CN211734509U - Universal compensation device for circular electroplating - Google Patents

Abstract

The utility model discloses a universal compensating device for circulating electroplating. The universal compensating device is used for installing workpieces, compensating in height and diameter, and then installing and pressing, and the universal compensating device is also used for compensating the electroplating liquid. It is introduced into the cylinder and used to pass through the anode; the overall height of the utility model matched with the workpiece is adjusted to form a match with the anode, and the anode does not need to be replaced for different workpieces, so it is not necessary to stop the production line. It can be used in the electroplating device, and the matching universal compensation device can also compensate for the installation difference between the different inner diameters of different workpieces and the bottom plate, forming the versatility in height and diameter; therefore, the utility model is used outside the cylinder groove. Electroplating is versatile, suitable for workpieces of various sizes, realizes "seamless switching" of products, avoids the loss of production capacity due to downtime, quickly meets delivery needs, minimizes the switching time of mature products, and reduces production capacity loss to lowest.

Description

Universal compensation device for cyclic electroplating

technical field

The utility model relates to a part of a cylinder electroplating device, in particular to a universal compensation device for cyclic electroplating.

Background technique

As the main component of the engine, plunger pump, reciprocating compressor and other equipment, the cylinder block is used to form the working space together with the piston and the cylinder head; taking the engine as an example, it forms the combustion chamber and provides the movement trajectory for the piston assembly, thus forming a Power conversion environment. In the process of guiding the piston to reciprocate continuously, the inner wall of the cylinder and the piston rub against each other for a long time and at a high frequency, which reduces the useful power of the cylinder and consumes a part of the energy. In order to solve the above problems, the inner wall is electroplated, and the electroplating layer is used instead of the cylinder liner to solve the above problems. In the prior art, the circulating electroplating outside the tank ensures real-time replacement of cations on the coating layer, undifferentiated concentration and stable and uniform fluidity due to the formation of a flowing electroplating environment, ensuring the compactness of the coating layer and the quality of electroplating.

However, in the existing electroplating structure outside the tank, due to the different external dimensions of the cylinder (workpiece), the anode (especially the height) needs to be replaced to be used for the normal electroplating work, and the entire production line needs to be shut down to increase the loss and increase the production Moreover, the fixtures are also different, the structure is complex, and the replacement process needs to be carried out manually, which reduces the work efficiency.

Therefore, it is necessary to improve the existing cyclic electroplating tooling, which is versatile, suitable for workpieces of various sizes, realizes "seamless switching" of products, avoids the loss of production capacity due to stoppage, quickly meets the delivery demand, and converts mature products. Changeover times are minimized and capacity losses are minimized.

Utility model content

In view of this, the purpose of this utility model is to provide a universal tooling (auxiliary) for electroplating outside the cylinder groove, which has versatility, is suitable for workpieces of various sizes, realizes "seamless switching" of products, and avoids line stoppage. reduce capacity loss, quickly meet delivery needs, minimize switchover time for mature products, and minimize capacity loss.

The utility model is a universal compensation device for cyclic electroplating. The universal compensation device is used for installing workpieces, and after compensation in height and diameter, they are installed and pressed, and the universal compensation device is also used for introducing electroplating liquid into cylinder and used to pass the anode;

Of course, the utility model also needs to cooperate with the mounting frame assembly when in use. As shown in the figure, the mounting frame assembly includes a fixing frame and a pressing assembly;

The fixing frame includes a base plate and a frame fixed on the base plate;

The universal compensating device of the utility model is used for installing the workpiece, and after compensating in height and diameter, it is installed on the bottom plate and pressed by the pressing component;

When the utility model is used, the workpiece is installed in the tooling of the utility model and then fixed by the fixing frame, and then transferred to each work station of electroplating. The anode needs to be replaced, so there is no need to stop the production line. The replacement of different workpieces can be directly installed in the tooling and placed in the electroplating device. The matching universal compensation device can also form a transition between the workpiece and the electroplating device to compensate for different workpieces. The installation difference between different inner diameters and bottom plates forms the versatility in height and diameter;

The universal compensation device can adopt a cylindrical structure, which is matched with the workpiece in height, so that the total height is matched with the height of the anode, and the inner diameter of the cylindrical structure is variable diameter, which is suitable for the transitional installation between the bottom plate and the workpiece , which will not be repeated here; of course, the structure of the universal compensation device is not necessarily cylindrical, and can be any shape to achieve the above purpose, and will not be repeated here;

The fixing frame is provided with a pressing component, which is used to press the workpiece and the universal compensation device to ensure the stability of the workpiece during transportation and the electroplating process, so as to ensure the electrical quality and the smooth progress of the electroplating process.

