Protective tool for electroplating of aeronautical parts
By using protective tooling consisting of a base, cover plate and conductive bolts, the problems of poor sealing and leakage during electroplating of aviation parts are solved, and stable conductivity and efficient electroplating effects are achieved.
Patent Information
- Application Number
- CN202510912595.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-07-02
- Publication Date
- 2025-09-26
AI Technical Summary
In the prior art, when electroplating aviation parts, the surface shape of the parts is complex and there are many corners. It is troublesome to use tape to seal the parts and the sealing effect is poor, resulting in low efficiency of protective measures and easy leakage.
A protective tooling including a base, a cover, clamping bolts and conductive bolts is used. The two sides of the parts are fastened by the base and the cover. The contact points between the conductive bolts and the through-holes of the parts are used as conductive contacts. Copper wire is wrapped during the electroplating process to ensure conductivity. Rubber gaskets and steel gaskets are used for sealing to prevent electrolyte leakage.
It achieves precise protection and stable conductivity during the electroplating process of aviation parts, improves the quality and efficiency of electroplating, and avoids the leakage and poor contact problems of traditional tape protection.
Smart Images
Figure CN120700565A_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the technical field of material surface electroplating treatment, and in particular to a protective tooling for electroplating of aviation parts. Background Art
[0002] The bearing seat material is 40CrNiMoA, and the parts are as shown in the attached figure of the instruction manual. Figure 6 As shown in the figure, this part, a critical component in an engine reduction gear, requires high corrosion resistance on its outer cylindrical end surface due to its specific service environment. To achieve this corrosion resistance, the outer cylindrical end surface is chrome-plated. At the same time, no residual plating is allowed on the remaining surface of the part, so the non-plated surface must be properly protected. Furthermore, the mounting points must have good electrical conductivity to ensure the stability of the electroplating process.
[0003] Therefore, when electroplating this part, tape and plug rods are usually used to seal the surface of the part that does not need to be electroplated. However, since the surface shape of the part is relatively complex and there are many corners, it is troublesome to use tape to seal it and the sealing effect is not good, resulting in low efficiency of protective measures when electroplating the part and the problem of easy leakage during the protection process. Summary of the Invention
[0004] The purpose of the present invention is to solve the problem that when electroplating the parts, tape and plug rods are usually used to seal the surfaces of the parts that do not need to be electroplated. However, since the surface shape of the parts is relatively complex and there are many corners, it is troublesome to use tape to seal and the sealing effect is poor, resulting in low efficiency of protective measures when electroplating the parts and easy leakage of protection during the protection process. A protective tooling for electroplating of aviation parts is proposed.
[0005] In order to achieve the above-mentioned purpose, the present invention adopts the following technical scheme: a protective tooling for electroplating of aviation parts, comprising a base, a clamping bolt and a cover plate, a part is arranged between the base and the cover plate, a convex ring is provided on one side of the part, two bumps and two convex pieces are respectively provided at the edge of the outer surface of the part, and through holes are respectively provided on the outer surface of the part where the convex pieces and the bumps are provided, and the shape and size of the outer surface of the end of the part away from the convex ring are adapted to the size and shape of the outer surface of the base and the cover plate, a groove is provided inside the base, and the outer surfaces of the base and the cover plate are both provided with circular holes for the clamping bolts to pass through, and the outer surface of the clamping bolt is threadedly connected with a nut.
