A universal boring and milling power head assembly

Abstract

This invention relates to the field of boring and milling power head technology, and in particular to a universal boring and milling power head assembly, comprising a rotating tool head, a first rotating base rotatably mounted on the upper end of the rotating tool head, a second rotating base rotatably mounted on the upper end of the first rotating base, and an angle head mounted on the second rotating base; a bevel gear box, in which a tool is housed, and the bevel gear box is used to drive the tool to rotate for machining; an angle disk, on which a magnetic grating angle encoder is mounted; and a braking assembly, which is used to engage with the outer wall of the angle disk after rotating to a set angle value, fixing and limiting it. The angle is adjusted by a drive motor. Combined with worm gear self-locking, friction limiting, cooling check, and multiple limiting structures, high-precision and high-stability angle adjustment and fixing are achieved, avoiding angle deviation during machining, improving the machining accuracy and reliability of universal boring and milling, and possessing advantages such as a wide adjustable angle range, high precision, and the ability to withstand increased output cutting forces.

Description

Technical Field

[0001] This invention relates to the field of boring and milling power head technology, and in particular to a universal boring and milling power head assembly. Background Technology

[0002] In existing boring and milling equipment, the universal angle head, as a key component for multi-angle machining, is widely used in high-precision machining tasks, especially in mold manufacturing, aerospace, and complex parts machining. Traditional universal angle heads mostly employ a mechanical, manual adjustment structure, where the tool angle is adjusted by manually rotating an angle dial. These structures typically rely on worm gears or gear mechanisms for angle adjustment, resulting in a limited adjustment range and difficulty in guaranteeing accuracy due to the repetitive nature of manual operation. Furthermore, to maintain angle stability during machining, existing technologies commonly use fastening screws or clamping devices to lock and fix the angle head. However, under high loads or continuous machining conditions, there is still a risk of insufficient locking force and structural loosening, which can easily cause tool deviation and affect machining accuracy. While some improved solutions introduce motor drives to achieve automated angle adjustment, these are mostly limited to the integration of the drive unit and fail to achieve efficient linkage between the mechanical structure and the electrical control system, thus failing to balance the comprehensive performance of precision adjustment, fixed locking, and dynamic response.

[0003] Existing patent application CN119733861A discloses a universal cutting power milling and drilling boring head, including a spindle box, a gearbox and a universal connecting column fixedly mounted on the spindle box, and a motor fixedly mounted on the surface of the gearbox; a connecting plate fixedly mounted on the universal connecting column, and a connecting assembly between the connecting plate and the adapter plate; a first sealing gasket fixedly mounted between the spindle box and the gearbox, a second sealing gasket fixedly mounted on the surface of the gearbox, and a third sealing gasket fixedly mounted on the inner surface of the second sealing gasket. This universal cutting power milling and drilling boring head improves the sealing performance of the gearbox and reduces noise transmission by placing the gearbox outside the spindle box and setting the second and third sealing gaskets on the outer surface of the gearbox. The device is universally adjustable and can be mounted on various machine tools; however, this technical solution cannot meet the requirements of high-precision machining when adjusting the angle, and the vibration that occurs during machining can easily lead to angle deviation, thereby affecting the machining accuracy.

[0004] In summary, existing universal angle heads still have many shortcomings in terms of high-precision adjustment, stable fixation, automated control, and vibration resistance during machining. First, traditional mechanical angle adjustment structures are time-consuming and cumbersome to operate, and their accuracy is greatly affected by human factors. Second, most existing fixing structures use single-point or friction locking, which are prone to displacement under cutting force interference and lack multiple limit protection mechanisms. Third, although worm gears have a certain self-locking performance, they suffer from problems such as backlash or unstable meshing under long-term operation or stress conditions, and cannot fully meet the high stability requirements. Fourth, the angle plate is prone to angle drift due to thermal expansion and vibration during high-speed milling operations, and existing structures often neglect heat dissipation and stabilization measures for the angle plate. In addition, existing technologies often neglect the coupling design with the drive system, resulting in response lag and poor control accuracy between the mechanical structure and electrical control. Summary of the Invention

[0005] In view of the problems existing in the prior art, the present invention is proposed.

