Hobbing change gear device of gear hobbing machine

Abstract

The utility model discloses a gear hobbing change gear device of a gear hobbing machine, and relates to the technical field of gear hobbing machines. Comprising a change gear connecting frame and a hobbing cutter, the change gear connecting frame is arranged in a door shape, clamping assemblies are arranged on the inner side wall of the change gear connecting frame, and the hobbing cutter is arranged in the middle of the clamping assemblies; the clamping assembly comprises a clamping seat, a control cavity, a first control motor, a first bevel gear, a guide groove, a connecting rod, a second bevel gear, a moving block and an arc-shaped clamping plate. The gear adjusting device is mainly used for adjusting the depth and angle of a gear, guarantees the quality and precision of the gear, prolongs the service life of the gear and has the advantages of being high in practicability and good in stability.

Description

Technical Field

[0001] The utility model relates to the technical field of hobbing machines, and particularly relates to a hobbing gear hanging wheel device for a hobbing machine. Background Technique

[0002] The hobbing machine is one of the most widely used machine tools in gear processing machine tools. Straight teeth, helical cylindrical gears can be cut on the hobbing machine, and worm wheels, sprocket wheels, etc. can also be processed. It is a gear processing machine tool that uses a hob to process straight teeth, helical teeth and herringbone teeth cylindrical gears and worm wheels by the generating method. When using a special hob, this kind of machine tool can also process workpieces with various special tooth profiles such as splines and sprocket wheels. The machining accuracy of ordinary hobbing machines is grade 7 - 6 (JB179 - 83), and that of high-precision hobbing machines is grade 4 - 3, with a maximum machining diameter of up to 15 meters.

[0003] However, during the machining process of the hobbing machine, the stability of the hob connected to one end of the hanging wheel is insufficient. Generally, the hob is clamped at one end and abutted at the other end, which is likely to cause insufficient stability of the hob. Therefore, it is very necessary to design a hobbing gear hanging wheel device for a hobbing machine with strong practicability and good stability. Content of the Utility Model

[0004] The purpose of the utility model is to provide a hobbing gear hanging wheel device for a hobbing machine to solve the problems raised in the above background technique.

[0005] To solve the above technical problems, the utility model provides the following technical solution: A hobbing gear hanging wheel device for a hobbing machine, including a hanging wheel connecting frame and a hob. The hanging wheel connecting frame is arranged in a gate shape. Clamping components are respectively arranged on the inner side walls of the hanging wheel connecting frame. The hob is arranged in the middle of the clamping components. The clamping components include a clamping seat, a control cavity, a first control motor, a first bevel gear, a guide groove, a connecting rod, a second bevel gear, a moving block and an arc-shaped clamping plate. The control cavity is opened in the clamping seat. The first control motor is fixedly installed in the control cavity and the output end of the first control motor is fixedly installed with the first bevel gear. The guide grooves are evenly distributed around the circumference of the clamping seat. The connecting rods are movably installed in the guide grooves. One end of the connecting rod extends into the control cavity and is fixedly installed with the second bevel gear. The second bevel gears are respectively meshed with the first bevel gear. The moving blocks are movably installed in the guide grooves. The moving blocks are threadedly connected to the corresponding connecting rods. One end of the moving block extends out of the outer wall of the clamping seat and is fixedly installed with the arc-shaped clamping plate. The arc-shaped clamping plates are concentrically arranged and the hob is clamped in the middle of the arc-shaped clamping plates. A driving component is arranged at one end of the hanging wheel connecting frame, and an adjusting component is arranged at the other end of the hanging wheel connecting frame.

[0006] According to the above technical solution, the adjusting assembly includes a movable seat, a guide rod, a limiting plate, a threaded rod, a turntable and a labor-saving rocker arm. One end of the movable seat is movably connected to the clamping seat. The center position of the other end of the movable seat is movably installed with the threaded rod. The threaded rod is threadedly connected to the side wall of the gear connecting frame. One end of the threaded rod is fixedly installed with the turntable. One end edge position of the turntable is fixedly installed with the labor-saving rocker arm. The guide rod is arranged at the edge position of the other end of the movable seat and is movably installed through the side wall of the gear connecting frame. One end of the guide rod is fixedly installed with the limiting plate.

[0007] According to the above technical solution, the driving assembly includes a second control motor and a connecting shaft. The second control motor is fixedly installed on the outer side wall of one end of the gear connecting frame. The output end of the second control motor is fixedly installed with the connecting shaft. The connecting shaft is fixedly connected to the center position of the other end of the clamping seat.

