KR102602722B1 - Welding Tip Supply Cartridge - Google Patents

Abstract

The present invention relates to a tip supply cartridge that is installed on the upper part of a welding contact tip changer for changing the contact tip of a welding torch and sequentially supplies contact tips to the welding contact tip changer, wherein the contact tip (3) is aligned in a vertical direction. A cartridge body ( 910); A pusher 920 that is mounted on the rear of the cartridge body 910 and pushes the contact tip 3 loaded inside the loading space 911 toward the front end of the cartridge body 910; And, the contact tip 3, which is mounted vertically on the upper part of the front end of the cartridge body 910 and is located at the front end of the loading space 911 while repeating expansion and contraction in the vertical direction, is connected to the outlet 912. It is characterized in that it includes a tip discharge cylinder 930 that is discharged through ) and supplied to the contact tip changer for welding.

Description

Tip supply cartridge {Welding Tip Supply Cartridge}

The present invention relates to a tip supply cartridge that is installed on the upper part of a welding contact tip changer for changing the contact tip of a welding torch and automatically supplies contact tips sequentially to the welding contact tip changer.

Welding refers to joining separate metal materials by applying heat or pressure, or heat and pressure at the same time. It is largely divided into fusion welding and pressure welding. In general, welding in a narrow sense involves heat. It is interpreted to mean welding.

This welding is performed by supplying consumable welding wire at a constant speed and applying a predetermined current to generate an arc between the welding wire and the base material.

At this time, welding is sometimes done with the supply of inert gases such as carbon dioxide, hydrogen, nitrogen, helium, and argon. The inert gas blocks contact between the molten metal and the atmosphere to prevent oxidation or nitridation, and prevents bubbles during melting. This prevents the deterioration of the bonding strength caused by welding.

Figure 1 shows a cross-sectional view of a welding torch used in conventional welding, which includes an insulator (1), a gas diffuser (2) screwed to the insulator (1), and a contact tip (3) screwed to the gas diffuser (2). ), the welding nozzle (4) that is coupled to the insulator (1) and surrounds the gas diffuser (2) and the contact tip (3), and the welding wire (W) supplied through the gas diffuser (2) and the contact tip (3). It consists of:

When welding is performed for a long time using such a welding torch, a large amount of spatter generated during welding is attached to the inner/outer peripheral surface of the contact tip (3) and the inner peripheral surface of the welding nozzle (4). The spatter is scattered during welding. This refers to slag or metal grains that scatter and stick to the surrounding contact tip (3) and welding nozzle (4), melting or abrading them and not only greatly reducing the service life, but also making welding difficult or damaging the weld area. It also makes it dirty and reduces the weight of the welded metal.

In addition, if a large amount of spatter adheres to the contact tip and welding nozzle, it must be removed by scraping off the spatter with a tool or blowing with compressed air to clean it. In particular, the contact tip is not only prone to spatter but also to the welding area. Since it comes into direct contact with the tip, it must be replaced with a new one depending on the welding time. However, there is a disadvantage in that welding efficiency decreases as it takes time to replace the contact tip.

To solve this problem, Patent No. 10-1412330 (see FIG. 2) discloses a welding tip exchange device, a welding tip exchange system, and a welding tip exchange method, including a cylindrical tip connection body, and It has a cylindrical gripping member fitted on the outside of the tip connection body and a cylindrical welding tip fitted on the inside of the tip connection body. When the gripping member is displaced toward the proximal end in the axial direction, the tip is connected. It is used in a welding torch to release the fixation of the welding tip fixed in the axial direction with respect to the body, and includes a first gripping mechanism for gripping the gripping member, and the welding device protruding toward the distal end from the gripping member. It is configured to include a second gripping mechanism for gripping the tip, a first driving mechanism for driving the first gripping mechanism in the axial direction, and a second driving mechanism for driving the second gripping mechanism in the axial direction. .

