Convenient replacement mechanism for tooth profile cyclone separation chamfering tool

Abstract

The invention discloses a convenient replacement mechanism for a tooth profile cyclone separation chamfering tool in the technical field of chamfering machining. The convenient replacement mechanism comprises a tool body. A plurality of chamfering grooves are formed in the cutter body in the circumferential direction. Chamfering teeth are arranged in the chamfering grooves in a sliding fit mode. A limiting groove is formed in the chamfering groove; a limiting assembly used for limiting vertical displacement of the chamfering teeth along the chamfering groove is arranged in the limiting groove. A hydraulic assembly used for limiting tangential displacement of the chamfering teeth along the cutter body is arranged in the chamfering groove. According to the scheme, by adopting the design of the replaceable chamfering sheets, the replacement cost of the cutter is effectively reduced, the service life of the cutter is prolonged, and the machining efficiency and the machining precision are improved.

Description

Technical Field

[0001] The invention belongs to the technical field of chamfering processing, and in particular is a convenient replacement mechanism for a tooth profile rotary chamfering tool. Background Art

[0002] With the continuous development of the manufacturing industry, the requirements for gear quality are getting higher and higher. Gear chamfering, as an important process measure in modern gear processing, has a significant effect on reducing the damage caused by gear heat treatment, such as thermal cracks, and appropriate edges and angles can also greatly improve the transmission performance of the gear.

[0003] In the actual machining process, in order to improve production efficiency, cutting parameters are usually optimized, such as adjusting the cutting speed, so as to produce more parts in each cycle. However, the faster the machining speed, the worse the stability is usually, and stress (including higher cutting force and heat generation) will affect the tool and the workpiece. Excessive speed will accelerate tool wear and require frequent tool replacement. Because the tool wears faster.

[0004] In view of the problem in the prior art that the tool wears too quickly and thus leads to increased production costs, there is an urgent need for a tool that can be quickly replaced. When the chamfered piece is worn to a certain extent, the chamfered piece can be replaced alone without replacing the entire tool. Summary of the invention

[0005] In order to solve the above problems, the purpose of the present invention is to provide a convenient replacement mechanism for tooth profile rotary chamfering tools, which adopts a replaceable chamfering plate design, can significantly reduce the cost of tool replacement, extend the service life of the tool, and improve processing efficiency.

[0006] In order to achieve the above-mentioned purpose, the technical solution of the present invention is as follows: a convenient replacement mechanism for a tooth profile rotary chamfering tool, comprising a tool body; a plurality of chamfering grooves are circumferentially arranged on the tool body; chamfered teeth are slidably fitted in the chamfering grooves; a limiting groove is arranged in the chamfering groove; a limiting assembly for limiting the vertical displacement of the chamfered teeth along the chamfering groove is arranged in the limiting groove; a hydraulic assembly for limiting the tangential displacement of the chamfered teeth along the tool body is arranged in the chamfering groove.

[0007] The above scheme has the following beneficial effects: 1. In this solution, the chamfered teeth are inserted into the chamfered grooves and fixed in the chamfered grooves by using the limit assembly and the hydraulic assembly to prevent the chamfered teeth from shifting or vibrating during operation. When one of the chamfered teeth is damaged, the damaged chamfered tooth is removed from the chamfered groove and replaced with a new one.

[0008] Compared with the prior art, since the tool and the chamfered teeth are an integrated structure, the tool needs to be replaced as a whole when it is damaged. The present invention designs replaceable chamfered teeth, so that when a part of the tool (such as the chamfered teeth) is damaged, it is not necessary to replace the entire tool body. This design greatly reduces the frequency and cost of tool replacement, because the user only needs to purchase and replace the damaged chamfered teeth instead of the entire tool.

[0009] 2. Since the chamfered teeth are replaceable, when a chamfered tooth is worn or damaged, it can be quickly replaced, thus avoiding the scrapping of the entire tool due to local damage. This not only extends the overall service life of the tool, but also improves the utilization rate and economic benefits of the tool.

[0010] 3. By equipping the chamfer groove with a limit assembly and a hydraulic assembly, the present invention ensures the stability and accuracy of the chamfer teeth during operation. The limit assembly prevents the chamfer teeth from vertically displacing along the chamfer groove, while the hydraulic assembly limits its tangential displacement along the tool. This dual fixing mechanism greatly reduces the offset and vibration of the chamfer teeth during operation, thereby improving the processing quality and accuracy.

