KR20220165361A - Automatic nut supply apparatus for vertical direction tapping machining of nut - Google Patents

Abstract

The present invention relates to an automatic nut supply apparatus for the vertical tapping machining of a nut, which is able to perform the tapping machining in a vertical, not a horizontal, direction for a chamfered nut, allow cut pieces to fall down to a lower side instead of being stacked on a tapping tool, and prevent the tapping tool from being damaged and the tapping machining of the nut from having defects. According to one embodiment of the present invention, the automatic nut supply apparatus for the vertical tapping machining of a nut comprises: a horizontal transfer line having an inlet formed on one side, wherein a nut with a chamfered damaged hole unit is inputted through the inlet, and having a damaged hole unit alignment unit protruding so that the damaged hole unit can be vertically aligned; a horizontal transfer cylinder installed on a rear side of the horizontal transfer line and pushing and moving the nut forward; a vertical transfer line installed on a front end unit of the horizontal transfer line to communicate therewith; a nut settlement unit arranged to be able to enter and exit from the vertical transfer line, and allowing the nut transferred from the horizontal transfer line to be initially settled and supported; a settlement unit moving cylinder installed in front of the vertical transfer line, and making the nut settlement unit enter and exit from the vertical transfer line; an elevation means vertically movably installed on a lower side of the vertical transfer line, and upwardly moving the nut which has freely fallen as the nut settlement unit moves; and a nut pressing and gripping unit installed on an upper side of the vertical transfer line to be elastically tilted inwards by a pressing gripping spring, and pressing and gripping the nut so that the nut cannot fall down when the elevation means moves downwards.

Description

Automatic nut supply apparatus for vertical direction tapping machining of nut}

The present invention relates to an automatic nut feeding device of a tapping machine, and more particularly, to a chamfered nut, tap processing is performed in a vertical direction rather than a horizontal direction, so that the cutting material is not stacked on the tap tool and falls downward. It relates to an automatic nut feeding device for vertical direction tapping of a nut to prevent tool damage and nut tap machining failure.

In general, when assembling parts of machinery or industrial equipment, bolts and nuts are mainly used. To form a screw hole in metal, first drill a hole slightly smaller than the outer diameter of the bolt to be inserted into the screw hole to form a through hole. Then, a tap having appropriate dimensions corresponding to the through hole is inserted into the through hole and rotated while supplying lubricating oil or cutting oil at a low speed to form a screw thread that is screwed into the bolt according to the size and shape of the screw of the tap on the inner surface of the through hole. do.

However, in order to perform tap processing to form a thread, manual work is required or a dedicated tapping machine is used. Since manual work involves tapping by manually rotating the tap tool, it is difficult to achieve sophisticated work and work efficiency is low, so expensive tap tools are required. There was an unreasonable disadvantage because there was a negative end to damage and it was difficult to work on the vertical surface or ceiling.

In addition, in the case of a dedicated tapping machine that automatically rotates the tap tool and processes the nut thread, the tapping operation is simple and precise machining is possible. There was a downside, of course, that the production cost increased due to the labor cost burden.

In addition, there is a problem that a defective product may be generated when the operator fails to accurately supply the nut to the tapping machine in the direction of the inner diameter where the thread is to be formed.

In order to solve this problem, Korean Patent Registration Publication No. 10-1291620 (July 25, 2013) discloses a base plate, a moving plate installed on the base plate to be horizontally movable, and a moving plate installed on the base plate. A first cylinder mechanism located behind the plate and horizontally moving the movable plate depending on whether it is operated, a nut supply means installed at the center of the movable plate and sequentially supplying nuts, and rotatably installed in front of the movable plate A fixing jig for fixing and gripping the nuts individually supplied through the nut supply means according to whether or not it rotates, and horizontally movable installed on both sides of the nut supply means, but the front part is divided into both sides and the rear part is connected to a "c" shape. A push rod member formed in a shape and both ends of which pressurize and rotate the fixed jig depending on whether it moves horizontally, and is installed on the moving plate and is located behind the push rod member to horizontally move the push rod member depending on whether it is operated or not. An automatic nut feeding device for a tapping machine is disclosed, characterized in that a second cylinder mechanism is included.

