Manufacturing method of a self-locking rotating shaft for a table lamp

Abstract

The present invention discloses a manufacturing method of a self-locking rotating shaft for a table lamp, and the specific steps include: 1) manufacturing of a shaft sleeve; 2) manufacturing of a shaft center; 3) manufacturing of a locking block; 4) assembly of parts. By the above method, the manufacturing method of the self-locking rotating shaft for a table lamp provided by the present invention can achieve self-locking without the aid of tools. After processing each component one by one and then assembling them, the self-locking rotating shaft can be obtained.

Description

Technical Field

[0001] The present invention relates to the technical field of table lamps, and in particular to a manufacturing method of a self-locking rotating shaft for a table lamp. Background Art

[0002] In the manufacturing of table lamps, the rotating shaft is mainly used to connect two connecting blocks, enabling relative rotation between the two connecting blocks. To prevent the rotating shaft from detaching from the two connecting blocks during rotation, tools and other parts are required during installation to lock the rotating shaft to the two connecting blocks, which is very troublesome during installation and disassembly.

[0003] Existing rotating shafts for table lamps are all solid structures and are mainly manufactured by one-time turning on a CNC lathe, which is not applicable to rotating shafts with complex structures. Summary of the Invention

[0004] The main technical problem to be solved by the present invention is to provide a manufacturing method of a self-locking rotating shaft for a table lamp, and the rotating shaft manufactured by this method can be self-locked without the aid of tools.

[0005] To solve the above technical problem, a technical solution adopted by the present invention is: a manufacturing method of a self-locking rotating shaft for a table lamp, and the specific steps include:

[0006] 1) Manufacturing of the shaft sleeve: The first shaft part is processed by a CNC machine tool. First, through holes penetrating two parallel planes of the first shaft part and mounting grooves perpendicular to the through holes on one side of the first shaft part are respectively drilled. At the same time, the outer diameter of the first shaft part is turned, so that a baffle is processed on the side of the first shaft part opposite to the mounting groove, and a groove is processed at the opening of the through hole on the baffle side, thereby obtaining the shaft sleeve;

[0007] 2) Manufacturing of the shaft center: The second shaft part is processed by a CNC machine tool. First, the outer diameter of the second shaft part is turned, so that a pressing plate is processed on one side, and a positioning ring is processed on the side wall of the second shaft part. Then, a first chamfer is cut on the side of the second shaft part opposite to the pressing plate, thereby obtaining the shaft center;

[0008] 3) Manufacturing of the locking block: The third shaft part is processed by a CNC machine tool. First, the outer diameter of the third shaft part is turned, so that the diameter of the upper section is smaller than that of the lower section. Then, the bottom of the lower section is chamfered to process a second chamfer, and a positioning groove is processed at the bottom of the third shaft part, thereby obtaining the locking block;

[0009] 4) Assembly of parts: Assemble the shaft sleeve, the shaft center, and the locking block in the steps 1), 2), and 3), thereby obtaining the self-locking rotating shaft.

[0010] In a preferred embodiment of the present invention, in step 4), one end of the first return spring is first welded to the bottom of the groove. After inserting the shaft center into the through hole, the other end of the first return spring is welded to the left side of the pressing plate. Then, the second return spring is sleeved on the upper section of the locking block. The pressing plate is pulled backward to stretch the first return spring. At this time, the locking block is installed into the installation groove through the through hole, and the shaft center is released, so that the first chamfer and the second chamfer are in contact with each other, thus completing the assembly.

[0011] In a preferred embodiment of the present invention, when the pressing plate falls into the groove, the positioning groove and the positioning ring are connected in a matching manner.

[0012] In a preferred embodiment of the present invention, when processing the installation groove in step 1), a limiting ring is welded at the upper opening of the installation groove.

[0013] In a preferred embodiment of the present invention, the second return spring is located in the space enclosed by the installation groove, the limiting ring and the locking block.

[0014] In a preferred embodiment of the present invention, the first chamfer and the second chamfer cooperate with each other.

