CN103978348A - Processing method and structure of left base plate of computer displayer back plate - Google Patents
Processing method and structure of left base plate of computer displayer back plate Download PDFInfo
- Publication number
- CN103978348A CN103978348A CN201410230023.1A CN201410230023A CN103978348A CN 103978348 A CN103978348 A CN 103978348A CN 201410230023 A CN201410230023 A CN 201410230023A CN 103978348 A CN103978348 A CN 103978348A
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- hole
- side substrate
- convex
- thickness
- base plate
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- 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
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
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Abstract
The invention discloses a processing method and a structure of a left base plate of a computer displayer back plate. The processing method of the left base plate of the computer displayer back plate includes shaping the left base plate through stamping, and is characterized in that when the left base plate is shaped through the stamping, a fabrication hole is firstly formed in a portion of the left base plate, where a rivet hole is to be formed, second stamping of the fabrication hole is chambering convex extension stamping which is performed by expanding and extending a hole mouth in the left base plate downwards so as to form a convex sleeve while the fabrication hole is being enlarged, an inner circle of the convex sleeve is a stepped hole which becomes larger from the inside out, and after the fabrication hole is enlarged, the diameter of an inner stepped hole is equal to the diameter of the rivet hole to be formed, the diameter of an outer stepped hole is equal to the diameter of an outer circle at the major diameter end of a corresponding screw hole seat or a corresponding locating pillar, the thickness of the convex sleeve is equal to the thickness of the left base plate, the axial depth of the outer stepped hole is one half of the thickness of the left base plate, and the axial length increasing amount of a pillar to be riveted on the screw hole seat or the locating pillar when the screw hole seat or the locating pillar is lathed is one half of the thickness of the left base plate, and furthermore riveting fixation is performed after the pillar to be riveted on the screw hole seat or the locating pillar is inserted into the stepped hole of the convex sleeve of the left base plate and is stretched out of the left base plate. The sleeve length of the pillar to be riveted and the rivet hole to be formed is larger than the thickness of the left base plate, and a thread pillar and the locating pillar can be firmly fixed in submergence mode through the stepped holes.
Description
Technical field
The present invention relates to the production technology of computer components, particularly processing method and the structure thereof of a kind of computer monitor backboard left side substrate.
Background technology
Computer monitor is assembled by front frame, bonnet, display, main circuit board, subelement circuit board, electronic devices and components.Backboard is comprised of circuit framework, infrabasal plate, left and right sides substrate.Circuit framework be opening towards the box-shaped frame of display tool back plane, box-shaped frame opening four along aspect-oriented respectively disjunctor extend and a rectangular strip limit, lower rectangular strip limit is fixedly connected with infrabasal plate.Rectangular strip limit, both sides is fixedly connected with left and right sides substrate respectively, and infrabasal plate is horizontal rectangular slab, and left and right sides substrate is longitudinal rectangular slab.Infrabasal plate, left and right sides substrate frontal plane require at grade.Backboard is fixed on the display plate back side for laminating after fixing various circuit boards and electronic devices and components.
The rivet hole riveted for the treatment of being provided with in rectangular boss, rectangular boss on the substrate of left side is fixed with two screw seats, a locating dowel, and rectangular boss is that punch forming forms, and screw seat, locating dowel are that the left side substrate rectangular boss plate of riveted after punching press treated on rivet hole.Left side substrate, rectangular boss plate thickness of slab are 0.4-0.5mm, screw seat cylindrical is step column, and step post bigger diameter end end face is provided with tapped blind hole, and miner diameter end cylindrical external diameter is equal to or less than left side substrate and treats rivet hole internal diameter, miner diameter end axial length is greater than treats rivet hole thickness, and miner diameter end is as treating riveting post.Locating dowel is two-way Step Shaft shape, and bottom miner diameter end Step Shaft is as treating riveting post, screw seat treat riveting post and locating dowel to treat that riveting post is generally isometrical, the large footpath of screw seat stand rank post bigger diameter end external diameter and locating dowel middle part section external diameter is generally isometrical.By the entering until rivet hole and after stretching out side group plate and carry out riveted with punch press drift until riveting column sleeve of screw seat or locating dowel, during riveted, treat that rivet hole must be depressed to squeeze and micro-reaming, treat that riveting post must have the countersunk head thickness of hole enlargement, countersunk head outerplanar is concordant with side group plate frontal plane.The too thin countersunk head of countersunk head edge load is poor, and countersunk head is too thick, and side group plate is too thin along thickness of slab corresponding to the hole in countersunk head orientation, treats riveting post and treats that the length of rivet hole fit is too short, and side group plate load is too poor.No matter be that countersunk head load is poor or side group plate hole is poor along load, be all embodied in screw seat, locating dowel stationary state built on the sand.And thickness of slab ability 0.4-0.5mm, General Requirements countersunk head sinking thickness will reach 0.3-0.4mm left and right, treat that riveting post only has 0.1-0.2 mm with treating the length of rivet hole fit, cohesive force is too little, cannot guarantee fastness and stability that threaded column is fixing, the too short screw of axial length obvolvent seat, locating dowel axial line precision also cannot guarantee.Side group plate thickness of slab strengthens cost and significantly improves.