[0011] Furthermore, the limit assembly includes a spring and a limit piston; the limit piston is slidably matched with the limit groove; the two ends of the spring are fixedly connected to the limit piston and the inner wall of the limit groove respectively; a through groove is provided in the chamfered tooth; a limit column is slidably matched in the through groove; the limit column is slidably matched with the limit groove when inserted into the limit groove; the cross-sectional shape of the limit column is consistent with the limit groove.

[0012] Beneficial effect: When one end of the limiting column is pushed into the limiting groove, the chamfered teeth are fixed in the chamfered groove through the synergistic effect of the limiting column and the limiting groove, so as to prevent the chamfered teeth from moving outward from the chamfered groove and falling off during the rotation of the tool. Through the close cooperation between the limiting column and the limiting groove, the present invention realizes a more stable fixation of the chamfered teeth.

[0013] Furthermore, the hydraulic assembly includes a hydraulic piston and a touch piston; a connecting pipe is arranged in the tool body; the first hydraulic groove and the second hydraulic groove are respectively connected at both ends of the connecting pipe; the first hydraulic groove and the second hydraulic groove are both connected with the chamfered groove; the hydraulic piston slides in cooperation with the first hydraulic groove; the touch piston slides in cooperation with the second hydraulic groove; when the touch piston is squeezed into the second hydraulic groove by the chamfered teeth, the hydraulic piston is pushed out of the first limit groove and enters the through groove.

[0014] Beneficial Effects: When the chamfered tooth is correctly installed in the chamfered groove, it squeezes the touch piston and makes it enter the second hydraulic groove. This action triggers the working mechanism of the hydraulic assembly, causing the hydraulic piston to be pushed out in the first hydraulic groove and eventually enter the through groove in the chamfered tooth. The cross-sectional shape of the hydraulic piston matches the through groove to ensure a tight fit between them.

[0015] Through the design of the hydraulic assembly, when the chamfered teeth are installed into the chamfered grooves, the hydraulic piston will be pushed out and tightly fixed in the through grooves. This design not only enhances the fixing effect of the chamfered teeth, but also improves its stability during operation. Even under high speed or high load working conditions, the chamfered teeth can maintain a stable fixed state, thereby reducing the risk of loosening or falling off due to vibration or impact.

[0016] The design of the hydraulic assembly makes the installation and removal of the chamfered teeth more convenient. The user only needs to insert the chamfered tooth into the chamfered groove and apply a little pressure to squeeze the touch piston to trigger the working mechanism of the hydraulic assembly. Similarly, when the chamfered tooth needs to be removed, the chamfered tooth can be easily removed from the chamfered groove by simply retracting the hydraulic piston into the first hydraulic groove in some way (such as releasing the hydraulic pressure).

[0017] Furthermore, the shape of the hydraulic piston is a "convex" structure; the shape of the protruding part of the hydraulic piston is consistent with the shape of the through groove.

[0018] Beneficial effects: The protruding part of the hydraulic piston is embedded in the through groove to improve the vertical stability of the chamfered tooth in the chamfered groove (i.e., the direction perpendicular to the rotation axis of the tool body); the side surface of the chamfered tooth is squeezed by the hydraulic piston (protruding side) to improve the stability of the chamfered tooth in the tangential direction of the tool body (i.e., the direction parallel to the rotation axis of the tool body).

[0019] By enhancing the vertical and tangential stability of the chamfered teeth, the present invention not only improves the machining accuracy and efficiency of the tool, but also extends the service life of the tool. This is because the stable chamfered tooth fixing mechanism reduces the risk of damage caused by vibration or impact, thereby reducing the frequency and cost of tool replacement.

[0020] Furthermore, the first hydraulic groove and the second hydraulic groove are both arranged in the direction of the shear stress on the chamfered tooth; the first hydraulic groove is located on the opposite side of the shear stress direction in the chamfered tooth; the second hydraulic groove is located on the same side of the shear stress direction in the chamfered tooth.

