CN113463169B - Hole electroplating protection tool for part with hole and using method - Google Patents
Hole electroplating protection tool for part with hole and using method Download PDFInfo
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- CN113463169B CN113463169B CN202110745969.1A CN202110745969A CN113463169B CN 113463169 B CN113463169 B CN 113463169B CN 202110745969 A CN202110745969 A CN 202110745969A CN 113463169 B CN113463169 B CN 113463169B
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- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D17/00—Constructional parts, or assemblies thereof, of cells for electrolytic coating
- C25D17/06—Suspending or supporting devices for articles to be coated
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- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D17/00—Constructional parts, or assemblies thereof, of cells for electrolytic coating
- C25D17/007—Current directing devices
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- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D17/00—Constructional parts, or assemblies thereof, of cells for electrolytic coating
- C25D17/008—Current shielding devices
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- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D7/00—Electroplating characterised by the article coated
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- Organic Chemistry (AREA)
- Electroplating Methods And Accessories (AREA)
Abstract
The invention discloses a hole electroplating protection tool for a part with a hole and a use method, and belongs to the technical field of electroplating. The device comprises a hollow protection tube and a conductive clamp, wherein the hollow protection tube is inserted into a part hole and plays a role in current shielding on the inner wall of the part hole; the conductive clamp comprises a clamping conductive connecting part, a conductive rod and a fastener which are arranged in sequence; the hollow protection tube is sleeved outside the conducting rod. The hollow protection tube replaces the existing rubber plug, avoids the condition that the rubber plug falls off or is sucked into the hole of the part due to shrinkage deformation, effectively avoids electroplating on the inner wall of the part with the hole, has no residue in the hole, and improves the later use quality of the part product. Be equipped with the spread groove on the solid pole and can avoid part ligature vestige, eliminate local no cladding material defect, improve part cladding material homogeneity, promote part surface quality, reduce the cost of doing over again, the conducting rod makes cladding material more even, and electroplating efficiency is higher.
Description
Technical Field
The invention relates to the technical field of electroplating, in particular to an in-hole electroplating protection tool for parts with holes, such as straight-through pipe joints, through holes and the like, and a using method thereof.
Background
At present, for standard parts (such as pipe joints), parts of which through hole type inner holes are not electroplated need to be firstly protected by blocking holes one by adopting rubber plugs in actual production, then the parts are hung in a mode of binding iron wires (or copper wires), and after the protection and hanging work of the electroplated parts is finished, electroplating production is carried out.
The protection and hanging mode is characterized in that workers operating on site block holes one by one to protect and hang, and because the rubber materials have different expansion and contraction reaction characteristics in different temperature ranges, the temperature ranges of the pretreatment tanks are different (for example, the temperature of a degreasing tank is 71-82 ℃, the hot washing temperature is 40-60 ℃, and the cold washing tank is room temperature), the rubber plug is easy to loosen or fall after expansion and contraction, so that the inner hole of a part is plated with a cadmium layer or generates water to be rusted; or the rubber plug is sucked into the hole of the part and is not found in time to cause the residue, thereby influencing the delivery and use of the part and increasing the production cost.
On the other hand, the hanger is generally made of iron wires, so that no plating layer is formed on the surface of the part at the hanger part and the corrosion resistance of the part is reduced. On the other hand, because the distribution of the power lines is uneven in the electroplating process, the power lines at two ends of the part are concentrated, the deposition speed of the coating is high, the thickness of the local coating of the part is uneven, the later assembly coordination of the part is influenced, and the rework cost of the part is increased.
Simultaneously, adopt iron wire (or copper wire) horizontal ligature screw thread part, wear to electroplate and prepare on the single clamp one by one on the cluster again, the part is in whole electroplating production process, because the part in the course of working constantly removes between the electroplating treatment groove, collides mutually easily and produces the high risk of bruising, influences later stage part life.
Disclosure of Invention
In order to solve the problems, the invention provides a hole electroplating protection tool for a part with a hole, which can well protect the hole in the electroplating process, prevent the hole from being electroplated, improve the corrosion resistance and surface quality of the part and reduce the collision risk of the part.
The invention also provides a use method of the hole electroplating protection tool for the part with the hole.
