Wear-resistant thread milling cutter with nano coating

Abstract

The utility model discloses an anti-wear thread milling cutter with a nano coating, which comprises a support rod, a butt joint seat, a thread milling rod and a linkage adjusting mechanism, and the butt joint seat is fixed at one end of the support rod. The self-locking device has the advantages that the self-locking function is achieved through a worm gear and worm transmission system, it is ensured that the displacement risk caused by cutting force in the milling process is effectively restrained, the machining stability is improved, meanwhile, worm gear and worm transmission also drives the linkage base to deflect integrally, and the service life of the linkage base is prolonged. The angle of the thread milling rod can be quickly adjusted, the supporting rod is driven to slide in the clamping plate through a gear linkage structure while the linkage seat deflects, angle adjustment and position adjustment are integrated into a single driving unit and can respond synchronously, the problems of efficiency loss and precision errors caused by step-by-step adjustment are solved, and the working efficiency is improved. For special-shaped curved surfaces such as spherical workpieces, the gear linkage system can adjust the contact position of the cutter and the workpieces in real time according to the change of the inclination angle of the milling cutter.

Description

Technical Field

[0001] This utility model relates to a thread milling cutter, specifically a wear-resistant thread milling cutter with a nano-coating, belonging to the field of thread milling cutter technology. Background Technology

[0002] As a precision machining tool, thread milling cutters are mainly used to machine threaded structures on the surface of workpieces. Their applications cover fields such as mechanical manufacturing and aerospace. Compared with traditional tapping processes, thread milling technology has advantages such as low cutting force, high machining efficiency, and wide adaptability, and is especially suitable for machining complex and irregular workpieces.

[0003] However, most existing thread milling cutters have various problems. For example, in the thread milling cutter disclosed in publication number CN210996924U, although the inner end is protected from free rotation by setting a bearing housing, in this technical solution and some current thread milling cutters, when facing complex irregular workpieces, the adjustment mechanism of the current thread milling cutter needs to adjust the tool angle and position step by step. For example, when machining a spherical workpiece, the milling cutter tilt angle needs to be adjusted first to adapt to the curved surface contour, and then the relative position of the tool and the workpiece needs to be adjusted separately. This makes the operation cumbersome and time-consuming. Moreover, the separate design of angle and position adjustment limits the dynamic machining accuracy and is prone to cumulative errors due to multiple adjustments, which affects the forming quality of the threads on the surface of irregular workpieces. Utility Model Content

[0004] This utility model provides a solution that is significantly different from existing technologies, addressing the problem that existing technologies are too simplistic. Specifically, the purpose of this utility model is to solve the aforementioned shortcomings of existing technologies by proposing a wear-resistant thread milling cutter with a nano-coating.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A wear-resistant thread milling cutter with a nano-coating includes a support rod, a mating seat, a thread milling rod, and a linkage adjustment mechanism. The mating seat is fixed to one end of the support rod, the thread milling rod is connected and locked inside the mating seat, and the support rod is connected to the linkage adjustment mechanism.

[0007] The linkage adjustment mechanism includes a support base, a transmission rod, a linkage seat, a clamping plate, a displacement unit, and an angle adjustment unit. The support base is fixed on an external machine tool, the transmission rod is rotatably connected to the support base, the linkage seat is fixed to one end of the transmission rod, the clamping plate is fixed on the linkage seat on the side away from the support base, the support rod is slidably clamped onto the clamping plate, the displacement unit is disposed between the support base and the linkage seat, and the angle adjustment unit is disposed on the support base on the side away from the linkage seat.

[0008] As a further embodiment of this utility model: the displacement unit includes a rack, a driven rod, a driven gear, a driving gear, and an adjusting gear plate. The rack is fixed on a support rod, the driven rod is rotatably connected to a linkage seat, the driven gear is coaxially fixed to one end of the driven rod and meshes with the rack, the adjusting gear plate is fixed on a support seat, and the driving gear is coaxially fixed to the other end of the driven rod and meshes with the adjusting gear plate.

[0009] As a further embodiment of this utility model: the angle adjustment unit includes a worm gear, a servo motor and a worm. The worm gear is coaxially fixed on the transmission rod at the end away from the linkage seat. The servo motor is fixed on the support seat. The worm is coaxially fixed on the output shaft of the servo motor and meshes with the worm gear.

[0010] As a further improvement of this utility model, the adjusting tooth plate has an arc-shaped structure and is available in various models.

[0011] As a further improvement of this utility model: the card plate is provided with a dovetail-shaped groove, and the support rod is provided with a dovetail-shaped protrusion, and the protrusion is slidably fitted in the groove.