[0015] The beneficial effect of the present invention is as follows: A manufacturing method of a self-locking rotating shaft for a table lamp according to the present invention can perform self-locking without the aid of tools. By processing and assembling each component one by one, the self-locking rotating shaft is obtained. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a process flow chart of a manufacturing method of a self-locking rotating shaft for a table lamp.

[0017] Figure 2 is a cross-sectional view of a self-locking rotating shaft manufactured by a manufacturing method of a self-locking rotating shaft for a table lamp.

[0018] The markings of each component in the drawings are as follows: 1. Bush; 2. Locking block; 3. Installation groove; 4. Baffle; 5. First return spring; 6. Second return spring; 7. Limiting ring; 8. Shaft center; 9. Through hole; 10. Pressing plate; 11. Groove; 12. First chamfer; 13. Second chamfer; 14. Positioning groove; 15. Positioning ring. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0019] The following describes in detail the preferred embodiments of the present invention with reference to the accompanying drawings, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby making a clearer and more definite definition of the protection scope of the present invention.

[0020] Please refer to Figure 1 andFigure 2 , a manufacturing method of a self-locking rotating shaft for a table lamp. The self-locking rotating shaft manufactured by this method can firmly connect two connecting blocks without the aid of tools, making the installation and maintenance more convenient and fast.

[0021] The specific steps include:

[0022] 1) Manufacturing of the bushing 1: The first shaft part is machined by a numerical control machine tool. First, through holes 9 penetrating two parallel surfaces of the first shaft part and mounting grooves 3 perpendicular to the through holes 9 on one side of the first shaft part are drilled respectively. At the same time, the outer circle of the first shaft part is turned, so that a baffle 4 is machined on the side of the first shaft part opposite to the mounting groove 3, and a groove 11 is formed at the opening of the through hole 9 on the side of the baffle 4, thus obtaining the bushing 1.

[0023] In the step 1), when machining the mounting groove 3, a limiting ring 7 is welded at the upper opening of the mounting groove 3. The limiting ring 7 plays a role in limiting the second return spring 6, preventing it from being pushed out of the mounting groove 3 by the lower section, and at the same time cooperating with the lower section to compress the second return spring 6, so that the locking block 2 returns during disassembly.

[0024] 2) Manufacturing of the shaft center 8: The second shaft part is machined by a numerical control machine tool. First, the outer circle of the second shaft part is turned, so that a pressing plate 10 is machined on one side of it. At the same time, a positioning ring 15 is machined on the side wall of the second shaft part. Then, a first chamfer 12 is cut on the side of the second shaft part opposite to the pressing plate 10, thus obtaining the shaft center 8.

[0025] The pressing plate 10 is used for the operator's finger to push during installation, making it more convenient for the operator to push the shaft center 8 to move.

[0026] 3) Manufacturing of the locking block 2: The third shaft part is machined by a numerical control machine tool. First, the outer circle of the third shaft part is turned, so that the diameter of the upper section is smaller than that of the lower section. Then, the bottom of the lower section is chamfered to machine a second chamfer 13, and a positioning groove 14 is machined at the bottom of the third shaft part, thus obtaining the locking block 2. Through the protrusion of the locking block 2 and the cooperation with the baffle 4, the two mutually cooperating connecting blocks on the table lamp are clamped, playing a locking role, so that the two connecting blocks are firmly connected.

[0027] 4) Assembly of parts: Assemble the bushing 1, the shaft center 8 and the locking block 2 in the step 1), the step 2) and the step 3), thus obtaining the self-locking rotating shaft.

[0028] In the step 4), firstly weld one end of the first return spring 5 to the bottom of the groove 11, insert the axis 8 into the through hole 9, and then weld the other end of the first return spring 5 to the left side of the press plate 10, then sleeve the second return spring 6 on the upper section of the locking block 2, pull the press plate 10 backwards to lengthen the first return spring 5, and then install the locking block 2 into the mounting groove 3 through the through hole 9, release the axis 8, so that the first chamfer 12 and the second chamfer 13 are in contact, thereby completing the assembly.

[0029] The first return spring 5 is used for returning the shaft center 8 during disassembly.

