KR101629355B1 - Press apparatus for pemnut - Google Patents

Press apparatus for pemnut Download PDF

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Publication number
KR101629355B1
KR101629355B1 KR1020150054056A KR20150054056A KR101629355B1 KR 101629355 B1 KR101629355 B1 KR 101629355B1 KR 1020150054056 A KR1020150054056 A KR 1020150054056A KR 20150054056 A KR20150054056 A KR 20150054056A KR 101629355 B1 KR101629355 B1 KR 101629355B1
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KR
South Korea
Prior art keywords
support
groove
position adjusting
nut
pam
Prior art date
Application number
KR1020150054056A
Other languages
Korean (ko)
Inventor
김철연
Original Assignee
김철연
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 김철연 filed Critical 김철연
Priority to KR1020150054056A priority Critical patent/KR101629355B1/en
Application granted granted Critical
Publication of KR101629355B1 publication Critical patent/KR101629355B1/en

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B37/00—Nuts or like thread-engaging members
    • F16B37/04—Devices for fastening nuts to surfaces, e.g. sheets, plates
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
    • B21J15/00—Riveting
    • B21J15/10—Riveting machines
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
    • B21J15/00—Riveting
    • B21J15/10—Riveting machines
    • B21J15/30—Particular elements, e.g. supports; Suspension equipment specially adapted for portable riveters
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B15/00—Details of, or accessories for, presses; Auxiliary measures in connection with pressing
    • B30B15/02—Dies; Inserts therefor; Mounting thereof; Moulds
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B37/00—Nuts or like thread-engaging members
    • F16B37/04—Devices for fastening nuts to surfaces, e.g. sheets, plates
    • F16B37/06—Devices for fastening nuts to surfaces, e.g. sheets, plates by means of welding or riveting
    • F16B37/062—Devices for fastening nuts to surfaces, e.g. sheets, plates by means of welding or riveting by means of riveting
    • F16B37/065—Devices for fastening nuts to surfaces, e.g. sheets, plates by means of welding or riveting by means of riveting by deforming the material of the nut
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K7/00—Constructional details common to different types of electric apparatus
    • H05K7/14—Mounting supporting structure in casing or on frame or rack
    • H05K7/1401—Mounting supporting structure in casing or on frame or rack comprising clamping or extracting means
    • H05K7/1402—Mounting supporting structure in casing or on frame or rack comprising clamping or extracting means for securing or extracting printed circuit boards

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Presses And Accessory Devices Thereof (AREA)

Abstract

The present invention relates to a pem nut compression device. The pem nut compression device is configured to control a number of lower supports compressing the pem nut; and a compressing position to correspond to the pem nut through the pem nut in accordance with the number of pem nuts coupled to a case and a coupling position of the pem nut. As such, the pem nut compression device is able to perform a compressing work while being entirely compatible with a case where the pem nut is coupled in various positions and in different numbers. Moreover, the pem nut compression device is configured to simultaneously compress and fixate the pem nuts to the case.

Description

[0001] PRESS APPARATUS FOR PEMNUT [0002]

The present invention relates to a Pam nut pressing apparatus, and more particularly, to a Pam nut pressing apparatus which comprises a number of lower supports for squeezing a Pam nut through a position adjusting means, The present invention relates to a Pam nut pressing apparatus configured to be capable of correspondingly adjusting a plurality of Pam nuts simultaneously in a case.

2. Description of the Related Art Generally, in order to facilitate and assemble a board (PCB) in a case of various electric and electronic devices, a through hole into which a pam nut can be inserted is formed in a case of an electric or electronic device, Thereby being fixed by pressing.

In addition, a plurality of the Pam nuts are pressed and fixed according to the size, characteristics, and use of the substrate to be coupled to the case, and a plurality of Pam nuts are pressed and fixed to the correct positions at an accurate depth, .

In order to press and fix the Pam nut on the case, the Pam nut is first inserted into one of the through holes formed in the case. Then, the part where the Pam nut is inserted is seated on the seat of the Pam nut pressing apparatus, The presser bar, which is installed on the upper side of the seating table and descended by the cylinder, is lowered to press the Pam nuts fitted in the case, thereby fixing the Pam nuts to the case.

However, conventionally, in order to press-fit the Pam nuts into the case, one Pam nut is inserted into a plurality of through holes formed in the case, and then the Pam nuts inserted into the through holes are sequentially pressed one by one through a compression device, And fixing was performed. Therefore, the conventional technique requires a long time to connect the Pam nuts to the case, which causes a problem of productivity deterioration and inevitably causes a cost increase factor.