In order to achieve the purpose, the invention is realized by the following technical scheme:
a hole electroplating protection tool for a part with a hole comprises,
the hollow protection tube is inserted into the part hole and is contacted with the inner wall of the part hole, and plays a role in shielding current on the inner wall of the part hole;
the conductive clamp comprises a clamping conductive connecting part, a conductive rod and a fastener, wherein the clamping conductive connecting part and the fastener are respectively connected to two ends of the conductive rod; the hollow protection tube is sleeved outside the conducting rod; the clamping conductive connecting part comprises a solid rod and a check ring, the check ring is arranged between the clamping conductive connecting part and the conductive rod and used for fixing the end part of the part and the hollow protection tube, and the solid rod is provided with a connecting groove for binding and hanging.
Furthermore, in the hollow protection tube straight tube, a plurality of parts are sequentially sleeved on the outer surface of the hollow protection tube along the hollow protection tube shaft to form a whole string of parts.
Further, the fastener includes threaded rod and fixation nut, the fixation nut cover is established the tip that is used for fixed part and hollow protection tube on the threaded rod.
Further, the connecting groove is any one of a key groove, a thread and an anti-slip thread.
Further, the connecting groove is arranged on the solid rod and close to the conducting rod.
Furthermore, two end parts of the hollow protection tube are in round angle smooth transition.
Further, the solid rod and the conductive rod are integrally formed, and the conductive rod and the threaded rod are integrally formed.
Furthermore, the hollow protection tube is made of 1Cr18NiTi stainless steel.
The invention also discloses a use method of the hole electroplating protection tool for the part with the hole, which comprises the following steps:
s1, selecting a hollow protection tube matched with the size of an inner hole of a part subjected to surface electroplating, cleaning the outer diameter of the hollow protection tube by using an aviation cleaning agent, drying by using compressed air, and sleeving the part on the surface of the hollow protection tube;
s2, forming a whole series of parts on the conducting rod by the aid of the parts, and fixing the hollow protection tube by means of matching of a fixing nut and a screw;
and S3, binding one end of the conductive metal in a connecting groove of the clamping conductive connecting part, connecting the other end of the conductive metal with an electroplating clamp, electroplating the surface of the part, and not electroplating the current shielding of the inner wall of the part hole through the hollow protection tube.
The invention discloses a hole electroplating protection tool for a part with a hole and a using method, and has the beneficial effects that:
(1) The hollow protection tube made of stainless steel replaces the existing rubber plug, the condition that the rubber plug falls off or is sucked into the hole of the part due to shrinkage deformation is avoided, electroplating of the inner wall of the part with the hole is effectively avoided, no surplus substance is left in the hole, and the later-stage use quality of the part product is improved.
(2) Be equipped with the spread groove on the solid pole, spread groove and threaded rod are respectively at the both ends of leading electrical fixture, and the conductive metal ligature is hung the dress and is reached electroplating to whole part on spread groove and threaded rod, avoids part ligature vestige, eliminates local no cladding material defect, improves part cladding material homogeneity, promotes part surface quality, reduces the cost of doing over again.
(3) The conductive metal is conductive through the conductive rod, and the conductive rod penetrates through the whole electroplating part, so that the plating layer on the surface of the electroplating part is more uniform, and the electroplating efficiency is higher.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a schematic structural view of a conductive clip according to the present invention;
FIG. 2 is a schematic view of another embodiment of the conductive clip of the present invention;
FIG. 3 is a schematic view of another embodiment of the conductive clip of the present invention;
FIG. 4 is a schematic structural view of the hollow protection tube according to the present invention;
FIG. 5 is a schematic structural view of a protection tool and a part assembly according to the present invention;
FIG. 6 is a schematic cross-sectional view of a protective tooling and part assembly of the present invention;
1-hollow protection tube, 2-clamping conductive connecting part, 3-conductive rod, 4-solid rod, 5-check ring, 6-threaded rod, 7-fixing nut, 8-connecting groove and 9-part.
Detailed Description
In order to make the technical solutions of the present invention better understood, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the specification of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1
A hole electroplating protection tool for a part with a hole, as shown in figures 1, 4-6, comprises a hollow protection tube 1 and a conductive clamp.