Further, the universal compensation device includes a diameter-reducing compensator, the diameter-reducing compensator is a cylinder with an axial through hole, and the axial through-hole of the reducing-diameter compensating member is used for introducing the electroplating solution and for passing through the anode , the lower end of the different reducing compensators have the same external dimensions, the upper end has an inner diameter that is compatible with the inner diameter of the corresponding workpiece, and the total height after installing the workpiece can be matched with the anode to complete the electroplating; as shown in the figure, the variable diameter compensation The fixed diameter of the lower end of the piece can be installed with standard tooling, and the upper end corresponds to the inner diameter of the corresponding workpiece, so it is versatile. The overall height of the workpiece of the utility model is unchanged, and can be matched with the height of the anode; as shown in the figure, the lower part of the variable diameter compensator matched with different workpieces has the same size, which is used to cooperate with the bottom plate channel of the bottom plate of the fixed frame, and the upper part has the same size. Matching with the workpiece (different workpieces have different matching dimensions), to realize the transition between the inner diameter of the workpiece and the electroplating device, it is enough to press tightly, which will not be repeated here.

Further, the universal compensation device further includes a shielding member, the shielding member includes an upper shielding ring and a lower shielding ring made of non-metallic conductive material, the lower shielding ring is coaxially embedded in the axial through hole and the shaft The upper shielding ring and the upper end of the workpiece have the same diameter and are pressed against the upper end of the workpiece and are pressed axially by the pressing component; the diameter reducing compensator is made of non-conductive material to ensure that the conductive part forms a stable electroplating tool. Condition, avoid the waste of materials and the interference to the electroplating conditions; the same diameter means that the inner diameter of the upper shielding ring and the inner diameter of the lower shielding ring are the same and coaxial with the inner diameter of the workpiece. The burrs lead to the upper edge of the upper shielding ring and the lower edge of the lower shielding ring to ensure the quality of electroplating; of course, a radial seal should be formed between the upper shielding ring and the lower shielding ring and the workpiece (cylinder) to prevent the leakage of the electroplating solution ; Structurally, sealing rings (which can be placed on the corresponding end faces) are respectively provided on the lower end face of the upper shielding ring (contact with the upper end face of the cylinder block) and the upper end face of the lower shield ring (contact with the lower end face of the cylinder block). There is an annular sealing ring groove on the upper part, which is used to place the sealing ring). Made of non-metallic conductive materials (such as conductive rubber or plastic), in actual use, the inner plating layer can be separated from the upper shielding ring and the lower shielding ring with a small external force (because the non-metallic conductive material is generally combined with the metal plating layer. (small force), such as peeling off directly with a sharp tool, or using a small external force to deform the upper shielding ring and the lower shielding ring to peel off the coating, it can be made by using a non-metallic conductive material with a set elastic modulus. The non-metallic conductive material with elastic modulus can be deformed by a small external force (such as holding by hand), but it can also withstand the pressing force of the workpiece during electroplating to ensure the smooth progress of the electroplating process, so that the inner circle of the shielding ring is coated The burr is separated from the inner circle of the shielding ring, and the shielding ring can be used twice. At the same time, the coating and burr of the inner circle can be recycled, reducing consumption and plating costs; while the metal shielding ring (usually aluminum) coating and burr are closely combined with the shielding ring. , it cannot fall off, and it is treated by chemical de-plating, which requires a de-plating site, and the shielding ring will be scrapped after multiple de-plating, which will affect the later use, and the coating cannot be recycled and will be discharged with the waste liquid, causing great waste. .

