A milling cutter head with a convenient adjustment of the position of the cutting blades

Abstract

The application discloses a milling cutter disc convenient for adjusting the installation positions of blades, relates to the technical field of milling cutters, and comprises an end cover on the cutter disc, a main shaft hole reserved for penetrating and inserting a main shaft of an external milling machine, and a bolt connection of the cutter disc and the main shaft of the external milling machine through an ear seat; a transmission assembly is arranged in the cutter disc, the transmission assembly takes a servo motor embedded in the cutter disc as a driving source; a cutter adjusting assembly is arranged in a cover shell, the cutter adjusting assembly comprises metal blades arranged on the outer side of the cover shell; a cutter feeding assembly is arranged on the transmission assembly, the cutter feeding assembly comprises a displacement sensor fixed on the outer side of the cover shell and is used for monitoring the cutter feeding stroke of the metal blades in real time. According to actual operation requirements, the metal blades on the cutter disc are switched in an overall, partial or independent position switching mode, the self-adaptive displacement switching effect is realized, the cutter feeding requirements of the metal blades in different positions are met, and the traditional tool dismounting and replacing mode is replaced.

Description

Technical Field

[0001] This invention relates to the field of milling cutter technology, and in particular to a milling cutter disc that facilitates adjustment of the insert mounting position. Background Technology

[0002] A milling cutter disc, also known as a face milling cutter disc, is a disc-shaped cutting tool used on CNC milling machines / machining centers for milling planes, steps, grooves, etc. It uses carbide inserts as its core and is a high-efficiency tool in modern metal processing. It is also an essential machining tool on milling machines. A milling cutter disc is composed of several metal milling cutter inserts.

[0003] Ordinary end mill inserts are usually fixed with screws using wedges. In actual operation, when it is necessary to change the position of the end mill insert, tools are often used to remove and install the screws and change the position of the wedges to complete the displacement and switching of the end mill insert installation position. This is not only troublesome, but also prone to misoperation, omissions, and loosening or even falling off due to improper installation. Summary of the Invention

[0004] The purpose of this section is to outline some aspects of embodiments of the present invention and to briefly describe some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be construed as limiting the scope of the invention.

[0005] In view of the problems existing in the above and / or existing milling cutter heads that facilitate the adjustment of the insert mounting position, the present invention is proposed.

[0006] Therefore, the problem to be solved by this invention is how to solve the problem of switching and adjusting the overall and independent positions of several sets of milling cutter inserts.

[0007] To solve the above-mentioned technical problems, the present invention provides the following technical solution: a milling cutter disc for easy adjustment of the insert mounting position, including an end cover on the cutter disc and a pre-reserved spindle hole for insertion into an external milling machine spindle, and the cutter disc is bolted to the external milling machine spindle through an ear seat; a transmission assembly is provided inside the cutter disc, the transmission assembly is driven by a servo motor embedded in the cutter disc; a tool adjusting assembly is provided inside the housing, the tool adjusting assembly includes a metal insert disposed on the outside of the housing; a tool feeding assembly is provided on the transmission assembly, the tool feeding assembly includes a displacement sensor fixed on the outside of the housing, and monitors the tool feeding stroke of the metal insert in real time.

[0008] As a preferred embodiment of the milling cutter disc for easy adjustment of the cutting tool installation position as described in this invention, the transmission assembly further includes a circular gear sleeved on the output shaft of the servo motor, and a toothed disc rotates inside the cutter disc, wherein the toothed disc has convex teeth fixed on its circumference to mesh with the circular gear.

[0009] As a preferred embodiment of the milling cutter disc for easy adjustment of the cutting tool installation position as described in this invention, wherein: a lower helical tooth is fixed on the bottom circumference of the tooth disc, and a lower bevel gear is provided on the outer side of the lower helical tooth, and a lower electric push rod is fixed on the outer side of the lower bevel gear.

[0010] As a preferred embodiment of the milling cutter head for easy adjustment of the cutting tool installation position as described in this invention, wherein: the convex tooth is located inside the lower bevel gear, and the lower electric push rod slides through the cutter head, while the outer side of the lower electric push rod rotates with the cover.

[0011] As a preferred embodiment of the milling cutter disc for easy adjustment of the cutting tool installation position according to the present invention, the tool adjustment assembly further includes a worm gear fixed to the outside of the lower electric push rod, and the worm gear rotates with the cover, and a worm wheel meshes on the worm gear.

