CN201529884U

CN201529884U - Rotating shaft welding fixture for lower-voltage power distribution cabinet drawer seat driving mechanism

Info

Publication number: CN201529884U
Application number: CN200920234373XU
Authority: CN
Inventors: 朱未东; 江长生; 陈咸
Original assignee: JIANGSU HUINENG ELECTRIC CO Ltd
Current assignee: JIANGSU HUINENG ELECTRIC CO Ltd
Priority date: 2009-08-06
Filing date: 2009-08-06
Publication date: 2010-07-21
Anticipated expiration: 2019-08-06

Abstract

The utility model discloses a rotating shaft welding fixture for a low-voltage power distribution cabinet drawer seat driving mechanism, wherein a positioning square bar is fixed in a square groove on a bottom plate, positioning notches are arranged at two ends and the middle of the positioning square bar, the positioning notch is fixed with a guiding block corresponding to the position of a small sector gear and a position locating block corresponding to the position of a large sector gear, the position locating block is fixedly provided with a gear angle locating block, and the guiding block is fixedly provided with a locating slide block; the bottom plate between the position locating block and the guiding block is fixedly provided with two axial angle locating blocks, and the side surface of the axial angle locating block is fixed with an axial locating block matched with a circular groove on the rotating shaft. Two clamps are respectively fixed on the two axial angle locating blocks and are symmetrically distributed at two sides of the two small sector gears, and two springs are positioned right below the locating slide block and are right opposite to the two small sector gears in vertical direction. The four sector gears are clamped and welded by one-time operation, thus improving welding precision, and having accurate positioning, and convenient and fast clamping.

Description

The rotating shaft welding fixture of drawer seat drive mechanism of low-voltage switch board

Technical field

The utility model relates to the low voltage electrical equipment processing technique field, relates in particular to the rotating shaft welding fixture of driving mechanism in the drawout chassis of low-voltage distribution cabinet.

Background technology

As Fig. 1, in the rotating shaft 19 of the drawout chassis driving mechanism of low-voltage distribution cabinet, be welded with four sector gears, two little sector gears 12 in the middle of promptly and two big sector gears 10 at two ends, these four sector gears not only have the angle position requirement, and relative position requirement in addition on the direction of principal axis of rotating shaft 19, therefore, the weld jig of processing must guarantee the angle and the position relation of four sector gears, also must stay necessary welding space to welding gun, when all gears all weld finish after, rotating shaft 19 must be able to be taken out from anchor clamps easily.

Present employed anchor clamps defective is: 1, utilize tooth-formation of gear to carry out positioned in angular relation, though the angle position relation can be determined that accurately the clamping gear is very inconvenient, clamping efficient is low; 2, when producing, can only disposable weldering two gears earlier, and then carry out the secondary clamping and weld two other gear, can't guarantee the angle and the positional precision of four gears.

Summary of the invention

The purpose of this utility model is the rotating shaft welding fixture that proposes a kind of drawer seat drive mechanism of low-voltage switch board for the defective that overcomes prior art, can promote the angle and the position welding precision of four gears of rotating shaft, the raising rotating shaft is welded on the operating efficiency in the actual production.

The technical solution adopted in the utility model is: place on this weld jig rotating shaft and on four sector gears, stationary positioned device on the base plate of weld jig, the side's of location bar is fixed in the square groove on the base plate, the two ends and the centre of the side's of location bar are provided with locating notch, fix and the corresponding guide pad in little sector gear position on the locating notch, fix respectively on the locating notch position and the corresponding position locating piece in big sector gear position, fixed installation gear angle orientation piece fixedly mounts positioning sliding block in the locating piece of position in the guide pad; Two shaft angle degree locating pieces of fixed installation on the base plate between position locating piece and the guide pad are fixed an axial location piece that matches with annular groove in the rotating shaft in shaft angle degree locating piece side.

Two clamps are separately fixed on described two shaft angle degree locating pieces, and are symmetrically distributed in two little sector gear both sides, two springs be positioned at positioning sliding block just below and in vertical direction over against two little sector gears.

The utility model rotating shaft is when clamping, the big sector gear at two utilizes their two hypotenuses to position, two middle little sector gears utilize their symmetrical centre position profile of tooth to locate, and rotating shaft then utilizes the annular groove of its side to determine the position relation of its left and right directions.For avoid the inclined-plane when contact in the gapped variation that causes angle of above-below direction, utilize the locating piece of profile of tooth location to make the centre in above-below direction structure slidably, withstand locating piece with spring simultaneously, guarantee that two little sector gears contact all the time with locating piece.The fan-shaped active grab that then utilizes at two is pressed on them on the inclined-plane, location, the angle of four sector gears and the relation of position have so just finally been determined, its beneficial effect is: make four sector gears in the rotating shaft accomplish No. one time clamping when welding, once welding, improved their welding precision, in addition, owing to utilized active grab and slider guide mechanism, four sector gears are accurately located, not only relative angular position is accurate, and make rotating shaft convenient and swift when clamping, and avoided the cumbersome of screw attachment, improved operating efficiency in actual applications.

Description of drawings

Below in conjunction with the drawings and specific embodiments the utility model is described in further detail.

Fig. 1 be rotating shaft and four sector gears after welding is good angle and the perspective view of position relation.

