Gear fillet milling tool

Abstract

The invention relates to the technical field of metal processing equipment, in particular to a gear fillet milling tool which comprises a tool body, the tool body is used for clamping a bearing and comprises a gear clamping part and a switching part, and the gear clamping part comprises a fixing seat. Through switching use of the switching part, the tool can clamp the gear and the inner gear ring at the same time, through use of the local switching unit, the gear and the inner gear ring can be clamped in a mixed mode, the overall use flexibility is good, and therefore mixed machining of gears of different models is facilitated; the adjusting plate is rotated along the rotating connection position of the ball bearing and the rotating shaft, the adjusting plate rotates and drives the clamping blocks to rotate together at the same time, and during the period, the crescent groove slides along the outer wall of the lower shell, so that the angle between the adjusting plate and the right-angle plate is changed, and the initial distance between the clamping blocks of the gear clamping part is adjusted; therefore, gears and inner gear rings with different diameters can be clamped.

Description

Technical Field

[0001] The present invention relates to the technical field of metal processing equipment, and particularly relates to a gear fillet milling tooling fixture. Background Art

[0002] In tooth surface machining, a forming milling cutter is generally used for milling. The forming milling cutter focuses more on the cutting of the tooth surface, while for gear fillet machining, a fillet milling cutter or a ball-end milling cutter is generally used, and the fillet milling cutter or the ball-end milling cutter focuses more on the smoothness of the chamfer. Therefore, tooth surface machining and gear fillet machining are usually divided into two working steps. To ensure the machining accuracy of the gear, the tooth surface machining and the gear fillet machining are usually completed in one clamping; Referring to a Chinese patent with the application number 202510165617.7, a gear fillet milling tooling fixture is disclosed. By providing a plurality of through holes on the mounting base and arranging a chuck, a sliding rod and a hydraulic component inside the mounting base, the hydraulic component is used to uniformly drive the sliding rod to clamp the gear blank, so that the machining of multiple gears can be completed in a single clamping, saving the clamping time of the gear blank. At the same time, when machining gears of the same specification, after the tooth surfaces of all the gear blanks are uniformly machined, the gear fillets can be uniformly machined, reducing the tool change time and improving the machining efficiency. After our research on this gear fillet milling tooling fixture, it is found that this tooling fixture can only be applied to the synchronous clamping of different models of gears with small specification differences, and the synchronous clamping effect for gears with large size differences is not ideal. Especially for outer peripheral gears and internal gear rings, synchronous clamping cannot be achieved, which is not conducive to the mixed machining of gears. Therefore, we propose a gear fillet milling tooling fixture to solve the above technical problems. Summary of the Invention

[0003] The present invention provides the following technical solution: A gear fillet milling tooling fixture, comprising: A tooling fixture main body for clamping a bearing, the tooling fixture main body comprising a gear clamping part and a switching part; The gear clamping part includes: A fixed seat fixedly installed on the machining table of the gear fillet milling machine; A lower housing fixedly installed on the top of the fixed seat at equal angles, and a sealing gasket is fixedly installed between the lower housing and the upper housing; An upper housing fixedly installed on the top of the lower housing; Right-angle plates slidably installed on the top of the upper housing at equal angles; An adjusting plate rotatably installed on the top of the right-angle plate; A clamping block fixedly installed at one end of the top of the adjusting plate; The switching part includes: A cylinder two opened in the middle of the top of the fixed seat; An air injection cavity opened in the lower part of the inner wall of the cylinder two; The air intake chamber is formed at the upper part of the inner wall of the second cylinder barrel. The confluence chamber is formed at the top of the fixed seat and is connected to the end of the air injection chamber and the air intake chamber. The torsion hole is formed at the top of the fixed seat and penetrates through the middle part of the second cylinder barrel and the air intake chamber. The valve rod is rotatably installed inside the torsion hole. A first valve hole and a second valve hole are formed through the outer wall of the valve rod, and the included angle between the first valve hole and the second valve hole is 90 degrees.

