JP4417708B2 - Positioning device for drilling machine - Google Patents

Description

  The present invention relates to an apparatus for positioning a drilling machine on, for example, an H-shaped steel or a grooved steel.

In the following Patent Document 1, the tip of the positioning pin 30 is brought into contact with the drilling position of the front flange A of the H-shaped steel, and the flat heads 31 of the left and right bolts 26 are brought into contact with the front flange A. When the bolt 36 at the center of the vertical plate 34 is rotated by a spanner or the like and brought into contact with the rear flange A, the drilling machine 1 can be fixed between the front and rear flanges A.
Japanese Utility Model Publication No. 7-19682

  However, since the gap between the rear flange A and the motor 8 is narrow before the drilling machine 1 is inserted between the front and rear flanges A of the H-shaped steel, the bolt 36 is inserted with a spanner or the like in the narrow gap. Positioning work for rotating the wheel has been difficult to perform.

  An object of the present invention is to facilitate the positioning work of a drilling machine before drilling into a shape steel or the like.

The present invention will be described with reference to the reference numerals of the drawings (FIGS. 1 to 4) of the embodiments described later.
The positioning device (6) of the drilling machine (1) according to the invention of claim 1 is configured as follows.

In this drilling machine (1), the cutter mounting shaft (3) is rotated by the drive source (2), and the cutter mounting shaft (3) is rotated around the rotation center line (3a) by the drilling amount adjusting handle (4). Can move in direction (Z). On the head (2a) side where the cutter mounting shaft (3) is disposed in the drive source (2), a positioning portion (7) is disposed adjacent to the cutter mounting shaft (3). The drive source (2) is separated from the rotation center line (3a) of the cutter mounting shaft (3) by a distance (L) on the bottom (2b) side opposite to the head (2a) side. A positioning operation handle (8) is arranged at the position. The positioning portion (7) is provided with both pressure contacts (11, 12) that move relative to each other in the direction (Z) along the rotation center line (3a) of the cutter mounting shaft (3) to approach and separate from each other. Between the positioning operation handle (8) and the positioning portion (7), the movement of the positioning operation handle (8) is transmitted as the relative movement of the two pressure contact bodies (11, 12) of the positioning portion (7). A positioning transmission mechanism (9) is provided. One of the pressure contact bodies (11, 12) of the positioning portion (7) is a fixed pressure contact body (11) and the other is a movable pressure contact body (12), which is movable with the fixed pressure contact body (11). The movable pressing member (12) is urged so as to approach the fixed pressing member (11) by the elastic force of the elastic member (14) interposed between the pressing member (12) and the positioning operation handle. Due to the movement of (8), the movable press contact body (12) is separated from the fixed press contact body (11) against the elastic force of the elastic body (14). In the case of the pair of positioning portions (7) as in the invention of claim 2, the movable pressure contact body (12) is connected to the interlocking portion (15) connected to each other and the cutter mounting shaft (3). And a press contact shaft (16) provided on the portion (15).

According to the first aspect of the present invention, the positioning operation handle (8) is positioned on the bottom (2b) side of the drive source (2), and the rotation center line of the cutter mounting shaft (3) on the head (2a) side of the drive source (2) Since it is arranged at a position spaced apart from (3a) by a distance (L), for example, a state before fixing in which the drilling machine (1) is inserted between the upper and lower flanges (23a, 23b) of the H-section steel (23) Thus, regardless of the narrow gap between the upper and lower flanges (23a, 23b) and the drive source (2), the positioning operation of the drilling machine (1) can be easily performed only by operating the positioning operation handle (8). It can be carried out. Further, the drilling machine (1) can be positioned with respect to the H-section steel (23) or the like by the positioning part (7) having a simple structure.

  In the invention of claim 2 premised on the invention of claim 1, the positioning portion (7) is arranged on both sides of the cutter mounting shaft (3) on the head (2a) side of the drive source (2). It is installed. In the invention of claim 2, the pair of positioning portions (7) can reliably position the drilling machine (1) with respect to the H-section steel (23) or the like in a balanced manner.

In the invention of claim 3 premised on the invention of claim 1 or claim 2 , the positioning transmission mechanism (9) includes a transmission lever (18) that rotates by the movement of the positioning operation handle (8). The transmission lever (18) is connected to the movable pressure contact body (12) by a sliding pair (15, 22a). In the case of the pair of positioning portions (7) as in the invention of claim 2, the transmission lever (18) has both arm portions (22a) connected to both the movable press contact bodies (12) by sliding pairs. ing.