Further, the universal compensation device also includes a positioning sleeve, the positioning sleeve is mounted with a positioning pin that cooperates with the installation threaded hole on the workpiece, and the positioning pin is positioned so that the positioning sleeve is concentric with the workpiece, and the upper shielding ring is concentric. In the positioning sleeve and through the positioning sleeve and the workpiece concentric with the same diameter;

The installation threaded hole on the workpiece refers to the threaded hole on the end face of the workpiece. The purpose of the positioning sleeve is to use the cooperation between the positioning pin and the installation threaded hole (the positioning pin is inserted into the threaded hole to form positioning) to ensure that the positioning sleeve is concentric with the workpiece. The upper shielding ring is installed on the inner circle of the positioning sleeve to form a coaxial match with the workpiece;

The specific installation process is: position the reducing compensator on the bottom plate (a sealing ring can be used, and the sealing ring can be made of EVA foam), place the lower shielding ring on the reducing compensator, and also place the lower end and the reducing compensator between the Sealing can be set (no limitation on sealing method), and the sealing ring is placed at the set position of the upper end face of the lower shielding ring, the workpiece is placed on the lower shielding ring, the upper shielding ring is placed after positioning by the positioning sleeve, and it can be pressed by the pressing device. .

Further, the workpiece is in close contact with the upper shielding ring and the lower shielding ring to form a radial seal. The radial seal means that a sealing ring is provided on the end surface to prevent the liquid from leaking from the radial direction.

Further, the inner circle of the variable diameter compensator is provided with a step for placing the lower shielding ring, and the inner diameter of the step is larger than the inner diameter of the lower shielding ring to ensure the stable flow of the electroplating solution; the upper shielding ring is coaxially placed on the positioning sleeve. the inner circle;

The parts that are in direct contact with the cylinder body are generally sealed with acid and alkali-resistant fluororubber sealing rings, such as the sealing between the upper and lower shielding rings and the workpiece, to ensure the sealing and to ensure the close contact between the shielding ring and the workpiece cylinder to successfully transfer burrs ; For seals that do not directly contact the workpiece, EVA foam is used (such as between the lower shielding ring and the reducing compensator, etc.) to reduce the clamping action of the operator to place/remove the rubber ring and improve the clamping efficiency; such as As shown in the figure, the bottom plate is provided with a positioning hole for positioning the bottom plate on the electroplating device. After the workpiece is installed in the utility model, the tooling of the utility model is moved to the electroplating device through the positioning hole and the positioning hole on the device. The protrusions are matched to ensure that the placement position is matched with the electroplating liquid flow channel of the device to ensure the normal progress of electroplating.

Beneficial effects of the utility model: the universal compensation device for cyclic electroplating of the present utility model, after the workpiece is installed, the overall height of the utility model matched with the workpiece is adjusted to form a match with the anode, and the anode does not need to be replaced for different workpieces, so it does not need to be replaced. The production line needs to be stopped, and different workpieces can be directly installed in this tooling and placed in the electroplating device. The matching universal compensation device can also compensate for the installation difference between the different inner diameters of different workpieces and the bottom plate, which is formed in height and diameter. Therefore, the utility model has the versatility for electroplating outside the cylinder tank, is suitable for workpieces of various sizes, realizes "seamless switching" of products, avoids the loss of production capacity due to line stoppage, and quickly meets delivery requirements. Minimize changeover time for mature products and minimize capacity loss.

Description of drawings

The present utility model will be further described below in conjunction with the accompanying drawings and embodiments.

Fig. 1 is the structural sectional view of the utility model;

Fig. 2 is an enlarged view at Fig. 1A;

Fig. 3 is an enlarged view at Fig. 1B;

FIG. 4 is a sectional perspective view of the utility model in use;

Figure 5 is a perspective view of the utility model using the structure.

