A milling machine for processing drill bits

Abstract

The utility model discloses a milling machine for drill bit processing, including milling platform, slide rail seat, multi -shaft cutter platform, drive seat and two -axis positioning assembly, wherein multi -shaft cutter platform is used for the positioning clamping of drill bit, is provided with X -axis slide rail and Y -axis slide rail on slide rail seat, realizes the biaxial adjustment of drill bit position and opposite, two -axis positioning assembly includes fixed axle disc, carousel seat, drill bit seat and transmission axle stem, and cooperates first output shaft and second output shaft, realizes biaxial linkage control through the two drive motors of setting in drive seat, the drill bit seat adopts the expansion chuck structure, is suitable for multi -specification milling cutter head clamping. This structure can realize accurate adjustment and stable clamping of drill bit under the multi -angle, promotes the processing flexibility and the degree of automation, is suitable for the precision machining of complex shape drill bit.

Description

Technical Field

[0001] This utility model relates to the field of drill milling machine technology, specifically a milling machine for drill bit processing. Background Technology

[0002] In existing drill bit processing equipment, traditional milling machines typically employ a single-axis or limited multi-axis movement structure for drill bit positioning and machining. These machines mostly rely on manual adjustment of clamping components and positioning mechanisms, resulting in low overall automation and problems such as insufficient positioning accuracy, complex operation, and poor machining flexibility. In practical applications, operators need to frequently adjust the tool holder angle and clamping position to accommodate drill bits of different sizes and structures, making both machining efficiency and accuracy significantly affected by human factors.

[0003] Taking common structures as an example, most existing milling machines adopt fixed slide rails and unidirectional drive chuck structures, which can only achieve simple linear adjustment and cannot meet the precise control requirements of complex geometric drill bits or multi-angle machining. At the same time, although some equipment is equipped with electric drive modules, they are mostly single-axis output structures, with long power transmission paths or unreasonable structural layouts, resulting in poor system stability, large vibrations during machining, and unsuitability for high-precision operations.

[0004] In addition, in traditional drill bit mounting structures, most milling cutter holders use mechanical clamping or external thread fastening, which has poor adaptability and is not conducive to the rapid replacement and secure clamping of multiple specifications and forms of cutting tools, thus limiting the equipment's adaptability to various process requirements.

[0005] In terms of power transmission structure, existing equipment often lacks a reasonable multi-axis linkage control design. Especially when the drill bit is positioned or rotated in linkage with multiple axes at the same time, there are problems such as difficulty in transmission coupling, uneven torque distribution, and unstable output accuracy, which affect the processing quality and the long-term reliability of the equipment.

[0006] Therefore, existing milling machines for drilling bit processing still have significant shortcomings in terms of structural compactness, machining accuracy, clamping adaptability, and automatic control capabilities. There is an urgent need for a new type of milling machine solution that can achieve precise multi-axis linkage positioning, has a reasonable structure, reliable transmission, and is suitable for machining multiple specifications of drill bits, so as to meet the current practical needs of efficient and precision machining. Utility Model Content

[0007] This utility model aims to solve one of the technical problems existing in the prior art or related technologies.

[0008] Therefore, the technical solution adopted by this utility model is as follows: a milling machine for drilling bit processing, comprising: a milling table and a two-axis positioning assembly. The top surface of the milling table is fixedly mounted with a slide rail seat and a drive seat. A multi-axis tool holder is slidably mounted on the surface of the slide rail seat for clamping and positioning the drill bit to be processed. The two-axis positioning assembly is located at one end of the drive seat and includes a fixed-axis plate, a rotary table seat, a drill bit seat, and a transmission shaft rotatably disposed between the inner sides of the fixed-axis plate and the rotary table seat. A first output shaft and a second output shaft are disposed on the inner side of the fixed-axis plate. The rotary table seat is rotatably mounted on the outer surface of the fixed-axis plate, and a toothed ring that meshes with the first output shaft is fixedly mounted on its bottom surface. The drill bit seat is rotatably mounted on the surface of the rotary table seat, and one side of the drill bit seat is provided with output teeth that mesh with the transmission shaft. The second output shaft meshes with the transmission shaft, jointly driving the drill bit seat to rotate, achieving multi-angle installation and adjustment. This structure enables angle adjustment and attitude control of the drill bit before processing, improving processing accuracy and flexibility.

