Universal liquid supply system for automatic electroplating of cylinder hole

Abstract

The utility model discloses a universal liquid supply system for automatic electroplating of a cylinder hole, which comprises liquid supply seats for introducing electroplating liquid to form circulating electroplating, and when in use, the liquid supply seats are freely placed at corresponding set stations, so that the positions are adjustable, and a combinable state is formed between the liquid supply seats; when in use, the electroplating structure not only has all the advantages of circulating electroplating outside the tank, but also has complete universality due to the fact that the position can be flexibly arranged and the electroplating structure can adapt to the electroplating process of cylinder holes of one-cylinder to multi-cylinder engines, the electroplating of different cylinder holes does not need to be replaced, and the electroplating structure is simple in structure, convenient to use and low in cost. Therefore, the working efficiency is improved and the working cost is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to a kind of cylinder body electroplating device parts, in particular to the general type liquid supply system for automatic electroplating of cylinder hole. BACKGROUND

[0002] The anti-wear layer is formed by electroplating in the engine cylinder block to ensure the wear resistance of the cylinder hole. In the prior art, the electroplating methods basically include in-tank electroplating and out-of-tank circulating electroplating. Compared with in-tank electroplating, the out-of-tank circulating electroplating process has a flowing electroplating environment, which ensures that the cations on the plating layer are replaced in real time, have no difference in concentration and stable uniformity in flow, and ensure the compactness of the plating layer, thereby ensuring the electroplating quality.

[0003] However, in the existing out-of-tank electroplating structure, the outer dimensions of the cylinder block (workpiece) are different, and the anode (especially the height) needs to be replaced to enable normal electroplating work. The entire production line needs to be shut down, which increases the loss and production cost. Moreover, the tooling fixtures are different and have a complex structure, and the replacement process needs to be performed manually, which reduces the work efficiency. Therefore, Chinese Patent Z201911244529.7 discloses a scheme for electroplating different workpieces with different cylinder diameters on the same tooling by using a cylinder diameter compensation structure, so that the existing tooling structure has a certain universality. However, with the continuous development of engine technology, especially in the use of motorcycles, there are many multi-cylinder requirements, and different standards exist among multi-cylinder engines. Not only are the cylinder diameters different, but also the distances between the cylinder diameters are different. The existing circulating electroplating tooling is fixedly designed, and for different multi-cylinder engine cylinder blocks, multiple tooling structures are needed, and the original tooling needs to be removed and replaced with a suitable electroplating tooling. This not only makes the operation complex, but also increases the tooling cost and reduces the work efficiency.

[0004] Therefore, it is necessary to optimize and improve the existing circulating (dynamic) electroplating device and its parts, which have all the advantages of out-of-tank circulating electroplating and complete universality, can adapt to the electroplating process of one-cylinder to multi-cylinder engine cylinder holes, have a simple structure, are easy to use, do not need to remove the original tooling, thereby improving the work efficiency and reducing the work cost. SUMMARY

[0005] Therefore, the utility model aims to provide a general type liquid supply system for automatic electroplating of cylinder hole, which has all the advantages of out-of-tank circulating electroplating after electroplating, has complete universality, can adapt to the electroplating process of one-cylinder to multi-cylinder engine cylinder holes, has a simple structure, is easy to use, does not need to remove the original tooling, thereby improving the work efficiency and reducing the work cost.

[0006] The utility model discloses a general type liquid supply system for automatic plating of cylinder hole, including introducing the liquid supply seat for forming circulating plating of electroplating liquid, when using, the liquid supply seat is freely placed in the corresponding setting station, and the adjustable position is formed and makes the state of the combination between the liquid supply seat, when using, the liquid supply seat is freely placed in the corresponding setting station, and the adjustable position is formed and makes the state of the combination between the liquid supply seat, and the setting station of liquid supply seat refers to the station that can provide electroplating liquid and electric energy when plating, and makes the work position of the combination that can be placed at will between the liquid supply seat,

[0007] Further, the liquid supply seat is provided with two flanges, and when using, the liquid supply seat is borne on the setting station through the flange, as shown in the drawing, when using, the setting station has two liquid supply seat tracks, the liquid supply seat is provided with two flanges corresponding to the two liquid supply seat tracks when using the utility model, and the liquid supply seat is borne on the liquid supply seat track through the flange, as shown in the drawing, the cross section of the liquid supply seat is approximately T-shaped (the shape below the flange can be formed according to requirements, and the flange part jointly constitutes T-shaped), when using, the flanges on both sides are respectively lapped on the corresponding liquid supply seat track, and after installing the plating assembly and workpiece, it can be pressed by the pressing device, which is convenient and fast, and the position is also relatively convenient to adjust.

