Machine tool for machining tooth profile of cycloidal gear

Abstract

The invention discloses a machine tool for machining the tooth profile of a cycloidal gear, relates to the field of cycloidal gear machining equipment, and can solve the problems that in the prior art, a traditional machining machine tool cannot meet the machining requirement easily, the yield is low, and the rejection rate is high. The diameter of the outer edge of the grinding wheel is consistent with the diameter of a roller pin in the RV speed reducer, during working, the RV speed reducer drives the linkage crankshaft to drive the cycloidal gear to swing, and the cycloidal gear makes contact with the outer edge of the grinding wheel in a reciprocating circulation mode in the swing process, so that the tooth profile of the cycloidal gear is machined. According to the device, the matching of the standard cycloidal gear in the RV speed reducer and the roller pin in the standard cycloidal gear is accurately simulated, and then accurate grinding is achieved, so that the device can still machine cycloidal gear tooth profiles with the same precision and quality as those of the standard RV speed reducer under the condition that a high-precision expensive cycloidal grinding machine is not needed, and the investment cost of the device is reduced.

Description

Technical Field

[0001] The invention relates to the field of cycloid wheel processing equipment, and in particular to a machine tool for processing a cycloid wheel tooth profile. Background Art

[0002] For a long time, RV reducers in precision robots have played a vital role, especially in high-load and high-precision application scenarios. One of the core components of these RV reducers is the cycloid wheel, whose accuracy directly affects the overall performance and working efficiency of the RV reducer.

[0003] However, the complex geometry of the cycloid wheel requires extremely high processing precision. Traditional processing often fails to meet the processing requirements, resulting in low yield and high scrap rate. This not only increases production costs, but also prolongs the production cycle and affects the overall production efficiency. Summary of the invention

[0004] In order to solve the problem in the prior art that traditional machining machines are difficult to meet machining requirements, resulting in low yield and high scrap rate, the present application provides a machine tool for machining cycloid gear tooth profile to solve the above problem.

[0005] In order to achieve the above purpose, the technical solution adopted in this application is:

[0006] A machine tool for machining a cycloidal wheel tooth profile, comprising a CNC grinding machine component, a grinding component and a cycloidal wheel machining component, wherein the CNC grinding machine component comprises a CNC cylindrical grinder, wherein a machining chamber is provided inside the CNC cylindrical grinder, and the grinding component and the cycloidal wheel machining component are both detachably connected inside the machining chamber;

[0007] The cycloid wheel processing component includes a base table, a second drive motor, a mounting seat and a rotating member, the base table is screwed to the inner bottom surface of the processing chamber, the second drive motor is installed inside the base table, the mounting seat is installed on the top of the base table, and the rotating member is installed in a mounting groove opened inside the mounting seat and is drivingly connected to the second drive motor;

[0008] An eccentric wheel and a cycloidal wheel are connected to the inside and outside of the rotating member respectively. The eccentric wheel is used to assist in driving the cycloidal wheel to swing, and the grinding component is located within the swing range of the cycloidal wheel.

[0009] As a further improvement of the present invention, the base platform includes a base platform and a fixed frame, the base platform is screwed to the inner bottom surface of the processing chamber, the fixed frame is screwed to the top surface of the base platform, the second drive motor is installed inside the fixed frame, and the drive shaft of the second drive motor passes through the fixed frame and the mounting seat and is driven and connected to the rotating member.

[0010] As a further improvement of the present invention, the rotating member includes an RV reducer, a bracket and an upper cover plate, the RV reducer is drivingly connected to the second drive motor, the bracket is rotationally connected to the RV reducer, and the upper cover plate is installed on the top of the bracket;

[0011] A pair of linked crankshafts are also arranged inside the RV reducer, the eccentric wheel is sleeved on the linked crankshafts, and the cycloid wheel is sleeved on the outer wall of the eccentric wheel through a bearing.

[0012] As a further improvement of the present invention, one end of the linkage crankshaft is drivingly connected to the inside of the RV reducer, and the other end of the linkage crankshaft passes through a through hole opened in the lower support of the bracket and is rotatably connected to the upper cover plate.

