Material conveying mechanism for laser welding

Abstract

The utility model discloses a material conveying mechanism for laser welding. The material conveying mechanism comprises an adjusting clamp set, a driving motor and a conveying assembly. The adjusting clamp set comprises a fixed seat, a guide seat, a first clamping flap and a second clamping flap, and the guide seat is in sliding connection with the clamping flaps through guide pins and used for driving the clamping flaps to be opened and closed and adjusting the clamping distance; the driving motor comprises a driving motor body and a lead screw, the lead screw is sleeved with the guide base through a screw hole, and automatic adjustment of the clamping structure is achieved; the conveying assembly comprises peristaltic petals installed at the ends of the clamping petals and eccentric wheels, the eccentric wheels are driven by the output shaft sleeve to rotate, and materials are clamped and conveyed in a peristaltic mode. The mechanism can realize self-adaptive clamping and stable propelling of welding materials with different specifications, has the advantages of compact structure, stable transmission, high universality and the like, and is suitable for material precision conveying requirements in automatic laser welding equipment.

Description

Technical Field

[0001] This utility model relates to the field of laser welding technology, specifically to a material transfer mechanism for laser welding. Background Technology

[0002] With the development of industrial automation and precision manufacturing, laser welding technology has been widely used in various fields such as electronic devices, medical equipment, and metal processing due to its advantages such as small heat-affected zone, high welding precision, and high efficiency. During laser welding, stable material delivery and precise positioning are among the key factors affecting welding quality and production efficiency.

[0003] Existing laser welding feeding devices mainly adopt tracked, roller, or robotic arm structures. While these methods have a certain degree of adaptability in general transportation, they generally suffer from the following technical defects when handling workpieces with irregular shapes or varying sizes:

[0004] Fixed clamping structure and poor versatility: Traditional clamping structures are mostly fixed-spacing types, which are only suitable for workpieces of specific specifications. They cannot be adaptively adjusted according to materials of different sizes, resulting in frequent debugging or replacement of equipment parts when changing materials.

[0005] Rigid transmission methods have high rigidity and poor flexibility: Rigid transmission devices are prone to causing workpiece shaking, slippage, or even damage during material contact or conveying, affecting the accuracy of welding position and overall welding quality.

[0006] Therefore, there is an urgent need for a material transfer mechanism for laser welding that has clamping and adjustment functions, strong conveying flexibility, and a simple and compact structure, in order to solve the shortcomings of existing technologies in terms of material versatility, clamping stability, and flexible propulsion, thereby meeting the dual requirements of high precision and high efficiency in modern welding processes. Utility Model Content

[0007] This invention relates to the field of laser welding technology, and in particular to a material transfer mechanism for laser welding, which aims to solve the technical defects of existing transfer devices in terms of material adaptability, clamping stability and continuous conveying efficiency.

[0008] To achieve the above objectives, the present invention provides a material transfer mechanism for laser welding, comprising three parts: an adjusting clamp group, a drive motor, and a conveying assembly. Wherein:

[0009] The adjusting clamp assembly includes a fixed base, a guide base, a first clamping flap, and a second clamping flap. One end of each clamping flap is rotatably connected to the fixed base, and the guide base is slidably connected to the clamping flap via a guide pin.

[0010] The clamping bar is equipped with a fixed pin and a conveyor drive motor. A sliding block is slidably connected to the fixed pin to support the conveying assembly.

[0011] The drive motor includes a drive motor fixed on a fixed base, whose output end is connected to a lead screw, and the guide seat is threaded onto the lead screw to achieve sliding;

[0012] Two sets of conveying components are respectively installed at the ends of the first and second clamping plates and are slidably disposed on the surface of the slide block;

[0013] Each conveying assembly consists of a peristaltic flap and an eccentric wheel. The eccentric wheel is fixed on the output shaft sleeve and drives the peristaltic flap to generate propulsion. The peristaltic flap has a bearing ring inside and a peristaltic rack on one side to enhance the clamping and conveying effect.

[0014] Furthermore, the drive motor is preferably a stepper motor or a servo motor to improve the positioning accuracy of the guide seat during the sliding process; at the same time, it works with the lead screw to achieve high-precision adjustment and control between the fixed seat and the guide seat.

[0015] By adjusting the spacing between the clamping segments using the guide seat, this structure becomes suitable for welding materials of various specifications, enhancing the versatility and flexibility of the equipment.

[0016] To enhance the buffering and stable conveying capacity of materials, the peristaltic flap is made of elastic material, which can generate elastic deformation under the drive of the eccentric wheel to smoothly clamp and convey materials.

[0017] To ensure continuous and non-slip material feeding, each conveying assembly contains at least two eccentric wheels and peristaltic flaps, forming a peristaltic conveyor chain structure.

