A gear shaping fixture for gearbox gear machining

Abstract

This utility model relates to the field of gearbox parts processing technology, and discloses a gear-shaping fixture for gearbox gear processing, including a rotating base. A rotating ring is movably connected in the inner cavity of the rotating base. A spiral rack is fixedly installed on the upper part of the rotating ring, and a helical gear ring is fixedly installed on the bottom of the rotating ring. A servo motor is fixedly installed at the front of the inner cavity of the rotating base. A helical gear is fixedly sleeved on the output shaft of the servo motor, and the outer extension of the helical gear meshes with the helical gear ring. A moving rod is evenly and movably sleeved in the inner cavity of the rotating base above the rotating ring. The bottom of the moving rod is evenly provided with grooves, which fit with the spiral rack. The servo motor drives the rotating ring, and with the fit between the spiral rack and the grooves, the moving rod drives the clamping plate to fix the internal gear. This facilitates the fixture to fix internal gear rings of different diameters, enhances the applicability of the fixture, improves the working efficiency of the fixture, ensures that the internal gear ring is centered, and reduces positional errors.

Description

Technical Field

[0001] This utility model relates to the field of gearbox parts processing technology, and in particular to a gear-shaping fixture for gearbox gear processing. Background Technology

[0002] The gearbox, also known as a transmission, is the core component of a vehicle's drivetrain. It is mainly used to change the engine's output speed and torque to adapt to the vehicle's power demands under different driving conditions. Its core functions include enabling reverse driving, interrupting power transmission, and matching engine speed with wheel speed through different gear ratios, thereby improving fuel economy and driving performance. The working principle of the gearbox is based on gear meshing or the energy transfer of the transmission medium. Modern gearboxes also integrate electronic control units, which can intelligently adjust the shift logic based on signals such as vehicle speed and throttle opening.

[0003] In the prior art, when machining the internal gears used in the gearbox, the internal gear components need to be clamped and fixed, and then the gear grooves of the internal gear are cut using a gear shaping tool. In the traditional method, different bolts need to be selected according to the diameter of the gear hole for fixing, which results in poor applicability of the fixture and consumes a lot of time during fixing, affecting the working efficiency of the fixture device. Therefore, in order to solve the above problems, this utility model proposes a gear shaping fixture for gearbox gear machining. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a gear-shaping fixture for gearbox gear processing. A servo motor drives a rotating ring, which, in conjunction with the engagement of a spiral rack and groove, causes the moving rods to move in opposite directions, thereby driving the clamping plates to fix the internal gear. This facilitates the fixture's ability to fix internal gear rings of different diameters, enhances the fixture's applicability, and improves its working efficiency. The simultaneous movement of four sets of clamping plates ensures that the internal gear ring is centered, reducing positional errors.

[0005] This utility model provides the following technical solution: a gear-shaping fixture for gearbox gear processing, comprising a rotating base, a rotating ring movably connected in the inner cavity of the rotating base, a spiral rack fixedly installed on the upper part of the rotating ring, a helical gear ring fixedly installed on the bottom of the rotating ring, a servo motor fixedly installed at the front of the inner cavity of the rotating base, a helical gear fixedly sleeved on the output shaft of the servo motor, the outer extension of the helical gear meshing with the helical gear ring, four moving rods uniformly and movably sleeved in the inner cavity of the rotating base above the rotating ring, the bottom of each moving rod having uniformly formed grooves that engage with the spiral rack, and a clamping plate fixedly installed at one end of each moving rod facing the center of the inner cavity of the rotating base. The servo motor drives the rotating ring, and the engagement of the spiral rack with the grooves causes the moving rods to drive the clamping plate to fix the internal gear, facilitating the fixture to fix internal gear rings of different diameters, enhancing the fixture's applicability, improving its working efficiency, ensuring the internal gear ring is centered, and reducing positional errors.

[0006] Preferably, the clamping plate has a sliding groove on the side away from the moving rod. There are two sliding grooves, which are symmetrically distributed. An electric push rod is fixedly installed at the bottom of the inner cavity of the sliding groove. A pressure plate is fixedly installed at the telescopic end of the electric push rod. The pressure plate is movably connected to the sliding groove. When the electric push rod is turned on, the pressure plate is lowered to clamp the upper edge of the internal gear, thereby completely fixing the internal gear and preventing the internal gear ring from moving due to vertical resistance during cutting. This helps to improve the stability of the internal gear ring during processing.

