Piston rod earring rod head electroplating shielding tool

Abstract

The utility model relates to the technical field of piston rod lug ring electroplating shielding tools, in particular to a piston rod lug ring head electroplating shielding tool. According to the technical scheme, the device comprises a first baffle and a second baffle, a locking bolt is installed on the first baffle and penetrates through the center of the first baffle, the end of the locking bolt extends out of the second baffle and is in threaded connection with a locking nut, and an arc plate is fixed to the periphery of the side, close to the second baffle, of the first baffle. A first positioning block and a second positioning block are installed on the locking bolt and located between the first baffle and the second baffle. According to the utility model, the first baffle and the second baffle are used for locking, and the sealing plate is used for sealing the central hole of the earring of the plug rod, so that the side wall of the inner hole and the two side plane side walls can be freely and selectively shielded under the condition of ensuring normal electroplating of the outer arc-shaped side wall of the earring, and electroplating shielding can be carried out at a specified position according to actual electroplating requirements; and the tool practicability is improved.

Description

Technical Field

[0001] This utility model relates to the technical field of piston rod ear ring electroplating shielding fixtures, specifically a piston rod ear ring head electroplating shielding fixture. Background Technology

[0002] Electroplating is used to improve the surface quality, wear resistance, corrosion resistance and other properties of piston rods. This not only improves the surface quality of piston rods, but also enhances their performance. During the electroplating process, the piston rod is hung on a special fixture and electrolyzed in the plating tank to reduce and deposit chromium metal ions on the surface of the piston rod, forming a dense chromium layer.

[0003] In actual operation, not all surfaces of the piston rod's lugs need to be electroplated. The two side planes and the side wall of the central circular hole need to be selected for electroplating based on actual processing requirements. Therefore, during electroplating, a shielding fixture is needed to isolate the electroplating solution at the designated locations. However, different electroplating shielding fixtures are often required for different locations, resulting in relatively low overall practicality. Therefore, a universal electroplating shielding fixture needs to be designed. Utility Model Content

[0004] The purpose of this invention is to provide a piston rod ear ring rod head electroplating shielding tool to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: it includes a first baffle and a second baffle, a locking bolt is installed on the first baffle and through the center of the first baffle, the end of the locking bolt extends out of the second baffle and is threadedly connected to a locking nut, an arc plate is fixed on the outer periphery of the first baffle near the second baffle, a first positioning block and a second positioning block are installed on the locking bolt and between the first baffle and the second baffle, and a sealing plate is installed on both the first positioning block and the second positioning block.

[0006] Preferably, both the first baffle and the second baffle have an arc-shaped outer perimeter and a flat upper end. The arc-shaped baffle is fixed to the outer perimeter of the first baffle near the second baffle, and the diameter of the second baffle is smaller than the inner diameter of the arc.

[0007] Preferably, the inner wall of the bottom of the arc plate has a sloping structure and is inclined downward on the side near the second baffle, so as to facilitate the discharge of residual electroplating solution after it is removed from the electroplating solution.

[0008] Preferably, the locking bolt is threaded with a threaded sleeve, and the first positioning block is locked by the threaded sleeve. Before the locking nut is tightened, the position of the first positioning plate is fixed to increase the overall locking stability.

[0009] Preferably, the sealing plate is sleeved around the first positioning block and the second positioning block, and a sealing gasket is fixed on the inner wall of the sealing plate to reduce the risk of electroplating liquid entering the central hole of the piston rod lug.

[0010] Preferably, an annular plug is fixed on the sealing plate to ensure better insertion into the gap between the first positioning plate, the second positioning plate and the center hole of the piston rod lug.

[0011] Compared with the prior art, the beneficial effects of this utility model are: by using the locking of the first and second baffles, and the sealing plate to seal the center hole of the plug rod earring, the inner hole sidewall and the two side planar sidewalls can be freely shielded while ensuring normal electroplating of the outer arc-shaped sidewall of the earring. Electroplating shielding can be performed at specified locations according to actual electroplating requirements, increasing the practicality of the tooling. Attached Figure Description

[0012] Figure 1 This is a side cross-sectional view of the side wall of the inner hole of the piston rod ear ring when the piston rod ear ring electroplating shielding tool of this utility model is used for shielding.

[0013] Figure 2 This is a side cross-sectional view of the piston rod ear ring rod head electroplating shielding fixture of the present invention when synchronously shielding the inner hole and the two side planes;

[0014] Figure 3 This is a schematic diagram of the combined structure of the first and second baffles of the piston rod ear ring rod head electroplating shielding fixture of this utility model;

[0015] Figure 4 This is a schematic diagram of the combined structure of the second positioning block and the sealing plate of the piston rod ear ring rod head electroplating shielding tool according to the present invention.