[0021] Beneficial effects: By arranging the first hydraulic groove and the second hydraulic groove in the direction of the shear stress on the chamfered teeth, the present invention realizes the effective utilization and transformation of the shear stress. When the chamfered teeth are working, the shear stress they are subjected to and the side walls of the chamfered groove will form a lever system. In this system, the shear stress will use the side walls of the chamfered groove as a fulcrum to generate a torque that tilts toward the second hydraulic groove. This torque will increase the stress on the touch piston, and then be converted into the thrust of the hydraulic piston through the hydraulic assembly. This design not only enhances the fixing effect of the chamfered teeth, but also improves its ability to resist shear stress.

[0022] Because the thrust of the hydraulic piston is directly converted from shear stress, it can clamp the chamfered teeth more tightly, thereby improving its stability and safety. This design helps reduce the risk of the chamfered teeth loosening or falling off due to vibration or impact, thereby ensuring the stability and reliability of the tool when rotating at high speed or cutting under heavy load.

[0023] Furthermore, a pressure regulating groove is provided in the connecting pipe; the pressure regulating groove is connected with the connecting pipe; an unlocking assembly for releasing the chamfered teeth is provided in the pressure regulating groove; the unlocking assembly includes a movable piston, a connecting rod, a swash plate and a latch; the movable piston is slidably matched with the pressure regulating groove; a rotating groove is connected to the bottom of the pressure regulating groove; the bottom of the movable piston is fixedly connected with the connecting rod; the swash plate is rotatably connected with the rotating groove; the top of the swash plate is in contact with the bottom of the connecting rod; a resetting assembly for resetting the swash plate is provided in the swash plate; the latch is used to limit the rotation of the swash plate.

[0024] Beneficial effect: When the chamfered teeth need to be replaced, the user only needs to pull out the pin to release the restriction on the rotation of the swash plate. Subsequently, the hydraulic pressure in the connecting pipe will push the moving piston downward, thereby driving the connecting rod to press against the top of the swash plate. Since the swash plate is rotatably connected to the rotating groove, the push of the connecting rod will cause the swash plate to rotate from the higher side to the lower side to contact the connecting rod. In this process, the rotation of the swash plate will change the hydraulic pressure distribution in the connecting pipe, thereby reducing the hydraulic pressure on the hydraulic piston. When the hydraulic pressure is reduced to a certain level, the restriction of the hydraulic piston is released, and the spring will reset the limit piston and the limit column, so that the chamfered teeth can be easily removed.

[0025] Furthermore, the reset assembly includes a torsion spring; the torsion spring is sleeved on the rotating shaft of the swash plate; one end of the torsion spring is fixedly connected to the inner wall of the rotating groove, and the other end of the torsion spring is fixedly connected to the swash plate.

[0026] Beneficial effects: By designing the torsion spring as a reset component, the present invention ensures that the swash plate can accurately return to its initial position after being pushed by the connecting rod. After the latch is pulled out, it can be smoothly inserted into the rotation groove along the initial path again, thereby re-limiting the rotation of the swash plate. Since the swash plate can be accurately reset, the user does not need to worry about the difficulty of operation caused by incorrect position of the swash plate when replacing the chamfered teeth. This makes the entire replacement process more convenient and efficient, and improves the user experience.

[0027] Furthermore, the cross section of the hydraulic piston is larger than the cross section of the touch piston.

[0028] Beneficial effect: By designing the cross-section of the hydraulic piston to be larger than the cross-section of the touch piston, the present invention achieves an amplification effect on the extrusion stress. When the touch piston is subjected to an external force, the extrusion stress generated by it will be transmitted to the hydraulic piston through the hydraulic pressure in the connecting pipe. Since the cross-section of the hydraulic piston is larger, the extrusion force on the hydraulic piston will be greater than the extrusion force on the touch piston under the same pressure, thereby achieving stress amplification. The increased extrusion stress of the hydraulic piston means that the clamping force on the chamfered teeth is also improved. This helps to fix the chamfered teeth more firmly, reduce their vibration and deviation during the cutting process, and thus improve the processing accuracy and surface quality.

[0029] Furthermore, the first hydraulic groove is higher than the second hydraulic groove; and the second hydraulic groove is located at one side of the bottom of the chamfered groove.

[0030] Beneficial effects: By setting the first hydraulic groove higher than the second hydraulic groove, the hydraulic piston and the touch piston can generate a torque to counteract the shear stress. The direction of this torque is opposite to the direction of the shear stress, thereby effectively offsetting the influence of part of the shear stress and improving the stability and service life of the chamfered teeth. By optimizing the layout design of the hydraulic groove, the present invention further enhances the clamping effect of the chamfered teeth. Under the action of shear stress, the hydraulic piston will be subjected to greater extrusion stress, thereby clamping the chamfered teeth more tightly, reducing the risk of loosening or falling off due to vibration or impact.