In addition, since the conventional technique has a problem that the Pam nuts are seated and fixed in the case sequentially with a time difference, a pressure difference or a pressurizing position difference may occur between the pressed Parmnut and the pressed Parmnut later, It is difficult to install the Pam nuts having a uniform height and uprightness, and there is a problem in that a failure occurs in the process of sequentially pressing and fixing a plurality of Pam nuts to the case.

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 a Pam nut, a method of manufacturing the same, So that a plurality of Pam nuts can be pressed and fixed to the case at the same time.

According to the present invention, there is provided a Pam nut pressing apparatus for pressing a Pam nut inserted in a through hole of a case into a case and connecting the same to a case, the Pam nut pressing apparatus comprising a support plate having a slide groove formed on an upper surface thereof, A plurality of position adjusting means configured to fix one end portion on the slide groove when one end portion moves and rotates in the slide groove and the other end portion corresponds to the pressed portion of the Pam nut, An upper presser plate coupled to an upper side of the other end of the adjusting means to press the upper surface of the Pam nut that is vertically moved through the elevating means coupled to the upper surface and seated on the lower supporter, The present invention is achieved by providing a Pam nut compression apparatus characterized by comprising

Here, the slide groove may be formed in a rail groove and an upper portion of the rail groove in a longitudinal direction, and the guide groove may be formed at a center thereof with a pair of locking protrusions facing each other, A fixing bolt which is received in the rail groove and moves along the rail groove and in which a male screw portion is protruded through the guide slit; and a fixing bolt having a predetermined length, A positioning arm formed rotatably on the fixing bolt and formed with a receiving groove for receiving a lower end of the lower supporting rod in an upper surface thereof and receiving the positioning hole; And a lower end of the lower support is engaged with the lower end of the lower support, It is fastened to preferably comprise a lock nut to secure the pressure the positioning arm to a portion on the slide groove.

One end of the positioning arm is moved on the male screw portion of the fixing bolt so that the position of the lower supporting arm coupled to the other end of the positioning arm can be adjusted. .

The left and right slide grooves and the front and rear slide grooves are formed on the upper surface of the base plate and the left and right slide grooves are formed on the upper surface of the base plate, In the form of a lattice.

The lower support pedestal includes a support body having a support surface on an upper surface thereof and having a hollow interior, the support body forming a Pam nut receiving groove in which the Pam nut is received in the center of the support surface, And a lower portion of the head portion is inserted into the support body and vertically assembled along the central axis of the support body. The head portion is installed on the bottom surface of the head portion, And a support for supporting the lower surface of the support spring.

A plurality of position adjusting means formed on the pedestal are coupled to the slide grooves and moved and rotated along the slide grooves to press the Pam nuts according to the number of the Pam nuts joined to the case and the engaging positions, The number of the lower supports and the position of the compression. Therefore, the present invention can adjust the position of the lower support through the position adjusting means, and can perform the pressing operation by being compatible with the cases where the Pam nuts are combined at various positions and different numbers, have.

1 is a perspective view of a Pam nut pressing apparatus according to the present invention,
2 is an exploded perspective view of the slide groove and the position adjusting means in the Pam nut pressing apparatus according to the present invention,
FIG. 3 is a perspective view of FIG. 2,
4 is a cross-sectional view of Fig. 3,
5 to 11 are views for explaining the operation of the Pam nut pressing apparatus according to the present invention.

Hereinafter, a pam nut pressing apparatus according to the present invention will be described in detail with reference to the accompanying drawings.

The present invention provides a pressing apparatus for pressing a plurality of pummuts P sandwiched in a through hole 11 of a case 10 at the same time to be coupled to a case 10. The pressing apparatus includes a receiving plate 100, An adjusting unit 200, a lower support 300, and an upper compression plate 400.

The support plate 100 is a die on which the position adjusting means 200 is installed and is configured so that the position adjusting means 200 can be installed between the support plate 100 and the upper press plate 400. Here, a slide groove 110 is formed on the upper surface of the pedestal 100. That is, one end of the position adjusting means 200, which will be described later, is coupled to the slide groove 110 to move along the slide groove 110 or rotate on the slide groove 110, As shown in FIG.

The position adjusting means 200 includes a plurality of position adjusting means 200 and one end portion of the position adjusting means 200 is rotatably fitted in the slide groove 110 of the receiving plate 100 to be movable along the slide groove 110. When one end of the position adjusting means 200 moves and rotates in the slide groove 110 and the other end thereof is located corresponding to the pressed portion of the Pam nut P, the one end of the position adjusting means 200 is placed on the slide groove 110 Respectively. That is, the position adjusting means 200 moves and rotates the one end portion on the slide groove 110 and moves the lower support member 300, which will be described later, coupled to the other end portion to the Pam nut P coupled to the case 10 So as to be positioned correspondingly.