[0009] In one possible implementation, the multi-axis tool holder includes an X-axis slide rail, a Y-axis slide rail, and a clamp for holding the drill bit. The Y-axis slide rail is rotatably mounted on the slider of the X-axis slide rail, and the clamp is rotatably mounted on the slider of the Y-axis slide rail. The entire X-axis slide rail is slidably mounted on the surface of the slide rail seat. This structure allows for adjustable control of the clamp's sliding position and clamping direction within a plane. Combined with the drill bit angle adjustment function, it provides dual control over the machining position and angle. This structure allows for rapid adjustment of the drill bit clamping position and direction in the horizontal plane, improving operational efficiency and adaptability.

[0010] In one possible implementation, the inner side of the drive base is provided with two drive motors, which are used to drive the first output shaft and the second output shaft respectively. The second output shaft is sleeved inside the first output shaft, forming a coaxial dual-axis output mechanism. This structure can achieve independent driving of the turntable base and the drill bit base through dual motors, improving the multi-axis control accuracy and response speed.

[0011] In one possible implementation, the drill bit holder employs a shrink-fit chuck structure for clamping milling cutter heads of different sizes. The shrink-fit chuck has the advantages of compact structure, uniform clamping force, and strong adaptability. This structure enhances the adaptability to tools of different diameters and specifications, improving tool changing efficiency and clamping reliability.

[0012] In one possible implementation, the two ends of the drive shaft are rotatably mounted between the inner surfaces of the fixed-axis disk and the turntable seat, respectively, and the drive shaft is located along the axis of the gear ring and is arranged at an angle. This angled transmission design ensures effective coupling between the power transmission direction and the output angle, optimizing the transmission structure space.

[0013] In one possible implementation, the surface of the drive shaft is provided with bevel gear structures that mesh with the second output shaft and the output teeth, respectively. The bevel gear design ensures efficient transmission of angular power between the two ends. This structure enables reliable angular transformation transmission between multiple shafts, improving equipment stability.

[0014] In one possible implementation, a control panel is provided on the surface of the drive base. The output terminal of the control panel is electrically connected to the input terminal of the drive motor. The two drive motors are a servo motor connected to the first output shaft and an electric spindle connected to the second output shaft, respectively. This structure realizes electrified intelligent control of multi-axis drive and supports automated machining processes.

[0015] In summary, the milling machine for drill bit processing provided by this utility model has a reasonable structure, integrating multi-axis adjustment, intelligent control and clamping compatibility into one, and has significant advantages such as flexible adjustment, accurate positioning, high degree of automation and high processing efficiency. It is suitable for high-precision milling processing scenarios of various types and specifications of drill bits.

[0016] The beneficial effects achieved by this utility model are as follows: 1. In this utility model, a slide rail base and a multi-axis tool holder are provided, and combined with a drive base and a two-axis positioning assembly located on one side, to achieve precise positioning and multi-angle machining control of the drill bit. The multi-axis tool holder can achieve fine adjustment of the clamping seat through the X-axis and Y-axis slide rails, improving machining accuracy and flexibility; the two-axis positioning assembly, through the coupling transmission between the first output shaft, the second output shaft, and the transmission shaft, achieves multi-axis linkage control of the drill bit base, effectively improving the stability of the milling cutter installation and positioning.

[0017] 2. In this invention, the independent rotation of the two output shafts is controlled by drive motors, enabling automated control under complex working conditions and improving equipment processing efficiency. The transmission shaft is positioned on the gear ring axis and arranged at an angle, combined with a bevel gear structure, optimizing the power transmission path and enhancing the reliability and durability of the device. The overall structure is compact and the transmission is precise, making it suitable for the efficient processing of various drill bits. It features accurate positioning, easy operation, and a high degree of automation, significantly improving the performance and application value of drill bits processed by milling machines. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of one embodiment of the present utility model; Figure 2 This is one embodiment of the present utility model. Figure 1 A schematic diagram of the structure at point A; Figure 3 This is a schematic diagram of the drive seat and two-axis positioning assembly structure according to an embodiment of the present invention; Figure 4This is a schematic diagram of the cross-sectional structure of a biaxial positioning component according to an embodiment of the present invention; Figure 5 This is an exploded structural diagram of a two-axis positioning component according to an embodiment of the present invention.

[0019] Figure label: 100. Milling table; 110. Slide rail base; 120. Multi-axis tool holder; 130. Drive base; 121. Drill bit blank; 200, Two-axis positioning assembly; 210, Fixed axis disk; 220, Turntable base; 230, Drill bit base; 240, Transmission shaft; 211, First output shaft; 212, Second output shaft; 221, Gear ring; 231, Output gear. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings. It should be noted that, unless otherwise specified, the embodiments and features of the present utility model can be combined with each other.