However, although this prior art is useful for a welding torch (gun) equipped with a gripping member that is displaced by a sliding motion, there is a problem in that it cannot be applied to the method in which the contact tip is screwed to the gas diffuser.

To solve this problem, Registered Patent No. 10-1988822 (see FIG. 3) was proposed, which includes an insulator, a gas diffuser screwed to the inner peripheral surface of the insulator, a contact tip screwed to the gas diffuser, and an outer peripheral surface of the insulator. A welding contact tip changer for changing the contact tip of a welding torch including a screw-coupled welding nozzle, comprising: a drive unit (100) including a motor capable of forward and reverse rotation; A tip separation unit 200 that is driven by receiving a rotational force from the driving unit and removes the contact tip screwed to the gas diffuser by rotating it in reverse. And a tip mounting part 300 that is driven by receiving a rotational force from the driving part and screws onto the gas diffuser by rotating the provided contact tip forward, wherein the tip mounting part is mounted on a lower flange and upward on the lower flange. A lower holder 310 provided with a protruding lower shaft; A bearing 320 installed on the outer peripheral surface of the lower shaft of the lower holder; A driven gear 330 installed on the outer ring of the bearing; An upper holder ( 340); And a plurality of spacers 350 installed between the driven gear and the upper flange of the upper holder.

However, in the case of this contact tip changer for welding, although it was possible to solve the problems of the prior art, it is necessary to continuously supply contact tips to the tip mounting part 300, and a means for stably and automatically supplying contact tips to the tip mounting part 300 at regular intervals is provided. There was a problem that productivity improvement was limited due to the lack of this equipment.

[Prior art literature]

Registered Patent No. 10-1412330

Registered Patent No. 10-1988822

The purpose of the present invention, which was created to solve the above problems, is to dramatically improve productivity by providing a means for stably and automatically supplying contact tips to the tip mounting portion 300 of a welding contact tip changer at regular intervals. .

The technical structure of the present invention created to achieve the above purpose is as follows.

The present invention relates to a tip supply cartridge that is installed on the upper part of a welding contact tip changer for changing the contact tip of a welding torch and sequentially supplies contact tips to the welding contact tip changer, wherein the contact tip (3) is aligned in a vertical direction. A cartridge body ( 910); A pusher 920 that is mounted on the rear of the cartridge body 910 and pushes the contact tip 3 loaded inside the loading space 911 toward the front end of the cartridge body 910; And, the contact tip 3, which is mounted vertically on the upper part of the front end of the cartridge body 910 and is located at the front end of the loading space 911 while repeating expansion and contraction in the vertical direction, is connected to the outlet 912. It is characterized in that it includes a tip discharge cylinder 930 that is discharged through ) and supplied to the contact tip changer for welding.

The technical effects of the configuration of the present invention are as follows.

First, productivity can be dramatically improved by automatically and stably supplying contact tips to the tip mounting portion 300 of the welding contact tip changer at regular intervals.

Second, by using a rectangular-shaped carton box 950 in which a plurality of contact tips 3 are stored in a vertical direction and arranged side by side, the carton box 950 is placed in the loading space of the cartridge body 910 at the work site. By installing them in (911), multiple contact tips (3) can be loaded quickly in one operation.

Third, one end side of the carton box 950 has a structure that can be opened and closed, and serves as an entrance for inserting the contact tip 3 and a passage for the pusher 920 to enter, and each of the lower and upper surfaces of the other end has contacts. A pre-drilled hole 951 and an incision line 952 in a shape corresponding to the contact tip 3 are provided at a position corresponding to the outlet 912 of the cartridge body 910 through which the tip 3 is discharged, forming a carton box ( With a plurality of contact tips 3 loaded in 950), the contact tips 3 can be automatically ejected, thereby maximizing the convenience of work.

