High-precision numerical control gear hobbing machine

Abstract

The utility model discloses a high-precision numerical control gear hobbing machine, which relates to the technical field of processing equipment and comprises a machine body, and a vertical frame is arranged at one end of the top surface of the machine body; a horizontal sliding rail is arranged on the top face of the machine body and located on one side of the vertical frame, a vertical sliding rail is arranged on the side, opposite to the horizontal sliding rail, of the vertical frame, a sliding table is arranged on the vertical sliding rail, a hob table is arranged at the other end of the sliding table, a deflection shaft is arranged in the hob table, and the deflection shaft is rotationally connected with the hob table. According to the high-precision numerical control gear hobbing machine, the deflection shaft is arranged, deflection of the deflection shaft is controlled, a certain angle is formed between the hob shaft and a workpiece on the rotary table, and precise machining of a bevel gear is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of processing equipment, in particular to a high-precision numerical control hobbing machine. Background Technique

[0002] A hobbing machine is one of the most widely used machine tools in gear processing machine tools. Straight teeth and helical cylindrical gears can be cut on a 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 machine tool can also process various special tooth-shaped workpieces such as splines and sprocket wheels.

[0003] The existing hobbing machine has a high operation difficulty in processing helical gears, poor processing accuracy, and a great impact on the yield rate of helical gears.

[0004] Therefore, a high-precision numerical control hobbing machine is provided to improve the processing accuracy of the hobbing machine for gears. Content of the Utility Model

[0005] Therefore, the purpose of the utility model is to provide a high-precision numerical control hobbing machine to solve the problems raised in the above background technique.

[0006] To solve the above technical problems, the utility model provides the following technical solution: A high-precision numerical control hobbing machine, which includes a machine body, one end of the top surface of the machine body is provided with a vertical frame; a horizontal slide rail is arranged on the top surface of the machine body, the horizontal slide rail is located on one side of the vertical frame, a vertical slide rail is arranged on the side of the vertical frame facing the horizontal slide rail, a slide table is arranged on the vertical slide rail, a hob table is arranged at the other end of the slide table, and a deflection shaft is arranged inside the hob table, and the deflection shaft is rotatably connected to the hob table.

[0007] As a preferred scheme of the high-precision numerical control hobbing machine described in the utility model, wherein: a buffer table is arranged on the top of the slide table, and the other end of the buffer table is connected to the top of the vertical frame; vertical sliders are symmetrically arranged on both side surfaces of the slide table, and the other ends of the vertical sliders are slidably connected to the vertical slide rail.

[0008] As a preferred scheme of the high-precision numerical control hobbing machine described in the utility model, wherein: the hob table is located at the center of the slide table, a second baffle is arranged at one end of the hob table, a third baffle is arranged at the opposite end of the hob table, the positions of the second baffle and the third baffle are symmetrical to each other, a first baffle is connected to the tops of the third baffle and the second baffle, and a deflection groove is arranged inside one end of the third baffle.

[0009] As a preferred embodiment of the high-precision CNC hobbing machine of the present utility model, wherein: a hob holder is provided at the other end of the offset shaft, a hob shaft is provided inside the hob holder, a motor is provided on the side of the hob shaft opposite to the offset groove, the other end of the motor is located inside the offset groove, and the center of the motor corresponds to the axis of the offset groove.

[0010] As a preferred embodiment of the high-precision CNC hobbing machine of the present utility model, wherein: a feed table is provided above the horizontal slide rail, a horizontal slider is provided at the bottom of the feed table, and the horizontal slider is slidably connected to both sides of the horizontal slide rail; slide bars are provided on both sides at the bottom of the vertical slide rail, and the slide bars are slidably connected to one side of the feed table.

[0011] As a preferred embodiment of the high-precision CNC hobbing machine of the present utility model, wherein: a turntable is provided at the midline of the top surface of the feed table, and the center of the turntable corresponds to the center of the hob shaft.

[0012] As a preferred embodiment of the high-precision CNC hobbing machine of the present utility model, wherein: an electric control box is provided above one side of the vertical frame, and the electric control box is electrically connected to the machine body and the vertical frame.

[0013] As a preferred embodiment of the high-precision CNC hobbing machine of the present utility model, wherein: a limit plate is provided at one end of the machine body, a connecting rod is provided at one end of the limit plate, the connecting rod is perpendicular to the side surface of the machine body, a support rod is provided on the top surface of the other end of the connecting rod, and a numerical control box is provided at the top of the support rod.

[0014] Advantages of the present utility model:

[0015] The present utility model provides a high-precision CNC hobbing machine. By providing an offset shaft and controlling the deflection of the offset shaft, an angle is formed between the hob shaft and the workpiece on the turntable, thereby achieving precise machining of helical gears. Description of the Drawings

[0016] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the following drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings. Among them:

[0017] Figure 1 It is the overall structure diagram of a high-precision CNC hobbing machine of the present utility model;

[0018] Figure 2 It is the partial structure bottom view of a high-precision CNC hobbing machine of the present utility model.

