CN208899013U - A kind of sheet-like workpiece chrome-faced device - Google Patents

A kind of sheet-like workpiece chrome-faced device Download PDF

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Publication number
CN208899013U
CN208899013U CN201821514774.6U CN201821514774U CN208899013U CN 208899013 U CN208899013 U CN 208899013U CN 201821514774 U CN201821514774 U CN 201821514774U CN 208899013 U CN208899013 U CN 208899013U
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workpiece
sheet
clamp plate
chrome
upper clamp
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CN201821514774.6U
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杨鹏
谢红涛
陈湘华
谭子豪
姚澧纯
胥勋萍
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AVIC Landing Gear Advanced Manufacturing Corp
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AVIC Landing Gear Advanced Manufacturing Corp
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Abstract

The utility model discloses a kind of sheet-like workpiece chrome-faced devices, hang hanger including the dress for vertically fixing sheet-like workpiece, the dress hangs hanger for being electrically connected with cathode, and the part with anode for being electrically connected;It includes the upper clamp plate for fixing sheet-like workpiece top margin that the dress, which hangs hanger, for fixing the lower clamp plate on sheet-like workpiece bottom edge, and the cathode rod of connection upper clamp plate and lower clamp plate.By above structure, can guarantee sheet-like workpiece process in always be installed on same plane, to its coating uniformity, coverage rate, transition region it is smooth, coating it is careful crystallization and quality of coating have very big promotion, it is electroplated particularly with thickness greater than 0.076mm or more thick chromium layer, effect becomes apparent from.

