A fitting milling device

Abstract

A kind of accessory milling device, the accessory processing technical field, including cabinet, further include: rotating shaft, processing platform, connecting arm, hollow ring body, protruding block, first inclined plane, moving plate, positioning block and second inclined plane, rotating shaft is rotationally arranged in the middle part of the upper surface of cabinet along vertical direction;Processing platform is fixedly installed on the top end of rotating shaft, and accessory is positioned on processing platform.This scheme adopts the circumferential rotation mode of hollow ring body driving connecting arm and processing platform, avoids motor start-stop loss from the transmission principle, significantly improves the durability of transmission component;Temporary locking mode triggers the friction brake of protruding block and positioning block by hand lever, completes the position locking after angle adjustment, ensures the stability of accessory position during milling process, guarantees accessory milling precision;Complete locking mode realizes accurate locking after angle adjustment by the positioning of plug rod and socket, further improves the stability during accessory processing process.

Description

Technical Field

[0001] This utility model belongs to the field of parts processing technology, specifically relating to a parts milling processing device. Background Technology

[0002] Metal milling is a process that uses a rotary milling cutter to cut metal workpieces. By cutting the metal along a predetermined path, the milling cutter can process various structures such as planes, grooves, and curved surfaces. It is widely used in fields such as machinery manufacturing and aerospace, and can meet the complex processing needs of different metal parts.

[0003] In related technology (Chinese patent with announcement number CN222370908U), a milling device for machining mechanical parts is disclosed, including a support table. A rotary motor is mounted on the bottom of the support table via a base. The transmission end of the rotary motor passes through the support table and is connected to a fixed jaw frame at the top of the support table. A horizontal sliding rail is welded to the top of the fixed jaw frame. A clamping and fixing base plate is slidably embedded in the inner side of the horizontal sliding rail via a slider. An adjusting screw is embedded through the middle of the clamping and fixing base plate. This solution, by installing a horizontal sliding mechanism at the top of the rotary mechanism, enables the workpiece clamping mechanism to have two adjustment functions. The displacement movement of the two is controlled by a cylinder and a motor, making the machining process digital, enabling more efficient automatic operation, and eliminating machining errors. It achieves high efficiency in machining multiple parts of a single part. Compared with the prior art, it has the function of adjusting the workpiece position without removing the workpiece.

[0004] The above solution uses a rotary motor to drive the parts to achieve multi-position milling. This requires frequent starting and stopping of the motor output to keep the parts stationary to complete the milling. This process leads to increased wear on key components such as motor brushes and bearings, significantly shortening the motor's lifespan. In addition, due to the starting inertia and braking delay during the frequent start-stop process, it is difficult to ensure that the parts are in the machining position each time they stop. The motor output angle needs to be repeatedly adjusted to correct the machining position deviation, resulting in reduced machining efficiency. Utility Model Content

[0005] To address the problems of existing technologies that use rotary motors to drive parts for multi-position milling, which require frequent starting and stopping of the motor output to keep the parts stationary for milling, leading to accelerated wear of key components such as motor brushes and bearings and significantly shortening the motor's lifespan, this invention provides a part milling device. This device eliminates the traditional method of changing the machining angle of parts by driving a machining platform with a motor. Instead, a hollow ring body drives the connecting arm and machining platform to rotate clockwise circumferentially, adjusting the machining angle of the part positioned on the platform. This design avoids the start-stop losses of traditional motor drives from the perspective of transmission principles, significantly improving the durability of transmission components and enabling multi-angle machining control of parts, effectively meeting the multi-station switching requirements of complex curved surface milling. The specific technical solution is as follows:

[0006] A milling apparatus for parts includes a chassis, and further includes: a rotating shaft, a machining platform, connecting arms, a hollow ring, a protrusion, a first inclined surface, a moving plate, a positioning block, and a second inclined surface. The rotating shaft is rotatably mounted on the upper surface of the chassis in a vertical direction. The machining platform is fixedly mounted on the top of the rotating shaft, and the part is positioned on the machining platform. Multiple connecting arms are provided and are equidistantly arranged on the side wall of the rotating shaft in a circumferential direction. The hollow ring is mounted on the outer side of the multiple connecting arms and is located on the same vertical axis as the center of the rotating shaft. In a straight line; multiple protrusions are provided and are equidistantly arranged on the circumference of the hollow ring sidewall, with one sidewall of each protrusion perpendicular to the circumferential sidewall of the hollow ring; the first inclined surface is inclinedly arranged on the other sidewall of the protrusion; the moving plate is movable on the chassis in the front-back direction; the positioning block is fixedly installed on the rear sidewall of the moving plate and slidably embedded in the space between two protrusions; the second inclined surface is inclinedly arranged on the sidewall of the positioning block and is positioned corresponding to the first inclined surface.

