CN218710982U - Work piece downthehole chromium plating auxiliary device - Google Patents
Work piece downthehole chromium plating auxiliary device Download PDFInfo
- Publication number
- CN218710982U CN218710982U CN202223022985.7U CN202223022985U CN218710982U CN 218710982 U CN218710982 U CN 218710982U CN 202223022985 U CN202223022985 U CN 202223022985U CN 218710982 U CN218710982 U CN 218710982U
- Authority
- CN
- China
- Prior art keywords
- hole
- workpiece
- work piece
- auxiliary device
- mounting hole
- Prior art date
- Legal status (The legal status 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 status listed.)
- Active
Links
Images
Landscapes
- Electroplating Methods And Accessories (AREA)
Abstract
The utility model discloses an downthehole chromium plating auxiliary device of work piece, it includes anchor clamps, anchor clamps include the connecting plate and connect respectively two arm lock at connecting plate both ends, two all offer the first through-hole unanimous with the mounting hole internal diameter of work piece in the corresponding position department with the mounting hole of waiting to electroplate the work piece on the arm lock, make two when the arm lock is pressed from both sides it from the work piece both ends tightly, first through-hole closely links up with the mounting hole of work piece. Two the arm lock can be tight with the work piece clamp from the mounting hole both ends of work piece respectively, two when pressing from both sides first through-hole on the arm lock links up with the both ends of the mounting hole of work piece respectively for the mounting hole of work piece converts the mid portion of chromium plating hole into, and it is most advanced to avoid the both ends edge of work piece to form, thereby has avoided because "most advanced effect" and the chromium layer of the mounting hole both ends department of work piece that leads to when electroplating is too thick, makes the mounting hole internal surface of work piece obtain even chromium layer.
Description
Technical Field
The utility model relates to an electroplate auxiliary device technical field, especially relate to an downthehole chromium plating auxiliary device of work piece.
Background
The chromium plating recovery size is a basic repairing method used in the aviation equipment repairing industry, and can ensure that the hardness and the bonding force of the chromium plating layer meet the requirements of new aviation materials. However, the dispersion ability of the chromium plating solution is very poor, the current density is very high, and because of the 'tip effect' in the electroplating professional field, the two ends of the chromium plating layer are thick, the middle of the chromium plating layer is thin, the chromium plating layer can not be uniformly deposited, the chromium plating layer can not be accurately machined or the size of a finished product can not be ensured like machining, generally, a part chromium plating machining surface needs to be ground by adopting a machining grinding mode after the product chromium plating, and the size precision of the part and the smoothness of the chromium plating surface are ensured.
The lower component of the landing gear of a certain type of airplane is a mounting connecting piece of a front landing gear wheel shaft and a front lifting inner cylinder (piston rod), as shown in figure 1, a phi 38.1 torsion-proof arm mounting hole is used for mounting a lower torsion-proof arm and a pin rod, so that the deflection impact of a front airplane wheel on the airplane during take-off, landing, sliding, turning and the like is prevented, and the partial abrasion out-of-tolerance often occurs in the mounting hole, so that the deflection phenomenon of the front wheel of the airplane is prominent, and the flight safety is influenced. Because the lower assembly product is complex in shape and structure, a proper machining device is not used for grinding the mounting hole, the size cannot be restored by adopting a grinding mode after chromium plating, and the lower assembly product is treated by adopting a mode of scrapping and replacing. However, the purchase cost of the new lower assembly is high, and the whole lower assembly is scrapped only due to the fact that the abrasion size of the mounting hole is out of tolerance, so that a large amount of resources are wasted.
