Metal handle acupuncture needle and batch production device and method thereof

Abstract

The invention discloses a metal handle acupuncture needle and a batch production device and method thereof, and belongs to the technical field of acupuncture appliance manufacturing. The metal handle acupuncture needle batch production device comprises a visual camera module, a laser galvanometer welding machine and a clamp for clamping and positioning batch metal handles. After the visual camera module identifies and records position information of the tail end of each metal handle in the clamp, the position information is sent to the laser galvanometer welding machine, during welding, the laser output end of the laser galvanometer welding machine faces the tail ends of the metal handles, and during welding, a galvanometer unit in the laser galvanometer welding machine conducts welding according to the position information. The laser beam line is changed by adjusting different angles of the corner lens, and the laser output end of the galvanometer unit sequentially emits laser beams with different angle lines to be aligned with the tail end of the metal handle with corresponding position information for welding. The technical problem that in the prior art, when a metal handle acupuncture needle handle and a needle body are fixed through laser welding, the welding efficiency is low is solved.

Description

Technical Field

[0001] The invention relates to the field of acupuncture and moxibustion apparatus manufacturing, and more specifically to a metal-handled acupuncture and moxibustion needle and a mass production device and method thereof. Background Art

[0002] With the continuous development and progress of medical technology, acupuncture is increasingly used in medical treatment and health preservation, and the demand for acupuncture needles is increasing accordingly.

[0003] There are many ways to connect the handle and needle body of metal-handled acupuncture needles on the market. Among them, the traditional laser welding method uses a needle wheel or a clamp to position the needle. Since the clamp or the needle wheel needs to be moved, there is a servo system positioning time, a protective gas adding time, and a cooling time. The time actually used for welding is very short, only tens of milliseconds, and the welding efficiency is low, with a maximum of about 120 welds per minute.

[0004] For example, the Chinese patent with announcement number CN 208214793 U discloses an acupuncture needle laser welding machine, including a turntable mechanism, a feeding and threading mechanism is provided on the outer periphery of the turntable mechanism, a laser transfer mechanism is provided on the turntable, the feeding and threading mechanism is used to feed the needle body and thread it into the spring handle, the laser transfer mechanism with a laser welder performs laser welding on the needle body and the spring handle after the threading, and a fixed-length cutting mechanism is also provided on the feeding and threading mechanism, the fixed-length cutting mechanism is used to cut the needle body to a fixed length, and the production is automated, but its maximum is only 0.22S / PCS. Summary of the invention

[0005] 1. Technical problem to be solved by the invention

[0006] In view of the above-mentioned problems existing in the production of traditional Chinese medicine metal-handled acupuncture needles in the prior art, the present invention provides a metal-handled acupuncture needle and a mass production device and method thereof, which at least achieves the technical purpose of improving welding efficiency through the coordinated action of a clamp, a visual camera module and a laser galvanometer welding machine.

[0007] 2. Technical solution

[0008] In order to achieve the above object, the technical solution provided by the present invention is:

[0009] A device for mass production of acupuncture needles with metal handles comprises a visual camera module, a laser galvanometer welding machine and a fixture for clamping and positioning a batch of metal handles; after the visual camera module identifies and records the position information of the end of each metal handle in the fixture, the position information is sent to the laser galvanometer welding machine; during welding, the laser output end of the laser galvanometer welding machine faces the end of the metal handle; during welding, the galvanometer unit in the laser galvanometer welding machine changes the laser beam line by adjusting the different angles of the corner lens according to the position information; the laser output end of the galvanometer unit sequentially emits laser beams of different angle lines to align with the metal handle end with the corresponding position information for welding.

[0010] A further production device also includes a protective gas chamber, whose opening faces the ends of the batch of metal handles; during welding, the laser output end of the laser galvanometer welding machine is close to the side of the protective gas chamber to prevent the metal handle from oxidizing and discoloring during welding.

[0011] In further production facilities, the protective gas chamber is filled with inert gas to avoid oxidation reactions and safety risks.

[0012] Further production equipment also includes a light source fixedly connected to the side of the protective gas chamber, or a ring light source coaxial with the laser output head, which facilitates the visual camera module to instantly identify and record the position information of the end of each metal handle in the fixture.

