CN104816081A

CN104816081A - Machining device of large-capacity circuit breaker contact system

Info

Publication number: CN104816081A
Application number: CN201510128006.1A
Authority: CN
Inventors: 王小玲
Original assignee: Dynamo-Electric Co Ltd In Wild Island Leqing
Current assignee: Jiaxing Rainbow Optical Film Technology Co., Ltd.
Priority date: 2015-03-23
Filing date: 2015-03-23
Publication date: 2015-08-05
Anticipated expiration: 2035-03-23
Also published as: CN104816081B

Abstract

The invention discloses a machining device of a large-capacity circuit breaker contact system. The machining device comprises a feeding mechanism, a clamp and a welding mechanism. A linear rail is fixedly arranged on a working table board, and the clamp is arranged on the linear rail; and the welding mechanism is vertically arranged on the inner segment of the linear rail. The machining device is small in operation error, good in operation environment, small in personnel operating risk, low in cost and capable of achieving continuous efficient work; the size control precision of operation clamp forceps is high; the welding deformation of a welding electrode is small, and the welding energy consumption losses are small; hardening of a soft connection and a touch panel is relieved, the welding quality is stable, a step plate area of a welding table is large, and assembling, current bearing capacity, touch on-off synchronization, ultimate breaking capacity, service life, temperature rising, dynamic thermal stability and use safety and performance are obvious facilitated.

Description

A kind of processing unit (plant) of large capcity breaker contact system

Technical field

The invention belongs to electrical equipment technology technical field, for clamping chip moving contact flexible connection and contact plate in welding processing process, relating to a kind of processing unit (plant) of large capcity breaker contact system.

Background technology

In electronic equipment and breaker contact system; usually can relate to strand copper wire or weave copper cash and be connected with the conducting element of multiple-grooved conductive copper plate is shaping; for the quality of a grade or the shaping quality of connection of second gear contact system, directly have influence on the temperature rise of product, dynamic thermal stability and service life.

The contact system of existing Large Copacity breaker of plastic casing uses simple clamp to adopt the mobile substep welding of manual operations, the inter process interval is long, need personnel and equipment many, occupied ground is large, labor strength is large, operating environment is poor, do not have suitable fixture welding to be terminated uncooled product to get from operating desk dress, clamp inconvenient operation and inaccurate, high to the technical requirement of operating personnel, efficiency is low, quality is unstable, the critical size of multi-disc moving contact flexible connection to terminal plate (seat) end and the uniformity of Ge Lu flexible connection tightness can not be ensured, easily cause welding deformation and the burr of flexible connection and contact plate, the Large Copacity breaker of plastic casing with second gear contact system of such as 1000-1600A, existing 5 flexible connections near and be placed on the plate contact plate of L-type (manual operations), without location, solder joint height is easily caused to differ, the skew of left and right solder joint (weldering knot), the connection area of simply connected junction is little, loaded current ability is weak, manual operations flexible connection and moving contact component, easily causing flexible connection to weld knot runs out of outside contact plate, these deficiencies easily cause following harm:

One is the difference of multi-disc moving contact flexible connection length size, cause a movable contact than another movable contact prior to separating, cause scaling loss situation between contact different, thus cause the imbalance that movable contact contacts with stationary contact, big contact particularly in the middle of second gear is main contact and arcing contact, after flexible connection dislocation causes scale error, movable contact and stationary contact contact area reduce, and cause the rising of temperature rise; Cause the scaling loss of striking contact during disjunction short circuit current, or electric arc can not be guided to the both sides of arc-chutes by striking contact in time, causes the scaling loss of both sides contact;

Two is that contact system is arranged on contact supporting, locating surface is that the afterbody of moving contact contacts with contact supporter face with flexible connection welding position, because Large Copacity breaker of plastic casing action required power own is large, in conjunction with the afterbody of moving contact and flexible connection welding position welding deformation and dislocation, and weldering knot is uneven and is easily stuck on contact supporting wall, be difficult to assembling, small deformation uses that other instrument is rigid to be loaded into, deciliter time also affect the synchronism of contact action, affect the breaking capacity of breaker, tightness between contact flexible connection and contact plate is inconsistent, be difficult to the stable and consistent realizing electrodynamic repulsion force compensation,

Three is support because Large Copacity breaker of plastic casing contact is arranged on contact by several pieces parallel contacts, (prior art easily produces scleroma to the welding portion of moving contact and flexible connection or flexible connection and contact plate, or protrude scleroma), contact with contact seating surface, during each moving contact deciliter, reduce the contact resistance hardening and contact with contact seating surface, reduce the requirement (General Requirements >=6m/S) of breaker of plastic casing breaking speed, add the dead time of the electric arc that disjunction short circuit current causes, increase the electrical wear of contact or quick scaling loss, cause the shortening in breaker life-span, reduce the ultimate short-circuit breaking capacity of breaker of plastic casing,

