JPH0539969U - Jig for marking - Google Patents

Abstract

(57) [Abstract] [Purpose] To provide a marking jig that makes it easy to position a workpiece using a commercially available standard marking punch. [Structure] A slide rod 2 for mounting a stamp punch 1 is installed inside a sleeve 3 so as to be slidable within a predetermined distance in an axial direction thereof, and a positioning guide 3a is formed at a tip portion of the sleeve 3. The sleeve is grasped with one hand, the positioning guide is applied to a predetermined surface of the work, and the head of the slide rod is hit with a hammer while the front end surface of the sleeve is in contact with the end surface of the work.
The marking character surface of the marking punch is positioned parallel to a predetermined position on the surface of the work, and is clearly marked at the predetermined position.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a marking jig having a marking positioning guide.

[0002]

[Prior Art]

 Conventionally, when engraving a model number on a product, a commercially available engraving punch (standard size 9.5 x 9.5 x 100 mm) was used to support it by hand, and the head of the engraving punch was hit with a hammer to work. It is engraved. Japanese Utility Model Laid-Open No. 62-13661 discloses a marking punch in which a marking punch is supported by a guide surface that axially guides the side surface of the punch and a guide having a spring for supporting the marking punch inside. .

[0003]

[Problems to be solved by the device]

 When the conventional stamping punch is supported by an operator by hand, it is difficult to hold the stamping punch at a right angle to the surface of the work, so that the stamping may not be successful. Also, since the commercially available stamped punch has a short length (standard product length is 100 mm), there is a risk of hitting with a hammer. The stamp punch described in the above publication cannot use a standard stamp punch on the market.Therefore, a dedicated stamp punch must be newly manufactured. In case of doing so, it is necessary to prepare a large number of dedicated stamp punches. Further, the marking punch can be held at a right angle to the surface of the work by the guide, but on the other hand, the tip of the marking punch with the marking characters is hidden by the guide, making it difficult to position the marking portion.

An object of the present invention is to solve the above problems and to provide a marking jig that can use a commercially available standard marking punch and that can easily position a workpiece. Is.

[0005]

[Means for Solving the Problems]

 The present invention is a marking jig in which a slide rod to which a marking punch is attached is installed in a sleeve so as to be slidable within a predetermined distance in the axial direction, and a positioning guide is formed at the tip of the sleeve.

[0006]

[Action]

 Grasp the sleeve with one hand and apply the positioning guide to the specified surface of the work. With the tip of the sleeve in contact with the end of the work, hit the head of the slide rod with a hammer. The marking character surface of the marking punch is positioned parallel to a predetermined position on the surface of the work, and is clearly marked at the predetermined position.

[0007]

【Example】

 1A, 1B, 1C are a front view, a sectional view, and a left side view, respectively, of a first embodiment of the present invention. A commercially available standard marking punch 1 is inserted into the slot 2a provided in the slide rod 2 with the marking character surface 1a side slightly protruding, and fixed with the set screw 4. The slide rod 2 is slidably installed in the sleeve 3, and the guide bolt 5 is fixed to the slide rod 2 so that the head of the guide bolt 5 moves in the long groove 3a provided in the axial direction of the sleeve 3. . The sleeve 3 is formed with a positioning guide 3a at the tip and a knurl 3c at the outer periphery. As shown in FIG. 1C, the positioning guide 3a is formed as a protruding step portion which is separated from the center of the marking character surface 1a of the marking punch 1 by a distance h. The slot 2a to which the stamp punch 1 of the slide rod 2 is attached may be welded after closing the open side surface in order to firmly hold the stamp punch 1.

As shown in FIG. 2, when the marking jig of the first embodiment is used for marking on the end face A just under h from the upper end of the work W, the sleeve 3 is held by one hand and the positioning guide 3a is held. The top end of the sleeve 3 is brought into contact with the end face of the workpiece, and the head of the slide rod 2 is hit with a hammer. Since the sleeve 3 is provided with the knurling 3c, the hand is not slippery and there is no risk of tapping the hand. Since the head of the bolt 5 which is positioned and attached to the slide rod 2 regulates the movement around the axis by the long groove 3b of the sleeve 3, it is clearly engraved in the correct position A on the workpiece. Since the head of the bolt 5 limits the axial movement of the slide rod 2 in the axial direction by the long groove 3b of the sleeve 3, it does not come out of the sleeve 3 and can be used in the same manner next time.

FIG. 3 and FIG. 4 show another embodiment. As shown in FIG. 3, when stamping on the protruding end face B 1 of the work W1, the positioning guides provided at the tip of the sleeve 3 are formed as guides 6 and 6 for sandwiching the protruding end face of the work from both sides. In the case of marking on the concave portion of the work, as shown in FIG. 4, the positioning guide is formed with a pair of protrusions 7 that fit into the concave portion C of the work W2. In either case, the positioning and holding of the sleeve 3 is easy, and by hitting the head of the slide rod 2 with a hammer, the engraved characters can be clearly engraved on a predetermined portion in the correct direction.

[0010]

[Effect of the device]

 According to the present invention, since it becomes easy to position the marking punch on a predetermined surface of the work and hold the marking punch at a right angle, it is possible to clearly mark the marking on the predetermined position of the work. Moreover, since a standard stamping punch can be used and the stamping punch head cannot be directly hit, the life of the stamping punch is extended and the cost can be reduced.

[Brief description of drawings]

FIG. 1 is a front view, a sectional view, and a side view showing a first embodiment of the present invention.

FIG. 2 is an explanatory diagram of a usage state of the first embodiment.

FIG. 3 is an explanatory diagram of a usage state of the second embodiment.

FIG. 4 is an explanatory diagram of a usage state of the third embodiment.

[Explanation of symbols]

1 Stamp punch 2 Slide rod 3 Sleeve 3a Positioning guide 4 Set screw 5 Guide bolt

Claims (1)

[Scope of utility model registration request] 1. A marking jig, wherein a slide rod for mounting a marking punch is installed inside a sleeve so as to be slidable in a predetermined distance range in the axial direction, and a positioning guide is formed at a tip portion of the sleeve.