Angular displacement mechanism of a numerical control gear grinding machine

Abstract

The utility model discloses a swing angle mechanism of numerical control gear grinding machine, including the chassis and swing angle mechanism, the inner side wall of chassis is connected with angle turntable connecting plate, and the top of angle turntable connecting plate is detachably connected with slide rail A, and the surface of slide rail A is slidably connected with guide seat A, and the top of guide seat A is connected with swing angle in and out panel, the utility model discloses through swing angle motor can drive the rotation of abrasive disc piece to any preset angle, and abrasive disc piece can polish the gear teeth on the gear surface, and the consistency and accuracy of angle grinding are improved, and then the cost is reduced while the polishing accuracy is improved, and the efficiency is improved, through drive mechanism adopts the belt drive structure of " abrasive disc motor - transmission spare A - transmission belt - transmission spare B", and the surface smoothness of grinding is improved, and the workpiece rejection rate is reduced, through the cooperation of horizontal adjustment level and front and rear feeding level, the horizontal position coarse adjustment of swing angle mechanism is provided with millimeter level front and rear feeding accuracy for abrasive disc piece, and is suitable for different grinding process scene.

Description

Technical Field

[0001] This utility model relates to the field of CNC gear grinding machine technology, specifically to a swing angle mechanism for a CNC gear grinding machine. Background Technology

[0002] Gears are common mechanical components used to transmit power and motion. They consist of a disc or cylinder with multiple toothed slots and are usually meshed with other gears. A CNC gear grinding machine is a machine tool that uses a grinding wheel as the abrasive to machine cylindrical gears or certain types of gears, such as helical gears and bevel gears, by machining the tooth surfaces of cutting tools. CNC gear grinding machines are mainly used to eliminate deformation after heat treatment and improve gear precision.

[0003] In existing technologies, traditional CNC gear grinding machines typically use gear meshing or hydraulic drive to adjust the grinding wheel angle. The drive assembly and grinding power assembly are independently configured, requiring manual calibration or multi-stage transmission mechanisms to maintain their relative positions during angle adjustment. Furthermore, the angle adjustment range is limited by the mechanical structure, allowing only fixed-gear angle switching. However, gear meshing introduces backlash error, and hydraulic drive experiences pressure fluctuations, resulting in low accuracy in angle adjustment, making it difficult to meet the precision requirements of complex tooth profiles (such as helical and bevel gears) for grinding wheel angles. Simultaneously, the independently configured drive assembly and grinding power assembly are prone to relative positional misalignment during angle switching, causing unstable grinding power transmission, which in turn affects tooth surface machining accuracy and increases scrap rate. Moreover, the fixed-gear angle adjustment method lacks flexibility; frequent changes of fittings are necessary to meet different tooth profile machining requirements, extending the processing cycle, increasing equipment investment and production costs, and reducing overall processing efficiency.

[0004] In view of this, we have introduced a swing angle mechanism for a CNC gear grinding machine. Utility Model Content

[0005] The purpose of this invention is to provide a tilting angle mechanism for a CNC gear grinding machine to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a swing angle mechanism for a CNC gear grinding machine, comprising: a machine housing and a swing angle mechanism;

[0007] An angle turntable connecting plate is connected to the inner side wall of the chassis. A slide rail A is detachably connected to the top of the angle turntable connecting plate. A guide seat A is slidably attached to the surface of the slide rail A. An angle advance / retreat panel is connected to the top of the guide seat A.

[0008] The swing angle mechanism is located at the top of the swing angle advance and retreat panel. The swing angle motor, swing angle rotating component and grinding wheel of the swing angle mechanism are rotated so that the swing angle motor drives the swing angle rotating component and grinding wheel to rotate, so that the grinding wheel rotates to different angles.

