JPH07290403A - Boring machine with level block - Google Patents

Abstract

PURPOSE:To prevent the dislocation of a boring position caused by the vibration of a boring machine with a level block. CONSTITUTION:The boring machine is provided with a vice 1 for grasping a material (a) to be worked, a level block 3 to be fitted to the material (a) to be worked movably attached to the vice 1 via a screw 2, a boring device 4 secured to the level block 3, and a rotational-operating handle 5 for the forwarding screw 2 fixed to the vice 1. The rotational-operating handle 5 is disposed in the proximity of the boring device 4 in the form of its handle shaft 5a extended upward. The handle shaft 5a of the rotational-operating handle 5 is attached with a worm, and the forwarding screw 2 is also attached with a worm wheel to be engaged with the worm.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention is a platen capable of moving a platen with respect to a vise device while observing a drilled part of a work material and aligning a blade of a hole punching device on the platen with the drilled part. Perforated punch.

[0002]

2. Description of the Related Art Japanese Unexamined Patent Publication No. 62-6 discloses a perforator having a surface plate.
2701. It comprises a vise device for gripping a work material, a surface plate applied to the work material movably attached to the vise device via a feed screw, and a punching device attached to the surface plate. It will be. A handle is attached to the end of the feed screw, and by turning the feed screw while holding the handle and moving the surface plate with respect to the vise device, the blade of the punching device should be punched on the work material. It can be aligned with the position displayed in black.

However, in this punching machine with a surface plate, since the punching device stands upright on the surface plate and the work material, and the handle is located near the surface plate and the work material, the tip of the cutting tool is placed. During the work of aligning with the position of the black line, the operator has to lean the body, and therefore the line of sight deviates from the black line and the drilling position is likely to be misaligned.

As means for solving such drawbacks, means disclosed in Japanese Patent Application No. 5-3018 and Japanese Patent Application No. 5-279871 have been proposed. This is a configuration in which a handle shaft with a handle is vertically attached to a vise device, and a tip end of the handle shaft and an end of the feed screw are connected via a bevel gear. Therefore, the handle can be operated while watching the black line of the work piece from the surface plate, and the drilling position can be set without removing the line of sight from the black line.

[0005]

However, in the structure using the bevel gear as described above, the relative position between the surface plate and the vise device is deviated by the vibration caused by the driving of the punching device, and the surface of the surface plate is displaced. There is also a possibility that a deviation may occur between the punching device and the material to be processed, causing the drilling position to shift.

Therefore, it is an object of the present invention to provide a punching machine with a surface plate which can prevent the deviation of the holes due to such vibration.

[0007]

In order to achieve the above object, the present invention provides a vise device 1 for holding a workpiece a,
A surface plate 3 which is movably attached to the vise apparatus 1 via a feed screw 2 and which is applied to the workpiece a, a punching device 4 attached to the surface plate 3, and the vise apparatus 1
Rotation operation handle 5 for the feed screw 2 attached to the
In the punching machine with a platen having a rotary plate, the rotary operation handle 5 is provided in the vicinity of the punching device 4 with the handle shaft 5 thereof.
a is arranged so as to face upward, a worm 28 is attached to the handle shaft 5a of the rotary operation handle 5, and a worm wheel 27 that meshes with the worm 28 is attached to the feed screw 2. ing.

[0008]

In the present invention, since the rotary operation handle 5 is arranged in the vicinity of the punching device 4 with its handle shaft 5a facing upward, it is possible to operate the handle 5 while looking at the black line of the workpiece a. Therefore, the blade 16 can be set at the drilling position without removing the line of sight from the black line. Therefore, the tip of the blade 16 and the black line can be properly and promptly aligned.

Further, the handle shaft 5 of the rotary operation handle 5
Since the worm 28 is attached to a and the worm wheel 27 is attached to the feed screw 2, even if the vibration generated by the boring process is transmitted to the surface plate or the like, the worm 28 and the worm wheel 27 are engaged to feed the vibration. The rotation of the screw 2 is blocked. Therefore, it is possible to prevent the positional deviation of the surface plate 3 once adjusted with respect to the work material a, and to perform accurate drilling.

[0010]

Embodiments of the present invention will be described below with reference to the drawings. As shown in FIGS. 1 and 2, this punching machine with a surface plate has a vise device 1 for holding a workpiece a, and the workpiece to be movably attached to the vise device 1 via a feed screw 2. It has a surface plate 3 applied to the material a, a punching device 4 attached to the surface plate 3, and a rotation operation handle 5 of the feed screw 2 attached to the vise device 1.