[0018] The output shaft sleeve is rotated and fitted onto the fixed pin, and slides inside the slide block, ensuring the coaxiality and mechanical stability of the transmission structure.

[0019] To further enhance the clamping friction, the peristaltic rack is arranged along the material conveying direction, and the surfaces of the fixed seat and guide seat are provided with through holes to allow the welding material to pass smoothly, supporting automated continuous welding processes.

[0020] The material transport mechanism for laser welding of the present invention achieves the following beneficial effects by setting an adjusting clamp group with opening and closing adjustment capability and a conveying component with elastic propulsion capability:

[0021] Adaptive clamping: The clamping jaws open and close flexibly by sliding the guide seat, which can adapt to welding materials of different sizes;

[0022] Smooth and flexible conveying: The eccentric wheel drives the elastic peristaltic flaps to simulate "squeezing" propulsion, improving the smoothness of conveying and reducing material damage;

[0023] Compact structure and high transmission efficiency: The structural combination of the fixed pin and the output shaft sleeve improves structural stability and transmission accuracy;

[0024] In summary, this invention is superior to existing technologies in terms of structural innovation, performance improvement, and industrial applicability, and has good prospects for promotion and market value. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the overall structure of one embodiment of the present utility model;

[0026] Figure 2 This is a schematic diagram of the adjusting clamp assembly structure according to an embodiment of the present invention;

[0027] Figure 3 This is a schematic diagram of the conveying component structure according to an embodiment of the present invention;

[0028] Figure 4 This is a schematic diagram of the peristaltic valve and eccentric wheel structure of one embodiment of the present invention.

[0029] Figure label:

[0030] 100. Adjusting clamp assembly; 110. Fixed base; 120. Guide seat; 130. First clamping segment; 140. Second clamping segment; 121. Guide pin; 131. Fixed pin rod; 150. Slide; 160. Conveyor drive motor; 161. Output shaft sleeve;

[0031] 200. Drive motor; 210. Lead screw;

[0032] 300. Conveying assembly; 310. Peristaltic flap; 320. Eccentric wheel; 311. Bearing ring; 312. Peristaltic rack. Detailed Implementation

[0033] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings. It should be noted that, unless otherwise specified, the embodiments and features of the present utility model can be combined with each other.

[0034] It should be understood that these descriptions are merely exemplary and are not intended to limit the scope of this invention.

[0035] like Figures 1 to 4 As shown, a material transfer mechanism for laser welding includes an adjusting clamp group 100, a drive motor 200, and a conveying assembly 300.

[0036] The adjusting clamp assembly 100 includes a fixed base 110, a guide base 120, a first clamping flap 130, and a second clamping flap 140. One end of the first clamping flap 130 and the second clamping flap 140 are respectively hinged to the surface of the fixed base 110 to form an openable clamping structure.

[0037] The guide seat 120 has a strip-shaped structure, and its length extends along the opening and closing direction of the first clamping flap 130 and the second clamping flap 140. Guide pins 121 are provided at both ends of the guide seat 120. The guide pins 121 slide through the preset sliding grooves on the first clamping flap 130 and the second clamping flap 140. When the guide seat 120 slides under the drive of the lead screw 210, it can drive the first clamping flap 130 and the second clamping flap 140 to open and close, thereby adjusting the clamping distance to accommodate materials of different specifications to be welded.

[0038] At one end of the first clamping segment 130 and the second clamping segment 140, a fixed pin 131 and a conveying drive motor 160 are respectively fixedly provided. The fixed pin 131 is used to provide a support structure, and a slide block 150 is slidably sleeved on its surface. A conveying assembly 300 is installed on the slide block 150 to realize the clamping and pushing functions of materials.

[0039] The drive motor 200 is used to automatically adjust the opening and closing of the clamping petals. It includes a drive motor 200 fixed to the surface of the fixed base 110, with its output end connected to the lead screw 210. A guide seat 120 has a screw hole matching the lead screw 210 and is fitted onto the surface of the lead screw 210. The motor drives the lead screw to rotate, thereby pushing the guide seat 120 to reciprocate on the fixed base 110, ultimately driving the first clamping petal 130 and the second clamping petal 140 to open and close synchronously.

[0040] There are two sets of conveying components 300, which are respectively located near the clamping ends of the first clamping flap 130 and the second clamping flap 140, and are slidably mounted on the surface of the slide block 150. Each set of conveying components 300 includes several sets of peristaltic flaps 310 and eccentric wheels 320. The eccentric wheels 320 are fixedly sleeved on the surface of the output shaft sleeve 161, and the output shaft sleeve 161 is rotatably sleeved on the outer surface of the fixed pin 131, and is connected to the conveying drive motor 160 through a linkage structure, thereby driving the eccentric wheels 320 to rotate.