In the invention of claim 4 based on the invention of claim 1 or claim 2 or claim 3 , the positioning transmission mechanism (9) rotates the rotating shaft (8a) of the positioning operation handle (8). Is provided with a transmission lever (18) that rotates via a male and female screw mechanism (17).

In invention of Claims 3-4, a drilling machine (1) can be positioned with respect to H-section steel (23) etc. by the positioning part (7) of a simple structure.

  The present invention can facilitate the positioning operation of the drilling machine (1) before drilling into a shape steel or the like.

Hereinafter, a punching machine according to an embodiment of the present invention will be described with reference to FIGS.
In this drilling machine 1, the cutter mounting shaft 3 is supported on the head 2 a side of the electric motor 2 (drive source), and the cutter mounting shaft 3 is rotated by the electric motor 2. The cutter mounting shaft 3 is connected to the rotation center line 3a by a perforation amount adjusting handle 4 arranged to extend in the front-rear direction X from the head 2a side (front side) to the buttocks 2b side (rear side) on the outside. It can move in the direction (vertical direction Z). A grip portion 5 is attached to the center of the electric motor 2 in the front-rear direction X at the top. The positioning device 6 attached to the drilling machine 1 includes a positioning unit 7, a positioning operation handle 8, and a positioning transmission mechanism 9, which will be described in detail below.

  The positioning portion 7 is disposed adjacent to the cutter mounting shaft 3 on both sides in the left-right direction Y across the cutter mounting shaft 3 on the head 2 a side of the electric motor 2. In the left and right positioning portions 7, a tubular fixed press contact body 11 is attached to a frame 10 attached to the electric motor 2, and a tubular movable press contact body 12 is attached to the fixed press contact body 11 with a cutter mounting shaft. 3 are inserted and fitted so as to move in the up-down direction Z along the rotation center line 3a and approach and separate from each other. A long hole 13 is formed in the fixed pressure contact body 11, and a movable shaft portion 12 a attached to the movable pressure contact body 12 is inserted so as to be movable in the vertical direction Z with respect to the long hole 13. A compression coil spring 14 (elastic body) fitted inside is interposed between the upper end portion 11 a of the fixed press contact body 11 and the movable shaft portion 12 a of the movable press contact body 12. The movable press contact body 12 of the left and right positioning portions 7 has a press contact shaft 16 that can be attached to and detached from the center portion in the left and right direction Y on the interlocking plate 15 that is installed between the upper end portions. Due to the elastic force of the compression coil spring 14, the press contact shaft 16 of the left and right movable press contact bodies 12 is urged so as to approach the fixed press contact body 11.

  The positioning operation handle 8 is attached to the frame 10 via a male / female screw mechanism 17 at a position spaced apart from the rotation center line 3a of the cutter attachment shaft 3 by a distance L on the bottom portion 2b side of the electric motor 2. ing. This female / male screw mechanism 17 includes a female screw portion 17a formed on the rotation shaft 8a of the positioning operation handle 8 and a male screw portion 17b attached to the frame 10, and this female screw portion 17a is screwed into the male screw portion 17b. Has been.

  The positioning transmission mechanism 9 includes a transmission lever 18 between the positioning operation handle 8 and the positioning portion 7 in addition to the male and female screw mechanism 17. In this transmission lever 18, the arm 20 is supported so as to be rotatable in the vertical direction Z with respect to the left and right ends of the support shaft 19 attached to the frame 10, and is rotated between the rear ends of the left and right arms 20. The male threaded portion 17b is inserted into the interlocking plate 21 that is erected so that the female threaded portion 17a of the positioning operation handle 8 is brought into contact with the interlocking plate 21, and the front end portions of the left and right arms 20 are bifurcated. A plate 22 is attached. The arm portions 22a projecting on both the left and right sides of the front end portion of the pressing plate 22 can come into contact with the lower surface of the interlocking plate 15 of the left and right movable pressure contact bodies 12 so as to be a sliding pair.