[0007] Preferably, a toothed ring is fixedly sleeved on the outside of the rotating seat, and a base plate is movably sleeved below the rotating seat. A cavity is opened on the right side of the inner cavity of the base plate. The toothed ring facilitates the flexible rotation of the rotating seat. The base plate at the bottom of the rotating seat provides good support for the rotating seat, and the inner cavities of the two are connected, which facilitates the rapid discharge of metal chips generated during cutting.

[0008] Preferably, a second servo motor is fixedly installed in the cavity, and a gear is fixedly sleeved on the output shaft of the second servo motor. The outer extension of the gear meshes with the gear ring. When performing internal gear ring cutting operations, the second servo motor is turned on to drive the gear to rotate. The meshing of the gear and the gear ring drives the rotating seat to rotate, thereby adjusting the tooth insertion position of the internal gear ring and enhancing the flexibility of internal gear ring processing.

[0009] Compared with the prior art, the present invention has the following beneficial effects:

[0010] 1. A servo motor drives a helical gear to rotate, which in turn meshes with the helical gear ring to drive the rotating ring. During the rotation of the rotating ring, the spiral rack engages with the groove, driving four moving rods to move towards each other in the inner cavity of the rotating seat. This causes the clamping plates to clamp the outer edge of the internal gear, making the fixing of the internal gear ring convenient and quick. This is beneficial for fixing internal gear rings of different diameters, enhancing the applicability of the clamp and improving work efficiency. The four sets of clamping plates move towards the internal gear ring simultaneously to clamp it, ensuring that the internal gear ring is in the center position of the inner cavity of the rotating seat, reducing the positional error between the axis of the internal gear ring and the gear shaping tool.

[0011] 2. The pressure plate is lowered by the electric push rod, clamping the upper edge of the internal gear to completely fix the internal gear. This prevents the internal gear ring from moving due to vertical resistance during cutting, which helps improve the stability of the internal gear ring during processing, ensures the machining accuracy of the tooth groove, and maintains the yield rate of the internal gear ring. During the processing operation, the gear is driven to rotate by the servo motor, and the meshing of the gear and the gear ring drives the rotating seat to rotate, thereby adjusting the tooth insertion position of the internal gear ring and enhancing the flexibility of the internal gear ring during processing. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the external structure of this utility model;

[0013] Figure 2 This is a schematic diagram of the internal structure of the fixture of this utility model;

[0014] Figure 3 This is a schematic diagram of the clamp transmission structure of this utility model;

[0015] Figure 4 This is a schematic diagram of the clamping plate structure of this utility model;

[0016] Figure 5 This is a schematic diagram of the rotating structure of this utility model.

[0017] In the diagram: 1. Rotating seat; 2. Rotating ring; 3. Scroll rack; 4. Helical gear ring; 5. Servo motor one; 6. Helical gear; 7. Moving rod; 8. Groove; 9. Clamping plate; 10. Slide groove; 11. Electric push rod; 12. Pressure plate; 13. Gear ring; 14. Base plate; 15. Cavity; 16. Servo motor two; 17. Gear. Detailed Implementation

[0018] 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.

[0019] Please see Figures 1-5 A gear-shaping fixture for gearbox gear processing includes a rotating base 1. A rotating ring 2 is movably connected to the inner cavity of the rotating base 1. A spiral rack 3 is fixedly installed on the upper part of the rotating ring 2, and a helical ring 4 is fixedly installed on the bottom of the rotating ring 2. A servo motor 5 is fixedly installed at the front of the inner cavity of the rotating base 1. A helical gear 6 is fixedly sleeved on the output shaft of the servo motor 5, and the outer extension of the helical gear 6 meshes with the helical ring 4. Four moving rods 7 are evenly and movably sleeved in the inner cavity of the rotating base 1 and above the rotating ring 2. The bottom of the moving rods 7 is evenly provided with grooves 8, which fit with the spiral rack 3. A clamping plate 9 is fixedly installed at the end of the moving rod 7 facing the center of the inner cavity of the rotating base 1. The internal gear for gear cutting is placed in the inner cavity of the rotating seat 1. The servo motor 5 is turned on to drive the helical gear 6 to rotate. The helical gear 6 meshes with the helical gear ring 4, which in turn drives the rotating ring 2 to rotate. During the rotation of the rotating ring 2, the spiral rack 3 engages with the groove 8, thereby driving the four moving rods 7 to move towards each other in the inner cavity of the rotating seat 1. The moving rods 7 drive the clamping plates 9 to clamp the outer edge of the internal gear, making the fixing of the internal gear ring convenient and quick. This is beneficial for the fixture to fix internal gear rings of different diameters, enhancing the applicability of the fixture and improving work efficiency. The four sets of clamping plates 9 move towards the internal gear ring at the same time to clamp it, ensuring that the internal gear ring is in the center position of the inner cavity of the rotating seat 1, reducing the positional error between the axis of the internal gear ring and the gear cutting tool.