Description

A kind of sheet-like workpiece chrome-faced device
Technical field
The utility model relates to special warfare processing method field more particularly to a kind of sheet-like workpiece chrome-faced devices.
Background technique
In home and abroad plating profession, the physical and chemical testing bearing reaction technique plating performance and matter after sheet-like workpiece plating Amount, therefore the electroplating quality of sheet-like workpiece, qualification rate and stability can directly influence the plating of product.Currently, sheet-like workpiece Electroplating tooling hung using more single copper ring clamping or simple copper wire, iron wire since sheet-like workpiece structure is simple It hangs, this method is less than 0.05mm following scheme for thickness and is relatively applicable in, and domestic sheet-like workpiece electroplating thickness requires to be only 0.02- 0.04mm, but with Boeing, the requirement of Air Passenger Product Process specification, it needs to carry out qualification test to production line before production, it is required that For layers of chrome thickness 0.076-0.127mm, thickness requirement is at least more than 50% or more home products, according to previous processing method, plating Coating will appear sheet-like workpiece corner generation burr afterwards, and coating crystallization thickness is different, causes thickness of coating fluctuation larger, causes to plate Layer performance detection is unqualified, coating removing, and grain crystalline is coarse.Such as: porosity, binding force sample.It is identified to engineer testing And periodically control brings very big difficulty, disqualification rate height finally cannot really represent the true " shape of part and production line State " influences the erroneous judgement of the process controlled product processing quality, heavy then lead to the retrospect to machined product.Therefore, it needs There is stable process unit to realize its electroplating process to the machining process of sheet-like workpiece, with the true representations technique Electroplating quality process control.
Utility model content
The technical problems to be solved in the utility model is to overcome the deficiencies of the prior art and provide a kind of sheet-like workpiece surface plating Chromium device, the device can meet plating performance control of the sheet-like workpiece surface thickness greater than 0.076mm or more thick chromium layer and require.
In order to solve the above technical problems, the utility model uses following technical scheme:
A kind of sheet-like workpiece chrome-faced device hangs hanger including the dress for vertically fixing sheet-like workpiece, and the dress is hung Hanger with cathode for being electrically connected, and the part with anode for being electrically connected;
It includes the upper clamp plate for fixing sheet-like workpiece top margin that the dress, which hangs hanger, for fixing under sheet-like workpiece bottom edge Clamping plate, and the cathode rod of connection upper clamp plate and lower clamp plate.
By the fixation of upper and lower plywoods, the contact area between sheet-like workpiece and device is greatly improved, tradition is avoided The drawbacks of point contact, can utmostly guarantee sheet-like workpiece coverage rate area;In addition, connecting yin between upper clamp plate and lower clamp plate Pole bar not only can effectively play the effect of cathodic protection, but also package unit can be linked as entirety.By above structure, it is ensured that piece In shape workpiece process always be installed on same plane, to smooth, the coating of its coating uniformity, coverage rate, transition region Careful crystallization and quality of coating have very big promotion, are electroplated particularly with thickness greater than 0.076mm or more thick chromium layer, effect is brighter It is aobvious.
As a further improvement of the above technical scheme:
The bottom of the upper clamp plate offers the first inside groove for the insertion of sheet-like workpiece top margin, opens at the top of the lower clamp plate Equipped with the second inside groove being inserted into for sheet-like workpiece bottom edge, the side of the upper clamp plate and lower clamp plate offers threaded hole.
The cathode rod is equipped with two;Two cathode rods are divided into the both sides of sheet-like workpiece.
The bottom of the upper clamp plate offers the first hole for fixed negative pole bar along the both ends of the first inside groove length direction, The top of the lower clamp plate offers the second hole for fixed negative pole bar, the cathode along the both ends of the second inside groove length direction The upper end of bar is fixed in the first hole by shaft hole matching, and the lower end of the cathode rod is fixed in the second hole by fastener.
The upper clamp plate top is equipped with conducting rod, and the upper end of conducting rod is equipped with plating hook, and the plating hook is used for It is connected with the anode stub of electroplating bath.
The upper clamp plate and lower clamp plate are the identical rectangular template of size, the length side of first inside groove and the second inside groove The long side of rectangular template described in Xiang Junyu is parallel, and the rectangular template is equipped with rounded corner close to the long side of corresponding inside groove.Rounding The radius at angle is preferably 2mm~3mm.Experiments have shown that the size can effectively ensure that sheet-like workpiece closes on the edge of inside groove The uniformity and appearance uniformity of layers of chrome thickness.