[0009] The swing mechanism includes a swing motor with a motor swing seat connected to its surface, a base plate connected to the bottom of the motor swing seat, a guide seat B connected to the bottom of the base plate, a guide rail B on the inner side of the guide seat B, and the guide rail B connected to the top of the swing angle advance / retreat panel. The output end of the swing motor is connected to a rotating shaft seat, the swing angle rotating component is connected to the surface of the rotating shaft seat, and a grinding wheel is connected to the side of the swing angle rotating component.

[0010] Preferably, a rotating connecting plate is connected to the top of the rotating shaft seat, a motor plate is connected to the top of the rotating connecting plate, and a driving mechanism is provided on the top of the motor plate. The grinding wheel motor of the driving mechanism drives the transmission component A, the transmission belt and the transmission component B to drive the grinding wheel to rotate.

[0011] Preferably, the grinding wheel motor is detachably connected to the top of the motor plate, transmission component A is connected to the output end of the grinding wheel motor, transmission component B is connected to the side of the oscillating rotating component, and a transmission belt is sleeved between transmission component A and transmission component B. Transmission component A is connected to the grinding wheel through a rotating shaft. The detachable connection of the grinding wheel motor facilitates maintenance and replacement, the flexible transmission of the transmission belt can buffer the grinding impact, and the grinding wheel speed can be flexibly adjusted by replacing transmission components A and B of different specifications to adapt to the grinding requirements of workpieces of different materials.

[0012] Preferably, an adjustment mechanism is provided between the base plate and the swing angle advance / retreat panel. The drive motor of the adjustment mechanism drives the lead screw seat and the base plate to move, so that the base plate moves back and forth.

[0013] Preferably, the adjustment mechanism includes a positioning seat connected to one side of the top of the swing angle advance / retreat panel, a drive motor connected to the other side of the top of the swing angle advance / retreat panel, a lead screw connected between the output end of the drive motor and the positioning seat, a lead screw seat screwed onto the surface of the lead screw, and the lead screw seat connected to the bottom of the base plate; the positioning seat ensures that the lead screw is installed firmly, and the transmission structure of "drive motor-lead screw-lead screw seat" converts rotational motion into linear motion, with high transmission efficiency and high positioning accuracy, effectively avoiding position deviation during the feeding process.

[0014] Preferably, a swivel tooth motor is connected to the side of the angle turntable connecting plate, and a tooth-shifting assembly is provided inside the housing on one side of the angle turntable connecting plate.

[0015] Preferably, a protective plate is provided on one side of the surface of the motor swing bracket; the protective plate can effectively prevent iron filings, oil stains and other impurities generated during the grinding process from splashing into the swing motor, rotating shaft and other core components, avoiding mechanical jamming or electrical failure, while protecting the safety of operators and extending the service life of the mechanism.

[0016] Preferably, support bases are connected to the four corners of the bottom of the chassis; the support bases provide stable horizontal support for the chassis, effectively absorb the vibration generated during the grinding process, avoid the machine body shaking and affect the processing accuracy, and the height can be adjusted according to the site conditions to ensure that the equipment is installed flat.

[0017] Compared with the prior art, the beneficial effects of this utility model are:

[0018] (1) The output end of the swivel motor drives the rotating shaft seat to rotate. The swivel rotating part is fixed on the surface of the rotating shaft seat and rotates synchronously with the rotating shaft seat, thereby driving the grinding wheel connected on the side to swing at an angle. Since the rotating connecting plate is fixed to the rotating shaft seat, the motor plate rotates synchronously with the rotating shaft seat, ensuring that the relative position of the drive mechanism and the grinding wheel remains unchanged, ensuring the stable transmission of grinding power during the angle swing. Through the precise speed control and angle feedback of the swivel motor, the grinding wheel can rotate to any preset angle, adapting to the grinding requirements of complex tooth profiles such as helical gears and bevel gears, thereby improving the grinding accuracy while reducing costs and increasing efficiency.

