JPH05338394A - Marking device - Google Patents

Abstract

PURPOSE:To obtain a marking device of a remarkably simple structure which can reduce a cost required for impressing a mark to a great extent and rapidly correspond to the increase/decrease or replacement of assembling jigs. CONSTITUTION:A panel part W is placed on an assembling jig 11. Then, a marking surface 57 of a punch die device 43 mounted on the assembling jig 11 comes into contact with the surface of the panel part W. Next, a marking piece device 75 mounted on a robot arm 67 of a welding robot 65 is opposed to the punch die device 43 through the panel part W. The panel part is clamped to be marked between the punch die device 43 and the marking piece device 75 by actuating them in conjunction with each other. In this manner, a mark can be impressed on a panel part to be welded by using a very small number of members of a simple sutucture. Therefore, this marking device can be installed in a small installation space and result in a cost being lowered. The marking device is so simple in structure as to rapidly correspond to the increase/decrease or replacement of assembling jigs.

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 part to be spot-welded.

[0002]

2. Description of the Related Art When a large number of similar jigs are manufactured by a plurality of assembling jigs, it is important to control which jigs are welded panel parts in order to manufacture products or maintain facilities. .. Therefore, conventionally, an apparatus as shown in FIG. 5 and FIG. 6 or FIG. 7 is used to stamp the panel component W for identifying the assembly jig used for assembly. 5 and 6 are a plan view and a side view showing a stage S in which the same panel component is assembled by two assembly jigs 11 and 13 and one welding robot 15, and one operator M. Is.
This is an example in which dedicated marking machines 21 and 23 are provided for the respective assembly jigs 11 and 13 installed on the stage S as shown in the figure. Therefore, each assembly jig 11,
The panel component W welded and assembled at 13 is provided with a marking machine 21, which is specially provided for each assembly jig.
Marks are stamped by 23. Further, FIG. 7 shows the marking head 2
5 is an example in which a general-purpose stamping machine 27 that can be switched is provided on the stage S. In this case, the general-purpose marking machine 27 is connected to the sequencer 2
By controlling using 9 or the like, each assembling jig 3
Each panel component W assembled by welding in 1 to 34 is engraved with a mark corresponding to the assembly jig used for assembly.

[0003]

However, as shown in FIG. 5, when a dedicated stamping machine 21 or 23 is installed for each of the assembly jigs 11 and 13 and the panel component W is stamped, the assembly repair is performed. As the number of tools increases, the number of punching machines also needs to increase, which causes a problem of increased production cost and a problem of securing installation space. Further, there is a drawback that it is not possible to respond promptly when the number of assembly jigs is increased or decreased or replaced. In addition, the general-purpose engraving machine 2 shown in FIG.
In the case of using No. 7, it is relatively advantageous in terms of dealing with an increase in production cost and a change in equipment, as compared with the case where a dedicated stamping machine is installed, but it is difficult to carry out marking quickly.

The present invention made in view of the above problems provides a marking device having an extremely simple structure which can drastically reduce the cost required for marking and can quickly respond to the increase or decrease or replacement of the assembly jig. The purpose is to do.

[0005]

According to the present invention for achieving the above object, a punch die unit for engraving a stamp on a panel component is attached to an assembly jig provided on an assembly stage for holding the panel component. And a piece unit that presses the panel component in cooperation with the punch die unit to stamp the marking on the arm of the welding robot installed adjacent to the assembly jig. It is a marking device.

[0006]

[Operation] 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. Then, the piece unit attached to the robot arm of the welding robot is made to face the punch die unit through the panel component, and the panel component is pinched by the cooperation of the punch die unit and the piece unit. In this way, stamping can be performed with a very simple marking device.

[0007]

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

As shown in the enlarged side view of FIG. 3, the punch support 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. The punch support member 47 includes
A positioning block 53, which is slidable in the vertical direction, is attached, and is positioned at an arbitrary position by a bolt 55 protruding from the lower surface of the punch support member 47. Further, the punch support member 47 has a marking surface 5 for stamping the panel component W placed on the assembly jig 11.
A punch 59 having 7 is attached so as 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 with bolts 61 and 63, and the tilt and backlash of the punch 59 with respect to the support member 47 are adjusted and removed by these bolts 61 and 63. There is. Therefore, by adjusting the vertical position of the positioning block 53, it is possible to cope with different lower surface positions for each type of the panel component W, and by adjusting the inclination and the like by the bolts 61 and 63, the marking surface 57 and the panel component W can be adjusted. The lower surface can be contacted in parallel with each other.

Further, as shown in the partial plan view of the arrow B surrounded by the drawing circle in FIG. 3, a mark A is engraved on the engraved surface 57, and the panel component assembled by the assembly jig 11 is shown. Mark A is stamped on W. Therefore, by attaching punches having different marks to the assembling jigs 11 and 13, different marks can be stamped on the panel parts assembled by the respective assembling jigs. It is possible to judge whether it is a panel part or not by recognizing the mark.

