A powerful centering static pressure spindle device for gear shaping machine

Abstract

The utility model discloses a strong centering static pressure spindle device for a gear shaping machine, comprising: a static pressure spindle part, the static pressure spindle part comprises a middle spindle and a static pressure bearing; the static pressure bearing is symmetrically fixedly connected to the end of the middle spindle; an oil filling part, the oil filling part comprises an oil filling column arranged above the outer surface of the static pressure bearing; an oil filling filter part, the oil filling filter part comprises a lower filter screen, an upper filter screen, and a movable rope; the lower filter screen is slidably connected to the lower part of the oil filling column, and the upper filter screen is slidably connected to the upper part of the oil filling column, and one end of the movable rope is fixed to the end of the upper filter screen. The utility model solves the problem that the static pressure spindle of the existing gear shaping machine accessory needs to be oiled during use, and the oil filling process directly inputs the external oil supply into the static pressure bearing through the pipe, and if the oil supply contains fine particles and impurities, the actual use effect of the static pressure spindle is affected.

Description

Technical Field

[0001] The utility model relates to the technical field of gear shaping machine accessories, in particular to a strong centering static pressure main shaft device for a gear shaping machine. Background Art

[0002] The gear shaping machine is a metal cutting machine tool used to process internal and external spur and helical cylindrical gears and other toothed parts. The hydrostatic spindle is an accessory of the gear shaping machine. It is a device that achieves high-speed rotation based on the principle of gas hydrostatic balance. It has the advantages of high rigidity, stable high-speed rotation, automatic compensation and no friction.

[0003] However, it still has the following disadvantages in actual use:

[0004] The hydrostatic spindle, an accessory of the existing gear shaping machine, requires oil filling at the end of the hydrostatic bearing during use. The oil filling process directly inputs the external oil supply into the hydrostatic bearing through a pipe. If the oil supply contains fine particles of impurities, the actual use effect of the hydrostatic spindle will be affected. Utility Model Content

[0005] The utility model aims to provide a powerful centering static pressure spindle device for a gear shaping machine, so as to solve the problem raised in the above background technology that the static pressure spindle of the existing gear shaping machine accessories needs to be oiled at the end of the static pressure bearing during use, and the oiling process directly inputs the external oil supply into the static pressure bearing through a pipe. If the oil supply contains fine particulate impurities, the actual use effect of the static pressure spindle is affected.

[0006] In order to solve the above technical problems, the utility model is realized by the following technical solutions:

[0007] The utility model is a strong centering static pressure spindle device for a gear shaping machine, comprising:

[0008] A static pressure main shaft portion, the static pressure main shaft portion comprising a middle main shaft and a static pressure bearing;

[0009] The static pressure bearing is symmetrically fixedly connected to the end of the middle main shaft;

[0010] An oil injection portion, the oil injection portion comprising an oil injection column arranged above the outer surface of the static pressure bearing;

[0011] An oil filling and filtering part, the oil filling and filtering part comprising a lower filter screen, an upper filter screen, and a movable rope;

[0012] The lower filter screen is slidably connected to the lower part of the oil filling column, and the upper filter screen is slidably connected to the upper part of the oil filling column, and one end of the movable rope is fixed to the end of the upper filter screen.

[0013] Furthermore, the apertures of the lower filter screen and the upper filter screen increase gradually, and the upper end of the lower filter screen is fixedly connected to a connecting column, and the upper end of the connecting column is fixed to the lower end of the upper filter screen.

[0014] Furthermore, it also includes a locking indicator, which includes a ring frame and a pressure sensor;

[0015] The ring frame is arranged below the outer surface of the oil filling column, and the pressure sensor is fixedly connected to the upper end of the ring frame. The pressure sensor has a built-in transmitter terminal that is wirelessly connected to an external control terminal.

[0016] Furthermore, the static pressure main shaft portion also includes an end connecting shaft, a guide port, and a buckle groove;

[0017] The end connecting axis is symmetrically fixedly connected to the end of the middle main shaft, and the guide port is equidistantly connected to the middle of the static pressure bearing, and the buckle groove is opened on the upper part of the outer surface of the static pressure bearing.

