KR19990083871A - Automatic riveting machine for hair pin and its turntable - Google Patents

Abstract

According to the present invention, a process of inserting a hairpin formed into a press machine, a rimming process of the inserted hairpin, a riveting process of the rimmed hairpin, and a discharging process of the riveted hairpin are automatically performed by an intermittently rotating turntable. The present invention relates to a hairpin automatic riveting device and a turntable for greatly improving productivity and to reduce manufacturing cost, and to pivotally installing a turntable with hairpin insertion grooves at the center of the body and intermittently rotating the turntable to one side of the body. Intermittent rotating device, Turntable stop device for stopping intermittent rotating turntable in position, Forced hairpin insertion device for matching the rivet hole and rivet holder by forcibly inserting the primary shaped hairpin into the insertion groove, Matching rivet hole And a rivet supply device for inserting the rivet wire between the rivet holder and the inserted rivet wire. It consists of a rivet cutting device for cutting to a proper length, a rivet punching device for hitting the cut rivets, and a hairpin discharge device for discharging the riveted hairpins, and a turntable for moving the hairpins by unit process. It has a ball-shaped donut shape, and a plurality of insertion grooves for inserting hairpins are formed integrally or separately and combined on the upper edge portion of the turntable, and the recess is formed on the outer circumferential surface of the body by intermittent rotation by unit process. It was made.

Description

Automatic riveting machine for hair pin and its turntable}

The present invention relates to a turntable used in an automatic hairpin riveting device and a hairpin automatic riveting device, and more particularly, a forming (pressing) hairpin inserting process, an inserted hairpin refrigerating process, and riveting of the hairpins. ) It is possible to reduce manufacturing costs by greatly improving workability and productivity by automatically discharging the riveted hairpin process by rotating turntable.

In the conventional hairpin, the elastic strip steel sheet 1 is sequentially formed by a press as shown in FIG. 1, and the elastic pieces 4 and 5 having the rivet holes 2 and 3 are formed as shown in FIGS. 2 and 3. And a hair clip 11 composed of a connecting portion 6 which connects the elastic pieces 4 and 5 to each other, an opening portion 7, and a pressing piece 10 having a bent portion 8 and a long hole 9. The primary processing is performed, and the rivet holes 2 and 3 are aligned so that the elastic pieces 4 and 5 of the hairpin 11, which are primarily processed, overlap each other up and down, and rivet as shown in FIG. After joining with (12), all or part of the hairpin 11 is finished by painting or plating, or finishing with decorative materials to manufacture the finished product, and its demand increases day by day because of its simple structure and convenience of use. I'm doing it.

On the other hand, when looking at the conventional hairpin riveting work process to manufacture the hairpin (11) first processed through a press machine through housewives or a separate employment force, the worker lifts the elastic piece (4) (5) with two hands ㆍ Reduce work efficiency by relying on the riveting work by matching rivet hole (2) (3) and then inserting rivet (12) into matching rivet hole (2) (3). In addition, since the work is very cumbersome and inconvenient, a lot of manpower is required, there is a problem that the productivity is lowered and the price competitiveness of the product is lowered due to the rising cost.

Therefore, the present invention is automatically inserted by the turntable that is intermittently rotating the insertion process of the hairpins formed by the press machine, the rimming process of the inserted hairpin, the riveting process of the rimmed hairpin, the discharge process of the riveted hairpin The purpose is to provide an automatic hairpin riveting device that can significantly reduce workmanship by greatly improving workability and productivity.

In addition, it is an object of the present invention to provide a turntable for intermittently moving the hairpin by unit process in the hairpin automatic riveting device.

In addition, the turntable is formed in the center of the hairpin automatic riveting device with a hairpin insertion groove at equal intervals, a rotation device for intermittently rotating the turntable to one side of the body, and prevents excessive rotation of the intermittent turntable to stop in the right position A stopper, a hairpin force insertion device for forcibly inserting the first-processed hairpin into the insertion groove of the turntable to close the elastic piece and match the rivet hole of the elastic piece, and a rivet insertion device for inserting the rivet between the matched rivet holes; A hairpin consisting of a rivet cutting device for cutting the inserted rivet to a suitable length, a punching device for pressing and inserting the riveted cut rivet, and a hairpin discharge device for discharging the riveted hairpin to the outside of the hairpin automatic riveting device. It is an object to provide an automatic riveting device.

In order to achieve the above object, it is installed on the discharge part of the hairpin manufacturing press machine to automatically rivet the hairpin discharged from the primary forming to the turntable rotating intermittently by unit process, and the turntable for moving the hairpin by unit process is centered. It has a donut shape with an axial hole formed in the upper part of the turntable, and a plurality of insertion grooves for inserting hairpins are formed integrally or separately and coupled to the upper edge of the turntable. To do it.

In addition, the hairpin automatic riveting device is installed in the center of the body shaft head turn grooves are formed at equal intervals, the intermittent rotation device for intermittently rotating the turntable to one side of the body, and stops the intermittent rotation turntable in place A turntable stop device, a hairpin force insertion device forcibly inserting the first processed hairpin into the insertion groove of the turntable to match the rivet hole and the rivet holder, and a wire-shaped rivet line between the matched rivet hole and the rivet holder. Rivet supply device for inserting, rivet cutting device for cutting the rivet wire inserted into the rivet hole into proper length, rivet punching device for hitting the cut rivet, and riveted hairpin It consists of a hairpin discharge device.