[0019] Explanation of the reference numerals in the drawings:

[0020] 1. Machine body; 11. Limit plate; 12. Connecting rod; 13. Horizontal slide rail; 14. Vertical slide rail; 2. Vertical frame; 21. Electric control box; 3. Numerical control box; 31. Support rod; 4. Feeding table; 41. Horizontal slider; 42. Slide bar; 43. Turntable; 5. Slide table; 51. Buffer table; 52. Vertical slider; 6. Hob table; 61. First baffle; 62. Second baffle; 63. Third baffle; 64. Deflection groove; 7. Deflection shaft; 71. Hob holder; 72. Hob shaft; 73. Motor. Detailed implementation mode

[0021] To make the above objects, features and advantages of the present utility model more obvious and understandable, the following will give a detailed description of the specific implementation mode of the present utility model with reference to the accompanying drawings of the specification.

[0022] Refer to Figure 1-2 , a high-precision numerical control hobbing machine provided by the present utility model. This high-precision numerical control hobbing machine includes a machine body 1, and a vertical frame 2 is provided at one end of the top surface of the machine body 1; a horizontal slide rail 13 is provided on the top surface of the machine body 1, the horizontal slide rail 13 is located on one side of the vertical frame 2, and a vertical slide rail 14 is provided on the side of the vertical frame 2 facing the horizontal slide rail 13. A slide table 5 is provided on the vertical slide rail 14, and a hob table 6 is provided at the other end of the slide table 5. A deflection shaft 7 is provided inside the hob table 6, and the deflection shaft 7 is rotatably connected to the hob table 6.

[0023] Specifically, a vertical frame 2 is provided at one end of the top surface of the machine body 1; a horizontal slide rail 13 is provided on the top surface of the machine body 1, the horizontal slide rail 13 is located on one side of the vertical frame 2, and a vertical slide rail 14 is provided on the side of the vertical frame 2 facing the horizontal slide rail 13. Two mutually perpendicular slide rails are formed on the machine body 1 and the vertical frame 2 through the horizontal slide rail 13 and the vertical slide rail 14; a slide table 5 is provided on the vertical slide rail 14, so that the slide table 5 can slide within the range of the vertical slide rail 14; a hob table 6 is provided at the other end of the slide table 5, and hobbing of the workpiece is realized through the hob table 6; a deflection shaft 7 is provided inside the hob table 6, and the deflection shaft 7 is rotatably connected to the hob table 6. Through the independent rotation between the deflection shaft 7 and the hob table 6, the deflection shaft 7 can change the hobbing angle.

[0024] A buffer table 51 is provided on the top of the slide table 5, and the other end of the buffer table 51 is connected to the top of the vertical frame 2; vertical sliders 52 are symmetrically provided on both side surfaces of the slide table 5, and the other ends of the vertical sliders 52 are slidably connected to the vertical slide rail 14.

[0025] Specifically, through the sliding between the vertical slider 52 and the vertical slide rail 14, the slide table 5 slides on the vertical slide rail 14, and the sliding of the slide table 5 is buffered by the buffer table 51.

[0026] The hob table 6 is located at the center of the slide table 5. A second baffle 62 is provided at one end of the hob table 6, and a third baffle 63 is provided at the opposite end of the hob table 6. The positions of the second baffle 62 and the third baffle 63 are symmetrical to each other. A first baffle 61 is connected to the tops of the third baffle 63 and the second baffle 62. A deflection groove 64 is provided inside one end of the third baffle 63.

[0027] Specifically, the second baffle 62 and the first baffle 61 prevent impurities generated during hobbing from splashing outwards. The length of the first baffle 61 is less than that of the second baffle 62, which facilitates observing the hobbing progress from the top.

[0028] The other end of the deflection shaft 7 is provided with a hob holder 71. A hob shaft 72 is provided inside the hob holder 71. A motor 73 is provided on the side of the hob shaft 72 opposite to the deflection groove 64. The other end of the motor 73 is located inside the deflection groove 64, and the center of the motor 73 corresponds to the axis of the deflection groove 64.

[0029] Specifically, the deflection of the deflection shaft 7 drives the deflection of the hob holder 71, so that the hob holder 71 forms a certain angle with the workpiece; the motor 73 drives the hob shaft 72 to rotate to achieve hobbing of the workpiece; the deflection groove 64 prevents the motor 73 from colliding with the third baffle 63 during deflection.

[0030] A feed table 4 is provided above the horizontal slide rail 13. A horizontal slider 41 is provided at the bottom of the feed table 4, and the horizontal slider 41 is slidably connected to both sides of the horizontal slide rail 13; Slide bars 42 are provided on both sides of the bottom of the vertical slide rail 14, and the slide bars 42 are slidably connected to one side of the feed table 4.

[0031] Specifically, the feed table 4 completes sliding through the cooperation of the horizontal slider 41 and the horizontal slide rail 13, and the slide bars 42 assist in the sliding of the feed table 4 to prevent the feed table 4 from disengaging from the horizontal slide rail 13.

[0032] A turntable 43 is provided at the midline of the top surface of the feed table 4, and the center of the turntable 43 corresponds to the center of the hob shaft 72.

