KR20170089708A - Jig for education - Google Patents

Jig for education Download PDF

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Publication number
KR20170089708A
KR20170089708A KR1020160010299A KR20160010299A KR20170089708A KR 20170089708 A KR20170089708 A KR 20170089708A KR 1020160010299 A KR1020160010299 A KR 1020160010299A KR 20160010299 A KR20160010299 A KR 20160010299A KR 20170089708 A KR20170089708 A KR 20170089708A
Authority
KR
South Korea
Prior art keywords
collet
jig
fixing column
base plate
taper
Prior art date
Application number
KR1020160010299A
Other languages
Korean (ko)
Inventor
조현덕
윤상철
백철민
이승욱
신창환
전현우
채승용
허준환
황갑현
Original Assignee
경일대학교산학협력단
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.)
Filing date
Publication date
Application filed by 경일대학교산학협력단 filed Critical 경일대학교산학협력단
Priority to KR1020160010299A priority Critical patent/KR20170089708A/en
Publication of KR20170089708A publication Critical patent/KR20170089708A/en

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Classifications

    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09B—EDUCATIONAL OR DEMONSTRATION APPLIANCES; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE; MODELS; PLANETARIA; GLOBES; MAPS; DIAGRAMS
    • G09B25/00—Models for purposes not provided for in G09B23/00, e.g. full-sized devices for demonstration purposes
    • G09B25/02—Models for purposes not provided for in G09B23/00, e.g. full-sized devices for demonstration purposes of industrial processes; of machinery
    • 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
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
    • B25B11/00—Work holders not covered by any preceding group in the subclass, e.g. magnetic work holders, vacuum work holders
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09B—EDUCATIONAL OR DEMONSTRATION APPLIANCES; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE; MODELS; PLANETARIA; GLOBES; MAPS; DIAGRAMS
    • G09B19/00—Teaching not covered by other main groups of this subclass
    • G09B19/24—Use of tools

Abstract

The present invention relates to a jig for education, comprising: a base plate (10); a fixing column (20) which is installed on a top surface of the base plate (10); a support plate (30) which is installed on a top surface of the fixing column (20), and has a protruding taper (32) on a central top surface; a collet (40) which is installed on an upper part of the protruding taper (32) and has multiple sealing grooves (42) in the circumferential direction; a connection bolt (50) which penetrates centers of the fixing column (20), the protruding taper (32), and the collet (40), and has a head (52) on an upper end thereof to be hung on the collet (40); and an operating member (60) which is installed within the fixing column (20), and is connected to a lower end of the connection bolt (50) to reciprocate the connection bolt (50). Therefore, the jig has a simple structure, such that a design and manufacturing for a processing object to be processed by students can be easy. In addition, a manufacturing cost is low to be proper for education.

Description

Educational jig {JIG FOR EDUCATION}

The present invention relates to an educational jig, and more particularly, to an educational jig having a simple structure and easy to manufacture and process.

A jig is a special tool that attaches a workpiece or attaches to a workpiece to designate the position of the part to be machined and guide the machining. Jigs are used in drilling machines, boring machines, thread cutting machines and so on. In the case of continuous mass production of products, the necessity of the jig becomes higher. Specifically, the jig lowers the defect rate by increasing the precision and producing the product uniformly.

Such a jig is also used in a curriculum to help students easily adapt to the actual industrial field, for example, an educational jig disclosed in 'Patent Document 1'.

However, the jig of Patent Document 1 is a welding jig, which is difficult to use for machining.

KR 20-2014-0000500 U (2014. 1. 23)

SUMMARY OF THE INVENTION The present invention has been made in order to solve the above problems, and it is an object of the present invention to provide an educational jig that is simple in structure and easy to manufacture and process.

According to an aspect of the present invention, there is provided an educational jig comprising: a base plate; A fixed column installed on an upper surface of the base plate; A support plate installed on the upper surface of the stationary column and having a protruding taper formed on a central upper surface thereof; A collet provided on the protruding taper and having a plurality of tensile grooves formed along the circumferential direction; A connection bolt installed through the fixed column, the protruding taper and the center of the collet, and having a head formed at an upper end thereof and engaged with the collet; And an operating member installed in the fixed column and connected to the lower end of the connecting bolt to reciprocate the connecting bolt, and as the head of the connecting bolt presses the collet, the collet extends radially It is a technical feature.

The teaching jig according to the present invention has a simple structure and is easy to design and manufacture according to the object to be processed by the students. In addition, the production cost is also low, which is suitable for education.

1 is a perspective view showing an educational jig according to the present invention;
Fig. 2 is an exploded perspective view of Fig.
3 is a perspective view showing a collet
Fig. 4 is a view showing an installation state of the present invention
Fig. 5 is a side sectional view of Fig. 4

Hereinafter, a teaching jig according to the present invention will be described in detail with reference to the accompanying drawings.

2 is an exploded perspective view of FIG. 1, FIG. 3 is a perspective view showing a collet, and FIG. 4 is a perspective view of the installation state of the present invention. FIG. And Fig. 5 is a side sectional view of Fig.

The teaching jig according to the present invention comprises a base plate (10); A fixing column 20 installed on the upper surface of the base plate 10; A support plate (30) provided on the upper surface of the fixed column (20) and having a protruding taper (32) formed on a central upper surface thereof; A collet (40) provided on the protruding taper (32) and having a plurality of tensile grooves (42) formed along the circumferential direction; A connecting bolt 50 installed through the center of the fixed column 20, the protruding taper 32 and the collet 40 and having a head 52 formed at an upper end thereof and engaged with the collet 40; And an operation member 60 installed in the fixed column 20 and connected to the lower end of the connection bolt 50 to reciprocate the connection bolt 50.