Specifically, the conductive clamp comprises a clamping conductive connecting part 2, a conductive rod 3 and a fastener, wherein the clamping conductive connecting part 2 and the fastener are respectively connected to two ends of the conductive rod 3. The hollow protection tube 1 is sleeved outside the conducting rod 3, and the hollow protection tube 1 is inserted into the hole of the part 9, so that the conducting rod 3 layer, the hollow protection tube 1 layer and the part 9 are arranged from inside to outside. The outer wall of the hollow protection tube 1 is in contact with the inner wall of the hole of the part to shield the current of the inner wall of the hole, so that the surface of the part 9 is provided with a coating in the electroplating process, the inner wall of the hole is not electroplated, and the inner wall of the hole is protected by electroplating.
In this embodiment, the clamping conductive connecting portion 2 includes a solid rod 4 and a retainer ring 5, and the retainer ring 5 is disposed between the clamping conductive connecting portion 2 and the conductive rod 3 and is used for fixing the end portion of the part 9 and the hollow protection tube 1. The fastener includes threaded rod 6 and fixation nut 7, and fixation nut 7 cover is established and is used for the tip of fixed part and hollow protection tube 1 on threaded rod 6.
The check ring 5 and the fixing nut 7 are respectively arranged at two ends of the conducting rod 3, and the hollow protection tube 1 is sleeved on the conducting rod 3, so that the check ring 5 and the fixing nut 7 are respectively arranged at two ends of the hollow protection tube 1 to fix the hollow protection tube 1, the hollow protection tube 1 and parts 9 on the surface of the hollow protection tube 1 are prevented from swinging in the electroplating process, and the uniformity of part coatings is improved.
The clamping conductive connecting part 2 mainly functions in conducting and clamping. The one end of electrically conductive iron wire or copper wire is connected at electrically conductive connecting portion 2 of clamping, and the other end and the electroplating jig of electrically conductive iron wire or copper wire can enough electrically conduct, can fix electrically conductive anchor clamps again.
In this embodiment, two tip of hollow protection tube 1 are fillet smooth transition, avoid the part to cup joint the wearing and tearing when hollow protection tube 1, effectively protect the part.
Illustratively, the hollow protection tube 1 is a straight tube made of 1Cr18NiTi stainless steel, which is corrosion-resistant, light in weight, high in strength and not easy to break. The length of the hollow protection tube 1 is 400-600mm, the thickness of the tube wall is 0.5-1mm, the outer diameter can be different according to the size of the inner hole of the processed part, and the roughness of the outer surface is Ra1.6. The length and the wall thickness of the hollow protection tube 1 include, but are not limited to, those described in the present embodiment, and can be increased or decreased according to actual conditions.
And the diameter of the conducting rod 3 in the conducting clamp is 8mm, the surface roughness is Ra1.6, and the length of the conducting rod 3 is the same as that of the hollow protecting tube 1, namely the length of the conducting rod 3 is 400-600mm. The conducting rod 3 penetrates into the hollow protection tube 1, so that electroplating ions on the surface of a part outside the hollow protection tube 1 are uniformly distributed, and the uniform plating of all parts of the whole hollow protection tube 1 is guaranteed.
The diameter of the solid rod 4 is 10mm, the length of the solid rod is 40mm, and the solid rod 4 and the conducting rod 3 are integrally formed. A retainer ring 5 is arranged between the conducting rod 3 and the solid rod 4. The effect of retaining ring 5 is mainly avoided being close to the direct and electrically conductive iron wire (or copper wire) contact of part of the electrically conductive connecting portion 2 of clamping and leads to local electric current too big, ablation part. The retainer ring 5 is made of insulating materials, mainly insulating rubber. The insulating rubber can be insulated, and the part close to the clamping conductive connecting part 2 is prevented from being damaged due to overlarge current. In addition, the insulating rubber has elasticity, can be directly sleeved on the solid rod 4, is convenient to mount and dismount, and also has a high-efficiency anti-corrosion effect.
The threaded rod 6 is connected with the conductive rod 3 in an integrated forming mode, and the length of the threaded rod 6 is 40mm and is matched with the fixing nut 7. The fixing nut 7 is also made of stainless steel, and has a shielding effect to prevent burning of parts at the end due to excessive local current. After the parts are sequentially connected on the conducting rod 3 in series, one end of the conducting rod 3 is provided with the check ring 5, and the other end of the conducting rod 3 is fastened through the fixing nut 7, so that the parts and the hollow protection rod cannot swing on the conducting rod 3 along the axial direction, and the quality of the electroplated parts is improved. The fixing nut 7 has the fastening function and the current shielding function, so that parts are saved, the structure of the whole protection tool is simpler, and the operation efficiency is improved.