[0041] The peristaltic flap 310 is made of a flexible elastic material, and its inner side is provided with a bearing ring 311, which can be sleeved on the surface of the eccentric wheel 320. When the eccentric wheel 320 rotates, the peristaltic flap 310 generates periodic elastic deformation, producing a peristaltic pushing effect on the clamped material, thereby realizing the continuous propulsion of the material. Each peristaltic flap 310 is also provided with a peristaltic rack 312 on one side, which is arranged along the conveying direction to further increase the clamping force and assist in propulsion.

[0042] In one specific embodiment, each conveying assembly includes at least two eccentric wheels 320 and peristaltic flaps 310, which cooperate with each other to form a continuous and stable material conveying path, which is beneficial to improving welding efficiency and accuracy.

[0043] Furthermore, the output shaft sleeve 161 is slidably fitted with the fixed pin 131 and embedded inside the slide block 150 to maintain a compact structure and stable power transmission. In addition, both the fixed seat 110 and the guide seat 120 have through holes on their surfaces to allow welding materials to pass through, thereby realizing a continuous operation from clamping to delivery to the welding point.

[0044] The material conveying mechanism for laser welding of this utility model has the following significant technical effects: the adjustable clamping structure is suitable for materials of various specifications; the peristaltic propulsion conveying component has flexible adaptability and stable conveying.

[0045] In the description of this specification, the terms "one embodiment," "some embodiments," "specific embodiment," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0046] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A material conveying mechanism for laser welding, characterized by, The utility model provides a kind of welding material conveying device, including adjusting clamp group (100), drive motor (200) and conveying assembly (300), the adjusting clamp group (100) includes fixed seat (110), guide seat (120), first clamping piece (130) and second clamping piece (140), one end of the first clamping piece (130) and second clamping piece (140) is rotatably connected with the surface of fixed seat (110), the surface both ends of guide seat (120) are equipped with guide pin (121), and guide pin (121) is slidably sleeved on the surface of first clamping piece (130) and second clamping piece (140), and one end of the first clamping piece (130) and second clamping piece (140) is fixedly installed with fixed pin rod (131) and conveying drive motor (160), the surface of fixed pin rod (131) is slidably sleeved with sliding seat (150); The drive motor (200) is fixed to the surface of the fixed seat (110), and the output end of the drive motor (200) is connected with a lead screw (210), the surface of the guide seat (120) is provided with a screw hole matched with the lead screw (210) and is sleeved on the surface of the lead screw (210); the conveying assembly (300) is two groups and is arranged at the end of the first clamping piece (130) and the second clamping piece (140) and is slidably installed on the surface of the sliding seat (150), The conveying assembly (300) includes a plurality of groups of peristaltic pieces (310) and eccentric wheels (320), the eccentric wheel (320) is fixedly sleeved on the surface of the output shaft sleeve (161), the inner side of the peristaltic piece (310) is provided with a bearing ring (311) sleeved on the surface of the eccentric wheel (320), one side of the peristaltic piece (310) is provided with a peristaltic rack (312), and the peristaltic pieces (310) on the surfaces of the two fixed pin rods (131) are oppositely arranged.

2. The material transport mechanism for laser welding of claim 1, wherein: The drive motor (200) is a stepper motor or a servo motor to improve the precision of the movement of the guide seat (120), and the drive motor (200) and the lead screw (210) are used to control the relative movement between the fixed seat (110) and the guide seat (120).

3. The material transport mechanism for laser welding of claim 1, wherein: The guide seat (120) is driven by the lead screw (210) to realize the adjustable spacing between the first clamping piece (130) and the second clamping piece (140) to adapt to different specifications of the materials to be welded.

4. The material transport mechanism for laser welding of claim 1, wherein: The peristaltic piece (310) is made of elastic material to improve the stability and buffering performance of material conveying.

5. The material transport mechanism for laser welding of claim 1, wherein: Each conveying assembly (300) includes two or more eccentric wheels (320) and peristaltic pieces (310) to realize continuous material advancing effect.

6. The material transport mechanism for laser welding of claim 1, wherein: The output shaft sleeve (161) is rotatably sleeved on the surface of the fixed pin rod (131), and the fixed pin rod (131) and the output shaft sleeve (161) are slidably sleeved on the inner side of the sliding seat (150).

7. The material transport mechanism for laser welding of claim 1, wherein: The peristaltic rack (312) is arranged along the material conveying direction to improve the clamping force on the material, and the surfaces of the fixed seat (110) and the guide seat (120) are provided with through holes for material transmission.

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