[0012] As a preferred embodiment of the milling cutter disc for easy adjustment of the blade installation position as described in this invention, wherein: a concentric shaft rotating with the cover is sleeved inside the worm gear, and an angle sensor for monitoring the rotation of the metal blade is fixed on the outer side of the concentric shaft.

[0013] As a preferred embodiment of the milling cutter disc for easy adjustment of the blade mounting position according to the present invention, wherein: the inner side of the concentric shaft is fixed with a mounting screw head for fixing the metal blade, and the outer side of the mounting screw head is threaded with an anti-loosening nut, and the cutting edge angle of the metal blade increases sequentially in a clockwise direction.

[0014] As a preferred embodiment of the milling cutter disc for easy adjustment of the cutting tool installation position as described in this invention, a ratchet is sleeved on the outer side of the concentric shaft, and a pawl that rotates with the cover is engaged on the ratchet. A compression spring that is fixed to the cover is fixed on the outer side of the pawl.

[0015] As a preferred embodiment of the milling cutter head for easy adjustment of the cutting tool installation position according to the present invention, the tool feeding assembly further includes an upper helical tooth fixed circumferentially to the top of the toothed disc, and an upper bevel gear is provided on the outer side of the upper helical tooth, and an upper electric push rod that rotates with the cutter head is fixed on the outer side of the upper bevel gear.

[0016] As a preferred embodiment of the milling cutter head for easy adjustment of the cutting tool installation position according to the present invention, wherein: a threaded rod is fixed to the outer side of the upper electric push rod, and a threaded cylinder is threadedly connected to the outer side of the threaded rod, and a guide rail that slides with the cutter head is fixed to the outer side of the threaded cylinder.

[0017] The beneficial effects of this invention are as follows: According to actual operation requirements, several sets of metal blades on the cutter head can be switched in an overall, partial or independent manner to achieve adaptive displacement switching effect, meet the tool feeding needs of several sets of metal blades at different positions, replace the traditional tool disassembly and replacement method, and also achieve the effect of fine adjustment of the angle of several sets of metal blades. By utilizing the different cutting edge angles on them, different degrees of milling operations can be performed on the incoming material, further improving the operational flexibility of the milling cutter head and making it suitable for different material processing scenarios. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the following description of the embodiments will be briefly introduced. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 Main view of the overall structure of the milling cutter head for easy adjustment of the cutting tool mounting position.

[0020] Figure 2 A top view of the overall structure of the milling cutter head to facilitate adjustment of the cutting tool mounting position.

[0021] Figure 3 A partial sectional view of the overall structure of the milling cutter head to facilitate adjustment of the cutting tool mounting position.

[0022] Figure 4 A top view of a portion of the milling cutter head to facilitate adjustment of the insert mounting position.

[0023] Figure 5 A bottom view of the metal insert of the milling cutter head in a fine-tuning state to facilitate adjustment of the insert mounting position.

[0024] Figure 6 A top view of the metal insert feed position of the milling cutter head for easy adjustment of the insert mounting position.

[0025] Figure 7 An exploded view of the partial structure of the milling cutter head to facilitate adjustment of the insert mounting position.

[0026] In the diagram: 1. Cutter head; 2. End cap; 3. Ear seat; 4. Cover; 51. Servo motor; 52. Circular gear; 53. Gear disc; 54. Convex tooth; 55. Lower helical tooth; 56. Lower bevel gear; 57. Lower electric actuator; 61. Worm gear; 62. Worm wheel; 63. Concentric shaft; 64. Angle sensor; 65. Mounting screw; 66. Metal blade; 67. Anti-loosening nut; 71. Upper helical tooth; 72. Upper bevel gear; 73. Upper electric actuator; 74. Threaded rod; 75. Threaded cylinder; 76. Guide rail; 77. Displacement sensor; 8. Ratchet; 9. Pad; 10. Compression spring. Detailed Implementation

[0027] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0028] Many specific details are set forth in the following description in order to provide a full understanding of the invention. However, the invention may also be practiced in other ways different from those described herein, and those skilled in the art can make similar extensions without departing from the spirit of the invention. Therefore, the invention is not limited to the specific embodiments disclosed below.