Four is that flexible connection hardens the contact resistance and friction that contact with contact seating surface, the load of short circuit heavy current, accelerate the fracture of flexible connection, another situation is exactly long in order to avoid hardening, do not have harden flexible connection deciliter time, the unavoidable card of flexible connection touches on the straightedge limit of L-type contact plate, produce dissection, jagged in conjunction with L-type plate itself, loaded current ratio does not have ability jaggy low, flexible connection breaks stock very soon, conductive contact contact system loaded current ability is caused to decline or short circuit sparking, the service life of temperature rise rising or the breaker that terminates in advance, another cause cause breaker point, resistance increases when closing, and causes breaker to be difficult to point, closes, make breaker point, cooperation inefficacy,

Five is that normally upper/lower electrode direct-electrifying is to pressure for welding contact system, and because plate contact plate area is comparatively large, area of dissipation is large, and required welding current is large, and energy consumption is high, the easy areal deformation of bottom electrode, and change frequent, cost is high.Concentrate heating to solve, have equipment manufacturer to adopt increase by 1 cylinder in secondary loop to be energized to bottom electrode, be used for shortening galvanic circle and concentrated current density, this also makes secondary loop produce eddy current, and electrode is very easily softening under eddy current effect causes the lost of life.Eddy current produces harm to secondary loop and transformer in addition.This with the way shortening equipment life and improper.

Realize High-speed machining, be usually all on equipment, design two sleeve clamps, and the device that two covers are supporting, equipment investment is too high, and the recovery time limit is oversize, and general enterprises is more difficult to be born; Normally adopt and fix a fixture on equipment; But thisly just can not realize quick-replaceable, previous product facility is adding man-hour, manually always idle wait is processing, and falls back on material loading or lower material level, manually go up more nextly to expect, be above over the course of work repeated again above, and efficiency is low, yields poorly.

Summary of the invention

The object of this invention is to provide a kind of processing unit (plant) of large capcity breaker contact system, solve exist in prior art there is no special equipment, adopt handwork, inefficiency, the insecure problem of product quality.

The technical solution adopted in the present invention is, a processing unit (plant) for large capcity breaker contact system, is divided into feed mechanism, fixture and welding mechanism, work top is fixedly installed rectilinear orbit, rectilinear orbit is provided with fixture, is vertically disposed with welding mechanism at the inner segment of rectilinear orbit.

The processing unit (plant) of large capcity breaker contact system of the present invention, is further characterized in that:

The structure of feed mechanism is,

Comprise feeding cylinder, feeding cylinder is fixed on work top, and feeding cylinder is arranged on the extended line of the outer section of rectilinear orbit, and feeding cylinder is in transmission connection with plug fixator, for clamping plug-in handle in the groove of plug fixator, groove upper surface is crimped with L-type fixed head.

The structure of plug fixator is,

Comprise clamp body, in the long section main body of clamp body, have clamp groove, be installed with T-shaped pressing plate on the rear port edge of clamp groove, in clamp groove, be provided with spring, spring rear end and T-shaped pressing plate inner termination apical grafting, spring at front end and adjustable cramp inner face apical grafting; Adjustable cramp external end head cross section is double step profile, and under the expansion force effect of spring, adjustable cramp relies on step be stuck in the front aperture of fixing pincers and stretch out, and forms adjustable cramp with the jaw of fixing pincers.

The structure of fixture is,

Comprise base plate, base plate is slidably arranged on rectilinear orbit, and base plate is connected with the plug-in handle other end, and before and after base plate, both sides are installed with one group of Z-type gripper shoe respectively, is jointly provided with gripper shoe two groups of Z-type gripper shoe upper surfaces; The below of gripper shoe is connected with bottom electrode; The counterbore grafting of pin one and pin two and busbar is passed through in gripper shoe front end; Gripper shoe both sides are installed with back-up block, each back-up block are fixed with respectively left L-type plate and right L-type plate, and left L-type plate and right L-type plate are upwards fixed with a handle respectively; Arc groove on each back-up block bearing pin that moving contact passes on positioning supports contact system; Left L-type part and right L-type part is furnished with rearward in the middle of gripper shoe.

The structure of gripper shoe is,

Support plate body front center is provided with boss, and the front end face of boss is provided with screwed hole six, and the upper surface of boss is provided with through hole three, the step surface on boss both sides is respectively arranged with screwed hole five; Have before and after support plate body penetrating before end slot, medial launder and rear end slot, be respectively arranged with multiple through hole two on the both sides of front end slot, medial launder and rear end slot by gripper shoe edge, be respectively arranged with screwed hole four in front end slot two side; Via hole is provided with in the middle of medial launder and rear end slot connecting plate.

