A design method for high-strength honed gears dressed with diamond

Abstract

This application relates to a design method for a high-power honing diamond dressing gear. Based on the tooth parameters, surface roughness, structure, and fixture installation scheme of the gear being processed, the design parameters of the diamond dressing gear and its substrate, the particle size of the diamond particles, and the shaping parameters of the diamond dressing gear and its substrate are determined. The tooth profile and tooth direction of the gear being processed are correspondingly manufactured on the tooth surface of the diamond dressing roller, ensuring that the designed diamond dressing gear is more precise, more suitable for dressing honing wheels, and better meets the gear parameter requirements of the gear being processed.

Description

Technical Field

[0001] This application relates to the field of gear grinding technology, and more specifically, to a design method for diamond dressing of powerful honing gears. Background Technology

[0002] Power honing is a high-precision gear grinding technology. Compared to worm gear grinding and profile grinding, its advantages lie in its superior surface quality (roughness, residual compressive stress, machining texture, etc.) and wide range of applications (it can be used for grinding shaft parts with structural limitations). The application of high-speed motors in electric drive systems of new energy vehicles further expands the prospects for gear honing. Diamond dressing gears for honing are one of the key tools in power honing. Utilizing the principle of honing grinding error replication, the tooth profile and tooth direction of the gear to be processed are correspondingly manufactured on the tooth surface of a diamond dressing roller, which is used to dress the honing wheel. The honing wheel then grinds the gear to achieve the purpose of gear honing. However, existing technologies rarely involve the design of diamond dressing gears for honing. Summary of the Invention

[0003] To overcome at least one deficiency in the prior art, this application provides a design method for diamond dressing gears used for high-power honing.

[0004] Firstly, a design method for high-performance diamond-treated gears is provided, including:

[0005] The design parameters of the diamond dressing gear are determined based on the tooth parameters and structure of the gear being machined, and the fixture installation scheme. The design parameters of the diamond dressing gear include the number of teeth Z0 and the inner diameter d. D0 Helix angle β0, outer diameter d a0 Diameter d of the initial shaping circle sap0 Diameter d of the modified termination circle eap0 , ... n0 and the root circle diameter d f0 ;

[0006] The particle size of the diamond particles used to manufacture diamond dressing gears is determined based on the surface roughness requirements of the gear being processed.

[0007] The dressing parameters for diamond dressed gears are determined according to the dressing requirements of the gears being processed; the dressing parameters include tooth profile dressing parameters and tooth direction dressing parameters.

[0008] The design parameters of the matrix are determined based on the design parameters of the diamond dressed gear and the particle size of the diamond particles.

[0009] The shaping parameters of the substrate are determined based on the shaping parameters of the diamond dressed gear; the shaping parameters of the substrate are consistent with the shaping parameters of the diamond dressed gear.

[0010] In one embodiment, the tooth parameters and structure of the gear being machined include the normal module m. n Number of teeth Z1, helix angle β1, pitch circle tooth thickness S n1 Effective starting position of involute, tooth tip circle diameter d a1 .

[0011] In one embodiment, the fixture mounting scheme includes mounting the diamond dressing gear with a fixture that mounts the expansion sleeve with an outer diameter d. D1 .

[0012] In one embodiment, the design parameters of the diamond dressing gear are determined based on the tooth parameters and structure of the gear being machined and the fixture installation scheme, including:

[0013] The design number of teeth Z0 of the diamond dressing gear is determined based on the number of teeth Z1 of the gear being machined, using the following formula:

[0014] Z0 = Z1

[0015] According to the installation scheme of the fixture, the outer diameter d of the expansion sleeve of the diamond dressing gear installation fixture is as follows: D1 Determine the inner diameter d of the diamond dressed gear. D0 The following formula is used:

[0016] d D0 =d D1

[0017] The helix angle β0 of the diamond dressing gear is determined based on the helix angle β1 of the gear being machined, using the following formula:

[0018] β0=β1

[0019] According to the tip circle diameter d of the gear being machined a1 Determine the outer diameter d of the diamond dressed gear a0 The following formula is used:

[0020] d a0 =(0.1~0.2)m n +d a1

[0021] Where, m n The normal module of the gear being machined;

[0022] Based on the effective starting circle diameter d of the gear being machined sap1 Determine the diameter d of the starting circle for dressing diamond dressed gears. sap0 The following formula is used:

[0023]

[0024] in, To design surplus value;

[0025] Based on the outer diameter d a0 Determine the diameter d of the dressing termination circle for diamond dressed gears. eap0 The following formula is used:

[0026] d eap0 =d a0

[0027] According to the pitch circle tooth thickness S of the gear being machined n1 Determine the pitch tooth thickness S of the diamond dressed gear n0 The following formula is used:

[0028] S n0 =S n1

[0029] Based on the outer diameter d a0 Determine the root circle diameter d of the diamond dressed gear. f0 :

[0030] d f0 =d a0 -(2.25~2.5)m n

[0031] Where, m n This is the normal module of the gear being machined.

