DD144839A5 - DEVICE FOR WELDING LOET BAND SECTIONS WITH THE LIGHT BULB CONTACT RING - Google Patents

Description

Berlin, 22.10.1979 55 816/17

Apparatus for welding solder band sections to the incandescent lamp contour ring

Application field of the invention

The invention relates to an automatic device for welding Lötbandabschnitten with the contact ring of an incandescent lamp, in particular a halogen incandescent lamp, in order to prepare for soldering the ring with the base of the incandescent lamp.

Characteristic risk of the known technical solutions

A known device for manual welding of Lötbandabschnitten with the boards of the contact ring of a halogen incandescent lamp is equipped with vertSal standing welding electrodes, of which the lower electrode is immovable and the upper electrode is actuated by means of a foot lever. In the vicinity of the electrodes, a clamping device for clamping the ring is arranged, which is provided with a two positions each 180 ° to be engaged rotary clamping device. The gripping device has two gripper arms which comprise pliers and is arranged on an arm to be set successively in three positions.

In the first position of the arm, the contact ring is inserted by hand into the gripping device, in the second position the soldering strip is welded to the boards of the ring and in the third position the strip is cut off directly at the edge of the ring board. During the hand-carried out pivoting of the arm from the second to the third position

93 S '- ² "22, 10, 1979

55 816/17

The soldering belt is unwound from a spool. The vertical gripper axis and the vertical straight line determined by the stick electrodes are in the plane defined by the flat coil. The belt to be unwound from the spool shifts in a direction perpendicular to the vertical gripper axis and the vertical straight line defined by the electrodes. »The cutting blade is operated by means of a hand lever. After the strip is welded and cut off at the edge of a board, the stretcher is rotated 180 ° with the same ring to perform the welding and cutting of the strip on the second board of that ring Halogen bulbs at the same time erneblichen effort of human labor is not sufficient. The device also does not ensure sufficient accuracy when cutting by hand close to the edges of the ring boards, This further complicates the further operations in the production of incandescent lamps and increases the Lötbandverbrauch «

Object of the invention. '

The invention seeks to remedy the aforementioned technical and economic shortcomings.

'Presentation of the essence of the invention,.

The invention has for its object to develop a device for automatic, so much more efficient welding of Lötbanda'bschnitten to the inner surfaces of the boards of a contact ring and the automatic cutting of the welded band sections as close to the edge of these boards *

This task was accomplished by equipping an automatic

© ΐ / ι A · 5> ί1 -3- '22.10.1979

, ^{4ί 4} ^ ^ω 55 8Ί6 / 17

Carousel device with a disc-shaped horizontal-tal head solved with preferably 1.2 grips for the rings, the head turns over against the work stalls, of which the starting level for feeding and the final stage for the removal of the rings with two work stations for Bandschv / Eissen is determined. Each of these welding stands is with -.

a pair of welding electrodes,

a band cutoff, '' '

a coil with the band,

- A factory for pressing the tape to the lower electrode and

- A factory for returning the tape surplus - 'provided. In front of each of said welding stands is at least one test stand provided with a mechanical-electrical ring sensor connected to a storage arrangement and a welding power switch. Between the Ähfangsarbeitsstand for feeding the rings and the first test bench is close to various grips a roller unit for reversing the gripping tool arranged at 90 ° Between the first and the second weld a roller work for reversing the gripping tool is arranged by 180 °, preferably from zv / ei roller units for reversing the clamping tool is composed by 90 °, which are arranged at subsequent holding positions of the head, wherein there are preferably twelve such positions. Between the second welding level and the final working position for removing the rings, a roller work for reversing the clamping tool is arranged at 90 °. The end portion of the spiral track in the ring-vibrating container accommodated at the initial work station has two longitudinal cut-away portions forming three ledges supporting the rings. The width of these cut-outs is designed so that they are free to move under the action of the containers

21 4§31 -4- 22.10.1979

55 816/17

Vibrations can be introduced. At the outlet of this body, the raceway is formed exclusively by the central bar, which passes through a ring separator outside the container. The ring separator is formed by a slide chute which guides the rings falling along this chute and on the strip and is equipped with two parting rods which are strengthened on a common lever and alternately enter the transverse openings in the lower oblique slide part. The shape and dimensions of the cross section of the passage portion of the chute are adapted to the shape and dimensions of the rings so that they can give this a stabilized direction of movement and a mutually determined position.

