Cutter head wire cutting tool and contour tooth dry cutting cutter head

Abstract

The application discloses a cutter disc linear cutting tool and a constant-height tooth dry cutting cutter disc, and belongs to the technical field of machining. The main purpose is to solve the problems of unstable positioning and electrode wire vibration deformation during linear cutting of the constant-height tooth dry cutting cutter disc rough blank, guarantee the cutter groove machining precision, reduce the rough blank rejection rate, improve the production efficiency and control the machining cost. The cutter disc linear cutting tool is used for positioning and clamping the constant-height tooth dry cutting cutter disc rough blank, and comprises a base, a retaining ring and a balancing pressing plate. The base is used for being installed on a linear cutting machine. The retaining ring is arranged on the upper surface of the base, and the inner wall of the retaining ring is in abutment with the small end outer wall of the constant-height tooth dry cutting cutter disc rough blank, so that the radial positioning of the constant-height tooth dry cutting cutter disc rough blank and the stable wire feeding of the electrode wire are realized. At least part of the balancing pressing plate is covered on the side of the constant-height tooth dry cutting cutter disc rough blank away from the base, and is used for being in abutment with the upper surface of the large end of the constant-height tooth dry cutting cutter disc rough blank, so that the constant-height tooth dry cutting cutter disc rough blank is tightly fixed on the base.

Description

Technical Field

[0001] This application belongs to the field of machining technology, specifically relating to a wire EDM tooling and a high-profile dry cutting tool. Background Technology

[0002] The radial dimension of the large end of the blank in the equal-height dry cutting head is larger than that of the small end. The large end is used to open several circumferential grooves. These grooves extend along the axial direction of the blank towards the small end, and their projection on the end face of the small end at least partially exceeds the radial range of the small end. This makes the blank positioning loose under the action of cutting force during wire EDM. The blank has a small probability of displacement during the movement of the machine tool. Due to the difference in diameter between the large and small ends, alternating stress is generated at the junction of the size difference of the electrode wire, which in turn causes the electrode wire to vibrate and shake. This shaking will cause the relative position of the wire EDM electrode wire and the blank to shift, which not only destroys the accuracy of the machining trajectory, but also causes the electrode wire to warp and twist under the combined action of alternating cutting force and vibration, affecting the surface finish of the machined surface. Ultimately, the dimensional and positional accuracy of the grooves in the machined blank does not meet the standards, which greatly increases the difficulty of subsequent tooth finishing and may even cause the blank to be scrapped, seriously affecting production efficiency and processing cost control. Summary of the Invention

[0003] In view of this, this application provides a wire EDM tooling and a constant-height tooth dry cutting tool head. The main purpose is to solve the problems of unstable positioning and electrode wire vibration deformation during rough wire EDM machining of blanks with a constant-height tooth dry cutting tool head, to ensure the machining accuracy of the cutting groove, reduce the scrap rate of the rough blank, improve production efficiency and control the machining cost.

[0004] To achieve the above objectives, this application mainly provides the following technical solutions: One aspect of this application provides a wire EDM fixture for positioning and clamping a rough blank from a high-tooth dry cutting head, the wire EDM fixture comprising: A base for mounting on a wire cutting machine; A retaining ring is disposed on the upper surface of the base, and the inner wall of the retaining ring is in close contact with the outer wall of the small end of the blank of the equal-height tooth dry cutting disc, so as to realize the radial positioning of the blank of the equal-height tooth dry cutting disc and the stability of the electrode wire feeding. A leveling plate, at least a portion of which covers the side of the equal-height tooth dry cutting disc blank away from the base, is used to fit and abut against the upper surface of the large end of the equal-height tooth dry cutting disc blank to press and fix the equal-height tooth dry cutting disc blank onto the base.

[0005] Optionally, the outer diameter of the retaining ring is equal to the outer diameter of the large end of the blank of the equal-height toothed dry cutting disc.

[0006] Optionally, the wire EDM fixture further includes: A shim block is fixedly disposed between the balancing pressure plate and the base, and located on the outer periphery of the retaining ring. The inner sidewall of the shim block abuts against the outer sidewall of the retaining ring to radially limit the retaining ring. At the same time, the shim block is used to support the balancing pressure plate.

[0007] Optionally, the balancing pressure plate includes: A clamping part is used to abut against the upper surface of the large end of the blank of the equal-height tooth dry cutting disc; A support portion is connected to the pressing portion, and one end of the support portion away from the pressing portion is in contact with the upper surface of the shim block to support the balancing pressure plate through the shim block.

