KR20040096481A - Nut feeder - Google Patents

Abstract

PURPOSE: A nut feeder is provided to smoothly and stably feed nuts and precisely place the nuts on a nut/panel welding machine. CONSTITUTION: A nut feeder is composed of a selector(100) for selecting nuts(N) guided by a guide rail(120), a guide unit(200) coupled to the end of the guide rail and loading the nuts, a moving unit(300), a station(500), and a feeder arm(600) coupled to the station. The guide unit detects the loaded nuts with a sensor and discharges the loaded nuts by stoppers. The moving unit places the discharged nuts on a carrier block(320), and guides the nuts into one side of a feed tube(400). The station is coupled to the other side of the feed tube, and discharges the nuts at regular intervals. The feeder arm has a finger coupled to the front of a finger cylinder. The finger grips the discharged nuts and places the nuts on a nut/panel welding machine(10).

Description

Nut Feeder {NUT FEEDER}

The present invention relates to a nut supply device for supplying a nut on a lower welding rod of a nut / panel welder installed on one side of a nut / panel welder, and more specifically, the nut selected by selecting the nut is supplied at a predetermined interval. It is to provide a nut feeder to securely seat the supplied nut on the lower welding rod.

In general, automobiles, airships, ships, etc. are composed of a very large number of parts, among them a panel consisting of a large body, a frame for supporting the panel and a number of devices attached to the panel, recently the panel Is fixedly coupled to the frame or attached to various devices on the inner surface of the panel has been proposed to improve the convenience and make the operation easier.

In other words, by fixing the nut in advance to the inner surface of the panel having a predetermined size by bolting the nut of the panel directly to the frame, or bolted to the various nuts directly to the panel nut. Therefore, according to the configuration of the panel as well as the assembly is very easy, the bolt is not exposed to the outer surface of the assembled panel.

As shown in FIG. 1, a conventional nut / panel welding machine for welding a nut to an inner position of the panel includes a main body to which a nut feeder is coupled, an upper welding rod that is lifted up and down on an upper side of the main body, and the main body of the main body. It consists of a lower welding rod fixed to the lower side and a mounting pin coupled to the upper end of the lower welding rod.

Therefore, the through hole of the panel is seated on the lower welding rod in the state fitted with the seating pin, and then the nut is seated on the upper side thereof, and then the upper welding rod is lowered to apply electricity while being in close contact with the nut and the panel to its resistance or arc. By welding the nut and the panel.

However, according to the conventional nut / panel welding machine, since the exact position is not achieved when the nut is supplied to the upper side in the state where the panel is seated on the lower welding rod, many defects and many malfunctions of the nut / panel welding machine are caused. As it occurs, there is a further demand for a technology that can improve the supply of nuts more safely and accurately.

The main object of the present invention devised to solve the problems and drawbacks of the prior art is provided on one side of the nut / panel welder to form a nut supply device for supplying the nut on the lower welding rod, the more smooth and stable supply of nut It is intended to provide a nut feeder for a nut / panel welder that is made.

1 is an overall view showing a nut supply device to which the present invention is applied.

Figure 2 is a perspective view of the guide portion of the nut supply apparatus to which the present invention is applied.

3 is a side cross-sectional view of FIG. 2;

Figure 4 is a full perspective view of the station and the feeder arm of the nut supply device to which the present invention is applied.

Figure 5 is a perspective view showing the main portion of the station and the feeder arm of the nut supply device to which the present invention is applied.

Figure 6 is a plan view showing a state in which the feeder arm gripping the nut of the nut supply device to which the present invention is applied.

Figure 7 is a plan view showing a state in which the feeder arm of the nut feeder to which the present invention is advanced.