The distance between the two separating bars and between the transverse openings in the lower part of the inclined chute is adapted to the distance between the subsequent openings of the falling into the feeder rings. The Ringenzubringer is designed in the form of a rotary arm with two working positions, of which the first is arranged at the outlet of the ring separator and the other in direct contact with the ring-clamping device. The Ami has a recess with a guide wedge for inserting the rings and is clamped with a gripper. For mounting the falling rings of a spring. These clamps have at their ends distance-retaining squats that are periodically inserted into the opening of the feeder arm. Under the feeder arm is an element for supporting the rings when they are placed against the tensioning device. Each pair of welding electrodes operate in a vertical plane passing through the axis of rotation of the head, each of these electrodes making a two-position reciprocating motion relative to the grips. The unwinding from the spool

, Q.-5- 22.10.1979

55 316/17

The soldering tape is displaced between the welding electrodes to the gripping ring of the ring to be welded and to the working plane of the electrodes by means of the work for pressing the strip to the lower electrode, the pressing element of which has a concave contact surface.

Each electrode pair is driven by means of a cam mounted on the main shaft of the device, while the support arms of these electrodes are fixed immovably; or it is driven by a control motor, while the support arms of these electrodes are slidably mounted to the gripping device of the ring to be welded. The tape cutting mechanism has a body in the form of a vertical frame, upper and lower slides which move vertically back and forth within the frame, a vertical shaft slidably disposed within the frame, an upper, the movement of the vertical shaft on the upper Slider transmitting lever and a lower, the movement of the vertical shaft on the lower slide lever transferring, To each slider is fixed a horizontal shaft, one end of which is provided with a knife and the other -ünde with a lever, the role of this lever on the immovably placed on the side part of the frame and adapted with its shape to such a knife work cam is performed, that these knives cut off the welded tape as close as possible to the -Kande of - ^ ingvorstände. The

mechanical-electric sensors for the presence of the ^ inge in the grips have the - ¹¹ Op _{111 of} a two-armed lever, of which one arm by its shape to the control of the presence of the rings in the grips adapted end and the other arm one by its shape to the

f 1 J §38 -6- · 22.10.1979

55 816/17

The lever of a sensor is driven by the cam of the main shaft of the device and its arms preferably form a right angle. '. ,

The head is provided with twelve clamping devices Üinge and "has twelve holding positions, wherein the arranged between the first and the second welding pivot position of the gripping tool by 180 ° from two in the subsequent holding stelations of the head arranged 'roller works to turn the gripping around 90 ° is composed,

i.

The invention makes it possible to increase the performance in the preparation of the rings for the further operations in the assembly of the halogen incandescent lamps by three times, thereby allowing the Kin'ßparung human labor, since all components of the device work automatically. The welded to the rings Lötbandabschnitte are cut with a smaller tolerance, so that the consumption of this band is smaller.

The inventive device is explained in detail below with reference to an embodiment and the drawing ₀

Show it:

Fig. 1: - a general plan view of the device;

Fig. 2; the plan view and the cross section through the metal ring of a halogen incandescent lamp with the Lötbandabschnitten;

2 I £ § 3 Q -7- · 22.10.1979

55 816/17

Pig. 3: the top view of the ring vibration container; Pig. 4: the side view of the rings * separator;

Pig. 5: the side view of the welding electrodes in the welding division together with the factory to the presser of the band to the lower electrode;

Pig. Fig. 6: the side view of the band cutting mechanism;

Pig. 7: the feeler of the presence of the rings in the grips, in a side view.

Λ { _}

The device is equipped with a head 1 in the form of a pulley about which are rotatably mounted twelve grips 2 for the contact rings 3. These grips 2 are provided with two gripper arms which comprise the ring like a pliers by means of a Peder comprising these arms. The head 1 rotates in a horizontal plane in the interrupted to twelve HaltestelDungen operation against the six, fixed to the stationary table 4 and lying on the edge of the head 1 working stalls. The starting work station I is provided with a ring vibration container 5, a ring separator 6 and a ^K ingezubringer 7.