[0021] It should be understood that these descriptions are merely exemplary and are not intended to limit the scope of this invention.

[0022] The following describes, with reference to the accompanying drawings, some embodiments of a milling machine for drilling bit processing provided by this utility model.

[0023] Combination Figures 1-5 As shown, the present invention provides a milling machine for drilling bit processing, comprising: a milling table 100 and a two-axis positioning assembly 200.

[0024] The top surface of the milling table 100 is fixedly mounted with a slide rail seat 110 and a drive seat 130. A multi-axis tool holder 120 is slidably mounted on the surface of the slide rail seat 110. The multi-axis tool holder 120 is used for positioning the drill bit blank (121) to be processed. In this embodiment, the multi-axis tool holder 120 is used to clamp the drill bit blank 121 and adjust its position during processing through its slide rail system.

[0025] The dual-axis positioning assembly 200 is located at one end of the drive seat 130 and is used to realize multi-angle installation and attitude adjustment of the drill bit 121. Specifically, it includes a fixed axis plate 210, a turntable seat 220, a drill bit seat 230, and a transmission shaft 240.

[0026] The fixed-axis disk 210 provides a reference support for the rotating structure. A first output shaft 211 and a second output shaft 212 are rotatably mounted on its inner side, with the second output shaft 212 sleeved inside the first output shaft 211. The turntable seat 220 is rotatably mounted on the outer surface of the fixed-axis disk 210, and a gear ring 221 is fixedly mounted on its bottom surface. The gear ring 221 meshes with the outer surface of the first output shaft 211 to drive the rotation of the turntable seat 220.

[0027] The drill bit holder 230 is rotatably mounted on the outer surface of the rotary table 220. One side of the drill bit holder 230 has an output tooth 231 located inside the rotary table 220, which meshes with the surface of the drive shaft 240. The second output shaft 212 also meshes with the drive shaft 240, which is positioned between the fixed-axis plate 210 and the rotary table 220. Through meshing with the output tooth 231, the drive shaft 240 drives the drill bit holder 230 to rotate around its axis, thus achieving angle adjustment. The surface of the drive shaft 240 is provided with transmission bevel teeth that mesh with both the second output shaft 212 and the output tooth 231.

[0028] The transmission shaft 240 is inclined, with its two ends rotatably mounted on the inner wall surfaces of the fixed shaft disk 210 and the turntable seat 220, respectively, and located on the axis of the gear ring 221. In this embodiment, the two ends of the transmission shaft 240 are provided with bevel gear structures, which mesh with the second output shaft 212 and the output gear 231, ensuring the stability and directional accuracy of the transmission.

[0029] In a preferred embodiment, the multi-axis tool holder 120 further includes an X-axis slide rail, a Y-axis slide rail, and a clamping seat. The X-axis slide rail is slidably mounted on the surface of the slide rail seat 110; the Y-axis slide rail is rotatably mounted on the slider of the X-axis slide rail; and the clamping seat is rotatably mounted on the slider of the Y-axis slide rail. This arrangement enables two-dimensional translation of the clamping seat and adjustability of the clamping direction, facilitating accurate clamping of the drill bit blank 121 and adjusting its orientation according to processing needs.

[0030] The drive base 130 is equipped with two drive motors: a servo motor and an electric spindle. The servo motor drives the first output shaft 211 to rotate, thereby controlling the rotation of the turntable base 220 around the vertical direction and changing the overall orientation of the drill bit base 230. The electric spindle drives the second output shaft 212 to rotate, and in conjunction with the transmission shaft 240, further drives the output gear 231 to achieve fine adjustment of the rotation angle of the drill bit base 230.

[0031] In this embodiment, the drill bit holder 230 adopts an expansion chuck structure, suitable for clamping milling cutter heads of different specifications. This structure can achieve quick replacement and high-stability clamping through mechanical expansion or radial tensioning mechanisms, improving machining versatility and reliability.

[0032] In terms of control, the surface of the drive housing 130 is equipped with a control panel for setting parameters and real-time control of the two drive motors. The output of the control panel is electrically connected to the input of the servo motor and the electric spindle. Users can set parameters such as the rotational speed and angle range of the first output shaft 211 and the second output shaft 212 through the control panel to meet different machining requirements.