[0006] To solve the above-mentioned technical problems, the present invention provides the following technical solution: a universal boring and milling power head assembly, including a rotating cutter head, a first rotating base rotatably sleeved on the upper end of the rotating cutter head, a second rotating base rotatably mounted on the upper end of the first rotating base, and an angle head provided on the second rotating base;

[0007] A bevel gearbox contains a cutting tool inside a rotating tool head and is used to drive the tool to rotate for machining.

[0008] Angle disc, equipped with a magnetic grating angle encoder, is used to control the rotation angle and perform braking;

[0009] The braking assembly is movably fitted to the outer wall of the angle disc. The braking assembly is used to fit against the outer wall of the angle disc after it is rotated to a set angle value, and to fix and limit its movement.

[0010] In a preferred embodiment of the universal boring and milling power head assembly of the present invention, a first drive motor is further provided on the first rotating base, and a second drive motor is further provided on the second rotating base;

[0011] The first drive motor is used to drive the rotating cutter head to adjust the swing angle, and the second drive motor is used to drive the first rotating base to adjust the horizontal rotation angle relative to the second rotating base.

[0012] As a preferred embodiment of the universal boring and milling power head assembly of the present invention, the braking component includes a limiting cylinder, the outer wall of the limiting cylinder has a cavity, the edge of the angle disk is rotatably disposed in the cavity, and the inner wall of the cavity is symmetrically and slidably provided with a braking column.

[0013] As a preferred embodiment of the universal boring and milling power head assembly of the present invention, a rotating cavity is further provided inside the cavity, and a metering roller is rotatably provided inside the rotating cavity. The outer wall of the metering roller is in contact with the outer wall of the angle disk and rotates synchronously therewith.

[0014] As a preferred embodiment of the universal boring and milling power head assembly of the present invention, a tapered cylinder is concentrically provided on the end face of the metering roller, a roller is fitted against the outer wall of the tapered cylinder, a guide post is slidably provided at the center of the roller, the roller is slidably provided on the outer wall of the guide post, and the guide post rotates synchronously when the roller rotates.

[0015] As a preferred embodiment of the universal boring and milling power head assembly of the present invention, a universal joint is provided at the end of the guide column, a metering pump is provided at the other end of the universal joint, a sealing cavity is symmetrically opened on the inner wall of the cavity, a first pipeline is provided between the sealing cavity and the metering pump, and a brake column is slidably sealed on the inner wall of the sealing cavity.

[0016] As a preferred embodiment of the universal boring and milling power head assembly of the present invention, wherein: inclined brackets are fixedly provided on the outer walls of both sides of the roller, a movable rod is vertically slidably provided on the inclined bracket, a rack is vertically provided on the end face of the movable rod, and a first elastic element is provided between the rack and the inclined bracket.

[0017] As a preferred embodiment of the universal boring and milling power head device assembly of the present invention, two racks are symmetrically provided, and a gear is rotatably provided inside the limiting cylinder. The gear meshes with the two racks at the same time, and when the gear rotates, it drives the two racks to slide in opposite directions.

[0018] The gear is equipped with an adjusting rod that rotates coaxially, and an adjusting wheel is located at one end of the adjusting rod that passes through the conical cylinder.

[0019] As a preferred embodiment of the universal boring and milling power head assembly of the present invention, a sawtooth groove is fixedly provided on the end face of the angle plate coaxially, and a limiting post is slidably provided in the cavity. A second elastic element is provided between the limiting post and the inner wall of the cavity. The second elastic element is used to push the limiting post to slide and fit into the sawtooth groove. The limiting post includes a vertical surface and an inclined surface.