[0013] As a further improvement of the present invention, at least four eccentric wheels are provided, and each two are grouped and sleeved on the upper outer wall of a single linked crankshaft. At least two cycloid wheels are provided, and connecting holes are opened inside. The cycloid wheels are rotatably connected to the outer wall of the eccentric wheel through a needle bearing arranged inside the connecting hole.

[0014] As a further improvement of the present invention, the two cycloid wheels sleeved on the upper end of the linkage crankshaft have the same phase.

[0015] As a further improvement of the present invention, the grinding component includes a first drive motor, a grinding wheel and a fixing hole. The first drive motor is screwed and fixed to the inner wall surface of the processing chamber. The grinding wheel is provided with a fixing hole. The grinding wheel is driven and connected to the first drive motor through the fixing hole.

[0016] As a further improvement of the present invention, the grinding wheel is arranged vertically opposite to the cycloidal wheel, the outer edge of the grinding wheel is a grinding wheel edge, and is periodically in conflict with the cycloidal wheel, and the outer edge diameter of the grinding wheel is consistent with the needle roller diameter inside the RV reducer.

[0017] As a further improvement of the present invention, the CNC grinding machine component also includes a control box, which is fixedly mounted on the outer wall of the CNC external cylindrical grinder, and the grinding component and the cycloid wheel processing component are both electrically connected to the control box.

[0018] Compared with the prior art, the technical solution provided by the present invention has the following advantages and effects:

[0019] 1. The machine tool in this application uses a CNC external cylindrical grinder as the core processing equipment. By equipping it with grinding parts and cycloidal wheel processing parts, it can realize the processing of cycloidal wheel tooth profiles. This allows the equipment to process cycloidal wheel tooth profiles with the same accuracy and quality as standard RV reducers without the need for high-precision and expensive cycloidal grinders, reducing equipment investment costs. When processing cycloidal wheel tooth profiles, the equipment does not require complex programming of the cycloidal tooth profiles. The operation of the equipment only depends on the coordination of the grinding wheel of the CNC external cylindrical grinder and the cycloidal wheel processing parts, which simplifies the operation process and reduces dependence on programming, making the operation of the machine tool more intuitive and simple.

[0020] 2. In this application, since there is point contact between the grinding wheel and the workpiece, the grinding wheel can naturally envelop the required tooth profile, which greatly reduces the wear during the processing and improves the stability of the processing. The outer edge diameter of the grinding wheel is consistent with the diameter of the needle roller inside the RV reducer. When working, the RV reducer drives the linkage crankshaft to drive the cycloid wheel to swing. During the swinging process, the cycloid wheel reciprocates and contacts the outer edge of the grinding wheel, thereby accurately simulating the coordination between the standard cycloid wheel inside the RV reducer and its internal needle roller, thereby achieving precise grinding. In the overall processing process, the machine tool does not need to frequently perform grinding wheel shaping. After wear, only simple adjustments are required to continue processing. Since there is no need to shape the grinding wheel and only simple adjustments are required to deal with grinding wheel wear, the maintenance and operation costs of this equipment are greatly reduced. At the same time, the stable processing process and high yield rate also enable the equipment to efficiently use time during the production process and reduce the production cycle.

[0021] 3. In this application, due to the cooperation of the second drive motor and the linkage crankshaft, the rotating part can effectively drive the cycloid wheel to perform precise revolution and eccentric swing, accurately simulating the cooperation between the standard cycloid wheel and the needle roller inside the RV reducer, ensuring the accuracy of the tooth profile processing. In addition, the stable grinding parts can ensure high quality and high yield while being efficient. In the design of the equipment, the cycloid wheel processing parts and the grinding parts can be disassembled, which not only helps to simplify the maintenance of the equipment, but also facilitates the replacement of parts, reduces the maintenance time, and improves the normal operation time of the machine tool. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For those skilled in the art, other drawings can be obtained based on these drawings without paying any creative labor.

[0023] Figure 1 It is an axonometric view of the present invention.

[0024] Figure 2 It is the front view of the present invention.

[0025] Figure 3 It is a front view of the cooperation between the grinding wheel and the cycloidal wheel processing component in the present invention.