Patent application No. 201720045276.0 discloses an internal diameter chromium plating auxiliary device of booster urceolus, through install the protection negative pole additional at the both ends of booster urceolus hole to protect the non-chromium plating position, nevertheless because the electric current can gather at the tip part during electroplating, lead to booster urceolus hole both ends to be close to the chromium layer of the position department of protection negative pole and show the excess thickness, make booster urceolus hole can't obtain even chromium layer.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to overcome above-mentioned technique not enough, provide a downthehole chromium plating auxiliary device of work piece, solve among the prior art hole chromium plating auxiliary device because the electric current can gather at the tip portion when electroplating, lead to the hole can't obtain the technical problem of even chromium layer when the chromium plating.
In order to achieve the technical purpose, the technical scheme of the utility model a work piece downthehole chromium plating auxiliary device is provided, including anchor clamps, anchor clamps include the connecting plate and connect respectively two arm locks at connecting plate both ends, two all offer the first through-hole unanimous with the mounting hole internal diameter of work piece in the corresponding position department with the mounting hole of waiting to electroplate the work piece on the arm lock, make two when the arm lock presss from both sides it from both sides tightly from both sides from the work piece both ends, first through-hole closely links up with the mounting hole of work piece.
Furthermore, the inner walls of the two clamping arms are respectively provided with binding surfaces corresponding to two end surfaces of the workpiece, so that when the two clamping arms clamp the workpiece from two ends of the workpiece, the inner walls of the two clamping arms can be respectively tightly attached to the two end surfaces of the workpiece.
Furthermore, the auxiliary device for plating chromium in the workpiece hole further comprises an anode positioning mechanism, wherein the anode positioning mechanism comprises an upper anode fixing component and a lower anode fixing component which are respectively used for fixing the upper end and the lower end of the electroplating anode;
go up the fixed subassembly of positive pole with the fixed subassembly of positive pole all includes screw rod, locating plate and first fastening nut down, all be fixed with two at least edges on the arm lock first through-hole circumference distributes the screw rod, just the axial of screw rod with the axial direction parallel of first through-hole, the screw rod is all followed the activity is passed in the locating plate, first fastening nut with screw rod screw-thread fit connects, in order to incite somebody to action the locating plate is fixed on the screw rod, and seted up on the locating plate with electroplate positive pole assorted second through-hole, go up in the fixed subassembly of positive pole the second through-hole in the fixed subassembly of positive pole down and first through-hole coaxial setting.
Furthermore, the clamping arm is fixedly provided with three screws distributed along the circumferential direction of the first through hole.
Furthermore, a through hole is formed in the position, corresponding to the screw, of the positioning plate, and the inner diameter of the through hole is 1.2-1.5 times of the major diameter of the screw.
Furthermore, a plurality of first threaded holes which are in one-to-one correspondence with the screw rods are formed in the clamping arms, and the screw rods are in threaded connection with the corresponding first threaded holes.
Further, the upper anode fixing assembly and the lower anode fixing assembly further comprise second nuts for fixing the screws in the corresponding first threaded holes.
Furthermore, the workpiece hole inner chromium plating auxiliary device further comprises an adjusting mechanism, the adjusting mechanism comprises an adjusting bolt and a connecting block, a second threaded hole is transversely formed in the connecting plate, the adjusting bolt penetrates through the second threaded hole and then is connected with the connecting block, and the connecting block is used for being fixedly connected with a workpiece.
Furthermore, the connecting block is adhered to the outer wall of the workpiece through adhesive.
Furthermore, the clamping arm is a metal clamping arm.
Compared with the prior art, the beneficial effects of the utility model include:
in the auxiliary device for the in-hole chromium plating of the workpiece, the two clamping arms can clamp the workpiece from two ends of the mounting hole of the workpiece respectively, and when the clamping is performed, the two first through holes in the clamping arms are respectively connected with two ends of the mounting hole of the workpiece, so that the mounting hole of the workpiece is converted into the middle part of a chromium plating inner hole, and the edges at two ends of the workpiece are prevented from forming tips, so that the chromium layers at two ends of the mounting hole of the workpiece, which are caused by the tip effect during electroplating, are prevented from being too thick, and the inner surface of the mounting hole of the workpiece is enabled to obtain an even chromium layer.
