CN211734509U - Universal compensation device for circular electroplating - Google Patents

Abstract

The utility model discloses a general compensation device for circular electroplating, which is used for installing a workpiece, compensating the workpiece in height and diameter, installing and compressing the workpiece, and leading electroplating solution into a cylinder body and passing through an anode; the overall height is adjusted to be matched with the anode by the utility model matched with the workpiece, the anode does not need to be replaced for different workpieces, so that the production line does not need to be stopped, different workpieces are replaced and directly installed on the tool and placed in the electroplating device, the matched general compensation device can also compensate the installation difference between different inner diameters and bottom plates of different workpieces, and the universality on the height and the diameter is formed; therefore, the utility model is used for cylinder body external bath electroplates and has the commonality, is suitable for the work piece of various sizes, realizes "seamless switching" of product, avoids stopping the productivity loss of line, satisfies the delivery demand rapidly, reduces the switching time of ripe product to minimum, falls to the productivity loss minimum.

Description

Universal compensation device for circular electroplating

Technical Field

The utility model relates to a cylinder body electroplating device component, in particular to a universal compensation device for circular electroplating.

Background

The cylinder body is used as a main part of equipment such as an engine, a plunger pump, a reciprocating compressor and the like and is used for forming a working space together with the piston and the cylinder head; taking an engine as an example, the engine forms a combustion chamber and provides a motion track for the piston assembly, so that a power conversion environment is formed. In the process of guiding the piston to continuously reciprocate, the inner wall of the cylinder and the piston rub against each other for a long time at a high frequency, so that the useful power of the cylinder is reduced, and a part of energy is consumed. In order to solve the problems, electroplating is carried out on the inner wall, and an electroplating coating is used for replacing the cylinder sleeve to solve the problems. In the prior art, the circulating electroplating outside the tank ensures that cations on a plating layer are replaced in real time due to the formation of a flowing electroplating environment, the concentration of the plating layer is not different, the fluidity of the plating layer is stable and uniform, the compactness of the plating layer is ensured, and the electroplating quality is ensured.

However, in the existing structure for plating outside the bath, because the cylinder bodies (workpieces) have different overall dimensions, the anodes (especially the heights) need to be replaced for normal operation of plating, the whole production line needs to be shut down, the loss is increased, and the production cost is increased; and frock clamp is also diverse, and the structure is complicated, and the change process needs the manual work to go on, reduces work efficiency.

Therefore, the existing tooling for circular electroplating needs to be improved, has universality, is suitable for workpieces of various sizes, realizes seamless switching of products, avoids capacity loss caused by line stop, quickly meets delivery requirements, reduces switching time of mature products to the minimum, and reduces capacity loss to the minimum.

SUMMERY OF THE UTILITY MODEL

In view of this, the utility model aims at providing a general type frock (supplementary) of cylinder body extra-tank electroplating, have the commonality, be suitable for the work piece of various sizes, realize the "seamless switching" of product, avoid the productivity loss of stopping the line, satisfy the delivery demand rapidly, reduce the switching time of ripe product to minimum, reduce the productivity loss to minimum.

The utility model discloses a general compensation arrangement of circulation electroplating, general compensation arrangement is used for installing the work piece and install and compress tightly after compensating in height and diameter, and general compensation arrangement is still used for leading-in the plating solution into the cylinder body and be used for through the positive pole;

certainly, the utility model is matched with a mounting frame component when in use, and as shown in the figure, the mounting frame component comprises a fixing frame and a pressing component;

the fixing frame comprises a bottom plate and a frame fixed on the bottom plate;

the utility model is used for installing a workpiece, compensating the height and the diameter of the workpiece, installing the workpiece on the bottom plate and compressing the workpiece by the compressing component;

the utility model discloses during the use, the work piece is installed and is fixed through the mount behind the utility model discloses a frock, is transferred to each station of electroplating, adjusts the overall height through the general type compensation arrangement supporting with the work piece and forms the cooperation with the positive pole, different work pieces need not change the positive pole, therefore also need not stop the production line, change different work pieces directly install in this frock and lay in electroplating device can, supporting general type compensation arrangement can also form the transition between work piece and electroplating device, compensate the installation difference between the different internal diameters and the bottom plate of different work pieces, form in height and in the commonality on the diameter;