[0019] (2) The drive mechanism adopts a belt drive structure of “grinding wheel motor - transmission component A - transmission belt - transmission component B”. The transmission belt can effectively buffer the impact load during the grinding process, avoid damage to the motor, grinding wheel and workpiece caused by hard impact, reduce energy loss during power transmission, ensure the stability of the grinding wheel when rotating at high speed, improve the surface finish of the grinding surface and reduce the scrap rate of the workpiece.

[0020] (3) Through the lateral adjustment level, the swing angle advance and retreat panel achieves the lateral position coarse adjustment of the entire swing angle mechanism through the precise sliding cooperation between the guide seat A and the slide rail A, combined with the synergistic effect of the swing tooth motor and the tooth-shifting assembly. It can be flexibly adjusted according to the grinding range requirements of different sized workpieces without the need to replace special adapter parts, which greatly improves the compatibility of the equipment with different specifications of workpieces. As for the front and rear feed level, the adjustment mechanism adopts the transmission structure of "drive motor-lead screw-lead screw seat". The screw connection between the lead screw and the lead screw seat converts the rotational motion into precise linear motion. With the smooth guidance of the guide seat B and the guide rail B, it provides millimeter-level front and rear feed accuracy for the grinding wheel. It can accurately control the grinding depth of cut, which can meet the large feed requirements during rough grinding and also adapt to the micro feed requirements during fine grinding, adapting to different grinding process scenarios. Attached Figure Description

[0021] Figure 1This is a schematic diagram of the structure of the swing angle mechanism of this utility model during an explosion;

[0022] Figure 2 This is a three-dimensional first-view structural diagram of the tilting mechanism of this utility model;

[0023] Figure 3 This is a three-dimensional second-view structural schematic diagram of the swing angle mechanism of this utility model;

[0024] Figure 4 This is a schematic diagram of the three-dimensional connection of the pendulum motor, the pendulum rotating component, and the grinding wheel of this utility model.

[0025] Figure 5 This is a three-dimensional structural diagram of the chassis and the tilting mechanism of this utility model.

[0026] In the diagram: 1. Angle turntable connecting plate; 2. Slide rail A; 3. Guide seat A; 4. Swing angle advance / retreat panel; 5. Guide seat B; 6. Swing gear motor; 7. Base plate; 8. Drive motor; 9. Lead screw seat; 10. Positioning seat; 11. Motor swing angle seat; 12. Protective plate; 13. Rotary shaft seat; 14. Swing angle motor; 15. Grinding wheel; 16. Rotary connecting plate; 17. Motor plate; 18. Grinding wheel motor; 19. Guide rail B; 20. Swing angle rotating component; 21. Transmission belt; 22. Transmission component B; 23. Transmission component A; 24. Chassis; 25. Support seat; 26. Gear assembly. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0028] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed", "equipped with", "sleeved with", "connected", etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

[0029] Please see Figure 1-5This utility model provides a technical solution: a swing angle mechanism for a CNC gear grinding machine, including: a machine housing 24, an angle turntable connecting plate 1 connected to the inner side wall of the machine housing 24, a slide rail A2 detachably connected to the top of the angle turntable connecting plate 1, a guide seat A3 slidably connected to the surface of the slide rail A2, and a swing angle advance and retreat panel 4 connected to the top of the guide seat A3.

[0030] The tilting mechanism is located on the top of the tilting angle advance and retreat panel 4. The tilting angle motor 14, the tilting angle rotating component 20 and the grinding wheel 15 of the tilting angle mechanism are rotated so that the tilting angle motor 14 drives the tilting angle rotating component 20 and the grinding wheel 15 to rotate, so that the grinding wheel 15 rotates to different angles.

[0031] The swing mechanism includes a swing motor 14 with a motor swing seat 11 connected to its surface, a base plate 7 connected to the bottom of the motor swing seat 11, a guide seat B5 connected to the bottom of the base plate 7, a guide rail B19 provided on the inner side of the guide seat B5, and the guide rail B19 connected to the top of the swing angle advance / retreat panel 4. The output end of the swing motor 14 is connected to a rotating shaft seat 13, the swing angle rotating component 20 is connected to the surface of the rotating shaft seat 13, and a grinding wheel 15 is connected to the side of the swing angle rotating component 20.