[0008] Further, the liquid supply seat is provided with a liquid inlet and a drainage cavity leading the electroplating liquid from the liquid inlet, for leading the electroplating liquid into the electroplating environment; the drainage cavity has a buffering and mixing effect, so that the electroplating liquid is uniformly buffered.

[0009] Further, the bottom of the drainage cavity is provided with a through hole through which the anode seat for plating is sealed downward; as shown in the drawing, the bottom of the drainage cavity of the liquid supply seat is provided with a hole through which the anode seat passes, and the sealing is formed by the existing technical means when passing, such as threaded cooperation or sealing filler and the like.

[0010] Further, the liquid supply assembly further includes a flow guide member arranged in the drainage cavity and sleeved on the anode seat, the flow guide member has a drainage part provided with flow distribution holes, the flow distribution holes are distributed around the anode seat, and the outer side edge of the drainage part is matched with the side wall of the drainage cavity, thereby forming a stable matching structure and having a sealing effect, so that the electroplating liquid needs to flow into the electroplating environment through the flow distribution holes; the electroplating liquid is introduced between the anode and the workpiece through the flow distribution holes, which can ensure the uniform and stable flow of the electroplating liquid, so that the effective ions in the electroplating environment are uniformly distributed, thereby achieving the expected plating effect; the liquid inlet is located in the lower part of the drainage part and is communicated with the drainage cavity.

[0011] Further, the flow guide is a T-shaped sleeve sleeved on the anode seat, the flange of the T-shaped sleeve is the flow guide part, and the flow holes are uniformly distributed on the flange of the T-shaped sleeve; V-shaped ring grooves are formed on the end surface of the flow guide part and correspond to the flow holes, and the bottoms of the V-shaped ring grooves correspond to the flow holes; as shown in the figure, the T-shaped sleeve is a cylindrical structure, the upper end of which is bent outward to form an annular flange, and the structure is simple and compact, and the cooperation and installation with the anode are stable and simple; different from the existing flow guide part in which the upper end of the inner circle is a large lower small taper surface, the outlets of the flow holes are located at the bottoms of the V-shaped grooves, after the electroplating solution is guided out, the electroplating solution is fully buffered along the V-shaped grooves and scattered to the flow guide cavity, so that more uniform and stable electroplating solution is formed, and the impact of the electroplating solution flowing out of the flow holes on the local electroplating environment is further avoided.

[0012] Further, the liquid inlet is communicated with a pipe joint, and the pipe joint is arranged at a position and in a direction that do not interfere with the placement of the liquid supply seat in the set station.

[0013] The utility model discloses a general liquid supply system for automatic electroplating of cylinder holes, adopts a position-adjustable liquid inlet seat, and each liquid inlet seat corresponds to a cylinder hole, so that different cylinder models and cylinder hole numbers can be electroplated by the utility model, which has complete universality, and the utility model has all the advantages of tank external circulation electroplating and dynamic electroplating when in use, ensures real-time replacement of cations on the plating layer, forms no-difference concentration and stable and uniform fluidity, better guarantees the compactness of the plating layer, guarantees electroplating quality, is suitable for combined use because it is an independent individual, can adapt to the electroplating process of one-cylinder to multi-cylinder engine cylinder holes, does not need to replace tooling, and has simple structure and convenient use, thereby improving work efficiency and reducing work cost. BRIEF DESCRIPTION OF DRAWINGS

[0014] The utility model will be further described in connection with the drawings and examples.

