KR101585587B1 - Presses for variable shifting desktop tabs work - Google Patents

Presses for variable shifting desktop tabs work Download PDF

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Publication number
KR101585587B1
KR101585587B1 KR1020150064597A KR20150064597A KR101585587B1 KR 101585587 B1 KR101585587 B1 KR 101585587B1 KR 1020150064597 A KR1020150064597 A KR 1020150064597A KR 20150064597 A KR20150064597 A KR 20150064597A KR 101585587 B1 KR101585587 B1 KR 101585587B1
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KR
South Korea
Prior art keywords
variable
spindle
pulley
shaft
handle
Prior art date
Application number
KR1020150064597A
Other languages
Korean (ko)
Inventor
이성구
Original Assignee
(주)하나마이크로텍
이성구
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication date
Application filed by (주)하나마이크로텍, 이성구 filed Critical (주)하나마이크로텍
Priority to KR1020150064597A priority Critical patent/KR101585587B1/en
Application granted granted Critical
Publication of KR101585587B1 publication Critical patent/KR101585587B1/en

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B39/00—General-purpose boring or drilling machines or devices; Sets of boring and/or drilling machines
    • B23B39/04—Co-ordinate boring or drilling machines; Machines for making holes without previous marking
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
    • B23Q17/00—Arrangements for observing, indicating or measuring on machine tools
    • B23Q17/10—Arrangements for observing, indicating or measuring on machine tools for indicating or measuring cutting speed or number of revolutions
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
    • B23Q5/00—Driving or feeding mechanisms; Control arrangements therefor
    • B23Q5/02—Driving main working members
    • B23Q5/04—Driving main working members rotary shafts, e.g. working-spindles
    • B23Q5/12—Mechanical drives with means for varying the speed ratio
    • B23Q5/16—Mechanical drives with means for varying the speed ratio infinitely-variable
    • B23Q5/162—Mechanical drives with means for varying the speed ratio infinitely-variable mechanically-operated
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B2270/00—Details of turning, boring or drilling machines, processes or tools not otherwise provided for
    • B23B2270/02—Use of a particular power source
    • B23B2270/022—Electricity

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Press Drives And Press Lines (AREA)

Abstract

More particularly, the present invention relates to a press for controlling the rotation of a spindle through rotation of a handle in a continuously-variable shifting portion, and, in accordance with control of the continuously-variable shifting portion, The present invention relates to a press for a continuously variable shifting tabletop operation in which a position of a variable pulley is varied so that the number of revolutions of the spindle is controlled so that the number of revolutions of the spindle is visually confirmed, will be.
The present invention relates to a motor vehicle having a table connected to a frame installed on an upper side of a base, a motor assembly on an upper body installed on the upper side of the frame, a motor pulley connected to the motor assembly, And an intermediate variable pulley which is coupled to the variable shaft at a predetermined distance from the intermediate variable pulley. The upper variable pulley and the lower fixed pulley are provided on the upper spindle shaft of the spindle installed on the inner diameter of the quill, A variable power transmission unit comprising a variable belt connecting a variable pulley made of a variable pulley;
A continuously variable transmission disposed on the upper body for controlling the number of revolutions of the spindle as the handle rotates; A spindle sprocket connected to a sprocket and a chain at an upper side of a gear shaft connected to the bevel gear rotated by the handle, and a movable plate coupled to the movable plate, wherein the fixed holder is coupled to the upper side of the upper variable- A speed display control unit for varying a rotational speed of the vehicle; And an indicator which is connected to the handle shaft to which the handle is connected and displays the rotation number of the spindle on the transparent window as the position of the variable belt is varied in the variable pulley,
The indicator is provided to connect the elastic wheel provided on the elastic shaft to the rotation number indicator line connecting the handle shaft and to display the rotation number of the spindle on the rotation number indicator line to provide the current spindle revolution number in the sight window .

