KR102019712B1 - Zig and apparatus for measuring inserting and removing of snap-fit assembly comprising the same - Google Patents

Zig and apparatus for measuring inserting and removing of snap-fit assembly comprising the same Download PDF

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Publication number
KR102019712B1
KR102019712B1 KR1020150079882A KR20150079882A KR102019712B1 KR 102019712 B1 KR102019712 B1 KR 102019712B1 KR 1020150079882 A KR1020150079882 A KR 1020150079882A KR 20150079882 A KR20150079882 A KR 20150079882A KR 102019712 B1 KR102019712 B1 KR 102019712B1
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KR
South Korea
Prior art keywords
hook
tip
loop
snap
specimen
Prior art date
Application number
KR1020150079882A
Other languages
Korean (ko)
Other versions
KR20160143331A (en
Inventor
박형권
이정환
김선우
윤성환
이정노
Original Assignee
주식회사 엘지화학
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Publication date
Application filed by 주식회사 엘지화학 filed Critical 주식회사 엘지화학
Priority to KR1020150079882A priority Critical patent/KR102019712B1/en
Publication of KR20160143331A publication Critical patent/KR20160143331A/en
Application granted granted Critical
Publication of KR102019712B1 publication Critical patent/KR102019712B1/en

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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
    • G01L5/00—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
    • G01L5/00—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes
    • G01L5/0028—Force sensors associated with force applying means
    • G01L5/0033—Force sensors associated with force applying means applying a pulling force
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
    • G01L5/00—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes
    • G01L5/0028—Force sensors associated with force applying means
    • G01L5/0038—Force sensors associated with force applying means applying a pushing force

Abstract

The present invention relates to a jig and a snap fit insertion / release force measuring device comprising the same, in accordance with an aspect of the present invention, a tension tip having a grip for securing a hook specimen or a loop specimen and a loop tip for engaging the hook specimen or Snap fit with a jig and a drive cell for elevating the tension grip relative to the jig, and a load cell for measuring the insertion and release forces of the test piece and the tip, with the hook tip for engaging the loop specimen Insertion / release force measuring device is provided.

Description

Zig and apparatus for measuring inserting and removing of snap-fit assembly comprising the same}

The present invention relates to a jig and a snap fit insertion / release force measuring apparatus including the same.

Various methods are used in the assembly technique of the plastic part (piece), but a snap-fit fastening structure is used to simplify the recycling of materials and the assembly process. Snap fit construction provides a simple yet robust mechanical attachment and detachment.

Typically snap fit fastening structures (assemblies) include male hook structures and female loop structures that mate with the hook structures. For example, the hook structure includes a protrusion and the loop structure includes a groove that engages the protrusion. In the case of the conventional snap fit assembly, the theoretical and predictive force of insertion and release force are calculated. However, the insertion force and the release force of the snap fit assembly need to be supported by actual experimental results as well as the theoretical approach for design optimization, and the development of a jig and a measuring device for measuring this is required.

The present invention is to provide a jig capable of measuring the insertion force and the release force of the snap-fit assembly and to provide a snap-fit insertion / release force measuring apparatus comprising the same.

In order to solve the above problems, according to an aspect of the present invention, for measuring the insertion force and the release force of the snap-fit assembly consisting of a hook (Hoop) and a loop structure that engages the hook As a measuring device, tension grips having grips for holding hook specimens or loop specimens and loop tips for engaging the hook specimens or hook tips for engaging the loop specimens are subject to tension grips against jigs and jigs that can be selectively mounted. A snap fit insertion / release force measurement device is provided that includes a drive cell for descending and a load cell for measuring insertion and release forces of the specimen and tip.

Further, according to another aspect of the present invention, the first member rotatably mounted to the base member and the base member, and the second member and the second member mounted to the first member so as to be slidably movable in the first direction. A jig is provided that is slidably mounted in two directions and includes a third member to which the loop tip or hook tip is detachably mounted.