[0020] A sliding groove 10 is provided on the side of the clamping plate 9 away from the moving rod 7. There are two sliding grooves 10, which are symmetrically distributed. An electric push rod 11 is fixedly installed at the bottom of the inner cavity of the sliding groove 10. A pressure plate 12 is fixedly installed at the telescopic end of the electric push rod 11. The pressure plate 12 is movably connected to the sliding groove 10. A gear ring 13 is fixedly sleeved on the outside of the rotating seat 1. A base plate 14 is movably sleeved below the rotating seat 1. A cavity 15 is provided on the right side of the inner cavity of the base plate 14. A servo motor 16 is fixedly installed in the cavity 15. A gear 17 is fixedly sleeved on the output shaft of the servo motor 16. The outer extension of the gear 17 is connected to the... When the gear ring 13 is engaged, the electric push rod 11 is activated, causing the pressure plate 12 to descend and clamp the upper edge of the internal gear, thus completely fixing the internal gear. This prevents the internal gear ring from moving due to vertical resistance during cutting, which helps improve the stability of the internal gear ring during processing, ensures the machining accuracy of the tooth groove, and maintains the yield rate of the internal gear ring. During processing, the servo motor 16 is activated to drive the gear 17 to rotate. The meshing of the gear 17 with the gear ring 13 drives the rotating seat 1 to rotate, thereby adjusting the tooth insertion position of the internal gear ring and enhancing the flexibility of the internal gear ring during processing.

[0021] Working principle: The internal gear to be shaped is placed in the inner cavity of the rotating seat 1. The servo motor 5 is turned on to drive the helical gear 6 to rotate. The helical gear 6 meshes with the helical gear ring 4, which in turn drives the rotating ring 2 to rotate. During the rotation of the rotating ring 2, the spiral rack 3 engages with the groove 8, thereby driving the four moving rods 7 to move towards each other in the inner cavity of the rotating seat 1. The moving rods 7 drive the clamping plate 9 to clamp the outer edge of the internal gear. Then, the electric push rod 11 is turned on to drive the pressure plate 12 to descend, clamping the upper edge of the internal gear and achieving complete fixation of the internal gear. When the gear shaping tool is used to process the internal gear, the servo motor 16 is turned on to drive the gear 17 to rotate. The meshing of the gear 17 with the gear ring 13 drives the rotating seat 1 to rotate, thereby adjusting the gear shaping position of the internal gear ring.

Claims

1. A gear-shaping fixture for machining gearbox gears, comprising a rotating base (1), characterized in that: A rotating ring (2) is movably connected in the inner cavity of the rotating seat (1). A spiral rack (3) is fixedly installed on the upper part of the rotating ring (2). A helical ring (4) is fixedly installed at the bottom of the rotating ring (2). A servo motor (5) is fixedly installed at the front of the inner cavity of the rotating seat (1). A helical gear (6) is fixedly sleeved on the output shaft of the servo motor (5). The outer extension of the helical gear (6) meshes with the helical ring (4). A moving rod (7) is evenly movably sleeved in the inner cavity of the rotating seat (1) and above the rotating ring (2). There are four moving rods (7). The bottom of the moving rod (7) is evenly provided with grooves (8). The grooves (8) fit with the spiral rack (3). A clamping plate (9) is fixedly installed at one end of the moving rod (7) facing the center of the inner cavity of the rotating seat (1).

2. The gear-shaping fixture for gearbox gear machining according to claim 1, characterized in that: The clamping plate (9) has a sliding groove (10) on the side away from the moving rod (7). There are two sliding grooves (10) and they are symmetrically distributed. An electric push rod (11) is fixedly installed at the bottom of the inner cavity of the sliding groove (10). A pressure plate (12) is fixedly installed at the telescopic end of the electric push rod (11). The pressure plate (12) is movably connected to the sliding groove (10).

3. The gear-shaping fixture for gearbox gear machining according to claim 1, characterized in that: The rotating seat (1) is fixedly sleeved with a toothed ring (13), and a base plate (14) is movably sleeved below the rotating seat (1). A cavity (15) is opened on the right side of the inner cavity of the base plate (14).

4. A gear-shaping fixture for gearbox gear machining according to claim 3, characterized in that: A servo motor (16) is fixedly installed in the cavity (15). A gear (17) is fixedly sleeved on the output shaft of the servo motor (16). The outer extension of the gear (17) meshes with the gear ring (13).

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