[0026] Figure 4 It is an exploded view of the cooperation between the grinding wheel and the cycloidal wheel processing component in the present invention.

[0027] Figure 5 yes Figure 4 A partial enlarged view of area A in the middle.

[0028] Figure 6 It is a front view of the cooperation between the grinding wheel and the cycloid wheel processing component in the present invention;

[0029] Figure 7 It is a top view of the cooperation between the grinding wheel and the cycloid wheel processing component in the present invention;

[0030] Figure 8 It is a front view of the cooperation of some parts of the grinding wheel and the cycloidal wheel processing component in the present invention;

[0031] Fig. 9 It is a top view of the cooperation of some parts of the grinding wheel and the cycloidal wheel processing component in the present invention;

[0032] Fig.10 It is an axonometric view of the RV reducer in the present invention.

[0033] In the figure: 10, CNC grinding machine parts; 110, CNC cylindrical grinder; 120, control box; 130, processing chamber; 20, grinding parts; 210, first drive motor; 220, grinding wheel; 230, fixing hole; 30, cycloid wheel processing parts; 310, base; 320, fixing frame; 330, second drive motor; 340, mounting seat; 350, RV reducer; 360, bracket; 370, upper cover plate; 380, linkage crankshaft; 40, eccentric wheel; 50, cycloid wheel; 60, connecting hole. DETAILED DESCRIPTION

[0034] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. The components of the embodiments of the present application described and shown in the drawings here can be arranged and designed in various different configurations.

[0035] Therefore, the following detailed description of the embodiments of the present application provided in the accompanying drawings is not intended to limit the scope of the present application for which protection is sought, but merely represents selected embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the present application.

[0036] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0037] In the description of this application, it should be noted that if the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", etc. appear, the orientation or position relationship indicated is based on the orientation or position relationship shown in the drawings, or the orientation or position relationship in which the product of the application is usually placed when in use. It is only for the convenience of describing this application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as a limitation on this application. In addition, if the terms "first", "second", etc. appear in the description of this application, they are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0038] In addition, if the terms "horizontal" or "vertical" appear in the description of this application, it does not mean that the components are required to be absolutely horizontal or suspended, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0039] In the description of this application, it should also be noted that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" 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 it can be indirectly connected through an intermediate medium, or it can be the internal connection of two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0040] Example:

[0041] A machine tool for processing the tooth profile of a cycloidal wheel 50, comprising a CNC grinding machine component 10, a grinding component 20 and a cycloidal wheel processing component 30, wherein the CNC grinding machine component 10 comprises a CNC cylindrical grinder 110, wherein a processing chamber 130 is provided inside the CNC cylindrical grinder 110, and the grinding component 20 and the cycloidal wheel processing component 30 are both detachably connected inside the processing chamber 130;

[0042] The cycloid wheel processing component 30 includes a base platform 310, a second drive motor 330, a mounting seat 340 and a rotating member, wherein the base platform 310 is screwed to the inner bottom surface of the processing chamber 130, the second drive motor 330 is installed inside the base platform 310, the mounting seat 340 is installed on the top of the base platform 310, and the rotating member is installed in a mounting groove provided inside the mounting seat 340 and is drivingly connected to the second drive motor 330;

[0043] An eccentric wheel 40 and a cycloidal wheel 50 are connected to the inside and outside of the rotating member respectively. The eccentric wheel 40 is used to assist in driving the cycloidal wheel 50 to swing. The grinding component 20 is located within the swing range of the cycloidal wheel 50 .

[0044] It is explained that a processing room 130 is provided inside the machine tool, which is the area for specific processing. The processing room 130 has enough space for the installation of the grinding component 20 and the cycloidal wheel processing component 30, and provides a suitable working environment to complete complex processing tasks, wherein the cycloidal wheel processing component 30 can be adjusted in height by the machine tool to meet the processing requirements of cycloidal wheels 50 of different sizes, the second drive motor 330 is connected to the base 310 through a transmission mechanism, and can provide a stable power output to ensure the stability and accuracy of the cycloidal wheel 50 during processing, the mounting seat 340 is designed to be detachable, which is convenient for replacement or maintenance when necessary, and the rotating part is connected to the second drive motor 330 to achieve precise power transmission.