[0008] According to the above technical solution, a spring is sleeved outside the threaded rod. The spring is in a compressed state. One end of the spring abuts against the side wall of the movable seat and the other end abuts against the side wall of the gear connecting frame.

[0009] According to the above technical solution, a protective pad is fixedly installed on the inner arc surface of the arc-shaped clamping plate.

[0010] Compared with the prior art, the beneficial effects achieved by the present invention are as follows: The present invention is provided with a gear connecting frame, which is arranged at one end of the gear hobbing machine gear transmission box and is fixedly connected by bolts. It is mainly used to adjust the depth and angle of the gear, ensure the quality and precision of the gear, and improve the service life of the gear. Through the settings of the clamping seat, control cavity, first control motor, first bevel gear, guide groove, connecting rod, second bevel gear, moving block and arc-shaped clamping plate, the first control motor drives the first bevel gear to rotate, and through the transmission of the first bevel gear and the second bevel gear, the connecting rod is driven to rotate. The hob can be conveniently clamped and fixed by the arc-shaped clamping plate. The protective pad can increase the stable clamping property of the arc-shaped clamping plate, increase the stability of the hob, and at the same time avoid the hard contact between the arc-shaped clamping plate and the hob. At the same time, it has reliable stability and good stability during the processing process. It can realize the convenient disassembly and assembly of the hob. Each first control motor has a separate control end. When fixing the hob, the threaded rod can be conveniently driven to rotate by rotating the labor-saving rocker arm. Furthermore, the movable seat can move along the guide rod. The spring can increase the anti-loosening property when the threaded rod is threadedly connected. The limiting plate is used for limiting to prevent the guide rod from falling off. The second control motor drives the hob to rotate to realize the processing of the gear. Description of the Drawings

[0011] The accompanying drawings are used to provide a further understanding of the present utility model and form a part of the description. Together with the embodiments of the present utility model, they are used to explain the present utility model and do not constitute a limitation to the present utility model. In the drawings:

[0012] Figure 1 is the front view schematic diagram of the present utility model;

[0013] Figure 2 is the side view sectional schematic diagram of the clamping seat of the present utility model;

[0014] Figure 3 is the three-dimensional schematic diagram of the clamping seat of the present utility model;

[0015] In the figure: 1 - hanger connection frame, 2 - hob, 3 - clamping assembly, 31 - clamping seat, 32 - control cavity, 33 - first control motor, 34 - first bevel gear, 35 - guide groove, 36 - connecting rod, 37 - second bevel gear, 38 - moving block, 39 - arc-shaped clamping plate, 4 - driving assembly, 41 - second control motor, 42 - connecting shaft, 5 - adjusting assembly, 51 - movable seat, 52 - guide rod, 53 - limiting plate, 54 - threaded rod, 55 - turntable, 56 - labor-saving rocker arm, 6 - spring, 7 - protective pad. Detailed implementation manners

[0016] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0017] Please refer to Figures 1-3, the present utility model provides a technical solution: a gear hobbing machine gear hobbing change gear device, including a change gear connecting frame 1 and a hob 2. The change gear connecting frame 1 is arranged in a gate shape. Clamping components 3 are respectively arranged on the inner side walls of the change gear connecting frame 1. The hob 2 is arranged in the middle of the clamping components 3. The clamping component 3 includes a clamping seat 31, a control cavity 32, a first control motor 33, a first bevel gear 34, a guide groove 35, a connecting rod 36, a second bevel gear 37, a moving block 38 and an arc-shaped clamping plate 39. The control cavity 32 is opened in the clamping seat 31. The first control motor 33 is fixedly installed in the control cavity 32 and the output end of the first control motor 33 is fixedly installed with the first bevel gear 34. The guide grooves 35 are evenly distributed around the circumference of the clamping seat 31. The connecting rod 36 is movably installed in the guide groove 35. One end of the connecting rod 36 extends into the control cavity 32 and is fixedly installed with the second bevel gear 37. The second bevel gear 37 meshes with the first bevel gear 34 respectively. The moving block 38 is movably installed in the guide groove 35. The moving block 38 is threadedly connected to the corresponding connecting rod 36. One end of the moving block 38 extends out of the outer wall of the clamping seat 31 and is fixedly installed with the arc-shaped clamping plate 39. The arc-shaped clamping plates 39 are concentrically arranged and the hob 2 is clamped in the middle of the arc-shaped clamping plates 39. A driving component 4 is arranged at one end of the change gear connecting frame 1, and an adjusting component 5 is arranged at the other end of the change gear connecting frame 1. When the present utility model is in use, the change gear connecting frame 1 is arranged at one end of the gear hobbing machine change gear transmission box and is fixedly connected by bolts. It is mainly used to adjust the depth and angle of the gear, ensure the quality and precision of the gear, and improve the service life of the gear. Through the settings of the clamping seat 31, the control cavity 32, the first control motor 33, the first bevel gear 34, the guide groove 35, the connecting rod 36, the second bevel gear 37, the moving block 38 and the arc-shaped clamping plate 39, the first control motor 33 drives the first bevel gear 34 to rotate, and through the transmission of the first bevel gear 34 and the second bevel gear 37, the connecting rod 36 is driven to rotate. The hob 2 can be conveniently clamped and fixed by the arc-shaped clamping plate 39, and at the same time has reliable stability. It has good stability during the processing process and can realize the convenient disassembly and assembly of the hob 2. Each first control motor 33 has a separate control end;

