JPH0584478U - Simple jig using spot welder - Google Patents

Abstract

(57) [Abstract] [Purpose] The present invention is to perform a welding operation by supporting a jig on a lower electrode of a spot welding machine by a holder.
Efficient and easy production without defects. [Structure] Mounting hole 9 in lower electrode 1 of spot welder
And the jig holder 7 is attached, and the jig holder 7 is attached.
The elevating guide 10 is erected on the upper side of the jig, and the jig 12 for aligning and supporting the main material 5 and the auxiliary material 6 to be welded to the guide 10, the welding point of the main material 5 and the auxiliary material 6 is the electrode core. Ask them to support you.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to an easy jig for use with a spot welding machine, in which a jig is supported on a lower electrode of a spot welding machine by a holder to perform a welding operation, so that work can be performed easily and efficiently and accurately.

[0002]

[Prior Art]

 In the welding of two members by a spot welding machine, in order to keep the relative positions of both members constant, the holes 29 and 30 are fitted to the guide pins 27 and 28 of the lower jig 26 as shown in FIG. The support member is placed on the bolt 31 to support the main member 32, and the locating pin 34 is fitted on the main member 32 to support the upper jig 35, and the receiving piece to which the magnet 36 of the upper jig 35 is attached. The auxiliary material 38 is adsorbed and supported by 37, the screw hole 39 is fitted into the guide pin 28 passing through the hole 30 of the main material 32, and the auxiliary material 38 is supported at a fixed position of the main material 32. 26 and the upper jig 35 are clamped, and these are held by hand as shown in FIG. 3, and the joining point of the main material 32 and the sub material 38 is placed on the lower electrode 40 and placed on the upper electrode 41. By lowering the welding point between the electrodes 40, 41 so that they pass through. Doing welding by.

However, since the above-mentioned hand-held jig cannot maintain a constant relational position between the jig and the lower electrode and is unstable, it causes misalignment or bending in welding, resulting in a defective product. If the welding work becomes uniform and the welding work with a heavy jig in hand is continued for a long time, the operator will be tired, resulting in a decrease in efficiency over time and there is a problem that stable production cannot be achieved.

[0004]

[Problems to be solved by the device]

 The problem to be solved by the present invention is that the hand-held welding jig is not stable because the relative position between the welding jig and the lower electrode is indefinite, which puts a heavy burden on the operator.

[0005]

[Means for Solving the Problems]

 The present invention fits a mounting hole to the lower electrode of a spot welding machine, attaches a jig holder, and an elevating guide is erected on the upper side of this jig holder, and the welding main body should be used for this guide. The problem is solved by a structure in which a jig that supports the auxiliary member and the auxiliary member is aligned so that the welding points of the main member and the auxiliary member are aligned with the electrode core.

[0006]

[Action]

 A simple jig using a spot welding machine according to the present invention is formed by forming a jig as shown in FIGS. 1 and 2 according to a main material and a sub material to be welded, and a sliding shaft of the jig. The jig is supported by the holder when it is engaged with the elevating guide installed upright on the jig holder.In this state, if the hole of the jig holder is fitted to the lower electrode of the spot welder, The jig is attached to the lower electrode by a holder to maintain a fixed relationship with the lower electrode, and the jig is stably supported by the lower electrode, eliminating the need for the operator to hold it in his hand.

Therefore, when the auxiliary material is supported by the auxiliary material supporting member of the jig and the main material is supported by the main material supporting member, the welding positions of the main material and the auxiliary material are aligned and Since it is supported, adjust the direction of the jig so that the welding point at the welding position matches the center of the lower and upper electrodes, fix the jig holder to the lower electrode, and then set the upper electrode to the main material. When the jig is lowered and the main material is pressed down, the jig descends along the elevating guide, the lower electrode is brought into contact with the lower electrode, and spot welding is performed at the welding point by energizing between both electrodes. Along with this, the upper electrode is raised, the welded main material and auxiliary material are removed, the auxiliary material and main material are supported by a jig, and the upper electrode is lowered to perform welding as described above. Repeatedly, a uniform product can be manufactured all day at a constant pace.

[0008]

【Example】

 An embodiment of a simple jig using a spot welding machine according to the present invention will be described below with reference to the drawings.

FIG. 1 is a perspective view showing a usage example of a simple jig using a spot welding machine. FIG. 2 is a perspective view of the jig and the main material and the auxiliary material supported by the jig.

