JPH0668806U - Perforator base positioning jig - Google Patents

Abstract

(57) [Summary] [Purpose] The base itself can be positioned with high accuracy, and therefore the positional deviation between the center of the rotary tool and the center of the drilling is unlikely to occur. Therefore, the base on which the drilling unit is mounted is repositioned. Provided is a base positioning jig for a punching machine capable of eliminating such difficult and troublesome work. [Structure] A base 44 having a post 43 is positioned and fixed on a surface to be punched, a punching unit 46 equipped with a rotary tool 52 is attached to the post 43, and the punching unit 46 is moved along the post 43. Then, in the base positioning jigs 1, 2 and 3 which can be attached to the punching machine 41 for performing the drilling work by pressing the rotary tool 52 against the surface to be drilled, a display showing the relative position of the center of the rotary tool 52 with respect to the base 44. It is characterized in that the fixed position of the base 44 can be automatically determined by including the portion 1d and substantially matching the display portion 1d and the center of the perforation.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a base positioning jig for a punching machine.

[0002]

[Prior art]

 The applicant has developed and provided to the market a perforator 41 as shown in FIG. 4 for the relatively large perforation of piping work for air conditioning, water supply, gas and the like. The punching machine 41 basically comprises a base 44 on which a support column 43 is provided upright, and a drilling unit 46 detachably mounted on the support column 43 of the base 44.

At the time of punching work, the lightweight base 44 is first positioned and fixed to the surface to be punched, for example, the concrete wall surface by using anchor bolts, and then the heavy-weight punching unit 46 is attached to the support column 43 of the base 44. Mount, and operate the feed lever 48 to move the drilling unit 46 along the rack 50 provided on the side surface of the column 43, and press the rotating diamond tool (bit) 52 against the drilled surface. The drilling work is performed by (see FIG. 5).

[0004]

[Problems to be solved by the device]

 However, the above-mentioned positioning (fixing) of the base 44 alone in consideration of the mounting state of the punching unit 46 depends on the experience and intuition of the operator, and is extremely uncertain by trial and error. Therefore, the positional deviation between the center of the rotary tool and the center of drilling was likely to occur frequently.

Further, this positional deviation becomes clear only when the perforation unit 46 is attached to the base 44 (the support column 43) and the perforation is started, so that the displacement becomes heavy due to the attachment of the perforation unit 46. Fine or coarse movement of the base 44 to correct its position has never been so easy, and it has been extremely difficult especially when a vertical wall surface is used as the surface to be perforated.

Therefore, in the present invention, the positioning of the base alone can be performed with high accuracy, and thus the positional deviation between the center of the rotary tool and the center of the drilling is unlikely to occur. Therefore, the base on which the drilling unit is mounted is re-mounted. An object of the present invention is to provide a base positioning jig for a drilling machine that can eliminate difficult and troublesome work such as positioning.

[0007]

[Means for Solving the Problems]

 In order to solve the above problems, the present invention is to position and fix a base having a support on a surface to be drilled, attach a drilling unit equipped with a rotary tool to the support, and drill along the support. In a base positioning jig of a drilling machine that can be attached to a drilling machine that moves the unit and presses the rotary tool against the surface to be drilled, a display unit that indicates the relative position of the center of the rotary tool with respect to the base. The structural feature is that the fixing position of the base can be automatically determined by substantially matching the display portion and the center of the perforation.

Preferably, for a plurality of punching machines having different relative positions of the centers of the rotary tools, a plurality of corresponding display portions are provided.

[0009]

[Action]

 By aligning the display showing the relative position of the center of the rotary tool with respect to the base to the center of the hole, and fixing the base, the rotary tool of the drilling unit mounted on the column of this base will have its center A hole can be accurately drilled at a desired position, which is substantially coincident with the drilling center.

[0010]

【Example】

 Hereinafter, embodiments of the present invention will be described with reference to the drawings. 1 is a perspective view of a first embodiment of a base positioning jig according to the present invention. Referring to FIG. 1, the jig 1 of the present embodiment has an appearance as if an elongated plate material made of a surface-treated iron plate, stainless steel, or resin is bent into an L shape.