[0032] In one embodiment, the tooth profile modification parameters are determined in the following manner:

[0033] Based on the coordinate points of the modified gear and the bulging amount Ca of the modified arc section of the gear, determine the coordinate equation of the modified arc section of the gear.

[0034] The diameter d of the starting circle for dressing the diamond-treated gear. sap0 Convert to vertical coordinates and substitute the vertical coordinates into the coordinate equation of the arc-shaped section of the gear being machined to obtain the shaping amount x4 at the arc-shaped termination circle of the diamond dressed gear.

[0035] The bulge amount Ca' and pressure angle correction amount fHa' of the arc-shaped section of the diamond dressed gear are calculated based on the shaping amount x4.

[0036] Based on the coordinate points of the modified gear and the slope of the circular arc modified segment of the diamond dressed gear at the modified coordinate points, determine the coordinate equation of the parabolic modified segment of the modified gear.

[0037] The diameter d of the finishing circle of the diamond dressed gear. eap0Convert the coordinates to the vertical direction and substitute the vertical coordinates into the coordinate equation of the parabolic shaping segment of the gear being processed to obtain the shaping amount x5 at the parabolic termination circle of the diamond dressed gear.

[0038] The tooth tip trimming amount fko' of the parabolic trimming segment of the diamond dressed gear is calculated based on the trimming amount x5.

[0039] In one embodiment, the tooth profile modification parameters are determined in the following manner:

[0040] Calculate the radius r of the arc for tooth-direction drum-shaped modification. β :

[0041]

[0042] Among them, C β1 fH represents the tooth profile of the machined gear. β1 B1 is the helix angle correction amount for the gear being machined, and B1 is the effective tooth width of the gear being machined.

[0043] Calculate the center coordinates of the tooth-direction drum-shaped modification arc (a) β ,b β ):

[0044] Based on the radius r of the arc for tooth-direction drum-shaped modification β and center coordinates (a) β ,b β Determine the circular equation for the tooth-shaped drum: (xa) β ) 2 +(yb β ) 2 =r β 2 ;

[0045] Based on the circular equation of the tooth profile and the tooth width B0 of the diamond dressed gear, determine the two coordinate points of the tooth profile line at the width. Where x'3 and x'4 are the x-coordinates of the two coordinate points, respectively;

[0046] Diamond dressing gear helix angle correction amount fH β0 The following formula is used to determine it:

[0047]

[0048] Diamond dressed gear tooth profile bulge C β0 The following formula is used to determine it:

[0049]

[0050] In one embodiment, the design parameters of the matrix are determined based on the design parameters of the diamond dressed gear and the particle size of the diamond particles, including:

[0051] The design parameters of the base include the number of teeth, inner diameter, helix angle, outer diameter, starting diameter of the modification circle, ending diameter of the modification circle, pitch circle tooth thickness, and root circle diameter; except for the pitch circle tooth thickness and outer diameter, the other parameters are consistent with the design parameters of diamond dressed gears.

[0052] outer diameter d of the base aj The following formula is used:

[0053] d aj =d a0 -2D

[0054] Where, d a0 D represents the outer diameter of the diamond dressing gear; D represents the particle size of the diamond particles in the diamond dressing gear.

[0055] The thickness S of the piezoelectric tooth of the substrate nj The following formula is used:

[0056] S nj =S n0 -D

[0057] Among them, S n0 To dress the pitch circle tooth thickness of diamond gears.

[0058] Secondly, a design device for high-power honing diamond-treated gears is provided, comprising:

[0059] The diamond dressing gear design parameter determination module is used to determine the design parameters of the diamond dressing gear based on the tooth parameters and structure of the gear being machined and the fixture installation scheme. The design parameters of the diamond dressing gear include the design number of teeth Z0 and the inner diameter d. D0 Helix angle β0, outer diameter d a0 Diameter d of the initial shaping circle sap0 Diameter d of the modified termination circle eap0 , ... n0 and the root circle diameter d f0 ;

[0060] The diamond layer particle size determination module is used to determine the particle size of the diamond particles used to manufacture diamond dressing gears based on the surface roughness requirements of the gear being processed.

