CN1035201A - Socket type lamp holder dowel fixes method and apparatus - Google Patents

Abstract

The invention belongs to the method and the special equipment of fixing pin when producing the socket type lamp holder.Can be welded to the lamp holder pin on the shell of lamp base continuously and automatically.Earlier wire is cut into the filament cutting mechanism of pin and the manipulator of clamping pin before welding is housed on the equipment, its electrode and pin contact position are an electrode wheel.Adopt Hall switch etc. in its electric control system.The present invention has fundamentally solved the quality problems of relevant lamp holder outward appearance and pin bonding strength, has reduced consumption of electrode, and power saving, economizes wire, has improved labor productivity, and has improved the intuitive reliability and the automaticity of universe point welding machine.

Description

Socket type lamp holder dowel fixes method and apparatus

The present invention relates to a kind of fixing method and apparatus of lamp holder pin when producing the socket type lamp holder.

For a long time, both at home and abroad the lamp holder manufacturing industry adopts clinching method usually to being connected of socket type lamp holder pin and shell of lamp base.Socket type lamp holder ubiquity pin with the production of homemade lamp holder pin riveting machine becomes flexible easily, comes off, and presentation quality is poor, the problem that rate of finished products is low.In order to solve this difficult problem, surplus in the of ten in the period of, many people imagine with the welding pin method and replace the riveted joint pin method, more domestic lamp holder factories successively repeatedly carried out experiment, even manufactured experimently model machine, all succeedd.By to both at home and abroad for over ten years patent and the retrieval of non-patent literature, external pin and the welding method of shell of lamp base and the report of equipment thereof that closes the socket type lamp holder that also find no at present.China is since nineteen eighty-three, and the socket type lamp holder manufacturing equipment of the Hungary that has introduced, Austria (Britain, the Japan that comprise negotiation once) also is the traditional approach that adopts the riveted joint pin entirely.Domestic lamp holder manufacturing industry is about the experiment of welding pin method and the reason of model machine failure: (1) has adopted the long filament welding, the technology that postwelding cuts off again, it is not high that this technology exists multiple operation, single station, work efficiency to carry, and welding pressure is in problems such as runaway condition.(2) can not solve at super thickness than under the condition, guarantee the problem of spot welding quality stability.(3) electrode directly touches with the socket pin nail joint in welding process, Yin Gaowen scaling loss and galvano-cautery influence, and consumption of electrode is too big, not only changes to bother but also the product cost height.In addition, also there are many defectives in the universe point welding machine in the prior art, does not have quality monitoring device, and intuitive is poor, if be used for special welding equipment, its automatization level and functional reliability all do not reach requirement.

The problem that exists in the fixing pin work during at above-mentioned production socket type lamp holder the objective of the invention is to, and provides a kind of and can be continuously and automatically socket pin tack welding be connected on method and apparatus on the shell of lamp base; When surpassing general permission boundary, effectively improve the quality stability of long-time continuous welding at the actual (real) thickness of soldered object; In continuous welding is produced, effectively reduce the consumption of electrode material; Make with short-cut method the pin ， And that meets welding requirements to reliable clamping; The intuitive of raising equipment, automatization level and reliability.

Now design of the present invention and technical solution thereof are described below:

A kind of method of fixing pin when producing the socket type lamp holder at first is provided, it is characterized in that adopting welding manner to finish, its process route is for being cut to pin with long wire earlier, carry out serially connected two-sided two point weldering with housing then, wire feed, chopping and welding synchronous operation, pin is now cut existing weldering, utilizes the multiple-grooved Geneva drive to make the dress shell, weld, unload each operation of shell and carry out simultaneously on a plurality of stations.

Next provide a kind of on the socket type lamp holder special equipment of fixing pin method.This equipment comprises: motor, and the secondary commutation spot welding power, machine driven system, based on the electric control system of KD-7 remodeling controller, spot-wedling electrode, the shell of lamp base auto arrangement, upper and lower materials devices etc. is characterized in that:

1, provide a kind of station dial mechanism that does intermittent movement, uniform in the station dial mechanism a plurality of conductive cushion blocks are installed, conductive cushion block is made with the tammite nickel alloy material.Intermittent movement is realized by the multiple-grooved Geneva drive.

