Self-lubricating mechanism of lathe tailstock

Abstract

The self-lubricating mechanism comprises a tailstock main body, the tail end of the tailstock main body is rotationally connected with a handle wheel, the inner wall of the upper end of the tailstock main body is provided with a spiral liquid conveying groove, the inner side of the upper end of the tailstock main body is provided with a transmission sleeve, the inner side of the transmission sleeve is provided with a transmission screw rod, and the inner side of the transmission screw rod is provided with a transmission shaft. A center is fixedly installed at the front end of the transmission sleeve, a plurality of U-shaped grooves are formed in the outer surface of the transmission sleeve, and a liquid storage tank is fixedly installed on the inner side of the bottom end of the tailstock body. A pressurizing box is installed on the inner side of the bottom end of the liquid storage box, a pressurizing block is installed on the inner side of one end of the pressurizing box, a supporting spring is arranged on one side of the pressurizing block, and a drawing rod is installed on the inner side of the supporting spring. The self-lubricating tailstock has the advantages that the sleeve structure in the tailstock is self-lubricated in an automatic pressurizing mode, and lubricating liquid can be recycled.

Description

Technical Field

[0001] The utility model relates to the field of lathe tailstocks, in particular to a self-lubricating mechanism of a lathe tailstock. Background Art

[0002] A lathe is a machine that mainly uses a turning tool to turn a rotating workpiece. As the core component of a CNC lathe, the tailstock is often fixed to the tail of the existing lathe. The tailstock structure of the lathe is mainly composed of a base, a body, a tailstock body, a sliding shoe, a slide plate, a top plate, and an adjustment nut. When machining shaft parts, the top of the tailstock is pressed tightly against the workpiece to ensure the stability of the machining. The movement of the tailstock includes the movement of the tailstock body and the movement of the tailstock sleeve. In the application of the machine tool tailstock, the contact part between the tailstock and the machine tool is usually lubricated.

[0003] However, in the prior art, when the sleeve in the tailstock is in operation, the tailstock and the screw are prone to rust and become stuck, and it is inconvenient to add lubricating fluid during the rotation of the screw. Utility Model Content

[0004] The technical problem to be solved by the utility model is to provide a self-lubricating mechanism for the tailstock of a lathe. In order to solve the above technical problem, the technical solution of the utility model is:

[0005] A self-lubricating mechanism for a lathe tailstock, comprising a tailstock body, the tail end of the tailstock body is rotatably connected to a handle wheel, the inner wall of the upper end of the tailstock body is provided with a spiral infusion groove, a transmission sleeve is installed on the inner side of the upper end of the tailstock body, a transmission screw is installed on the inner side of the transmission sleeve, a top is fixedly installed on the front end of the transmission sleeve, a plurality of U-shaped grooves are provided on the outer surface of the transmission sleeve, and a liquid storage tank is fixedly installed on the inner side of the bottom end of the tailstock body;

[0006] A pressurizing box is installed on the inner side of the bottom end of the liquid storage tank, a pressurizing block is installed on the inner side of one end of the pressurizing box, a support spring is provided on one side of the pressurizing block, a pull rod is installed on the inner side of the support spring, a filter box is installed on the inner side of the upper end of the liquid storage tank, and a filter assembly is provided on the inner side of the filter box.

[0007] Preferably, the pressurizing box is connected to the interior of the upper end of the tailstock body through a liquid injection pipe, and the filtering box is connected to the interior of the upper end of the tailstock body through a return pipe.

[0008] Preferably, the pressurizing box and the filter box are both fixedly connected to the liquid storage box, the filter box is through-connected to the inside of the pressurizing box, and a one-way valve is provided on the inner side of the bottom end of the filter box.

[0009] Preferably, one end of the pulling rod passes through the tailstock body and the support spring and is threadedly connected to the pressure block, a sealing ring is provided between the pressure block and the pressure box, and the pressure block is connected to the tailstock body through the support spring.

[0010] Preferably, the filter assembly is composed of a plurality of filter screens, the plurality of filter screens are snap-fitted to the filter box, and the interiors of the pressurizing box and the filter box are filled with lubricating liquid.

[0011] Preferably, a sealing ring is provided on the outer side of the front end of the transmission sleeve and the tailstock body, and the transmission sleeve is connected to the transmission screw by threads.