[0016] In the diagram: 1. First baffle; 2. Second baffle; 3. Arc plate; 4. Locking bolt; 5. Locking nut; 6. First positioning block; 7. Threaded sleeve; 8. Second positioning block; 9. Sealing plate; 10. Annular plug; 11. Sealing gasket. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0018] Please see Figure 1This utility model provides a technical solution: including a first baffle 1 and a second baffle 2, a locking bolt 4 is installed on the first baffle 1 and through the center of the first baffle 1, the end of the locking bolt 4 extends out of the second baffle 2 and is threadedly connected to a locking nut 5, an arc plate 3 is fixed on the outer periphery of the first baffle 1 near the second baffle 2, a first positioning block 6 and a second positioning block 8 are installed on the locking bolt 4 and located between the first baffle 1 and the second baffle 2, and a sealing plate 9 is installed on both the first positioning block 6 and the second positioning block 8.

[0019] The outer periphery of the first baffle 1 and the second baffle 2 are both arc structures, and the upper end is a flat structure. The arc plate 3 is fixed to the outer periphery of the first baffle 1 near the second baffle 2. The diameter of the second baffle 2 is smaller than the inner diameter of the arc. The bottom inner wall of the arc plate 3 is a sloping structure and tilts downward near the second baffle 2. The locking bolt 4 is threaded with a threaded sleeve 7. The first positioning block 6 is locked by the threaded sleeve 7. The sealing plate 9 is sleeved around the first positioning block 6 and the second positioning block 8. The inner wall of the sealing plate 9 is fixed with a sealing gasket 11. The sealing plate 9 is fixed with an annular plug 10.

[0020] Working principle: First, sealing plates 9 are fitted onto both the first positioning block 6 and the second positioning block 8. Then, locking bolts 4 are passed through the first baffle 1 and the first positioning block 6, and the first positioning block 6 is locked in place using threaded sleeves 7. At this point, locking bolts 4 can be passed through the center hole of the piston rod lug and through the second positioning block 8. The sealing plate 9 on the second positioning block 8 is then fitted against the opening on the other side of the center hole of the piston rod lug. Finally, locking bolts 4 are passed through the second fixing plate and locked in place. At this point, the cooperation of the sealing plate 9, the first positioning block 6, and the second positioning block 8 secures the sealing plate 9 to the center hole of the piston rod lug. The end opening is sealed, allowing for electroplating shielding of the central hole sidewalls. Since the sealing plate 9 is positioned on both sides of the piston rod's lug, it ensures that the first baffle 1 and the second baffle 2 do not adhere to it, thus enabling normal electroplating of the two side surfaces. Conversely, when electroplating of the two side surfaces is not required, the sealing plate 9 can be simply removed from the first positioning block 6 and the second positioning block 8. After locking with the locking nut, the first baffle 1 and the second baffle 2 can be used to clamp and adhere to the two side surfaces of the piston rod lug. In this case, only the outer arc surface of the piston rod lug can be electroplated, eliminating the need for multiple sets of shielding fixtures, and the switching operation is very simple.

[0021] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0022] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A piston rod ear ring rod head electroplating shielding fixture, comprising a first baffle (1) and a second baffle (2), characterized in that: A locking bolt (4) is installed on the first baffle (1) and passes through the center of the first baffle (1). The end of the locking bolt (4) extends out of the second baffle (2) and is threaded with a locking nut (5). An arc plate (3) is fixed on the outer periphery of the first baffle (1) near the second baffle (2). A first positioning block (6) and a second positioning block (8) are installed on the locking bolt (4) and located between the first baffle (1) and the second baffle (2). A sealing plate (9) is installed on both the first positioning block (6) and the second positioning block (8).

2. The piston rod ear ring rod head electroplating shielding fixture according to claim 1, characterized in that: The outer periphery of the first baffle (1) and the second baffle (2) are both arc structures, and the upper end is a planar structure. The arc plate (3) is fixed on the outer periphery of the first baffle (1) near the second baffle (2). The diameter of the second baffle (2) is smaller than the inner diameter of the arc.

3. The piston rod ear ring rod head electroplating shielding fixture according to claim 1, characterized in that: The inner wall of the bottom of the arc plate (3) is a sloping structure, and it tilts downward on the side near the second baffle (2).

4. The piston rod ear ring rod head electroplating shielding fixture according to claim 1, characterized in that: The locking bolt (4) is threaded with a threaded sleeve (7), and the first positioning block (6) is locked by the threaded sleeve (7).

5. The piston rod ear ring rod head electroplating shielding fixture according to claim 1, characterized in that: The sealing plate (9) is sleeved around the first positioning block (6) and the second positioning block (8), and a sealing gasket (11) is fixed on the inner wall of the sealing plate (9).

6. The piston rod ear ring rod head electroplating shielding fixture according to claim 1, characterized in that: An annular plug (10) is fixed on the sealing plate (9).

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