Gear tooth electroplating shielding protection device and machining method thereof

Abstract

The invention discloses a gear tooth electroplating shielding protection device which comprises a protection block with elasticity and insulativity, the shape of the protection block is matched with that of a gear tooth, and a groove used for clamping the gear tooth is formed in the protection block. The invention further discloses a machining method of the protection device, and the machining method comprises the following steps: S1) determining parameters of the protection block according to gear teeth and parameters of the gear; s2) determining mold parameters according to the protection block parameter diagram; s3) processing a mold; s4) assembling the die; s5) trial-manufacturing a protection block; s6) trimming; s7) assembling on the gear teeth for electrocoppering processing trial; (S8) if the trial result meets the electroplating shielding protection requirement, mold parameters are fixed, and protection blocks are machined in batches; and if the trial result does not meet the electroplating shielding protection requirement, correcting the mold parameters, and then returning to the step S3. The device has the advantages of simple structure, convenience in use, high efficiency and the like.

Description

Technical Field

[0001] The present invention relates to the technical field of electroplating protection components, and in particular to a gear tooth electroplating shielding protection device and a processing method thereof. Background Art

[0002] During the processing of bevel gears, the gear teeth are exposed and the rest of the surface is electroplated with copper due to process requirements. At present, the main methods for protecting gear teeth include wax coating to protect gear teeth, insulating glue coating to protect gear teeth, tape wrapping, and the process of overall plating to protect other parts and then removing the copper layer of the gear teeth. Although these methods can basically achieve the shielding of gear teeth, they generally have the disadvantages of long time and low production efficiency. Summary of the invention

[0003] The technical problem to be solved by the present invention is to overcome the deficiencies of the prior art and provide a gear tooth electroplating shielding and protection device with simple structure, convenient use and high efficiency.

[0004] The present invention further provides a method for processing the above-mentioned gear tooth electroplating shielding protection device.

[0005] In order to solve the above technical problems, the present invention adopts the following technical solutions:

[0006] A gear tooth electroplating shielding protection device comprises a protective block with elasticity and insulation, the shape of the protective block is adapted to the shape of the gear tooth, and the protective block is provided with a groove for clamping the gear tooth.

[0007] As a further improvement of the above technical solution: inclined portions converging toward the middle are provided on both sides of the opening of the groove.

[0008] As a further improvement of the above technical solution: the inclination angle of the inclined portion is α, 14°≤α≤16°.

[0009] As a further improvement of the above technical solution: the length of the inclined portion is n, 3mm≤n≤5mm.

[0010] As a further improvement of the above technical solution: the width of the groove is E, the tooth width of the gear tooth is B, then 0.6mm≤BE≤1.6mm.

[0011] As a further improvement of the above technical solution: the length of the groove covering the root of the gear tooth is L, 1.5mm≤L≤2.5mm.

[0012] As a further improvement of the above technical solution: the wall thickness of the groove is h:

[0013] h=a+k×D

[0014] Among them: constant a is 2.525, coefficient k is 0.02~0.025, and D is the crown diameter of the gear tooth.

[0015] As a further improvement of the above technical solution: the protection block is a rubber protection block.

[0016] As a further improvement of the above technical solution: the Shore A hardness of the rubber protection block is 55-60.

[0017] A method for processing the above-mentioned gear tooth electroplating shielding protection device comprises the following steps:

[0018] S1) determining the protection block parameters according to the gear teeth and parameters;

[0019] S2) determining mold parameters according to the protection block parameter diagram;

[0020] S3) processing mold;

[0021] S4) combined mold;

[0022] S5) trial-produce protection blocks;

[0023] S6) trimming;

[0024] S7) Assemble on the gear teeth for trial copper electroplating;

[0025] S8) If the trial result meets the electroplating shielding protection requirements, the mold parameters are fixed and the protection blocks are processed in batches; if the trial result does not meet the electroplating shielding protection requirements, the mold parameters are corrected and then return to step S3.

[0026] Compared with the prior art, the advantages of the present invention are:

[0027] The gear tooth electroplating shielding and protection device disclosed in the present invention is designed in a contoured manner according to the shape of the gear teeth, and a protection block is processed using insulating materials. The gear teeth are wrapped with grooves on the protection block, and can be used for shielding and protection in the electroplating process. Since the protection block also has a certain degree of elasticity, it is convenient for quick installation and disassembly, which is beneficial to improving production efficiency, and can tightly wrap the gear teeth, thereby meeting the shielding and protection needs in the electroplating process.

[0028] The processing method of the gear tooth electroplating shielding protection device disclosed in the present invention first conducts trial production and trial use, and corrects the mold parameters according to the trial results. After the mold parameters are determined, batch processing is carried out, which is beneficial to ensure that the protection blocks processed in batches meet the shielding protection requirements during the electroplating process.

