Angle-adjustable gear grinding tool

Abstract

The utility model provides an angle-adjustable gear grinding tool, and belongs to the field of gear grinding machine tools. The problems that an existing tool is simple in structure and inclination angle adjustment is limited are solved. The angle-adjustable gear grinding tool comprises a hydraulic chuck, a fixed base and a tool table, a rotating disc is installed on the tool table, the hydraulic chuck is fixedly installed on the rotating disc, guide parts are arranged on the two sides of the fixed base, the lower end of the tool table extends downwards in the axial direction to form a matching part, and the matching part is fixedly installed on the rotating disc. The tool table and the fixed base are connected in a matched mode through a guide part and a matching part structure, an adjusting mechanism is further arranged between the tool table and the fixed base and comprises a worm, a turbine and two connecting bases, the two ends of the worm are movably connected to the connecting bases respectively, the worm is meshed with the turbine to achieve adjustment of the inclination angle of the tool table, and the adjusting mechanism is arranged between the tool table and the fixed base. Guide holes are formed in the guide parts, and the tool table is fixed to the fixed base through cooperation of fastening bolts and nuts. The utility model has the advantage of flexible adjustment.

Description

Technical Field

[0001] This utility model belongs to the field of gear grinding machine tools, and relates to grinding fixtures, particularly to adjustable angle gear grinding fixtures. Background Technology

[0002] Gear couplings, as a type of flexible coupling with high torque transmission capacity, are widely used in heavy machinery, marine power systems, generator sets, and high-speed rolling mills. They achieve power transmission between two shafts through the meshing of internal and external teeth and compensate for axial, radial, and angular installation deviations.

[0003] The tooth profile accuracy of the external gear bushing directly affects the transmission efficiency and stability of the gear coupling. Traditional gear grinding fixtures hold the workpiece in a fixed clamp and use a grinding wheel to grind the tooth profile along a preset trajectory. However, existing technologies have the following problems: traditional fixtures use rigid clamping, and the workpiece tilt angle is generally no more than 8°. Otherwise, it will cause interference between the grinding wheel and the workpiece or insufficient machining rigidity, affecting the tooth profile accuracy. Angle adjustment requires multiple clamping or fixture changes, which is inefficient and has poor repeatability. Summary of the Invention

[0004] The purpose of this invention is to address the aforementioned problems in the existing technology by providing an adjustable angle gear grinding fixture to solve these problems.

[0005] The purpose of this utility model can be achieved through the following technical solution: an adjustable angle gear grinding fixture, characterized in that it includes a hydraulic chuck for clamping the workpiece, a fixed base, and a rotatable fixture table, on which a rotating disk that can drive the hydraulic chuck to rotate is installed, and the hydraulic chuck is fixedly installed on the rotating disk.

[0006] Both sides of the fixed base are provided with guide parts with a semi-circular structure, and the lower end of the tooling table extends axially downward with a mating part that is movable and cooperates with both ends of the fixed base.

[0007] The tooling table and the fixed base are connected by a guide part and a mating part structure, and an adjustment mechanism is also provided between the tooling table and the fixed base to facilitate the adjustment of the tilt angle of the tooling table.

[0008] The adjustment mechanism includes a worm, a worm wheel, and two connecting seats. The two ends of the worm are movably connected to the connecting seats and mesh with the worm wheel to achieve the adjustment of the tooling table tilt angle.

[0009] Each guide section has a guide hole for easy angle adjustment, and the tooling table is fixed to the fixed base by fastening bolts and nuts.

[0010] In the aforementioned adjustable angle gear grinding fixture, the fastening bolt passes through the guide hole and connects with the mating part, and is fastened by the nut and the fastening screw. The fixture table is guided to move along the outer edge of its guide part by the cooperation of the worm and the worm wheel.

[0011] In the aforementioned adjustable angle gear grinding fixture, the worm gear and the fixed base are integrally formed, the connecting seat and the lower part of the fixture table are integrally formed, and the worm can be driven by a servo motor or manually adjusted to rotate, thereby adjusting the tilt angle of the fixture table.

[0012] In the aforementioned adjustable angle gear grinding fixture, a floating mechanism for clamping and buffering positioning is also provided on the center of the hydraulic chuck. This floating mechanism includes a reference plate, an elastic element, and a pressure sensor. The pressure sensor can monitor and provide feedback on the clamping force in real time to prevent overload.

[0013] In the aforementioned adjustable angle gear grinding fixture, the jaw surfaces of the hydraulic chuck are all covered with a wear-resistant ceramic layer, which helps to reduce gear clamping damage.

[0014] Compared with existing technologies, this adjustable angle gear grinding fixture has a simple structural design. It utilizes the structural cooperation of a fixed base and a fixture table to make the fixture angle flexible. It can perform grinding operations on gears with tilt angles between 2° and 12°. Furthermore, the cooperation of a hydraulic chuck and a rotary table greatly improves the flexibility of clamping and processing and reduces the problem of insufficient clamping rigidity. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of an adjustable angle gear grinding fixture.

[0016] Figure 2 This is a three-dimensional structural diagram of an adjustable angle gear grinding fixture.

[0017] In the diagram, 1 is the hydraulic chuck; 2 is the fixed base; 3 is the tooling table; 4 is the rotary table; 5 is the guide part; 6 is the mating part; 7 is the worm gear; 8 is the worm wheel; 9 is the guide hole; 10 is the fastening screw; 11 is the nut; 12 is the connecting seat; and 13 is the floating mechanism. Detailed Implementation

[0018] The following are specific embodiments of the present invention, which are described in conjunction with the accompanying drawings. However, the present invention is not limited to these embodiments.