[0061] The diamond dressing gear shaping parameter determination module is used to determine the shaping parameters of the diamond dressing gear according to the shaping requirements of the gear being processed; the shaping parameters include tooth profile shaping and tooth direction shaping.

[0062] The matrix design parameter determination module is used to determine the matrix design parameters based on the design parameters of the diamond dressed gear and the particle size of the diamond particles.

[0063] The substrate shaping parameter determination module is used to determine the substrate shaping parameters based on the shaping parameters of the diamond dressed gear; the substrate shaping parameters are consistent with the diamond dressed gear shaping parameters.

[0064] Thirdly, a computer-readable storage medium is provided, which stores a computer program that, when executed by a processor, implements the aforementioned design method for a diamond-treated gear for high-power honing.

[0065] Fourthly, a computer program product is provided, including a computer program / instruction, which, when executed by a processor, implements the above-described design method for a powerful honing diamond dressing gear.

[0066] Compared with the prior art, this application has the following beneficial effects: The design method of the diamond dressing gear for high-power honing of this application determines the design parameters of the diamond dressing gear and the base, the particle size of the diamond particles, and the modification parameters of the diamond dressing gear and the base according to the tooth parameters and structure of the gear to be processed and the installation scheme of the fixture. The tooth profile and tooth direction modification of the gear to be processed are correspondingly manufactured on the tooth surface of the diamond dressing roller, which ensures that the designed diamond dressing gear is more accurate, more suitable for dressing honing grinding wheels, and better meets the gear parameter requirements of the gear to be processed. Attached Figure Description

[0067] This application can be better understood by referring to the description given below in conjunction with the accompanying drawings, which, together with the detailed description below, are incorporated in and form part of this specification. In the drawings:

[0068] Figure 1 A schematic diagram of the structure of a diamond-treated gear for high-strength honing is shown;

[0069] Figure 2 A flowchart illustrating a design method for a high-strength honed diamond dressing gear according to an embodiment of this application is shown.

[0070] Figure 3 A schematic diagram of the tooth profile modification parameters is shown;

[0071] Figure 4 A schematic diagram of the tooth profile modification design is shown;

[0072] Figure 5 A structural block diagram of a design device for a high-power honing diamond dressing gear according to an embodiment of this application is shown. Detailed Implementation

[0073] Exemplary embodiments of the present application will be described below with reference to the accompanying drawings. For clarity and brevity, not all features of the actual embodiments are described in the specification. However, it should be understood that many embodiment-specific decisions can be made in the development of any such actual embodiment to achieve the developer’s specific objectives, and these decisions may vary as the embodiments differ.

[0074] It should also be noted that, in order to avoid obscuring this application with unnecessary details, only the device structure closely related to the solution according to this application is shown in the accompanying drawings, while other details that are not closely related to this application are omitted.

[0075] It should be understood that this application is not limited to the described embodiments by virtue of the following description with reference to the accompanying drawings. In this document, embodiments may be combined with each other, features may be substituted or borrowed between different embodiments, and one or more features may be omitted in one embodiment, where feasible.

[0076] Figure 1 A schematic diagram of the structure of a diamond-treated gear for high-strength honing is shown. (See attached diagram) Figure 1 A high-performance honing diamond-treated gear includes a base and a diamond electroplated layer, the diamond electroplated layer being disposed on the exterior of the base. The diamond electroplated layer is designed into a gear structure, hereinafter referred to as a diamond-treated gear. This application provides a design method for a high-performance honing diamond-treated gear, which is used to design the design parameters and shaping parameters of the diamond-treated gear and the base. Figure 2 A flowchart illustrating the design method for a high-strength honing diamond-cut gear according to an embodiment of this application is shown. See also... Figure 2 The method includes the following steps:

[0077] Step 1: Determine the design parameters of the diamond dressing gear based on the tooth parameters and structure of the gear being machined, and the fixture installation plan; the design parameters of the diamond dressing gear include the design number of teeth Z0, the inner diameter d, etc. D0 Helix angle β0, outer diameter d a0 Diameter d of the initial shaping circle sap0 Diameter d of the modified termination circle eap0 , ... n0 and the root circle diameter d f0 .