[0015] Figure 1 It is the overall appearance diagram that the utility model is applied to electroplating process;

[0016] Figure 2 It is the overall appearance diagram that the utility model is applied to electroplating process and is additionally equipped with a liquid return groove;

[0017] Figure 3 It is the structural diagram of the bearing frame;

[0018] Figure 4It is a lateral section view of a bearing frame (with the liquid inlet seat of the utility model);

[0019] Figure 5 It is a section view of an electroplating unit;

[0020] Figure 6 It is an exploded view of an electroplating unit (reflecting the structure of the liquid inlet seat of the utility model);

[0021] Figure 7 It is an anode structure diagram;

[0022] Figure 8 It is a structure diagram of a pressing device;

[0023] Figure 9 It is a structure diagram of a liquid return groove. DETAILED DESCRIPTION

[0024] As Figures 1 to 9 shown: the universal liquid supply system for automatic electroplating of cylinder holes of the embodiment, comprising a liquid supply seat 301 for introducing electroplating liquid to form a circulating electroplating, in use, the liquid supply seat is freely placed in the corresponding set work station, forming a position-adjustable and combinable state between the liquid supply seats; in use, the liquid supply seat is freely placed in the corresponding set work station, forming a position-adjustable and combinable state between the liquid supply seats, the set work station of the liquid supply seat refers to a work station that can provide electroplating liquid and electric energy during electroplating work, and the liquid supply seats can be placed and combined at will to form a work station;

[0025] The utility model will be described in detail in combination with its application in an electroplating device:

[0026] The electroplating device as a whole comprises a bearing frame 1 and an electroplating device;

[0027] The electroplating device comprises a plurality of electroplating units 3, the electroplating unit 3 comprises a liquid supply assembly, an electroplating assembly and a pressing device 31, the liquid supply assembly comprises the liquid supply seat 301 of the utility model for introducing electroplating liquid to form a circulating electroplating, the pressing device 31 presses the electroplating assembly to the liquid supply seat 301, forming the electroplating unit 3;

[0028] The bearing frame 1 is provided with a pressing device track 101 and a liquid supply seat track 102;

[0029] The liquid supply seat 301 is freely placed on the liquid supply seat track 102, forming a position-adjustable and combinable state between the liquid supply seats 102, which can be combined and adjusted according to the number of cylinder holes on the cylinder and the distance between the cylinder holes, achieving universality; the pressing device 31 is position-adjustably installed on the pressing device track to adapt to the positional relationship between the liquid supply seats and achieve pressing; due to the need to bear the pressure of the pressing device and the gravity of the electroplating unit, the liquid supply seat track 102 can be two common supports for the liquid supply seat or one with a set width for supporting the liquid supply seat and can form a limit by using a transverse limiting design, achieving the purpose of the utility model.

[0030] As shown in the figure, the carrier frame 1 is a frame structure, which needs to be supported and beamed according to the mechanical bearing needs, which will not be described here; the frame structure of the carrier frame 1 is fixed with the pressing device track 101 at the upper part and the liquid supply seat track 102 at the lower part, and the pressing device track 101 and the liquid supply seat track 102 also play the role of beam reinforcement, which are parallel in space, so that the position adjustment of the liquid supply seat and the position adjustment of the pressing device can be in the same direction; in the utility model, the liquid supply seat 301 is the bottom part of the electroplating unit, and the position of the two electroplating units determines the positional relationship between the electroplating assemblies, so that when the cylinder holes of different multi-cylinder engines are electroplated, only the positional relationship between the liquid supply seats needs to be adjusted, which is simple in structure and operation process, improves work efficiency, does not need to be disassembled and replaced, and saves process cost; at the same time, unlike the existing technology, the electroplating tool is installed and fixed in position, and the structure is used by placing the hanging basket with the workpiece on the work station, in the utility model, the liquid supply seat 301 is located on the carrier frame 1, which is easy to adjust the position to adapt to the needs of different cylinders, and after being pressed between the workpiece, the sealing effect is also guaranteed; when used, the carrier frame, the liquid supply seat and the workpiece are hoisted together and placed on the electroplating station (at this time only the basic general equipment such as the electroplating tank) to carry out electroplating, of course, the power supply required after positioning is completed, which can be completed by the existing technology, which will not be described here.