the universal compensation device can adopt a cylindrical structure, 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, so that the universal compensation device is suitable for transitional installation between the bottom plate and the workpiece and is not repeated herein; of course, the structure of the general compensation device is not necessarily cylindrical, and can be any shape for achieving the above purpose, and the description is omitted;

the mount is equipped with compresses tightly the subassembly for form to compress tightly work piece and general type compensation arrangement, guarantee the steadiness of work piece when the transportation and in the electroplating process, thereby guarantee going on smoothly of electric degree quality and electroplating process.

Furthermore, the universal compensation device comprises a variable diameter compensation part, wherein the variable diameter compensation part is a cylinder with an axial through hole, the axial through hole of the variable diameter compensation part is used for leading in electroplating liquid and is used for passing through an anode, the lower ends of different variable diameter compensation parts have the same external dimension, the upper ends of the different variable diameter compensation parts have the internal dimension which is matched with the internal diameter of a corresponding workpiece, and the total height of the installed workpiece can be matched with the anode to finish electroplating; as shown in the figure, the fixed diameter size at the lower end of the reducing compensation part can be matched with a standard tool for installation, the upper end of the reducing compensation part corresponds to the inner diameter of a corresponding workpiece, so that the reducing compensation part has universality, and workpieces (cylinders) with different heights are provided with the reducing compensation parts with different heights, so that the total height of the workpieces installed in the utility model is not changed, and the workpieces can be matched with the height of an anode; as shown in the figure, the size of the lower part of the reducing compensation part matched with different workpieces is the same, and the reducing compensation part is used for being matched with a bottom plate channel of a bottom plate of the fixing frame, and the upper part of the reducing compensation part is matched with the workpieces (the matching sizes of different workpieces are different), so that the transition between the inner diameter of the workpiece and the electroplating device is realized, and the compression is only required, and the details are not repeated.

Furthermore, the universal compensation device also comprises a shielding piece, wherein the shielding piece comprises an upper shielding ring and a lower shielding ring which are made of non-metal conductive materials, 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, and the upper shielding ring abuts against the upper end of the workpiece in the same diameter and is axially compressed by the compressing assembly; the reducing compensation part is made of non-conductive materials, so that a stable electroplating working condition is formed on a conductive part, and the waste of materials and the interference to the electroplating working condition are avoided; the same-diameter mutual abutting means that the inner diameter of the upper shielding ring and the inner diameter of the lower shielding ring are the same as and coaxial with the inner diameter of a workpiece, and edge burrs generated in the electroplating process are led to the upper edge of the upper shielding ring and the lower edge of the lower shielding ring in the electroplating process so as to ensure the electroplating quality; certainly, radial sealing is required to be formed between the upper shielding ring and the workpiece (cylinder) and between the lower shielding ring and the workpiece (cylinder) so as to prevent the electroplating solution from leaking; the lower end face of the upper shielding ring (contacted and abutted with the upper end face of the cylinder body) and the upper end face of the lower shielding ring (contacted and abutted with the lower end face of the cylinder body) are respectively provided with a sealing ring (an annular sealing ring groove can be formed in the corresponding end face for placing the sealing ring), the sealing ring is generally made of acid and alkali resistant fluororubber, and the aims of sealing and contact and abutment can be achieved through external force compression deformation; the upper shielding ring and the lower shielding ring are made of non-metal conductive materials (such as conductive rubber or plastics), when in actual use, the inner plating layer can be separated from the upper shielding ring and the lower shielding ring by using a small external force (because the binding force between the non-metal conductive materials and a metal plating layer is generally small), for example, the plating layer can be directly peeled off by using a sharp tool, or the upper shielding ring and the lower shielding ring can be deformed by using a small external force (such as hand holding) to peel off the plating layer, the non-metal conductive materials with the set elastic modulus can be deformed by using the non-metal conductive materials with the set elastic modulus, but can bear the pressing force of a workpiece during electroplating to ensure the smooth operation of the electroplating process, so that the plating layer and burrs of the inner circle of the shielding ring can be separated from the inner circle of the shielding ring, the shielding ring can be used for the second time, and, the consumption and the electroplating cost are reduced; and metallic shield ring (generally for aluminium) cladding material and burr and shielding ring combine closely, can't drop, adopt chemistry to remove the mode of cladding material and handle, need provide and remove the plating place to the shielding ring removes to plate many times the back can influence the later stage and use and scrap, and the cladding material also can't be retrieved and along with the waste liquid discharges, causes very big waste.

