Tungsten steel end mill for machining side wall

Abstract

The invention relates to the technical field of milling cutter equipment, and discloses a tungsten steel end mill for processing side walls, which comprises a combined connection structure and a tool bit structure, the lower end of the combined connection structure is in limit connection with the tool bit structure, and the combined connection structure and the tool bit structure are in movable limit connection. The combined connecting structure and the tool bit structure can be subjected to deformation adjustment of relative positions, the tool bit structure rotates along with the combined connecting structure to perform milling operation, the tool bit structure is arranged by adopting a buffer structure, stress can be absorbed, the stability is improved, and the combined connecting structure comprises a butt-joint threaded rod, a nested fixing frame, a limiting guide rod and an adaptive inner groove. A nesting fixing frame is fixedly connected to the lower end of the butt joint threaded rod, an adaptive inner groove is formed in the center of the nesting fixing frame, a limiting guide rod is arranged at the position, located in the adaptive inner groove, of the nesting fixing frame, and the nesting fixing frame is fixedly connected with the limiting guide rod. Through the arrangement of the combined connecting structure and the tool bit structure, stable use and work of the milling cutter are achieved.

Description

Technical Field

[0001] The invention relates to the technical field of milling cutter equipment, in particular to a tungsten steel end mill for machining side walls. Background Art

[0002] A milling cutter is a type of rotary tool. When working, each tooth cuts off the excess of the workpiece intermittently in sequence. Milling cutters are mainly used to process planes, steps, grooves, forming surfaces and cut off workpieces on milling machines. There are many types of milling cutters, such as: cylindrical milling cutters, end mills, three-sided milling cutters, integral welded tooth type, indexable type, etc.

[0003] Cylindrical milling cutters are used to process planes on horizontal milling machines. The teeth are distributed on the circumference of the milling cutter and are divided into straight teeth and spiral teeth according to the tooth shape. According to the number of teeth, they are divided into coarse teeth and fine teeth. Coarse-toothed spiral-toothed milling cutters have fewer teeth, higher tooth strength, and larger chip space, and are suitable for rough processing; fine-toothed milling cutters are suitable for fine processing.

[0004] Face milling cutters are used on vertical milling machines, end milling machines or gantry milling machines to process flat end faces and circumferences. They have teeth and can be divided into coarse teeth and fine teeth. There are three types of structures: integral type, inlaid tooth type and indexable type.

[0005] End mills are used to process grooves and step surfaces, etc. The teeth are on the circumference and end faces, and they cannot be fed axially during operation. When the end mill has end teeth that pass through the center, axial feeding is possible.

[0006] The three-edge milling cutter is used to process various grooves and step surfaces, and has teeth on both sides and the circumference.

[0007] Angle milling cutters are used to mill grooves at a certain angle. Tungsten steel end mills are made in two types: single-angle and double-angle milling cutters.

[0008] Saw blade milling cutters are used to process deep grooves and cut off workpieces. They have more teeth on the circumference. In order to reduce friction during milling, the teeth have a secondary deflection angle of 15′-1° on both sides. In addition, there are keyway milling cutters, dovetail slot milling cutters, T-slot milling cutters and various forming milling cutters.

[0009] According to Chinese patent publication number CN111975074A, a side milling cutter for processing side walls is disclosed, which belongs to the field of mechanical tool technology. The side milling cutter is a four-edge side milling cutter, and the four side edges adopt an asymmetric structure, which can perform non-equal grinding on the workpiece, significantly reduce tool vibration, and increase the front angle to achieve rapid chip removal. At the same time, the groove depth, top width and side taper of the side edge are adjusted to improve processing efficiency.

[0010] However, there are still some deficiencies in the existing tungsten steel end mills during use. When the current end mills rotate, they will all bear an outward centrifugal force, which will cause structural instability. It is best to have a structure that can absorb the centrifugal force and improve the stability of the overall tool. Therefore, the current end mills need to be improved. Summary of the Invention

[0011] The purpose of the present invention is to provide a tungsten steel end mill for processing side walls to solve the problems raised in the above background technology.