Description

[0001] Presses for variable speed shifting desktop tabs work [0002]

More particularly, the present invention relates to a press for controlling the rotation of a spindle through rotation of a handle in a continuously-variable shifting portion, and, in accordance with control of the continuously-variable shifting portion, The present invention relates to a press for a continuously variable shifting tabletop operation in which a position of a variable pulley is varied so that the number of revolutions of the spindle is controlled so that the number of revolutions of the spindle is visually confirmed, will be.

Generally, a drill press is a mechanism for drilling a hole in a workpiece by rotating a main spindle with a cutting tool such as a drill and moving it up and down.

The drill press is used in various machining fields, and is mainly used for drilling a hole, tapping a female thread, reaming a drilled hole with precision, drilling a hole, spot facing, counter Counter sinking, counter boring, and the like.

There are various types of such drill presses, such as a hand drilling machine, an upright drilling machine, a radial drilling machine, a tabletop drilling machine, a flat drilling machine, and a multi-axis drilling machine.

Particularly, the tablet drilling machine has been widely used because of its small size and easy to use.

Such a table thrilling machine is typically used for a drilling operation with a diameter of 12 mm or less, and the spindle rotates at a high speed.

Therefore, various methods for controlling the high-speed rotation speed have been applied, and they can be roughly classified into a control system by a multi-stage pulley, a control system by a belt, and an inverter control system.

The control method using multi-stage pulleys usually controls the rotation speed by pulleys of about 4 stages.

However, this control method must convert the rotational speed of the spindle several times in the case of drilling. For example, in the case of drilling a drill hole having a diameter of 12 mm, first a hole having a diameter of 3 mm is drilled, a hole having a diameter of 6 mm is drilled secondly, and finally, a hole having a diameter of 12 mm is drilled.

As a result, it is troublesome to change the spindle rotational speed over several times during drilling.

Further, when the belt-type control system is used, there is a problem that the rotation speed of the spindle can not be easily confirmed because an indicator for indicating the rotation speed is not provided.

When the inverter control system is applied, this is irrational because it is a constant torque system regardless of the rotation speed of the belt system.

In addition, since the depth of the hole is mechanically measured by the indicator color during the drilling operation, the accuracy is lowered and troublesome.

Meanwhile, the conventional patent registration No. 054819 (registered on May 23, 2006) has a motor assembly, a motor pulley rotatably connected to the motor assembly, an intermediate shaft disposed at a certain distance from the motor pulley, A middle pulley disposed on the intermediate shaft and a spindle pulley connected to the intermediate pulley and disposed on the main shaft at a predetermined distance from the intermediate shaft, A power transmitting portion for transmitting the spindle to a spindle equipped with the spindle; A continuously variable transmission portion disposed between the power transmitting portion and the main shaft and capable of varying the number of rotations transmitted to the main shaft;

A rotation number display unit for displaying a rotation number of the spindle by interlocking with the continuously-variable transmission unit;

A working depth display unit connected to the spindle and capable of electronically measuring a depth of a hole to be drilled by generating a pulsed wave in accordance with upward and downward movement of the spindle;

And a control unit connected to the power transmission unit, the continuously-variable transmission unit, the rotation speed display unit, and the operation depth display unit to control them. However, since the components of the continuously-variable transmission unit are very complicated and difficult to manufacture, The accuracy is deteriorated and the accuracy and control due to the adjustment of the arm are difficult and the price is too high.

Document 1. Patent Registration No. 054819 (registered on May 23, 2006) Document 2. Patent Publication No. 10-1991-004547 (issued on June 7, 1991) Literature 3. Utility Model Registration No. 0424350 (Registered on Aug. 11, 2006) Literature 4. Utility Model Registration No. 0287033 (registered on Aug. 13, 2002)

SUMMARY OF THE INVENTION Accordingly, the present invention has been made keeping in mind the above problems occurring in the prior art, and an object of the present invention is to make it possible to control the number of revolutions of the spindle simply and rapidly through the rotation of the handle at the continuously-

Another object of the present invention is to control the speed of the spindle by controlling the speed display control unit so that the speed of the spindle can be selected according to the control of the stepless speed change unit.