[0008] Optionally, a threaded hole is provided on the base corresponding to the position of the shim block, and a bolt is adapted to be connected in the threaded hole; the bolt is arranged in a direction perpendicular to the upper surface of the base, passes through the pressing part of the balancing pressure plate and the shim block in sequence, and is then threadedly connected to the threaded hole of the base.

[0009] Another aspect of this application provides a constant-height tooth dry cutting cutter disc, which is manufactured by positioning and clamping the cutter disc wire cutting tooling described in any one of the above claims; the constant-height tooth dry cutting cutter disc has a plurality of cutter groove groups evenly arrayed along the circumference, each cutter groove group includes at least two oblique slot holes, the at least two oblique slot holes are distributed in multiple radii along the radial direction of the constant-height tooth dry cutting cutter disc, and are arranged in an angularly staggered manner along the circumferential direction of the constant-height tooth dry cutting cutter disc.

[0010] Optionally, at least two of the inclined slot holes include a first inclined slot hole and a second inclined slot hole; along the circumference of the equal-height tooth dry cutting disc, the included angle between the same contour edges of the two first inclined slot holes corresponding to the positions in two adjacent slot groups is α, and the included angle between the same contour edges of the two second inclined slot holes corresponding to the positions in two adjacent slot groups is also α, and the value of α ranges from 25° to 26°.

[0011] Optionally, at least two of the inclined slots include a first inclined slot and a second inclined slot; along the circumference of the equal-height toothed dry cutting disc, in two adjacent slot groups, the included angle between one side profile edge of the first inclined slot of one slot group and the adjacent profile edge of the adjacent second inclined slot of the other slot group is b, and the value of b ranges from 12° to 13°.

[0012] Optionally, at least two of the inclined slots include a first inclined slot and a second inclined slot; among the multiple first inclined slots and multiple second inclined slots included in the multiple blade slot groups, each first inclined slot has at least one second inclined slot that is arranged at a 90° angle to the first inclined slot along the circumference of the equal-height tooth dry cutting blade disc; the distance between the front inclined edge of the second inclined slot and the inner radial edge of the corresponding first inclined slot is c, and the value of c ranges from 62mm to 64mm.

[0013] Optionally, at least two of the inclined slots include a first inclined slot and a second inclined slot; among the multiple first inclined slots and multiple second inclined slots included in the multiple blade slot groups, each first inclined slot has at least one second inclined slot that is arranged at a 90° angle to the first inclined slot along the circumference of the equal-height tooth dry cutting blade disc; the distance between the inner radial side of the second inclined slot and the corresponding front inclined side of the first inclined slot is d, and the value of d ranges from 58mm to 60mm.

[0014] By employing the above technical solution, this application has at least the following beneficial effects: This application provides a wire EDM fixture and a high-profile toothed dry cutting fixture. A base ensures stable installation with the wire EDM machine. A retaining ring, which can be machined by the electrode wire, is fixedly mounted on the upper surface of the base. Its inner wall abuts against the outer wall of the small end of the blank in the high-profile toothed dry cutting fixture. This provides precise radial positioning for the weaker small end of the blank, and because the retaining ring can be machined by the electrode wire, it does not obstruct the machining requirements where the cutting groove extends towards the small end of the blank and its projection exceeds the radial range of the small end. Furthermore, a balancing pressure plate, at least partially covering the side of the blank away from the base, further enhances the fit between the blank and the balancing pressure plate. The upper surface of the large end fits against the base to press and fix the blank firmly, ensuring that there is no unsupported part when the electrode wire contacts the blank of the equal-height dry cutting head. This effectively prevents the electrode wire from radially displacing due to cutting force at the small end of the blank. At the same time, it balances the force on the large end of the blank to reduce local stress concentration, thereby suppressing the vibration and shaking of the electrode wire during the machining of the blank by the equal-height dry cutting head. This reduces warping and twisting deformation caused by alternating cutting forces, ensures the accuracy of the machining trajectory, significantly improves the dimensional and positional accuracy of the tool groove of the blank of the equal-height dry cutting head, reduces the difficulty of subsequent tooth finishing, reduces the risk of scrapping the blank of the equal-height dry cutting head, and helps to improve production efficiency and control machining costs. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of a wire EDM tooling according to an optional embodiment of this application; Figure 2 This is a schematic diagram of the structure of an equal-height tooth dry cutting disc according to an optional embodiment of this application.

[0016] The reference numerals in the attached figures are as follows: 1. Base; 2. Retaining ring; 3. Flat plate; 31. Pressing part; 32. Support part; 4. Elevating block; 5. Bolt; 6. Knife groove assembly; 61. First oblique groove hole; 62. Second oblique groove hole. Detailed Implementation

[0017] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0018] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0019] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0020] The preferred embodiments of this application are described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for illustration and explanation only and are not intended to limit this application.