Figure 1 shows the cross-sectional structure of a general welding torch used for welding.
2 and 3 exemplarily show a conventional contact tip changer for welding.
Figure 4 shows the overall structure of a specific embodiment of the present invention applied to a contact tip changer for welding.
Figure 5 shows a cross-sectional structure of a specific embodiment of the present invention applied to a contact tip changer for welding, with the cartridge body 910 moved forward.
Figure 6 shows a cross-sectional structure of a specific embodiment of the present invention applied to a contact tip changer for welding, with the cartridge body 910 moved rearward.
Figure 7 shows the structure of the cartridge body 910 and the pusher 920.
Figure 8 shows a specific embodiment of the carton box 950.

Hereinafter, specific embodiments of the present invention will be described in more detail with reference to the accompanying drawings.

The present invention relates to a tip supply cartridge that is installed on the upper part of a welding contact tip changer for changing the contact tip of a welding torch and sequentially supplies contact tips to the welding contact tip changer. The welding contact tip changer is a registered patent. As disclosed in No. 10-1988822, the structure must be capable of receiving a contact tip standing vertically, and a support structure for installing the present invention can be appropriately added to the upper part of this welding contact tip change. , a specific embodiment in which the present invention is installed on the upper part of a welding contact tip changer is exemplarily shown in Figure 4.

As shown in Figures 4 to 8, the present invention includes a cartridge body 910, a pusher 920, a tip ejection cylinder 930, a cartridge movement cylinder 940, and a carton box 950.

As shown in Figures 4 and 5, the cartridge body 910 is provided with a loading space 911 in which a plurality of contact tips 3 are stacked in a vertical direction.

An outlet 912 is provided at the bottom of the front end of the loading space 911 for supplying the contact tip 3 to the welding contact tip changer.

The tip ejection cylinder 930 is mounted vertically on the upper part of the front end of the cartridge body 910, and repeats expansion and contraction in the vertical direction to remove the contact tip 3 located at the front end of the loading space 911. It discharges to the bottom through the discharge port 912 and supplies it to a contact tip changer for welding.

That is, when the tip discharge cylinder 930 is extended, the piston rod moves downward and enters the loading space 911 of the cartridge body 910 to push the contact tip 3 downward, and opens the discharge port 912. The contact tip 3 that passes through and is discharged to the outside of the loading space 911 of the cartridge body 910 is loaded by entering and being seated in the tip mounting portion of the welding contact tip changer located below it.

A pressing jig 931 may be attached to the piston rod of this tip discharge cylinder 930, as shown in Figure 5, so that the pressing jig 931 is in contact with the contact tip 3, and is shown separately in the accompanying drawings. Although not done, the piston rod may be in direct contact with the contact tip (3).

The pusher 920 is mounted at the rear of the cartridge body 910 and serves to push the contact tip 3 loaded inside the loading space 911 toward the front end of the cartridge body 910.

As shown in Figures 4 and 5, the pusher 920 includes a first slider 921, a spring mounting shaft 923, a second slider 922, a spring 924, and a movable cover 925. do.

The first slider 921 is elastically supported toward the front inside the loading space 911 and directly contacts the contact tip 3 to push the contact tip 3 forward.

The spring mounting shaft 923 is coupled to the first slider 921 and extends rearward, penetrating the rear end of the cartridge body 910 and protruding outward.

The second slider 922 is coupled to the rear end of the spring-mounted shaft 923 and moves together with the first slider 921.

That is, when the second slider 922 is pulled rearward, the first slider 921, which is connected as one through the spring mounting shaft 923, also moves rearward.

The spring 924 is coupled to be inserted into the spring mounting shaft 923 and is located between the rear end of the cartridge body 910 and the first slider 921, and serves to elastically support the first slider 921 forward. do.

That is, when the second slider 922 is pulled rearward and a plurality of contact tips 3 are loaded inside the loading space 911 of the cartridge body 910 and the second slider 922 is released, the spring 924 ), the first slider 921 moves forward and comes into contact with the contact tip 3, continuously pushing the contact tip 3 forward.

As shown in FIGS. 4 and 5, the movable cover 925 is coupled to the upper part of the second slider 922, protrudes forward, enters the interior of the cartridge body 910, and moves together with the second slider 922. .