2, provide a kind of filament cutting mechanism that before welding, wire is cut into pin, wire feed, chopping and welding synchronous operation, pin is now cut existing usefulness, guaranteed that front/rear end has enough fresh not oxidation and cuts off the surface, thereby the resistance of each contact resistance is controlled in the minimum error range, under the constant condition of spot welding circuitous resistance, welding current will be stablized constant.Filament cutting mechanism is made up of push rod, rocking arm, moving cutting tool, fixed cutting tool, guide bracket and spring.Utilize the relative displacement of moving cutting tool and fixed cutting tool, wire is cut into pin.In the wire feeder, on three steel ball pressure wire-feed motor, increased a packing ring that can prevent that steel ball from deviating from.

3, provide a kind of and can finish " clamping-send to-unclamp-retreat " clamping pin of reciprocating action nail manipulator continuously on two vertical direction, clamping pin nail manipulator is by a pair of arm, the pair of finger sheet, front-slider, wedge block, pin, miniature bearing, arm rear fender and extension spring are formed.In the pair of finger sheet, a slice is made with the tammite nickel alloy material, and another sheet is made with the chrome zirconium copper alloy material.

4, provide a kind of bilaterally symmetric electrode assemblies, by electrode body, electrode wheel, extension spring, rocking bar, compositions such as roller, electrode wheel rely on electrode axis to be installed on the electrode body, electrode wheel can rotate in continuously frequent welding process, effectively improves the radiating condition of electrode, improves electrode life.

5, in machine driven system, the power that motor is exported behind double reduction, drives thumb wheel, eccentric shaft, and camshaft unloads shell manipulator axle and rotates synchronously.The guide pillar cam is housed on the camshaft, the electrode cam, chopping cam, manipulator rocker cam and hypodontia gear, thereby can control wire feed, chopping, dress shell exactly, unload shell, the time sequencing of electrode and clamping manipulator action, the automatic synchronization that satisfies each inter process of welding cooperates.

6, in electric control system, (1) adopts the transducer of Hall switch as mechanical location, guaranteed that electric control system and mechanical part strict synchronism ， And have eliminated the dither noise of contact switch and electric spark etc. and caused weakness, improved the reliability of action.(2) increased by lamp source; photoelectric tube; transistor switching circuit; the autostop unit that time-delay relay etc. are formed; when three " ghost " phenomenons of continuous appearance; the signal that photoelectric tube receives changes, main motor is quit work automatically, has avoided " empty weldering " and the loss and the waste that cause.(3) increased linear Integrated operational amplifier and output amplifier tube, has cooperated with trigger impulse synchronous circuit in the existing KD-7 remodeling controller, stable triggering phase-shift pulse makes the more stable ， And of welding current have overload protective function.(4) adopted 5 electronic counters, made welding machine have the automatic tally function of product.

Be further described in conjunction with the accompanying drawings more below

The overall schematic of Fig. 1 special equipment of the present invention

Wherein: " 1 " gear " 2 " sprocket wheel " 3 " sprocket wheel " 4 " thumb wheel " 5 " eccentric shaft " 6 " camshaft " 7 " unloads the polygonal rotating disk of shell manipulator axle " 8 " multiple-grooved Geneva drive " 9 " " 10 " feed mechanism " 11 " and unloads shell manipulator " 12 " filament cutting mechanism " 13 " clamping pin nail manipulator " 14 " electrode " 15 " rocking bar " 16 " rocking bar " 17 " rocking bar " 18 " wire feeder " 19 " hypodontia gear indexing mechanism " 20 " bevel gear " 21 " Hall switch " 22 " small magnet " 23 " conductive cushion block 64) the shell of lamp base automatic arranging device

After the power that motor D is exported slows down by belt pulley and cycloidal-pin wheel decelerator, by gear " 1 ", sprocket wheel " 2 ", " 3 ", drive thumb wheel " 4 ", eccentric shaft " 5 ", camshaft " 6 " and unload the rotation synchronously of shell manipulator axle " 7 " do, thumb wheel " 4 " is stirred the multiple-grooved Geneva drive, and " 8 ” And make polygonal rotating disk " 9 " do intermittent movement, work to carry shell of lamp base.When polygonal rotating disk " 9 " when remaining static, eccentric shaft " 5 " drives shift fork slide block type feed mechanism " 10 " shell of lamp base to be welded is installed on the corresponding conductive cushion block " 23 ", at this moment the shell of lamp base of having delivered to welding post by polygonal rotating disk is just finished the pin welding process, meanwhile, unloading shell manipulator axle " 7 " drives and to unload shell manipulator " 11 " and will unload the shell of lamp base that has welded pin on the shell station and pull up.Filament cutting mechanism rocking arm " 43 " rotation, clamping pin nail manipulator " 13 " move horizontally, electrode " 14 " moves both vertically and all realizes that by the upward corresponding cam promotion of camshaft " 6 " rocking bar " 15 ", " 16 ", " 17 " wire feeder " 18 " also is subjected to the control of camshaft " 6 " by hypodontia gear indexing mechanism " 19 " and bevel gear " 20 ".Appropriate design cam contour and adjust phase relation between each rotation axis when installing just can accurately be controlled wire feed, chopping, dress shell, unloads shell, the time sequencing of electrode and clamping manipulator action, satisfies each inter process automatic synchronization cooperation.