[0013] A production method of the above production device comprises the following steps:

[0014] The metal handles after needle threading are clamped and positioned in the fixtures in batches, and the fixtures are stacked and fixed side by side, with the ends of the metal handles facing the laser output end of the laser galvanometer welding machine;

[0015] The visual camera module identifies and records the position information of each metal handle end in the fixture and sends it to the laser galvanometer welding machine;

[0016] The galvanometer unit of the laser galvanometer welding machine adjusts the laser beam line according to the position information, and the laser beam welds the end of each metal handle.

[0017] A further production method is to record the position information of the end of the metal handle in coordinate form, the first row is L row, and the coordinates are L1, L2, L3...Ln respectively; the second row is M row, and the coordinates are M1, M2, M3...Mn respectively; the third row is N row, and the coordinates are N1, N2, N3...Nn respectively, arranged downward in sequence; the horizontal distance between two adjacent coordinates is ≥d, d is the outer diameter of the metal handle; the vertical distance between two rows is h, h is the thickness of the fixture, which is convenient for the visual camera module to perform modular calculation, statistics, storage and transmission of data, and the laser galvanometer welding machine performs timed long welding according to the received data module, which can effectively improve the batch consistency and quality stability of the acupuncture needle products.

[0018] A metal handle acupuncture needle made by the above production method comprises a needle body and a metal handle. After the needle body end of the needle body penetrates into the metal handle, it is fixed at the end of the metal handle by laser melting welding.

[0019] 3. Beneficial effects

[0020] Compared with the prior art, the technical solution provided by the present invention has the following beneficial effects:

[0021] (1) The metal handle acupuncture needles and the mass production device and method thereof of the present invention are as follows: the clamp clamps the batch of metal handles and positions them; the visual camera module captures the image, identifies and records the position information of the end of each metal handle in the clamp; and then makes full use of the characteristics of the laser galvanometer welding machine, such as small lens mass, fast movement speed and very short positioning time (measured in milliseconds). The laser is deflected to different angles by tiny lens movement and aimed at the welding target with position information for welding. The three cooperate with each other to improve the welding efficiency by multiple levels;

[0022] (2) The metal-handled acupuncture needles and the mass production device and method thereof of the present invention use a visual camera module to capture the image information of the welding target and use the AI ​​machine vision function in the computer to identify the position, thereby eliminating the welding quality instability caused by the welding position deviation caused by the traditional needle on the fixture or wheel, machining error or clamping deviation, thereby improving the welding quality and product consistency and stability;

[0023] (3) The metal-handled acupuncture needles and their mass production apparatus and method of the present invention use a laser galvanometer welding machine. The welding target does not move, so there is no need to frequently add protective gas. Only one time of adding protective gas is required, which greatly saves the time of adding gas. The welded needles can be cooled naturally under the protective gas. Unlike traditional laser welding, they do not need to stay under the protective gas for a period of time before being removed. In this way, they are fully cooled under the protective gas chamber, which improves the appearance of the weld. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a structural schematic diagram of a device for mass production of metal-handled acupuncture needles according to a specific embodiment;

[0025] Figure 2 for Figure 1 A partial enlarged schematic diagram of

[0026] Figure 3 for Figure 1 Schematic diagram of the side view of the middle fixture after stacking;

[0027] Figure 4 is a schematic diagram of a fixture structure of a specific embodiment;

[0028] Figure 5 It is a schematic diagram of the structure of the clamp after closing according to a specific embodiment.

[0029] In the figure: 1-needle body; 2-metal handle; 3-clamp; 4-protective gas chamber; 5-laser galvanometer welding machine; 6-visual camera module; 7-light source; 11-needle body end; 31-clamping plate; 32-arc groove; 33-clamping hole; 51-laser inlet; 52-galvanometer unit; 53-laser beam. DETAILED DESCRIPTION

[0030] In order to further understand the content of the present invention, the invention is described in detail with reference to the accompanying drawings.

[0031] Example 1

[0032] The device for mass production of acupuncture needles with metal handles of this embodiment includes a visual camera module 6, a laser galvanometer welding machine 5, and a clamp 3 for clamping and positioning the batch of metal handles 2.