[0078] Specifically, the tooth parameters and structure of the gear being machined include the normal module m. n Number of teeth Z1, normal pitch circle pressure angle α n Helix angle β1, pitch circle tooth thickness S n1 Effective starting position of the involute (small radius of curvature ρ) 1minOr the effective starting circle diameter d sap1 (or the initial circle development angle), the effective termination position of the involute (maximum radius of curvature ρ) 1max Or the diameter d of the terminating circle eap1 (or termination circle development angle), tooth tip circle diameter d a1 Root circle diameter d f1 Tooth width B1.

[0079] The fixture installation scheme includes the installation of the diamond dressing gear fixture and the installation of the expansion sleeve with an outer diameter d. D1 The maximum permissible installation outer diameter d' of diamond dressed gears a The correction axis angle Σ when dressing diamond gears and honing grinding wheels.

[0080] Step 2: Determine the particle size of the diamond particles used to manufacture the diamond dressing gear based on the surface roughness requirements of the gear being processed.

[0081] Specifically, commonly used diamond particle sizes are: D91, D126, D151, D181, and D252 (D represents size, and the numbers represent particle size in micrometers). The particle size of the coated diamond is selected based on a comprehensive consideration of factors such as the surface roughness of the gear being machined, the electroplating process, the module of the honed diamond-dressed gear, and honing application experience. Larger diamond particles have a longer service life, but the surface roughness of the honed gear teeth is lower. For example, if the surface roughness of the gear being machined requires Ra0.4, it is recommended to use D151 diamond particles for manufacturing diamond-dressed gears. Table 1 shows the correspondence between the surface roughness of the machined gear and the diamond particle size:

[0082] Table 1. Correspondence between the surface roughness of the machined gear and the diamond particle size.

[0083] diamond particles D91 D126 D151 D181 D252 Surface roughness ≤Ra0.1 Ra0.2 Ra0.4 Ra0.6 Ra1.0

[0084] Step 3: Determine the dressing parameters for diamond dressed gears based on the dressing requirements of the gears being processed; the dressing parameters include tooth profile dressing parameters and tooth direction dressing parameters.

[0085] Step 4: Determine the design parameters of the matrix based on the design parameters of the diamond dressed gear and the particle size of the diamond particles;

[0086] Step 5: Determine the shaping parameters of the substrate based on the shaping parameters of the diamond dressing gear; the shaping parameters of the substrate are consistent with the shaping parameters of the diamond dressing gear.

[0087] In the above embodiments, the design parameters of the diamond dressing gear and the matrix, the particle size of the diamond particles, and the shaping parameters of the diamond dressing gear and the matrix are determined according to the tooth parameters and structure of the gear being processed and the installation scheme of the fixture. The tooth profile and tooth direction of the gear being processed are correspondingly manufactured on the tooth surface of the diamond dressing roller, ensuring that the designed diamond dressing gear is more accurate and more suitable for dressing honing wheels.

[0088] In one embodiment, determining the design parameters of the diamond dressing gear in step 1, based on the tooth parameters and structure of the gear being processed and the fixture installation scheme, may include:

[0089] The design number of teeth Z0 of the diamond dressing gear is determined based on the number of teeth Z1 of the gear being machined, using the following formula:

[0090] Z0=Z1 (1)

[0091] According to the installation scheme of the fixture, the outer diameter d of the expansion sleeve of the diamond dressing gear installation fixture is as follows: D1 Determine the inner diameter d of the diamond dressed gear. D0 The following formula is used:

[0092] d D0 =d D1 (2)

[0093] The helix angle β0 of the diamond dressing gear is determined based on the helix angle β1 of the gear being machined, using the following formula:

[0094] β0=β1 (3)

[0095] Here, the helix angle β0 of the diamond dressing gear is in the same direction as the direction of the gear being processed, so that the processing state of the gear being processed is consistent with the state of the diamond dressing gear.

[0096] According to the tip circle diameter d of the gear being machined a1 Determine the outer diameter d of the diamond dressed gear a0 The following formula is used:

[0097] d a0 =(0.1~0.2)m n +d a1 (4)

[0098] Where, m n The normal module of the gear being machined;

[0099] Based on the effective starting circle diameter d of the gear being machined sap1 Determine the diameter d of the starting circle for dressing diamond dressed gears. sap0 The following formula is used:

[0100]

[0101] in, To ensure sufficient margin, the size of this value should be selected according to the design parameters of the roughing tool, such as hobbing cutters, shearing cutters, and gear turning cutters, to ensure that no step is produced at the root of the gear being machined after the diamond dressing gear dressing honing wheel is used to hone it.