[0004] As a preferred solution of the present invention, the gear clamping part further includes: The bearing hole is formed at the top of the right-angle plate. The ball bearing is fixedly installed inside the bearing hole. The rotating shaft is fixedly installed on the inner wall of the ball bearing. The assembly hole is formed at the top of the adjusting plate, and the inner wall of the assembly hole is fixedly connected to the upper part of the outer wall of the rotating shaft.

[0005] As a preferred solution of the present invention, the gear clamping part further includes: The crescent groove is formed through the top of the adjusting plate, and the crescent groove and the assembly hole are concentric. The stud is fixedly installed at the top of the right-angle plate. The stud slides inside the crescent groove and extends to the periphery of its top. The locking nut is threadedly connected to the external thread of the stud.

[0006] As a preferred solution of the present invention, the gear clamping part further includes: The linear guide rails are evenly distributed and fixedly installed on the top of the upper housing, and their quantity and positions correspond to the right-angle plates one by one. The linear sliders are slidably installed outside the linear guide rails, and the top of the linear sliders is fixedly connected to the bottom of the horizontal section area of the right-angle plate.

[0007] As a preferred solution of the present invention, the gear clamping part further includes: The first cylinder barrels are evenly distributed and formed on the opposite surfaces of the lower housing and the upper housing, and their positions and quantities correspond to the right-angle plates one by one. The air distribution holes are formed in the middle of the opposite surfaces of the lower housing and the upper housing. The branch holes are evenly distributed and formed on the opposite surfaces of the lower housing and the upper housing. The positions of the branch holes correspond to the first cylinder barrels one by one, and the first cylinder barrels are connected to the air distribution holes through the branch holes. The internal thread hole is formed through the middle position of the top of the upper housing. The first piston is slidably installed inside the upper and lower first cylinder barrels. The piston rod is fixedly installed on the inner wall of the first piston and is concentric with the cylinder barrel. The piston rod extends to the outside of the cylinder barrel, and the end of the piston rod far from the first piston is fixedly connected to the inner side surface of the vertical section of the right-angle plate.

[0008] As a preferred solution of the present invention, the gear clamping part further includes: A sealing top cover is fixedly installed on the top of the second cylinder barrel; An air cylinder is fixedly installed on the top of the sealing top cover, and its output rod extends movably into the second cylinder barrel; A second piston is fixedly installed at the bottom of the output rod of the air cylinder, and its outer wall is slidably connected with the inner wall of the second cylinder barrel; A first joint is fixedly installed on the top of the converging channel; A second joint is fixedly installed on the top of the internal thread hole; A pressure-regulating electric control valve is fixedly installed on the side of the upper housing through a bracket. The output end of the first joint is connected to the input end of the pressure-regulating electric control valve through an air pipe, and the output end of the pressure-regulating electric control valve is connected to the input end of the second joint through an air pipe.

[0009] As a preferred solution of the present invention, the first valve hole is located inside the second cylinder barrel, the second valve hole is located inside the air suction channel, and a screwing nut is fixedly installed on the top of the valve rod.

[0010] As a preferred solution of the present invention, a spring gasket is provided between the lock nut and the top of the adjusting plate, and anti-slip threads are provided in the peripheral area of the opening at the top of the crescent groove.

[0011] As a preferred solution of the present invention, a sealing gasket is fixedly installed between the lower housing and the upper housing.

[0012] As a preferred solution of the present invention, a spring is sleeved on the periphery of the piston rod, and the spring is fixedly installed between the lower housing and the inner side surface of the vertical section of the right-angle plate.

[0013] Compared with the prior art, the beneficial effects of the present invention are: 1. In the present invention, through the switching use of the switching part, the present tooling can clamp the gear and the internal gear ring at the same time, and through the use of the local switching unit, the gear and the internal gear ring can be clamped in a mixed manner, and the overall flexibility of use is good, thus facilitating the mixed processing of gears of different models.