[0021] See Figure 1As shown, one aspect of this application provides a wire EDM fixture for positioning and clamping a rough blank of a high-tooth dry cutting dicing ...

[0022] The wire EDM fixture provided in the embodiments of this application achieves stable installation with the wire EDM machine by setting a base 1; at the same time, by setting a retaining ring 2 that can be machined by the electrode wire, the retaining ring 2 is fixedly set on the upper surface of the base 1, and its inner wall fits against the outer wall of the small end of the rough blank of the equal-height tooth dry cutting blade, which not only provides precise radial positioning for the weak small end of the rough blank, but also, because the retaining ring 2 can be machined by the electrode wire, it will not hinder the processing requirements of the blade groove extending towards the small end of the rough blank and the projection exceeding the radial range of the small end; in addition, with the function of the flattening pressure plate 3, at least part of the flattening pressure plate 3 covers the side of the rough blank of the equal-height tooth dry cutting blade away from the base 1, and is in contact with the large end of the rough blank. The upper surface fits against the base 1 to press and fix the blank firmly, so that there is no unsupported part when the electrode wire contacts the blank of the equal-height dry cutting disc. This effectively avoids radial displacement of the electrode wire at the small end of the blank due to cutting force, while balancing the force on the large end of the blank to reduce local stress concentration. This suppresses vibration and shaking of the electrode wire during the blank machining process of the equal-height dry cutting disc, reduces warping and twisting deformation caused by alternating cutting forces, ensures the accuracy of the machining trajectory, significantly improves the dimensional and positional accuracy of the tool groove of the blank of the equal-height dry cutting disc, reduces the difficulty of subsequent tooth finishing, reduces the scrap risk of the blank of the equal-height dry cutting disc, and helps to improve production efficiency and control processing costs.

[0023] Among them, the equal-height tooth dry cutting disc blank refers to the blank of the equal-height tooth dry cutting disc without cutting grooves, and its overall structure is thick at one end and thin at the other end.

[0024] Specifically, the equal-height tooth dry cutting disc blank has a large end with a larger radial dimension and a small end with a smaller radial dimension. The large end, as the core area for subsequent processing, needs to have several cutting grooves opened in the circumferential direction. Each cutting groove extends along the axial direction of the equal-height tooth dry cutting disc blank, that is, from the large end to the small end. The projection of the cutting groove on the end face of the small end at least partially exceeds the radial range of the small end.

[0025] Among them, the base 1 of the cutter head wire EDM fixture is the core basic support of the entire fixture. It is directly installed on the wire EDM machine and is used to support other components of the cutter head wire EDM fixture and the rough blank of the equal-height tooth dry cutting cutter head. Through a stable connection with the wire EDM machine, it provides a stable benchmark for the accurate positioning and reliable clamping of the rough blank of the equal-height tooth dry cutting cutter head, and avoids the impact on accuracy due to the loosening of the foundation during the processing.

[0026] Specifically, wire EDM machines can be slow wire EDM equipment, etc.

[0027] The upper surface of the base 1 is provided with a retaining ring 2 with a circular structure. The inner diameter of the retaining ring 2 is adapted to the outer diameter of the small end of the rough blank of the equal-height tooth dry cutting disc, so that its inner wall can be tightly fitted and abutted against the outer wall of the small end of the rough blank of the equal-height tooth dry cutting disc, thereby effectively restricting the radial displacement of the rough blank of the equal-height tooth dry cutting disc in the horizontal direction and realizing the precise radial positioning of the rough blank of the equal-height tooth dry cutting disc.

[0028] Specifically, when using wire EDM to machine the groove of the blank of the equal-height tooth dry cutting tool disc, the retaining ring 2 can be directly cut by the electrode wire. Even if the groove extends along the axial direction of the blank of the equal-height tooth dry cutting tool disc towards the small end and the projection exceeds the radial range of the small end, it will not obstruct the machining path of the electrode wire. At the same time, the retaining ring 2 can provide effective support for the electrode wire extending to the small end area, ensuring that the electrode wire has no suspended and unloaded parts, and avoiding the impact of the groove machining accuracy on the electrode wire due to the shaking of the electrode wire during machining.

[0029] Among them, the balancing pressure plate 3 is placed on the side of the rough blank of the equal-height tooth dry cutting disc away from the base 1. Its lower surface is in close contact with the upper surface of the large end of the rough blank. By providing a balanced axial clamping force, it ensures that the upper reference surface and the lower reference surface of the large end of the rough blank of the equal-height tooth dry cutting disc always remain parallel and horizontal, providing stable reference surface accuracy for the tool groove machining.

