CN111304713B - Surface chromium plating processing technology for metal piston ring production - Google Patents
Surface chromium plating processing technology for metal piston ring production Download PDFInfo
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- CN111304713B CN111304713B CN202010096037.4A CN202010096037A CN111304713B CN 111304713 B CN111304713 B CN 111304713B CN 202010096037 A CN202010096037 A CN 202010096037A CN 111304713 B CN111304713 B CN 111304713B
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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
- C25D7/04—Tubes; Rings; Hollow bodies
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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
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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
- C25D17/08—Supporting racks, i.e. not for suspending
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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
- C25D21/00—Processes for servicing or operating cells for electrolytic coating
- C25D21/10—Agitating of electrolytes; Moving of racks
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Abstract
The invention relates to a surface chromium plating processing technique for producing a metal piston ring, which adopts a piston ring surface chromium plating processing device, wherein the piston ring surface chromium plating processing device comprises a bottom plate, an electroplating pool, an immersion device, an electroplating hanger and a rotating mechanism, the immersion device comprises a rotating rod, an immersion motor, a bearing seat, a rotating disc and a fixed element, and the piston ring surface chromium plating processing technique adopting the piston ring surface chromium plating processing device comprises the following steps: s1, preparing electroplating; s2, mounting a hanger; s3, uniformly electroplating; and S4, circulating electroplating. The invention can complete continuous surface chromium plating in metal piston ring production, and solves the problems that the existing clamping tool can clamp and fix the piston ring, so that the surface of the clamping part of the piston ring can not complete electroplating operation during electroplating, electroplating dead corners exist, the electroplated layer on the surface of the piston ring is unevenly distributed, the quality of the piston ring product is influenced, and the like.
Description
Technical Field
The invention relates to the technical field of piston ring chromium plating, in particular to a surface chromium plating processing technology for producing a metal piston ring.
Background
The piston ring is used for imbedding the inside becket of piston slot, and the piston ring divide into two kinds: a compression ring and an oil ring. The compression ring can be used for sealing the combustible mixed gas in the combustion chamber; the oil ring is used to scrape off the excessive oil on the cylinder.
The piston ring is a metal elastic ring having a large outward expansion deformation, which is fitted into a ring groove having a cross section corresponding thereto. The reciprocating and rotating piston rings form a seal between the outer circumferential surface of the ring and the cylinder and one side of the ring and the ring groove by means of a pressure difference of gas or liquid. The piston ring is a core part inside the fuel engine, and it completes the sealing of fuel gas together with the cylinder, piston, cylinder wall, etc. The common automobile engines are diesel engines and gasoline engines, and the used piston rings are different due to different fuel properties, and the early piston rings are formed by casting, but with the technical progress, steel high-power piston rings are produced, and with the continuous improvement of the engine functions and environmental requirements, various advanced surface treatments are applied, such as thermal spraying, electroplating, chromium plating, gas nitriding, physical deposition, surface coating, zinc-manganese series phosphating and the like, so that the functions of the piston rings are greatly improved.
At the present stage, the chromium electroplating operation of the metal piston ring is divided into two modes of clamping electroplating and soaking electroplating; the problems with these two approaches are as follows:
1. the clamping electroplating is that a metal piston ring is clamped and fixed by a clamp manually and then is immersed in electroplating liquid, and when electroplating operation is carried out, because a clamping tool clamps and fixes the piston ring, the surface of the clamping part of the piston ring cannot finish electroplating operation during electroplating, electroplating dead corners exist, and the electroplated layer on the surface of the piston ring is unevenly distributed, so that the quality of the piston ring product is influenced;
2. soaking and electroplating means that the piston ring needing electroplating is put in an electroplating pool filled with electroplating solution manually, then electroplating operation is carried out, the piston ring can sink and fold and fall at the bottom of the electroplating pool in the mode, the electroplating mode is stacked, the surface of the piston ring can not be in thorough uniform contact with the electroplating solution, electroplating dead angles are formed easily due to uneven thickness of the electroplated layer of the piston ring, the electroplating effect is poor, and after electroplating is completed, centralized collection is not convenient.
Disclosure of Invention
In order to solve the problems, the invention provides a surface chromium plating processing technology for producing a metal piston ring, which adopts a piston ring surface chromium plating processing device, wherein the piston ring surface chromium plating processing device comprises a bottom plate, an electroplating pool, a liquid immersion device, electroplating hangers and a rotating mechanism, the electroplating pool is arranged on the middle part of the top end of the bottom plate, the front side surface and the rear side surface of the electroplating pool are in an inclined opening shape, the liquid immersion device is transversely arranged above the electroplating pool, two ends of the liquid immersion device are arranged on the top surface of the bottom plate, the middle part of the liquid immersion device is uniformly provided with four electroplating hangers along the circumferential direction, the liquid immersion device is transversely arranged, the electroplating hangers are arranged on the side surface of the middle part of the liquid immersion device, the rotating mechanism is symmetrically arranged on the left side and the right side of the electroplating pool, and the bottom of the rotating mechanism is arranged on the top surface of the bottom plate.
