KR101759278B1 - Manufacturing apparatus - Google Patents

Manufacturing apparatus Download PDF

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Publication number
KR101759278B1
KR101759278B1 KR1020150057329A KR20150057329A KR101759278B1 KR 101759278 B1 KR101759278 B1 KR 101759278B1 KR 1020150057329 A KR1020150057329 A KR 1020150057329A KR 20150057329 A KR20150057329 A KR 20150057329A KR 101759278 B1 KR101759278 B1 KR 101759278B1
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KR
South Korea
Prior art keywords
workpiece
fixing
machining
unit
polishing
Prior art date
Application number
KR1020150057329A
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Korean (ko)
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KR20160126360A (en
Inventor
문창혁
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문창혁
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Priority to KR1020150057329A priority Critical patent/KR101759278B1/en
Publication of KR20160126360A publication Critical patent/KR20160126360A/en
Application granted granted Critical
Publication of KR101759278B1 publication Critical patent/KR101759278B1/en

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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B24GRINDING; POLISHING
    • B24BMACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B5/00Machines or devices designed for grinding surfaces of revolution on work, including those which also grind adjacent plane surfaces; Accessories therefor
    • B24B5/02Machines or devices designed for grinding surfaces of revolution on work, including those which also grind adjacent plane surfaces; Accessories therefor involving centres or chucks for holding work
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B24GRINDING; POLISHING
    • B24BMACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B27/00Other grinding machines or devices
    • B24B27/033Other grinding machines or devices for grinding a surface for cleaning purposes, e.g. for descaling or for grinding off flaws in the surface
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B24GRINDING; POLISHING
    • B24BMACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B5/00Machines or devices designed for grinding surfaces of revolution on work, including those which also grind adjacent plane surfaces; Accessories therefor
    • B24B5/02Machines or devices designed for grinding surfaces of revolution on work, including those which also grind adjacent plane surfaces; Accessories therefor involving centres or chucks for holding work
    • B24B5/16Machines or devices designed for grinding surfaces of revolution on work, including those which also grind adjacent plane surfaces; Accessories therefor involving centres or chucks for holding work for grinding peculiarly surfaces, e.g. bulged

Abstract

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a machining apparatus, which can prevent a workpiece from flowing during a polishing process by processing a workpiece formed in a curved or polygonal shape, such as a shift lever of an automobile, The time and the defective rate can be remarkably lowered.
A machining apparatus according to the present invention is an apparatus for machining a workpiece on which planar portions are formed on both sides and a machining portion formed in a curved or polygonal shape is formed between the planar portions,
A rotation guide portion that is fixed to one side of the workpiece and guides the rotation of the workpiece in place, a fixing portion that is symmetrical with the rotation guide portion with the workpiece interposed therebetween and surrounds and fixes the plane portion of the workpiece, And a polishing portion spaced apart from the polishing portion and polishing the processing portion of the workpiece.