[0031] The electroplating assembly generally includes an anode 304 and an anode seat 303 (the anode seat is a hollow tubular structure, which can be separate from the anode or integrally formed), and the general structure is that the anode 304 is installed on the anode seat 303, the anode seat 303 penetrates through the liquid supply seat 301, the liquid supply seat 301 introduces the electroplating liquid into the outside of the anode seat 303 and the outside of the anode 304 between the cylinder holes of the workpiece 4, the electroplating liquid for completing electroplating enters the center of the anode 304 from the top, is led out from the center hole of the anode seat 303, and flows back to the electroplating tank, which belongs to the general structure of the circulating electroplating, which will not be described here.

[0032] In this embodiment, the liquid supply seat track 102 is two parallel settings, and the liquid supply seat of several electroplating units is placed along the length direction of the liquid supply seat track 102; the liquid supply seat 301 is provided with two flanges corresponding to the two liquid supply seat tracks, and the liquid supply seat is supported on the liquid supply seat track through the flanges; as shown in the figure, the shape of the liquid supply seat is square column, and the longitudinal section (at least in the direction perpendicular to the liquid supply seat track) is approximately T-shaped (the part below the flange can form other shapes as needed, and the flange part together constitutes a T shape), in use, the flanges on both sides are respectively placed on the corresponding liquid supply seat track 102, and the body below the flange of the liquid supply seat is in abutment with the two liquid supply seat tracks, to ensure the stability of the installation; in use, after the electroplating assembly and the workpiece 4 are installed, they can be pressed by the pressing device 31, which is convenient and fast to use, and it is also relatively convenient to adjust the position.

[0033] In this embodiment, the carrier frame 1 is also provided with a total liquid supply channel 103, which is generally arranged close to the liquid supply seat track 102 to ensure a shorter electroplating liquid conveying distance; the total liquid supply channel 103 is provided with a plurality of liquid supply branch channels 104, the liquid supply branch channel 104 is provided with a liquid supply valve 1041 and can be in communication with the liquid inlet of the corresponding liquid supply seat 301; as shown in the figure, the total liquid supply channel 103 can be a pipeline structure parallel to the liquid supply seat track 102, which can be a square pipeline structure or a circular pipeline structure, etc., and the length can be extended to the length direction that the liquid supply seat 301 can distribute, the liquid supply branch channel 104 is provided with a liquid supply valve 1041, the idle liquid supply seat 301 (electroplating unit) closes the liquid supply valve, of course, the liquid supply branch channel 104 is generally formed by a hose to ensure the adaptability to the position adjustment of the liquid supply seat, the liquid supply seat 301 is provided with a pipe joint 3011 for communication with the branch channel; as shown in the figure, the pipe joint 3011 is inclined downward to avoid the liquid supply seat track 102, which will not be described here.

[0034] In this embodiment, the bottom of the total liquid supply channel 103 is provided with a total liquid inlet pipe 105, and the liquid inlet port of the total liquid inlet pipe 105 is directly in sealing communication with the outlet pipe 203 of the electroplating tank after the carrier frame is in place; the total liquid inlet pipe 105 is a pipeline for introducing the electroplating liquid in the electroplating tank into the total liquid supply channel 103, which has a liquid inlet port and introduces the electroplating liquid from the port; the electroplating tank is provided with an outlet pipe 203 (generally in communication with the outlet of the electroplating liquid pump), and after the carrier frame 1 is in place, the total liquid inlet pipe 105 directly cooperates with the outlet pipe 203 of the electroplating tank, as shown in the figure, the total liquid inlet pipe 105 is vertically arranged, the lower port is the liquid inlet port and is a tapered port, the outlet pipe 203 is vertically arranged, and the upper port is a tapered port, after the carrier frame is in place, the upper port of the outlet pipe is directly inserted into the lower port of the total liquid inlet pipe to form a tapered cooperation pair, thereby completing the sealing connection, which is simple in structure and easy to operate.