[0033] like Figure 4 , 5 As shown, the clamp 3 includes two clamping plates 31 that clamp the batch of metal handles 2 when the upper and lower clamping plates are closed. The clamping surface of the clamping plate 31 is provided with an arc groove 32 for accommodating the metal handle 2. When the upper and lower clamping plates 31 are closed, a clamping hole 33 for clamping the metal handle 2 is formed.

[0034] The visual camera module 6 can adopt an existing AI visual system, such as an AI camera.

[0035] The existing laser galvanometer welding machine 5 is adaptively improved, including a galvanometer unit 52. The existing galvanometer unit 52 includes a built-in corner lens. The rotation of each lens is controlled by an independent servo motor. The laser line is changed by the different angles of the two lenses. The laser is deflected to different angles and aimed at the welding target for welding by using tiny lens movements. The lens has a small mass, a fast movement speed, and a very short positioning time, which is usually measured in milliseconds. The galvanometer unit 52 is externally connected to the camera of an AI camera.

[0036] After the visual camera module 6 identifies and records the position information of the end of each metal handle 2 in the fixture 3 , the position information is sent to the laser galvanometer welding machine 5 .

[0037] The welding method of the metal handle acupuncture needle batch production device of this embodiment comprises the following steps:

[0038] 1. Clamp and position the metal handles 2 after needle threading in batches in the fixtures 3. The fixtures 3 are stacked and fixed side by side, and the ends of the metal handles 2 face the laser output end of the laser galvanometer welding machine 5;

[0039] 2. The visual camera module 6 identifies and records the position information of the end of each metal handle 2 in the fixture 3 and sends it to the laser galvanometer welding machine 5;

[0040] 3. The galvanometer unit 52 of the laser galvanometer welding machine 5 adjusts the line of the laser beam 53 according to the position information. The laser is injected from the laser inlet 51 connected to the bottom of the galvanometer unit 52. The galvanometer unit 52 adjusts the different angles of the corner lens to change the line of the laser beam 53. The laser output end of the galvanometer unit 52 sequentially emits laser beams 53 of different angle lines to align with the ends of the metal handles 2 with the corresponding position information for welding one by one. After the needle body end 11 of the needle body 1 is melted by laser at the end of the metal handle 2, the two are welded and fixed; cooling is carried out while welding to produce a batch of metal handle acupuncture needle products.

[0041] In the present embodiment, the metal handle acupuncture needles and their mass production device and method, the fixture 3 clamps and positions the batch of metal handles 2, and the visual camera module 6 identifies and records the position information of the end of each metal handle 2 in the fixture 3, and then makes full use of the characteristics of the laser galvanometer welding machine 5, which has a small lens mass, fast movement speed and very short positioning time, measured in milliseconds, and uses tiny lens movement to deflect the laser to different angles and aim at the welding target with position information for welding. The three cooperate with each other, and the lens positioning and welding time are both 50 milliseconds. Up to 600 needles are welded per minute, which improves the welding efficiency by multiple levels. In addition, the use of the visual camera module 6 to identify the position eliminates the instability of welding quality caused by the welding position deviation caused by the traditional needle on the fixture or wheel, and the machining error, thereby improving the welding quality and product consistency and stability.

[0042] Example 2

[0043] The basic structure and steps of the metal handle acupuncture needle batch production device of this embodiment are the same as those of embodiment 1, and the differences or improvements are as follows: Figure 1 , 2 As shown, it also includes a protective gas chamber 4, whose opening faces the end of the batch of metal handles 2; among the walls of the protective gas chamber 4, at least the wall close to the laser galvanometer welding machine 5 is made of transparent material. During welding, the laser output end of the laser galvanometer welding machine 5 is close to the side of the protective gas chamber 4 to prevent the metal handle 2 from oxidizing and discoloring during welding. The protective gas chamber 4 is filled with inert gas to avoid oxidation reactions and safety risks.

[0044] It also includes a light source 7 fixedly connected to the side of the protective gas chamber 4, which facilitates the visual camera module 6 to instantly identify and record the position information of the end of each metal handle 2 in the clamp 3.