Furthermore, the universal compensation device also comprises a positioning sleeve, a positioning pin matched with the mounting threaded hole on the workpiece is mounted on the positioning sleeve, the positioning sleeve is positioned by the positioning pin to be concentric with the workpiece, and the upper shielding ring is concentrically arranged in the positioning sleeve and is concentrically matched with the workpiece in the same diameter by the positioning sleeve;

the mounting threaded hole on the workpiece refers to a threaded hole on the end face of the workpiece, the positioning sleeve aims to ensure that the positioning sleeve is concentric with the workpiece by utilizing the matching between the positioning pin and the mounting threaded hole (the positioning pin is inserted into the threaded hole to form positioning), and the upper shielding ring is mounted in the inner circle of the positioning sleeve so as to form coaxial matching with the workpiece in the same diameter;

the specific installation process is as follows: the reducing compensation part is positioned on a bottom plate (a sealing ring can be used, EVA foam can be adopted for the sealing ring at the position), the lower shielding ring is positioned on the reducing compensation part, a sealing part (the sealing mode is not limited) can be arranged between the lower end and the reducing compensation part, the sealing ring is positioned on the upper end face of the lower shielding ring at a set position, a workpiece is placed on the lower shielding ring, the upper shielding ring is positioned through the positioning sleeve, and the pressing device is used for pressing.

Furthermore, the workpiece is in abutting contact with the upper shielding ring and the lower shielding ring to form radial sealing, and the radial sealing means that a sealing ring is arranged on the end face to prevent liquid from leaking in the radial direction.

Furthermore, a step for mounting the lower shielding ring is arranged in the inner circle of the reducing compensation part, and the inner diameter of the step is larger than that of the lower shielding ring, so that the stable flow of electroplating liquid is ensured; the upper shielding ring is coaxially arranged on the inner circle of the positioning sleeve;

the part directly contacted with the cylinder body is generally sealed by an acid and alkali resistant fluororubber sealing ring, such as the sealing between the upper and lower shielding rings and the workpiece, so that the sealing is ensured, and meanwhile, the tight contact between the shielding rings and the workpiece cylinder body can be ensured to successfully transfer burrs; the sealing which is not in direct contact with the workpiece adopts EVA foam (such as between a lower shielding ring and a reducing compensation part) so as to reduce the clamping action of an operator for placing/taking out the rubber ring and improve the clamping efficiency; as shown in the figure, be equipped with on the bottom plate and be used for placing the bottom plate location in electroplating device's locating hole, workpiece mounting in the utility model discloses afterwards, will the utility model discloses a frock moves to electroplating device and goes up through the empty protruding cooperation of location on the device of locating hole, guarantees the plating solution runner cooperation of settling position and device, guarantees the normal clear of electroplating.

The utility model has the advantages that: the utility model discloses a general type compensation arrangement of circulation electroplating, after the work piece is installed, through the supporting utility model discloses adjust the overall height and form the cooperation with the positive pole with the work piece, different work pieces do not need to change the positive pole, therefore also need not to stop the production line, change different work pieces and directly install in this frock and lay in electroplating device can, the supporting general type compensation arrangement can also compensate the different internal diameters of different work pieces and the installation difference between the bottom plate, form in height and in the commonality in diameter; therefore, the utility model is used for cylinder body external bath electroplates and has the commonality, is suitable for the work piece of various sizes, realizes "seamless switching" of product, avoids stopping the productivity loss of line, satisfies the delivery demand rapidly, reduces the switching time of ripe product to minimum, falls to the productivity loss minimum.