[0031] Furthermore, the shape of the end of the touch piston that contacts the chamfered teeth is spherical.

[0032] Beneficial effect: By providing a spherical structure on one side of the touch piston, the resistance of the chamfered tooth when inserted into the chamfered groove is reduced, so that the chamfered tooth can better push the touch piston back into the second hydraulic groove. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 It is a three-dimensional structural schematic diagram of an embodiment of a convenient replacement mechanism for a tooth profile rotary chamfering tool of the present invention.

[0034] Figure 2 for Figure 1 Top view of the .

[0035] Figure 3 for Figure 2 A partial enlarged schematic diagram of point P in the middle.

[0036] Figure 4 A schematic diagram of the structure of the unlocking component.

[0037] The figure marks in the drawings of the specification include: 1. tool body; 2. chamfered teeth; 101. hydraulic piston; 102. limit groove; 103. spring; 104. limit piston; 105. connecting pipe; 106. touch piston; 107. pressure regulating groove; 108. moving piston; 109. connecting rod; 110. rotating groove; 111. inclined plate; 112. torsion spring; 113. latch; 114. first hydraulic groove; 115. second hydraulic groove; 201. limit column; 202. through groove. DETAILED DESCRIPTION

[0038] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0039] In the description of the present invention, it is to be understood that the terms “longitudinal”, “lateral”, “vertical”, “up”, “down”, “front”, “back”, “left”, “right”, “vertical”, “horizontal”, “top”, “bottom”, “inside” and “outside” etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0040] In the description of the present invention, unless otherwise specified and limited, it should be noted that the terms "installed", "connected" and "connected" should be understood in a broad sense. For example, it can be a mechanical connection or an electrical connection, or it can be the internal connection between two components. It can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to the specific circumstances.

[0041] The following is further described in detail through specific implementation methods: The embodiment is basically as shown in the attached Figure 1-Figure 4 As shown: a convenient replacement mechanism for a tooth profile rotary chamfering tool, mainly comprising a tool body 1. The tool body 1 is provided with a plurality of chamfering grooves in the circumferential direction; each of the chamfering grooves is slidably fitted with a chamfering tooth 2; a limiting groove 102 is provided in the chamfering groove. In this embodiment, as shown in the attached Figure 3 As shown, the limiting groove 102 is located on the right side of the chamfered groove; a limiting component for limiting the vertical displacement of the chamfered tooth 2 along the chamfered groove (in the direction perpendicular to the rotation axis of the tool body 1 ) is arranged in the limiting groove 102 .

[0042] Specifically, the limit assembly includes a spring 103 and a limit piston 104; the limit piston 104 is slidably matched with the limit groove 102; the two ends of the spring 103 are respectively welded and fixed to the limit piston 104 and the inner wall of the limit groove 102; a through groove 202 is horizontally opened in the chamfered tooth 2, and the through groove 202 is cylindrical as a whole; a limit column 201 is slidably matched in the through groove 202; the limit column 201 is slidably matched with the limit groove 102 when inserted into the limit groove 102, specifically, when the through groove 202 is flush with the limit groove 102, when the limit column 201 slides due to the action of external force, the right end of the limit column 201 will push the limit piston 104, squeeze the spring 103, and finally slide into the limit groove 102 and get stuck; the cross-sectional shape of the limit column 201 in this embodiment is consistent with the limit groove 102, that is, the cross sections are both circles of equal size.

[0043] A hydraulic component is also provided in the chamfer groove for limiting the displacement of the chamfer teeth 2 along the tangential direction (the direction parallel to the rotation axis of the tool body 1 ) of the tool body 1 .