[0006] Before assembly, first inspect and clean the components to confirm that the base, cover, clamping bolts, conductive bolts and other components are free of deformation and cracks, and that the threaded holes are not blocked. Use alcohol or acetone to clean the surface of the parts to remove oil and oxide film, and ensure that the electroplated and non-electroplated surfaces are free of impurities. Check the material and conductivity of the conductive bolts to ensure good contact. Align one end of the convex ring of the part with the groove of the base, and confirm that the depth of the groove matches the height of the convex ring to ensure that there is no shaking after the part is assembled. Insert the steel gasket and rubber gasket on the clamping bolt in sequence, with the steel gasket close to the bolt head and the rubber gasket close to the steel gasket to disperse the pressure and seal the bolt hole. Insert the clamping bolt through the circular hole of the base from the side of the base away from the groove, so that the bolt head fits the outer surface of the base. The steel gasket and rubber gasket are located between the base and the bolt head. Insert the convex ring end of the part into the groove of the base, ensuring that the edge of the part is aligned with the edge of the base, and the non-electroplated surface is completely covered between the base and the cover. Align the circular hole of the cover with the clamping bolt, slowly insert the bolt, so that the bottom end of the cover fits the other end surface of the part, adjust the position of the cover, and preliminarily align the positioning hole of the base with the threaded hole of the cover to ensure that both sides of the part are tightly closed without skew. Insert rubber gaskets and steel gaskets into the clamping bolts on the outside of the cover in sequence, with the rubber gasket close to the surface of the cover, tighten the nuts with a wrench, and follow the principle of alternating diagonal tightening to ensure that the base, parts, and cover are evenly stressed to avoid local extrusion and deformation. Check the tightness of the nuts to ensure that the tooling is not loose and the rubber gasket fully squeezes the sealed bolt hole to prevent electrolyte leakage. Screw the conductive bolt into the threaded hole of the cover and pass it through the through hole of the part until the tip of the bolt enters the positioning hole of the base, ensuring that the conductive bolt is in close contact with the inner wall of the through hole of the part. You can wrap it around the root of the bolt. Wrap the copper wire to enhance the conductivity and connect the positive pole of the electroplating power supply. Hang the assembled tooling to the anode hanger of the electroplating tank through the copper wire on the conductive bolt to ensure good conductivity. Set the parameters such as the plating solution composition, temperature, and current density according to the material of the part and the plating requirements. After powering on, observe the reaction in the electroplating tank to ensure that the side of the part to be electroplated is evenly bubbled without defects such as missing plating and pitting. The electroplating time is determined according to the plating thickness requirements. Avoid shaking the tooling during the process to cause poor contact. After the electroplating is completed, first unscrew the conductive bolt to separate it from the part through-hole and take it out. After taking out, store it properly to prevent loss. Loosen the nut of the clamping bolt, rotate the nut in the opposite direction until it is completely detached from the bolt, remove the steel gasket and rubber gasket, gently lift the cover to separate it from the part, be careful to avoid hitting the electroplated surface of the part, remove the part from the groove of the base, check whether there is electrolyte residue or plating attachment on the non-electroplated surface, rinse the base, cover, clamping bolts and other parts with clean water to remove residual electrolyte on the surface, dry and store in a dry environment to prevent rust, check whether the rubber gasket is aging or damaged, and replace it in time to ensure the sealing effect next time.
[0007] The rubber gasket must completely cover the edge of the bolt hole to ensure that the electrolyte does not penetrate into the non-electroplating surface during the electroplating process. The fitting surface between the parts and the base and cover must be tight to avoid leakage of the plating solution due to gaps. The contact points between the conductive bolts and the parts must be polished smooth to ensure a low-resistance connection and avoid uneven electroplating due to poor contact. When tightening the clamping bolts, avoid excessive force that may cause deformation of the parts and affect the conductive contact area. Wear protective gloves and goggles during the electroplating process to prevent the electrolyte from contacting the skin or splashing into the eyes. Handle the tooling with care when installing and disassembling to prevent damage to aviation parts due to collisions.
[0008] Through the above steps, the protective tooling can be effectively used to achieve precise protection and stable conductivity during the electroplating process of aviation parts, improve the quality and efficiency of electroplating, and avoid the leakage and poor contact problems of traditional tape protection.
[0009] Preferably, two positioning holes are provided on the outer surface of the base, and the positioning holes are located on opposite sides of the edge of the outer surface of the base. The positioning holes do not pass through the upper and lower ends of the base. Two threaded holes are provided on the outer surface of the cover plate, and the inner walls of the threaded holes are threadedly connected with conductive bolts.
[0010] Preferably, the conductive bolt is made of a material with good stability and conductivity, and the conductive bolt is made of a material with conductive properties.
[0011] Preferably, two steel washers are inserted into the outer surface of the clamping bolt.
[0012] Preferably, two rubber gaskets are sleeved on the outer surface of the clamping bolt.
[0013] Preferably, the depth of the groove on one side of the base is adapted to the height of the end of the part provided with the convex ring.
[0014] Preferably, the length of the clamping bolt is twice the total thickness of the base, parts and cover after assembly.