[0030] Specifically, in practical applications, the wire EDM fixture uses a base 1 directly mounted on the wire EDM machine as a stable foundation. A circular retaining ring 2, whose inner diameter matches the outer diameter of the small end of the rough blank of the equal-height toothed dry cutting dicing head, achieves precise radial positioning of the rough blank. This retaining ring 2 can be directly cut by the electrode wire, without obstructing the machining path where the cutting groove extends towards the small end of the rough blank and its projection exceeds the radial range of the small end. It also supports the electrode wire, preventing it from swaying. Simultaneously, a balancing pressure plate 3, covering the side of the rough blank away from the base 1, fits tightly against the upper surface of the large end of the rough blank. By applying a balanced axial clamping force, the rough blank is fixed to the base 1, ensuring that the upper and lower reference planes of the large end of the rough blank are parallel and horizontal. This reduces stress concentration and vibration deformation, ultimately achieving high-precision wire EDM machining of the cutting groove, reducing the difficulty of subsequent finishing and the risk of rough blank scrap, improving production efficiency, and controlling costs.

[0031] In some possible implementations disclosed in this application, see [link to relevant documentation]. Figure 1 As shown, the outer diameter of retaining ring 2 is equal to the outer diameter of the large end of the blank of the equal-height dry cutting disc.

[0032] In this embodiment, by setting the outer diameter of the retaining ring 2 to be equal to the outer diameter of the large end of the blank of the equal-height tooth dry cutting dicing disc, on the one hand, the overall structure of the wire EDM fixture can be made more compact and regular, and the large end of the blank of the equal-height tooth dry cutting dicing disc and the retaining ring 2 can be aligned radially, further enhancing the consistency of the radial positioning reference and avoiding positioning reference offset or visual misjudgment during clamping due to the difference in their outer diameters, thus improving the convenience and accuracy of clamping operations; on the other hand, this size matching allows the electrode wire to cut grooves that extend beyond the radial range of the small end of the blank of the equal-height tooth dry cutting dicing disc, ensuring that the cutting... The cutting path extends more regularly in the area of ​​retaining ring 2, reducing the extra wobbling that may occur due to the mismatch between the outer diameter of retaining ring 2 and the outer diameter of the large end of the roughing blank of the equal-height dry cutting head. This further ensures the accuracy of the machining trajectory of the cutting groove. At the same time, in conjunction with the supporting effect of retaining ring 2 and the clamping effect of the balancing pressure plate 3, it more effectively suppresses the vibration deformation and stress concentration of the roughing blank of the equal-height dry cutting head, helping to improve the dimensional and positional accuracy of the cutting groove. This further reduces the difficulty of subsequent finishing and the risk of scrapping the roughing blank of the equal-height dry cutting head, providing stronger support for improving production efficiency and controlling processing costs.

[0033] In some possible implementations disclosed in this application, see [link to relevant documentation]. Figure 1 As shown, the wire cutting fixture also includes a shim block 4, which is fixedly disposed between the balancing pressure plate 3 and the base 1 and located on the outer periphery of the retaining ring 2. The inner side wall of the shim block 4 abuts against the outer side wall of the retaining ring 2 to radially limit the retaining ring 2. At the same time, the shim block 4 is used to support the balancing pressure plate 3.

[0034] In this embodiment, by setting a shim 4 between the balancing pressure plate 3 and the base 1, on the outer periphery of the retaining ring 2, and ensuring that the inner wall of the shim 4 abuts against the outer wall of the retaining ring 2, the retaining ring 2 can be reliably radially limited, preventing radial displacement of the retaining ring 2 due to the cutting force or vibration of the electrode wire during processing. This further enhances the precise radial positioning effect of the retaining ring 2 on the small end of the rough blank of the equal-height dry cutting disc, ensuring the stability of the positioning reference. On the other hand, the shim 4 can provide stable support for the balancing pressure plate 3, making the force on the balancing pressure plate 3 more balanced, effectively preventing deformation of the balancing pressure plate 3 due to its own span or clamping force, and ensuring its continuous operation. The equal-height tooth dry cutting head provides uniform axial clamping force to the large end of the roughing blank, maintaining the parallel and horizontal state of the upper and lower reference surfaces of the large end of the roughing blank and reducing local stress concentration. At the same time, the setting of the shim block 4 can also optimize the overall force structure of the tooling, further suppressing the vibration and shaking of the roughing blank and the wire cutting tooling of the equal-height tooth dry cutting head during the processing. Combined with the support of the electrode wire by the retaining ring 2, it can more comprehensively ensure the accuracy of the tool groove processing trajectory, help improve the dimensional accuracy and positional accuracy of the tool groove, further reduce the difficulty of subsequent finishing and the risk of scrapping the equal-height tooth dry cutting head roughing blank, and provide a more reliable guarantee for improving production efficiency and controlling processing costs.