[0018] Furthermore, the oil filling part also includes a buckle seat and an oil filling pipe;

[0019] The lower end of the buckle seat is buckled and connected to the buckle groove, and the oil filling pipe is threadedly connected to the outside of the oil filling column. The oil filling column, the oil filling pipe, the buckle seat, and the middle of the hydrostatic bearing are connected, and the oil filling column is fixedly connected to the upper end of the buckle seat, and the lower end of the inner wall of the oil filling pipe is fixed to the other end of the movable rope.

[0020] Furthermore, it also includes a sealing part, which includes a sealing plug, a hexagonal hollow ring, and a rotating handle;

[0021] The plugging head is threadedly connected in the middle of the guide port, and the hexagonal hollow ring is sleeved in the middle of the front side of the plugging head, and the rotating handle is symmetrically sleeved in the middle of both sides of the hexagonal hollow ring.

[0022] Compared with the prior art, the advantages of the present invention are:

[0023] The utility model adopts the lower filter screen and the upper filter screen to perform graded filtration treatment on the injected oil, which can prevent the fine impurity particles contained in the injected oil from affecting the operation effect of the static pressure main shaft, and the graded filtration can reduce the probability of blockage. At the same time, a movable rope is used to connect the upper filter screen and the oil injection pipe. When the oil injection pipe is disassembled, the upper filter screen and the lower filter screen can be taken out, and the impurities can be cleaned promptly and actively by personnel. It has strong applicability and improves the use effect.

[0024] Based on the above beneficial effects, when tightening the oil filling pipe, whether the oil filling pipe is tightened is judged by whether the pressure sensor is in contact with the lower end of the oil filling pipe, which can ensure that the oil filling pipe is always in a tightened state and avoid the oil filling pipe from falling off and causing oil leakage. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for describing the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0026] Figure 1 This is a schematic diagram of the appearance of the utility model;

[0027] Figure 2 It is a schematic diagram of the static pressure main shaft part of the utility model;

[0028] Figure 3 This is a schematic diagram of the oil filling part of the utility model;

[0029] Figure 4 It is a schematic diagram of the oil filling and filtering part of the utility model.

[0030] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0031] 11. Middle main shaft; 12. End connecting shaft; 13. Hydrostatic bearing; 14. Guide port; 15. Buckle groove; 21. Buckle seat; 22. Oil filling column; 23. Oil filling pipe; 31. Lower filter screen; 32. Upper filter screen; 33. Movable rope; 41. Ring frame; 42. Pressure sensor; 51. Sealing head; 52. Hexagonal hollow ring; 53. Turning handle. DETAILED DESCRIPTION

[0032] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below with reference to the accompanying drawings.

[0033] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific implementation methods disclosed below.

[0034] In order to make the purpose, technical solution and advantages of the present invention more clear, the implementation mode of the present invention will be further described in detail below with reference to the accompanying drawings.

[0035] See also Figure 1-4 As shown, this embodiment is a strong centering static pressure spindle device for a gear shaping machine, comprising:

[0036] The static pressure main shaft part includes a middle main shaft 11 and a static pressure bearing 13;

[0037] The static pressure bearing 13 is symmetrically fixedly connected to the end of the middle main shaft 11;

[0038] The middle main shaft 11 is the main mounting carrier of the hydrostatic main shaft part, and the hydrostatic bearing 13 cooperates with the external injection of lubricating oil to form a pressure oil film to bear the load;

[0039] The static pressure main shaft portion also includes an end connecting shaft 12, a guide port 14, and a buckle groove 15;

[0040] The end connecting shaft 12 is symmetrically fixedly connected to the end of the middle main shaft 11, and the guide port 14 is equidistantly connected to the middle of the static pressure bearing 13, and the buckle groove 15 is opened on the upper part of the outer surface of the static pressure bearing 13;

[0041] The end connecting shaft 12 connects the hydrostatic spindle device to an external device, the guide port 14 is used to introduce lubricating oil into the hydrostatic bearing 13, and the buckle groove 15 fixes the buckle seat 21 described below;

[0042] An oil filling portion, the oil filling portion comprising an oil filling column 22 arranged above the outer surface of the static pressure bearing 13;

[0043] The oil filling part also includes a buckle seat 21 and an oil filling pipe 23;

[0044] The lower end of the buckle seat 21 is buckled and connected in the buckle groove 15, and the oil filling pipe 23 is threadedly connected to the outer side of the oil filling column 22. The oil filling column 22, the oil filling pipe 23, the buckle seat 21, and the middle of the static pressure bearing 13 are connected, and the oil filling column 22 is fixedly connected to the upper end of the buckle seat 21. The lower end of the inner wall of the oil filling pipe 23 is fixed to the other end of the movable rope 33.