[0012] As a further improvement of this utility model: the support rod and the docking seat are detachably connected by a flange and screws, and the thread milling rod has a micro-nano composite coating on its surface.

[0013] The beneficial effects of this utility model are:

[0014] In this invention, a worm gear and worm drive system achieves a self-locking function, effectively suppressing the risk of displacement caused by cutting force during milling and improving machining stability. Simultaneously, the worm gear and worm drive also causes the entire linkage seat to deflect, enabling rapid adjustment of the thread milling rod angle. While the linkage seat deflects, the gear linkage structure drives the support rod to slide within the clamping plate, integrating angle and position adjustment into a single drive unit. This allows for synchronous response, solving the efficiency loss and accuracy error problems caused by step-by-step adjustment. For irregular curved surfaces such as spherical workpieces, the gear linkage system can adjust the contact position between the tool and the workpiece in real time according to the change in the milling cutter's tilt angle, avoiding trajectory deviation caused by step-by-step adjustment, thereby improving thread forming quality. Furthermore, the linkage adjustment mechanism provides a more efficient and reliable solution for machining complex curved surfaces, filling the gap in synchronous adjustment technology for irregular workpieces. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the support rod and its overall connection structure of the present invention;

[0017] Figure 3 This is a schematic diagram of the linkage adjustment mechanism of this utility model;

[0018] Figure 4 This is a schematic diagram of the worm gear and its overall connection structure of the present invention.

[0019] In the diagram: 1. Support rod, 2. Connecting seat, 3. Thread milling rod, 4. Linkage adjustment mechanism, 41. Support seat, 42. Transmission rod, 43. Linkage seat, 44. Clamping plate, 45. Rack, 46. Driven rod, 47. Driven gear, 48. Drive gear, 49. Adjusting gear plate, 410. Worm gear, 411. Servo motor, 412. Worm. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model. Example 1

[0021] like Figures 1 to 4 As shown, a wear-resistant thread milling cutter with a nano-coating includes a support rod 1, a docking seat 2, a thread milling rod 3, and a linkage adjustment mechanism 4. The docking seat 2 is fixed to one end of the support rod 1, the thread milling rod 3 is connected and locked inside the docking seat 2, and the support rod 1 is connected to the linkage adjustment mechanism 4.

[0022] The linkage adjustment mechanism 4 includes a support base 41, a transmission rod 42, a linkage seat 43, a clamping plate 44, a displacement unit, and an angle adjustment unit. The support base 41 is fixed on an external machine tool, the transmission rod 42 is rotatably connected to the support base 41, the linkage seat 43 is fixed to one end of the transmission rod 42, the clamping plate 44 is fixed on the linkage seat 43 on the side away from the support base 41, the support rod 1 is slidably clamped on the clamping plate 44, the displacement unit is set between the support base 41 and the linkage seat 43, and the angle adjustment unit is set on the side of the support base 41 away from the linkage seat 43.

[0023] The displacement unit includes a rack 45, a driven rod 46, a driven gear 47, a driving gear 48, and an adjusting gear plate 49. The rack 45 is fixed on the support rod 1, the driven rod 46 is rotatably connected to the linkage seat 43, the driven gear 47 is coaxially fixed to one end of the driven rod 46 and meshes with the rack 45, the adjusting gear plate 49 is fixed on the support seat 41, and the driving gear 48 is coaxially fixed to the other end of the driven rod 46 and meshes with the adjusting gear plate 49.

[0024] The angle adjustment unit includes a worm gear 410, a servo motor 411, and a worm 412. The worm gear 410 is coaxially fixed on the transmission rod 42 at the end away from the linkage seat 43. The servo motor 411 is fixed on the support seat 41. The worm 412 is coaxially fixed on the output shaft of the servo motor 411 and meshes with the worm gear 410.

[0025] In this invention, a self-locking function is achieved through a worm gear 410 and worm 412 transmission system, ensuring that the risk of displacement caused by cutting force during milling is effectively suppressed, thus improving machining stability. At the same time, the worm gear 410 and worm 412 transmission also drive the linkage seat 43 to deflect as a whole, enabling rapid adjustment of the angle of the thread milling rod 3. While the linkage seat 43 deflects, the gear linkage structure drives the support rod 1 to slide within the clamping plate 44, integrating angle adjustment and position adjustment into a single drive unit, enabling both to respond synchronously. This solves the efficiency loss and accuracy error problems caused by step-by-step adjustment. For irregular curved surfaces such as spherical workpieces, the gear linkage system can adjust the contact position between the tool and the workpiece in real time according to the change of the milling cutter tilt angle, avoiding trajectory deviation caused by step-by-step adjustment, thereby improving the thread forming quality. Moreover, the linkage adjustment mechanism provides a more efficient and reliable solution for machining complex curved surfaces, filling the gap in synchronous adjustment technology for irregular workpieces. Example 2

[0026] like Figures 1 to 4 As shown, in addition to all the technical features included in Embodiment 1, this embodiment also includes:

[0027] The adjusting toothed plate 49 has an arc-shaped structure and is available in various models, allowing the thread milling rod 3 to cooperate with the appropriate model of the adjusting toothed plate 49 according to the actual situation, thereby achieving the corresponding motion trajectory and meeting the processing requirements.