The front view of Fig. 2 electrode assemblies structure

Wherein: the extension spring of " 24 " electrode wheel " 25 " electrode axis " 26 " electrode body " 27 " finger sheet " 28 " pin " 29 " shell of lamp base " 17 " rocking bar " 31 " spring " 32 " crescent-shaped slot " 33 " roller " 34 "

Electrode wheel " 24 " relies on electrode axis " 25 " to be connected on the electrode body " 26 ", after pointing sheet " 27 " clamping pin " 28 " and shell of lamp base " 29 " contact, rocking bar " 17 " overcomes the tension force of spring " 31 " the bilateral electrode is depressed simultaneously, electrode body " 26 " is subjected to the restriction of roller " 33 " by crescent-shaped slot " 32 " thereon, one side moves down, one side is subjected to the effect of extension spring " 34 ", close up to the centre, because the influence of frictional force between electrode wheel " 24 " and finger sheet " 27 " back plane, electrode wheel " 24 " is promptly gone up in electrode axis " 25 " and is rotated, when electrode is whole move down into appropriate location energising welding after, the pressure of rocking bar " 17 " discharges, the bilateral electrode is Shanged Yi And separately again under the effect of spring " 31 ".In another time weld cycle, electrode wheel " 24 " can turn an angle again when moving down once more, and then electrode wheel " 24 " is not fixed with the contact point of pin " 28 ", but constantly shifts one's position, improve the radiating condition of electrode, thereby increased the useful life of electrode.

Fig. 3 clamping pin nail robot manipulator structure front view

Fig. 4 clamping pin nail robot manipulator structure vertical view

Fig. 5 clamping pin nail robot manipulator structure left view

Wherein: " 35 " arm " 36 " front-slider " 37 " pin " 38 " miniature bearing " 39 " extension spring " 40 " wedge block " 42 " damping element " 28 " pin " 44 " arm rear fender

Two arms " 35 " of manipulator are installed on the same front-slider " 36 ", each arm all can freely rotate around pin " 37 " separately, each symmetry of the back segment of two arms is installed a miniature bearing " 38 ", rely on extension spring " 39 " that the bearing of two arms is pressed on the wedge shape inclined-plane of wedge block " 40 ", wedge block " 40 " is installed in the same dovetail groove with front-slider " 36 ", all can be free to slide front and back, but a damping element " 42 " is arranged at front-slider " 36 " bottom, when making wedge block " 40 " reach, front-slider " 36 " wouldn't move, arm " 35 " is under the effect on wedge shape inclined-plane, earlier separately around pin " 37 " rotation, back segment opens, leading portion closes up, finger sheet " 27 " is clamped pin " 28 ", when clamping force acquires a certain degree, arm no longer rotates, concerning manipulator, become a pair of internal force, when wedge block " 40 " continues reach, then arm " 35 " drive front-slider " 36 " is together sent to, till delivering to pin " 28 " and shell of lamp base " 29 " contacting.After welding is finished, wedge block " 40 " retreats under the effect of cam rocker arm mechanism in advance, has certain idle stroke because of between itself and arm rear fender " 44 ", so the time front-slider " 36 " wouldn't retreat, arm " 35 " is under the effect of extension spring " 39 ", miniature bearing " 38 " still is pressed on the wedge shape inclined-plane, form arm " 35 " reverse rotation once more, back segment closes up, and leading portion opens, and point sheet and unclamp earlier this moment, after crossing idle stroke, wedge block " 40 " contact arm rear fender " 44 " promptly drives arm " 35 " and moves behind front-slider " 36 ", so finishes a duty cycle.Because when each wedge block " 40 " moves forward, have only after finger sheet " 27 " clamps pin " 28 ", front-slider " 36 " could move forward, so manipulator is firm to the clamping of pin, and And and the scaling loss that finger sheet " 27 " causes because of welding high temperature is had the effect of automatic compensation.