Drawings
FIG. 1 is a schematic illustration of a prior art undercarriage assembly of an aircraft;
fig. 2 is a schematic structural diagram of the auxiliary device for in-hole chromium plating of a workpiece provided by the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
The utility model provides a downthehole chromium plating auxiliary device of work piece, its structure is as shown in figure 1, including anchor clamps 1, anchor clamps 1 includes connecting plate 11 and connects respectively two arm lock 12, two of connecting plate 11 both ends all offer the first through-hole 10 unanimous with the mounting hole internal diameter of work piece 100 in the corresponding position department with the mounting hole of waiting to electroplate the work piece on the arm lock 12, make two when the arm lock 12 presss from both sides it from both sides tightly from work piece 100 both ends, first through-hole 10 closely links up with the mounting hole of work piece 100. Specifically, in this embodiment, the clamping arm 12 is a metal clamping arm.
In the auxiliary device for the in-hole chromium plating of the workpiece, the two clamping arms 12 can clamp the workpiece 100 from two ends of the mounting hole of the workpiece 100 respectively, and when the clamping is performed, the two first through holes in the clamping arms 12 are respectively connected with two ends of the mounting hole of the workpiece 100, so that the mounting hole of the workpiece 100 is converted into the middle part of a chromium plating inner hole, the edges of two ends of the workpiece 100 are prevented from forming tips, the phenomenon that the chromium layers at two ends of the mounting hole of the workpiece 100 are too thick due to the tip effect during electroplating is avoided, and the inner surface of the mounting hole of the workpiece 100 is enabled to obtain an even chromium layer.
As a preferred embodiment, in order to enable the clamp 1 to be suitable for different workpieces 100, a telescopic driving element (not shown in the figure) is fixedly arranged on the connecting plate 11, a fixed end of the telescopic driving element is fixed on the connecting plate 11, a movable end of the telescopic driving element is fixedly connected with one of the clamping arms 12, and the other clamping arm 12 is fixedly connected with the connecting plate 11; specifically, the telescopic driving member may be an air cylinder or an oil cylinder.
As a preferred embodiment, the inner walls of the two clamping arms 12 respectively have abutting surfaces corresponding to two end surfaces of the workpiece 100, so that when the two clamping arms 12 clamp the workpiece 100 from two ends thereof, the inner walls of the two clamping arms 12 can respectively and tightly abut against two end surfaces of the workpiece 100, thereby insulating two side end surfaces of the workpiece 100 which do not need to be chrome-plated, and avoiding plating chromium layers on the two side end surfaces of the workpiece 100 in a chrome plating process.
As a preferred embodiment, the workpiece hole internal chromium plating auxiliary device further comprises an anode positioning mechanism 2, wherein the anode positioning mechanism 2 comprises an upper anode fixing component 21 and a lower anode fixing component 22 which are respectively used for fixing the upper end and the lower end of a plating anode 20;
go up fixed subassembly 21 of positive pole with fixed subassembly 22 of lower positive pole all includes screw rod 211, locating plate 212 and first fastening nut 213, all be fixed with two at least on the arm lock 12 along first through-hole 10 circumference distributes screw rod 211, just the axial of screw rod 211 with the axial direction of first through-hole 10 is parallel, screw rod 211 all follows the activity passes in the locating plate 212, first fastening nut 213 with screw rod screw-thread fit connects, in order to fix the locating plate 212 on the screw rod 211, and set up on the locating plate 212 with electroplating positive pole 20 assorted second through-hole, go up in the fixed subassembly 21 of positive pole the second through-hole in the fixed subassembly 22 of lower positive pole and first through-hole 10 coaxial setting.
It can be understood that the upper anode fixing component 21 and the lower anode fixing component 22 can respectively fix two ends of the plating anode 20, so that the axis of the plating anode 20 coincides with the central line of the mounting hole of the workpiece 100, thereby avoiding ovality or taper of the chromium plating layer caused by the deviation of the plating anode 20.