Left L-type part and the symmetrical installation of right L-type part, the gauge of the main arc contact in the middle of contact system is as interval, the minor face deep trouth of left L-type part and right L-type part is respectively used to install initiatively contact one and initiatively contact two, and is fixed by screw with the via hole in gripper shoe by the through hole one on left L-type part and the right long limit of L-type part.

The structure of welding mechanism is,

Comprise bottom electrode, top electrode, conductive supporting electrode one and conductive supporting electrode two, wherein bottom electrode is connected and fixed by screwed hole seven and the via hole screw in gripper shoe; Conductive supporting electrode one and conductive supporting electrode two relative spacing are arranged, and conductive supporting electrode two is positioned at below rectilinear orbit, and conductive supporting electrode two and cylinder one are in transmission connection, and conductive supporting electrode one is fixedly connected with electrode tip holder,

Top electrode is provided with above conductive supporting electrode one and conductive supporting electrode two, top electrode is provided with exhaust duct on one side, top electrode is upwards fixedly connected with fixed head one, fixed head one and guide rail bracket are slidably connected, guide rail bracket side is provided with pin, and the piston rod end of this pin and cylinder two is in transmission connection, the solder side of top electrode crimps rear laminating downwards with the upper back-up block of bottom electrode.

The structure of bottom electrode is,

Comprise back-up block, lower support block, rear support block and front support block, front support block upper surface is provided with screwed hole seven, the rear surface of upper back-up block has screwed hole eight, and the upper surface of upper back-up block has screwed hole ten, laterally has screwed hole nine in the centre of bottom electrode; Front support block upper surface is horizontal plane.

Busbar structure is,

Have equidistant multiple inclined-planes U-type groove in rectangular slab front end, have at least one fixing counterbore at rectangular slab Rear body;

This rectangular slab or be transformed to semi arch plate, or round rectangle plate.

Inclined-plane and the rectangular slab upper surface angle of each inclined-plane U-type groove are 15 °-20 °.

The invention has the beneficial effects as follows, fixture has the shaping location of time processing, clamping, quick-replaceable (plug-in) function, operate miss is little, good operational environment, human users's danger are little, cost reduces, achieves continuous high-efficient operation, and operation clamp size control accuracy is high; Welding electrode welding deformation is little, welding energy loss is little, alleviate the scleroma of flexible connection and contact plate, welding quality stable, welding stepped plate area are large, be obviously conducive to the assembling of large capcity breaker contact system, synchronism that current carrying capacity, contactor divide, ultimate breaking capacity and service life, temperature rise, the safety of dynamic thermal stability and use and performance.

Accompanying drawing explanation

Fig. 1 is existing a kind of stepped ramp type contact system busbar (contact plate) schematic perspective view;

Fig. 2 is busbar 24 schematic perspective view of the embodiment of the present invention 1;

Fig. 3 is busbar 24 schematic perspective view of the embodiment of the present invention 2;

Fig. 4 is busbar 24 schematic perspective view of the embodiment of the present invention 3;

Fig. 5 is back-up block 4 structural representation in fixture 100 of the present invention;

Fig. 6 is the structural representation of left and right L-type part symmetrical in fixture 100 of the present invention;

Fig. 7 is gripper shoe 9 structural representation in fixture 100 of the present invention;

Fig. 8 is bottom electrode 10 structural representation of the present invention;

Fig. 9 is plug fixator 21 three-dimensional structure diagram in fixture 100 of the present invention;

Figure 10 is adjustable cramp 2101 structural representation that the present invention plugs in fixator 21;

Figure 11 is T-shaped pressing plate 2103 structural representation that the present invention plugs in fixator 21;

Figure 12 is fixing pincers 2105 structural representation that the present invention plugs in fixator 21;

Figure 13 is the three-dimensional structure diagram one of large capcity breaker contact system processing unit (plant) of the present invention;

Figure 14 is the three-dimensional structure diagram two of large capcity breaker contact system processing unit (plant) of the present invention;

Figure 15 be in Figure 14 A to the three-dimensional structure diagram of fixture 100 and feed mechanism;

Figure 16 is the connection layout of existing a kind of Large Copacity breaker of plastic casing second gear contact system and busbar 24.

In figure, 1. handle, 2. left L-type plate, 3. right L-type plate, 4. back-up block, 5. left L-type part, 6. right L-type part, 7. interval, 8. through hole one, 9. gripper shoe, 10. bottom electrode, 11. screws one, 12. screws two, 13. limited blocks, 14. pins one, 15. pins two, 16. screws three, 17.Z type gripper shoe, 18. base plates, 19. plug-in handles, 20.L type fixed head, 21. plug fixators, 22. feeding cylinders, 23. rectilinear orbits, 24. busbars, 25. exhaust ducts, 26. limited blocks, 27. fixed heads one, 28. guide rail brackets, 29. top electrodes, 30. electrode tip holders, 31. cylinders one, 32. conductive supporting electrodes one, 33. conductive supporting electrodes two, 34. fixed heads two, 35. breather pipes, 36. cylinders two, 39. work tops,