[0020] As a preferred embodiment of the universal boring and milling power head assembly of the present invention, a check chamber is further provided inside the sealing cavity, and a safety disc is provided on the outer wall of the brake column, the safety disc dividing the check chamber into upper and lower sealing cavities;

[0021] A flared opening is provided on the cavity, a sealing ball is movably disposed inside the flared opening, a floating column is provided on the outer wall of the sealing ball, the floating column is slidably disposed inside the flared opening along its axial direction, and a third elastic element is provided between the sealing ball and the flared opening.

[0022] The end of the floating column away from the sealing ball is fitted with a universal ball, and the safety disc has an inclined step in its circumferential array. The universal ball rolls freely in contact with the inclined step.

[0023] The beneficial effects of this invention are as follows: High-precision angle adjustment is achieved by controlling the angle adjustment with a drive motor. Simultaneously, the automatic universal angle head with a worm gear and worm wheel design enables self-locking, increasing the output cutting force and improving both the angle adjustment range and accuracy. After the metering roller and angle disk rotate synchronously to the set angle value, the brake pin slides outwards, performing frictional deceleration and limiting fixation on the upper and lower sides of the angle disk. This achieves rapid braking and fixed limiting, preventing tool loosening during machining and ensuring the machining angle remains effective. Precise angle adjustment is achieved by adjusting the transmission ratio. The linkage between the drive motor and the mechanical and electrical interlocking system further enhances the accuracy of the final angle adjustment, meeting the high-precision machining requirements of universal boring and milling. The limiting pin prevents the angle disk from rotating back, and the check chamber cools the angle disk while generating negative pressure for multiple limiting fixations, preventing angle deviation due to vibration during boring and milling. Attached Figure Description

[0024] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. 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. Wherein:

[0025] Figure 1 This is a schematic diagram of the overall assembly of the universal boring and milling power head device in this invention.

[0026] Figure 2 This is a schematic diagram of the internal structure of the universal boring and milling power head assembly in this invention.

[0027] Figure 3 This is a cross-sectional schematic diagram of the universal boring and milling power head assembly in this invention.

[0028] Figure 4 This is a schematic diagram of the angle disc and braking assembly in this invention.

[0029] Figure 5 This is a diagram of the internal structure of the braking assembly in this invention.

[0030] Figure 6 This is a schematic diagram of the cooperation between the metering roller and the roller in this invention.

[0031] Figure 7 This is a schematic diagram of the internal structure of the sealed cavity in this invention.

[0032] Figure 8 For the present invention Figure 7 Schematic diagram of area A in the middle.

[0033] Reference numerals: 100, Rotary cutter head; 101, First rotating base; 102, Second rotating base; 103, Angle head; 200, Bevel gearbox;

[0034] 300, Angle plate; 3001, Serrated groove; 3002, Limiting post; 3003, Check valve cavity; 3004, Trumpet mouth; 3005, Sealing ball; 3006, Floating post; 3007, Third elastic element; 3008, Universal ball; 3009, Inclined step;

[0035] 400, Braking assembly; 4001, Limiting cylinder; 4002, Cavity; 4003, Braking column; 4004, Rotating cavity; 4005, Metering roller; 4006, Conical cylinder; 4007, Roller; 4008, Guide column; 4009, Universal joint; 4011, Metering pump; 4012, Sealing cavity; 4013, First pipeline; 4014, Inclined bracket; 4015, Movable rod; 4016, Rack; 4017, Gear; 4018, Adjusting rod; 4019, Adjusting wheel; 4027, First elastic element. Detailed Implementation

[0036] 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.

[0037] 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.

[0038] 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.

[0039] Example 1

[0040] Reference Figures 1-8 This is the first embodiment of the present invention. This embodiment provides a universal boring and milling power head assembly. The angle adjustment is controlled by a drive motor to achieve high-precision angle adjustment. At the same time, the automatic universal angle head with worm gear and worm can achieve self-locking, which can withstand the output cutting force and improve the angle adjustment range and accuracy.