Description

{MANUFACTURING APPARATUS}
The present invention relates to a workpiece processing apparatus such as a shift lever of an automobile.
Generally, a workpiece such as a shift lever of an automobile is formed by a casting method and then machined.
In addition, burrs or the like are generated on the surface of such a work, and the bur reduces the performance of the automobile. Therefore, the worker directly removes the burr with a grinder or a separate grinding device.
However, when a worker directly removes a bur from a grinder, the work speed is very slow and the precision required for the product is high, which is not efficient.
In the case of a shift lever of an automobile, a curved or polygonal machining portion is formed on both sides of a quadrangular body. In the conventional grinding machine, the machined portion is polished while rotating the workpiece in the above- There is a problem that means for keeping the workpiece stably fixed during the process is not provided.
Therefore, in the conventional polishing apparatus, since the ball-shaped polishing unit is polished while rotating along the longitudinal direction and the upward and downward directions of the processing region of the workpiece, the machining completion time for one workpiece takes one minute or more, And the manufacturing cost per unit of the workpiece is increased.
Open Patent Publication No. 10-2012-0004238 (2012.01.12)
SUMMARY OF THE INVENTION The present invention has been made in order to solve the problems of the prior art described above, and it is an object of the present invention to provide a method of manufacturing a workpiece in a state in which a workpiece formed in a curved or polygonal shape, And it is an object of the present invention to provide a machining apparatus capable of significantly reducing machining time and defect rate.
A machining apparatus according to the present invention is an apparatus for machining a workpiece on which planar portions are formed on both sides and a machining portion formed in a curved or polygonal shape is formed between the planar portions,
A rotation guide portion that is fixed to one side of the workpiece and guides the rotation of the workpiece in place, a fixing portion that is symmetrical with the rotation guide portion with the workpiece interposed therebetween and surrounds and fixes the plane portion of the workpiece, And a polishing portion spaced apart from the polishing portion and polishing the processing portion of the workpiece.
Further,
A side fixing part spaced apart from each other by a predetermined distance and in contact with the flat part of the machining part, and a rear fixing part connecting the side fixing part and contacting the rear surface of the processing part,
And a receiving groove for receiving the machined portion is formed between the side fixing portion and the rear fixing portion.
The apparatus further includes a moving part connected to the fixing part and moving the fixed part so that the work piece moves in a direction in which the work piece is moved toward or away from the rotation guide part.
And a rotating portion for rotating the workpiece in place,
The rotation unit includes:
A rotating shaft connected to the moving unit, and a driving unit connected to the rotating shaft and rotating the rotating shaft in place.
The machining apparatus according to the present invention polishes a machining portion in a state in which a machining portion formed in a curved or polygonal shape such as a shift lever of an automobile is stably fixed through a fixed portion, Can be prevented from flowing due to the contact force between the abrasive part and the polishing part and the vibration force caused by the rotation of the abrasive part, thereby making it possible to drastically lower the defective rate of the processed workpiece and improve the productivity.
Further, since the polishing portion can be polished in a state in which the polishing portion is in contact with the entire machining portion of the workpiece, the machining time can be remarkably shortened.
1 is a perspective view showing a machining apparatus according to the present invention;
2 is a perspective view showing a state in which a workpiece is mounted on a machining apparatus according to the present invention;
Fig. 3 is a perspective view of the fixing part, the moving part, and the rotating part applied to the working device according to the present invention; Fig.
4 is a perspective view showing an operating state of a machining apparatus according to the present invention;
5 is a perspective view showing an embodiment of a workpiece in a processing apparatus according to the present invention.
Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings so that those skilled in the art can easily carry out the present invention. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Like parts are designated with like reference numerals throughout the specification.
FIG. 1 is a perspective view showing a machining apparatus according to the present invention, FIG. 2 is a perspective view showing a state where a workpiece is mounted on the machining apparatus according to the present invention, FIG. FIG. 4 is a perspective view showing an operating state of a machining apparatus according to the present invention, and FIG. 5 is a perspective view showing an embodiment of a workpiece in the machining apparatus according to the present invention.
1 to 5, a machining apparatus 1 according to the present invention includes a rotation guide portion 10, a fixing portion 20, and a polishing portion 30. The machining apparatus 1 includes a rotation guide portion 10, a fixing portion 20, The workpiece 90 is processed.
At this time, the work 90 is formed in a bar shape, and planar portions 91 are formed on both sides of the work 90. Between the planar portions 91, machining portions 92 Is formed.
The machining portion 92 may be formed in a curved shape as shown in FIG. 1, or may be formed in a polygonal shape as shown in FIG.
That is, in the machining apparatus 1 according to the present invention, when the machining portion 92 has a curved shape, its surface is smoothly polished, and even when the machined portion 92 has a polygonal shape, it is polished in a curved shape, .
1, a groove 90a for rotation is formed in the central portion of the front side of the work 90. As shown in Fig.
The rotation guide portion 10 is provided on the upper surface of the work table 60 having a constant height and area for guiding the rotation of the work 90 in place.
Specifically, a mounting table 70 formed in a rectangular plate shape is provided on the upper surface of the work table 60, and the rotation guide portion 10 is installed on the mounting table 70.
The rotation guide portion 10 is formed in a circular shape, and one side thereof is formed into a pointed shape.
The pointed portion is axially fixed to the groove (90a) facing the front side of the work (90).
Accordingly, the workpiece 90 can be rotated by the guide of the rotation guide portion 10.
In addition, a control unit 64 for automatically controlling the polishing unit 30, the moving unit 40, the driving unit 52, and the like is installed on the work table 60.
The fixing portion 20 fixes the work 90 and is symmetrical with the rotation guide portion 10 with the work 90 interposed therebetween.
At this time, the fixture 20 fixes the fixture in a state of being parallel to the workpiece 90.
The fixing portion 20 is divided into a side fixing portion 21 and a back fixing portion 22.
The pair of side fixing parts 21 are spaced apart from each other by a pair and contact the flat part 91 of the processing part.
At this time, the side fixing portion 21 is formed in a rectangular plate shape so as to stably cover the flat portion 91 of the work 90.