[0045] Specifically, within the swing range of the cycloid wheel 50, the grinding component 20 can perform precise grinding processing on the cycloid wheel 50. The motion trajectory of the cycloid wheel 50 is consistent with the swing trajectory of the standard cycloid wheel inside the RV reducer 350, ensuring the uniformity and consistency during the grinding process, wherein the eccentric wheel 40 is connected to the second drive motor 330 through a rotating member to assist in driving the cycloid wheel 50 to swing. The cycloid wheel 50 is the processing object of the machine tool. The cycloid wheel 50 can have a consistent swing trajectory with the standard cycloid wheel inside the RV reducer 350. With the assistance of the grinding component 20 and the eccentric wheel 40, it can complete the movement on a specific trajectory to ensure the processing of accurate tooth profiles.

[0046] Combined with the accompanying drawings Figure 1-Figure 10 As shown, the base platform 310 includes a base 310 and a fixed frame 320, the base 310 is screwed to the inner bottom surface of the processing chamber 130, the fixed frame 320 is screwed to the top surface of the base 310, the second drive motor 330 is installed inside the fixed frame 320, and the drive shaft of the second drive motor 330 passes through the fixed frame 320 and the mounting seat 340 and is driven and connected to the rotating member.

[0047] It is explained that in the structural design of the base platform 310, the combination of the base platform 310 and the fixing frame 320 not only ensures the stability of the base platform 310, but also makes the entire structure more solid and reliable through the screw connection. The fixing frame 320 is screwed to the top surface of the base platform 310, providing a stable installation platform for the second drive motor 330, ensuring the stability of the motor during operation, thereby ensuring the stability of the power output.

[0048] Specifically, the second drive motor 330 is the core power source of the cycloid wheel processing component 30, and is directly connected to the rotating member. This design not only simplifies the transmission structure, reduces energy loss, but also improves the transmission efficiency. By accurately controlling the speed and torque of the second drive motor 330, it is possible to achieve precise control of the rotating member of the cycloid wheel 50, thereby achieving fine processing of the cycloid tooth profile.

[0049] Combined with the accompanying drawings Figure 1-Figure 10 As shown, the rotating member includes an RV reducer 350, a bracket 360 and an upper cover 370, the RV reducer 350 is drivingly connected to the second drive motor 330, the bracket 360 is rotationally connected to the RV reducer 350, and the upper cover 370 is installed on the top of the bracket 360;

[0050] A pair of linked crankshafts 380 are further provided inside the RV reducer 350 , the eccentric wheel 40 is sleeved on the linked crankshafts 380 , and the cycloid wheel 50 is sleeved on the outer wall of the eccentric wheel 40 via a bearing.

[0051] It is explained that the function of the RV reducer 350 is to reduce speed and provide stable power transmission. The bracket 360 and the RV reducer 350 are connected by rotation to realize axial transmission. The second drive motor 330 is connected to the RV reducer 350. The second drive motor 330 is responsible for providing power for the RV reducer 350. A pair of linked crankshafts 380 are arranged inside the RV reducer 350. Their function is to transmit power to other components through internal mechanisms. The eccentric wheel 40 is a rotating element with an eccentric shaft. In the present application, the eccentric wheel 40 is sleeved on the linked crankshaft 380 and is responsible for guiding the cycloid wheel 50 to perform eccentric movement.

[0052] Specifically, the cycloid wheel 50 is sleeved on the outer wall of the eccentric wheel 40 through a bearing, and through the bearing connection, it can generate corresponding rotation or swing under the movement of the eccentric wheel 40. The use of the RV reducer 350 greatly improves the transmission ratio, making the rotation of the cycloid wheel 50 more stable and accurate. The cooperation between the eccentric wheel 40 and the linkage crankshaft 380 enables the cycloid wheel 50 to accurately simulate the cooperation between the standard cycloid wheel and the needle roller inside the RV reducer 350, thereby achieving precise grinding, thereby ensuring the accuracy of the tooth profile processing.