Drawings

The invention is further described with reference to the following figures and examples.

FIG. 1 is a sectional view of the structure of the present invention;

FIG. 2 is an enlarged view of FIG. 1A;

FIG. 3 is an enlarged view of FIG. 1B;

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

fig. 5 is a perspective view of the utility model.

Detailed Description

Fig. 1 is the utility model discloses a structural section, fig. 2 is the enlarger of fig. 1A department, and fig. 3 is the enlarger of fig. 1B department, and fig. 4 is the utility model discloses use structure section perspective, fig. 5 is the utility model discloses use the structure stereogram, as shown in the figure: the present invention will be described in detail with reference to the application structure of the present invention; the compensation device of the general type for cyclic plating of the present embodiment is used for mounting a workpiece and mounting and pressing the workpiece after compensating in height and diameter, and is also used for introducing plating solution into a cylinder and for passing through an anode;

certainly, the utility model is matched with a mounting frame component when in use, and as shown in the figure, the mounting frame component comprises a fixing frame and a pressing component 1;

the fixing frame comprises a bottom plate and a frame fixed on the bottom plate;

the utility model is used for installing a workpiece, compensating the height and the diameter of the workpiece, installing the workpiece on the bottom plate and compressing the workpiece by the compressing component;

when the utility model is used, workpieces are fixed through the fixing frame after being installed on the tool, and are transferred to each electroplated station, the overall height is adjusted through the general compensation device matched with the workpieces to be matched with the anode, different workpieces 9 do not need to be changed the anode, so the production line does not need to be stopped, different workpieces are directly installed on the tool and are placed on the electroplating device, the matched general compensation device can also form transition between the workpieces and the electroplating device, the installation difference between different inner diameters and bottom plates of different workpieces is compensated, and the universality on the height and the diameter is formed;

the universal compensation device can adopt a cylindrical structure, 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, so that the universal compensation device is suitable for transition installation between the bottom plate and the workpiece and is not repeated herein; of course, the structure of the general compensation device is not necessarily cylindrical, and can be any shape for achieving the above purpose, and the description is omitted;

the compressing assembly is arranged on the fixing frame and used for compressing the workpiece and the general compensation device, so that the stability of the workpiece in the transportation process and the electroplating process is guaranteed, and the smoothness of the electric degree quality and the electroplating process is guaranteed.

In this embodiment, the universal compensation device includes a variable diameter compensation part 3, the variable diameter compensation part 3 is a cylinder with an axial through hole, the axial through hole of the variable diameter compensation part 3 is used for introducing electroplating solution and for passing through an anode, the lower ends of different variable diameter compensation parts 3 have the same external dimension, the upper ends have an internal diameter dimension adapted to the internal diameter of a corresponding workpiece, and the total height of the installed workpiece can be matched with the anode to complete electroplating; as shown in the figure, the fixed diameter size of the lower ends of different variable diameter compensation pieces can be matched with a standard tool for installation, the upper ends of the variable diameter compensation pieces correspond to the inner diameter of a corresponding workpiece (the same diameter is concentric), the total height of the variable diameter compensation pieces after the workpieces are installed enables the total height to be matched with the height of an anode to complete electroplating during use, and therefore the variable diameter compensation pieces are universal, and the workpieces are axially pressed on the variable diameter compensation pieces 3 by pressing assemblies; the reducing compensation part 3 is made of glass fiber reinforced plastic (certainly, other non-conductive materials with certain strength can be adopted, and the description is omitted), so that the reducing compensation part has an insulation effect and improves the electroplating efficiency.

