Shaft part surface treatment mechanism based on lathe

Abstract

The utility model provides a shaft part surface treatment mechanism based on a lathe, and aims to solve the technical problem that the machining efficiency cannot be improved when a shaft part with lower surface requirements is machined. The surface treatment mechanism comprises a knife handle detachably arranged on a knife rest of the lathe; one end of the connecting piece is detachably connected with one end of the knife handle; the rolling piece is movably arranged at the other end of the connecting piece and can rotate, the rolling piece can make contact with the surface of the shaft part, the knife handle is installed on the knife rest of a lathe, after turning of the shaft part is finished, the surface treatment mechanism is switched through the knife rest, the rolling piece abuts against the surface of the shaft part, the shaft part is driven by the lathe to rotate, and therefore the surface of the shaft part can be treated. And the surface of the shaft part is extruded and deformed by the rolling part, so that the surface of the shaft part is smoother, and the preset requirement of the shaft part is met. According to the technical scheme, surface treatment can be conducted on the shaft part on the lathe, and therefore the beneficial effect of improving the machining efficiency is achieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of processing the surface of shaft parts, in particular to a shaft part surface treatment mechanism based on lathe. BACKGROUND

[0002] In the machining process, after the general shaft parts are machined on the lathe, they need to be transferred to the grinding machine to polish the surface of the shaft parts, so that the surface roughness reaches a certain requirement, and no matter how much the required surface roughness is, it needs to be transferred to the grinding machine for machining.

[0003] Therefore, the shaft parts with low surface roughness requirement also need to be transferred to the grinding machine for surface processing, so that the machining efficiency cannot be improved under the condition of low precision requirement. UTILITY MODEL CONTENT

[0004] In view of the technical problem that the machining efficiency of shaft parts with low machining surface requirement cannot be improved, the utility model provides a shaft part surface treatment mechanism based on lathe, which replaces the tool on the tool rest of the lathe with a treatment mechanism with a rolling part, so that the surface of the shaft part can be treated on the lathe, thereby improving the machining efficiency.

[0005] The technical scheme of the utility model is:

[0006] A shaft part surface treatment mechanism based on lathe, comprising:

[0007] A tool holder is detachably arranged on the tool rest of the lathe;

[0008] A connecting piece is detachably connected to one end of the tool holder;

[0009] A rolling part is movably arranged on the other end of the connecting piece, the rolling part is rotatable, and the rolling part can contact the surface of the shaft part.

[0010] Optionally, one end of the tool holder is provided with a threaded hole;

[0011] The connecting piece is U-shaped, and the middle part of the connecting piece is matched with the threaded hole on the tool holder through a fastening bolt;

[0012] The rolling part comprises a pressure roller, and the pressure roller is rotatably arranged between the two ends of the connecting piece.

[0013] Optionally, the end of the tool holder provided with the threaded hole has a protruding limiting block;

[0014] The middle part of the connecting piece has a limiting hole matched with the limiting block.

[0015] Optionally, the limiting block is a polygonal structure, and the limiting hole corresponds to the limiting block.

[0016] Optionally, one end of the tool shank is provided with a connecting column, and the outer surface of the connecting column is provided with threads.

[0017] One end of the connecting piece is provided with a threaded hole, the other end is provided with a semispherical recess, and the end of the connecting piece is also provided with an annular cover body, and a rolling ball is movably arranged in the semispherical recess.

[0018] The side of the rolling ball protrudes from the middle part of the cover body.

[0019] Optionally, the inner side of the cover body is provided with a spherical contact surface.

[0020] Optionally, one end of the connecting piece is provided with external threads, and one end of the cover body is provided with internal threads and cooperates with the connecting piece.

[0021] Optionally, the connecting column is provided with a threaded hole, and a fastening bolt is further arranged between the connecting column and the connecting piece.

[0022] Optionally, the threads on the outer surface of the connecting column and the threads inside the connecting column are opposite in spiral direction.