[0053] Combined with the accompanying drawings Figure 1-Figure 10 As shown, one end of the linkage crankshaft 380 is transmission-connected to the inside of the RV reducer 350, and the other end of the linkage crankshaft 380 passes through the through hole opened at the bottom of the bracket 360 and is rotatably connected to the upper cover plate 370. At least four eccentric wheels 40 are provided, and each two are grouped together and sleeved on the upper outer wall of a single linkage crankshaft 380. At least two cycloidal wheels 50 are provided, and a connecting hole 60 is opened inside. The cycloidal wheel 50 is rotatably connected to the outer wall of the eccentric wheel 40 through a needle bearing arranged inside the connecting hole 60, and the two cycloidal wheels 50 sleeved on the upper end of the linkage crankshaft 380 have the same phase.

[0054] It is explained that the eccentric wheel 40 is connected to the linkage crankshaft 380 and is responsible for guiding the cycloid wheel 50 to perform eccentric movement, ensuring that the cycloid wheel 50 can swing along the eccentric trajectory. The motion trajectory of the cycloid wheel 50 matches the motion trajectory of the standard cycloid wheel inside the RV reducer 350. The outer wall of the cycloid wheel 50 is connected to the eccentric wheel 40 through a needle bearing and can perform precise rotation and swing. The RV reducer 350 is responsible for providing stable power transmission to ensure stable rotation of the cycloid wheel 50. The linkage crankshaft 380 arranged inside it can effectively transmit power to the eccentric wheel 40, thereby driving the cycloid wheel 50 to rotate.

[0055] Specifically, due to the auxiliary effect of the eccentric wheel 40, the cycloid wheel 50 can move on a precise trajectory, ensuring a swing trajectory consistent with the standard cycloid wheel inside the RV reducer 350. At least four eccentric wheels 40 are provided, and each two are sleeved on the upper outer wall of a single linkage crankshaft 380 in a group. Such a design not only increases the stability of the swing of the cycloid wheel 50, but also enables the precise swing of the cycloid wheel 50 through the eccentric movement of the eccentric wheel 40. At the same time, at least two cycloid wheels 50 are provided, and a connecting hole 60 is opened inside. The needle bearing provided inside the connecting hole 60 is rotatably connected to the outer wall of the eccentric wheel 40, ensuring the precise fit between the cycloid wheel 50 and the eccentric wheel 40. The two cycloid wheels 50 sleeved on the upper end of the linkage crankshaft 380 have the same phase, ensuring the synchronization of the cycloid wheel 50 during the movement process, thereby ensuring the accuracy and consistency of the tooth profile processing.

[0056] Combined with the accompanying drawings Figure 1-Figure 10 As shown, the grinding component 20 includes a first driving motor 210, a grinding wheel 220 and a fixing hole 230. The first driving motor 210 is screwed and fixed to the inner wall surface of the processing chamber 130. The grinding wheel 220 is provided with a fixing hole 230. The grinding wheel 220 is driven and connected to the first driving motor 210 through the fixing hole 230.

[0057] To illustrate, the grinding component 20 includes three main parts: a first drive motor 210, a grinding wheel 220 and a fixing hole 230. These parts work together to complete the grinding or grinding task. The first drive motor 210 is fixed to the inner wall surface of the processing chamber 130 by screwing. The screw connection means that the motor is firmly installed at a specific position in the processing chamber 130 to ensure the stable operation of the motor. The first drive motor 210 is responsible for providing a rotational torque to drive the rotation of the grinding wheel 220. The grinding wheel 220 is provided with a fixing hole 230, which is the connection point between the grinding wheel 220 and the first drive motor 210. Through the fixing hole 230, the grinding wheel 220 can be driven and connected with the first drive motor 210, that is, when the motor rotates, the grinding wheel 220 also rotates. The grinding wheel 220 is the component that actually performs the grinding operation, and its outer edge is the grinding wheel edge. The grinding wheel edge completes the material grinding work by contacting the workpiece to be processed.

