KR101672918B1 - Jig For Piston Mold That containing Hard Material - Google Patents

Jig For Piston Mold That containing Hard Material Download PDF

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Publication number
KR101672918B1
KR101672918B1 KR1020150159413A KR20150159413A KR101672918B1 KR 101672918 B1 KR101672918 B1 KR 101672918B1 KR 1020150159413 A KR1020150159413 A KR 1020150159413A KR 20150159413 A KR20150159413 A KR 20150159413A KR 101672918 B1 KR101672918 B1 KR 101672918B1
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KR
South Korea
Prior art keywords
fixed end
mold
sidewall
fixing end
piston
Prior art date
Application number
KR1020150159413A
Other languages
Korean (ko)
Inventor
서충배
Original Assignee
서충배
동서페더럴모굴 주식회사
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Application filed by 서충배, 동서페더럴모굴 주식회사 filed Critical 서충배
Priority to KR1020150159413A priority Critical patent/KR101672918B1/en
Application granted granted Critical
Publication of KR101672918B1 publication Critical patent/KR101672918B1/en

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    • 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
    • B23Q3/00—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine
    • B23Q3/02—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine for mounting on a work-table, tool-slide, or analogous part
    • B23Q3/06—Work-clamping means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
    • B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
    • B23P15/10—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass pistons
    • 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
    • B23Q3/00—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine
    • B23Q3/02—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine for mounting on a work-table, tool-slide, or analogous part
    • B23Q3/06—Work-clamping means
    • B23Q3/062—Work-clamping means adapted for holding workpieces having a special form or being made from a special material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
    • B23P2700/00—Indexing scheme relating to the articles being treated, e.g. manufactured, repaired, assembled, connected or other operations covered in the subgroups
    • B23P2700/50—Other automobile vehicle parts, i.e. manufactured in assembly lines
    • 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
    • B23Q2703/00—Work clamping
    • B23Q2703/02—Work clamping means
    • B23Q2703/10—Devices for clamping workpieces of a particular form or made from a particular material
    • 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
    • B23Q2703/00—Work clamping
    • B23Q2703/12—Accessories for attaching

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Gripping On Spindles (AREA)

Abstract

The present invention relates to a jig for molding a piston, which more easily cuts a part of a piston molding apparatus by being mounted on a chuck of a CNC lathe. To process a mold part comprising a hexahedral fixing end installed and fixed on the molding apparatus and a mold unit in the form of a rod provided eccentrically to the fixing end on an upper part of the fixing end, the configuration comprises: a cylindrical chucking unit which is capable of being chucked on a chuck of a CNC lathe; and a product grip unit which is installed on one side of the chucking unit to grip the fixing end of the mold part. The product grip unit comprises: first and second side wall bodies which provide a concave mounting space where the fixing end is mounted thereon and come in contact with first and second side surfaces facing the fixing end; a third side wall body which comes in contact with a third side surface of the fixing end; and a fourth side wall body which is installed to face the third side wall body, and comes in contact with a fourth side surface of the fixing end. Therefore, the product grip unit is formed in a cylindrical shape. The product grip unit further comprises: bolt holes which are installed in a horizontal direction on any one of the first and second side wall bodies and any one of the third and fourth side wall bodies; and a tightening bolt which is coupled to the bolt hole by means of a screw, and presses a side wall of the fixing end inserted into the mounting space.

Description

[0001] The present invention relates to a jig for manufacturing a piston,

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a jig for a piston manufacturing die, and more particularly, to a jig for a piston manufacturing die that can easily cut a part of a piston manufacturing die by mounting the die on a chuck of a CNC lathe.

The piston for a vehicle engine is basically formed by a gravity casting method, and is then completed through a partial cutting process. A casting mold is required for the casting of the piston, and the structure of the casting mold is complicated due to the shape characteristics of the piston. That is, in order to manufacture a piston, a mold assembly having several mold parts is required. The present invention relates to a jig for processing one of the mold parts.

