High-precision rotating shaft for cold heading process

Abstract

The invention discloses a high-precision rotating shaft for a cold heading process, and relates to the technical field of rotating shafts. The surface of the shaft body is sleeved with a circular plate, and a cover body is arranged at the top end of the circular plate. An annular groove is formed in the top end of the circular plate, a plurality of through holes are formed in one side of the inner wall of the annular groove, an oil storage block is placed in the annular groove, and an extrusion plate is placed at the top end of the oil storage block; the oil storage block is a sponge block and is annular; the through holes are annularly distributed in the inner wall of the annular groove at equal intervals, and at least two sets of through holes are distributed. By rotating the annular plate, the multiple extrusion rods can be moved to the surface of the extrusion plate to extrude the oil storage block at the bottom end of the extrusion plate, lubricating oil in the oil storage block can be extruded to the position between the shaft body and parts connected with the shaft body through the through holes, the effect of lubricating the rotating shaft is achieved, operation is easy, and use is convenient.

Description

Technical Field

[0001] The invention relates to the technical field of rotating shafts, and in particular to a high-precision rotating shaft using a cold heading process. Background Art

[0002] The cold heading process is an efficient and high-precision metal forming process, which is particularly suitable for the production of standard fasteners such as bolts, screws, nuts, and various precision parts including high-precision shafts. The cold heading process uses the plastic deformation of metal under the action of external force to redistribute and transfer the metal volume through the mold to form parts or blanks of the required shape and size. The process is carried out at room temperature and has the advantages of high material utilization, high production efficiency, high product surface finish and high precision. The current cold heading process high-precision shaft needs to be connected to product parts when in use, so it is often necessary to drip lubricating oil on the shaft to ensure the good rotation performance of the shaft. The dripping of lubricating oil requires manual hand-held refueling equipment to operate, which makes the dripping process of the shaft lubricating oil more complicated. Summary of the invention

[0003] The invention provides a high-precision rotating shaft using a cold heading process, which solves the problems in the background technology.

[0004] In order to achieve the above object, the present invention adopts the following technical solutions: A high-precision rotating shaft using a cold heading process, comprising a shaft body; A circular plate is sleeved on the surface of the shaft body, and a cover body is arranged on the top of the circular plate; An annular groove is provided at the top of the circular plate, and a plurality of through holes are provided on one side of the inner wall of the annular groove. An oil storage block is placed inside the annular groove, and an extrusion plate is placed at the top of the oil storage block.

[0005] As a further description of the above technical solution: The oil storage block is a sponge block, and the oil storage block is annular.

[0006] As a further description of the above technical solution: The through holes are distributed annularly and equidistantly on the inner wall of the annular groove, and there are at least two groups of through holes.

[0007] As a further description of the above technical solution: The top of the cover body is annularly and equidistantly provided with thread grooves, and the top of the cover body is provided with an annular plate, the inner wall of the annular plate is connected with a rack, and the surface of the rack is connected with a gear, and the surface of the gear is connected with an extrusion rod in contact with the top of the extrusion plate.

[0008] As a further description of the above technical solution: The extrusion rod is threadedly connected to the inside of the thread groove.

[0009] As a further description of the above technical solution: A sliding groove is provided at the inner bottom end of the annular plate, and a sliding block is slidably connected inside the sliding groove and is rotationally connected to the bottom end of the extrusion rod.

[0010] As a further description of the above technical solution: The circular plate and the cover body are connected by threads.

[0011] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are: In the present invention, by rotating the annular plate, multiple extrusion rods are moved to the surface of the extrusion plate to squeeze the oil storage block at its bottom end. The lubricating oil inside the oil storage block can be squeezed through the through hole to between the shaft body and the parts connected to it, so as to achieve the effect of lubricating the rotating shaft. The operation is simple and easy to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of a high-precision rotating shaft structure of a cold heading process in the present invention; Figure 2 It is a schematic diagram of the internal structure of the circular plate in the present invention; Figure 3 It is a schematic diagram of the structure of the surface of the cover body in the present invention; Figure 4 It is a schematic diagram of the internal structure of the annular plate in the present invention.