[0012] To achieve the above purpose, the present invention provides the following technical solution: A tungsten steel end mill for processing side walls includes a combined connection structure and a cutter head structure. The lower end of the combined connection structure is limitedly connected to the cutter head structure. The combined connection structure and the cutter head structure are connected by movable limits. The combined connection structure and the cutter head structure can undergo deformation adjustment of relative positions. The cutter head structure rotates with the combined connection structure for milling operations. The cutter head structure is provided with a buffer structure, which can absorb stress and improve stability.

[0013] Specifically, the combined connection structure includes a docking threaded rod, a nested fixing frame, a limit guide rod, and an adaptation inner groove. The lower end of the docking threaded rod is fixedly connected to the nested fixing frame. The center of the nested fixing frame is provided with an adaptation inner groove. The nested fixing frame is provided with a limit guide rod at the position of the adaptation inner groove, and the nested fixing frame is fixedly connected to the limit guide rod. The limit guide rod is designed with a cuboid structure. The docking threaded rod is provided with threads. The docking threaded rod, the nested fixing frame, and the limit guide rod are integrally fixed. The nested fixing frame is limitedly set with the cutter head structure through the adaptation inner groove. The combination of the docking threaded rod, the nested fixing frame, the limit guide rod, and the adaptation inner groove facilitates the limited connection of the cutter head structure.

[0014] Specifically, the cutter head structure includes a docking stabilizing component and a stress absorbing component. The docking stabilizing component and the stress absorbing component are limitedly set. The docking stabilizing component can be adjusted on the stress absorbing component. The stress absorbing component performs specific milling processing. Through the setting of the docking stabilizing component and the stress absorbing component, stress absorption work can be carried out during operation.

[0015] Specifically, the docking and stabilizing component includes a docking and stabilizing ring, a first protective ring frame, a second protective ring frame, articulated connecting rods, articulated coupling shafts, a cooperating movement frame, a fixed bracket seat, a circular guide frame, a first spring, an adaptor clamping frame, and a cooperative ring frame. The lower end of the docking and stabilizing ring is fixedly connected to the first protective ring frame, and the lower end of the first protective ring frame is fixedly connected to the second protective ring frame. The center of the bottom of the docking and stabilizing ring is articulated with the articulated connecting rods, and the lower end of the articulated connecting rods is articulated with the articulated coupling shafts. The articulated coupling shafts are fixedly connected to the cooperating movement frame. On both sides of the bottom of the docking and stabilizing ring, there are provided fixed bracket seats, circular guide frames, first springs, adaptor clamping frames, and cooperative ring frames. The fixed bracket seats are fixedly connected to the docking and stabilizing ring in a limiting manner. The upper end of the fixed bracket seat is fixedly connected to the circular guide frame. The cooperative ring frame is elastically connected to the fixed bracket seat through the adaptor clamping frame. The front part of the cooperative ring frame is fixedly connected to the adaptor clamping frame, and the adaptor clamping frame is articulated with the articulated connecting rods. The docking and stabilizing ring is provided with a groove at the connection position of the articulated connecting rods, and the groove is used for accommodating the fixed bracket seats, circular guide frames, first springs, adaptor clamping frames, and cooperative ring frames. At the same time, the docking and stabilizing ring is provided with a hole for the downward movement of the articulated connecting rods at the front part, and the hole and the groove are communicated. Through the combined setting of the docking and stabilizing ring, the first protective ring frame, the second protective ring frame, the articulated connecting rods, the articulated coupling shafts, the cooperating movement frame, the fixed bracket seats, the circular guide frames, the first springs, the adaptor clamping frames, and the cooperative ring frames, centrifugal force can be absorbed through deformation, improving the stability performance of the overall equipment.

[0016] Specifically, the stress absorption component includes an internal limiting rod, a protective and reinforcing seat, and a cutter head frame. The lower end of the internal limiting rod is fixedly connected to the protective and reinforcing seat, and the lower end of the protective and reinforcing seat is fixedly connected to the cutter head frame. The internal limiting rod is provided with an adaptor groove at both ends, and the internal limiting rod is slidably connected to the limiting guide rod and the adaptor inner groove inside the nested fixing frame in a matching manner. The combination of the internal limiting rod, the protective and reinforcing seat, and the cutter head frame can perform milling work through the rotational force acting on the upper part.