Another object of the present invention is to provide a variable pulley which is formed on the lower side of the intermediate pulley and a variable pulley formed on the upper side of the spindle by a variable belt when the power of the motor is transmitted to the intermediate pulley through the power transmitting portion, And it is an object of the present invention to provide a tabletop press capable of varying the rotation speed of a motor by a variable pulley under the control of a speed display control unit, thereby facilitating a tap operation.

Another object of the present invention is to provide a tabletop tap press capable of visually confirming the rotational speed of a spindle by means of a band-shaped rotational speed indicator line whose speed is indicated by the indicator in accordance with the change of the rotational speed.

The motor assembly includes a motor connected to the upper portion of the frame, a motor pulley connected to the motor assembly, and a motor connected to the motor pulley. A spindle mounted on an inner diameter of a quill coupled to the pinion, the upper spindle shaft having an upper spindle shaft and a lower spindle shaft disposed on an upper spindle shaft of the spindle, the spindle being disposed at a predetermined distance from the intermediate variable pulley, A variable power transmission unit comprising a variable belt connecting a variable pulley made of a pulley;
A continuously variable transmission disposed on the upper body for controlling the number of revolutions of the spindle as the handle rotates; A spindle sprocket connected to a sprocket and a chain at an upper side of a gear shaft connected to the bevel gear rotated by the handle, and a movable plate coupled to the movable plate, wherein the fixed holder is coupled to the upper side of the upper variable- A speed display control unit for varying a rotational speed of the vehicle; And an indicator which is connected to the handle shaft to which the handle is connected and displays the rotation number of the spindle on the transparent window as the position of the variable belt is varied in the variable pulley,
The indicator is provided to connect the elastic wheel provided on the elastic shaft to the rotation number indicator line connecting the handle shaft and to display the rotation number of the spindle on the rotation number indicator line to provide the current spindle revolution number in the sight window .

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The present invention provides an effect that the number of revolutions of the spindle can be visually confirmed through the rotation of the handle in the continuously-variable shifting portion, and can be easily and quickly controlled to conveniently perform the tapping operation.

The present invention provides an effect that the speed display control unit can control the rotation speed of the spindle to be selected according to the control of the continuously-variable transmission unit, so that the number of rotations of the spindle can be easily controlled and the tap operation can be conveniently performed.

When the power of the motor is transmitted to the intermediate pulley through the power transmitting portion, the intermediate variable pulley formed on the lower side of the intermediate pulley and the variable pulley formed on the upper side of the spindle are connected by a variable belt, The present invention provides a tabletop tap press capable of varying the rotational speed of the motor while adjusting the flaring width of the variable pulley to facilitate the tapping operation.

The present invention has a very useful effect of enabling the visibility of the rotation speed of the spindle and performing the tap operation by moving the band-shaped rotation number bar indicated by the speed indicator in the indicator according to the rotation speed change through the rotation of the handle It is.

1 is a front sectional view showing a preferred embodiment of the present invention
2 is a cross-sectional view of an installation state for a main part of the present invention
Figure 3 is a cross-sectional view showing the variable state of the variable pulley for the main part of the present invention
Figure 4 is a partial cross-sectional view of an installation state plane for a major portion of the present invention;
Figure 5 is an enlarged cross-sectional view of a main part of the present invention
FIG. 6 is an enlarged cross-sectional view of a variable post-installation state for a main part of the present invention
7 is a plan view of a main part of the speed display control part of the present invention
8 is a sectional view of the continuously-variable transmission portion and the indicator of the present invention
9 is a front view of the indicator and the control unit of the present invention;
10 is a plan view showing a variable state of the variable pulley according to the present invention

Hereinafter, a tabletop drill press according to a preferred embodiment of the present invention will be described in detail with reference to the accompanying drawings.

FIG. 1 is a front sectional view showing a preferred embodiment of the present invention. The tab tap for a desk comprises a base 10 positioned at the bottom, a circular frame 11 protruding upward from the base 10, An upper body 13 mounted on the upper side of the frame 11 and a table 12 mounted on the frame 11 and capable of mounting workpieces.