In this embodiment, the solid bar 4 is provided with a connecting groove 8 for binding and hanging.
Specifically, the connecting groove 8 is arranged on the solid rod 4 and close to the conductive rod 3, the connecting groove 8 is mainly used for facilitating binding of the conductive wire, and has an anti-slip effect in the binding process, so that the binding is firmer. Meanwhile, the connecting groove 8 is formed in the solid rod, so that binding traces caused by binding of the conductive metal wires on the parts can be avoided, the defect that the parts are not locally coated is eliminated, the coating uniformity of the parts is improved, the surface quality of the parts is improved, and the rework cost is reduced.
In the use, the part cup joints in proper order from its hole and forms whole cluster of part outside hollow protection tube 1, and the part is established on conducting rod 3 as a whole cover with hollow protection tube 1, utilizes fixation nut 7 and threaded rod 6 to cooperate at the tip of conducting rod 3, fastens part and hollow protection tube 1, avoids rocking of part and hollow protection tube 1 in the electroplating process. And respectively fixing the conductive metal wire in the connecting grooves 8 on the threaded rod 6 and the solid rod 4, namely two ends of the whole conductive clamp, and then fixing the conductive metal wire on the conductive clamp for electroplating.
Example 2
On the basis of embodiment 1, as shown in fig. 1 to 3, the solid bar 4 is provided with a connecting groove 8 for binding and hanging.
Specifically, the connecting groove 8 is arranged on the solid rod 4 and close to the conductive rod 3, the connecting groove 8 is mainly used for facilitating binding of the conductive metal wire, and has an anti-skidding function in a binding process, so that binding is firmer.
Illustratively, as shown in FIG. 1, the coupling slot 8 is a keyway. The length of the solid bar 4 is typically 40mm, the length of the keyway 10mm and the depth 4mm. The key groove is an annular groove body on the solid rod 4, so that the conductive metal wire is conveniently sleeved, and the conductive metal wire is prevented from moving on the solid rod 4.
As yet another example, as shown in fig. 2, the attachment slot 8 may be threaded. One of the effects of solid bar 4 is electrically conductive, and sets up the screw thread on solid bar 4, and the conductive wire ligature also can avoid the removal of conductive wire on solid bar 4 on threaded solid bar 4 equally.
As yet another example, as shown in fig. 3, the attachment slot 8 may be a slip-resistant thread. The anti-slip pattern may be an existing conventional anti-slip pattern, avoiding movement of the conductive wire on the solid rod 4.
Example 3
The use method of the electroplating protection tool in the hole of the part with the hole comprises the following steps:
(1) Selecting a hollow protection tube 1 matched with the size of an inner hole of a part subjected to surface electroplating, cleaning the outer diameter of the hollow protection tube 1 by using an aviation cleaning agent, drying by using compressed air, and sequentially sleeving the part on the surface of the hollow protection tube 1 along a hollow protection tube shaft;
(2) Forming a whole series of parts on the conducting rod 3 by a plurality of parts, and fixing the hollow protection tube 1 by matching a fixing nut 7 with a threaded rod 6;
(3) One end of the conductive metal is bound in the connecting groove 8 of the clamping conductive connecting part 2, the other end of the conductive metal is connected with the electroplating clamp, the surface of the part is electroplated, and the part is not electroplated in the hole through the shielding of the hollow protection tube 1.
In the using process, the retainer ring and the fixing nut at the end part of the whole string of parts have the function of shielding current, so that the burning of the end part caused by overlarge local current can be avoided. In addition, the conducting rod penetrates through the whole string of parts, so that current can be guided, uniform current is generated around the whole string of parts, the surface coating of each part in the whole string of parts is uniform, and the electroplating quality of the surface of the part is greatly improved.
Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the invention. The appearances of the phrase in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. It is explicitly and implicitly understood by one skilled in the art that the embodiments described herein can be combined with other embodiments.