[0017] Specifically, the stress absorption component further includes an internal combined guide rod, a second spring, a limiting gasket frame, and a circular connecting rod. The lower end of the internal combined guide rod is fixedly connected to the limiting gasket frame. The second spring is sleeved on the internal combined guide rod. The circular connecting rod is fixedly connected to the protective and reinforcing seat. The cooperating movement frame is arranged in a penetrating and matching manner with the protective and reinforcing seat. The center of the cooperating movement frame is penetrated by the second spring. The lower end of the cooperating movement frame is elastically connected to the limiting gasket frame through the second spring. The combined setting of the internal combined guide rod, the second spring, the limiting gasket frame, and the circular connecting rod facilitates buffer protection work and can also perform limiting protection.

[0018] Specifically, the combined connection structure and the cutter head structure are connected in a limited way through a nested fixing frame and a first protective ring frame, and the butt joint stabilizing component and the stress absorbing component are connected in a limited way through a matching moving frame and a protective reinforcement base. Through the combined connection of the structures, the stability of the overall structure is improved.

[0019] Specifically, a second connecting piece is fixedly connected to the butt joint threaded rod. A spring buffer guide rod is arranged at the upper end of the second connecting piece. The second connecting piece is elastically connected to a first connecting piece through the spring buffer guide rod. The first connecting piece and the second connecting piece are arranged in parallel, which can strengthen the stability of the connection.

[0020] A method for using a tungsten steel end mill for processing side walls includes the following steps:

[0021] S1. The user fixes the combined connection structure and the cutter head structure to an external driving part through a butt joint threaded rod. At this time, the combined connection structure rotates. The butt joint threaded rod drives the nested fixing frame, the limit guide rod, and the whole of the matching inner groove to move. The built-in limit rod is located on the limit guide rod and can be adjusted on the matching inner groove for buffer connection.

[0022] S2. Since the butt joint stabilizing component is fixed to the nested fixing frame, and the connection between the built-in limit rod and the nested fixing frame can drive the whole cutter head structure to rotate. At this time, the butt joint stabilizing ring can support and limit the position of the matching moving frame. Due to the centrifugal force, the matching moving frame can move. At this time, the matching moving frame applies stress outward through a hinge coupling shaft and a hinge connecting rod. The built-in combined guide rod and the circular connecting rod limit it. The stress is conducted to the matching clamping frame and the cooperative ring frame, so that the matching clamping frame and the cooperative ring frame can be deformed through the circular guide frame. At the same time, the first spring can be stretched downward to ensure the overall stability, so as to offset the stress effect.

[0023] S3. Under the action of the second spring, the matching moving frame is dragged downward to ensure the stability of the whole matching moving frame. The rotational force acts on the protective reinforcement base and the cutter head frame, so that the cutter head frame rotates to perform milling processing on the side wall.

[0024] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0025] First, through the structural setting of the combined connection structure of the present invention, it is convenient to perform limited connection on the cutter head structure. The butt joint threaded rod and the nested fixing frame inside the combined connection structure are fixed. At the same time, an adaptation inner groove is opened in the center of the nested fixing frame, and a limit guide rod is arranged on the adaptation inner groove. The combination of the limit guide rod and the adaptation inner groove can be adaptively set with the cutter head structure, so that the cutter head structure can perform up and down position adjustment activities in the limit guide rod and the adaptation inner groove, and can perform buffer protection work.

[0026] II. Through the structural arrangement of the cutter head structure, the interior of the cutter head structure is combined with a docking and stabilizing component and a stress absorption component. The docking and stabilizing component is fixed to the nested fixing frame inside the combined connection structure. The mating movement frame at the inner end of the docking and stabilizing component can move in cooperation on the docking and stabilizing ring through the articulated connecting rod, the adapter clamping frame, and the cooperative ring frame. At the same time, the setting of the first spring, the fixed bracket seat, and the circular guide frame can perform buffering work. Under the centrifugal force, the mating movement frame can absorb the centrifugal force through adjustment. The built-in limiting rod, the protection and reinforcement seat, and the cutter head frame inside the stress absorption component are integrally fixed to strengthen the fastening of the connection. At the same time, the built-in combined guide rod is adaptively arranged with the mating movement frame, and the mating movement frame is elastically connected to the limit gasket frame through the second spring to assist in the limiting work and can absorb stress at the same time. The circular connecting rod can assist in the limiting support work of the mating movement frame, thereby improving the stability of the connection. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0028] Figure 1 It is a three-dimensional structure schematic diagram of the front view of the main body of the present invention;