41. screwed hole one, 42. arc grooves, 43. screwed hole two, 44. front-end block, 45. screwed holes three,

50. flexible connections, 51. active contact one, 52. main arc contacts, 53. active contact two, 54. conductive plates,

90. boss, 91. rear end slots, 92. medial launders, end slot before 93., 94. via holes, 95. through hole two, 96. screwed hole four, 97. screwed hole five, 98. screwed hole six, 99. through hole three, 100. fixtures,

101. screwed holes seven, back-up block on 102., 103. screwed hole eight, 104. rear support blocks, 105. screwed hole nine, 106. lower support blocks, 107. front support blocks, 108. screwed holes ten,

2101. adjustable cramps, 2102. springs, 2103.T type pressing plate, 2104. grooves, 2105. clamp body,

21011. circular arc jaws, 21012. step binding clips, 21013. clamp rear ends,

21031. end plates, 21032. bolts hole two, jacking block before 21033., 21034. bolts hole three,

21051. rear end screwed holes, 21052. clamp grooves, 21053. jaws, 21054. lower convex platforms,

2401. liang of step flat boards, 2402. counterbores, 2403. stepped plates, 2404. rectangular slabs, 2405. inclined-plane U-type groove, 2406. semi arch plates, 2407. round rectangle plates.

Detailed description of the invention

Below in conjunction with the drawings and specific embodiments, the present invention is described in detail.

As Fig. 1, it is existing a kind of stepped ramp type contact system busbar (contact plate) structure, the front end of two step flat boards 2401 is provided with stepped plate 2403, has counterbore 2402, being connected and fixed for bolt in the Rear body centre of two step flat boards 2401.

As shown in Figure 2, Figure 3, Figure 4, the invention provides the structure of three kinds of busbars 24, busbar 24 is also called contact plate, for location and the weld groove of flexible connection weldering knot of living, as the linkage unit of the auxiliary equipment in large capcity breaker contact system process and contact system

Embodiment 1 is, equidistant multiple inclined-planes U-type groove 2405 (or multiple U-type groove) is had in rectangular slab 2404 front end, inclined-plane and the rectangular slab 2404 upper surface angle b of each inclined-plane U-type groove 2405 are 15 °-20 °, at least one fixing counterbore 2402 is had at rectangular slab 2404 Rear body, this rectangular slab 2404 can also be set to square plate or other shapes, the semi arch plate 2406 of such as embodiment 2, the round rectangle plate 2407 of embodiment 3 (square with arc-shaped converge body).The busbar 24 of these three kinds of embodiments is coordinated with fixture 100 by least one cylinder (being through in counterbore 2402) and forms and one-time positioning can clamp the fixture of clamping, and rectangular slab 2404 and soft strength and moving contact are clamped the contact system that welding fabrication is large capcity breaker contact system.

As shown in Figure 5, the structure of the back-up block 4 that the present invention is used is, the body front end boss of back-up block 4 is called front-end block 44, in the middle part of front-end block 44, level has screwed hole 3 45, protruding arc groove 42 is provided with in the middle part of the main body of back-up block 4, be respectively recessed plane in the side, front and back of arc groove 42, in the plane that front and back are recessed, have screwed hole 2 43 and screwed hole 1.

As shown in Figure 6, the left L-type part 5 that the present invention is used and right L-type part 6 structure are respectively arranged with through hole 1 at left L-type part 5 and right L-type part 6 long limit tail end by inner; In the middle part of left L-type part 5 and right L-type part 6 minor face, upper surface is respectively arranged with a deep trouth.

As shown in Figure 7, the structure of the gripper shoe 9 that the present invention is used is provided with boss 90 in the middle part of gripper shoe 9 body front end, and the front end face of boss 90 is provided with screwed hole 6 98, the upper surface of boss 90 is provided with through hole 3 99, and the step surface on boss 90 both sides is respectively arranged with screwed hole 5 97; Have before and after gripper shoe 9 main body penetrating before end slot 93, medial launder 92 and rear end slot 91, be respectively arranged with multiple through hole 2 95 on the both sides of front end slot 93, medial launder 92 and rear end slot 91 by gripper shoe 9 edge, be respectively arranged with screwed hole 4 96 in front end slot 93 two side; In the middle of medial launder 92 with rear end slot 91 connecting plate, be provided with via hole 94, via hole 94 is for regulating right L-type part 6, and the interval width of left L-type part 5, for the spacing interval of multiple flexible connection and contact assembly.