The immersion fluid device comprises a rotating rod, an immersion fluid motor, a bearing seat, a rotating disc and fixed elements, wherein the rotating rod is transversely arranged above the top end of the bottom plate, two ends of the rotating rod are arranged on the top end of the bottom plate through the bearing seat, the immersion fluid motor is positioned on the outer side of the bearing seat, the immersion fluid motor is arranged on the side surface of the bearing seat through a motor seat, an output shaft of the immersion fluid motor penetrates through the bearing seat and is connected with the end head of the rotating rod through a coupler, the rotating disc is arranged in the middle of the rotating rod at uniform and equal intervals, four fixed elements are uniformly arranged on the side surface of each rotating disc along the circumferential equipotential direction of the side surface of the rotating disc, each electroplating hanger is fixed on the outer side surface of the rotating disc through a plurality of equipotential fixed elements, during specific work, the immersion fluid device can drive the electroplating hangers to rotate at circulating intervals, so as to complete the batch continuous chromium electroplating of metal piston rings by matching with the electroplating pool, one electroplating hanger is fixed on the top end of the rotating disc through the fixed elements, after the fixing of an end electroplating hanger is finished, the rotating rod is driven to rotate through the immersion motor, so that the rotating disc rotates ninety degrees, the operations are sequentially repeated, the fixed installation of four electroplating hangers is finished, after the electroplating hanger is fixed, the electroplating hanger at the lower end of the rotating disc is immersed into electroplating liquid in an electroplating pool, the electroplating hanger is matched with the rotating mechanism to finish the electroplating operation of a piston ring in the electroplating pool, after the electroplating of the piston ring hung on the electroplating hanger at the lower end of the rotating disc is finished, the rotating disc is driven to rotate ninety degrees through the immersion motor, so that the electroplating hanger which is not electroplated is immersed into the electroplating liquid, the electroplating operation is repeated, when the electroplating hanger which is finished to be electroplated is rotated to the upper end of the rotating disc, the fixed element is manually unlocked with the fixed element, the electroplating hanger which is finished to be electroplated is taken down, the electroplated piston ring is collected, and meanwhile, the electroplating hanger which is hung with the electroplated piston ring is arranged on the top end of the rotating disc, and finishing the circulating electroplating process.
The piston ring production surface chromium plating processing technology comprises the following steps:
s1, electroplating preparation: firstly, uniformly hanging metal piston rings required to be electroplated with chromium on the middle parts of four electroplating hangers, and then preparing electroplating solution required to be electroplated in an electroplating pool;
s2, mounting a hanger: after the metal piston ring is hung on the electroplating hanger, one electroplating hanger is fixed on the top end of the rotary disc through the fixing element, after one end electroplating hanger is fixed, the rotary disc is driven to rotate through the immersion fluid motor, the rotary disc is rotated ninety degrees, the operations are sequentially repeated, and the fixed installation of four electroplating hangers is completed;
s3, uniform electroplating: after the electroplating hanger is fixed, the electroplating hanger at the lower end of the rotating disc is immersed into electroplating liquid in an electroplating pool, then the inner end of the rotating mechanism is controlled to be connected with the end heads at two sides of the electroplating hanger, so that the rotating mechanism drives the electroplating hanger in the electroplating liquid to rotate, and then the hung metal piston ring rotates irregularly due to the special structure of the electroplating hanger, so that the phenomenon that the contact point of the metal piston ring and the electroplating hanger is fixed all the time, electroplating dead angles occur to the metal piston ring, and the electroplating effect of the metal piston ring is influenced is avoided;
s4, cyclic electroplating: after a period of time in the electroplating solution at the electroplating hanger of rolling disc lower extreme, accomplish the electroplating operation, remove slewing mechanism and electroplating hanger and be connected, drive the rolling disc through immersion fluid motor and rotate ninety degrees for the electroplating hanger who does not carry out the electroplating is in the electroplating solution, repeat above-mentioned electroplating operation, when the electroplating hanger who has accomplished the electroplating rotates to the rolling disc upper end, the manual work is rather than removing the locking with fixed element, the electroplating hanger who will accomplish the electroplating takes off, carry out the collection of electroplated piston ring, change simultaneously and carry the electroplating hanger of not electroplating piston ring to the rolling disc top, accomplish circulation electroplating process.
As a preferred technical scheme, the fixing element comprises a connecting block, a bearing base, a fixing pin shaft, a turnover retaining ring and a locking bolt, the bearing base is located above the side face of the rotating disc, the bottom of the bearing base is connected with the side face of the rotating disc through the connecting block, the turnover retaining ring is located above the bearing base, the turnover retaining ring and the bearing base are of arc structures, the right ends of the bearing base and the turnover retaining ring are connected through the fixing pin shaft, and the left ends of the bearing base and the turnover retaining ring are connected together in a locking mode through the locking bolt.
