Chamfering machine

Abstract

The invention relates to the technical field of electric tools, and discloses a chamfering machine. The chamfering machine comprises a shell, a driving piece, a transmission mechanism, a rotating shaft and a tool rest. The driving piece is arranged in the shell. The transmission mechanism is arranged in the shell, and the input end of the transmission mechanism is connected with the output shaft of the driving piece. The rotating shaft is rotatably arranged in the shell and connected with the output end of the transmission mechanism, and the driving piece, the transmission mechanism and the rotating shaft are sequentially arranged in the preset direction. The tool rest, the rotating shaft and the output shaft of the driving piece are located on the same axis. The tool rest is provided with a plurality of blades surrounding the preset direction and a plurality of mounting planes corresponding to the blades one to one, and each blade is attached to the corresponding mounting plane. According to the chamfering machine, the chamfering process can be smoother.

Description

Technical Field

[0001] The embodiments of the present application relate to the technical field of electric tools, and in particular to a chamfering machine. Background Art

[0002] With the continuous emergence of various tools, the processing efficiency in different working scenarios has been continuously improved. The use of tools enables operators to use external forces to perform processing operations. In particular, with the development of electric tools, tools do not need to be powered by the outside world during use, which greatly facilitates operators to perform processing operations in various scenarios.

[0003] In the process of mechanical manufacturing and assembly, chamfering is one of the common processing operations. Chamfering can remove burrs on the edge of the workpiece and improve assembly accuracy and aesthetics. The use of chamfering tools can reduce the tedious operations of operators and improve processing efficiency and processing accuracy. However, the existing chamfering tools are limited by their own structure and there is an unstable operation during the chamfering process. Therefore, how to make the chamfering process smoother is an important issue. Summary of the invention

[0004] The purpose of the embodiments of the present application is to provide a chamfering machine that can make the chamfering process smoother.

[0005] To solve the above technical problems, the embodiment of the present application provides a chamfering machine. The chamfering machine includes a housing, a driving member, a transmission mechanism, a rotating shaft and a tool holder. The driving member is arranged in the housing. The transmission mechanism is arranged in the housing, and the input end of the transmission mechanism is connected to the output shaft of the driving member. The rotating shaft is rotatably arranged in the housing, and the rotating shaft is connected to the output end of the transmission mechanism. The driving member, the transmission mechanism and the rotating shaft are arranged in sequence along a preset direction. The tool holder is connected to the rotating shaft, and the tool holder, the rotating shaft and the output shaft of the driving member are located on the same axis. The tool holder is provided with a plurality of blades surrounding the preset direction. The tool holder is provided with a plurality of mounting planes corresponding to the plurality of blades one by one, each blade is attached to the corresponding mounting plane, and each mounting plane is inclined to the same side relative to the preset direction. Each mounting plane includes an inner edge and an outer edge connected to each other, the inner edge is located within the outer contour of the tool holder, the outer edge coincides with the outer contour of the tool holder, and the outer edge is inclined at an angle of 30 to 70 degrees relative to the rotating axis of the tool holder.

[0006] The chamfering machine provided by the embodiment of the present application makes the rotating shaft on which the blade is installed and the output shaft of the driving member be located on the same axis. At the same time, the transmission mechanism, the rotating shaft and the driving member are located in the same direction, so that the power can be transmitted in a straight line direction, ensuring the stability of the power transmission process. After the driving member is started, the power is smoothly transmitted to the rotating shaft through the output shaft of the driving member and the transmission of the transmission mechanism, and the rotating shaft drives the blade on the tool holder to rotate to achieve chamfering. The transmission mechanism can increase the torque at the output end and enhance the cutting force of the blade. Thereby making the chamfering process smoother. In addition, by controlling the installation angle of the blade, the discharge direction of the chips can be better controlled, while ensuring the cutting performance of the blade, and it is not easy to melt.

[0007] In some embodiments, the tool holder is provided with a first positioning surface and a second positioning surface corresponding to each mounting plane, the first positioning surface is tilted toward a side close to the rotation axis relative to a preset direction, and the second positioning surface is tilted toward a side away from the rotation axis relative to a preset direction, and the first positioning surface and the second positioning surface abut against different cutting edges of the corresponding blade. In this way, different positions of the blade can be limited by different positioning surfaces, which facilitates the installation and fixation of the blade.