Summary of the invention
The object of the invention is to overcome above-mentioned defect, processing method and the structure thereof of a kind of computer monitor backboard left side substrate is provided.
The scheme of processing method of the present invention is: comprise left side molding substrate punching press, it is characterized in that: during the molding substrate punching press of left side, treat the first punching fabrication hole in rivet hole orientation, fabrication hole internal diameter is less than treats rivet hole internal diameter, the punching of fabrication hole secondary is that protruding punching is prolonged in reaming, in the time of to fabrication hole reaming, make substrate aperture, left side also expand and prolong a convex-dished sleeve downwards, convex-dished sleeve inner circle is the stepped hole that outer imperial palace is little, after reaming in stepped hole with treat that rivet hole is isometrical, outer stepped hole is isometrical with the corresponding large footpath of screw seat stand rank post bigger diameter end external diameter or locating dowel middle part section cylindrical, convex-dished sleeve cylindrical external diameter is greater than the large footpath of corresponding screw seat stand rank post bigger diameter end external diameter or locating dowel middle part section cylindrical external diameter, the outstanding thickness of convex-dished sleeve equals left side substrate thickness, outer stepped hole axial depth equals half of left side substrate thickness, when screw seat, locating dowel car are processed, treat that riveting post axial length adds half that equals in a large number left side substrate thickness, but screw seat, locating dowel total length are constant, the carrying out riveted fix after riveting post be inserted in respectively convex-dished sleeve stepped hole corresponding to left side substrate and stretch out left side substrate of screw seat, locating dowel.
Organization plan of the present invention is: comprise the rectangular boss on the substrate of left side, screw seat, locating dowel, it is characterized in that: left side substrate treat the rivet hole disjunctor convex-dished sleeve that extends that makes progress, convex-dished sleeve inner circle is the stepped hole that outer imperial palace is little, after reaming in stepped hole with treat that rivet hole is isometrical, the large footpath of outer stepped hole and screw seat stand rank post bigger diameter end external diameter or locating dowel middle part section cylindrical is isometrical, , convex-dished sleeve cylindrical external diameter is greater than the large footpath of corresponding screw seat stand rank post bigger diameter end external diameter or locating dowel middle part section cylindrical external diameter, the outstanding thickness of convex-dished sleeve equals left side substrate thickness, outer stepped hole axial depth equals half of left side substrate thickness, when screw seat, locating dowel car are processed, treat that riveting post axial length adds half that equals in a large number left side substrate thickness, but screw seat, locating dowel total length are constant, the riveted after riveting post is inserted in respectively the convex-dished sleeve stepped hole that left side substrate is corresponding and stretches out left side substrate of screw seat, locating dowel is fixed.
The invention has the advantages that: treat rivet hole disjunctor extension convex-dished sleeve, after riveted, treat that riveting post has certain fit to be connected wall thickness with treating rivet hole, treat riveting post and treat that the length of rivet hole fit is greater than side group plate thickness, and the laminating of convex-dished sleeve stepped hole sunk makes threaded column, locating dowel fix more firm.
Accompanying drawing explanation
Fig. 1 is back board structure schematic diagram.
Fig. 2 is the A-A cutaway view of Fig. 1.
When Fig. 3 is the punching of fabrication hole secondary, male structure schematic diagram is prolonged in counterdie and the reaming of side group plate.
Fig. 4 is structural representation of the present invention.