As shown in Figure 8, the structure of the bottom electrode 10 that the present invention is used, comprise the upper back-up block 102, lower support block 106, rear support block 104 and the front support block 107 that are approximately cross shape, front support block 107 upper surface is provided with screwed hole 7 101, the rear surface of upper back-up block 102 has screwed hole 8 103, the upper surface of upper back-up block 102 has screwed hole 10, laterally has screwed hole 9 105 in the centre of bottom electrode 10; The bevel angle a of upper back-up block 102 is 15 °-20 °, and this angle is the angle of place, upper surface opposite thread hole 8 103 vertical plane of upper back-up block 102, and front support block 107 upper surface is horizontal plane.15-20 wherein recommends angle, and the angle of the vertical plane of place, opposite thread hole 8 103 plane above of upper back-up block 102, rear support block 104 is for installing the position of contact plate, conductive plate, busbar.Front support block 107 is for installing the position of moving contact.

Bottom electrode 10 is arranged on below gripper shoe 9 and also upwards exposes back-up block 102 position, multiple screw is by the through hole 1 on left L-type part 5 and right L-type part 6, and altered the via hole 94 of gripper shoe 9, be connected and fixed with the screwed hole 7 101 on bottom electrode 10 front support block 107, the both sides screwed hole 9 105. on bottom electrode 10 is fixedly connected with by screw with the screwed hole 4 96. of both sides in gripper shoe 9.Busbar 24 is mounted on bottom electrode 10, and busbar 24 is not connected with gripper shoe 9.

As shown in Figure 9, the structure of the plug fixator 21 that the present invention is used is, comprise the clamp body 2105 (see Figure 12) of " second " font, clamp groove 21052 is had in the long section main body of clamp body 2105, after clamp groove 21052, stomidium cross section is greater than front aperture cross section, T-shaped pressing plate 2103 (see Figure 11) is installed with on the rear port edge of clamp groove 21052, spring 2102 is provided with in clamp groove 21052, spring 2102 rear end and T-shaped pressing plate 2103 inner termination apical grafting, spring 2102 front end and adjustable cramp 2101 inner face apical grafting; Adjustable cramp 2101 external end head cross section is double step profile (see Figure 10), under the expansion force effect of spring 2102, adjustable cramp 2101 relies on step be stuck in the front aperture of fixing pincers 2105 and stretch out, and forms adjustable cramp with the jaw 21053 of fixing pincers 2105.Adjustable cramp 2101 front end is arc-shaped jaw, for the jaw that gripping object is used, can be pressed into insert time automatic open, after such insertion Automatic-clamping, up extract and auto lock, realize the switching to quick plug-in contact system fixture.

With reference to Figure 10, the structure of adjustable cramp 2101 is, main body is clamp rear end 21013, and front portion, clamp rear end 21013 is provided with step binding clip 21012, and the front end of step binding clip 21012 is set to circular arc jaws 21011.

With reference to Figure 11, the structure of T-shaped pressing plate 2103 is, main body is end plate 21031, and end plate 21,031 four jiaos is provided with bolt hole 2 21032, and end plate 21031 front end face is fixed with front jacking block 21033, and front jacking block 21033 laterally has at least one bolt hole 3 21034.

With reference to Figure 12, the structure of clamp body 2105 is, rear end screwed hole 21051 is respectively arranged with in the rear end face corner of the clamp body 2105 of " second " font, clamp groove 21052 is provided with in the long section main body of clamp body 2105, after clamp groove 21052, stomidium cross section is greater than front aperture cross section, low section of " second " font is called lower convex platform 21054, lower convex platform 21054 outer end protrudes upward and is called projection 21055, and the groove between projection 21055 and the long section main body of clamp body 2105 is called jaw 21053.

Overall structure of the present invention is, utilize the equipment described in above-mentioned Fig. 2-Figure 12, feed mechanism, fixture 100 and welding mechanism is divided into according to function, work top 39 is fixedly installed rectilinear orbit 23, rectilinear orbit 23 is provided with fixture 100, welding mechanism is vertically disposed with at the inner segment of rectilinear orbit 23

1) with reference to Figure 14, Figure 15, the structure of feed mechanism is, comprise feeding cylinder 22, feeding cylinder 22 is fixed on work top 39, and feeding cylinder 22 is arranged on the extended line of the outer section of rectilinear orbit 23, feeding cylinder 22 is in transmission connection with plug fixator 21, and for clamping plug-in handle 19 in the groove 2104 of plug fixator 21, groove 2104 upper surface is crimped with L-type fixed head 20;

2) with reference to Figure 14, Figure 15, fixture 100 is for clamping contact system, and fixture 100 is arranged in and rectilinear orbit 23 moves left and right and realizes fast insert-pull by plug-in handle 19 and feed mechanism,