[0023] Optionally, the side of the connecting piece is provided with an oil supply channel, the oil supply channel communicates with the semispherical recess, and a rubber plug is arranged on the oil supply channel.

[0024] Compared with the prior art, the utility model has the beneficial effects that:

[0025] After the tool shank is installed on the tool rest of the lathe, after the turning of the shaft part is finished, the tool rest is switched to the surface treatment mechanism, and the rolling piece abuts against the surface of the shaft part, the shaft part is driven to rotate by the lathe, the rolling piece is extruded against the surface of the shaft part, the surface of the shaft part is more smooth, and the predetermined requirement is reached.

[0026] In the technical scheme, the surface of the shaft part can be treated on the lathe, so that the machining efficiency is improved. BRIEF DESCRIPTION OF DRAWINGS

[0027] In order to more clearly illustrate the technical scheme in the embodiments of the present application or the prior art, the drawings needed in the embodiment or the prior art description will be briefly introduced below, and obviously, the drawings in the following description can also be obtained by those skilled in the art without creative labor.

[0028] Figure 1isometric view of embodiment 1;

[0029] Figure 2 isometric view of embodiment 1;

[0030] Figure 3 isometric view of embodiment 2;

[0031] Figure 4 isometric view of embodiment 2. DETAILED DESCRIPTION

[0032] Hereinafter, only certain exemplary embodiments are described simply. As those skilled in the art can recognize, the described embodiments can be modified in various different ways without departing from the spirit or scope of the present application. Therefore, the drawings and description are considered to be exemplary in nature rather than limiting.

[0033] Furthermore, the terms "first", "second", etc. are used only for descriptive purposes and should not be construed as implying or suggesting relative importance or an implied

[0034] The following disclosure provides many different embodiments, or examples, for implementing different structures of the present application. For the purpose of simplifying the present application, the components and arrangements of the various examples are described. Of course, they are only examples and are presented for the purpose of illustration and description only. Moreover, the present application can repeat reference numerals and / or reference letters in different examples and this repetition is for the purpose of simplicity and clarity and does not in itself dictate a relationship between the various embodiments and / or configurations discussed. Also, the various specific process and material examples provided for in this disclosure are only examples and other processes and / or materials can be used.

[0035] The embodiments of the present application will be described in detail below with reference to the drawings.

[0036] Embodiment 1:

[0037] Referring to Figure 1 and Figure 2The embodiment discloses a lathe-based shaft part surface treatment mechanism, which comprises a tool holder 10, a connecting piece 20 and a rolling piece 30, wherein the tool holder 10 is detachably arranged on a tool rest of a lathe, the mounting mode of the tool holder 10 is the same as that of a common turning tool, the connecting piece 20 is arranged on one end of the tool holder 10, and the rolling piece 30 is rotatably arranged on the connecting piece 20 and can contact the surface of a shaft part to be machined.

[0038] When the turning of the shaft part is completed, the tool rest is rotated, so that the surface treatment mechanism is rotated to a machining position, in the process of use, the lathe is first started, the lathe drives the shaft part to rotate, then the rolling piece 30 is brought into contact with the surface of the shaft part, and is fed and moved at a certain speed. In the process of rotation of the shaft part, the rolling piece 30 also rotates together, and due to the action of the tool rest on the tool holder 10, the rolling piece 30 has a certain pressure on the shaft part, so that the surface of the shaft part is slightly extruded and deformed, so that the surface of the shaft part is smoother, and the predetermined requirement is met.

[0039] In the technical solution, the surface treatment of the shaft part can be carried out on the lathe, the shaft part does not need to be dismounted from the lathe and reinstalled on a grinding machine, and a plurality of process steps are saved, so that the machining efficiency is improved.

[0040] Specifically, one end of the tool holder 10 is provided with a threaded hole, the connecting piece 20 is U-shaped, and the middle part of the connecting piece 20 has a through hole. A fastening bolt 40 is arranged in the through hole in the middle part of the connecting piece 20, and the fastening bolt 40 is matched with the threaded hole on the tool holder 10, so that the connecting piece 20 and the tool holder 10 form a Y-shaped structure.

