JPS6053716B2 - number stamping machine - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention mainly relates to a stamping machine used for stamping a body number on the side surface of a head pipe at the front end of a motorcycle body frame as a workpiece.

Conventionally, this kind of stamping machine has a main body of the stamping machine, which is provided with a feed base that can freely move back and forth, and an elevating frame that can move up and down on the feed base, and the elevating frame has a vertical movement according to its up and down movement. a sector gear or other driving member rotated between one side and the other side;
A type has been proposed that includes an engraving head which is engaged with this and similarly rotated from one side to the other, and in which the head faces a workpiece, for example, a head pipe of a car body frame, with the printing surface on the front side of the head. However, originally, the vehicle body number consists of a code part at the beginning and a number part following this, and for example, depending on the model change, the number of digits may increase from 13 to 16 digits or from 16 to 16.
[It is generally accepted that it changes to a girder, and when stamping this on the side of a head pipe, it is preferable to stamp it equally above and below the midpoint of the metal height of the pipe, meeting the conventional requirements) Generally, the means for adjusting the pipe is adjusted by moving the pipe side up and down, but such a system has the disadvantage that the structure tends to be complicated and large.

The purpose of the present invention is to obtain a stamping machine free of such inconveniences, and the main body of the present invention is provided with a feed table that can freely move forward and backward, and an elevating frame on the feed table that can freely move up and down. A sector gear or other drive member is provided, and the elevating frame is provided with a sector gear or other driving member that is rotated in one direction and the other in the vertical direction according to the vertical movement thereof, and a sector gear or other driving member that is engaged with the driving member and rotates in one direction and the other direction in the vertical direction. In a type in which a marking head is provided, and the printing surface on the front face of the head is opposed to the head pipe or other work of the vehicle body frame located in front of the head, the head is indexed to the drive member. They are engaged through a plate so that the head is given an angular position corresponding to the indexing angle of the indexing plate.

An example of implementing the present invention will be explained with reference to the attached drawings.

In the drawings, reference numeral 1 denotes the main body of the stamping machine, and the main body 1 has a recess 2 on its front surface, a feed table 3 located in the recess 2 that can freely move back and forth, and a feed table 3 located on the feed table 3 that can move up and down. It is provided with a movable elevating frame 4. The feed table 3 is moved back and forth in conjunction with a cylinder 5 on its back side, and the elevating frame 4 itself is configured as a hollow cylinder and moves up and down along a fixed piston rod 6 extending in the vertical direction. shall be moved. The elevating frame 4 is provided with a pinion 8 located on its side surface and engaged with a rack 7 fixed on the feed platform 3 side, and a drive member 9 of a fan-shaped gear blade that engages with the pinion 8, so that the elevating frame 4 According to the vertical movement of 4, the drive member 9 is acted upon by the rack 7 through the pinion 8, and is given rotation in one direction and the other in the vertical direction about the shaft 10 in front of it. I made it. Further, the elevating frame 4 has an embossing head 11 on its front surface that engages with the drive member 7 and rotates up and down with the drive member 7.
The head 11 is in the form of a drum, and the front side of the head 11 is a typeface 12.
, facing the workpiece a at the front position. In the illustrated example, the workpiece a consists of a head vibrator at the front of the vehicle body frame on a jig table b, which is guided into a vertical position and fixed in that position by the upper and lower centering shafts 13, 13. I made it.

To explain its operation, for example, if the feed platform 3 is advanced from the state shown in the fourth figure and the lifting frame 4 is moved down as shown in the fifth figure, the driving member 9 will move as shown in the drawing. The embossing head 11 is rotated downward and upward in the drawing, and the head 11 is brought into contact with the workpiece a on the starting end side of the typeface 12 on the front side thereof. Let it rise. For example, as shown in the sixth figure, the drive member 9 rotates upward and the engraving head 11 rotates downward, and thus the head 11 rolls over the workpiece a and engraves it. Next, when the feed table 3 is moved backward and the lifting frame 4 is moved downward, the state shown in FIG. 4 is returned to the state shown in FIG.

The above is not particularly different from the conventional method, and the current method cannot correctly adapt to changes in the number of digits in the vehicle body number.