Detailed ways

1 is a cross-sectional view of the structure of the present utility model, FIG. 2 is an enlarged view of FIG. 1A, FIG. 3 is an enlarged view of FIG. 1B, FIG. 4 is a cross-sectional perspective view of the utility model in use, and FIG. As shown in the figure: the utility model is described in detail below with the application structure of the utility model; the universal compensation device of the cyclic electroplating of the present embodiment is used to install the workpiece and compensate in height and diameter After installation and pressing, and the universal compensation device is also used for introducing the electroplating solution into the cylinder and for passing through the anode;

Of course, the utility model also needs to cooperate with the mounting frame assembly when in use. As shown in the figure, the mounting frame assembly includes a fixing frame and a pressing assembly 1;

The fixing frame includes a base plate and a frame fixed on the base plate;

The universal compensating device of the utility model is used for installing the workpiece, and after compensating in height and diameter, it is installed on the bottom plate and pressed by the pressing component;

When the utility model is used, the workpiece is installed in the tooling of the utility model and then fixed by the fixing frame, and then transferred to each work station of electroplating. There is no need to replace the anode, so there is no need to stop the production line. The replacement of different workpieces can be directly installed in the tool and placed in the electroplating device. The matching universal compensation device can also form a transition between the workpiece and the electroplating device to compensate for different workpieces. The installation difference between the different inner diameters and the bottom plate forms the versatility in height and diameter;

The universal compensation device can adopt a cylindrical structure, which is matched with the workpiece 9 in height, so that the total height is matched with the height of the anode, and the inner diameter of the cylindrical structure is variable diameter, which is suitable for the transition between the bottom plate and the workpiece. Installation is not repeated here; of course, the structure of the universal compensation device is not necessarily cylindrical, and can be any shape to achieve the above purpose, and will not be repeated here;

The pressing component is installed on the fixing frame, which is used to press the workpiece and the universal compensation device to ensure the stability of the workpiece during transportation and the electroplating process, so as to ensure the electrical quality and the smooth progress of the electroplating process.

In this embodiment, the universal compensating device includes a diameter reducing compensator 3, the diameter reducing compensating member 3 is a cylinder with an axial through hole, and the axial through hole of the reducing diameter compensating member 3 is used for introducing The electroplating solution is used to pass through the anode. The lower ends of the different reducing compensators 3 have the same outer dimensions, and the upper ends have inner diameters that are compatible with the inner diameter of the corresponding workpiece, and the total height after the workpiece is installed can be matched with the anode to complete electroplating; such as As shown in the figure, the fixed diameter size of the lower end of the different reducing compensators can be installed with standard tooling, and the upper end corresponds to the inner diameter of the corresponding workpiece (the same diameter and concentricity). The total height can be adapted to the height of the anode to complete the electroplating during use, so as to have versatility, the workpiece is axially pressed by the pressing component on the variable diameter compensator 3; the variable diameter compensator 3 is made of glass fiber reinforced plastic material ( Of course, other non-conductive materials with a certain strength can also be used, which will not be repeated here), which has an insulating effect and improves the electroplating efficiency.

Workpieces 9 (air cylinders) of different heights are equipped with variable diameter compensators 3 of different heights, so that the total height of the workpieces installed in the present utility model is unchanged, and can be matched with the height of the anode; and the variable diameter compensators matched with different workpieces The lower part has the same size, it is used to fit through the bottom plate channel of the fixing frame (to isolate the bottom plate from the electroplating environment), and the upper part is matched with the bottom plate channel of the workpiece matching bottom plate (different workpieces have different matching sizes) to achieve the inner diameter of the workpiece and the electroplating device. The transition between the two is done by pressing, and will not be repeated here; the variable diameter compensator 3 is made of glass fiber reinforced plastic material (of course, other non-conductive materials with certain strength can also be used, which will not be repeated here), which has an insulating effect, Improve electroplating efficiency.

