JPH0337788Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Industrial Application Field) The present invention relates to an apparatus for producing a code plate by press punching.

(Prior Art) In vehicle production lines, different types of vehicles are sometimes produced on the same assembly line. in this case,
Vehicle type identification is carried out by attaching a code board to each vehicle that displays a vehicle type identification code (hereinafter referred to as a code). Considering that this code plate will be used in various environments within a production line and will be automatically read, it is best to use a steel plate with code-shaped holes.

Conventionally, gas cutting such as contour cutting has been used as a method for producing code plates with such holes.

(Problems to be Solved by the Invention) However, in the code plates made by this method of profile fusing, etc., the accuracy of the machined holes in the code was poor, and automatic reading could not be performed in some cases.

Therefore, various methods were devised to improve the accuracy of the cord holes. For example, laser processing has problems such as high equipment cost and low productivity. Press punching is the best method in terms of productivity and cost, but it has been difficult to produce a wide variety of code plates using conventional press equipment. Therefore, we considered using a recently developed NC punch press device. This NC punch press device has a movable indexing turret section,
The required number of processing heads consisting of a punch and die for punching out a predetermined shape are set up as a set, and the indexing turret moves according to a punching command to index the specified processing head and punch a predetermined code into the automatically transported code board. It's something to go to.

However, this NC punch press equipment
As mentioned above, since multiple processing heads consisting of punches and dies are installed, the device itself is large, making it unsuitable for processing small items such as code boards, and the installation space of the device becomes unnecessarily large. A problem arose.

In view of the above-mentioned problems, the present invention aims to provide an automatic code plate production device that uses press punching and is highly productive, inexpensive, and compact.

(Means for Solving the Problems) As a means for solving the above problems, the present invention provides a requisite number of punches of a predetermined shape via a retainer on a rotary table that is pivoted to an automatic rotary indexing device. A hole into which each of the punches can fit is formed on the side opposite to the retainer, and a recess into which a pin and a code plate are fixed, which fit into a bush provided on the retainer to position the punch, are formed. It is characterized by having one die fixed to a base.

(Function) With this configuration of the present invention, the required number of punches correspond to one die, so it is possible to create various code boards with one die. . Then, rotate the rotary table to index the required punch above the die, fix the code plate material in the recess, and fit the positioning pin into the bush of the retainer to position the punch and die. High precision holes can be drilled in.

(Example) Next, an example of the present invention will be described based on the drawings. 1 and 2 show an automatic code plate production device 1 according to the present invention, which will be explained. Reference numeral 2 denotes a rotation indexing device, in which a drive motor 6 is connected via gears 4 and 5 to the upper part of a rotatably provided shaft 3. Further, a disc-shaped rotary table 7 is fixed to the lower part, so that it can rotate as the shaft 3 rotates.

Punches 9, 9, . . . fixed to retainers 8, 8, .
This punch 9 is used to punch out a predetermined shape, which will be described later, and is provided in a required number. Note that 8a is a stopper made of urethane or the like, which cushions the impact during pressing.

Further, a positioning mechanism 10 is provided on the side surface of the rotary table 7 to position the rotary table 7 at a position determined by rotation of the rotary table 7 by the motor 6. This positioning mechanism 10 performs positioning by inserting a pin 13 into a hole 11 provided in the side surface of a rotary table 7 using a cylinder device 12.

Further, a die 14 is fixedly provided at one location facing the punch 9 provided on the lower side of the rotary table 7. This die 14 can be fitted into all of the punches 9, 9.... Also, this die 14
A round pin 15 and a diamond pin 16 are provided upright as positioning pins, and these pins fit into the bushes 17, 17 of the retainer 8 to accurately position the punch 9 and die 14.

Recesses 18 and 19 are provided at the bases of the positioning pins 15 and 16 to face each other.
The code plate 20 is passed between the cables 19 and 19 to position the code plate.

Above the die 14 having such a configuration, a hydraulic cylinder 21 is provided for lowering the punch 9 to punch out a cord hole in the cord plate 20 by press.