In addition, when the insertion groove of the turntable can be separated and coupled in the form of a chip, a locking step is formed at the entrance of the space part of the turntable, and a step is formed at both entrances of the chip to securely fix the chip and the turntable with pieces. To prevent separation or flow of the chip, and if the chip is worn or broken, it can be easily replaced with a new chip.

In addition, curved guides are formed at both inlets of the insertion part of the turntable so that the elastic pieces of the hairpin can be easily inserted.

In addition, in order to reduce the riveting failure, the turntable, which is formed with the hairpin insertion groove, the intermittent rotating device, and the turntable stop device, is separated up and down, precisely processed, and then assembled to allow the turntable to stop at the correct position for each unit process.

In addition, in the present invention, when the push of the intermittent rotary device advances, the turntable rotates about 1/8 counterclockwise, but the protrusion of the turntable, which is rotated counterclockwise by the turntable stop device at the same time as the push advances, is locked and rotated. By constraining, the turntable rotates exactly 1 / 8th and then stops, and each process is completed.When each process is completed, the intermittent and turntable stops allow the turntable to repeat the correct intermittent rotation, and the riveting and ejection of the hairpin To be automatic.

1: A sequential forming state plan view of a general hairpin.

2: a top view of the primary processed hairpin.

3: A perspective view of FIG. 2.

4 is a perspective view of a state in which the elastic piece of the primary processed hairpin is joined by rivets.

5 is a front view of a state of use of the present invention.

6 is a plan view of a state in which the rivet supply unit removed in the present invention.

7 is a plan view of the present invention.

8 is a plan sectional view of the turntable intermittent rotary device and the turntable stop device of the present invention.

9 is an external perspective view of the turntable of the present invention.

10 is a plan view of the present invention Figure 9;

11 is a perspective view of the insertion groove formed on the upper surface of the turntable in the present invention.

12 is an exploded perspective view of another embodiment of the present invention.

13 is a partial cross-sectional view of the rivet holder of the present invention.

14 is a cross-sectional view of another embodiment of the rivet holder portion in the present invention.

15 is an exploded perspective view of a part of the turntable of the present invention.

16 is a perspective view of another embodiment of the turntable of the present invention.

17 is a front view of a turntable according to another embodiment of the present invention.

18 is a partial plan view of the forced insertion device before the hairpin is inserted in the present invention.

19: Partial plan view of the forced insertion device after the hairpin is inserted in the present invention.

20 is a partial cross-sectional view of the hairpin force insertion device of the present invention.

21 is a front view of the present invention rivet feeding device.

22 is a rear view of the present invention rivet feeding device.

23 is a partially exploded perspective view of the rivet cutting device of the present invention.

24 is a cross-sectional view of the rivet cutting device of the present invention immediately before the cut.

25 is a cross-sectional view of the present invention rivet cutting device partial cross-sectional view.

26 is a cross-sectional view of the present invention rivet punching device just before punching.

27 is a partial cross-sectional view punching state of the present invention rivet punching device.

28 is a partial cross-sectional view of the present invention hairpin discharge device.

<Explanation of symbols for the main parts of the drawings>

(1)-steel plate (2) (3)-rivet hole

(4) (5)-Elastic (6)-Connection

(7)-Open Section (8)-Bending Section

(9)-Long (10)-Ap

(11)-Hairpin (12)-Rivet

(13)-Hair Pin Automatic Riveting Device (14)-Press Machine (Forming Machine)

(15)-Outlet of the press (16) (16a)-Body

(17) (17a)-insertion groove (18) (18a)-turntable

(19)-Axle (20)-Turntable intermittent rotator

(21)-Turntable stopper (22)-Hairpin force insert

(23)-Rivet Line (24)-Rivet Feeder

(25)-Rivet Cutting Machine (26)-Rivet

(27)-Rivet Punching Device (28)-Hairpin Discharge Device

(29)-Axes (30)-Top surface of turntable

(31)-chip (32) (36)-insertion

(33) (34)-Guide (35) (37) (113) (124) (135)-Slant

(38) (65)-Space (39) (40)-Jump

(41) (42)-Joint (43)-Piecehole

(44)-Nagong (45)-Piece

(46) (49)-Rivet Holders (48) (51) (51a)-Indentation Groove

(47)-Vertical Through Hole (50)-Inserting Rod

(52) (52a)-Hanging Stones (53)-Joiner

(54)-The Fastener (55)-The Upper Plate

(56)-Lower Plate (57)-Nagon

(58)-Lower Plate (59)-Joining Rod

(60)-Screwbar (61)-Hairpin Insertion Device

(62)-Hairpin Support (63)-Slope Outlet

(64)-Push (66)-Guide Rail

(67) (70) (81a) 81b) 81c (104) (123)-Air cylinder

(68) (71) (82a) (82b) (82c) 108 (126)-Air cylinder rod

(69)-Bent (72)-between connections

(73) (74)-Axial pin (75a) (75b) (75c) (76a) (76b) (76c)-Support span

(77a) (77b) (77c) (78a) (78b) (78c)-between guides

(79a) (79b) (79c)-Open Section 80a) (80b) (80c)-Slide

(83a) (83b) (83c)-support piece (84)-support plate

(85) (86)-Pressure Roller (98) (99)-Shaft

(100) (101)-Gear (102)-Lever

(103) (122)-bracket (105) (106)-ring

(107) (130)-Spring (109)-Top Cutter

(110)-Lower Cutter (111)-Soccer

(112)-Guide (114) (134)-Public

(115)-Heel Bar (116)-Joiner

(116a)-Axis (117)-Long

(118)-Punching Rod (119)-Punching Ball

(120)-Rivet Supply Hole (121)-Home

(125) (132)-Guide (127)-Block

(129)-Head (131)-Punch

(133)-Support (134)-Tightening Means

Hereinafter, the preferred technical configuration and working relationship of the present invention will be described in detail with reference to the accompanying drawings.