The specific embodiment
Processing method of the present invention is: comprise left side substrate 1 moulding punching press, it is characterized in that: during the 1 moulding punching press of left side substrate, treat the first punching fabrication hole in rivet hole orientation, fabrication hole internal diameter is less than treats rivet hole internal diameter, the punching of fabrication hole secondary is that protruding punching is prolonged in reaming, in the time of to fabrication hole reaming, make substrate 1 aperture, left side also expand and prolong a convex-dished sleeve downwards, convex-dished sleeve inner circle is the stepped hole that outer imperial palace is little, after reaming in stepped hole with treat that rivet hole is isometrical, outer stepped hole is isometrical with corresponding screw seat 2 step post bigger diameter end external diameters or locating dowel 3 large footpath, middle part section cylindricals, convex-dished sleeve cylindrical external diameter is greater than corresponding screw seat 2 step post bigger diameter end external diameters or locating dowel 3 large footpath, middle part section cylindrical external diameters, the outstanding thickness of convex-dished sleeve equals left side substrate 1 thickness, outer stepped hole axial depth equals half of left side substrate 1 thickness, screw seat 2, locating dowel 3 cars treat that riveting post axial length adds half that equals in a large number left side substrate 1 thickness when processed, but screw seat 2, locating dowel 3 total lengths are constant, the carrying out riveted fix after riveting post be inserted in respectively the convex-dished sleeve stepped hole of left side substrate 1 correspondence and stretch out left side substrate 1 of screw seat 2, locating dowel 3.
Structure of the present invention is: comprise the rectangular boss on the substrate 1 of left side, screw seat 2, locating dowel 3, it is characterized in that: left side substrate 1 treat the rivet hole disjunctor convex-dished sleeve that extends that makes progress, convex-dished sleeve inner circle is the stepped hole that outer imperial palace is little, after reaming in stepped hole with treat that rivet hole is isometrical, outer stepped hole is isometrical with corresponding screw seat 2 step post bigger diameter end external diameters or locating dowel 3 large footpath, middle part section cylindricals, convex-dished sleeve cylindrical external diameter is greater than corresponding screw seat 2 step post bigger diameter end external diameters or locating dowel 3 large footpath, middle part section cylindrical external diameters, the outstanding thickness of convex-dished sleeve equals left side substrate 1 thickness, outer stepped hole axial depth equals half of left side substrate 1 thickness, screw seat 2, locating dowel 3 cars treat that riveting post axial length adds half that equals in a large number left side substrate 1 thickness when processed, but screw seat 2, locating dowel 3 total lengths are constant, the riveted after riveting post is inserted in respectively the convex-dished sleeve stepped hole of left side substrate 1 correspondence and stretches out left side substrate 1 of screw seat 2, locating dowel 3 is fixed.
When first punching fabrication hole is secondary punching, fabrication hole hole is beneficial to protruding do expansion guiding under hole enlargement along not ftractureing, and fabrication hole can only prolong demand wall thickness volume for evagination extension provides to expand by path.During secondary punching, will there be counterdie 4 fabrication hole below, and lower mold cavity chamber wall is shaped as convex-dished sleeve gabarit shape, and the annulus seam that at the bottom of chamber, center projections half is high is walked by, stepped hole from annulus stop portion is extruded for upper punch; Upper punch cylindrical external diameter equals to treat rivet hole external diameter, and upper punch head can first be inserted in fabrication hole guiding.On convex-dished sleeve cylindrical, having round lead angle is beneficial to wall thickness punching and expands and to prolong transition.
Disjunctor convex-dished sleeve has strengthened left side substrate 1 and has treated thickness and the external space of riveting position, has guaranteed that screw seat 2, locating dowel 3 are greater than left side substrate 1 thickness with the length of left side substrate 1 after rivet hole fit, have also expanded the wall thickness of bearing capacity demand, so riveted is firm.Can also strengthen on a small quantity countersunk head thickness, enlarged portion riveted power, screw seat 2, locating dowel 3 are still greater than left side substrate 1 thickness with the length of left side substrate 1 after rivet hole fit.
Claims (2)
1. a processing method for computer monitor backboard left side substrate, comprises left side substrate (1) moulding punching press, it is characterized in that: during left side substrate (1) moulding punching press, treat the first punching fabrication hole in rivet hole orientation, fabrication hole internal diameter is less than treats rivet hole internal diameter, the punching of fabrication hole secondary is that protruding punching is prolonged in reaming, in the time of to fabrication hole reaming, make substrate (1) aperture, left side also expand and prolong a convex-dished sleeve downwards, convex-dished sleeve inner circle is the stepped hole that outer imperial palace is little, after reaming in stepped hole with treat that rivet hole is isometrical, outer stepped hole is isometrical with the corresponding large footpath of screw seat (2) step post bigger diameter end external diameter or locating dowel (3) middle part section cylindrical, convex-dished sleeve cylindrical external diameter is greater than the large footpath of corresponding screw seat (2) step post bigger diameter end external diameter or locating dowel (3) middle part section cylindrical external diameter, the outstanding thickness of convex-dished sleeve equals left side substrate (1) thickness, outer stepped hole axial depth equals half of left side substrate (1) thickness, when screw seat (2), locating dowel (3) car are processed, treat that riveting post axial length adds half that equals in a large number left side substrate (1) thickness, but screw seat (2), locating dowel (3) total length are constant, the carrying out riveted fix after riveting post be inserted in respectively the convex-dished sleeve stepped hole that left side substrate (1) is corresponding and stretch out left side substrate (1) of screw seat (2), locating dowel (3).