[0102] Based on the outer diameter d a0 Determine the diameter d of the dressing termination circle for diamond dressed gears. eap0 The following formula is used:

[0103] d eap0 =d a0 (6)

[0104] According to the pitch circle tooth thickness S of the gear being machined n1 Determine the pitch tooth thickness S of the diamond dressed gear n0 The following formula is used:

[0105] S n0 =S n1 (7)

[0106] Based on the outer diameter d a0 Determine the root circle diameter d of the diamond dressed gear. f0 :

[0107] d f0 =d a0 -(2.25~2.5)m n (8)

[0108] Where, m n This is the normal module of the gear being machined.

[0109] In one embodiment, Figure 3 A schematic diagram of the tooth profile modification parameter design is shown. (See attached diagram) Figure 3 The tooth profile modification parameters are determined in the following way:

[0110] First, based on the modified coordinate points of the gear and the crowning amount Ca of the modified arc section, the coordinate equation of the modified arc section of the gear is determined. Here, the three modified coordinate points of the gear are (x1, y1), (x2, y2), and (x3, y3), and the crowning amount Ca of the modified arc section is known. The coordinate equation of the modified arc section of the gear is determined according to the following formula:

[0111] (x1-a) 2 +(y1-b) 2 =r 2 (9)

[0112] (x2-a) 2 +(y2-b) 2 =r 2 (10)

[0113]

[0114] Based on the above three formulas, with the coordinate points (x1, y1) and (x2, y2) and the known amount of the bulge Ca of the arc-shaped section of the gear being machined, the center point (a, b) and radius r of the arc-shaped section can be obtained, thus yielding the coordinate equation of the arc-shaped section of the gear being machined.

[0115] Then, the diameter d of the starting circle for dressing the diamond dressing gear is... sap0 Convert to vertical coordinates y4, where y4 = d sap0 / 2, and substitute the vertical coordinate y4 into the coordinate equation of the arc-shaped section of the gear being machined to obtain the shaping amount x4 at the termination circle of the arc-shaped section of the diamond dressed gear. Here, the arc-shaped section of the diamond dressed gear is an extension section added to the arc-shaped section of the gear being machined. Therefore, by substituting the vertical coordinates into the coordinate equation of the arc-shaped section of the gear being machined, the horizontal coordinates can be obtained, which is the amount of the arc-shaped section at the end of the diamond dressed gear's arc-shaped section x4.

[0116] Then, based on the modification amount x4, calculate the camber amount Ca' and pressure angle correction amount fHa' of the arc modification section of the diamond dressed gear, for use in the design of the modification parameters on the drawing; here, the camber amount Ca' can be calculated using the following formula:

[0117]

[0118] The pressure angle correction fHa' = x2 - x4.

[0119] Then, based on the coordinate points of the modified gear and the slope of the circular arc modified segment of the diamond dressed gear at the modified coordinate points, the coordinate equation of the parabolic modified segment of the modified gear is determined according to the following formula:

[0120] a'y3 2 +b'y3+c'=x3 (13)

[0121] a'y2 2 +b'y2+c'=x2 (14)

[0122]

[0123] Given the coordinates (x2, y2) and (x3, y3), the slope of the arc-shaped section of the diamond dressed gear at the dressing coordinate point (x2, y2) can be used to obtain the coefficients a', b', and c' of the parabolic equation of the parabolic dressing section of the gear being machined, thus determining the coordinate equation of the parabolic dressing section of the gear being machined.

[0124] Then, the diameter d of the finishing circle of the diamond dressed gear is adjusted. eap0 Convert the coordinates to vertical coordinates y5, and substitute y5 into the coordinate equation of the parabolic shaping segment of the gear being machined to obtain the shaping amount x5 at the parabolic termination circle of the diamond dressed gear, where x5 = a'y5. 2 +b'y5+c'.

[0125] Finally, the tooth tip modification amount fko' of the parabolic modification segment of the diamond dressed gear is calculated based on the modification amount x5, where fko' = |x5-x2|.

[0126] In this embodiment, the determined tooth profile modification parameters include the bulging amount Ca' and pressure angle correction amount fHa' of the arc modification segment of the diamond dressed gear, and the tooth tip modification amount fko' of the parabolic modification segment of the diamond dressed gear.