[0008] In some embodiments, the first positioning surface and the second positioning surface corresponding to the same mounting plane are separated to form a clearance zone, each blade includes a plurality of corners, one of the corners of the blade is arranged corresponding to the clearance zone, and at least two corners of the blade are located outside the corresponding mounting plane. In this way, the blade can be avoided by the clearance zone to avoid interference with the blade.

[0009] In some embodiments, each blade is provided with a plurality of notches, and the notches are located between two adjacent corners. In this way, the notches can be used to form a avoidance, protect the blade, and facilitate taking during installation and removal.

[0010] In some embodiments, the tool holder is provided with a first groove and a second groove recessed inward from the mounting plane, the first groove is adjacent to the first positioning surface, and the second groove is adjacent to the second positioning surface. In this way, the groove can reduce direct contact with the blade, ensure the fit of the blade, and reduce the occurrence of collision.

[0011] In some embodiments, the chamfering machine further comprises an end cover, which is connected to the housing, and the end cover houses the rotating shaft and part of the tool holder cover, and a first bearing is arranged between the end cover and the tool holder. In this way, the end cover can protect the rotating shaft.

[0012] In some embodiments, the chamfering machine further comprises a rotating sleeve, a second bearing is arranged on the side of the end cover away from the rotating shaft, the rotating sleeve is sleeved on the second bearing, and the rotating sleeve accommodates part of the tool holder. In this way, the resistance of the chamfering machine during the chamfering process can be reduced by the rotation of the rotating sleeve.

[0013] In some embodiments, a third bearing is disposed between the rotating sleeve and the tool holder, and the third bearing is disposed coaxially with the first bearing. In this way, the rotating sleeve can support the rotating shaft.

[0014] In some embodiments, the chamfering machine further includes a guide sleeve, the guide sleeve includes a connecting portion and a guide portion connected to each other, the connecting portion is threadedly connected to the rotating sleeve, and the guide portion is located on a side of the rotating sleeve close to the blade. In this way, the guide sleeve can be used to guide the chamfering process and facilitate the adjustment of the chamfering depth.

[0015] In some embodiments, the chamfering machine includes a rolling ring mounted on the end of the tool holder, the blade has a straight edge and a curved edge connected to each other, the straight edge and the curved edge form an intersection, and the projection of the intersection on the rolling ring is located radially inside the edge of the rolling ring. In this way, the blade is not prone to edge formation during the chamfering process. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] One or more embodiments are exemplarily described by pictures in the corresponding drawings, and these exemplified descriptions do not constitute limitations on the embodiments. Elements with the same reference numerals in the drawings represent similar elements, and unless otherwise stated, the figures in the drawings do not constitute proportional limitations.

[0017] Figure 1 is a schematic diagram of the three-dimensional structure of a chamfering machine provided in some embodiments of the present application;

[0018] Figure 2 is a side structural schematic diagram of a chamfering machine provided in some embodiments of the present application;

[0019] Figure 3 is along Figure 2 Schematic diagram of the cross-sectional structure along the AA direction;

[0020] Figure 4 yes Figure 3 A schematic diagram of the enlarged structure at B in the middle;

[0021] Figure 5 is a schematic diagram of the three-dimensional structure of a tool holder in a chamfering machine provided in some embodiments of the present application;

[0022] Figure 6 It is a schematic diagram of the three-dimensional structure of the tool holder in the chamfering machine provided in some embodiments of the present application when a blade is installed. DETAILED DESCRIPTION

[0023] To make the purpose, technical scheme and advantages of the embodiments of the present application clearer, each embodiment of the present application will be described in detail below in conjunction with the accompanying drawings. However, it will be appreciated by those skilled in the art that in each embodiment of the present application, many technical details are proposed in order to enable the reader to better understand the present application. However, even without these technical details and various changes and modifications based on the following embodiments, the technical scheme claimed in the present application can also be implemented. The division of the following embodiments is for the convenience of description, and the specific implementation of the present application should not constitute any limitation, and the various embodiments can be combined with each other and referenced to each other without contradiction.

[0024] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by technicians in the technical field to which this application belongs; the terms used herein are only for the purpose of describing specific embodiments and are not intended to limit this application; the terms "including" and "having" in the specification and claims of this application and the above-mentioned figure descriptions and any variations thereof are intended to cover non-exclusive inclusions.