** Description of symbols for the main parts of the drawing **

10: nut / panel welding machine 20: main body

30: upper welding rod 40: lower welding rod

50: mounting pin N: nut

P: Panel 100: Separator

110: enclosure 120: guide rail

200: guide portion 210: nut guide

220: sensor 230, 240: front and rear cylinders

232, 242: front and rear nut stoppers 250: cylinder block

300: moving unit 310: guide rail

320: carrier block 322: receiving groove

330: cylinder 400: feed tube

500: station 510: fixture

520: plate 522: slide groove

530: stopper block 532: nut outlet

534: slide groove 536: guide ball

540: nut stopper 542: fixing groove

544: locking projection 550: elastic spring

600: feeder arm 610: shot cylinder

612: cylinder rod 614: shooting guide bar

620: finger block 630: finger cylinder

640: finger 642: seating groove

The present invention for achieving the above object is provided in the nut supply apparatus for supplying the nut on the lower welding rod is installed on one side of the nut / panel welder,

A sorter configured to sort the plurality of nuts stored inside the enclosure along the guide rails; A guide part coupled to the end of the guide rail and configured to load a predetermined number of nuts, the guide part configured to detect a nut loaded by a sensor and discharge the loaded nut by a predetermined distance from the front and rear stoppers; A moving part formed to guide the nut discharged at a predetermined interval from the guide part in the receiving groove of the carrier block by a rear cylinder to operate at a predetermined distance along the guide rail to one end of the transfer tube; A station coupled to the other end of the transfer tube and configured to discharge the nut transferred by vacuum suction at a predetermined interval by the operation of the stopper; And gripping a nut from which the finger coupled to the front end of the finger cylinder is discharged while being coupled to the transfer tube at a right angle to one side of the station, and operating the grip nut for a predetermined distance to the lower welding rod of the nut / panel welding machine. It consists of a feeder arm formed to be seated on the top.

At this time, the guide portion is a nut guide formed in a predetermined length so as to load a predetermined number of the nut selected in close proximity to the guide rail tip of the sorting machine; A sensor installed at a rear end of the nut guide and configured to detect a nut to be loaded; And the nut guide is coupled to the upper end of the front, the front and rear cylinders are coupled in a state spaced apart at a predetermined interval in the front and rear direction, the front and rear nut stoppers are respectively coupled to the lower end of the front and rear cylinders A cylinder block configured to discharge the loaded nut at a predetermined interval by the operation of the nut stopper; Is done.

In addition, the station is a fixture formed to secure the end of the transfer tube; Plates are formed in a plate shape to be coupled to the lower end of the fixture, the plate is formed so that the finger of the feeder arm through the opening in the state in which the slide groove in the transverse direction is formed at one side; It is coupled to be in close contact with the front end of the fixture, the nut discharge port is penetrated in relation to the bent portion of the conveying tube, a slide groove of a predetermined length is formed on one side of the nut outlet, the outer surface of the slide groove of a predetermined length A stopper block through which a guide hole is formed; And is coupled to the slide groove of the stopper block is formed to open and close the outlet, the rear end is formed with a fixing groove so as not to be separated by receiving the elastic spring, the outer surface protrudes through the guide hole to the outside A nut stopper integrally formed with a locking protrusion so as to interfere with the finger of the feeder arm and move backward; Is made of.

In addition, the feeder arm is a shot cylinder formed so that the front end of the shoot guide bar is coupled to the station fixed in the state that the shoot guide bar is coupled to accommodate a predetermined length of the cylinder rod; A finger cylinder coupled to a finger block coupled to a front end of the cylinder rod, and having a bidirectional cylinder formed at a predetermined distance therein; And a pair of fingers each rear end coupled to the front end of the bidirectional cylinder in a state partitioned on both sides so as to hold the nut, and having a nut seating groove formed therein; Is made of.

Hereinafter, a preferred embodiment of the present invention will be described in more detail with reference to the accompanying drawings.

1 is an overall view showing a nut supply device to which the present invention is applied, FIG. 2 is a perspective view showing a nut guide of a nut supply device to which the present invention is applied, FIG. 3 is a side cross-sectional view of FIG. The station and the feeder arm of the nut feeder to which the invention is applied are shown in perspective view, and FIG. 5 is the perspective view of the station and feeder arm of the nut feeder to which the present invention is applied.

The nut supply apparatus of the present invention, as shown in Figures 1 to 5, the sorter 100 for sorting the nut largely, the guide portion 200 for discharging a predetermined interval by loading the sorted nut, discharged from the guide The moving part 300 for transferring the nut to the conveying tube 400, the station 500 for supplying the nut conveyed from the conveying tube at a predetermined interval, and the nut supplied from the station are gripped to hold the nut / panel welding machine 10. It consists of a feeder arm (600) for seating on the top of the lower welding rod (40).