[0007] The above technical solution also includes: a fixed plate and an elastic element, wherein the fixed plate is fixedly and vertically installed on the chassis; and the elastic element is fixedly and vertically installed between the fixed plate and the movable plate.

[0008] The above technical solution also includes: a socket and a rod. The socket is provided in multiple ways and is equidistantly opened on the circumferential sidewall of the hollow ring body. The multiple sockets are respectively opened in the space between two adjacent protrusions. The rod slides through the outer wall of the fixed plate. The rod is divided into a long end and a short end. The long end of the rod passes through the moving plate and the positioning block to the rear and is embedded in the cavity of one of the sockets.

[0009] In the above technical solution, the upper surface of the hollow ring is provided with multiple handles, and the spacing between two adjacent handles is the same.

[0010] In the above technical solution, a positioning fixture is provided at the top of the processing platform. The positioning fixture includes: a sliding groove, a first positioning piece, a first groove, a first positioning bolt, and a first positioning nut. Multiple sliding grooves are provided and are respectively opened on the upper surface of the processing platform. Two first positioning pieces are provided. The first groove is opened through the first positioning piece. The first positioning bolt is slidably embedded in the sliding groove and the inner cavity of the first groove. The first positioning nut is threaded onto the first positioning bolt.

[0011] In the above technical solution, the cross-sectional shape of the first positioning bolt is set to T-shape, and the bottom cross-section of the first positioning bolt is adapted to the shape and size of the inner cavity of the slide groove.

[0012] In the above technical solution, the positioning fixture further includes: a second positioning piece, a second groove, a second positioning bolt, a second positioning nut, and a fixture seat. The second positioning piece is fixedly and vertically installed on the side wall of the first positioning piece. The second groove is formed through the second positioning piece. The second positioning bolt passes through the inner cavity of the second groove. Two second positioning nuts are provided, and the two second positioning nuts are respectively threaded onto the second positioning bolt, and the two second positioning nuts are respectively located on both sides of the second positioning piece. The fixture seat is fixedly installed on the end of the second positioning bolt.

[0013] In the above technical solution, the positioning fixture further includes: an extension arm, a third positioning bolt, and a third positioning nut. The extension arm is fixedly installed on the fixture seat. The third positioning bolt is threaded through the extension arm in the vertical direction. There are two third positioning nuts, which are threaded onto the third positioning bolt and located on both sides of the third positioning bolt.

[0014] The above technical solution also includes a milling assembly, which includes a frame, a cylinder, a motor, and a milling cutter. The frame is fixedly installed on the rear side wall of the chassis; the cylinder is installed on the top of the frame; the motor is installed at the output end of the cylinder; and the milling cutter is connected to the output end of the motor.

[0015] The advantages of this utility model's accessory milling processing device compared to the prior art are as follows:

[0016] I. Addressing the issue that existing multi-position milling methods using rotary motors to drive components require frequent starting and stopping of the motor output to bring the components to a standstill for milling, leading to accelerated wear on critical components such as motor brushes and bearings and significantly shortening motor lifespan, this solution abandons the traditional method of changing the machining angle of components by driving a machining platform. Instead, it uses a hollow ring to drive the connecting arm and machining platform to achieve clockwise circumferential rotation, adjusting the machining angle of the components positioned on the platform. This design avoids the start-stop losses of traditional motor drives from the perspective of transmission principles, significantly improving the durability of transmission components and enabling control of multi-angle machining of components, effectively meeting the multi-station switching requirements of complex curved surface milling.

[0017] II. In this utility model, a temporary locking function is provided after the machining platform is rotated and adjusted. The hand lever is rotated counterclockwise to trigger the braking mechanism of the protrusion and the positioning block to complete the position locking after the angle adjustment. This is suitable for frequent milling adjustment of parts at multiple angles to ensure the stability of the part position during the milling process and to ensure the milling accuracy of the parts.