Fixture 100 comprises base plate 18, base plate 18 is slidably arranged on rectilinear orbit 23, base plate 18 is connected with plug-in handle 19 other end, and before and after base plate 18, both sides are installed with one group of Z-type gripper shoe 17 respectively, is jointly provided with gripper shoe 9 two groups of Z-type gripper shoe 17 upper surfaces; The below of gripper shoe 9 is connected with bottom electrode 10, before gripper shoe 9, end slot 93, medial launder 92 and rear end slot 91 expose bottom electrode 10, there are three places to be all numbering 10 in Figure 15, refer to the part that the rear end slot 91 of bottom electrode 10 in gripper shoe 9, medial launder 92 and front end slot 93 can be seen; Two through holes 3 99 of gripper shoe 9 front end are respectively by counterbore 2402 grafting with busbar 24 of pin 1 and pin 2 15; The screwed hole 5 97 of gripper shoe 9 both sides is installed with back-up block 4, screw is adopted to be connected by the screwed hole 1 on back-up block 4, each back-up block 4 utilizes screwed hole 2 43 and screw 3 16 are fixed with left L-type plate 2 and right L-type plate 3 respectively, left L-type plate 2 and right L-type plate 3 are upwards fixed with a handle 1 respectively; Arc groove 42 bearing pin that moving contact passes on positioning supports contact system on each back-up block 4, just right with conductive plate (terminal plate or bus); And left L-type part 5 and right L-type part 6 is furnished with rearward in the middle of gripper shoe 9, left L-type part 5 and the active contact one 51 of right L-type part 6 on supporting and location processing object contact system, main arc contact 52, active contact 2 53, be shown in Figure 16;

Left L-type part 5 and the symmetrical installation of right L-type part 6, the gauge of the main arc contact 52 in the middle of contact system is as interval 7, the minor face deep trouth of left L-type part 5 and right L-type part 6 is respectively used to install initiatively contact 1 and initiatively contact 2 53, and fixed by screw with the via hole 94 in gripper shoe 9 by the through hole 1 on left L-type part 5 and the right long limit of L-type part 6, adapt to the location of multiple moving contact group;

Fixture 100 is placed on rectilinear orbit 23 by artificial grasping handle 1, the plug-in handle 19 be connected with fixture 100 is pressed in the moving jaw plugging fixator 21, plug fixator 21 will be equipped with the fixture of large capcity breaker contact system by feeding cylinder 22, sends into the welding mechanism corresponding position of inverted "Ding"-shape layout along rectilinear orbit 23.

Figure 14 is the partial enlarged drawing in Figure 13, and Figure 15 is look forward after (Figure 14, Figure 13) (with gripper shoe 9 front and back end for benchmark), and Figure 15 is the three-dimensional structure diagram of A to fixture 100 and feed mechanism of Figure 14; The conductive plate 54 of Figure 14 and the busbar 24 in Figure 15 are that different contact versions is expressed.

3) structure of welding mechanism is, comprises bottom electrode 10, top electrode 29, conductive supporting electrode 1 and conductive supporting electrode 2 33, and wherein bottom electrode 10 is adopted by the via hole 94 in screwed hole 7 101 and gripper shoe 9 and is screwed; Conductive supporting electrode 1 is fixed on the fuselage of Power Support transformer, conductive supporting electrode 2 33 is fixing on the table, conductive supporting electrode 1 and conductive supporting electrode 2 33 relative spacing are arranged, conductive supporting electrode 2 33 is positioned at below rectilinear orbit 23, conductive supporting electrode 2 33 is in transmission connection by fixed head 2 34 and cylinder 1, and cylinder 1 controls to be communicated with breather pipe 35; Conductive supporting electrode 1 is fixedly connected with electrode tip holder 30,

Top electrode 29 (top electrode 29 is an entirety) is provided with above conductive supporting electrode 1 and conductive supporting electrode 2 33, top electrode 29 is provided with exhaust duct 25 on one side, exhaust duct 25 mouth of pipe is just arranged welding position, top electrode 29 is upwards fixedly connected with fixed head 1, fixed head 1 and guide rail bracket 28 are slidably connected, guide rail bracket 28 end face is provided with limited block 26, guide rail bracket 28 is deviate from for preventing fixed head 1, guide rail bracket 28 side is provided with pin, and the piston rod end of this pin and cylinder 2 36 is in transmission connection, cylinder 2 36 is for controlling the press perpendicular position of top electrode 29, the solder side of top electrode 29 crimps face-to-face with the upper back-up block 102 of bottom electrode 10 downwards fits (face contacts) afterwards,

Bottom electrode 10 is arranged on fixture 100 and can slides along conductive supporting electrode 1 and conductive supporting electrode 2 33 coupling direction (line of demarcation), the conductive plate 54 (bus or contact plate) of contact system and the through hole 3 99 in gripper shoe 9 are adopted above-mentioned two pins (pin 1 and pin 2 15) contact and locate, be namely pressed on busbar 24; Cylinder 1 drives conductive supporting electrode 2 33 to support rear support block 104 and the front support block 107 of bottom electrode 10 together near conductive supporting electrode 1, top electrode 29 is pushed descending at pressing mechanism effect lower cylinder 2 36, implemented to compress to be energized with flexible connection 50 by the conductive plate 54 (terminal plate or bus) of the contact system on fixture 100 and weld, the lower support block 106 of bottom electrode 10 and the solder side of upper back-up block 102 play support electric action.