[0019] like Figure 1 , Figure 2As shown, this adjustable angle gear grinding fixture includes a hydraulic chuck 1 for clamping the workpiece, a fixed base 2, and a rotatable fixture table 3. A rotary disk 4, which can drive the hydraulic chuck 1 to rotate, is mounted on the fixture table 3. The hydraulic chuck 1 is fixedly mounted on the rotary disk 4. Both sides of the fixed base 2 are provided with guide parts 5 in a semi-circular structure. The lower end of the fixture table 3 extends axially downward with a mating part 6 that is movably engaged with both ends of the fixed base 2. The fixture table 3 and the fixed base 2 are connected by the structural cooperation of the guide parts 5 and the mating parts 6. An adjustment mechanism is also provided between the fixture table 3 and the fixed base 2 to facilitate the adjustment of the tilt angle of the fixture table 3. The adjustment mechanism includes a worm 7, a worm wheel 8, and two connecting seats 12. The two ends of the worm 7 are movably connected to the connecting seats 12 and mesh with the worm wheel 8 to realize the adjustment of the tilt angle of the fixture table 3. The guide parts 5 are provided with guide holes 9 to facilitate the angle adjustment, and the fixture table 3 is fixed to the fixed base 2 by fastening bolts and nuts 11.

[0020] The fastening bolt passes through the guide hole 9 and connects with the mating part 6, and is fastened to the fastening screw 10 by the nut 11. The tooling table 3 is guided to move along the outer edge of its guide part 5 by the cooperation of the worm 7 and the worm wheel 8.

[0021] To elaborate further, in order to improve the accuracy of angle adjustment, the worm gear 8 and the fixed base 2 are integrally formed, and the connecting seat 12 and the lower part of the tooling table 3 are integrally formed. The worm gear 7 can be driven by a servo motor or manually adjusted to rotate, thereby driving the tooling table 3 to adjust its tilt angle.

[0022] To elaborate further, in order to achieve rapid clamping, a floating mechanism 13 for clamping and buffering positioning is also provided on the center of the hydraulic chuck 1. The floating mechanism 13 includes a reference plate, an elastic element and a pressure sensor. The pressure sensor can monitor the clamping force in real time and provide feedback to prevent overload.

[0023] To elaborate further, in order to prevent the jaws from damaging the workpiece surface, the jaw surfaces on the hydraulic chuck 1 are all covered with a wear-resistant ceramic layer, which helps to reduce gear clamping damage.

[0024] The specific embodiments described herein are merely illustrative examples illustrating the spirit of this utility model. Those skilled in the art to which this utility model pertains may make various modifications or additions to the described specific embodiments or use similar methods to substitute them, without departing from the spirit of this utility model or exceeding the scope defined by the appended claims.

[0025] Although this document uses a lot of technical terms, the possibility of using other terms is not excluded. These terms are used merely for the convenience of describing and explaining the essence of this invention; interpreting them as any kind of additional limitation would contradict the spirit of this invention.

Claims

1. An angle-adjustable gear grinding tool, characterized by, Including hydraulic chuck (1) for workpiece clamping, fixed fixed base (2), and rotatable tooling table (3), the rotating disc (4) is installed on the tooling table (3), which can drive the hydraulic chuck (1) to rotate, and the hydraulic chuck (1) is fixedly installed on the rotating disc (4); The fixed base (2) is provided with a guide part (5) in a semicircular structure on both sides, and the lower end of the tooling table (3) extends axially downward and is movably connected with the two ends of the fixed base (2); The tooling table (3) and the fixed base (2) are connected by the guide part (5) and the matching part (6), and the adjusting mechanism is further arranged between the tooling table (3) and the fixed base (2) to facilitate the inclination angle adjustment of the tooling table (3); The adjusting mechanism includes a worm (7), a worm wheel (8) and two connecting seats (12), the two ends of the worm (7) are movably connected to the connecting seats (12), and the worm wheel is meshed with each other to realize the inclination angle adjustment of the tooling table (3); The guide hole (9) is provided on the guide part (5) to facilitate the angle adjustment, and the tooling table (3) is fixed on the fixed base (2) by the cooperation of the fastening bolt and the nut (11).

2. The angle adjustable gear grinding tool according to claim 1, characterized in that, The fastening bolt is connected with the matching part (6) through the guide hole (9), and is fastened by the cooperation of the nut (11) and the fastening screw (10), and the tooling table (3) is guided and moved along the outer edge of the guide part (5) by the cooperation of the worm (7) and the worm wheel (8).

3. The angle adjustable gear grinding tool according to claim 1, characterized in that, The worm wheel (8) and the fixed base (2) are integrally formed, the connecting seat (12) and the tooling table (3) below are integrally formed, and the worm (7) can be driven by a servo motor or manually adjusted to rotate, thereby adjusting the inclination angle of the tooling table (3).

4. The angle adjustable gear grinding tool according to claim 1, characterized by, The center part of the hydraulic chuck (1) is further provided with a floating mechanism (13) for clamping and buffering positioning, which includes a reference disc, an elastic member and a pressure sensor, which can monitor the clamping force in real time and feedback to prevent overload.

5. The angle adjustable gear grinding tool according to claim 1, wherein The surfaces of the clamping jaws on the hydraulic chuck (1) are covered with a wear-resistant ceramic layer to reduce the damage of gear clamping.

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