[0018] Third, this solution also includes a precise locking function for the machining platform after the angle is adjusted. By inserting a rod through the moving plate and into the corresponding hole cavity, the position of the hollow ring after the angle is adjusted can be locked, thereby locking the position of the machining platform and the parts on the machining platform. In this state, the stability of the parts milling process can be accurately guaranteed.

[0019] IV. In this solution, the braking of the machining platform after angle adjustment is divided into two modes: temporary locking and complete locking. The temporary locking mode is suitable for frequent milling adjustments of parts at multiple angles; the complete locking mode is more suitable for detailed milling of parts at a certain angle over a long period of time. The above two modes can be switched according to the accuracy requirements. The temporary locking mode is used in the roughing stage, and the complete locking mode is switched when entering the finishing stage to achieve the optimal balance between processing efficiency and accuracy, making the equipment more flexible to use.

[0020] V. To address the positioning deviation problem caused by start-stop inertia and braking delay in traditional motor drive systems, this solution involves evenly distributing multiple protrusions along the circumference of the hollow ring. These, along with positioning blocks and insert rods, form a mechanical limit locking mechanism. Once the hollow ring has completed its angle adjustment, a rigid lock is formed between adjacent protrusions, effectively eliminating the accumulation of dynamic errors in the motor drive. This design avoids the drawback of traditional motor drives requiring multiple position corrections, enabling the machining platform to quickly and accurately reach the machining station after rotational adjustment. Compared to traditional solutions, this improves machining efficiency and significantly optimizes the milling process for parts.

[0021] In summary, this solution employs a hollow ring body to drive the circumferential rotation of the connecting arm and machining platform. This avoids motor start-stop losses from the perspective of transmission principle, significantly improves the durability of transmission components, and enables control of multi-angle machining of parts, meeting the multi-station switching requirements of complex curved surface milling. The temporary locking mode uses a hand lever to trigger the friction braking between the protrusion and the positioning block to lock the position after angle adjustment, ensuring the stability of the part's position during milling and guaranteeing the milling accuracy of the parts. The complete locking mode uses the positioning of the insertion rod and the insertion hole to achieve precise locking after angle adjustment, further improving the stability of the parts during machining. The dual modes can be automatically switched according to machining needs. The temporary locking mode is used in the roughing stage, and the complete locking mode is used in the finishing stage, achieving the optimal balance between machining efficiency and accuracy, making the equipment more flexible to use. The mechanical limit locking mechanism eliminates the accumulation of dynamic errors caused by motor drive by evenly distributing protrusions around the circumference of the hollow ring body, in conjunction with the positioning block and the insertion rod, avoiding the drawbacks of traditional motor drive requiring multiple position corrections and optimizing the parts milling process. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the structure of the chassis of this utility model;

[0023] Figure 2 This is a schematic diagram of the structure of the handle of this utility model;

[0024] Figure 3 This is an exploded view of the processing platform and rotating shaft of this utility model in a separated state;

[0025] Figure 4 This is a schematic diagram of the hollow ring structure of this utility model;

[0026] Figure 5 This is a schematic diagram of the structure of the first positioning piece of this utility model;

[0027] Figures 1 to 5 In the middle, 1. chassis, 2. shaft, 3. machining platform, 4. connecting arm, 5. hollow ring, 6. protrusion, 7. first inclined surface, 8. insertion hole, 9. fixing plate, 10. elastic element, 11. moving plate, 12. positioning block, 13. second inclined surface, 14. insertion rod, 15. hand lever, 16. slide groove, 17. first positioning piece, 18. first groove, 19. first positioning bolt, 20. first positioning nut, 21. second positioning piece, 22. second groove, 23. second positioning bolt, 24. second positioning nut, 25. clamp seat, 26. extension arm, 27. third positioning bolt, 28. third positioning nut, 29. frame, 30. cylinder, 31. motor, 32. milling cutter. Detailed Implementation

[0028] The following are specific implementation cases and appendices. Figures 1 to 5The present invention will be further described below, but the present invention is not limited to these embodiments.