As a preferred embodiment, three screw rods 211 circumferentially distributed along the first through hole 10 are fixedly arranged on the clamping arm 12.
It can be understood that, due to the stability of the triangle, three screws 211 are engaged with the corresponding first fastening nuts 213, so as to prevent the positioning plate 212 from tilting.
In a preferred embodiment, a through hole is formed in a position of the positioning plate 212 corresponding to the screw 211, and the inner diameter of the through hole is 1.2 to 1.5 times the larger diameter of the screw 211.
It is understood that the inner diameter of the through hole is set to be 1.2 to 1.5 times the larger diameter of the screw 211, so that the angle of the positioning plate 212 with respect to the horizontal plane can be adjusted to adjust the plating anode 20 to the exact center of the mounting hole of the workpiece 100.
As a preferred embodiment, a plurality of first threaded holes corresponding to the screws 211 one to one are formed in the clamping arm 12, and the screws 211 are in threaded connection with the corresponding first threaded holes, so that the screws 211 can be conveniently connected to and detached from the clamping arm 12.
In a preferred embodiment, each of the upper anode fixing assembly 21 and the lower anode fixing assembly 22 further includes a second nut 214 for fixing the screw 211 in the corresponding first threaded hole, so as to prevent the screw 211 from rotating in the first threaded hole.
As a preferred embodiment, the device for assisting in chrome plating in the hole of the workpiece further comprises an adjusting mechanism 3, the adjusting mechanism 3 comprises an adjusting bolt 31 and a connecting block 32, a second threaded hole is transversely formed in the connecting plate 11, the adjusting bolt 31 penetrates through the second threaded hole and then is connected with the connecting block 32, and the connecting block 32 is used for being fixedly connected with the workpiece 100.
It is understood that the position of the workpiece 100 can be adjusted in the lateral direction by turning the adjustment bolt 31 so that the end of the mounting hole of the workpiece 100 is aligned with and coincides with the end of the first through-hole 10.
As a preferred embodiment, the connecting block 32 may be adhered to the outer wall of the workpiece 100 by an adhesive. Specifically, in this embodiment, the workpiece 100 is an undercarriage component of an airplane of a certain type, the mounting hole of the workpiece 100 is a Φ 38.1 torsion arm mounting hole, the outer wall of the workpiece 100 is provided with a groove, and the connecting block 32 is fixedly embedded in the groove.
For convenience of understanding, the technical solution of the present invention is described in detail below with reference to fig. 1 and 2:
during operation, a workpiece 100 is fixedly embedded in the fixture 1, so that the two clamping arms 12 can respectively clamp the workpiece 100 from two ends of the mounting hole of the workpiece 100, the connecting block 32 is fixedly connected with the outer wall of the workpiece 100, and the adjusting bolt 31 is rotated to adjust the position of the workpiece 100 along the transverse direction until the end of the mounting hole of the workpiece 100 is aligned with and overlapped with the end of the first through hole 10.
One end of the electroplating anode 20 sequentially passes through the second through hole of the positioning plate 212 of the upper anode fixing assembly 21, the mounting hole of the workpiece 100, the first through hole 10 of the clamping arm 12 and the second through hole of the positioning plate 212 of the lower anode fixing assembly 22, the electroplating anode 20 is positioned by screwing the first fastening nut 213, and then the clamp 1, the workpiece 100 and the electroplating anode 20 are placed in an electroplating bath, so that the chromium electroplating operation can be performed.
If necessary, an insulating tape may be wound around a portion of the workpiece 100 where chrome plating is not required.