[0035] In the embodiment, the liquid supply seat 301 has a flow guide cavity 3013 for introducing the electroplating solution from the liquid inlet, and the anode 304 of the electroplating assembly is sealed downward through the bottom of the flow guide cavity. As shown in the figure, the bottom of the flow guide cavity of the liquid supply seat 304 is provided with a hole for the anode seat 303 to pass through, and a seal is formed by means of the prior art, such as threaded connection or sealing filler, etc. The threaded connection can also ensure the stability of the installation of the anode seat, which is beneficial to ensure the coaxiality of the anode. Here, the details are not repeated. The liquid supply assembly further comprises a flow guide member 302 arranged in the flow guide cavity and sleeved on the anode seat 303. The flow guide member 302 has a flow guide part provided with flow distribution holes 3021. The flow distribution holes 3021 are distributed around the anode seat 303. As shown in the figure, the flow guide cavity is a cylindrical cavity, and the flow guide part is also cylindrical. After being placed, the outer side edge of the flow guide part is in close contact with the side wall of the flow guide cavity, thereby forming a stable matching structure and having a sealing effect, so that all the electroplating solution must flow into the electroplating environment through the flow distribution holes. In the utility model, the electroplating solution is introduced into the space between the anode and the workpiece through the flow distribution holes 3021, which can ensure the uniform and stable flow of the electroplating solution, so that the effective ions in the electroplating environment are uniformly distributed, thereby achieving the desired electroplating effect. The liquid inlet is connected with the flow guide cavity 3013 at the lower part of the flow guide part.

[0036] In the embodiment, the bottom of the total liquid supply channel 103 is connected with the total liquid inlet pipe 105 at a low point. When the electroplating process is stopped, the electroplating solution in the electroplating environment and the channel flows back to the total liquid inlet pipe 105 by gravity, and then flows back to the electroplating solution tank. As shown in the figure, the bottom of the total liquid supply pipe 103 is inclined, and the lowest point of the connection between the total liquid inlet pipe 105 and the total liquid supply channel is the inclined bottom. Of course, the total liquid supply channel can also be an inclined pipe installed on the carrier frame, which can also achieve the purpose of the utility model. The utility model also comprises a liquid return tank 2. After the carrier frame 1 is in place, the anode seat 303 is opposite to the liquid return channel 201 of the liquid return tank 1. As shown in the figure, the liquid return tank 2 is a rectangular open slot, which can contain the carrier frame from the horizontal direction as a whole. The inside is divided into a liquid return channel 201 of a certain width by two partitions. The anode seat 303 is opposite to the liquid return channel 201 after passing through the bottom of the flow guide cavity. The liquid return tank is provided with a liquid outlet. The liquid outlet is located in the range of the liquid return channel 201 and at the low point of the liquid return channel 201. The purpose of the utility model can be achieved by inclining the inner surface of the bottom of the liquid return tank 2. Here, the details are not repeated. In use, the liquid return tank 2 is located on the work station, and the liquid outlet pipe 203 of the electroplating solution tank is sealed through the bottom of the liquid return tank. After the carrier frame 1 is in place, the liquid return tank 2 contains the carrier frame 1 from the lower part, which can effectively ensure that all the electroplating solution of the hanger is sealed in time and will not leak out even if there is a leak.

[0037] In the embodiment, the flow guide 302 is a T-shaped sleeve which is sleeved on the anode seat 303. The T-shaped sleeve refers to a T-shaped section in the vertical direction, which will not be described here. The flange of the T-shaped sleeve is the flow guide part, and the flow distribution holes 3021 are uniformly distributed on the flange of the T-shaped sleeve. V-shaped ring grooves 3022 are formed on the end surface of the flow guide part corresponding to the flow distribution holes 3021, and the bottom of the V-shaped ring groove 3022 corresponds to the flow distribution hole. As shown in the figure, the T-shaped sleeve is a cylindrical structure, and the upper end of the cylindrical structure is bent outward to form an annular flange. The structure is simple and compact, and the cooperation and installation with the anode 304 are stable and simple. Unlike the existing flow guide part in which the upper end of the inner circle is a large lower small conical surface, the outlet of the flow distribution hole 3021 is located at the bottom of the V-shaped groove. After the electroplating solution is guided out, the electroplating solution is fully buffered along the V-shaped groove and scattered to the flow guide cavity, forming more uniform and stable electroplating solution, and further avoiding the impact of the electroplating solution flowing out of the flow distribution hole 3021 on the local instability of the electroplating environment.