As described above, the jig and the snap-fit insertion / release force measuring apparatus including the jig according to an embodiment of the present invention have the following effects.

Insertion and release forces can be measured by replacing the loop tip or hook tip. It is also possible to align the jig and tension grips through rotation / parallel movement. In addition, the lower grip of the conventional tensile tester can be replaced with the jig according to the present invention to measure the insertion force and the release force of the snap-fit assembly.

1 is a perspective view illustrating main parts of a snap fit insertion / release force measuring apparatus according to an exemplary embodiment of the present invention.
2 is a perspective view showing a jig according to an embodiment of the present invention.
3 is an exploded perspective view showing a jig related to an embodiment of the present invention.
4 is a perspective view showing a hook tip associated with the present invention.
5 is a perspective view showing a loop tip related to the present invention.

Hereinafter, a jig for measuring insertion force and release force of a snap-fit assembly according to an embodiment of the present invention and a snap-fit insertion / release force measuring apparatus including the same (hereinafter, abbreviated as "measurement device") are attached. It will be described in detail with reference to the drawings.

In addition, irrespective of the reference numerals, the same or corresponding components will be given the same or similar reference numerals, and redundant description thereof will be omitted. Can be.

1 is a perspective view illustrating main parts of a snap fit insertion / release force measuring apparatus 100 according to an exemplary embodiment of the present invention.

2 is a perspective view showing a jig 200 according to an embodiment of the present invention, Figure 3 is an exploded perspective view showing a jig 200 according to an embodiment of the present invention.

4 is a perspective view showing a hook tip 310 associated with the present invention, and FIG. 5 is a perspective view showing a loop tip 320 associated with the present invention.

The present invention relates to a measuring device for measuring the insertion force and the release force of a snap-fit assembly consisting of a hook and a loop structure that engages the hook.

In addition, the present invention provides a hook and a jig for mounting a hook tip or a loop tip to measure the insertion force and the release force of the snap-fit assembly consisting of a loop structure that engages the hook and Related.

Referring to FIG. 1, the measuring device 100 includes a tension grip 110 having a grip portion for fixing a hook specimen 10 or a loop specimen (not shown). The hook specimen 10 and the loop specimen are formed of a resin material as a measurement target of insertion force and release force.

In addition, the measuring device 100 includes a jig 200 to which the loop tip 320 for engaging the hook specimen 10 or the hook tip 310 for engaging the loop specimen is selectively mountable.

In addition, the measuring apparatus 100 may include a driving unit (not shown) for raising and lowering the tension grip 110 with respect to the jig 200, and a load cell for measuring insertion force and release force of the specimen and the tip ( Not shown).

Here, the tension grip 110 and the driving unit and the load cell may be the same as those of the commonly used tensile tester (UTM), a detailed description thereof will be omitted.

In addition, the tension grip 110 corresponds to the upper grip of the tensile tester, the jig 200 corresponds to the lower grip of the tensile tester. Here, in case of replacing the existing lower grip with the jig 200 of the present invention, the insertion force and the release force of the snap-fit assembly may be measured. In particular, in the case of the insertion force, it can be measured by lowering the tension grip 110, and in the case of the release force, it can be measured by raising the tension grip 110. In addition, reference numeral 120 denotes a mounting rod for mounting the jig 200 to the measuring apparatus 100.

2 and 3, the jig 200 includes a base member 210 and a first member 220 rotatably mounted to the base member 210. The base member 210 may be a circular plate. In addition, the rotation member 211 is provided on the base member 210. In addition, the first member 220 is rotatably mounted to the rotation shaft 211 of the base member 210, and the rotation ring 215 between the rotation shaft 211 and the first member 220 of the base member 210. This can be arranged. In addition, the base member 210 may be provided with an angle display unit 212 in the circumferential direction.

In addition, the jig 200 includes a second member 230 mounted to the first member 220 to be slidably movable in the first direction P1.