[0014] 2. In the present invention, by loosening the lock nuts at the top of the gear clamping part, the adjusting plate can be rotated along the rotation connection position of the ball bearing and the rotating shaft. When the adjusting plate rotates, the clamping block also rotates accordingly. During this period, the crescent groove slides along the outer wall of the lower housing, resulting in a change in the angle between the adjusting plate and the right-angle plate, and the initial distance between the multiple clamping blocks of the gear clamping part is adjusted, so as to cope with the clamping of gears and internal gear rings of different diameters. Brief Description of the Drawings

[0015] Figure 1 is a schematic structural diagram of the present invention Figure 1 ; Figure 2 is a schematic structural diagram of the present invention Figure 2 ; Figure 3 is a schematic structural diagram of the gear clamping part in the present invention; Figure 4 in the present invention Figure 3 expanded schematic structural diagram; Figure 5 in the present invention Figure 4 amplified schematic structural diagram of part A; Figure 6 is an expanded schematic structural diagram of the lower housing and the upper housing in the present invention; Figure 7 in the present invention Figure 4 amplified schematic structural diagram of part B; Figure 8 in the present invention Figure 2 partial schematic structural diagram; Figure 9 is a sectional schematic structural diagram of the fixing seat in the present invention; Figure 10 in the present invention Figure 9 amplified schematic structural diagram of part C.

[0016] In the figure: 100, tooling main body; 101, fixing seat; 102, lower housing; 103, upper housing; 104, right-angle plate; 105, adjusting plate; 106, clamping block; 107, bearing hole; 108, ball bearing; 109, rotating shaft; 1010, assembly hole; 1011, crescent groove; 1012, stud; 1013, locking nut; 1014, linear guide rail; 1015, linear slider; 1016, cylinder one; 1017, air distribution hole; 1018, branch hole; 1019, internal thread hole; 1020, piston one; 1021, piston rod; 1022, cylinder two; 1023, sealing top cover; 1024, air cylinder; 1025, piston two; 1026, air injection cavity channel; 1027, air suction cavity channel; 1028, confluence cavity channel; 1029, torsion hole; 1030, valve rod; 1031, valve hole one; 1032, valve hole two; 1033, screwing nut; 1034, joint one; 1035, joint two; 1036, pressure regulating electric control valve; 1037, spring; 200, sealing gasket. Detailed Description of the Invention

[0017] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0018] See also Figures 1 to 10 The technical solution provided by the present invention specifically includes the following embodiments: A gear fillet milling tool, comprising a tool body 100, the tool body 100 is used for clamping the bearing, the tool body 100 comprises a gear clamping part and a switching part, the gear clamping part comprises a fixed seat 101, a lower shell 102, an upper shell 103, a right angle plate 104, an adjustment plate 105, a clamping block 106, a bearing hole 107, a ball bearing 108, a rotating shaft 109, an assembly hole 1010, a crescent groove 1011, a stud 1012, and a locking nut 1013, the fixed seat 101 is fixedly installed on the processing table of the gear fillet milling machine, the lower shell 102 is fixedly installed on the top of the fixed seat 101 at an equal angle distribution, the upper shell 103 is fixedly installed on the top of the lower shell 102, the right angle plate 104 is slidably installed on the top of the upper shell 103 at an equal angle distribution, the adjustment plate 105 is rotatably installed on the top of the right angle plate 104, and the clamping block 106 is fixedly installed At one end of the top of the adjusting plate 105, a bearing hole 107 is opened at the top of the right-angle plate 104, a ball bearing 108 is fixedly installed inside the bearing hole 107, a rotating shaft 109 is fixedly installed on the inner wall of the ball bearing 108, an assembly hole 1010 is opened at the top of the adjusting plate 105, the inner wall of the assembly hole 1010 is fixedly connected to the upper part of the outer wall of the rotating shaft 109, a crescent groove 1011 is opened through the top of the adjusting plate 105, the crescent groove 1011 is concentric with the assembly hole 1010, a stud 1012 is fixedly installed on the top of the right-angle plate 104, the stud 1012 is slidably located inside the crescent groove 1011, and extends to the periphery of its top, a locking nut 1013 is threadedly screwed on the external thread of the stud 1012, a spring gasket is provided between the locking nut 1013 and the top of the adjusting plate 105, and an anti-slip pattern is provided in the outer peripheral area of the opening at the top of the crescent groove 1011.