[0035] In some specific examples, the shim block 4 is a continuous ring structure, which can form a uniform radial limit for the retaining ring 2 in the entire circumference, while providing continuous ring support for the balancing pressure plate 3, ensuring support stability and force balance. In other specific examples, the shim block 4 is a split block structure evenly distributed in the circumference, such as a fan-shaped block or a rectangular block. It abuts against the outer wall of the retaining ring 2 through multiple sets of evenly arranged block units, which can not only achieve reliable radial limit for the retaining ring 2, but also meet the balanced support requirements of the balancing pressure plate 3. Moreover, the split structure is easier to process, install and maintain, and adapts to the usage requirements under different working conditions.

[0036] Specifically, in this embodiment, the raised block 4 is a continuous ring structure.

[0037] In some possible implementations disclosed in this application, see [link to relevant documentation]. Figure 1 As shown, the balancing pressure plate 3 includes a pressing part 31 and a supporting part 32; the pressing part 31 is used to abut against the upper surface of the large end of the rough blank of the equal-height tooth dry cutting disc; the supporting part 32 is connected to the pressing part 31, and the end of the supporting part 32 away from the pressing part 31 is in contact with the upper surface of the shim block 4 so as to support the balancing pressure plate 3 through the shim block 4.

[0038] In some specific examples, the clamping part 31 and the supporting part 32 are integrally formed; in other specific examples, the clamping part 31 and the supporting part 32 are separate parts, connected by bolts 5, welding, or other methods. In this embodiment, the clamping part 31 and the supporting part 32 are separate parts, connected by bolts 5, welding, or other methods.

[0039] The clamping part 31 is annular, and its inner diameter is slightly smaller than the outer diameter of the large end of the rough blank of the equal-height tooth dry cutting disc. The outer diameter is connected to the support part 32 and is used to cover the outer peripheral area of ​​the large end of the rough blank of the equal-height tooth dry cutting disc.

[0040] Among them, the support part 32 is a ring-shaped frame structure that extends downward from the outer periphery of the pressing part 31. The end away from the pressing part 31 is a flat surface that fits against the upper surface of the shim block 4 to ensure stable support and avoid force displacement.

[0041] In some possible implementations disclosed in this application, see [link to relevant documentation]. Figure 1 As shown, a threaded hole is provided on the base 1 at the position corresponding to the shim block 4, and a bolt 5 is adapted to be connected in the threaded hole; the bolt 5 is arranged in a direction perpendicular to the upper surface of the base 1, and passes through the pressing part 31 of the flat pressure plate 3 and the shim block 4 in sequence before being threadedly connected to the threaded hole of the base 1.

[0042] In this embodiment, the locking force generated by tightening the bolt 5 can press the pressing part 31 of the balancing pressure plate 3 tightly against the upper surface of the large end of the rough blank of the equal height tooth dry cutting disc, and at the same time realize the detachable fixed connection between the balancing pressure plate 3, the shim block 4 and the base 1.

[0043] Further, see Figure 2 As shown, another aspect of the embodiments of this application provides a constant-height tooth dry cutting cutter head, which is manufactured by positioning and clamping the cutter head wire cutting tooling according to any one of the above-mentioned methods; the constant-height tooth dry cutting cutter head has a plurality of cutter groove groups 6 evenly arrayed along the circumference, each cutter groove group 6 including at least two oblique slot holes, the at least two oblique slot holes are distributed in multiple radii along the radial direction of the constant-height tooth dry cutting cutter head, and are arranged in an angularly staggered manner along the circumferential direction of the constant-height tooth dry cutting cutter head, that is, the distance of at least two oblique slot holes from the center of the constant-height tooth dry cutting cutter head is different, and the orientation of at least two oblique slot holes on the circumference of the constant-height tooth dry cutting cutter head is different.

[0044] Here, by employing the aforementioned high-precision wire EDM fixture for positioning and clamping, the equal-height tooth dry cutting head is machined. Firstly, the fixture provides precise radial positioning, balanced axial clamping, and stable support for the roughing stock, ensuring the dimensional and positional accuracy of the slot group 6 and laying the foundation for the head's performance. Simultaneously, the multiple slot groups 6 evenly arrayed circumferentially on the head, each containing at least two oblique slots distributed radially with multiple radii and staggered angularly along the circumferential direction, expand the head's cutting coverage, adapting to cutting requirements at different radial positions. This also avoids interference between adjacent oblique slots during cutting, balances the force distribution along the head's circumference, reduces local stress concentration, and, combined with the oblique slot structure, improves chip removal smoothness during cutting, effectively reducing cutting resistance and vibration. This significantly improves the cutting efficiency, machining stability, and service life of the equal-height tooth dry cutting head. Furthermore, because the fixture reduces the difficulty of roughing stock machining and the risk of scrap, the overall machining cost of the head is also reasonably controlled.