1 is a view of a mold part of a mold assembly for applying the present invention. This mold component 100 is for forming a piston pinhole and includes a fixed end 103 fixed to the mold apparatus and a mold part 101 provided on the fixed end 103 to form a piston pinhole . The fixed end 103 may be configured in a hexahedron shape. In the mold component 100, the first fixed end 103 and the mold part 101 are eccentric. That is, the center of the fixed end 103 and the center of the mold part 101 do not coincide with each other. The piston pin is eccentric with respect to the piston head. In this case, the mold 101 can not be machined while rotating the spindle while the fixed end 103 is held by the chuck. Therefore, it was necessary to use a universal lathe to process the work, and therefore, it took a long time to work. The fixed end 103 and the molded part 101 are connected to the connecting end 105 as a mold part and the connecting end 105 is concentric with the molded part 101. [

On the other hand, in order to improve the abrasion resistance of the mold with respect to the material of the piston manufacturing mold, there is a case where a material having high strength is partially employed. Since the mold having the hybrid material is difficult to cut, a special jig and CNC lathe It is necessary to develop a cutting program using a cutting program.

Korean Patent Application No. 10-2009-7023553 Korean Patent Application No. 10-2013-0167152

SUMMARY OF THE INVENTION It is an object of the present invention to solve the above problems and provide a jig capable of processing an eccentric mold component by using a CNC lathe as a mold component of a mold assembly for manufacturing a piston, . Thereby making it possible to more easily process various piston dies of different sizes depending on the type of vehicle. It is also an object of the present invention to provide a base for performing a jig or a CNC machining program which makes it possible to more easily carry out cutting machining of a piston manufacturing mold which is excellent in rigidity and hard to process,

The above object is achieved by a mold part comprising a fixed end in the form of a hexahedron which is fixedly mounted on a mold apparatus and a rod shaped mold part which is eccentrically provided on the fixed end on the fixed end,

A cylindrical chucking portion that can be chucked to a chuck of a CNC lathe; And a product gripping part for gripping the fixed end of the mold part, the product gripping part being installed on one side of the chucking part, wherein the product gripping part comprises:

A first and a second sidewalls contacting the first and second opposite sides of the fixed end, the fixed end being provided with a recessed seating space through which the fixed end can be inserted; A third sidewall contacting the third side of the fixed end; And a fourth sidewall facing the third sidewall, the fourth sidewall being in contact with a fourth side of the fixed end;

A bolt hole provided laterally in one of the first and second sidewall members and one of the third and fourth sidewall members;

And a tightening bolt screwed to the bolt hole to press the side wall of the fixed end inserted in the seating space.

According to another aspect of the present invention, the fourth sidewall member can be disassembled by being assembled with the first sidewall member by a fastening bolt.

According to another aspect of the present invention, the fourth sidewall may have a flat cross-section shape.

According to another aspect of the present invention, the center point of the chucking portion and the center point of the seating space of the product gripping portion may be eccentric.

According to the present invention, a constituent part of a piston mold for molding a piston pinhole or the like on a CNC lathe during machining of a piston manufacturing mold made of various kinds of difficult materials is eccentrically mounted on a CNC lathe There is provided a jig for a piston manufacturing mold capable of being mounted and machined. According to this, by machining a metal part whose shape is eccentric by using an automatic machine, the productivity can be remarkably improved.

1 is a perspective view of component parts of a piston mold for applying the jig of the present invention.
2 is a perspective view of a jig for a piston manufacturing die for machining difficult-to-cut materials according to an embodiment of the present invention.
3 is a partial perspective view of a jig for manufacturing a piston according to an embodiment of the present invention.
4 is a plan view of a jig for a piston manufacturing die for machining a difficult-to-cut material according to an embodiment of the present invention.
FIG. 5 is a plan sectional view of a jig for manufacturing a piston according to an embodiment of the present invention taken along the line AA of FIG. 2. FIG.
FIG. 6 is a perspective view of a state in which a jig for a piston manufacturing mold is installed for machining a difficult-to-cut material according to an embodiment of the present invention.

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings. Referring to Figure 2, basically, other drawings are referred to as needed.