[0030] The second return spring 6 is used for returning the locking block 2 during disassembly, thereby facilitating the removal of the shaft sleeve 1 . The second return spring 6 is located in the space surrounded by the mounting groove 3 , the limiting ring 7 and the locking block 2 .

[0031] When the pressing plate 10 falls into the groove 11, the positioning groove 14 is connected with the positioning ring 15, and the positioning ring 15 is used to lock the axis 8 during installation to prevent the axis 8 from moving in the opposite direction due to external vibration, thereby preventing the axis 8 from escaping from the through hole 9.

[0032] The first chamfer 12 and the second chamfer 13 cooperate with each other. Through the mutual movement of the first chamfer 12 and the second chamfer 13, the horizontal movement of the axis 8 is converted into the vertical movement of the locking block 2, thereby completing the lifting and lowering of the locking block 2.

[0033] When selecting the first return spring 5 and the second return spring 6, their telescopic force must be sufficient for the operator to compress them by exerting force, so that they are not only easy to load and unload, but also firmly locked.

[0034] Compared with the prior art, the present invention provides a method for manufacturing a self-locking rotating shaft for a desk lamp. The rotating shaft manufactured by the method can be self-locking without the aid of tools, and the self-locking rotating shaft is obtained by assembling each component after processing it one by one.

[0035] In the description of the present invention, it should be noted that the directions or positional relationships indicated by the terms "upper", "lower", "left", "right", "inside", "outside", etc. are based on the directions or positional relationships shown in the accompanying drawings, or are the directions or positional relationships in which the product of the invention is usually placed when in use. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention.

[0036] The above are only embodiments of the present invention, and do not thereby limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the content of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, shall similarly be included within the patent protection scope of the present invention.

Claims

1. Manufacturing method of a self-locking rotating shaft for a table lamp, Characterized in that, The specific steps include: 1) Manufacturing of the bushing: The first shaft part is machined by a numerically controlled machine tool. First, through holes penetrating two parallel planes of the first shaft part and mounting grooves perpendicular to the through holes on one side of the first shaft part are drilled respectively. At the same time, the outer diameter of the first shaft part is turned, so that a baffle is machined on the side of the first shaft part opposite to the mounting groove, and a groove is machined at the opening of the through hole on the baffle side, thereby obtaining the bushing. When machining the mounting groove, a limiting ring is welded at the upper opening of the mounting groove; 2) Manufacturing of the shaft center: The second shaft part is machined by a numerically controlled machine tool. First, the outer diameter of the second shaft part is turned, so that a pressing plate is machined on one side of it. At the same time, a positioning ring is machined on the side wall of the second shaft part. Then, a first chamfer is cut on the side of the second shaft part opposite to the pressing plate, thereby obtaining the shaft center; 3) Manufacturing of the locking block: The third shaft part is machined by a numerically controlled machine tool. First, the outer diameter of the third shaft part is turned, so that the diameter of the upper section is smaller than that of the lower section. Then, a chamfer is cut at the bottom of the lower section to machine a second chamfer, and a positioning groove is machined at the bottom of the third shaft part, thereby obtaining the locking block; 4) Assembly of parts: The bushing, the shaft center and the locking block in the steps 1), 2) and 3) are assembled to obtain the self-locking rotating shaft. First, one end of the first return spring is welded to the bottom of the groove. After inserting the shaft center into the through hole, the other end of the first return spring is welded to the left side of the pressing plate. Then, the second return spring is sleeved on the upper section of the locking block, and the pressing plate is pulled backward to stretch the first return spring. At this time, the locking block is installed into the mounting groove through the through hole, and the shaft center is released, so that the first chamfer and the second chamfer are in contact with each other, thereby completing the assembly.

2. The manufacturing method of a self-locking rotating shaft for a table lamp according to claim 1, Characterized in that, When the pressing plate falls into the groove, the positioning groove is in fit connection with the positioning ring.

3. The manufacturing method of a self-locking rotating shaft for a table lamp according to claim 1, Characterized in that, The second return spring is located in the space surrounded by the mounting groove, the limiting ring and the locking block.

4. The manufacturing method of a self-locking rotating shaft for a table lamp according to claim 1, Characterized in that, The first chamfer and the second chamfer cooperate with each other.

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