3 and 4 show the relationship between the punch 9 and the die 14. Normally, the characters on the code board use the 7-segment system or the round-hole system shown in FIG. 6, and FIG. 3 shows the punch 9 and die 14 for pressing the 7-segment system code. The punch 9 side has a different shape for each letter, so a punch for each letter is provided, but if you use the one for the letter 8 as shown on the die 14 side, all the punches 9, 9, etc. Only one is installed because it can be fitted. Similarly, the round-hole type die 14 has four round holes so that a single die 14 can fit into all the punches 9, 9, . . . .

Next, the operation of the device configured as described above will be explained. First, the motor 6 is activated by command information, and the rotary table 7 is rotated via the shaft 3 to index the required punch 9 above the die 14. Then, the pin 13 of the positioning mechanism 10 is inserted into the hole 11 of the rotary table 7, and positioning is performed. In addition, the recesses 1 of the positioning pins 15 and 16 of the die 14
The material of the cord plate 20 is supported by 8 and 19, and in this state, the hydraulic cylinder 21 is operated to lower the punch 9 fixed to the retainer 8. Then, the positioning pins 15 and 16 of the die 14 are inserted into the bush 17 of the retainer 8, and the positioning is completed. Then, it is further lowered and press punching is performed.

FIG. 5 is a system configuration diagram using this device 1. To explain this, a required number of code plates 20 are set in a magazine 22 and fed into the automatic code creation device 1 by a code plate feeding mechanism 23. This code plate feeding mechanism 23 is a cylinder device 2
The code plates 20 are sequentially sent out by the expansion and contraction of the piston rods 24a. The sent-out code plate 20 passes over the die 14, comes into contact with the stopper 25a of the shift positioning mechanism 25, and stops. This shift positioning mechanism 25 includes a cylinder device 27
The expansion and contraction of the piston rod 27a is converted into rotational movement of the shaft 28, and the cams 29, 29 provided on the shaft 28
..., the pins 25a, 25b, 25c, 25
d and 25e are raised and lowered. This cam 2
9, 29, . . . are provided at intervals corresponding to the shift, and the mounting angles are shifted so that the pads 25a to 25e are moved up and down sequentially.
Note that 30 is a mechanism for preventing reverse rotation of the shaft 28.

The code plate 20 in contact with the pad 25a is press punched with predetermined characters by the automatic code plate making device 1. Then, the shifting positioning mechanism 25 is operated, the pad 25a is lowered, and the next pad 25b is raised. And the code plate feeding mechanism 23
The code plate is pushed out until it comes into contact with the pad 25b, and the next digit character is punched out. When the code board is completed by punching out characters one after another in this manner, the code board 20 is pushed out to the code board take-out position 32 by the feeding mechanism 31. still,
This system allows these operations to be controlled automatically by a microcomputer.

The automatic code plate making apparatus configured as described above performs press punching by fixing one die and rotating only the punch, so that the apparatus can be made smaller and costs can be reduced.
In addition, by downsizing the equipment, it can be integrated into the line,
Another advantage is that code plates can be created as needed.

(Effects of the invention) As described above, in the present invention, the code plate is created by press working, so the processing accuracy of the code holes is good and the quality is stable. Further, only one die is required for a plurality of punches, and the cost of the device can be greatly reduced, and the device can be made smaller. In addition, by providing a loading/unloading device and controlling it by a microcomputer or the like, there are also effects such as streamlining the production of code plates.

[Brief explanation of the drawing]

Fig. 1 is a front view showing an embodiment of the present invention, Fig. 2 is a cross-sectional view of section A in Fig. 1, and Fig. 3 is a perspective view showing the configuration of a punch and die for punching out letters in the 7-segment system. Figure 4 is a perspective view showing the configuration of a punch and die for punching out round-hole type letters, and Figure 5 is a
A system configuration diagram using the apparatus shown in FIG. 1, and FIG. 6 are diagrams showing the characters of the seven segment method and the round hole method. 1...Automatic code plate creation device, 2...Rotary indexing device, 7...Rotary table, 9...Punch,
14...Die.

Claims (1)

[Scope of utility model registration request] A required number of punches of a predetermined shape are provided through a retainer on a rotary table pivotally attached to an automatic rotation indexing device, and a hole into which any of the punches can be fitted is formed on the side facing the punch, and a hole is formed in the retainer. An automatic code plate making device comprising a die having a pin for positioning the punch and a recess for fixing the code plate fixed to a base by fitting into a provided bush.