[0029] Figure 2 It is an exploded view of the main body of the present invention;

[0030] Figure 3 It is a sectional view of the combined connection structure of the present invention;

[0031] Figure 4 It is a three-dimensional structure schematic diagram of the front view of the cutter head structure of the present invention;

[0032] Figure 5 It is a three-dimensional structure schematic diagram of the front view of the docking and stabilizing component of the present invention;

[0033] Figure 6 It is a three-dimensional structure schematic diagram of the front view of the stress absorption component of the present invention;

[0034] Figure 7 It is a sectional view of the stress absorption component of the main body of the present invention;

[0035] Figure 8 It is a three-dimensional structure schematic diagram of the front view of the second embodiment of the main body of the present invention.

[0036] In the figure: 1 - combined connection structure, 2 - cutter head structure, 3 - docking threaded rod, 4 - nested fixing bracket, 5 - limiting guide rod, 6 - matching inner groove, 7 - docking stabilizing component, 8 - stress absorption component, 9 - docking stabilizing ring, 10 - first protective ring frame, 11 - second protective ring frame, 12 - hinged connecting rod, 13 - hinge coupling shaft, 14 - cooperative movement frame, 15 - fixed bracket seat, 16 - circular guide frame, 17 - first spring, 18 - matching clamping frame, 19 - cooperative ring frame, 20 - built-in limiting rod, 21 - protective reinforcement seat, 22 - cutter head frame, 23 - built-in combined guide rod, 24 - second spring, 25 - limiting gasket frame, 26 - circular connecting rod, 27 - first connecting piece, 28 - spring buffer guide rod, 29 - second connecting piece. Detailed implementation manner

[0037] In order to enable those skilled in the art of the present technology to better understand the solution of this application, the following will clearly and completely describe the technical solutions in the embodiments of this application with reference to the accompanying drawings in the embodiments of this application. Obviously, the described embodiments are only a part of the embodiments of this application, rather than all the embodiments. Based on the embodiments in this application, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the scope of protection of this application.

[0038] It should be noted that the terms "first", "second", etc. in the description and claims of this application and the above-mentioned drawings are used to distinguish similar objects, and do not necessarily need to describe a specific order or sequence. It should be understood that such data can be interchanged under appropriate circumstances so as to describe the embodiments of this application here. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusion. For example, a process, method, system, product or device including a series of steps or units does not necessarily have to be limited to those steps or units clearly listed, but may include other steps or units not clearly listed or inherent to these processes, methods, products or devices.

[0039] The following further illustrates the present invention with reference to the accompanying drawings.

[0040] Embodiment 1

[0041] Please refer to Figure 1-7 , an embodiment provided by the present invention: a tungsten steel end mill for processing side walls, including a combined connection structure 1 and a cutter head structure 2, and the lower end of the combined connection structure 1 is limitedly connected to the cutter head structure 2;

[0042] The combined connection structure 1 and the cutter head structure 2 are connected in a movable limiting manner, and the relative positions of the combined connection structure 1 and the cutter head structure 2 can be deformed and adjusted. The cutter head structure 2 rotates with the combined connection structure 1 for milling operations;

[0043] The cutter head structure 2 is provided with a buffer structure, which can absorb stress and improve stability.

[0044] The combined connection structure 1 includes a butt joint screw rod 3, a nested fixing frame 4, a limit guide rod 5 and an adaptation inner groove 6. The lower end of the butt joint screw rod 3 is fixedly connected with a nested fixing frame 4. An adaptation inner groove 6 is opened at the center of the nested fixing frame 4. A limit guide rod 5 is arranged at the position of the adaptation inner groove 6 of the nested fixing frame 4, and the nested fixing frame 4 is fixedly connected with the limit guide rod 5. The limit guide rod 5 is designed with a cuboid structure. The butt joint screw rod 3 is provided with threads. The butt joint screw rod 3, the nested fixing frame 4 and the limit guide rod 5 are integrally fixed. The nested fixing frame 4 is limited with the cutter head structure 2 through the adaptation inner groove 6. The butt joint screw rod 3 and the nested fixing frame 4 are integrally fixed. The setting of the adaptation inner groove 6 facilitates the connection with the cutter head structure 2. At the same time, the structural function of the limit guide rod 5 can help to limit the cutter head structure 2 and facilitate the limit connection of the cutter head structure 2.