In addition, in Korean Patent Registration Publication No. 10-1786723 (October 11, 2017), a nut with a chamfered hole is inserted into the upper part, and a first horizontal supply line supplied to the front is formed extending forward, and the first horizontal supply line At the front end, a vertical supply line through which the nut falls is formed extending downward, and at the lower end of the vertical supply line, a nut supply main body having a second horizontal supply line extending forward, and a lower side of the vertical supply line of the nut supply main body. unit supply means for supplying the nuts that fall through the vertical supply line one by one, coupled to the rear elastically deflected and each time it is moved forward, and is coupled to the lower side of the nut supply main body to supply the second horizontal supply A nut guide that is horizontally arranged on the line and supports the nut supplied by the unit supply means from the lower part and rolls the nut down the second horizontal supply line so that the hole part is arranged in the forward and backward direction, and the nut supply body It is installed to be movable in the forward and backward directions, and when moving forward, the unit supply means is pressed and moved forward, and the nut located on the nut guide is pushed so that it rolls down to the second horizontal supply line, and then is transferred forward to perform screw processing A forward transfer means for supporting the nut falling from the unit supply means at the bottom and dropping the nut to the nut guide when moving backward, and a second horizontal supply line of the nut supply main body. Disclosed is an automatic nut feeding device for a tapping machine, which is elastically biased inwardly on both sides and includes pressing and rotation preventing means for pressurizing and supporting the nut so that the nut is not rotated when the nut is forwardly transported by the forward conveying means.

However, as described above, in the conventional tapping machine, the tapping process of the nut is performed in a horizontal direction by the tap tool located on the side or front when the nut is supplied, so that the cut part during tap machining is accumulated in the tap tool or the tapping machine. There was a problem that the tool was damaged or a defect in the tap processing form occurred.

1. Korean Patent Registration No. 10-1291620 (2013.07.25.) 2. Korean Patent Registration No. 10-1786723 (October 11, 2017)

Therefore, in the present invention, tap processing is performed in the vertical direction rather than the horizontal direction for the chamfered nut, so that the cutting material is not stacked on the tap tool and falls downward, so that the tap tool does not break and the nut tap processing defect does not occur. It is an object of the present invention to provide an automatic nut feeding device for vertical tapping of a nut.

In order to achieve the above object, the present invention, on one side, an inlet into which a nut with a chamfered hole is inserted is formed, and on the bottom surface, a horizontal hole alignment tool protruding so that the hole is aligned in the vertical direction by holding the hole A transfer line, a horizontal transfer cylinder installed at the rear of the horizontal transfer line and pushing the nut forward, a vertical transfer line installed in communication with the front end of the horizontal transfer line, and withdrawable into the vertical transfer line. A nut seating portion provided and in which the nut transferred from the horizontal transfer line is initially seated and supported, a seating portion moving cylinder installed in front of the vertical transfer line and withdrawing and withdrawing the nut seating portion with respect to the vertical transfer line, and the vertical An upward moving means installed on the lower side of the transfer line to be able to move up and down and moving the freely fallen nut upward according to the movement of the nut seating part, and installed on the upper side of the vertical transfer line to be elastically deflected inward by a pressure gripping spring. And it provides a nut automatic feeding device for vertical direction tap processing of the nut, characterized in that it includes a nut pressing gripper for pressing and holding the nut so that the nut does not fall when the upward moving means is moved downward.

In the present invention, a side pressure plate is installed on the other side of the horizontal transfer line to be elastically biased inward by a pressure alignment spring and presses the side surface of the nut so that the nut does not rotate.

In the present invention, the rear end of the hole alignment tool is to be formed to be inclined upward toward the front.

In the present invention, the seating portion moving cylinder is arranged in an upward direction in front of the vertical transfer line to move the nut seating portion upwardly to place it within the vertical transfer line or to move the nut seating portion obliquely downward to move it away from the vertical transfer line. do it to get out.

In the present invention, the upward moving means is installed to be movable up and down on the lower side of the vertical transfer line and is connected to the lower end of the nut support member and a nut support member supporting the lower end of the nut that freely falls in accordance with the movement of the nut seating portion A bracket and a vertical transmission cylinder for vertically moving the bracket are included.

In the present invention, the upward moving means further includes a guide protrusion provided on one side of the bracket and a guide rail arranged on a side surface of the vertical transfer line and guiding the vertical movement of the guide protrusion.

In the present invention, the nut pressing gripper is to be formed with a tapered portion at the lower end so that the nut is smoothly pressed and gripped.

In the automatic nut feeding device for vertical tap processing of a nut according to the present invention, tap processing proceeds in a vertical direction rather than a horizontal direction with respect to a chamfered nut, so that the cutting material is not stacked on the tap tool and falls downward. There is an advantage in that tool damage and nut tap machining failure do not occur.

