JPS60115373A - Automatic welding device of small parts to channel steel - Google Patents

Abstract

PURPOSE:To automate all operations, and to improve operability and productivity by separating a combined member into two pieces of channel steel, inverting it, and thereafter, executing a regular welding of small parts through its tack welding, when welding the small parts to the surface of the combined member of the channel steel. CONSTITUTION:Combined parts to which an opening of channel steel is bitten up and down are placed on a lifting placing base 2, fed to an inverting device 4 through a holding and carrying device 3, and the channel steel whose opening is turned upward in the combined parts is received and inverted upside down. As a result, the channel steel which has been broken up in a state that the opening is in a flat position is carried by a roller conveyor 18, and clamped by a clamp device 5 of its final end part. Small parts to be welded are fed to a feed position (i) by a feeding device 8, rotated and moved to a clamp position (ii) of the channel steel by being grasped by a parts holding device 9, and welded temporarily to the surface of the channel steel by a tack welding machine 10. Subsequently, the small parts are welded regularly by a regular welding device 10 of the downstream side from the clamp device 5.

Description

[Detailed Description of the Invention] (Technical Field) The present invention relates to an automatic welding device for small parts to channel steel.
More specifically, it relates to a technique in which small parts are welded to the channel steels, which are stacked compactly by interlocking the channel steel opening upward with the channel steel opening downward, and are sent out one by one in a constant posture in a constant posture.

(Background technology) Conventionally, in order to weld small parts to each of the channel steels that are stacked compactly by interlocking the channel steel that opens upward and the channel steel that opens downward, it is necessary to manually disassemble the interlocking channel steel. This is then brought into a welding machine and small parts are welded, which poses the problem of low productivity despite the large amount of labor required.

(Object of the invention) The present invention has been made in view of these problems.
The purpose is to automatically weld small parts to groove steel that is stacked compactly, which can save labor and greatly increase productivity. The goal is to provide equipment.

(Disclosure of the Invention) The present invention provides a pair of channel steel (+1+) with an opening facing upward and a channel steel (+1) with an opening facing downward.
) (1), a holding and conveying device (3) for holding and conveying each of the pair of groove steel +1+ (1), and the upward-facing of the pair of groove steel +1+ (1). or a reversing device (4) that receives the channel steel +1+ in any direction facing downward and turns it upside down, and a conveyance device (6) that transports the channel steel f1+ in a constant posture to the clamp device (5); A parts supply device (8) that supplies small parts (7) to the groove type 1'ft) clamped by the clamp device (6), and a parts holding device that holds the small parts (7) against the groove type steel +1). (9), a welding machine (10) for welding the held small parts (7) to the channel steel (1), and a carry-out device (river) for carrying out the welded product. The present invention relates to an automatic welding device for small parts, and by configuring it in this way, the above object can be achieved.

Embodiments of the present invention will be described in detail below with reference to the drawings.

The elevating and lowering platform (2) is like a lifter, and has a pair of groove-shaped steel m (1) in which a groove-shaped steel (1) with an opening facing upward engages a groove-shaped steel (1) with an opening facing downward. It is designed so that a large number of (1) can be mounted and lifted up and down. The holding and conveying device (3) is like a lifting mucknet,
The guide rail (+2) is made to be freely driven and run relative to the guide rail (+2), and is made up of a pair of interlocking groove-shaped steel (11) so that each of the 11 pieces can be magnetically attached and held and conveyed. (4) is designed so that it can receive only the upward-facing channel steel fl+ whose opening faces upwards among the channel steel i1 (1) conveyed by the holding and conveying device (3) and turn it upside down. To do this, L-shaped receiving plates 04) are attached to the rotating shaft θ3) at appropriate intervals, and the rotating shaft θ field is made to be freely rotatable in the forward and reverse directions by a rotating part such as the t-yel.
The free end side of the receiving conveyor (0) is configured to be rotatable so that it can be raised and lowered by the lifting cylinder, and the holding and conveying device (3)
Only the upward channel steel +11 held by the receiving plate (14I
...The groove steel (1) facing upward can be turned upside down by the rotation of the rotating shaft 03) and delivered upside down onto the receiving conveyor θη, that is, with the opening facing downward. That's how it is. At the terminal end of the receiving conveyor θη, a D-Ra conveyor (18) as an example of the conveying device (6) is provided so as to be rotatable. A clamp device (5) is provided at the end 41 of the O-ra conveyor θ8). The clamping device (5) has a presser plate (+9) that can be raised and lowered to clamp the downward channel steel (1) conveyed by the roller conveyor (+8). A parts supply device (8) for supplying small parts (7) is provided in the middle of the 0-ra conveyor (18).