The hairpin automatic riveting device 13 of the present invention is installed in the discharge portion 15 of the hairpin manufacturing press 14 as shown in Figure 5, as shown in Figure 3 and 4, the elastic rivet hole (2) 3 is formed The blotter piece 10 which has the piece 4 and 5, the connection part 6 which connects the elastic pieces 4 and 5 mutually, the opening part 7, the bend part 8, and the long hole 9. The hairpin 11 composed of) is automatically riveted and discharged by a sequential process while intermittently rotating along the rotary turntable.

In the hairpin automatic riveting device 13 of the present invention, the shaft bar 19 is installed at the center of the body 16 as shown in FIGS. 6 to 8, and the hairpin insertion grooves 17 are equally spaced on the outer surface of the shaft bar 19. Turntable 18 formed as is coupled.

The turntable intermittent rotation device 20 for intermittently rotating the turntable 18 to one side of the body 16 of the hairpin automatic riveting device 13, and the turntable stop device 21 for stopping the intermittent rotation of the turntable 18. ) And the hairpin force insertion device 22 forcibly inserting the primary-formed hairpin 11 into the insertion groove 17 of the turntable to align the rivet holes 2 and 3 with the rivet hole 2 that is matched. (3) Cut the rivet supply device 24 into which the rivet wire 23 in the form of wire is inserted between the rivet wire 23 and the rivet wire 23 inserted into the rivet hole 2 and 3 to an appropriate length. A rivet cutting device 25 for ting, a rivet punching device 27 for hitting the cut rivet 26, and a hairpin for discharging the riveted hairpin to the outside of the hairpin automatic riveting device 13 The discharge device 28 is large.

FIG. 9 is a perspective view of the turntable 18 of the present invention, and FIG. 10 is a plan view of the present invention, in which a shaft hole 29 is formed in the center of the turntable 18 to form a generally donut shape, and an edge portion of the upper surface 30 of the turntable 18. There is a plurality of insertion grooves 17 into which the hairpin 11 is inserted are formed at equal intervals toward the shaft hole 29.

Although the insertion grooves 17 of the turntable 18 into which the hairpin 11 is inserted are illustrated as eight in the drawing, the number of the grooves 11 may be formed more or less depending on the situation.

The insertion groove 17 of the turntable 18 may be formed integrally by processing the upper surface 30 of the turntable 18 as shown in FIG. 11 or may be separated and coupled by forming a chip 31 as shown in FIG. In the case where the chip 31 is detachably coupled, the chip 31 may be easily replaced with a new chip when the chip 31 is worn or damaged.

The insertion groove 17 formed in the turntable 18 forms an insertion portion 32 that opens to the edge portion of the turntable 18 to allow the elastic pieces 4 and 5 of the hairpin 11 to be inserted therein. At both inlet portions of the insertion portion 32, curved guide portions 33 and 34 are formed, respectively, so that the elastic pieces 4 and 5 can be easily inserted.

In addition, the height of the inserting portion 32 and the inclined portion 35 into which the elastic pieces 4 and 5 of the hairpin are fitted is formed almost equal to or slightly higher than the height at which the elastic pieces 4 and 5 overlap or overlap. By making the elastic pieces (4) (5) close in close contact with two layers to achieve a robust riveting.

The inclined portion 35 is formed inside the insertion portion 32 so that the inclined portion 35 is gradually narrowed toward the center of the turntable 18 so that the hairpin 11 is forcibly inserted by the hairpin force insertion device 22. Both sides of the elastic pieces 4 and 5 are folded and overlapped by the action of) so that the rivet holes 2 and 3 coincide with each other up and down.

The lower pin portion 36 and the lower inclined portion 37 having a smaller size than the inserting portion 32 and the inclined portion 35 are formed at a position slightly lower than the inserting portion 32 and the inclined portion 35. When the elastic piece (4) (5) of the 11) is squeezed so that the descending blotting piece (10) is inserted so as not to interfere with the soiling operation of the elastic piece (4) (5).

If the tip of the tack piece 10 is sharp, it may not be necessary to form the curved guide portion in the lower insertion portion 36. If not, the curved guide portion may be formed like the upper insertion portion 32.

On the other hand, when the inserting portion 32, 36 and the inclined portion 35, 37 is processed into a chip 31 structure as shown in Figure 12, the chip 31 is accommodated in the upper surface 30 of the turntable 18 To form a space portion 38 that can be, but formed slightly deeper than the height of the chip 31 so as to be inclined with the insertion portion 32 is inserted into the elastic piece (4) (5) of the hairpin 11 as shown in FIG. By positioning the part 35 at a position slightly lower than the upper surface 30 of the turntable 18, the elastic pieces 4, 5 of the hairpin 11 can be inserted.