[0041] Specifically, a universal boring and milling power head assembly includes a rotary cutter head 100, a first rotary base 101 is rotatably sleeved on the upper end of the rotary cutter head 100, a second rotary base 102 is rotatably mounted on the upper end of the first rotary base 101, and an angle head 103 is provided on the second rotary base 102;

[0042] The bevel gearbox 200 is used to drive the cutting tool to rotate for machining within the rotating cutter head 100.

[0043] Angle disk 300, wherein a magnetic grating angle encoder is provided on the angle disk 300 for precise control of rotation angle and braking;

[0044] A braking assembly 400 is movably fitted to the outer wall of the angle disk 300. The braking assembly 400 is used to fit to the outer wall of the angle disk 300 after rotating to a set angle value, and to fix and limit its movement.

[0045] The first rotating base 101 and the second rotating base 102 rotate in contact to achieve 360° rotation of the tool in the horizontal direction. The second rotating base 102 and the angle head 103 swing and rotate to adjust the angle between the tool and the horizontal plane.

[0046] Preferably, the first rotating base 101 is further provided with a first drive motor, and the second rotating base 102 is further provided with a second drive motor. The angle disk 300 is used to control the rotation angle of the tool, and the bevel gear box 200 serves as a power transmission medium to transmit power to the rotating tool head 100.

[0047] The first drive motor is used to drive the rotating cutter head 100 to adjust the swing angle, and the second drive motor is used to drive the first rotating base 101 to adjust the horizontal rotation angle relative to the second rotating base 102.

[0048] Among them, such as Figure 2 As shown, in this embodiment, the two drive motors are joint servo motors and are driven by worm gears to achieve the functions of rotation and locking. The motors are precisely controlled to rotate through PLC angle adjustment control software, so as to realize the rotation of the first rotating base 101 relative to the rotating tool head 100 and the rotation of the second rotating base 102 about the first rotating base 101.

[0049] The universal boring and milling head has an output cutting torque of 18~150 N.m and a speed of 0~6000 rpm;

[0050] Preferably, the PLC angle adjustment control accuracy is 1 / 1000 degree, the horizontal direction second drive motor rotation angle adjustment range is ±180°, and the normal direction can achieve ±90° rotation.

[0051] More preferably, a magnetic ring encoder is used to achieve worm gear shaft feedback precision control, and the angle positioning and fixing are achieved through the hydraulic self-locking structure of the braking assembly 400.

[0052] Preferably, the angle head 103 can be detachably mounted with a milling cutter or drill bit and transmit power. There are two angle disks 300, which are connected to the angle head 103 and the first rotating base 101 respectively and rotate synchronously with them. The angle disks 300 can be firmly fixed by the braking assembly 400 to prevent angle changes caused by vibration during the cutting and boring process.

[0053] Furthermore, such as Figure 3 As shown, the internal transmission mechanism controlled by the drive motor uses a worm gear, which is self-locking after the position is adjusted to prevent the angle from changing due to vibration during the processing, thus affecting the angle accuracy and processing accuracy.

[0054] The bevel gearbox 200 has two layers, which mesh with the ends of the angle head 103 and the rotary cutter head 100 respectively for transmission, so that when the angle head 103 rotates, the bevel gearbox 200 directly drives the rotary cutter head 100 to rotate.

[0055] Example 2

[0056] Reference Figures 1-5 This is the second embodiment of the present invention, which is based on the previous embodiment. The difference is that after the metering roller 4005 rotates synchronously with the angle disk 300 to the set angle value, it pushes the brake column 4003 to slide outward and frictionally decelerates and limits the angle disk 300 with the upper and lower sides, thereby achieving rapid braking and fixed limit, preventing the tool from loosening during processing and affecting the processing angle. By adjusting the transmission ratio, precise angle adjustment is achieved. The linkage drive motor realizes mechanical + electrical interlocking, making the final angle adjustment more accurate and meeting the needs of universal boring and milling for high-precision processing.