[0127] In one embodiment, the tooth profile modification of the gear being machined is typically a drum-shaped modification. The drum-shaped tooth profile is formed by the machine tool moving along an arc trajectory during axial feed, machining the gear in the tooth width direction. Figure 4 A schematic diagram of tooth profile modification design is shown. The effective segment modification parameters of the diamond dressed gear can be designed by extending the effective modification width of the diamond dressed gear. For gears with asymmetrical modification of the left and right tooth surfaces, the tooth profile modification parameters of the diamond dressed gear can be designed separately for the left and right tooth surfaces. The tooth profile modification parameters can be determined in the following ways:

[0128] The tooth profile modification parameters of diamond dressed gears include the tooth profile bulge amount and the helix angle correction amount, which are determined using the following formula:

[0129] Given the tooth profile C of the gear being machined β1 Correction amount fH for the helix angle of the machined gear β1 The effective tooth width B1 of the gear being machined, and the tooth width B0 of the diamond dressed gear;

[0130] Calculate the radius r of the arc for tooth-direction drum-shaped modification. β :

[0131]

[0132] Calculate the center coordinates of the tooth-direction drum-shaped modification arc (a) β ,b β ):

[0133]

[0134]

[0135] According to formulas (16), (17) and (18), the center coordinates (a) can be obtained. β ,b β This allows us to determine the circular equation for the tooth-shaped drum:

[0136] (xa β ) 2 +(yb β ) 2 =r β 2 (17)

[0137] Given the tooth width B0 of a diamond dressed gear, according to Figure 4 We can obtain the two coordinate points of the tooth-shaped drum line in the width. Where x'3 and x'4 are the abscissas of the coordinate points; substituting the coordinate points into formula (17), we can solve for x'3 and x'4, and then the correction amount fH for the helix angle of the diamond dressed gear. β0 :

[0138] fH β0 =|x'4-x'3| (18)

[0139] Diamond dressed gear tooth profile bulge C β0 :

[0140]

[0141] In one embodiment, the substrate serves as the carrier for electroplated diamond. The tooth parameters are designed by comprehensively considering the final dimensions and the grinding accuracy of the post-electroplated tooth profile. For diamond dressed gears with complex tooth surface profiles, corresponding tooth direction and profile profiles must be ground on the substrate to ensure uniform diamond removal during tooth surface grinding after electroplating, thereby improving the service life of the finished honed diamond dressed gear. Step S4 determines the substrate design parameters based on the diamond dressed gear design parameters and the diamond particle size, including:

[0142] The design parameters of the base include the number of teeth, inner diameter, helix angle, outer diameter, starting diameter of the modification circle, ending diameter of the modification circle, pitch circle tooth thickness, and root circle diameter; except for the pitch circle tooth thickness and outer diameter, the other parameters are consistent with the design parameters of diamond dressed gears.

[0143] outer diameter d of the base aj The following formula is used:

[0144] d aj =d a0 -2D (20)

[0145] Where, d a0 D represents the outer diameter of the diamond dressing gear; D represents the particle size of the diamond particles in the diamond dressing gear.

[0146] The thickness S of the piezoelectric tooth of the substrate nj The following formula is used:

[0147] S nj =S n0 -D (21)

[0148] Among them, S n0 To dress the pitch circle tooth thickness of diamond gears.

[0149] Based on the same inventive concept as the design method for diamond dressing gears used in high-power honing, this embodiment also provides a corresponding design apparatus for diamond dressing gears used in high-power honing. Figure 5 A structural block diagram of a design apparatus for high-strength honing diamond dressing gears according to an embodiment of this application is shown, comprising:

[0150] The diamond dressing gear design parameter determination module 51 is used to determine the design parameters of the diamond dressing gear based on the tooth parameters and structure of the gear being machined and the fixture installation scheme. The design parameters of the diamond dressing gear include the design number of teeth Z0 and the inner diameter d. D0 Helix angle β0, outer diameter d a0 Diameter d of the initial shaping circle sap0 Diameter d of the modified termination circle eap0 , ... n0 and the root circle diameter d f0 ;

[0151] Diamond layer particle size determination module 52 is used to determine the particle size of diamond particles used to manufacture diamond dressing gears according to the surface roughness requirements of the gear being processed.

[0152] The diamond dressing gear shaping parameter determination module 53 is used to determine the diamond dressing gear shaping parameters according to the shaping requirements of the gear being processed; the shaping parameters include tooth profile shaping and tooth direction shaping.