[0041] The rolling piece 30 comprises a pressure roller 31, both ends of the pressure roller 31 are rotatably arranged on both ends of the connecting piece 20, the axis of the pressure roller 31 is perpendicular to the length direction of the tool holder 10, and in the working process, the axis of the pressure roller 31 is parallel to the axis of the shaft part.

[0042] In the technical solution, the surface of the shaft part is extruded by the pressure roller 31.

[0043] Preferably, the pressure roller 31 comprises a middle extrusion area 311 and two end transition areas 312, the cross section of the transition area 312 is arc-shaped, so that the diameters of both ends of the pressure roller 31 are smaller than the diameter of the middle part. Through the design, damage to the surface of the part caused by the end of the pressure roller 31 in the moving process of the tool rest can be avoided.

[0044] In one specific embodiment,

[0045] The end of the tool holder 10 with the threaded hole is provided with a protruding limiting block 11, and the middle of the connecting piece 20 is provided with a limiting hole 21 matched with the limiting block 11. The threaded hole of the tool holder 10 passes through the middle of the limiting block 11, and the through hole of the connecting piece 20 is communicated with the limiting hole 21.

[0046] In use, the limiting block 11 is embedded in the limiting hole 21, so that the position of the connecting piece 20 relative to the tool holder 10 is fixed, and relative rotation between the connecting piece 20 and the tool holder 10 caused by external force is avoided.

[0047] In this embodiment, the limiting block 11 is a polygonal structure, and the limiting hole 21 is a corresponding polygonal hole. Generally, the limiting block 11 is a quadrilateral or hexagonal structure.

[0048] Embodiment 2

[0049] Referring to Figure 3 and Figure 4 , this embodiment discloses a lathe-based shaft part surface treatment mechanism, which comprises a tool holder 10, a connecting piece 20 and a rolling piece 30. The tool holder 10 is detachably arranged on a tool rest of a lathe, and is installed in the same way as an ordinary turning tool. The connecting piece 20 is arranged on one end of the tool holder 10, and the rolling piece 30 is rotatably arranged on the connecting piece 20 and can contact the surface of the shaft part to be machined.

[0050] When the turning of the shaft part is completed, the tool rest is rotated to rotate the surface treatment mechanism to a machining position. In use, the lathe is first started to drive the shaft part to rotate, and then the rolling piece 30 is brought into contact with the surface of the shaft part and fed and moved at a certain speed. In the process of rotation of the shaft part, the rolling piece 30 also rotates together, and due to the action of the tool rest on the tool holder 10, the rolling piece 30 has a certain pressure on the shaft part, so that the surface of the shaft part is slightly extruded and deformed, so that the surface of the shaft part is smoother, and the predetermined requirement is met.

[0051] In this technical solution, the surface treatment of the shaft part can be performed on the lathe, without the need to dismount the shaft part from the lathe and re-install it on a grinding machine, thereby saving multiple process steps and improving the machining efficiency.

[0052] Specifically, one end of the tool holder 10 is provided with a connecting column 12, and the outer surface of the connecting column 12 is provided with threads. One end of the connecting piece 20 is provided with a threaded hole, and the connecting piece 20 can be connected with the connecting column 12 through the threaded hole. The other end of the connecting piece 20 is provided with a semispherical recess 22, and the end of the connecting piece 20 is also provided with a ring-shaped cover 50. A rolling ball 32 is movably arranged in the semispherical recess 22, and the side portion of the rolling ball 32 protrudes from the middle portion of the cover 50.

[0053] The rolling part 30 is a rolling ball 32, and when in use, the rolling ball 32 is in contact with the surface of the shaft part to process the surface of the shaft part.

