Laser welding device with workpiece fixing structure

Abstract

The utility model discloses a laser welding device with a workpiece fixing structure, which belongs to the technical field of laser welding and comprises a welding component, an adjusting component and two fixing components. According to the device, the electric push rod is controlled to extend, so that the first clamping plate and the two clamping plates are matched with each other to form arc-shaped clamping plate structures of different sizes, the working second motor drives the two threaded rods to rotate, and the two rotating threaded rods drive the two clamping plate structures to get close to each other or get away from each other; then the fixing assembly can fix tubular workpieces of different sizes according to actual conditions, an electric push rod is controlled to drive two limiting blocks to be close to each other, so that a second clamping plate and a first clamping plate are located on the same plane to form plate-shaped clamping plate structures, and then the plate-shaped clamping plate structures close to each other can fix the plate-shaped workpieces under different belts; the device can be adjusted in a self-adaptive mode according to the actual situation of a workpiece without replacing a clamping plate structure, and operation is convenient and fast.

Description

TECHNICAL FIELD

[0001] The utility model belongs to laser welding technical field, concretely relates to a laser welding device with workpiece fixing structure. BACKGROUND

[0002] Laser welding is a kind of high-efficiency precision welding method using high-energy density laser beam as heat source, and laser welding is one of important aspects of laser material processing technology application, and laser welding fixture is the tool used to ensure the position of welding part, improve assembly accuracy and efficiency and prevent welding deformation.

[0003] Such as Chinese patent (publication number: CN211028632U) discloses a reversible laser welding machine clamping mechanism, which can adjust the length and width of the part to be welded according to the need by setting the fixing part and adjusting rod, improve the flexibility of the clamping mechanism, the limiting rod improves the stability of clamping to avoid loosening in the process of welding, the placing table can be directly placed on the placing table, avoid hand clamping and improve safety, the handle can be adjusted, the adjusting rod is clamped inward, and the lifting of the lifting rod can be controlled to facilitate use;The fixing structure in the welding device is set as movable arc-shaped clamping plate, but when the plate-shaped workpiece needs to be fixed, the fixing structure needs to be replaced with the shape and size of the workpiece to be welded, so that the workpiece can be fixed, which not only is complicated to operate, but also reduces its adaptability, therefore, a laser welding device with workpiece fixing structure is needed to solve the above problems. UTILITY MODEL CONTENTS

[0004] The utility model aims at providing a laser welding device with workpiece fixing structure to solve the problems in the background art.

[0005] To achieve the above object, the utility model provides the following technical scheme: a laser welding device with workpiece fixing structure, which comprises a welding assembly, an adjusting assembly and two fixing assemblies, the welding assembly comprises a welding frame, the adjusting assembly comprises a pneumatic cylinder, the pneumatic cylinder is connected to the top of the welding frame, and the movable end of the pneumatic cylinder is connected with a movable plate.

[0006] The fixing assembly comprises a rotating plate and two clamping assemblies, one side of the two rotating plates away from each other is connected with a support pipe and a first motor, one end of the two support pipes away from each other is connected with a bearing, the two bearings are connected with the movable plate and the welding frame respectively, the rotating plate is connected with a second motor, both ends of the second motor are connected with threaded rods, and the two threaded rods are rotatably connected in the rotating plate.

[0007] The clamping assembly comprises a first clamping plate, both of which are threadedly connected outside a threaded rod, both sides of both of the first clamping plates are rotationally connected with two second clamping plates through rotating shafts, a through slot is formed in the second clamping plate, a gear is connected outside the rotating shaft, a second limiting slot is formed in the first clamping plate, an electric push rod is connected in the second limiting slot, both movable ends of the electric push rod are connected with limiting blocks, the limiting blocks are connected with a rack, and the rack is engaged with the gear.

[0008] As a preferred scheme, a first limiting slot is formed in the welding frame, and a welding device is connected in the welding frame.

[0009] As a preferred scheme, the movable plate is slidingly connected in the first limiting slot, and the limiting block is slidingly connected in the second limiting slot.

[0010] As a preferred scheme, the first motor is arranged in the supporting pipe, and the gear is arranged in the through slot.

[0011] As a preferred scheme, two guide rods are connected in the rotating plate, the threaded directions of the two threaded rods are opposite, and the threaded rod is arranged between the two guide rods.

[0012] As a preferred scheme, a sliding hole is formed in the rotating plate, and the first clamping plate is slidingly connected in the sliding hole.

[0013] As a preferred scheme, one side of the two first clamping plates close to each other is arc-shaped.

