KR100761039B1 - A grinding apparatus of inner hole - Google Patents

Abstract

A grinding machine of an inner hole is provided to facilitate deburring and chamfering inside a main hole of a machine component by rotating an arc-shaped grinding unit in every direction by a predetermined range of angle. A grinding machine of an inner hole comprises a circular support(50), a shaft transfer unit(150), an arc-shaped grinding unit(190), and a handle(220). The circular support includes arms(40) with an angle of 120 degrees to be inserted and fixed into a main hole of a machine component, an adjusting bolt(70) having a vertically rotatable jaw(80) and making contact with the upper part of the main hole by mounting a hinge unit(60), and a stop bolt(90) on a lower side of the hinge, whose end portion pushes the jaw to rotate in the upward direction. The shaft transfer unit freely rotates a slide shaft(140) in every direction by having a spherical bearing on an outer surface of a shaft fixing piece that has a plurality of sliding bearings(120) on the periphery of a shaft through hole that is formed in the center of the circular support. The arc-shaped grinding unit includes a cap mounted on the upper side of a housing(160) on the slide shaft to communicate a rotary shaft that is connected to an inside power, wherein the arc-shaped grinding unit is installed at the end of the rotary shaft to grind and remove the burr on the periphery of a hole of the main hole. The handle is installed on a sleeve shaft(210) that is assembled and disassembled by mounting a joint part(200) which is jointed by a connection bolt at the end of the slide shaft.

Description

Inner Hole Mapping Device for Equipment Parts {A Grinding Apparatus of Inner Hole}

1 is a view illustrating the internal structure of a main hole of a general device component.

Figure 2 is a front sectional structural view of the finishing apparatus is inserted and fixed inside the main hole of the device component according to the present invention.

3 is a cross-sectional structural view of the main portion of the shaft feeder provided on the slide shaft of the finishing apparatus of the present invention.

Figure 4 is a schematic perspective view of the finishing apparatus is inserted and fixed inside the main hole of the device component of the present invention.

5 is a yaw structure diagram of jaws installed on the upper arm of the circular support of the present invention.

Figure 6a and 6b is a schematic perspective view of the main portion of the finishing apparatus inserted and fixed in the main hole of the present invention and a state of removing the burr around the hole through the arc-shaped grinding portion.

Explanation of symbols on the main parts of the drawings

10 ... Machine parts 20 ... Main hole

30.Hall 31 ... Bur

40, 40a, 40b ... arm 50 ... circular support

60 Hinge 70 Adjusting bolt

80 ... Jaw 90 ... Stop Bolt

100 ... pad section 110 ... shaft through hole

120 ... sliding bearing 130 ... shaft fixture

140 ... slide shaft 150 ... axis feed

160 ... housing 170 ... rotation shaft

180 ... cap 190 ... arc grinding part

200 ... Joint 210 ... Sleeve Shaft

220 ... handle 230 ... spherical bearing

The present invention easily and easily removes a burr generated after machining of a main hole formed in a machine part such as a front head of a breaker mounted on an excavator through a grinding machine. The present invention relates to a device for internal hole finishing of an appliance part, in particular, during a finishing operation of a burr around the periphery of a hole formed in the main hole of the machine part, at a 120 degree angle to a circular support inserted into the main hole. After the slide shaft is connected to and installed through the arm, an arc grinding part is installed on the slide shaft through a housing, and the arc grinding part is freely rotated back, forth, up, down, left, and right by an axis conveying part, and the hole inside the main hole. It frees the burr removal and chamfer grinding work formed at the periphery, as well as confined space in the main hole. The operator can easily and easily remove the burr and chamfer of the hole without having to put his hand in hand, and further improves the burr removal and chamfering efficiency of the periphery of the hole. The present invention relates to a device for internal hole mapping of equipment parts to prevent assembly defects of equipment parts in advance.

In general, in the case of machine parts such as a front head of a breaker mounted on an excavator, as shown in FIG. 1, after machining a hole in a main hole of the machine part, a hydraulic system or the like is provided through the hole. In this case, a burr 31 (Bur) generated after processing is formed at a peripheral edge of the hole 30 processed in the main hole 20 of the device component 10.

As described above, the burr 40 formed at the periphery of the hole 30 uses a hand-held grinder or the like to directly insert a worker into the main hole 20 to perform finishing processing using a hand-held grinder (not shown). Most of the removal of the burr 31 around the hole 30 through.

However, when a worker puts his hand inside the main hole 20 of the machine part and finishes the periphery of the hole 30, a safety accident occurs when the worker directly touches in a narrow space of the main hole 20 by hand. Of course, the fatigue of the operator is increased, and accordingly, the burr removal work efficiency of the periphery of the hole 30 is deteriorated.