One end of the position adjusting means 200 is engaged with the slide groove 110 formed in the receiving plate 100 and is freely moved and rotated so that the lower position of the lower supporting plate 300 can be freely adjusted.

Specifically, the slide groove 110 is formed along the longitudinal direction at the upper portion of the rail groove 111 and the rail groove 111, and a pair of guide slits 112 are formed at the center, And a latching jaw 113.

The position adjusting means 200 is configured such that the head portion 211 is received in the rail groove 111 and moved along the rail groove 111 and the male screw portion 212 passes through the guide slit And a fixing bolt 210 which is provided to be fixed. The position adjusting means 200 is provided with a predetermined length and has an engaging hole 221 formed at one end thereof to be engaged with the male screw portion 212 of the fixing bolt so as to be rotatable with respect to the fixing bolt 210 And a receiving groove 222 in which the lower end of the lower support 300 is inserted and received is formed on the upper surface of the other end. The position adjusting means 200 is formed with a fastening bar 230 protruding upward from the receiving groove 222 of the position adjusting arm and having a male screw thread formed on the outer surface thereof and a lower end of the lower supporting arm being fastened to each other. That is, a female screw portion 301 formed at the lower end of the lower support table 300 is fastened to the fastening rod 230 so that the lower support table 300 received in the receiving groove 222 is firmly coupled to the fastening rod 230 . The position adjusting means 200 includes a fixing nut 240 fastened to the male screw portion 212 of the fixing bolt and press-fixing the position adjusting arm 220 to a part of the slide groove 110, do.

That is, the position adjusting means 200 is configured such that the head portion 211 of the fixing bolt is moved along the rail groove 111, and the position adjusting arm, which has one end engaged with the male screw portion 212 of the fixing bolt, (220) moves along the fixing bolt (210) in the rail groove (111) or rotatable on the male screw portion (212). Accordingly, the position of the lower support 300 coupled to the other end of the positioning arm 220 can be freely adjusted so as to correspond to the Pam nut P. [ When the position of the position adjusting arm 220 is adjusted, when the fixing nut 240 is fastened to the screw portion 212 of the fixing bolt, the head 211 of the fixing bolt and the bottom surface of the position adjusting arm 220 The positioning arm 220 is firmly fixed in a part of the slide groove 110 while pressing the latching jaw 113. [

Here, it is preferable that the coupling hole 221 of the positioning arm is formed as a long hole in the longitudinal direction. That is, when the engaging hole 221 of the position adjusting arm is formed as a long hole, one end of the position adjusting arm 220 fitted to the male screw portion 212 of the fixing bolt is configured to be movable on the male screw portion 212. Therefore, the length of the position adjusting arm 220 can be adjusted. Therefore, the length of the position adjusting arm 220 can be adjusted according to the length of the position adjusting arm 220, So that the position can be adjusted. Of course, a plurality of the positioning arms 220 may be provided to have various lengths, and a position adjusting arm 220 having a size corresponding to the position of the punching operation of the pneumatic nut P may be applied to the other end of the positioning arm 220 The position of the combined lower support 300 can be adjusted.

The slide groove 110 includes left and right slide grooves 110-1 formed on the upper surface of the support plate 100 in the left and right direction and front and rear slide grooves 110- 2). That is, the position adjusting means 200 is configured to be able to move and rotate along the left and right slide grooves 110-1 and the front and rear slide grooves 110-2, so that the position adjusting means 200, To be installed. Furthermore, the left and right slide grooves 110-1 and the front and rear slide grooves 110-2 are preferably arranged in a lattice shape on the upper surface of the support plate 100. [ That is, when the left and right slide grooves 110-1 and the front and rear slide grooves 110-2 are formed in a lattice shape on the support plate 110, the position adjusting means 200 installed in the slide grooves 110 can move the pawls P In the present embodiment. The left and right slide grooves 110-1 are formed adjacent to the left and right edges of the pedestal 100 and the front and rear slide grooves 110-2 are adjacent to the front and rear edges of the pedestal 100, And is formed in a lattice shape on the pedestal 100. Of course, the left and right slide grooves 110-1 and the front and rear slide grooves 110-2 may be provided in a plurality of positions so that a plurality of grids are formed on the upper surface of the pedestal 100. [

The lower support 300 is coupled to the upper end of the other end of the position adjusting means 200 so that the bottom of the Pam nut P is seated and supported. That is, when pushing the Pam nut P inserted into the case 10 through the upper press plate 400 described below, the lower support 300 presses and fixes the Pam nut P to the case 10 To support the bottom of the Pam nut (P).