[0044] Specifically, as attached Figure 3 As shown, the hydraulic assembly includes a hydraulic piston 101 and a touch piston 106; a connecting pipe 105 is provided in the tool body 1, and in this embodiment, the connecting pipe 105 is filled with hydraulic oil; the two ends of the connecting pipe 105 are respectively connected to the first hydraulic groove 114 and the second hydraulic groove 115; the first hydraulic groove 114 and the second hydraulic groove 115 are both connected to the chamfered groove; the first hydraulic groove 114 is higher than the second hydraulic groove 115; the second hydraulic groove 115 is located on one side of the bottom of the chamfered groove. The hydraulic piston 101 is slidably matched with the first hydraulic groove 114; specifically, the shape of the end of the touch piston 106 that contacts the chamfered tooth 2 (i.e., the left side of the touch piston 106) is spherical. The touch piston 106 is slidably matched with the second hydraulic groove 115; when the touch piston 106 is squeezed into the second hydraulic groove 115 by the chamfered tooth 2, the hydraulic piston 101 is pushed out of the first limiting groove 102 and enters the through groove 202. In this embodiment, the shape of the hydraulic piston 101 is a "convex" structure, as shown in the attached Figure 3 As shown, the specific arrangement of the hydraulic piston 101 is to rotate the "convex" (i.e., the hydraulic piston 101) 90° clockwise; the shape of the protruding portion of the hydraulic piston 101 (i.e., the portion located on the right after the "convex" is rotated 90° clockwise) is consistent with the shape of the through groove 202. In this embodiment, the cross-sectional area of ​​the hydraulic piston 101 (mainly the left portion of the hydraulic piston 101) is larger than the cross-sectional area of ​​the touch piston 106, thereby achieving the effect of stress amplification.

[0045] In the present embodiment, the first hydraulic groove 114 and the second hydraulic groove 115 are both arranged in the direction of the shear stress to which the chamfered tooth 2 is subjected. Specifically, when the tool body 1 is mounted on the cutter shaft of the gear hobbing machine, the tool body 1 rotates driven by the cutter shaft. In the present embodiment, the cutter shaft is taken to rotate to the right as an example. At this time, the direction of the shear stress to which the chamfered tooth 2 is subjected is counterclockwise along the tangent direction of the tool body 1; the first hydraulic groove 114 is located on the side opposite to the direction of the shear stress in the chamfered tooth 2, that is, in the present embodiment, the first hydraulic groove 114 is located on the left side of the chamfered groove; the second hydraulic groove 115 is located on the side having the same direction of the shear stress in the chamfered tooth 2, that is, in the present embodiment, the second hydraulic groove 115 is located on the right side of the chamfered groove.

[0046] Combined with Figure 3 and attached Figure 4 As shown, a pressure regulating groove 107 is also provided in the communicating pipe 105; the pressure regulating groove 107 is communicated with the communicating pipe 105; an unlocking assembly for releasing the chamfered teeth 2 is provided in the pressure regulating groove 107; the unlocking assembly includes a moving piston 108, a connecting rod 109, a swash plate 111 and a latch 113; the moving piston 108 is slidably matched with the pressure regulating groove 107; a rotating groove 110 is communicated with the bottom of the pressure regulating groove 107; the bottom of the moving piston 108 is axially welded and fixed to the connecting rod 109; the swash plate 111 is connected to the rotating groove 110; the bottom of the moving piston 108 is axially welded and fixed to the connecting rod 109; the swash plate 111 is connected to the rotating groove 110; the connecting rod 109 is connected to the connecting rod 109 ... The bottom of the groove 110 is rotatably connected via a rotating shaft; the top of the swash plate 111 contacts the bottom of the connecting rod 109. Specifically, the contact position between the connecting rod 109 and the swash plate 111 is an eccentric position at the top of the swash plate 111. In this embodiment, a ball head is also welded and fixed to the bottom of the connecting rod 109 to reduce the friction between the swash plate 111 and the connecting rod 109, so as to facilitate better relative sliding between the connecting rod 109 and the swash plate 111; a reset component for resetting the swash plate 111 is provided in the swash plate 111.

[0047] Specifically, the reset assembly includes a torsion spring 112; Figure 4 As shown, the torsion spring 112 is sleeved on the rotating shaft of the swash plate 111 ; one end of the torsion spring 112 is welded and fixed to the inner wall of the rotating groove 110 , and the other end of the torsion spring 112 is welded and fixed to the bottom of the swash plate 111 .

[0048] In this embodiment, the latch 113 is used to limit the rotation of the swash plate 111. Figure 4 As shown, in this embodiment, the latch 113 sequentially penetrates the tool body 1 and the swash plate 111 and extends to the rotation slot 110. That is, the back of the swash plate 111 and the tool body 1 are both provided with a channel for the insertion of the latch 113.