In addition, the jig 200 is mounted to the second member 230 so as to be slidably movable in the second direction P2, and the third member 240 on which the loop tip 320 or the hook tip 310 is mounted. Include. In addition, the loop tip 320 or the hook tip 310 is detachably mounted to the third member 240. In addition, the first direction P1 and the second direction P2 may be orthogonal to each other. Through this structure, the loop tip 320 or the hook tip 310 mounted to the third member 240 is aligned with the hook specimen 10 or the loop specimen provided in the tension grip 110. Can be rotated and / or in parallel in the phase.

Meanwhile, referring to FIG. 4, the hook tip 310 has a protrusion 311, and a through hole 312 is formed in the hook tip 310. A fixing pin (not shown) to be described later is inserted into the through hole 312. In addition, referring to FIG. 5, the roof tip 320 has a groove 321, and a through hole 322 is formed in the roof tip 320. A fixing pin (not shown) to be described later is inserted through the through hole 322.

In addition, an insertion groove 242 for inserting the loop tip 320 or the hook tip 310 is provided in the third member 240.

In addition, the jig 200 further includes a fixing pin inserted into the third member 240 while penetrating the loop tip 320 or the hook tip 310. In addition, the loop tip 320 or the hook tip 310 may pass through the loop tip 320 or the hook tip 310 to the third member 240 through a fixing pin inserted into the third member 243. It is detachably mounted.

In this case, the fixing pin may be inserted into the third member 240 in the second direction P2. An insertion hole 243 for inserting the fixing pin is provided in the third member 240, and the insertion hole 243 is provided along the second direction P2. The loop tip 320 or the hook tip 310 is inserted into the insertion groove 242 of the third member 240 so that the fixing pin may sequentially pass through the insertion hole 243 and the through holes 322 and 312. . For example, the loop tip 320 or the hook tip 310 has an insertion groove 242 such that the through holes 322 and 312 of each tip are coaxially with the insertion hole 243 of the third member 240. ) Can be inserted.

2 and 3, the first member 220 is provided with a first guide groove 221 along the first direction P1, and the second member 230 has a first guide groove 221. An inserted first guide protrusion 231 may be provided. In addition, a second guide groove 233 is provided in the second member 220 along the second direction P2, and a second guide protrusion 241 inserted into the second guide groove is provided in the third member 240. Can be prepared. In addition, the slide movement distance in the first direction P1 may be set to be larger than the slide movement distance in the second direction P2. In addition, length display parts 222 and 232 in the first direction and the second direction may be provided in the first member 220 and the second member 230, respectively.

In addition, the jig 200 may further include one or more first locking members 250 for fixing the position of the first member 220 with respect to the base member 210. In addition, the base member 210 is provided with a mounting hole 213 on which the first locking member 250 is mounted. In addition, the first locking member 250 may be provided to move up and down as it is rotated in a state of being inserted into the mounting hole 213. For example, when the first locking member 250 is rotated in the first direction, the first locking member 250 is raised, and the first locking member 250 is moved in the second direction opposite to the first direction. When rotated, the first locking member 250 is lowered, and thus can be fixed by pressing the upper surface of the first member 220.

In addition, the jig 200 may include one or more second locking members 260 to fix the position of the third member 240 with respect to the first member 220. The first member 220 is provided with a mounting hole 223 for mounting the second locking member 260, and the second locking member 260 operates in the same manner as the first locking member 250.

Meanwhile, the hook specimen 10 or the loop specimen may be formed of a resin material, and the hook tip 310 or the loop tip 320 may be formed of a metal material.

Preferred embodiments of the present invention described above are disclosed for purposes of illustration, and those skilled in the art having various ordinary knowledge of the present invention may make various modifications, changes, and additions within the spirit and scope of the present invention. And additions should be considered to be within the scope of the following claims.