The size range of the length W1 of the long side of the upper clamp plate is preferred are as follows: W1≤w1+60mm, wherein w1 is sheet work The length of part top margin.The size range of the length W2 of the long side of the lower clamp plate are as follows: W2≤w2+60mm, wherein w2 is sheet work The length on part bottom edge.The size range can effectively ensure that sheet-like workpiece length direction both sides of the edge in the plating process, and coating is heavy Product appearance, consistency of thickness in the middle part of test specimen.If exceeding this size range, during sheet-like workpiece both sides of the edge thickness of coating can be lower than Between position, it is discontinuous to will lead to edge thickness of coating.It is the key control parameter of the utility model.
The diameter of the cathode rod is 5 times of sheet-like workpiece thickness.The size to the deposition of sheet-like workpiece two sides coating and The uniformity of overall appearance has key effect, is key control parameter of the invention.
Compared with the prior art, the advantages of the utility model are:
The sheet-like workpiece chrome-faced device of the utility model, collection sheet-like workpiece clamping, auxiliary cathode application and sheet work Part conduction is in one, it is ensured that in sheet-like workpiece process always be installed on same plane.Specifically, by pressing from both sides above and below The fixation of plate utmostly guarantees sheet-like workpiece coverage rate area, greatly improves the contact surface between sheet-like workpiece and device The drawbacks of accumulating, avoiding traditional point contact.And by connecting cathode rod between upper clamp plate and lower clamp plate, yin can be effectively played The effect of pole protection, and package unit can be linked as entirety.To its coating uniformity, coverage rate, transition region it is smooth, coating is thin It causes crystallization and quality of coating to have very big promotion, is electroplated particularly with thickness greater than 0.076mm or more thick chromium layer, effect becomes apparent from. Practice have shown that the present apparatus can reach 100% for plane class sheet-like workpiece each in electroplating technology plating qualification rate, especially in combination with power Appearance color uniformity, the thickness uniformity are controllable after the plating such as sheet-like workpiece, porosity sheet-like workpiece, corrosion resistance sheet-like workpiece Within ± 5%, edge impulse- free robustness etc. crystallizes coarse phenomenon;It is thick greater than 0.076mm or more to fully meet sheet-like workpiece surface thickness The plating performance of layers of chrome, which controls, to be required.
2, the utility model is quick for installation, conveniently, and stability is high, reusable.Electroplating technology is able to satisfy for part The control of the coating performances such as planar stability requires, and may extend to remaining plating for having plane class workpiece.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model embodiment parts to be processed.
Fig. 2 is the structural schematic diagram of the sheet-like workpiece chrome-faced device of the utility model embodiment.
Fig. 3 be Fig. 1 A to partial view.
Fig. 4 is the sketch of the upper clamp plate in the utility model embodiment, wherein a) is bottom view, b) it is D-a) D sectional view.
Fig. 5 is the sketch of the upper clamp plate in the utility model embodiment, wherein a) is top view, b) it is E-E a) Sectional view.
Fig. 6 is the sketch of the cathode rod 3 in the utility model embodiment.
1, upper clamp plate;2, lower clamp plate;3, cathode rod;4, plating hook;5, conducting rod;6, fastener;7, housing screw;8, Sheet-like workpiece.
Specific embodiment
The utility model is further described below in conjunction with specific preferred embodiment, but does not therefore limit this reality With novel protection scope.
Embodiment 1:
The sheet-like workpiece chrome-faced device collection sheet-like workpiece clamping of the present embodiment, auxiliary cathode application, sheet-like workpiece are led Electric Yu Yiti facilitates installation and disassembly, and succinct, beautiful.And it requires to have carried out data precipitating and accumulation also according to plating.
Specific mentality of designing and method are as follows:
1. by taking the plating of the sheet-like workpiece of Fig. 1 as an example, it is desirable that as follows:
(1) a length of L, width W, be electroplated with a thickness of two side plane of sheet-like workpiece of γ, coating is not wanted within the 6mm of both ends It asks;
(2) thickness of coating meets related process code requirement;
(3) appearance color is consistent after plating, smooth (chromium plating), densification, impulse- free robustness, thickness of coating are uniform (in ± 10% range);
In conjunction with the requirement of above-mentioned engineering drawing, it is as shown in Figure 2 to design the sheet-like workpiece chrome-faced device:
The sheet-like workpiece chrome-faced device hangs hanger including the dress for vertically fixing sheet-like workpiece 8, and dress is hung hanger and used It is electrically connected in cathode, part with anode for being electrically connected.
It includes the upper clamp plate 1 for fixing 8 top margin of sheet-like workpiece that dress, which hangs hanger, for fixing under 8 bottom edge of sheet-like workpiece Clamping plate 2, and two cathode rods 3 of connection upper clamp plate 1 and lower clamp plate 2, two cathode rods 3 are divided into the both sides of sheet-like workpiece 8.
Wherein, the bottom of upper clamp plate 1 offers the first inside groove for the insertion of 8 top margin of sheet-like workpiece, and the top of lower clamp plate 2 is opened Equipped with the second inside groove being inserted into for 8 bottom edge of sheet-like workpiece, the side of upper clamp plate 1 and lower clamp plate 2 offers threaded hole.Sheet work After corresponding inside groove is inserted on the both sides up and down of part 8, both sides are compressed by the housing screw 7 cooperated with threaded hole.