As a preferred technical scheme of the invention, the fixing element further comprises a rotating ball, arc-shaped grooves are formed in the inner walls of the middle parts of the bearing base and the fixing pin shaft along the circumferential direction of the inner walls, the rotating ball is uniformly arranged in the arc-shaped grooves of the bearing base and the fixing pin shaft, and the rotating ball can facilitate the hanging rod to rotate and slide in the left-right direction under the fixation of the fixing element.
As a preferred technical scheme of the invention, the electroplating hanger comprises hanging rods, limiting blocking pieces and rotating end heads, wherein the middle part of each hanging rod is fixed on the outer side of the side surface of a rotating disc through a plurality of fixing elements, the middle part of each hanging rod is positioned between a supporting base and an overturning buckle ring, the contact side surfaces of the hanging rods and the fixing elements are attached to a rotating ball, a group of limiting blocking pieces are respectively arranged on the left side and the right side of each rotating disc, the limiting blocking pieces are arranged on the side surfaces of the hanging rods, the rotating end heads are symmetrically arranged on two end surfaces of the hanging rods, gear grooves are uniformly arranged in the middle parts of the side surfaces of the rotating end heads along the circumferential direction of the rotating end heads, and during specific work, the fixing elements can fix the electroplating hanger with batch piston rings, so that continuous electroplating of batch piston rings is completed under the driving of a liquid immersion device, firstly, the piston rings are uniformly hung on the hanging rods, then locking bolts are screwed out, the left ends of the bearing base and the overturning buckle are disconnected, the overturning buckle is overturned through a fixed pin shaft, the position between the limiting blocking pieces on the hanging rod is placed on the bearing base, and then the left ends of the bearing base and the overturning buckle are locked again through the fixed pin shaft, so that the electroplating hanger is fixed.
As a preferred technical scheme of the present invention, the hanging rod is uniformly provided with arc-shaped grooves formed along the circumferential direction of the hanging rod, the diameter of the hanging rod in each arc-shaped groove is smaller than the diameter of the metal piston ring, the diameter of the hanging rod in each arc-shaped groove is larger than the diameter of the opening of the metal piston ring, and the diameter of each arc-shaped groove is larger than the thickness of the metal piston ring.
As a preferred technical scheme of the invention, the electroplating hanger further comprises a rotating lug, the side surface of the lower end of each arc-shaped groove of the hanging rod is provided with a rotating lug, the rotating lug is an arc-shaped convex block, and the size of the end head of the rotating lug is larger than the opening diameter of a metal piston ring.
As a preferred technical scheme of the invention, the distance between the limiting blocking piece and the fixing element is slightly larger than the inner diameter length of the arc-shaped groove of the hanging rod, and the limiting blocking piece can play a limiting role when the rotating mechanism drives the hanging rod to carry out short-distance reciprocating movement in the left-right direction, so that the practicability of the invention is improved.
As a preferred technical scheme of the invention, the rotating mechanism comprises a positioning electric sliding table, a positioning electric sliding block, a clamping push rod, an installation block, a driving rod, a rotating gear and a rotating motor, wherein the positioning electric sliding table is symmetrically arranged at the left side and the right side of the electroplating pool;
as a preferred technical scheme of the invention, an output shaft of a rotating motor passes through a mounting block to be connected with a driving rod, when the device works, a rotating mechanism can drive an electroplating hanger in an electroplating pool to rotate slowly to drive a metal piston ring to rotate irregularly, so that a hanging contact surface of the metal piston ring is not a fixed part, all parts of the metal piston ring can be in thorough contact with electroplating solution, the phenomenon of electroplating dead angles is avoided, the product quality of the metal piston ring is improved, meanwhile, the rotating mechanism can drive the electroplating hanger to perform short-distance reciprocating movement in the left-right direction, so that the metal piston ring performs small-range reciprocating left-right movement in an arc groove of the hanging rod, the side surface of the metal piston ring is prevented from being attached to the side wall of the arc groove, and the surface of the metal piston ring can be in uniform and equal-length contact with the electroplating solution, and then make the plating layer thickness of piston ring even, the electroplating effect of the invention has been promoted, and then the product quality of piston ring has been improved, drive the gear wheel through location electric slider and be in directly over the gear groove of rotation end, then the joint push rod drives gear wheel and carries out the downstream, make gear wheel joint meshing in the gear groove of rotation end, later rotate the motor and drive gear wheel through the actuating lever and rotate, make peg and rotation lug cooperation rotate and drive the piston ring of hanging on the peg and carry out irregular rotation, cooperate through the electronic slider of location of the left and right sides of electroplating bath simultaneously, make the electroplating hanger carry out the short distance reciprocating motion of left and right directions.