10: Hook specimen
100: snap fit insertion / release force measuring device
110: tensile grip
200: jig
210: base member
220: first member
230: second member
240: third member
310: hook tip
320: loop tip

Claims (18)

A measuring device for measuring insertion force and release force of a snap-fit assembly having a hook and a loop structure engaged with the hook,
Tension grips with grips for securing hook specimens or loop specimens;
A jig optionally equipped with a loop tip for engaging the hook specimen or a hook tip for engaging the loop specimen;
A drive for raising and lowering the tension grip with respect to the jig; And
A load cell for measuring the insertion and release forces of the loop specimen and the hook tip, or the hook specimen and the loop tip,
The hook specimen or loop specimen is formed of resin material, the hook tip or loop tip is formed of metal material,
The jig includes a base member; A first member rotatably mounted to the base member; A second member slidably mounted to the first member in a first direction; And a third member slidably mounted to the second member in a second direction, wherein the third member is mounted with a loop tip or a hook tip.
The slide movement distance in the first direction is provided to be set larger than the slide movement distance in the second direction,
The loop tip or hook tip is mounted to the third member by a fixing pin inserted into the third member while penetrating the loop tip or hook tip, and the snap pin is inserted into the third member along the second direction. Insertion / release force measuring device. delete delete delete The method of claim 1,
Snap-fit insertion / release force measuring device provided to orthogonal to the first direction and the second direction. The method of claim 1,
The first member is provided with a first guide groove along the first direction,
Snap-fit insertion / release force measuring device having a first guide protrusion is inserted into the second guide groove in the second member. The method of claim 1,
The second member is provided with a second guide groove along the second direction,
A snap fit insertion / release force measuring device having a second guide protrusion inserted into the second guide groove in the third member. The method of claim 1,
And a first locking member for locking the position of the first member relative to the base member. The method of claim 1,
And a second locking member for securing the position of the third member with respect to the first member. delete The method of claim 1,
Snap-fit insertion / release force measuring device provided with an angle display portion in the base member along the circumferential direction. The method of claim 1,
Snap-fit insertion / release force measuring device having a length display portion in the first direction and the second direction in the first member and the second member, respectively. delete delete delete delete delete delete
KR1020150079882A 2015-06-05 2015-06-05 Zig and apparatus for measuring inserting and removing of snap-fit assembly comprising the same KR102019712B1 (en)

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Application Number Priority Date Filing Date Title
KR1020150079882A KR102019712B1 (en) 2015-06-05 2015-06-05 Zig and apparatus for measuring inserting and removing of snap-fit assembly comprising the same

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Application Number Priority Date Filing Date Title
KR1020150079882A KR102019712B1 (en) 2015-06-05 2015-06-05 Zig and apparatus for measuring inserting and removing of snap-fit assembly comprising the same

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KR20160143331A KR20160143331A (en) 2016-12-14
KR102019712B1 true KR102019712B1 (en) 2019-11-04

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102094702B1 (en) * 2019-11-25 2020-03-30 신창호 Pressure input and release force measuring device for press-fitted parts

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3114796U (en) * 2005-05-31 2005-10-27 株式会社島津製作所 Specimen gripping device
KR200408958Y1 (en) 2005-11-25 2006-02-15 경신공업 주식회사 a bottom jig of a tester
CN102980704B (en) * 2012-12-10 2014-12-10 深圳市宏之都科技有限公司 Insertion and extraction force testing device

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR200214610Y1 (en) * 1999-01-20 2001-02-15 장기철 Vise for machine tools
KR100904224B1 (en) * 2007-07-12 2009-06-24 (주)티에이치엔 A vise apparatus

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3114796U (en) * 2005-05-31 2005-10-27 株式会社島津製作所 Specimen gripping device
KR200408958Y1 (en) 2005-11-25 2006-02-15 경신공업 주식회사 a bottom jig of a tester
CN102980704B (en) * 2012-12-10 2014-12-10 深圳市宏之都科技有限公司 Insertion and extraction force testing device

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
Elliot Scientific Catalogue, [online], 2009년, https://www.elliotscientific.com/image/data/pdf/EMCatalogue.pdf*

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102094702B1 (en) * 2019-11-25 2020-03-30 신창호 Pressure input and release force measuring device for press-fitted parts

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