[0029] Main references Figures 1 to 3 As shown, a milling device for parts includes a housing 1, and further includes: a rotating shaft 2, a machining platform 3, connecting arms 4, a hollow ring 5, a protrusion 6, a first inclined surface 7, a moving plate 11, a positioning block 12, and a second inclined surface 13. The rotating shaft 2 is rotatably mounted on the upper surface of the housing 1 via bearings in the vertical direction; the machining platform 3 is fixedly installed on the top of the rotating shaft 2, and the parts are positioned on the machining platform 3; multiple connecting arms 4 are provided and are equidistantly arranged on the side wall of the rotating shaft 2 in the circumferential direction; the hollow ring 5 is installed on the outside of the multiple connecting arms 4 and is connected to the rotating shaft. 2. The center is located on the same vertical line; multiple protrusions 6 are provided and are equidistantly arranged on the circumference of the side wall of the hollow ring body 5, and one side wall of each protrusion 6 is perpendicular to the circumferential side wall of the hollow ring body 5; the first inclined surface 7 is inclinedly arranged on the other side wall of the protrusion 6; the movable plate 11 is movable on the chassis 1 in the front-back direction; the positioning block 12 is fixedly installed on the rear side wall of the movable plate 11 and is slidably embedded in the space between the two protrusions 6; the second inclined surface 13 is inclinedly arranged on the side wall of the positioning block 12 and is arranged corresponding to the position of the first inclined surface 7. This solution also includes: a fixed plate 9 and an elastic element 10. The fixed plate 9 is fixed and vertically installed on the chassis 1; the elastic element 10 is fixed and vertically installed between the fixed plate 9 and the movable plate 11; the elastic element 10 is a commonly used elastic element on the market, which consists of a spring and a telescopic rod. The spring is sleeved on the outside of the telescopic rod, which is a commonly used telescopic rod on the market, consisting of two interlocking rod sections. Under the action of external force, the total length of the telescopic rod can be changed, and under the action of external force, the elastic element 10 can be compressed or stretched, and reset by means of the spring of the elastic element 10. This is existing technology, which can meet the usage requirements. The model of the above-mentioned existing components will not be limited or described in detail.

[0030] When the hollow ring 5, carrying multiple protrusions 6, rotates clockwise synchronously, the rotation of the protrusions 6 first pushes the first inclined surface 7, which in turn drives the second inclined surface 13 and the positioning block 12 to move forward, causing the elastic element 10 to be compressed and shortened. After the protrusions 6 have rotated one unit distance, the positioning block 12 aligns with the gap of the next set of adjacent protrusions 6. At this time, the elastic force of the elastic element 10 drives the moving plate 11, the positioning block 12, and the second inclined surface 13 to move backward synchronously, so that the positioning block 12 is engaged in the current gap of the protrusions 6, thereby driving the hollow ring 5, the connecting arm 4, the rotating shaft 2, the processing platform 3, and the top accessory of the processing platform 3 to rotate clockwise synchronously one unit distance.

[0031] Main references Figure 3 As shown, a plurality of levers 15 are provided on the upper surface of the hollow ring 5, and the spacing between two adjacent levers 15 is the same.

[0032] By manually applying a counterclockwise force to the lever 15, the right-angled edge of the protrusion 6 on the left side of the positioning block 12 forms a tight abutment with the left side wall of the positioning block 12, thus constructing a mechanical limiting structure. This structure can effectively lock the spatial position of the lever 15, hollow ring 5, connecting arm 4, rotating shaft 2, machining platform 3, and the top accessory of machining platform 3, providing a stable machining reference for the milling assembly and enabling milling operations at the current angle. If it is necessary to switch to other machining angles, simply drive the lever 15 to rotate clockwise to release the limiting and move the workpiece to the next station, meeting the needs of continuous multi-angle machining of accessories and achieving efficient and flexible milling process switching.

[0033] This solution also includes: a socket 8 and a plug rod 14. Multiple sockets 8 are provided and are equidistantly opened on the circumferential sidewall of the hollow ring body 5. The multiple sockets 8 are respectively opened in the space between two adjacent protrusions 6. The plug rod 14 slides through the outer wall of the fixing plate 9. The plug rod 14 is divided into a long end and a short end. The long end of the plug rod 14 passes through the moving plate 11 and the positioning block 12 to the rear and is embedded in the inner cavity of one of the sockets 8.