[0045] The cutter head structure 2 includes a butt joint stabilizing component 7 and a stress absorbing component 8. The butt joint stabilizing component 7 is limited with the stress absorbing component 8. The butt joint stabilizing component 7 can be adjusted on the stress absorbing component 8. The stress absorbing component 8 performs specific milling processing. The butt joint stabilizing component 7 and the stress absorbing component 8 are limited to each other and can be adjusted relatively to improve the structural stability and absorb stress through deformation.

[0046] The docking and stabilizing component 7 includes a docking and stabilizing ring 9, a first protective ring frame 10, a second protective ring frame 11, a hinged connecting rod 12, a hinged connecting shaft 13, a cooperating moving frame 14, a fixed bracket seat 15, a circular guide frame 16, a first spring 17, an adapter clamping frame 18, and a cooperating ring frame 19. The lower end of the docking and stabilizing ring 9 is fixedly connected to the first protective ring frame 10, and the lower end of the first protective ring frame 10 is fixedly connected to the second protective ring frame 11. The center of the bottom of the docking and stabilizing ring 9 is hinged with the hinged connecting rod 12, the lower end of the hinged connecting rod 12 is hinged with the hinged connecting shaft 13, and the hinged connecting shaft 13 is fixedly connected to the cooperating moving frame 14. On both sides of the bottom of the docking and stabilizing ring 9, there are provided a fixed bracket seat 15, a circular guide frame 16, a first spring 17, an adapter clamping frame 18, and a cooperating ring frame 19. The fixed bracket seat 15 is limited and fixed to the docking and stabilizing ring 9. The upper end of the fixed bracket seat 15 is fixedly connected to the circular guide frame 16. The cooperating ring frame 19 is elastically connected to the fixed bracket seat 15 through the adapter clamping frame 18. The front part of the cooperating ring frame 19 is fixedly connected to the adapter clamping frame 18, and the adapter clamping frame 18 is hinged with the hinged connecting rod 12. A groove is provided at the connecting position of the docking and stabilizing ring 9 where the hinged connecting rod 12 is located, and the groove is used for the internal placement of the fixed bracket seat 15, the circular guide frame 16, the first spring 17, the adapter clamping frame 18, and the cooperating ring frame 19. At the same time, a hole for the downward movement of the hinged connecting rod 12 is provided at the front part of the docking and stabilizing ring 9, and the hole and the groove are communicated. The docking and stabilizing ring 9, the first protective ring frame 10, and the second protective ring frame 11 are integrally fixed and can provide side protection. At the same time, the cooperating moving frame 14 is limited through the hinged connecting rod 12 and can move up and down. At the same time, the adapter clamping frame 18 and the cooperating ring frame 19 are connected to the cooperating moving frame 14. When the cooperating moving frame 14 is stressed, it acts on the first spring 17 through the adapter clamping frame 18 and the cooperating ring frame 19, and the first spring 17 performs the absorption work.

[0047] The stress absorption component 8 includes a built-in limit rod 20, a protection and reinforcement base 21, and a cutter head holder 22. The lower end of the built-in limit rod 20 is fixedly connected to the protection and reinforcement base 21, and the lower end of the protection and reinforcement base 21 is fixedly connected to the cutter head holder 22. An adaptation slot is provided in the exposed part of the built-in limit rod 20. The built-in limit rod 20 is slidably connected in an adapted manner with the limit guide rod 5 and the adapted inner slot 6 inside the nested fixing frame 4. The combined connection structure 1 and the cutter head structure 2 are limit-connected through the nested fixing frame 4 and the first protection ring frame 10. The docking and stabilizing component 7 and the stress absorption component 8 are limit-connected through the cooperating movement frame 14 and the protection and reinforcement base 21. The lower end of the built-in combined guide rod 23 is fixedly connected to a limit gasket holder 25. A second spring 24 is sleeved on the built-in combined guide rod 23. The circular connecting rod 26 is fixedly connected to the protection and reinforcement base 21. The cooperating movement frame 14 is arranged in an adapted and penetrating manner with the protection and reinforcement base 21. The center of the cooperating movement frame 14 is arranged in a penetrating manner with the second spring 24. The lower end of the cooperating movement frame 14 is elastically connected to the limit gasket holder 25 through the second spring 24. The built-in combined guide rod 23 and the circular connecting rod 26 are used for limit connection. Through the elastic action, the second spring 24 can ensure the position limitation of the cooperating movement frame 14, and the limit gasket holder 25 protects the upper and lower sides.