The movable cover 925 is inserted into the guide groove 913 formed in a horizontal direction along the upper part of the loading space 911 of the cartridge body 910 and moves forward while moving together with the first slider 921 and the second slider 922. When moving, it covers the upper part of the loading space (911).

That is, when the second slider (922) is pulled rearward, the movable cover (925) also moves rearward, opening the upper part of the loading space (911) of the cartridge body (910), allowing the contact tip (3) to be loaded. do.

The cartridge moving cylinder 940 is mounted in a horizontal direction parallel to the cartridge body 910 as shown in Figures 4, 6, and 7, and moves the cartridge body 910 forward and backward while repeating expansion and contraction in the horizontal direction. It plays a commanding role. In addition, for smooth movement of the cartridge body 910, cartridge body guides 914 may be provided on both left and right sides of the cartridge body 910, as shown in FIG. 4.

In other words, as shown in Figure 6, when the cartridge body 910 moves forward by the cartridge moving cylinder 940, the discharge port 912 of the cartridge body 910 is located at the upper part of the tip mounting portion of the welding contact tip changer, and the tip When the discharge cylinder 930 is extended, the piston rod moves downward and enters the loading space 911 of the cartridge body 910, and when the contact tip 3 is pushed downward, the contact tip is discharged through the discharge port 912. (3) is accurately supplied to the tip attachment part of the contact tip changer.

That is, when the cartridge moving cylinder 940 moves the cartridge body 910 forward, the discharge port 912 of the cartridge body 910 is accurately located at the top of the tip mounting portion of the contact tip changer.

In this state, after the contact tip (3) discharged through the discharge port (912) by the tip discharge cylinder (930) is accurately supplied to the tip mounting part of the contact tip changer for welding, the cartridge moving cylinder as shown in Figure 7 By (940), the cartridge body 910 moves backwards and returns to the initial position, and the welding torch moves to the corresponding position, allowing the contact tip 3 to be replaced. The contents related to the replacement of the contact tip (3) (including removal and installation, welding nozzle cleaning, welding wire cutting, etc.) must be done in the same or extremely similar manner as the contents described in the already registered Patent No. 10-1988822. do.

The carton box 950 is a box in the shape of a rectangular parallelepiped in which a plurality of contact tips 3 are placed vertically and arranged side by side, as shown in FIG. 8 .

One end side of the carton box 950 has a structure that can be opened and closed, and serves as an entrance into which the contact tip 3 is inserted and a passage through which the pusher 920 enters.

That is, a plurality of contact tips 3 can be supplied to the site in advance stored in the carton box 950.

When the second slider (922) is pulled rearward and the top of the loading space (911) of the cartridge body (910) is opened, one end side of the carton box (950) is opened and pushed into the loading space (911), multiple contacts are made. The tip 3 can be quickly loaded in one operation, and the first slider 921 of the pusher 920 is stored inside the carton box 950 through one open end side of the carton box 950. The contact tip (3) is elastically supported forward to enable sequential supply of the contact tip (3).

On each of the lower and upper surfaces of the other end of the carton box 950, there is a hole 951 pre-drilled in a shape corresponding to the contact tip 3 at a position corresponding to the outlet 912 through which the contact tip 3 is discharged. An incision line 952 is provided.

Therefore, when the tip ejection cylinder 930 is extended, the piston rod moves downward and enters the loading space 911 of the cartridge body 910, forming a pre-drilled hole 951 and a cut line on the upper surface of the carton box 950. (952) is folded inward and opens as the press jig (931) descends, becoming a passage for the press jig (931) to ascend and descend, and a hole (951) and a cut line (952) previously drilled in the lower surface of the carton box (950). is folded outward and opened by the contact tip 3, which is pushed down by the pressing jig 931, and becomes a discharge passage of the contact tip 3.

When the contact tip (3) located at the front end of the carton box (950) is discharged, the first slider (921) continuously pushes the contact tip (3) against the front end of the carton box (950) under the action of the spring (924). This allows continuous (sequential) supply.