[0034] When precision machining of a specific angle of a component is required, a complete locking operation must be performed: After adjusting the angles of the hollow ring 5, connecting arm 4, rotating shaft 2, machining platform 3, and the component, insert the insertion rod 14 backward, allowing it to pass through the moving plate 11 and positioning block 12 in sequence, ultimately engaging with the corresponding insertion hole 8. At this point, the insertion rod 14 forms a mechanical limiting structure, completely locking the hollow ring 5 so that it cannot rotate, thereby ensuring that the connecting arm 4, rotating shaft 2, machining platform 3, and the component are in a rigid and stable state, providing a reliable positioning reference for high-precision machining.

[0035] Main references Figure 2 and Figure 5As shown, a positioning fixture is provided at the top of the processing platform 3. The positioning fixture includes: a sliding groove 16, a first positioning piece 17, a first groove 18, a first positioning bolt 19, and a first positioning nut 20. Multiple sliding grooves 16 are provided, each located on the upper surface of the processing platform 3. Two first positioning pieces 17 are provided. The first groove 18 extends through the first positioning piece 17. The first positioning bolt 19 is slidably embedded in the inner cavity of the sliding groove 16 and the first groove 18. The first positioning nut 20 is threaded onto the first positioning bolt 19. By moving the first positioning bolt 19 along the inner cavity of the first groove 18, the width of the fixture seat 25 relative to the processing platform 3 can be adjusted, and the adjusted first positioning bolt 19 is locked in place at the first groove 18 by the first positioning nut 20. Specifically, the cross-sectional shape of the first positioning bolt 19 is set to T-shape, and the bottom section of the first positioning bolt 19 is adapted to the shape and size of the inner cavity of the slide groove 16. This ensures that after the first positioning bolt 19 is slidably embedded in the inner cavity of the slide groove 16, the first positioning nut 20 limits the thread on the top of the first positioning bolt 19. With the shape setting of the bottom of the first positioning bolt 19, the locking and limiting of the first positioning bolt 19 in the inner cavity of the slide groove 16 can be achieved.

[0036] Main references Figure 5 As shown, the positioning fixture also includes: a second positioning piece 21, a second groove 22, a second positioning bolt 23, a second positioning nut 24, and a fixture seat 25. The second positioning piece 21 is fixed and vertically installed on the side wall of the first positioning piece 17; the second groove 22 is opened through the second positioning piece 21; the second positioning bolt 23 passes through the inner cavity of the second groove 22; there are two second positioning nuts 24, which are threaded onto the second positioning bolt 23 respectively, and the two second positioning nuts 24 are located on both sides of the second positioning piece 21; the fixture seat 25 is fixedly installed on the end of the second positioning bolt 23. By adjusting the second positioning bolt 23 along the inner cavity of the second groove 22, the height of the fixture seat 25 can be adjusted, ensuring that the accessories in the inner cavities of the two fixture seats 25 have sufficient operating space from the upper surface of the processing platform 3, allowing the accessories to perform milling operations such as through holes. The second positioning bolt 23 and the second groove 22 are locked together by the two second positioning nuts 24 to achieve stability of the position of the fixture seat 25 after the height is adjusted.

[0037] Main references Figure 5As shown, the positioning fixture also includes: an extension arm 26, a third positioning bolt 27, and a third positioning nut 28. The extension arm 26 is fixedly mounted on the fixture base 25. The third positioning bolt 27 is threaded through the extension arm 26 in the vertical direction. There are two third positioning nuts 28, which are threaded onto the third positioning bolt 27 and located on opposite sides of the bolt 27. The workpiece to be processed is placed in the inner cavity of the two fixture bases 25. By rotating the third positioning bolt 27 relative to the extension arm 26, the bottom end of the third positioning bolt 27 presses the upper surface of the workpiece into position. Then, the two third positioning nuts 28 are rotated to fit against the upper and lower surfaces of the extension arm 26, respectively, thus locking the workpiece in the inner cavity of the two fixture bases 25.