[0045] The buckle seat 21 and the buckle groove 15 are buckled to fix the entire oil filling part and to install the oil filling column 22. The oil filling column 22 is used in conjunction with the oil filling pipe 23 to introduce the lubricating oil injected from the outside into the static pressure bearing 13.

[0046] An oil filling and filtering part, the oil filling and filtering part comprises a lower filter screen 31, an upper filter screen 32, and a movable rope 33;

[0047] The lower filter screen 31 is slidably connected to the lower part of the oil filling column 22, and the upper filter screen 32 is slidably connected to the upper part of the oil filling column 22, and one end of the movable rope 33 is fixed to the end of the upper filter screen 32;

[0048] The upper filter screen 32 and the lower filter screen 31 filter the injected lubricant to grade the impurity particles, and the movable rope 33 connects the upper filter screen 32 with the oil filling pipe 23. After the oil filling pipe 23 is disassembled, the upper filter screen 32 and the lower filter screen 31 can be conveniently and actively pulled out to actively clean the impurities.

[0049] The apertures of the lower filter screen 31 and the upper filter screen 32 are gradually increased, and the upper end of the lower filter screen 31 is fixedly connected with a connecting column 34, and the upper end of the connecting column 34 is fixed to the lower end of the upper filter screen 32;

[0050] The gradually increasing aperture setting can satisfy the requirement of graded filtration of impurities injected into the lubricant, and the connecting column 34 fixes the upper filter screen 32 and the lower filter screen 31;

[0051] It also includes a sealing portion, which includes a sealing plug 51, a hexagonal hollow ring 52, and a rotating handle 53;

[0052] The plugging head 51 is threadedly connected to the middle of the guide port 14, and the hexagonal hollow ring 52 is sleeved in the middle of the front of the plugging head 51, and the rotating handle 53 is symmetrically sleeved in the middle of both sides of the hexagonal hollow ring 52;

[0053] The plugging head 51 seals the guide port 14 externally to prevent the introduced lubricant from leaking. The hexagonal hollow ring 52 cooperates with the rotating handle 53 to conveniently and quickly disassemble and assemble the plugging head 51, saving time and effort.

[0054] Working principle: After the middle main shaft 11 is connected to the external equipment through the end connecting shaft 12;

[0055] At this time, the buckle seat 21 is placed into the buckle groove 15, and the oil injection column 22 is structurally installed and fixed by buckling, and the oil injection pipe 23 is threaded on the upper surface of the outer surface of the oil injection column 22, and the oil injection pipe 23 is connected to the external oil supply equipment, and the lubricant is injected into the static pressure bearing 13, and guided to the connection between the static pressure bearing 13 and the middle main shaft 11 through the guide port 14. Before the lubricant is introduced, the hexagonal hollow ring 52 can be used in conjunction with the rotating handle 53 to thread the plug head 51 in the guide port 14;

[0056] During the process of injecting lubricating oil, the built-in upper filter screen 32 and lower filter screen 31 filter the injected lubricating oil for graded impurities. When the oil filling pipe 23 is disassembled after injection, the upper filter screen 32 is linked with the movable rope 33 to drive the lower filter screen 31 to move out of the oil filling column 22 to clean the impurities. After the oil filling, the plugging head 51 is also used to plug the reconnected oil filling pipe 23.

[0057] This solution can filter impurities in stages and can actively clean up after filtering impurities to improve the use effect.