[0025] In the description of the embodiments of the present application, unless otherwise clearly specified and limited, technical terms such as "installed", "connected", "connected" and the like should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the embodiments of the present application can be understood according to the specific circumstances.

[0026] During the manufacturing process of metal workpieces, a large number of burrs are often left on the corners or edges of holes of the workpieces. People generally use various handheld chamfering machines to chamfer and remove burrs on the workpieces. The existing chamfering machines generally use pneumatic handheld chamfering machines, which are modified from angle grinders. During the chamfering process, the chamfering effect is often not ideal, and the chamfering has edges. This type of chamfering machine is often troubled by problems such as unstable transmission and inconvenient operation during the processing, and it is difficult to adapt to complex and diverse processing requirements.

[0027] In order to ensure that the chamfering process is smoother, some embodiments of the present application provide a chamfering machine. The chamfering machine mainly includes a driving mechanism, a transmission mechanism, and an actuator. The transmission mechanism is located on one side of the driving mechanism, and power is transmitted between the driving mechanism and the actuator. The driving mechanism, the transmission mechanism, and the actuator are located on the same axis, so that the power is transmitted along the same axis, and the power transmission process is more stable. Among them, the transmission mechanism can increase the torque at the output end, thereby making the chamfering process smoother.

[0028] Combine the following Figures 1 to 6 The structure of the chamfering machine provided in some embodiments of the present application is described. Figure 5 The structure of the tool holder in the chamfering machine is shown. Figure 6 The matching structure of the tool holder and the blade in the chamfering machine is shown.

[0029] like Figures 1 to 6 As shown, the chamfering machine provided in some embodiments of the present application includes a housing 11, a driving member 12, a transmission mechanism 13, a rotating shaft 14 and a tool holder 15. The driving member 12 is arranged in the housing 11. The transmission mechanism 13 can be set as a planetary gear transmission structure, the planetary gear transmission structure 13 is arranged in the housing 11, and the input end of the planetary gear transmission structure 13 is connected to the output shaft 121 of the driving member 12. The rotating shaft 14 is rotatably arranged in the housing 11, the rotating shaft 14 is connected to the output end of the planetary gear transmission structure 13, and the rotating shaft 14 and the output shaft 121 of the driving member 12 are located on the same axis ( Figure 3 The driving member 12, the planetary gear transmission structure 13 and the rotating shaft 14 are arranged along the preset direction ( Figure 3 The tool holder 15 is connected to the rotating shaft 14, and the tool holder 15 is provided with a plurality of blades 16 surrounding a preset direction. The rotation speed of the tool holder 15 can be 1600r / min to 12000r / min, preferably 1600r / min to 9000r / min. The tool holder 15 is provided with a plurality of mounting planes 151 corresponding to the plurality of blades 16 one by one, and each blade 16 is attached to the corresponding mounting plane 151, and each mounting plane 151 is inclined toward the same side relative to the preset direction. Each mounting plane 151 includes an inner edge 1511 and an outer edge 1512 connected to each other, and the inner edge 1511 is located within the outer contour of the tool holder 15, and the outer edge 1512 coincides with the outer contour of the tool holder 15, and the outer edge 1512 is relative to the rotating axis ( Figure 5 The inclination angle of the rotation axis shown by the straight line E in the middle Figure 5 The included angle S) between the extension line F of the middle outer edge 1512 and the rotation axis E can be 30 degrees to 70 degrees.

[0030] The shell 11 forms the outer shell packaging part of the chamfering machine. The shell 11 can provide a basis for the installation of other components and provide protection for other components. The motor drive part corresponding to the shell 11 can adopt a cylindrical casing 112, which is made of high-strength alloy material to ensure that the shell 11 has excellent protection and wear resistance. The shell 11 as a whole can be packaged with different cylinders at different positions and combined together to form a whole to reduce the difficulty of assembly. For example, an upper sleeve 113 and a middle sleeve 114 are designed at the location of the transmission structure, and the upper sleeve 113 is fixed on the lower cover of the cylindrical casing 112 and connected to the middle sleeve 114 by a thread. The middle sleeve 114 is made of wear-resistant material, and the internal space is designed as a placement area for the planetary gear set. The end face of the sleeve can be sealed by a cover body.

