Hydraulic self-locking structure of gear milling machine tip

Abstract

The utility model belongs to the technical field of gear milling machine tips, particularly relates to a hydraulic self-locking structure of a gear milling machine tip, and provides the following scheme aiming at the problems that the precision is influenced and the operation risk of an operator is increased due to manual operation in the background technology: the hydraulic self-locking structure comprises a shell, a hydraulic self-locking tip, a hydraulic rotating tip and a center positioning tip are arranged on the outer wall of one side of the machine shell. On the basis of the center positioning center, the hydraulic self-locking center and the hydraulic rotating center are additionally arranged, so that the hydraulic self-locking center is suitable for turning and grinding a long shaft piece, the whole shaft piece is machined through one-time clamping, the hydraulic self-locking center is convenient and fast to use, traditional manual self-locking is changed into hydraulic self-locking design, a T-shaped screw does not need to be installed, operation is convenient and fast, precision is improved, the safety coefficient is high, and machining efficiency is high. The whole center of the gear milling machine has the positioning function, the driving function and the self-locking function at the same time, when a workpiece is clamped, a clamp does not need to be replaced within a certain range, compatible clamping of various products can be carried out, and the machining precision is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of gear milling machine tops, in particular to a hydraulic self-locking structure of the gear milling machine top. Background Art

[0002] Gear milling machine is a machine tool used for processing gears, mainly used for processing large, heavy-loaded, high-precision, high-strength gears. Gear milling machine usually has a high-precision double-column structure and is one of the large machine tools.

[0003] The lathe center is a device used for centering and to withstand the gravity of the workpiece and the cutting force. Traditional CNC gear milling machine centers have some problems during use. For example, the center is generally locked by a mechanical structure and installed in a T-shaped screw. Manual operation is required during the process, which affects the accuracy and increases the operator's operating risk. Utility Model Content

[0004] In view of the deficiencies of the prior art, the utility model provides a hydraulic self-locking structure for the top of a gear milling machine, which overcomes the deficiencies of the prior art and effectively solves the problems of manual operation affecting precision and increasing the operating risks of the operator.

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

[0006] A hydraulic self-locking structure for a gear milling machine top comprises a housing, wherein a hydraulic self-locking top, a hydraulic rotating top and a center positioning top are arranged on an outer wall of one side of the housing, and a locking shaft is arranged inside the hydraulic self-locking top, a disc spring is arranged on the outer wall of the locking shaft, and a locking shaft plug is arranged on the outer wall of one end of the locking shaft, a first adjusting washer is fixedly connected to the outer wall of the top of the locking shaft plug, and a locking shaft oil-proof sleeve is arranged on the outer wall of the locking shaft at the bottom of the locking shaft plug;

[0007] A swing cylinder is arranged inside the hydraulic rotating top, and the swing cylinder piston rod is fixedly connected to a coupling, the bottom of the coupling is fixedly connected to a rotating shaft core, and the top and bottom of the outer wall of the rotating shaft core are respectively provided with a bearing middle inner spacer and a bearing middle spacer.

[0008] Preferably, an O-ring is provided on the top of the outer wall of the locking shaft.

[0009] Preferably, a first U-shaped ring is disposed on the inner wall of the bottom of the O-ring, and a second U-shaped ring is disposed at the bottom of the first U-shaped ring.

[0010] Preferably, a bearing sleeve is provided at the bottom of the outer wall of the rotating shaft core, and a thrust ball bearing is provided on the inner wall of the bearing sleeve.

[0011] Preferably, a first tapered roller bearing is disposed on an outer wall at one end of the rotating shaft core, and a second tapered roller bearing is disposed on an outer wall at the other end of the rotating shaft core.

[0012] Preferably, a lower bearing cover is fixedly connected to the outer wall of the bottom of the hydraulic rotating top.

[0013] Preferably, a second adjusting washer is fixedly connected to the outer wall of the bottom of the hydraulic rotating top.

[0014] Preferably, a flange is installed between the hydraulic rotating center and the swing cylinder.

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

[0016] 1. The hydraulic self-locking structure of the milling machine center designed in this paper adds a hydraulic self-locking center and a hydraulic rotating center on the basis of the center positioning center. It is suitable for turning and grinding long shaft parts. The entire shaft part can be processed by clamping at one time, which is convenient and quick to use.

