Hobbing cutter positioning device of gear hobbing machine

Abstract

The utility model belongs to the technical field of gear hobbing machines, particularly relates to a hobbing cutter positioning device of a gear hobbing machine, and aims to solve the problems of inconvenience in operation and poor rotation precision in the background technology, and adopts the following scheme that the hobbing cutter positioning device comprises a cutter bar bracket, an oil cylinder is arranged on the outer wall of the cutter bar bracket, and a piston rod of the oil cylinder is fixedly connected with a connecting plate; a sliding support steel cylinder is fixedly connected to the outer wall of one side of the connecting plate, and a support main shaft is arranged on the inner wall of the sliding support steel cylinder. The connecting plate is driven by the oil cylinder to move, automatic positioning of the hobbing cutter can be achieved, the rotating precision of the hobbing cutter is greatly improved, the device has the advantages of being stable in structure, good in sealing performance and the like, the maintenance period is long, the service life of the device is prolonged, traditional manual control is replaced by hydraulic control, the structure is updated in the design aspect, and the production cost is reduced. The system can supply oil to the oil cylinder through the electromagnetic valve so as to control high-precision rotation of the hob rotating support, the design is reasonable, and manpower is saved.

Description

Technical Field

[0001] The utility model relates to the technical field of gear hobbing machines, in particular to a gear hobbing machine hobbing cutter positioning device. Background Art

[0002] Gear hobbing machine is a gear processing machine tool, which is widely used in the field of gear processing. It is the most widely used type of gear processing machine tool, mainly used for cutting spur and helical cylindrical gears, and can also process worm gears, sprockets, etc.

[0003] Traditional gear hobbing machine hob rod brackets generally use a manual mechanism to position the hob, which is inconvenient, time-consuming and laborious to operate, and affects the rotation accuracy of the hob rotating bracket. Utility Model Content

[0004] In view of the deficiencies of the prior art, the utility model provides a hob positioning device for a gear hobbing machine, which overcomes the deficiencies of the prior art and effectively solves the problems of inconvenient operation and poor rotation accuracy.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A hob positioning device for a gear hobbing machine comprises a tool bar bracket, an oil cylinder is arranged on the outer wall of the tool bar bracket, and a connecting plate is fixedly connected to the piston rod of the oil cylinder, a sliding bracket steel cylinder is fixedly connected to the outer wall of one side of the connecting plate, and a bracket main shaft is arranged on the inner wall of the sliding bracket steel cylinder, a locking inner ring is arranged on the outer wall of the bracket main shaft, and a locking outer ring is arranged between the locking inner ring and the sliding bracket steel cylinder;

[0007] A sealed front bearing is provided on the inner wall of the sliding bracket steel cylinder at one end of the bracket main shaft, and a sealed rear bearing is provided on the inner wall of the sliding bracket steel cylinder at the other end of the bracket main shaft. A pressure cover is provided on the outer wall of one side of the sealed rear bearing, and an oil seal is provided on the outer wall of one side of the sealed front bearing. A positioning cone sleeve is fixedly connected to the outer wall of the other end of the bracket main shaft.

[0008] Preferably, a roller is provided on the outer wall of one end of the main shaft of the bracket.

[0009] Preferably, a conical groove is provided on an outer wall of one side of the positioning cone sleeve.

[0010] Preferably, a fixed end is provided on the outer wall of one end of the knife bar bracket, and the knife bar bracket is arranged inside the fixed end.

[0011] Preferably, the outer wall of the fixed end head is fixedly connected with symmetrically distributed fixing rods, and the outer wall of one end of the fixing rod is fixedly connected to the outer wall of the oil cylinder.

[0012] Preferably, a casing is provided at the other end of the knife rod support, a driving device is provided at the top of the inner wall of the casing, and a driven device is provided at the bottom of the inner wall of the casing.

[0013] Preferably, the knife bar support and the driven device are fixedly connected via a coupling.

[0014] Preferably, a locking nut is fixedly connected between the sliding bracket steel cylinder and the pressure cover.