[0031] The driving member 12 is the driving part of the chamfering machine, which can output power for the normal operation of the chamfering machine. The driving member 12 can be a motor, and the rotor of the motor can be composed of an electromagnetic coil and a magnetic conductive material, and the electromagnetic coil is wound on the core component of the rotor. When current passes through the electromagnetic coil, a rotating magnetic field is generated, which interacts with the static magnetic field formed by the stator to drive the rotor to rotate. The carbon brush supplies power to the rotor through sliding contact, and the bearing is installed in the bearing chamber to ensure smooth rotation of the rotor and reduce friction. The bearing chamber is tightly connected to the housing 11 through precision machining to ensure structural stability. A disc spring can be used to maintain the appropriate pressure of the carbon brush on the rotor, and the fan blade can be installed on the output shaft 121 of the rotor to achieve cooling of the motor when it runs at high speed to prevent overheating and damage to the motor components.

[0032] The planetary gear transmission structure 13 decelerates the motion output by the driving member 12 through the cooperation between the sun gear and the planetary gear 132, increases the torque and transmits it to the execution part at the rear end. The output shaft 121 of the driving member 12 is made of high-strength steel and is inserted into the center wheel 131, that is, the sun wheel hole, and has good anti-torsion performance. The center wheel 131 and the planetary gear 132 can be connected by helical gear meshing to provide smooth and efficient power transmission. Multiple planetary gears 132 are evenly distributed on the planetary carrier 133, and the planetary carrier 133 is installed in the sleeve through bearings to achieve synchronous operation of the transmission. The planetary gear 132 transmits torque through meshing, and has the characteristics of efficient deceleration and stable output.

[0033] The rotating shaft 14 is the part that receives the power transmitted by the front end. After receiving the power, the rotating shaft 14 drives the tool holder 15 to rotate, so as to perform chamfering processing with the help of the cutting action of the blade 16 installed on the tool holder 15. The rotating shaft 14 and the output shaft 121 of the driving member 12 are located on the same axis, so that the power can be transmitted along a straight line to ensure the stability of power transmission. Driven by the output shaft 121 of the driving member 12, the rotating shaft 14 can drive the tool holder 15 to perform chamfering processing to increase the output torque and enhance the cutting force of the blade 16. Multiple blades 16 can be evenly arranged, and the blades 16 can also be set with a certain axial bevel angle.

[0034] The mounting plane 151 on the tool holder 15 can provide a basis for the installation of the blade 16. The outer side of the mounting plane 151 is unobstructed, and a threaded hole 157 can be opened on the mounting plane 151 facing the side of the tool holder 15. During the installation and fixation process, the blade 16 can be assembled in a fixed position on the mounting plane by fasteners. At the same time, the mounting plane 151 maintains a certain degree of inclination relative to the preset direction, which can make the blade 16 have a certain cutting angle, improve the cutting effect, and reduce the phenomenon of the blade 16 breaking due to the excessive hardness of the workpiece. The number of mounting planes 151 of the tool holder 15 can be three, four or five. For example, in Figure 4 In the tool holder 15 shown, three mounting planes 151 can be designed. The corresponding three blades 16 are evenly mounted on the tool holder 15 at a central angle of 120 degrees.

[0035] The chamfering machine provided in some embodiments of the present application makes the rotating shaft 14 on which the blade 16 is installed and the output shaft 121 of the driving member 12 located on the same axis. At the same time, the planetary gear transmission structure 13 is located in the same direction as the rotating shaft 14 and the driving member 12, so that the power can be transmitted along the straight line direction, ensuring the stability of the power transmission process. After the driving member 12 is started, the power is smoothly transmitted to the rotating shaft 14 through the transmission of the output shaft 121 and the planetary gear set, and the rotating shaft 14 drives the blade 16 on the tool holder 15 to rotate to achieve chamfering. In addition, the transmission part adopts the planetary gear transmission structure 13, which can increase the torque at the output end and enhance the cutting force of the blade 16. This makes the chamfering process smoother.

[0036] In addition, part of the edge of the mounting plane 151 on the tool holder 15 overlaps with the outer contour of the tool holder 15, and the inclination angle of the outer edge 1512 of the mounting plane 151 relative to the rotation axis of the tool holder 15 is controlled, so that the cutting angle of the blade 16 after installation can be controlled. By controlling the axial bevel angle of each mounting plane 151, that is, the angle formed between the outer edge 1512 where the mounting plane 151 overlaps with the outer contour of the tool holder 15 and the rotation axis of the tool holder 15 within a range of 30 to 70 degrees, the chip discharge direction can be better controlled, while ensuring the cutting performance of the blade 16, and preventing melting from occurring.