[0057] Specifically, the braking assembly 400 includes a limiting cylinder 4001, the outer wall of the limiting cylinder 4001 has a cavity 4002, the edge of the angle disk 300 is rotatably disposed in the cavity 4002, and the inner wall of the cavity 4002 is symmetrically provided with a braking column 4003.

[0058] The cavity 4002 also has a rotating cavity 4004, and a metering roller 4005 is rotatably installed in the rotating cavity 4004. The outer wall of the metering roller 4005 is attached to the outer wall of the angle disk 300 and rotates synchronously with it.

[0059] The cavity 4002 is a semi-cylindrical cavity. The outer edge of the angle disk 300 rotates inside the cavity 4002 and drives the attached metering roller 4005 to rotate. The axis of the metering roller 4005 is perpendicular to the plane of the angle disk 300.

[0060] More preferably, a conical cylinder 4006 is concentrically provided on the end face of the metering roller 4005, a roller 4007 is attached to the outer wall of the conical cylinder 4006, and a guide post 4008 is slidably provided at the center of the roller 4007. The roller 4007 is slidably provided on the outer wall of the guide post 4008, and the roller 4007 drives the guide post 4008 to rotate synchronously when it rotates.

[0061] Furthermore, a universal joint 4009 is provided at the end of the guide column 4008, and a metering pump 4011 is provided at the other end of the universal joint 4009. A sealing cavity 4012 is symmetrically opened on the inner wall of the cavity 4002. A first pipeline 4013 is provided between the sealing cavity 4012 and the metering pump 4011. The brake column 4003 is slidably sealed on the inner wall of the sealing cavity 4012.

[0062] The metering pump 4011 is filled with hydraulic oil. When the metering pump 4011 is working, it drives the hydraulic oil to flow along the first pipeline 4013 to the sealing cavity 4012, and at the same time drives the brake column 4003 to slide outward along the sealing cavity 4012 and contact the angle plate 300 to achieve braking.

[0063] Even better, the conical cylinder 4006 is conical in shape and is coaxially arranged with the metering roller 4005, and the guide post 4008 is arranged parallel to the conical cylinder 4006. Therefore, when the roller 4007 slides along the axial direction of the guide post 4008, it can be guaranteed to always be in contact with the conical cylinder 4006 and rotate synchronously.

[0064] The brake column 4003 is installed in the sealing cavity 4012 by interference fit. When the hydraulic oil pressure in the sealing cavity 4012 increases, the brake column 4003 is pushed outward until it contacts the outer wall of the angle disk 300 and the angle disk 300 stops rotating by friction.

[0065] More preferably, in other embodiments, the metering pump 4011 and hydraulic oil can also be replaced by conventional technologies such as cylinders, where compressed gas causes the brake column 4003 to slide outward when the guide column 4008 rotates, thereby achieving braking.

[0066] Furthermore, inclined brackets 4014 are fixedly provided on the outer walls of both sides of the roller 4007, and a movable rod 4015 is vertically slidably provided on the inclined bracket 4014. A rack 4016 is vertically provided on the end face of the movable rod 4015, and a first elastic element 4027 is provided between the rack 4016 and the inclined bracket 4014.

[0067] The inclined bracket 4014 is a parallelogram shape with three sides. The two sides are parallel to the rollers 4007, and the middle side is parallel to the rack 4016. The movable rod 4015 slides through the inclined bracket 4014 and drives it and the rollers 4007 to slide on the guide post 4008.

[0068] More preferably, the brake pins 4003 are symmetrically arranged about the angle disc 300, and two racks 4016 are symmetrically arranged in the center, which respectively control the two brake pins 4003, so that frictional deceleration and limiting fixation are performed simultaneously on the upper and lower sides of the angle disc 300.

[0069] Among them, two racks 4016 are symmetrically arranged, and a gear 4017 is rotatably arranged inside the limiting cylinder 4001. The gear 4017 meshes with both racks 4016 at the same time. When the gear 4017 rotates, it drives the two racks 4016 to slide in opposite directions.