[0048] A method for using a tungsten carbide end mill for machining side walls includes the following steps:

[0049] S1. The user fixes the combined connection structure 1 and the cutter head structure 2 to an external driving part through the docking threaded rod 3. At this time, the combined connection structure 1 rotates, and the docking threaded rod 3 drives the nested fixing frame 4, the limit guide rod 5, and the adapted inner slot 6 to move as a whole. The built-in limit rod 20 is located on the limit guide rod 5 and can be adjusted on the adapted inner slot 6 for buffer connection.

[0050] S2. Since the docking and stabilizing component 7 is fixed to the nested fixing frame 4, and the connection between the built-in limit rod 20 and the nested fixing frame 4 can drive the cutter head structure 2 to rotate as a whole. At this time, the docking and stabilizing ring 9 can support and limit the position of the cooperating movement frame 14. Due to the centrifugal force, the cooperating movement frame 14 can move. At this time, the cooperating movement frame 14 applies stress outward through the hinge connecting shaft 13 and the hinge connecting rod 12. The built-in combined guide rod 23 and the circular connecting rod 26 limit it. The stress is conducted to the adapted clamping frame 18 and the cooperating ring frame 19, so that the adapted clamping frame 18 and the cooperating ring frame 19 can be deformed through the circular guide frame 16. At the same time, the first spring 17 can be stretched downward to ensure the overall stability, thereby offsetting the stress effect.

[0051] S3. With the movement frame 14 being pulled downward under the action of the second spring 24, the stability of the entire movement frame 14 is ensured. The rotational force acts on the protection and reinforcement seat 21 and the cutter head frame 22, causing the cutter head frame 22 to rotate for milling the side wall.

[0052] When this embodiment is implemented, the user combines the combined connection structure 1 and the cutter head structure 2 as a whole. Among them, the movement frame 14 is arranged inside the protection and reinforcement seat 21, and the built-in limit rod 20 is arranged inside the nested fixing frame 4, and is limited through the limit guide rod 5 and the adaptor inner groove 6.

[0053] First, fix the combined connection structure 1 and the cutter head structure 2 to an external driving member through the docking threaded rod 3. When the driving member is driven, the combined connection structure 1 rotates at this time, and the docking threaded rod 3 drives the nested fixing frame 4, the limit guide rod 5, and the adaptor inner groove 6 to move as a whole. The built-in limit rod 20 is located on the limit guide rod 5 and can be adjusted on the adaptor inner groove 6 to assist in internal buffer connection.

[0054] After that, since the docking and stabilizing member 7 is fixed to the nested fixing frame 4, and the connection between the built-in limit rod 20 and the nested fixing frame 4 can drive the entire cutter head structure 2 to rotate. At this time, the docking and stabilizing ring 9 can support and limit the position of the movement frame 14. Due to the centrifugal force, the movement frame 14 can move. At this time, the movement frame 14 applies stress outward through the hinge coupling shaft 13 and the hinge connecting rod 12. The built-in combined guide rod 23 and the circular connecting rod 26 limit it. The stress is transmitted to the adaptor clamping frame 18 and the cooperative ring frame 19, enabling the adaptor clamping frame 18 and the cooperative ring frame 19 to deform through the circular guide frame 16. At the same time, the first spring 17 can be stretched downward to ensure the overall stability, thereby offsetting the stress effect.

[0055] After that, under the action of the second spring 24, the movement frame 14 also has a downward tensile force, pulling the movement frame 14 downward to ensure the overall stability of the movement frame 14.

[0056] Finally, the rotational force acts on the protection and reinforcement seat 21 and the cutter head frame 22, causing the cutter head frame 22 to rotate for milling the side wall and completing the work.