A component holding device (9) is provided that can reciprocate and rotate between the component supply position (1) of the component supply device (8) and the crushing position (11) of the clamping device (5). Grip the small part (7) at the supply position (1), move it to the clamp position (11), and release the small part (
7) can be pressed against the clamped channel steel (1). Specifically, an arm (21) is attached to the rotating vertical shaft, a gripper (22) is attached to the arm (21) so that it can be raised and lowered, and the gripper (22) is configured to be driven to open and close. It is. Above the clamp device (5) is a welding machine (with a torch (not shown) that can be raised and lowered freely).
For tacking as 1o), a machine (23) is installed, and a lowered torch is used to attach the small parts (7) to the downward grooved steel fi+
It is designed so that it can be tack-attached to the top surface by melting. A welding machine (main welding machine (24) as +01) is arranged downstream of the clamping device (6) in the conveying direction,
The main welding machine (24) of the welding robot can perform main welding of the small parts (7) temporarily attached to the channel steel (1). After the main welding, the welded products are transferred onto a conveyor (:J!'il) that serves as an unloading device (ll) that is one step lower than the 0-ra conveyor θ Enoki, and is transferred to the loading section (26 ).There are various types of small parts (7) as shown in Figure 3, and the mounting position on the channel steel (1+) can be changed in various ways. The small parts (7) include those that locally reinforce the channel steel fl'l, those that have bolt holes or screw holes, and those that are like pins.

(Effects of the Invention) In summary, the present invention holds and transports each tree from a group of channel steels placed interlockingly on an elevating loading platform, and among these being transported, one of the trees facing toward the ground or downward. One of them is turned upside down, the channel steel is clamped in a fixed position, small parts are supplied to it, and the small parts are welded to the channel steel, so that it is placed in a fixed position relative to the compactly stacked channel steel. Small parts can be automatically welded to
We were able to save labor and significantly increase productivity.

[Brief explanation of the drawing]

FIG. 1 is a partially omitted perspective view of one embodiment of the present invention, and FIG.
The figures are explanatory diagrams showing the same procedure as above, Figures 3(a)(b)(C
,) are perspective views of other embodiments of small parts, (+) is a channel steel, (2) is a lifting and lowering platform, (3) is a holding and conveying device,
(4) is a reversing device, (6) is a clamping device, (6) is a conveyance device, (7) is a small part, (8) is a parts supply device, (
9) is a component holding device, flO) is a welding machine, and (11) is a carry-out device. Agent Patent Attorney Ishi 1) Choshichi

Claims (1)

[Scope of Claims] +l) A lifting platform on which a pair of channel steels is placed, in which a channel steel whose opening faces upward engages a channel steel whose opening faces downward, and each of the pair of channel steels. a holding and conveying device that holds and conveys the channel steel, an inversion device that receives the channel steel that is facing upward or downward among the pair of channel steel and turns it upside down, and a device that transports the channel steel in a fixed posture to a clamping device. a parts feeding device that supplies small parts to the channel steel clamped by the clamping device; a component holding device that presses and holds the small parts against the channel steel; and a parts holding device that holds the small parts against the channel steel, and welds the held small parts to the channel steel. 1. An automatic welding device for small parts on channel steel, characterized by comprising a welding machine for welding, and a carry-out device for carrying out welded products. (2) An automatic welding device for welding small parts to channel steel according to claim 1, characterized in that the welding machine comprises a tack welding machine and a main welding machine.