JP2870300B2 - Engraving device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a marking device, and more particularly to a marking device for marking a panel component to be spot-welded.

[0002]

2. Description of the Related Art When a large number of components of the same kind are manufactured by a plurality of assembly jigs, it is important to control which jig is a panel component welded in product manufacture or maintenance of facilities. . Therefore, conventionally, a stamp for identifying the assembly jig used for assembling the panel component W is stamped on the panel component W using an apparatus as shown in FIG. 5, FIG. 6, or FIG. FIGS. 5 and 6 are a plan view and a side view showing a stage S for assembling the same panel component by two assembling jigs 11 and 13, one welding robot 15, and one worker M. It is.
As shown in the figure, an exclusive marking machine 21 or 23 is provided for each of the assembly jigs 11 and 13 installed on the stage S. Therefore, each assembly jig 11,
The panel parts W welded and assembled at 13 are provided with stamping machines 21 provided exclusively for each assembly jig.
An engraving is performed by 23. FIG. 7 shows the engraving head 2
5 is an example in which a switchable general-purpose stamping machine 27 is provided on the stage S. In this case, the general-purpose stamping machine 27 is connected to the sequencer 2
9 to control each assembly jig 3
A mark corresponding to the assembling jig used for assembling is stamped on each of the panel components W assembled by welding in steps 1 to 34.

[0003]

However, as shown in FIG. 5, when a dedicated stamping machine 21, 23 is installed for each of the assembling jigs 11, 13, and the panel component W is engraved, the assembling jig is performed. As the number of tools increases, the number of stamping machines also needs to be increased, which causes a problem of an increase in production cost and a problem of securing an installation space. Furthermore, there is a disadvantage that it is not possible to quickly respond to the case where the number of jigs is increased or decreased or replaced. A general-purpose stamping machine 2 shown in FIG.
When using No. 7, it is relatively more advantageous than the case where a dedicated engraving machine is installed in responding to an increase in production cost and equipment change, but it is difficult to perform engraving quickly.

The present invention has been made in view of the above problems, and provides a marking device having a very simple structure capable of rapidly reducing the cost required for marking and rapidly responding to increase or decrease or replacement of an assembly jig. The purpose is to do.

[0005]

According to the present invention, there is provided a punching die unit for stamping a panel component on an assembly jig provided on an assembly stage for holding the panel component. A piece unit for pressing the panel component and stamping the stamp by cooperating with the punch die unit is attached to an arm of a welding robot installed adjacent to the assembling jig. It is an engraving device.

[0006]

[Function] When the panel parts are placed on the assembly stage,
The stamped surface of the punch die unit attached to the assembly stage contacts the surface of the panel component. Subsequently, the piece unit attached to the robot arm of the welding robot faces the punch die unit via the panel component, and the panel component is pinched by the cooperation of the punch die unit and the piece unit. In this way, the stamping can be performed by a very simple marking device.

[0007]

Embodiments of the present invention will be described below with reference to the drawings. The members already described are given the same reference numerals. As shown in FIG. 1, two assembling jigs 11 and 13 are installed on the stage S.
A plurality of clamp members 41 for holding panel components W mounted on the assembly jigs 11 and 13 are attached to 1 and 13. Also, as shown in FIG. 2, the punching die units 43 and 45 are attached to the assembling jigs 11 and 13, respectively.
Is attached, and when the panel component W is placed at a position indicated by a two-dot chain line, the panel component W comes into contact with the lower surface of the panel component W.

As shown in the enlarged side view of FIG. 3, the punch supporting member 47 of the punch die unit 43 is attached to the base surface 51 of the assembly jig 11 via the first cushion rubber 49. In the punch support member 47,
A positioning block 53 slidable in the vertical direction is attached, and is positioned at an arbitrary position by a bolt 55 projecting from the lower surface of the punch support member 47. The stamping surface 5 for stamping the panel component W placed on the assembly jig 11 is provided on the punch support member 47.
A punch 59 having an upper part 7 is mounted to be vertically movable. The punch 59 is in contact with the positioning block 53 at the lower end, and is positioned by positioning the positioning block 53. The punch 59 is fixed to the punch support member 47 by bolts 61 and 63 and the like, and the tilt and play of the punch 59 with respect to the support member 47 and play are adjusted and removed by the bolts 61 and 63. I have. Therefore, by adjusting the vertical position of the positioning block 53, it is possible to cope with a different lower surface position for each type of the panel component W, and by adjusting the inclination and the like with the bolts 61 and 63, the stamping surface 57 and the panel component W can be adjusted. The lower surface can be abutted in parallel.

Further, as shown in a partial plan view as seen from the direction of arrow B surrounded by a drawer circle in FIG. 3, a mark A is engraved on the engraved surface 57, and the panel component assembled by the assembling jig 11 is provided. A mark A is imprinted on W. Therefore, different marks can be stamped on the panel components assembled by the respective assembly jigs by attaching punches with different marks to the respective assembly jigs 11 and 13, so that the assembly jigs can be assembled with any of the assembly jigs. The panel component can be determined by recognizing the mark.