1 is a perspective view of an automatic nut feeding device for vertical tapping of a nut according to an embodiment of the present invention.
Figure 2 is a partial side view of an automatic nut feeding device for vertical tapping of a nut according to an embodiment of the present invention.
3 is a detailed view of a horizontal transfer line and a vertical transfer line of an automatic nut feeding device for vertical tap processing of a nut according to an embodiment of the present invention.
4 is an operation diagram of a nut seating portion and a seating portion movable cylinder in an automatic nut feeding device for vertical tapping of a nut according to an embodiment of the present invention.
5 is an operation diagram of a lifting means and a nut pressing device in an automatic nut feeding device for vertical tapping of a nut according to an embodiment of the present invention.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. However, this is intended to be described in detail to the extent that a person skilled in the art can easily practice the invention, but does not mean that the technical spirit and scope of the present invention are limited thereby.

1 is a perspective view of an automatic nut feeding device for vertical tapping of a nut according to an embodiment of the present invention, and FIG. 2 is an automatic nut feeding device for vertical tapping of a nut according to an embodiment of the present invention. 3 is a partial side view of, Figure 3 is a detailed view of the horizontal transfer line and vertical transfer line of the automatic nut feeder for vertical tap processing of the nut according to an embodiment of the present invention, Figure 4 is an embodiment of the present invention In the automatic nut feeding device for vertical tap processing of a nut according to, an operation diagram of a nut seating portion and a seating portion moving cylinder, FIG. 5 is a nut for vertical tapping of a nut according to an embodiment of the present invention. In the automatic feeding device, it is an operation diagram of the lifting means and the nut pressing gripper.

In the automatic nut feeding device for vertical tapping of a nut according to an embodiment of the present invention, an inlet into which a nut with a chamfered hole is inserted is formed on one side, and the hole is tied to the bottom surface to align in the vertical direction. A horizontal transfer line in which a perforated alignment sphere is formed to protrude, a horizontal transfer cylinder installed at the rear of the horizontal transfer line and pushing the nut forward to move it, and a vertical installed in communication with the front end of the horizontal transfer line. A transfer line, a nut seating portion provided to be deposited and retracted into the vertical transfer line and in which the nut transferred from the horizontal transfer line is first seated and supported, and installed in front of the vertical transfer line, the nut is seated with respect to the vertical transfer line A seating part moving cylinder for withdrawing and withdrawing a part, an upward moving means installed to be movable up and down on the lower side of the vertical transfer line and moving the freely fallen nut upward according to the movement of the nut seating part, and an upper part of the vertical transfer line. It is characterized in that it includes a nut pressing gripper that is installed to be elastically biased inward by a pressing gripping spring and pressurizes and grips the nut so that the nut does not fall when the upward moving means moves downward.

From here on, with reference to FIGS. 1 to 5, the components of the automatic nut feeding device for vertical tapping of a nut according to an embodiment of the present invention and the connection relationship between the components will be described in detail. .

An automatic nut feeder 1 for vertical tapping of a nut according to an embodiment of the present invention includes a horizontal transfer line 10, a horizontal transfer cylinder 20, as shown in FIGS. 1 to 5, It includes a vertical transfer line 30, a nut seating portion 40, a seating portion moving cylinder 50, an upward moving means 60, and a nut pressing gripper 70.

Here, the horizontal transfer line 10 is a line in which the nut 100 with the chamfered hole part 101 is automatically introduced before tap processing so that the hole part 101 is aligned in the vertical direction, and has a channel shape with an open top. has,

On one side, an inlet 11 into which the nut 100 with the chamfered hole 101 is inserted is formed, and the hole part 101 is tied to the bottom surface, especially in the center of the bottom surface, so that the hole part 101 is aligned in the vertical direction. (12) protrudes.

The hole part aligner 12 is rotated when the nut 100 injected into the horizontal transfer line 10 is pushed by the horizontal transfer cylinder 20 so that the hole part 101 moves to the rear of the hole part aligner 12 The rear end is formed to be inclined upward toward the front so that the hole part 101 is aligned in the vertical direction by climbing up the end.

A horizontal transfer cylinder 20 is installed behind the horizontal transfer line 10 described above. The horizontal transfer cylinder 20 moves the nut 100 introduced into the horizontal transfer line 10 through the inlet 11 to the vertical transfer line 30 along the horizontal transfer line 10 into the horizontal transfer line 10. It serves to push and move the introduced nut 100 forward, and may be formed as a conventional pneumatic cylinder.

It is preferable that a curved portion corresponding to the outer circumferential surface of the nut 100 is formed at the front end of the piston rod of the horizontal transfer cylinder 20 .