[0057] Embodiment 2

[0058] On the basis of Embodiment 1, as Figure 8 shown, a second connecting piece 29 is fixedly connected to the docking threaded rod 3. A spring buffer guide rod 28 is provided at the upper end of the second connecting piece 29. The second connecting piece 29 is elastically connected to a first connecting piece 27 through the spring buffer guide rod 28. The first connecting piece 27 and the second connecting piece 29 are arranged in parallel.

[0059] When this embodiment is implemented, a first connecting piece 27, a spring buffer guide rod 28, and a second connecting piece 29 are arranged on the docking threaded rod 3. The second connecting piece 29 limits the bottom, and the first connecting piece 27 can undergo elastic deformation through the spring buffer guide rod 28. When the docking threaded rod 3 is in docking combination, through the operation of the first connecting piece 27, the reliability of the connection can be enhanced.

[0060] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A tungsten steel end mill for machining side walls, characterized in that: It comprises a combined connection structure (1) and a cutter head structure (2), wherein the lower end of the combined connection structure (1) is limit-connected to the cutter head structure (2); The combined connection structure (1) and the cutter head structure (2) are connected by a movable limiter connection, and the combined connection structure (1) and the cutter head structure (2) can be deformed and adjusted in relative position, and the cutter head structure (2) rotates with the combined connection structure (1) to perform milling operations; The cutter head structure (2) is provided with a buffer structure, which can absorb stress and improve stability.

2. A tungsten steel end mill for machining side walls according to claim 1, characterized in that: The combined connection structure (1) comprises a butt-jointed threaded rod (3), a nested fixing frame (4), a limiting guide rod (5) and an adapting inner groove (6); the lower end of the butt-jointed threaded rod (3) is fixedly connected to the nested fixing frame (4); the center of the nested fixing frame (4) is provided with an adapting inner groove (6); the nested fixing frame (4) is provided with a limiting guide rod (5) at the position of the adapting inner groove (6); the nested fixing frame (4) is fixedly connected to the limiting guide rod (5); the limiting guide rod (5) is designed as a rectangular parallelepiped structure; the butt-jointed threaded rod (3) is provided with threads; the butt-jointed threaded rod (3), the nested fixing frame (4) and the limiting guide rod (5) are fixed as a whole; the nested fixing frame (4) is limited by the adapting inner groove (6) and the cutter head structure (2).

3. A tungsten steel end mill for machining side walls according to claim 2, characterized in that: The cutter head structure (2) comprises a docking stabilizing component (7) and a stress absorbing component (8); the docking stabilizing component (7) and the stress absorbing component (8) are limitedly arranged; the docking stabilizing component (7) can be adjusted on the stress absorbing component (8); and the stress absorbing component (8) performs a specific milling process.

4. A tungsten steel end mill for machining side walls according to claim 3, characterized in that: The docking stabilization component (7) comprises a docking stabilization ring (9), a first protection ring frame (10), a second protection ring frame (11), an articulated connecting rod (12), an articulated connecting shaft (13), a matching motion frame (14), a fixed bracket seat (15), a circular guide frame (16), a first spring (17), an adapter bracket (18) and a cooperative ring frame (19), wherein the lower end of the docking stabilization ring (9) is fixedly connected to the first protection ring frame (10), and the lower end of the first protection ring frame (10) is fixedly connected to the second protection ring frame (11), the bottom center of the docking stabilization ring (9) is hingedly arranged with the articulated connecting rod (12), the lower end of the articulated connecting rod (12) is hingedly arranged with the articulated connecting shaft (13), and the articulated connecting shaft (13) is fixedly connected with the matching motion frame (14), and the bottom sides of the docking stabilization ring (9) are provided with a fixed bracket seat (15) and a circular guide frame (16). , a first spring (17), an adaptor bracket (18) and a cooperative ring frame (19), the fixed bracket seat (15) and the docking stabilizing ring (9) are fixed in position, the upper end of the fixed bracket seat (15) is fixedly connected with a circular guide frame (16), the cooperative ring frame (19) is elastically connected to the fixed bracket seat (15) through the adaptor bracket (18), the front part of the cooperative ring frame (19) is fixedly connected with the adaptor bracket (18), the adaptor bracket (18) is hingedly arranged with the hinge connecting rod (12), the docking stabilizing ring (9) is provided with a groove body at the connection position of the hinge connecting rod (12), and the groove body is used for the fixed bracket seat (15), the circular guide frame (16), the first spring (17), the adaptor bracket (18) and the cooperative ring frame (19) to be built-in, and at the same time, the docking stabilizing ring (9) is provided with a hole body at the front part for the hinge connecting rod (12) to move downward, and the hole body and the groove body are connected.