In the present embodiment, the bottom of upper clamp plate 1 is offered along the both ends of the first inside groove length direction for fixed negative pole bar 3 The first hole, the top of lower clamp plate 2 offers the second hole for fixed negative pole bar 3 along the both ends of the second inside groove length direction, The upper end of cathode rod 3 is fixedly welded in the first hole by shaft hole matching, and the lower end of cathode rod 3 is externally threaded, and by tight Firmware 6(nut) it is fixed with lower clamp plate 2.
In the present embodiment, as shown in figure 3,1 top of upper clamp plate is equipped with conducting rod 5, the upper end of conducting rod 5 is equipped with plating and hangs Hook 4, plating hook 4 with the anode stub of electroplating bath for being connected.
(1) each component design principle and effect are introduced:
Upper clamp plate 1 designs as shown in Figure 4:
In the present embodiment, upper clamp plate 1 is rectangular template, and the length direction of the first inside groove is parallel with the long side of rectangular template, Rectangular template is equipped with rounded corner close to the long side of corresponding inside groove.
W1: the long side length of upper clamp plate 1, design size are the long W+60mm of 8 top margin of sheet-like workpiece;60mm is that multiple experience is electroplated It accumulates and obtains, which can effectively ensure that 8 length direction both sides of the edge of sheet-like workpiece in the plating process, and coating is deposited on sheet 8 middle part appearance of workpiece, consistency of thickness.If it is greater than 60mm, 8 both sides of the edge thickness of coating of sheet-like workpiece can be lower than intermediate position, It is discontinuous that it will lead to edge thickness of coating.It is the key that the utility model controlling position.
X1: groove width in clamping plate, design size are 8 thickness γ+1mm of sheet-like workpiece;
X2: design size is the diameter dimension of 2 times of cathode rods 3, i.e. 2D1;
H3: sheet-like workpiece is inserted into interior groove depth, and the size is depending on the plating requirement of sheet-like workpiece 8, such as present case 6mm model Coating is not required within enclosing, then should be less than 6mm when H3 chooses size, generally subtract (1-2) mm again;
H4: >=2H3;
R: key effect is distributed in the plating process, to power line in the size, should be R2-R3, should not exceed this model It encloses;Through testing, which, which can effectively ensure that, closes on adjacent margins layers of chrome thickness and appearance uniformity;
The hole D3: in order to guarantee that verticality is no more than 0.1mm requirement after cathode rod 3 and upper clamp plate 1 weld, by cathode rod one end Insertion is welded behind the hole K.Diameter dimension is cathode rod D2+0.05mm, i.e. D3=D2+0.05mm;
K: threaded hole compresses the sheet-like workpiece of insertion inside groove for housing screw 7, and choosing size should be according to sheet-like workpiece 8 Depending on plating requires, the upper limit is chosen as far as possible within the specified scope, it is conductive in the compression of housing screw 7 and electroplating process to facilitate.Therefore K =M5-M6。
Lower clamp plate 2 designs as shown in Figure 5:
The hole G2: for being inserted into cathode rod 3, to guarantee postwelding verticality.Design size is the diameter D2+ of cathode rod 3 0.5mm, i.e. G2=D2+0.05mm;
Remaining design size such as upper clamp plate 1.
Cathode rod 3 designs as shown in Figure 6:
D1: 3 diameter of cathode rod, design size are 5 times of the thickness γ of sheet-like workpiece 8, i.e. 5 γ;The size is by a large amount of It tests and obtains, to the uniformity of 8 overall appearance of sheet-like workpiece, it is this that the deposition of 8 two sides coating of sheet-like workpiece, which has key effect, The crucial controlling position of utility model.
D2, H2: the hole D3 of insertion upper clamp plate 1, the thickness of generally 3 times sheet-like workpieces 8, i.e. 3 γ;H2 is insertion depth, About (3-5) mm;
H0: depending on the length dimension L of sheet-like workpiece 8, multiple sheet-like workpieces 8 is also applied for and are connected.About L-2X1+ H4(X1, H4 are shown in upper clamp plate 1);
H1: the reach of cathode rod 3, generally (5-8) mm;
Copper hook 4: for conduction, it is electroplating technology universal hanger, is not described in detail;
Conducting rod 5: length immerses groove body depending on apart from workpiece according to copper hook 4, mostly (450-500) mm, diameter About (10-12) mm;
Nut 6: it is adjusted by 3 screw thread of cathode rod, to fix sheet-like workpiece 8 between lower clamp plate 2 and upper clamp plate 1.
Housing screw 7: for compressing sheet-like workpiece 8 by K threaded hole.Traditional flake workpiece electroplating technology is a little herein Contact electrically conducting manner, electroplating efficiency is low, and plating qualification rate is low.To sheet-like workpiece electroplating evenness without any guarantee, and originally set Point contact is changed to using M5 or M6 screw in compression by meter, on the one hand using being not required to be electroplated in the 6mm of sheet-like workpiece both ends, avoids generating Original point contact, is in addition more importantly changed to the face contact of present screw end face, considerably increases conductive area by fixture print, Sheet-like workpiece current efficiency has been effectively ensured, it is also stable to step up sheet-like workpiece and device, and be allowed to keep same level.
The above is only the preferred embodiment of the application, not does any type of limitation to the application, although this Shen Please disclosed as above with preferred embodiment, however not to limit the application, any person skilled in the art is not taking off In the range of technical scheme, a little variation or modification are made using the technology contents of the disclosure above and is equal to Case study on implementation is imitated, is belonged in technical proposal scope.