The workpieces 9 (air cylinders) with different heights are provided with the variable-diameter compensation pieces 3 with different heights, so that the total height of the workpieces arranged in the utility model is not changed, and the workpieces can be matched with the height of the anode; the sizes of the lower parts of the variable-diameter compensation parts matched with different workpieces are the same, the variable-diameter compensation parts are used for being matched with a bottom plate channel of the fixing frame (the bottom plate is isolated from an electroplating environment) in a penetrating mode, the upper parts of the variable-diameter compensation parts are matched with the bottom plate channel of the bottom plate matched with the workpieces (different workpiece matching sizes have differences), transition between the inner diameters of the workpieces and an electroplating device is achieved, and pressing is achieved, and details are not repeated; the reducing compensation part 3 is made of glass fiber reinforced plastic (certainly, other non-conductive materials with certain strength can be adopted, and the description is omitted), so that the reducing compensation part has an insulation effect and improves the electroplating efficiency.

In this embodiment, the universal compensation device further comprises a shielding member, the shielding member comprises an upper shielding ring 7 and a lower shielding ring 10 which are made of non-metal conductive materials, the lower shielding ring 10 is coaxially embedded into the axial through hole of the variable diameter compensation member 3 and axially abuts against the lower end of the workpiece 9 in the same diameter, and the upper shielding ring 7 abuts against the upper end of the workpiece 9 in the same diameter and is axially compressed by the compression assembly 1; the reducing compensation part is made of non-conductive materials, so that a stable electroplating working condition is formed on a conductive part, and the waste of materials and the interference to the electroplating working condition are avoided; the same-diameter mutual abutting 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 and coaxial with the inner diameter of the workpiece 9, edge burrs generated in the electroplating process are led to the upper edge of the upper shielding ring and the lower edge of the lower shielding ring in the electroplating process so as to ensure the electroplating quality, and the upper shielding ring 7 and the lower shielding ring 10 are made of conductive materials, so that the description is omitted; of course, radial seals are required to be formed between the upper shielding ring 7 and the lower shielding ring 10 and the workpiece 9 (cylinder) to prevent the electroplating solution from leaking; the lower end face (contacted and abutted with the upper end face of the cylinder body) of the upper shielding ring 7 and the upper end face (contacted and abutted with the lower end face of the cylinder body) of the lower shielding ring 10 are respectively provided with a sealing ring 12 and a sealing ring 13 (an annular sealing ring groove can be arranged on the corresponding end face and is used for placing the sealing ring), the sealing ring is generally made of acid and alkali resistant fluororubber, and the purposes of sealing and contact abutment can be realized through external force compression deformation; the lower end of the inner circle of the upper shielding ring forms an annular chamfer, the upper end of the inner circle of the lower shielding ring forms an annular chamfer, and the chamfer structure can guide burrs to grow towards a sudden change position, so that the interference on electroplating of the cylinder body is avoided, and meanwhile, the structure is favorable for ensuring that the interference on the flow of electroplating solution is not generated; the upper shielding ring and the lower shielding ring are made of non-metal conductive materials (such as conductive rubber or plastics), when in actual use, the inner plating layer can be separated from the upper shielding ring and the lower shielding ring by using a small external force (because the binding force between the non-metal conductive materials and a metal plating layer is generally small), for example, the plating layer can be directly peeled off by using a sharp tool, or the upper shielding ring and the lower shielding ring can be deformed by using a small external force (such as hand holding) to peel off the plating layer, the non-metal conductive materials with the set elastic modulus can be deformed by using the non-metal conductive materials with the set elastic modulus, but can bear the pressing force of a workpiece during electroplating to ensure the smooth operation of the electroplating process, so that the plating layer and burrs of the inner circle of the shielding ring can be separated from the inner circle of the shielding ring, the shielding ring can be used for the second time, and, the consumption and the electroplating cost are reduced; and metallic shield ring (generally for aluminium) cladding material and burr and shielding ring combine closely, can't drop, adopt chemistry to remove the mode of cladding material and handle, need provide and remove the plating place to the shielding ring removes to plate many times the back can influence the later stage and use and scrap, and the cladding material also can't be retrieved and along with the waste liquid discharges, causes very big waste.