A piston manufacturing mold jig (hereinafter simply referred to as "jig") for machining a difficult-to-cut material of the present invention is chucked to a chuck provided inside a CNC lathe. The CNC lathe as well as the machining center can be installed in the CNC machine, so the scope of the present invention is not limited by the machine.

The piston manufacturing mold, that is, the mold component 100 to which the present invention is applied is as shown in FIG.

The jig 1 of the present invention comprises a fixed end 103 in the form of a hexahedron which is fixed to a mold apparatus and a bar shaped mold unit 101 which is eccentrically provided on the fixed end 103 on the fixed end 103 And is for processing the shape of the mold part 101, particularly for machining the mold part 100 constituted. A connecting portion 105 is interposed between the fixed end 103 and the mold portion 101. This is a component that functions as a part of the mold component and is concentric with the mold portion 101. The mold portion 101 is processed It can also be processed together.

A jig (1) of the present invention comprises a cylindrical chucking part (3) that can be chucked to a chuck of a CNC lathe and a fixed end (103) of the mold part which is installed on one side of the chucking part And a product gripping part for gripping.

The product gripping part is formed in the form of a cylinder, which provides a recessed seating space 2 into which the fixed end 103 can be inserted. The product gripping portion is composed of the first, second, third and fourth side walls 7, 7 ', 5, 9.

The first and second sidewalls 7 and 7 'are brought into contact with the first and second opposite side surfaces of the fixed end 103, respectively. The third sidewall 5 is brought into contact with the third side of the fixed end 103. [ The fourth sidewall 9 is provided so as to face the third sidewall 5 and is brought into contact with the fourth side of the fixed end 103. Here, the expression "contact" includes not only a direct contact but also a concept of touching through a thickness adjusting block 19 (see FIG. 2) in the form of a small plate having a constant thickness such as a clearance gauge. It is preferable that the product grasping portion is formed in a cylindrical shape so as to be rotated at a high speed and free from vibration during rotation. Therefore, the product gripping portion has a cylindrical shape with a square hole.

The first, second and third sidewalls 7, 7 ', 5 may be integrally fixed by welding. However, in some cases, it may be of a prefabricated structure for detachability.

A bolt hole is formed in the side wall of the product gripping portion so that the fixed end 103 can be fixed with a strong force in a state of being fitted in the seating space 2, and tightening bolts 11 and 13 are fastened to the bolt hole . The bolt holes are laterally installed in one of the first and second sidewalls 7, 7 'and one of the third and fourth sidewalls 5, 9. The bolt holes are arranged in a plane L (L) shape for uniformly aligning the center point of the fixed end 103.

The tightening bolts (11, 13) are screwed into the bolt holes to press the side wall of the fixed end (103) fitted in the seating space.

According to the embodiment of the present invention, the fourth sidewall 9 can be disassembled as shown in Fig. 3 by being assembled with the fastening bolts 12 in the first and second sidewalls 7, 7 ' have. Further, the fourth sidewall 9 may have a flat cross-section shape. This is for allowing the fixed end 103 to slightly protrude laterally from the seating space 2 and then force the inner surface 9a of the fourth sidewall 9 to strongly press the protruding portion. A plurality of projections (not shown) may be protruded from the inner side surface 9a to increase frictional force. The shape of the fixed end 103 may vary from piston to piston, in which case the shape of the fourth sidewall 9 may be selected and used accordingly.

According to another embodiment of the present invention, the center point C1 of the chucking portion 3 and the center point C2 of the seating space 2 of the product grasp portion may be eccentric as shown in Fig. The center point (C1) of the chucking portion (3) is equal to the center point of the mold portion (101).

This is in the same context as the piston pin is eccentrically mounted to the piston head. The fixed part 103 and the molded part 101 are eccentric so that the molded part 101 can not be machined properly when the fixed part 103 is fixed to the chuck of the shelf. So that the center of rotation of the spindle coincides with the center of the axis of the mold part 101, and serves as a medium to process the mold part 101 while being held by the chuck.

The configuration shown and described above is merely a preferred embodiment based on the technical idea of the present invention. It will be understood by those skilled in the art that various changes and modifications may be made without departing from the scope of the present invention.