[0033] In summary, this utility model, through the organic cooperation between multiple components such as the milling table 100, slide rail 110, multi-axis tool holder 120, drive seat 130 and two-axis positioning assembly 200, constructs a high-efficiency milling machine device with a compact structure, stable clamping, flexible angle adjustment, and adaptability to the processing needs of multi-specification drill bits.

[0034] Working principle and usage process of this utility model: This invention achieves high-precision positioning and multi-angle automatic machining of drill bits through the coordinated operation of a multi-axis tool holder on a milling table and a two-axis positioning assembly on the side. The multi-axis tool holder 120, through its X-axis and Y-axis slide rail structures, enables precise movement and rotation adjustment of the clamping seat in two horizontal directions, thereby accurately clamping the drill bit blank 121 to be machined.

[0035] The dual-axis positioning assembly 200 is internally constructed with a dual-axis drive transmission mechanism. The first output shaft 211 drives the turntable 220 to rotate, causing the drill bit holder 230 to rotate as a whole. The second output shaft 212, through a transmission shaft 240, links with the output teeth 231 inside the drill bit holder 230, further controlling the clamping angle of the drill bit holder 230 to achieve compound attitude adjustment. The drive base 130 houses a servo motor and an electric spindle, which respectively drive the two output shafts to rotate, thereby achieving dual-axis adjustment and automatic control of the drill bit's machining direction and angle.

[0036] The transmission shaft 240 is located on the axis and is arranged at an angle. Through the bevel gear transmission structure that meshes with the second output shaft 212 and the output gear 231 at both ends, the power transmission is smooth and the angle output is accurate.

[0037] In the description of this specification, the terms "one embodiment," "some embodiments," "specific embodiment," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0038] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A milling machine for drilling bit processing, characterized in that, include: A milling table (100) and a two-axis positioning assembly (200) are provided. A slide rail seat (110) and a drive seat (130) are fixedly mounted on the top surface of the milling table (100). A multi-axis tool post (120) is slidably mounted on the surface of the slide rail seat (110) for positioning the drill bit to be processed. The two-axis positioning assembly (200) is located at one end of the drive seat (130) and includes a fixed-axis disk (210), a turntable seat (220), a drill bit seat (230), and a transmission shaft (240) rotatably mounted inside the fixed-axis disk (210) and the turntable seat (220). The inner side of the fixed-axis disk (210)... The turntable (220) is rotatably mounted with a first output shaft (211) and a second output shaft (212). The turntable (220) is rotatably mounted on the surface of the fixed shaft disk (210), and a gear ring (221) that meshes with the surface of the first output shaft (211) is fixedly mounted on the bottom surface of the turntable (220). The drill bit holder (230) is rotatably mounted on the surface of the turntable (220), and one side of the drill bit holder (230) is provided with an output tooth (231) located inside the turntable (220). The surfaces of the second output shaft (212) and the output tooth (231) mesh with the surface of the transmission shaft rod (240). The drill bit holder (230) is used for milling cutter mounting.

2. The milling machine for drilling bit processing according to claim 1, characterized in that, The multi-axis tool holder (120) includes an X-axis slide rail, a Y-axis slide rail, and a clamp for the drill bit to be processed. The Y-axis slide rail is rotatably mounted on the surface of the X-axis slide rail slider, and the clamp is rotatably mounted on the surface of the Y-axis slide rail slider. The X-axis slide rail is slidably mounted on the surface of the slide rail seat (110).

3. The milling machine for drilling bit processing according to claim 1, characterized in that, The drive base (130) is provided with two drive motors on its inner side, which are used to drive the first output shaft (211) and the second output shaft (212) to rotate respectively. The second output shaft (212) is rotated and sleeved on the inner side of the first output shaft (211).

4. The milling machine for drilling according to claim 1, characterized in that, The drill bit holder (230) is an expansion chuck structure used to hold the milling cutter head.

5. The milling machine for drilling according to claim 1, characterized in that, The two ends of the drive shaft (240) are rotatably mounted on the surfaces of the fixed shaft disk (210) and the turntable seat (220), respectively. The drive shaft (240) is located on the axis of the gear ring (221) and is arranged at an angle.

6. The milling machine for drilling according to claim 1, characterized in that, The surface of the transmission shaft (240) is provided with transmission bevel teeth that mesh with the surfaces of the second output shaft (212) and the output teeth (231), respectively.

7. The milling machine for drilling according to claim 1, characterized in that, The drive base (130) is provided with a control panel, and the output end of the control panel is electrically connected to the input end of two drive motors. The two drive motors are a servo motor connected to the end of the first output shaft (211) and an electric spindle connected to the end of the second output shaft (212).

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