[0054] Preferably, the inside of the cover 50 has a spherical contact surface, and through this design, the wear rate of the rolling ball 32 can be reduced.

[0055] In addition, one end of the connecting part 20 provided with the semispherical recess 22 is provided with external threads, and one end of the cover 50 is provided with internal threads, and through the cooperation of the internal threads on the cover 50 and the external threads on the connecting part 20, the detachable connection of the cover 50 and the connecting part 20 is realized.

[0056] In a preferred embodiment, the connecting column 12 is provided with a threaded hole, and the connecting part 20 and the connecting part 20 are further provided with a fastening bolt 40, and through this design, the connection between the connecting part 20 and the connecting column 12 can be strengthened.

[0057] In addition, the threads on the outer surface of the connecting column 12 are opposite to the threads inside the connecting column 12 in the spiral direction, and through this design, the loosening of the connection between the connecting part 20 and the tool handle 10 can be avoided.

[0058] In a preferred embodiment, the side of the connecting part 20 is provided with an oil supply channel 60, the oil supply channel 60 is in communication with the semispherical recess 22, and the oil supply channel 60 is provided with a rubber plug, and through the design of the oil supply channel 60, the semispherical recess 22 can be filled with lubricating oil, so as to reduce the friction coefficient between the rolling ball 32 and the connecting part 20 and the cover 50.

[0059] The above-described embodiments only express the specific implementation of the present application, and the description is more specific and detailed, but it cannot be understood as the limitation of the patent scope of the present application. It should be noted that for ordinary skilled persons in the art, without departing from the concept of the present application, a number of modifications and improvements can be made, which all belong to the protection scope of the present application.

Claims

1. A surface treatment mechanism for shaft parts based on a lathe, characterized in that, include: The tool holder is detachably mounted on the tool post of the lathe; A connector, one end of which is detachably connected to one end of the tool holder; A rolling element is movably mounted on the other end of the connector. The rolling element is rotatable and can contact the surface of the shaft component.

2. The lathe-based shaft part surface treatment mechanism according to claim 1, characterized in that, One end of the tool holder is provided with a threaded hole; The connector is U-shaped, and the middle part of the connector is engaged with the threaded hole on the tool holder by a fastening bolt; The rolling element includes a pressure roller, which is rotatably disposed between the two ends of the connecting element.

3. The lathe-based shaft part surface treatment mechanism according to claim 2, characterized in that, The end of the tool holder with a threaded hole has a protruding limiting block; The connector has a limiting hole in the middle that corresponds to the limiting block.

4. The lathe-based shaft part surface treatment mechanism according to claim 3, characterized in that, The limiting block has a polygonal structure, and the limiting hole corresponds to the limiting block.

5. The lathe-based shaft part surface treatment mechanism according to claim 1, characterized in that: A connecting post is provided at one end of the knife handle, and the outer surface of the connecting post has threads. One end of the connector has a threaded hole, and the other end has a hemispherical groove. The other end of the connector is also provided with an annular cover, and a rolling ball is movably disposed in the hemispherical groove. The side of the rolling ball protrudes from the middle of the cover.

6. The lathe-based shaft part surface treatment mechanism according to claim 5, characterized in that, The inner side of the cover has a spherical contact surface.

7. The lathe-based shaft part surface treatment mechanism according to claim 5, characterized in that, One end of the connector is provided with an external thread, and one end of the cover is provided with an internal thread, which cooperates with the connector.

8. The lathe-based shaft part surface treatment mechanism according to claim 5, characterized in that, The connecting column is provided with a threaded hole, and fastening bolts are also provided between the connecting parts.

9. The lathe-based shaft part surface treatment mechanism according to claim 8, characterized in that, The threads on the outer surface of the connecting post have opposite helical directions to those on its interior.

10. The lathe-based shaft part surface treatment mechanism according to claim 5, characterized in that, The side of the connector is provided with an oil supply channel, which is connected to the hemispherical groove, and a rubber stopper is provided on the oil supply channel.

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