At the upper end side of the one vertical branch portion 1 a of the L-shape, the support column 43 is elastically attached from both sides so that the jig 1 can be detachably fixed to the support column 43 of the base 44. Is provided with a pair of sandwiching plate portions 1b extending outward in parallel to each other. Also, on the left end side of the other horizontal branch portion 1c of the L-shape, two + -shaped holes are partially overlapped vertically so that it can be easily understood because it is drawn partially enlarged. A center alignment hole (display portion) 1d is formed. In addition, the hole shape is set in this way. For example, two large and small perforation units having different relative positions of the center of the rotary tool with respect to the base 44 are mounted on the common base 44 (support 43). This is because the centering hole (not shown) consisting of two or more + -shaped holes is formed so that a large number of different punching units can be used. Not to mention getting it.

A typical procedure of the drilling operation using the jig 1 of the present embodiment having the above-described configuration will be briefly described below. First, the jig 1 is attached to the support column 43 of the base 44 in a one-touch type. The base 44 so that the center of the hole (not shown) previously described on the surface to be drilled and the + crossing of the center alignment hole 1d of the jig 1 are substantially aligned with each other. Position it on the drilling surface and securely fix the base 44 with bolts or the like. As a result, a relative predetermined positional relationship of the base 44 with respect to the hole center is formed.

Next, when the drilling unit 46 is attached to the base 44 (support 43) fixed in this way, the center of the rotary tool of the drilling unit 46 and the drilling center automatically coincide with each other. It will be. Therefore, if the feed lever 48 is simply operated as it is, and the rotary tool 52 of the punching unit 46 is pressed against the surface to be punched, it is possible to accurately and accurately punch a hole at a desired position. In other words, the positioning and fixing of the base 44 can be performed only once, and the re-adjustment of the position as in the past is not necessary at all, so that the efficiency and efficiency of the work is significantly improved.

Finally, two embodiments different from the first embodiment described above will be briefly described below with reference to FIGS. 2 and 3 showing perspective views of the second and third embodiments, respectively. The jig is basically the same as the jig 1 of the first embodiment. However, the former jig 2 (second embodiment) is previously attached to the lower surface of the base 44 so as to be slidably housed, and when used, it is pulled out by a predetermined length for center alignment (FIG. 2). The difference is that it is hidden under the base when not in use. It should be noted that this slide storage can be simply constructed, for example, by providing guide members (not shown) for guiding both sides thereof.

The latter (third embodiment) jig 3 has one end bolted (fixed) to the upper surface of the base and is positioned on the front side of the base for center alignment during use (see FIG. )), When it is not used, it is bent to the base side (Fig. 3 (B)). It should be noted that this bent portion can be configured by, for example, a so-called hinge connection.

As described above, in the second and third embodiments, the jigs 2 and 3 and the base 44 are not separately provided, so that they can be carried and managed separately as can occur in the first embodiment. This is convenient because it completely eliminates problems such as lost items.

[0017]

[Effect of device]

 As described above, according to the present invention, it is possible to position the base unit simply, easily and easily without causing the positional deviation between the center of the rotary tool and the center of the drilling as in the conventional case. This makes it possible to significantly reduce or eliminate the burden on the operator in the perforation work.

[Brief description of drawings]

FIG. 1 is a perspective view of a first embodiment of a base positioning jig according to the present invention.

FIG. 2 is a perspective view of a second embodiment.

FIG. 3 is a perspective view of a third embodiment.

FIG. 4 is an overall perspective view of a punching machine.

FIG. 5 is a view showing a usage state of the punching machine fixed to a wall.

[Explanation of symbols]

 1, 2, 3 ... Jig 1a, 1c ... Branch 1b ... Clamping plate 1d ... Center aligning hole 41 ... Punching machine 43 ... Strut 44 ... Base 46 ... Punching unit 48 ... Feed lever 50 ... Rack 52 ... Rotating tool

Claims (2)

[Scope of utility model registration request] 1. A base having a column is positioned and fixed on a surface to be perforated, a perforation unit equipped with a rotary tool is attached to the column, and the perforation unit is moved along the column to form a perforated surface. A base positioning jig for a drilling machine, which may be attached to a drilling machine for pressing a rotary tool onto the base, has a display section showing the relative position of the center of the rotary tool with respect to the base. A base positioning jig for a punching machine, characterized in that the fixing position of the base can be automatically determined by substantially matching the center. 2. The base positioning jig according to claim 1, further comprising a plurality of corresponding display portions for a plurality of punching machines having different relative positions of the centers of the rotary tools.