When above-mentioned conductive supporting electrode 1 works with conductive supporting electrode 2 33, level is to pressure, and bottom electrode 10 is fixed in fixture 100 motionless, and the position that top electrode 29 Relative vertical presses down energising welding is inverted "Ding"-shape, therefore claims the welding mechanism of inverted "Ding"-shape.

The course of work of the present invention is:

Describe for the contact system welding process of the moving contact shown in Figure 16 and flexible connection below,

First, the busbar 24 corresponding with Figure 16 is loaded in the gripper shoe 9 in fixture 100 by pin 1 and pin 2 15, then each bar moving contact of welding object and the assembly of flexible connection are pressed in multiple inclined-planes U-type groove of busbar 24, the moving contact of welding object other end is pierced in cylinder, cylinder is placed in the arc groove 42 on two edge supporting pads 4, main arc contact 52 is put into interval 7; Active contact 1 and active contact 2 53 symmetry are placed on both sides, interval 7, and correspondence snaps in the deep trouth of left L-type part 5 and right L-type part 6;

Then, with portable handle 1, fixture 100 and bottom electrode 10 are placed on rectilinear orbit 23, then plug-in handle 19 is pressed in the groove 2104 of plug fixator 21, adjustable cramp 2101 stretches out and relies on step card to be pressed in the front end of fixing pincers 2105 under spring 2102 promotes, clamp body 2105 is connected with feeding cylinder 22, after starting device, feeding cylinder 22 promotes fixture 100 and bottom electrode 10, and the moving contact assembled and flexible connection and busbar 50 (contact plate), deliver between conductive supporting electrode 1 below top electrode 29 and conductive supporting electrode 2 33, cylinder 1 outside source of welding current secondary loop drives outer conductive supporting electrode 1 to move, pushing bottom electrode 10 withstands on conductive supporting electrode 2 33,

Finally, top electrode 29 is depressed into busbar 54 (contact plate) and flexible connection 50 welds, in welding process, exhaust duct 25 is opened and is discharged by weld fumes, after welding energising cooling maintenance realizes welding fabrication, top electrode 29 and conduction conductive supporting electrode 1 and conductive supporting electrode 2 33 unclamp reset, feeding cylinder 22 resets and drives the contact system product of fixture 100 and welding fabrication to get back to original position, and a circulation terminates.

By that analogy, extract plug fixator 21, then the another set of fixture 100 assembled at weld period and bottom electrode 10 and the moving contact assembled and flexible connection and busbar (contact plate) being pressed into fast puts in rectilinear orbit 23, then plug-in handle 19 is pressed in plug fixator 21, starting device, repeat this working cycles (having welded contact system product before working cycles finally draws off), realize second group of moving contact welding, the batch realized semi-automation welding.

Above content is in conjunction with concrete preferred embodiment further description made for the present invention, can not assert that specific embodiment of the invention is confined to these explanations.For general technical staff of the technical field of the invention, without departing from the inventive concept of the premise, some simple deduction or replace can also be made, all should be considered as belonging to protection scope of the present invention.

Claims

1. the processing unit (plant) of a large capcity breaker contact system, it is characterized in that: be divided into feed mechanism, fixture (100) and welding mechanism, work top (39) is fixedly installed rectilinear orbit (23), rectilinear orbit (23) is provided with fixture (100), is vertically disposed with welding mechanism at the inner segment of rectilinear orbit (23).

2. the processing unit (plant) of large capcity breaker contact system according to claim 1, is characterized in that: the structure of described feed mechanism is,

Comprise feeding cylinder (22), feeding cylinder (22) is fixed on work top (39), and feeding cylinder (22) is arranged on the extended line of rectilinear orbit (23) outer section, feeding cylinder (22) is in transmission connection with plug fixator (21), for clamping plug-in handle (19) in the groove (2104) of plug fixator (21), groove (2104) upper surface is crimped with L-type fixed head (20).

3. the processing unit (plant) of large capcity breaker contact system according to claim 2, is characterized in that: the structure of described plug fixator (21) is,

Comprise clamp body (2105), clamp groove (21052) is had in the long section main body of clamp body (2105), T-shaped pressing plate (2103) is installed with on the rear port edge of clamp groove (21052), spring (2102) is provided with in clamp groove (21052), spring (2102) rear end and T-shaped pressing plate (2103) inner termination apical grafting, spring (2102) front end and adjustable cramp (2101) inner face apical grafting; Adjustable cramp (2101) external end head cross section is double step profile, under the expansion force effect of spring (2102), adjustable cramp (2101) relies on step be stuck in the front aperture of fixing pincers (2105) and stretch out, and forms adjustable cramp with the jaw (21053) of fixing pincers (2105).