[0045] It should be noted that, based on the precise positioning and stable clamping effect of the aforementioned wire EDM tooling, and the scientific layout design of the slot group 6, this equal-height tooth dry cutting tool head can achieve ultra-high machining accuracy. Specifically, the slot indexing accuracy reaches 2”, ensuring that the circumferentially evenly distributed slot group 6 has minimal positional deviation in the circumferential direction; the slot size tolerance is controlled within the range of 0 to 0.005 mm, ensuring the consistency of the dimensions of each oblique slot hole; the mounting base surface and end runout are less than 0.005 mm, and the parallelism is less than 0.005 mm, providing a foundation for the precise assembly of the equal-height tooth dry cutting tool head with the equipment and the stability of the cutting process; the perpendicularity of the two sides of the tool bar mounting is small. With an accuracy of 0.005mm, the cutting angle is ensured to be precise after the cutter bar is installed; and the error of all measurement points is controlled within 3.5um, achieving high-precision control in all dimensions. These precision indicators not only allow the equal-height tooth dry cutting head to maintain extremely high cutting consistency during the cutting process, effectively reducing dimensional deviations and surface roughness of the machined workpiece and significantly improving workpiece machining quality, but also reduce assembly errors during cutter bar installation, avoiding problems such as uneven cutting stress and accelerated tool wear caused by insufficient precision. This further extends the service life of the equal-height tooth dry cutting head and cutter bar, helping to improve the overall production line's processing efficiency and product qualification rate.

[0046] In the above embodiments, see Figure 2 As shown, at least two oblique slots include a first oblique slot 61 and a second oblique slot 62; along the circumference of the equal-height toothed dry cutting disc, the included angle between the same contour edges of the two first oblique slots 61 corresponding to the positions in two adjacent cutting slot groups 6 is α, and the included angle between the same contour edges of the two second oblique slots 62 corresponding to the positions in two adjacent cutting slot groups 6 is also α, and the value of α ranges from 25° to 26°.

[0047] Wherein, 'a' is preferably 25.714°. By limiting the circumferential direction of the equal-height tooth dry cutting tool disc, the included angle of the same contour edge of the first oblique slot hole 61 and the second oblique slot hole 62 in adjacent slot groups 6 is 25.714°. On the one hand, this ensures that all oblique slot holes form a regular and balanced distribution pattern in the circumferential direction, further enhancing the uniformity of force in the circumferential direction of the equal-height tooth dry cutting tool disc, avoiding local cutting force concentration caused by inconsistent included angles. Combined with the multi-radius and angle misalignment design of the oblique slot holes, it more effectively reduces cutting resistance and vibration, and improves the stability of the cutting process of the equal-height tooth dry cutting tool disc. On the other hand, 25° The 0.714° included angle value has been precisely optimized to ensure sufficient chip removal space between adjacent inclined slots, avoiding chip accumulation and interference with cutting. It also maximizes the use of the circumferential space of the equal-height dry cutting head to achieve a reasonable cutting coverage density, balancing cutting efficiency and machining quality. At the same time, combined with the ultra-high machining accuracy brought by the wire EDM tooling, the positional consistency of each inclined slot is further improved, ensuring the uniformity of the cutting angle after the tool bar is installed. This extends the service life of the equal-height dry cutting head and tool bar, helping to improve the consistency and pass rate of workpiece machining.

[0048] In the above embodiments, see Figure 2 As shown, at least two oblique slots include a first oblique slot 61 and a second oblique slot 62; along the circumference of the equal-height toothed dry cutting disc, in two adjacent slot groups 6, the included angle between one side profile edge of the first oblique slot 61 of one slot group 6 and the adjacent profile edge of the adjacent second oblique slot 62 of the other slot group 6 is b, and the value of b ranges from 12° to 13°.