In other words, let us consider a case where the letters of the vehicle body number are lined up from the bottom to the top on the front surface of the printing surface 12, for example from point A to point B, and point B changes up or down as the number of digits is changed. In this case, the marking always starts from the height position corresponding to point A on the workpiece A, and the marking progresses upward, and the length changes depending on the number of digits. are not necessarily evenly distributed above and below the center point c of the total height of the workpiece a. For example, if we consider that the number for 1 Luci is set to be distributed 8 digits above and below point c, then if the number of digits is changed to, say, U digits, the lower 8 digits and the upper 6 digits will be distributed. As a result, the overall marking is deviated downward.In the past, in order to eliminate this inconvenience, the workpiece a side was adjusted up and down as described above, but according to the present invention, this can be avoided. The embossing head 11
I configured it as follows to do it on my side. That is, the embossing head 11
and the drive member 9 are engaged with each other via an index plate 14, as clearly shown in FIGS. 2 and 3. To explain this in detail, the index plate 14 has a mid-plate shape as a whole as shown in FIG.
and a plurality of grooves 16 are arranged on the outer periphery of the shaft hole 15, and the grooves 16 are fitted into the square shaft portion 10a of the corresponding cross-sectional shape of the end of the shaft 10 in the shaft hole 15. The pin 9a on the side of the drive member 9 is engaged with the pin 9a on the side surface of the drive member 9. More specifically, as an example, the shaft hole 15 is made into a square shape as shown in FIG. It is assumed that the four pieces are appropriately displaced with respect to each reference position at 90 degree intervals. That is, the groove 16 on the right side is displaced upward by 26 seconds, the groove 16 on the left side is displaced downward by 2 degrees 55 minutes 18 seconds, and the groove 16 on the lower side is displaced 1 degree 56 minutes 52 seconds to the right. deviated to
Thus, these were prepared for 1st lucid use, 1st lucid use, 1st lucid use, and 1st shoulder row. Thus, to explain its operation, in a state in which the groove 16 for one-pass is selected, that is, in a state in which the groove 16 is engaged with the pin 9a, it is as shown in FIGS. 4 to 6, for example, and at the point A described above. and point B are 8 digits above and below point c, but if the number of digits is changed next, index plate 14
Once removed from the top of the shaft 10, rotate it appropriately and fit it again.
For example, the pin 9a is engaged with the left groove 16, that is, the first groove.

According to this selection, the angular position of the embossing head 11 at the beginning of its operation, that is, the angular position in the state shown in FIG. , thus, according to the inscription, AB is 6. The positions are distributed in 6.5 digits below the screen. This also applies to the selection of other grooves 16.
Furthermore, if the indexing plate 14 is used upside down, it can be applied to 1-digit, 19-digit, and 1-way rows based on substantially the same principle. In this way, according to the present invention, the angular position of the embossing head is indexed and set by the indexing plate, and it is possible to freely cope with changes in the number of digits of the car body number and other embossed characters. are always evenly distributed above and below a predetermined height on the workpiece, and the operation thereof is extremely simple, requiring only the indexing operation of the indexing plate, and has the advantage of being compact.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a side view of one example of the stamping machine of the present invention, FIG. 2 is a partially enlarged side view of the opposite side, and FIG. 3 is a sectional view taken along the line ■-■. 4 to 6 are explanatory diagrams of its operation, and FIG. 7 is a front view of one example of the indexing plate.

1... Stamping machine main body, 3... Feeding stand, 4
... Lifting frame, 9... Drive member, 11.
... Emboss head, 12 ... Type surface, a.
...Work, 14... Index board.

Claims (1)

[Claims] 1. The stamping machine main body is provided with a feed base that can freely move back and forth, and an elevating frame that can move up and down on the feed stand, and the elevating frame has a vertical movement according to its vertical movement. A sector gear or other driving member is provided which is rotated in one direction and the other direction, and an engraving head which is engaged with the driving member and which is rotated in one direction and the other direction in the vertical direction. In this type, the head is opposed to the head pipe or other work of the vehicle body frame at the front position, and the head is engaged with the drive member via an indexing plate, and the head is moved according to the indexing angle. A number stamping machine in which a given angular position is given. 2. The index plate is formed into a disk shape having a polygonal shaft hole at the center and a plurality of grooves at appropriate intervals on the outer periphery, and the index plate is arranged in the shape of a disc having a polygonal shaft hole at the center and a plurality of grooves at appropriate intervals on the outer periphery, and the end of the operating shaft of the head is inserted into the shaft hole. A number stamping machine according to claim 1, which is fitted into a square shaft portion of a corresponding cross-sectional shape and engaged with a pin on a side surface of the drive member at an appropriate one of the grooves.