The container 5 has a spiral track 8, the end portion of which has two longitudinal cutouts 9, through which three strips supporting the rings 3 are formed. The width of these cut-outs 9 is designed so that a free introduction of the boards 10 of the rings under the action of the vibrations v / ird possible.

At the outlet of ^E ehälters 5 forms the end of the

'21 4 038 * -8- 22,10,1979

, 55 816/17

Runway 8 only the middle-bar 11, which goes outside the container 5 through the ring separator 6. The separator 6 is executed in Forin a slant, on. , which are guided on the strip 11 slipping rings. The shape and dimensions of the cross-section of the passage part of the inclined chute are adapted to the shape and dimensions of the rings 3 so as to give them a stabilized direction and a certain position relative to each other. In the lower part of the oblique slide of the separator 6, two dividing rods 12 are mounted on a common double-armed lever, which enter alternately into the transverse openings 13 in the lower part of the inclined chute. The distance between these openings 13 and the separating bars 12 is adapted to the distance between the subsequent openings of the falling rings 3 When leaving the inclined chute of the separator 6, a ring feeder 7 is arranged, which is designed in the form of a rotating arm 14. This arm has two working positions, one of Y / elchen one, is arranged at the outlet of the inclined chute of the separator 6 and the other in direct contact with the chuck 2 _o The arm 14 has a ^ undaussparung with a guiding wedge for insertion of the falling rings in this recess and is equipped with gripping clamps for holding the rings by means of a spring 15. These clamps are provided at their ends with spacing cams 16 which are inserted periodically into the opening 17 in the support arm 18 of the input device. Under the arm 14 of the feeder, the element 19 for supporting the ring in its movement to the gripping tool 2 is arranged. Between the initial workstation I and. The first control work II a roller work for reversing the clamping tool 2 is housed by 90 °. At the first control workstation II is a mechanical-electrical sensor 20 of the

& I 4 11 ^^ -9- · 22.10.1979

55 816/17

Presence of Hinge arranged in the grips 2. This sensor is designed in the form of a double-armed lever 21, one arm of which is adapted by its shape to control the presence of the ring in the gripping tool 2 and the other, compared to the first offset by 90 ° ^A rm is to the operation of the microswitch 22nd adapted for the case that in the gripping tool 2 no ring is present ,

The microswitch 22 is electrically connected to a mechanical memory 23 fixed on the stationary table 4. The first welding level III is provided with a welding electrode pair 24, a band cutting mechanism 25, a work 26 for pressing the band to the lower electrode, a work 27 for returning the tape excess and provided with a coil 28 with the band. The electrodes 24 operate in the vertical plane passing through the axis of rotation of the head 1, with each electrode 24 making a two-position reciprocating motion relative to the tool 2. In the operative position, the end of the lower electrode is below the upper one Board 10 of the ring 3, while the end of the upper electrode presses on the upper surface of this board 10 * The pulses 28 with the tape is attached to the immovable 4 by means of a support arm. The tape to be unwound from the spool is displaced by means of the work 26 for pressing the tape between the electrodes 24 along the upper edge of the lower electrode. The pressing member 29 of this factory has a concave pressing surface to prevent the tape from protruding from the upper edge of the lower electrode. The electrodes 24 are driven by means of an ITock mounted on the main shaft of the apparatus. In the vicinity of the electrodes 24, the Bandabschneidewerk 25 is arranged '' which is a body in the form of a vertical. 30

"" SI JSI ^ P -10- 22.10.1979

• 55 816/17

an upper slider 31 and a lower slider 32 which reciprocate vertically in the frame 30, a vertical shaft 33 slidably disposed internally of the frame 30, an upper one, the movement of the vertical portion 33 on the upper slider 31 transmitting lever 34 and a movement of the vertical shaft 33 on the lower slide 32 transmitting lower lever 35 has »

To each slider is a horizontal shaft 36 is fixed, one end of which is provided with a vertical Hesser 37 and the other with a lever 38, the roller 39 set on the immovable on the side part of the frame 30 and with its shape to such a function the knife 37 adapted cam 40 is guided so that these knives cut the tape as close to the edge of the board 10 of the ring. After the tape has been cut off, its portion located between the edge of the board 10 and the end of the lower electrode is returned by the factory 27, which is operated by means of a lever and ^{1 is arranged} between the electrodes 24 and the coil 28.