A pair of stepped portions 41 are formed at the inlet portion of the space 38 so as to face the engaging jaws 39 and 40, and coupled to the engaging jaws 39 and 40 at both inlet portions of the chip 31. A 42 is formed to prevent the chip 31 from being separated, and a piece hole 43 having a locking jaw is formed at the bottom of the insertion part 36 of the chip 31, and at the bottom of the space 38. The hole 44 is formed to securely fix the chip 31 and the turntable 18 with the piece 45 to prevent the chip 31 from flowing or separating.

In addition, a riveting portion is formed inside the upper inclined portion 35 so as to rivet the riveted holes 2 and 3 overlapped with each other.

The riveting portion forms a semicircular rivet holder 46 on the inner upper surface of the upper inclined portion 35 as shown in FIG. 13, or forms a vertical through hole 47 in the upper inclined portion 35 as shown in FIG. 14. Then, the insertion rod 50 of the rivet holder 49 having a semicircular recessed groove 48 is formed by forcibly fitting so that the elastic pieces 4 and 5 can be riveted.

The turntable 18 is intermittently formed by the intermittent rotating device 20 by forming the same number of recessed grooves 51 and the engaging protrusions 52 at the same interval below the outer peripheral surface of the turntable 18. Allow it to rotate.

In the present invention, the turntable 18 may be configured to be separated up and down as shown in Figs. 9 and 15, or may be integrally formed as shown in Figs.

When the turntable is integrally formed as shown in FIGS. 16 and 17 without any distinction between the upper and lower parts, the recessed grooves 51a and the engaging portions 52a have the same number of grooves as the insertion grooves 17a in the lower circumferential surface of the body 16a of the turntable 18a. ) May be formed at equal intervals.

In the above, the recess 51a may be formed in an elliptical or rectangular shape, but precision machining is difficult. Thus, as shown in FIGS. 9 and 15, the plurality of insertion grooves 17, the coupling holes 53, and the fastening holes 54 alternately. Separating the formed upper plate 55, the lower plate 58 of the same number of grooves 51 and the engaging protrusion 52 and the coupling hole 56 and the lower hole 57 formed alternately as the insertion groove 17 Then, the upper and lower coupling holes 53 and 56 which are alternately positioned to coincide with each other coincide with each other, and then the coupling rod 59 is inserted by fastening and fixed, and the screw rods are fastened to the fastening hole 54 and the hole 57. When the 60 is fastened and fixed, the turntable 18 having a rigid configuration as shown in FIG. 9 is completed, and the lower plate 58 can be processed while being separated, so that precision processing is possible, so that the turntable 18 stops 21. By stopping at the correct position for each unit process is almost no riveting defects.

Figure 6 is a planar configuration in a state in which the rivet supply device 24 is removed in the present invention, the turntable intermittent rotary device 20 for intermittently rotating the turntable 18 as shown in Figure 8 on the outside of the turntable 18, The turntable stop device 21 which stops the rotating turntable 13 in a fixed position and the hairpin 11 which is discharged from the press 14 and slightly inserted into the insertion groove 17 as shown in FIG. ), The rivet insertion device 61 for entering and the hairpin 11 entered to the insertion portion 32 are forcibly inserted as shown in Figs. 19 and 20, so that the rivet holes 2 and 3 of the hairpin are moved up and down. Matching hairpin force insertion device 23, and hairpin support device 62 for pushing the hairpin 11 during the riveting period to prevent the flow or backward of the hairpin 11 when riveting as shown in Figure 20, The outside of the hairpin automatic riveting device (13) through the inclined outlet 63 through the riveted hairpin Hairpin discharge device 28 for discharging with is installed.

On the other hand, the turntable intermittent rotation apparatus 20 is a guide portion 66 which the push 64 is in sliding contact with one side of the turntable 18 and the space 65 in which the push 64 can move forward and backward. Is formed, the air cylinder 67 is fixed to the outside of the body 16, the rod 68 of the air cylinder 67 is loosely penetrated through the through-hole formed in the body 16 is connected to the push 64.

The end portion of the push 64 forms a curved portion 69 facing the turntable 18 to be inserted into the recess 51 of the turntable 18 so that the push 64 moves forward by the protrusion of the rod 68. The turntable 18 is then rotated about 1/8 counterclockwise.

Meanwhile, as the push 64 moves forward, the rod 71 of the air cylinder 70 of the turntable stopper 21 protrudes as shown in FIG. 8, so that the locking portion 52 of the turntable 18 which is rotated counterclockwise is Since the rotation is constrained by the end of the protruding rod 71, the turntable 18 is stopped after exactly 1/8 rotation.

When the turntable 18 stops after exactly 1/8 of rotation, each process is performed. When each process is completed, the air cylinder 70 rod 71 is immersed, and the push 64 moves backward and then moves forward. While repeating, the turntable 18 is intermittently rotated, and the hairpin 11 is automatically riveted according to the intermittent rotation of the turntable 18.

In the above, the connecting rod 72 connecting the rod 68 and the push 64 of the air cylinder is connected to the shaft pins 73 and 74, respectively, so that there is some play, so the push 64 slightly exceeds 1/8. Even if protruded, there is no fear of overload or damage of the push 64 or the connection between the 72.

In the present invention, the rivet insertion device 61 and the hairpin force insertion device 22 and the hairpin support device 62 that push or support the hairpin 11 are a pair of support sections 75a, 75b, 75c, 76a. (76b) (76c), respectively, fixed to the body (16), and a pair inside the front end of the support sections (75a) (75b) (75c) (76a) (76b) (76c) facing the turntable (18) Between the guides 77a, 77b, 77c, 78a, 78b, and 78c.