The invention has the beneficial effects that:
the invention can complete continuous surface chromium plating of metal piston ring production, adopts an intermittent rotation electroplating mode, and solves the problem of low electroplating work efficiency of the existing piston ring;
the electroplating rack is provided with the electroplating rack, the piston ring hung on the hanging rod can be driven to irregularly rotate by the matched rotation of the rotating lug on the electroplating rack and the hanging rod, so that the hanging contact surface of the piston ring and the side surface of the hanging rod is not a fixed area, all parts of the metal piston ring can thoroughly contact with electroplating solution, the electroplating effect of the electroplating rack is improved, the electroplating dead angle of the inner wall of the piston ring is avoided, the electroplating effect of the piston ring is influenced, and the product quality is further reduced;
the electroplating hanging tool is provided with the rotating electric mechanism, the rotating mechanism can drive the electroplating hanging tool to perform short-distance reciprocating movement in the left-right direction, so that the metal piston ring performs reciprocating movement in a small range in the arc-shaped groove of the hanging rod, the side face of the metal piston ring is prevented from being attached to the side wall of the arc-shaped groove, the surface of the metal piston ring can be uniformly contacted with electroplating solution for a long time, the thickness of an electroplated layer of the piston ring is uniform, the electroplating effect of the electroplating hanging tool is improved, and the product quality of the piston ring is improved.
Drawings
The invention is further illustrated with reference to the following figures and examples.
FIG. 1 is a schematic view of a first configuration of the present invention;
FIG. 2 is a second schematic structural view of the present invention;
FIG. 3 is a partial cross-sectional view of the immersion apparatus of the present invention;
FIG. 4 is a schematic view of the structure between the rotating mechanism and the immersion device according to the present invention;
FIG. 5 is a schematic structural view of a fixing member of the present invention;
fig. 6 is a partial cross-sectional view of a plating hanger of the present invention.
Detailed Description
In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further explained below by combining the specific drawings. It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict.
As shown in figures 1 to 6, the surface chromium plating processing technique for producing the metal piston ring adopts the following piston ring surface chromium plating processing device, the piston ring surface chromium plating processing device comprises a bottom plate 1, an electroplating pool 2, a liquid immersion device 3, an electroplating hanger 4 and a rotating mechanism 5, electroplating bath 2 install on the top middle part of bottom plate 1, the preceding back both sides face of electroplating bath 2 is the slope opening form, immersion fluid device 3 transverse arrangement is in electroplating bath 2's top, the both ends of immersion fluid device 3 are installed on the top surface of bottom plate 1, immersion fluid device 3's middle part evenly is provided with four electroplating hangers 4 along its circumference, immersion fluid device 3 is transverse arrangement, electroplating hanger 4 installs the middle part side at immersion fluid device 3, slewing mechanism 7 symmetrical arrangement is in electroplating bath 2's the left and right sides, slewing mechanism 7's bottom is installed on the top surface of bottom plate 1.
The immersion device 3 comprises a rotating rod 31, an immersion motor 32, a bearing seat 33, a rotating disc 34 and fixed elements 35, the rotating rod 31 is transversely arranged above the top end of the bottom plate 1, two ends of the rotating rod 31 are arranged on the top end of the bottom plate 1 through the bearing seats 33, the immersion motor 32 is positioned on the outer side of the bearing seats 33, the immersion motor 32 is arranged on the side surface of the bearing seats 33 through a motor base, an output shaft of the immersion motor 32 penetrates through the bearing seats 33 to be connected with the end head of the rotating rod 31 through a coupler, the rotating disc 34 is uniformly arranged in the middle of the rotating rod 31 at equal intervals, four fixed elements 35 are uniformly arranged on the side surface of each rotating disc 34 along the circumferential equipotential direction of the rotating disc, each electroplating hanger 4 is fixed on the outer side surface of the rotating disc 34 through a plurality of equipotential fixed elements 35, during specific work, the immersion device 3 can drive the electroplating hangers 4 to rotate at circulating intervals, thereby completing the continuous chromium electroplating of the metal piston rings in batch in cooperation with the electroplating tank 2, fixing an electroplating hanger 4 on the top end of a rotating disc 34 through a fixing element 35, after fixing an end electroplating hanger 4, driving a rotating rod 31 to rotate through an immersion motor 32, enabling the rotating disc 34 to rotate ninety degrees, repeating the operations in sequence, completing the fixed installation of four electroplating hangers 4, after fixing the electroplating hanger 4, immersing the electroplating hanger 4 at the lower end of the rotating disc 34 into the electroplating solution in the electroplating tank 2, completing the electroplating operation of the piston rings in the electroplating tank through the immersion motor 32 in cooperation with a rotating mechanism 5, after completing the electroplating of the piston rings hung on the electroplating hanger 4 at the lower end of the rotating disc 34, driving the rotating disc 34 to rotate ninety degrees through the immersion motor 32, enabling the electroplating hanger 4 which is not electroplated to be immersed into the electroplating solution, repeating the electroplating operation, when the electroplated electroplating hanger 4 rotates to the upper end of the rotating disc 34, the fixing element 35 is unlocked manually, the electroplating hanger 4 which finishes electroplating is taken down, the electroplated piston ring is collected, and meanwhile, the electroplating hanger 4 which is hung with the non-electroplated piston ring is replaced to the top end of the rotating disc 34, and the circular electroplating process is finished.