Fig. 2 is a perspective view of the present utility model.

Fig. 3 is the perspective view of removing among Fig. 2 behind position locating piece 3 and the guide pad 5.

Among the figure: 1. base plate; 2. the side's of location bar; 3. position locating piece; 4. shaft angle degree locating piece; 5. guide pad; 6. axial location piece; 7. gear angle orientation piece; 8. positioning sliding block; 9. clamp; 10. big sector gear; 11. big sector gear hypotenuse; 12. little sector gear; 13. little sector gear symmetrical centre position profile of tooth; 14. annular groove; 15,16,17. locating notches; 18. spring; 19. rotating shaft.

The specific embodiment

As Fig. 1, be welded with four sector gears in the rotating shaft 19 of the drawout chassis driving mechanism of low-voltage distribution cabinet, wherein, weld two big sector gears 10 respectively at the two ends of rotating shaft 19, weld two little sector gears 12 in the centre of rotating shaft 19 respectively, in the rotating shaft 19 between big sector gear 10 therein and the little sector gear 12 annular groove 14 is set.

Shown in Fig. 2,3, stationary positioned device on the base plate 1 of weld jig, this positioner comprises location side's bar 2 and various locating pieces etc.Location side's bar 2 is fixed in the square groove on the base plate 1, two ends and the middle locating

notch

15,16,17 that is provided with three diverse locations at location side's bar 2, fixed guide piece 5 on the position of locating notch 16, guide pad 5 is corresponding with the position of little sector gear 12.Difference fixed position locating piece 3 on the position of locating notch 15,17, position locating piece 3 is corresponding with the position of big sector gear 10.Position locating piece 3 and guide pad 5 are fixed on the base plate 1 by screw, the axial location of position locating piece 3 and guide pad 5 is determined by three notches on location side's bar 2, has so just determined two big sector gears 10 and the position dimension of two little sector gear symmetrical centre position profiles of tooth 13 in rotating shaft 19 axially by the side's of location bar 2 and position locating piece 3.

As Fig. 3, fixed installation gear angle orientation piece 7 in position locating piece 3, fixed installation positioning sliding block 8 in guide pad 5 is by the angular relationship of gear angle orientation piece 7 and positioning sliding block 8 definite four sector gears.Two shaft angle degree locating pieces 4 of fixed installation on the base plate 1 between position locating piece 3 and the guide pad 5, shaft angle degree locating piece 4 can only move rotating shaft 19 along the normal plane perpendicular to base plate 1.Fix an axial location piece 6 in shaft angle degree locating piece 4 sides, the annular groove 14 in the rotating shaft 19 of this axial location piece 6 and Fig. 1 is matched, determined the axial location of rotating shaft 19 on weld jig.

Two clamps 9 are separately fixed on two shaft angle degree locating pieces 4 by screw, they are symmetrically distributed in the both sides of little sector gear 12, two springs 18 be positioned at positioning sliding block 8 just below, and face two little sector gears 12 in vertical direction, like this, two clamps 9 can keep the stress balance of rotating shaft 19 when promoting rotating shaft 19 downwards.

When after above-mentioned four sector gears are enclosed within the rotating shaft 19, being placed on the weld jig together, pulling the 9 promotion rotating shafts 19 of two clamps by hand moves downward along shaft angle degree locating piece 4, in the process of motion, two little sector gear 12 promotion positioning sliding blocks 8 overcome spring 18 power and move downward, when the big sector gear hypotenuse 11 on the big sector gear 10 at two ends contacts with gear angle orientation piece 7, rotating shaft 19 stop motions.At this moment, the big sector gear 10 at two ends has been determined angle and position by gear angle orientation piece 7 and position locating piece 3, two little sector gears 12 have been determined angle and position by positioning sliding block 8 in rotating shaft 19 motion processes, like this, four sector gears have just been determined the relative position relation of angle and position apace in clamping process.

Claims

1. the rotating shaft welding fixture of a drawer seat drive mechanism of low-voltage switch board, place on this weld jig rotating shaft (19) and on four sector gears, base plate (1) at weld jig is gone up the stationary positioned device, it is characterized in that: the side's of location bar (2) is fixed in the square groove on the base plate (1), the two ends and the centre of the side's of location bar (2) are provided with locating notch (15,16,17), locating notch (16) is gone up the fixing guide pad (5) corresponding with little sector gear (12) position, locating notch (15,17) fix respectively on the position and the corresponding position locating piece (3) in big sector gear (10) position, fixed installation gear angle orientation piece (7) in the position locating piece (3), fixed installation positioning sliding block (8) in the guide pad (5); Base plate (1) between position locating piece (3) and the guide pad (5) is gone up fixed installation two shaft angle degree locating pieces (4), fixes an axial location piece (6) that matches with annular groove (14) in the rotating shaft (19) in shaft angle degree locating piece (4) side.

2. the rotating shaft welding fixture of drawer seat drive mechanism of low-voltage switch board according to claim 1, it is characterized in that: fix two clamps (9) on described two shaft angle degree locating pieces (4), two clamps (9) are symmetrically distributed in two little sector gears (12) both sides, two springs (18) be positioned at positioning sliding block (8) just below and in vertical direction over against two little sector gears (12).