In FIG. 1, 1 and 2 are a lower electrode and an upper electrode in a known spot welding machine (not shown). The lower electrode 1 is fixed and a collar 3 is fitted to the outside of the lower part thereof and a screw 4 is fixed. The upper electrode 2 is moved up and down by an elevating means (not shown), and the lower electrode 1 is energized with the main material 5 and the auxiliary material 6 sandwiched between them, so that both materials 5 and 6 can be energized. When spot welding is performed, it rises and returns.

In FIGS. 1 and 2, reference numeral 7 denotes a jig holder, which will be described later. A boss 8 is provided in the upper center of the boss 8 and a mounting hole 9 is formed in the boss 8. A pair of lifting guides are provided on both sides of the boss 8. The jig holder 7 is fitted with the mounting hole 9 to the collar 3 fitted to the lower electrode 1 so as to be supported by the lower electrode 1 and screwed to the boss 8. The jig holder 7 is rotatable with respect to the lower electrode 1 when the screw 11 is loosened, but is fixed when the screw 11 is tightened.

Reference numeral 12 is a jig for supporting the main material 5 and the auxiliary material 6 so that the joining positions are aligned with each other. The auxiliary material 6 has its screw holes 13 fitted to the guide pins 14 attached to the jig 12, The supporting member 15 is positioned on the receiving piece 15 to be positioned and supported by the jig 12, and the main material 5 has its holes 16, 17, 18 fitted in the guide pins 19, 20, 21 provided in the jig 12, The end portion is mounted on the bolt 22 to determine its position and to be supported by the jig 12. The jig 12 has a pair of sliding shafts 23, 23 attached to the lower side thereof, and these sliding shafts 23, 23 Is fitted to the elevating guides 10 and 10 provided on the jig holder 7 so that the welding points of the main material 5 and the auxiliary material 6 coincide with the centers of the lower electrode 1 and the upper electrode 2. The jig 12 is mounted on the sliding shafts 23, 23. The main material 5 is held in the raised position by 24 and 24, and when the main material 5 is pressed against the upper electrode 2, the main material 5 is moved down to bring the auxiliary material 6 into contact with the lower electrode 1.

The sliding shafts 23, 23 attached to the jig 12 and fitted to the elevating guides 10 and 10 as described above are attached to the jig 12 by an electrically insulating material 25 and are used for welding the lower electrode. 1 and the jig 11 are prevented from causing a short circuit current.

As shown in the above-mentioned embodiment, the jig 12 is supported on the jig holder 7, and the jig 12 is attached to the lower electrode 1 by the holder 7, and the jig 12 and the auxiliary material 6 are attached. After supporting the main material 5, the upper electrode 2 is lowered to hold down the main material 5, and the jig 12 is lowered to bring the auxiliary material 6 into contact with the lower electrode 1 to energize between the electrodes 1 and 2 Welded. As a result, since the relative position between the jig 12 and the lower electrode 1 is kept constant and the jig 12 is stable, the products are completely uniformized, the defective rate becomes 0, and the production efficiency is 30%. It was improved and the operator's fatigue was also slight.

[0015]

[Effect of the device]

 As described above, in the simple jig using the spot welding machine according to the present invention, the relative position between the lower electrode and the jig is constant, and the jig is stable, so that the product can be made completely uniform. The defect rate becomes 0, and since the jig is supported by the electrode and only the material is attached and detached, the work efficiency is significantly improved, the production is improved by about 30%, and the fatigue of the worker is also reduced. It has special effects such as securing stable production throughout the day.

[Brief description of drawings]

FIG. 1 is a front view showing an example of use of a simple jig using a spot welding machine according to the present invention.

FIG. 2 is a perspective view of the same jig and a main material and a sub material supported by the jig.

FIG. 3 is a front view showing an example of use of a conventional hand-held jig.

FIG. 4 is a perspective view of the above jig and a main material and a sub material supported by the jig.

[Explanation of symbols]

 1 Lower Electrode 2 Upper Electrode 5 Main Material 6 Secondary Material 7 Jig Holder 9 Mounting Hole 10 Lift Guide 12 Jig

Claims (1)

[Scope of utility model registration request] 1. A jig holder is fitted in a lower electrode of a spot welding machine by fitting a mounting hole, and an elevating guide is erected on an upper side of the jig holder, and a main body to be welded to the guide. A simple jig using a spot welding machine, characterized in that a jig for aligning the sub body is supported so that the welding points of the main material and the sub material are aligned with the electrode core.