[0015] Preferably, it also includes a hanging component, wherein the hanging component is placed in the electroplating tank, and the hanging component lifts the clamping bolt through the pulling rope and immerses it in the electroplating solution of the electroplating tank.
[0016] Preferably, the hanging member further comprises a supporting portion, wherein the supporting portion suspends the pulling rope, the supporting portion comprises a plurality of retractable supporting legs, and a top plate supported by the retractable supporting legs, and the bottom of the top plate is fixed to the pulling rope.
[0017] Preferably, the bottom end of the pulling rope is equipped with a hook claw, the hook claw is elastic, and a slot is provided on the surface of the clamping bolt, and the hook claw is clamped inside the slot to fix the clamping bolt.
[0018] Preferably, the hooks are evenly distributed in a ring-shaped structure on the surface of the clamping bolt, and the ends of the hooks are bent upward.
[0019] Preferably, the bottom of the top plate is fixedly connected to an assembly seat, the interior of the assembly seat is rotatably connected to the first support arm, the side of the first support arm is provided with an assembly groove, the interior of the assembly groove is provided with a sliding groove, the interior of the assembly groove is provided with a sliding seat, the surface of the sliding seat is rotatably installed with a rotating seat, the rotating seat is slidably connected inside the sliding seat, one end of the sliding seat is fixedly connected to the second support arm, the side of the second support arm is provided with an oblique hook facing the bottom, and the surface of the sliding seat is provided with a spring pin, wherein the spring pin will retract into the sliding seat when subjected to pressing pressure, and will extend out of the sliding seat after the pressure is released. When the second support arm is fully extended out of the first support arm, the spring pin extends out and blocks the port of the first support arm.
[0020] Compared with the prior art, the advantages and positive effects of the present invention are:
[0021] 1. In the present invention, by providing a base and a cover, the base and the cover are respectively attached to the two sides of the part when the part is electroplated, and the base, the part and the cover are assembled and fastened by using the cooperation of clamping bolts and nuts, thereby solving the problem of easy leakage when such parts are protected by tape and plug rods. In addition, two conductive bolts are used to pass through two through holes on the outer surface of the part as conductive contacts, effectively solving the problem of electroplating instability caused by poor contact of the conductive points.
[0022] 2. In the present invention, the conductive bolt is screwed into the threaded hole of the cover plate and passed through the through hole of the part until the tip of the bolt enters the positioning hole of the base, ensuring that the conductive bolt is in close contact with the inner wall of the through hole of the part. Copper wire can be wrapped around the root of the bolt to enhance conductivity and connected to the positive pole of the electroplating power supply. The assembled tooling is hung to the anode hanger of the electroplating tank through the copper wire on the conductive bolt to ensure good conductivity. According to the material of the part (such as 40CrNiMoA) and the plating requirements (such as cadmium plating), the parameters such as the composition, temperature, and current density of the electroplating solution are set (for example, the temperature of the cadmium plating solution is controlled at 18-25°C and the current density is 1-3A / dm2). After power is turned on, the reaction in the electroplating tank is observed to ensure that the side of the part to be electroplated (not the base and cover plate covered area) is evenly bubbled without defects such as missing plating and pitting. The electroplating time is determined according to the thickness requirements of the plating layer (such as 5-10μm thickness of the cadmium plating layer, the electroplating time is about 30- 60 minutes), avoid shaking the tooling to cause poor contact during the process, after electroplating is completed, first unscrew the conductive bolt to separate it from the part through-hole, and store it properly after taking it out to prevent loss, loosen the nut of the clamping bolt, rotate the nut in the opposite direction until it is completely separated from the bolt, remove the steel gasket and rubber gasket, gently lift the cover to separate it from the part, and be careful to avoid collision with the electroplated surface of the part, remove the part from the groove of the base, check whether there is electrolyte residue or plating attachment on the non-electroplated surface, rinse the base, cover, clamping bolts and other components with clean water to remove residual electrolyte on the surface, store it in a dry environment after drying to prevent rust, check whether the rubber gasket is aging or damaged, and replace it in time to ensure the sealing effect next time. The protective tooling can be effectively used to achieve precise protection and stable conductivity in the electroplating process of aviation parts, improve electroplating quality and efficiency, and avoid leakage and poor contact problems of traditional tape protection. BRIEF DESCRIPTION OF THE DRAWINGS
[0023] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;
[0024] Figure 2 It is a schematic diagram of a partial three-dimensional structure of the present invention;
[0025] Figure 3 Schematic diagram of the end face structure of the protective tooling in the present invention;
[0026] Figure 4 It is a schematic diagram of the side cross-sectional three-dimensional structure of the base in the present invention;
[0027] Figure 5 Schematic diagram of the three-dimensional structure of the base of the present invention;
[0028] Figure 6 Schematic diagram of the three-dimensional structure of the cover plate of the present invention;
[0029] Figure 7 It is a schematic diagram of the three-dimensional structure of the parts of the present invention;
[0030] Figure 8 Schematic diagram of the assembly process of the protective tooling in the present invention
[0031] Figure 9 For the present invention Figure 1 Partial schematic diagram of
[0032] Figure 10 For the present invention Figure 1 Schematic diagram of partial disassembly.