[0070] More preferably, the gear 4017 is rotatably provided with an adjusting rod 4018, and the adjusting rod 4018 is provided with an adjusting wheel 4019 at one end that rotatably passes through the conical cylinder 4006.

[0071] The adjustment wheel 4019 has a linear relationship with the rotation angle of the angle disk 300. In actual processing, a gear 4017 with a suitable diameter is selected according to the accuracy requirements to achieve angle adjustment with different precision.

[0072] In summary, during use, the drive motor drives the rotating base to rotate. At this time, the limiting cylinder 4001 and the angle disk 300 rotate relative to each other. Simultaneously, the metering roller 4005, which is in contact with the angle disk 300, rotates, driving the connected conical cylinder 4006 to rotate. At this time, the roller 4007, which is in contact with the conical cylinder 4006, drives the guide column 4008 to rotate synchronously. Finally, through the universal joint 4009, the input end of the metering pump 4011 is started to rotate, driving the hydraulic oil along the first pipeline 4013 to push the brake column 4003 outward. Friction deceleration and limiting fixation are performed on the upper and lower sides of the angle disk 300, realizing rapid braking and fixed limiting, and preventing the tool from loosening during processing and affecting the processing angle.

[0073] Meanwhile, the above-mentioned technical solution can only brake and fix at a fixed angle. When a special rotation angle needs to be set, the adjusting wheel 4019 is rotated, which drives the gear 4017 to rotate. At the same time, the rack 4016 moves towards the smaller diameter end of the conical cylinder 4006. The tilting bracket 4014 drives the roller 4007 to move along the surface of the conical cylinder 4006 towards the smaller diameter end. Thus, when the metering roller 4005 rolls at the same angle, the rotation angle of the roller 4007 is smaller than before. Therefore, the metering roller 4005 needs to rotate a larger angle value relative to the angle disk 300 so that the roller 4007 and the guide column 4008 can rotate until the brake column 4003 is fully pushed out and fits against the angle disk 300. This increases the set angle value of the angle disk 300 to the angle value required for processing, achieving precise angle adjustment. The linkage drive motor realizes mechanical + electrical interlocking, making the final angle adjustment more accurate and meeting the needs of high-precision machining of universal boring and milling.

[0074] Example 3

[0075] Reference Figures 1-8 This is the third embodiment of the present invention. This embodiment is based on the previous embodiment. The difference is that the angle plate 300 is prevented from rotating by the limiting post 3002, and the angle plate 300 is cooled by the check cavity 3003. At the same time, negative pressure is generated for multiple limiting and fixing to prevent the angle plate 300 from deviating due to vibration during the boring and milling process.

[0076] Specifically, the angle disk 300 is coaxially fixed with a serrated groove 3001 on its end face, and a limiting post 3002 is slidably provided in the cavity 4002. A second elastic element is provided between the limiting post 3002 and the inner wall of the cavity 4002. The second elastic element is used to push the limiting post 3002 to slide into the serrated groove 3001. The limiting post 3002 includes a vertical surface and an inclined surface.

[0077] The serrated groove 3001 is a rectangular groove distributed in a circumferential array. The vertical surface engages with the serrated groove 3001 for limiting. When the inclined surface contacts the edge of the serrated groove 3001, it slides relative to the limiting post 3002 and pushes it inward against the thrust of the second elastic element, thereby allowing the angle disk 300 to continue rotating. This ultimately prevents the angle disk 300 from rotating in the opposite direction and prevents the angle disk 300 from moving due to vibration during the processing.

[0078] The sealing cavity 4012 is further provided with a check cavity 3003, and the outer wall of the brake column 4003 is provided with a safety disc, which divides the check cavity 3003 into upper and lower sealing cavities.

[0079] Preferably, the cavity away from the angle disc 300 is connected to the hydraulic oil line, so that when the hydraulic oil fills the upper cavity, it pushes the safety disc and brake column 4003 down. At the same time, the end of the brake column 4003 near the angle disc 300 is sealed and fitted with the inner wall of the sealing cavity 4012, preventing air from entering.