Therefore, in the next movement of the electrodes 24 after the gripping tool 2, the tape end together with the end of the lower electrode can be re-inserted under the board 10 of the ring. Between the first welding level III and the second control working level Iv are two stops of the head 1 _β

On both of these positions ein'Rollenwerk is arranged for reversing the gripping tool 2 by 90 °. The second control workstation IV is equipped with a mechanical-electrical sensor 20 for checking the presence of the rings in the grips '2'. The second, for welding the belt with the

-11- 22.10.1979

55 816/13

second board 10 of the ring provided Wweißstand V is similar to the first weld level III equipped. Between the second welding ^level V and the Snd machining station VI there are two stops of the head 1, between which the last roller work for turning the clamping tool 2 by 90 ° is arranged. The end working state VI is provided with a device for removing the rings from the grips by means of a correspondingly designed sliding surface Between the final working level VI and the initial working state I is a holding position of the head 1, the rings 3 fall from 'the vibrating container 5 along the oblique slide of the separator 6 down where they v / using the separating rods 12 and the arm 14 of the feeder 7 individually introduced into the grips 2, the boards 10 of the ^K inge are used vertically in the grips. The first rotation of the gripping tool 2 by 90 prepares the iting for welding the strip to the first board 10 of the ring, which takes place on the first welding level III. The welding of the band with the second board 10 of the same ring, which takes place on the second welding level V, requires the rotation of the clamping tool 2 by 180 °. The last revolution of the gripping tool 2 in one revolution of the head 1 prepares the ring therein for removal from the gripping tool, v. -.Sub.o and the gripping tool for introducing a new ring. The sensors 20 of the presence of the singles in the grips allow the shutdown of the welding current of the electrodes 24 when there is no ring in the grips. The works located on the work stations are driven by the cams mounted on the main shaft of the apparatus so that the operation of these works is mutually synchronized.

Claims (10)