Slide guides (77a) (77b) (77c) (78a) (78b) (78c) are provided with slides (80a) (80b) (80c) having openings (79a) (79b) (79c) for hairpin insertion. Air cylinders 81a, 81b, 81c are respectively fixed to the rear ends of the support sections 75a, 75b, 75c, 76a, 76b, 76c.

The rear ends of the slides 80a, 80b and 80c are connected to the ends of the rods 82a, 82b and 82c of the air cylinders 81a, 81b and 81c so that the slides 80a, 80b and 80c are The support piece 83a which is configured to be able to move forward and backward, and suppresses the rise and detachment of the hairpin connecting portion 6 above the openings 79a, 79b, 79c of the slides 80a, 80b, 80c. 83b and 83c are fixed respectively.

FIG. 21 is a front view of the rivet supply device 24 of the present invention for supplying the rivet wires 23 to the rivet holes 2 and 3 of the hairpin 11 in a proper length, and FIG. 21, a pair of pressure rollers 85 and 86 having the same outer diameter are axially installed on the front surface of the support plate 84 fixed to the upper surface of the rivet cutting device 25 as shown in FIG. The outer circumferential surface of the semi-circular concave groove 87, 88 into which the rivet wire 23 is inserted is formed round.

A plurality of idle rollers 89 are axially mounted on the left and right sides of the rivet wires 23 to guide the rivet wires 23 transferred to the pressure rollers 86 and 86 on the upper portions of the pressure rollers 86 and 86. On one side of the support plate 84 is provided with a gap adjusting means 90 for finely moving the horizontal position of one side of the feed rollers 85 so as to finely adjust the gap between the feed rollers 85 and 86. do.

The gap adjusting means (90) is inserted into the opening groove (91) of the support plate (84) for sliding slide 92, and bolt 93 and bolt for finely adjusting the position of the slide 92 to the left and right sides It consists of the nut 94 which fixes the position of 93, the spring 95 which supports the slide 92, and the nut 95a which can adjust the holding force of the spring 95. As shown in FIG.

In addition, the upper left and right sides of the support plate 84 is composed of a piece 96 and a nut 97, and an interval adjusting means for finely moving the horizontal position of the idle roller 89 is provided. It is possible to fine tune the spacing of.

A pair of gears 100 and 101 of the same size are fitted to the shaft rods 98 and 99 of the pressure rollers 85 and 86 projecting to the rear surface of the support plate 84, and then engaged with each other to be interlocked. The lever 102 is fixed to the one side shaft 98.

The air cylinder 104 is fixed by using the bracket 103 on one side of the support plate 84, and the rings 105 and 106 are formed on the lever 102 and the bracket 103, and then both ends of the spring 107. The lever 102 is pushed in the direction of the air cylinder 104 and the rod 108 end of the air cylinder 104 is brought into contact with the lever 102.

Therefore, when the rod 108 of the air cylinder 104 protrudes, the lever 102 rotates about the shaft 98 in the direction of the arrow of FIG. 22, the one gear 101 rotates counterclockwise, The other gear 100 engaged is rotated in the clockwise direction, and the pressure rollers 85 and 86 fixed to the same shafts 98 and 99 also rotate in opposite directions, so that the one side rollers 85 or 86 rotate. The rivet wire 23 as much as one arc length descends, and is injected into the rivet holes 2 and 3 and the rivet holder 46.

Figure 23 is a partially exploded perspective view of the rivet cutting device 25 of the present invention, Figure 24 is a cross-sectional view immediately before the cut into a partial cross-sectional view of the rivet cutting device 25 of the present invention, Figure 25 is a cross-sectional view cut into a partial cross-sectional view of the present invention rivet cutting device 25 The upper cutter 109 and the lower cutter 110 are coupled to each other, and the shaft hole 111 is axially coupled to the shaft portion 116 of the lower cutter 110 at the center of the upper cutter 109. A through hole 114 having a guide tube 112 and an inclined portion 113 for guiding the inflow of the rivet line 23 to one side of the body is formed, and the elevating rod 115 is coupled to the through hole 114.

In the center of the lower cutter 110 is formed a coupling hole 116 is inserted into the shaft hole 19 and the shaft portion 116a is coupled to the upper cutter 109, the guide tube 112 is coupled to the body portion An arc-shaped long hole 117 and a punching rod 118 is formed to be punched to the lifting hole 119 is formed, the supply hole 120 for supplying the rivet wire 23 to one side of the long hole 117 It is formed vertically, the bottom surface of the lower cutter 110, the cut rivet 26 forms an arc-shaped groove 121 that can move without resistance in the next punching process.

Also, since the upper cutter 109 is fixed to the support plate 84 as shown in FIG. 23, the both ends of the spring 100a are attached to the piece 137 located at one side of the support plate 84 and the fixture 138 as shown in FIG. 7. The lower portion of the guide tube 112 which protrudes slightly to the lower portion of the upper cutter 109 is caught by the long hole 117 that is formed on the upper surface of the lower cutter 110 so that the upper cutter 109 is hardened. To prevent it.

When the rivet wire 23 is lowered by the arc length in which the feed roller 85 or 86 is rotated and introduced into the rivet holes 2 and 3 and the rivet holder 46, the insertion hole of the rivet punching device 27 The 128 and the through hole 114 do not coincide with each other up and down as shown in FIG.