The piston ring production surface chromium plating processing technology comprises the following steps:
s1, electroplating preparation: firstly, uniformly hanging metal piston rings required to be electroplated with chromium on the middle parts of four electroplating hangers 4, and then preparing electroplating solution required to be electroplated in an electroplating pool 2;
s2, mounting a hanger: after the metal piston ring is hung on the electroplating hanger 4, one electroplating hanger 4 is fixed on the top end of the rotating disc 34 through the fixing element 35, after the end electroplating hanger 4 is fixed, the rotating disc 31 is driven to rotate through the immersion motor 32, so that the rotating disc 34 rotates ninety degrees, the operations are sequentially repeated, and the fixed installation of the four electroplating hangers 4 is completed;
s3, uniform electroplating: after the electroplating hanger 4 is fixed, the electroplating hanger 4 at the lower end of the rotating disc 34 is immersed into electroplating solution in the electroplating pool 2, then the inner end of the rotating mechanism 5 is controlled to be connected with the end heads at two sides of the electroplating hanger 4, so that the rotating mechanism 5 drives the electroplating hanger 4 in the electroplating solution to rotate, and then the metal piston ring hung on the electroplating hanger 4 rotates irregularly due to the special structure of the electroplating hanger 4, thereby avoiding that the contact point of the metal piston ring and the electroplating hanger 4 is always fixed, so that the metal piston ring has electroplating dead corners and the electroplating effect of the metal piston ring is influenced;
s4, cyclic electroplating: after the electroplating hanger 4 at the lower end of the rotating disc 34 is in the electroplating solution for a period of time, the electroplating operation is completed, the rotating mechanism 5 and the electroplating hanger 4 are disconnected, the rotating disc 34 is driven to rotate by ninety degrees through the immersion motor 32, the electroplating hanger 4 which is not electroplated is immersed in the electroplating solution, the electroplating operation is repeated, when the electroplating hanger 4 which is electroplated is rotated to the upper end of the rotating disc 34, the fixing element 35 is manually unlocked, the electroplating hanger 4 which is electroplated is taken down, the electroplated piston ring is collected, meanwhile, the electroplating hanger 4 which is hung with the electroplated piston ring is replaced to the top end of the rotating disc 34, and the circular electroplating process is completed.
The fixing element 35 comprises a connecting block 351, a bearing base 352, a fixing pin 353, a turnover retaining ring 354 and a locking bolt 355, wherein the bearing base 352 is located above the side face of the rotating disc 34, the bottom of the bearing base 352 is connected with the side face of the rotating disc 34 through the connecting block 351, the turnover retaining ring 354 is located above the bearing base 352, the turnover retaining ring 354 and the bearing base 352 are of arc-shaped structures, the right ends of the bearing base 352 and the turnover retaining ring 354 are connected through the fixing pin 353, and the left ends of the bearing base 352 and the turnover retaining ring 354 are connected together in a locking mode through the locking bolt 355.
Fixing element 35 still including rotating ball 356, the arc wall has all been seted up along its circumference to the middle part inner wall of bearing base 352, fixed pin 353, all evenly installs rotating ball 356 in the arc wall of bearing base 352, fixed pin 353, rotating ball 356 can be convenient for peg 41 still can rotate and the slip of left and right sides direction under fixing element 35 is fixed.
The electroplating hanger 4 comprises a hanging rod 41, limiting blocking pieces 42 and a rotating end 43, the middle part of each hanging rod 41 is fixed on the outer side of the side surface of the rotating disc 34 through a plurality of fixing elements 35, the middle part of each hanging rod 41 is positioned between a bearing base 352 and an overturning buckle ring 354, the contact side surfaces of the hanging rod 41 and the fixing elements 35 are attached to a rotating ball 356, the left side and the right side of each rotating disc 34 are respectively provided with a group of limiting blocking pieces 42, the limiting blocking pieces 42 are arranged on the side surfaces of the hanging rods 41, the rotating end 43 is symmetrically arranged on two end surfaces of the hanging rods 41, the middle part of the side surface of each rotating end 43 is uniformly provided with gear grooves along the circumferential direction, during specific work, the fixing elements 35 can fix the electroplating hanger 4 on which batch piston rings are hung, so that continuous electroplating of batch piston rings is completed under the driving of the piston ring immersion device 3, firstly, the batch piston rings are uniformly hung on the hanging rods 41, then, the locking bolt 355 is screwed out, the connection between the left ends of the support base 352 and the turning retaining ring 354 is released, the turning retaining ring 354 is turned up through the fixing pin 353, the part between the limiting blocking pieces 42 on the hanging rod 41 is placed on the support base 352, and then the left ends of the support base 352 and the turning retaining ring 354 are locked again through the fixing pin 353, so that the electroplating hanger 4 is fixed.
The electroplating hanger 4 further comprises a rotating lug 44, the lower end side of each arc groove of the hanging rod 41 is provided with the rotating lug 44, the rotating lug 44 is an arc-shaped protruding block, the size of the end head of the rotating lug 44 is larger than the opening diameter of a metal piston ring, when the electroplating hanger works specifically, the rotating mechanism 5 can drive the hanging rod 41 to rotate, the piston ring hung on the hanging rod 41 can be driven to randomly rotate by the matching rotation of the rotating lug 44 and the hanging rod 41, so that the hanging contact surface between the piston ring and the side surface of the hanging rod 41 is not a fixed area, all parts of the metal piston ring can be thoroughly contacted with electroplating solution, the electroplating effect of the electroplating hanger is improved, the electroplating dead angle of the inner wall of the piston ring is avoided, the electroplating effect of the piston ring is influenced, and the product quality is reduced.