[0017] 2. The hydraulic self-locking structure of the milling machine tip of this design is changed from the traditional manual self-locking to the hydraulic self-locking design through the design update of the structure of the milling machine tip, with the cooperation of the locking shaft, disc spring, locking shaft plug, first adjustment washer and locking shaft oil-proof sleeve. It does not need to install the T-shaped screw, is easy to operate, improves the accuracy and has a high safety factor.

[0018] 3. The hydraulic self-locking structure of the gear milling machine tip designed in this paper has positioning, driving and self-locking functions. When clamping the workpiece, there is no need to replace the fixture within a certain range. It can be compatible with multiple products and improve the processing accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the overall structure of a hydraulic self-locking structure of a gear milling machine top proposed by the utility model;

[0020] Figure 2 A cross-sectional view of a hydraulic self-locking top structure of a gear milling machine top proposed by the utility model;

[0021] Figure 3 A sectional view of a hydraulic rotating center structure of a hydraulic self-locking structure of a gear milling machine center proposed by the utility model.

[0022] In the figure: 1. casing; 2. hydraulic self-locking top; 3. hydraulic rotating top; 4. center positioning top; 5. locking shaft; 6. disc spring; 7. locking shaft plug; 8. first adjusting washer; 9. locking shaft oil-proof sleeve; 10. first U-shaped ring; 11. second U-shaped ring; 12. O-ring; 13. swing cylinder; 14. coupling; 15. rotating shaft core; 16. middle inner spacer ring of bearing; 17. middle spacer ring of bearing; 18. bearing sleeve; 19. thrust ball bearing; 20. first tapered roller bearing; 21. lower bearing cover; 22. second tapered roller bearing; 23. second adjusting washer; 24. flange. 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 3 A hydraulic self-locking structure for a gear milling machine top comprises a casing 1, an outer wall of one side of the casing 1 is provided with a hydraulic self-locking top 2, a hydraulic rotating top 3 and a center positioning top 4, and a locking shaft 5 is provided inside the hydraulic self-locking top 2, a disc spring 6 is provided on the outer wall of the locking shaft 5, and a locking shaft plug 7 is provided on the outer wall of one end of the locking shaft 5, a first adjusting washer 8 is fixedly connected to the outer wall of the top of the locking shaft plug 7, and a locking shaft oil-proof sleeve 9 is provided on the outer wall of the locking shaft 5 at the bottom of the locking shaft plug 7.

[0025] In this embodiment, by updating the design of the structure of the milling machine tip, with the cooperation of the locking shaft 5, disc spring 6, locking shaft plug 7, first adjustment gasket 8 and locking shaft oil-proof sleeve 9, the traditional manual self-locking design is changed to a hydraulic self-locking design, without the need to install a T-screw, which is convenient to operate, improves precision and has a high safety factor.

[0026] Example 2, refer to Figure 3 A hydraulic self-locking structure for a gear milling machine top, a hydraulic rotating top 3 is provided with a swing cylinder 13 inside, and the piston rod of the swing cylinder 13 is fixedly connected with a coupling 14, a rotating shaft core 15 is fixedly connected with the bottom of the coupling 14, and a bearing middle inner spacer 16 and a bearing middle spacer 17 are respectively provided at the top and bottom of the outer wall of the rotating shaft core 15.

[0027] In this embodiment, on the basis of the center positioning center 4, a hydraulic self-locking center 2 and a hydraulic rotating center 3 are added, which are suitable for the turning and grinding of long shaft parts. The entire shaft part can be processed in one clamping, which is convenient and quick to use. The entire gear milling machine center has positioning function, driving function and self-locking function. When clamping the workpiece, there is no need to replace the fixture within a certain range. Compatible clamping of multiple products can be performed, which improves the processing accuracy.

[0028] Reference Figure 2 An O-ring 12 is arranged on the top of the outer wall of the locking shaft 5 , a first U-ring 10 is arranged on the inner wall of the bottom of the O-ring 12 , and a second U-ring 11 is arranged on the bottom of the first U-ring 10 .

[0029] Reference Figure 3 A bearing sleeve 18 is provided at the bottom of the outer wall of the rotating shaft core 15, and a thrust ball bearing 19 is provided on the inner wall of the bearing sleeve 18. A first tapered roller bearing 20 is provided on the outer wall of one end of the rotating shaft core 15, and a second tapered roller bearing 22 is provided on the outer wall of the other end of the rotating shaft core 15.