Finally, it should be noted that: the embodiment of the present invention is disclosed only as a preferred embodiment of the present invention, which is only used for illustrating the technical solutions of the present invention and not for limiting the same; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those skilled in the art; the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (9)
1. The utility model provides an downthehole electroplating protection frock of foraminiferous part which characterized in that: comprises the steps of (a) preparing a mixture of a plurality of raw materials,
the hollow protection tube is inserted into the part hole and is in contact with the inner wall of the part hole, and plays a role in shielding current on the inner wall of the part hole, and the hollow protection tube is made of stainless steel;
the conductive clamp comprises a clamping conductive connecting part, a conductive rod and a fastener, wherein the clamping conductive connecting part and the fastener are respectively connected to two ends of the conductive rod; the hollow protection tube is sleeved outside the conducting rod; the clamping conductive connecting portion comprises a solid rod and a check ring, the check ring is arranged between the clamping conductive connecting portion and the conductive rod and used for fixing the end portion of the part and the end portion of the hollow protection tube, and a connecting groove used for binding and hanging is formed in the solid rod.
2. The downthehole electroplating protection frock of foraminiferous part of claim 1, characterized in that: the hollow protection tube straight pipe, a plurality of parts are sleeved on the outer surface of the hollow protection tube along the hollow protection tube shaft in sequence to form a whole string of parts.
3. The downthehole electroplating protection frock of foraminiferous part of claim 2, characterized in that: the fastener includes threaded rod and fixation nut, the fixation nut cover is established the tip that is used for fixed part and hollow protection tube on the threaded rod.
4. The downthehole electroplating protection frock of foraminiferous part of claim 1, characterized in that: the connecting groove is any one of a key groove, a thread and an anti-skid thread.
5. The downthehole electroplating protection frock of foraminiferous part of claim 4, characterized in that: the connecting groove is arranged on the solid rod and close to the conducting rod.
6. The downthehole electroplating protection frock of foraminiferous part of claim 2, characterized in that: the two end parts of the hollow protection tube are in round angle smooth transition.
7. The downthehole electroplating protection frock of foraminiferous part of claim 3, characterized in that: the solid rod and the conducting rod are integrally formed, and the conducting rod and the threaded rod are integrally formed.
8. The downthehole electroplating protection frock of foraminiferous part of claim 1, characterized in that: the hollow protection tube is made of 1Cr18NiTi stainless steel.
9. The use method of the hole electroplating protection tool for the part with the hole as claimed in any one of claims 1 to 8 is characterized in that: the method comprises the following steps:
(1) Selecting a hollow protection tube matched with the size of an inner hole of a part subjected to surface electroplating, cleaning the outer diameter of the hollow protection tube by using an aviation cleaning agent, drying by using compressed air, and sleeving the part on the surface of the hollow protection tube;
(2) Forming a whole series of parts on the conducting rod by a plurality of parts, and fixing the hollow protection tube by matching a fixing nut and a screw rod;
(3) One end of the conductive metal is bound in a connecting groove of the clamping conductive connecting part, the other end of the conductive metal is connected with an electroplating clamp to electroplate the surface of the part, and the inner wall of the part hole is not electroplated for shielding the current through the hollow protection tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110745969.1A CN113463169B (en) | 2021-07-01 | 2021-07-01 | Hole electroplating protection tool for part with hole and using method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202110745969.1A CN113463169B (en) | 2021-07-01 | 2021-07-01 | Hole electroplating protection tool for part with hole and using method |
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| Publication Number | Publication Date |
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| CN113463169A CN113463169A (en) | 2021-10-01 |
| CN113463169B true CN113463169B (en) | 2022-11-18 |
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Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| US8110077B2 (en) * | 2008-03-06 | 2012-02-07 | Suzuki Motor Corporation | Sealing jig and plating treatment apparatus |
| CN204097588U (en) * | 2014-08-06 | 2015-01-14 | 无锡鹰贝精密轴承有限公司 | Internal expansion type is without the axial workpiece automation line electrodeposited chromium hanger that is threaded |
| CN110760909B (en) * | 2019-12-06 | 2021-03-23 | 隆鑫通用动力股份有限公司 | Universal tool for electroplating outside cylinder groove |
| CN111188077A (en) * | 2020-01-16 | 2020-05-22 | 陈远 | Clamp for nickel plating protection |
| CN212865041U (en) * | 2020-07-29 | 2021-04-02 | 山东鲁蓝环保科技有限公司 | Fixing tool for electroplating outer surface of radial spherical plain bearing |
| CN112376093A (en) * | 2020-11-20 | 2021-02-19 | 贵州新安航空机械有限责任公司 | Chemical nickel plating and electroplating protection tool for oil inlet filler neck |
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