[0038] Main references Figure 1 As shown, the system also includes a milling assembly, which comprises a frame 29, a cylinder 30, a motor 31, and a milling cutter 32. The frame 29 is fixedly mounted on the rear side wall of the housing 1; the cylinder 30 is mounted on the top of the frame 29; the motor 31 is mounted on the output end of the cylinder 30; and the milling cutter 32 is connected to the output end of the motor 31. The milling depth of the milling cutter 32 is adjusted by the cylinder 30, and the rotation of the milling cutter 32 is driven by the motor 31. By adjusting the position of the positioning fixture in this solution, the machining position of the part corresponds to the milling cutter 32. Existing technology is used here to meet the milling requirements of the part, and no further details or limitations are provided. The cylinder 30 used in this application is a commonly used self-locking cylinder on the market. Its output end can stop at any position and be locked. Any commonly used model of cylinder 30 can be used, and will not be described or limited here. The motor 31 is a commonly used self-locking motor on the market with a lockable output end. When it stops, its output end can be self-locked and will not rotate under external force. The motor 31 is a commonly used forward and reverse motor on the market. Its output end can rotate in the forward or reverse direction according to the usage requirements. It can meet the above usage requirements. The milling cutter 32 is a commonly used machining milling cutter on the market. Different models and shapes are selected according to different processing requirements of the parts. Any commonly used model on the market can be used, and will not be described or limited here. The cylinder 30, motor 31, and milling cutter 32 are all existing technologies. The cooperation of the three realizes the milling processing of the parts by the milling cutter 32. This is existing technology. The specific operation process is also existing technology. Any commonly used milling tool and drive system for parts can be used, and will not be described or limited here.

[0039] Additionally, it is worth noting that the first positioning bolt 19, the second positioning bolt 23, and the third positioning bolt 27 are all commercially available general-purpose bolts. They can be of a model adapted to their respective application environments. Similarly, the first positioning nut 20, the second positioning nut 24, and the third positioning nut 28 are also commercially available general-purpose nuts. They can be of a model adapted to their respective application environments and can be adapted to the first positioning bolt 19, the second positioning bolt 23, and the third positioning bolt 27. The cooperation of the above components can lock the positions of the first positioning bolt 19, the second positioning bolt 23, and the third positioning bolt 27. This is existing technology and will not be elaborated or limited here.

[0040] The working principle of the accessory milling device in this embodiment is as follows:

[0041] The positions of the two fixture seats 25 are adjusted in advance according to the size of the parts: by moving the first positioning bolt 19 along the inner cavity of the first groove 18, the width of the fixture seat 25 relative to the processing platform 3 can be adjusted, and the adjusted first positioning bolt 19 is locked in the first groove 18 by the first positioning nut 20; by adjusting the second positioning bolt 23 along the inner cavity of the second groove 22, the height of the fixture seat 25 can be adjusted, so that the parts in the inner cavity of the two fixture seats 25 are left with sufficient operating space from the upper surface of the processing platform 3 for the parts to perform milling operations such as through holes, and the second positioning bolt 23 and the second groove 22 are locked together by the two second positioning nuts 24 to achieve the stability of the position of the fixture seat 25 after the height adjustment;

[0042] The workpiece to be processed is placed in the inner cavity of the two clamp seats 25. The third positioning bolt 27 is rotated relative to the extension arm 26, causing the bottom end of the third positioning bolt 27 to press and position the upper surface of the workpiece. Then, the two third positioning nuts 28 are rotated to fit the upper and lower surfaces of the extension arm 26 respectively, thereby achieving the positioning and locking of the workpiece in the inner cavity of the two clamp seats 25.

[0043] If the positioned parts need to be processed in multiple circumferential angles, the drive lever 15 drives the hollow ring 5 and multiple protrusions 6 to rotate clockwise synchronously. During the clockwise rotation of the protrusions 6, the first inclined surface 7 drives the second inclined surface 13 and the positioning block 12 to move forward, and the elastic element 10 is forced to compress and shorten until the protrusions 6 rotate one unit distance. Then the positioning block 12 corresponds to the space between the next set of two adjacent protrusions 6. At this time, under the elastic force of the elastic element 10, the moving plate 11, the positioning block 12 and the second inclined surface 13 move backward synchronously, so that the positioning block 12 is inserted into the space between the two protrusions 6 at this time. Thus, the hollow ring 5, the connecting arm 4, the rotating shaft 2, the processing platform 3 and the parts positioned at the top of the processing platform 3 rotate clockwise one unit distance synchronously.