Each component will be described in detail below.

The base plate 10 is a base element of the educational jig according to the present invention and is formed in a plate shape as shown in Fig.

The stationary column 20 has a configuration in which the interior of the stationary column 20 is in the form of an empty table as shown in Figs. Specifically, the stationary column 20 has a flat shape and includes a plate 22 positioned at a predetermined distance from the base plate 10; And a leg (24) fixed to the bottom surface of the plate (22) and provided on the upper surface of the base plate (10).

The support plate 30 is formed in the shape of a circular plate, and a projecting taper 32 is formed on the central upper surface.

As shown in FIG. 2, the protruding taper 32 has a cylindrical shape in which a through hole 34 is formed, and has a shape that becomes smaller in diameter toward the upper part.

The through hole 34 is formed so as to extend from the inside of the projecting taper 32 to the support plate 30.

The collet (COLLET) 40 is formed in the shape of a cap (CAP) having a hollow inside and an open bottom, a plurality of tensile grooves 42 formed along the circumferential direction, and a through hole 44 Is formed.

The tensile groove 42 has an inner tensile groove 42a that is cut outward from the inside of the collet 40 and extends from the through hole 44 as shown in Figure 3 and an inner tensile groove 42b extending inward from the outside of the collet 40. [ And an outer tension groove 42b. The inner tension groove 42a serves to allow the upper portion to contract when the collet 40 is radially expanded and the outer tension groove 42b serves to spread the collet 40. [

As shown in FIG. 3, the collet 40 is formed to have a smaller diameter toward the upper part. So that the collet 40 can be inserted into the projecting taper 32 of the support plate 30. At this time, it is preferable that the degree of hollow inclination formed inside the collet 40 coincides with the inclination of the projecting taper 32.

The connecting bolt 50 has a head 52 having a diameter larger than the diameter of the through hole 44 of the collet 40 as shown in FIG. And a body 54 formed to be long on the bottom surface of the head 52. This connection bolt 50 is installed so that the body 54 passes through the center of the stationary column 20, the projecting taper 32 and the collet 40 and the head 52 is positioned on top of the collet 40 . The diameter of the head 52 is formed to be larger than the diameter of the through hole 44 of the collet 40 so that the collet 40 can not penetrate through the head 52.

The actuating member 60 is a cylinder for reciprocating the piston, such as a hydraulic cylinder or a pneumatic cylinder, and is installed inside the stationary column 20. The operation member 60 is connected to the end of the connecting bolt 50 by the piston to reciprocate the connecting bolt 50.

The present invention is characterized in that when the connecting bolt 50 is pulled in the vertical direction by the operation of the operating member 60 with the collet 40 inserted into the object T as shown in Figs. 4 and 5, The head 52 of the bolt 50 presses the upper surface of the collet 40 so that the inner periphery of the collet 40 is moved along the outer periphery of the projecting taper 32. As a result, the inner periphery of the collet 40 receives a force in the outward direction, and the collet 40 is formed with the outer tensile grooves 42b to expand radially to press the inner periphery of the workpiece T. [ At this time, the periphery of the through hole 44 may be contracted due to the inner tension groove 42a in the course of the opening of the collet 40, so that the collet 40 can be naturally opened. Through this process, the collet 40 fixes the inner periphery of the object T to be processed.

On the other hand, when the object to be processed T is provided with the fixing pin 36, it can be more firmly fixed to the supporting plate 30.

T: object to be processed 10: base plate
20: stationary column 22: plate
24: leg 30:
32: projecting taper 34: through hole
36: Fixing pin 40: Collet
42: tensile groove 42a: inner tensile groove
42b: outer tension groove 44: through hole
50: connecting bolt 52: head
54: body 60: actuating member

Claims (1)

A base plate (10);
A fixing column 20 installed on the upper surface of the base plate 10;
A support plate 30 provided on the upper surface of the fixed column 20 and having a protruding taper 32 formed in a central upper surface thereof;
A collet (40) provided on the protruding taper (32) and having a plurality of tensile grooves (42) formed along the circumferential direction;
A connecting bolt 50 and a connecting bolt 50 are installed through the center of the fixing column 20, the protruding taper 32 and the collet 40,
And an operation member 60 installed inside the stationary column 20 and connected to a lower end of the connection bolt 50 to reciprocate the connection bolt 50,
Wherein the collet (40) radially flares as the head (52) of the connecting bolt (50) presses the collet (40).
KR1020160010299A 2016-01-27 2016-01-27 Jig for education KR20170089708A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020160010299A KR20170089708A (en) 2016-01-27 2016-01-27 Jig for education

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020160010299A KR20170089708A (en) 2016-01-27 2016-01-27 Jig for education

Publications (1)

Publication Number Publication Date
KR20170089708A true KR20170089708A (en) 2017-08-04

Family

ID=59654205

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1020160010299A KR20170089708A (en) 2016-01-27 2016-01-27 Jig for education

Country Status (1)

Country Link
KR (1) KR20170089708A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108161510A (en) * 2018-01-25 2018-06-15 安徽华晶微电子材料科技有限公司 A kind of adjustable clamp
CN109118930A (en) * 2018-07-20 2019-01-01 同济大学 A kind of shield tunnel pin-connected panel tunnel segment structure model and designing and manufacturing method

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108161510A (en) * 2018-01-25 2018-06-15 安徽华晶微电子材料科技有限公司 A kind of adjustable clamp
CN109118930A (en) * 2018-07-20 2019-01-01 同济大学 A kind of shield tunnel pin-connected panel tunnel segment structure model and designing and manufacturing method
CN109118930B (en) * 2018-07-20 2020-10-02 同济大学 Shield tunnel split mounting type segment structure model and design and manufacturing method

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