[0029] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that is mutually exclusive with other embodiments.

[0030] Example 1, referring to Figures 1 to 7 This is the first embodiment of the present invention. This embodiment provides a milling cutter head that facilitates the adjustment of the cutting tool installation position. It includes an end cover 2 on the cutter head 1 and a spindle hole that is reserved for insertion into an external milling machine spindle. The cutter head 1 is bolted to the external milling machine spindle through an ear seat 3. The spindle hole reserved on the cutter head 1 and the end cover 2 is inserted into the mounting part of the milling machine spindle, and then the milling machine spindle, the end cover 2 and the cutter head 1 are bolted together and fixed by bolts.

[0031] Specifically, the cutter head 1 is equipped with a transmission component, which is driven by a servo motor 51 embedded in the cutter head 1. This reduces the use of drive components, saving drive power costs, reducing wiring difficulties, and lowering the failure rate of drive components.

[0032] Furthermore, the servo motor 51 is equipped with a shock-absorbing pad that is fixed to the cutter head 1 to prevent vibrations generated during the operation of the servo motor 51 and transmit them to the cutter head 1, ensuring the stability and accuracy of subsequent milling of the metal insert 66.

[0033] It also includes a spur gear 52 mounted on the output shaft of the servo motor 51, and a gear disk 53 rotating inside the cutter head 1. The gear disk 53 has convex teeth 54 fixed on its circumference that mesh with the spur gear 52. The servo motor 51 is controlled to turn on, and the spur gear 52 drives the gear disk 53 to rotate inside the cutter head 1 through the convex teeth 54.

[0034] Specifically, a lower helical tooth 55 is fixed on the bottom circumference of the gear disk 53, and a lower bevel gear 56 is provided on the outer side of the lower helical tooth 55. A lower electric push rod 57 is fixed on the outer side of the lower bevel gear 56. By opening multiple or one lower electric push rod 57, the meshing stroke between multiple or one lower bevel gear 56 and lower helical tooth 55 can be fully or independently adjusted to the correct position.

[0035] The convex tooth 54 is located inside the lower bevel gear 56, and the lower electric push rod 57 slides through the cutter head 1, while the outer side of the lower electric push rod 57 rotates with the cover 4.

[0036] In use: According to the material processing requirements, multiple or one lower electric push rods 57 are first opened, which drive multiple or one lower bevel gears 56 to move inward and engage with the lower helical teeth 55 on the gear plate 53. Then, the servo motor 51 is controlled to open, and the spur gear 52 and the convex teeth 54 drive the multiple or one lower helical teeth 55 and the lower bevel gear 56 to rotate through the gear plate 53, providing power for the subsequent fine adjustment and tool feeding of multiple or one metal blades 66.

[0037] Example 2, refer to Figures 1 to 7 This is the second embodiment of the present invention, which is based on the previous embodiment.

[0038] Specifically, a tool adjusting assembly is provided inside the housing 4. The tool adjusting assembly includes a metal blade 66 located on the outside of the housing 4 and adopts a hexagonal design. The cutting edge angle of each corner of the metal blade 66 increases sequentially in a clockwise direction. Through the design of six different cutting edge angles, the milling needs of different materials can be met. It is suitable for various material processing scenarios and does not require frequent replacement of the metal blade 66.

[0039] Arrows are provided on the side circumference of the metal blade 66, and each arrow corresponds to six different cutting edge angles on the metal blade 66. This facilitates visual inspection after the metal blade 66 has been finely adjusted to ensure that the cutting edge angles on the metal blade 66 are finely adjusted.

[0040] It also includes a worm gear 61 fixed to the outside of the lower electric push rod 57, and the worm gear 61 rotates with the cover 4. A worm wheel 62 meshes on the worm gear 61. Multiple or single rotating lower bevel gears 56 drive the worm wheels 62 on the multiple or single worm gears 61 to rotate accordingly through the lower electric push rod 57.

[0041] Specifically, the worm gear 62 is fitted with a concentric shaft 63 that rotates with the housing 4, and an angle sensor 64 for monitoring the rotation of the metal blade 66 is fixed on the outside of the concentric shaft 63. The angle sensor 64 monitors the rotation angle of the metal blade 66 in real time during the fine-tuning process, ensuring that the cutting edge angle on the metal blade 66 after fine-tuning meets the milling requirements of the current material.