[0033] Specifically, the workpiece to be processed is installed on the top of the turntable 43, which drives the workpiece to rotate and aligns it with the hob shaft 72 to ensure the accuracy of hobbing.

[0034] An electric control box 21 is provided above one side of the vertical frame 2, and the electric control box 21 is electrically connected to the machine body 1 and the vertical frame 2.

[0035] Specifically, the vertical frame 2 controls the power on and off of each system on the machine body 1 and the vertical frame 2.

[0036] One end of the machine body 1 is provided with a limit plate 11. One end of the limit plate 11 is provided with a connecting rod 12. The connecting rod 12 is perpendicular to the side surface of the machine body 1. The top surface of the other end of the connecting rod 12 is provided with a support rod 31. The top of the support rod 31 is provided with a numerical control box 3.

[0037] Specifically, one end of the horizontal slide rail 13 is limited by the limit plate 11; the numerical control box 3 is electrically connected to the machine body 1 and the vertical frame 2, so that the numerical control box 3 controls the movements of the feed table 4, the slide table 5 and the deflection shaft 7 to achieve precise hobbing.

[0038] During the use process, the workpiece to be processed is placed above the turntable 43. The numerical control box 3 adjusts the movement of the feed table 4 on the horizontal slide rail 13 to align one end of the workpiece on the turntable 43 with the hob shaft 72. The motor 73 is controlled to drive the hob shaft 72 to rotate. Then, the up and down movement of the slide table 5 on the vertical slide rail 14 is controlled to cooperate with the feeding of the feed table 4 and the rotation of the turntable 43 to complete the hobbing of the workpiece; when it is necessary to reinforce the helical gear, the rotation of the deflection shaft 7 is controlled by the numerical control box 3 to deflect the hob shaft 72 by a certain angle, and then the workpiece is processed.

[0039] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and not to limit them. Although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present invention can be modified or equivalently replaced without departing from the spirit and scope of the technical solutions of the present invention, and they should all be covered by the scope of the claims of the present invention.

Claims

1. A high-precision CNC hobbing machine, comprising a machine body (1), characterized in that: One end of the top surface of the machine body (1) is provided with a vertical frame (2); a horizontal slide rail (13) is arranged on the top surface of the machine body (1), the horizontal slide rail (13) is located on one side of the vertical frame (2), a vertical slide rail (14) is arranged on the side of the vertical frame (2) facing the horizontal slide rail (13), a slide table (5) is arranged on the vertical slide rail (14), a hob table (6) is arranged at the other end of the slide table (5), a deflection shaft (7) is arranged inside the hob table (6), and the deflection shaft (7) is rotationally connected with the hob table (6); The other end of the deflection shaft (7) is provided with a hob holder (71), a hob shaft (72) is arranged inside the hob holder (71), a motor (73) is arranged on the side of the hob shaft (72) facing the deflection groove (64), the other end of the motor (73) is located inside the deflection groove (64), and the center of the motor (73) corresponds to the axis of the deflection groove (64); The hob table (6) is located at the center of the slide table (5), a second baffle (62) is arranged at one end of the hob table (6), a third baffle (63) is arranged at the opposite end of the hob table (6), the positions of the second baffle (62) and the third baffle (63) are symmetrical to each other, a first baffle (61) is connected to the tops of the third baffle (63) and the second baffle (62), a deflection groove (64) is arranged inside one end of the third baffle (63), and the second baffle (62) and the first baffle (61) are used to prevent impurities generated during hobbing from splashing outwards. The length of the first baffle (61) is less than the length of the second baffle (62), which is convenient for observing the hobbing progress from the top.

2. The high-precision CNC hobbing machine according to claim 1, wherein: A buffer table (51) is arranged on the top of the slide table (5), and the other end of the buffer table (51) is connected to the top of the vertical frame (2); vertical sliders (52) are symmetrically arranged on both side faces of the slide table (5), and the other ends of the vertical sliders (52) are slidably connected with the vertical slide rail (14).

3. A high-precision CNC hobbing machine according to claim 1, characterized in that: A feed table (4) is arranged above the horizontal slide rail (13), a horizontal slider (41) is arranged at the bottom of the feed table (4), and the horizontal slider (41) is slidably connected with both sides of the horizontal slide rail (13); slide rods (42) are arranged on both sides at the bottom of the vertical slide rail (14), and the slide rods (42) are slidably connected with one side of the feed table (4).

4. A high-precision CNC hobbing machine according to claim 3, characterized in that: A turntable (43) is arranged at the midline of the top surface of the feed table (4), and the center of the turntable (43) corresponds to the center of the hob shaft (72).

5. The high-precision CNC hobbing machine according to claim 2, wherein: An electric control box (21) is arranged above one side of the vertical frame (2), and the electric control box (21) is electrically connected with the machine body (1) and the vertical frame (2).

6. The high-precision CNC hobbing machine according to claim 1, wherein: A limit plate (11) is arranged at one end of the machine body (1), a connecting rod (12) is arranged at one end of the limit plate (11), the connecting rod (12) is perpendicular to the side face of the machine body (1), a support rod (31) is arranged on the top surface of the other end of the connecting rod (12), and a numerical control box (3) is arranged on the top of the support rod (31).

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