WO2019095343A1

WO2019095343A1 - Drilling auxiliary device

Info

Publication number: WO2019095343A1
Application number: PCT/CN2017/111767
Authority: WO
Inventors: 孙生强
Original assignee: 孙生强
Priority date: 2017-11-15
Filing date: 2017-11-18
Publication date: 2019-05-23
Also published as: CN107932187A

Abstract

A drilling auxiliary device for rotatably mounting a second rotating shaft (7) on planes of both sides of a crotch of a U-shaped connector (3) by means of a first bearing (8) and a second bearing (10), cross connection legs (9) being fixedly mounted, by means of a rotation stopper key (11), on the second rotating shaft between the two parts of the crotch of the U-shaped connector, the cross connection legs being in an inside corner structure with equilateral sides, the inner sides of the two sides of the cross connection legs each being in a planar structure, a pointer (5) being fixedly mounted on one end of the second rotating shaft by means of a fixing nut (6), a graduation line (4) being provided on the plane of the U-shaped connector at a position corresponding to the pointer, a first rotating shaft (2) being rotatably provided at the center position of the joint portion of the U-shaped connector, the top protruding portion of the first rotating shaft being connected and fixed to the bottom center of a tapered handle (1) in a threaded connection manner. Said drilling auxiliary device can improve the labor productivity, reduce the cost of manufacturing parts, and has the advantage of good versatility.

Description

Drilling aid

Technical field

The invention relates to a drilling aid, belonging to the technical field of machine tool accessories.

Background technique

For many shaft parts, one or several holes passing through the diameter position need to be drilled in the outer circle. In order to prevent the drilled hole from deviating from the diameter position, it is generally necessary to make special adjustments to the drilling machine, and special tooling is used for positioning purposes. Class tooling not only has a complicated structure, but also has poor versatility, resulting in more tooling varieties and higher processing costs of parts, especially for the production of multi-variety and small-volume parts.

Summary of the invention

The object of the present invention is to provide a drilling attachment for the above-mentioned defects existing in the prior art, which can be used not only when passing through a diameter position hole on the outer circumference of the drill shaft component, but also by using the drilling aid. It increases the productivity of labor, reduces the manufacturing cost of parts, and has the advantage of being more versatile.

The technical solution adopted by the present invention to achieve the above object is: a drilling aid, which is a taper shank (1), a first rotating shaft (2), a U-shaped connecting head (3), and a scale line (4). ), the pointer (5), the fixing nut (6), the second rotating shaft (7), the first bearing (8), the jumper leg (9), the second bearing (10), and the rotation stop button (11), The U-shaped connector (3) is a letter U-shaped structure, and the second rotating shaft (7) is rotatably mounted on the U-shaped connector (3) through the first bearing (2) and the second bearing (3). On the plane on both sides of the opening, the second shaft (7) between the openings of the U-shaped connector (3) is fixedly mounted by the rotation stop button (11). The jumper leg (9) is an equilateral inner corner structure, and the inner side of the two sides of the jumper leg (9) is a flat structure, and the second shaft (7) is One end is fixedly mounted with a pointer (5) by a fixing nut (6), and a scale line (4) is formed on the plane of the U-shaped connector (3) corresponding to the pointer (5), in the U-shaped connector (3) The central axis of the bridge is in a vertical state, and the angle bisector of the angle formed by the two sides of the jumper leg (9) coincides with the central axis of the U-shaped connector (3), and the pointer (5) points to the scale line (4). At a midpoint, a first rotating shaft (2) is rotatably disposed at a center position of the joint portion of the U-shaped connecting head (3), and the first rotating shaft (2) is protruded from the top portion, and is screwed to the taper shank ( 1) The bottom center connection is fixed together.

The use process and the use method of the invention are: pre-installing and fixing the shaft to be processed horizontally on the workbench of the drilling machine, and installing part of the device through the taper shank (1) in the spindle hole of the drill-mounted drill bit, adjusting the drilling machine The position of the rocker arm and the main shaft is such that the two sides of the jumper foot (9) ride on the outer circumference of the workpiece to be processed, and further adjust the position of the rocker arm and the main shaft of the drill press so that the pointer (5) points to the middle position. At this time, the spindle axis of the drilling machine passes through the diameter position of the workpiece. At this time, the machine tool is locked, the device is removed and replaced with a drill bit, and the machining can be performed.