[0042] Specifically, the inner side of the concentric shaft 63 is fixed with a mounting screw head 65 that is fixed to the metal blade 66, and the outer side of the mounting screw head 65 is threaded with an anti-loosening nut 67. Through the mounting screw head 65 and the anti-loosening nut 67, several sets of metal blades 66 can be quickly disassembled and replaced.

[0043] The cutter head 1 has marking numbers on its circumference, and each set of marking numbers corresponds to a metal blade 66. Different types of metal blades 66 can be installed according to each marking number. When replacing the metal blade 66, the markings also serve as a reference to prevent the metal blades 66 from being installed in the wrong position, and to avoid mixing, misinstallation, or even omission.

[0044] In use: Multiple or single rotating worm gears 62 drive multiple or single metal blades 66 to perform rotational fine-tuning actions through concentric shafts 63 until the cutting edge angles on the multiple or single metal blades 66 are rotated to meet the milling requirements of the current material. This satisfies the overall, local and independent fine-tuning needs of the metal blades 66, eliminating the need to frequently change metal blades 66 with different cutting edge angles, making it convenient, quick and more flexible.

[0045] A ratchet 8 is sleeved on the outer side of the concentric shaft 63, and a pawl 9 that rotates with the cover 4 is engaged on the ratchet 8. A compression spring 10 that is fixed to the cover 4 is fixed on the outer side of the pawl 9. The compression spring 10 provides elastic support for the pawl 9 that performs a skipping action on the ratchet 8, ensuring that the pawl 9 always performs a stable skipping action on the ratchet 8.

[0046] In use: During the fine adjustment of the cutting edge angle on multiple or single metal blades 66, the concentric shaft 63 rotating on multiple or single metal blades 66 synchronously drives the ratchet 8 to rotate, and drives the pawl 9, which is elastically pressed by the compression spring 10, to skip teeth on the rotating ratchet 8. Then, through the ratchet 8 and the pawl 9, a reverse restriction is applied to the multiple or single metal blades 66 during the fine adjustment, which improves the stability of the fine adjustment of the cutting edge angle on multiple or single metal blades 66 and also prevents the multiple or single metal blades 66 from shaking or displacing after fine adjustment.

[0047] Example 3, referring to Figures 1 to 7 This is the third embodiment of the present invention, which is based on the first two embodiments.

[0048] Specifically, the transmission assembly is equipped with a tool feeding assembly, which includes a displacement sensor 77 fixed on the outside of the housing 4 and monitors the tool feeding stroke of the metal blade 66 in real time. The displacement sensor 77 monitors the tool feeding distance of the metal blade 66 by measuring the displacement stroke of the housing 4, ensuring that the metal blade 66 is fed into place.

[0049] It also includes an upper helical tooth 71 circumferentially fixed to the top of the toothed disc 53, and an upper bevel gear 72 is provided on the outer side of the upper helical tooth 71. An upper electric push rod 73 that rotates with the cutter head 1 is fixed on the outer side of the upper bevel gear 72. By opening multiple or one upper electric push rod 73, the meshing stroke between multiple or one upper bevel gear 72 and upper helical tooth 71 can be fully or independently adjusted to the correct position.

[0050] Specifically, a threaded rod 74 is fixed to the outer side of the upper electric push rod 73, and a threaded cylinder 75 is threadedly connected to the outer side of the threaded rod 74. A guide rail 76 that slides with the cutter head 1 is fixed to the outer side of the threaded cylinder 75. The guide rail 76 plays a sliding limiting role for the threaded cylinder 75 and the metal blade 66 on the cover 4 during the stroke adjustment, thereby improving the stability of the metal blade 66's stroke feeding.

[0051] In use: First, multiple or one upper electric push rods 73 are opened, which drive multiple or one upper bevel gears 72 to move inward and engage with the upper helical teeth 71 on the gear plate 53. Then, the servo motor 51 is controlled to open, and the spur gear 52 and the convex teeth 54 drive the multiple or one upper helical teeth 71 and upper bevel gear 72 to rotate through the gear plate 53.