[0015] The beneficial effects of the utility model are:

[0016] 1. The hob positioning device of the gear hobbing machine designed in this invention has a structure in which the main shaft of the bracket is connected to the sliding bracket steel cylinder, and the connecting plate is connected to the sliding bracket steel cylinder. When in use, it is connected to the hob rod through the positioning cone sleeve, and the connecting plate is driven to move by the oil cylinder, so that the automatic positioning of the hob can be realized, which greatly improves the accuracy of the hob rotation.

[0017] 2. The hob positioning device of the gear hobbing machine designed in this invention is provided with a locking inner ring, a locking outer ring, a sealed front bearing, a sealed rear bearing, a pressure cover and an oil seal and other structures inside the device, so that the device has the characteristics of stable structure, good sealing, etc., and has a long maintenance cycle, which increases the service life of the device.

[0018] 3. The hob cutter positioning device of the gear hobbing machine designed in this paper replaces the traditional manual control with hydraulic control, and the structure is updated in design. The system can supply oil to the cylinder through the solenoid valve, thereby controlling the high-precision rotation of the hob cutter rotating bracket. The design is reasonable and saves manpower. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the overall structure of a hobbing cutter positioning device for a gear hobbing machine proposed by the utility model;

[0020] Figure 2 This is a structural schematic diagram of a hobbing cutter positioning device for a gear hobbing machine proposed by the utility model;

[0021] Figure 3 The utility model is a schematic structural diagram of a gear hobbing machine hobbing cutter positioning device.

[0022] In the figure: 1. tool rod bracket; 2. oil cylinder; 3. connecting plate; 4. sliding bracket steel cylinder; 5. bracket main shaft; 6. locking inner ring; 7. locking outer ring; 8. sealed front bearing; 9. sealed rear bearing; 10. gland; 11. oil seal; 12. positioning cone sleeve; 13. fixed end; 14. fixed rod; 15. casing; 16. driving device; 17. driven device; 18. locking nut. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0024] Embodiment 1, refer to Figures 1 to 2 A hob positioning device for a gear hobbing machine comprises a tool rod support 1, an outer wall of the tool rod support 1 is provided with an oil cylinder 2, and the piston rod of the oil cylinder 2 is fixedly connected to a connecting plate 3, an outer wall of one side of the connecting plate 3 is fixedly connected to a sliding support steel cylinder 4, and the inner wall of the sliding support steel cylinder 4 is provided with a support spindle 5.

[0025] In this embodiment, in terms of structure, the bracket main shaft 5 is connected to the sliding bracket steel cylinder 4, and the connecting plate 3 is connected to the sliding bracket steel cylinder 4. When in use, it is connected to the hob rod through the positioning cone sleeve 12, and the connecting plate 3 is driven to move by the cylinder 2, so that the automatic positioning of the hob can be achieved, which greatly improves the accuracy of the hob rotation. The traditional manual control is replaced by hydraulic control, and the structure is updated in design. The system can supply oil to the cylinder 2 through the solenoid valve, thereby controlling the high-precision rotation of the hob rotating bracket. The design is reasonable and saves manpower.

[0026] Example 2, refer to Figures 1 to 2 A hob positioning device for a gear hobbing machine, a locking inner ring 6 is arranged on the outer wall of the bracket main shaft 5, and a locking outer ring 7 is arranged between the locking inner ring 6 and the sliding bracket steel cylinder 4, a sealed front bearing 8 is arranged on the inner wall of the sliding bracket steel cylinder 4 at one end of the bracket main shaft 5, and a sealed rear bearing 9 is arranged on the inner wall of the sliding bracket steel cylinder 4 at the other end of the bracket main shaft 5, a pressure cover 10 is arranged on the outer wall on one side of the sealed rear bearing 9, and an oil seal 11 is arranged on the outer wall on one side of the sealed front bearing 8, and a positioning cone sleeve 12 is fixedly connected to the outer wall of the other end of the bracket main shaft 5.

[0027] In this embodiment, a locking inner ring 6, a locking outer ring 7, a sealed front bearing 8, a sealed rear bearing 9, a pressure cover 10 and an oil seal 11 are arranged inside the device, so that the device has the characteristics of stable structure, good sealing, etc., long maintenance cycle, and improved service life of the device.

[0028] Reference Figure 2 A hob is arranged on the outer wall of one end of the main shaft 5 of the bracket.

[0029] Reference Figure 2 A conical groove is provided on the outer wall of one side of the positioning cone sleeve 12.