[0058] See also Figure 1-4 As shown, this embodiment is based on the above embodiment and further includes a locking indicator, which includes a ring frame 41 and a pressure sensor 42;

[0059] The ring frame 41 is arranged below the outer surface of the oil filling column 22, and the pressure sensor 42 is fixedly connected to the upper end of the ring frame 41. The pressure sensor 42 has a built-in transmitter terminal that is wirelessly connected to an external control terminal.

[0060] The ring frame 41 is used to fix the pressure sensor 42 and detect whether it is in contact with the lower end of the oil filling pipe 23, so as to judge whether the oil filling pipe 23 is in a tightened state.

[0061] Working principle: During the tightening process of the oil filling pipe 23, if the lower end of the oil filling pipe 23 contacts the pressure sensor 42, the external control end receives the data signal under the action of the built-in transmitter. If the two are not in contact, it indicates that the oil filling pipe 23 is not locked in place.

[0062] This solution can ensure that the oil filling pipe 23 is in a tightened state, thereby preventing the lubricant from leaking during the oil filling due to looseness.

[0063] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0064] Finally, it should be noted that the above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein with equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A strong centering static pressure spindle device for a gear shaping machine, characterized in that: include: A static pressure main shaft portion, the static pressure main shaft portion comprising a middle main shaft (11) and a static pressure bearing (13); The static pressure bearing (13) is symmetrically fixedly connected to the end of the middle main shaft (11); An oil injection portion, the oil injection portion comprising an oil injection column (22) arranged above the outer surface of the static pressure bearing (13); An oil injection filter section, the oil injection filter section comprising a lower filter screen (31), an upper filter screen (32), and a movable rope (33); The lower filter screen (31) is slidably connected to the lower part of the oil filling column (22), and the upper filter screen (32) is slidably connected to the upper part of the oil filling column (22), and one end of the movable rope (33) is fixed to the end of the upper filter screen (32).

2. A strong centering static pressure spindle device for a gear shaping machine according to claim 1, characterized in that: The apertures of the lower filter screen (31) and the upper filter screen (32) gradually increase, and the upper end of the lower filter screen (31) is fixedly connected to a connecting column (34), and the upper end of the connecting column (34) is fixed to the lower end of the upper filter screen (32).

3. A strong centering static pressure spindle device for a gear shaping machine according to claim 1, characterized in that: It also includes a locking indicator, which includes a ring frame (41) and a pressure sensor (42); The ring frame (41) is arranged below the outer surface of the oil injection column (22), and the pressure sensor (42) is fixedly connected to the upper end of the ring frame (41). The pressure sensor (42) has a built-in transmitter terminal that is wirelessly connected to an external control terminal.

4. A strong centering static pressure spindle device for a gear shaping machine according to claim 1, characterized in that: The static pressure main shaft portion also includes an end connecting shaft (12), a guide port (14), and a buckle groove (15); The end connecting shaft (12) is symmetrically fixedly connected to the end of the middle main shaft (11), and the guide port (14) is equidistantly connected to the middle of the static pressure bearing (13), and the buckle groove (15) is opened on the upper part of the outer surface of the static pressure bearing (13).

5. The strong centering static pressure spindle device for a gear shaping machine according to claim 1, characterized in that: The oil filling portion also includes a buckle seat (21) and an oil filling pipe (23); The lower end of the buckle seat (21) is buckled and connected to the buckle groove (15), and the oil injection pipe (23) is threadedly connected to the outside of the oil injection column (22); the oil injection column (22), the oil injection pipe (23), the buckle seat (21), and the middle of the static pressure bearing (13) are connected, and the oil injection column (22) is fixedly connected to the upper end of the buckle seat (21); the lower end of the inner wall of the oil injection pipe (23) is fixed to the other end of the movable rope (33).

6. A strong centering static pressure spindle device for a gear shaping machine according to claim 1, characterized in that: It also includes a sealing portion, which includes a sealing plug (51), a hexagonal hollow ring (52), and a rotating handle (53); The plugging head (51) is threadedly connected to the middle of the guide port (14), and the hexagonal hollow ring (52) is sleeved on the middle of the front side of the plugging head (51), and the rotating handle (53) is symmetrically sleeved on the middle of both sides of the hexagonal hollow ring (52).

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