Therefore, the worker can place the workpiece on the table 12 and perform the tap forming operation using the tab while the spindle 35 of the upper body 13 is moved up and down according to the rotation of the transfer handle bundle 38 .

A variable power transmission portion 20 having a variable speed according to the rotation of the stepless speed change portion 75 and a power transmission portion 20 connected to one side of the upper body 13 And to transmit the power of the motor to the intermediate variable pulley 26.

A variable power transmission unit 30 connected to the variable pulley 31 installed at a predetermined interval from the variable pulley 26 to vary the rotational speed is provided, And a spindle 35 reciprocating upward and downward is provided.

3 is a cross-sectional view showing a variable state of a variable pulley according to a main part of the present invention, and Fig. 4 is a cross-sectional view of a main portion of the present invention. Fig. Fig. 5 is an enlarged cross-sectional view of a main portion of the present invention, Fig. 6 is an enlarged cross-sectional view of a mounting portion after a variable portion of the main portion of the present invention, Fig. 7 is a cross- FIG. 8 is a cross-sectional view of the continuously variable transmission portion and the indicator according to the present invention, FIG. 9 is a front view of the indicator and the control portion of the present invention, and FIG. 10 is a plan view showing a variable state of the variable pulley according to the present invention will be.

The bevel gear 44 is provided at the tip of the handle shaft 71 provided on the handle 70 connected to the handle 72 so as to vary the position of the variable pulley 30 to rotate the spindle 35 ) Is controlled so as to be able to control the number of revolutions.

The power transmission unit 20 includes a motor assembly 21 mounted on one side of the upper body 13 and a motor pulley 22 mounted on the upper side of the motor assembly 21 to be installed on the variable shaft 25. [ And is connected to an intermediate pulley 24 by a power belt 23 so as to transmit the power of the motor.

The variable power transmission unit 30 is provided with a variable shaft 25 between the motor pulley 22 and the variable pulley 31 on the upper side of the upper body 13, An intermediate variable pulley 26 is coupled to the lower side of the pulley 24 and the intermediate variable pulley 26 is provided so that the elastic force of the lower side elastic member 28 always acts on the upper side.

The variable belt 27 connected to the intermediate variable pulley 26 is connected to a spindle shaft 34 connected to the upper side of the spindle 35 by a variable pulley 32 having a pair of upper and lower variable pulleys 33, (31).

The quill 36 is connected to the outer diameter of the spindle 35 so that the quill 36 is rotated with respect to the rotation of the transfer handle bundle A pinion 37 for guiding the upward and downward reciprocating movement of the spindle 35 is provided.

The speed display control unit 40 is provided with a sprocket 42 for rotatably connecting the gear shaft 41 provided on the upper side of the bevel gear 44 with the support of the bearing and the sprocket 42 and the chain 42a So as to be connected to the spindle sprocket 43.

The spindle sprocket 43 has a movable plate 48 connected to the screw shaft 45 for controlling the holder 49 for determining the moving position of the upper variable pulley 32 on the spindle shaft 34.

A fixed support plate 46 for supporting the bearings for rotating the spindle sprocket 43 and the sprocket 42 is installed at an outer diameter of the gear shaft 41 and the screw shaft 45, A movable plate 48 is connected to the holder 49 provided on the movable plate 48 and one end of the movable plate 48 is connected to cover the gear shaft 41 so as to linearly move upward and downward.

The upper variable pulley 32 and the lower variable pulley 33 are axially coupled to each other at an inner diameter so as to reciprocate in the axial direction in accordance with the pressure of the holder 49.

An indicator 50 is connected to a portion of the handle shaft 71 of the stepless change-speed portion 75 to indicate the number of revolutions of the spindle 35 as the handle shaft 71 rotates .

The indicator 50 is provided with a circular elastic wheel 52 on the elastic shaft 51 so that an elastic force is always applied and a spindle 35 is formed on one side of the elastic wheel 52 with a see- The first and second rollers 55 and 56 are provided so that the rotational speed of the second roller 56 and the guide rod 48 can be visually recognized, And the third roller 57 is installed on the rotation number display bar 53 so that the rotation number display bar 53 freely reciprocates.