[0012] Compared with the prior art, the utility model has the following advantages:

[0013] 1. The pressurizing box and the filter box are filled with lubricating liquid. By pulling the pull rod and the pressurizing block, the pressurizing block can continuously pressurize the lubricating liquid inside the pressurizing box under the support of the support spring. A one-way valve is provided between the pressurizing box and the filter box, so that the pressurizing box can continuously transport the lubricating liquid to the upper end of the tailstock body through the injection pipe to realize self-lubricating operation;

[0014] 2. When the handle wheel drives the transmission screw to rotate and drive the transmission sleeve and the top to slide, the U-shaped groove and the spiral infusion groove can automatically transport the lubricating fluid to achieve continuous lubrication between the tailstock body, the transmission sleeve and the transmission screw, and then the lubricating fluid is returned to the inner side of the filter box through the return pipe, and the lubricating fluid is filtered through the filter assembly to realize the circulation operation of the lubricating fluid. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0016] Figure 2 It is a schematic diagram of the cross-sectional structure of the utility model as a whole;

[0017] Figure 3 It is a partial cross-sectional structural schematic diagram of the transmission screw of the utility model;

[0018] Figure 4 It is a schematic diagram of the cross-sectional structure of the liquid storage tank of the utility model.

[0019] In the figure: 1. Tailstock body; 2. Handle wheel; 3. Center; 4. Transmission sleeve; 5. Liquid storage tank; 6. Pull-out rod; 7. Reflux pipe; 8. Transmission screw; 9. Pressurizing box; 10. Filter box; 11. Support spring; 12. Pressurizing block; 13. Filter assembly; 14. Liquid injection tube; 15. U-shaped groove; 16. Spiral infusion groove. DETAILED DESCRIPTION

[0020] The specific implementation methods of the present invention are further described below in conjunction with the accompanying drawings. It should be noted that the description of these implementation methods is used to help understand the present invention, but does not constitute a limitation of the present invention. In addition, the technical features involved in each implementation method of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0021] like Figures 1 to 3 As shown, the self-lubricating mechanism of the tailstock of a lathe described in the utility model comprises a tailstock body 1, the tail end of the tailstock body 1 is rotatably connected with a handle wheel 2, a transmission sleeve 4 is installed on the inner side of the upper end of the tailstock body 1, a transmission screw 8 is installed on the inner side of the transmission sleeve 4, a sealing ring is provided on the outer side of the front end of the transmission sleeve 4 and the tailstock body 1, the transmission sleeve 4 and the transmission screw 8 are threadedly connected, a top 3 is fixedly installed on the front end of the transmission sleeve 4, a spiral infusion groove 16 is provided on the inner wall of the upper end of the tailstock body 1, and a plurality of U-shaped grooves 15 are provided on the outer surface of the transmission sleeve 4, so that when the handle wheel 2 drives the transmission screw 8 to rotate and drive the transmission sleeve 4 and the top 3 to slide, the U-shaped groove 15 and the spiral infusion groove 16 can automatically transport the lubricating fluid to achieve continuous lubrication between the tailstock body 1, the transmission sleeve 4 and the transmission screw 8.

[0022] As the preferred technical solution of this embodiment, Figure 2 As shown, a liquid storage tank 5 is fixedly installed on the inner side of the bottom end of the tailstock main body 1, a pressurizing tank 9 is installed on the inner side of the bottom end of the liquid storage tank 5, and a filter box 10 is installed on the inner side of the upper end of the liquid storage tank 5. The pressurizing tank 9 is connected to the interior of the upper end of the tailstock main body 1 through an injection pipe 14, and the filter box 10 is connected to the interior of the upper end of the tailstock main body 1 through a return pipe 7. The pressurizing tank 9 and the filter box 10 are both fixedly connected to the liquid storage tank 5, and the filter box 10 is connected to the interior of the pressurizing tank 9. A one-way valve is provided on the inner side of the bottom end of the filter box 10, and the interiors of the pressurizing tank 9 and the filter box 10 are filled with lubricating liquid, so that the pressurizing tank 9 can continuously transport the lubricating liquid to the interior of the upper end of the tailstock main body 1 through the injection pipe 14 to achieve self-lubricating operation.

[0023] As the preferred technical solution of this embodiment, Figure 2 As shown, a filter assembly 13 is provided inside the filter box 10. The filter assembly 13 is composed of a plurality of filter screens. The plurality of filter screens are snap-fitted and installed with the filter box 10. The filter assembly 13 filters the lubricating fluid to realize the circulation operation of the lubricating fluid.

[0024] As the preferred technical solution of this embodiment, Figure 2 and Figure 4As shown, a pressurizing block 12 is installed on the inner side of one end of the pressurizing box 9, a support spring 11 is provided on one side of the pressurizing block 12, a pull rod 6 is installed on the inner side of the support spring 11, one end of the pull rod 6 passes through the tailstock body 1 and the support spring 11 and is connected to the pressurizing block 12 by a thread, a sealing ring is provided between the pressurizing block 12 and the pressurizing box 9, the pressurizing block 12 is connected to the tailstock body 1 by the support spring 11, and by pulling the pull rod 6 and the pressurizing block 12, the pressurizing block 12 can continuously pressurize the lubricating fluid inside the pressurizing box 9 under the support of the support spring 11.