The sorter 100 is composed of a predetermined size of the housing 110, the top of which is opened to store a plurality of nuts (N), the inside of the housing 110 to the one side of the top while turning the inner surface from the bottom The guide rail 120 to be guided is formed. That is, the plurality of nuts (N) stored in the enclosure 110 is formed to be properly aligned or selected to meet the criteria while being raised along the guide rail 120 by the rotation and vibration of the enclosure (110).

The guide portion 200 is coupled to the end of the guide rail 120 of the sorter 100 is provided with a nut guide 210 of a predetermined length to load a predetermined number of the sorted nuts (N), the nut guide 210 ) Is inclined at an angle downward so that the sorted nut moves forward. In addition, the sensor 220 is coupled to both sides of the rear end of the nut guide 210 to detect the nut to be loaded, the sensor 220 is formed to check the nut passed as a photoelectric sensor. In addition, the upper side of the front end of the nut guide 210 is coupled to the cylinder block 250 coupled to the front and rear cylinders 230 and 240 spaced apart at regular intervals in the front and rear, and each of the front and rear cylinders 230 and 240 The front and rear nut stoppers 232 and 242 are respectively coupled to the ends of the nut guides 210 to protrude into the nut guide 210. That is, the front and rear cylinders 230 and 240 are formed at intervals that can accommodate only one nut N loaded therebetween, so that the front and rear cylinders 230 and 240 are operated by the front and rear cylinders 230 and 240. The rear nut stoppers 232 and 242 are formed to control the discharge of the loaded nut while entering and exiting from the cylinder block 250. At this time, the operation of the front and rear cylinders 230 and 240 for operating the front and rear nut stoppers 232 and 242 is formed to operate at a predetermined time (seconds) by a timer.

The moving part 300 is for supplying a nut (N) discharged at a predetermined interval from the guide part 200 to the transfer tube 400, the guide rail 310 in the transverse direction to the front end of the nut guide (210) Is formed, the carrier block 320 is formed with a receiving groove 322 to accommodate the nut discharged on the guide rail 310, the cylinder 330 is coupled to the rear end of the carrier block 320. Therefore, the carrier block 320 moves forward and backward along the guide rail 310 by the operation of the cylinder 330 to move the received nut to the inlet of the transfer tube 400.

On the other hand, the transfer tube 400 is for transferring the nut (N) selected from the separator 100 to the nut / panel welder 10 spaced a predetermined distance, the vacuum pump formed on one side of the transfer tube 400 It sucks the nut close to the inlet and discharges it to the other outlet.

The station 500 is formed to discharge the nut (N) coupled to the outlet of the transfer tube 400 is discharged at a predetermined interval in accordance with the operation of the feeder arm (600). That is, the station 500 is coupled to the rear end of the plate-shaped plate 520 in a state in which the fixture 510 is coupled to the end of the transfer tube 400, one side is opened in the center of the plate 520 Slide groove 522 in the direction is formed is formed so that the finger 640 of the feeder arm 600 through the opening.

In addition, a stopper block 530 and a nut stopper 540 for controlling the supply of the nut N are coupled to the front end of the fixture 510. That is, the stopper block 530 is passed through the nut outlet 532 in relation to the bent portion of the conveying tube 400 coupled to the fixture, the slide groove 534 of a predetermined length on one side of the nut outlet 532 It is formed, the guide hole 536 of a predetermined length is formed through the outer surface of the slide groove 534. At this time, the nut stopper 540 is formed to be forward and backward coupled to the slide groove 534 of the stopper block 530, the rear end is recessed to a predetermined depth so that the elastic spring 550 is coupled A fixing groove 542 is formed, a predetermined inclined surface is formed at the front end so as to slide with the nut, the outer surface of the finger of the feeder arm 600 in the state protruded out through the guide hole 536 A locking projection 544 that is bent to interfere with 640 is integrally formed.

In other words, the nut stopper 540 is the nut protrusion 532 of the stopper block 530 is opened, the feeder arm 600 is advanced as the locking projection 544 is reversed by the interference of the finger 640, the finger. At the same time as the interference of the 640 is released, the nut outlet 532 is closed while advancing by the elasticity of the elastic spring 550.