[0049] Wherein, b is preferably 12.86°. By limiting the circumferential direction of the equal-height tooth dry cutting tool disc, the angle between the contour edge of the first oblique slot hole 61 of one tool disc group 6 and the adjacent contour edge of the adjacent second oblique slot hole 62 of the other tool disc group 6 is 12.86°. On the one hand, this forms a suitable gap size between different types of oblique slot holes in adjacent tool disc groups 6, which not only fills the circumferential distribution gap and improves the overall cutting coverage density of the equal-height tooth dry cutting tool disc, but also avoids cutting interference or chip accumulation between oblique slot holes of different radii and misaligned arrangement due to excessively narrow spacing, thus ensuring smooth chip removal; on the other hand... The 12.86° included angle value, in conjunction with the previously unified included angle α, ensures that all the slanted slot holes present a regular, orderly, and balanced distribution pattern around the circumference of the equal-height dry cutting tool disc. This further optimizes the force transmission path in the circumferential direction, reduces stress abrupt changes and vibrations caused by uneven local clearances during cutting, and, combined with the ultra-high machining accuracy brought by the tooling, ensures the consistency of the position of each slanted slot hole and the uniformity of the tool bar installation angle. This not only improves cutting efficiency and workpiece machining consistency but also reduces the local wear rate of the tool bar, extending the service life of the equal-height dry cutting tool disc and the tool bar.

[0050] In the above embodiments, see Figure 2As shown, at least two oblique slots include a first oblique slot 61 and a second oblique slot 62; among the multiple first oblique slots 61 and multiple second oblique slots 62 included in the multiple blade slot groups 6, each first oblique slot 61 has at least one second oblique slot 62 arranged at a 90° angle to the first oblique slot 61 along the circumference of the equal-height dry cutting blade disc; the distance between the front oblique edge of the second oblique slot 62 and the inner radial edge of the corresponding first oblique slot 61 is c, and the value of c ranges from 62mm to 64mm.

[0051] Wherein, c is preferably 63mm. By limiting each first oblique slot hole 61 to have at least one second oblique slot hole 62 set at a 90° angle along the circumference of the equal-height tooth dry cutting disc, and the interval between the two is 63mm, on the one hand, the two oblique slot holes with different radii form a circumferentially vertically distributed complementary force pattern, effectively dispersing the radial and circumferential loads during the cutting process, avoiding stress concentration in one direction, and significantly improving the structural stability and deformation resistance of the equal-height tooth dry cutting disc; on the other hand, the 63mm interval distance is precisely optimized, which not only provides sufficient flow channels for chips, ensuring smooth chip removal during deep cutting, but also avoids the waste of the effective cutting area of ​​the equal-height tooth dry cutting disc due to excessively wide intervals, or chip blockage and cutting interference caused by excessively narrow intervals. At the same time, with the ultra-high machining accuracy brought by the tooling, the precise realization of this interval size and the 90° angle is ensured, so that the tool bar can form a synergistic cutting effect after installation, further improving cutting efficiency, workpiece surface quality and the service life of the equal-height tooth dry cutting disc.

[0052] In the above embodiments, see Figure 2 As shown, at least two oblique slots include a first oblique slot 61 and a second oblique slot 62; among the multiple first oblique slots 61 and multiple second oblique slots 62 included in the multiple blade slot groups 6, each first oblique slot 61 has at least one second oblique slot 62 arranged at a 90° angle to the first oblique slot 61 along the circumference of the equal-height tooth dry cutting blade disc; the distance between the inner radial side of the second oblique slot 62 and the oblique side of the front end of the corresponding first oblique slot 61 is d, and the value of d ranges from 58mm to 60mm.

[0053] Wherein, d is preferably 59mm. By limiting each first oblique slot hole 61 to have at least one second oblique slot hole 62 set at a 90° angle along the circumference of the equal-height tooth dry cutting tool disc, and the interval between the two is 59mm, on the one hand, it forms a synergistic complement with the interval distance c mentioned above, standardizing the spatial gap of the two vertically distributed oblique slot holes from two key directions, constructing an all-round chip removal channel without dead angles, ensuring that chips can be quickly discharged from different directions during the cutting process, and completely avoiding accumulation and blockage; on the other hand, the precise value of 59mm not only ensures that the structural wall thickness of the equal-height tooth dry cutting tool disc in the intersection area of ​​the two oblique slot holes is sufficient, strengthening the deformation resistance and structural stability, but also allows the vertically distributed blades to form a three-dimensional synergistic cutting effect, effectively dispersing the cutting load in different directions. Combined with the ultra-high machining accuracy brought by the tooling, it further improves the cutting efficiency, the surface finish of the workpiece, and the service life of the equal-height tooth dry cutting tool disc, while avoiding cutting interference or waste of effective cutting area due to improper gaps.

[0054] It will be readily understood by those skilled in the art that the aforementioned advantageous methods can be freely combined and superimposed without conflict.

