing 3 is along the cutaway view of A-A direction in the accompanying drawing 1;

Accompanying drawing 4 is for having the explosive view of pipe pipe welding head of the present utility model;

Wherein:

1, substrate; 2, rolling member; 3, through hole; 4, rotate gear ring; 5, border groove; 10, left clamp body; 11, right clamp body 12, first seal cover 13, second seal cover; 15, conducting ring 16, stage clip 17, gear cover plate; 18, cover plate through hole.

The specific embodiment

Further set forth structure of the present utility model and operation principle below in conjunction with accompanying drawing.

A kind of pipe pipe welding head, its outside left clamp body 10 of serving as reasons, right clamp body 11, the hermetically-sealed construction that first seal cover 12 on left clamp body 10 and right clamp body 11 and second seal cover 13 constitute, as shown in Figure 4, left side clamp body 10, right clamp body 11 is by handle (not shown) that case supports, left side clamp body 10, has the clamping chamber that is interconnected on the right clamp body 11, be provided with the guide frame that is used on the pipe pipe welding head between left side clamp body 10 and the right clamp body 11, shown in accompanying drawing 1-3, this structure is by substrate 1, the rotation gear ring 4 that is open type, be opened in the border groove 5 that rotates on gear ring 4 one side external surfaces, the a plurality of rolling members 2 that are arranged on substrate 1 one side external surfaces and match with border groove 5 are formed, this border groove 5 connects in a circumferential direction, substrate 1 has the through hole 3 of a circle of passing for welding work pieces, the through-hole wall of through hole 3 is chiseled one section and is formed opening, this opening is used for radially picking and placeing workpiece, a plurality of rolling members 2 are arranged along the rotation direction of rotating gear ring 4, and through hole 3 is arranged the circular arc concentric setting that forms with a plurality of rolling members 2, a plurality of rolling members 2 are circle distribution on substrate 1, its circle center's line and through hole 3 central lines, and rolling member 2 protrudes substrate 1 surface, rolling member 2 embeds in the border groove 5, the external diameter of the width of border groove 5 and rolling member 2 is basic identical, the central diameter of border groove 5 is identical with rolling member 2 distribution diameter of a circles, make to rotate gear ring 4 under the driving of transition gear just in time the rolling member along circle distribution rotate.

In the present embodiment, this rolling member 2 is a bearing, bearing is arranged on substrate 1 one side external surfaces rotationally by turning cylinder, this turning cylinder circle distribution is fixed on the substrate 1, and the inner ring of bearing is fixed on the turning cylinder, the border groove 5 and a plurality of bearing that rotate gear ring 4 cooperate, rotating gear ring 4 can rotate along a plurality of bearings, rotating gear ring 4 carries out in the rotating process at a plurality of rolling members 2 on substrate, be rolling friction between the cell wall of rolling member 2 and border groove 5, it is less then to rotate the resistance ratios that is subjected to when gear ring 4 rotates, and promptly driving the energy that rotates gear ring 4 rotations can reduce, to save the energy.The structure implementation of rolling member 2 can also be other, be designed to the structure of wheel as rolling member 2, above-mentioned turning cylinder is wheel shaft, rolling member 2 also can be ball, need offer the resettlement groove of an arrangement ball like this on substrate 1, this resettlement groove extends along the rotation direction of rotating gear ring 4, and the part that ball exposes groove face play the guiding role to the rotation of rotating gear ring 4, filling up ball in the resettlement groove, also is rolling friction between the cell wall of ball and border groove 5 like this.

But, when rolling member 2 adopts bearing arrangement, with respect to the structure that adopts wheel, because between the outer ring of bearing and the inner ring (perhaps turning cylinder) also is rolling friction, rotating the resistance that is subjected to when gear ring 4 rotates like this can further reduce, and for the structure that adopts ball, because ball just is positioned in the resettlement groove, do not have any connection with substrate, rotate gear ring 4 like this when rotating, the stability of ball guide effect may be bad.

Referring to Fig. 4, also be provided with the conducting ring 15 of open type between left side clamp body 10 and the right clamp body 11, one side of conducting ring 15 is conflicted the stage clip (not shown), one end of stage clip links to each other with gear cover plate 17, pass through stage clip, the opposite side of conducting ring 15 gently pastes and rotates gear ring 4, electric current transfers on the tungsten electrode that rotates on the gear ring 4 through conducting ring 15 like this, conducting ring 15 brings too big resistance can for the rotation of rotating gear ring 4 yet simultaneously, again because gear cover plate 17 and substrate 1 are the insulation materials, the signal of telecommunication that rotates like this on the gear ring 4 just can not leak, while guide ring 2, rotate gear ring 4, conducting ring 15 is between substrate 1 and gear cover plate 17, connect by bearing pin between substrate 1 and the gear cover plate 17, play the role of positioning.

Also have on the gear cover plate 17 and be used for the cover plate through hole 18 that the confession workpiece passes; the through-hole wall of cover plate through hole 18 is chiseled one section and is formed opening; during work; open first seal cover 12 and second seal cover 13 on left clamp body 10 and the right clamp body 11; workpiece is put into from opening part; then workpiece passes the clamping chamber of left clamp body 10 successively; the cover plate through hole 18 of gear cover plate 17; conducting ring 15; rotate gear ring 4; the through hole 3 of substrate 1; the clamping chamber of right clamp body 11; and by left clamp body 10 and 11 clampings of right clamp body; conducting ring 15; rotate gear ring 4 concentric settings; drive motors is through driving gear; transition gear drives and rotates gear ring 4 along rolling member 2 rotations; as shown in Figure 2; rotate gear ring 4 and drive the tungsten electrode rotation; the signal of telecommunication transfers on the tungsten electrode that rotates on the gear ring 4 through conducting ring 15; the tungsten electrode striking is welded workpiece; sealed pipe pipe welding head is when work, and its inside feeds protective gas, and is oxidized at weld to prevent workpiece.

Claims

1, a kind of guide frame that is used on the pipe pipe welding head, comprise substrate (1), the rotation gear ring (4) that is open type, be opened in the border groove (5) on described rotation gear ring (4) one side external surfaces, described substrate (1) has a through hole (3) that supplies welding work pieces to pass, the through-hole wall of described through hole (3) is removed one section and is formed opening, it is characterized in that: this guide frame also comprises a plurality of rolling members (2) that are convexly equipped with on described substrate (1) one side external surface, a plurality of described rolling members (2) are arranged along the rotation direction of described rotation gear ring (4), to the described rolling member of small part (2) embedding described border groove (5), described rotation gear ring (4) rotates along a plurality of rolling members (2).

2, the guide frame that is used on the pipe pipe welding head according to claim 1, it is characterized in that: described rolling member (2) is arranged on described substrate (1) one side external surface rotationally by turning cylinder, and this turning cylinder is arranged along the rotation direction of described rotation gear ring (4).

3, the guide frame that is used on the pipe pipe welding head according to claim 2, it is characterized in that: described rolling member (2) is a bearing, and the inner ring of this bearing is fixed on the turning cylinder.