KR101719416B1 - TRANSFER DEVICE ABLE TO CURVEDlY DRIVE - Google Patents

TRANSFER DEVICE ABLE TO CURVEDlY DRIVE Download PDF

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Publication number
KR101719416B1
KR101719416B1 KR1020150078417A KR20150078417A KR101719416B1 KR 101719416 B1 KR101719416 B1 KR 101719416B1 KR 1020150078417 A KR1020150078417 A KR 1020150078417A KR 20150078417 A KR20150078417 A KR 20150078417A KR 101719416 B1 KR101719416 B1 KR 101719416B1
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KR
South Korea
Prior art keywords
ball
guide
screw shaft
slider
running portion
Prior art date
Application number
KR1020150078417A
Other languages
Korean (ko)
Other versions
KR20160142914A (en
Inventor
김태진
Original Assignee
김태진
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Publication date
Application filed by 김태진 filed Critical 김태진
Priority to KR1020150078417A priority Critical patent/KR101719416B1/en
Publication of KR20160142914A publication Critical patent/KR20160142914A/en
Application granted granted Critical
Publication of KR101719416B1 publication Critical patent/KR101719416B1/en

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G33/00—Screw or rotary spiral conveyors
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G33/00—Screw or rotary spiral conveyors
    • B65G33/24—Details
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G33/00—Screw or rotary spiral conveyors
    • B65G33/24—Details
    • B65G33/32—Adaptations of bearings or couplings for supporting and connecting screws
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G33/00—Screw or rotary spiral conveyors
    • B65G33/24—Details
    • B65G33/34—Applications of driving gear

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Transmission Devices (AREA)

Abstract

[0001] The present invention relates to a conveying device capable of curved traveling, which is capable of curved conveyance, comprising a ball-screw shaft having a straight running portion and a straight running portion and a curved running portion, a slider running along the ball- A guide portion provided on both sides of the straight running portion and the curved running portion of the screw shaft for guiding the slider to run in the axial direction of the ball screw, wherein the ball screw shaft is fixed and the rotor of the slider is rotated and transported.

Description

TRANSFER DEVICE ABLE TO CURVEDLY DRIVE [0002]

BACKGROUND OF THE INVENTION 1. Field of the Invention [0002] The present invention relates to a conveying apparatus capable of curved traveling, and more particularly to a conveying apparatus capable of running on a curve for facilitating curved traveling.

A conventional conveying device is a ball-screw conveying device in a typical form, but it is a linear moving device. The screw shaft is rotated by the driving of a motor connected to the end of the screw shaft, and the reciprocating motion of the slider .

However, when such a device is formed, it is only possible to move to a straight line and it is difficult to move to a curve.

In order to create an arbitrary movement path axis, there is a method of moving a cable capable of being pulled left or right along a path or connecting it to an object. However, depending on the elasticity of the cable in both directions or the supporting method, Unintentional tension may result, which may lead to cable adjustment during operation and installation.

A related prior art is Korean Patent No. 0933753 (registered on Dec. 16, 2009, entitled Curved Linear Device Using Flexible Spiral Shaft).

SUMMARY OF THE INVENTION The present invention is intended to provide a conveying apparatus capable of traveling a curved line to feed a slider without rotating the ball-screw shaft.

In addition, the present invention is intended to provide a conveying apparatus capable of curved traveling in which the slider easily travels straight lines and curved lines.

The technical objects to be achieved by the present invention are not limited to the above-mentioned technical problems.

According to another aspect of the present invention, there is provided a conveying apparatus capable of running on a curve, comprising: a ball-screw shaft having a straight running portion and a straight running portion followed by a curved running portion; A slider running along the ball-screw shaft; And a guide portion provided on both sides along the straight running portion and the curved running portion of the ball-screw shaft to guide the slider to run in the axial direction of the ball-screw, wherein the ball-screw shaft is fixed, And is transported.

Specifically, the slider includes a motor having a hollow inside and a rotor inside; And a sliding bearing having a ring shape and having an outer circumferential surface mounted on the rotor and an inner circumferential surface on which a plurality of bearing ball plungers are mounted so as to slide on the threads of the linear running portion and the curved running portion.

In addition, the ball of the bearing ball plunger is installed to protrude outward from the inner circumferential surface of the sliding bearing, and is positioned on the threaded bore of the straight running portion and the curved running portion.

In addition, a guide ball plunger guided along the guide portion is provided on both sides of the slider adjacent to the guide portion.

In addition, the guide portion facing the guide ball plunger is formed with a guide groove into which the ball of the guide ball plunger is slidably fitted.

In addition, the guide portion is provided on both sides along the straight running portion and the curved running portion of the ball-screw shaft.