[0055] The above are merely preferred embodiments of this application and are not intended to limit this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application. The above are merely preferred embodiments of this application. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of this application, and these improvements and modifications should also be considered within the protection scope of this application.

Claims

1. A wire EDM fixture with a cutter head, characterized in that, The wire EDM fixture for positioning and clamping the rough blank of the equal-height toothed dry cutting head includes: A base for mounting on a wire cutting machine; A retaining ring is fixedly disposed on the upper surface of the base, and the inner wall of the retaining ring is in close contact with the outer wall of the small end of the blank of the equal-height tooth dry cutting disc to achieve radial positioning of the blank of the equal-height tooth dry cutting disc. A leveling plate, at least a portion of which covers the side of the equal-height tooth dry cutting disc blank away from the base, is used to fit and abut against the upper surface of the large end of the equal-height tooth dry cutting disc blank to press and fix the equal-height tooth dry cutting disc blank onto the base.

2. The wire EDM fixture according to claim 1, characterized in that, The outer diameter of the retaining ring is equal to the outer diameter of the large end of the blank of the equal-height tooth dry cutting disc.

3. The wire EDM fixture according to claim 1, characterized in that, Also includes: A shim block is fixedly disposed between the balancing pressure plate and the base, and located on the outer periphery of the retaining ring. The inner sidewall of the shim block abuts against the outer sidewall of the retaining ring to radially limit the retaining ring. At the same time, the shim block is used to support the balancing pressure plate.

4. The wire EDM fixture according to claim 3, characterized in that, The balancing pressure plate includes: A clamping part is used to abut against the upper surface of the large end of the blank of the equal-height tooth dry cutting disc; A support portion is connected to the pressing portion, and one end of the support portion away from the pressing portion is in contact with the upper surface of the shim block to support the balancing pressure plate through the shim block.

5. The wire EDM fixture according to claim 4, characterized in that, The base has a threaded hole corresponding to the position of the shim block, and a bolt is adapted to be connected in the threaded hole; the bolt is arranged in a direction perpendicular to the upper surface of the base, passes through the pressing part of the balancing pressure plate and the shim block in sequence, and is then threadedly connected to the threaded hole of the base.

6. A type of equal-height toothed dry cutting disc, characterized in that, It is manufactured by positioning and clamping the cutter head wire cutting tooling as described in any one of claims 1-5; the equal-height tooth dry cutting cutter head has a plurality of cutter groove groups evenly arrayed along the circumference, each cutter groove group includes at least two oblique slot holes, the at least two oblique slot holes are distributed in multiple radii along the radial direction of the equal-height tooth dry cutting cutter head, and are arranged in an angularly staggered manner along the circumferential direction of the equal-height tooth dry cutting cutter head.

7. The equal-height toothed dry cutting disc according to claim 6, characterized in that, At least two of the inclined slot holes include a first inclined slot hole and a second inclined slot hole; along the circumference of the equal-height tooth dry cutting disc, the included angle between the same contour edges of the two first inclined slot holes corresponding to the positions in two adjacent slot groups is α, and the included angle between the same contour edges of the two second inclined slot holes corresponding to the positions in two adjacent slot groups is also α, and the value of α ranges from 25° to 26°.

8. The equal-height toothed dry cutting disc according to claim 6, characterized in that, At least two of the inclined slots include a first inclined slot and a second inclined slot; along the circumference of the equal-height tooth dry cutting disc, in two adjacent slot groups, the included angle between one side profile edge of the first inclined slot of one slot group and the adjacent profile edge of the adjacent second inclined slot of the other slot group is b, and the value of b ranges from 12° to 13°.

9. The equal-height toothed dry cutting disc according to claim 6, characterized in that, At least two of the aforementioned oblique slots include a first oblique slot and a second oblique slot; among the multiple first oblique slots and multiple second oblique slots included in the multiple blade slot groups, each first oblique slot has at least one second oblique slot that is arranged at a 90° angle to the first oblique slot along the circumference of the equal-height tooth dry cutting blade disc; the distance between the front end oblique edge of the second oblique slot and the inner radial edge of the corresponding first oblique slot is c, and the value of c ranges from 62mm to 64mm.

10. The equal-height toothed dry cutting disc according to claim 6, characterized in that, At least two of the aforementioned oblique slots include a first oblique slot and a second oblique slot; among the multiple first oblique slots and multiple second oblique slots included in the multiple blade slot groups, each first oblique slot has at least one second oblique slot that is arranged at a 90° angle to the first oblique slot along the circumference of the equal-height tooth dry cutting blade disc; the distance between the inner radial side of the second oblique slot and the corresponding front oblique side of the first oblique slot is d, and the value of d ranges from 58mm to 60mm.

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