The rear fixing part 22 connects the end of the side fixing part 21 and surrounds the rear surface connected to the flat part 91 of the work 90. [
At this time, the rear fixing part 22 is formed in a rectangular plate shape so as to stably cover the rear surface of the work 90.
Since the side fixing part 21 and the back side fixing part 22 are combined as described above, the fixing part 20 is formed in a 'C' shape and the side fixing part 21 and the rear fixing part 22 A receiving groove 20a for receiving a part of the work 90 is formed.
The movable part 40 is connected to the fixing part 20 to move the workpiece 90 in a direction approaching or away from the rotation guide part 10.
The moving part 40 may be formed by a known hydraulic cylinder or a pneumatic cylinder, and a piston provided at one end is fixed to a central part of the rear fixing part 22. [
At this time, the moving unit 40 is connected to the fixing unit 20 in a horizontal state.
As a result, when the hydraulic or pneumatic pressure is injected into the moving part 40, the workpiece 90 fixed to the fixing part 20 and the fixing part 20 is guided to the rotation guide part 10 as the piston is drawn out. So that the pointed portion of the rotation guide portion 10 is axially fixed to the groove 90a of the workpiece 90. [
When the hydraulic or pneumatic pressure is discharged from the moving unit 40, the workpiece 90 fixed to the stationary unit 20 and the fixed unit 20 is guided by the rotation guide unit 10, So that the pointed portion of the rotation guide portion 10 is drawn out from the groove 90a of the workpiece 90. As a result,
A supporting portion 80 through which the moving portion 40 passes and which supports a part of the moving portion 40 is provided on the upper surface of the work table 60. The moving portion 40 of the supporting portion 80 penetrates A bearing for guiding rotation of the moving unit 40 can be installed.
Meanwhile, the fixing portion 20 is connected to a rotation portion 50 for rotating the workpiece 90 in place so that the machining portion 92 can be polished by the polishing portion 30, which will be described later.
The rotation unit 50 is further divided into a rotation shaft 51 and a driving unit 52.
The rotary shaft 51 receives a driving force from a driving part 52 to rotate the fixing part 20 in place and is formed in a circular bar shape and fixed to the center part of the end of the moving part 40 do.
A pulley 511 is mounted at an end of the rotary shaft 51.
At this time, a sprocket may be mounted at the end of the rotary shaft 51 instead of the pulley 511.
The driving unit 52 may be formed by the known AC motor or DC motor, and the motor shaft is rotated in the forward or reverse direction.
The drive unit 52 and the pulleys 511 of the rotary shaft 51 are connected through a single chain 53.
As a result, when the motor shaft is rotated by applying power to the driving unit 52, the rotation shaft 51 and the fixing unit 20 are rotated in place so that the workpiece 90 fixed to the fixing unit 20 is rotated And is rotated in place.
The grinding unit 30 grinds the machining portion 92 of the workpiece 90 and can be formed by a known grinding wheel.
In this case, the polishing unit 30 may be formed of the same materials as those used in the polishing apparatus, such as charcoal or metal material, instead of the grinding wheel.
The polishing portion 30 is formed in a circular shape and has a length longer than the length of the workpiece 90, so that the machined portion 92 can be polished at a time.
The polishing unit 30 is connected to a known AC motor or DC motor and rotated in place.
The polishing unit 30 receives the driving force from the AC motor or the DC motor while being in contact with the machining site 92 of the workpiece 90 and is rotated in place so that the machining site 92 of the workpiece 90 is curved And the surface is polished so as to be in a smooth state.
Hereinafter, the operation of the present invention based on such a configuration and the unique effects generated in the process will be described.
The plane portion 91 of the workpiece 90 is received in the receiving groove 20a of the stationary portion 20 in the state in which the piston of the moving portion 40 is inserted as shown in Fig. So that the rear surface of the work 90 connected to the flat surface portion 91 is fixed by the rear fixing portion 22. [
Thereafter, a hydraulic or pneumatic pressure is injected into the moving part 40 to cause the piston to be pulled out, so that the pointed portion of the rotation guide part 10 positioned on the horizontal line with the work piece 90 is positioned on the front side of the work 90 So that it is axially fixed to the formed groove 90a.
At this time, a mounting plate on which the fixing part 20, the moving part 40 and the rotation part 50 are installed is formed on the upper surface of the work table 60, and the angle of the mounting plate is adjusted on the work table 60, An angle adjusting unit 62 for allowing the driving unit 90 and the rotation unit 50 to be positioned on a horizontal line and a deceleration unit 63 for adjusting the speed of the driving unit 52 are provided.
The configuration and operation of the angle adjusting unit 62 and the decelerating unit 63 are the same as those used in a general polishing apparatus, and thus a detailed description thereof will be omitted.
Subsequently, power is applied to the driving unit 52 to cause the workpiece 90 to rotate in place, and power is applied to the motor connected to the polishing unit 30 to rotate the polishing unit 30 in place, So that the machining portion 92 of the workpiece 90 is polished.
When the polishing of the workpiece 90 is completed, the operation of the motor connected to the driving part 52 and the polishing part 30 is stopped and the piston of the moving part 40 is drawn in. Remove the finished workpiece (90).
Thereafter, a new workpiece 90 is attached to the fixing portion 20, and the above-described processes are repeatedly performed.
That is, the machining apparatus 1 according to the present invention grinds the machining portion 92 in a state where the workpiece 90 having the above-described shape is stably fixed through the fixing portion 20, It is possible to prevent the workpiece 90 from flowing due to the contact force between the workpiece 90 and the polishing unit 30 and the vibrating force due to the rotation of the polishing unit 30, thereby reducing the defective rate of the processed workpiece 90 And productivity can be improved.
In the conventional machining apparatus, since the grinding section 30 grinds while being rotated at a predetermined angle along the longitudinal direction and the upward and downward directions of the machining section 92, the machining completion time for one workpiece 90 is 1 But the polishing apparatus 30 according to the present invention is polished while being rotated in a state where the polishing section 30 is in contact with the entire machining site 92 of the workpiece 90. Therefore, It is possible to complete the machining completely.
That is, the machining apparatus 1 according to the present invention can remarkably shorten the machining time of the workpiece 90 compared to the conventional machining apparatus, thereby lowering the manufacturing cost of each workpiece 90 and increasing the working speed And can reduce the defect rate.
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 exemplary embodiments, Of the right.
10: rotation guide part 20:
20a: receiving groove 21: side fixing portion
22: rear fixing part 30: polishing part
40: moving part 50: rotating part
51: rotating shaft 511: pulley
52: driving part 53: chain
60: work table 61: mounting plate
62: Angle adjusting section 63: Deceleration section
64: control unit 70:
80: Support 90: Workpiece
90a: groove 91: plane portion
92: Processing site

