Lathe ejector pin capable of improving turning precision

Abstract

The utility model relates to the technical field of lathe machining, and discloses a lathe centre capable of improving turning precision, which comprises an insertion handle, a centre is arranged in the insertion handle, the insertion handle is rotatably connected with the centre through a first bearing set and a second bearing set, a top head is inserted in the centre, and the first bearing set is connected with the second bearing set. A spring is fixedly installed in the center, a movable block is fixedly installed at one end of the spring, a limiting rod is fixedly arranged in the movable block in a penetrating mode, a limiting groove matched with the limiting rod is formed in the top head, the first bearing set is composed of three bearings, and the first bearing set is fixedly connected with the movable block. One end of the limiting rod can penetrate out of the tip and is fixedly connected with a pull ring; when the ejector head is damaged, a worker can pull the pull ring, and the pull ring can control the limiting rod to be separated from the limiting groove, so that the worker can quickly detach the ejector head for replacement, and resource waste is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of lathe processing, in particular to a lathe ejector pin for improving turning accuracy. Background Art

[0002] At present, during lathe turning, in order to center the workpiece and bear the weight of the workpiece and the cutting force of the tool on the workpiece, an ejector is often required as an auxiliary tool to maintain the stability of the workpiece during machining.

[0003] When turning different workpieces, it is sometimes necessary to replace different ejector heads for use. Most of the existing ejector heads adopt an integrated design. Once the ejector head is damaged, the entire ejector head will be scrapped, resulting in a waste of resources. Therefore, how to design a lathe ejector head that improves turning accuracy has become a problem that we currently need to solve. Utility Model Content

[0004] 1. Technical issues to be resolved

[0005] In view of the deficiencies in the prior art, the utility model provides a lathe ejector pin for improving turning accuracy, thereby solving the problems mentioned in the above background technology.

[0006] (II) Technical solution

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a lathe thimble for improving turning accuracy, comprising an insert handle, a top is arranged inside the insert handle, the insert handle and the top are rotatably connected via a first bearing group and a second bearing group, a top head is inserted into the top head, a spring is fixedly installed inside the top head, a moving block is fixedly installed at one end of the spring, a limit rod is fixedly penetrated inside the moving block, and a limit groove matching the limit rod is opened inside the top head.

[0008] Preferably, the first bearing group consists of three bearings, and the second bearing group consists of five bearings.

[0009] Preferably, one end of the limiting rod can penetrate to the outside of the top and be fixedly connected with a pull ring.

[0010] Preferably, sliding blocks are fixedly mounted on opposite sides of the moving block, and a sliding groove matched with the sliding blocks is provided inside the top.

[0011] Preferably, a heat sink is fixedly installed inside the insert handle.

[0012] Preferably, a sealing gasket is fixedly mounted on the outer surface of the limiting rod, a sealing groove matched with the sealing gasket is formed on the outer surface of the tip, and the sealing gasket is arranged inside the sealing groove.

[0013] (III) Beneficial effects

[0014] The utility model provides a lathe ejector pin for improving turning accuracy, which has the following beneficial effects:

[0015] First, when the jack is damaged, the staff can pull the pull ring, which can control the limit rod and the limit groove to separate from each other, so that the staff can quickly remove the jack for replacement, reducing resource waste.

[0016] Second, when in use, the first bearing group consisting of three bearings and the second bearing group consisting of five bearings can make the center rotate more smoothly, thereby improving the turning accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0018] Figure 2 This is a schematic diagram of the front cross-sectional structure of the utility model;

[0019] Figure 3 For this utility model Figure 2 Enlarged structural diagram at A in the middle.

[0020] In the figure: 1, handle; 2, center; 3, first bearing group; 4, second bearing group; 5, top; 6, spring; 7, moving block; 8, limit rod; 9, pull ring; 10, slider; 11, heat sink; 12, sealing gasket. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0023] In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present utility model, "multiple" means two or more, unless otherwise clearly and specifically defined.