[0029] Other features and advantages of the present invention will be described in detail in the following detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 It is a schematic cross-sectional view of the gear tooth electroplating shielding protection device of the present invention.

[0031] Figure 2 It is a structural schematic diagram of the present invention used in the gear electroplating processing process.

[0032] The reference numerals in the figure indicate: 1, protection block; 11, groove; 12, inclined portion; 2, gear teeth;

[0033] B, tooth width; δ, cone angle; δa, face cone angle; δf, root cone angle; β, back cone angle (perpendicular to δ); D, wheel crown diameter;

[0034] α, inclination angle of the bevel;

[0035] h, groove wall thickness;

[0036] m, interference;

[0037] n, bevel length;

[0038] L, length covering the tooth root;

[0039] E, inner width of groove, E = B-2m;

[0040] F. Protection block width, F=E+2h. DETAILED DESCRIPTION

[0041] In the description of the present invention, it should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0042] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0043] In the present invention, unless otherwise clearly specified and limited, the terms "assemble", "connect", "connect", "fix" and the like 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 an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0044] The present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0045] Embodiment 1

[0046] Figure 1 to Figure 2 An embodiment of the gear tooth electroplating shielding protection device of the present invention is shown. The gear tooth electroplating shielding protection device of this embodiment includes a protective block 1 with elasticity and insulation. The shape of the protective block 1 is adapted to the shape of the gear tooth 2. The protective block 1 is provided with a groove 11 for clamping the gear tooth 2.

[0047] The gear tooth electroplating shielding and protection device of the present embodiment is designed in a contoured manner according to the shape of the gear tooth 2, and the protection block 1 is processed using an insulating material. The gear tooth 2 is wrapped around the groove 11 on the protection block 1, and can be used for shielding and protection during the electroplating process. Since the protection block 1 also has a certain degree of elasticity, it is convenient for quick installation and disassembly, which is beneficial to improving production efficiency, and can tightly wrap the gear tooth 2, thereby meeting the shielding and protection needs during the electroplating process.

[0048] Furthermore, in this embodiment, both sides of the opening of the groove 11 are provided with inclined portions 12 that converge toward the middle. Figure 2 The opening of the groove 11 is brought together toward the middle by the inclined portions 12 on both sides, which helps to ensure the sealing of the opening of the groove 11 and prevent the electroplating solution from leaking into the groove 11 .

[0049] Preferably, the inclination angle of the bevel portion 12 is α, 14°≤α≤16°, which is conducive to ensuring the sealing at the opening of the groove 11 on the one hand, and is conducive to the installation and removal of the protection block 1 on the gear 2 on the other hand (if the angle is too small, it is not conducive to ensuring the sealing; if the angle is too large, it is difficult to install and remove the protection block 1). In this embodiment, α=15°.

[0050] Preferably, the length of the inclined portion 12 is n, 3mm≤n≤5mm, which is conducive to maintaining the sealing between the groove 11 and the gear tooth 2 on the one hand, and is conducive to the installation and removal of the protection block 1 on the gear tooth 2 on the other hand (if the length is too short, it is not conducive to ensuring the sealing; if the length is too long, it is difficult to install and remove the protection block 1). The specific value of n can be adjusted according to the tooth height.

[0051] Furthermore, in this embodiment, the width of the groove 11 is E, and the tooth width of the gear tooth 2 is B, then 0.6mm≤BE≤1.6mm, that is, the interference m in the tooth width direction of the gear tooth 2 is 0.3mm~0.8mm, which is beneficial to the close fit between the bottom of the groove 11 and the gear tooth 2 on the one hand, and on the other hand, it is beneficial to the installation and disassembly of the protective block 1 on the gear tooth 2 (if the groove 11 is too wide, it is not conducive to ensuring the sealing; if the groove 11 is too narrow, the installation and disassembly of the protective block 1 is difficult).

[0052] Furthermore, in this embodiment, the length of the groove 11 covering the tooth root of the gear 2 is L, 1.5mm≤L≤2.5mm. The depth of the groove 11 is set to be slightly greater than the height of the gear 2, which is conducive to fully wrapping the gear 2 and ensuring the shielding protection effect during the electroplating process.

[0053] Furthermore, in this embodiment, the wall thickness of the groove 11 is h:

[0054] h=a+k×D

[0055] Where: constant a is 2.525, coefficient k is 0.02-0.025, and D is the crown diameter of the gear (2). This formula can be used to determine the appropriate wall thickness of the groove 11, avoiding being too thick or too thin (if it is too thick, the protective block 1 has good rigidity but poor elasticity, and it is difficult to install and remove the protective block 1; if it is too thin, the protective block 1 has good elasticity but poor rigidity, which is not conducive to ensuring the sealing effect between the protective block 1 and the gear 2).