In this embodiment, the universal compensation device further includes a shielding member, the shielding member includes an upper shielding ring 7 and a lower shielding ring 10 made of non-metallic conductive materials, and the lower shielding ring 10 is coaxially embedded in the The axial hole of the reducing compensator 3 is axially offset with the lower end of the workpiece 9 with the same diameter, the upper shielding ring 7 and the upper end of the workpiece 9 have the same diameter and are pressed axially by the pressing component 1; The parts are made of non-conductive materials to ensure that the conductive parts form a stable electroplating condition, avoiding material waste and interference to electroplating conditions; the same diameter means that the inner diameter of the upper shielding ring 7 and the inner diameter of the lower shielding ring 10 are the same as the workpiece 9. The inner diameters are the same and coaxial. During the electroplating process, the edge burrs generated in the electroplating process are guided to the upper edge of the upper shielding ring and the lower edge of the lower shielding ring to ensure the quality of electroplating. Both the upper shielding ring 7 and the lower shielding ring 10 are It is made of conductive material and will not be repeated here; of course, a radial seal needs to be formed between the upper shielding ring 7 and the lower shielding ring 10 and the workpiece 9 (cylinder) to prevent the leakage of the electroplating solution; structurally, the upper shielding The lower end face of the ring 7 (contact and abut against the upper end face of the cylinder block) and the upper end face of the lower shielding ring 10 (contact and abut against the lower end face of the cylinder block) are respectively provided with sealing rings 12 and 13 (which can be placed on the corresponding end faces). An annular sealing ring groove is provided for placing the sealing ring), the material of the sealing ring is generally acid and alkali resistant fluororubber, and the purpose of sealing and contacting can be achieved by pressing and deforming by external force; the inner circle lower end of the upper shielding ring An annular chamfer is formed, and the upper end of the inner circle of the lower shielding ring forms an annular chamfer. The chamfer structure can guide the burr to grow to the sudden change, so as to avoid the interference to the electroplating of the cylinder. form interference; the upper and lower shielding rings are made of non-metallic conductive materials (such as conductive rubber or plastic). In actual use, the inner coating can be separated from the upper and lower shielding rings with a small external force ( Because the non-metallic conductive material generally has a small bonding force with the metal coating), such as peeling off directly with a sharp tool, or using a small external force to deform the upper shielding ring and the lower shielding ring to peel off the coating, the coating can be peeled off by using a set elasticity The elastic modulus of the non-metallic conductive material can be deformed by a small external force (such as hand-holding), but it can also withstand the pressing force of the workpiece during electroplating to ensure the smoothness of the electroplating process. It goes on smoothly, so that the coating and burr of the inner circle of the shielding ring are separated from the inner circle of the shielding ring, and the shielding ring can be used twice. At the same time, the coating and burr of the inner circle can be recycled, reducing consumption and plating costs; The aluminum coating and burrs are closely combined with the shielding ring and cannot fall off. It is treated by chemical de-coating, and a de-plating site needs to be provided. After the shielding ring is repeatedly de-plated, it will affect the later use and be scrapped, and the coating cannot be recycled. With the discharge of waste liquid, great waste is caused.

In this embodiment, the universal compensating device further includes a positioning sleeve 8 on which a positioning pin 801 that is fitted with a mounting threaded hole on the workpiece 9 is installed, and is positioned by the positioning pin 801 so that the positioning sleeve and the workpiece are concentric , the upper shielding ring 7 is placed concentrically in the positioning sleeve 8 and is matched with the workpiece 9 concentrically and concentrically through the positioning sleeve 8;

The installation threaded hole on the workpiece 9 refers to the threaded hole on the end face of the workpiece. The purpose of the positioning sleeve is to use the matching between the positioning pin and the installation threaded hole (the positioning pin is inserted into the threaded hole to form positioning) to ensure the positioning sleeve 8 and the workpiece. Concentric, the upper shielding ring 7 is installed on the inner circle of the positioning sleeve to form the same diameter and coaxial matching with the workpiece; there are generally at least two positioning pins, and this embodiment is two symmetrically arranged to ensure positioning accuracy.

The specific installation process is as follows: position the variable diameter compensator 3 on the bottom plate 2 (a sealing ring can be used, and the sealing ring can be made of EVA foam), place the lower shielding ring 10 on the variable diameter compensator 3, and the lower end and the variable diameter compensation A seal can also be set between the parts 3 (the sealing method is not limited), and the sealing ring is placed at the set position of the upper end face of the lower shielding ring 10, the workpiece is placed on the lower shielding ring, and the upper shielding ring is placed after positioning by the positioning sleeve. The tightening device can be pressed tightly.