[0024] like Figure 1-3 As shown, the utility model provides a technical solution: a lathe thimble for improving turning accuracy, including an insert handle 1, a top 2 is arranged inside the insert handle 1, the insert handle 1 and the top 2 are rotatably connected through a first bearing group 3 and a second bearing group 4, the first bearing group 3 is composed of three bearings, and the second bearing group 4 is composed of five bearings. During use, the first bearing group 3 composed of three bearings and the second bearing group 4 composed of five bearings can make the top 2 rotate more smoothly, thereby improving turning accuracy. A heat sink 11 is fixedly installed inside the insert handle 1. When in use, the heat generated in the insert handle 1 can be transferred to the outside through the heat sink 11.

[0025] A plug 5 is inserted into the interior of the top 2, a spring 6 is fixedly installed inside the top 2, a moving block 7 is fixedly installed at one end of the spring 6, a limiting rod 8 is fixedly penetrated inside the moving block 7, and a limiting groove adapted to the limiting rod 8 is opened inside the plug 5. One end of the limiting rod 8 can pass through the outside of the top 2 and is fixedly connected to a pull ring 9, which can facilitate the staff to pull the limiting rod 8 to move.

[0026] Slide blocks 10 are fixedly installed on opposite sides of the moving block 7. A slide groove matching the slide block 10 is provided inside the top 2. The slide block 10 and the slide groove can limit the moving range of the moving block 7 and make the moving block 7 move more smoothly. A sealing gasket 12 is fixedly installed on the outer surface of the limit rod 8. A sealing groove matching the sealing gasket 12 is provided on the outer surface of the top 2. The sealing gasket 12 is arranged inside the sealing groove. The sealing gasket 12 can increase the sealing performance and reduce the entry of foreign objects into the top 2.

[0027] The working process of the utility model: when in use, the first bearing group 3 composed of three bearings and the second bearing group 4 composed of five bearings can make the top 2 rotate more smoothly, thereby improving the turning accuracy. When the top head 5 needs to be replaced, the staff can pull the pull ring 9, the pull ring 9 can drive the limit rod 8 to move, and the limit rod 8 can drive the moving block 7 to squeeze the spring 6 and separate from the limit groove, so that the staff can quickly remove the top head 5 for replacement, reducing resource waste.

[0028] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0029] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A lathe ejector for improving turning accuracy, comprising an insert handle (1), characterized in that: The inserting handle (1) is provided with a top point (2) inside, the inserting handle (1) and the top point (2) are rotatably connected via a first bearing group (3) and a second bearing group (4), a plug head (5) is inserted into the top point (2), a spring (6) is fixedly installed inside the top point (2), a moving block (7) is fixedly installed at one end of the spring (6), a limiting rod (8) is fixedly penetrated inside the moving block (7), and a limiting groove matched with the limiting rod (8) is opened inside the plug head (5).

2. The lathe ejector for improving turning accuracy according to claim 1, characterized in that: The first bearing group (3) consists of three bearings, and the second bearing group (4) consists of five bearings.

3. The lathe ejector for improving turning accuracy according to claim 1, characterized in that: One end of the limiting rod (8) can penetrate the outside of the top end (2) and is fixedly connected with a pull ring (9).

4. The lathe ejector for improving turning accuracy according to claim 1, characterized in that: Slide blocks (10) are fixedly mounted on opposite sides of the moving block (7), and a slide groove matching the slide blocks (10) is provided inside the top end (2).

5. The lathe ejector for improving turning accuracy according to claim 1, characterized in that: A heat sink (11) is fixedly mounted inside the inserting handle (1).

6. The lathe ejector for improving turning accuracy according to claim 1, characterized in that: A sealing gasket (12) is fixedly mounted on the outer surface of the limiting rod (8), a sealing groove matched with the sealing gasket (12) is opened on the outer surface of the tip (2), and the sealing gasket (12) is arranged inside the sealing groove.

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