[0030] Reference Figure 1 A fixed end 13 is provided on the outer wall of one end of the tool rod bracket 1, and the tool rod bracket 1 is arranged inside the fixed end 13. The outer wall of the fixed end 13 is fixedly connected with symmetrically distributed fixed rods 14, and the outer wall of one end of the fixed rod 14 is fixedly connected to the outer wall of the cylinder 2.

[0031] Reference Figure 3 A housing 15 is provided at the other end of the tool rod support 1, and a driving device 16 is provided at the top of the inner wall of the housing 15, and a driven device 17 is provided at the bottom of the inner wall of the housing 15. The tool rod support 1 and the driven device 17 are fixedly connected by a coupling.

[0032] Reference Figure 1 A locking nut 18 is fixedly connected between the sliding bracket steel cylinder 4 and the pressure cover 10.

[0033] Working principle: A locking inner ring 6, a locking outer ring 7, a sealed front bearing 8 and a sealed rear bearing 9 are arranged between the bracket main shaft 5 and the sliding bracket steel cylinder 4 to ensure the stability of the device operation, and a pressure cover 10 and an oil seal 11 are arranged at both ends of the bracket main shaft 5 to ensure the sealing of the device operation. In terms of structure, the bracket main shaft 5 is connected to the sliding bracket steel cylinder 4, and the connecting plate 3 is connected to the sliding bracket steel cylinder 4. When in use, it is connected to the hob rod through the positioning cone sleeve 12, and the connecting plate 3 is driven to move by the oil cylinder 2, which can realize automatic positioning of the hob, thereby improving the accuracy of the hob rotation.

[0034] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A gear hobbing machine hob positioning device, comprising a tool bar support (1), characterized in that: The outer wall of the knife bar support (1) is provided with an oil cylinder (2), and the piston rod of the oil cylinder (2) is fixedly connected to a connecting plate (3), the outer wall of one side of the connecting plate (3) is fixedly connected to a sliding support steel cylinder (4), and the inner wall of the sliding support steel cylinder (4) is provided with a support main shaft (5), the outer wall of the support main shaft (5) is provided with a locking inner ring (6), and a locking outer ring (7) is provided between the locking inner ring (6) and the sliding support steel cylinder (4); A sealed front bearing (8) is arranged on the inner wall of the sliding support steel cylinder (4) at one end of the support main shaft (5), and a sealed rear bearing (9) is arranged on the inner wall of the sliding support steel cylinder (4) at the other end of the support main shaft (5), a pressure cover (10) is arranged on the outer wall of one side of the sealed rear bearing (9), and an oil seal (11) is arranged on the outer wall of one side of the sealed front bearing (8), and a positioning cone sleeve (12) is fixedly connected to the outer wall of the other end of the support main shaft (5).

2. A gear hobbing machine hob positioning device according to claim 1, characterized in that: A roller is arranged on the outer wall of one end of the support main shaft (5).

3. A hob positioning device for a gear hobbing machine according to claim 1, characterized in that: A conical groove is provided on the outer wall of one side of the positioning cone sleeve (12).

4. A gear hobbing machine hob positioning device according to claim 1, characterized in that: A fixed end (13) is provided on the outer wall of one end of the knife bar bracket (1), and the knife bar bracket (1) is arranged inside the fixed end (13).

5. A hob positioning device for a gear hobbing machine according to claim 4, characterized in that: The outer wall of the fixed end (13) is fixedly connected to symmetrically distributed fixed rods (14), and the outer wall of one end of the fixed rod (14) is fixedly connected to the outer wall of the oil cylinder (2).

6. A gear hobbing machine hob positioning device according to claim 1, characterized in that: The other end of the knife bar bracket (1) is provided with a casing (15), the top of the inner wall of the casing (15) is provided with a driving device (16), and the bottom of the inner wall of the casing (15) is provided with a driven device (17).

7. A hob positioning device for a gear hobbing machine according to claim 6, characterized in that: The knife bar support (1) and the driven device (17) are fixedly connected via a coupling.

8. The hob positioning device for a gear hobbing machine according to claim 1, characterized in that: A locking nut (18) is fixedly connected between the sliding bracket steel cylinder (4) and the pressure cover (10).

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