[0032] The top of the rotating shaft seat 13 is fixedly connected to a rotating connecting plate 16 (used to connect the rotating shaft seat and the motor plate to ensure synchronous movement) by welding or integral molding. The top of the rotating connecting plate 16 is fastened to a motor plate 17 (a bearing plate specifically used to install and fix the drive mechanism, with sufficient rigidity) by bolts. The top of the motor plate 17 is provided with a drive mechanism (a power output module that provides grinding power to the grinding wheel). The grinding wheel motor 18 of the drive mechanism (using a high-speed variable frequency motor with adjustable output speed) drives the transmission component A23 (driving wheel, rotating synchronously with the motor output end), the transmission belt 21 (using a high-strength synchronous belt to ensure no slippage in power transmission), and the transmission component B22 (driven wheel, linked with the swing angle rotating component) for stable driving, so that the transmission component B22 drives the grinding wheel 15 to rotate at high speed through torque transmission (meeting the speed requirements of the grinding operation).

[0033] The grinding wheel motor 18 is detachably connected to the top of the motor plate 17 via a detachable bolt assembly (for easy motor maintenance and replacement). The transmission component A23 is fixed to the output shaft of the grinding wheel motor 18 via a key connection. The transmission component B22 is fixed to the side of the swing angle rotating component 20 via bolts and is coaxial with the mounting shaft of the grinding wheel 15. The transmission belt 21 is tightly fitted between the grooves of the transmission components A23 and B22 to form a closed-loop transmission structure. The transmission component A23 is directly connected to the central shaft of the grinding wheel 15 via an extended rotating shaft, ensuring a short power transmission path and low loss, thereby achieving efficient rotation of the grinding wheel.

[0034] An adjustment mechanism is provided between the base plate 7 and the swing angle advance / retreat panel 4. The drive motor 8 of the adjustment mechanism drives the lead screw seat 9 and the base plate 7 to move, so that the base plate 7 can move back and forth.

[0035] The adjustment mechanism includes a positioning seat 10 connected to one side of the top of the swing angle advance / retreat panel 4. The positioning seat 10 is used to fix one end of the lead screw to ensure the rotational stability of the lead screw. The drive motor 8 is connected to the other side of the top of the swing angle advance / retreat panel 4. The output end of the drive motor 8 is connected to the positioning seat 10 with a lead screw. The lead screw is a high-precision ball screw with low friction and high transmission efficiency. The lead screw seat 9 is screwed onto the surface of the lead screw and is connected to the bottom of the base plate 7.

[0036] The side of the angle turntable connecting plate 1 is connected to a swivel tooth motor 6. Inside the housing 24, on one side of the angle turntable connecting plate 1, there is a tooth-shifting assembly 26, which works in conjunction with the swivel tooth motor 6 to achieve lateral coarse adjustment and positioning of the swivel angle advance and retreat panel along the slide rail A2, adapting to the processing range of workpieces of different sizes.

[0037] A protective plate 12, made of steel plate, is provided on one side of the surface of the motor swing bracket 11. It is used to prevent iron filings and oil stains generated during the grinding process from splashing into the core components such as the swing motor 14 and the rotating shaft seat 13, so as to avoid mechanical jamming or electrical failure, and at the same time protect the safety of the operator.

[0038] The bottom four corners of the chassis 24 are respectively connected to support bases 25, which are made of rubber shock absorbers or cast iron, and have anti-slip and shock absorption functions, providing stable horizontal support for the entire chassis and reducing the impact of machine body vibration on machining accuracy during grinding.