-12- 22 * 10.1979 55 816/17 Claim for invention. · 1, apparatus for welding Lötbandabschnitten with the bulb contact ring, in particular a halogen incandescent lamp, in which device, the head in the form of a disc with Sing-Spannzeugen with a submerged movement in a horizontal plane against those attached to a stationary table and to the edge of Kopjfes rotating workstations, of which! the beginning of this work is carried out with a spiral-type vibrating container, with a separator and a ring feeder, and the end working stand is provided with a device for removing the rings from the tensioning rings, the number of rings being equal Workstations, characterized in that it comprises two band welding stands (III; V), each of which is provided with a welding electrode pair (24), a band cutting mechanism (25), a coil (28) with the band, a work (26) is provided for pressing the tape to the bottom electrode and a work (27) for returning the Ba.ndüberöchußes, wherein prior to each of said ^a rbeitsständen (III) and (V) for -Bandschweißen at least one control state of work (II; IV) is present, which is provided with a memory (23) and a welding current switch connected mechanical-electrical sensor (20) for checking the presence of the j- »- inge in the pannseugen (2), and in addition between the Angan gs-workstation (I) for ring feed and the first control workstation (II) in the vicinity of the shifting grips (2) 'a roller work to turn over -ff-, e% Γχ , £ l% # & iJ -13- · 22.10.1979 55 816/17 the gripper (2) by 90 °, further between the first (III) and the second (V) band welding a .Rollenwerk for reversing the gripping tool by 180 ° and between the second band welding stand (Y) 'and the end working position (VI ) for, removing the rings a roller work for reversing the pens (2) is arranged at 90 °, 2! 4Ö.3S - ^1β - '22.10.1979 '55816/17 the mechanical-electrical sensor (20) has the shape of a double lever (21) in the grips, one arm of which conforms with its shape to the control of the presence of the rings in its grips and its other arm having its shape conformed to the control of the work of the microscope (22), the lever (21) being driven by the squat of the main shaft of the device and its arms preferably forming a right angle. · 2 I i © SS - ¹ 5 ~ 22.10.1979 55 816/17 · each pair of welding electrodes (24) is driven by means of a dock mounted on the main shaft of the device, while the support arms of each pair of electrodes (24) are fixed immovably to the working stands. 2 »Device according to point 1, characterized in that the end portion of the spiral track (8) of the vibration container (5) of the rings (3) has two longitudinal cutouts (9), the width of which free insertion of the boards (10) jder rings (3) under the action of the vibrations and forming the three support strips for the kinge, at the outlet of this container the web (8) consists exclusively of the central strip (11) which outside the container (.5) through the ring separator ( 6) goes through. Device according to item 1, characterized in that the ring denier (6) is formed by an inclined chute ν on which are guided the chutes (3) falling along this chute and on the strip (11) and those with two equipped on a common lever '-l-'rennstäben (12) which enter alternately in the transverse openings (13) in the lower i'eil the inclined chute, the shape and dimensions of the cross section of the passage part of the chute slide so to the shape and that the dimensions of the rings (3) are matched to one another, that they can be given a stabilized direction of movement and a position determined relative to one another, the distance between the separating teeth (12) and the transverse openings (13) in the lower part of the inclined chute being at the distance between the following openings 038 * 38 * -H- - 22.10.1979   55 81 β / 1? the in the feeder (7) falling down rings (3) is adapted. 4 »device according to point 1, characterized in that the feeder (7) of the rings (3) in the form of a rotary arm (14) is designed with two working positions, of which the first at the outlet of the ring. -Renner (6) and the the other being disposed in direct contact with the eyelet (2) of the rings, which arm (14) has a recess with a wedge for insertion of the rings and is provided with gripping clamps for stopping the falling rings by means of the spring (15) clamps are provided at their ends with the spacing squatting (16) periodically into the opening (17) of the l'ragarmes (18) of the feeder introduced v / ground, wherein under the ^A rm (14) of the feeder element (19 ) is arranged to support the rings during their movement to the gripping device (2). 5. Device according to item 1, characterized in that each pair of welding electrodes (24) operates in a vertical plane passing through the axis of rotation of the head (1), each electrode making a two-position back-and-forth movement relative to the clamping tool (2) while the soldering tape to be unwound from the spool (28) is moved between the welding electrodes (24) in the direction of the gripping jig (2j) by the work for pressing the tape against the lower electrode whose pressing member (29) has a concave pressing surface welding ring and is moved to the Arb'eitsebene the electrodes. 6. .Vorrichtung according to item 5, characterized in that Apparatus according to item 5, characterized in that each pair of welding electrodes (24) is driven by a flywheel motor, while the support arms of each pair of electrodes (24) are slidably mounted on the working stands relative to the gripping means (2) of the ring to be welded. Device according to item 1, characterized in that the band cutting mechanism (25) comprises a body in 5 "of a vertical frame (30), an upper slider (31) and a lower slider (32) located in the frame ( 30), a vertical shaft (33) slidably disposed within the frame (30), an upper lever (34) transmitting movement of the vertical shaft (33) to the upper slider (31), and a lower, the movement of the vertical shaft (33) on the lower slider (32) transmitting lever (35), wherein on each slider a horizontal shaft (36) is fixed, one of which with a knife (37) and the other end with a Lever (38) is provided, the roller (39) on the squat (40) is guided, which is immovably placed on the lateral part of the frame (30) and adapted with its shape to such function of the blade (37) that this , Knife cut the welded strip as close as possible to the edge of the boards (10) of the cutting edge 9e device according to item 1, characterized in that 10. The device according to item 1, characterized in that - · the head (1) with twelve grips (2) of the rings (3) is provided and has twelve holding positions, which between the first (III) and the second (V) Welding arranged rotary mechanism of the clamping tool (2) by 180 ° from two in the subsequent holding positions of the head (1) arranged roller works for reversing the clamping tool (2) is composed by 90 °. For this 4 pages drawings