In this embodiment, the frame has a fixed upper longitudinal beam 6, the pressing assembly 1 is arranged on the upper longitudinal beam 6, and is provided with a pressing portion 5 that can be driven to reciprocate up and down for pressing or releasing. Workpiece 9; this structure can adopt any existing mechanical structure, including manual or electric, and can be realized by using the existing mechanical structure, which will not be repeated here; as shown in the figure, the frame includes four detachable ( Bolts) are fixed on the uprights 4 on the bottom plate 2, two uprights 4 are respectively arranged on both sides of the longitudinal direction (in the direction of the arrangement of multiple workpieces), and the upper parts of the two uprights 4 are fixedly connected (bolts) with an upper beam 12, then The upper longitudinal beam 6 is fixedly connected between the two upper transverse beams 12 to form a stable structure of fixed connection, which will not be repeated here.

In this embodiment, the pressing assembly 1 includes a pressing rod 101 that can be driven to reciprocate up and down along the upper longitudinal beam 6 and a lever assembly for driving the pressing rod 101 to reciprocate. The pressing portion 5 is located at The lower end of the pressing rod 101; the lever assembly includes a driving lever (including a power arm 1021 and a resistance arm 1022) and a rocker arm, and the resistance end of the lever (ie the end of the resistance arm) is rotatably hinged to the upper end of the pressing rod 101 , the lower end of the rocker arm can be rotated with a single degree of freedom relative to the upper longitudinal beam, and the upper end and the fulcrum of the driving lever can be pivoted coaxially with a single degree of freedom; the rocker arm is provided with a limit block 104, and the limit block 104 is in the drive lever. When the pressing rod 101 is driven to press the workpiece, the lever is restricted from continuing to rotate in the pressing direction;

The reciprocating motion of the pressing rod 101 is generally a single degree of freedom, that is, only reciprocating movement. The pressing part 5 can be integrally formed with the pressing rod 101 or can be separately and detachably arranged. In this embodiment, a plate-like structure is used for pressing Generally, a movable connection with the end of the pressing rod with a certain degree of freedom is used, such as a movable head such as a ball twist, so as to adapt to the pressing end face and ensure the coaxiality of the workpiece;

The upper end of the rocker arm is hinged with the fulcrum of the driving lever through the fulcrum hinge shaft 14, and the driving lever rotates around the fulcrum under the action of the external force, so that the resistance arm 1022 tends to be vertical from the lateral direction, thereby driving the pressing rod 101 downward to press the workpiece, so The rocker arm swings forward around the hinge point at the lower end of the rocker arm under the lateral (no displacement) constraint of the pressing rod 101. When the resistance arm 1022 presses the workpiece, the axis of the fulcrum at least intersects with the hinge axis of the fulcrum (the axis of the hinge shaft 14). Or backward beyond the hinge axis, thus forming a self-locking, preventing the lever from rotating under the reaction force, and at the same time, the limit block restricts the lever to continue to rotate in the pressing direction, so as to avoid continuing to rotate and drive the pressing rod upward, forming a self-locking pressing (That is, the mechanical structure composed of the pressing rod and the driving lever is similar to the connecting rod crank structure, but because it is limited by the limit block, the circular motion similar to the connecting rod crank is avoided to form self-locking).

In this embodiment, the pressing assembly 1 further includes a base, the base is fixed on the upper longitudinal beam 6, and the pressing rod 101 is arranged on the base to reciprocate up and down with a single degree of freedom. Two rocker arms are arranged on both sides of the base (rocker arm 1031 and rocker arm 1032) and the lower ends are coaxially hinged on the base, and the upper ends are coaxially hinged on both sides of the fulcrum of the driving lever (that is, with the driving lever at the fulcrum). coaxial rotation); when the pressing rod 101 presses the workpiece through the pressing part, the axis of the pressing rod intersects or exceeds the axis of the fulcrum backward. side against the resistance arm of the drive lever;