As shown in FIGS. 1 and 2, a spot welding robot 6 is located at a position adjacent to both assembly jigs.
5 are installed. As shown in FIG. 2, a welding gun 71 having a pair of electrode tips that are relatively close to and separated from each other is attached to a robot arm 67 of the welding robot 65 via a bracket 73.
Spot welding is performed on the panel components W mounted on the first and the first panel 13. Also, this bracket 73 includes:
Stamping piece unit 7 at a position not to interfere with welding gun 71
5 is attached. As shown in the enlarged side view of FIG. 3, the stamp piece support member 77 attached to the bracket 73 has a cylindrical shape, and a partition wall 79 that partitions an internal space into and out of the cylinder is provided inside the cylinder. ing. The second cushion rubber 81 is fitted in the outer space of the partition wall in the cylinder, and the bolt 83 projects outside the inner space through the partition wall 79 and the second cushion rubber 81. A stamping piece 85 is attached to the tip of the protruding bolt 83, and the second cushion rubber 8
1 and slidably contact the inner surface of the cylinder. Therefore, when the embossing piece 85 shown in FIG. Is done. The stamp piece 85
May be hardened by quenching the end face, that is, the vicinity of the contact surface with the panel component W. Each of the assembly jigs installed on the stage S has the same structure as the assembly jig 11 described above.

Next, a procedure for engraving the surface of the panel component by the engraving apparatus of this embodiment will be described. As shown in FIG. 3, the punch 59 of the punch die unit 43 installed on the base surface 51 of the assembly jig 11 adjusts the positioning block 53 and the bolts 61 and 63 to position the punch 59 at a position suitable for the panel to be assembled. Have been. Therefore, when the panel component W is placed on the assembly jig 11,
As shown in FIG. 3, the panel component W comes into contact with the marking surface 57 of the punch 59.

When the panel component W is placed on the assembly jig 11 in such a state, first, the welding point of the panel component W is welded by the welding gun 71 of the welding robot 65. When the welding is completed, the robot arm 67 of the welding robot 65 is rotated, and the stamping piece unit 75 attached to the bracket 73 is turned downward as shown in FIG. It is made to face the unit 43. Subsequently, by moving the embossing piece unit 75 downward in the figure, the panel component W
5 and the punch 59, the stamping surface 57 of the punch 59
An inscription is made on the panel component surface in contact with. In this way, the panel components mounted on the assembly jig 11 are welded and stamped, and when these operations are completed, the panel components subsequently mounted on another assembly jig 13 are Similarly, a welding operation and a stamping operation are performed. The punch die unit 43 and the embossing piece 85 are both mounted via cushion rubbers 49 and 81, and the contact surfaces of the punch 59 and the embossing piece 85 with the panel component W are both chamfered. Therefore, there is no notch on the panel component W during the stamping operation.

Further, another embodiment of the stamp piece unit is shown in a side view of FIG. As shown in FIG. 4, an embossing piece 93 which is movable up and down in the figure is attached to an embossing piece support member 91 attached to a bracket 73 of the robot arm. It moves forward and backward by an air cylinder mounted inside. Therefore, when performing the engraving, first, the robot arm is driven, and the embossing piece 93 is moved to the punch 59.
To face. Subsequently, the stamping piece 93 is moved forward by a pneumatic cylinder downward in the drawing, and the panel piece W is stamped by cooperation of the stamping piece 93 and the punch 59.

The above embodiment is an example in which a plurality of assembling jigs for holding the same kind of panel parts are installed on one stage. Is used to identify which assembly jig is used to weld similar panel components. However, the present invention can be applied even when the stage has one assembly jig. When the present invention is applied, for example, a lot number, a date, and the like can be marked very easily.

[0015]

As described above, according to the present invention, by attaching a very small number of members and devices having a simple structure to an assembly jig, it is possible to stamp a panel component to be welded by the assembly jig. Therefore, it can be installed in a small installation space, and a significant cost reduction can be realized.
Further, since the structure is simple, it is possible to quickly respond to an increase or decrease or replacement of jigs due to a change of an assembled part.

[Brief description of the drawings]

FIG. 1 is a plan view showing an assembling stage on which an engraving device of the present embodiment is installed.

FIG. 2 is a side view showing an assembly stage on which the engraving device of the present embodiment is installed.

FIG. 3 is a side view showing a state in which a punch die unit and a stamping piece unit face each other in a state of being close to each other;

FIG. 4 is a side view showing a stamp piece unit according to another embodiment;

FIG. 5 is a plan view showing a conventional example,

FIG. 6 is a side view showing a conventional example,

FIG. 7 is a plan view showing another conventional example.

[Explanation of symbols]

11, 13 ... assembly jigs 43, 45 ... punch die unit 47 ... punch support member 53 ... positioning block 59 ... punch 65 ... spot welding robot 71 ... welding gun 75 ... stamping piece unit 77 ... stamping piece support member 85 ... Stamped piece M… Worker S… Stage W… Panel parts

Claims (1)

(57) [Claims] 1. A punch die unit for stamping a panel component is attached to an assembly jig provided on an assembly stage and holding a panel component, and a welding robot installed adjacent to the assembly jig is provided. A marking device, wherein a piece unit for stamping the stamp by pressing the panel component in cooperation with the punch die unit is attached to the arm.