A vertical transfer line 30 is installed in communication with the front end of the horizontal transfer line 10 described above. The vertical transfer line 30 is a line that allows the nut 100 supplied from the horizontal transfer line 10 to be vertically transferred upward and held under pressure, and has a square passage shape.

The front end of the horizontal transfer line 10 is preferably connected to the middle height of the vertical transfer line 30.

Into the vertical transfer line 30 described above, the nut seating portion 40 is provided to be retractable. In the nut seating part 40, the nut 100 transferred from the horizontal transfer line 10 into the vertical transfer line 30 is initially seated and supported in a state in which the hole part 101 is aligned in the vertical direction, which will be described later. The seating portion is positioned within the vertical transfer line 30 by the moving cylinder 50 to support the nut 100 and then comes out of the vertical transfer line 30 again and allows the nut 100 to fall freely.

In order to withdraw and withdraw the nut seat 40 from the aforementioned vertical transfer line 30, a seat moving cylinder 50 is installed in front of the vertical transfer line 30.

As the seat moving cylinder 50 is arranged horizontally in front of the vertical transfer line 30, the nut 100 is not rotated when the nut seat 40 comes out of the vertical transfer line 30, It is preferable that the nut 100 is not rotated when the nut seating part 40 comes out of the vertical transfer line 30 as it is arranged upwardly in the front of the vertical transfer line 30 .

In this case, the seating portion moving cylinder 50 moves the nut seating portion 40 upward and places it in the vertical transfer line 30, or moves the nut seating portion 40 obliquely downward to remove it from the vertical transfer line 30. let it come out

At the lower side of the vertical transfer line 30 described above, an upward moving means 60 is installed to be movable up and down. The upward moving means 60 serves to move the free-falling nut 100 upward according to the movement of the nut seating part 40 .

The upward moving means 60 is vertically movably installed on the lower side of the vertical transfer line 30 and supports the lower end of the nut 100 that has fallen freely according to the movement of the nut seating portion 40. The nut support 61 ), a bracket 62 connected to both lower ends of the nut support 61, and a vertical transmission cylinder 63 for vertically moving the bracket 62.

In addition, a guide protrusion 64 is provided on one side of the bracket 62 so that the vertical movement of the bracket 62 and the nut support 61 by the vertical transfer cylinder 63 is guided, and on the side of the vertical transfer line 30 It is preferable that a guide rail 65 for guiding the vertical movement of the guide protrusion 64 is arranged.

It is preferable that the nut 100 moved upward by the above-described lifting means 60 is gripped for tap processing. To this end, a nut pressing gripper 70 is provided on the upper side of the vertical transfer line 30 . As the nut pressing gripper 70 is installed to be elastically biased inward by the pressing gripping spring 71, it serves to pressurize and hold the nut 100 so that the nut 100 does not fall when the upward moving means 60 moves downward. In addition, the nut pressing gripping tool 70 serves to additionally grip the nut 100 that has not been bitten by the tap tool so that it does not fall.

In particular, it is preferable that a taper portion 72 is formed at the lower end of the nut pressing gripper 70 so that the nut 100 is smoothly pressed and gripped.

On the other hand, when the aforementioned horizontal transfer cylinder 20 pushes and moves the nut 100, the nut 100 in which the hole part 101 is vertically aligned by the hole part alignment tool 12 is supported so as not to rotate any further. it is desirable to be

To this end, it is preferable that a side pressing plate 80 for pressing the side of the nut 100 is installed on the other side of the horizontal transfer line 10 so that the nut 100 does not rotate. It is preferable that the side pressure plate 80 is elastically deflected inwardly by the pressure alignment spring 81 .

Referring to the accompanying drawings, the entire operation of the automatic nut feeder 1 for vertical tapping of a nut according to an embodiment of the present invention will be described as follows:

The nuts 100, which are automatically supplied one by one into the horizontal transfer line 10 through the inlet 11, are rotated while being pushed forward by the horizontal transfer cylinder 20, and climb up on the rear end of the hole alignment tool 12. While the wave part 101 is hung, the wave part 101 is arranged to be positioned in the vertical direction.

In this state, as one side of the nut 100 is pressurized and supported by the side pressure plate 80, the hole part 101 is put into the vertical transfer line 30 as it is positioned in the vertical direction.