[0038] In the embodiment, the anode 304 of the electroplating assembly is installed on or integrally formed with the anode seat 303, and includes a working part 3041 and a functional part 3042. The working part 3041 is used to form an electroplating environment, and the functional part 3042 extends upward to introduce anode current. The functional part 3042 is a hollow structure, which is used to introduce the electroplating solution of the electroplating environment into the center of the anode and guide the backflow from the anode seat. In the embodiment, at least two windows with a specified area are formed on the working part of the anode and extend upward to the position of the functional part, thereby forming a hollow part, which will not be described here. As shown in the figure, in the embodiment, the anode seat 303 and the anode 304 are separately arranged. The anode seat 303 is a hollow column, and the anode seat 303 is inserted into the anode 304 upward and the outer circle is provided with an annular protrusion. The annular protrusion upwardly abuts against the lower end surface of the anode to limit the anode. At the same time, the anode seat passes through the flow guide 302 downward, and the annular protrusion downwardly abuts against the upper end surface of the flow guide 302. The lower end surface of the flow guide 302 is placed on the bottom of the flow guide cavity, thereby forming a stable support from bottom to top. In order to ensure that the electroplating solution flows into the electroplating environment through the flow distribution holes 3021, the cooperation between the anode seat 303 and the flow guide 302 and the cooperation between the flow guide 302 and the wall of the flow guide cavity 3013 need to be tight, or necessary sealing measures are adopted, which will not be described here.

[0039] As shown in the figure, the pressing device 31 is hung on the pressing device rail 101 through a pressing device seat 3107, the pressing device seat 3107 comprises a rectangular seat groove which is upwardly open and downwardly contained in the pressing device rail and a hanging part which is inwardly bent at the upper part of the rectangular seat groove and clamped on the upper surface of the pressing device rail; as shown in the figure, the pressing device 31 comprises a driving upper and lower reciprocating pressing rod and a lever assembly for driving the reciprocating movement of the pressing rod 3102, the lower end of the pressing rod 3102 is provided with a pressing plate which can be adjusted in height on the pressing rod 3102 (such as threaded connection), which can adapt to different workpiece heights; the lever assembly comprises a driving lever 3104 (forming a bent structure with a fulcrum as a reference) and a rocker arm 3105, the upper end of the pressing rod 3102 is rotatably hinged to the resistance end of the lever 3104, and the upper end of the rocker arm 3105 is coaxially hinged with the fulcrum of the driving lever 3104 with single degree of freedom; as shown in the figure, the rocker arm 3105 is two split levers on the left and right, a limiting block 31051 (generally integrally formed) is fixed between the two rocker arms 3105, and the limiting block limits the lever from continuing to rotate in the pressing direction when the driving lever 3104 drives the pressing rod to press the workpiece; the lower end of the rocker arm is hinged to a base, and the rocker arm is two split levers which are hinged to the base coaxially at the lower end of the base; when the pressing rod presses the workpiece through the pressing part, the axis of the pressing rod intersects or exceeds the axis of the fulcrum, at this time, the limiting block 31051 abuts against the resistance arm of the driving lever from the back side; as shown in the figure, the driving lever 3104 is a right angle structure with the fulcrum as a boundary, the resistance arm forms a forked groove, and the pressing rod 3102 is hinged to the end of the resistance arm in the forked groove, the forked structure is beneficial to stable connection and does not exert a biasing force, so that the structure is stable and has a long service life; as shown in the figure, the driving lever 3104 is a right angle structure with the fulcrum as a boundary (i.e. the power arm and the resistance arm are at right angles), that is, the angle is at the fulcrum, the power arm is bent forward, which is convenient for operation and does not interfere with the rocker arm (limiting block).