[0033] Explanation of the accompanying reference numerals: 1. Base; 2. Groove; 3. Positioning hole; 4. Cover plate; 5. Threaded hole; 6. Parts; 7. Clamping bolt; 8. Steel gasket; 9. Rubber gasket; 10. Nut; 11. Conductive bolt; 12. Top plate; 13. Pull rope; 14. Hook; 15. Slot; 16. First support arm; 17. Second support arm; 18. Oblique hook; 19. Assembly seat; 20. Assembly groove; 21. Sliding groove; 22. Sliding seat; 23. Rotating seat; 24. Spring pin. DETAILED DESCRIPTION
[0034] like Figure 1-10 As shown, the present invention provides a protective tooling for electroplating of aviation parts, including a base 1, a clamping bolt 7 and a cover plate 4, a part 6 is arranged between the base 1 and the cover plate 4, a convex ring is arranged on one side of the part 6, two protrusions and two protrusions are respectively arranged at the edge of the outer surface of the part 6, and through holes are respectively opened on the outer surface of the part 6 where the protrusions and the protrusions are provided, and the shape and size of the outer surface of the end of the part 6 away from the convex ring are adapted to the size and shape of the outer surfaces of the base 1 and the cover plate 4, a groove 2 is opened inside the base 1, and circular holes for the clamping bolt 7 to pass through are opened on the outer surface of the clamping bolt 7, and a nut 10 is threadedly connected to the outer surface of the clamping bolt 7. When the part 6 is electroplated, the clamping bolt 7 is first passed through the base 1 from the side of the base 1 away from the groove 2, and then the convex ring end of the part 6 is tightened. Place it inside the groove 2 of the base 1 so that the edge of the outer surface of the part 6 fits against the edge of one end of the base 1, then pass the circular hole on the outer surface of the cover 4 through the clamping bolt 7 away from the end of the base 1 and put it on the outer surface of the clamping bolt 7, move the cover 4 so that the bottom end of the cover 4 fits against the outer surface of the part 6, align the relative positions of the base 1, part 6 and cover 4, and close both sides of the part 6 through the base 1 and cover 4, then put the nut 10 on the top of the clamping bolt 7, rotate the nut 10 to control the nut 10 to move downward on the outer surface of the clamping bolt 7, so that one end of the nut 10 fits against the top of the cover 4 to fix the relative positions between the base 1, part 6 and cover 4, and close both ends of the part 6 through the base 1 and cover 4 during the electroplating process, so that the side of the part 6 is exposed for electroplating.
[0035] Reference Figure 1-7As shown, in this embodiment: the outer surface of the base 1 is provided with two positioning holes 3, the positioning holes 3 are located on opposite sides of the edge of the outer surface of the base 1, the positioning holes 3 do not pass through the upper and lower ends of the base 1, the outer surface of the cover plate 4 is provided with two threaded holes 5, the inner wall of the threaded hole 5 is threadedly connected with a conductive bolt 11, after the base 1, the part 6 and the cover plate 4 are assembled by the clamping bolts 7 and the nuts 10, one end of the two conductive bolts 11 is respectively inserted into the two threaded holes 5 on the outer surface of the cover plate 4, and the conductive bolts 11 are rotated so that the conductive bolts 11 are threadedly connected to the inner wall of the threaded hole 5 and pass through the outer surface of the part 6. The through hole allows one end to enter the positioning hole 3 on the outer surface of the base 1, further tightening the connection and mutual position between the cover plate 4 and the part 6, thereby improving the protection effect. The conductive bolt 11 is made of a material with good stability and conductivity (can be pure copper). By setting the conductive bolt 11 to be made of a material with conductive properties, the contact point between the conductive bolt 11 and the part 6 is used as a conductive point when the conductive bolt 11 passes through the through hole on the outer surface of the part 6, and copper wire is wrapped around the root of the conductive bolt 11 for hanging, which effectively avoids the problem of electroplating instability caused by poor contact of the conductive point of the part 6.