The control unit 60 provided with a part of the indicator 50 is provided with a see-through window 54 on the upper side and an on / off switch 61, a lamp 62 and an emergency switch 63 on the lower side thereof .

The press for the tapping operation of the continuously variable shifting tablet according to the present invention having such a configuration is characterized in that the height of the table 12 provided on the frame 11 is freely adjusted and fixed to a desired position to place the workpiece, The quill 36 is reciprocated upward and downward along the rotation direction of the pinion 37 as the transfer handle bundle 38 is rotated after connecting the tabs capable of performing the tapping operation, The reciprocating movement of the spindle 35 causes the workpiece to be drilled using a drill or to perform a tapping operation using a tap.

The rotational speed of the spindle 35 is provided through the variable power transmission portion 30 by the power transmission portion 20 and the variable pulley 30,

The power provided by the motor assembly 21 is to transmit the motor pulley 22 and the intermediate pulley 24 to the power belt 23,

The upper variable pulley 31 and the lower variable pulley 32 move up and down through the speed display control unit 40 at a position where the lower variable pulley 32 is fixed to the spindle shaft 34, The variable belt 27 is moved by the varying action of narrowing or widening the gap between the spindle shaft 33 and the spindle shaft 33,

The variable action of adjusting the height of the upper variable pulley 32 of the variable pulley 31 allows a constant tension to be provided through the variable belt 27 at the intermediate variable pulley 26 and the control of the speed display control unit 40 And the position of the intermediate variable pulley 26 is varied by providing the elastic force of the lower elastic member 28 so that the intermediate variable pulley 26 moves up and down through the spool line connection, To correspond to the position change according to the position change.

The speed variable of the variable power transmission portion 30 is controlled through the continuously-variable transmission portion 75,

The gear shaft 41 is rotated through the pair of bevel gears 44 at the tip of the handle shaft 71 when the handle 70 is rotated by holding the handle 72. When the gear shaft 41 is rotated Controls the opening width of the upper variable pulley 32 of the variable pulley 31 through the speed display control unit 40 according to the rotation speed of the spindle 35 to control the rotation speed of the spindle 35 as a result.

More specifically, the chain 42a connected to the sprocket 42 rotates the spindle sprocket 43 connected to the screw shaft 45 by the rotation of the gear shaft 41, and the rotation of the spindle sprocket 43 The screw shaft 45 is rotated and moved upward or downward through the threaded connection with the movable plate 48. The holder 49 is moved up or down with the movable plate 48 being lifted or lowered, And adjusts the gap between the lower variable pulley 33 and the lower variable pulley 33 by changing the positions of the upper and lower variable pulleys 32 and 32.

The rotation of the screw shaft 45 and the gear shaft 41 is rotatably supported by the bearing through the fixed support plate 46 and the movable plate 48 connected to the upper side of the holder 49 is supported by the holder 49 So as to guide the reciprocating movement in the axial direction without rotating in the state where the gear shaft 41 is wrapped around so as to be lifted or lowered.

As a result, the gear shaft 41 is rotated in accordance with the rotational direction of the handle 70 of the stepless speed change portion 75 to rotate the screw shaft 45 to transfer the movable plate 48 and the holder 49, The rotation speed of the spindle 35 is controlled by changing the position of the variable belt 27 according to the upward and downward movement of the handle 32, so that the rotation speed of the spindle 35 can be easily controlled by the rotation of the handle 70. [

The speed regulation of the variable pulley 31 through the movement of the upper variable pulley 32 is provided to maintain a constant tension while being connected to the intermediate variable pulley 26 to which the variable belt 27 is connected.