INDUSTRIAL APPLICABILITY As described above, the present invention has an effect that the slider can be fed without rotation of the ball-screw shaft, thereby enabling long-distance feeding.

Also, the present invention has the effect that the ball of the bearing ball plunger moves in and out along the contact surface of the ball-screw shaft even in a curved line by the bearing ball plunger coupled to the sliding bearing so that the contact surface of the ball-

1 is a perspective view showing a conveying apparatus capable of running on a curve according to an embodiment of the present invention.
2 is a cross-sectional view illustrating a conveying apparatus capable of traveling in a curve according to an embodiment of the present invention.
3 is a view showing a part of a ball-screw shaft.
4 is an exploded perspective view showing a slider of a conveyance apparatus capable of traveling in a curve according to an embodiment of the present invention.
FIG. 5 is a cross-sectional view illustrating an arrangement of bearing ball plungers in a conveying apparatus capable of traveling in a curve according to an embodiment of the present invention.
FIG. 6 is a view showing a combination of a ball-screw shaft and a bearing plunger of a conveying device capable of traveling in a curve 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. In the drawings, the same components are denoted by the same reference symbols whenever possible. In the following description, well-known functions or constructions are not described in detail since they would obscure the invention in unnecessary detail.

1 and 2 illustrate a conveying apparatus capable of running in a curve according to an embodiment of the present invention. The conveying apparatus 100 includes a ball-screw shaft 110, a slider 120, and a guide unit 130 .

The ball-screw shaft 110 includes a straight running portion 111 and a curved running portion 112, but the curved running portion 112 and the straight running portion 111 are preferably extended from each other. That is, it is obvious that the straight running portion 111 and the curved running portion 112 are integrally formed, and at least one of the straight running portion 111 and the curved running portion 112 can be connected to each other.

3, the ball screw shaft 110 is formed of a thread 10 and a thread 11, and in the embodiment of the present invention, the distance between the thread 10 and the next thread 10 is defined as a pitch interval P, .

In this case, it is preferable that the ball screw shaft 110 is fixed by an external structure so that the front end and the rear end are fixed and not rotated. However, the description of the fixing means for fixing the ball screw shaft 110 in the embodiment of the present invention is omitted .

The slider 120 includes a motor 121, a sliding bearing 123, and a guide ball plunger 125.

Here, the motor 121 is hollow and has a rotor 122 inside. That is, the motor 121 is driven by external power so that the internal rotor 122 can be rotated. At this time, the rotor 122 is rotated clockwise and counterclockwise, and the slider 120 is advanced and retracted according to the rotation direction. Hereinafter, it will be described again.

4, the outer peripheral surface of the sliding bearing 123 is mounted on the rotor 122 and rotates in the same direction by the rotation of the rotor 122. The inner peripheral surface of the sliding bearing 123 is linearly running And a plurality of bearing ball plungers 124 slidably inserted into the threaded bosses 10 of the bent portion 111 and the curved running portion 112.

At this time, the bearing ball plunger 124 may be mounted through the sliding bearing 123 as shown in the figure, or may be embedded in the inside of the bearing ball plunger 124.

The ball 124a of the bearing ball plunger 124 should be positioned in the threaded bore 10 of the straight running portion 111 and the curved running portion 112 while being mounted so as to protrude outside the inner peripheral surface of the sliding bearing 123.

That is, the sliding bearing 123 is fitted in the rotor 122 of the motor in an interference fit manner, and the ball-screw shaft 110 passes through the ring-shaped sliding bearings 123, Screw shaft 110 so that the balls 124a of the bearing ball plunger 124 are positioned on the threaded bosses 10 of the ball-screw shaft 110. The ball-

The arrangement of the bearing ball plungers 124 is preferably not in the form of a ring like the sliding bearings 123 but in a spiral arrangement such that the balls 124a of the bearing ball plungers 124 can be positioned in the threads 10 Do.

By providing the sliding bearing 123 including the bearing ball plunger 124 inside the rotor 122, the bearing ball plunger 124 can be simultaneously rotated by the rotation of the rotor 122 rotated by the driving of the motor 121 The slider 120 can be moved forward and backward on the ball-screw shaft 110 as the rotation of the slider 120 is performed. That is, the bearing ball plunger engages with the ball-screw shaft 110 to move the slider.

6, the ball 124a of the bearing ball plunger 124 moves in and out of the curved running portion 112 of the ball-screw shaft so that the side where the pitch interval P is narrow is the bearing ball plunger The ball 124a of the ball screw plunger 124 protrudes and the ball 124a of the ball screw rod 110 enters the inside of the ball screw plunger 124, It is possible to easily carry the curved traveling portion by traveling while contacting.