[0014] Compared with the prior art, the utility model has the advantages that:

[0015] The utility model discloses, control electric push rod elongation makes first clamping plate and two clamping plates mutually cooperate and can constitute the arc-shaped clamping plate structure of different sizes, and the second motor of work drives two threaded rods to rotate, and the threaded rod of rotation drives two clamping plate structures to be close to each other or be far away from each other, then fixed assembly can be fixed to the tubular workpiece of different sizes according to actual conditions, control electric push rod drives two limiting blocks to be close to each other, makes second clamping plate and first clamping plate be in the same plane, and constitute the clamping plate structure of board, then the board-shaped clamping plate structure that is close to each other can be fixed to the board-shaped workpiece of different underclothes, so that the device can be self-adapting adjustment according to the actual situation of workpiece without replacing the clamping plate structure, and the operation is convenient.

[0016] The utility model discloses through setting up limiting block and second limiting slot, because limiting block slidingly connects in second limiting slot, second limiting slot can position limiting block, makes limiting block not to shake when moving, and the rack connected with limiting block can move stably. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is the structure schematic diagram of the front view of the utility model;

[0018] Figure 2 It is the structure schematic diagram of the partial front view of the utility model;

[0019] Figure 3 It is the structure schematic diagram of the partial front view of the utility model;

[0020] Figure 4 It is the sectional structure schematic diagram of the partial top view of the utility model;

[0021] Figure 5 It is the sectional structure schematic diagram of the partial side view of the utility model;

[0022] Figure 6 It is the structure schematic diagram of the top view of the movable plate of the utility model.

[0023] In the figure: 1, welding assembly; 11, welding frame; 12, first limiting groove; 13, welding equipment; 2, adjusting assembly; 21, air cylinder; 22, movable plate; 3, fixed assembly; 31, rotating plate; 32, support pipe; 33, first motor; 34, bearing; 35, second motor; 36, threaded rod; 37, clamping assembly; 371, first clamping plate; 372, rotating shaft; 373, second clamping plate; 374, through slot; 375, gear; 376, electric push rod; 377, second limiting groove; 378, limiting block; 379, rack; 38, guide rod; 39, sliding hole. DETAILED DESCRIPTION

[0024] The utility model will be further described below in combination with examples.

[0025] The following examples are used to illustrate the utility model, but cannot be used to limit the protection scope of the utility model. The conditions in the examples can be further adjusted according to specific conditions, and simple improvements of the method of the utility model under the concept of the utility model all belong to the range required to be protected by the utility model.

[0026] Please refer to Figures 1-6 The utility model provides a kind of laser welding device with workpiece fixed structure, including welding assembly 1, adjusting assembly 2 and two fixed assemblies 3, welding assembly 1 includes welding frame 11, adjusting assembly 2 includes air cylinder 21, air cylinder 21 is connected at the top of welding frame 11, the movable end of air cylinder 21 is connected with movable plate 22;

[0027] The fixed assembly 3 comprises two rotating plates 31 and two clamping assemblies 37, one side of each of the two rotating plates 31 is connected with a support pipe 32 and a first motor 33, one end of each of the two support pipes 32 is connected with a bearing 34, the two bearings 34 are connected with the movable plate 22 and the welding frame 11 respectively, the rotating plate 31 is connected with a second motor 35, both ends of the second motor 35 are connected with threaded rods 36, the two threaded rods 36 are rotatably connected in the rotating plate 31, by arranging the bearing 34 and the support pipe 32, the support pipe 32 rotatably connected with the bearing 34 can support and limit the two rotating rotating plates 31 respectively, so that the rotating plate 31 can stably rotate under the action of the motor, and then the working welding equipment 13 can weld the tubular workpiece fixed on the rotating plate 31 during rotation;

[0028] The clamping assembly 37 comprises a first clamping plate 371, the two first clamping plates 371 are threadedly connected outside the threaded rod 36, the two sides of the two first clamping plates 371 are rotatably connected with two second clamping plates 373 through shafts 372 respectively, a through groove 374 is formed in the second clamping plate 373, a gear 375 is connected outside the shaft 372, a second limiting groove 377 is formed in the first clamping plate 371, an electric push rod 376 is connected in the second limiting groove 377, both movable ends of the electric push rod 376 are connected with limiting blocks 378, the limiting blocks 378 are connected with a rack 379, the rack 379 is engaged with the gear 375, by arranging the rack 379 and the gear 375, the moving rack 379 can drive the shaft 372 to rotate in the first clamping plate 371 through the gear 375.

[0029] A first limiting groove 12 is formed in the welding frame 11, a welding equipment 13 is connected in the welding frame 11, the movable plate 22 is slidably connected in the first limiting groove 12, by arranging the first limiting groove 12 and the movable plate 22, because the movable plate 22 is slidably connected in the first limiting groove 12, the first limiting groove 12 can limit the movable plate 22, so that the upper fixed assembly 3 connected with the movable plate 22 can stably move along the direction of the first limiting groove 12;

[0030] The limiting block 378 is slidably connected in the second limiting groove 377, by arranging the limiting block 378 and the second limiting groove 377, because the limiting block 378 is slidably connected in the second limiting groove 377, the second limiting groove 377 can limit the limiting block 378, so that the limiting block 378 will not shake when moving, and the rack 379 connected with the limiting block 378 can stably move;

[0031] The first motor 33 is arranged in the supporting pipe 32, the gear 375 is arranged in the through slot 374, two guide rods 38 are connected in the rotating plate 31, the threaded rods 36 are oppositely threaded, the threaded rods 36 are arranged between the two guide rods 38, the guide rods 38 can limit the first clamping plates 371 through the arrangement of the guide rods 38 and the first clamping plates 371, so that the first clamping plates 371 can move along the axial direction of the guide rods 38 stably under the action of the rotating threaded rods 36.