[0058] Specifically, the grinding wheel 220 and the cycloidal wheel 50 are arranged vertically opposite to each other. It plays a specific auxiliary role in the grinding process. The outer edge (grinding wheel edge) of the grinding wheel 220 and the cycloidal wheel 50 will periodically conflict during the working process. During the grinding process, the first driving motor 210 drives the grinding wheel 220 to rotate, and the grinding wheel edge of the grinding wheel 220 periodically contacts the cycloidal wheel 50, thereby achieving uniform grinding of the tooth profile of the cycloidal wheel 50.

[0059] It is worth noting that the grinding wheel 220 is vertically opposed to the cycloidal wheel 50, the outer edge of the grinding wheel 220 is a grinding wheel edge, and is periodically in conflict with the cycloidal wheel 50, and the outer edge diameter of the grinding wheel 220 is consistent with the needle roller diameter inside the RV reducer 350.

[0060] It is further worth mentioning that, due to the point contact between the grinding wheel 220 and the workpiece, the grinding wheel 220 can naturally envelop the required tooth profile, which greatly reduces the wear during the processing and improves the processing stability. The outer edge diameter of the grinding wheel 220 is consistent with the diameter of the needle roller inside the RV reducer 350. When working, the RV reducer 350 drives the linkage crankshaft 380 to drive the cycloidal wheel 50 to swing. During the swinging process, the cycloidal wheel 50 reciprocates and contacts the outer edge 220 of the grinding wheel, thereby accurately simulating the coordination between the standard cycloidal wheel and the needle roller inside the RV reducer 350, thereby achieving precise grinding. The coordination between the second drive motor 330 and the linkage crankshaft 380 in the present application enables the eccentric wheel 40 to effectively drive the cycloidal wheel 50 to perform precise revolution and eccentric swing, accurately simulating the coordination between the standard cycloidal wheel and the needle roller inside the RV reducer 350, and ensuring the accuracy of the tooth profile processing. With the stable grinding component 20, it is possible to ensure high quality and high yield while being efficient. In the design of the equipment, the cycloid wheel processing component 30 (including the base table 310, the drive motor and the rotating parts) and the grinding component 20 are both detachable, which not only helps to simplify the maintenance of the equipment, but also facilitates the replacement of components, reduces the maintenance time, and improves the normal operation time of the machine tool.

[0061] Combined with the accompanying drawings Figure 1-Figure 10 As shown, the CNC grinding machine component 10 further includes a control box 120 , which is fixedly mounted on the outer wall of the CNC cylindrical grinder 110 , and the grinding component 20 and the cycloid wheel processing component 30 are both electrically connected to the control box 120 .

[0062] Working principle:

[0063] During the machining process, the operator overlaps and installs the two cycloid wheel 50 blanks, and then starts the first drive motor 210 and the second drive motor 330. The first drive motor 210 drives the grinding wheel 220 to rotate, and the second drive motor 330 provides power by driving the RV reducer 350. While the RV reducer 350 is running at a constant speed, it drives its internal linkage crankshaft 380 to move, thereby driving the eccentric wheel 40 to perform eccentric movement. Since the two cycloid wheel 50 blanks are connected to the eccentric wheel 40 through needle bearings, when the eccentric wheel 40 performs eccentric movement, the two cycloid wheel 50 blanks also perform eccentric movement, and their movement trajectories are consistent with the trajectory of the standard cycloid wheel inside the RV reducer 350.

[0064] During this process, the outer edge of the grinding wheel 220 contacts and grinds the tooth profile of the cycloidal wheel 50, wherein the outer edge diameter of the grinding wheel 220 is consistent with the diameter of the internal needle roller of the RV reducer 350, thereby ensuring the processing accuracy. While working, the two cycloidal wheel 50 blanks reciprocate and intersect with the grinding wheel 220, thereby forming an intersection trajectory with the standard cycloidal wheel and the internal needle roller inside the RV reducer 350, thereby achieving precise processing of the tooth profile of the cycloidal wheel 50.