[0037] In actual situations, the angle design of each part of the cutter disc of the tool holder 15 affects the processing performance of the blade 16. In order to ensure the processing performance of the chamfering machine, each angle can be designed within an appropriate range. For example, when the radial bevel angle of the cutter disc is a negative angle of negative 2 degrees to negative 5 degrees, it can have good chip discharge. When the side cutting edge angle of the cutter disc is a large angle between 45 degrees, 75 degrees, and 90 degrees, the chip thickness can be reduced and the cutting load can be alleviated. When the front angle of the cutter disc is 20 degrees to 35 degrees, it can have good cutting performance and is not easy to melt. When the inclination angle of the cutting edge of the cutter disc is 20 degrees to 35 degrees, it can have good chip discharge and less cutting resistance.

[0038] like Figure 4 As shown, the tool holder 15 may be provided with a first positioning surface 152 and a second positioning surface 153 corresponding to each mounting plane 151. The first positioning surface 152 is tilted toward a side close to the rotation axis 14 relative to a preset direction, and the second positioning surface 153 is tilted toward a side away from the rotation axis 14 relative to a preset direction, and the first positioning surface 152 and the second positioning surface 153 abut against different cutting edges of the corresponding blade 16.

[0039] The positioning surface is adjacent to the mounting plane 151, and the positioning surface can play a limiting role in the installation of the blade 16, so that the blade 16 has a certain positioning basis when fixed. The first positioning surface 152 and the second positioning surface 153 are arranged on different directions of the mounting plane 151, and face different directions at the same time. The first positioning surface 152 is inclined toward the side close to the rotating shaft 14 relative to the preset direction, and the second positioning surface 153 is inclined toward the side away from the rotating shaft 14 relative to the preset direction. The angle between the first positioning surface 152 and the second positioning surface 152 can be 90 degrees, that is, the first positioning surface 152 and the second positioning surface 153 can be arranged vertically, and the blade 16 is limited from two directions perpendicular to each other. In addition, the first positioning surface 152 and the second positioning surface 153 can remain connected, or disconnected.

[0040] In some embodiments, Figure 4 and Figure 5 As shown, the first positioning surface 152 and the second positioning surface 153 corresponding to the same mounting plane 151 are disconnected to form a clearance area 154, each blade 16 includes a plurality of corners 161, one of the corners 161 of the blade 16 is arranged corresponding to the clearance area 154, and at least two corners 161 of the blade 16 are located outside the corresponding mounting plane 151.

[0041] That is to say, a clearance area 154 is formed at the edge where the first positioning surface 152 and the second positioning surface 153 are close to each other. The clearance area 154 can play a clearance role for the installation of the blade 16 to avoid interference with the blade 16. The corner 161 of the blade 16 is the connecting part of the blade. During the assembly of the blade 16 with the mounting plane 151, one of the corners 161 of the blade 16 can be placed corresponding to the clearance area 154. At the same time, at least two of the other corners 161 of the blade 16 are located outside the mounting plane 151 to ensure that the blade 16 can normally play a cutting role during the movement. In addition, after the blade 16 is worn, the installation angle of the blade 16 can be changed so that the normal blade of the blade 16 faces the workpiece.

[0042] In some embodiments, each blade 16 may be provided with a plurality of notches 162 , and the notches 162 are located between two adjacent corners 161 .

[0043] The position of the notch 162 can avoid direct contact with other components or workpieces, reducing the difficulty of positioning the blade 16 during assembly. At the same time, the probability of the blade 16 breaking can also be reduced.

[0044] like Figure 4 As shown, the tool holder 15 may be provided with a first groove 155 and a second groove 156 recessed inward from the mounting plane 151 , the first groove 155 is adjacent to the first positioning surface 152 , and the second groove 156 is adjacent to the second positioning surface 153 .

[0045] The first groove 155 and the second groove 156 are formed by being recessed inward from the installation plane 151, the first groove 155 extends in a direction parallel to the first positioning surface 152, and the second groove 156 extends in a direction parallel to the second positioning surface 153. The first groove 155 and the second groove 156 can avoid direct contact with the blade 16, which facilitates the installation of the blade 16. At the same time, the blade 16 will vibrate during operation, and the vacant area formed by the groove can avoid direct collision with the blade 16, thereby protecting the blade 16.