[0080] Furthermore, a flared opening 3004 is provided on the cavity 4002, and a sealing ball 3005 is movably disposed inside the flared opening 3004. A floating column 3006 is provided on the outer wall of the sealing ball 3005, and the floating column 3006 is slidably disposed inside the flared opening 3004 along its axial direction. A third elastic element 3007 is provided between the sealing ball 3005 and the flared opening 3004.

[0081] More preferably, a universal ball bearing 3008 is fitted at one end of the floating column 3006 away from the sealing ball 3005, and an inclined step 3009 is provided on the circumferential array of the safety disc, and the universal ball bearing 3008 rolls freely in contact with the inclined step 3009.

[0082] The third elastic element 3007 is a spring that constantly pushes the sealing ball 3005 to adhere to and seal the surface of the flared mouth 3004. During operation, after all the gas is squeezed out, a negative pressure is formed inside. The brake column 4003 needs to overcome the negative pressure to rebound, thus achieving multiple locking of the brake column 4003 and preventing the fixing of the angle plate 300 from failing. As the universal ball 3008 rolls on the inclined step 3009, the floating column 3006 is forced to slide downward, releasing the seal on the sealing ball 3005.

[0083] The lower cavity of the check chamber 3003 is filled with cold air. When the brake column 4003 slides outward, the cold air is also slowly squeezed out simultaneously to cool the angle disc 300, improve the braking effect, prevent the angle disc 300 from overheating and causing the braking to be untimely, and prevent deviation from the set angle value, thus ensuring the accuracy of the set angle value.

[0084] It is important to note that the constructions and arrangements of this application shown in several different exemplary embodiments are merely illustrative. Although only a few embodiments are described in detail in this disclosure, those who consult this disclosure will readily understand that many modifications are possible (e.g., changes in the size, dimensions, structure, shape, and proportions of various elements, as well as parameter values ​​(e.g., temperature, pressure, etc.), mounting arrangements, use of materials, color, orientation, etc.) without substantially departing from the novel teachings and advantages of the subject matter described in this application). For example, an element shown as integrally formed may be composed of multiple parts or elements, the position of elements may be inverted or otherwise altered, and the nature or number or position of discrete elements may be changed or altered. Therefore, all such modifications are intended to be included within the scope of the invention. The order or sequence of any process or method steps may be changed or rearranged according to alternative embodiments. In the claims, any "device plus function" clause is intended to cover the structure described herein that performs the function, and not only structurally equivalent but also equivalent in structure. Other substitutions, modifications, alterations, and omissions may be made in the design, operation, and arrangement of the exemplary embodiments without departing from the scope of the invention. Therefore, the present invention is not limited to the specific embodiments, but extends to various modifications that still fall within the scope of the appended claims.

[0085] Furthermore, in order to provide a concise description of exemplary embodiments, not all features of actual embodiments (i.e., those features that are not relevant to the best mode of carrying out the invention as currently considered, or those features that are not relevant to implementing the invention) may be omitted.

[0086] It should be understood that numerous specific implementation decisions can be made during the development of any practical implementation, such as in any engineering or design project. Such development efforts may be complex and time-consuming, but for those skilled in the art who benefit from this disclosure, the development effort will be a routine work of design, manufacturing, and production without requiring much experimentation.