[0044] In the above state, by manually applying a counterclockwise pushing force to the lever 15, the right-angled edge of the protrusion 6 located on the left side of the positioning block 12 is forced to tightly abut against the left side wall of the positioning block 12. This achieves temporary stability of the lever 15, hollow ring 5, connecting arm 4, rotating shaft 2, machining platform 3, and the top part of the machining platform 3. This allows the milling assembly to be used to mill the part at that angle. If it is necessary to perform continuous machining of the part at other angles, the lever 15 is driven to rotate clockwise to achieve the purpose of continuous machining of the part at multiple angles.

[0045] In the above state, if it is necessary to perform fine machining on a certain angle of the part, the position of the part needs to be completely locked: After adjusting the angle of the hollow ring 5, the connecting arm 4, the rotating shaft 2, the machining platform 3 and the part on the machining platform 3, insert the insertion rod 14 to the rear side, so that it passes through the moving plate 11 and the positioning block 12, and finally inserts into the inner cavity of the corresponding insertion hole 8. In this state, the hollow ring 5 is locked by the insertion rod 14 and cannot continue to rotate. At this time, the connecting arm 4, the rotating shaft 2, the machining platform 3 and the part positioned on the machining platform 3 are in a completely stable state, and the part can be finely machined at that angle.

[0046] This solution employs a hollow ring 5 to drive the circumferential rotation of the connecting arm 4 and the machining platform 3. This avoids motor start-stop losses from a transmission principle perspective, significantly improving the durability of transmission components and enabling control of multi-angle machining of parts. It meets the multi-station switching requirements of complex curved surface milling. The temporary locking mode uses the lever 15 to trigger the friction braking between the protrusion 6 and the positioning block 12, locking the position after angle adjustment and ensuring the stability of the part's position during milling, thus guaranteeing milling accuracy. The complete locking mode uses the positioning of the insertion rod 14 and the insertion hole 8 to achieve precise locking after angle adjustment, further enhancing the stability of the part's machining process. The dual modes can be automatically switched according to machining needs. The temporary locking mode is used during roughing, while the complete locking mode is activated during finishing, achieving an optimal balance between machining efficiency and accuracy, making the equipment more flexible. The mechanical limit locking mechanism uses protrusions 6 evenly distributed around the circumference of the hollow ring 5, in conjunction with the positioning block 12 and the insertion rod 14, to eliminate the accumulation of dynamic errors caused by the motor drive, avoiding the drawbacks of traditional motor drives requiring multiple position corrections and optimizing the part milling process.

[0047] To provide a more detailed understanding of the features and technical content of the embodiments of this disclosure, the implementation of the embodiments of this disclosure will be described in detail below with reference to the accompanying drawings. The accompanying drawings are for illustrative purposes only and are not intended to limit the embodiments of this disclosure. In the following technical description, for ease of explanation, several details are used to provide a full understanding of the disclosed embodiments. However, one or more embodiments may still be implemented without these details. In other cases, well-known structures and devices may be simplified in their depiction to simplify the drawings.

[0048] The terms "first," "second," etc., used in the specification, claims, and accompanying drawings of this disclosure are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate for the embodiments of this disclosure described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion.

[0049] In this disclosure, the terms "upper," "lower," "inner," "middle," "outer," "front," and "rear," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are primarily for better description of the embodiments of this disclosure and their implementations, and are not intended to limit the indicated devices, elements, or components to having a specific orientation, or to require them to be constructed and operated in a specific orientation. Furthermore, some of the aforementioned terms may be used to indicate other meanings besides orientation or positional relationship; for example, the term "upper" may in some cases indicate a dependency or connection relationship. Those skilled in the art can understand the specific meaning of these terms in the embodiments of this disclosure according to the specific circumstances.

[0050] Furthermore, the terms "set up," "connect," and "fix" should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be an internal connection between two devices, components, or parts. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of this disclosure according to the specific circumstances.

[0051] Unless otherwise stated, the term "multiple" means two or more.

[0052] In this embodiment of the disclosure, the character " / " indicates that the objects before and after it are in an "or" relationship. For example, A / B means: A or B.

[0053] The term "and / or" describes the relationship between objects, indicating that there can be three relationships. For example, A and / or B means: A or B, or A and B.