Specifically, the lower support 300 has a support surface 311 on its upper surface and a hollow 312 formed therein. The lower support 300 has a smaller size than the diameter of the hollow 312 at the center of the support surface, The upper part of the main body 310 is inserted into the Pam nut receiving groove 313 and the lower part of the Pam nut is inserted into the main body 310 of the support body 310, Stage head 320 that is vertically assembled along the central axis of the head 310 and a support 320 that is installed on the bottom surface of the head 320 and operates to allow the head 320 to move up and down A spring 330, and a support 340 for supporting the lower surface of the support spring 330. That is, the lower support 300 is configured such that the lower end of the Pam nut P is accommodated in the Pam nut accommodating groove 313 and is vertically mounted on the support body 310, The head unit 320 can be guided when the head 320 is vertically moved inside the support body 310. [ Therefore, in order to press the Pam nut P inserted into the through hole 11 of the case, the lower end of the Pam nut P is seated in the Pam nut receiving groove 313, The support surface 311 of the support body comes into contact with the bottom surface of the case 10 and then the lower presser plate 400 is moved downward, The head 320 can be pressed while compressing the supporting spring 330 by pressing the pressing member P so that the pressing operation can be performed so that the Pam nut P is fixed to the case 10. [ When the pressing operation is completed and then moved to the upper side of the upper press plate 400, the support spring 330 is stretched to elastically move the head portion 320 upward, and at the same time, P is upwardly pushed out of the Pam nut receiving groove 313.

The upper press plate 400 is configured to press the upper surface of the Pam nut P that is seated on the lower support 300 while moving up and down through the elevating means 410 coupled to the upper surface. That is, the upper presser plate 400 presses the upper surface of the Pam nut P supported by the lower support table 300 while descending by the elevating means 410 and presses the Pam nut P on the case 10 . Here, various means known in the art may be used as the elevating means 410 for elevating the upper press plate 400, but it is preferable that the elevating means 410 is composed of a cylinder operated by pneumatic or hydraulic pressure.

Hereinafter, the operation and effect / effect of the Pam nut pressing apparatus according to the present invention will be described with reference to FIGS. 5 to 11. FIG.

5, a plurality of position adjusting means 200 may be mounted on the slide groove 110 of the pedestal 100 in such a manner that the lower pedestal 300 is positioned . That is, the head 211 of the fixing bolt is moved along the rail groove 111 and the position adjusting arm 220, which is engaged with one end of the fixing bolt 212, So that the lower support 300 coupled to the other end of the positioning arm 220 is positioned to correspond to the Pam nut P. [

6, after adjusting the position of the position adjusting arm 220, the fixing nut 240 is fastened to the male screw portion 212 of the fixing bolt, The bottom surface of the positioning arm 220 presses the engaging jaw 113 to firmly fix the positioning arm 220 in a part of the slide groove 110. [

As shown in FIG. 7, a case in which the Pam nut is fitted in the through hole of the case is seated so that the bottom surface of the Pam nut is in close contact with the supporting surface of the lower support.

8, when the upper presser plate 400 is lowered by the descent of the elevating means, the bottom surface of the upper presser plate comes into contact with the upper surface of the case and starts to press the case.

9, when the upper compression plate 400 is lowered, the head portion 320 is pressed against the support spring 330 by the pressure of the Pam nut P accommodated in the Pam nut receiving groove 313, So that the Pam nuts P are fixed to the case 10.

10, when the pressing operation is completed and then moved to the upper side of the upper press plate 400, the support spring 330 is stretched to elastically move the head portion 320 upwardly The head part 320 pushes the Pam nut P upward and discharges it from the Pam nut receiving groove 313. [

Then, as shown in FIG. 11, a plurality of Pam nuts are simultaneously coupled to the case.

As described above, in the Pam nut pressing apparatus according to the present invention, the plurality of position adjusting means formed on the pedestal are coupled to the slide grooves and moved and rotated along the slide grooves, so that the number of the Pam nuts, The number of the lower supports for pressing the nuts and the position of the compression can be adjusted.

Therefore, the present invention is advantageous in that manufacturing efficiency is significantly improved since the position of the lower support is adjusted through the position adjusting means, so that the Pam nuts can be operated in all cases compatible with various positions and in different cases have.

In addition, since the present invention adjusts the position of the lower support through the position adjusting means, and is capable of simultaneously pressing a plurality of pummnuts on the case and being coupled to the case with the same pressing force, productivity is improved, The Pam nuts are installed with uniform height and uprightness, so that there is an advantage that a casing having excellent quality can be manufactured.