[0153] The matrix design parameter determination module 54 is used to determine the matrix design parameters based on the design parameters of the diamond dressing gear and the particle size of the diamond particles.

[0154] The substrate shaping parameter determination module 55 is used to determine the substrate shaping parameters based on the shaping parameters of the diamond dressed gear; the substrate shaping parameters are consistent with the diamond dressed gear shaping parameters.

[0155] The design device for the powerful honing diamond dressing gear in this embodiment is consistent with the design method for the powerful honing diamond dressing gear described above. Therefore, the specific implementation of the device can be found in the method embodiment section above, and its technical effect corresponds to the technical effect of the above method, so it will not be repeated here.

[0156] This application provides a computer-readable storage medium storing a computer program that, when executed by a processor, implements a design method for a powerful honing diamond-treated gear.

[0157] This application provides a computer program product, including a computer program / instruction, which, when executed by a processor, implements the above-described design method for a powerful honing diamond dressing gear.

[0158] The above descriptions are merely various embodiments of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A design method for high-power honing diamond-treated gears, characterized in that, include: The design parameters of the diamond dressing gear are determined based on the tooth parameters and structure of the gear being processed and the installation scheme of the fixture. The design parameters of the diamond dressing gear include the number of teeth. Inner diameter helix angle outer diameter Diameter of the initial shaping circle Diameter of the modified termination circle , scalloped tooth thickness and root circle diameter ; The particle size of the diamond particles used to manufacture the diamond dressing gear is determined according to the surface roughness requirements of the gear being processed. The shaping parameters of the diamond dressed gear are determined according to the shaping requirements of the gear being processed; the shaping parameters include tooth profile shaping parameters and tooth direction shaping parameters. The design parameters of the matrix are determined based on the design parameters of the diamond dressing gear and the particle size of the diamond particles. The shaping parameters of the substrate are determined based on the shaping parameters of the diamond dressing gear; the shaping parameters of the substrate are consistent with the shaping parameters of the diamond dressing gear. The tooth profile modification parameters are determined in the following manner: Based on the profile coordinates of the gear being machined and the bulge amount of the arc profile section of the gear being machined. Determine the coordinate equation of the circular arc shaping segment of the gear being machined; Use the following formula: in, , , Let (a, b) be the coordinates of the three shaping coordinate points of the gear being machined, (a, b) be the center point of the circular arc shaping segment, and r be the radius of the circular arc shaping segment. The diameter of the starting circle for shaping the diamond dressing gear. The coordinates are converted to vertical coordinates, and these vertical coordinates are substituted into the coordinate equation of the arc-shaped section of the gear being processed to obtain the amount of modification at the termination circle of the arc-shaped section of the diamond dressed gear. The following formula is used: in, The coordinates are in the vertical direction; According to the amount of shaping Calculate the amount of bulging in the arc-shaped section of the diamond dressed gear. and pressure angle correction amount The following formula is used: Based on the coordinate points of the gear being machined and the slope of the arc-shaped section of the diamond dressed gear at the coordinate points, the coordinate equation of the parabolic section of the gear being machined is determined; the following formula is used: in, , , The coefficients of the parabolic equation for the parabolic shaping segment of the gear being machined are given. The arc-shaped dressing section of the diamond-cut gear at the dressing coordinate point The slope at that point; The diameter of the finishing circle of the diamond dressing gear. The coordinates are converted to vertical coordinates, and these vertical coordinates are substituted into the coordinate equation of the parabolic shaping segment of the gear being processed to obtain the shaping amount at the parabolic termination circle of the diamond dressed gear. The following formula is used: in, The coordinates are in the vertical direction; According to the amount of shaping Calculate the tooth tip modification amount of the parabolic modification segment of the diamond dressed gear. The following formula is used: ； The tooth profile modification parameters are determined in the following manner: Calculate the radius of the arc for tooth-direction drum-shaped modification. : in, The amount of tooth profile bulging on the machined gear. This is the correction amount for the helix angle of the gear being machined. The effective tooth width of the gear being machined; Calculate the center coordinates of the tooth-shaped convex modification arc. : ； The radius of the arc of the tooth-shaped drum-shaped modification. and the center coordinate point Determine the circular equation for the tooth-shaped drum: ; Based on the circular equation of the tooth-shaped drum and the diamond-treated gear tooth width Determine the two coordinate points of the tooth-shaped drum line in the width. , ,in, , These are the x-coordinates of the two coordinate points, respectively; Diamond dressing gear helix angle correction amount The following formula is used to determine it: Diamond dressing gear tooth profile bulging The following formula is used to determine it: ； Based on the effective starting circle diameter of the gear being machined Determine the diameter of the starting circle for the diamond dressing gear. The following formula is used: in, To design surplus value; Based on the outer diameter Determine the diameter of the trimming termination circle of the diamond dressing gear. The following formula is used: 。 2. The method as described in claim 1, characterized in that, The tooth parameters and structure of the gear being processed include the normal module. Number of teeth helix angle , scalloped tooth thickness Effective starting position of involute, tooth tip circle diameter .