1: piston manufacturing mold jig 2: seat space
3: Chucking parts 7, 7 ', 5, 9: First, second,
11, 13: fastening bolt 100: mold part
101: Mold part 103: Fixed end

Claims (4)

A mold unit having a fixed end in the form of a hexahedron fixed to the mold apparatus and a rod-shaped mold unit provided on the fixed end in an eccentric form with the fixed end,
A cylindrical chucking portion 3 that can be chucked to a chuck of a CNC lathe; And a product gripping part installed on one side of the chucking part to grip the fixed end of the mold part, wherein the product gripping part comprises:
Wherein the fixed end (103) is provided with a recessed seating space (2) through which the first and second side walls (7, 7 '), which are in contact with the facing first and second side surfaces of the fixed end (103) ); A third sidewall 5 contacting the third side surface of the fixed end 103; And a fourth sidewall (9) provided so as to face the third sidewall (5) and in contact with a fourth side surface of the fixed end (103);
A bolt hole laterally installed in one of the first and second sidewalls 7, 7 'and one of the third and fourth sidewalls 5, 9;
And tightening bolts (11, 13) screwed into the bolt hole to press the side wall of the fixed end inserted in the seating space;
The center point C1 of the chucking portion 3 and the center point C2 of the seating space 2 of the product gripping portion are eccentric so that the center of the chuck of the CNC lathe coincides with the center point of the mold portion;
The fourth sidewall 9 is formed so that the fixed end 103 slightly protrudes laterally from the seating space 2 and then the inner side surface 9a of the fourth sidewall 9 is projected Wherein the jig for the piston manufacturing mold includes a hard material having a flat cross-section so as to strongly press the part to be hardened.
The method according to claim 1,
The fourth sidewall may be formed so that the shape of the fixed end (103) differs from one piston to another,
Wherein the first and second side walls (7, 7 ') are disassembled by being assembled with fastening bolts.
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KR1020150159413A 2015-11-13 2015-11-13 Jig For Piston Mold That containing Hard Material KR101672918B1 (en)

Priority Applications (1)

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KR1020150159413A KR101672918B1 (en) 2015-11-13 2015-11-13 Jig For Piston Mold That containing Hard Material

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Application Number Priority Date Filing Date Title
KR1020150159413A KR101672918B1 (en) 2015-11-13 2015-11-13 Jig For Piston Mold That containing Hard Material

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KR101672918B1 true KR101672918B1 (en) 2016-11-04

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101877422B1 (en) * 2017-03-17 2018-07-11 주식회사 디피엠 Jig for making vaccuum pump rotor

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0497626U (en) * 1991-01-14 1992-08-24
JPH06146631A (en) * 1992-11-16 1994-05-27 Yokoi Kogyo Kk Underground multistory garage and method for taking in and out vehicle in this garage
KR20070033263A (en) * 2005-09-21 2007-03-26 에프-툴 인터내셔널 아게 Clamping Device for Work Part
KR20090127955A (en) 2007-04-13 2009-12-14 페더럴-모걸 파워트레인, 인코포레이티드 Piston mold assembly and method of constructing a piston therewith
KR20150078072A (en) 2013-12-30 2015-07-08 동양피스톤 주식회사 Mold assembly for piston producing

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0497626U (en) * 1991-01-14 1992-08-24
JPH06146631A (en) * 1992-11-16 1994-05-27 Yokoi Kogyo Kk Underground multistory garage and method for taking in and out vehicle in this garage
KR20070033263A (en) * 2005-09-21 2007-03-26 에프-툴 인터내셔널 아게 Clamping Device for Work Part
KR20090127955A (en) 2007-04-13 2009-12-14 페더럴-모걸 파워트레인, 인코포레이티드 Piston mold assembly and method of constructing a piston therewith
KR20150078072A (en) 2013-12-30 2015-07-08 동양피스톤 주식회사 Mold assembly for piston producing

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101877422B1 (en) * 2017-03-17 2018-07-11 주식회사 디피엠 Jig for making vaccuum pump rotor

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