5. A tungsten steel end mill for machining side walls according to claim 4, characterized in that: The stress absorbing component (8) comprises a built-in limiting rod (20), a protective reinforcement seat (21) and a cutter head frame (22); the lower end of the built-in limiting rod (20) is fixedly connected to the protective reinforcement seat (21); the lower end of the protective reinforcement seat (21) is fixedly connected to the cutter head frame (22); an adapting groove is provided on the inner side of the built-in limiting rod (20); the built-in limiting rod (20) is adaptively slidably connected to the limiting guide rod (5) and the adapting inner groove (6) inside the nested fixing frame (4).

6. A tungsten steel end mill for machining side walls according to claim 5, characterized in that: The stress absorbing component (8) further comprises a built-in combined guide rod (23), a second spring (24), a limit washer frame (25) and a circular connecting rod (26); the lower end of the built-in combined guide rod (23) is fixedly connected to the limit washer frame (25); the built-in combined guide rod (23) is sleeved with the second spring (24); the circular connecting rod (26) is fixedly connected to the protection reinforcement seat (21); the matching motion frame (14) is adapted to be interlinked with the protection reinforcement seat (21); the center of the matching motion frame (14) is interlinked with the second spring (24); and the lower end of the matching motion frame (14) is elastically connected to the limit washer frame (25) via the second spring (24).

7. A tungsten steel end mill for machining side walls according to claim 6, characterized in that: The combined connection structure (1) and the cutter head structure (2) are connected in a limited position by means of a nested fixing frame (4) and a first protective ring frame (10), and the docking stabilizing component (7) and the stress absorbing component (8) are connected in a limited position by means of a matching moving frame (14) and a protective reinforcement seat (21).

8. The tungsten steel end mill for machining side walls according to claim 7, characterized in that: A second connecting piece (29) is fixedly connected to the butt-jointed threaded rod (3); a spring buffer guide rod (28) is provided at the upper end of the second connecting piece (29); the second connecting piece (29) is elastically connected to the first connecting piece (27) via the spring buffer guide rod (28); and the first connecting piece (27) and the second connecting piece (29) are arranged in parallel.

9. A method for using a tungsten steel end mill for machining a side wall, using the tungsten steel end mill for machining a side wall in claim 7, characterized in that: The following steps are involved: S1. The user fixes the combined connection structure (1) and the cutter head structure (2) to an external driving member via a docking threaded rod (3). At this time, the combined connection structure (1) rotates, and the docking threaded rod (3) drives the nested fixing frame (4), the limiting guide rod (5), and the adapting inner groove (6) to move as a whole. The built-in limiting rod (20) is located on the limiting guide rod (5) and can be adjusted on the adapting inner groove (6) to perform a buffer connection. S2. Since the docking stabilizing component (7) is fixed to the nested fixing frame (4), and the built-in limiting rod (20) is connected to the nested fixing frame (4), the cutter head structure (2) can be driven to rotate as a whole. At this time, the docking stabilizing ring (9) can support and limit the position of the matching moving frame (14). Due to the centrifugal effect, the matching moving frame (14) can move. At this time, the matching moving frame (14) applies stress outward through the hinged shaft (13) and the hinged connecting rod (12). The built-in combined guide rod (23) and the circular connecting rod (26) are used for restriction. The stress is transmitted to the adapting card frame (18) and the cooperative ring frame (19), so that the adapting card frame (18) and the cooperative ring frame (19) can be deformed through the circular guide frame (16). At the same time, the first spring (17) can be stretched downward to ensure the overall stability, thereby offsetting the stress effect. S3, under the action of the second spring (24), the cooperating motion frame (14) is dragged downward to ensure the overall stability of the cooperating motion frame (14), and the rotational force acts on the protective reinforcement seat (21) and the cutter head frame (22), so that the cutter head frame (22) rotates to perform the milling process on the side wall.

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