[0013] Legend: Axis body; 2. Circular plate; 3. Cover body; 4. Annular groove; 5. Through hole; 6. Oil storage block; 7. Extrusion plate; 8. Threaded groove; 9. Annular plate; 10. Rack; 11. Gear; 12. Extrusion rod; 13. Slide groove; 14. Slider. DETAILED DESCRIPTION

[0014] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0015] Reference Figure 1-4A high-precision rotating shaft using a cold heading process comprises a shaft body 1, a circular plate 2 is sleeved on the surface of the shaft body 1, and a cover body 3 is arranged on the top of the circular plate 2; an annular groove 4 is opened on the top of the circular plate 2, and a plurality of through holes 5 are opened on one side of the inner wall of the annular groove 4, and an oil storage block 6 is placed inside the annular groove 4, and an extrusion plate 7 is placed on the top of the oil storage block 6. By extruding the extrusion plate 7, the oil storage block 6 at its bottom can be squeezed, so that the lubricating oil inside the oil storage block 6 can be squeezed through the through hole 5 to between the shaft body 1 and the parts, so as to achieve a lubrication effect.

[0016] Furthermore, the oil storage block 6 is a sponge block, and the oil storage block 6 is annular. The sponge-shaped oil storage block 6 is convenient for absorbing and storing lubricating oil.

[0017] Furthermore, the through holes 5 are equidistantly distributed in an annular pattern on the inner wall of the annular groove 4 , and there are at least two groups of through holes 5 , which facilitates the lubricating oil squeezed out of the oil storage block 6 to flow through the through holes 5 to between the shaft body 1 and the parts connected thereto.

[0018] Furthermore, the top of the cover body 3 is annularly and equidistantly provided with thread grooves 8, and the top of the cover body 3 is provided with an annular plate 9, the inner wall of the annular plate 9 is connected with a rack 10, and the surface of the rack 10 is connected with a gear 11, and the surface of the gear 11 is connected with an extrusion rod 12 in contact with the top of the extrusion plate 7, which is convenient for rotating the annular plate 9 so that the rack 10 connected to the inner wall can move on the surface of the gear 11, so that the gear 11 drives the extrusion rod 12 to rotate inside the thread groove 8.

[0019] Furthermore, the extrusion rod 12 is threadedly connected to the inside of the thread groove 8, which makes it easy for the extrusion rod 12 to rotate and move when it rotates inside the thread groove 8, so as to move the extrusion rod 12 to the surface of the extrusion plate 7 and continue to extrude downward.

[0020] Furthermore, a slide groove 13 is provided at the inner bottom end of the annular plate 9, and a slider 14 is slidably connected inside the slide groove 13 and is rotatably connected to the bottom end of the extrusion rod 12, so that the annular plate 9 can move on the surface of the slider 14 through the slide groove 13, so that the rack 10 on the inner wall can move on the surface of the gear 11.

[0021] Furthermore, the circular plate 2 and the cover body 3 are connected by threads, which facilitates the installation or removal of the circular plate 2 and the cover body 3, so as to facilitate the replacement of the oil storage block 6 therein.

[0022] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A high-precision rotating shaft using a cold heading process, comprising a shaft body (1), characterized in that: A circular plate (2) is sleeved on the surface of the shaft body (1), and a cover body (3) is provided on the top end of the circular plate (2); An annular groove (4) is provided at the top of the circular plate (2), a plurality of through holes (5) are provided on one side of the inner wall of the annular groove (4), an oil storage block (6) is placed inside the annular groove (4), and an extrusion plate (7) is placed at the top of the oil storage block (6).

2. According to claim 1, a high-precision rotating shaft using cold heading technology is characterized in that: The oil storage block (6) is a sponge block, and the oil storage block (6) is annular.

3. The high-precision rotating shaft using cold heading process according to claim 1, characterized in that: The through holes (5) are distributed annularly and equidistantly on the inner wall of the annular groove (4), and the through holes (5) are distributed in at least two groups.

4. The high-precision rotating shaft using cold heading process according to claim 1, characterized in that: The top end of the cover body (3) is provided with thread grooves (8) at equal intervals in an annular shape, and the top end of the cover body (3) is provided with an annular plate (9), the inner wall of the annular plate (9) is connected to a rack (10), the surface of the rack (10) is connected to a gear (11), and the surface of the gear (11) is connected to an extrusion rod (12) in contact with the top end of the extrusion plate (7).

5. The high-precision rotating shaft using cold heading technology according to claim 1, characterized in that: The extrusion rod (12) is threadedly connected to the interior of the thread groove (8).

6. The high-precision rotating shaft using cold heading technology according to claim 1, characterized in that: A slide groove (13) is provided at the inner bottom end of the annular plate (9), and a slider (14) is slidably connected inside the slide groove (13) and is rotatably connected to the bottom end of the extrusion rod (12).

7. The high-precision rotating shaft using cold heading technology according to claim 1, characterized in that: The circular plate (2) and the cover body (3) are connected by threads.

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