The feeder arm 600 has a shot cylinder 610 coupled to one side of the station 500, and a shot guide bar 614 to accommodate a cylinder rod 612 operated at a predetermined length in front of the shot cylinder 610. ) Is coupled to the front end of the shoot guide bar 614 is fixed to the plate (520). In addition, the finger cylinder 630 is coupled to the upper end of the cylinder rod 612 in the state in which the plate-shaped finger block 620 having a predetermined width is coupled, the bi-directional in front of the finger cylinder 630 Both ends of the bidirectional cylinder that is operated for a certain distance protrude. In addition, a pair of fingers 640 for holding the nut N are oppositely coupled to both ends of the finger cylinder 630, and the pair of opposed fingers 640 accommodate the nut therein. The mounting groove 642 is formed to be.

Accordingly, the feeder arm 600 is coupled to the finger cylinder 630 and the finger 640 by its operation while the shot cylinder 610 is fixed to the plate 520 in a direction perpendicular to the transfer tube 400. The finger block 620 is moved forward and backward by a predetermined distance, the pair of fingers 640 coupled to the upper end of the finger block 620 is operated at regular intervals to both sides by the operation of the finger cylinder 630 while the nut (N) G) or gripping nut (N) is seated on top of the lower welding rod 40 of the nut / panel welder (10).

Hereinafter, the action of the nut supply device to which the present invention is applied will be described in detail with reference to the accompanying drawings.

FIG. 6 is a plan view showing a state in which the feeder arm of the nut supply device to which the present invention is applied holds a nut, and FIG. 7 is a plan view showing a state in which the feeder arm of the nut supply device to which the present invention is applied is advanced.

According to the nut supply device of the present invention as described above, the sorting and supply of the nut (N) is performed automatically, and it is possible to more safely rest on the lower welding rod 40 of the nut / panel welder (10).

That is, in the state in which a plurality of nuts (N) is stored in the enclosure 110 of the sorter 100, the nut stored at the same time as the rotation of the enclosure 110 is moved along the guide rail 120. At this time, the sorter 100 is guided to the guide unit 200 in an aligned state while vibrating by the operation of the vibrator.

Subsequently, the sorted nut N is loaded into the nut guide 210 coupled to the end of the guide rail 120, and at the same time, passes through the sensors 220 coupled to both rear ends of the nut guide 210. Detect the loaded nut.

The nut (N) loaded in the nut guide 210 operates the front and rear nut stoppers 232 and 242 at regular intervals by operating the front and rear cylinders 230 and 240 coupled to the upper end thereof. When the nut stopper 232 of the first front cuts off the best nut N, the rear nut stopper 242 presses the lane nut N-1. Therefore, the front nut stopper 232 is operated by the front cylinder 230 to discharge the best nut N, and then closes the inlet again, and the rear nut stopper 242 is the rear cylinder ( 240 is operated to press the next lane nut (N-2) in a state in which the lane (N-1) of the lane is advanced and caught by the front nut stopper (232).

The nut N discharged at a predetermined interval from the guide part 200 by such an operation is transported along the guide rail 310 in the transverse direction in a state accommodated in the carrier block 320 of the moving part 300. Located at the front end of the, and at the same time transported to the station 500 coupled to the other side by the vacuum adsorption of the transfer tube (400).

At this time, the station 500 is a nut stopper 540 coupled to the inside of the stopper block 530 as shown in Figure 7 is advanced by the operation of the elastic spring 550, the nut outlet 532 Will be blocked.

Subsequently, as shown in FIG. 6, the shot cylinder 610 is operated to reverse the finger 640 to the slide groove 522 of the plate 520, and at the same time, the finger 640 of the nut stopper 540. When the nut outlet 532 of the stopper block 530 is opened by interfering with the locking protrusion 544, the nut N transferred therein is discharged and is seated in the seating groove 642 of the finger 640.

In this state, when the shot cylinder 610 operates and moves forward, as shown in FIG. 7, the nut stopper 540 is advanced by the operation of the elastic spring 550 and the nut outlet of the stopper block 530 ( 532 is blocked, and the finger 640 advanced by the operation of the shot cylinder 610 is stopped in proximity to the lower welding rod 40 of the nut / panel welder 10.