[0028] The card plate 44 is provided with a dovetail-shaped groove, and the support rod 1 is provided with a dovetail-shaped protrusion. The protrusion slides in the groove, and the card plate 44 is limited and guided by the groove and the protrusion.

[0029] The support rod 1 and the docking seat 2 are detachably connected by a flange and screws, and the thread milling rod 3 has a micro-nano composite coating on its surface. The detachable connection structure allows the thread milling rod 3 to be quickly assembled and disassembled.

[0030] Working principle: When using this thread milling cutter, first connect and lock the support rod 1 and the docking seat 2. Then, drive the worm gear 412 to rotate through the servo motor 411, which in turn drives the worm wheel 410 to mesh and move together. The worm wheel 410 and the transmission rod 42 drive the linkage seat 43 to deflect as a whole. At this time, the thread milling rod 3 deflects synchronously. At the same time as the deflection, the drive gear 48 meshes on the adjusting gear plate 49, which drives the driven gear 47 to rotate synchronously through the driven rod 46. The driven gear 47 drives the rack 45 to mesh and move together, realizing the synchronous adjustment of angle and position.

[0031] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0032] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A nano-coated anti-wear thread milling cutter comprising a support rod (1), a butt joint seat (2), a thread milling rod (3) and a linkage adjusting mechanism (4), characterized in that, The docking seat (2) is fixed at one end of the supporting rod (1), the threaded milling rod (3) is connected and locked in the docking seat (2), and the supporting rod (1) is connected to the linkage adjusting mechanism (4). The linkage adjusting mechanism (4) comprises a supporting seat (41), a transmission rod (42), a linkage seat (43), a clamping plate (44), a displacement unit and an angle adjusting unit, the supporting seat (41) is fixed on an external machine tool, the transmission rod (42) is rotatably connected to the supporting seat (41), the linkage seat (43) is fixed at one end of the transmission rod (42), the clamping plate (44) is fixed on the side of the linkage seat (43) away from the supporting seat (41), the supporting rod (1) is slidably clamped on the clamping plate (44), the displacement unit is arranged between the supporting seat (41) and the linkage seat (43), and the angle adjusting unit is arranged on the side of the supporting seat (41) away from the linkage seat (43).

2. A thread milling cutter with anti-wear nano-coating according to claim 1, characterized in that: The displacement unit comprises a rack (45), a driven rod (46), a driven gear (47), a driving gear (48) and an adjusting tooth plate (49), the rack (45) is fixed on the supporting rod (1), the driven rod (46) is rotatably connected to the linkage seat (43), the driven gear (47) is coaxially fixed at one end of the driven rod (46) and is in mesh with the rack (45), the adjusting tooth plate (49) is fixed on the supporting seat (41), and the driving gear (48) is coaxially fixed at the other end of the driven rod (46) and is in mesh with the adjusting tooth plate (49).

3. The anti-wear threaded milling cutter with nano-coating according to claim 1, characterized in that: The angle adjusting unit comprises a worm wheel (410), a servo motor (411) and a worm (412), the worm wheel (410) is coaxially fixed at one end of the transmission rod (42) away from the linkage seat (43), the servo motor (411) is fixed on the supporting seat (41), and the worm (412) is coaxially fixed on the output shaft of the servo motor (411) and is in mesh with the worm wheel (410).

4. The anti-wear threaded milling cutter with nano-coating according to claim 2, characterized in that: The adjusting tooth plate (49) is in an arc structure and is provided with multiple models.

5. The anti-wear threaded cutter with nano-coating according to claim 1, characterized in that: The clamping plate (44) is provided with a dovetail-shaped notch, the supporting rod (1) is provided with a dovetail-shaped protrusion, and the protrusion is slidably fitted in the notch.

6. The anti-wear threaded milling cutter with nano-coating according to claim 1, characterized in that: The supporting rod (1) and the docking seat (2) are detachably connected through a flange and screws, and the threaded milling rod (3) is provided with a micro-nano composite coating on the surface.

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