That is, the inside of the bearing ball plunger 124 is provided with an elastic member having a force for pushing the ball 124a outward so as to normally push the ball 124a outward. However, when the ball 124a contacts the threaded ball, 124a are pushed into the inside.

The guide ball plunger 125 is positioned on both sides of the slider 120 adjacent to the guide unit 130 and guides the slider 120 along the guide unit 130.

Here, the guide part 130 is provided along the straight running part 111 and the curved running part 112 of the ball-screw shaft 110 so that the slider 120 is formed in the direction of the ball-screw shaft 110 , Or one side or both sides.

When the rotor 122 of the slider 120 fastened to the ball screw shaft 110 is rotated by the motor 121, the slider 120 is also rotated by the rotor 122 So that the slider 120 is prevented from rotating and guided in the same direction as the ball screw shaft 110 so that the slider 120 can move forward or backward.

The guide ball plunger 125 is disposed on the inner side of the guide portion 130 when the guide portion 130 is moved along the guide portion 130 on the same principle as the bearing ball plunger 124 when the guide portion 130 is curved along the ball- The ball moves in and out along the outer contact surface, so that the slider can be smoothly guided.

The guide part 130 is inserted into the guide ball plunger 125 so that the guide ball plunger 125 for guiding the slider 120 can be guided along the guide part 130 without being released to the outside, A guide groove 131 formed in the same direction as the axis is further formed.

 Therefore, the present invention has an effect that the slider can be transferred without rotating the ball-screw shaft, thereby enabling long-distance transfer.

Also, by the bearing ball plunger coupled to the sliding bearing, the ball of the bearing ball plunger moves in and out along the contact surface of the ball-screw shaft even in a curved line, thereby maintaining the contact surface of the ball-screw shaft.

The conveying device capable of traveling in a curved shape as described above is not limited to the configuration and operation of the embodiments described above. The embodiments may be configured so that all or some of the embodiments may be selectively combined so that various modifications may be made.

10: threaded thread 11: threaded
P: Pitch interval 100: Feeding device
110: Ball-screw shaft 111: Straight running part
112: Curved traveling part 120: Slider
121: motor 122: rotor
123: Sliding bearing 124: Bearing ball plunger
124a, 125a: ball 125: guide ball plunger
130: guide portion 131: guide groove

Claims (6)

In the transfer device,
A ball-screw shaft having a straight running portion and a straight running portion followed by a curved running portion;
A slider running along the ball-screw shaft; And
And a guide portion provided along the straight running portion and the curved running portion of the ball-screw shaft to guide the slider to run in the axial direction of the ball-screw,
The ball screw shaft is fixed, the rotor of the slider is rotated and transported,
The slider having a hollow inner rotor with a motor; And
And a sliding bearing having a ring shape and having an outer circumferential surface mounted on the rotor and an inner circumferential surface on which a plurality of bearing ball plungers are mounted so as to slide on the threads of the straight running portion and the curved running portion. Conveying device.
delete The method according to claim 1,
Wherein the balls of the bearing ball plunger are mounted on the threaded bosses of the straight running portion and the curved running portion while being mounted so as to protrude outside the inner circumferential surface of the sliding bearing.
The method according to claim 1,
And a guide ball plunger guided along the guide portion is provided on both sides of the slider adjacent to the guide portion.
The method of claim 4,
Wherein the guide portion facing the guide ball plunger is formed with a guide groove into which the ball of the guide ball plunger is slidably inserted.
The method according to claim 1,
Wherein the guide portion is provided on both sides along the straight running portion and the curved running portion of the ball-screw shaft.
KR1020150078417A 2015-06-03 2015-06-03 TRANSFER DEVICE ABLE TO CURVEDlY DRIVE KR101719416B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020150078417A KR101719416B1 (en) 2015-06-03 2015-06-03 TRANSFER DEVICE ABLE TO CURVEDlY DRIVE

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020150078417A KR101719416B1 (en) 2015-06-03 2015-06-03 TRANSFER DEVICE ABLE TO CURVEDlY DRIVE

Publications (2)

Publication Number Publication Date
KR20160142914A KR20160142914A (en) 2016-12-14
KR101719416B1 true KR101719416B1 (en) 2017-03-24

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Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2863878B2 (en) 1991-06-11 1999-03-03 植原樹脂工業 株式会社 Traveling device for traveling body

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0439451A (en) * 1990-06-05 1992-02-10 Ntn Corp Linear feeder using electric motor-driven actuator

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2863878B2 (en) 1991-06-11 1999-03-03 植原樹脂工業 株式会社 Traveling device for traveling body

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