[0036] Reference Figure 1-7 As shown, in this embodiment: two steel washers 8 are inserted into the outer surface of the clamping bolt 7. When assembling the protective tooling, before passing the clamping bolt 7 through the circular hole on the outer surface of the base 1, a steel washer 8 is sleeved on the outer surface of the clamping bolt 7 and moved to the head position of the clamping bolt 7. After the cover plate 4 is sleeved on the outer surface of the clamping bolt 7, another steel washer 8 is sleeved on the outer surface of the clamping bolt 7. After the protective tooling is assembled, the two steel washers 8 will be respectively located at the contact point between the head of the clamping bolt 7 and the base 1, and at the contact point between the nut 10 and the outer surface of the cover plate 4. The steel washer 8 can increase the contact area between the head of the clamping bolt 7 and the nut 10 and the surface of the base 1 and the cover plate 4, and the clamping bolt 7 and the nut 10 can be dispersed to cooperate with the base 1, the part 6 and the cover The pressure when the plate 4 is tightened can avoid indentation and deformation on the outer surface of the base 1 or the cover plate 4. The outer surface of the clamping bolt 7 is sleeved with two rubber gaskets 9. When assembling the protective tooling, before passing the clamping bolt 7 through the circular hole on the outer surface of the base 1, a rubber gasket 9 can be sleeved on one side of the steel gasket 8 sleeved on the outer surface of the clamping bolt 7. After the cover plate 4 is sleeved on the outer surface of the clamping bolt 7, another rubber gasket 9 is sleeved on the outer surface of the clamping bolt 7 and located below the steel gasket 8. After the protective tooling is assembled, the two steel gaskets 8 will be respectively attached to the outer surfaces of the base 1 and the cover plate 4. The rubber gasket 9 can be further sealed on the outside of the contact between the clamping bolt 7 and the circular hole on the outer surface of the base 1 and the cover plate 4 to prevent the electrolyte from entering the inside of the circular hole.
[0037] Reference Figure 1-6As shown, in this embodiment: the depth of the groove 2 located on one side of the base 1 is adapted to the height of the end of the part 6 provided with a convex ring. When the end of the part 6 provided with a convex ring is placed in the groove 2 inside the base 1, the end of the part 6 provided with a convex ring will rest against the inner wall of the groove 2, so that the part 6 will not shake when inside the groove 2, thereby improving the convenience of assembling the protective tooling. The length of the clamping bolt 7 is twice the total thickness of the base 1, part 6 and cover plate 4 after assembly. By setting the length of the clamping bolt 7 to twice the total length of the base 1, part 6 and cover plate 4 after assembly, the nut 10 can be put on the outside of the clamping bolt 7, so that the position of the nut 10 can be moved to loosen or tighten the tooling, thereby facilitating adjustment of the position of the part 6.
[0038] Reference Figure 1-10 As shown, in this embodiment: it also includes a hanging component, wherein the hanging component is placed in the electroplating tank, and the hanging component lifts the clamping bolt 7 through the pulling rope 13 and immerses it in the electroplating liquid of the electroplating tank, and the hanging component also includes a supporting part, wherein the supporting part lifts the pulling rope 13, and the supporting part includes a plurality of retractable supporting legs, and a top plate 12 supported by the retractable supporting legs, the bottom of the top plate 12 and the pulling rope 13 are fixed, and the bottom end of the pulling rope 13 is equipped with a hook 14, and the hook 14 is elastic, and a card slot 15 is provided on the surface of the clamping bolt 7, and the hook 14 is clamped in the card slot 15 to fix the clamping bolt 7, and the hook 14 is evenly distributed on the surface of the clamping bolt 7 in an annular structure, and the end of the hook 14 is bent upward, and the bottom of the top plate 12 is fixedly connected to the assembly seat 19, and the assembly seat The interior of 19 is rotatably connected to the first support arm 16, and an assembly groove 20 is provided on the side of the first support arm 16. A sliding groove 21 is provided inside the assembly groove 20, and a sliding seat 22 is provided inside the assembly groove 20. A rotating seat 23 is rotatably installed on the surface of the sliding seat 22, and the rotating seat 23 is slidably connected inside the sliding seat 22. One end of the sliding seat 22 is fixedly connected to the second support arm 17, and an oblique hook 18 is installed on the side of the second support arm 17 facing the bottom. A spring pin 24 is installed on the surface of the sliding seat 22, wherein the spring pin 24 will retract into the sliding seat 22 when subjected to pressing pressure, and will extend out of the sliding seat 22 after the pressure is released. When the second support arm 17 is fully extended from the first support arm 16, the spring pin 24 extends out to block the end of the first support arm 16.