Advantageous Effects: According to the use process and the use method of the present invention, the present invention can use workpieces of different diameters, and the adjustment efficiency is high. Therefore, the present invention can improve labor productivity, reduce manufacturing cost of parts, and is particularly versatile. The advantages.

DRAWINGS

Figure 1 is a front view of the present invention;

Figure 2 is a cross-sectional view taken along line A-A of Figure 1;

The figure shows: 1 is a taper shank, 2 is a first rotating shaft, 3 is a U-shaped connecting head, 4 is a scale line, 5 is a pointer, 6 is a fixing nut, 7 is a second rotating shaft, 8 is a first bearing, 9 It is a jumper, 10 is a second bearing, and 11 is a stop button.

Detailed ways

1 and 2, a specific embodiment of the present invention is:

A drilling aid, which is composed of a taper shank (1), a first rotating shaft (2), a U-shaped connecting head (3), a scale line (4), a pointer (5), a fixing nut (6), and a second The rotating shaft (7), the first bearing (8), the jumper leg (9), the second bearing (10), and the rotation stop button (11), the U-shaped connector (3) is a letter U-shaped Structure, the second rotating shaft (7) is rotatably mounted on the plane on both sides of the opening of the U-shaped connecting head (3) through the first bearing (2) and the second bearing (3), in the U-shaped connecting head (3) The second shaft (7) between the openings is fixedly mounted with a jumper (9) by a stop button (11), the jumper foot (9) being an equilateral inner corner structure, The inner side of the two legs (9) is a flat structure, and one end of the second rotating shaft (7) is fixedly mounted with a fixing nut (6) with a pointer (5), and a U-shaped portion corresponding to the pointer (5) The plane of the connector (3) is provided with a tick mark (4). When the central axis of the U-shaped connector (3) is in a vertical state, the angle bisector and U of the angle formed by the two sides of the jumper leg (9) The center axis of the type connector (3) coincides, and the pointer (5) points to the midpoint of the scale line (4) at the center of the U-joint (3) joint A first rotatably disposed spindle (2), said first shaft (2) a top projecting portion, by way of a threaded connection to the taper shank (1) are connected together at the bottom center.

Claims

A drilling aid, which is composed of a taper shank (1), a first rotating shaft (2), a U-shaped connecting head (3), a scale line (4), a pointer (5), a fixing nut (6), and a second The rotating shaft (7), the first bearing (8), the jumper leg (9), the second bearing (10), and the rotation stop button (11) are characterized in that: the U-shaped connector (3) is The U-shaped structure, the second rotating shaft (7) is rotatably mounted on the plane on both sides of the opening of the U-shaped connecting head (3) through the first bearing (2) and the second bearing (3), in the U-shape The second rotating shaft (7) between the opening of the connecting head (3) is fixedly mounted with a jumper leg (9) via a stop button (11), and a fixing nut (6) is provided at one end of the second rotating shaft (7). A pointer (5) is fixedly mounted, and a scale line (4) is formed on a plane of the U-shaped connector (3) corresponding to the pointer (5), and is rotatable at a center position of the joint portion of the U-shaped connector (3). A first rotating shaft (2) is disposed, and the top protruding portion of the first rotating shaft (2) is fixedly connected with the bottom center of the taper shank (1) by screwing.
A drilling aid according to claim 1, characterized in that, in the vertical state of the central axis of the U-shaped connector (3), the angle of the angle formed by the two sides of the jumper leg (9) is equally divided The line coincides with the central axis of the U-shaped connector (3), while the pointer (5) points to the midpoint of the scale line (4).
A drilling aid according to claim 1, wherein said bridging leg (9) is an equilateral inner corner structure, and said two sides of said bridging leg (9) are Flat structure.