[0019] Specifically, by loosening the locking nuts 1013 on the top of the gear clamping part, the adjustment plate 105 can be rotated along the rotational connection position of the ball bearing 108 and the rotating shaft 109. The rotation of the adjustment plate 105 also drives the clamping block 106 to rotate together. During this period, the crescent groove 1011 slides along the outer wall of the lower shell 102, causing the angle between the adjustment plate 105 and the right-angle plate 104 to change, and the initial distance between the multiple clamping blocks 106 of the gear clamping part is adjusted, so that it can cope with the clamping of gears of different diameters and inner ring gears.

[0020] Further, specifically referring to Figures 3 to 10 as shown in: The gear clamping part further includes a linear guide rail 1014, a linear slider 1015, a first cylinder barrel 1016, an air distribution hole 1017, a branch hole 1018, an internal thread hole 1019, a first piston 1020, a piston rod 1021, a sealing top cover 1023, a cylinder 1024, a second piston 1025, a first joint 1034, a second joint 1035, and a pressure regulating electronic control valve 1036. The linear guide rails 1014 are fixedly installed at equal angular intervals on the top of the upper housing 103, and their quantity and positions correspond to the right-angle plates 104 one by one. The linear slider 1015 is slidably installed on the periphery of the linear guide rail 1014, and the top of the linear slider 1015 is fixedly connected to the bottom of the horizontal section area of the right-angle plate 104. The first cylinder barrels 1016 are opened at equal angular intervals on the opposite surfaces of the lower housing 102 and the upper housing 103, and their positions and quantities correspond to the right-angle plates 104 one by one. The air distribution holes 1017 are opened in the middle of the opposite surfaces of the lower housing 102 and the upper housing 103. The branch holes 1018 are opened at equal angular intervals on the opposite surfaces of the lower housing 102 and the upper housing 103. The positions of the branch holes 1018 correspond to the first cylinder barrels 1016 one by one, and the first cylinder barrels 1016 are communicated with the air distribution holes 1017 through the branch holes 1018. The internal thread holes 1019 are penetrated and opened at the middle position of the top of the upper housing 103. The first pistons 1020 are slidably installed inside the upper and lower first cylinder barrels 1016. The piston rods 1021 are fixedly installed on the inner walls of the first pistons 1020 and are concentric with the first cylinder barrels 1016. The piston rods 1021 extend to the outside of the first cylinder barrels 1016. One end of the piston rod 1021 away from the first piston 1020 is fixedly connected to the inner side surface of the vertical section of the right-angle plate 104. The sealing top cover 1023 is fixedly installed on the top of the second cylinder barrel 1022. The cylinder 1024 is fixedly installed on the top of the sealing top cover 1023, and its output rod extends movably into the second cylinder barrel 1022. The second piston 1025 is fixedly installed at the bottom of the output rod of the cylinder 1024, and its outer wall is slidably connected with the inner wall of the second cylinder barrel 1022. The first joint 1034 is fixedly installed on the top of the converging cavity 1028. The second joint 1035 is fixedly installed on the top of the internal thread hole 1019. The pressure regulating electronic control valve 1036 is fixedly installed on the side of the upper housing 103 through a bracket. The output end of the first joint 1034 is connected to the input end of the pressure regulating electronic control valve 1036 through an air pipe. The output end of the pressure regulating electronic control valve 1036 is connected to the input end of the second joint 1035 through an air pipe.