[0039] When electroplating is required, the second support arm 17 is pulled out of the first support arm 16. When the second support arm 17 is fully pulled out, the spring pin 24 is first squeezed into the slide seat 21. When the second support arm 17 is fully pulled out, the spring pin 24 extends out of the slide seat 21. At this time, the lengths of the first and second support arms 16, 17 are fixed. The top plate 12 is supported by the fixed first and second support arms 16, 17. The pull rope 13 below the top plate 12 is clamped in the slot 15 with the hook 14 to lift the clamping bolt 7, thereby ensuring that it floats in the electroplating solution during the electroplating process and does not touch the bottom and affect the electroplating. The oblique hook 18 can hook on the bottom to provide support and fixation.
[0040] Working principle: When electroplating the part 6, first put a steel gasket 8 and a rubber gasket 9 on the outer surface of the clamping bolt 7 respectively and move them to the head position of the clamping bolt 7. Then, pass the clamping bolt 7 through the base 1 from the side away from the groove 2. Place one end of the convex ring of the part 6 inside the groove 2 of the base 1 so that the outer edge of the part 6 fits the edge of one end of the base 1. Then, pass the circular hole on the outer surface of the cover plate 4 through the end away from the base 1 and put it on the clamping bolt 7. 4, move the cover plate 4 so that the bottom end of the cover plate 4 fits on the outer surface of the part 6, align the mutual positions of the base 1, part 6 and the cover plate 4, and seal both sides of the part 6 through the base 1 and the cover plate 4. Then, put a rubber gasket 9 and a steel gasket 8 on the outer surface of the clamping bolt 7 in turn, put the nut 10 on the top of the clamping bolt 7, turn the nut 10 to control the nut 10 to move downward on the outer surface of the clamping bolt 7, so that the rubber gasket 9 under the nut 10 fits on the top of the cover plate 4, and put the base 1 , fix the mutual position between part 6 and cover plate 4, and finally insert one end of the two conductive bolts 11 into the two threaded holes 5 on the outer surface of cover plate 4 respectively, rotate the conductive bolt 11 so that the conductive bolt 11 is threadedly connected to the inner wall of the threaded hole 5 and passes through the through hole on the outer surface of part 6 so that one end enters the positioning hole 3 on the outer surface of base 1, and further tightens the connection and mutual position between cover plate 4 and part 6, so that when the conductive bolt 11 passes through the through hole on the outer surface of part 6, the contact point between the conductive bolt 11 and part 6 is used as the conductive point, and copper wire is wrapped around the root of the conductive bolt 11 for hanging. During the electroplating process, the two ends of part 6 are closed by base 1 and cover plate 4, so that the side of part 6 is exposed for electroplating. After the electroplating is completed, the conductive bolt 11 is rotated to fall off the inside of the threaded hole 5, and the nut 10 is rotated to remove the nut 10 from the outer surface of the clamping bolt 7, and the cover plate 4 is moved away from part 6 to remove the cover plate 4, and then the part 6 is taken out, and the assembly of the protective tooling is released for easy use next time.
[0041] The above description is only a preferred embodiment of the present invention and does not limit the present invention in other forms. Any technician familiar with the profession may use the technical content disclosed above to change or modify it into an equivalent embodiment with equivalent changes and apply it to other fields. However, any simple modification, equivalent change and modification of the above embodiment based on the technical essence of the present invention that does not deviate from the content of the technical solution of the present invention still falls within the protection scope of the technical solution of the present invention. In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.