Subsequently, when the finger 640 is opened while the finger cylinder 630 is operated to both sides, the nut N seated in the seating groove 642 therein falls and is precisely mounted on the seating pin 50 on the panel P. It is seated.

Such a series of operations are performed at the same interval by the operation of each cylinder and nut stopper, so that the supply, discharge, and seating of the nuts N are not only performed very smoothly, but also the operation of the feeder arm 600. As a result, the finger 640 accurately falls to the seating point of the nut, thereby greatly improving stability.

As described above, the present invention has been described with reference to the embodiments illustrated in the drawings, but this is merely exemplary and will be understood by those skilled in the art that various modifications and equivalent other embodiments are possible. will be. Therefore, the true technical protection scope of the present invention will be defined by the technical spirit of the appended claims.

According to the nut supply apparatus of the present invention as described above, not only smooth and stable supply of the nut is achieved by the organic action and operation of each component, but also the nut supplied by the interaction of the station and the feeder arm more accurately. A very useful effect that can be seated on the lower welding rod is exerted.

Furthermore, according to the nut supply apparatus of the present invention, a very useful effect can be obtained by preventing the defect of the product and at the same time preventing the malfunction of the nut / panel welder to achieve more improved work.

Claims (4)

In the nut feeder for supplying the nut on the lower welding rod is installed on one side of the nut / panel welder, A sorter configured to sort the plurality of nuts stored inside the enclosure along the guide rails; A guide part coupled to the end of the guide rail and configured to load a predetermined number of nuts, the guide part configured to detect a nut loaded by a sensor and discharge the loaded nut by a predetermined distance from the front and rear stoppers; A moving part formed to guide the nut discharged at a predetermined interval from the guide part in the receiving groove of the carrier block by a rear cylinder to operate at a predetermined distance along the guide rail to one end of the transfer tube; A station coupled to the other end of the transfer tube and configured to discharge the nut transferred by vacuum suction at a predetermined interval by the operation of the stopper; And While the nut coupled to the front end of the finger cylinder is discharged while being coupled to the transfer tube at a right angle to one side of the station, at the same time, the nut is operated by a predetermined distance and the upper end of the lower welding rod of the nut / panel welder. Feeder arm formed to seat on; Nut supply device characterized in that consisting of. According to claim 1, wherein the guide portion is a nut guide formed in a predetermined length to load a predetermined number of the selected nut in close proximity to the tip of the guide rail of the sorting machine; A sensor installed at a rear end of the nut guide and configured to detect a nut to be loaded; And The front and rear cylinders are coupled to the upper end of the nut guide, spaced apart at a predetermined interval in the front and rear directions, and the front and rear nut stoppers are respectively coupled to the lower ends of the front and rear cylinders. A cylinder block configured to discharge the nut loaded by the stopper at a predetermined interval; Nut feeder characterized in that consisting of. The apparatus of claim 1, wherein the station comprises: a fixture configured to fix an end of the transfer tube; Plates are formed in a plate shape to be coupled to the lower end of the fastener, the plate is formed so that the finger of the feeder arm enters and exits through the opening in a state in which a horizontal slide groove is formed at one side; It is coupled to be in close contact with the front end of the fixture, the nut discharge port is penetrated in relation to the bent portion of the conveying tube, a slide groove of a predetermined length is formed on one side of the discharge port, the guide of a predetermined length on the outer surface of the slide groove A stopper block through which a ball is formed; And Is coupled to the slide groove of the stopper block is formed to open and close the outlet, the rear end is formed with a fixing groove so as not to be separated by receiving the elastic spring, the outer surface protrudes out through the guide hole A nut stopper integrally formed with a locking protrusion to reverse the interference of the finger of the feeder arm; Nut feeder characterized in that consisting of. According to claim 3, wherein the feeder arm is a shot cylinder formed so that the front end of the shoot guide bar is coupled to the station fixed in the state that the shoot guide bar is coupled to accommodate a predetermined length of the cylinder rod; A finger cylinder coupled to a finger block coupled to a front end of the cylinder rod, and having a bidirectional cylinder formed at a predetermined distance therein; And Each rear end is coupled to the front end of the bidirectional cylinder in a state partitioned on both sides to hold the nut, the opposite inner surface of the pair of fingers formed with a nut seating groove; Nut feeder characterized in that consisting of.