[0065] The above description is only the preferred embodiment of the present application and is not intended to limit the present application. For those skilled in the art, the present application may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A machine tool for machining a cycloid gear profile, characterized in that: The invention comprises a numerically controlled grinding machine component (10), a grinding component (20) and a cycloidal wheel processing component (30), wherein the numerically controlled grinding machine component (10) comprises a numerically controlled external cylindrical grinding machine (110), a processing chamber (130) is provided inside the numerically controlled external cylindrical grinding machine (110), and the grinding component (20) and the cycloidal wheel processing component (30) are both detachably connected inside the processing chamber (130); The cycloid wheel processing component (30) comprises a base platform, a second drive motor (330), a mounting seat (340) and a rotating member, the base platform is screwed to the inner bottom surface of the processing chamber (130), the second drive motor (330) is installed inside the base platform, the mounting seat (340) is installed on the top of the base platform, and the rotating member is installed in a mounting groove provided inside the mounting seat (340) and is drivingly connected to the second drive motor (330); An eccentric wheel (40) and a cycloidal wheel (50) are respectively connected inside and outside the rotating member, and the eccentric wheel (40) is used to assist in driving the cycloidal wheel (50) to swing, and the grinding component (20) is located within the swinging range of the cycloidal wheel (50).

2. A machine tool for machining a cycloid gear tooth profile according to claim 1, characterized in that: The base platform includes a base (310) and a fixing frame (320), wherein the base (310) is screwed to the inner bottom surface of the processing chamber (130), and the fixing frame (320) is screwed to the top surface of the base (310), and the second drive motor (330) is installed inside the fixing frame (320), and the drive shaft of the second drive motor (330) passes through the fixing frame (320) and the mounting seat (340) and is drivingly connected to the rotating member.

3. A machine tool for machining cycloid gear tooth profile according to claim 2, characterized in that: The rotating member comprises an RV reducer (350), a bracket (360) and an upper cover plate (370), wherein the RV reducer (350) is drivingly connected to the second drive motor (330), the bracket (360) is rotationally connected to the RV reducer (350), and the upper cover plate (370) is installed on the top of the bracket (360); A pair of linked crankshafts (380) are also provided inside the RV reducer (350), the eccentric wheel (40) is sleeved on the linked crankshafts (380), and the cycloid wheel (50) is sleeved on the outer wall of the eccentric wheel (40) via a bearing.

4. A machine tool for machining cycloid gear tooth profile according to claim 3, characterized in that: One end of the linkage crankshaft (380) is drivingly connected to the inside of the RV reducer (350), and the other end of the linkage crankshaft (380) passes through a through hole provided at the bottom of the bracket (360) and is rotatably connected to the upper cover plate (370).

5. A machine tool for machining cycloid gear profile according to claim 4, characterized in that: At least four eccentric wheels (40) are provided, and each two are set together and sleeved on the upper outer wall of a single linked crankshaft (380). At least two cycloid wheels (50) are provided, and a connecting hole (60) is opened inside. The cycloid wheels (50) are rotatably connected to the outer wall of the eccentric wheel (40) through a needle bearing provided inside the connecting hole (60).

6. A machine tool for machining cycloid gear tooth profile according to claim 5, characterized in that: The two cycloid wheels (50) sleeved on the upper end of the linkage crankshaft (380) have the same phase.

7. A machine tool for machining cycloid gear tooth profile according to claim 6, characterized in that: The grinding component (20) comprises a first driving motor (210), a grinding wheel (220) and a fixing hole (230); the first driving motor (210) is screwed and fixed to the inner wall surface of the processing chamber (130); the grinding wheel (220) is provided with a fixing hole (230); the grinding wheel (220) is drivingly connected to the first driving motor (210) through the fixing hole (230).

8. A machine tool for machining cycloid gear profile according to claim 7, characterized in that: The grinding wheel (220) is arranged vertically opposite to the cycloidal wheel (50), the outer edge of the grinding wheel (220) is a grinding wheel edge, and is periodically in contact with the cycloidal wheel (50), and the outer edge diameter of the grinding wheel (220) is consistent with the diameter of the needle roller inside the RV reducer (350).

9. A machine tool for machining a cycloid gear profile according to any one of claims 1 to 8, characterized in that: The CNC grinding machine component (10) further comprises a control box (120), wherein the control box (120) is fixedly mounted on the outer wall of the CNC external cylindrical grinding machine, and the grinding component (20) and the cycloid wheel processing component (30) are both electrically connected to the control box (120).

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