An indicator 50 is installed on the handle shaft 71 of the stepless change-speed portion 75 so as to visually confirm the number of revolutions of the spindle 35 as the number of revolutions changes As a result,

The number of revolutions is indicated by a numeral 450 at a constant interval in the revolutions display bar 53. When the handle bar 71 is rotated in one direction The elastic wheel 52 coupled to the elastic shaft 51 rotates and is guided by the first, second and third rollers 55, 56 and 57 to rotate the elastic wheel 52 The display bar 53 is released and when the handle shaft 71 is moved to the left in the figure, the rotation number display bar 53 is guided by the first, second and third rollers 55, 56 and 57, And is wound on the wheel 52.

The rotation speed indicator bar 53 is formed in a band shape having a predetermined width and is wound or unwound by the elastic wheel 52 in accordance with the variable pulley 30 being driven to move the spindle 35 to the viewing window 54. [ (RPM) of the spindle 35 to confirm the accurate rotation speed of the spindle 35 with the naked eye and to easily perform the tapping operation.

Accordingly, the press for the continuously variable shifting tabletop operation of the present invention controls the rotational speed of the spindle 35 through the rotation of the stepless varying speed portion 75, and the rotational speed of the spindle 35 is controlled by the power transmitting portion 20 and the variable power transmitting portion 30, The direct speed variable of the variable pulley 31 via the intermediate variable pulley 26 and the intermediate pulley 24 is controlled by the speed display control section 40 between the pulley 22 and the variable pulley 31, The rotation speed of the spindle 35 through the indicator 50 can be visually checked easily and the tap operation can be performed.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, And it goes without saying that they belong to the scope of the present invention.

10: Base 11: Frame
12: Table 13: Upper body
20: power transmission portion 21: motor assembly
22: motor pulley 23: power belt
24: intermediate pulley 25: variable axis
26: intermediate variable pulley 28: elastomer
30: variable power control unit 31: variable pulley
32: upper variable pulley 33: lower variable pulley
34: spindle shaft 35: spindle
36: Quill 37: Pinion
38: Feed handle bundle 40: Speed display control section
41: gear shaft 42, 43: sprocket
42a: chain 44: bevel gear
45: screw shaft 46: fixed support plate
48: movable plate 49: holder
50: Indicator 51: Elastic axis
52: elastic wheel 53: revolution number bar
54: perspective window 55: first laura
56: 2nd Laura 57: 3rd Laura
60: control unit 70: handle
71: handle shaft 72: handle
75: continuously variable transmission portion

Claims (5)