The distance between the limiting blocking piece 42 and the fixing element 35 is slightly larger than the length of the inner diameter of the arc-shaped groove of the hanging rod 41, the limiting blocking piece 42 can play a limiting role when the rotating mechanism 5 drives the hanging rod 41 to carry out short-distance reciprocating movement in the left-right direction, and the practicability of the invention is improved.
The rotating mechanism 5 comprises a positioning electric sliding table 51, a positioning electric sliding block 52, a clamping push rod 53, an installation block 54, a driving rod 55, a rotating gear 56 and a rotating motor 57, wherein the positioning electric sliding table 51 is symmetrically arranged at the left side and the right side of the electroplating pool 2, the bottom of the positioning electric sliding table 51 is installed at the top end of the bottom plate 1, the positioning electric sliding block 52 is installed on the positioning electric sliding table 51 in a sliding fit manner, the clamping push rod 53 is installed at the top end of the positioning electric sliding block 52, the installation block 54 is installed on the top surface of the clamping push rod 53, the rotating gear 56 is positioned above a rotating end 43 at the lower side of the rotating disc 34, the rotating gear 56 is connected with the installation block 54 through the driving rod 55, the rotating motor 57 is positioned at the outer side of the installation block 54, and the rotating motor 57 is installed on the side surface of the installation block 54 through a motor sleeve;
the output shaft of the rotating motor 57 penetrates through the mounting block 54 to be connected with the driving rod 55, when the electroplating device works, the rotating mechanism 5 can drive the electroplating hanger 4 in the electroplating pool to rotate slowly to drive the metal piston ring to rotate irregularly, so that the hanging contact surface of the metal piston ring is not a fixed part, each part of the metal piston ring can be in thorough contact with electroplating solution, the phenomenon of electroplating dead angle is avoided, the product quality of the metal piston ring is improved, meanwhile, the rotating mechanism 5 can drive the electroplating hanger 4 to perform short-distance reciprocating movement in the left-right direction, so that the metal piston ring performs small-range reciprocating left-right movement in the arc groove of the hanging rod 1, the side surface of the metal piston ring is prevented from being attached to the side wall of the arc groove, the surface of the metal piston ring can be in contact with the electroplating solution for a uniform and equal time, and the thickness of the electroplated layer of the piston ring is uniform, the electroplating effect of the invention is improved, the product quality of the piston ring is further improved, the positioning electric slide block 52 drives the rotating gear 56 to be positioned right above the gear groove of the rotating end 43, then the clamping push rod 53 drives the rotating gear 56 to move downwards, so that the rotating gear 56 is clamped and meshed in the gear groove of the rotating end 43, then the rotating motor 57 drives the rotating gear 56 to rotate through the driving rod 55, so that the hanging rod 41 and the rotating lug 44 are matched to rotate to drive the piston ring hung on the hanging rod 41 to rotate irregularly, and meanwhile, the positioning electric slide blocks 52 on the left side and the right side of the electroplating pool 2 are matched to enable the electroplating hanger 4 to perform short-distance reciprocating movement in the left-right direction.
The invention can complete continuous surface chromium plating of metal piston ring production, adopts an intermittent rotation electroplating mode, solves the problem of low electroplating work efficiency of the existing piston ring, adopts the irregular rotating rod to fix the piston ring in batches, and after the piston ring is immersed in electroplating solution, the irregular rotating rod drives the piston ring to irregularly rotate, thereby avoiding that the contact point of the metal piston ring and an electroplating hanger is always fixed, causing the electroplating dead angle of the metal piston ring to affect the electroplating effect of the metal piston ring, leading each part of the metal piston ring to be uniformly and thoroughly contacted with the electroplating solution, further leading the surface of the piston ring to be free of the electroplating dead angle and the coating thickness to be uniform, and greatly improving the product quality of the piston ring.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (8)
1. The utility model provides a metal piston ring production surface chromium plating processing technology, this piston ring production surface chromium plating processing technology adopts following piston ring surface chromium plating processingequipment, and this piston ring surface chromium plating processingequipment includes bottom plate (1), electroplates pond (2), immersion fluid device (3), electroplates hanger (4), slewing mechanism (5), its characterized in that: the electroplating device is characterized in that the electroplating pool (2) is arranged on the middle part of the top end of the bottom plate (1), the front side surface and the rear side surface of the electroplating pool (2) are in an inclined opening shape, the immersion device (3) is transversely arranged above the electroplating pool (2), two ends of the immersion device (3) are arranged on the top surface of the bottom plate (1), four electroplating hangers (4) are uniformly arranged in the middle of the immersion device (3) along the circumferential direction of the immersion device, the immersion device (3) is transversely arranged, the electroplating hangers (4) are arranged on the side surface of the middle of the immersion device (3), the rotating mechanisms (7) are symmetrically arranged on the left side and the right side of the electroplating pool (2), and the bottoms of the rotating mechanisms (7) are arranged on the top surface of the bottom plate (1);