[0040] As shown in the figure, the base 3103 comprises a base plate and a guide sleeve, which are detachably connected and fixed, and both are provided with through holes for the pressing rod 3102 to pass through; the base plate is detachably fixed to the rectangular seat groove through two connecting rods, which has strong adaptability; the guide sleeve is fixed to the base plate through threaded connection, which has simple structure; as shown in the figure, the lower end of the guide sleeve is processed with external threads, which is screwed on the internal threads on the base plate to form connection, and locking nuts are used for locking to avoid falling out; the lower end of the rocker arm is hinged on the guide sleeve, which has simple and practical structure, the whole locking assembly forms a module, and the hinged part is completely machined before being installed on the base plate;

[0041] In the utility model, the backward refers to the direction of the power arm swing when the driving lever presses the workpiece, and the back side is the side corresponding to the backward, which will not be repeated here.

[0042] Due to the effect of the limiting block, the resistance wall of the lever is prevented from continuing to rotate, and the rocker arm cannot continue to rotate under the effect of the limiting block, that is, interlocking is formed, and the axis of the pressing rod intersects or exceeds the axis of the fulcrum backward (generally, intersection is enough), that is, a stable retraction mechanism is formed, avoiding loosening.

[0043] The reciprocating movement of the pressing rod is generally single degree of freedom, that is, only reciprocating movement is performed; the upper end of the rocker arm is hinged to the fulcrum of the driving lever through a fulcrum hinge shaft, and the driving lever rotates around the fulcrum under the action of external force to make the resistance arm tend to be vertical from horizontal, thereby driving the pressing rod to press down the workpiece; the rocker arm swings forward around the lower end under the transverse (without displacement) constraint of the pressing rod, and the fulcrum axis at least intersects or exceeds the hinge axis backward when the resistance arm presses the workpiece, thereby forming self-locking, avoiding the rotation of the lever under the action of the reaction force, and at the same time, the limiting block limits the continuous rotation of the lever in the pressing direction, avoiding continuous rotation to drive the pressing rod to move upward, forming a self-locking pressing mechanism (that is, the mechanical structure composed of the pressing rod and the driving lever is similar to a connecting rod crank structure, but due to the limiting of the limiting block, it is avoided to form a circular motion similar to a connecting rod crank, thereby forming self-locking).

[0044] In the embodiment, a transition ring 305 is further included, and the pressing device presses the electroplating assembly to the liquid supply seat 301 through the transition ring 305. The transition ring is provided with a functional gap, and the functional part of the anode is connected to the power supply through the functional gap in use. As shown in the figure, the transition ring 305 is a columnar ring, which is sleeved on the anode in use and is pressed on the workpiece at the lower end, and the upper end is pressed by the pressing plate of the pressing device, thereby forming a stable electroplating environment. The purpose of the functional gap of the transition ring is to easily clamp the functional part of the anode to the power supply through the gap, and different transition rings can be adapted to different cylinder bodies. In use, in addition to the lower shielding ring 308 provided between the liquid inlet seat 301 and the workpiece 4, a compensation ring 309 is also needed. The lower shielding ring 308 and the compensation ring 309 can be replaced according to different cylinder hole diameters, and the liquid inlet seat 301 is a universal structure. The compensation ring 309 simultaneously serves as a centering structure (corresponding to the positioning hole or bolt hole on the workpiece to form positioning) and a sealing structure to center the workpiece, so that the workpiece is coaxial with the anode and is sealed, thereby ensuring the electroplating quality, which will not be described here. The upper part of the workpiece needs to be provided with an upper shielding ring 306, a sealing structure 307, and a centering sleeve to ensure that the upper shielding ring 306 is coaxial with the workpiece 4 and is sealed, thereby ensuring the electroplating quality, which will not be described here. The working principle of the compensation ring belongs to the existing technical solution, that is, different compensation rings have the same outer diameter, and the inner diameter corresponds to different cylinder hole diameters, thereby achieving compensation, which will not be described here. The function and structure of the shielding ring belong to the existing technical solution, which will not be described here.