2. the structure of computer monitor backboard left side substrate, comprise the rectangular boss on left side substrate (1), screw seat (2), locating dowel (3), it is characterized in that: left side substrate (1) treat the rivet hole disjunctor convex-dished sleeve that extends that makes progress, convex-dished sleeve inner circle is the stepped hole that outer imperial palace is little, after reaming in stepped hole with treat that rivet hole is isometrical, outer stepped hole is isometrical with the corresponding large footpath of screw seat (2) step post bigger diameter end external diameter or locating dowel (3) middle part section cylindrical, convex-dished sleeve cylindrical external diameter is greater than the large footpath of corresponding screw seat (2) step post bigger diameter end external diameter or locating dowel (3) middle part section cylindrical external diameter, the outstanding thickness of convex-dished sleeve equals left side substrate (1) thickness, outer stepped hole axial depth equals half of left side substrate (1) thickness, when screw seat (2), locating dowel (3) car are processed, treat that riveting post axial length adds half that equals in a large number left side substrate (1) thickness, but screw seat (2), locating dowel (3) total length are constant, the riveted after riveting post is inserted in respectively the convex-dished sleeve stepped hole that left side substrate (1) is corresponding and stretches out left side substrate (1) of screw seat (2), locating dowel (3) is fixed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410230023.1A CN103978348A (en) | 2014-05-28 | 2014-05-28 | Processing method and structure of left base plate of computer displayer back plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410230023.1A CN103978348A (en) | 2014-05-28 | 2014-05-28 | Processing method and structure of left base plate of computer displayer back plate |
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| Publication Number | Publication Date |
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| CN103978348A true CN103978348A (en) | 2014-08-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410230023.1A Pending CN103978348A (en) | 2014-05-28 | 2014-05-28 | Processing method and structure of left base plate of computer displayer back plate |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105382087A (en) * | 2015-12-02 | 2016-03-09 | 昆山乙盛机械工业有限公司 | Molding process of backboard made from aluminum-plastic board |
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| WO2002019425A1 (en) * | 2000-08-29 | 2002-03-07 | Orga Kartensysteme Gmbh | Method for production of a support element for an ic component |
| JP2003142633A (en) * | 2001-10-31 | 2003-05-16 | Kyocera Corp | Method of manufacturing wiring board |
| CN2558080Y (en) * | 2002-06-04 | 2003-06-25 | 鸿富锦精密工业（深圳）有限公司 | Back board fixing device |
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| JP2010004011A (en) * | 2008-05-19 | 2010-01-07 | Panasonic Corp | Semiconductor device and fabrication method thereof |
| CN103223444A (en) * | 2012-01-26 | 2013-07-31 | 先技精工(日本)有限公司 | Method for manufacturing a caulked assembly |
| CN204075623U (en) * | 2014-05-28 | 2015-01-07 | 福清泳贸塑胶有限公司 | The structure of substrate on the left of a kind of computer monitor backboard |
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2014
- 2014-05-28 CN CN201410230023.1A patent/CN103978348A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1251943A (en) * | 1998-10-21 | 2000-05-03 | 松下电子工业株式会社 | Connecting terminal bay and manufacture thereof |
| WO2002019425A1 (en) * | 2000-08-29 | 2002-03-07 | Orga Kartensysteme Gmbh | Method for production of a support element for an ic component |
| JP2003142633A (en) * | 2001-10-31 | 2003-05-16 | Kyocera Corp | Method of manufacturing wiring board |
| CN2558080Y (en) * | 2002-06-04 | 2003-06-25 | 鸿富锦精密工业（深圳）有限公司 | Back board fixing device |
| CN1842911A (en) * | 2003-01-29 | 2006-10-04 | 跃进封装公司 | Package for integrated circuit lead |
| CN101186004A (en) * | 2007-12-20 | 2008-05-28 | 上海广电光电子有限公司 | Molding method for front frame of liquid crystal display |
| JP2010004011A (en) * | 2008-05-19 | 2010-01-07 | Panasonic Corp | Semiconductor device and fabrication method thereof |
| CN103223444A (en) * | 2012-01-26 | 2013-07-31 | 先技精工(日本)有限公司 | Method for manufacturing a caulked assembly |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105382087A (en) * | 2015-12-02 | 2016-03-09 | 昆山乙盛机械工业有限公司 | Molding process of backboard made from aluminum-plastic board |
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
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Application publication date: 20140813 |