Fig. 6 filament cutting mechanism front view

Fig. 7 filament cutting mechanism left view

Wherein: " 30 " chopping cam " 41 " push rod " 43 " rocking arm " 45 " moving cutting tool " 46 " fixed cutting tool " 47 " guide bracket " 48 " extension spring " 49 " small sircle hole

Under the effect of chopping cam " 30 ", push rod " 41 " Hua Dong And in guide bracket " 47 " pushes rocking arm " 43 "; rocking arm " 43 " driving moving cutting tool " 45 " rotates to an angle, to penetrate fixed cutting tool " 46 " and moving cutting tool " 45 " in advance and go up the interior wire cut-out of small sircle hole " 49 ", when chopping cam " 30 " when forwarding minor radius to, under the effect of extension spring " 48 "; rocking arm " 43 " reset, cut pin, be stored in the small sircle hole " 49 " of moving cutting tool, use during for next weld cycle.Have several small sircle holes on the moving cutting tool, make small sircle hole after wearing and tearing, other small sircle holes of replaceable use are to improve the useful life of moving cutting tool " 45 ".

Fig. 8 wire-feed motor profile

Wherein: " 50 " packing ring " 51 " taper sheath " 52 " steel ball " 53 " small eccentricity axle " 54 " slip cap

The feeding device end view of Fig. 9 shell of lamp base

Wherein: the polygonal rotating disk of " 55 " shift fork " 56 " spring " 57 " slide block " 58 " receiver " 9 " " 23 " conductive cushion block " 5 " eccentric shaft

The feeding device dorsal view of Figure 10 shell of lamp base

Figure 11 unloads shell manipulator end view

Wherein: " 11 " are unloaded shell manipulator " 59 " sunk screw " 60 " single-tooth gear " 61 " rack slide " 62 " spring " 7 " and are unloaded the polygonal rotating disk of shell manipulator axle " 9 " " 23 " conductive pad #160; " 29 " shell of lamp base (having welded pin) " 63 " track base

After the advanced development success of the present invention, through industrial experiment, the complete machine performance has obtained comprehensive test ， And every electric index has been measured, and product has carried out quality inspection by GB, and its result exemplifies as follows:

1, technical performance reaches or is better than the design specifications set quota

The set quota actual value

Welding times 60 times/minute 67.5 times/minute

Rate of finished products is more than 90% 93%

Electrode wheel, the per tour of finger sheet replacing number of times are changed a 2-3 class and are changed once

2, the more homemade lamp holder pin of the product quality of this machine riveting machine is significantly improved

The homemade lamp holder pin of the present invention riveting machine

Lamp holder presentation quality pin is straight, and smooth pin is thick, and is easily crooked

Housing does not have the distortion housing and all is out of shape

Electroplate back pin non-corrosive and easily produce iron mold

The junction

The pin bonding strength has fundamentally been eliminated loosening easily loosening

(GB regulation: 7kg presses shear test to surpass 14 and presses shear test, 10kg

Press shear test, pin kg and reached at the time defective item that do not fall accounts for 20%

Nail should be indeformable, not more than 90%

Come off)

3, otherwise comparison

The homemade lamp holder pin of the present invention riveting machine is introduced Hungary's equipment

Heaviness in light weight is light

Volume is little littler greatly

Have or not automatic counting to have or not nothing

The simple cramped construction of complete machine structure is complicated simple compact

Easily adjust difficult the adjustment

Working method welding riveted joint riveted joint

Ten thousand of ten thousand 3.4kg/ of ten thousand 2.8kg/ of iron wire consumption＜1.4kg/

Transmission power 0.79KW 1.7-2.4KW 1KW

As a whole, every index of the present invention all is better than prior art.

Method and apparatus of the present invention has fundamentally solved the pin Welding Problems of producing the socket type lamp holder, has improved the quality stability of long-time continuous welding effectively, has reduced the consumption of electrode material; Compare with the lead-in light head apparatus, technology advanced person, the complete machine cost is low, and the iron wire consumption is low more than one times; Compare with the universe point welding machine, improved the intuitive of equipment, reliability and automatization level.In addition,, generally apply, can increase profits tax every year more than 1,000,000 yuan as if domestic according to the economic benefit estimation.