[0087] 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 universal boring-milling head device assembly, characterized by, The utility model provides a kind of rotating tool head (100), the rotating tool head (100) upper end rotation sleeve is equipped with first rotating base (101), the first rotating base (101) upper end rotation is equipped with second rotating base (102), and angle head (103) is equipped on the second rotating base (102);Bevel gear box (200), tool is equipped in the rotating tool head (100), and the bevel gear box (200) is used to drive the tool rotation and carry out mechanical processing;Dial (300), magnetic grid angle encoder is equipped on the dial (300), for control rotation angle and carry out brake;Brake assembly (400), the brake assembly (400) is movably attached to the outer wall of the dial (300), and the brake assembly (400) is used to be attached to the outer wall of the dial (300) after rotating to set angle value, and it is fixed to limit;The brake assembly (400) includes limiting cylinder (4001), the outer wall of the limiting cylinder (4001) is opened with cavity (4002), the edge of the dial (300) is rotationally arranged in the cavity (4002), and the inner wall of the cavity (4002) is symmetrically slidably provided with brake column (4003);The cavity (4002) is also opened with rotation cavity (4004), and the rotation cavity (4004) is rotationally provided with metering roller (4005), the outer wall of the metering roller (4005) is attached to the outer wall of the dial (300) and synchronously rotates with it;The end face of the metering roller (4005) is concentrically provided with conical cylinder (4006), the outer wall of the conical cylinder (4006) is attached to be provided with roller (4007), the center of the roller (4007) is slidably provided with guide column (4008), the roller (4007) is slidably arranged on the outer wall of the guide column (4008), and the roller (4007) rotates to drive the guide column (4008) to rotate synchronously;The distal end of the guide column (4008) is provided with universal joint (4009), the other end of the universal joint (4009) is provided with metering pump (4011), the inner wall of the cavity (4002) is symmetrically provided with sealing cavity (4012), the sealing cavity (4012) and the metering pump (4011) are communicated with first pipeline (4013), and the brake column (4003) is slidably sealed in the inner wall of the sealing cavity (4012);The outer wall of the roller (4007) on both sides is fixedly provided with inclined support (4014), the inclined support (4014) is vertically slidably provided with movable rod (4015), the end face of the movable rod (4015) is vertically provided with rack (4016), and the first elastic member (4027) is arranged between the rack (4016) and the inclined support (4014);The rack (4016) is symmetrically provided with two, and the gear (4017) is further rotationally arranged in the limiting cylinder (4001), the gear (4017) is simultaneously meshed with two rack (4016), and the gear (4017) rotates to drive two rack (4016) to slide in opposite directions. ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ The gear (4017) is coaxially provided with an adjusting rod (4018), and one end of the adjusting rod (4018) penetrating through the conical barrel (4006) is provided with an adjusting wheel (4019).

2. The universal boring-milling head assembly of claim 1, wherein: The first rotating base (101) is further provided with a first driving motor, and the second rotating base (102) is further provided with a second driving motor. The first driving motor is used for driving the rotating cutter head (100) to swing and adjust the angle, and the second driving motor is used for driving the first rotating base (101) to horizontally rotate and adjust the angle relative to the second rotating base (102).

3. The universal boring-milling head assembly of claim 2, wherein: The angle disc (300) is coaxially fixed with a sawtooth groove (3001) at the end face, the cavity (4002) is further slidably provided with a limiting column (3002), a second elastic member is arranged between the limiting column (3002) and the inner wall of the cavity (4002), and the second elastic member is used for slidingly embedding the limiting column (3002) into the sawtooth groove (3001), the limiting column (3002) comprises a vertical surface and an inclined surface.

4. The universal boring-milling head assembly of claim 3, wherein: The sealing cavity (4012) is further provided with a check cavity (3003), and the outer wall of the brake column (4003) is provided with a safety disc, which divides the check cavity (3003) into two sealing cavities in upper and lower positions. The cavity (4002) is provided with a horn mouth (3004), the horn mouth (3004) is movably provided with a sealing ball (3005), the outer wall of the sealing ball (3005) is provided with a floating column (3006), the floating column (3006) is slidably arranged in the horn mouth (3004) along the axial direction, and a third elastic member (3007) is arranged between the sealing ball (3005) and the horn mouth (3004). The floating column (3006) is provided with a universal ball (3008) at the end away from the sealing ball (3005), the safety disc is circumferentially provided with an inclined step (3009), and the universal ball (3008) is freely rolled against the inclined step (3009).

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