[0052] Meanwhile, if one or a single rotating upper bevel gear 72 corresponds to the upper electric push rod 73, it drives the threaded cylinder 75 on multiple or a single threaded rod 74 to push or pull forward or backward. The multiple or a single stroke of the threaded cylinder 75 pushes and pulls, and through the cover 4, it drives multiple or a single metal blade 66 that has been finely adjusted to the position to move forward or backward. Then, the multiple or a single metal blade 66 is fed to the milling position that matches the current material, which satisfies the overall, partial and independent feeding needs of the metal blade 66. It replaces the traditional tool disassembly and assembly method, saves time and effort, and has higher feeding accuracy.

[0053] During the cutting process, the lower electric push rod 57 and its components, which are initially closed, also follow the metal blade 66 on the housing 4 and are pushed and pulled back and forth in the cutter head 1. Multiple or single threaded rods 74 and threaded cylinders 75 form a self-locking state through threaded engagement, thereby positioning the metal blade 66 on the housing 4 that has been pushed and pulled back and forth, ensuring that its cutting position is stable.

[0054] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. A milling cutter disc with easily adjustable insert mounting position, characterized in that: Includes end cap (2) on the cutter head (1), and has a spindle hole for insertion through the external milling machine spindle, and the cutter head (1) is bolted to the external milling machine spindle through the ear seat (3); A transmission component is provided inside the cutter head (1), and the transmission component is driven by a servo motor (51) embedded in the cutter head (1); A blade adjusting assembly is provided inside the housing (4), and the blade adjusting assembly includes a metal blade (66) disposed on the outside of the housing (4). The transmission assembly is equipped with a tool feeding assembly, which includes a displacement sensor (77) fixed on the outside of the housing (4) and monitors the tool feeding stroke of the metal blade (66) in real time.

2. The milling cutter head as described in claim 1, characterized in that: The transmission assembly also includes a spur gear (52) sleeved on the output shaft of the servo motor (51), and a toothed disc (53) rotating inside the cutter head (1), with protruding teeth (54) fixed on the circumference of the toothed disc (53) to mesh with the spur gear (52).

3. The milling cutter head as described in claim 2, characterized in that: The bottom circumference of the gear disk (53) is fixed with a lower helical tooth (55), and a lower bevel gear (56) is provided on the outer side of the lower helical tooth (55). A lower electric push rod (57) is fixed on the outer side of the lower bevel gear (56).

4. The milling cutter head as described in claim 2 or 3, characterized in that: The convex tooth (54) is located inside the lower bevel gear (56), and the lower electric push rod (57) slides through the cutter head (1), while the outer side of the lower electric push rod (57) rotates with the cover (4).

5. The milling cutter head as described in claim 3, characterized in that: The knife adjusting assembly also includes a worm gear (61) fixed to the outside of the lower electric push rod (57), and the worm gear (61) rotates with the cover (4), and a worm wheel (62) meshes on the worm gear (61).

6. The milling cutter head as described in claim 5, characterized in that: The worm gear (62) is fitted with a concentric shaft (63) that rotates with the cover (4), and an angle sensor (64) for monitoring the rotation of the metal blade (66) is fixed on the outside of the concentric shaft (63).

7. The milling cutter head as described in claim 6, characterized in that: The inner side of the concentric shaft (63) is fixed with a mounting screw head (65) that is fixed to the metal blade (66), and the outer side of the mounting screw head (65) is threaded with an anti-loosening nut (67). The cutting edge angle of the metal blade (66) increases sequentially in the clockwise direction.

8. The milling cutter head as described in claim 6, characterized in that: A ratchet (8) is sleeved on the outer side of the concentric shaft (63), and a pawl (9) that rotates with the cover (4) is engaged on the ratchet (8). A compression spring (10) that is fixed to the cover (4) is fixed on the outer side of the pawl (9).

9. The milling cutter head as described in claim 2, characterized in that: The tool feeding assembly also includes an upper helical tooth (71) circumferentially fixed on the top of the toothed disc (53), and an upper bevel gear (72) is provided on the outer side of the upper helical tooth (71). An upper electric push rod (73) that rotates with the tool disc (1) is fixed on the outer side of the upper bevel gear (72).

10. The milling cutter head as described in claim 9, characterized in that: The upper electric push rod (73) is fixed with a threaded rod (74) on the outside, and a threaded cylinder (75) is threadedly connected to the outside of the threaded rod (74). A guide rail (76) that slides with the cutter head (1) is fixed to the outside of the threaded cylinder (75).

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