In this state, when the punch 131 of the press machine 14 descends and hits the head 129 of the elevating rod 115, the elevating rod 115 descends, and the inclined portion 128 of the elevating rod 115 descends. ) Enters the through hole 114 in sliding contact with the inclined portion 113 of the upper cutter 109, the upper cutter 109 coupled to the shaft portion 116a is rotated, the lower cutter 110 is a shaft ( 19, the rivet wire 23, which is relatively soft as shown in FIG. 25, is easily cut, and the rivet 26 introduced into the rivet holes 2 and 3 and the rivet holder 46 continues to descend as shown in FIG. Since the punching rod 118 is punched as shown in FIG. 27, the riveting of the rivet 26 is performed.

When the riveting is completed and the punch 131 is raised, the lifting rod 115 is raised to the original position as shown in FIG. 24 by the elastic force of the spring 130, and the upper cutter 109 is applied to the spring 100a. As a result, as shown in FIG. 24, the inserting hole 128 and the through hole 114 wait in a state where the insertion hole 128 and the through hole 114 do not coincide with each other, waiting for the next cutting process and the punching process.

FIG. 26 is a cross-sectional view of the rivet punching device of the present invention immediately before punching, and FIG. 27 is a cross-sectional view of the rivet punching device of the punching state, and the upper cutter 109 on one side of the block 127 that is inserted into and fixed to the shaft 19. After forming the insertion hole 128 to be matched up and down with the through-hole 114, the head 129 is formed on the upper portion of the body and the elevating rod 115 is inserted into the outer surface of the body to insert the elevating bar 115 The lifting guide bar 132 is vertically formed on one side of the head 129 on which the punch 131 of the press machine 14 is hit, and the lifting guide bar 132 includes the support piece 133. A through hole 134 formed on one side is loosely fitted to prevent the lifting guide and the positional deviation of the elevating bar 115, and the other side of the support piece 133 is a fastening means 134 on the upper surface of the shaft bar 19. To restrain the excessive rise of the elevating rod 115 and to determine the elevating stroke of the elevating rod 115. When the lifting rod 115 descends due to the punch 132, the inclined portion 135 of the lifting rod 115 is formed on the lower portion of the lifting rod 115. The upper cutter 109 rotates while contacting the inclined portion 113 so that the rivet lines 23 inserted into the rivet holes 2 and 3 and the punching hole 119 are sheared (cut).

In the above, the bottom surface of the punching rod 118 is formed to be riveted by forming a semicircular recessed groove like the recessed groove 46 of the rivet holder 49.

28 is a partial cross-sectional view of the present invention hairpin discharge device 28, by using the bracket 122 to the upper portion of the inclined discharge port 63 to vertically fix the air cylinder 123, inclined to the upper surface of the body 16 By fixing the guide rod 125 having the portion 124 to prevent the hairpin moving to the discharge portion to rise above the rod 126, when discharging the riveted hairpin as shown in Figure 28 of the air cylinder 123 When the rod 126 is lowered by the operation, the hairpin hanging on the rivet holder 49 falls to the inclined discharge port 63.

Reference numeral 136 denotes a cover, 137 denotes a piece, 138 denotes a fixture, 139 denotes a discharge portion from which remnants are generated during the riveting process, and 140 denotes a remnant generated during the riveting process. Pneumatic supply port for discharging, 141 is a forming device, 142 is a pneumatic timing unit, 143 is a pneumatic feeding device, 144 is a rivet wire withdrawal reel, 145 is a steel strip withdrawal reel, 146 ) Is a pedestal, and 147 is a motor.

The hairpin automatic riveting device 13 and the turntable of the present invention configured as described above are to be installed and used in the discharge part 15 of the press 14 as shown in FIG. 5, and a rivet line on the upper portion of the press 14. (23) A reel 145 for drawing is installed so that the rivet wire 23 is supplied to the rivet supply device 24, and a reel 144 for drawing the strip steel sheet 1 is installed on one side away from the press machine 14. When the strip steel sheet 1 is supplied to the forming apparatus 141 by a predetermined amount, the hairpin 11 is primarily discharged to the discharge unit 15 as shown in FIGS. 3 and 4. By the pneumatic timing unit 142, air pressure is supplied to the air cylinders 67, 70, 81a, 81b, 81c, 104, and 123 at an appropriate interval so that the hairpin automatic riveting device 13 automatically operates. It is operated as, the hairpin 11 is processed by the intermittent rotation of the turntable 18 is moved to each unit process automatically while being riveted and discharged.

On the other hand, the turntable 18 is rotated in the counterclockwise direction at the same time as the push 64 advances, but as the rod 71 of the air cylinder 70 is protruded as shown in FIG. Since the portion 52 is locked to the end of the rod 71 and the rotation is constrained, the turntable 18 is stopped after exactly 1/8 rotation.

When the turntable 18 stops after exactly 1/8 of rotation, each process is performed. When each process is completed, the air cylinder 70 rod 71 is immersed, and the push 64 moves backward and then moves forward. While repeating the turntable 18 is intermittently rotated, the hairpin 11 is repeatedly riveted automatically according to the intermittent rotation of the turntable 18, the air cylinder rod 68 and the push 64 is the shaft pin 73 ( 74, there is some play by the connection 72 connected to the connection, so even if the push 64 protrudes slightly over 1/8, there is no fear of overload or breakage of the push 64 or the connection 72.