the immersion device (3) comprises a rotating rod (31), an immersion motor (32), a bearing seat (33), a rotating disc (34) and a fixed element (35), the electroplating hanger is characterized in that the rotating rod (31) is transversely arranged above the top end of the base plate (1), two ends of the rotating rod (31) are installed on the top end of the base plate (1) through a bearing seat (33), the immersion motor (32) is located on the outer side of the bearing seat (33), the immersion motor (32) is installed on the side face of the bearing seat (33) through a motor base, an output shaft of the immersion motor (32) penetrates through the bearing seat (33) and is connected with the end of the rotating rod (31) through a coupler, rotating discs (34) are evenly installed in the middle of the rotating rod (31) at equal intervals, four fixing elements (35) are evenly installed on the side face of each rotating disc (34) along the circumferential direction in an equipotential mode, and each electroplating hanger (4) is fixed on the outer side face of each rotating disc (34) through a plurality of equipotential fixing elements (35);
the piston ring production surface chromium plating processing technology comprises the following steps:
s1, electroplating preparation: firstly, uniformly hanging metal piston rings required to be electroplated with chromium on the middle parts of four electroplating hangers (4), and then preparing electroplating solution required to be electroplated in an electroplating pool (2);
s2, mounting a hanger: after the metal piston ring is hung on the electroplating hanger (4), one electroplating hanger (4) is fixed on the top end of a rotating disc (34) through a fixing element (35), after the end electroplating hanger (4) is fixed, a rotating rod (31) is driven to rotate through an immersion liquid motor (32), the rotating disc (34) is made to rotate ninety degrees, the operations are sequentially repeated, and the four electroplating hangers (4) are fixedly installed;
s3, uniform electroplating: after the electroplating hanger (4) is fixed, the electroplating hanger (4) at the lower end of the rotating disc (34) is immersed into electroplating liquid in the electroplating pool (2), then the inner end of the rotating mechanism (5) is controlled to be connected with the end heads at two sides of the electroplating hanger (4), so that the rotating mechanism (5) drives the electroplating hanger (4) in the electroplating liquid to rotate, and then the hung metal piston ring rotates irregularly due to the special structure of the electroplating hanger (4), thereby avoiding that the contact point of the metal piston ring and the electroplating hanger (4) is always fixed, causing the metal piston ring to have electroplating dead angle and affecting the electroplating effect of the metal piston ring;
s4, cyclic electroplating: after electroplating hanger (4) at the lower end of rotating disc (34) is in the electroplating solution for a period of time, the electroplating operation is completed, rotating mechanism (5) and electroplating hanger (4) are disconnected, rotating disc (34) is driven to rotate ninety degrees through immersion motor (32), electroplating hanger (4) which is not electroplated is immersed in the electroplating solution, the electroplating operation is repeated, when electroplating hanger (4) which is electroplated is rotated to the upper end of rotating disc (34), fixing element (35) is unlocked manually, electroplating hanger (4) which is electroplated is taken down, the electroplated piston ring is taken up, meanwhile, electroplating hanger (4) which is hung with the electroplated piston ring is replaced to the top end of rotating disc (34), and the circular electroplating process is completed.
2. The surface chromium plating processing technique for producing metal piston rings as claimed in claim 1, characterized in that: the fixing element (35) comprises a connecting block (351), a bearing base (352), a fixing pin shaft (353), a turnover retaining ring (354) and a locking bolt (355), wherein the bearing base (352) is located above the side face of the rotating disc (34), the bottom of the bearing base (352) is connected with the side face of the rotating disc (34) through the connecting block (351), the turnover retaining ring (354) is located above the bearing base (352), the turnover retaining ring (354) and the bearing base (352) are of arc-shaped structures, the bearing base (352) and the right end of the turnover retaining ring (354) are connected through the fixing pin shaft (353), and the bearing base (352) and the left end of the turnover retaining ring (354) are connected together in a locking mode through the locking bolt (355).
3. The surface chromium plating processing technique for producing metal piston rings as claimed in claim 2, characterized in that: the fixing element (35) further comprises a rotating ball (356), arc-shaped grooves are formed in the inner walls of the middle portions of the bearing base (352) and the fixing pin shaft (353) along the circumferential direction of the inner walls, and the rotating ball (356) is uniformly arranged in the arc-shaped grooves of the bearing base (352) and the fixing pin shaft (353).
4. The surface chromium plating processing technique for producing metal piston rings as claimed in claim 1, characterized in that: electroplating hanger (4) including peg (41), spacing separation blade (42), rotation end (43), the side outside at rolling disc (34) is all fixed through a plurality of fixed component (35) in the middle part of every peg (41), the middle part of peg (41) is located bearing base (352), between upset buckle (354), the contact side laminating of peg (41) and fixed component (35) is on rotating ball (356), all respectively be provided with a set of spacing separation blade (42) in the left and right sides of every rolling disc (34), spacing separation blade (42) are installed on the side of peg (41), rotation end (43) symmetry is installed on the both ends face of peg (41), the gear groove has evenly been seted up along its circumference in the side middle part of rotation end (43).