Claims
1. A protective tooling for electroplating of aviation parts, characterized by: The invention comprises a base (1), a clamping bolt (7) and a cover plate (4); a part (6) is provided between the base (1) and the cover plate (4); a convex ring is provided on one side of the part (6); two protrusions and two convex pieces are respectively provided at the edge of the outer surface of the part (6); through holes are respectively provided on the outer surface of the part (6) where the convex pieces and the protrusions are provided; the shape and size of the outer surface of the end of the part (6) away from the convex ring are adapted to the size and shape of the outer surfaces of the base (1) and the cover plate (4); a groove (2) is provided inside the base (1); the outer surfaces of the base (1) and the cover plate (4) are both provided with circular holes for the clamping bolt (7) to pass through; and the outer surface of the clamping bolt (7) is threadedly connected with a nut (10).
2. The protective tooling for electroplating of aviation parts according to claim 1, characterized in that: The outer surface of the base (1) is provided with two positioning holes (3), the positioning holes (3) are located on opposite sides of the edge of the outer surface of the base (1), and the positioning holes (3) do not pass through the upper and lower ends of the base (1). The outer surface of the cover plate (4) is provided with two threaded holes (5), and the inner walls of the threaded holes (5) are threadedly connected with conductive bolts (11).
3. The protective tooling for electroplating of aviation parts according to claim 2, characterized in that: The conductive bolt (11) is made of a material with good stability and conductivity, and the conductive bolt (11) is made of a material with conductive properties.
4. The protective tooling for electroplating of aviation parts according to claim 3, characterized in that: Two steel washers (8) are inserted into the outer surface of the clamping bolt (7), and two rubber washers (9) are sleeved on the outer surface of the clamping bolt (7). The depth of the groove (2) on one side of the base (1) is adapted to the height of one end of the part (6) provided with a convex ring.
5. The protective tooling for electroplating of aviation parts according to claim 4, characterized in that: The length of the clamping bolt (7) is twice the total thickness of the base (1), the part (6) and the cover plate (4) after assembly.
6. The protective tooling for electroplating of aviation parts according to claim 1, characterized in that: It also includes a hanging component, wherein the hanging component is placed in the electroplating tank, and the hanging component lifts the clamping bolt (7) through a pulling rope (13) and immerses it in the electroplating liquid in the electroplating tank.
7. The protective tooling for electroplating of aviation parts according to claim 6, characterized in that: The hanging component also includes a support portion, wherein the support portion suspends a pulling rope (13), and the support portion includes a plurality of retractable supporting legs and a top plate (12) supported by the retractable supporting legs, and the bottom of the top plate (12) is fixed to the pulling rope (13).
8. The protective tooling for electroplating of aviation parts according to claim 6, characterized in that: The bottom end of the pulling rope (13) is equipped with a hook (14), and the hook (14) is elastic. A slot (15) is provided on the surface of the clamping bolt (7), and the hook (14) is clamped inside the slot (15) to fix the clamping bolt (7).
9. The protective tooling for electroplating of aviation parts according to claim 8, characterized in that: The hook claws (14) are evenly distributed on the surface of the clamping bolt (7) in a ring-shaped structure, and the ends of the hook claws (14) are bent upward.
10. The protective tooling for electroplating of aviation parts according to claim 9, characterized in that: The bottom of the top plate (12) is fixedly connected with an assembly seat (19), the interior of the assembly seat (19) is rotatably connected with a first support arm (16), a side of the first support arm (16) is provided with an assembly groove (20), the interior of the assembly groove (20) is provided with a sliding groove (21), the interior of the assembly groove (20) is provided with a sliding seat (22), the surface of the sliding seat (22) is rotatably mounted with a rotating seat (23), the rotating seat (23) is slidably connected with the interior of the sliding seat (22), and the sliding seat (21) is provided with a sliding seat (22). One end of the sliding seat (22) is fixedly connected to the second support arm (17), and an oblique hook (18) is installed on the side of the second support arm (17) facing the bottom. A spring pin (24) is installed on the surface of the sliding seat (22), wherein the spring pin (24) will retract into the sliding seat (22) when subjected to pressure, and will extend out of the sliding seat (22) after the pressure is released. When the second support arm (17) is fully extended from the first support arm (16), the spring pin (24) extends out to block the end of the first support arm (16).