Claims (7)

1, during a kind of production socket type lamp holder, the method of fixing pin, it is characterized in that adopting welding manner to finish, its process route is for being cut to pin with long wire earlier, carry out serially connected two-sided two point weldering with housing then, wire feed, chopping and welding synchronous operation, pin is now cut existing weldering, utilizes the multiple-grooved Geneva drive to make the dress shell, weld, unload each operation of shell and carry out simultaneously on a plurality of stations.

2, a kind of special equipment of fixing pin method during according to the production socket type lamp holder described in the claim 1 has:

(1), the secondary commutation spot welding power, motor;

(2), machine driven system;

(3), electric control system;

(4), spot-wedling electrode;

(5), the shell of lamp base auto arrangement, upper and lower materials device;

(6), wire feeder;

It is characterized in that:

(21) guide pillar cam, electrode cam, chopping cam, manipulator rocker cam and hypodontia gear are housed on the camshaft in the machine driven system;

(31) have welding current indication, overload protection, product counting and accident autostop unit in the electric control system;

(41) spot-wedling electrode is bilaterally symmetric electrode assemblies, is made of electrode body, electrode wheel, extension spring, roller, rocking bar, and electrode wheel relies on electrode axis to be installed on the electrode body;

(51) feeding device of shell of lamp base is a shift fork slide block type mechanism, and blanking device is one to unload the shell manipulator by what rack-and-pinion drove;

(61) in the wire feeder, on three steel ball pressure wire-feed motor, increased a packing ring that can prevent that steel ball from deviating from;

(7), a kind of station dial mechanism that does intermittent movement is provided, uniform in the station dial mechanism a plurality of conductive cushion blocks are installed, conductive cushion block is made with the tammite nickel alloy material;

(8), provide a kind of filament cutting mechanism that before welding, wire is cut into pin;

(9), a kind of manipulator of clamping pin is provided.

The required special equipment of fixing pin method during 3, according to the production socket type lamp holder described in the claim 2 is characterized in that:

(411) link to each other with a pair of extension spring between the bilateral symmetry electrode body of spot-wedling electrode assembly;

(412) the pair of electrodes body inboard of spot-wedling electrode assembly has crescent-shaped slot, and the roller that the hard smooth insulating material of bottom land and side and usefulness is made contacts.

The required special equipment of fixing pin method during 4, according to the production socket type lamp holder described in the claim 2 is characterized in that:

(71) intermittent movement of station dial mechanism is realized by the multiple-grooved Geneva drive.

The required special equipment of fixing pin method during 5, according to the production socket type lamp holder described in the claim 2 is characterized in that:

(81) filament cutting mechanism is made of push rod, rocking arm, fixed cutting tool, moving cutting tool, guide bracket, extension spring;

(82) relative displacement of moving cutting tool and fixed cutting tool relies on chopping cam, push rod, rocking arm to carry out;

(821) have several on the moving cutting tool and penetrate small sircle hole wiry;

(83) filament cutting mechanism symmetric arrangement.

6, cover uncut jade good fortune  according to the exhausted pool of the production socket type lamp holder  green pepper ㄋ  ancient piece of jade, round, flat and with a hole in its centre mire ㄓ described in the claim 2 and rinse the drooping plan of an ancient small-mouthed wine vessel tomb

(91) clamping pin is followed closely manipulator by a pair of arm, the pair of finger sheet, and front-slider, wedge block, pin, miniature bearing, the arm rear fender, extension spring constitutes.

The required special equipment of fixing pin method during 7, according to the production socket type lamp holder described in the claim 6 is characterized in that:

(911) a pair of arm symmetry of clamping pin nail manipulator is installed on two pins of front-slider; And can freely rotate around pin separately, each symmetry of two arm back segments is installed a miniature bearing, rely on extension spring that the miniature bearing of two arms is pressed on the wedge shape inclined-plane of wedge block, the wedge shape inclined-plane is beloid;

(912) wedge block and the front-slider of clamping pin nail manipulator are installed in the same dovetail groove, and a damping element is arranged at the front-slider bottom;

(913) wedge block of clamping pin nail manipulator is connected with cam rocker arm mechanism, and and the arm rear fender between one section idle stroke is arranged;

(914) clamping pin nailing machine tool hand finger sheet thickness is slightly little than lamp holder pin length, and in the pair of finger sheet, a slice is made with the tammite nickel alloy material, and another sheet is made with the chrome zirconium copper alloy material;

(915) clamping manipulator is arranged in the station dial bilateral symmetry.

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