When the supply (discharge) of the plurality of contact tips (3) stored inside the carton box (950) is completed, the second slider (922) is pulled rearward and the exhausted carton box (950) is replaced with a new one filled with contact tips (3). Just replace it with a carton box (950).

As described above, the technical idea of the present invention has been described with reference to the accompanying drawings, but the scope of protection of the present invention is not necessarily limited to these embodiments, and various design changes and notices may be made without changing the technical gist of the present invention. It is clear that addition or deletion of technology, simple numerical limitation, etc. fall within the scope of protection of the present invention.

910: Cartridge body
911: Loading space
912: outlet
913:Guide Home
914:Cartridge body guide
920:Pusher
921: 1st slider
922: Second slider
923: Spring mounting shaft
924:Spring
925: Removable cover
930: Cylinder for tip discharge
931: Press jig
940: Cylinder for cartridge movement
950:Carton box
951:hole
952: Incision line

Claims (5)

It relates to a tip supply cartridge that is installed on the upper part of a welding contact tip changer for changing the contact tip of a welding torch and sequentially supplies contact tips to the welding contact tip changer,
A loading space 911 is provided in which a large number of contact tips 3 are stacked in a vertical position. At the bottom of the front end of the loading space 911 is an outlet for supplying contact tips 3 to a contact tip changer for welding. A cartridge body (910) provided with (912);
A pusher 920 that is mounted on the rear of the cartridge body 910 and pushes the contact tip 3 loaded inside the loading space 911 toward the front end of the cartridge body 910;
The contact tip 3, which is mounted vertically on the upper part of the front end of the cartridge body 910 and is located at the front end of the loading space 911 while repeating expansion and contraction in the vertical direction, is connected to the outlet 912. A tip discharge cylinder (930) that is discharged through and supplied to a contact tip changer for welding; and,
It is a box in the shape of a rectangular parallelepiped in which a plurality of contact tips (3) are stored vertically and arranged in a row. One end side has a structure that can be opened and closed, and serves as an entrance for inserting the contact tips (3) and the pusher (920). ) serves as a passage for entering, and on each of the lower and upper surfaces of the other end, a hole is pre-drilled in a shape corresponding to the contact tip (3) at a position corresponding to the outlet (912) through which the contact tip (3) is discharged. A carton box (950) provided with (951) and a cut line (952);
Including,
The pusher 920 is,
A first slider (921) directly in contact with the contact tip (3);
A spring mounting shaft 923 that is coupled to the first slider 921, extends rearward, and protrudes outward through the rear end of the cartridge body 910;
A second slider (922) coupled to the rear end of the spring mounting shaft (923); and,
A spring 924 is coupled to be inserted into the spring mounting shaft 923 and is located between the rear end of the cartridge body 910 and the first slider 921 and elastically supports the first slider 921 forward. );
A tip supply cartridge comprising: In paragraph 1:
A cartridge moving cylinder 940 that is mounted horizontally parallel to the cartridge body 910 and moves the cartridge body 910 forward and backward while repeating expansion and contraction in the horizontal direction;
It further includes,
When the cartridge body 910 moves forward by the cartridge moving cylinder 940, the outlet 912 is located at the top of the tip mounting portion of the contact tip changer for welding,
When the contact tip 3 discharged through the discharge port 912 by the tip discharge cylinder 930 is accurately supplied to the tip mounting portion of the contact tip changer for welding, the cartridge body is moved by the cartridge movement cylinder 940. A tip supply cartridge, characterized in that (910) moves backwards and returns to its initial position. In paragraph 1 or 2:
A guide groove 913 is coupled to the upper part of the second slider 922, protrudes forward and enters the interior of the cartridge body 910, and is formed in a horizontal direction along the upper part of the loading space 911 of the cartridge body 910. ) a movable cover 925 that is inserted into the first slider 921 and the second slider 922 and covers the upper part of the loading space 911 when moving forward;
A tip supply cartridge further comprising:
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