Particularly, when the hand is placed in the narrow space of the main hole 20, the finishing work on the periphery of the hole 30 cannot be visually confirmed, and the burr around the hole cannot be removed properly, and accordingly, the parts of the device There was a lot of problems, such as that will lead to poor assembly.

The present invention has been made in order to improve the above-mentioned conventional problems, the object of which is to insert the inside of the main hole when drawing the burr of the periphery of the hole formed in the main hole (Main Hole) of the device parts The slide shaft is connected to the support through an arm that is extended at an angle of 120 degrees, and an arc grinding part is installed on the slide shaft through a housing, and the arc grinding part is freely rotated back, forth, up, down, left, and right by an axis conveying part. In addition, the burr removal and chamfer grinding work formed at the periphery of the hole inside the main hole can be freely performed, and thus, the burr removal and chamfering of the hole can be performed easily and easily without the need for the operator to manually insert a hand in the narrow space of the main hole. Of burr removal and chamfering at the periphery of the hole As well as improving gailcheung, to provide a device of the hole spirit machine part that prevents the defective assembly of parts, the device perfectly performs the task of removing the burrs from occurring.

As a technical means for achieving the above object, the present invention, the arms are inserted into the main hole of the device parts, and the arms are addressed at an angle of 120 degrees so as to be fixed, and the upper part of the arms to be delivered to the upper side through the hinge portion An adjustment bolt contacting the upper end of the hole is installed so as to be rotatable up and down via a jaw, and a stop bolt is provided at the lower side of the hinge portion of the arm so that an end thereof is pushed to the jaw to rotate upward;

At the periphery of the shaft through-hole formed in the center of the circular support, a shaft fixture is installed through a plurality of sliding bearings, and a spherical bearing is installed on the outer surface of the shaft fixture, and the slide shaft inserted into the shaft through-hole of the circular support is moved forward and backward and Axis feed unit is installed so as to rotate freely up and down, left and right a certain angle;

An arc-shaped grinding part installed on the slide shaft so that a rotating shaft which is extended to the inside of the housing is inserted into the housing installed on the slide shaft, and one end of the rotating shaft is installed by removing a burr around the hole formed in the main hole;

The handle is mounted on the sleeve shaft to be separated and coupled via the coupling portion coupled to one end of the slide shaft as a coupling bolt; by providing the inner hole mapping device of the device component, characterized in that it comprises a.

In addition, the present invention is characterized in that the pads are respectively mounted on the bottom of the arm that is spoken at an angle of 120 degrees to the lower both sides of the arm that are spoken at an angle of 120 degrees to the circular support to be fixed inside the main hole of the device component.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

2 is a front sectional structural view of a finishing apparatus inserted into and fixed inside a main hole of an apparatus part according to the present invention, and FIG. 5 is a schematic perspective view of a finishing apparatus inserted into and fixed inside a main hole of a device part of the present invention, and FIG. 5 is a main structural diagram of a jaw installed in an upper arm of the circular support of the present invention, and the main hole 20 of the device part 10 is shown. The upper part of the main hole 20 through the hinge portion 60 at the upper part of the arm 40b that is inserted into the upper part of the circular support 50 to which the arm 40 is spoken at an angle of 120 degrees so as to be fixed. The adjusting bolt 70 in contact with each other is installed to be able to rotate up and down via the jaw 80, and a stop bolt 90 is protruded below the hinge portion 60 of the arm 40b so that the end thereof is the jaw 80. Installed) to rotate .

At this time, the pad portion 100 is installed at the bottom of the arm 40a that is spoken at an angle of 120 degrees to both lower sides of the arm 40 that is spoken at an angle of 120 degrees to the circular support 50.

In addition, the shaft fastener 130 is installed at the periphery of the shaft through hole 110 formed at the center of the circular support 50 through a plurality of sliding bearings 120, and the spherical bearing ( 230 is installed, the shaft feeder 150 is installed so that the slide shaft 140 inserted into the shaft through-hole 110 of the circular support 50 back and forth, vertically and horizontally freely rotated at a predetermined angle.

In addition, the cap 180 is installed so that the rotary shaft 170 is inserted into the housing 160, which is installed on the slide shaft 140, and the power shaft is pushed therein, and the main hole 20 is formed at one end of the rotary shaft 170. The arc-shaped grinding part 190 is rotatably installed to remove the burr 31 around the periphery of the hole 30 formed in the coupling part, and the coupling part 200 coupled to one end of the slide shaft 140 as a coupling bolt. It consists of a configuration in which the handle 220 is installed on the sleeve shaft 210 to be separated and coupled via the.

Referring to the operation and effect of the present invention made of such a configuration as follows.