10: Case P: Parmnut
100: Support plate 200: Position adjusting means
300: Lower support 300: Upper squeeze plate

Claims (5)

1. A Pam nut pressing apparatus for pressing a Pam nut inserted in a through hole of a case into a case,
A base plate having an upper surface formed with a slide groove,
And one end portion is rotatably fitted in the slide groove and is movable along the slide groove. When one end portion moves and rotates in the slide groove and the other end portion is located corresponding to the pressed portion of the Pam nut, A plurality of position adjusting means configured to be fixed to the positioning member,
A lower support unit coupled to the upper end of the other end of the position adjusting unit to support the bottom of the Pam nut,
And an upper pressing plate which presses the upper surface of the Pam nut that is vertically moved through the elevating means coupled to the upper surface and seated on the lower supporting table.
The method according to claim 1,
Wherein the slide groove comprises a rail groove and a pair of engagement protrusions formed along the longitudinal direction at an upper portion of the rail groove and having guide slits formed at the center thereof so as to face each other,
Wherein the position adjusting means comprises a fixing bolt configured such that a head portion is accommodated in the rail groove and moved along the rail groove and a male screw portion is protruded through the guide slit,
Wherein a coupling hole is formed at one end of the fixing bolt to be engaged with a male screw portion of the fixing bolt and is rotatably coupled to the fixing bolt and a receiving groove is formed in the upper surface of the other end to receive the lower end of the lower supporting rod A positioning arm,
A fixing rod protruding upward from the receiving groove of the positioning arm and having a male screw thread formed on the outer surface thereof and a lower end of the lower supporting arm being fastened and coupled;
And a fixing nut fastened to the male screw portion of the fixing bolt to press-fix the position adjusting arm to a portion of the slide groove.
3. The method of claim 2,
The positioning hole of the position adjusting arm is formed as a long hole in the longitudinal direction so that one end of the positioning arm can be moved on the male screw portion of the fixing bolt so that the position of the lower supporting arm coupled to the other end of the positioning arm can be adjusted. To-face relationship.
The method according to claim 1,
Wherein the slide groove comprises left and right slide grooves formed in a left-right direction on an upper surface of the receiving plate, and front and rear slide grooves formed in a front-rear direction on an upper surface of the receiving plate,
Wherein the left and right slide grooves and the front and rear slide grooves are arranged in a lattice shape on the upper surface of the receiving plate.
The method according to claim 1,
Wherein the lower support comprises:
A support body having a support surface on an upper surface thereof and having a hollow inside and formed with a size smaller than the diameter of the hollow at the center of the support surface and having a Pam nut receiving groove in which the Pam nut is received,
A head portion having a two-stage structure in which an upper side is inserted into the Pam nut receiving groove and a lower side is inserted into the support main body and vertically assembled along the central axis of the support main body,
A support spring installed on a bottom surface of the head portion to operate the head portion to allow the head portion to vertically flow,
And a support for supporting the lower surface of the support spring.
KR1020150054056A 2015-04-16 2015-04-16 Press apparatus for pemnut KR101629355B1 (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101793557B1 (en) * 2016-07-19 2017-11-03 정연재 Device for combining of clutch
CN110774199A (en) * 2019-12-02 2020-02-11 中信戴卡股份有限公司 Aluminum alloy wheel sample block fixing clamp

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR200373885Y1 (en) * 2004-10-11 2005-01-27 주식회사 우성티오티 the inserting and inspecting device of pem nut
KR200388483Y1 (en) * 2005-03-29 2005-06-30 장운승 Guide pin for position fixing of sheet
KR20120019757A (en) * 2010-08-26 2012-03-07 김도완 An insert nuts position adjustment device of electronic goods case
KR101129874B1 (en) * 2009-05-26 2012-03-23 현대제철 주식회사 jig for spot welding test piece

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR200373885Y1 (en) * 2004-10-11 2005-01-27 주식회사 우성티오티 the inserting and inspecting device of pem nut
KR200388483Y1 (en) * 2005-03-29 2005-06-30 장운승 Guide pin for position fixing of sheet
KR101129874B1 (en) * 2009-05-26 2012-03-23 현대제철 주식회사 jig for spot welding test piece
KR20120019757A (en) * 2010-08-26 2012-03-07 김도완 An insert nuts position adjustment device of electronic goods case

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101793557B1 (en) * 2016-07-19 2017-11-03 정연재 Device for combining of clutch
CN110774199A (en) * 2019-12-02 2020-02-11 中信戴卡股份有限公司 Aluminum alloy wheel sample block fixing clamp

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