[0025] Working principle: the liquid storage tank 5 is fixed on the inner side of the bottom end of the tailstock body 1, and a pressurizing tank 9 and a filter box 10 are installed on the inner side of the liquid storage tank 5, so that the pressurizing tank 9 is connected with the interior of the upper end of the tailstock body 1 through the injection pipe 14, and the filter box 10 is connected with the interior of the upper end of the tailstock body 1 through the return pipe 7. The interiors of the pressurizing tank 9 and the filter box 10 are filled with lubricating liquid. By pulling the pulling rod 6 and the pressurizing block 12, the pressurizing block 12 can continuously pressurize the lubricating liquid inside the pressurizing tank 9 under the support of the support spring 11;

[0026] A one-way valve is provided between the pressurizing box 9 and the filter box 10, so that the pressurizing box 9 can continuously deliver lubricating liquid to the interior of the upper end of the tailstock body 1 through the injection pipe 14, thereby realizing self-lubricating operation.

[0027] A spiral infusion groove 16 is provided on the inner wall of the upper end of the tailstock body 1, and a plurality of U-shaped grooves 15 are provided on the outer surface of the transmission sleeve 4, so that when the handle wheel 2 drives the transmission screw 8 to rotate and drive the transmission sleeve 4 and the top 3 to slide, the U-shaped groove 15 and the spiral infusion groove 16 can automatically transport the lubricating liquid to achieve continuous lubrication between the tailstock body 1, the transmission sleeve 4 and the transmission screw 8;

[0028] The lubricating liquid is then returned to the inner side of the filter box 10 through the reflux pipe 7 and filtered by the filter assembly 13 to realize the circulation operation of the lubricating liquid.

[0029] The embodiments of the present invention are described in detail above with reference to the accompanying drawings, but the present invention is not limited to the described embodiments. For those skilled in the art, various changes, modifications, substitutions and variations of these embodiments are made without departing from the principles and spirit of the present invention, and still fall within the scope of protection of the present invention.

Claims

1. A self-lubricating mechanism for a lathe tailstock, comprising a tailstock body (1), characterized in that: The tail end of the tailstock body (1) is rotatably connected to a handle wheel (2); the inner wall of the upper end of the tailstock body (1) is provided with a spiral infusion groove (16); a transmission sleeve (4) is installed on the inner side of the upper end of the tailstock body (1); a transmission screw (8) is installed on the inner side of the transmission sleeve (4); a top (3) is fixedly installed on the front end of the transmission sleeve (4); a plurality of U-shaped grooves (15) are provided on the outer surface of the transmission sleeve (4); and a liquid storage tank (5) is fixedly installed on the inner side of the bottom end of the tailstock body (1); A pressurizing box (9) is installed on the inner side of the bottom end of the liquid storage box (5), a pressurizing block (12) is installed on the inner side of one end of the pressurizing box (9), a support spring (11) is provided on one side of the pressurizing block (12), a pull rod (6) is installed on the inner side of the support spring (11), a filter box (10) is installed on the inner side of the upper end of the liquid storage box (5), and a filter assembly (13) is provided on the inner side of the filter box (10).

2. The self-lubricating mechanism of the lathe tailstock according to claim 1, characterized in that: The pressurizing box (9) is connected to the interior of the upper end of the tailstock body (1) via a liquid injection pipe (14), and the filtering box (10) is connected to the interior of the upper end of the tailstock body (1) via a return pipe (7).

3. The self-lubricating mechanism of the lathe tailstock according to claim 2, characterized in that: The pressurizing box (9) and the filter box (10) are both fixedly connected to the liquid storage box (5); the filter box (10) is connected to the inside of the pressurizing box (9); and a one-way valve is provided on the inner side of the bottom end of the filter box (10).

4. The self-lubricating mechanism of a lathe tailstock according to claim 1, characterized in that: One end of the pulling rod (6) passes through the tailstock body (1) and the support spring (11) and is connected to the pressure block (12) by a thread. A sealing ring is provided between the pressure block (12) and the pressure box (9). The pressure block (12) is connected to the tailstock body (1) by the support spring (11).

5. The self-lubricating mechanism of the lathe tailstock according to claim 1, characterized in that: The filter assembly (13) is composed of a plurality of filter screens, and the plurality of filter screens are mounted in a snap-fit ​​manner with the filter box (10), and the interiors of the pressurizing box (9) and the filter box (10) are filled with lubricating liquid.

6. The self-lubricating mechanism of a lathe tailstock according to claim 1, characterized in that: A sealing ring is provided on the outer side of the front end of the transmission sleeve (4) and the tailstock body (1), and the transmission sleeve (4) is connected to the transmission screw (8) via threads.

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