[0049] The specific implementation process is as follows: the tool body 1 is mounted on the cutter shaft of the gear hobbing machine, and the tool shaft is used to drive the tool body 1 to rotate, and the rotating workpiece (such as a bevel gear) is chamfered. When the tool body 1 shears the tooth profile of the bevel gear, the chamfered tooth 2 cuts the tooth profile of the bevel gear. At this time, when the bevel gear contacts the chamfered tooth 2, the chamfered tooth 2 will be subjected to the shear stress of the reverse direction of the bevel gear. The shear stress will use the side wall of the chamfered groove as a fulcrum and the chamfered tooth 2 as a lever to generate a moment of force that tilts toward the second hydraulic groove 115 (i.e., the touch piston 106). The touch piston 106 amplifies the force through the hydraulic oil and transmits it to the hydraulic piston 101, thereby reinforcing the clamping and fixing of the hydraulic piston 101 to the chamfered tooth 2.

[0050] When one of the chamfered teeth 2 is damaged, the staff can disassemble the damaged chamfered teeth 2 on the tool body 1 without replacing the entire tool body 1. It is only necessary to replace the damaged chamfered teeth 2 with new chamfered teeth 2. The specific replacement steps are as follows: Remove the latch 113 to release the restriction on the rotation of the swash plate 111. Subsequently, the hydraulic pressure in the connecting pipe 105 will push the movable piston 108 downward, thereby driving the connecting rod 109 to resist the top of the swash plate 111. Since the swash plate 111 is rotatably connected to the rotating groove 110, the push of the connecting rod 109 will cause the swash plate 111 to rotate, turning from the higher side to the lower side to contact the connecting rod 109. In this process, the rotation of the swash plate 111 will change the hydraulic pressure distribution in the connecting pipe 105, thereby reducing the hydraulic pressure on the hydraulic piston 101. When the hydraulic pressure is reduced to a certain level, the restriction of the hydraulic piston 101 is released, and the spring 103 will reset the limit piston 104, the limit column 201 and the hydraulic piston 101. After the chamfered tooth 2 is freed from restraint, the chamfered tooth 2 can be easily taken out. At the same time, the hydraulic pressure in the pressure regulating groove 107 will not be enough to limit the reset of the moving piston 108, that is, the swash plate 111 is reset under the drive of the torsion spring 112, and the higher side is rotated to the bottom of the connecting rod 109 again, so that the connecting rod 109 pushes the moving piston 108 to move upward. Then the latch 113 is re-inserted into the rotation groove 110 to limit the rotation of the swash plate 111 again.

[0051] After the damaged chamfered tooth 2 is removed from the chamfered groove, a new chamfered tooth 2 is inserted into the chamfered groove. As the new chamfered tooth 2 is inserted along the side wall of the chamfered groove until the bottom side of the chamfered tooth 2 contacts the touch piston 106, the chamfered tooth 2 pushes the touch piston 106 back into the second hydraulic groove 115, and the touch piston 106 transmits the force to the first hydraulic groove 114 through the hydraulic oil in the connecting pipe 105, pushing the hydraulic piston 101 out. A part of the hydraulic piston 101 is pushed into the through groove 202, so that the limit column 201 presses against the limit piston 104 and slides into the limit groove 102 together, thereby completing the vertical and tangential fixation (i.e., the direction perpendicular to the rotation axis of the tool body 1 and the direction parallel to the rotation axis of the tool body 1).

[0052] The above is only an embodiment of the present invention, and the common knowledge such as the known specific structure and / or characteristics in the scheme is not described in detail here. It should be pointed out that for those skilled in the art, several deformations and improvements can be made without departing from the structure of the present invention, which should also be regarded as the protection scope of the present invention, and these will not affect the effect of the implementation of the present invention and the practicality of the patent. The scope of protection required by this application shall be based on the content of its claims, and the specific implementation methods and other records in the specification can be used to interpret the content of the claims.

Claims

1. A convenient replacement mechanism for a tooth profile spiral chamfering tool, comprising a tool body (1), characterized in that: A plurality of chamfered grooves are circumferentially arranged on the tool body (1); chamfered teeth (2) are slidably fitted in the chamfered grooves; limiting grooves (102) are arranged in the chamfered grooves; limiting components for limiting the vertical displacement of the chamfered teeth (2) along the chamfered grooves are arranged in the limiting grooves (102); and hydraulic components for limiting the tangential displacement of the chamfered teeth (2) along the tool body (1) are arranged in the chamfered grooves.