4. the processing unit (plant) of large capcity breaker contact system according to claim 2, is characterized in that: the structure of described fixture (100) is,

Comprise base plate (18), base plate (18) is slidably arranged on rectilinear orbit (23), base plate (18) is connected with plug-in handle (19) other end, before and after base plate (18), both sides are installed with one group of Z-type gripper shoe (17) respectively, are jointly provided with gripper shoe (9) two groups of Z-type gripper shoe (17) upper surfaces; The below of gripper shoe (9) is connected with bottom electrode (10); Counterbore (2402) grafting of pin one (14) and pin two (15) and busbar (24) is passed through in gripper shoe (9) front end; Gripper shoe (9) both sides are installed with back-up block (4), each back-up block (4) is fixed with respectively left L-type plate (2) and right L-type plate (3), left L-type plate (2) and right L-type plate (3) are upwards fixed with a handle (1) respectively; Arc groove (42) bearing pin that moving contact passes on positioning supports contact system on each back-up block (4); Left L-type part (5) and right L-type part (6) is furnished with rearward in the middle of gripper shoe (9).

5. the processing unit (plant) of large capcity breaker contact system according to claim 4, is characterized in that: the structure of described gripper shoe (9) is,

Boss (90) is provided with in the middle part of gripper shoe (9) body front end, the front end face of boss (90) is provided with screwed hole six (98), the upper surface of boss (90) is provided with through hole three (99), the step surface on boss (90) both sides is respectively arranged with screwed hole five (97); Penetrating front end slot (93), medial launder (92) and rear end slot (91) is had before and after gripper shoe (9) main body, be respectively arranged with multiple through hole two (95) on the both sides of front end slot (93), medial launder (92) and rear end slot (91) by gripper shoe (9) edge, be respectively arranged with screwed hole four (96) in front end slot (93) two side; Via hole (94) is provided with in the middle of medial launder (92) with rear end slot (91) connecting plate.

6. the processing unit (plant) of large capcity breaker contact system according to claim 4, it is characterized in that: described left L-type part (5) and right L-type part (6) symmetrical installation, the gauge of the main arc contact (52) in the middle of contact system is as interval (7), the minor face deep trouth of left L-type part (5) and right L-type part (6) is respectively used to install initiatively contact one (51) and initiatively contact two (53), and fixed by screw with the via hole (94) in gripper shoe (9) by the through hole one (8) on left L-type part (5) and right L-type part (6) long limit.

7. the processing unit (plant) of large capcity breaker contact system according to claim 4, is characterized in that: the structure of described welding mechanism is,

Comprise bottom electrode (10), top electrode (29), conductive supporting electrode one (32) and conductive supporting electrode two (33), wherein bottom electrode (10) is connected and fixed by screwed hole seven (101) and via hole (94) screw in gripper shoe (9); Conductive supporting electrode one (32) and conductive supporting electrode two (33) relative spacing are arranged, conductive supporting electrode two (33) is positioned at rectilinear orbit (23) below, conductive supporting electrode two (33) and cylinder one (31) are in transmission connection, conductive supporting electrode one (32) is fixedly connected with electrode tip holder (30)

Conductive supporting electrode one (32) and conductive supporting electrode two (33) top are provided with top electrode (29), top electrode (29) is provided with exhaust duct (25) on one side, top electrode (29) is upwards fixedly connected with fixed head one (27), fixed head one (27) and guide rail bracket (28) are slidably connected, guide rail bracket (28) side is provided with pin, and the piston rod end of this pin and cylinder two (36) is in transmission connection, the solder side of top electrode (29) crimps rear laminating downwards with the upper back-up block (102) of bottom electrode (10).

8. the processing unit (plant) of large capcity breaker contact system according to claim 7, is characterized in that: the structure of described bottom electrode (10) is,

Comprise back-up block (102), lower support block (106), rear support block (104) and front support block (107), front support block (107) upper surface is provided with screwed hole seven (101), the rear surface of upper back-up block (102) has screwed hole eight (103), the upper surface of upper back-up block (102) has screwed hole ten (108), laterally has screwed hole nine (105) in the centre of bottom electrode (10); Front support block (107) upper surface is horizontal plane.

9. the processing unit (plant) of large capcity breaker contact system according to claim 7, is characterized in that: described busbar (24) structure is,

Have equidistant multiple inclined-planes U-type groove (2405) in rectangular slab (2404) front end, have at least one fixing counterbore (2402) at rectangular slab (2404) Rear body;

This rectangular slab (2404) or be transformed to semi arch plate (2406), or round rectangle plate (2407).

10. the processing unit (plant) of large capcity breaker contact system according to claim 7, is characterized in that: inclined-plane and rectangular slab (2404) the upper surface angle on described each inclined-plane U-type groove (2405) are 15 °-20 °.