Claims (10)

1. a kind of sheet-like workpiece chrome-faced device, which is characterized in that hung including the dress for vertically fixed sheet-like workpiece (8) Frame, the dress hang hanger for being electrically connected with cathode, and the sheet-like workpiece (8) with anode for being electrically connected;
It includes the upper clamp plate (1) for fixing sheet-like workpiece (8) top margin that the dress, which hangs hanger, for fixing sheet-like workpiece (8) bottom The lower clamp plate (2) on side, and the cathode rod (3) of connection upper clamp plate (1) and lower clamp plate (2).
2. sheet-like workpiece chrome-faced device according to claim 1, which is characterized in that the bottom of the upper clamp plate (1) The first inside groove for the insertion of sheet-like workpiece (8) top margin is offered, is offered at the top of the lower clamp plate (2) for sheet-like workpiece (8) The side of second inside groove of bottom edge insertion, the upper clamp plate (1) and lower clamp plate (2) offers threaded hole.
3. sheet-like workpiece chrome-faced device according to claim 2, which is characterized in that the cathode rod (3) is equipped with two Root;Two cathode rods (3) are divided into the both sides of sheet-like workpiece (8).
4. sheet-like workpiece chrome-faced device according to claim 3, which is characterized in that the bottom of the upper clamp plate (1) The first hole for fixed negative pole bar (3), the top edge of the lower clamp plate (2) are offered along the both ends of the first inside groove length direction The both ends of second inside groove length direction offer the second hole for fixed negative pole bar (3), and the upper end of the cathode rod (3) passes through Shaft hole matching is fixed in the first hole, and the lower end of the cathode rod (3) is fixed in the second hole by fastener (6).
5. sheet-like workpiece chrome-faced device according to claim 1, which is characterized in that upper clamp plate (1) the top dress Have conducting rod (5), the upper end of conducting rod (5) is equipped with plating hook (4), and the plating hook (4) is for the sun with electroplating bath Pole stick is connected.
6. sheet-like workpiece chrome-faced device according to claim 4, which is characterized in that the upper clamp plate (1) and lower folder Plate (2) is the identical rectangular template of size, the length direction of first inside groove and the second inside groove with the rectangular template Long side is parallel, and the rectangular template is equipped with rounded corner close to the long side of corresponding inside groove.
7. sheet-like workpiece chrome-faced device according to claim 6, which is characterized in that the radius of the rounded corner is 2mm~3mm.
8. sheet-like workpiece chrome-faced device according to claim 6, which is characterized in that the long side of the upper clamp plate (1) Length W1 size range are as follows: W1≤w1+60mm, wherein w1 be sheet-like workpiece (8) top margin length.
9. sheet-like workpiece chrome-faced device according to claim 6, which is characterized in that the long side of the lower clamp plate (2) Length W2 size range are as follows: W2≤w2+60mm, wherein w2 be sheet-like workpiece (8) bottom edge length.
10. sheet-like workpiece chrome-faced device according to claim 1, which is characterized in that the diameter of the cathode rod (3) It is 5 times of sheet-like workpiece (8) thickness.
CN201821514774.6U 2018-09-17 2018-09-17 A kind of sheet-like workpiece chrome-faced device Active CN208899013U (en)

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Application Number Priority Date Filing Date Title
CN201821514774.6U CN208899013U (en) 2018-09-17 2018-09-17 A kind of sheet-like workpiece chrome-faced device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201821514774.6U CN208899013U (en) 2018-09-17 2018-09-17 A kind of sheet-like workpiece chrome-faced device

Publications (1)

Publication Number Publication Date
CN208899013U true CN208899013U (en) 2019-05-24

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