[0018] Specifically, the adjusting component 5 includes a movable seat 51, a guide rod 52, a limiting plate 53, a threaded rod 54, a turntable 55, and a labor-saving rocker arm 56. One end of the movable seat 51 is movably connected to the clamping seat 31, and the center position of the other end of the movable seat 51 is movably installed with the threaded rod 54. The threaded rod 54 is threadedly connected to the side wall of the gear connection frame 1. One end of the threaded rod 54 is fixedly installed with the turntable 55, and the edge position of one end of the turntable 55 is fixedly installed with the labor-saving rocker arm 56. The guide rod 52 is arranged at the edge position of the other end of the movable seat 51 and is movably installed through the side wall of the gear connection frame 1. One end of the guide rod 52 is fixedly installed with the limiting plate 53. When fixing the hob 2, by rotating the labor-saving rocker arm 56, the threaded rod 54 can be conveniently driven to rotate, so that the movable seat 51 can move along the guide rod 52, and the limiting plate 53 is used for limiting to prevent the guide rod 52 from falling off;

[0019] Specifically, the driving component 4 includes a second control motor 41 and a connecting shaft 42. The second control motor 41 is fixedly installed on the outer side wall of one end of the gear connection frame 1, and the output end of the second control motor 41 is fixedly installed with the connecting shaft 42. The connecting shaft 42 is fixedly connected to the center position of the other clamping seat 31. By driving the hob 2 to rotate through the second control motor 41, the processing of the gear is realized;

[0020] Specifically, a spring 6 is sleeved outside the threaded rod 54. The spring 6 is in a compressed state. One end of the spring 6 abuts against the side wall of the movable seat 51 and the other end abuts against the side wall of the gear connection frame 1. The spring 6 can increase the anti-loosening property when the threaded rod 54 is threadedly connected;

[0021] Specifically, a protective pad 7 is fixedly installed on the inner arc surface of the arc-shaped clamping plate 39. The protective pad 7 can increase the stable clamping property of the arc-shaped clamping plate 39, increase the stability of the hob 2, and at the same time avoid the hard contact between the arc-shaped clamping plate 39 and the hob 2.

[0022] Working principle: When the utility model is in use, the gear hanger 1 is arranged at one end of the gear hobbing machine gear hanger transmission box and is fixedly connected by bolts. It is mainly used to adjust the depth and angle of the gear, ensure the quality and precision of the gear, and improve the service life of the gear. Through the settings of the clamping seat 31, control cavity 32, first control motor 33, first bevel gear 34, guide groove 35, connecting rod 36, second bevel gear 37, moving block 38 and arc-shaped clamping plate 39, the first control motor 33 drives the first bevel gear 34 to rotate, and through the transmission of the first bevel gear 34 and the second bevel gear 37, the connecting rod 36 is driven to rotate. The hob 2 can be conveniently clamped and fixed by the arc-shaped clamping plate 39. The protective pad 7 can increase the stable clamping property of the arc-shaped clamping plate 39, increase the stability of the hob 2, and at the same time avoid the hard contact between the arc-shaped clamping plate 39 and the hob 2. It also has reliable stability and good stability during the processing process. The hob 2 can be conveniently disassembled and assembled. Each first control motor 33 has a separate control end. When fixing the hob 2, the labor-saving rocker arm 56 can be rotated to conveniently drive the threaded rod 54 to rotate, and then the movable seat 51 can move along the guide rod 52. The spring 6 can increase the anti-loosening property of the threaded connection of the threaded rod 54, and the limiting plate 53 is used for limiting to prevent the guide rod 52 from falling off. The second control motor 41 drives the hob 2 to rotate to realize the processing of the gear. The components such as the first control motor 33, the second control motor 41, the first bevel gear 34, and the second bevel gear 37 in this application are all common technical means in the prior art. Appropriate specifications can be selected, such as IM B3H56-90 general motor, IM B14 H56-90 general motor, etc. There is no need to elaborate too much here.

[0023] It should be noted that in this article, relative terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or device.

[0024] Finally, it should be noted that the above are only the preferred embodiments of the present utility model and are not used to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing embodiments or perform equivalent replacements on some of the technical features. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A gear hobbing device for a gear hobbing machine, comprising a gear hobbing connecting frame (1) and a hob (2), characterized in that: The idler wheel connecting frame (1) is arranged in a door shape, and the inner side walls of the idler wheel connecting frame (1) are respectively provided with clamping assemblies (3), and the hob (2) is arranged in the middle of the clamping assembly (3). The clamping assembly (3) comprises a clamping seat (31), a control cavity (32), a first control motor (33), a first bevel gear (34), a guide groove (35), a connecting rod (36), a second bevel gear (37), a moving block (38) and an arc clamping plate (39). The control cavity (32) is opened in the clamping seat (31), the first control motor (33) is fixedly installed in the control cavity (32), and the first bevel gear (34) is fixedly installed at the output end of the first control motor (33), the guide grooves (35) are evenly distributed on the circumference of the clamping seat (31), and the guide grooves (35) are uniformly distributed on the circumference of the clamping seat (31). The connecting rod (36) is movably installed in the groove (35), one end of the connecting rod (36) extends into the control chamber (32) and is fixedly installed with the second bevel gear (37), the second bevel gear (37) is respectively meshed with the first bevel gear (34), the moving block (38) is movably installed in the guide groove (35), the moving block (38) is threadedly connected to the corresponding connecting rod (36), one end of the moving block (38) extends out of the outer wall of the clamping seat (31) and is fixedly installed with the arc clamping plate (39), the arc clamping plate (39) is concentrically arranged and the hob (2) is clamped in the middle of the arc clamping plate (39), one end of the hanging wheel connecting frame (1) is provided with a driving assembly (4), and the other end of the hanging wheel connecting frame (1) is provided with an adjusting assembly (5).

2. A gear hobbing device for a gear hobbing machine according to claim 1, characterized in that: The adjustment assembly (5) comprises a movable seat (51), a guide rod (52), a limit plate (53), a threaded rod (54), a rotating disk (55) and a labor-saving rocker arm (56); one end of the movable seat (51) is movably connected to the clamping seat (31); the threaded rod (54) is movably mounted at the center position of the other end of the movable seat (51); the threaded rod (54) is threadedly connected to the side wall of the hanging wheel connecting frame (1); the rotating disk (55) is fixedly mounted at one end of the threaded rod (54); the labor-saving rocker arm (56) is fixedly mounted at the edge position of one end of the rotating disk (55); the guide rod (52) is arranged at the edge position of the other end of the movable seat (51) and penetrates and is movably mounted in the side wall of the hanging wheel connecting frame (1); the limit plate (53) is fixedly mounted at one end of the guide rod (52).

3. A gear hobbing device for a gear hobbing machine according to claim 2, characterized in that: The driving assembly (4) comprises a second control motor (41) and a connecting shaft (42); the second control motor (41) is fixedly mounted on an outer wall at one end of the pulley connecting frame (1); the connecting shaft (42) is fixedly mounted on an output end of the second control motor (41); the connecting shaft (42) is fixedly connected to the center position of the clamping seat (31) at the other end.

4. A gear hobbing device for a gear hobbing machine according to claim 3, characterized in that: A spring (6) is connected to the outer shell of the threaded rod (54), and the spring (6) is in a compressed state. One end of the spring (6) abuts against the side wall of the movable seat (51) and the other end abuts against the side wall of the hanging wheel connecting frame (1).

5. The gear hobbing device for a gear hobbing machine according to claim 4, characterized in that: A protective pad (7) is fixedly mounted on the inner arc surface of the arc-shaped clamping plate (39).

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