In this embodiment, the universal compensation device further includes a positioning sleeve 8, the positioning sleeve 8 is provided with a positioning pin 801 which is matched with the mounting threaded hole on the workpiece 9, and is positioned by the positioning pin 801 so that the positioning sleeve is concentric with the workpiece, and the upper shielding ring 7 is concentrically arranged in the positioning sleeve 8 and is concentrically matched with the workpiece 9 in the same diameter by the positioning sleeve 8;

the mounting threaded hole on the workpiece 9 refers to a threaded hole on the end face of the workpiece, the positioning sleeve aims to ensure that the positioning sleeve 8 is concentric with the workpiece by utilizing the matching between the positioning pin and the mounting threaded hole (the positioning pin is inserted into the threaded hole to form positioning), and the upper shielding ring 7 is mounted on the inner circle of the positioning sleeve so as to form coaxial matching with the workpiece in the same diameter; the locating pin generally is two at least, and this embodiment is two that the symmetry set up promptly, guarantees positioning accuracy.

The specific installation process is as follows: the reducing compensation part 3 is positioned and placed on the bottom plate 2 (a sealing ring can be used, the sealing ring can be made of EVA foam), the lower shielding ring 10 is placed on the reducing compensation part 3, a sealing part (the sealing mode is not limited) can be arranged between the lower end and the reducing compensation part 3, the sealing ring is placed on the upper end face of the lower shielding ring 10 to set the position, a workpiece is placed on the lower shielding ring, the upper shielding ring is placed after the positioning of the positioning sleeve, and the pressing device is used for pressing the lower shielding ring.

In the embodiment, the frame is provided with a fixed upper longitudinal beam 6, the pressing component 1 is arranged on the upper longitudinal beam 6, and a pressing part 5 which can be driven to reciprocate up and down is arranged for pressing or releasing a workpiece 9; the structure can adopt any existing mechanical structure, including manual or electric, and can be realized by adopting the existing mechanical structure, which is not described again; as shown in the figure, the frame includes four upright posts 4 detachably fixed on the bottom plate 2 (by bolts), two upright posts 4 are respectively disposed on two longitudinal sides (according to the arrangement direction of the plurality of workpieces), an upper cross beam 12 is fixedly connected between the upper portions of the two upright posts 4 (by bolts), and the upper longitudinal beam 6 is fixedly connected between the two upper cross beams 12 to form a stable structure of fixed connection, which is not described herein again.

In this embodiment, the pressing assembly 1 includes a pressing rod 101 capable of being driven to reciprocate up and down along the upper longitudinal beam 6 and a lever assembly for driving the pressing rod 101 to reciprocate, and the pressing portion 5 is located at the lower end of the pressing rod 101; the lever assembly comprises a driving lever (comprising a power arm 1021 and a resistance arm 1022) and a rocker arm, wherein the resistance end (namely the end part of the resistance arm) of the lever is rotatably hinged at the upper end of the pressing rod 101, the lower end of the rocker arm can rotate in a single degree of freedom relative to the upper longitudinal beam, and the upper end of the rocker arm is coaxially hinged with the fulcrum of the driving lever in a single degree of freedom rotation; a limiting block 104 is arranged on the rocker arm, and the limiting block 104 limits the lever to continue rotating towards the pressing direction when the lever is driven to drive the pressing rod 101 to press the workpiece;

the reciprocating motion of the pressing rod 101 is generally single degree of freedom, that is, only reciprocating motion is performed, the pressing part 5 can be integrally formed with the pressing rod 101 or can be detachably arranged in a split manner, in the embodiment, the pressing part with a plate-shaped structure is adopted, and the pressing part is generally movably connected with the end part of the pressing rod with a certain degree of freedom, such as a movable head like a ball hinge, so that the pressing end face can be adapted to, and the coaxiality of workpieces can be ensured;