[0021] Specifically, the output rod of the cylinder 1024 pushes the second piston 1025 downward to move, compressing the air inside the second cylinder barrel 1022 into the air injection chamber 1026. At this time, the first valve hole 1031 completely conducts the inside of the air injection chamber 1026, enabling the air inside the air injection chamber 1026 to completely conduct into the confluence chamber 1028. Then, it enters the pressure regulating electronic control valve 1036 through the first connector 1034. At this time, the air pressure inside the pressure regulating electronic control valve 1036 has not reached the set value, so the pressure regulating electronic control valve 1036 is in a conducting state, allowing the air entering the pressure regulating electronic control valve 1036 to be input into the second connector 1035 through its output end. Then, it is discharged into the air distribution holes 1017 through the internal thread hole 1019 and then discharged into the plurality of first cylinder barrels 1016 through the plurality of branch holes 1018 respectively, pushing the plurality of first pistons 1020 in the direction away from the air distribution holes 1017, thereby pushing the plurality of piston rods 1021 and the plurality of right-angle plates 104 to move together. The movement of the right-angle plate 104 is guided by the linear guide 1014 and the linear slider 1015, which can be more linear and stable. At the same time, the right-angle plate 104 also drives the adjusting plate 105 and the clamping blocks 106 to move together, causing the plurality of clamping blocks 106 to move outward and clamp tightly on the inner wall of the shaft hole of the gear, thereby clamping the gear to facilitate fillet milling.

[0022] Further, specifically refer to Figure 10 as shown in The switching part includes the second cylinder barrel 1022, the air injection chamber 1026, the air suction chamber 1027, the confluence chamber 1028, the torsion hole 1029, and the valve rod 1030. The air injection chamber 1026 is opened at the lower part of the inner wall of the second cylinder barrel 1022, the air suction chamber 1027 is opened at the upper part of the inner wall of the second cylinder barrel 1022, the confluence chamber 1028 is opened at the top of the fixed seat 101 and is communicated with the ends of the air injection chamber 1026 and the air suction chamber 1027. The torsion hole 1029 is opened at the top of the fixed seat 101 and penetrates through the middle of the second cylinder barrel 1022 and the air suction chamber 1027. The valve rod 1030 is rotatably installed inside the torsion hole 1029. A first valve hole 1031 and a second valve hole 1032 are penetrated and opened on the outer wall of the valve rod 1030. The included angle between the first valve hole 1031 and the second valve hole 1032 is 90 degrees. The first valve hole 1031 is located inside the second cylinder barrel 1022, and the second valve hole 1032 is located inside the air suction chamber 1027. A wrench nut 1033 is fixedly installed at the top of the valve rod 1030.

[0023] Specifically, by rotating the screw cap 1033, the valve stem 1030 is driven to rotate 90 degrees inside the torsion hole 1029, causing the first valve hole 1031 to cut off the inside of the air injection channel 1026, while the second valve hole 1032 completely conducts the inside of the air suction channel 1027. At this time, the output rod of the cylinder 1024 pushes the second piston 1025 downward, resulting in a negative pressure effect in the upper half region inside the second cylinder barrel 1022, and through the air suction channel 1027, the first joint 1034, the pressure regulating electric control valve 1036, the second joint 1035, the internal thread hole 1019, the air distribution hole 1017, and the branch hole 1018, it is transmitted to the inside of the first cylinder barrel 1016, causing the first piston 1020 to move in the direction close to the air distribution hole 1017, and through the connection of the piston rod 1021, driving the right-angle plate 104 to move together. Further, through the right-angle plate 104, the adjusting plate 105 and the clamping blocks 106 are driven to move together, so that the multiple clamping blocks 106 approach each other and are clamped on the outer wall of the internal gear ring, facilitating the clamping of the internal gear ring. And when it is necessary to clamp the gear and the internal gear ring together, rotate the screw cap 1033 that clamps the internal gear ring by 90 degrees, causing it to drive the valve stem 1030 to rotate inside the torsion hole 1029. The rotation of the valve stem 1030 drives the first valve hole 1031 and the second valve hole 1032 to rotate together, causing the first valve hole 1031 to cut off the inside of the air injection channel 1026. At the same time, the inside of the air suction channel 1027 is completely conducted through the second valve hole 1032. Then, during the process of the output rod of the cylinder 1024 pushing the second piston 1025 downward, the gear and the internal gear ring can be clamped synchronously, facilitating the clamping of gears of various models.