[0039] Specifically, during use, the chassis 24 serves as the core load-bearing component, and the support seats 25 at its four corners provide stable horizontal support to prevent the machining accuracy from being affected by the shaking of the machine body during grinding. The angle turntable connecting plate 1 is fixed to the inner side wall of the chassis 24 to provide an installation reference for all subsequent motion mechanisms. The slide rail A2 is fixed to the top of the angle turntable connecting plate 1 through a detachable connection. The guide seat A3 slides with the slide rail A2, allowing the swing angle advance and retreat panel 4 to move laterally along the slide rail A2, providing a basis for adjusting the lateral position of the grinding wheel 15.

[0040] The tilting angle advance / retreat panel 4, through the sliding engagement of guide seat A3 and slide rail A2, can move flexibly in the lateral direction of the angle turntable connecting plate 1. In conjunction with the tilting tooth motor 6 on the side of the angle turntable connecting plate 1 and the tooth-shifting assembly 26 in the housing 24, the lateral position of the entire tilting angle mechanism can be coarsely adjusted to meet the grinding requirements of workpieces of different sizes. The adjustment mechanism between the base plate 7 and the tilting angle advance / retreat panel 4 is responsible for precisely controlling the forward and backward feed of the grinding wheel 15. After the drive motor 8 is started, its output end drives the lead screw fixed to the positioning seat 10 to rotate. Since the lead screw seat 9 is screwed to the lead screw and fixed to the bottom of the base plate 7, the rotational motion of the lead screw is converted into the linear motion of the lead screw seat 9, which in turn drives the base plate 7 to move forward and backward along the guide rail B19 (guide seat B5 and guide rail B19 slide engagement to ensure smooth movement). This adjustment provides the grinding wheel 15 with millimeter-level forward and backward feed accuracy, meeting the precise control of the depth of cut during the grinding process.

[0041] The sway motor 14 is fixed to the surface of the sway motor base 11. The bottom of the sway motor base 11 is rigidly connected to the base plate 7 to ensure the stability of the sway motor 14 during operation. After the sway motor 14 is started, the output end drives the rotating shaft base 13 to rotate. The sway rotating component 20 is fixed to the surface of the rotating shaft base 13 and rotates synchronously with the rotating shaft base 13, thereby driving the side-connected grinding wheel 15 to swing at an angle. Since the rotating connecting plate 16 is fixed to the rotating shaft base 13, the motor plate 17 rotates synchronously with the rotating shaft base 13, ensuring that the relative position of the drive mechanism and the grinding wheel 15 remains unchanged, and ensuring the stable transmission of grinding power during the angle swing. Through the precise speed control and angle feedback of the sway motor 14, the grinding wheel 15 can rotate to any preset angle to adapt to the grinding requirements of complex tooth profiles such as helical gears and bevel gears, thereby improving grinding accuracy while reducing costs and increasing efficiency.

[0042] The grinding wheel motor 18 is detachably fixed to the top of the motor plate 17. After starting, the output end drives the transmission component A23 to rotate. The transmission component A23 forms a belt drive with the transmission component B22 on the side of the swing angle rotating component 20 through the transmission belt 21. The transmission belt 21 transmits the rotational power of the transmission component A23 to the transmission component B22. The transmission component A23 is directly connected to the grinding wheel 15 through the rotating shaft, thus realizing the transmission of power from the grinding wheel motor 18 to the grinding wheel 15, driving the grinding wheel 15 to rotate at high speed for grinding operations. The transmission structure can effectively buffer the impact load during the grinding process, and at the same time, it is convenient to replace the transmission components of different specifications and adjust the grinding wheel speed according to the grinding requirements.

[0043] The protective plate 12 on one side of the surface of the motor swing bracket 11 can prevent iron filings and oil stains generated during the grinding process from splashing into the core components such as the swing motor 14 and the rotating shaft seat 13, thus avoiding mechanical jamming or electrical failure. The precise fit of each sliding joint (such as the guide seat A3 and the slide rail A2, the guide seat B5 and the guide rail B19) reduces the movement gap and ensures the synchronization and accuracy of the movement of each mechanism.