[0045] In the welding method of the metal handle acupuncture needle batch production device of this embodiment, in step 2: Figure 3As shown, the position information of the end of each metal handle 2 in the fixture 3 is recorded in coordinates, the first row is L row, and the coordinates are L1, L2, L3...Ln respectively; the second row is M row, and the coordinates are M1, M2, M3...Mn respectively; the third row is N row, and the coordinates are N1, N2, N3...Nn respectively, arranged downward in sequence; the horizontal distance between two adjacent coordinates is d, d is the outer diameter of the metal handle 2; the vertical distance between two rows is h, h is the thickness of the fixture 3, which is convenient for the visual camera module 6 to perform modular calculation, statistics, storage and transmission of data, and the laser galvanometer welding machine 5 performs timed long welding according to the received data module, which can effectively improve the batch consistency and quality stability of the obtained acupuncture needle products.

[0046] In the metal-handled acupuncture needles and their mass production device and method of this embodiment, the welding target is positioned by the clamp 3 and does not need to be moved, so there is no need to frequently add protective gas. Protective gas only needs to be added once in the protective gas chamber 4, which greatly saves the time for adding gas. The welded needles can be cooled naturally under the protective gas, and do not need to stay under the protective gas for a period of time before being removed as in traditional laser welding. In this way, they are fully cooled in the protective gas chamber 4, which improves the appearance of the weld.

[0047] The above schematically describes the present invention and its implementation methods, which are not restrictive. The drawings show only one implementation method of the present invention, and the actual structure and manufacturing steps are not limited thereto. Therefore, if a person skilled in the art is inspired by it and, without departing from the purpose of the invention, designs a structure and an implementation method similar to the technical solution without creativity, they shall all fall within the protection scope of the present invention.

Claims

1. A device for mass production of metal-handled acupuncture needles, characterized in that: The invention comprises a visual camera module (6), a laser galvanometer welding machine (5), and a fixture (3) for clamping and positioning a batch of metal handles (2); the visual camera module (6) identifies and records the position information of the end of each metal handle (2) in the fixture (3), and then sends the position information to the laser galvanometer welding machine (5); during welding, the laser output end of the laser galvanometer welding machine (5) faces the end of the metal handle (2).

2. The production device according to claim 1, characterized in that: It also comprises a protective gas chamber (4) whose opening faces the ends of the batch metal handles (2); during welding, the laser output end of the laser galvanometer welding machine (5) is close to the side of the protective gas chamber (4).

3. The production device according to claim 2, characterized in that: The protective gas chamber (4) is filled with inert gas.

4. The production device according to claim 2, characterized in that: It also includes a light source (7) fixedly connected to the side of the protective gas chamber (4).

5. A method for producing a production device according to any one of claims 1 to 4, characterized in that: The steps are: The metal handles (2) after being threaded are clamped and positioned in batches in the clamps (3), and the clamps (3) are stacked and fixed side by side, with the ends of the metal handles (2) facing the opening end of the protective gas chamber (4); The visual camera module (6) identifies and records the position information of the end of each metal handle (2) in the fixture (3), and sends it to the laser galvanometer welding machine (5); The galvanometer unit (52) of the laser galvanometer welding machine (5) adjusts the line of the laser beam (53) according to the position information, and the laser beam (53) welds the end of each metal handle (2).

6. The production method according to claim 5, characterized in that: The position information of the end of the metal handle (2) is recorded in coordinate form, the first row is the L row, and the coordinates are L1, L2, L3...Ln respectively; the second row is the M row, and the coordinates are M1, M2, M3...Mn respectively; the third row is the N row, and the coordinates are N1, N2, N3...Nn respectively, arranged downward in sequence; the horizontal distance between two adjacent coordinates is d, d is the outer diameter of the metal handle (2); the vertical distance between two rows is h, and h is the thickness of the fixture (3).

7. A metal-handled acupuncture needle produced according to the production method of claim 5 or 6, characterized in that: The needle body comprises a needle body (1) and a metal handle (2). After the needle body end (11) of the needle body (1) penetrates into the metal handle (2), the end of the metal handle (2) is fixed by laser melting welding.

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