[0054] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A fitting milling device comprising a machine case (1), characterized in that: Also includes: A rotating shaft (2) is rotatably disposed in the middle of the upper surface of the chassis (1) in a vertical direction; The processing platform (3) is fixedly installed on the top of the rotating shaft (2), and the accessory is positioned on the processing platform (3); Connecting arm (4), multiple connecting arms (4) are provided and are equidistantly arranged on the side wall of the rotating shaft (2) along the circumference; Hollow ring (5), the hollow ring (5) is installed on the outside of the plurality of connecting arms (4) and is located on the same vertical line as the center of the rotating shaft (2); The protrusions (6) are provided in multiple ways and are equidistantly arranged on the circumference of the side wall of the hollow ring body (5). One side wall of each protrusion (6) is perpendicular to the circumferential side wall of the hollow ring body (5). The first inclined surface (7) is inclinedly disposed on the other side wall of the protrusion (6); A movable plate (11) is mounted on the chassis (1) in a front-to-back direction; Positioning block (12), the positioning block (12) is fixedly installed on the rear side wall of the movable plate (11) and is slidably embedded in the space between the two protrusions (6); The second inclined surface (13) is inclinedly disposed on the side wall of the positioning block (12) and is disposed in a position corresponding to the first inclined surface (7).

2. The accessory milling apparatus according to claim 1, characterized in that: Also includes: A fixing plate (9) is fixed and vertically installed on the chassis (1); An elastic element (10) is fixed and vertically installed between the fixed plate (9) and the movable plate (11).

3. The accessory milling apparatus according to claim 2, characterized in that: Also includes: The socket (8) is provided in multiple ways and is equidistantly opened on the circumferential sidewall of the hollow ring (5) along the circumference, and the multiple sockets (8) are respectively opened in the space between two adjacent protrusions (6); Insert rod (14), the insert rod (14) slides through the outer wall of the fixing plate (9), the insert rod (14) is divided into a long end and a short end, the long end of the insert rod (14) passes through the moving plate (11) and the positioning block (12) to the rear and is embedded in the inner cavity of one of the insertion holes (8).

4. The accessory milling apparatus according to claim 1, characterized in that: The hollow ring (5) has multiple handles (15) on its upper surface, and the spacing between two adjacent handles (15) is the same.

5. The accessory milling apparatus according to claim 1, characterized in that: The top of the processing platform (3) is provided with a positioning fixture, which includes: Multiple slides (16) are provided and are respectively opened on the upper surface of the processing platform (3); The first positioning piece (17) is provided in two parts; The first groove (18) is formed through the first positioning piece (17); The first positioning bolt (19) is slidably embedded in the groove (16) and the inner cavity of the first groove (18); The first positioning nut (20) is threaded onto the first positioning bolt (19).

6. The accessory milling apparatus according to claim 5, characterized in that: The first positioning bolt (19) has a T-shaped cross-section, and the bottom section of the first positioning bolt (19) is adapted to the shape and size of the inner cavity of the groove (16).

7. The accessory milling apparatus according to claim 5, characterized in that: The positioning fixture also includes: The second positioning piece (21) is fixed and vertically installed on the side wall of the first positioning piece (17); The second groove (22) is formed through the second positioning piece (21); The second positioning bolt (23) penetrates the inner cavity of the second groove (22); There are two second positioning nuts (24), and the two second positioning nuts (24) are respectively threaded onto the second positioning bolt (23), and the two second positioning nuts (24) are respectively located on both sides of the second positioning piece (21); The clamp seat (25) is fixedly installed at the end of the second positioning bolt (23).

8. The accessory milling apparatus according to claim 7, characterized in that: The positioning fixture also includes: An extension arm (26) is fixedly mounted on the clamp seat (25); The third positioning bolt (27) is threaded through the extension arm (26) in the vertical direction. There are two third positioning nuts (28), which are threaded onto the third positioning bolt (27) and located on both sides of the third positioning bolt (27).

9. The accessory milling apparatus according to claim 1, characterized in that: It also includes a milling assembly, which comprises: The frame (29) is fixedly installed on the rear side wall of the chassis (1); Cylinder (30), the cylinder (30) is mounted on the top of the frame (29); Motor (31), said motor (31) is mounted at the output end of said cylinder (30); A milling cutter (32) is connected to the output end of the motor (31).

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