The utility model provides a pair of downthehole chromium plating auxiliary device of work piece has following beneficial effect:
(1) The two clamping arms 12 can respectively clamp the workpiece 100 from two ends of the mounting hole of the workpiece 100, and when the workpiece is clamped, the first through holes in the two clamping arms 12 are respectively connected with two ends of the mounting hole of the workpiece 100, so that the mounting hole of the workpiece 100 is converted into the middle part of a chromium-plated inner hole, and tips are prevented from being formed at edges of two ends of the workpiece 100, thereby preventing the chromium layers at two ends of the mounting hole of the workpiece 100 from being too thick due to the "tip effect" during electroplating, and enabling the inner surface of the mounting hole of the workpiece 100 to obtain a uniform chromium layer;
(2) The inner walls of the two clamping arms 12 are respectively provided with binding surfaces corresponding to two end surfaces of the workpiece 100, so that when the two clamping arms 12 clamp the workpiece 100 from two ends thereof, the inner walls of the two clamping arms 12 can be respectively and tightly attached to the two end surfaces of the workpiece 100, thereby insulating the two side end surfaces of the workpiece 100 which do not need to be plated with chromium, and avoiding the two side end surfaces of the workpiece 100 from being plated with chromium layers in the chromium plating process;
(3) The inner diameter of the through hole is set to be 1.2 to 1.5 times of the major diameter of the screw 211, so that the angle of the positioning plate 212 relative to the horizontal plane can be adjusted, and the electroplating anode 20 is adjusted to the right center of the mounting hole of the workpiece 100;
(4) The position of the workpiece 100 can be adjusted in the lateral direction by turning the adjustment bolt 31 so that the end of the mounting hole of the workpiece 100 is aligned with and coincides with the end of the first through hole 10.
The above description of the present invention does not limit the scope of the present invention. Any other corresponding changes and modifications made according to the technical idea of the present invention should be included in the scope of the claims of the present invention.
Claims (10)
1. The utility model provides an downthehole chromium plating auxiliary device of work piece, its characterized in that, includes anchor clamps, anchor clamps include the connecting plate and connect respectively two arm lock at connecting plate both ends, two all offer the first through-hole unanimous with the mounting hole internal diameter of work piece in the position department that corresponds with the mounting hole of waiting to electroplate the work piece on the arm lock, make two when the arm lock presss from both sides it from both ends of work piece tightly, first through-hole closely links up with the mounting hole of work piece.
2. The auxiliary device for chrome plating in a hole of a workpiece as claimed in claim 1, wherein the inner walls of the two clamping arms have abutting surfaces corresponding to two end surfaces of the workpiece respectively, so that when the two clamping arms clamp the workpiece from two ends thereof, the inner walls of the two clamping arms can be tightly abutted to the two end surfaces of the workpiece respectively.
3. The auxiliary device for in-hole chromium plating of a workpiece as recited in claim 1, further comprising an anode positioning mechanism, said anode positioning mechanism comprising an upper anode fixing component and a lower anode fixing component for fixing the upper and lower ends of the plating anode, respectively;
go up the fixed subassembly of positive pole with the fixed subassembly of positive pole all includes screw rod, locating plate and first fastening nut down, all be fixed with two at least edges on the arm lock first through-hole circumference distributes the screw rod, just the axial of screw rod with the axial direction parallel of first through-hole, the screw rod is all followed the activity is passed in the locating plate, first fastening nut with screw rod screw-thread fit connects, in order to incite somebody to action the locating plate is fixed on the screw rod, and seted up on the locating plate with electroplate positive pole assorted second through-hole, go up in the fixed subassembly of positive pole the second through-hole in the fixed subassembly of positive pole down and first through-hole coaxial setting.
4. The auxiliary device for chrome plating in a hole of a workpiece as claimed in claim 3, wherein three screws are fixedly arranged on the clamping arm and circumferentially distributed along the first through hole.
5. The auxiliary device for chrome plating in the hole of the workpiece as claimed in claim 3, wherein a through hole is formed at a position of the positioning plate corresponding to the screw, and the inner diameter of the through hole is 1.2-1.5 times of the major diameter of the screw.