As shown in FIGS. 2 to 5, when the burr 31 around the periphery of the hole 30 processed in the main hole 20 of the device component 10 is removed, the main hole 20 may be removed. The circular support 50 is inserted into a proper position. At this time, the arm 40a that is spoken at an angle of 120 degrees to both sides of the lower portion of the arm 40 that is spoken at an angle of 120 degrees to the outside of the circular support 50 is inserted into the main hole. After positioning, adjust the adjustment bolt 70 installed in the upper portion of the arm (40b) to the upper side of the circular support 50 via the hinge portion 60 slightly smaller than the inner diameter of the main hole in advance When inserted into the hole and the stop bolt 90 located below the hinge portion 60 of the arm 40b is turned, the jaw 80 having the end portion of the stop bolt 90 coupled as the hinge portion 60 is rotated. ) To rotate to the top, and accordingly the adjustment bolt 70 is in close contact with the upper part of the main hole, the circular support 50 is the main hole 20 It is fixed to the unit.

The circular support 50 is a state in which the slide shaft 140 is inserted into the shaft through-hole 110 formed at the center thereof, and the shaft fixing device 130 is installed on the circumference of the circular support 50 via a plurality of sliding bearings 120. The spherical bearing 230 is installed on an outer surface of the shaft fastener 130 so that the slide shaft 140 inserted into the shaft through hole 110 of the circular support can be moved forward and backward. The spherical bearing 230 is installed on the outer surface of the 130 to allow the slide shaft 140 to freely rotate up and down and left and right at an angle.

At this time, the upper rotating housing 170 is installed on the slide shaft 140, the rotating shaft 170, which is extended to the power supply is inserted into one side via the cap 180, the one end of the rotating shaft 170 arc-shaped grinding As the part 190 is rotatably installed, as shown in FIGS. 6A and 6B, the periphery of the hole 30 formed in the main hole 20 is rotated forward and backward, up and down, left and right, as shown in FIGS. 6A and 6B. Burr (31) of the easy and easy to be mapped to be removed.

On the other hand, the handle 220 is installed on the sleeve shaft 210 to be separated and coupled via the coupling portion 200 coupled as a coupling bolt to one end of the slide shaft 140, thereby the handle 220 By moving freely forward and backward, up and down, left and right, the slide shaft 140 inside the operator main hole 20 by using the arc grinding portion 190 installed through the housing 160 on the slide shaft 140 The burr 31 around the hole 30 can be removed.

As described above, according to the present invention, the internal hole finishing apparatus of the machine part includes an arm that is spoken at an angle of 120 degrees to a circular support inserted into the main hole when the burr periphery of the hole formed in the main hole of the machine part is finished. After connecting the slide shaft through the installation, the arc-shaped grinding portion is installed on the slide shaft through the housing, the arc-shaped grinding portion is rotated freely back and forth and left and right through the shaft transfer portion, and formed on the periphery of the hole in the main hole In addition to freely removing and chamfering grinding operations, the burr removal and chamfering of the holes can be easily and easily performed in the narrow space of the main hole. Burr removal and chamfering work efficiency is further improved, the removal of the burr Perfectly done up with a superior effect to prevent the failure of the assembled device parts in advance.

While the invention has been shown and described with respect to specific embodiments thereof, it will be appreciated that various changes and modifications can be made in the art without departing from the spirit or scope of the invention as set forth in the following claims. Those of ordinary skill will want to know easily.

Claims (2)

The arm 40 is inserted into the main hole 20 of the device part 10 at an angle of 120 degrees so as to be fixed, and the upper part of the arm 40b that is extended to the upper side is hinged through a hinge part 60. The adjusting bolt 70 in contact with the upper end of the hole 20 is installed to be rotatable up and down via the jaw 80, and the stop bolt 90 is protruded below the hinge portion 60 of the arm 40b. A circular support 50 whose end portion is installed to rotate the jaw 80 to rotate upward; At the circumference of the shaft through hole 110 formed at the center of the circular support 50, the shaft fixture 130 is installed via a plurality of sliding bearings 120, and the spherical bearing 230 is formed on the outer surface of the shaft fixture 130. Is installed, the shaft feeder 150 is installed to rotate freely before and after, up and down, left and right, the slide shaft 140 inserted into the shaft through-hole 110 of the circular support 50; The cap 180 is installed so that the rotating shaft 170, which is in communication with the power supply, is inserted into the housing 160 installed on the slide shaft 140, and the main hole 20 is disposed at one end of the rotating shaft 170. An arc grinding part 190 installed to remove the burr 31 at the periphery of the formed hole 30; And a handle 220 mounted on the sleeve shaft 210 to be separated and coupled through the coupling portion 200 coupled as the coupling bolt to one end of the slide shaft 140. Internal hole mapping device for parts. The bottom of the arm 40a, which is spoken at an angle of 120 degrees to the lower both sides of the arm 40, which is spoken to the circular support 50 at an angle of 120 degrees, so that the pad portions 100 are respectively installed. Inner hole finishing device of the device parts, characterized in that.

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