On the other hand, when the primary processed hairpin 11 is discharged from the press 14, the hairpin 11 is inserted into the groove 17 of the turntable 18 by the discharge force and the guiding action of the curved guides 33 and 34. Lightly inserted into the turntable, the turntable 18 is rotated 1/8 counterclockwise by the turntable intermittent rotating device 20, and the locking portion 52 of the turntable 18 is caught by the end of the rod 71 so that The hairpin 11, which is stopped and slightly fitted after the rotation, is moved to the hairpin inserting device 61 to stop.

When the hairpin 11 is moved to the hairpin inserting device 61, the air cylinder 81a of the hairpin inserting device 61 is actuated by pneumatic pressure so that the rod 77a protrudes and the slide 83a moves forward to slightly insert the hairpin ( The elastic pieces 4 and 5 of the 11 are pushed up to the insertion part 32.

When the elastic piece 4, 5 is inserted up to the insertion part 32, the rod 82a and the slide 80a move backward by the operation of the air cylinder 81a, and the hairpin 11 can move to the next process. 18, the turntable 18 is rotated 1/8 counterclockwise by the turntable intermittent rotation apparatus 20, and the locking portion 52 of the turntable 18 is caught by the end of the rod 71 so that exactly 1 After turning / 8 and stopped, the hairpin 11 inserted up to the insertion part 32 is moved to the hairpin forced insertion device 22 to stop as shown in FIG.

When the hairpin 11 moves to the hairpin force insertion device 22 and stops, the air cylinder 81b of the hairpin force insertion device 22 is operated to protrude the rod 77b and the slide 83b moves forward to insert the insertion part. The elastic pieces 4 and 5 of the hairpin 11 inserted up to 32 are forcibly pushed up to the inclined portion 35 as shown in FIG. 19, and thus both elastic pieces parallel to each other by the inclined surface of the inclined portion 35. (4) (5) is piled up and down so that the rivet holes (2) (3) and the rivet holder (46) vertically coincide.

The rivet wire 23 is supplied as shown in FIG. 24 by the rivet supply device 24 positioned on the turntable 18 in a state where the rivet holes 2 and 3 and the rivet holder 46 vertically coincide with each other. .

That is, when the rod 108 of the air cylinder 104 protrudes, the lever 102 rotates about the shaft 98 in the direction of the arrow of FIG. 22, and the one gear 101 rotates counterclockwise. The other gear 100 engaged is rotated in the clockwise direction, and the pressure rollers 85 and 86 fixed to the same shafts 98 and 99 also rotate in opposite directions, so that the one side rollers 85 or 86 rotate. The rivet wire 23 as much as one arc length descends, and is injected into the rivet holes 2 and 3 and the rivet holder 46.

When the rivet wire 23 is inserted into the rivet hole (2) (3) and the rivet holder 46 is cut to the appropriate length by the rivet cutting device 25, the air cylinder (11) to move to the next process ( By the operation of 81b, the rod 82b and the slide 80b are reversed.

When the backward movement of the slide 80b is completed, the turntable 18 is rotated 1/8 counterclockwise by the turntable intermittent rotating device 20 and then stopped, and the rivet holes 2 and 3 and the rivet holder 46 are stopped. The rivet 26 is inserted into the hairpin 11 is moved to the rivet punching device 27 to stop, the rivet punching device 27 is operated to perform a riveting by pressure punching the upper portion of the rivet 23.

That is, when the rivet wire 23 is lowered by the length of the circular arc in which the feed rollers 85 or 86 are rotated and introduced into the rivet holes 2 and 3 and the rivet holder 46, the insertion hole of the rivet punching device 27 The 128 and the through hole 114 do not coincide with each other up and down as shown in FIG.

In this state, when the punch 131 of the press machine 14 descends and hits the head 129 of the elevating rod 115, the elevating rod 115 descends, and the inclined portion 128 of the elevating rod 115 descends. ) Enters the through hole 114 in sliding contact with the inclined portion 113 of the upper cutter 109, the upper cutter 109 coupled to the shaft portion 116a rotates, the lower cutter 110 is the shaft 19 As shown in FIG. 25, the relatively soft rivet wire 23 is easily cut, and as shown in FIG. 26, the rivet 26 inserted into the rivet holes 2 and 3 and the rivet holder 46 continues to descend. Since the rivet 26 is punched by the rod 118 as shown in FIG. 27, and the riveting is completed and the punch 131 is raised, the lifting rod 115 is driven by the spring force of the spring 130. As shown in FIG. 24, the upper cutter 109 is rotated back to the original position by the spring 100a so that the insertion hole 128 and the through hole 114 coincide up and down. While waiting for a state that is not and waits for the next cutting step and punching step.

On the other hand, when the riveting of the hairpin is achieved, the turntable 18 is stopped by turning the intermittent rotary device 20 by 1/8 counterclockwise, and the riveted hairpin is raised by the guide inclined rod 125. This is prevented while moving to the hairpin discharge device 28 is located, when the hairpin is located in the hairpin discharge device 28, the air cylinder of the hairpin discharge device 28 to operate the rod 126 is lowered by the inclined discharge port ( 63), these processes are carried out continuously and simultaneously, the riveting and ejection of the hairpin is made automatically.

The air cylinders 67, 70, 81a, 81b, 81c and 104, 123 used in the present invention are operated in conjunction with an appropriate timing by an air pressure source (not shown).

As described above, the present invention works by inserting the hairpin formed into the press machine, the rimming process of the inserted hairpin, the riveting process of the rimmed hairpin, and the process of discharging the riveted hairpin by the turntable. There is an effect that can significantly reduce the manufacturing cost by significantly improving the performance productivity.