As shown in the figure, the base is fixed on the surface of the upper longitudinal beam 6 through a detachable structure, and the upper longitudinal beam 6 is provided with a through hole for the pressing rod to pass through; the base includes a base plate 105 and a guide sleeve 107, which guide the The sleeve has a guide slideway, the guide slideway is vertically arranged facing the via hole on the upper longitudinal beam, and the pressing rod passes through the guide slideway and cooperates with it to reciprocate up and down; base plate 105 It is detachably connected with the upper longitudinal beam 6 through connecting holes (bolts pass through, generally using waist-shaped holes), which has strong adaptability; the guide sleeve 107 is fixed to the base plate 105 by screw connection, and the structure is simple; as shown in the figure As shown in the figure, the lower end of the guide sleeve 107 is machined with an external thread, and is screwed on the internal thread on the base plate 105 in a way that the axis (direction of the guide slide) is perpendicular to the base plate 105 to form a connection. 106 for locking; the pressing rod passes through the guide sleeve 107 in the vertical direction and cooperates with its reciprocating motion (generally a single degree of freedom); The structure is simple and practical, the entire locking assembly forms a module, and the hinged part is completely processed and then installed on the base plate;

In the present invention, backward refers to the direction in which the power arm 1022 swings when the driving lever presses the workpiece (the direction indicated by the arrow in FIG. 4 ), and the back side is the side corresponding to the backward, which will not be repeated here. .

Due to the action of the limit block 14, the resistance wall 1022 of the lever is prevented from continuing to rotate, and the rocker arm 1031 and the rocker arm 1031 cannot continue to rotate under the action of the limit block, that is, an interlock is formed, and the axis of the pressing rod The axis that intersects at or exceeds the fulcrum backward (usually it is sufficient to intersect) forms a stable retraction mechanism to avoid loosening.

In this embodiment, the base is detachably and fixedly connected to the upper longitudinal beam 6 , the driving lever is a right-angle structure bounded by a fulcrum, the resistance arm 1022 forms a fork-shaped groove, and the pressing rod 101 is located in the fork-shaped groove Hinged at the end of the resistance arm, the fork-shaped structure is conducive to stable connection and does not exert biasing force, so that the structure is stable and has a long life cycle; as shown in the figure, the driving lever is a right-angle structure bounded by a fulcrum (that is, the power arm 1021 and the The resistance arm 1022 is at a right angle), that 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).

In this embodiment, the workpiece 9 is in close contact with the upper shielding ring 7 and the lower shielding ring 10 to form a radial seal. The radial seal means that a sealing ring is provided on the end surface to prevent liquid from leaking radially.

In this embodiment, the variable diameter compensator 3 can be positioned and installed on the bottom plate 2 and is coaxial with the bottom plate channel 201 , and the inner circle is provided with a step for placing the lower shielding ring 10 , and the inner diameter of the step is larger than that of the lower shielding ring. The inner diameter of 10 ensures the stable flow of the electroplating solution; the upper shielding ring 7 is coaxially placed on the inner circle of the positioning sleeve 8, and the pressing assembly 1 presses the workpiece 9 through the upper shielding ring 7; A variety of mechanical structures can be used for positioning on the bottom plate 2. For example, an annular sink groove is formed on the bottom plate channel 201 (the shape is the same as the radial dimension of the reducing compensator, this embodiment is a circle), and the reducing compensator is placed. In the annular sinking groove, the horizontal positioning can achieve the effect of coaxial, or the reducing compensator as shown in the figure can be matched with the bottom plate channel through the shaft shoulder (step shaft) structure, that is, the small diameter part passes through the bottom plate channel. , the shoulder of the large diameter part is pressed against the edge of the channel of the bottom plate to form positioning;

The parts in direct contact with the workpiece (cylinder) are generally sealed with acid and alkali-resistant fluororubber sealing rings, such as the sealing between the upper and lower shielding rings and the workpiece, to ensure the sealing and at the same time, it can ensure the close contact between the shielding ring and the workpiece cylinder to prevent The burr is successfully transferred; the seal without direct contact with the workpiece is made of EVA foam (such as between the lower shielding ring and the reducing compensator, etc.) Efficiency; as shown in the figure, the base plate is provided with a positioning hole for positioning the base plate on the electroplating device. After the workpiece is installed in the present utility model, the tooling of the present utility model is moved to the electroplating device through the positioning hole 202 and the The positioning protrusions 1101 on the device 11 cooperate to ensure that the placement position is matched with the electroplating liquid flow channel of the device, so as to ensure the normal progress of electroplating.