A table 12 connected to a frame 11 provided on the upper side of the base 10 and a motor assembly 21 mounted on an upper body 13 provided on the upper side of the frame 11, And a middle pulley 24 installed at a predetermined distance from the motor pulley 22 and coupled to the variable shaft 25 together with the intermediate variable pulley 26, And an upper variable pulley 32 disposed on the upper spindle shaft 34 of a spindle 35 provided at an inner diameter of a quill 36 provided with a pinion 37 and disposed at a predetermined distance from the intermediate variable pulley 26, And a variable belt (27) connecting a variable pulley (31) constituted by a lower variable pulley (33) and a variable power transmission portion (30)
A continuously variable transmission portion 75 installed on the upper body 13 for controlling the number of revolutions of the spindle 35 as the handle 70 is rotated; A screw shaft 45 provided with a spindle sprocket 43 connected to a sprocket 42 and a chain 42a at an upper side of a gear shaft 41 connected to the bevel gear 44 rotated by the handle 70, And a holder 49 to which the movable plate 48 is fixed is coupled to the upper side of the upper variable pulley 32 to couple the speed of the variable pulley 31 to the speed display controller 40 )Wow; An indicator 50 for indicating the rotational speed of the spindle 35 on the see window 54 as the position of the variable belt 27 is varied in the variable pulley 31 by being connected to the handle shaft 71 to which the handle 70 is connected, A press for a continuously variable shifting tabletop operation, comprising:
The indicator 50 connects a rotation number indicator bar 53 connecting the elastic wheel 52 and the handle shaft 71 provided on the elastic shaft 51 and rotates the spindle 35) is provided so as to provide the current number of rotations of the spindle (35) in the sight window (54).
delete delete A table 12 connected to a frame 11 provided on the upper side of the base 10 and a motor assembly 21 mounted on an upper body 13 provided on the upper side of the frame 11, And a middle pulley 24 installed at a predetermined distance from the motor pulley 22 and coupled to the variable shaft 25 together with the intermediate variable pulley 26, And an upper variable pulley 32 disposed on the upper spindle shaft 34 of a spindle 35 provided at an inner diameter of a quill 36 provided with a pinion 37 and disposed at a predetermined distance from the intermediate variable pulley 26, And a variable belt (27) connecting a variable pulley (31) constituted by a lower variable pulley (33) and a variable power transmission portion (30)
A continuously variable transmission portion 75 installed on the upper body 13 for controlling the number of revolutions of the spindle 35 as the handle 70 is rotated; A screw shaft 45 provided with a spindle sprocket 43 connected to a sprocket 42 and a chain 42a at an upper side of a gear shaft 41 connected to the bevel gear 44 rotated by the handle 70, And a holder 49 to which the movable plate 48 is fixed is coupled to the upper side of the upper variable pulley 32 to couple the speed of the variable pulley 31 to the speed display controller 40 )Wow; An indicator 50 for indicating the rotational speed of the spindle 35 on the see window 54 as the position of the variable belt 27 is varied in the variable pulley 31 by being connected to the handle shaft 71 to which the handle 70 is connected, A press for a continuously variable shifting tabletop operation, comprising:
The indicator 50 is formed in a band shape so as to connect the elastic wheel 52 and the handle shaft 71 so that the number of revolutions of the spindle 35 is displayed and the first, , 56, 57. The press for a tapping operation of a continuously variable shifting tabletop.
A table 12 connected to a frame 11 provided on the upper side of the base 10 and a motor assembly 21 mounted on an upper body 13 provided on the upper side of the frame 11, And a middle pulley 24 installed at a predetermined distance from the motor pulley 22 and coupled to the variable shaft 25 together with the intermediate variable pulley 26, And an upper variable pulley 32 disposed on the upper spindle shaft 34 of a spindle 35 provided at an inner diameter of a quill 36 provided with a pinion 37 and disposed at a predetermined distance from the intermediate variable pulley 26, And a variable belt (27) connecting a variable pulley (31) constituted by a lower variable pulley (33) and a variable power transmission portion (30)
A continuously variable transmission portion 75 installed on the upper body 13 for controlling the number of revolutions of the spindle 35 as the handle 70 is rotated; A screw shaft 45 provided with a spindle sprocket 43 connected to a sprocket 42 and a chain 42a at an upper side of a gear shaft 41 connected to the bevel gear 44 rotated by the handle 70, And a holder 49 to which the movable plate 48 is fixed is coupled to the upper side of the upper variable pulley 32 to couple the speed of the variable pulley 31 to the speed display controller 40 )Wow; An indicator 50 for indicating the rotational speed of the spindle 35 on the see window 54 as the position of the variable belt 27 is varied in the variable pulley 31 by being connected to the handle shaft 71 to which the handle 70 is connected, A press for a continuously variable shifting tabletop operation, comprising:
The speed display control unit 40 is provided with a spindle sprocket 43 connected to the upper sprocket 42 of the gear shaft 41 connected to the bevel gear 44 by a chain 42a, A movable plate (48) connected to the screw shaft (45) and surrounding an outer diameter of the gear shaft (41);
A holder 49 which is fixed on the movable plate 48 to be positioned on the upper side of the upper variable pulley 32 and controls the gap with the lower light pulley 33 to vary the rotation speed of the spindle 35;
And a stationary support plate (46) for connecting the screw shaft (45) and the gear shaft (41) so as to support a bearing rotatably installed.
KR1020150064597A 2015-05-08 2015-05-08 Presses for variable shifting desktop tabs work KR101585587B1 (en)

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Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR200396422Y1 (en) * 2005-07-08 2005-09-21 채석현 derailleur of drill machine

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR200396422Y1 (en) * 2005-07-08 2005-09-21 채석현 derailleur of drill machine

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