5. The surface chromium plating processing technique for producing metal piston rings as claimed in claim 4, characterized in that: the hanging rod (41) is evenly provided with arc-shaped grooves which are formed along the circumferential direction of the hanging rod, the diameter of the hanging rod (41) in each arc-shaped groove is smaller than that of the metal piston ring, the diameter of the hanging rod (41) in each arc-shaped groove is larger than the opening diameter of the metal piston ring, and the groove diameter of each arc-shaped groove is larger than the thickness of the metal piston ring.
6. The surface chromium plating processing technique for producing metal piston rings as claimed in claim 5, characterized in that: the electroplating hanger (4) further comprises a rotating lug (44), the side face of the lower end of each arc-shaped groove of the hanging rod (41) is provided with the rotating lug (44), the rotating lug (44) is an arc-shaped protruding block, and the size of the end head of the rotating lug is larger than the opening diameter of the metal piston ring.
7. The surface chromium plating processing technique for producing metal piston rings as claimed in claim 4, characterized in that: the distance between the limiting stop piece (42) and the fixing element (35) is slightly larger than the length of the inner diameter of the arc-shaped groove of the hanging rod (41).
8. The surface chromium plating processing technique for producing metal piston rings as claimed in claim 1, characterized in that: the rotating mechanism (5) comprises a positioning electric sliding table (51), a positioning electric sliding block (52), a clamping push rod (53), an installation block (54), a driving rod (55), a rotating gear (56) and a rotating motor (57), wherein the positioning electric sliding table (51) is symmetrically arranged at the left side and the right side of the electroplating pool (2), the bottom of the positioning electric sliding table (51) is installed on the top end of the bottom plate (1), the positioning electric sliding block (52) is installed on the positioning electric sliding table (51) in a sliding fit manner, the clamping push rod (53) is installed on the top end of the positioning electric sliding block (52), the installation block (54) is installed on the top surface of the clamping push rod (53), the rotating gear (56) is positioned above a rotating end (43) at the lower side of the rotating disc (34), the rotating gear (56) is connected with the installation block (54) through the driving rod (55), and the rotating motor (57) is positioned at the outer side of the installation block (54), the rotating motor (57) is arranged on the side surface of the mounting block (54) through a motor sleeve, and an output shaft of the rotating motor (57) penetrates through the mounting block (54) to be connected with the driving rod (55).
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| CN202010096037.4A CN111304713B (en) | 2020-02-17 | 2020-02-17 | Surface chromium plating processing technology for metal piston ring production |
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| CN202010096037.4A CN111304713B (en) | 2020-02-17 | 2020-02-17 | Surface chromium plating processing technology for metal piston ring production |
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| CN111304713B true CN111304713B (en) | 2021-09-24 |
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| CN112144092B (en) * | 2020-09-21 | 2021-08-24 | 顶群科技(深圳)有限公司 | Rectifier accessory electroplating device |
| CN112725593B (en) * | 2020-12-26 | 2022-08-09 | 冠有科技集团有限公司 | Heat treatment process for piston ring of air compressor |
| CN113858055B (en) * | 2021-08-18 | 2024-01-23 | 姜义胜 | Air pressure pump piston ring production line group for weak current engineering |
| CN115637482B (en) * | 2022-12-26 | 2023-03-10 | 山东明宇重工机械有限公司 | Loader round pin axle processing automatic cladding device that prevents rust |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| DE3902057A1 (en) * | 1989-01-25 | 1990-07-26 | Goetze Ag | Appliance for electroplating annular workpieces |
| JP2001073198A (en) * | 1999-07-01 | 2001-03-21 | Sumitomo Special Metals Co Ltd | Device for electroplating and electroplating method using this device |
| CN109482434B (en) * | 2017-08-20 | 2020-08-21 | 福建省长汀金龙稀土有限公司 | Hanging tool for surface treatment process and surface treatment method |
| CN207775379U (en) * | 2017-11-13 | 2018-08-28 | 北京相模金属有限公司 | A kind of electroplanting device of rotation rack plating |
| CN112272717B (en) * | 2018-04-27 | 2024-01-05 | 莫杜美拓有限公司 | Apparatus, system, and method for producing multiple articles with nanolaminate coatings using rotation |
| CN208395301U (en) * | 2018-06-13 | 2019-01-18 | 长沙华成换热设备有限公司 | A kind of turnover fixture and plating Diamond Equipment for plating Diamond Equipment |
| CN109628972B (en) * | 2018-12-27 | 2020-09-15 | 中国电子科技集团公司第二研究所 | Automatic feeding, discharging and storing mechanism of piston ring electroplating production line |
| CN210030920U (en) * | 2019-01-14 | 2020-02-07 | 四川九洲电器集团有限责任公司 | Local electroplating device for pipe plated part |
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