the upper end of the rocker arm is hinged with the fulcrum of the driving lever through the fulcrum hinged shaft 14, the driving lever rotates around the fulcrum under the action of external force to enable the resistance arm 1022 to approach to be vertical from the transverse direction, so that the pressing rod 101 is driven to press a workpiece downwards, the rocker arm swings forwards around the hinged point at the lower end of the rocker arm under the transverse (no displacement) constraint of the pressing rod 101, when the resistance arm 1022 presses the workpiece, the fulcrum axis is at least intersected with the fulcrum hinged axis (the axis of the hinged shaft 14) or exceeds the hinged axis backwards, so that self-locking is formed, the lever is prevented from rotating under the reaction force, meanwhile, the limiting block limits the lever to rotate continuously in the pressing direction, so that the pressing rod is prevented from rotating continuously to drive the pressing rod to move upwards, and pressing self-locking is formed (namely, the mechanical structure formed by the pressing rod and the driving lever is similar to, thereby forming a self-lock).

In this embodiment, the pressing assembly 1 further includes a base, the base is fixed to the upper longitudinal beam 6, the pressing rod 101 is disposed on the base in a manner of single-degree-of-freedom up-and-down reciprocating motion, the two rocker arms are respectively arranged on two sides of the base (the rocker arm 1031 and the rocker arm 1032), the lower ends of the two rocker arms are coaxially hinged to the base, and the upper ends of the two rocker arms are respectively coaxially hinged to two sides of a fulcrum of the driving lever (i.e., the two rocker arms rotate coaxially with the; when the pressing rod 101 presses a workpiece through the pressing part, the axis of the pressing rod is intersected with or exceeds the axis of the fulcrum backwards, and at the moment, the limiting block supports against the resistance arm of the driving lever from the back side;

as shown in the figure, the base is fixed on the surface of the upper longitudinal beam 6 through a detachable structure, and a through hole for the compression rod to pass through is formed in the upper longitudinal beam 6; the base comprises a base plate 105 and a guide sleeve 107, the guide sleeve is provided with a guide slideway, the guide slideway is vertically arranged right opposite to the through hole on the upper longitudinal beam, and the pressing rod penetrates through the guide slideway and is matched with the guide slideway in a way of reciprocating up and down; the base plate 105 is detachably connected with the upper longitudinal beam 6 through a connecting hole (a bolt passes through, and a waist-shaped hole is generally adopted), so that the base plate has strong adaptability; the guide sleeve 107 is fixed on the base plate 105 through threaded connection, and the structure is simple; as shown in the figure, the lower end of the guide sleeve 107 is provided with external threads, and is screwed on the internal threads on the base plate 105 in a manner that the axis (the direction of the guide slideway) is vertical to the base plate 105 to form connection, and in order to avoid falling off, the connection is also locked by a locking nut 106; the pressing rod passes through the guide sleeve 107 along the vertical direction and is matched with the guide sleeve in a reciprocating motion (generally, the pressing rod has a single degree of freedom); the lower ends of the rocker arms 1031 and 1032 are symmetrically hinged to two sides of the guide sleeve 107 respectively, the structure is simple and practical, the whole locking assembly forms a module, and the hinged part is installed on the base plate after being completely processed;

the utility model provides a backward indicate the direction (the arrow in fig. 4) that drive lever 1022 swung when compressing tightly the work piece, the dorsal part then with backward corresponding one side, no longer describe herein.

Due to the action of the stopper 14, the resistance wall 1022 of the lever is prevented from further rotating, the rocker arm 1031 and the rocker arm 1031 cannot further rotate under the action of the stopper, that is, an interlock is formed, and the axis of the compression rod intersects with or goes back beyond the axis of the fulcrum (generally, the axes intersect), that is, a stable retraction mechanism is formed, and the release is avoided.

In this embodiment, the base is detachably and fixedly connected to the upper longitudinal beam 6, the driving lever is a right-angle structure taking a fulcrum as a boundary, the resistance arm 1022 forms a fork-shaped groove, the compression bar 101 is located in the fork-shaped groove and is hinged to the end of the resistance arm, the fork-shaped structure is beneficial to stable connection and does not apply a biasing force, so that the structure is stable and the service life is long; as shown in the figure, the driving lever is a right-angle structure (i.e. the power arm 1021 and the resistance arm 1022 are right-angled) using the fulcrum as a boundary, i.e. at the fulcrum, the power arm is bent forwards, so that the operation is convenient and the interference with the rocker arm (the limiting block) is avoided.