[0046] like Figures 1 to 3 As shown, the chamfering machine may further include an end cover 115 , which is connected to the housing 11 , and the end cover 115 covers the rotating shaft 14 and part of the tool holder 15 , and a first bearing 1151 is provided between the end cover 115 and the tool holder 15 .

[0047] The setting of the end cover 115 can, on the one hand, seal the middle sleeve 114 for installing the transmission structure, and on the other hand, protect the rotating shaft 14 to prevent the rotating shaft 14 from being easily affected by the external environment. In addition, the end cover 115 can also provide an installation basis for the setting of other sleeves. The end cover 115 includes an integrally formed cover body part and a cylinder body part. The cover body part can be connected to the middle sleeve 114, and the cylinder body part can extend from the cover body part toward the side where the blade 16 is located, and the cover is arranged on the outer periphery of the rotating shaft 14. In this way, the different parts of the end cover 115 can jointly play a connecting role and a protective role.

[0048] like Figures 1 to 3 As shown, the chamfering machine may further include a rotating sleeve 17 , a second bearing 1152 is provided on the side of the end cover 115 away from the rotating shaft 14 , the rotating sleeve 17 is sleeved on the second bearing 1152 , and the rotating sleeve 17 accommodates part of the tool holder 15 therein.

[0049] The rotating sleeve 17 is connected to the side of the end cover 114 away from the rotating shaft 14 through the second bearing 1152, and the rotating sleeve 17 can rotate relative to the end cover 114. By rotating the rotating sleeve 17, the sliding friction can be converted into rolling friction, thereby improving the chamfering efficiency.

[0050] In addition, a third bearing 171 is disposed between the rotating sleeve 17 and the tool holder 15 , and the third bearing 171 is coaxially disposed with the first bearing 1151 .

[0051] The rotating sleeve 17 can support the rotating shaft 14. When installing the rotating sleeve 17, the third bearing 171 can be inserted into the tool holder 15, and the rotating sleeve 17 is sleeved on the outer ring of the third bearing 171. The friction of the blade 16 when rotating can be reduced, and the chamfer of the blade 16 can be adjusted.

[0052] In addition, the chamfering machine may further include a guide sleeve 18 , which includes a connecting portion 181 and a guiding portion 182 that are connected to each other. The connecting portion 181 is threadedly connected to the rotating sleeve 17 , and the guiding portion 182 is located on a side of the rotating sleeve 17 close to the blade 16 .

[0053] The guide sleeve 18 is threadedly connected to the outer side of the rotating sleeve 17 and can move up and down relative to the rotating sleeve 17 to adjust the chamfering depth. The operator can control the axial position of the blade 16 and the depth of the chamfer by adjusting the guide sleeve 18.

[0054] In actual situations, the end of the tool holder 15 to which the blade 16 is mounted can also be connected to the rolling ring 19 through a bearing. When the lower edge of the guide sleeve 18 moves along the edge for chamfering, the rolling ring 19 can roll along the edge, thereby improving the chamfering efficiency.

[0055] like Figure 4 and Figure 6 As shown, the distance between the outer edge of the rolling ring 19 and the rotation axis of the tool holder 16 is greater than the distance between the intersection G on the blade 16 and the rotation axis of the tool holder 16, and the extension line P of the outer edge of the rolling ring 19 is located on the side of the intersection G on the blade 16 away from the rotation axis of the tool holder 15. That is, the projection of the intersection G on the blade 16 along the preset direction is located within the edge of the rolling ring 19. In this way, it is not easy for the blade 16 to have an edge during the chamfering process. Here, the intersection G on the blade 16 is the critical point where the straight blade of the blade 16 is close to the notch 162. Since the edge line of the notch 162 is a curved edge, the intersection G is also formed by the intersection of the straight edge and the curved edge on the blade 16.

[0056] In addition, a distance block can be installed at the lower part of the guide sleeve 18 to limit the working distance of the blade 16. A bottom plate 101 can be installed at the bottom end of the guide sleeve 18 close to the blade 16 to provide additional support and protection functions.

[0057] like Figures 1 to 3 As shown, the chamfering machine may further include two handles 111 , both of which are connected to the outside of the housing 11 and are relatively arranged on both sides of the planetary gear transmission structure 13 .