[0044] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A swing angle mechanism for a CNC gear grinding machine, characterized in that, include: The chassis (24) has an angle turntable connecting plate (1) connected to the inner side wall of the chassis (24). The top of the angle turntable connecting plate (1) is connected to a slide rail A (2). The surface of the slide rail A (2) is slidably connected to a guide seat A (3). The top of the guide seat A (3) is connected to a swing angle advance and retreat panel (4). The sway mechanism is located on the top of the sway angle advance and retreat panel (4). The sway angle motor (14), sway angle rotating component (20) and grinding wheel (15) of the sway angle mechanism are rotated so that the sway angle motor (14) drives the sway angle rotating component (20) and grinding wheel (15) to rotate, so that the grinding wheel (15) rotates to different angles. The swing mechanism includes a swing motor (14) with a motor swing seat (11) connected to its surface. A base plate (7) is connected to the bottom of the motor swing seat (11). A guide seat B (5) is connected to the bottom of the base plate (7). A guide rail B (19) is provided on the inner side of the guide seat B (5). The guide rail B (19) is connected to the top of the swing angle advance / retreat panel (4). The output end of the swing motor (14) is connected to a rotating shaft seat (13). A swing rotating component (20) is connected to the surface of the rotating shaft seat (13). A grinding wheel (15) is connected to the side of the swing rotating component (20).

2. The swing angle mechanism of a CNC gear grinding machine according to claim 1, characterized in that, The top of the rotating shaft seat (13) is connected to a rotating connecting plate (16), and the top of the rotating connecting plate (16) is connected to a motor plate (17). The top of the motor plate (17) is provided with a driving mechanism. The grinding wheel motor (18) of the driving mechanism drives the transmission component A (23), the transmission belt (21) and the transmission component B (22) to drive the grinding wheel (15) to rotate.

3. The swing angle mechanism of a CNC gear grinding machine according to claim 2, characterized in that, The grinding wheel motor (18) is detachably connected to the top of the motor plate (17). The transmission component A (23) is connected to the output end of the grinding wheel motor (18). The transmission component B (22) is connected to the side of the swing angle rotating component (20). The transmission belt (21) is sleeved between the transmission component A (23) and the transmission component B (22). The transmission component A (23) is connected to the grinding wheel (15) through the rotating shaft.

4. The swing angle mechanism of a CNC gear grinding machine according to claim 1, characterized in that, An adjustment mechanism is provided between the base plate (7) and the swing angle advance / retreat panel (4). The drive motor (8) of the adjustment mechanism drives the lead screw seat (9) and the base plate (7) to move, so that the base plate (7) moves back and forth.

5. The swing angle mechanism of a CNC gear grinding machine according to claim 4, characterized in that, The adjustment mechanism includes a positioning seat (10) connected to one side of the top of the swing angle advance / retreat panel (4), a drive motor (8) connected to the other side of the top of the swing angle advance / retreat panel (4), a lead screw connected between the output end of the drive motor (8) and the positioning seat (10), a lead screw seat (9) screwed onto the surface of the lead screw, and the lead screw seat (9) connected to the bottom of the base plate (7).

6. The swing angle mechanism of a CNC gear grinding machine according to claim 1, characterized in that, The side of the angle turntable connecting plate (1) is connected to a swivel tooth motor (6), and the inside of the housing (24) is provided with a tooth-shifting assembly (26) on one side of the angle turntable connecting plate (1).

7. The swing angle mechanism of a CNC gear grinding machine according to claim 1, characterized in that, A protective plate (12) is provided on one side of the surface of the motor swing bracket (11).

8. The swing angle mechanism of a CNC gear grinding machine according to claim 1, characterized in that, Support bases (25) are connected to the four corners of the bottom of the chassis (24).

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