[0024] Further, specifically refer to Figure 4 as shown in A spring 1037 is sleeved on the periphery of the piston rod 1021, and the spring 1037 is fixedly installed between the lower housing 102 and the inner side surface of the vertical section of the right-angle plate 104.

[0025] Specifically, when the first piston 1020 drives the piston rod 1021 and the right-angle plate 104 to move, it will cause the spring 1037 to be stretched or compressed to store energy, thereby generating a reset potential energy for the right-angle plate 104. Further, after the processing is completed, the pressure regulating electric control valve 1036 is fully opened, so that the inside of the first piston 1020 returns to normal pressure, and the resilience of the spring 1037 is released, pushing the right-angle plate 104, the adjusting plate 105, the clamping blocks 106, the piston rod 1021 and the first piston 1020 to reset, facilitating subsequent continued use.

[0026] When a gear fillet milling tooling of this solution is working, it is divided into clamping the gear, the internal gear ring simultaneously and clamping them together. Specifically: When clamping the gear, the output rod of the air cylinder 1024 pushes the second piston 1025 downward to move, pressing the air inside the second cylinder barrel 1022 into the air injection chamber 1026. At this time, the first valve hole 1031 completely conducts the inside of the air injection chamber 1026, so that the air inside the air injection chamber 1026 completely conducts and enters the confluence chamber 1028, and then enters the pressure regulating electronic control valve 1036 through the first connector 1034. At this time, the air pressure inside the pressure regulating electronic control valve 1036 has not reached the set value, so the pressure regulating electronic control valve 1036 is in a conducting state, and the air entering the pressure regulating electronic control valve 1036 then enters the second connector 1035 through its output end. Then, it is discharged into the air distribution holes 1017 through the internal thread holes 1019, and then is discharged into the multiple first cylinder barrels 1016 through multiple branch holes 1018 respectively, pushing the multiple first pistons 1020 in the direction away from the air distribution holes 1017, thereby pushing the multiple piston rods 1021 and the multiple right-angle plates 104 to move together. The movement of the right-angle plate 104 is guided by the linear guide 1014 and the linear slider 1015, which can be more linear and stable. At the same time, the right-angle plate 104 also drives the adjusting plate 105 and the clamping blocks 106 to move together, so that the multiple clamping blocks 106 move outward and clamp on the inner wall of the shaft hole of the gear, thus clamping the gear to facilitate fillet milling; When clamping the internal gear ring, first rotate the screw cap 1033 to drive the valve rod 1030 to rotate 90 degrees along the inside of the torsion hole 1029, resulting in the first valve hole 1031 cutting off the inside of the air injection chamber 1026, while the second valve hole 1032 completely conducts the inside of the air suction chamber 1027. At this time, when the output rod of the air cylinder 1024 pushes the second piston 1025 downward, a negative pressure will be generated in the upper half area inside the second cylinder barrel 1022, and it is transmitted to the inside of the first cylinder barrel 1016 through the air suction chamber 1027, the first connector 1034, the pressure regulating electronic control valve 1036, the second connector 1035, the internal thread holes 1019, the air distribution holes 1017, and the branch holes 1018, so that the first piston 1020 moves in the direction close to the air distribution holes 1017, and drives the right-angle plate 104 to move together through the connection of the piston rod 1021. Further, the right-angle plate 104 drives the adjusting plate 105 and the clamping blocks 106 to move together, so that the multiple clamping blocks 106 move closer to each other and clamp on the outer wall of the internal gear ring; When clamping the gear and the internal gear ring together, rotate the screw cap 1033 corresponding to the clamped internal gear ring by 90 degrees, which drives the valve rod 1030 to rotate along the inside of the torsion hole 1029. The rotation of the valve rod 1030 drives the first valve hole 1031 and the second valve hole 1032 to rotate together, so that the first valve hole 1031 cuts off the inside of the air injection chamber 1026. At the same time, the air suction chamber 1027 is completely conducted through the second valve hole 1032. Immediately, during the process of the output rod of the air cylinder 1024 pushing the second piston 1025 downward, the gear and the internal gear ring can be clamped synchronously.