In this embodiment, the upper shielding ring and the lower shielding ring are both made of POM (polyoxymethylene) material added with carbon powder, and the addition ratio is less than or equal to 1% by mass fraction, preferably about 0.4%, which has good physical properties and It has good electrical conductivity and the coating is easy to fall off. It can be used for a long time without replacement, saving the cost of electroplating.

Since the coating can be peeled off by a simple physical method, no stripping process is required, the shielding ring is almost not worn out, the life cycle is long, and it can be used continuously for half a year to one year, and the current monthly low cost of shielding ring production can be reduced by 75% The above; do not use nitric acid to decoat the shielding ring, which meets the requirements of environmental protection. The decoating cost of nitric acid can be reduced by more than 60%, and there is no need to wait for the decoating time. Wastewater treatment pressure and corresponding costs; the stripped nickel layer can be recycled, saving space and reducing costs.

The electroplating outside the tank of the present invention refers to the dynamic electroplating realized by forming the electroplating liquid circulation outside the electroplating liquid tank, which will not be repeated here.

This embodiment takes an engine cylinder block as an example. In fact, the technical solution claimed by the present invention is not limited to an engine cylinder block, but can also be a cylinder block of a compressor cylinder, a piston pump cylinder block, etc. with similar structures. , and will not be repeated here.

Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and not to limit them. Although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should The technical solutions are modified or equivalently replaced without departing from the purpose and scope of the technical solutions of the present invention, and all of them should be included in the scope of the claims of the present invention.

Claims (9)

1. The utility model provides a general type compensation arrangement of circulation electroplating which characterized in that: the general compensation device is used for installing a workpiece, compensating the workpiece in height and diameter, installing and pressing the workpiece, and guiding electroplating solution into the cylinder body and passing through the anode.

2. The compensation device of the universal type for cyclic plating according to claim 1, wherein: general type compensation arrangement includes the reducing compensation piece, the cylinder of reducing compensation piece for having the axial via hole, the axial via hole of reducing compensation piece is used for leading-in plating solution and is used for passing through the positive pole, and is different reducing compensation piece lower extreme has the same overall dimension, and the upper end has the internal diameter size that suits with corresponding work piece internal diameter, and the total height after the installation work piece can accomplish the electroplating with the positive pole cooperation.

3. The compensation device of the universal type for cyclic plating according to claim 2, wherein: still include the shielding piece, the shielding piece includes last shield ring and the lower shield ring of being made by non-metallic conductive material, during the use last shield ring and lower shield ring are located the work piece both ends respectively and offset with the work piece with the footpath.

4. The compensation device of the universal type for cyclic plating according to claim 3, wherein: the lower shielding ring is coaxially embedded into the axial through hole and axially abuts against the lower end of the workpiece in the same diameter.

5. The compensation device of the universal type for cyclic plating according to claim 1, wherein: the universal compensation device further comprises a positioning sleeve, wherein a positioning pin matched with the mounting threaded hole in the workpiece is mounted on the positioning sleeve, and the positioning sleeve and the workpiece are concentric through positioning of the positioning pin.

6. The compensation device of the universal type for cyclic plating according to claim 3, wherein: the upper shielding ring is concentrically arranged in the positioning sleeve and is concentrically matched with the workpiece in the same diameter through the positioning sleeve.

7. The compensation device of the universal type for cyclic plating according to claim 2, wherein: the reducing compensation part is made of a non-conductive material.

8. The compensation device of the universal type for cyclic plating according to claim 3, wherein: when the device is used, the workpiece is in abutting contact with the upper shielding ring and the lower shielding ring, and radial sealing is formed.

9. The compensation device of the universal type for cyclic plating according to claim 3, wherein: the inner circle of the reducing compensation part is provided with a step for mounting the lower shielding ring, and the inner diameter of the step is larger than that of the lower shielding ring; the upper shielding ring is coaxially arranged in the inner circle of the positioning sleeve.

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