[0058] Two handles 111 are arranged on both sides of the cylindrical casing, which conform to the ergonomic design, provide a stable operating grip, and reduce the fatigue of the operator during long-term operation.

[0059] The chamfering machine provided in some embodiments of the present application can provide higher chamfering processing accuracy and adapt to axis chamfering of different specifications. In addition, by adopting the planetary gear set design, the power transmission is smooth, the deceleration is efficient, the structure is compact, and the operation is simple. The overall design can reduce the complexity and fatigue of manual operation. The multi-point adjustment function ensures the flexibility and diversity of chamfering and adapts to different processing requirements.

[0060] Those skilled in the art will appreciate that the above-mentioned embodiments are specific examples for implementing the present application, and in actual applications, various changes may be made thereto in form and detail without departing from the spirit and scope of the present application.

Claims

1. A chamfering machine, characterized in that: include: case; A driving member, disposed in the housing; A transmission mechanism is arranged in the housing, and an input end of the transmission mechanism is connected to an output shaft of the driving member; A rotating shaft is rotatably disposed in the housing, the rotating shaft is connected to an output end of the transmission mechanism, and the driving member, the transmission mechanism and the rotating shaft are sequentially disposed along a preset direction; A tool holder is connected to the rotating shaft, the tool holder, the rotating shaft and the output shaft of the driving member are located on the same axis, the tool holder is provided with a plurality of blades surrounding the preset direction, the tool holder is provided with a plurality of mounting planes corresponding to the plurality of blades one by one, each of the blades is attached to the corresponding mounting plane, each of the mounting planes is inclined toward the same side relative to the preset direction, each of the mounting planes includes an inner edge and an outer edge connected to each other, the inner edge is located within the outer contour of the tool holder, the outer edge coincides with the outer contour of the tool holder, and the outer edge has an inclination angle of 30 to 70 degrees relative to the rotating axis of the tool holder.

2. The chamfering machine according to claim 1, characterized in that: The tool holder is provided with a first positioning surface and a second positioning surface corresponding to each of the mounting planes, the first positioning surface is inclined relative to the preset direction toward a side close to the rotation axis, and the second positioning surface is inclined relative to the preset direction toward a side away from the rotation axis, and the first positioning surface and the second positioning surface abut against different cutting edges of the corresponding blades.

3. The chamfering machine according to claim 2, characterized in that: The first positioning surface and the second positioning surface corresponding to the same installation plane are disconnected to form a clearance area, each of the blades includes multiple corners, one of the corners of the blade is arranged corresponding to the clearance area, and at least two of the corners of the blade are located outside the corresponding installation plane.

4. The chamfering machine according to claim 3, characterized in that: Each of the blades is provided with a plurality of notches, and the notches are located between two adjacent corners.

5. The chamfering machine according to claim 2, characterized in that: The tool holder is provided with a first groove and a second groove recessed inwardly from the mounting plane, the first groove is adjacent to the first positioning surface, and the second groove is adjacent to the second positioning surface.

6. The chamfering machine according to claim 1, characterized in that: It also includes an end cover, which is connected to the shell, and the end cover sets the rotating shaft and part of the tool holder cover inside, and a first bearing is set between the end cover and the tool holder.

7. The chamfering machine according to claim 6, characterized in that: It also includes a rotating sleeve. A second bearing is arranged on the side of the end cover away from the rotating shaft. The rotating sleeve is sleeved on the second bearing. The rotating sleeve accommodates part of the tool holder.

8. The chamfering machine according to claim 7, characterized in that: A third bearing is arranged between the rotating sleeve and the tool holder, and the third bearing is arranged coaxially with the first bearing.

9. The chamfering machine according to claim 7 or 8, characterized in that: It also includes a guide sleeve, which includes a connecting portion and a guiding portion that are connected to each other. The connecting portion is threadedly connected to the rotating sleeve, and the guiding portion is located on a side of the rotating sleeve close to the blade.

10. The chamfering machine according to claim 1, characterized in that: The chamfering machine comprises a rolling ring mounted on the end of the tool holder, the blade has a straight edge and a curved edge connected to each other, the straight edge and the curved edge form an intersection, and the projection of the intersection on the rolling ring is located radially inside the edge of the rolling ring.

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