[0027] It should be noted that by loosening each locking nut 1013 at the top of the gear clamping part, the adjusting plate 105 can be rotated along the rotational connection position between the ball bearing 108 and the rotating shaft 109. When the adjusting plate 105 rotates, the clamping block 106 is also driven to rotate. During this period, the crescent groove 1011 slides along the outer wall of the lower housing 102, resulting in a change in the angle between the adjusting plate 105 and the right-angle plate 104. The initial distance between the multiple clamping blocks 106 of the gear clamping part is adjusted, so as to cope with the clamping of gears and internal gear rings of different diameters.

[0028] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention.

Claims

1. A gear fillet milling tooling, characterized in that: Comprising: A tooling main body (100) for clamping a bearing, the tooling main body (100) including a gear clamping part and a switching part; The gear clamping part includes: A fixed seat (101), fixedly installed on the machining table of a gear fillet milling machine; A lower housing (102), fixedly installed at the top of the fixed seat (101) in an equiangular distribution, and a sealing gasket (200) is fixedly installed between the lower housing (102) and the upper housing (103); An upper housing (103), fixedly installed at the top of the lower housing (102); Right-angle plates (104), slidably installed at the top of the upper housing (103) in an equiangular distribution; An adjusting plate (105), rotatably installed at the top of the right-angle plate (104); A clamping block (106), fixedly installed at one end of the top of the adjusting plate (105); The switching part includes: A second cylinder (1022), opened in the middle of the top of the fixed seat (101); An air injection cavity (1026), opened in the lower part of the inner wall of the second cylinder (1022); An air suction cavity (1027), opened in the upper part of the inner wall of the second cylinder (1022); A converging cavity (1028), opened in the top of the fixed seat (101) and communicating with the ends of the air injection cavity (1026) and the air suction cavity (1027); A torsion hole (1029), opened in the top of the fixed seat (101) and penetrating through the middle of the second cylinder (1022) and the air suction cavity (1027); A valve rod (1030), rotatably installed inside the torsion hole (1029), and a valve hole one (1031) and a valve hole two (1032) are penetrated and opened on the outer wall of the valve rod (1030), and the included angle between the valve hole one (1031) and the valve hole two (1032) is 90 degrees.

2. A gear fillet milling tooling according to claim 1, characterized in that: The gear clamping part further includes: A bearing hole (107), opened in the top of the right-angle plate (104); A ball bearing (108), fixedly installed inside the bearing hole (107); A rotating shaft (109), fixedly installed on the inner wall of the ball bearing (108); An assembly hole (1010), opened in the top of the adjusting plate (105), and the inner wall of the assembly hole (1010) is fixedly connected to the upper part of the outer wall of the rotating shaft (109).