Claims (4)

  1. There is provided a device for machining a workpiece having a flat surface formed on both sides thereof and formed with a curved or polygonal shape between the flat surfaces thereof while rotating the workpiece symmetrically about the rotation axis,
    A rotation guide portion fixed to one side of the workpiece and guiding rotation of the workpiece in place;
    A fixing part which is symmetrical with the rotation guide part with the workpiece interposed therebetween and surrounds and fixes the flat part of the workpiece; And
    And a polishing unit spaced a predetermined distance from one side of the rotation guide unit and polishing a machining area of the workpiece,
    The fixed portion
    A side fixing part spaced apart from each other by a predetermined distance and contacting the flat part of the processing part; And
    And a rear fixing part formed perpendicularly to the side fixing part and connecting the side fixing part and contacting the rear surface of the processing part,
    Wherein the side fixing portion and the rear fixing portion are integrally formed in the shape of a "C" -shaped bent plate,
    Wherein a part of the workpiece is inserted between the side fixing part and the rear surface fixing part, and a receiving groove is formed in which a part of the both side flat parts and a part of a side surface of the object to be processed are tightly fixed.
  2. delete
  3. The method of claim 1,
    And a moving part connected to the fixing part to move the fixed part so that the work piece moves in a direction in which the work piece is moved toward or away from the rotation guide part,
    Further comprising:
  4. 4. The method of claim 3,
    Further comprising a rotating portion for rotating the workpiece in place,
    The rotation unit includes:
    A rotating shaft connected to the moving unit,
    A driving unit connected to the rotating shaft and rotating the rotating shaft in place,
    .
KR1020150057329A 2015-04-23 2015-04-23 Manufacturing apparatus KR101759278B1 (en)

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Application Number Priority Date Filing Date Title
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KR20160126360A KR20160126360A (en) 2016-11-02
KR101759278B1 true KR101759278B1 (en) 2017-07-18

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KR102255915B1 (en) * 2020-11-23 2021-05-31 (주)한국금시장거래소 Apparatus for grinding noble metal

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2004338035A (en) * 2003-05-15 2004-12-02 Mach Eng:Kk Parallel opening/closing chuck

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20120004238A (en) 2010-07-06 2012-01-12 주식회사 메르디안솔라앤디스플레이 Apparatus for grinding

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2004338035A (en) * 2003-05-15 2004-12-02 Mach Eng:Kk Parallel opening/closing chuck

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