The lower end of the nut 100 introduced into the vertical transfer line 30 is supported by the nut seating portion 40, and the nut seating portion 40 is moved downward at an angle by the seating portion moving cylinder 50 so that the vertical transfer line 30 ), the nut 100 falls freely, is supported by the upward movement means 60, and moves upward along the vertical transfer line 30, and then is bitten by a tap tool (not shown) and is tipped. . At this time, the nut 100 is pressurized and gripped by the nut press gripper 70 .

As described above, in the automatic nut feeding device 1 for vertical tapping of a nut according to an embodiment of the present invention, the hole 101 is not horizontally but vertically with respect to the chamfered nut 100. As the tap processing progresses, the cutting material does not accumulate on the tap tool and falls downward, so that the tap tool is not damaged and the nut is not tapped.

Although the embodiments have been illustratively described above, the fact that the present invention can be embodied in various other forms without departing from its spirit and scope is apparent to those skilled in the art. Accordingly, the above-described embodiments are to be regarded as illustrative rather than restrictive, and all implementations within the scope of the appended claims and their equivalents will be included within the scope of the present invention.

1: Automatic nut feeder for vertical tapping of nuts
10: horizontal transfer line
11: inlet
12: hole alignment tool
20: horizontal transfer cylinder
30: vertical transfer line
40: nut seating part
50: seating part moving cylinder
60: upward moving means
61: nut support
62: bracket
63: Shanghai Song Cylinder
64: guide protrusion
65: guide rail
70: nut presser
71: pressurized gripping spring
72: taper part
80: side pressure plate
81: pressurized alignment spring
100: nut
101: break section

Claims (7)

On one side, an inlet 11 into which a nut 100 having a chamfered hole 101 is inserted is formed, and a hole aligning hole 12 for aligning the hole part 101 in the vertical direction by holding the hole part 101 on the bottom surface A horizontal transfer line 10 protruding;
a horizontal transfer cylinder 20 installed at the rear of the horizontal transfer line 10 and pushing the nut 100 forward;
a vertical transfer line 30 installed in communication with the front end of the horizontal transfer line 10;
A nut seating portion 40 provided to be retractable into and out of the vertical transfer line 30 and in which the nut 100 transferred from the horizontal transfer line 10 is initially seated and supported;
A seating portion moving cylinder 50 installed in front of the vertical transfer line 30 and withdrawing and withdrawing the nut seating portion 40 with respect to the vertical transfer line 30;
Lifting moving means 60 installed at the lower side of the vertical transfer line 30 to move up and down and moving the freely fallen nut 100 upward according to the movement of the nut seating part 40; and
A nut is installed on the upper side of the vertical transfer line 30 to be elastically biased inward by a pressure holding spring 71, and presses a nut that presses and holds the nut 100 so that the nut 100 does not fall when the upward moving means 60 moves downward. Nut automatic feeding device for vertical direction tap processing of the nut, characterized in that the gripper 70 is included.
The method of claim 1,
A side pressure plate 80 installed on the other side of the horizontal transfer line 10 to be elastically biased inward by a pressure alignment spring 81 and pressurizing the side surface of the nut 100 so that the nut 100 does not rotate Nut automatic feeder for vertical direction tap processing of the nut, characterized in that it further comprises.
The method of claim 2,
Nut automatic feeding device for vertical direction tap processing of the nut, characterized in that the rear end of the hole part alignment sphere 12 is formed inclined upward toward the front.
The method of claim 3,
The seating portion moving cylinder 50 is arranged in an upward direction in front of the vertical transfer line 30 so as to move the nut seating portion 40 upward and place it within the vertical transfer line 30 or the nut seating portion Automatic nut feeding device for vertical tap processing of a nut, characterized in that by moving the (40) obliquely downward to get out of the vertical transfer line (30).
The method of claim 4,
The upward moving means 60 is
A nut support 61 installed at the lower side of the vertical transfer line 30 so as to be movable up and down and supporting the lower end of the nut 100 that has fallen freely according to the movement of the nut seating part 40;
a bracket 62 connected to the lower end of the nut support 61; and
An automatic nut feeding device for vertical tap processing of a nut, characterized in that a vertical feed cylinder 63 for vertically moving the bracket 62 is included.
The method of claim 5,
The upward moving means 60 is
a guide protrusion 64 provided on one side of the bracket 62; and
A nut automatic feeding device for vertical tap processing of a nut, characterized in that it further includes a guide rail 65 arranged on the side of the vertical transfer line 30 and guiding the vertical movement of the guide protrusion 64.
The method of claim 6,
The nut pressure gripping device 70 is an automatic nut feeding device for vertical direction tap processing of a nut, characterized in that a taper portion 72 is formed at the bottom so that the nut 100 is smoothly pressed and held.

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