[0032] The rotating plate 31 is provided with a sliding hole 39, and the first clamping plates 371 are slidably connected in the sliding hole 39; and the surfaces of the two first clamping plates 371 located at the lower part and the upper part are both arc-shaped.

[0033] The working principle and the use process of the utility model are as follows: when the device needs to be used, when the tubular workpiece needs to be welded, the electric push rod 376 is controlled to be elongated, the elongated electric push rod 376 drives the two racks 379 to move away from each other through the two limiting blocks 378, the two racks 379 that move away from each other both drive the two second clamping plates 373 to rotate in the two first clamping plates 371 through the gear 375 and the rotating shaft 372, so that the first clamping plates 371 and the two clamping plates can form arc-shaped clamping plate structures of different sizes in cooperation, the second motor 35 drives the two threaded rods 36 to rotate, the rotating two threaded rods 36 drive the two clamping plate structures to move close to each other or move away from each other, and then the fixing assembly 3 can fix tubular workpieces of different sizes according to actual conditions.

[0034] When the plate-shaped part needs to be welded, the electric push rod 376 is controlled to drive the two limiting blocks 378 to move close to each other, so that the rotating gear 375 can drive the second clamping plate 373 to rotate through the rotating shaft 372, so that the second clamping plate 373 is in the same plane as the first clamping plate 371, forming a plate-shaped clamping plate structure, and then the plate-shaped clamping plate structures that move close to each other can fix plate-shaped workpieces of different sizes.

[0035] Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and spirits of the utility model, the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A laser welding device with a workpiece holding structure, comprising a welding assembly (1), an adjustment assembly (2) and two holding assemblies (3), characterized in that: The welding assembly (1) comprises a welding frame (11), the adjusting assembly (2) comprises a cylinder (21), the cylinder (21) is connected at the top of the welding frame (11), and the movable end of the cylinder (21) is connected with a movable plate (22); The fixing assembly (3) comprises two clamping assemblies (37) and a rotating plate (31), the faraway sides of the two rotating plates (31) are connected with support pipes (32) and first motors (33), the faraway ends of the two support pipes (32) are connected with bearings (34), the two bearings (34) are connected with the movable plate (22) and the welding frame (11) respectively, the rotating plate (31) is connected with a second motor (35) inside, the two ends of the second motor (35) are connected with threaded rods (36), and the two threaded rods (36) are rotatably connected in the rotating plate (31). The clamping assembly (37) comprises a first clamping plate (371), the two first clamping plates (371) are threadedly connected outside the threaded rods (36), the two sides of the two first clamping plates (371) are rotatably connected with two second clamping plates (373) through shafts (372) respectively, the second clamping plate (373) is provided with a through groove (374) inside, the shaft (372) is connected with a gear (375) outside, the first clamping plate (371) is provided with a second limiting groove (377) inside, the second limiting groove (377) is connected with an electric push rod (376), the two movable ends of the electric push rod (376) are connected with limiting blocks (378), the limiting blocks (378) are connected with a rack (379), and the rack (379) is meshed with the gear (375).

2. The laser welding apparatus with a workpiece holding structure according to claim 1, characterized by: The welding frame (11) is provided with a first limiting groove (12) inside, and the welding frame (11) is connected with a welding device (13) inside.

3. The laser welding apparatus with a workpiece holding structure according to claim 2, characterized by: The movable plate (22) is slidably connected in the first limiting groove (12), and the limiting blocks (378) are slidably connected in the second limiting grooves (377).

4. The laser welding apparatus with a workpiece holding structure according to claim 1, characterized by: The first motor (33) is arranged in the support pipe (32), and the gear (375) is arranged in the through groove (374).

5. The laser welding apparatus having a workpiece holding structure according to claim 1, characterized by: The rotating plate (31) is connected with two guide rods (38) inside, the threaded directions of the two threaded rods (36) outside are opposite, and the threaded rods (36) are arranged between the two guide rods (38).

6. The laser welding apparatus having a workpiece holding structure according to claim 1, characterized by: The rotating plate (31) is provided with a sliding hole (39) inside, and the first clamping plates (371) are slidably connected in the sliding hole (39).

7. The laser welding apparatus with a workpiece holding structure according to claim 1, characterized by: The faraway sides of the two first clamping plates (371) are both provided with arc shapes.

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