6. The auxiliary device for chrome plating in a hole of a workpiece according to claim 3, wherein a plurality of first threaded holes corresponding to the screws one to one are formed in the clamping arm, and the screws are in threaded connection with the corresponding first threaded holes.
7. The auxiliary device for chrome plating in holes of workpieces as claimed in claim 6, wherein said upper anode fixing component and said lower anode fixing component each further comprises a second nut for fixing said screw in said corresponding first threaded hole.
8. The auxiliary device for chrome plating in a hole of a workpiece as claimed in claim 1, further comprising an adjusting mechanism, wherein the adjusting mechanism comprises an adjusting bolt and a connecting block, a second threaded hole is transversely formed in the connecting plate, the adjusting bolt passes through the second threaded hole and then is connected with the connecting block, and the connecting block is used for being fixedly connected with the workpiece.
9. The auxiliary device for the in-hole chromium plating of the workpiece as claimed in claim 8, wherein the connecting block is adhered to the outer wall of the workpiece by an adhesive.
10. The auxiliary device for chrome plating in a hole of a workpiece as recited in claim 1, wherein said clamping arm is a metal clamping arm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223022985.7U CN218710982U (en) | 2022-11-11 | 2022-11-11 | Work piece downthehole chromium plating auxiliary device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223022985.7U CN218710982U (en) | 2022-11-11 | 2022-11-11 | Work piece downthehole chromium plating auxiliary device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218710982U true CN218710982U (en) | 2023-03-24 |
Family
ID=85617943
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223022985.7U Active CN218710982U (en) | 2022-11-11 | 2022-11-11 | Work piece downthehole chromium plating auxiliary device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218710982U (en) |
-
2022
- 2022-11-11 CN CN202223022985.7U patent/CN218710982U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109129186B (en) | Positioning fixture and clamping method for titanium alloy annular casting | |
| CN104889783A (en) | Coating clamp for lathe for machining hole of eccentric valve body | |
| CN218710982U (en) | Work piece downthehole chromium plating auxiliary device | |
| CN109128913A (en) | A kind of fixture and processing method for the processing of shoe component boring | |
| CN112247618B (en) | Special fixture and method for machining end face of tenon root of blade of aero-engine | |
| CN115213504A (en) | Electrode clamp assembly | |
| CN212122055U (en) | Split adjustable static shaft shoulder welding tool for welding unequal-thickness plates | |
| CN112238271B (en) | Device for machining multi-thread nut in indexing manner and sequential grinding method | |
| CN110961960B (en) | Numerical control lathe clamp for machining slender shaft with flange plate | |
| CN211028418U (en) | Rapid positioning clamp for hollow shaft gear shaping | |
| CN217617945U (en) | Drilling and reaming fixture for titanium alloy framework-shaped part of airplane | |
| CN113752062B (en) | Automobile-used frock of complicated weldment | |
| CN110936099A (en) | Process method for maintaining high-pressure turbine guide pipe | |
| CN214816773U (en) | Numerical control milling accurate positioning tool for large precision shaft parts | |
| CN216575556U (en) | Positioning fixture for turning | |
| CN113714529B (en) | Multifunctional mandrel with adjustable range | |
| CN217412491U (en) | Jack catch, chuck anchor clamps and lathe | |
| CN219131947U (en) | Inner hole grinding clamp for machining shaft sleeve holes | |
| CN211072755U (en) | Special machine for turning shaft end faces | |
| CN218534322U (en) | Component weak-rigidity butt-joint separating surface shape-preserving tool | |
| CN211192974U (en) | Large-scale pump shaft ring piece location frock | |
| CN210908997U (en) | Machining tool for turning internal threads of connector body | |
| CN217193917U (en) | Turning, milling and grinding clamping tool with outer circle positioning end face | |
| CN112610574B (en) | Metal reinforcing component for ceramic matrix composite material support and support assembling method | |
| CN220783499U (en) | Inner hole grinding clamp for machining shaft sleeve holes |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |