Gear hobbing machine for machining speed reducer gear

Abstract

The utility model discloses a gear hobbing machine for machining a speed reducer gear, and relates to the technical field of gear machining. The device comprises a bottom plate, a supporting frame is fixedly connected to the top face of the bottom plate, a plurality of hob assemblies are installed on the surface of the supporting frame, the specifications of the hob assemblies are different, and a switching mechanism used for adjusting the positions of the hob assemblies is arranged on the right side face of the supporting frame. A bearing mechanism used for containing gear blanks is arranged on the front side of the top face of the bottom plate, the hob assembly comprises a mounting frame, a first motor is fixedly mounted on the surface of the mounting frame, the output end of the first motor is fixedly connected with a first rotating shaft, and a hob body is fixedly mounted on the surface of the first rotating shaft. During use, the effect of conveniently and quickly switching the hobs is achieved, and tedious disassembly and assembly procedures are not needed, so that gears of different specifications are more quickly adapted, the machining efficiency is improved, and diversified gear machining requirements are met.

Description

TECHNICAL FIELD

[0001] The utility model relates to gear machining technical field, concretely relates to a hobbing machine for machining speed reducer gear. BACKGROUND

[0002] At present, the hobbing machine is the most widely used machine tool in gear machining machine tool, and straight teeth, helical teeth cylindrical gears can be cut on the hobbing machine, and worm gears, chain wheels and the like can also be machined. The gear machining machine tool uses hobbing cutter to process straight teeth, helical teeth and herringbone teeth cylindrical gears and worm gears according to the generating method. This machine tool can also machine various special tooth-shaped workpieces such as splines and chain wheels when using special hobbing cutters. The machining precision of the ordinary hobbing machine is 7-6 levels, and the machining precision of the high-precision hobbing machine is 4-3 levels, and the maximum machining diameter reaches 15 meters.

[0003] The hobbing cutter of the existing hobbing machine usually adopts a fixed structure, which is troublesome to disassemble and replace, and requires professional tools and operations. In addition, the fixed hobbing cutter can only adapt to specific tooth blank specifications, and it is difficult to meet the machining needs of various gears, resulting in low production efficiency and additional equipment adjustment and spare part costs.

[0004] Therefore, a hobbing machine for machining speed reducer gears is provided. UTILITY MODEL CONTENTS

[0005] The utility model aims at: for solving the problem mentioned in the above background art, the utility model provides a hobbing machine for machining speed reducer gears.

[0006] The utility model discloses a specific technical scheme in order to realize the above-mentioned purpose:

[0007] A hobbing machine for machining speed reducer gears, comprising a bottom plate, the top surface of the bottom plate is fixedly connected with a support frame, a plurality of hobbing cutter assemblies are installed on the surface of the support frame, and the specifications of the plurality of hobbing cutter assemblies are different, a switching mechanism for adjusting the position of the hobbing cutter assembly is arranged on the right side surface of the support frame, and a bearing mechanism for placing a tooth blank is arranged on the top front side of the bottom plate.

[0008] Further, the hobbing cutter assembly comprises a mounting frame, a first motor is fixedly installed on the surface of the mounting frame, a first rotating shaft is fixedly connected to the output end of the first motor, and a hobbing cutter body is fixedly installed on the surface of the first rotating shaft.

[0009] Further, the switching mechanism comprises a first electric push rod, and the first electric push rod is fixedly installed on the surface of the support frame, a rack is fixedly connected to the telescopic end of the first electric push rod, a support shaft is rotatably connected to the surface of the support frame, and the support shaft is fixedly connected with the mounting frame, a gear is fixedly connected to the end portion of the support shaft, and the gear is engaged with the rack.

[0010] Further, the bearing mechanism comprises a support table, the top of the support table is used for placing a gear blank, the top surface of the bottom plate is fixedly connected with a fixing frame, the surface of the fixing frame is fixedly installed with a second electric push rod, the telescopic end of the second electric push rod is fixedly connected with a movable plate, and the movable plate is slidably connected with the fixing frame, the bottom surface of the movable plate is fixedly connected with a connecting column, the bottom end of the connecting column is rotatably connected with a pressing plate, and the bearing mechanism further comprises a driving assembly for controlling the rotation of the support table.

[0011] Further, the driving assembly comprises a second motor, and the second motor is fixedly installed on the top surface of the bottom plate, the output end of the second motor is fixedly connected with a second rotating shaft, the surface of the second rotating shaft is fixedly connected with a bracket, and the top end of the bracket is fixedly connected with the bottom surface of the support table.

[0012] Further, the surface of the support frame is provided with a guide groove, and the inner wall of the guide groove is slidably connected with the surface of the gear rack.

[0013] The beneficial effects of the utility model are as follows:

[0014] The gear of the speed reducer is placed on the surface of the bearing mechanism, the gear of the speed reducer is limited by the bearing mechanism, and the rotation of the gear is controlled, and the hob assembly is operated, so that the gear of the speed reducer can be machined, when different specifications of gears need to be machined, the switching mechanism can be operated to drive the hob assembly to rotate, so that different hob assemblies are located on the front side, thereby adapting to different specifications of gears, and the effect of quickly switching the hob is realized in use, without complicated dismounting and mounting procedures, so that different specifications of gears are adapted more quickly, the machining efficiency is improved, and the diversified gear machining requirements are met. BRIEF DESCRIPTION OF DRAWINGS

[0015] Fig. 1 It is the three-dimensional structure schematic view of the utility model;

[0016] Fig. 2 It is the right view of the support frame structure of the utility model;

[0017] Fig. 3 It is the structure schematic view of the bearing mechanism of the utility model;

[0018] Fig. 4 It is the structure schematic view of the hob assembly of the utility model;

[0019] Marked: 1, bottom plate; 2, support frame; 3, hob assembly; 301, mounting frame; 302, first motor; 303, first rotating shaft; 304, hob body; 4, switching mechanism; 401, first electric push rod; 402, rack; 403, support shaft; 404, gear; 405, guide groove; 5, bearing mechanism; 501, second motor; 502, second rotating shaft; 503, bracket; 504, support table; 505, fixed frame; 506, second electric push rod; 507, movable plate; 508, connecting column; 509, pressing plate. DETAILED DESCRIPTION

[0020] To make the purpose, technical scheme and advantages of the embodiments of the present application clearer, the technical scheme in the embodiments of the present application will be described clearly and completely below with reference to 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 herein can be arranged and designed in various different configurations.

[0021] Therefore, the following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the claimed present application, but only represents selected embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative labor fall within the scope of protection of the present application.

[0022] It should be noted that: similar reference numbers and letters represent similar items in the following drawings, therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings. In addition, the terms "first", "second", etc. are only used for differentiation in description, and cannot be understood as indicating or implying relative importance.

[0023] The electrical components appearing in this document are all electrically connected with the master controller and 220V mains, and the master controller can be a conventional known device such as a computer for control.

[0024] In the description of the embodiments of the present application, it should be noted that the directions or position relationships indicated by the terms "inner", "outer", "upper", etc. are based on the directions or position relationships shown in the drawings, or the directions or position relationships commonly placed when the product of the present application is used, which are only for the convenience of describing the present application and simplifying the description, and cannot be understood as indicating or implying that the indicated device or element must have a particular direction, be constructed and operated in a particular direction, and therefore cannot be understood as limiting the present application.

[0025] As Figs. 1 to 4As shown, a kind of gear hobbing machine for machining reduction gear, including bottom plate 1, the top surface of bottom plate 1 is fixedly connected with support frame 2, the surface of support frame 2 is equipped with multiple groups of hobbing cutter assemblies 3, and the specifications of multiple groups of hobbing cutter assemblies 3 are not identical, the right side of support frame 2 is provided with switching mechanism 4 for adjusting the position of hobbing cutter assembly 3, the top surface of bottom plate 1 front side is provided with bearing mechanism 5 for placing blank gear.The more specific is, reduction gear is placed on the surface of bearing mechanism 5, reduction gear is positioned by bearing mechanism 5, and the rotation of gear is controlled, and hobbing cutter assembly 3 is operated, i.e. reduction gear can be machined, when different specifications of gear are machined, switching mechanism 4 can be operated, hobbing cutter assembly 3 is driven to rotate, so that different hobbing cutter assemblies 3 are located in front side, to adapt to different specifications of gear machining.

[0026] Hobbing cutter assembly 3 includes mounting bracket 301, the surface of mounting bracket 301 is fixedly installed with first motor 302, the output end of first motor 302 is fixedly connected with first rotating shaft 303, and the surface of first rotating shaft 303 is fixedly installed with hobbing cutter body 304.It needs to be explained that first rotating shaft 303 is driven to rotate by first motor 302, so as to drive hobbing cutter body 304 to rotate, and hobbing cutter body 304 is contacted with blank gear to process blank gear.

[0027] Switching mechanism 4 includes first electric push rod 401, and first electric push rod 401 is fixedly installed on the surface of support frame 2, the telescopic end of first electric push rod 401 is fixedly connected with rack 402, the surface of support frame 2 is rotatably connected with support shaft 403, and support shaft 403 is fixedly connected with mounting bracket 301, the end of support shaft 403 is fixedly connected with gear 404, and gear 404 is engaged with rack 402.The more specific is, the telescopic end of first electric push rod 401 is driven to move, so as to drive rack 402 to move, gear 404 is driven to rotate by rack 402, i.e. support shaft 403 is controlled to rotate, support shaft 403 will drive hobbing cutter assembly 3 to rotate, so that different hobbing cutter assemblies 3 reach front, and the switching of hobbing cutter assembly 3 is realized.

[0028] The bearing mechanism 5 comprises a support table 504, the top of the support table 504 is used for placing the tooth blank, the top surface of the bottom plate 1 is fixedly connected with a fixing frame 505, the surface of the fixing frame 505 is fixedly installed with a second electric push rod 506, the telescopic end of the second electric push rod 506 is fixedly connected with a movable plate 507, and the movable plate 507 is slidably connected with the fixing frame 505, the bottom surface of the movable plate 507 is fixedly connected with a connecting column 508, and the bottom end of the connecting column 508 is rotatably connected with a pressing plate 509, and the bearing mechanism 5 further comprises a driving assembly for controlling the rotation of the support table 504. It should be noted that the tooth blank is placed on the top surface of the support table 504 and runs through the fixing frame 505, the telescopic end is driven to shorten, thereby driving the movable plate 507 to slide along the surface of the fixing frame 505, and then driving the connecting column 508 to descend, so that the pressing plate 509 is pressed on the top surface of the tooth blank, and the tooth blank is positioned, the support table 504 can be controlled to rotate through the driving assembly, and the pressing plate 509 and the connecting column 508 are rotatably connected, so that the support table 504 and the pressing plate 509 can keep the tooth blank positioned during rotation.

[0029] The driving assembly comprises a second motor 501, and the second motor 501 is fixedly installed on the top surface of the bottom plate 1, the output end of the second motor 501 is fixedly connected with a second rotating shaft 502, the surface of the second rotating shaft 502 is fixedly connected with a bracket 503, and the top end of the bracket 503 is fixedly connected with the bottom surface of the support table 504. More specifically, the second motor 501 is operated to drive the second rotating shaft 502 to rotate, thereby driving the bracket 503 to rotate, that is, the support table 504 is driven to rotate, so that the tooth blank is continuously rotated to fully open the tooth blank circumference.

[0030] The surface of the support frame 2 is provided with a guide groove 405, and the inner wall of the guide groove 405 is slidably connected with the surface of the rack 402. It should be noted that by arranging the guide groove 405, the rack 402 is supported and positioned by the guide groove 405 during movement, thereby improving the stability of the rack 402.

[0031] In summary: the gear of the speed reducer is placed on the surface of the bearing mechanism 5, the gear of the speed reducer is positioned by the bearing mechanism 5, and the gear is continuously rotated, and the hobbing tool assembly 3 is operated, so that the gear of the speed reducer is machined, when different specifications of gears need to be machined, the switching mechanism 4 is operated to drive the hobbing tool assembly 3 to rotate, so that different hobbing tool assemblies 3 are located at the front side, thereby adapting to different specifications of gear machining, achieving the effect of quickly switching the hobbing tool in use, without complicated disassembly and installation process, so that different specifications of gears are quickly adapted, the machining efficiency is improved, and the diversified gear machining demand is met.

[0032] The basic principle, main features and advantages of the present application are shown and described above. It should be understood by those skilled in the art that the present application is not limited by the above examples, and the above examples and descriptions in the specification are only the principles of the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the claimed present application. The scope of protection required by the present application is defined by the appended claims and their equivalents.

Claims

1. A gear hobbing machine for machining reducer gears, characterized in that, Includes a base plate (1), on the top surface of which a support frame (2) is fixedly connected. Multiple sets of hobbing cutter assemblies (3) are installed on the surface of the support frame (2), and the specifications of the multiple sets of hobbing cutter assemblies (3) are different. A switching mechanism (4) for adjusting the position of the hobbing cutter assembly (3) is provided on the right side of the support frame (2), and a bearing mechanism (5) for placing the gear blank is provided on the front side of the top surface of the base plate (1).

2. The gear hobbing machine for machining reducer gears according to claim 1, characterized in that, The hobbing cutter assembly (3) includes a mounting bracket (301), on which a first motor (302) is fixedly mounted. The output end of the first motor (302) is fixedly connected to a first rotating shaft (303), and the surface of the first rotating shaft (303) is fixedly mounted with a hobbing cutter body (304).

3. A gear hobbing machine for machining reducer gears according to claim 2, characterized in that, The switching mechanism (4) includes a first electric push rod (401), which is fixedly installed on the surface of the support frame (2). The telescopic end of the first electric push rod (401) is fixedly connected to a rack (402). The surface of the support frame (2) is rotatably connected to a support shaft (403), which is fixedly connected to the mounting frame (301). The end of the support shaft (403) is fixedly connected to a gear (404), which meshes with the rack (402).

4. A gear hobbing machine for machining reducer gears according to claim 1, characterized in that, The bearing mechanism (5) includes a support platform (504), the top of which is used to place the gear blank. A fixed frame (505) is fixedly connected to the top surface of the base plate (1). A second electric push rod (506) is fixedly installed on the surface of the fixed frame (505). A movable plate (507) is fixedly connected to the telescopic end of the second electric push rod (506), and the movable plate (507) is slidably connected to the fixed frame (505). A connecting column (508) is fixedly connected to the bottom surface of the movable plate (507), and a pressure plate (509) is rotatably connected to the bottom end of the connecting column (508). The bearing mechanism (5) also includes a drive assembly for controlling the rotation of the support platform (504).

5. A gear hobbing machine for machining reducer gears according to claim 4, characterized in that, The drive assembly includes a second motor (501), which is fixedly mounted on the top surface of the base plate (1). The output end of the second motor (501) is fixedly connected to a second rotating shaft (502). A bracket (503) is fixedly connected to the surface of the second rotating shaft (502), and the top of the bracket (503) is fixedly connected to the bottom surface of the support platform (504).

6. A gear hobbing machine for machining reducer gears according to claim 3, characterized in that, The surface of the support frame (2) is provided with a guide groove (405), and the inner wall of the guide groove (405) is slidably connected to the surface of the rack (402).

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