[0056] In this embodiment, the protective block 1 is a rubber protective block. The rubber material has both certain elasticity and good insulation, which is conducive to meeting the needs of shielding protection. Preferably, the protective block 1 is made of acid- and alkali-resistant rubber material to avoid being corroded by the electroplating solution too quickly, which affects the service life.

[0057] As a preferred embodiment, the Shore A hardness of the rubber protection block is 55-60. This appropriate hardness is conducive to ensuring the sealing effect between the protection block 1 and the gear 2, and on the other hand, avoiding making the installation and removal of the protection block 1 too difficult.

[0058] Embodiment 2

[0059] A method for processing the above-mentioned gear tooth electroplating shielding protection device comprises the following steps:

[0060] S1) determining the parameters of the protection block 1 according to the parameters of the gear tooth 2;

[0061] S2) determining mold parameters according to the parameter diagram of protection block 1;

[0062] S3) processing mold;

[0063] S4) combined mold;

[0064] S5) trial-produce protection block 1;

[0065] S6) trimming;

[0066] S7) assembling on gear tooth 2 for copper electroplating trial;

[0067] S8) If the trial result meets the shielding protection requirements of electroplated copper (of course, it can also be used for other types of electroplating processes), the mold parameters are fixed and the protection blocks 1 are processed in batches; if the trial result does not meet the shielding protection requirements of electroplated copper, the mold parameters are corrected and the process returns to step S3. Usually, after 1-2 rounds of trials, the design parameters of the mold can be fixed and the newly processed protection blocks 1 can meet the requirements.

[0068] The processing method of the gear tooth electroplating shielding protection device of this embodiment first conducts trial production and trial use, and corrects the mold parameters according to the trial results. After the mold parameters are determined, batch processing is carried out, which is beneficial to ensure that the batch-processed protection block 1 meets the shielding protection requirements during the electroplating process.

[0069] Although the present invention has been disclosed as above with preferred embodiments, it is not intended to limit the present invention. Any technician familiar with the art can make many possible changes and modifications to the technical solution of the present invention by using the technical content disclosed above without departing from the scope of the technical solution of the present invention, or modify it into an equivalent embodiment of equivalent changes. Therefore, any simple modification, equivalent change and modification made to the above embodiments according to the technical essence of the present invention without departing from the content of the technical solution of the present invention should fall within the scope of protection of the technical solution of the present invention.

Claims

1. A gear tooth electroplating shielding protection device, characterized in that: It comprises a protective block (1) with elasticity and insulation properties. The shape of the protective block (1) is adapted to the shape of the gear teeth (2). The protective block (1) is provided with a groove (11) for clamping the gear teeth (2).

2. The gear tooth electroplating shielding protection device according to claim 1, characterized in that: Sloped portions (12) that converge toward the middle are provided on both sides of the opening of the groove (11).

3. The gear tooth electroplating shielding protection device according to claim 2, characterized in that: The inclination angle of the inclined portion (12) is α, 14°≤α≤16°.

4. The gear tooth electroplating shielding protection device according to claim 3, characterized in that: The length of the inclined portion (12) is n, 3mm≤n≤5mm.

5. The gear tooth electroplating shielding and protection device according to claim 1, characterized in that: The width of the groove (11) is E, and the tooth width of the gear tooth (2) is B, then 0.6 mm ≤ BE ≤ 1.6 mm.

6. The gear tooth electroplating shielding and protection device according to claim 1, characterized in that: The length of the groove (11) covering the tooth root of the gear tooth (2) is L, and 1.5 mm≤L≤2.5 mm.

7. The gear tooth electroplating shielding and protection device according to claim 1, characterized in that: The wall thickness of the groove (11) is h: h=a+k×D Wherein: constant a is 2.525, coefficient k is 0.02-0.025, and D is the crown diameter of the gear (2).

8. The gear tooth electroplating shielding and protection device according to any one of claims 1 to 7, characterized in that: The protection block (1) is a rubber protection block.

9. The gear tooth electroplating shielding and protection device according to claim 8, characterized in that: The Shore A hardness of the rubber protection block is 55-60.

10. A method for processing the gear tooth electroplating shielding protection device according to any one of claims 1 to 9, characterized in that: The following steps are included: S1) determining parameters of the protection block (1) according to parameters of the gear teeth (2); S2) determining mold parameters according to the parameter diagram of the protection block (1); S3) processing mold; S4) combined mold; S5) trial-producing a protection block (1); S6) trimming; S7) is assembled on the gear teeth (2) and subjected to copper electroplating processing trial; S8) If the trial result meets the electroplating shielding protection requirements, the mold parameters are fixed and the protection blocks (1) are processed in batches; if the trial result does not meet the electroplating shielding protection requirements, the mold parameters are corrected and then return to step S3.

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