In this embodiment, the workpiece 9 is in tight contact with the upper shield ring 7 and the lower shield ring 10 to form a radial seal, which means that a seal ring is disposed on an end surface to prevent liquid from leaking in a radial direction.

In this embodiment, the reducing compensation part 3 is installed on the bottom plate 2 in a positioning manner and is coaxial with the bottom plate channel 201, a step for placing the lower shielding ring 10 is arranged on the inner circle, and the inner diameter of the step is larger than that of the lower shielding ring 10, so that the stable flow of the electroplating solution is ensured; the upper shielding ring 7 is coaxially arranged on the inner circle of the positioning sleeve 8, and the pressing component 1 presses the workpiece 9 through the upper shielding ring 7; the reducing compensation part 3 can be arranged on the bottom plate 2 in a positioning manner, and can adopt various mechanical structures, for example, an annular sinking groove is formed on a bottom plate channel 201 (the shape is the same as the radial overall dimension of the reducing compensation part, the reducing compensation part is arranged in the annular sinking groove to form transverse positioning, namely, a coaxial effect is achieved, or the reducing compensation part shown in the figure can be matched with the bottom plate channel through a shaft shoulder (stepped shaft) structure, namely, a small-diameter part penetrates through the bottom plate channel, and a shaft shoulder of a large-diameter part is pressed on the edge of the bottom plate channel to form positioning;

the part directly contacted with the workpiece (cylinder body) is generally sealed by an acid and alkali resistant fluororubber sealing ring, such as the sealing between the upper and lower shielding rings and the workpiece, so that the sealing is ensured, and meanwhile, the close contact between the shielding rings and the workpiece cylinder body can be ensured to successfully transfer burrs; the sealing which is not in direct contact with the workpiece adopts EVA foam (such as between a lower shielding ring and a reducing compensation part) so as to reduce the clamping action of an operator for placing/taking out the rubber ring and improve the clamping efficiency; as shown in the figure, be equipped with on the bottom plate and be used for placing the bottom plate location in electroplating device's locating hole, workpiece mounting in the utility model discloses a afterwards, will the utility model discloses a frock moves to electroplating device and goes up through the protruding 1101 cooperation of locating hole sky 202 and the location on the device 11, guarantees the plating solution runner cooperation of settling position and device, guarantees the normal clear of electroplating.

In the embodiment, the upper shielding ring and the lower shielding ring are both made of POM (polyoxymethylene) material and carbon powder, the addition proportion is less than or equal to 1% by mass, and about 0.4% is preferred, so that the conductive coating has good physical properties and chemical properties, good conductivity, easy shedding of the coating, long-term use without replacement and electroplating cost saving.

Because the plating layer can be stripped by a simple physical method, a deplating process is not needed, the shielding ring is hardly lost, the service life is long, the shielding ring can be continuously used for half a year to one year, and the low consumption cost for manufacturing the shielding ring every month can be reduced by over 75 percent; nitric acid is not used for stripping the shielding ring, the requirement of environmental protection is met, the stripping cost of the used nitric acid can be reduced by over 60 percent, the stripping time does not need to be waited, the nitric acid can be quickly put into the next round for use, and the nitric acid can be used for daily standby by 20 percent; no wastewater treatment pressure and corresponding cost are required; the stripped nickel layer can be recycled, thereby saving the field and reducing the cost.

The utility model discloses an extra-tank electroplating indicates the dynamic electroplating through forming the plating solution circulation and realizing outside the electroplating liquid groove, and no longer repeated here.

This embodiment is taking the engine cylinder body as an example, in fact the utility model discloses claimed technical scheme is not limited to the engine cylinder body, can also be the cylinder body that compressor cylinder, plunger pump cylinder body etc. have similar structure, and no longer the repeated description here.

Finally, although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the present invention can be modified or replaced by other means without departing from the spirit and scope of the present invention, which should be construed as limited only by the appended claims.

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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