2. The convenient replacement mechanism for tooth profile rotary chamfering tools according to claim 1, characterized in that: The limiting assembly comprises a spring (103) and a limiting piston (104); the limiting piston (104) is slidably matched with the limiting groove (102); the two ends of the spring (103) are respectively fixedly connected to the limiting piston (104) and the inner wall of the limiting groove (102); a through groove (202) is provided in the chamfered teeth (2); a limiting column (201) is slidably matched in the through groove (202); the limiting column (201) is slidably matched with the limiting groove (102) when inserted into the limiting groove (102); and the cross-sectional shape of the limiting column (201) matches the limiting groove (102).

3. The convenient replacement mechanism for tooth profile rotary chamfering tools according to claim 2, characterized in that: The hydraulic assembly comprises a hydraulic piston (101) and a touch piston (106); a connecting pipe (105) is arranged in the tool body (1); two ends of the connecting pipe (105) are respectively connected to a first hydraulic groove (114) and a second hydraulic groove (115); the first hydraulic groove (114) and the second hydraulic groove (115) are both connected to the chamfered groove; the hydraulic piston (101) is slidably matched with the first hydraulic groove (114); the touch piston (106) is slidably matched with the second hydraulic groove (115); when the touch piston (106) is squeezed by the chamfered teeth (2) and enters the second hydraulic groove (115), the hydraulic piston (101) is pushed out of the first limiting groove (102) and enters the through groove (202).

4. The convenient replacement mechanism for tooth profile rotary chamfering tools according to claim 3 is characterized in that: The shape of the hydraulic piston (101) is a "convex" structure; the shape of the protruding portion of the hydraulic piston (101) matches the shape of the through groove (202).

5. The convenient replacement mechanism for tooth profile rotary chamfering tools according to claim 4, characterized in that: The first hydraulic groove (114) and the second hydraulic groove (115) are both arranged in the direction of the shear stress to which the chamfered tooth (2) is subjected; the first hydraulic groove (114) is located on the side of the chamfered tooth (2) opposite to the direction of the shear stress; and the second hydraulic groove (115) is located on the side of the chamfered tooth (2) that is in the same direction as the shear stress.

6. The convenient replacement mechanism for tooth profile rotary chamfering tools according to claim 5, characterized in that: A pressure regulating groove (107) is also provided in the communicating pipe (105); the pressure regulating groove (107) is communicated with the communicating pipe (105); an unlocking assembly for releasing the chamfered teeth (2) is provided in the pressure regulating groove (107); the unlocking assembly comprises a movable piston (108), a connecting rod (109), a swash plate (111) and a latch (113); the movable piston (108) is slidably matched with the pressure regulating groove (107); a rotating groove (110) is communicated with at the bottom of the pressure regulating groove (107); the bottom of the movable piston (108) is fixedly connected with the connecting rod (109); the swash plate (111) is rotatably connected with the rotating groove (110); the top of the swash plate (111) contacts the bottom of the connecting rod (109); a resetting assembly for resetting the swash plate (111) is provided in the swash plate (111); and the latch (113) is used to limit the rotation of the swash plate (111).

7. The convenient replacement mechanism for tooth profile rotary chamfering tools according to claim 6, characterized in that: The reset assembly comprises a torsion spring (112); the torsion spring (112) is sleeved on the rotating shaft of the swash plate (111); one end of the torsion spring (112) is fixedly connected to the inner wall of the rotating groove (110), and the other end of the torsion spring (112) is fixedly connected to the swash plate (111).

8. The convenient replacement mechanism for tooth profile rotary chamfering tools according to claim 7, characterized in that: The cross section of the hydraulic piston (101) is larger than the cross section of the touch piston (106).

9. The convenient replacement mechanism for tooth profile rotary chamfering tools according to claim 8, characterized in that: The first hydraulic groove (114) is higher than the second hydraulic groove (115); the second hydraulic groove (115) is located on one side of the bottom of the chamfered groove.

10. The convenient replacement mechanism for tooth profile rotary chamfering tools according to claim 9, characterized in that: The shape of the end of the touch piston (106) that contacts the chamfered tooth (2) is spherical.

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