[0045] The utility model uses, install work piece and the bearing frame 1 of plating assembly and liquid inlet seat 301 etc. of the utility model's hanger are transferred to the position of plating, when reaching the position of plating, the hanger is placed directly in the position, the liquid inlet main pipe on the hanger is inserted (tapered matching pair) directly between the liquid outlet pipe of plating liquid tank to form intercommunication, the anode seat is opposite to the liquid return tank, and the preparation work is completed, and the plating can be started, of course, the positioning structure should be equipped on the position, and the positioning structure on the bearing frame is matched, the positioning position is guaranteed to be accurate, so that the cooperation between the liquid inlet main pipe and the liquid outlet pipe and the conductive structure can be connected, and the plating process is carried out smoothly,

[0046] The utility model discloses a whole module type, and the whole is sent to the position with the plating environment, and the plating unit can be combined at random, is suitable for the cylinder hole of different number of cylinder body and the cylinder hole of different model size of cylinder body, and installation positioning is convenient, is favorable to realize automatic tank plating, and work efficiency is improved greatly, in the structure of the utility model, the anode and other components are easy and simple to replace, since the anode and the anode seat are split structure and coaxial insertion type cooperation, of course, the insertion type cooperation needs to guarantee the cooperation gap set, to guarantee that the plating liquid is not leaked too much, when replacing the anode, directly taking out from the anode seat, simple and convenient operation, therefore, the utility model is used for cylinder body tank plating and has complete universality, is suitable for various size, model and cylinder hole number work piece, realizes the seamless switching of product, avoids the production capacity loss of stop line, satisfies the delivery demand rapidly, reduces the switching time of mature product to the minimum, and reduces the production capacity loss to the minimum.

[0047] The utility model discloses tank plating refers to the dynamic plating that is realized through forming plating liquid circulation outside plating liquid tank, and will not be repeated here.

[0048] The embodiment is with engine cylinder body as the example, actually the technical scheme of the utility model claimed in the utility model is not limited to engine cylinder body, and can be compressor cylinder, plunger pump cylinder body and other cylinder bodies with similar structure, and will not be repeated here.

[0049] Finally, it is explained that the above embodiment is only used to illustrate the technical scheme of the utility model and is not limited, although the utility model is described in detail with reference to the preferred embodiment, those skilled in the art should understand that the technical scheme of the utility model can be modified or replaced, and the technical scheme of the utility model is not deviated from the purpose and scope, which should be covered in the claim range of the utility model.

Claims

1. A universal liquid supply system for automated cylinder bore electroplating, characterized in that: It includes a liquid supply base for introducing electroplating solution to form a circulating electroplating system. In use, the liquid supply base can be freely placed at the corresponding set position, forming an adjustable position that allows the liquid supply bases to be combined with each other.

2. The universal liquid supply system for automated cylinder bore electroplating according to claim 1, characterized in that: The liquid supply seat has two flanges, and in use, the liquid supply seat is supported at the set position via the flanges.

3. The universal liquid supply system for automated cylinder bore electroplating according to claim 1, characterized in that: The liquid supply seat is provided with a liquid inlet and a drainage cavity through which the electroplating solution is introduced.

4. The universal liquid supply system for automated cylinder bore electroplating according to claim 3, characterized in that: The bottom of the drainage cavity is provided with a through hole through which the anode seat for power plating is sealed downwards.

5. The universal liquid supply system for automated cylinder bore electroplating according to claim 3, characterized in that: It also includes a flow guide that is disposed in the drainage cavity and sleeved on the anode seat during use. The flow guide has a drainage part with flow distribution holes distributed around the anode seat. The outer edge of the drainage part is in contact with the side wall of the drainage cavity. The liquid inlet is located at the lower part of the drainage part and communicates with the drainage cavity.

6. The universal liquid supply system for automated cylinder bore electroplating according to claim 5, characterized in that: The flow guide is a T-shaped sleeve that is fitted over the anode seat. The flange of the T-shaped sleeve is the flow guide portion, and the flow distribution holes are evenly distributed on the flange of the T-shaped sleeve. A V-shaped annular groove is formed on the end face of the flow guide portion corresponding to the flow distribution holes, and the bottom of the V-shaped annular groove corresponds to the flow distribution holes.

7. The universal liquid supply system for automated cylinder bore electroplating according to claim 5, characterized in that: The inlet is connected to a pipe connector, and the location and orientation of the pipe connector do not interfere with the placement of the liquid supply seat at the designated work position.

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