3. A gear fillet milling tooling according to claim 2, characterized in that: The gear clamping part further includes: A crescent groove (1011), penetratingly opened in the top of the adjusting plate (105), and the crescent groove (1011) is concentric with the assembly hole (1010); A stud (1012), fixedly installed on the top of the right-angle plate (104), the stud (1012) slidably located inside the crescent groove (1011) and extending to the periphery of its top; A locking nut (1013), threadedly screwed on the external thread of the stud (1012).

4. A gear fillet milling tooling according to claim 3, characterized in that: The gear clamping part further includes: Linear guide rails (1014), fixedly installed at the top of the upper housing (103) in an equiangular distribution, and their quantity and positions correspond to the right-angle plates (104) one by one; The linear slider (1015) is slidably mounted around the linear guide rail (1014), and the top of the linear slider (1015) is fixedly connected to the bottom of the horizontal section area of the right-angle plate (104).

5. The gear fillet milling tooling according to claim 4, characterized in that: The gear clamping part further includes: The first cylinder barrel (1016) is equiangularly distributed and opened on the opposite surfaces of the lower housing (102) and the upper housing (103), and the position and quantity correspond to the right-angle plate (104) one by one; The air distribution hole (1017) is opened in the middle of the opposite surfaces of the lower housing (102) and the upper housing (103); The branch hole (1018) is equiangularly distributed and opened on the opposite surfaces of the lower housing (102) and the upper housing (103). The position of the branch hole (1018) corresponds to the first cylinder barrel (1016) one by one, and the first cylinder barrel (1016) is communicated with the air distribution hole (1017) through the branch hole (1018); The internal thread hole (1019) is penetrated and opened at the middle position of the top of the upper housing (103); The first piston (1020) is slidably mounted inside the upper and lower first cylinder barrels (1016); The piston rod (1021) is fixedly mounted on the inner wall of the first piston (1020) and is concentric with the first cylinder barrel (1016). The piston rod (1021) extends to the outside of the first cylinder barrel (1016), and one end of the piston rod (1021) far from the first piston (1020) is fixedly connected to the inner side surface of the vertical section of the right-angle plate (104).

6. The gear fillet milling tooling according to claim 5, characterized in that: The gear clamping part further includes: The sealing top cover (1023) is fixedly mounted on the top of the second cylinder barrel (1022); The air cylinder (1024) is fixedly mounted on the top of the sealing top cover (1023), and its output rod extends movably into the second cylinder barrel (1022); The second piston (1025) is fixedly mounted on the bottom of the output rod of the air cylinder (1024), and its outer wall is slidably connected with the inner wall of the second cylinder barrel (1022); The first joint (1034) is fixedly mounted on the top of the converging cavity (1028); The second joint (1035) is fixedly mounted on the top of the internal thread hole (1019); The pressure regulating electronic control valve (1036) is fixedly mounted on the side of the upper housing (103) through a bracket. The output end of the first joint (1034) is connected to the input end of the pressure regulating electronic control valve (1036) through an air pipe, and the output end of the pressure regulating electronic control valve (1036) is connected to the input end of the second joint (1035) through an air pipe.

7. The gear fillet milling tooling according to claim 6, characterized in that: The first valve hole (1031) is located inside the second cylinder barrel (1022), the second valve hole (1032) is located inside the air suction cavity (1027), and a screwing cap (1033) is fixedly mounted on the top of the valve rod (1030).

8. The gear fillet milling tooling according to claim 7, characterized in that: A spring washer is provided between the locking nut (1013) and the top of the adjusting plate (105), and anti-slip threads are provided in the peripheral area of the opening at the top of the crescent groove (1011).

9. A gear fillet milling tooling according to claim 8, wherein: A sealing gasket (200) is fixedly installed between the lower housing (102) and the upper housing (103).

10. A gear fillet milling tooling according to claim 9, wherein: A spring (1037) is sleeved on the outer periphery of the piston rod (1021), and the spring (1037) is fixedly installed between the lower housing (102) and the inner side surface of the vertical section of the right-angle plate (104).

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