3. The method as described in claim 1, characterized in that, The installation scheme of the fixture includes the outer diameter of the installation clamp for the diamond dressing gear and the installation expansion sleeve. .

4. The method as described in claim 1, characterized in that, in, The design parameters of the diamond dressing gear are determined based on the tooth parameters and structure of the gear being machined, and the installation scheme of the fixture, including: According to the number of teeth of the gear being machined Determine the design number of teeth for the diamond dressing gear. The following formula is used: According to the installation scheme of the fixture, the outer diameter of the installation expansion sleeve of the diamond dressing gear installation fixture is as follows: Determine the inner diameter of the diamond dressing gear. The following formula is used: According to the helix angle of the gear being machined Determine the helix angle of the diamond dressing gear. The following formula is used: According to the tip circle diameter of the gear being machined Determine the outer diameter of the diamond dressing gear The following formula is used: in, The normal module of the gear being machined; Based on the effective starting circle diameter of the gear being machined Determine the diameter of the starting circle for the diamond dressing gear. The following formula is used: in, To design surplus value; Based on the outer diameter Determine the diameter of the trimming termination circle of the diamond dressing gear. The following formula is used: According to the pitch circle tooth thickness of the gear being machined Determine the pitch tooth thickness of the diamond dressing gear. The following formula is used: Based on the outer diameter Determine the root circle diameter of the diamond dressed gear. : in, This is the normal module of the gear being machined.

5. The method as described in claim 1, characterized in that, in, Based on the design parameters of the diamond dressing gear and the particle size of the diamond particles, the design parameters of the matrix are determined, including: The design parameters of the base include the number of teeth, inner diameter, helix angle, outer diameter, starting diameter of the shaping circle, ending diameter of the shaping circle, pitch circle tooth thickness, and root circle diameter; except for the pitch circle tooth thickness and outer diameter, the other parameters are consistent with the design parameters of the diamond dressing gear. The outer diameter of the base The following formula is used: in, D is the outer diameter of the diamond dressing gear; D is the particle size of the diamond particles in the diamond dressing gear. The thickness of the piezoelectric teeth of the substrate The following formula is used: in, The pitch circle tooth thickness of the diamond dressing gear.

6. A design device for high-power honing diamond-cut gear dressing, characterized in that, Includes: The diamond dressing gear design parameter determination module is used to determine the design parameters of the diamond dressing gear based on the tooth parameters and structure of the gear being processed and the installation scheme of the fixture. The design parameters of the diamond dressing gear include the number of teeth. Inner diameter helix angle outer diameter Diameter of the initial shaping circle Diameter of the modified termination circle , scalloped tooth thickness and root circle diameter ; The diamond layer particle size determination module is used to determine the particle size of the diamond particles used to manufacture the diamond dressing gear according to the surface roughness requirements of the gear being processed. The diamond dressing gear shaping parameter determination module is used to determine the shaping parameters of the diamond dressing gear according to the shaping requirements of the gear being processed; the shaping parameters include tooth profile shaping parameters and tooth direction shaping parameters. The matrix design parameter determination module is used to determine the matrix design parameters based on the design parameters of the diamond dressing gear and the particle size of the diamond particles. The substrate shaping parameter determination module is used to determine the shaping parameters of the substrate based on the shaping parameters of the diamond dressing gear; the shaping parameters of the substrate are consistent with the shaping parameters of the diamond dressing gear. The device is used to implement the design method for high-strength honing diamond dressing gears as described in any one of claims 1-5.

7. A computer-readable storage medium, characterized in that, The computer-readable storage medium stores a computer program that, when executed by a processor, implements the design method for a high-strength honing diamond-treated gear according to any one of claims 1-5.

8. A computer program product, characterized in that, Includes a computer program / instruction, which, when executed by a processor, implements the design method for a high-strength honed diamond dressing gear as described in any one of claims 1-5.

Images