[0030] Reference Figure 3 A lower bearing cover 21 is fixedly connected to the outer wall of the bottom of the hydraulic rotating top 3 , a second adjusting washer 23 is fixedly connected to the outer wall of the bottom of the hydraulic rotating top 3 , and a flange 24 is installed between the hydraulic rotating top 3 and the swing cylinder 13 .

[0031] Working principle: On the basis of the center positioning top 4, a hydraulic self-locking top 2 and a hydraulic rotating top 3 are added, so that the entire gear milling machine top has positioning function, driving function and self-locking function at the same time, which is suitable for turning and grinding of long shaft parts. At the same time, through the design update of the structure of the gear milling machine top, with the cooperation of the locking shaft 5, disc spring 6, locking shaft plug 7, first adjusting washer 8 and locking shaft oil-proof sleeve 9, the traditional manual self-locking is changed to a hydraulic self-locking design, and hydraulic self-locking can be completed without installing a T-screw.

[0032] The exemplary implementation of the utility model is described in detail with reference to the examples, however, it is understood by those skilled in the art that, without departing from the concept of the utility model, various modifications and alterations may be made to the above-mentioned specific embodiments, and various combinations of the various technical features and structures proposed in the utility model may be made without exceeding the scope of protection of the utility model, which is determined by the attached claims. The foregoing description of the specific exemplary implementation of the utility model is not intended to limit the utility model to the precise form disclosed, and it is obvious that many changes and variations can be made according to the above teachings. The purpose of selecting and describing the exemplary embodiments is to explain the specific principles of the utility model and its practical application, so that those skilled in the art can realize and utilize various different exemplary implementations of the utility model and various different choices and changes. The scope of the utility model is intended to be defined by the claims and their equivalents.

Claims

1. A hydraulic self-locking structure for a gear milling machine center, comprising a housing (1), characterized in that: The outer wall of one side of the casing (1) is provided with a hydraulic self-locking top (2), a hydraulic rotating top (3) and a center positioning top (4), and a locking shaft (5) is provided inside the hydraulic self-locking top (2), the outer wall of the locking shaft (5) is provided with a disc spring (6), and the outer wall of one end of the locking shaft (5) is provided with a locking shaft plug (7), the top outer wall of the locking shaft plug (7) is fixedly connected with a first adjusting washer (8), and the outer wall of the locking shaft (5) is provided with a locking shaft oil-proof sleeve (9) at the bottom of the locking shaft plug (7); The hydraulic rotating top (3) is provided with a swing cylinder (13) inside, and the piston rod of the swing cylinder (13) is fixedly connected to a coupling (14), the bottom of the coupling (14) is fixedly connected to a rotating shaft core (15), and the top and bottom of the outer wall of the rotating shaft core (15) are respectively provided with a bearing middle inner spacer (16) and a bearing middle spacer (17).

2. The hydraulic self-locking structure of the gear milling machine top according to claim 1, characterized in that: An O-ring (12) is arranged on the top of the outer wall of the locking shaft (5).

3. The hydraulic self-locking structure of the gear milling machine top according to claim 2 is characterized in that: A first U-shaped ring (10) is arranged on the inner wall of the bottom of the O-shaped ring (12), and a second U-shaped ring (11) is arranged on the bottom of the first U-shaped ring (10).

4. The hydraulic self-locking structure of the gear milling machine top according to claim 1, characterized in that: A bearing sleeve (18) is arranged at the bottom of the outer wall of the rotating shaft core (15), and a thrust ball bearing (19) is arranged on the inner wall of the bearing sleeve (18).

5. The hydraulic self-locking structure of the gear milling machine top according to claim 1, characterized in that: A first tapered roller bearing (20) is disposed on the outer wall of one end of the rotating shaft core (15), and a second tapered roller bearing (22) is disposed on the outer wall of the other end of the rotating shaft core (15).

6. The hydraulic self-locking structure of the gear milling machine top according to claim 1, characterized in that: A lower bearing pressure cover (21) is fixedly connected to the outer wall of the bottom of the hydraulic rotating center (3).

7. The hydraulic self-locking structure of the gear milling machine top according to claim 1, characterized in that: A second adjusting washer (23) is fixedly connected to the outer wall of the bottom of the hydraulic rotating center (3).

8. The hydraulic self-locking structure of the gear milling machine top according to claim 1, characterized in that: A flange (24) is installed between the hydraulic rotating center (3) and the swing cylinder (13).

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