The vice device 1 comprises two parallel connecting rods 6.
It has two left and right vise brackets 7a and 7b connected to each other (the other is not shown), one vise bracket 7a is provided with a fixed vise, and the other vise bracket 7b is provided with a movable vise 9 with a tightening screw 10. Is attached through. Reference numeral 11 indicates a handle of the tightening screw 10. The vise device 1 is placed so as to straddle the workpiece a and the tightening screw 10 is turned, whereby the workpiece a is sandwiched between the fixed vise 8 and the movable vise 9.

The surface plate 3 is slidably attached to the connecting rod 6, and the lower surface of the surface plate 3 is a surface plate which is applied to the surface of the workpiece a. From the surface plate 3, it is possible to peek at a portion of the workpiece a where a black line is to be punched.

The drilling device 4 is a drill device in the illustrated example, but can be replaced with another drilling tool such as a chain chisel device or a square chisel device. This punching device 4 is a platen 3
It is slidably supported by guide bars 12a and 12b vertically arranged above via a cylindrical holder 13.

As shown in FIG. 3, the guide bars 12a and 12b are vertically fixed to the sliding block bodies 14a and 14b which are respectively applied to the upper and left sides of the upper surface of the surface plate 3 from above, and the upper ends thereof are connected to each other. It is connected by a bracket 15.
A curved surface 32 that contacts the surface plate 3 is formed below the sliding block bodies 14a and 14b. Guide bar 12a, 1
The center line of 2b passes through the center line of curvature of the curved surface 32. The curved surface 33 of the surface plate 3 has the same curvature as the curved surface 32 of the sliding block bodies 14a and 14b, and the center lines of the curvatures coincide with each other. This center line of curvature lies on the surface of the surface plate and is orthogonal to the center line of the blade 16 of the punching device 4. Therefore, these two guide bars 12a and 12b
Is the curved surface 33 of the surface plate 3 of the sliding block bodies 14a and 14b.
By sliding on the surface, the surface plate 3 is inclined in the front-rear direction, and the center line of the blade 11 of the punching device 4 passes through a fixed point on the center line of curvature in the surface plate surface regardless of the inclination angle. .

The movable block bodies 14a and 14b are locked by a tightening screw 17 which penetrates the movable block bodies 14a and 14b into the surface plate 3. Holes 1 in the moving block bodies 14a, 14b through which the tightening screws 17 pass
8 is an elongated hole, and therefore, the moving block bodies 14a, 14
b can be fixed to a desired position on the curved surface 33 of the surface plate 3. An operating lever 19 is fixed to the head of the tightening screw 17. When the operating lever 19 is turned to loosen the tightening screw 17 and the moving block bodies 14a and 14b are slid on the curved surface 33, the guide bars 12a and 12b and the hole punching device 4 are formed as shown by the two-dot chain line in FIG. Can be tilted in the front-back direction of the surface plate 3 by a desired angle. If the operating lever 19 is turned in the opposite direction at that position, the punching device 4 is fixed at the inclined position.

As shown in FIG. 2, the surface plate 3 has an auxiliary device capable of advancing and retracting the hole forming device 4 in a direction inclining together with the guide bars 12a and 12b, that is, in a direction along the front-back direction of the surface plate 3. A base 20 is provided. The auxiliary base 20 is formed in a substantially U shape and is inserted into a guide hole formed in the surface plate 3. As shown in FIG. 2, the guide bar 12
When a and 12b are tilted, the auxiliary base 20 is pulled out of the surface plate 3 along the guide hole and applied to the surface of the work material a to stably support the punching machine. You can

The feed screw 2 of the surface plate 3 is the surface plate 3 in FIG.
As shown in FIG. 4, its right end is rotatably supported by a bearing portion 21 fixed to the upper part of one vise bracket 7b, and its middle portion is fixed to the surface plate 3. It is screwed onto the fixed nut portion 22. The feed screw 2 is supported by the bearing portion 21 by a retaining ring 23 and a worm wheel 27, which will be described later, so as not to slip out. This allows
When the feed screw 2 is rotated while being supported by the bearing portion 21, the surface plate 3 moves in the left-right direction along the connecting rod 6.

The rotary operation handle 5 of the feed screw 2 is
The handle shaft 5a is arranged in the vicinity of the punching device 4 so that the handle shaft 5a faces upward and is parallel to the central axis of the cutting tool 16 of the punching device 4, and as shown in FIGS. A worm gear 25 is interposed between the operation handle 5 and the feed screw 2. More specifically, a gear box 26 integrated with the vise bracket 7b is provided near the bearing portion 21 of the vise bracket 7b,
A handle shaft 5a of the rotary operation handle 5 is vertically supported on the upper portion of the gear box 26 via a bracket 31,
In the gear box 26, a worm 28 is attached to the handle shaft 5a of the rotary operation handle 5, and the worm 28 is attached.
A worm wheel 27 that meshes with the worm 28 is attached to the.