  When the positioning operation handle 8 is rotated, the female screw portion 17a is rotated with respect to the male screw portion 17b by the female and male screw mechanism 17, and the interlocking plate 21 moves along the male screw portion 17b while the left and right arms 20 are moved. Is rotated in the vertical direction Z, and the left and right arm portions 22a of the pressing plate 22 abut against the lower surface of the interlocking plate 15 of the left and right movable pressing members 12 while sliding. When the left and right arm portions 22a of the pressing plate 22 move upward, the movable shaft portions 12a of the left and right movable press contact bodies 12 move along the long holes 13 of the left and right fixed press contact bodies 11, while the left and right movable press contact bodies are moved. The twelve interlocking plates 15 are pushed upward against the elastic force of the compression coil spring 14, and the pressure contact shafts 16 of the left and right movable pressure contact bodies 12 also move upward. When the left and right arm portions 22a of the pressing plate 22 move downward, the pressure contact shaft 16 of the left and right movable pressure contact bodies 12 also moves downward due to the elastic force of the compression coil spring 14.

  When drilling into the H-shaped steel 23, first, the drilling machine 1 is inserted between the upper and lower flanges 23a, 23b of the H-shaped steel 23, the frame 10 of the drilling machine 1 is placed on the lower flange 23b, and the cutter is cut. The hole cutter 24 inserted into the mounting shaft 3 is set at the drilling position. Thereafter, when the positioning operation handle 8 is rotated, the press contact shaft 16 of the left and right movable press contact bodies 12 moves upward and is pressed against the upper flange 23 a, and the drilling machine 1 can be fixed to the H-section steel 23. . Next, the cutter mounting shaft 3 is rotated, and the cutter mounting shaft 3 is moved in the direction of the rotation center line 3 a by the punching amount adjusting handle 4 to punch the lower flange 23 b by the hole cutter 24.

It is a side view which shows the punching machine concerning this embodiment. It is a top view which shows the punching machine concerning this embodiment. It is a front view which shows the punching machine concerning this embodiment. It is the fragmentary sectional view which looked at the positioning device of the above-mentioned punching machine from the side.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 1 ... Punching machine, 2 ... Electric motor (drive source), 2a ... Head, 2b ... Bottom part, 3 ... Cutter mounting shaft, 3a ... Rotation center line, 6 ... Positioning device, 7 ... Positioning part, 8 ... Positioning operation Handle, 9 ... Positioning transmission mechanism, 11 ... Fixed pressure contact, 12 ... Movable pressure contact, 14 ... Compression coil spring (elastic body), 15 ... Interlocking plate (sliding pair), 17 ... Female screw mechanism, 18 ... Transmission lever, 22a ... Arm part (sliding pair even).

Claims (4)

In the drilling machine that can rotate the cutter mounting shaft by the driving source and move the cutter mounting shaft in the direction of the rotation center line by the drilling amount adjusting handle,
On the head side where the cutter mounting shaft is disposed with the drive source, a positioning portion is disposed adjacent to the cutter mounting shaft, and on the bottom side which is opposite to the head side with the drive source. Has a positioning operation handle at a position away from the rotation center line of the cutter mounting shaft,
The positioning part is provided with both press contact bodies that move relative to each other in a direction along the rotation center line of the cutter mounting shaft and approach and separate from each other.
Wherein between the positioning operation handle and the positioning unit, it sets the positioning transmission mechanism for transmitting the movement of the positioning operation handle relative movement of the two pressure contact bodies of the positioning unit,
Of the two pressure contacts of the positioning part, one is a fixed pressure contact, and the other is a movable pressure contact, and this is fixed by the elastic force of an elastic body interposed between the fixed pressure contact and the movable pressure contact. The movable pressure contact member is biased so as to approach the pressure contact member, and the movable pressure contact member is separated from the fixed pressure contact member against the elastic force of the elastic member by the movement of the positioning operation handle. A positioning device in a drilling machine characterized by the above. The positioning device for a drilling machine according to claim 1, wherein the positioning portions are disposed on both sides of the cutter mounting shaft on the head side of the drive source. The positioning transmission mechanism comprises a transmission lever which rotates by the movement of the positioning operation handle to claim 1 or claim 2 This transmission lever is characterized in that it is connected by a sliding pair with respect to the movable pressure member A positioning device in the drilling machine described. The said positioning transmission mechanism is provided with the transmission lever which rotates via a male-and-female screw mechanism by rotation of the rotating shaft of the said positioning operation handle, The Claim 1 or Claim 2 or Claim 3 characterized by the above-mentioned. A positioning device in the drilling machine described.

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