In addition, when the turntable 18 is configured to be separated and combined in the form of a chip 31, when the chip 31 is worn or damaged, it can be easily replaced with a new chip. 39 and 40 are formed, a pair of stepped portions 41 and 42 are formed at the inlet portion of the chip 31 and the chip 31 and the turntable 18 are firmly fixed to the piece 45 so that the chip There is an effect that separation or flow of (31) is prevented.

In the present invention, the curved guide portions 33 and 34 are formed at both inlet portions of the insertion portion 32 of the turntable 18 so that the elastic pieces 4 and 5 of the hairpin 11 are easily inserted. There is.

If the turntable 18 is separated and machined up and down and then assembled, precision machining is possible and the turntable 18 is stopped at the correct position for each unit process, thereby effectively eliminating the riveting defect.

In the present invention, the turntable 18 rotates counterclockwise by about 1/8 by the push 64 of the intermittent rotary device, but rotates counterclockwise by the turntable stop device 21 simultaneously with the advance of the push 64. When the locking portion 52 of the turntable 18 is stopped by the turntable stop device 21, the rotation is constrained by exactly 1/8 of the turn, and the turntable 18 stops after the turn of the turntable 18 is exactly 1/8 of a turn. When each process is made, and each process is completed, since the intermittent rotation of the turntable 18 is repeated by the intermittent rotating device 20 and the turntable stop device 21, the riveting and ejection of the hairpin 11 is automatically performed. It has an effect.

In addition, the connecting rod 72 connecting the rod 68 and the push 64 of the air cylinder is connected to the shaft pins 73 and 74, respectively, so that there is some play, so the push 64 slightly exceeds 1/8. Even if protruded, there is an effect that there is no fear of overload or breakage of the push 64 and the connection (72).

In the present invention, when the rod 108 of the air cylinder 104 protrudes, the lever 102 rotates about the shaft 98, and the one gear 101 rotates counterclockwise and engages with the other gear ( 100 rotates in the clockwise direction, and the rollers 85 and 86 fixed to the same shafts 98 and 99 are also rotated in the opposite directions, so that one circular feed roller 85 or 86 is rotated as much as the arc length. There is an effect that the rivet wire 23 is lowered and introduced into the rivet holes 2 and 3 and the rivet holder 46.

Claims (6)

The insertion process for inserting the first-hand hairpin into the press machine, the reaming process of the inserted hairpin, the riveting process of the retracted hairpin, and the discharge process of the riveted hairpin are automatically performed by the intermittent rotating turntable. Featuring automatic hairpin riveting device. A turntable intermittent rotating device for axially installing a turntable 18 having hairpin insertion grooves 17 formed at equal intervals on an outer surface of the shaft bar 19 of the body 16, and intermittently rotating the turntable 18 to one side of the body 16. 20), the turntable stop device 21 for stopping the intermittent rotation of the turntable 18, and the primary-formed hairpin 11 are forcibly inserted into the insertion groove 17 of the turntable so as to rivet the hole 2 (3) a hairpin forced insertion device 22, a rivet supply device 24 for inserting the rivet wire 23 between the matched rivet holes (2) (3) and the rivet holder (49), and a rivet hole (2) a rivet cutting device (25) for cutting the rivet wire (23) inserted into (3) to an appropriate length, and a rivet punching device (27) for hitting and cutting the cut rivet (26); , Hairpin automatic riveting device consisting of a hairpin discharge device 28 for discharging the riveted hairpin to the outside of the hairpin automatic riveting device (13). A shaft hole 29 is formed in the center of the turntable 18 for moving the primary processed hairpin 11 for each unit process, and the hairpin 11 insertion groove 17 is integrally formed at the edge of the upper surface of the turntable 18. And / or a plurality of separate forms, and the hairpin auto riveting, characterized in that intermittent grooves 51 and engaging protrusions 52 are alternately formed on the outer circumferential surface of the body 16 to allow intermittent rotation for each unit process. turntable. The turntable of claim 3, wherein the turntable includes a top plate 55 having a hairpin insertion groove 17 and a shaft hole 29, a bottom plate 58 having a recessed groove 51, a locking portion 52, and a shaft hole 29. Turntable for automatic riveting hairpins, characterized in that to be separated and processed into a joining means. 5. An inserting portion (32) is formed in an edge portion of the turntable (18) outwardly, and curved guide portions (33) and (34) are formed at both inlet portions of the inserting portion (32). ), An inclined portion 35 that gradually narrows toward the center of the turntable 18 inside the insertion portion 32, and is somewhat lower than the insertion portion 32 and the inclination portion 35. For the hairpin automatic riveting, characterized in that the insertion portion 32 and the inclined portion 35 has a lower insert portion 36 and a lower inclined portion 37 having a smaller size so that the hairpin blotter piece 10 is inserted therein. turntable. The space part 38 in which the chip | tip 31 is accommodated is formed in the upper surface 30 of the turntable 18, The latching jaw 39 is provided in the inlet part of the space part 38. ) 40 facing each other, and a pair of stepped portions 41 and 42 coupled to the locking step 39 and 40 at both inlet portions of the chip 31 are separated from the chip 31. And a piece hole 43 is formed at the bottom of the insertion part 36 of the chip 31, and a hole 44 is formed at the bottom of the space part 38 to form the chip 31 and the turntable with the piece 45. Turntable for automatic riveting of hairpins, characterized in that (18) is firmly fixed.