As a result, when the rotary operation handle 5 is turned, the rotation of the worm 28 is transmitted to the worm wheel 27 and the feed screw 2, and the surface plate 3 is moved left and right on the vise device 1 while being guided by the connecting rod 6. The position of the blade 16 on the workpiece a is adjusted. Further, even when the surface plate or the like vibrates during the boring process, the feed screw 2 is locked by the worm 28, so that the position of the once set blade 16 on the workpiece a does not shift in the left-right direction.

Next, the operation of the punching machine with a platen will be described. First, a perforator with a surface plate is placed on the work piece a, and the work piece a is sandwiched by the vise device 1 so as to substantially match the black line drawn on the work surface of the work piece a.

Then, the feed screw 2 is rotated by the rotary operation handle 5 to move the surface plate 3 in the left-right direction so that the shaft center of the blade 16 of the punching device 4 coincides with the center point of the black line. The rotation of the rotary operation handle 5 is transmitted to the feed screw 2 via the worm gear 25, and the surface plate 3 moves in the left-right direction in FIG. The punching device 4 is placed on the surface plate 3, and the tip of the cutting tool 16 also moves together with the surface plate 3 to match the center of the black line of the workpiece a.

The rotary operation handle 5 has a handle shaft 5a in the vicinity of the punching device 4 and the cutting tool 1 of the punching device 4.
Since it is arranged so as to be parallel to the central axis of 6, the operator operates the rotary operation handle 5 while looking at the black line of the workpiece a.
Can be operated, and the cutting edge can be set at the drilling position without removing the line of sight from the black line. Therefore, the tip of the blade 16 and the black line can be properly and promptly aligned.

When making a vertical hole in the work piece a, the punching device 4 may be pushed downward along the guide bars 12a and 12b and the blade 16 may be pressed against the work piece a. To make a hole, perform the following operation. That is, the operating lever 19 is rotated to loosen the tightening screw 17, the moving block bodies 14a and 14b are slid on the curved surface, and as shown in FIG.
The a and 12b and the punching device 4 are tilted in the front-back direction of the surface plate 3 by a desired angle. If the operating lever 19 is turned in the opposite direction at that position, the punching device 4 is fixed at the inclined position. Therefore, the punching device 4 is attached to the guide bars 12a and 12b.
By pushing down along with, it is possible to make an inclined hole inclined by the inclination angle.

[0024]

According to the present invention, since the rotary operation handle is arranged in the vicinity of the punching device so that the handle shaft faces upward, it is possible to operate the handle while looking at the black line of the workpiece a. The blade can be set at the drilling position without removing the line of sight from the black line. Therefore, the position of the tip of the blade and the black line can be properly and promptly adjusted. Further, since the rotary operation handle is close to the punching device as described above, both the rotary operation handle and the handle of the punching device can be gripped, which is convenient for the punching work.

Further, since the worm is attached to the handle shaft of the rotary operation handle and the worm wheel is attached to the feed screw, even if the vibration generated by the drilling is transmitted to the surface plate or the like, the worm and the worm wheel are attached. The rotation of the feed screw is blocked by the engagement with the. Therefore, it is possible to prevent the positional deviation of the surface plate once adjusted with respect to the material to be processed, and perform accurate drilling.

[Brief description of drawings]

FIG. 1 is a front view of a punching machine with a surface plate according to the present invention.

FIG. 2 is a right side view of the punching machine with a platen.

3 is a partially cutaway sectional view taken along line III-III in FIG.

FIG. 4 is a partially cutaway sectional view taken along line IV-IV in FIG.

5 is a partially cutaway sectional view taken along line VV in FIG.

[Explanation of symbols]

 a ... Workpiece material 1 ... Vise device 2 ... Feed screw 3 ... Surface plate 4 ... Hole punching device 5 ... Rotating operation handle 5a ... Handle shaft 25 ... Flexible joint 27 ... Worm wheel 28 ... Worm

Claims (1)

[Claims] 1. A vise device for gripping a work material, a surface plate which is movably attached to the vise device via a feed screw and which is applied to the work material, and a hole which is attached to the surface plate. In a punching machine with a surface plate having a device and a rotating operation handle of the feed screw attached to the vise device, the rotating operation handle has its handle shaft pointing upward in the vicinity of the punching device. A piercer with a platen, wherein a worm is attached to the handle shaft of the rotary operation handle, and a worm wheel meshing with the worm is attached to the feed screw.