As shown in FIGS. 1 and 2, the spot welding robot 6 is provided at a position adjacent to both assembly jigs.
5 are installed. As shown in FIG. 2, the welding arm 71 of the welding robot 65 has a pair of electrode tips that are relatively close to and away from each other and is attached thereto via a bracket 73.
Spot welding is performed on the panel parts W placed on the terminals 1 and 13. Also, this bracket 73 has
Engraving piece unit 7 at a position that does not interfere with welding gun 71
5 is attached. As shown in the enlarged side view of FIG. 3, the engraving piece support member 77 attached to the bracket 73 has a tubular shape, and a partition wall 79 for partitioning the internal space into the inside and the outside is provided inside the cylinder. ing. The second cushion rubber 81 is fitted in the partition outer space in the cylinder, and the bolt 83 projects through the partition 79 and the second cushion rubber 81 to the outside of the inner space. An engraving piece 85 is attached to the tip of the protruding bolt 83, and the second cushion rubber 8
It is in close contact with No. 1 and is in slidable contact with the inner surface of the cylinder. Therefore, when the engraving piece 85 shown in FIG. 3 is moved close to the punch 59 and the panel component W is pinched by the cooperation of the engraving piece 85 and the punch 59, the mark A is engraved on the lower surface of the panel component W. To be done. The stamping piece 85
It may be used after being hardened by quenching the end face thereof, that is, the vicinity of the contact surface with the panel component W. Each of the assembling jigs installed on the stage S has the same structure as the assembling jig 11 described above.

Next, the procedure for marking the surface of the panel component with the marking device 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 is positioned at a position suitable for the panel to be assembled by adjusting the positioning block 53 and the bolts 61 and 63. Has been done. Therefore, when the panel component W is placed on the assembly jig 11,
As shown in FIG. 3, the panel component W abuts 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 gun 71 of the welding robot 65 welds the welding point of the panel component W. When the welding is completed, the robot arm 67 of the welding robot 65 is then rotated to direct the stamping piece unit 75 attached to the bracket 73 downward as shown in FIG. Face the unit 43. Then, by moving the engraving piece unit 75 downward in the drawing, the panel component W is moved to the engraving piece 8
The stamped surface 57 of the punch 59 is clamped between the punch 5 and the punch 59.
The surface of the panel part that touches is engraved. In this way, the panel components placed on the assembly jig 11 are welded and stamped, and when these operations are completed, the panel components subsequently placed on the other assembly jig 13 are Similarly, welding work and stamping work are performed. The punch die unit 43 and the stamping piece 85 are both attached via cushion rubbers 49 and 81, and the contact surfaces of the punch 59 and the stamping piece 85 with the panel component W are both chamfered. Therefore, the panel component W is not cut and scratched during the stamping operation.

Further, another embodiment of the engraving piece unit is shown in the side view of FIG. As shown in FIG. 4, an engraving piece support member 91 attached to a bracket 73 of the robot arm is provided with an engraving piece 93 that can move back and forth in the figure. It is designed to move forward and backward by an air cylinder installed inside. Therefore, when performing marking, first, the robot arm is driven to move the punching piece 93 to the punch 59.
Located opposite to. Then, the air cylinder moves the engraving piece 93 downward in the drawing, and the panel piece W is engraved by the cooperation of the engraving piece 93 and the punch 59.

The above embodiment is an example in which a plurality of assembly jigs for holding the same type of panel components are installed on one stage, and the markings to be stamped on the panel components in each assembly jig are mainly , It is used to identify which assembly jig welded the same kind of panel parts. However, the present invention can be applied even when the stage has one assembly jig, and by applying the present invention, for example, a lot number, a date, etc. can be marked very easily.

[0015]

As described above, according to the present invention, a very small number of members and devices having a simple structure are attached to an assembly jig to perform marking on a panel part to be welded by the assembly jig. Since it can be installed, it can be installed in a small installation space and a large cost reduction can be realized.
Further, since the structure is simple, it is possible to quickly respond to the increase or decrease or replacement of the jigs due to the change of the assembly parts.

[Brief description of drawings]

FIG. 1 is a plan view showing an assembly stage on which a marking device of this embodiment is installed,

FIG. 2 is a side view showing an assembly stage in which the marking device of the present embodiment is installed,

FIG. 3 is a side view showing a state in which the punch die unit and the engraving piece unit face each other in close proximity to each other;

FIG. 4 is a side view showing an embossing piece unit of another embodiment,

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

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

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

[Explanation of Codes] 11, 13 ... Assembly jig 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 ... Stamping piece M ... Worker S ... Stage W ... Panel component

Claims (1)

[Claims] 1. A welding robot provided adjacent to the assembly jig, wherein a punch die unit for engraving a marking on the panel component is attached to an assembly jig provided on an assembly stage for holding a panel component. A marking device, in which an arm is attached with a piece unit that presses the panel component in cooperation with the punch die unit to stamp the marking.